CN118169004A - Detection method of filter - Google Patents
Detection method of filter Download PDFInfo
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- CN118169004A CN118169004A CN202410289403.6A CN202410289403A CN118169004A CN 118169004 A CN118169004 A CN 118169004A CN 202410289403 A CN202410289403 A CN 202410289403A CN 118169004 A CN118169004 A CN 118169004A
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 239000013049 sediment Substances 0.000 claims description 4
- 238000009530 blood pressure measurement Methods 0.000 claims 2
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a detection method of a filter, which is realized based on a filter detection device, wherein the filter detection device comprises a first pipeline connected to an inlet of the filter and a second pipeline connected to an outlet of the filter, the other end of the first pipeline is connected with a dirty water collecting mechanism, a power pump and an inlet pressure measuring mechanism are arranged on the first pipeline, a filtered water collecting mechanism is arranged at the other end of the second pipeline, and an outlet pressure measuring mechanism, an adjusting valve and a flowmeter are arranged on the second pipeline. The invention can detect the turbidity removal rate and the solid content removal rate of the filter.
Description
Technical Field
The invention relates to the technical field of filters, in particular to a detection method of a filter.
Background
In order to determine the performance of the filter, it is necessary to detect the turbidity removal rate, the solid content removal rate, and the like of the filter. In the existing filter detection, the detection result can be obtained only by sampling at fixed time and detecting through various instruments. The detection is complicated in operation, uncertainty exists in manual sampling, and inaccuracy of data is greatly increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a detection method of a filter.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The invention discloses a detection method of a filter, which is realized based on a filter detection device, wherein the filter detection device comprises a first pipeline connected to an inlet of the filter and a second pipeline connected to an outlet of the filter, the other end of the first pipeline is connected with a dirty water collecting mechanism, a power pump and an inlet pressure measuring mechanism are arranged on the first pipeline, a filtered water collecting mechanism is arranged at the other end of the second pipeline, an outlet pressure measuring mechanism, a regulating valve and a flowmeter are arranged on the second pipeline, the dirty water collecting mechanism and the filtered water collecting mechanism have the same structure, the dirty water collecting mechanism comprises a water tank, a weighing block is arranged at the bottom of the water tank, a first linear guide rail is arranged on the inner side wall of the water tank, a first slide block is arranged on the first linear guide rail in a sliding way, and a turbidity sensor is arranged on the first slide block;
the method comprises the following specific steps:
A sufficient amount of water and sediment are added into a water tank of the dirty water collecting mechanism;
the power pump is opened, and the regulating valve is regulated, so that the flow and the pressure are kept stable;
At the time T1, connecting the second pipeline with the filtered water collecting mechanism, and recording the weight m j1 of the water tank in the dirty water collecting mechanism at the time, the turbidity value T j of the water tank in the dirty water collecting mechanism and the weight m i1 of the water tank in the filtered water collecting mechanism;
At the time T2, disconnecting the second pipeline from the filtered water collecting mechanism, recording the weight m j2 of the water tank in the dirty water collecting mechanism at the time, the weight m i2 of the water tank in the filtered water collecting mechanism, and the turbidity value T i in the water tank in the filtered water collecting mechanism;
turbidity removal rate between time t1 and time t2
Solids removal efficiency between time t1 and time t2
Further, a second linear guide rail is arranged on one side, opposite to the inner side wall provided with the first linear guide rail, of the water tank, a second sliding block is arranged on the second linear guide rail, and a density sensor is arranged on the second sliding block.
Further, dirty water collection system still includes the support that is located outside the water tank, and support upper portion is provided with the motor, and motor drive is connected with the (mixing) shaft, and part of (mixing) shaft is located the water tank, and part that the (mixing) shaft is located the water tank is connected with the stirring leaf, and in the testing process, stirring leaf stirring liquid makes the water in the water tank and silt misce bene.
Further, one end of the second pipeline, which is close to the filtered water collecting mechanism, is connected with a three-way valve, the other two ends of the three-way valve are respectively connected with a first branch pipe and a second branch pipe, the first branch pipe is connected with the filtered water collecting mechanism, and the second branch pipe is connected with the collecting box.
