CN108854555A - A kind of reverse osmosis function membrane module of RO showing shelf-life - Google Patents
A kind of reverse osmosis function membrane module of RO showing shelf-life Download PDFInfo
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- CN108854555A CN108854555A CN201810793344.0A CN201810793344A CN108854555A CN 108854555 A CN108854555 A CN 108854555A CN 201810793344 A CN201810793344 A CN 201810793344A CN 108854555 A CN108854555 A CN 108854555A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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Abstract
The present invention relates to one kind can show that the reverse osmosis function membrane module of RO of shelf-life is arranged in the waterproof layer on the outside of membrane layer, service life display layer is provided on the outside of the waterproof layer including collector pipe, the membrane layer being arranged on the outside of collector pipe.The present invention is contacted with service life display layer for a long time using the metal ion in waste water, so that adsorbing metal ions color gradient layer contacts and reacts that its color is made to change for a long time with the metal ion in waste water, with the increase for using the time, the color of adsorbing metal ions color gradient layer becomes deeper；User can be by comparing the color of adsorbing metal ions color gradient layer and the color difference variation of standard colorimetric layer, it may know that the service life of the membrane layer there remains how many, this can ensure that user can show the reverse osmosis function membrane module of the RO of shelf-life described in capable of timely replacing.
Description
Technical field
The present invention relates to the reverse osmosis function membrane modules of RO that one kind can show shelf-life, belong to filtration art.
Background technique
Membrane module is the core component in reverse osmosis water purifier, and membrane module is by reverse osmosis membrane, pure water flow-guiding screen, raw water water conservancy diversion
Net is rolled around collector pipe, and periphery twines adhesive waterproof tape and fixes, and forms a columned membrane module, water is arranged above collector pipe
Pure water rooms are discharged to from water outlet after the filtered pure water of hole collection.
Membrane module is located at the water purifying chamber in reverse osmosis water purifier at present, and raw water enters raw water room, the original of raw water chamber interior
Water after being overpressurized by reverse osmosis membrane filtration at pure water, pure water enters the inner cavity of collector pipe by the water hole of collector pipe side wall,
The other end closed at one end and collector pipe of collector pipe opens wide, and prevents string water；Catchment tube cavity pure water eventually flow to it is pure
Water chamber.Raw water is divided into two parts after being filtered by membrane layer, a part is pure water, and another part is waste water, and waste water is then in waste water room
In keep in；It is separated between waste water room and raw water room by being set in the sealing collar on the outside of membrane module.
Current reverse osmosis water purifier in use, due to the limitation of membrane module service life, at regular intervals
As half a year, 1 year or 2 years need replacing a membrane module.But the water quality of different regions is different, membrane module actually makes
It is had differences with the service life, only simple replaced according to theoretical service life then can there are the following problems；For example, membrane module makes
With requiring replacement in the membrane module 1 year primary on specification, if the water quality of this area is preferable, the membrane module after 1 year is used
It can also continue to use, if replaced at this time, easily cause waste.It, should after half a year if the water quality of territory of use is excessively poor
The metal ion in water that membrane module filters out is just exceeded, needs replacing new membrane module at this time；But use at this time
Above situation is not known at family, still will continue to using until can just replace after half a year, this will affect the health of user.Cause
This, there is an urgent need to technologies or device that one kind can understand membrane module service life situation at any time at present.
Summary of the invention
The present invention can show the reverse osmosis functional membrane of the RO of shelf-life in view of the deficienciess of the prior art, providing one kind
Component, specific technical solution are as follows：
A kind of reverse osmosis function membrane module of RO showing shelf-life, including collector pipe, is arranged on the outside of collector pipe
Membrane layer is arranged in the waterproof layer on the outside of membrane layer, service life display layer is provided on the outside of the waterproof layer.
As an improvement of the above technical solution, the service life display layer includes basement membrane, and the front of the basement membrane is installed with more
Adsorbing metal ions color gradient layer, the front of the basement membrane are fixedly provided with adsorbing metal ions color gradient layer in interval
The standard colorimetric layer of distribution.
