CN108593522B - Automatic online labeling water purification filter element test line and labeling method - Google Patents
Automatic online labeling water purification filter element test line and labeling method Download PDFInfo
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- CN108593522B CN108593522B CN201810487352.2A CN201810487352A CN108593522B CN 108593522 B CN108593522 B CN 108593522B CN 201810487352 A CN201810487352 A CN 201810487352A CN 108593522 B CN108593522 B CN 108593522B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 238000000746 purification Methods 0.000 title claims abstract description 42
- 238000002372 labelling Methods 0.000 title claims abstract description 23
- 230000003068 static effect Effects 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000003860 storage Methods 0.000 claims abstract description 28
- 239000007853 buffer solution Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims description 8
- 238000010790 dilution Methods 0.000 claims description 6
- 239000012895 dilution Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000006179 pH buffering agent Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 210000000476 body water Anatomy 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 18
- 231100000719 pollutant Toxicity 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010992 reflux Methods 0.000 abstract description 2
- 230000000295 complement effect Effects 0.000 abstract 1
- 239000011550 stock solution Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
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Abstract
The invention discloses an automatic on-line labeling water purification filter element test line and a labeling method, the automatic on-line labeling water purification filter element test line comprises a water purification filter element test line, a buffer solution input port, a water supply pipeline, a volumetric fixed ratio diluter, a motor, a water outlet, a liquid storage barrel, a stirring rotary vane, a first water pump, a pulse damper, an electromagnetic valve, a peristaltic pump, a second water pump, a quick joint, a sampling valve, a manual pipe resistance valve, an automatic sampler, a static mixer, a flowmeter, a static pressure pipe, a pressure gauge, a reflux valve, a first test line and a second test line are arranged on the water purification filter element test line, the multifunctional low-cost extensible pollutant removal rate test line can not only meet the working requirements of a higher test line, but also can use one type of water supply, simultaneously label a plurality of pollutants to realize complementary influence, can reduce the production cost of a water purification filter element, and can reduce the occupied space of a water purification device, can help the industrial standard and the international standard of the water purification filter element in China to quickly meet the rail.
Description
Technical Field
The invention relates to the technical field of automatic online labeling, in particular to an automatic online labeling water purification filter element test line and a labeling method.
Background
The pollutant removal index of the domestic water purification filter element is generally evaluated by adopting a pollutant point-plus-standard test method. Namely, after a specified amount of tap water is led into the filter element, a water sample with specified concentration of pollutants is prepared to pass through the filter element, and the pollutant removal capacity of the filter element at the point is tested. However, the method cannot accurately evaluate the actual performance of the filter element when the filter element works in a water sample containing pollutants. The U.S. NSF53 standard provides a test method for evaluating the contaminant removal capacity of a water purification cartridge. In the standard, an aqueous solution of a pollutant with a specified concentration is prepared in a mixing tank, and then the added standard water passes through a test unit through a pump, a pressure regulating valve, a flowmeter and other components. And was run at 50% time, 50% off time, with each session lasting 15-40 minutes, with the cycle being run every 24 hours for 16 hours. Then, the pressure-bearing stop operation was carried out for 8 hours. The method can better evaluate the performance of the water purifying filter element for removing the added standard substance in the water body polluted by the added standard substance. However, each test line corresponding to each storage tank can only work under the same water body with the standard substance, and if various pollutant removal experiments need to be carried out simultaneously, a new standard line needs to be used. For water purification filter element manufacturers in China, the scheme does not have practical operability, and even third-party inspection companies do not have the condition for equipping pollutant labeling test lines adopting the scheme or similar schemes. The scheme also has the defects of complex operation, high labor consumption in preparation of the standard-adding water and the like, and is difficult to be practically popularized by domestic water purification filter element manufacturers with shortage of manpower and financial resources.
Disclosure of Invention
The invention aims to provide an expandable test line for removing the pollutants, which can be used for supplying water, simultaneously adding a plurality of pollutants without influencing each other, reducing the production cost of a water purification filter element and reducing the occupied space of a device, and an automatic on-line adding test line for the water purification filter element and an adding method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic online water purification filter core test wire that marks, includes water purification filter core test wire, be equipped with volumetric type scaling diluter on the water purification filter core test wire, the right side below of volumetric type scaling diluter is equipped with the stock solution bucket, be equipped with the motor directly over the stock solution bucket, stock solution barrel head portion left side is equipped with the outlet, and the outside right side of stock solution bucket is equipped with first water pump, the top of first water pump is equipped with the connecting tube, and the upper end of connecting tube is equipped with the pulse damper, and the below right side that connecting tube and pulse damper are connected is equipped with the static pressure pipe, the right-hand member top of static pressure pipe is equipped with the pressure gauge, the below left end of static pressure pipe is equipped with first test wire, and the below right-hand member of static pressure pipe is equipped with the second test wire, the right-hand member of connecting tube is equipped.
