CN105561672A - Method and device for detecting service life of purified water filter element - Google Patents
Method and device for detecting service life of purified water filter element Download PDFInfo
- Publication number
- CN105561672A CN105561672A CN201610131937.1A CN201610131937A CN105561672A CN 105561672 A CN105561672 A CN 105561672A CN 201610131937 A CN201610131937 A CN 201610131937A CN 105561672 A CN105561672 A CN 105561672A
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- Prior art keywords
- filter core
- barrier film
- water
- contact
- filter element
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000008213 purified water Substances 0.000 title abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 52
- 239000002351 wastewater Substances 0.000 claims description 34
- 230000009467 reduction Effects 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000000543 intermediate Substances 0.000 description 11
- 229920003266 Leaf® Polymers 0.000 description 10
- 238000001914 filtration Methods 0.000 description 8
- 235000020188 drinking water Nutrition 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a method for detecting service life of a purified water filter element. The method comprises the steps of comparing pressure in a water inlet of a single filter element or a plurality of serially connected filter elements with the pressure in a water outlet of the single filter element or the serially connected filter elements; if a pressure difference exceeds a given threshold value P and maintains at the threshold value for a long time, regarding the service life of the filter element is ended. The invention discloses a device for detecting the service of the purified water filter element. The device comprises a shell, a swing rod and a contact switch, and is characterized in that the a left diaphragm and a right diaphragm are arranged in the shell; a right water storage cavity and a left water storage cavity are respectively formed on the external sides of the right and left diaphragms; a central cavity is formed between the left and right diaphragms; the swing rod is arranged in a through hole; the lower end of the swing rod is located between the left and right diaphragms; the upper end of the swing rod is cooperated with the contact switch. According to the detection method and device disclosed by the invention, the pressure in the water inlet of the filter element is compared with the pressure in the water outlet of the filter element; when the pressure difference exceeds the given threshold value and maintains at the threshold value for a long time, the service life of the filter element is regarded as being ended; compared with the existing method of replacing the filter element regularly or according to the amount of filtered water, the method disclosed by the invention more conforms to reality; the quality of the filtered water is ensured, and the waste caused by replacing the filter element untimely is also avoided.
Description
Technical field
The present invention relates to a kind of life detecting method and device of filter core of purifying waste water, in particular, particularly relating to a kind of by judging that the pressure between filter core water inlet end and water side carries out life detecting method and the device of the filter core of purifying waste water of life-span judgement.
Background technology
The water quality of drinking water, directly affects the healthy of the crowd of drinking, and ensures that the safety of drinking water is basic place.But along with socioeconomic develop rapidly, bring while enriching material, also result in serious environmental pollution, wherein water pollutions is particularly outstanding.The waste water of plant emissions, waste residue, waste gas not only directly pollute rainwash, but also infiltrate into underground, cause pollution to underground water.Therefore, in order to ensure the security of drinking water, usually can the water in tap water pipe network be purified again, to ensure the safety of drinking water.
In the purification process of drinking water, rely on filter core the fine impurity in water quality, heavy metal etc. to be filtered out, reach the object purified water.A set of water purification system, although adopt multi-stage filter core to complete purification of water quality, the life-span of each filter core is regular.Within service life, filter core can play filtration well; If exceeded useful life, then the filter capacity of filter core has reduced, and causes detergent power to decline or cannot filtering water, and therefore the life tests of filter core is particularly important.
About the detection of filter element life, usually adopt now periodic replacement filter core, or carry out more renew cartridge according to total purification water yield.But by the impact that water quality is different, when identical filter core purifies different quality, its service life is different, simple to rely on regularly or the fixing purification water yield weighs filter element life, be inaccurate, do not meet reality.
Summary of the invention
The present invention, in order to overcome the shortcoming of above-mentioned technical problem, provides a kind of life detecting method and device of filter core of purifying waste water.
The life detecting method of filter core of purifying waste water of the present invention and device, filter core of purifying waste water is provided with water inlet and delivery port; It is characterized in that, the life detecting method of filter core of purifying waste water is: by the pressure in the multiple filter core water inlets after single filter core or series connection compared with the pressure in delivery port, if pressure differential has exceeded the threshold value P of setting, then think that the service life of filter core or the multiple filter cores after connecting is most, need more renew cartridge.