As an improvement of the above technical solution, the production method of the service life display layer is：By the dimethyl of 500 mass parts
Formamide, the 2-methylimidazole of 7.3~7.5 mass parts, the dicyandiamide of 53~57 mass parts, 90~100 mass parts bicarbonate
Sodium, the porous rubber powder of 200~250 mass parts, 260~280 mass parts E51 type epoxy resin, with greater than 200 revs/min turn
Speed stirring obtained the second glue after 3~4 hours, and the second glue is coated in the surface of glass-fiber-fabric, is toasted at 100~105 DEG C
It obtains within 10~15 minutes prepreg, then prepreg is close to the front with basement membrane, be put into hot press later, 1~
Hot-press solidifying obtains the adsorbing metal ions being fixedly connected with the front of basement membrane at 1.5bar and 120~130 DEG C after 8~10 hours
Standard colorimetric layer is finally fixedly connected with the front of basement membrane using glue by color gradient layer.
As an improvement of the above technical solution, the basement membrane is white polyester film.
As an improvement of the above technical solution, the preparation method of the porous rubber powder is：By the paraffin of 50~55 mass parts
It is put into stirred tank with the dimethylformamide of 500 mass parts, the material inside stirred tank is heated to 90~100 DEG C, in the temperature
Spend lower stirring paddle to give stirred tank cooling using ice-water bath after revolving speed high-speed stirred 20~30 minutes of 800~1000 revs/min, to
After the temperature of stirred tank materials inside is down to 25 DEG C, agitating paddle is stirred in temperature-fall period with the revolving speed greater than 200 revs/min；
Then to the addition 2-methylimidazole of 7.3~7.5 mass parts, the dicyandiamide of 53~57 mass parts, 8~10 mass inside stirred tank
Part 1- (2- pyridylazo)-beta naphthal, with the revolving speed stirring 30 greater than 200 revs/min~after forty minutes, then to inside stirred tank
Be added 60~66 mass parts cross the amphoteric ion-exchange resin of 8000 mesh, 60~66 mass parts cross 8000 molecules of interest sieve, 150~
The ethylenediamine tetra-acetic acid of 160 mass parts, the sodium bicarbonate of 60~70 mass parts, 260~280 mass parts E51 type epoxy resin,
The first glue is obtained after stirring 2~3 hours with the revolving speed greater than 200 revs/min, the first glue is poured into inner wall and is coated with release agent
In glue groove, obtain blob of viscose after then solidifying 8~10 hours at 120~130 DEG C, by blob of viscose lower than 35 DEG C at a temperature of crush
At the rubber powder for crossing 120 mesh；The dimethylbenzene of 1000 mass parts is poured into stirred tank, dimethylbenzene is heated to boiling, adds 100
Mass parts rubber powder is cooled to room temperature to obtain mixed liquor, the mixed liquor after stirring 2~3 hours with the revolving speed greater than 200 revs/min
Filter residue is obtained by filtration using filter paper, filter residue is obtained into porous rubber powder using drying after deionized water boiling.
Beneficial effects of the present invention：
It is contacted for a long time with service life display layer using the metal ion in waste water, so that adsorbing metal ions color gradient layer is long
Phase contacts and reacts that its color is made to change with the metal ion in waste water, with the increase for using the time, inhales
The color of attached metal ion color gradient layer becomes deeper；User can pass through the color of comparison adsorbing metal ions color gradient layer
Change with the color difference of standard colorimetric layer, that is, may know that the service life of the membrane layer there remains how many, this can ensure
User can show the reverse osmosis function membrane module of the RO of shelf-life described in capable of timely replacing, and avoid replacing bring wave ahead of time
Take, also avoids delay replacement bring health problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the RO reverse osmosis function membrane module of the present invention for showing shelf-life；
Fig. 2 is the structural schematic diagram of service life display layer of the present invention；
Fig. 3 is schematic diagram of the RO reverse osmosis function membrane module of the present invention for showing shelf-life in water purifying chamber.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Fig. 1~2, the reverse osmosis function membrane module of RO for showing shelf-life, including collector pipe 1, setting
The waterproof layer 3 in 2 outside of membrane layer is arranged in membrane layer 2 in 1 outside of collector pipe；The membrane layer 2 is by raw water flow-guiding screen, anti-
Permeable membrane, pure water flow-guiding screen are wound and are made further along the lateral wall of collector pipe 1 after being sequentially overlapped.Outside the waterproof layer 3
Side is provided with service life display layer 5.The service life display layer 5 includes basement membrane 51, and the front of the basement membrane 51 is installed with a plurality of absorption
Metal ion color gradient layer 52, the front of the basement membrane 51 are fixedly provided with adsorbing metal ions color gradient layer 52 in interval
The standard colorimetric layer 53 of distribution.