Preferably, a water supply pipeline is arranged at the left end of the volumetric proportional diluter, and a buffer solution input port is arranged above the volumetric proportional diluter.
Preferably, a second water pump is arranged at the left lower end of the static pressure pipe, a connecting pipeline is arranged between the second water pump and the static pressure pipe, an electromagnetic valve is arranged at the joint of the connecting pipeline and the static pressure pipe, a peristaltic pump is arranged on the right side of the connecting pipeline between the second water pump and the static pressure pipe, an electromagnetic valve is arranged between the peristaltic pump and the connecting pipeline, a static mixer is arranged below the second water pump, a quick-connection joint is arranged below the static mixer, an electromagnetic valve is arranged between the quick-connection joint and the static mixer, a connecting pipeline is arranged below the quick-connection joint, a flow meter is arranged on the right side of the joint of the quick-connection joint and the connecting pipeline, an automatic sampler is arranged below the flow meter, a sampling valve, a manual pipe resistance valve and an electromagnetic valve are sequentially arranged below the connection joint of the automatic sampler and the connecting pipeline, and a second test.
Preferably, a stirring rotary vane is arranged below the rotating shaft of the motor.
Preferably, the dosing inlet of the adjustable volumetric dilution with fixed ratio is connected with a high-concentration pH buffer solution, the dilution ratio is determined by manual volumetric flask dilution, and the buffer solution group is determined in a way that the buffer solution group cannot react with the added standard substance, interfere with the added standard substance and influence the added standard substance.
Preferably, the liquid storage barrel pump is a centrifugal water pump controlled by a frequency converter pressure gauge pid in a feedback mode and operates in cooperation with a pulse damper.
Preferably, the flowmeter is an electromagnetic flowmeter, is connected with a pid controller with an AI function and a flowmeter calculator, and is connected with the PLC.
Preferably, the automatic on-line labeling water purification filter element test line comprises the following steps:
A. injecting a certain proportion of mixed water supply and a pH buffering agent or a certain proportion of background ion solution into the volumetric fixed-ratio diluter through a buffer solution input port and a water supply pipeline to a liquid storage barrel;
B. the stirring rotary vane in the liquid storage barrel is driven by a motor to stir the buffer solution and the clear water which are mixed according to the proportion;
C. a driver pump outside the liquid storage barrel is used for pumping the water into the static pressure pipe, the water flow speed of a main body in the static pressure pipe is not more than 0.2 m/s, and an adjusting valve at the tail end of the static pressure pipe is used for enabling the water to flow back to the liquid storage barrel, so that the pressure of the water pump controlled by pid feedback is convenient to stabilize, meanwhile, the temperature rise and the blockage of a pump port are prevented, and the water vortex at the tail end of the static; D. and sending the mixed liquid treated by the static pressure pipe into a first test line and a second test line for testing and labeling.
E. The automatic sampler on first test wire and the second test wire is PLC controlled disc-shaped multi-position sampler driven by absolute value encoder type closed-loop stepping motor, the hose is connected with the sampling valve, the end of the hose is connected with an executing element, and the automatic sampling is carried out when the accumulated flow reaches a set value, so that the unattended labeling test is realized.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a multifunctional low-cost extensible pollutant removal rate test line, which can meet the working requirement of a higher test line, can use one type of water supply, simultaneously mark various pollutants without mutual influence, can reduce the production cost of a water purification filter element, can reduce the occupied space of a device, and can help the industrial standard and the international standard of the water purification filter element in China to quickly meet the rail.
Drawings
Fig. 1 is a schematic structural view of a water purification filter element test line according to the present invention.