The life detecting method of filter core of purifying waste water of the present invention and device, comprise housing, fork and contact-making switch, and the central authorities of housing are cavity, and two ends are respectively arranged with right inlet channel and left inlet channel; It is characterized in that: the arranged on left and right sides of housing central cavity is respectively arranged with left barrier film, right barrier film, the right water storage cavity communicated with filter core water inlet to be detected is formed between right barrier film with right inlet channel, form the left water storage cavity communicated with filter core delivery port to be detected between left barrier film with left inlet channel, between left barrier film with right barrier film, form the central cavity all do not communicated with left water storage cavity, right water storage cavity; Housing offers the through hole communicated with central cavity, contact-making switch is fixed on through hole, and fork is arranged in through hole by rotating mechanism, and the lower end of fork is between left barrier film and right barrier film, matches with contact-making switch in upper end; Along with its water penetration of use of filter core reduces gradually, the pressure differential in right water storage cavity and left water storage cavity is become greatly, rely on the distortion of right barrier film to order about fork and swing, the swing of fork can change the state of contact-making switch, realizes filter element life and detects.
The life detecting method of filter core of purifying waste water of the present invention and device, described rotating mechanism is made up of rotating shaft and U-shaped frame, and U-shaped frame is fixed on the housing of through hole both sides, and rotating shaft to be fixed on fork and to be placed in U-shaped frame; By coordinating of rotating shaft and U-shaped frame, fork can be rotated around the axis.
The life detecting method of filter core of purifying waste water of the present invention and device, described contact-making switch is provided with spring leaf, pin and contact, and spring leaf is positioned at the outside of contact, and the upper end of fork is positioned at the outside of spring leaf; Order about spring leaf in fork rotation process to exert pressure to contact, and then change the output state of pin on contact-making switch.
The life detecting method of filter core of purifying waste water of the present invention and device, described housing is provided with two fixed heads that contact-making switch is fixed, two fixed heads all offer rectangular pressure reduction regulating tank, contact-making switch offers the fixing hole matched with pressure reduction regulating tank; Fixing hole is fixed on the diverse location of pressure reduction regulating tank by fixed axis, to realize the adjustment to filter element life threshold pressure differential.
The life detecting method of filter core of purifying waste water of the present invention and device, described housing is made up of right shell body, intermediate and left shell, right shell body is provided with the right water inlet pipe offering right inlet channel, left shell is provided with the left water inlet pipe offering left inlet channel, left barrier film, right barrier film are arranged at left shell and intermediate, between right shell body and intermediate respectively; The both sides of intermediate are provided with the seal stopper ring to left barrier film and right diaphragm seal, and the lower end of fork is fixed with tup, and the center of left barrier film and right barrier film is provided with the projection matched with tup.
The life detecting method of filter core of purifying waste water of the present invention and device, the outer wall of described right inlet channel and left inlet channel be provided with the screw thread of connection function or connect the plug-in unit of mode soon.
The invention has the beneficial effects as follows: the life detecting method of filter core of purifying waste water of the present invention, by by the pressure on filter core or multi-stage filter core water inlet compared with the pressure on delivery port, when pressure differential exceedes the threshold value of setting, contact-making switch is passive closed, export closure signal, now then think that the service life of filter core is most, need more renew cartridge.The life detecting method of this dependence pressure differential, truly can reflect the actual filtration ability of filter core, with existing regularly or according to compared with the method for filtering the water yield and change filter core, more realistic, both ensure that the quality of filtering water, turn avoid too early the waste of more renew cartridge.
The life detecting device of filter core of purifying waste water of the present invention, the outside of right barrier film, left barrier film forms the right water storage cavity, the left water storage cavity that communicate with the water inlet of filter core, delivery port respectively, between fork is set, when pressure differential between right water storage cavity and left water storage cavity is larger, right barrier film can order about fork and swing, and is changed the on off operating mode of contact-making switch, to realize the life tests of filter core by fork, simple and reasonable, beneficial effect is remarkable.