The reverse osmosis function membrane module of RO for showing shelf-life is when carrying out water purification work, as shown in figure 3, described
It can show that the reverse osmosis function membrane module of the RO of shelf-life is located at the inside of water purifying chamber 6, raw water enters raw water room 61, raw water room
Then raw water inside 61 enters by reverse osmosis membrane filtration from the head end of membrane layer 2 into pure water after being overpressurized, pure water passes through
The water hole of 1 side wall of collector pipe enters the inner cavity of collector pipe 1, and the tail end closing of collector pipe 1 prevents the pure water of 1 inner cavity of collector pipe
String water occurs with the raw water inside raw water room 61, the pure water of 1 inner cavity of collector pipe eventually flows to pure water rooms 62.Raw water is by membrane layer 2
It is divided into two parts after filtering, a part is pure water, and another part is waste water, and waste water is then kept in waste water room 63；Waste water room 63
It is separated between raw water room 61 by being set in the sealing collar 7 in 3 outside of waterproof layer；Wherein, the width of the waterproof layer 3 is greater than
The width of service life display layer 5, this enables 7 sets of sealing collar in 3 outside of waterproof layer.Calcium ion, magnesium ion, copper in raw water from
The metal ions such as son, mercury ion, cadmium ion, lead ion, nickel ion, chromium ion, manganese ion, ferrous ion are hindered by reverse osmosis membrane
Gear, to form waste water, calcium ion in the waste water, magnesium ion, copper ion, mercury ion, cadmium ion, lead ion, nickel ion, chromium from
The concentration of the metal ions such as son, manganese ion, ferrous ion significantly rises.
The water purifying chamber 6 can be made of clear material.In waste water room 63, the metal ion in waste water is aobvious with the service life for a long time
Show that layer 5 contacts, since adsorbing metal ions color gradient layer 52 is contacted with the metal ion in waste water for a long time in service life display layer 5
And react to making its color change, with the increase for using the time, adsorbing metal ions color gradient layer 52
Color becomes deeper；When the service life of membrane layer 2 reaches terminal, the color of the adsorbing metal ions color gradient layer 52
The as color of standard colorimetric layer 53；User can pass through the color and standard colorimetric of comparison adsorbing metal ions color gradient layer 52
The color difference variation of layer 53, that is, may know that the service life of the membrane layer 2 there remains how many；For example, can be by standard colorimetric
The color of layer 53 is divided into three gradients, respectively：The color when service life of membrane layer 2 there remains 20% is referring to, membrane layer 2
Color reference when there remains 5% of the service life of color reference and membrane layer 2 of the service life when there remains 10%.
The RO reverse osmosis function membrane module of the present invention for showing shelf-life is by the diaphragm in existing membrane module
The outside of layer 2 adds service life display layer 5, will not structure to existing membrane module and function be changed, that is to say, that nothing
The structure of common reverse osmosis water purifier in the market need to be reequiped, it is only necessary to which existing water purifying chamber 6 is used into transparent material system
At.
Embodiment 1
The production method of the service life display layer 5 is as follows：
1), the dimethylformamide of the paraffin of 50~55kg and 500kg is put into stirred tank, the material inside stirred tank
90~100 DEG C are heated to, agitating paddle is at such a temperature to adopt after revolving speed high-speed stirred 20~30 minutes of 800~1000 revs/min
Cooled down with ice-water bath to stirred tank, after the temperature of kettle materials inside to be mixed is down to 25 DEG C, agitating paddle is in temperature-fall period to be greater than
200 revs/min of revolving speed is stirred.