In the figure: 1. a water purification filter element test line; 2. a buffer input port; 3. a water supply pipeline; 4. a volumetric fixed-ratio diluter; 5. a motor; 6. a water outlet; 7. a liquid storage barrel; 8. stirring the rotary blade; 9. a first water pump; 10. a pulse damper; 11. an electromagnetic valve; 12. a peristaltic pump; 13. a second water pump; 14. a quick-connect joint; 15. a sampling valve; 16. a manual pipe resistance valve; 17. an automatic sampler; 18. a static mixer; 19. a flow meter; 20. a static pressure tube; 21. a pressure gauge; 22. a reflux valve; 23. a first test line; 24. and a second test line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides an automatic online water purification filter core test wire that marks, includes water purification filter core test wire 1, is equipped with volumetric type definite ratio diluter 4 on water purification filter core test wire 1, and adjustable volumetric type definite ratio diluter 4 adds the medicine entry and links into high concentration pH buffer solution, and the dilution ratio is diluted by manual volumetric flask and is confirmed, and buffer solution group is for must not being added the object and take place reaction, interference, influence survey.
The left end of the volumetric fixed-ratio diluter 4 is provided with a water supply pipeline 3, tap water provided by the water supply pipeline 3 can be deionized water or RO water, a buffer solution input port 2 is arranged above the volumetric fixed-ratio diluter 4, a liquid storage barrel 7 is arranged at the right lower part of the volumetric fixed-ratio diluter 4, the liquid storage barrel 7 is a centrifugal water pump controlled by a frequency converter pressure gauge pid feedback, the centrifugal water pump is matched with a pulse damper 10 to operate, the pulse damper 10 can maintain constant static pressure of a static pressure pipe under small pulse matching with the pulse damper 10, stable liquid supply pressure is provided for a marking line connected with each static pressure chamber, a motor 5 is arranged right above the liquid storage barrel 7, a stirring rotary vane 8 is arranged below a rotating shaft of the motor 5, the motor 5 drives the stirring rotary vane 8 to uniformly stir the buffer solution and clean water, a water outlet 6 is arranged at the left side of the bottom of the liquid storage barrel 7, a first water pump 9 is arranged at the, the top of first water pump 9 is equipped with the connecting tube, and the upper end of connecting tube is equipped with pulse damper 10, and when stock solution bucket water level was low, the water supply was opened, and automatic water supply, the water level supplied water to the automatic disconnection when high-order, and the mixed diluter of definite ratio can need not the operation, only need let by dilute solution keep supplying with constantly can.
The right side of the lower part of the connecting pipeline connected with the pulse damper 10 is provided with a static pressure pipe 20, the tail end of the static pressure pipe 20 is provided with a regulating valve for returning water to a liquid storage barrel, so that the pressure of a water pump controlled by pid feedback is stabilized, temperature rise and pump port blockage are prevented, the effect of eliminating water vortex at the tail end of the static pressure pipe is achieved, the stability and reliability of the system are ensured, a pressure gauge 21 is arranged above the right end of the static pressure pipe 20, the left end of the lower part of the static pressure pipe 20 is provided with a first test line 23, the right end of the lower part of the static pressure pipe 20 is provided with a second test line 24, the right end of the static pressure pipe 20 is provided with a return pipe, a return valve 22 is arranged at the joint of the return pipe and the static pressure pipe 20, the water flow rate of a main body in the static pressure pipe 20 is not more than 0..
A second water pump 13 is arranged at the left lower end of the static pressure pipe 20, a connecting pipeline is arranged between the second water pump 13 and the static pressure pipe 20, an electromagnetic valve 11 is arranged at the joint of the connecting pipeline and the static pressure pipe 20, a peristaltic pump 12 is arranged on the right side of the connecting pipeline between the second water pump 13 and the static pressure pipe 20, the electromagnetic valve 11 is arranged between the peristaltic pump 12 and the connecting pipeline, a static mixer 18 is arranged below the second water pump 13, a quick-connection joint 14 is arranged below the static mixer 18, the electromagnetic valve 11 is arranged between the quick-connection joint 14 and the static mixer 18, the connecting pipeline is arranged below the quick-connection joint 14, a flow meter 19 is arranged on the right side of the joint of the quick-connection joint 14 and the connecting pipeline, the flow meter 19 is an electromagnetic flow meter, the flow meter 19 is connected with a pid controller with an AI function and a flow meter calculator, the flow meter is connected with, an automatic sampler 17 is arranged below the flowmeter 19, a sampling valve 15, a manual pipe resistance valve 16 and an electromagnetic valve 11 are sequentially arranged below the automatic sampler 17 and the connecting joint of the connecting pipeline, and a second testing line 24 is completely the same as the first testing line 23.