And before the time t1, the three-way valve controls the pipeline II to be communicated with the branch pipe II, so that liquid in the pipeline II flows into the collecting tank, after the time t1, the three-way valve controls the branch pipe I to be communicated with the pipeline II, so that liquid flows into the filtered water collecting mechanism, and after the time t2, the three-way valve controls the branch pipe II to be communicated with the pipeline II.
Further, the inlet pressure measuring mechanism and the outlet pressure measuring mechanism are identical in structure, the inlet pressure measuring mechanism comprises a pipeline, a pressure stabilizing cavity is arranged in the middle of the pipeline, flanges are connected to two ends of the pipeline, a connector is arranged on the pressure stabilizing cavity, and a pressure gauge and a pressure transmitter are arranged on the connector. the pressure value data of the front end and the rear end of the filter 1 are respectively acquired through an inlet pressure measuring mechanism and an outlet pressure measuring mechanism every 10-30 minutes from the time t1 to the time t2, the water head loss is calculated, and the water head loss calculation formula is that
Δhp＝(pi-pj)×100，
Wherein Deltah p is a head loss value; p i is the pressure at the filter inlet; p j is the pressure at the outlet of the filter, and if the head loss value is greater than 0.1MPa, the detection is stopped to detect whether the filter is blocked.
The beneficial effects of the invention are as follows: the turbidity removal rate and the solid content removal rate of the filter in a period of time can be accurately detected.
Drawings
FIG. 1 is a perspective view of a filter detection device according to the present embodiment;
FIG. 2 is a schematic diagram of a filter detection device according to the present embodiment;
FIG. 3 is a schematic view of a dirty water collecting mechanism in the present embodiment;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
FIG. 5 is an enlarged schematic view at B in FIG. 3;
fig. 6 is a schematic structural diagram of the inlet pressure measuring mechanism in this embodiment.
Reference numerals: 1. a filter; 2. a first pipeline; 3. a second pipeline; 4. a dirty water collection mechanism; 5. a filtered water collection mechanism; 6. a power pump; 7. an inlet pressure measuring mechanism; 8. an outlet pressure measuring mechanism; 9. a regulating valve; 10. a flow meter; 11. a collection box; 12. a three-way valve; 13. a branch pipe I; 14. a branch pipe II; 15. a water tank; 16. weighing weight; 17. a bracket; 18. a motor; 19. a stirring shaft; 20. stirring the leaves; 21. a first linear guide rail; 22. a first sliding block; 23. a turbidity sensor; 24. a second linear guide rail; 25. a second slide block; 26. a density sensor; 27. a pipe; 28. a flange; 29. a pressure gauge; 30. a pressure transmitter; 31. a pressure stabilizing cavity; 32. and (5) a connector.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A detection method of a filter is realized based on a filter detection device. As shown in fig. 1-6, the filter detection device comprises a first pipeline 2 connected to the inlet of the filter 1 and a second pipeline 3 connected to the outlet of the filter 1, wherein the other end of the first pipeline 2 is connected with a dirty water collecting mechanism 4, a power pump 6 and an inlet pressure measuring mechanism 7 are arranged on the first pipeline 2, the inlet pressure measuring mechanism 7 is closer to the filter 1 relative to the power pump 6, a filtered water collecting mechanism 5 is arranged at the other end of the second pipeline 3, an outlet pressure measuring mechanism 8, a regulating valve 9 and a flowmeter 10 are arranged on the second pipeline 3, the outlet pressure measuring mechanism 8, the regulating valve 9 and the flowmeter 10 are arranged at the position closest to the filter 1, the dirty water collecting mechanism 4 and the filtered water collecting mechanism 5 have the same structure, the dirty water collecting mechanism 4 comprises a water tank 15, a weighing block 16 is arranged at the bottom of the water tank 15, a linear guide rail 21 is arranged on the inner side wall of the water tank 15, a slide block 22 is arranged on the linear guide rail 21, and a turbidity sensor 23 is arranged on the slide block 22.