Further, by arranging rectangular pressure reduction regulating tank on the fixed head of fixing contact-making switch, by contact-making switch being fixed on the diverse location of pressure reduction regulating tank, the magnitude of pressure differential in right water storage cavity and left water storage cavity when contact-making switch state changes can be changed, and then regulate the magnitude of pressure differential corresponding to filter element life detection.
Accompanying drawing explanation
Fig. 1 is the stereogram of the life detecting device of filter core of purifying waste water of the present invention;
Fig. 2 is the front view of the life detecting device of filter core of purifying waste water of the present invention;
Fig. 3 is the sectional view of the life detecting device of filter core of purifying waste water of the present invention;
Fig. 4 is the right view of the life detecting device of filter core of purifying waste water of the present invention;
Fig. 5 is the top view of the life detecting device of filter core of purifying waste water of the present invention;
Fig. 6 is the fundamental diagram of the life detecting device of filter core of purifying waste water of the present invention;
Fig. 7, Fig. 8 are the structural representation of contact-making switch in the present invention;
Fig. 9 is the structural representation of right shell body in the present invention;
Figure 10 is the structural representation of left barrier film or right barrier film in the present invention;
Figure 11 is the structural representation of intermediate in the present invention;
Figure 12 is the structural representation of left shell in the present invention.
In figure: 1 housing, 2 right inlet channels, 3 left inlet channels, 4 left barrier films, 5 right barrier films, 6 left water storage cavities, 7 right water storage cavities, 8 central cavity, 9 forks, 10 contact-making switches, 11 through holes, 12 rotating shafts, 13U shape frame, 14 tups, 15 fixed heads, 16 pressure reduction regulating tanks, 17 spring leafs, 18 pins, 19 contacts, 20 fixing holes, 21 right shell bodies, 22 intermediates, 23 left shells; 24 right water inlet pipes, 25 projections, 26 seal stopper rings, 27 left water inlet pipes, 28 fixed axis.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, sets forth the stereogram of the life detecting device of filter core of purifying waste water of the present invention, front view, right view and top view, Fig. 3 gives its sectional view, the life detecting device of shown filter core of purifying waste water is made up of housing 1, left barrier film 4, right barrier film 5, fork 9, contact-making switch 10, the inside of housing 1 is cavity, and the two ends of housing 1 are right inlet channel 2, left inlet channel 3.Left barrier film 4, right barrier film 5 are all arranged in the internal cavities of housing 1, form right water storage cavity 7 between right barrier film 5 and right inlet channel 2, and right water storage cavity 7 communicates with the water inlet of filter core to be detected; Form left water storage cavity 6 between left barrier film 4 and left inlet channel 3, left water storage cavity 6 communicates with the delivery port of filter core to be detected.Shown right inlet channel 3 and the outer wall of left inlet channel 2 have been provided with the screw thread of connection function or have connect the plug-in unit of mode soon, to realize the connection with exterior line.
Be central cavity 8 between shown left barrier film 4 and right barrier film 5, central cavity 8 does not all communicate with left water storage cavity 6, right water storage cavity 7.Housing 1 above central cavity 8 offers through hole 11, and contact-making switch 10 is fixed on the housing 1 at through hole 11 place; Fork 9 is arranged through through hole 11, and the lower end of fork 9 is arranged in central cavity 8, and upper end stretches out in through hole 11 and matches with contact-making switch 10.Fork 9 is arranged on housing 1 by rotating mechanism, rotating mechanism is made up of rotating shaft 12 and U-shaped frame 13, and two U-shaped framves 13 are fixed on the both sides of through hole 11, and the both sides of fork 9 are all fixed with rotating shaft 12, two rotating shafts 12 are placed in two U-shaped framves 13 respectively, to ensure that fork 9 can 12 swing around the shaft.
