CN109490170B - Filter testing system - Google Patents
Filter testing system Download PDFInfo
- Publication number
- CN109490170B CN109490170B CN201811523217.5A CN201811523217A CN109490170B CN 109490170 B CN109490170 B CN 109490170B CN 201811523217 A CN201811523217 A CN 201811523217A CN 109490170 B CN109490170 B CN 109490170B
- Authority
- CN
- China
- Prior art keywords
- liquid
- branch
- pressure
- test
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 121
- 239000007788 liquid Substances 0.000 claims abstract description 120
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000012535 impurity Substances 0.000 claims abstract description 46
- 238000003756 stirring Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 13
- 238000000746 purification Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Classifications
-
- 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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a filter testing system which comprises a liquid storage device, a liquid supply device, a testing branch, a comparison branch, a first flowmeter, a second flowmeter, a first screen and a second screen, wherein an inlet of the liquid supply device is communicated with the liquid storage device, and an outlet of the liquid supply device is communicated with the testing branch and the comparison branch; the first flowmeter and the first screen are sequentially arranged in the test branch along the flow direction of the liquid in the test branch, and the second flowmeter and the second screen are sequentially arranged in the comparison branch along the flow direction of the liquid in the comparison branch; in the retention rate test, the retention rate of the tested filter can be calculated according to the flow value detected by the first flow meter, the flow value detected by the second flow meter, the impurities collected by the first screen and the impurities collected by the second screen; in the water purification rate test, the liquid supply device supplies water to the test branch, and the flow flowing through the test branch is detected through the first flowmeter to obtain the water purification flow.
Description
Technical Field
The invention relates to the technical field of filter testing, in particular to a filter testing system.
Background
The pre-filter is a first filtering 'line of defense' for household healthy drinking water, and can play a role in removing or intercepting precipitated impurities, bacteria, microorganism remains, rust, sediment and other impurities in the pipeline. A filter with good filtering performance has good water flow performance besides good filtering performance.
The filters with different filtering precision have different impurity filtering capacities and different water purifying flow capacities, so that the blocking or interception capacity of the pre-filter to impurity particles is generally measured through a 'interception rate' index, the water permeability of the pre-filter is measured through a 'water purifying flow rate' index, and the two indexes are also used as important basis for considering the filtering performance of the pre-filter. However, most of the current filter test systems only have a single test function, so that it is difficult to obtain two data indexes of the filter at the same time.
Disclosure of Invention
Based on the above, the invention aims to overcome the defects of the prior art and provide a filter testing system for detecting two indexes of the water purification rate and the retention rate.
The filter testing system comprises a liquid reservoir, a liquid feeder, a testing branch, a comparison branch, a first flowmeter, a second flowmeter, a first screen and a second screen, wherein an inlet of the liquid feeder is communicated with the liquid reservoir, and an outlet of the liquid feeder is communicated with the testing branch and the comparison branch; the liquid reservoir is used for containing liquid containing impurities, the first flowmeter and the first screen mesh are sequentially arranged in the test branch along the flow direction of the liquid in the test branch, the second flowmeter and the second screen mesh are sequentially arranged in the comparison branch along the flow direction of the liquid in the comparison branch, and the tested branch is used for installing a tested filter and the tested filter is positioned between the first flowmeter and the first screen mesh.
In the filter test system, in the retention rate test, the liquid reservoir contains the liquid containing impurities, the liquid feeder conveys the liquid in the liquid reservoir to the test branch and the comparison branch, the liquid filtered by the tested filter in the test branch flows to the first screen, and the first screen collects the impurities in the test branch; impurities in the comparison branch paths flow to the second screen, the second screen collects the impurities in the comparison branch paths, and the impurities in the first screen and the second screen are poor in quality due to the fact that liquid flowing to the first screen is filtered by the tested filter; and calculating the retention rate of the tested filter according to the flow value detected by the first flow meter, the flow value detected by the second flow meter, the impurities collected by the first screen and the impurities collected by the second screen. In the water purification rate test, the liquid supply device supplies water to the test branch, and the flow flowing through the test branch is detected through the first flowmeter to obtain the water purification flow. Therefore, the filter testing system can simultaneously acquire the purified water flow and the throttling rate, and conveniently realizes the performance test of the tested filter.