Because the inlet pressure of the booster pump with the marking line is basically the same as the static pressure type and is almost kept constant, the peristaltic pump connected with the inlet of the booster pump can work under the condition that the outlet pressure is constant, the precision is higher, the static pressure type outlet can be kept at about 0.08-0.1MPa by adjusting the setting parameters of the constant pressure pump at the outlet of the liquid storage barrel, and the peristaltic pump works smoothly and marks.
The invention provides a multifunctional low-cost extensible pollutant removal rate test line, which can meet the working requirement of a higher test line, can use one type of water supply, simultaneously mark various pollutants without mutual influence, can reduce the production cost of a water purification filter element, can reduce the occupied space of a device, and can help the industrial standard and the international standard of the water purification filter element in China to quickly meet the rail.
An automatic on-line labeling water purification filter element test line comprises the following steps:
A. injecting a certain proportion of mixed water supply and a pH buffering agent or a certain proportion of background ion solution into a liquid storage barrel 7 from a buffer solution input port 2 and a water supply pipeline 3 to a volumetric fixed-ratio diluter 4;
B. a stirring rotary vane 8 in the liquid storage barrel 7 is driven by a motor 5 to stir the buffer solution and the clear water which are mixed according to the proportion;
C. a driver pump outside the liquid storage barrel 7 is used for pumping into the static pressure pipe 20, the flow speed of main body water in the static pressure pipe 20 is not more than 0.2 m/s, and an adjusting valve at the tail end of the static pressure pipe 20 is used for enabling the water to flow back to the liquid storage barrel, so that the pressure of the water pump controlled by pid feedback is convenient to stabilize, meanwhile, the temperature rise and the pump port blockage are prevented, and the water vortex at the tail end of the static pressure pipe 20 is eliminated;
D. the mixed liquid treated by the static pressure pipe 20 is sent to a first test line 23 and a second test line 24 for test and labeling;
E. the automatic sampler 17 on the first test line 23 and the second test line 24 is a disc-shaped multi-position sampler driven by a PLC (programmable logic controller) controlled absolute value encoder type closed-loop stepping motor, a hose is connected to a sampling valve, and the tail end of the hose is connected with an execution element.
The invention has the beneficial effects that:
the invention provides a multifunctional low-cost extensible pollutant removal rate test line, which can meet the working requirement of a higher test line, can use one type of water supply, simultaneously mark various pollutants without mutual influence, can reduce the production cost of a water purification filter element, can reduce the occupied space of a device, and can help the industrial standard and the international standard of the water purification filter element in China to quickly meet the rail.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an automatic on-line mark water purification filter core test wire, includes water purification filter core test wire (1), its characterized in that: the water purification filter element test line (1) is provided with a volumetric fixed-ratio diluter (4), a liquid storage barrel (7) is arranged at the lower right part of the volumetric fixed-ratio diluter (4), a motor (5) is arranged right above the liquid storage barrel (7), a water outlet (6) is arranged at the left side of the bottom of the liquid storage barrel (7), a first water pump (9) is arranged at the right side of the outside of the liquid storage barrel (7), a connecting pipeline is arranged above the first water pump (9), a pulse damper (10) is arranged at the upper end of the connecting pipeline, a static pressure pipe (20) is arranged at the right side of the lower part of the connecting pipeline, which is connected with the pulse damper (10), a pressure gauge (21) is arranged above the right end of the static pressure pipe (20), a first test line (23) is arranged at the left end of the lower part of the static pressure pipe (20), a second test line (24) is arranged at the lower part of the static pressure pipe, a return valve (22) is arranged at the joint of the return pipe and the static pressure pipe (20).
2. The automatic online labeling water purification filter element test line according to claim 1, characterized in that: the left end of the volumetric proportional diluter (4) is provided with a water supply pipeline (3), and a buffer solution input port (2) is arranged above the volumetric proportional diluter (4).
3. The automatic online labeling water purification filter element test line according to claim 1, characterized in that: the left end below the static pressure pipe (20) is provided with a first test line which is specifically set as follows: a second water pump (13) is arranged at the left lower end of the static pressure pipe (20), a connecting pipeline is arranged between the second water pump (13) and the static pressure pipe (20), an electromagnetic valve (11) is arranged at the joint of the connecting pipeline and the static pressure pipe (20), a peristaltic pump (12) is arranged on the right side of the connecting pipeline between the second water pump (13) and the static pressure pipe (20), the electromagnetic valve (11) is arranged between the peristaltic pump (12) and the connecting pipeline, a static mixer (18) is arranged below the second water pump (13), a quick-connection joint (14) is arranged below the static mixer (18), the electromagnetic valve (11) is arranged between the quick-connection joint (14) and the static mixer (18), a connecting pipeline is arranged below the quick-connection joint (14), a flow meter (19) is arranged on the right side of the quick-connection joint (14) and the connecting pipeline, and an automatic sampler (17) is arranged below the flow meter (19, a sampling valve (15), a manual pipe resistance valve (16) and an electromagnetic valve (11) are sequentially arranged below the automatic sampler (17) and the connecting joint of the connecting pipeline;
the second test line (24) is identical to the first test line (23).