After life detecting device of the present invention is installed to the filter core two ends of filter core or multiple cascade, the hydraulic pressure in right water storage cavity 7 is equal with the hydraulic pressure in filter core water inlet, and the hydraulic pressure in left water storage cavity 6 is equal with the hydraulic pressure in filter core delivery port.Along with the prolongation of filter core service time, the filter capacity of filter membrane reduces gradually, its water penetration also reduces gradually, the pressure reduction of water inlet and delivery port can be made to become large, when pressure reduction increases to a certain degree, the distortion of right barrier film 5 can be made comparatively large, and then the amplitude of ordering about fork 9 swing is comparatively large, finally makes the switching state of contact-making switch 10 change.The state of contact-making switch 10 changes and can in stipulated time section, keep the life-span of this state representation filter core most, needs more renew cartridge, when the state of contact-making switch 10 occurs to change in short-term, namely as misoperation process.This filter element life detecting method, comes, more compared with renew cartridge, to reflect the actual state of filter core truly, objectively, both ensure that clean-up effect with regular or the fixed net water yield, turn avoid too early the waste of more renew cartridge.
As shown in Figure 7 and Figure 8, give the structural representation of contact-making switch 10, shown contact-making switch 10 is provided with contact 19, spring leaf 17 and 3 pins 18, spring leaf 17 is positioned at the outside of contact 19, when spring leaf 17 swings towards contact-making switch 10, contact 19 can be pressed to and then the switching state of pin 18 is changed.The upper end of fork 9 contacts with spring leaf 17, when spring leaf 17 being made to press to contact 19 in the process that fork 9 swings, the state of contact-making switch 10 is changed.
Shown housing 1 is fixed with two fixed heads be parallel to each other 15, contact-making switch 10 is fixed between two fixed heads 15, fixed head 15 offers rectangular pressure reduction regulating tank 15, contact-making switch 10 offers fixing hole 20, fixing hole 20 is fixed in pressure reduction regulating tank 16 by fixed axis 28.By changing the fixed position of fixing hole 20 on pressure reduction regulating tank 16, distance between adjustable springs sheet 17 and fork 9 top, and then change the fork 9 required angle swung when contact-making switch 10 on off operating mode changes, realize pressure reduction and regulate, the final life tests regulating filter core.
As shown in Figure 5, shown housing 1 is made up of right shell body 21, intermediate 22 and left shell 23, and right barrier film 5 is between right shell body 21 and intermediate 22, and left barrier film 4 is between left shell 23 and intermediate.As shown in Figure 9, give the structural representation of right shell body 21, shown right shell body 21 is provided with right water inlet pipe 24, the central authorities of right water inlet pipe 24 offer right inlet channel 2.Figure 11 gives the structural representation of intermediate 22, and the both sides of shown intermediate 22 are provided with the Sealing shield ring 26 matched with left barrier film 4 and right barrier film 5, to ensure the sealing of left water storage cavity 6 and right water storage cavity 7.Figure 12 gives the structural representation of left shell 23, left shell 23 is provided with left water inlet pipe 27.In 3, the lower end of shown fork 9 is fixed with tup 14; Figure 10 gives the structural representation of left barrier film 4 or right barrier film 5, and shown left barrier film 4 and the central authorities of right barrier film 5 are provided with the projection 25 matched with tup 14.
The life detecting method of filter core of purifying waste water of the present invention, by by the pressure on filter core or multi-stage filter core water inlet compared with the pressure on delivery port, when pressure differential exceedes the threshold value of setting, then think that the service life of filter core is most, need more renew cartridge.The life detecting method of this dependence pressure differential, truly can reflect the actual filtration ability of filter core, with existing regularly or according to compared with the method for filtering the water yield and change filter core, more realistic, both ensure that the quality of filtering water, turn avoid too early the waste of more renew cartridge.
Claims (7)
1. to purify waste water the life detecting method of filter core, filter core of purifying waste water is provided with water inlet and delivery port; It is characterized in that, the life detecting method of filter core of purifying waste water is: by the pressure in the multiple filter core water inlets after single filter core or series connection compared with the pressure in delivery port, if pressure differential has exceeded the threshold value P of setting, then think that the service life of filter core or the multiple filter cores after connecting is most, need more renew cartridge.