In one embodiment, the liquid reservoir is provided with a stirring mechanism for stirring the liquid in the liquid reservoir to suspend the impurities in the liquid. In the retention rate test, the impurity is suspended in the liquid by driving the stirring mechanism, and when the liquid feeder conveys the liquid to the test branch and the comparison branch, the impurity suspended in the liquid can flow to the test branch and the comparison branch along with the liquid, so that the impurity can be prevented from depositing in the liquid, and the impurity is ensured to flow to the test branch and the comparison branch along with the liquid.
In one embodiment, the filter testing system further comprises a driver for driving the agitation mechanism to continuously agitate the liquid. Compared with manual stirring of the liquid, the mode of stirring the liquid by adopting the driver can reduce the labor intensity of operators; meanwhile, in the test, the driver drives the stirring mechanism to continuously stir the liquid, so that suspended impurities can be prevented from depositing, and the impurities can be distributed more uniformly in the liquid in a mode that the driver drives the stirring mechanism to continuously stir the liquid, so that the distribution situation of the impurities in the liquid in a household use scene can be better simulated.
In one embodiment, the reservoir is provided with a water inlet for switching on a water source. In use, the water source can continuously convey water into the liquid storage device through the water inlet, so that the capacity requirement on the liquid storage device can be reduced, and the space occupation rate of the liquid storage device is further reduced.
In one embodiment, the filter testing system further comprises a third flow meter connected to the water inlet for metering flow into the reservoir. In use, the liquid storage amount in the liquid storage device can be obtained by comparing the measurement value of the first flowmeter, the measurement value of the second flowmeter and the measurement value of the third flowmeter, so that the liquid storage amount in the liquid storage device can be conveniently controlled, and the time for supplementing liquid into the liquid storage device can be conveniently controlled.
In one embodiment, the liquid feeder is a regulated water feeder, the regulated water feeder comprises a variable frequency pump, a first pressure sensor and a controller which are electrically connected, an inlet of the variable frequency pump is communicated with the liquid storage device, an outlet of the variable frequency pump is communicated with the test branch and the comparison branch, the first pressure sensor is used for detecting the pressure of an outlet side of the variable frequency pump, and the controller controls the water supply amount of the variable frequency pump according to the detected pressure of the first pressure sensor. In use, when the pressure value detected by the first pressure sensor is larger than a preset value, the controller controls the variable frequency pump to reduce the pressure in the test branch in a mode of reducing the rotating speed; when the pressure value detected by the first pressure sensor is smaller than a preset value, the controller controls the variable frequency pump to increase the pressure in the test loop in a mode of increasing the rotating speed. And then can realize carrying out the test of water purification flow and retention rate in the relatively stable pressure range, and then guarantee the accuracy of the test result of water purification flow and retention rate.
In one embodiment, the pressure-stabilizing water supply device further comprises a pressure stabilizer, wherein an inlet of the pressure stabilizer is communicated with an outlet of the variable frequency pump, and an outlet of the pressure stabilizer is communicated with the test branch and the comparison branch; the first pressure sensor is used for detecting the pressure of the outlet side of the pressure stabilizer. In the test, the water delivery pressure at the outlet side of the variable frequency pump may have abrupt change, when the water delivery pressure abruptly increases, the pressure stabilizer can weaken the pressure abrupt change in a pressure absorption mode, and when the water delivery pressure abrupt change decreases, the pressure stabilizer can weaken the pressure abrupt change in a pressure compensation mode; therefore, the influence of the variable frequency pump on the water delivery pressure can be reduced. Meanwhile, as the first pressure sensor is used for detecting the pressure at the outlet side of the voltage stabilizer, the frequency of the variable frequency pump regulated and controlled by the controller can be reduced, and the stability of regulation and control is improved.
In one embodiment, the filter testing system further comprises a first throttle valve coupled to the comparison branch to control the flow rate of the liquid in the comparison branch. In use, the first throttle valve is adjusted to reduce the flow rate of the liquid in the comparison branch, so that the flow distribution of the test branch and the comparison branch is relatively uniform.
In one embodiment, the filter testing system further comprises a second pressure sensor for detecting the pressure on the outlet side of the first throttle valve and a third pressure sensor for detecting the pressure on the inlet side of the filter under test. In use, the first throttle valve is regulated and controlled to enable the detection value of the second pressure sensor to be similar to the detection value of the third pressure sensor, so that the degree of uniform flow distribution of the test branch and the comparison branch can be improved; the method for adjusting the detection value of the second pressure sensor and the detection value of the third pressure sensor by taking the detection values as references is simple and convenient to adjust.