The specific steps of the filter detection method are as follows:
1. Sufficient water and sediment are added into the water tank 15 of the dirty water collecting mechanism 4;
2. the power pump 6 is opened, and the regulating valve 9 is regulated, so that the flow and the pressure are kept stable;
3. At time T1, connecting the second pipeline 3 with the filtered water collecting mechanism 5, and recording the weight m j1 of the water tank 15 in the dirty water collecting mechanism 4 at the time, wherein the turbidity value T j in the water tank 15 in the dirty water collecting mechanism 4 and the weight m i1 of the water tank 15 in the filtered water collecting mechanism 5;
4. At time T2, the connection between the second pipeline 3 and the filtered water collecting mechanism 5 is disconnected, the weight m j2 of the water tank 15 in the dirty water collecting mechanism 4 at the time is recorded, the weight m i2 of the water tank 15 in the filtered water collecting mechanism 5, and the turbidity value T i in the water tank 15 in the filtered water collecting mechanism 5.
5. And calculating the turbidity removal rate and the solid content removal efficiency according to the acquired data.
Turbidity removal rate between time t1 and time t2
Solids removal efficiency between time t1 and time t2
The high-precision strain gauge is arranged in the weighing block 16, the strain gauge deforms, the resistance value of the strain gauge correspondingly changes, and the weight of the total water tank 15 of the dirty water collecting mechanism 4 and the filtered water collecting mechanism 5 is calculated.
Further, a second linear guide rail 24 is installed on the side, opposite to the inner side wall, where the first linear guide rail 21 is installed, of the water tank 15, a second slide block 25 is arranged on the second linear guide rail 24, and a density sensor 26 is arranged on the second slide block 25.
The density sensor 26 is used for detecting the density value of the liquid in the water tank 15 in the dirty water collecting mechanism 4 and the filtered water collecting mechanism 5, so as to detect the density change, and if the filtered water quality density is not changed or the change value is smaller, feedback is given, an alarm is given, whether the filter is damaged or not is required to be detected, and the experimental stability is ensured.
The mass is estimated by the detected density value and the liquid in the water tank 15, and compared with the mass change calculated by the weighing platform, the data is removed when the deviation of the detected density value and the liquid is larger, and the weighing is performed again.
The cooperation of linear guide and slider for turbidity sensor 23, density sensor 26 can be adjusted in the height of water tank 15, can guarantee to test under different liquid levels, reduces experimental limitation.
Further, dirty water collection system 4 still includes the support 17 that is located outside the water tank 15, support 17 upper portion is provided with motor 18, motor 18 drive is connected with (mixing) shaft 19, part of (mixing) shaft 19 is located the water tank 15, part that (mixing) shaft 19 is located the water tank 15 is connected with stirring leaf 20, in-process, motor 18 passes through (mixing) shaft 19 drive stirring leaf 20 rotation, stir liquid through stirring leaf 20, make the water in the water tank 15 and silt misce bene, prevent that the silt from sinking and lead to turbidity value measurement inaccuracy, then lead to the inaccuracy of test result.
Further, one end of the second pipeline 3, which is close to the filtered water collecting mechanism 5, is connected with a three-way valve 12, the other two ends of the three-way valve 12 are respectively connected with a first branch pipe 13 and a second branch pipe 14, the first branch pipe 13 is connected with the filtered water collecting mechanism 5, and the second branch pipe 14 is connected with the collecting box 11.
Before the time t1, the three-way valve 12 controls the pipeline II 3 to be communicated with the branch pipe II 14, so that liquid in the pipeline II 3 flows into the collecting box 11, the collected liquid can be continuously used again and subsequently through the collecting box 11, waste is reduced, after the time t1, the three-way valve 12 controls the branch pipe I13 to be communicated with the pipeline II 3, so that the liquid flows into the filtered water collecting mechanism 5, and after the time t2, the three-way valve 12 controls the branch pipe II 14 to be communicated with the pipeline II 3.
Further, the inlet pressure measuring mechanism 7 and the outlet pressure measuring mechanism 8 are identical in structure, the inlet pressure measuring mechanism 7 comprises a pipeline 27, a pressure stabilizing cavity 31 is arranged in the middle of the pipeline 27, flanges 28 are connected to two ends of the pipeline 27, a connector 32 is arranged on the pressure stabilizing cavity 31, and a pressure gauge 29 and a pressure transmitter 30 are arranged on the connector 32.
The pressure stabilizing cavity 31 enables the measured pressure to be stable, and the front end pressure and the rear end pressure of the filter can be tested more accurately.