2), to the 2-methylimidazole of 7.3~7.5kg, the dicyandiamide of 53~57kg, 8~10kg are added inside stirred tank
1- (2- pyridylazo)-beta naphthal, with the revolving speed stirring 30 greater than 200 revs/min~after forty minutes, then to being added inside stirred tank
60~66kg crosses the amphoteric ion-exchange resin of 8000 mesh, 60~66kg cross 8000 molecules of interest sieve, 150~160kg second two
Amine tetraacethyl, the sodium bicarbonate of 60~70kg, 260~280kg E51 type epoxy resin, to be stirred greater than 200 revs/min of revolving speed
The first glue is obtained after mixing 2~3 hours, the first glue is poured into inner wall and is coated in the glue groove of release agent, then 120~130
Obtain blob of viscose after solidifying 8~10 hours at DEG C, by blob of viscose lower than 35 DEG C at a temperature of be ground into the rubber powders of 120 mesh；It will
The dimethylbenzene of 1000kg pours into stirred tank, and dimethylbenzene is heated to boiling, and adds 100kg rubber powder, to be greater than 200 revs/min
Revolving speed stir 2~3 hours after be cooled to room temperature to obtain mixed liquor, filter residue is obtained by filtration using filter paper in the mixed liquor, will filter
Slag obtains porous rubber powder using drying after deionized water boiling.
3), by the dimethylformamide of 500kg, the 2-methylimidazole of 7.3~7.5kg, the dicyandiamide of 53~57kg, 90~
The sodium bicarbonate of 100kg, the porous rubber powder of 200~250kg, 260~280kg E51 type epoxy resin, be greater than 200 revs/min
Revolving speed stir 3~4 hours after obtain the second glue, by the second glue be coated in glass-fiber-fabric surface, at 100~105 DEG C
Baking obtains prepreg for 10~15 minutes, then prepreg is close to the front with basement membrane 51, is put into hot press later,
Hot-press solidifying obtains the absorption being fixedly connected with the front of basement membrane 51 at 1~1.5bar and 120~130 DEG C after 8~10 hours
Standard colorimetric layer 53 is finally fixedly connected with the front of basement membrane 51 using glue by metal ion color gradient layer 52.Wherein, institute
Stating basement membrane 51 is white polyester film.
Degradation
The RO reverse osmosis functional membrane component label of the present invention for showing shelf-life is finished product；Wherein, described at this time
Adsorbing metal ions color gradient layer 52 is brown color.It places products into reverse osmosis water purifier and is purified.The original of water purification
In water, the concentration of calcium ion is 800mg/L in the raw water, and the concentration of copper ion is 50mg/L, and the concentration of ferrous ion is
20mg/L.The water flow of pure water is 0.9 ± 0.05L/s, daily water purification 22h, rest 2h in the reverse osmosis water purifier；It is so net
Water operation duration 0 17 days 4 months, the metal ion content that reverse osmosis water purifier is discharged in " pure water " was exceeded, such as content of copper ion
More than 1mg/L or ferrous ion content is more than 0.31mg/L.At this time by the reverse osmosis functional membrane of the RO for showing shelf-life
Component takes out from reverse osmosis water purifier, and the adsorbing metal ions color gradient layer 52 can be observed and have changed into rust red
Color.Wherein, since usual domestic consumer uses the time of water purifier to be no more than 6h daily, and during senile experiment, daily
Water purification work 22h, therefore, the RO reverse osmosis function membrane module of the present invention for showing shelf-life theoretically in the family may be used
It uses more than 14 months.
Color experiment 1
Service life display layer 5 in embodiment 1 is cut into the sample A of 15cm × 50cm, the adsorbing metal ions in sample A
Color gradient layer 52 is brown color.Sample A is put into the second test fluid, the concentration of calcium ion is in the second test fluid
4000mg/L, the concentration of copper ion are 250mg/L, and the concentration of ferrous ion is 100mg/L；Daily sample A is in the second test fluid
Middle immersion 22h, then naturally dry 2h；Primary the second new test fluid of replacement daily, so repeats 0 12 days 2 months, sample A
In adsorbing metal ions color gradient layer 52 become iron rust red.