In one embodiment, the filter testing system further comprises a second throttle valve coupled to the test branch to control the flow rate of the liquid in the test branch. And the flow rate in the test branch is regulated through the second throttle valve, and the test branch is conveniently closed by using the second throttle valve under the condition that the test is stopped.
Drawings
FIG. 1 is a hydraulic circuit diagram of a filter testing system according to one embodiment;
FIG. 2 is a schematic diagram of a filter testing system according to an embodiment;
FIG. 3 is a control schematic of a filter testing system according to an embodiment.
Reference numerals illustrate:
100. Reservoir, 101, water inlet, 110, rabbling mechanism, 120, driver, 200, liquid feeder, 201, steady voltage water feeder, 210, variable frequency pump, 220, first pressure sensor, 230, controller, 240, steady voltage ware, 310, test branch, 311, third pressure sensor, 312, second choke valve, 320, contrast branch, 321, first choke valve, 322, second pressure sensor, 410, first screen, 420, second screen, 510, first flowmeter, 520, second flowmeter, 530, third flowmeter, 600, filter under test.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, in one embodiment, a filter testing system is provided, including a reservoir 100, a liquid supplier 200, a testing branch 310, a comparing branch 320, a first flowmeter 510, a second flowmeter 520, a first screen 410, and a second screen 420, wherein an inlet of the liquid supplier 200 is in communication with the reservoir 100, and an outlet of the liquid supplier 200 is in communication with the testing branch 310 and the comparing branch 320; the liquid storage device 100 is configured to hold a liquid containing impurities, the first flowmeter 510 and the first screen 410 are sequentially disposed in the test branch 310 along a flow direction of the liquid in the test branch 310, the second flowmeter 520 and the second screen 420 are sequentially disposed in the comparison branch 320 along a flow direction of the liquid in the comparison branch 320, and the tested branch 310 is configured to mount the tested filter 600 and the tested filter 600 is located between the first flowmeter and the first screen 410.
In the above filter test system, in the retention rate test, the liquid reservoir 100 contains the liquid containing the impurities, the liquid supplier 200 conveys the liquid in the liquid reservoir 100 to the test branch 310 and the comparison branch 320, the impurities in the test branch 310 flow to the first screen 410, and the first screen 410 collects the impurities in the test branch 310; the impurities in the comparison branch 320 flow to the second screen 420, and the second screen 420 collects the impurities in the comparison branch 320. As the liquid flowing to the first screen 410 is filtered through the tested filter 600, impurities of the first screen 410 and the second screen 420 have poor quality; the rejection rate of the filter 600 under test can be calculated from the flow rate value detected by the first flow meter 510, the flow rate value detected by the second flow meter 520, the impurities collected by the first screen 410, and the impurities collected by the second screen 420. In the water purification rate test, the water supplier 200 supplies water to the test branch 310, and the flow rate flowing through the test branch 310 is detected by the first flow meter 510 to obtain a purified water flow rate. The filter test system can simultaneously acquire the purified water flow and the throttling rate, and conveniently realizes the performance test of the tested filter 600.
When there is a difference between the flow rate detected by the first flow meter 510 and the flow rate detected by the second flow meter 520, the impurity collected by the first screen 410 per unit flow rate is calculated by combining the flow rate detected by the first flow meter 510 and the impurity collected by the first screen 410; and (3) calculating the impurity collected by the second screen 420 under the unit flow rate by combining the flow rate detected by the second flowmeter 520 and the impurity collected by the second screen 420, and finally calculating the retention rate according to the mass of the collected impurity under the two unit flow rates.
In one embodiment, the liquid reservoir 100 is provided with a stirring mechanism 110, and the stirring mechanism 110 is used for stirring the liquid in the liquid reservoir 100 to suspend the impurities in the liquid. In the retention rate test, the stirring mechanism 110 is driven to suspend the impurities in the liquid, and when the liquid supplier 200 conveys the liquid to the test branch 310 and the comparison branch 320, the impurities suspended in the liquid can flow to the test branch 310 and the comparison branch 320 along with the liquid, so that the impurities can be prevented from depositing in the liquid, and the impurities can flow to the test branch 310 and the comparison branch 320 along with the liquid.
In one embodiment, the filter testing system further comprises a driver 120, and the driver 120 is used for driving the stirring mechanism 110 to continuously stir the liquid. Compared with manual stirring of the liquid, the mode of stirring the liquid by the driver 120 can reduce the labor intensity of operators; meanwhile, in the test, the driver 120 drives the stirring mechanism 110 to continuously stir the liquid, so that suspended impurities can be prevented from being deposited, and the impurity can be distributed more uniformly in the liquid in a mode that the driver 120 drives the stirring mechanism 110 to continuously stir the liquid, so that the distribution situation of the impurity in the liquid in a household use scene can be better simulated.