By arranging the pressure gauge 29 and the pressure transmitter 30, the pressure value is detected respectively, and the results of the pressure gauge and the pressure transmitter are compared, so that the accuracy of data is ensured.
The pressure value data of the front end and the rear end of the filter 1 are respectively collected through the inlet pressure measuring mechanism 7 and the outlet pressure measuring mechanism 8 every 10-30 minutes from the time t1 to the time t2, the water head loss is calculated, and the water head loss calculation formula is as follows
Δhp＝(pi-pj)×100，
Wherein Deltah p is a head loss value; p i is the pressure at the filter inlet; p j is the pressure at the outlet of the filter, and if the head loss value is greater than 0.1MPa, the detection is stopped to detect whether the filter is blocked. The blocked filter is reused for detection after being washed clean.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (5)
1. The detection method of the filter is characterized by being realized based on a filter detection device, wherein the filter detection device comprises a first pipeline (2) connected to an inlet of the filter (1) and a second pipeline (3) connected to an outlet of the filter (1), the other end of the first pipeline (2) is connected with a dirty water collection mechanism (4), a power pump (6) and an inlet pressure measurement mechanism (7) are arranged on the first pipeline (2), a filtered water collection mechanism (5) is arranged at the other end of the second pipeline (3), an outlet pressure measurement mechanism (8), a regulating valve (9) and a flowmeter (10) are arranged on the second pipeline (3), the structures of the dirty water collection mechanism (4) and the filtered water collection mechanism (5) are the same, the dirty water collection mechanism (4) comprises a water tank (15), a weighing block (16) is arranged at the bottom of the water tank (15), a linear guide rail I (21) is arranged on an inner side wall of the water tank (15), a slide block I (22) is arranged on the linear guide rail I (21), and a turbidity sensor (23) is arranged on the slide block I (22);
the method comprises the following specific steps:
a sufficient amount of water and sediment are added into a water tank (15) of the dirty water collecting mechanism (4);
The power pump (6) is opened, and the regulating valve (9) is regulated, so that the flow and the pressure are kept stable;
at the time T1, the pipeline II (3) is communicated with the filtered water collecting mechanism (5), the weight m j1 of the water tank (15) in the dirty water collecting mechanism (4) at the time is recorded, the turbidity value T j in the water tank (15) in the dirty water collecting mechanism (4) and the weight m i1 of the water tank (15) in the filtered water collecting mechanism (5) are recorded;
At the time T2, the pipeline II (3) is disconnected from the filtered water collection mechanism (5), the weight m j2 of the water tank (15) in the dirty water collection mechanism (4) at the time is recorded, the weight m i2 of the water tank (15) in the filtered water collection mechanism (5), and the turbidity value T i in the water tank (15) in the filtered water collection mechanism (5) is recorded;
turbidity removal rate between time t1 and time t2
Solids removal efficiency between time t1 and time t2
2. The method for detecting a filter according to claim 1, wherein a second linear guide rail (24) is installed on a side of the water tank (15) opposite to the inner side wall on which the first linear guide rail (21) is installed, a second slide block (25) is arranged on the second linear guide rail (24), and a density sensor (26) is arranged on the second slide block (25).
3. The detection method of a filter according to claim 1, wherein the dirty water collecting mechanism (4) further comprises a support (17) located outside the water tank (15), a motor (18) is arranged on the upper portion of the support (17), the motor (18) is connected with a stirring shaft (19) in a driving mode, a part of the stirring shaft (19) is located in the water tank (15), a part of the stirring shaft (19) located in the water tank (15) is connected with stirring blades (20), and in the detection process, the stirring blades (20) stir liquid to enable water and sediment in the water tank (15) to be mixed evenly.
4. The detection method of a filter according to claim 1, wherein one end of the second pipeline (3) close to the filtered water collecting mechanism (5) is connected with a three-way valve (12), the other two ends of the three-way valve (12) are respectively connected with a first branch pipe (13) and a second branch pipe (14), the first branch pipe (13) is connected with the filtered water collecting mechanism (5), the second branch pipe (14) is connected with the collecting tank (11), the three-way valve (12) controls the second pipeline (3) to be communicated with the second branch pipe (14) before the time t1, so that liquid in the second pipeline (3) flows into the collecting tank (11), the three-way valve (12) controls the first branch pipe (13) to be communicated with the second pipeline (3) after the time t1, so that liquid flows into the filtered water collecting mechanism (5), and the three-way valve (12) controls the second branch pipe (14) to be communicated with the second pipeline (3) after the time t 2.