Color experiment 2
In embodiment 1, if paraffin to be substituted for the paraffin powder of 60 mesh, i.e. step 1 is changed to 50~55kg and crosses 60 mesh
Paraffin powder and the dimethylformamide of 500kg be stirred in a stirring kettle.In this step, it is not necessarily to dimethylformamide
90~100 DEG C are heated to, would not also form tiny paraffin pearl in dimethylformamide.Later the step of, is with embodiment 1
Middle step 2 and step 3 are identical, so obtain the first control service life display layer 5.
First control service life display layer 5 is cut into the sample B of 15cm × 50cm, the adsorbing metal ions face in sample B
Color graded bedding 52 is brown color.Sample B is put into the second test fluid, the concentration of calcium ion is in the second test fluid
4000mg/L, the concentration of copper ion are 250mg/L, and the concentration of ferrous ion is 100mg/L；Daily sample B is in the second test fluid
Middle immersion 22h, then naturally dry 2h；Primary the second new test fluid of replacement daily, so repeats 4 months, the suction in sample B
Attached metal ion color gradient layer 52 only becomes light brown.
Color experiment 3
In the manufacturing process of service life display layer 5, if being added without molecular sieve and amphoteric ion-exchange resin, other steps
It is identical, finally obtain the second control service life display layer 5.
Second control service life display layer 5 is cut into the sample C of 15cm × 50cm, the adsorbing metal ions face in sample C
Color graded bedding 52 is brown color.Sample C is put into the second test fluid, the concentration of calcium ion is in the second test fluid
4000mg/L, the concentration of copper ion are 250mg/L, and the concentration of ferrous ion is 100mg/L；Daily sample C is in the second test fluid
Middle immersion 22h, then naturally dry 2h；Primary the second new test fluid of replacement daily, so repeats 4 months, the suction in sample C
Attached metal ion color gradient layer 52 only becomes yellowish-brown.
Color experiment 4
In the manufacturing process of service life display layer 5, if being only added without molecular sieve, other steps are identical, finally obtain
Three control service life display layers 5.
Third control service life display layer 5 is cut into the sample D of 1Scm × 50cm, the adsorbing metal ions face in sample D
Color graded bedding 52 is brown color.Sample D is put into the second test fluid, the concentration of calcium ion is in the second test fluid
4000mg/L, the concentration of copper ion are 250mg/L, and the concentration of ferrous ion is 100mg/L；Daily sample D is in the second test fluid
Middle immersion 22h, then naturally dry 2h；Primary the second new test fluid of replacement daily, so repeats 4 months, the suction in sample D
Attached metal ion color gradient layer 52 only becomes yellowish-brown.
Color experiment 5
In the manufacturing process of service life display layer 5, if being only added without amphoteric ion-exchange resin, other steps are identical,
Finally obtain the 4th control service life display layer 5.
4th control service life display layer 5 is cut into the sample E of 15cm × 50cm, the adsorbing metal ions face in sample E
Color graded bedding 52 is brown color.Sample E is put into the second test fluid, the concentration of calcium ion is in the second test fluid
4000mg/L, the concentration of copper ion are 250mg/L, and the concentration of ferrous ion is 100mg/L；Daily sample E is in the second test fluid
Middle immersion 22h, then naturally dry 2h；Primary the second new test fluid of replacement daily, so repeats 4 months, the suction in sample E
Attached metal ion color gradient layer 52 only becomes yellowish-brown.
Color experiment 6
In the manufacturing process of service life display layer 5, if only by the 1- of 8~10kg (2- pyridylazo)-beta naphthal, 60~
66kg crosses the amphoteric ion-exchange resin of 8000 mesh, 60~66kg cross 8000 molecules of interest sieve, 150~160kg ethylenediamine tetraacetic
Acetic acid, 60~70kg sodium bicarbonate be mixed into mixed powder.Then by the dimethylformamide of 500kg, 7.3~7.5kg
2-methylimidazole, the dicyandiamide of 53~57kg, the sodium bicarbonate of 90~100kg, the mixed powder of 200~250kg, 260~
The E51 type epoxy resin of 280kg obtains the second glue after stirring 3~4 hours with the revolving speed greater than 200 revs/min, by the second glue
Liquid is coated in the surface of glass-fiber-fabric, toasts 10~15 minutes at 100~105 DEG C and obtains prepreg, then prepreg is tight
The front of patch and basement membrane 51, is put into hot press, hot-press solidifying 8~10 is small at 1~1.5bar and 120~130 DEG C later
When after obtain the adsorbing metal ions color gradient layer 52 being fixedly connected with the front of basement membrane 51, finally by standard colorimetric layer 53 with
The front of basement membrane 51 is fixedly connected using glue obtains the 5th control service life display layer 5.
5th control service life display layer 5 is cut into the sample F of 15cm × 50cm, the adsorbing metal ions face in sample F
Color graded bedding 52 is brown color.Sample F is put into the second test fluid, the concentration of calcium ion is in the second test fluid
4000mg/L, the concentration of copper ion are 250mg/L, and the concentration of ferrous ion is 100mg/L；Daily sample F is in the second test fluid
Middle immersion 22h, then naturally dry 2h；Primary the second new test fluid of replacement daily, so repeats 4 months, the suction in sample F
Attached metal ion color gradient layer 52 only becomes light brown.Wherein, in first 15 days that sample F is impregnated, the second of immersion is surveyed
Test solution will become red once in a while, but the sample F becomes brown color once rushing by water again.
In the present invention, the adsorbing metal ions color gradient layer 52 is obtained after the prepreg solidification, used
Glass-fiber-fabric can be bonded as one after as reinforcing material the second glue being solidified with white polyester film, while also to have
There is excellent flexibility, i.e. service life display layer 5 can be wound without bursting apart.By the way of prepreg secondary curing,
It can also avoid that unrestrained glue on a large scale occurs in the front of white polyester film, guarantee 52 energy of adsorbing metal ions color gradient layer
Enough smoothly moldings.
Paraffin is noncrystal, but has apparent crystal structure.Separately there is artificial paraffin.Paraffin is also known as crystalline wax, usually
White, tasteless waxy solid is melted at 47~64 DEG C, because fusing point is low, common high speed ten thousand on the market cannot be used by determining
Can pulverizer crush because being easy glutinous net in crushing process；Moreover, the thermal sensitivity of paraffin determines the fineness for crushing paraffin,
Under normal conditions, paraffin smashing fineness is no more than 60 mesh.And in the present invention, paraffin does not dissolve in dimethylformamide, 90~
At a temperature of 100 DEG C, paraffin is fused into liquid, under high-speed stirred effect atoleine is broken on the wall tiny
Particle, after container is cooling, paraffin pearl can be formed；200 meshes can be crossed using paraffin pearl made of this above method.This makes
Paraffin pearl can be evenly distributed in the first glue.In the curing process, sodium bicarbonate is generated carbon by thermal decomposition to first glue
Sour sodium, carbon dioxide, water vapour, this can promote the blob of viscose after solidifying to form a large amount of aperture；And in solidification heating process, one
Paraffin pearl can flow out with aperture for part, but still remain the paraffin pearl being largely formed inside blob of viscose.By blob of viscose
It was ground into the rubber powder of 120 mesh；Paraffin can be dissolved in dimethylbenzene, and the dimethylbenzene boiled is immersed from the aperture in rubber powder, can be by glue
Remaining paraffin is to dissolution in powder, that is to say, that remaining paraffin is by xylene soluble, after washing drying, glue in rubber powder
The location of original paraffin forms a micropore in powder.
Porous rubber powder is fixed on the front of white polyester film by E51 type epoxy resin, and sodium bicarbonate starts at high temperature
It decomposes so that prepreg surface forms a large amount of aperture, the aperture or micropore shape of a part of aperture and porous vulcanized rubber powder
At hole path.
Color experiment 1 and color experiment 2 are analyzed, i.e., if the paraffin pearl of 200 meshes was not made, and only with 60 mesh excessively
The paraffin powder of sieve, then in obtained porous rubber powder be not present micropore, this make it is subsequent can not generate chelate, specifically in color
It is shown as in experiment 2, the color change of the adsorbing metal ions color gradient layer 52 in sample B is little, the final ADSORPTION OF GOLD
Belong to ion color gradient layer 52 and does not still become rust red color.
In waste water room, due to waste water long period of soaking adsorbing metal ions color gradient layer 52, metal ion is dense in waste water
Degree is high, under the action of the pore structure and molecular sieve of porous rubber powder itself, enable porous rubber powder adsorb in waste water metal from
Son, the metal ions such as Cu in waste water ion, cadmium ion, lead ion, nickel ion, manganese ion, ferrous ion can be with 1- (2- pyridines
Azo)-beta naphthal forms red chelate under the catalysis of molecular sieve and amphoteric ion-exchange resin.Wherein, ethylenediamine tetrem
Acid is chelating agent；Molecular sieve and amphoteric ion-exchange resin are catalyst, test 3, color by analysis color experiment 1, color
It is found that be added without molecular sieve and amphoteric ion-exchange resin, this, which will lead to, subsequent can not generate chelating for experiment 4, color experiment 5
Object；Molecular sieve and amphoteric ion-exchange resin, which is added, simultaneously to promote chelate to generate, such as generates red chelate；Residual
Sodium bicarbonate, sodium carbonate and amphoteric ion-exchange resin react the suitable pH environment of offer with being combined into.Due to the chelating of generation
The poorly water-soluble of object, it may appear that precipitating, and adsorbing metal ions color gradient layer 52 itself has porous structure, for going out for precipitating
Space is now provided, this allows for the subsequent discoloration that can be stable of adsorbing metal ions color gradient layer 52.
The core of adsorbing metal ions color gradient layer 52 is porous rubber powder, the gold in porous rubber powder Long Term Contact waste water
Belong to ion, and react to generate red precipitating with the metal ion in waste water, it is aobvious which can fill the script service life
Show the hole in layer 5, service life display layer 5 finally made to be shown as designated color, by with the standard colorimetric layer that has been previously set
53 are compared, and you can get it, and the reverse osmosis function membrane module of the RO there remains how many service life, and client is reminded to replace in time.ADSORPTION OF GOLD
Belonging to ion color gradient layer 52 originally is brown color, when the reverse osmosis function membrane module of the RO reaches the terminal in service life, the suction
Attached metal ion color gradient layer 52 can become iron rust red, and the red color difference between brown color of iron rust is obvious, and discoloration is sharp.
In porous rubber powder, since epoxy resin can exchange 1- therein (2- pyridylazo)-beta naphthal, amphoteric ion
The substances such as resin, molecular sieve, ethylenediamine tetra-acetic acid form package, so that 1- therein (2- pyridylazo)-beta naphthal, ethylenediamine
Tetraacethyl etc. can slowly be discharged and be reacted with the metal ion in waste water.If not using epoxy resin package and shape
At porous structure, even when react and form red chelate, it also can be by waste water to washing away, thus can not be by red chela
Conjunction object is fixed up, that is, can not finally make adsorbing metal ions color gradient layer 52 that can become iron rust red.It can lead to
Crossing analysis color experiment 1 and color experiment 6 can further prove：If being directly added into 1- (2- pyridylazo)-beta naphthal, both sexes
Ion exchange resin, molecular sieve, ethylenediamine tetra-acetic acid, rather than porous rubber powder is first made, even if the 5th control service life display layer 5
In contain 1- (2- pyridylazo)-beta naphthal, molecular sieve, amphoteric ion-exchange resin, ethylenediamine tetra-acetic acid, even if generating once in a while
Red chelate, but can not be fixed will also make sample F become brown color again once rushing by water.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. one kind can show the reverse osmosis function membrane module of the RO of shelf-life, including collector pipe, the film being arranged on the outside of collector pipe
The waterproof layer on the outside of membrane layer is arranged in lamella, it is characterised in that：Service life display layer is provided on the outside of the waterproof layer.