4. The automatic online labeling water purification filter element test line according to claim 1, characterized in that: and a stirring rotary vane (8) is arranged below the rotating shaft of the motor (5).
5. The automatic online labeling water purification filter element test line according to claim 1, characterized in that: the dosing inlet of the volumetric fixed-ratio diluter (4) is connected with a high-concentration pH buffer solution, the dilution ratio is determined by manual volumetric flask dilution, and the buffer solution group cannot react with the added standard substance, interfere with the added standard substance and influence the measurement.
6. The automatic online labeling water purification filter element test line according to claim 1, characterized in that: the first water pump (9) on the right side of the outside of the liquid storage barrel (7) is a centrifugal water pump controlled by feedback of a frequency converter pressure gauge pid and operates in cooperation with a pulse damper (10).
7. The automatic online labeling water purification filter element test line according to claim 3, characterized in that: the flowmeter (19) is an electromagnetic flowmeter, the flowmeter (19) is connected with a pid controller with an AI function and a flowmeter calculator, and the flowmeter is connected with a PLC.
8. The marking method for realizing the automatic on-line marking of the test line of the water purification filter element in claim 2 comprises the following steps:
A. injecting water and a pH buffering agent in a certain proportion or adding a background ion solution in a certain proportion into a liquid storage barrel (7) to a volumetric fixed-ratio diluter (4) through a buffer solution input port (2) and a water supply pipeline (3);
B. a stirring rotary vane (8) in the liquid storage barrel (7) is driven by a motor (5) to stir the buffer solution and the clear water which are mixed according to the proportion;
C. the liquid in the liquid storage barrel (7) is sent into the static pressure pipe (20) by utilizing the first water pump (9) on the outer side of the liquid storage barrel (7), the flow speed of main body water in the static pressure pipe (20) is not more than 0.2 m/s, and the regulating valve at the tail end of the static pressure pipe (20) is used for enabling the water to flow back to the liquid storage barrel, so that the pressure of the water pump controlled by pid feedback is convenient to be stable, meanwhile, the temperature rise and the blockage of a pump opening are prevented, and the water vortex at the tail end of the static pressure; D. the mixed liquid treated by the static pressure pipe (20) is sent to a first test line (23) and a second test line (24) for test and labeling;
E. the automatic sampler (17) on the first test line (23) and the second test line (24) is a disc-shaped multi-position sampler driven by a PLC (programmable logic controller) controlled absolute value encoder type closed-loop stepping motor, a hose is connected to a sampling valve, and the tail end of the hose is connected with an executing element.
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| CN201810487352.2A CN108593522B (en) | 2018-05-21 | 2018-05-21 | Automatic online labeling water purification filter element test line and labeling method |
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| CN109917094A (en) * | 2019-03-14 | 2019-06-21 | 深圳安吉尔饮水产业集团有限公司 | Multifunctional labeling test system |
| CN110296923B (en) * | 2019-06-20 | 2021-11-02 | 山东省水利勘测设计院 | Hydraulic engineering seepage monitoring system and method |
| CN114112461B (en) * | 2021-11-09 | 2024-01-30 | 中科检测技术服务(广州)股份有限公司 | Virus removal testing device and method for water purifier |
| CN114324112A (en) * | 2021-12-29 | 2022-04-12 | 昆山矽崴环保设备有限公司 | Method for testing purifying effect of drinking water filter element |
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| CN106644544A (en) * | 2016-12-27 | 2017-05-10 | 中认英泰检测技术有限公司 | Device for measuring water purification efficiency of reverse osmosis water purifier |
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| CN108593522A (en) | 2018-09-28 |
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Address after: 226002 No.9, Tongliu Road, Nantong City, Jiangsu Province Patentee after: Jiangsu Meiya Keze Filtration Technology Co.,Ltd. Address before: 226002 No.9, Tongliu Road, Nantong City, Jiangsu Province Patentee before: AMERIASIA ACTIVATED CARBON PRODUCTS Co.,Ltd. |