5. The method for detecting a filter according to claim 1, wherein the inlet pressure measuring mechanism (7) has the same structure as the outlet pressure measuring mechanism (8), the inlet pressure measuring mechanism (7) comprises a pipeline (27), a pressure stabilizing cavity (31) is arranged at the middle position of the pipeline (27), flanges (28) are connected to two ends of the pipeline (27), a connector (32) is arranged on the pressure stabilizing cavity (31), a pressure gauge (29) and a pressure transmitter (30) are arranged on the connector (32), pressure value data of the front end and the rear end of the filter (1) are acquired through the inlet pressure measuring mechanism (7) and the outlet pressure measuring mechanism (8) respectively every 10-30 minutes, water head loss is calculated, and a water head loss calculation formula is that
Δhp＝(pi-pj)×100，
Wherein Deltah p is a head loss value; p i is the pressure at the filter inlet; p j is the pressure at the outlet of the filter, and if the head loss value is greater than 0.1MPa, the detection is stopped to detect whether the filter is blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410289403.6A CN118169004A (en) | 2024-03-14 | 2024-03-14 | Detection method of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410289403.6A CN118169004A (en) | 2024-03-14 | 2024-03-14 | Detection method of filter |
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| Publication Number | Publication Date |
|---|---|
| CN118169004A true CN118169004A (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410289403.6A Pending CN118169004A (en) | 2024-03-14 | 2024-03-14 | Detection method of filter |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024927A (en) * | 2000-09-27 | 2002-04-03 | 백문구 | Filter tester |
| CN109085005A (en) * | 2018-09-25 | 2018-12-25 | 中国农业大学 | A kind of agricultural filter performance synthesis test platform |
| CN109490170A (en) * | 2018-12-12 | 2019-03-19 | 日丰企业（佛山）有限公司 | Filter test system |
| CN112014296A (en) * | 2020-09-30 | 2020-12-01 | 索特传动设备有限公司 | Filter test system and test method |
| CN112999745A (en) * | 2021-02-09 | 2021-06-22 | 珠海格力电器股份有限公司 | Method and device for determining service life of filter element |
| CN214763861U (en) * | 2021-04-01 | 2021-11-19 | 天津市远景环保科技有限公司 | A filter element filter function test bench |
| CN217846277U (en) * | 2022-06-28 | 2022-11-18 | 厦门控诚环保科技有限公司 | Turbidimeter capable of automatically removing bubbles |
| CN218766478U (en) * | 2022-09-26 | 2023-03-28 | 郑州恒博环境科技股份有限公司 | On-line density detector for sealed tank |
-
2024
- 2024-03-14 CN CN202410289403.6A patent/CN118169004A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024927A (en) * | 2000-09-27 | 2002-04-03 | 백문구 | Filter tester |
| CN109085005A (en) * | 2018-09-25 | 2018-12-25 | 中国农业大学 | A kind of agricultural filter performance synthesis test platform |
| CN109490170A (en) * | 2018-12-12 | 2019-03-19 | 日丰企业（佛山）有限公司 | Filter test system |
| CN112014296A (en) * | 2020-09-30 | 2020-12-01 | 索特传动设备有限公司 | Filter test system and test method |
| CN112999745A (en) * | 2021-02-09 | 2021-06-22 | 珠海格力电器股份有限公司 | Method and device for determining service life of filter element |
| CN214763861U (en) * | 2021-04-01 | 2021-11-19 | 天津市远景环保科技有限公司 | A filter element filter function test bench |
| CN217846277U (en) * | 2022-06-28 | 2022-11-18 | 厦门控诚环保科技有限公司 | Turbidimeter capable of automatically removing bubbles |
| CN218766478U (en) * | 2022-09-26 | 2023-03-28 | 郑州恒博环境科技股份有限公司 | On-line density detector for sealed tank |
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