Specifically, in this embodiment, the driver 120 is a motor, and the motor drives the stirring mechanism 110 to rotate to stir the liquid.
In one embodiment, the liquid storage 100 is provided with a water inlet 101, and the water inlet 101 is used for connecting a water source. In use, water source can continuously deliver water to the liquid storage device 100 through the water inlet 101, so that the capacity requirement on the liquid storage device 100 can be reduced, and the space occupation rate of the liquid storage device 100 is further reduced.
In one embodiment, the filter testing system further comprises a third flowmeter 530 coupled to the water inlet 101, wherein the third flowmeter 530 is configured to meter the flow into the reservoir 100. In use, the liquid storage amount in the liquid storage device 100 can be obtained by comparing the measurement values of the first flow meter 510, the second flow meter 520 and the third flow meter 530, so that the liquid storage amount in the liquid storage device 100 can be conveniently controlled, and the timing of liquid supplementing into the liquid storage device 100 can be conveniently controlled.
In an embodiment, the liquid supply device 200 is a regulated water supply device 201, the regulated water supply device 201 includes a variable frequency pump 210, a first pressure sensor 220 and a controller 230 that are electrically connected, an inlet of the variable frequency pump 210 is communicated with the liquid storage device 100, an outlet of the variable frequency pump 210 is communicated with the test branch 310 and the comparison branch 320, the first pressure sensor 220 is used for detecting pressure at an outlet side of the variable frequency pump 210, and the controller 230 controls water supply amount of the variable frequency pump 210 according to the detected pressure of the first pressure sensor 220. In use, when the pressure value detected by the first pressure sensor 220 is greater than the preset value, the controller 230 controls the variable frequency pump 210 to reduce the pressure in the test branch 310 in a manner of reducing the rotation speed; when the pressure value detected by the first pressure sensor 220 is less than the preset value, the controller 230 controls the variable frequency pump 210 to increase the pressure in the test circuit in a manner of increasing the rotation speed. And then can realize carrying out the test of water purification flow and retention rate in the relatively stable pressure range, and then guarantee the accuracy of the test result of water purification flow and retention rate.
In one embodiment, the regulated water supply 201 further includes a regulator 240, wherein an inlet of the regulator 240 is connected to an outlet of the variable frequency pump 210, and an outlet of the regulator 240 is connected to the test branch 310 and the comparison branch 320; the first pressure sensor 220 is used to detect the pressure at the outlet side of the pressure regulator 240. In the test, the water delivery pressure at the outlet side of the variable frequency pump 210 may have a sudden change, when the water delivery pressure suddenly increases, the pressure stabilizer 240 can weaken the sudden change in pressure by absorbing the pressure, and when the water delivery pressure suddenly decreases, the pressure stabilizer 240 can weaken the sudden change in pressure by compensating the pressure; this reduces the effect of variable frequency pump 210 on the water delivery pressure. Meanwhile, since the first pressure sensor 220 is used for detecting the pressure at the outlet side of the pressure stabilizer 240, the frequency of the variable frequency pump 210 regulated by the controller 230 can be reduced, and the stability of regulation can be improved.
Specifically, in this embodiment, the voltage stabilizer 240 is a surge tank with a film.
In one embodiment, the filter testing system further comprises a first throttle valve 321, and the first throttle valve 321 is connected to the comparison branch 320 to control the flow rate of the liquid in the comparison branch 320. In use, the first throttle 321 is adjusted to reduce the flow rate of the fluid in the comparison branch 320, so that the flow distribution in the test branch 310 and the comparison branch 320 is reduced to be relatively uniform.
In one embodiment, the filter testing system further includes a second pressure sensor 322 and a third pressure sensor 311, wherein the second pressure sensor 322 is used for detecting the pressure on the outlet side of the first throttle 321, and the third pressure sensor 311 is used for detecting the pressure on the inlet side of the tested filter 600. In use, the first throttle 321 is regulated and controlled to enable the detection value of the second pressure sensor 322 to be similar to the detection value of the third pressure sensor 311, so that the degree of uniform flow distribution of the test branch 310 and the comparison branch 320 can be improved; the method of adjusting the detection value of the second pressure sensor 322 and the detection value of the third pressure sensor 311 by taking the detection values as references is simple and convenient.