2. one kind according to claim 1 can show the reverse osmosis function membrane module of the RO of shelf-life, it is characterised in that：Institute
Stating service life display layer includes basement membrane, and the front of the basement membrane is installed with a plurality of adsorbing metal ions color gradient layer, the basement membrane
To be fixedly provided with adsorbing metal ions color gradient layer be in the standard colorimetric layer that is spaced apart in front.
3. one kind according to claim 2 can show the reverse osmosis function membrane module of the RO of shelf-life, it is characterised in that：Institute
The production method for stating service life display layer is：By the dimethylformamide of 500 mass parts, the 2- methyl miaow of 7.3~7.5 mass parts
Azoles, the dicyandiamide of 53~57 mass parts, the sodium bicarbonate of 90~100 mass parts, the porous rubber powder of 200~250 mass parts, 260
The E51 type epoxy resin of~280 mass parts obtains the second glue after stirring 3~4 hours with the revolving speed greater than 200 revs/min, will
Second glue is coated in the surface of glass-fiber-fabric, toasts at 100~105 DEG C and obtains within 10~15 minutes prepreg, then will be partly solid
Change piece be close to the front of basement membrane, be put into hot press later, at 1~1.5bar and 120~130 DEG C hot-press solidifying 8~
The adsorbing metal ions color gradient layer being fixedly connected with the front of basement membrane is obtained after 10 hours, finally by standard colorimetric layer and base
The front of film is fixedly connected using glue.
4. one kind according to claim 3 can show the reverse osmosis function membrane module of the RO of shelf-life, it is characterised in that：Institute
Stating basement membrane is white polyester film.
5. one kind according to claim 3 can show the reverse osmosis function membrane module of the RO of shelf-life, it is characterised in that：Institute
The preparation method for stating porous rubber powder is：The dimethylformamide of the paraffin of 50~55 mass parts and 500 mass parts is put into stirring
In kettle, the material inside stirred tank is heated to 90~100 DEG C, and agitating paddle is high with 800~1000 revs/min of revolving speed at such a temperature
Cooled down using ice-water bath to stirred tank after speed stirring 20~30 minutes, after the temperature of kettle materials inside to be mixed is down to 25 DEG C, drop
Agitating paddle is stirred during temperature with the revolving speed greater than 200 revs/min；Then to 7.3~7.5 mass parts of addition inside stirred tank
2-methylimidazole, the dicyandiamides of 53~57 mass parts, 8~10 mass parts 1- (2- pyridylazo)-beta naphthal, to be greater than
200 revs/min of revolving speed stirring 30~after forty minutes, then to be added inside stirred tank 60~66 mass parts cross the both sexes of 8000 mesh from
Sub-exchange resin, 60~66 mass parts cross 8000 molecules of interest sieve, the ethylenediamine tetra-acetic acid of 150~160 mass parts, 60~70 matter
The sodium bicarbonate of part, the E51 type epoxy resin of 260~280 mass parts are measured, is stirred 2~3 hours with the revolving speed greater than 200 revs/min
After obtain the first glue, the first glue is poured into inner wall and is coated in the glue groove of release agent, then at 120~130 DEG C solidification 8~
Obtain blob of viscose after 10 hours, by blob of viscose lower than 35 DEG C at a temperature of be ground into the rubber powders of 120 mesh；By the two of 1000 mass parts
Toluene pours into stirred tank, and dimethylbenzene is heated to boiling, and adds 100 mass parts rubber powders, to be greater than 200 revs/min of revolving speed
Stirring is cooled to room temperature to obtain mixed liquor after 2~3 hours, and the mixed liquor is obtained by filtration filter residue using filter paper, filter residue is used
Drying obtains porous rubber powder after deionized water boiling.
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| CN106802299A (en) * | 2017-01-24 | 2017-06-06 | 厦门建霖工业有限公司 | A kind of household drinker with Inlet and outlet water hardness monitoring function |
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| EP0527136A1 (en) * | 1990-05-04 | 1993-02-17 | Allied Signal Automotive Of Ca | Method for predicting life of air filter cartridges. |
| CN1298097A (en) * | 1999-11-25 | 2001-06-06 | 三浦工业株式会社 | Hardness indicator composition for water hardness measurement and hardness measuring method |
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