2. purify waste water the life detecting device of filter core, comprise housing (1), fork (9) and contact-making switch (10), the central authorities of housing are cavity, and two ends are respectively arranged with right inlet channel (2) and left inlet channel (3); It is characterized in that: the arranged on left and right sides of housing central cavity is respectively arranged with left barrier film (4), right barrier film (5), the right water storage cavity (7) communicated with filter core water inlet to be detected is formed between right barrier film with right inlet channel, form the left water storage cavity (6) communicated with filter core delivery port to be detected between left barrier film with left inlet channel, between left barrier film with right barrier film, form the central cavity all do not communicated with left water storage cavity, right water storage cavity; Housing offers the through hole (11) communicated with central cavity, contact-making switch is fixed on through hole, and fork is arranged in through hole by rotating mechanism, and the lower end of fork is between left barrier film and right barrier film, matches with contact-making switch in upper end; Along with its water penetration of use of filter core reduces gradually, the pressure differential in right water storage cavity and left water storage cavity is become greatly, rely on the distortion of right barrier film to order about fork and swing, the swing of fork can change the state of contact-making switch, realizes filter element life and detects.
3. the life detecting device of filter core of purifying waste water according to claim 2, it is characterized in that: described rotating mechanism is made up of rotating shaft (12) and U-shaped frame (13), U-shaped frame is fixed on the housing (1) of through hole (11) both sides, and rotating shaft is fixed on fork (9) and is gone up and be placed in U-shaped frame; By coordinating of rotating shaft and U-shaped frame, fork can be rotated around the axis.
4. the life detecting device of the filter core of purifying waste water according to Claims 2 or 3, it is characterized in that: described contact-making switch (10) is provided with spring leaf (17), pin (18) and contact (19), spring leaf is positioned at the outside of contact, and the upper end of fork (9) is positioned at the outside of spring leaf; Order about spring leaf in fork rotation process to exert pressure to contact (19), and then change the output state of pin on contact-making switch.
5. the life detecting device of filter core of purifying waste water according to claim 4, it is characterized in that: described housing (1) is provided with two fixed heads (15) that contact-making switch (10) is fixed, two fixed heads all offer rectangular pressure reduction regulating tank (16), contact-making switch (10) offers the fixing hole (20) matched with pressure reduction regulating tank; Fixing hole is fixed on the diverse location of pressure reduction regulating tank, to realize the adjustment to filter element life threshold pressure differential by fixed axis (28).
6. the life detecting device of the filter core of purifying waste water according to Claims 2 or 3, it is characterized in that: described housing (1) is made up of right shell body (21), intermediate (22) and left shell (23), right shell body is provided with the right water inlet pipe (24) offering right inlet channel (2), left shell is provided with the left water inlet pipe (27) offering left inlet channel (3), left barrier film (4), right barrier film (5) are arranged at left shell and intermediate, between right shell body and intermediate respectively; The both sides of intermediate are provided with the seal stopper ring (26) to left barrier film and right diaphragm seal, and the lower end of fork (9) is fixed with tup (14), and the center of left barrier film and right barrier film is provided with the projection (25) matched with tup.
7. the life detecting device of the filter core of purifying waste water according to Claims 2 or 3, is characterized in that: the outer wall of described right inlet channel (2) and left inlet channel (3) be provided with the screw thread of connection function or connect the plug-in unit of mode soon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131937.1A CN105561672B (en) | 2016-03-09 | 2016-03-09 | A kind of life detecting device of purified water filter core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131937.1A CN105561672B (en) | 2016-03-09 | 2016-03-09 | A kind of life detecting device of purified water filter core |
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| Publication Number | Publication Date |
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| CN105561672A true CN105561672A (en) | 2016-05-11 |
| CN105561672B CN105561672B (en) | 2017-10-27 |
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| CN201610131937.1A Active CN105561672B (en) | 2016-03-09 | 2016-03-09 | A kind of life detecting device of purified water filter core |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109211317A (en) * | 2018-09-10 | 2019-01-15 | 杭州老板电器股份有限公司 | Water purifier control method, device, water purifier and computer-readable medium |
| CN110688755A (en) * | 2019-09-28 | 2020-01-14 | 潍柴动力股份有限公司 | Method and system for calculating residual life of engine filter element |
| CN112840875A (en) * | 2020-12-31 | 2021-05-28 | 王华峰 | Movable multi-rotor shearing crusher and crushing method |
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| CN105561672B (en) | 2017-10-27 |
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