In one embodiment, the filter testing system further comprises a second throttle valve 312, wherein the second throttle valve 312 is connected to the testing branch 310 to control the flow rate of the liquid in the testing branch 310. The flow rate in the test branch 310 is regulated by the second throttle 312, which also facilitates closing the test branch 310 with the second throttle 312 in case of a test stop.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The filter testing system is characterized by comprising a liquid reservoir, a liquid feeder, a testing branch, a comparison branch, a first flowmeter, a second flowmeter, a first screen and a second screen, wherein an inlet of the liquid feeder is communicated with the liquid reservoir, and an outlet of the liquid feeder is communicated with the testing branch and the comparison branch; the liquid storage device is used for containing liquid containing impurities, the first flowmeter and the first screen are sequentially arranged in the test branch along the flow direction of the liquid in the test branch, the second flowmeter and the second screen are sequentially arranged in the comparison branch along the flow direction of the liquid in the comparison branch, and the test branch is used for installing a tested filter and the tested filter is positioned between the first flowmeter and the first screen; the liquid supply device is a pressure-stabilizing water supply device, the pressure-stabilizing water supply device comprises a variable frequency pump, a first pressure sensor and a controller which are electrically connected, an inlet of the variable frequency pump is communicated with the liquid storage device, an outlet of the variable frequency pump is communicated with the test branch and the comparison branch, the first pressure sensor is used for detecting the pressure of the outlet side of the variable frequency pump, and the controller is used for controlling the water supply amount of the variable frequency pump according to the detected pressure of the first pressure sensor; when the pressure value detected by the first pressure sensor is larger than a preset value, the controller controls the variable frequency pump to reduce the rotating speed so as to reduce the pressure in the test branch; when the pressure value detected by the first pressure sensor is smaller than the preset value, the controller controls the variable frequency pump to increase the rotating speed so as to increase the pressure in the test branch.
2. The filter testing system of claim 1, wherein a stirring mechanism is provided in the reservoir for stirring the liquid in the reservoir to suspend impurities in the liquid.
3. The filter testing system of claim 2, further comprising a driver for driving the agitation mechanism to continuously agitate the liquid.
4. The filter testing system of claim 1, wherein the reservoir is provided with a water inlet for connection to a water source.
5. The filter testing system of claim 4, further comprising a third flow meter connected at the water inlet for metering flow into the reservoir.
6. The filter testing system of claim 1, wherein the regulated water supply further comprises a regulator, an inlet of the regulator being in communication with an outlet of the variable frequency pump, an outlet of the regulator being in communication with an outlet of the test branch and the comparison branch; the first pressure sensor is used for detecting the pressure of the outlet side of the pressure stabilizer.
7. The filter testing system of claim 6, wherein the pressurizer is a membrane surge tank.
8. The filter testing system of claim 1, further comprising a first throttle valve coupled to the comparison branch to control a flow rate of the liquid in the comparison branch.
9. The filter testing system of claim 8, further comprising a second pressure sensor for detecting pressure on the outlet side of the first throttle valve and a third pressure sensor for detecting pressure on the inlet side of the filter under test.
10. The filter testing system of claim 8, further comprising a second throttle valve coupled to the test branch to control the flow rate of the liquid in the test branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523217.5A CN109490170B (en) | 2018-12-12 | 2018-12-12 | Filter testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523217.5A CN109490170B (en) | 2018-12-12 | 2018-12-12 | Filter testing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109490170A CN109490170A (en) | 2019-03-19 |
| CN109490170B true CN109490170B (en) | 2024-05-31 |
Family
ID=65710104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811523217.5A Active CN109490170B (en) | 2018-12-12 | 2018-12-12 | Filter testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109490170B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640035A (en) * | 2021-09-13 | 2021-11-12 | 中国标准化研究院 | A water purifier testing method and system |
| CN118169004A (en) * | 2024-03-14 | 2024-06-11 | 绍兴淼汇能源科技有限公司 | Detection method of filter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702597A (en) * | 1994-07-26 | 1997-12-30 | Hospal Industrie | Device for preparing a treatment liquid by filtration |
| CN104236942A (en) * | 2014-09-03 | 2014-12-24 | 中科华核电技术研究院有限公司 | Filter performance detection method, device and system |
| CN104502131A (en) * | 2014-12-15 | 2015-04-08 | 安徽江淮汽车股份有限公司 | Performance testing system for suction filter of speed changing box |
| CN204429113U (en) * | 2014-12-04 | 2015-07-01 | 南京工业大学 | Membrane filtration performance testing device |
| JP2017037007A (en) * | 2015-08-11 | 2017-02-16 | 東海染工株式会社 | Filtration device |
| CN206192603U (en) * | 2016-11-30 | 2017-05-24 | 东风模具冲压技术有限公司 | But fast and stable detection air pressure's gas tightness detection device |
| CN108362832A (en) * | 2018-01-29 | 2018-08-03 | 桑德生态科技有限公司 | The device for evaluating performance and method of low pressure nanofiltration membrane component |
| KR20180131907A (en) * | 2017-06-01 | 2018-12-11 | 한국원자력연구원 | Inspecting installation for screen quality of ion exchanger |
| CN209356366U (en) * | 2018-12-12 | 2019-09-06 | 日丰企业（佛山）有限公司 | Filter test system |
-
2018
- 2018-12-12 CN CN201811523217.5A patent/CN109490170B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702597A (en) * | 1994-07-26 | 1997-12-30 | Hospal Industrie | Device for preparing a treatment liquid by filtration |
| CN104236942A (en) * | 2014-09-03 | 2014-12-24 | 中科华核电技术研究院有限公司 | Filter performance detection method, device and system |
| CN204429113U (en) * | 2014-12-04 | 2015-07-01 | 南京工业大学 | Membrane filtration performance testing device |
| CN104502131A (en) * | 2014-12-15 | 2015-04-08 | 安徽江淮汽车股份有限公司 | Performance testing system for suction filter of speed changing box |
| JP2017037007A (en) * | 2015-08-11 | 2017-02-16 | 東海染工株式会社 | Filtration device |
| CN206192603U (en) * | 2016-11-30 | 2017-05-24 | 东风模具冲压技术有限公司 | But fast and stable detection air pressure's gas tightness detection device |
| KR20180131907A (en) * | 2017-06-01 | 2018-12-11 | 한국원자력연구원 | Inspecting installation for screen quality of ion exchanger |
| CN108362832A (en) * | 2018-01-29 | 2018-08-03 | 桑德生态科技有限公司 | The device for evaluating performance and method of low pressure nanofiltration membrane component |
| CN209356366U (en) * | 2018-12-12 | 2019-09-06 | 日丰企业（佛山）有限公司 | Filter test system |
Non-Patent Citations (1)
| Title |
|---|
| 贾瑞清.《液压过滤技术及抗磨理论》.中国矿业大学出版社,2000,105-112. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109490170A (en) | 2019-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109490170B (en) | Filter testing system | |
| CN104556457B (en) | Water cleaning systems | |
| JP5460938B2 (en) | Water purification system that senses and controls distribution | |
| CN1656027A (en) | Water filter assembly | |
| US7578416B2 (en) | Water purification apparatus | |
| CN116040703B (en) | Water purifier and water purifier control method | |
| CN106706371A (en) | Water quality detection and sampling system | |
| CA1040454A (en) | Method of and apparatus for quantitative analysis | |
| CN104847958A (en) | Constant-current constant-temperature water mixing valve | |
| KR101936747B1 (en) | Water purifying apparatus and flow rate control method thereof | |
| CN209356366U (en) | Filter test system | |
| CN110873092A (en) | Electromagnetic reversing valve life reliability test hydraulic system | |
| CN204717124U (en) | A kind of constant-current constant-temperatureself-injection mixes water valve | |
| CN207957850U (en) | A kind of anti-raised water purifier of TDS values | |
| CN206911148U (en) | A kind of solid particulate matter dilution system | |
| CN115490345B (en) | Control method for water purifier and water purifier | |
| CN105169947B (en) | The method of the separative element of separative element and control with ro components | |
| CN212532319U (en) | External intelligent water quality blending system | |
| CN213253876U (en) | Device capable of stably adjusting and blending TDS value water | |
| KR101356764B1 (en) | Apparatus and method for measuring inner volume of tested sturcture using fluid | |
| CN210845397U (en) | Sand filtration backwashing system for sewage treatment | |
| JP2002540519A (en) | Fluid flow control method and apparatus for filtration system | |
| RU2431130C1 (en) | Method of determining content of contaminants in liquid flowing in pipeline | |
| CN217547234U (en) | Tobacco water adding device | |
| CN220845656U (en) | Waterway system capable of adjusting TDS value of discharged water and water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |