CN110877942A - Automatic operation method of ultrapure water equipment - Google Patents
Automatic operation method of ultrapure water equipment Download PDFInfo
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- CN110877942A CN110877942A CN201911403244.3A CN201911403244A CN110877942A CN 110877942 A CN110877942 A CN 110877942A CN 201911403244 A CN201911403244 A CN 201911403244A CN 110877942 A CN110877942 A CN 110877942A
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- reverse osmosis
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- 229910021642 ultra pure water Inorganic materials 0.000 title claims abstract description 50
- 239000012498 ultrapure water Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 523
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 109
- 239000012528 membrane Substances 0.000 claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 239000006004 Quartz sand Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000001954 sterilising effect Effects 0.000 claims abstract description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 5
- 238000007667 floating Methods 0.000 claims description 77
- 238000011010 flushing procedure Methods 0.000 claims description 20
- 230000002950 deficient Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 10
- 230000003111 delayed effect Effects 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 8
- 238000013021 overheating Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- -1 floating objects Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an automatic operation method of ultrapure water equipment, which comprises the following steps of 1, feeding water into the equipment; step 2, pumping raw water from a raw water tank by a raw water pump, and sequentially passing through a quartz sand filter, an activated carbon filter, a softening filter and a precision filter; 3, allowing water to pass through a first-stage reverse osmosis membrane by a high-pressure pump, allowing pure water to enter a first-stage pure water tank, and allowing concentrated water to enter a concentrated water tank; step 4, the second-stage high-pressure pump conveys water in the first-stage pure water tank to a second-stage reverse osmosis membrane, pure water enters the second-stage pure water tank, and concentrated water returns to the original water tank; step 5, the EDI delivery pump delivers the water in the second-stage pure water tank to pass through the precision filter, the ultraviolet sterilization module and the online water quality monitoring module, and then the water is discharged into the ultra-pure water tank; step 6, the delivery pump delivers the water in the ultrapure water tank to a use point; step 7, setting running time; and 8, starting automatic operation. Through the mode, the service life of the motor and the electric appliance can be protected while the motor and the electric appliance are operated.
Description
Technical Field
The invention relates to the field of water treatment, in particular to an automatic operation method of ultrapure water equipment.
Background
At present, an operating system in the water treatment industry is not designed by a programmer specially attacking the water treatment industry, the advantages of the equipment in the aspects of pipeline technology and the like cannot be fully played by a program, the service life of a motor and an electric appliance cannot be protected while the program runs, and the operation can only be carried out at the very least.
The ultrapure water equipment is water treatment equipment which adopts methods such as pretreatment, reverse osmosis technology, ultrapure treatment, post-treatment and the like to almost completely remove conductive media in water and remove colloid substances, gases and organic matters which are not dissociated in water to a very low degree.
The ultrapure water device operated manually or semi-automatically often has the problems that an operator leaks to operate a certain valve or is unskilled in operation, part of operation steps are forgotten, the ultrapure water device is damaged by accessories, a membrane is blocked/perforated/EDI module is scrapped and the like, and when the ultrapure water device is operated, the condition of insufficient water supply can also appear in the front, so that filtered impurities in pretreatment are sucked into a reverse osmosis membrane, and the filtering effect cannot be achieved. When the quality of the outlet water does not meet the requirement, the produced water can continuously enter the ultrapure water tank, and the quality of the subsequent water consumption point process is influenced. When the equipment fails, the equipment stops alarming, but the reason of the failure is unknown.
Disclosure of Invention
The invention mainly solves the technical problem of providing an automatic operation method of ultrapure water equipment, which can protect the service life of motor and electric appliance while considering operation and can prompt the fault reason when the equipment has fault.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is an automated operation method of an ultrapure water device, comprising the following steps:
step 2, starting the pretreatment host, connecting a raw water pump to a water outlet pipe of the raw water tank, and arranging a raw water pump delivery switch, a pretreatment pressure overhigh switch and a raw water pump thermal protection module on the raw water pump; determining whether the raw water tank is lack of water or not through a raw water tank water shortage floating ball signal, wherein the raw water tank water shortage floating ball signal-free indicates water shortage, a raw water pump is not started when the raw water tank is lack of water, a raw water pump conveying switch is turned on, the raw water pump is started, the raw water pump pumps the raw water out of the raw water tank, and the raw water sequentially passes through a quartz sand filter, an activated carbon filter, a softening filter and a precision filter; the pretreatment pressure overhigh switch monitors the water outlet pressure of the raw water pump, and the raw water pump stops when the water outlet pressure of the raw water pump is overhigh; the raw water pump thermal protection module monitors the running temperature of the raw water pump, and the raw water pump is stopped when the temperature is too high;
step 3, starting the primary reverse osmosis host, enabling the water pressure of the water to be reduced after the water passes through the filter in the step 2, conveying the water filtered in the step 2 to the primary reverse osmosis membrane by the pressurization of the high-pressure pump, enabling the pure water passing through the primary reverse osmosis membrane to enter a primary pure water tank, enabling the concentrated water passing through the primary reverse osmosis membrane to enter a concentrated water tank, and arranging a primary flushing electromagnetic valve between the primary reverse osmosis membrane and the concentrated water tank; before the water filtered in the step 2 enters the high-pressure pump, the water yield is monitored through a low-pressure protection switch, the high-pressure pump is not started when the water yield is insufficient, and the high-pressure pump is started when the water yield is sufficient; the high-pressure pump is provided with a primary high-pressure protection module and a high-pressure pump thermal protection module, the high-pressure pump stops when the primary high-pressure protection module monitors that the water outlet pressure of the high-pressure pump exceeds a certain value, and the high-pressure pump stops when the high-pressure pump thermal protection module monitors that the operating temperature of the high-pressure pump is overhigh;
step 4, starting the secondary reverse osmosis host, arranging a secondary high-pressure pump on a water outlet pipe of the primary pure water tank, conveying water in the primary pure water tank to the secondary reverse osmosis membrane by the secondary high-pressure pump, filtering by the secondary reverse osmosis membrane, allowing pure water to enter the secondary pure water tank, returning concentrated water to the original water tank, and arranging a secondary flushing electromagnetic valve between the secondary reverse osmosis membrane and the original water tank; a pure water tank water shortage floating ball and a pure water tank water full floating ball are arranged in the first-stage pure water tank, and a second-stage high-pressure pump heat protection module and a second-stage high-pressure protection switch are arranged on the second-stage high-pressure pump; the water purification tank full water floating ball in the first-stage water purification tank controls the start of the pretreatment host and the first-stage reverse osmosis host, the pretreatment host and the first-stage reverse osmosis host stop when the water purification tank full water floating ball has a signal, and the pretreatment host and the first-stage reverse osmosis host continuously run when the water purification tank full water floating ball has no signal; the pure water tank water-deficient floating ball in the first-stage pure water tank controls the starting of the second-stage high-pressure pump, the second-stage high-pressure pump is stopped when the pure water tank water-deficient floating ball has no signal, and the second-stage high-pressure pump is started when the pure water tank water-deficient floating ball has a signal; when the secondary high-pressure protection switch monitors that the water outlet pressure of the secondary high-pressure pump exceeds a certain value, the secondary high-pressure pump is stopped, and when the secondary high-pressure pump thermal protection module monitors that the operating temperature of the secondary high-pressure pump is overhigh, the secondary high-pressure pump is stopped;
step 5, starting the reverse osmosis water outlet and the EDI host, wherein an EDI delivery pump is arranged on a water outlet pipe of the second-stage pure water tank, the EDI delivery pump conveys water in the second-stage pure water tank out and sequentially passes through a precision filter, an ultraviolet sterilization module and an online water quality monitoring module, an EDI working electromagnetic valve and an EDI circulating electromagnetic valve are arranged on the online water quality monitoring module, the online water quality monitoring module monitors that the water quality reaches a set value and then discharges the water into the ultra-pure water tank through the EDI working electromagnetic valve, the online water quality monitoring module monitors that the water quality does not reach the set value and then discharges the water back to the second-stage pure water tank through the EDI circulating electromagnetic valve, and when the ultra-pure water tank is full of water; a second-stage pure water tank full water floating ball and an EDI water-shortage liquid level switch are arranged in the second-stage pure water tank; the full water floating ball of the second-stage pure water tank controls the start of the pretreatment host and the second-stage reverse osmosis host, the pretreatment host and the second-stage reverse osmosis host are stopped when the full water floating ball of the second-stage pure water tank has a signal, and the pretreatment host and the second-stage reverse osmosis host continuously run when the full water floating ball of the second-stage pure water tank has no signal; the EDI water shortage liquid level switch controls the start and stop of the EDI delivery pump; the EDI conveying pump is provided with an EDI pump thermal protection module and an EDI high-voltage protection switch, when the EDI high-voltage protection switch monitors that the water pressure of the EDI conveying pump exceeds a certain value, the EDI conveying pump stops, and when the EDI pump thermal protection module monitors that the operating temperature of the EDI pump is overhigh, the EDI conveying pump stops;
step 6, conveying the water storage tank and the pure water, wherein a water outlet pipe of the ultrapure water tank is provided with a conveying pump, and the conveying pump conveys the water in the ultrapure water tank to a use point; an ultrapure water tank full water floating ball and an ultrapure water tank water shortage floating ball are arranged in the ultrapure water tank, the EDI host machine is stopped when the ultrapure water tank full water floating ball has a signal, and the EDI host machine continuously operates when the ultrapure water tank full water floating ball has no signal; when the water-deficient floating ball of the ultrapure water tank has no signal, the delivery pump is stopped, and when the water-deficient floating ball of the ultrapure water tank has a signal, the delivery pump is started; the conveying pump is provided with a conveying pump high-pressure protection switch, and the conveying pump is controlled to stop when the conveying pump high-pressure protection switch monitors that the water pressure of the conveying pump is too high;
and step 7, setting the running time,
A. setting first-stage reverse osmosis parameters:
a1, delaying the starting time of the high-pressure pump, wherein the delayed starting time is set as the time for the high-pressure pump to delay the starting time of other electrical appliances when the equipment automatically runs;
a2, starting the high-pressure pump in a water-shortage delayed mode;
a3, flushing time of a first-level flushing electromagnetic valve;
a4, the working time of the first-stage reverse osmosis is set as the time for which the first-stage reverse osmosis host runs and then is washed once;
B. setting secondary reverse osmosis parameters:
b1, delaying the starting time of the secondary high-pressure pump, wherein the delayed starting time is set as the time for the secondary high-pressure pump to delay the starting time of other electrical appliances when the equipment automatically runs;
b2, starting the secondary high-pressure pump in a water-shortage delay mode;
b3, flushing time of a secondary flushing electromagnetic valve;
b4, secondary reverse osmosis working time; the device is flushed once after the secondary reverse osmosis equipment operates for a specified time;
and 8, starting automatic operation, clicking the automatic operation by an operator, and entering a full-automatic operation state by the system according to the set operation time.
Further, a water-full floating ball of the concentrated water tank is arranged in the concentrated water tank, the primary reverse osmosis host continuously operates when the water-full floating ball of the concentrated water tank has no signal, and the primary reverse osmosis host stops when the water-full floating ball of the concentrated water tank has a signal.
Furthermore, an ultraviolet sterilization module, polishing resin and a 0.22 μm filter are sequentially arranged on a pipeline between the delivery pump and a use point.
The invention has the beneficial effects that: the invention can maximize the use efficiency of reverse osmosis equipment, protect the service life of an equipment pump by the most effective method and protect the service life of the reverse osmosis membrane; after the equipment fails, the position of the failure can be visually displayed, and the failure can be more effectively solved; when equipment pump breaks down, can count this problem, after reaching certain number of times, will send out alarm command to stop the operation of this pump, the protection pump can not be because of frequent start-up number of times is too much and the damage falls.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of a method for automating the operation of an ultrapure water apparatus of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is an enlarged view of portion C of FIG. 1;
FIG. 5 is an enlarged view of portion D of FIG. 1;
FIG. 6 is an enlarged view of section E of FIG. 1;
FIG. 7 is a diagram of a first stage reverse osmosis alarm unit when the ultrapure water apparatus is in operation;
FIG. 8 is a diagram of a two-stage high-pressure pump alarm device in operation of the ultrapure water apparatus;
FIG. 9 is a diagram of an EDI alarm apparatus when the ultrapure water apparatus is in operation;
FIG. 10 is a diagram of a pump alarm device in operation of the ultrapure water apparatus;
FIG. 11 is a schematic view showing the construction of the ultrapure water apparatus.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The embodiment of the invention comprises the following steps:
an automated operation method of an ultrapure water device, comprising the steps of:
the automatic reverse osmosis water supply system has the technical advantages that the water level of the original water tank is monitored in real time, the water inflow of tap water and reverse osmosis water supply are controlled, and the problems of water level overflow and idle running and burning of a water-deficient pump of equipment caused by unattended equipment are solved.
Step 2, the pretreatment is started, whether the water tank is lack of water is determined through a water lack floating ball signal of the raw water tank, when water exists, the raw water is pumped to the quartz sand (the quartz sand can filter particles, floating objects, colloid and the like in the water) active carbon (the active carbon can adsorb residual chlorine in the water and can also improve the taste) filter from the raw water tank by the raw water pump. Then passes through a precision filter (to prevent the first two filters from having poor or invalid effect, so as to play a role in protection).
The method has the technical advantages that the pressure of the pretreatment pipeline is monitored in real time, and the phenomenon that the pipeline and the filter are broken due to overhigh pressure because the pretreatment filter is blocked and the raw water pump continuously supplies water is avoided.
The system controls the raw water pump to start and stop through the pressure switch, and the situation is effectively avoided. The main focus is on the setting of the pressure switch parameters.
And 3, starting the primary reverse osmosis host, wherein the water pressure is greatly reduced as the water passes through the three filters. If the reverse osmosis low-voltage protection switch cannot sense the water pressure because of insufficient water inflow, the reverse osmosis main machine cannot be started at the time, and the reverse osmosis main machine is started only when water exists in the pipeline and forms the water pressure. Because the inlet water of the reverse osmosis membrane needs to be under certain pressure to reach the water yield of the membrane. The salt content of the permeable membrane is diluted by the rated water yield, the salt permeability is reduced, and the salt rejection rate is improved. When the water inlet pressure exceeds a certain value, the concentration polarization is increased due to the overhigh recovery rate, the salt permeability is increased, the increased water yield is offset, and the desalination rate is not increased any more. Too high pressure can lead to the rivers speed too fast again, and the quick striking of impurity in the aquatic is on reverse osmosis membrane piece, and long-term operation leads to the direct perforation of membrane to scrap. Therefore, the water pressure needs to be pumped to a specified pressure by the high-pressure pump, and the water pressure needs to be prevented from being too high, and a high-pressure protection switch needs to be added behind the pump to prevent the water inlet pressure from being too high. Playing a role of protection.
The method has the technical advantages that the pressure switch in front of the reverse osmosis high-pressure pump is used for monitoring the pressure of the pretreated effluent in real time, and the reverse osmosis high-pressure pump cannot be started when the water pressure in the pipeline does not reach the low limit value set by the pressure switch. When the water yield of the prior treatment is insufficient, the high-pressure pump of the reverse osmosis equipment at the back can forcibly pump the water of the prior treatment, so that the impurities filtered in the prior treatment equipment are easily pumped away, and the deformation of the filtering tank of the prior treatment and the blockage of the reverse osmosis membrane are caused. Therefore, two high-pressure and low-pressure switches which are monitored in real time are added in front of and behind the high-pressure pump, so that the situations of the situations can be avoided, and the situations of the water quality reduction of the reverse osmosis membrane caused by overhigh water pressure and the equipment damage caused by overhigh pressure can be prevented.
And 4, starting the secondary reverse osmosis host, controlling the starting of the secondary reverse osmosis by the water-deficient liquid level floating ball of the primary pure water tank, and when the floating ball does not float upwards to give a signal, always keeping the secondary reverse osmosis in a water-deficient state, so that the secondary high-pressure pump is prevented from being burnt due to water-deficient operation. And to the setting of floater height, will guarantee that the water level can form certain pressure at the condition of certain height, water just can reach reverse osmosis membrane's the requirement of intaking after the pressure boost of second grade high-pressure pump like this. Because the inlet water of the reverse osmosis membrane needs to be under certain pressure to reach the water yield of the membrane. The salt content of the permeable membrane is diluted by the rated water yield, the salt permeability is reduced, and the salt rejection rate is improved. When the water inlet pressure exceeds a certain value, the concentration polarization is increased due to the overhigh recovery rate, the salt permeability is increased, the increased water yield is offset, and the desalination rate is not increased any more. Too high pressure can lead to the rivers speed too fast again, and the quick striking of impurity in the aquatic is on reverse osmosis membrane piece, and long-term operation leads to the direct perforation of membrane to scrap. Therefore, the water pressure needs to be pumped to the designated pressure through the high-pressure pump, and the water pressure is prevented from being too high, so that a high-pressure protection switch needs to be added behind the pump to prevent the water inlet pressure from being too high, and the protection effect is achieved.
And 5, reverse osmosis effluent and EDI are started, reverse osmosis produced water is concentrated water and pure water, primary reverse osmosis concentrated water can be directly discharged or used as cleaning water in daily life, and secondary reverse osmosis concentrated water is primary pure water, so that the quality of the secondary concentrated water is higher than that of raw water even if the secondary concentrated water is the pure water, and the secondary concentrated water is directly returned to the raw water tank. The second-stage reverse osmosis pure water directly enters the pure water tank, a full water floating ball is arranged in the second-stage water tank, when the liquid level reaches a certain height, the full water floating ball gives a signal, the reverse osmosis equipment is stopped, and when the liquid level falls to the certain height, the reverse osmosis equipment is started again. And the water-deficient floating ball of the secondary reverse osmosis water tank controls the start and stop of the EDI host. In order to prevent the quality of the prepared water from being deteriorated due to storage or contact with air, an ultraviolet sterilizer is generally respectively installed at the water inlet position and the water outlet position of the water tank, or an ultraviolet sterilizing lamp is embedded in the water tank. So as to ensure that the EDI effluent quality reaches 15M omega cm.
The method has the technical advantages that the quality of produced water is monitored in real time, when the water quality does not meet the use requirement, the water return electromagnetic valve is automatically opened, produced water of the EDI equipment flows back to the secondary water tank, when the water quality meets the requirement, the pure water electromagnetic valve is opened to normally enter the pure water tank, the stability of the quality of the produced water is ensured, and the later use is not influenced.
And 6, conveying the water storage tank and the pure water, wherein the EDI produced water comprises concentrated water and the pure water, the concentrated water can be directly discharged generally, and the pure water is the main produced water of the equipment and directly enters the pure water tank. The pure water tank is internally provided with a full water floating ball, when the liquid level reaches a certain height, the full water floating ball gives a signal, and the EDI host machine stops. When the liquid level is lowered to a certain height, the starting is carried out again. The delivery pump is controlled to be opened through the water-deficient floating ball of the pure water tank, pure water enters the delivery pump, and then water does not flow in the pipeline after the valve of the use point because the use point is not in a normally open state, so that the pressure can be increased, and the valve and the backflow pipeline are required to be added on the pipeline to ensure that the water circulates all the time.
The method has the technical advantages that the pressure of the conveying pipeline is monitored in real time, and the phenomenon that the pressure of the pipeline is too high due to the fact that the conveying pump continuously operates under the condition that a valve at a use point is closed can be avoided.
And step 7, setting the running time,
A. setting first-stage reverse osmosis parameters:
a1, delaying the starting time of the high-pressure pump; the reverse osmosis high-pressure pump is set to delay the starting time of other electrical appliances when the equipment automatically runs, so as to prevent the condition that the water pressure of the pre-treated effluent is insufficient when the equipment is just started.
A2, starting the high-pressure pump in a water-shortage delayed mode; this setting can avoid appearing because of under the unstable condition of water pressure, the problem that the high-pressure pump frequently starts that the low pressure protection switch frequently beats and arouses.
A3, flushing time of a flushing electromagnetic valve; should set up to reverse osmosis equipment automatic operation, open the solenoid valve and carry out the washing time that directly washes after having operated a period of time, directly wash for the quick washing fall the interior fouling thing of reverse osmosis membrane, prevent that the membrane from blockking up.
A4, reverse osmosis working time; the setting is how long the reverse osmosis plant operates for a flush.
A5, high-pressure delay of a delivery pump; the arrangement is such that the delivery pump delays the time to shut down after the high pressure indication.
B. Setting secondary reverse osmosis parameters:
b1, delaying the starting time of the secondary high-pressure pump; the setting is that the time of starting the reverse osmosis second-stage high-pressure pump is delayed compared with other electrical appliances when the equipment automatically runs, so that the condition that the water pressure of the pre-treated effluent is insufficient when the equipment is just started is prevented.
B2, starting the secondary high-pressure pump in a water-shortage delay mode; this setting can avoid appearing because of under the unstable condition of water pressure, the problem that the second grade high-pressure pump frequently starts that X15 second grade lacks water float switch and arouses frequently beats.
B3, flushing time of a flushing electromagnetic valve; should set up to reverse osmosis equipment automatic operation, open the solenoid valve and carry out the washing time that directly washes after having operated a period of time, directly wash for the quick washing fall the interior fouling thing of reverse osmosis membrane, prevent that the membrane from blockking up.
B4, reverse osmosis working time; the setting is how long the reverse osmosis plant operates for a flush.
And 8, starting automatic operation, clicking the automatic operation by an operator, and entering a full-automatic operation state by the system according to the operation time set by the user.
FIGS. 1 to 6 are flow charts of the method for the automated operation of an ultrapure water installation, comprising the following components:
the water supply electromagnetic valve closes and opens water inlet and is controlled by the original water tank full water floating ball.
The raw water pump needs certain pressure for pretreatment filtration, the filtration effect is good, so a raw water pump needs to be added for pressurization, if the pressure is insufficient and the water inflow is insufficient, the rear high-pressure pump can suck substances intercepted in the pretreatment, and the reverse osmosis membrane is blocked.
The high-pressure pump is used for re-pressurizing the water pressure provided by the pretreatment to the pressure required by the system, and the pressure is generally 10 kilograms.
The first-stage flushing electromagnetic valve automatically sends a command of flushing the membrane when the equipment is started, desalinated water automatically flushes pollutants on the surface of the membrane, and the service life of the membrane is prolonged.
And a delivery pump for providing a point of use water volume.
And the alarm is triggered when equipment fails in operation and comprises a raw water pump heat alarm, a high-pressure pump heat alarm, an EDI pump heat alarm and a secondary high-pressure pump heat alarm.
And the second-stage high-pressure pump is used for re-pressurizing the water pressure provided by the first-stage pure water tank to the pressure required by the second-stage reverse osmosis system, wherein the pressure is generally 10 kilograms.
The second-stage flushing electromagnetic valve automatically sends a command of flushing the membrane when the equipment is started, so that the desalted water automatically flushes the pollutants on the surface of the membrane, and the service life of the membrane is prolonged.
The EDI pump also needs certain pressure when EDI equipment is worked, because the water in the second grade pure water case to EDI equipment pressure is not enough, so be used for giving second grade pure water pressurization in order to satisfy EDI and intake required pressure.
EDI working electromagnetic valve, after the water quality reaches the set number of mega, discharging the water into the ultra-pure water tank.
The EDI circulation electromagnetic valve returns the secondary pure water tank when the water output reaches the set value requirement, and returns the secondary pure water tank when the ultrapure water tank is full of water, so that the EDI is always in a working state, and electromigration regeneration is realized.
The EDI power supply provides a direct current power supply for the EDI water treatment module stack and can also be used as a direct current stabilized voltage supply.
The raw water tank is full of the water floating ball, the water inlet pressure of the pure water equipment is balanced, the equipment is ensured to operate stably, and the raw water electromagnetic valve is controlled to be opened and closed.
The original water tank lacks of water floating ball, the control equipment stops when the water supply is insufficient during operation, and the equipment is automatically started when the water level rises to a certain level.
The raw water pump is thermally protected, the running temperature of the raw water pump is monitored, and when the running temperature exceeds a certain temperature, the raw water pump is automatically stopped, so that the raw water pump is prevented from being damaged due to overheating.
The solution is that the reset time of the pressure switch is adjusted, if the pressure switch is a PLC program, a delay program can be added in the program, the PLC program is generally set within 20s-2min, if the frequent starting times within a certain time exceed 10-20 times, the system automatically stops working, and manual intervention is needed at this moment).
The quartz sand filter is used for filtering large-particle substances and colloidal substances in tap water.
The activated carbon filter absorbs residual chlorine, peculiar smell and the like in tap water.
Softening the filter, and adsorbing calcium and magnesium ions in the water by the resin.
The low-pressure protection switch has the function of protecting the high-pressure pump from starting and stopping due to insufficient pretreatment water outlet (the pressure switch is mechanical and can be reset in a short time, for example, the pressure switch is reset once in 1 second, a system is frequently started, and the high-pressure pump is damaged due to overweight load).
The high-pressure pump is subjected to thermal protection, the operating temperature of the first-stage high-pressure pump is monitored, and when the operating temperature exceeds a certain temperature, the high-pressure pump is automatically stopped, so that the first-stage high-pressure pump is prevented from being damaged due to overheating.
The first-stage high-pressure protection is used for preventing overhigh pressure caused by closing of concentrated water and closing of a pure water installation valve of the reverse osmosis equipment, and plays a role in protection. The solution is that the reset time of the pressure switch is adjusted, if the reset time is a PLC program, a delay program can be added into the program, the program is generally set to be within 20s-2min, and if the frequent start times exceed 10-20 times within a certain time, the system automatically stops working, and manual intervention is needed at the moment).
The pure water tank is full of water floating balls, the pure water tank is stopped when the primary reverse osmosis equipment is controlled to operate, and the pure water tank is automatically started when the water level drops to a certain value.
The dense water tank is full of water floating balls, when the first-stage reverse osmosis equipment is controlled to operate, the dense water tank is stopped when full of water, and the equipment is automatically started when the water level drops to a certain value.
The pure water tank lacks water floating ball, controls the pure water tank water supply system, stops the water supply system when lacking water, and starts the water supply system when the water level rises to a certain extent.
The heat protection of the delivery pump monitors the running temperature of the delivery pump, and when the running temperature exceeds a certain temperature, the automatic stop is carried out, so that the delivery pump is prevented from being damaged due to overheating.
The high-pressure protection of the delivery pump leads to the overhigh pressure in the delivery pipeline because the valve at the use point is closed, controls the start and stop of the delivery pump or opens the pressure release valve according to the process of the delivery pipeline, circulates and plays a role in protection.
The water-deficient floating ball of the second-level pure water tank controls the water supply system of the first-level pure water tank, when the water is deficient, the water supply system is stopped, and the water level rises to a certain extent to start the water supply system.
The secondary high-voltage protection switch prevents the over-high pressure caused by the closing of the concentrated water and the closing of the pure water installation valve of the reverse osmosis equipment, and plays a role in protection. The solution is that the reset time of the pressure switch is adjusted, if the reset time is a PLC program, a delay program can be added into the program, the program is generally set to be within 20s-2min, and if the frequent start times exceed 10-20 times within a certain time, the system automatically stops working, and manual intervention is needed at the moment).
And (4) protecting the EDI full water level, controlling the EDI equipment to run, stopping the ultrapure water tank when the water level is full, and automatically starting the equipment when the water level is reduced to a certain value.
The second-stage high-pressure pump is subjected to thermal protection, the operating temperature of the second-stage high-pressure pump is monitored, and when the operating temperature exceeds a certain temperature, the second-stage high-pressure pump is automatically stopped, so that the second-stage high-pressure pump is prevented from being damaged due to overheating.
The second-stage pure water tank full water floating ball controls the second-stage reverse osmosis equipment to operate, the pure water tank is stopped when full water, and the equipment is automatically started when the water level drops to a certain value.
The EDI water shortage liquid level switch controls the water supply system of the secondary pure water tank, when the water is in shortage, the water supply system is stopped, and the water supply system is started when the water level rises to a certain value.
The EDI high-voltage protection switch prevents the EDI from being blocked or the regulating valve from misoperation to cause overhigh pressure and plays a role in shutdown protection (the pressure switch is mechanical and can reset in a short time, for example, if the pressure switch resets once in 1 second, the system is frequently started to cause overweight damage of a raw water pump).
EDI pump thermal protection module monitors EDI pump operating temperature, when exceeding the uniform temperature, automatic shutdown prevents that the EDI pump from damaging because of overheated.
EDI pure water outlet circulation, EDI effluent flow direction is controlled by a water quality detection instrument, water quality reaches the standard and flows to the pure water tank, and water quality does not reach the standard and flows back to the secondary water tank.
And the raw water pump conveying switch controls a program command for starting the raw water pump.
And the delivery switch of the delivery pump controls the program command of starting the delivery pump.
And the secondary reverse osmosis starting switch controls a program command for starting the secondary reverse osmosis host.
And the EDI starting switch controls the program command started by the EDI host.
Fig. 7 to 10 show an alarm device in operation of an ultrapure water apparatus, which comprises the following modules:
and clearing the first-level count to clear the starting times of the first-level high-pressure pump.
And displaying the raw water pump by a popup window, and displaying the overhigh pressure of the raw water pump by the popup window, thereby providing a customer solution.
The automatic zero clearing of the first-stage reverse osmosis is used for calculating the zero clearing starting times of the first-stage reverse osmosis high-pressure pump within one hour as long as the first-stage reverse osmosis high-pressure pump is not repeatedly started for 10 times.
The over-pressure indicator light is used for displaying whether the pre-treatment pressure is over-high.
The high-pressure pump water shortage indicator lamp displays that a pressure gauge in front of the high-pressure pump has no indicator lamp for pressure.
And the high-pressure indicator lamp of the high-pressure pump displays whether the pressure behind the high-pressure pump is high or not.
And (5) giving an alarm when the pressure of the raw water pump is too high, and displaying an alarm icon when the pressure of the raw water pump is too high.
And the high-pressure indicator lamp of the high-pressure pump displays an alarm icon when the pressure of the first-stage high-pressure pump is too high.
The high-pressure indicator light of the conveying pump displays the over-high pressure of the conveying pump.
And the delivery pump is over-heated to give an alarm, and an alarm icon is displayed when the temperature of the delivery pump is too high.
And (4) displaying a popup window of the delivery pump, wherein the popup window displays that the pressure of the delivery pump is too high, and a customer solution is provided.
And clearing the conveying pump count to clear the restarting times of the conveying pump.
The delivery pump is automatically cleared to zero to calculate the number of times of starting the delivery pump within one hour, which can be cleared as long as the delivery pump is not repeatedly started for 10 times.
And the high-pressure indicator lamp is used for indicating whether the pressure behind the second-stage high-pressure pump is high or not.
The high-pressure pump popup window displays that the secondary reverse osmosis pressure is high, the high-pressure pump is frequently restarted, and a customer solution is provided.
The second-stage high-pressure pump is automatically reset to be used for calculating the number of times of zero clearing starting of the second-stage high-pressure pump within one hour as long as the second-stage high-pressure pump is not repeatedly started for 10 times.
And clearing the secondary counter to clear the starting times of the secondary high-pressure pump.
And (5) giving an over-heat alarm to the high-pressure pump, and displaying a second-stage raw water pump heat protection alarm icon.
The EDI high pressure pilot lamp shows that EDI pressure is too high pilot lamp.
And displaying the EDI popup window to display an alarm icon when the EDI pressure is too high.
The EDI is automatically cleared to zero to calculate the number of times that the EDI delivery pump is cleared to start as long as the EDI delivery pump is not repeatedly started for 10 times within one hour.
And resetting the EDI count to clear the starting times of the EDI pump.
And (4) carrying out overheat alarm on the EDI delivery pump, and displaying an EDI pump heat protection alarm icon.
And (5) alarming the overheating of the raw water pump and displaying a heat protection alarm icon of the raw water pump.
And (4) alarming the overheating of the high-pressure pump, and displaying a first-level high-pressure pump heat protection alarm icon.
FIG. 11 is a schematic view showing the construction of an ultrapure water apparatus, comprising: a signal output module comprising X0X 1X 7X 10X 11X 12.
And the signal receiving module is connected to a signal input point of the PLC controller and arranged in X rows at the upper end of the PLC.
And the relevance program module inputs corresponding commands into the Y row through a program. For example, when the original water tank is full of water floating ball X0 and the PLC receives the X0 full water signal, the corresponding X0 signal lamp on the PLC will light up, then the command of closing the electromagnetic valve is input to the Y0 signal lamp, and then the command is input to the Y0 electromagnetic valve by Y0.
And the device hardware executes related command operation through the signals sent by the Y row. For example, the Y0 solenoid valve is closed after receiving a signal from the Y0 signal lamp, and the Y0 solenoid valve is opened when the Y0 signal lamp is turned off.
By adopting the method, the service efficiency of the reverse osmosis equipment can be maximized according to the equipment characteristics and the pipeline installation process, the service life of the equipment pump can be protected by the most effective method, the service life of the reverse osmosis membrane is protected, and technicians can debug the equipment to the optimal running state after each set of equipment leaves a factory.
After the equipment is debugged, the customer only needs to click to automatically operate on the spot, and does not need to manually operate the customer at all. The equipment is started when the equipment is needed to operate, and the operation is cancelled when the equipment is not needed. Even if the equipment has a fault, the position of the fault can be displayed on the touch screen visually, and the fault can be solved more effectively.
When the equipment pump breaks down, the program can count the problem, and when the certain number of times is reached, the program sends out an alarm command and stops the operation of the pump, so that the pump is protected from being damaged due to excessive frequent starting times.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (2)
1. An automatic operation method of ultrapure water equipment is characterized by comprising the following steps:
step 1, equipment enters water, raw water enters a raw water tank from a water inlet pipeline, a water feeding electromagnetic valve is arranged on a water inlet pipe to control water inlet, a raw water tank full water floating ball and a raw water tank water shortage floating ball are arranged in the raw water tank, and the water feeding electromagnetic valve is controlled by the raw water tank full water floating ball; when the original water tank full water floating ball has no signal, the water supply electromagnetic valve is opened to supply water, and when the original water tank full water floating ball gives a signal, the water supply electromagnetic valve is closed;
step 2, starting pretreatment, wherein a raw water pump is connected to a water outlet pipe of a raw water tank, and a raw water pump delivery switch, a pretreatment pressure overhigh switch and a raw water pump thermal protection module are arranged on the raw water pump; determining whether the raw water tank is lack of water or not through a raw water tank water shortage floating ball signal, wherein the raw water tank water shortage floating ball signal-free indicates water shortage, a raw water pump is not started when the raw water tank is lack of water, a raw water pump conveying switch is turned on, the raw water pump is started, the raw water pump pumps the raw water out of the raw water tank, and the raw water sequentially passes through a quartz sand filter, an activated carbon filter, a softening filter and a precision filter; the pretreatment pressure overhigh switch monitors the water outlet pressure of the raw water pump, and the raw water pump stops when the water outlet pressure of the raw water pump is overhigh; the raw water pump thermal protection module monitors the running temperature of the raw water pump, and the raw water pump is stopped when the temperature is too high;
step 3, starting the primary reverse osmosis host, enabling the water pressure of the water to be reduced after the water passes through the filter in the step 2, conveying the water filtered in the step 2 to the primary reverse osmosis membrane by the pressurization of the high-pressure pump, enabling the pure water passing through the primary reverse osmosis membrane to enter a primary pure water tank, enabling the concentrated water passing through the primary reverse osmosis membrane to enter a concentrated water tank, and arranging a primary flushing electromagnetic valve between the primary reverse osmosis membrane and the concentrated water tank; before the water filtered in the step 2 enters the high-pressure pump, the water yield is monitored through a low-pressure protection switch, the high-pressure pump is not started when the water yield is insufficient, and the high-pressure pump is started when the water yield is sufficient; the high-pressure pump is provided with a primary high-pressure protection module and a high-pressure pump thermal protection module, the high-pressure pump stops when the primary high-pressure protection module monitors that the water outlet pressure of the high-pressure pump exceeds a certain value, and the high-pressure pump stops when the high-pressure pump thermal protection module monitors that the operating temperature of the high-pressure pump is overhigh;
step 4, starting the secondary reverse osmosis host, arranging a secondary high-pressure pump on a water outlet pipe of the primary pure water tank, conveying water in the primary pure water tank to the secondary reverse osmosis membrane by the secondary high-pressure pump, filtering by the secondary reverse osmosis membrane, allowing pure water to enter the secondary pure water tank, returning concentrated water to the original water tank, and arranging a secondary flushing electromagnetic valve between the secondary reverse osmosis membrane and the original water tank; a pure water tank water shortage floating ball and a pure water tank water full floating ball are arranged in the first-stage pure water tank, and a second-stage high-pressure pump heat protection module and a second-stage high-pressure protection switch are arranged on the second-stage high-pressure pump; the water purification tank full water floating ball in the first-stage water purification tank controls the start of the pretreatment host and the first-stage reverse osmosis host, the pretreatment host and the first-stage reverse osmosis host stop when the water purification tank full water floating ball has a signal, and the pretreatment host and the first-stage reverse osmosis host continuously run when the water purification tank full water floating ball has no signal; the pure water tank water-deficient floating ball in the first-stage pure water tank controls the starting of the second-stage high-pressure pump, the second-stage high-pressure pump is stopped when the pure water tank water-deficient floating ball has no signal, and the second-stage high-pressure pump is started when the pure water tank water-deficient floating ball has a signal; when the secondary high-pressure protection switch monitors that the water outlet pressure of the secondary high-pressure pump exceeds a certain value, the secondary high-pressure pump is stopped, and when the secondary high-pressure pump thermal protection module monitors that the operating temperature of the secondary high-pressure pump is overhigh, the secondary high-pressure pump is stopped;
step 5, starting the reverse osmosis water outlet and the EDI host, wherein an EDI delivery pump is arranged on a water outlet pipe of the second-stage pure water tank, the EDI delivery pump conveys water in the second-stage pure water tank out and sequentially passes through a precision filter, an ultraviolet sterilization module and an online water quality monitoring module, an EDI working electromagnetic valve and an EDI circulating electromagnetic valve are arranged on the online water quality monitoring module, the online water quality monitoring module monitors that the water quality reaches a set value and then discharges the water into the ultra-pure water tank through the EDI working electromagnetic valve, the online water quality monitoring module monitors that the water quality does not reach the set value and then discharges the water back to the second-stage pure water tank through the EDI circulating electromagnetic valve, and when the ultra-pure water tank is full of water; a second-stage pure water tank full water floating ball and an EDI water-shortage liquid level switch are arranged in the second-stage pure water tank; the full water floating ball of the second-stage pure water tank controls the start of the pretreatment host and the second-stage reverse osmosis host, the pretreatment host and the second-stage reverse osmosis host are stopped when the full water floating ball of the second-stage pure water tank has a signal, and the pretreatment host and the second-stage reverse osmosis host continuously run when the full water floating ball of the second-stage pure water tank has no signal; the EDI water shortage liquid level switch controls the start and stop of the EDI delivery pump; the EDI conveying pump is provided with an EDI pump thermal protection module and an EDI high-voltage protection switch, when the EDI high-voltage protection switch monitors that the water pressure of the EDI conveying pump exceeds a certain value, the EDI conveying pump stops, and when the EDI pump thermal protection module monitors that the operating temperature of the EDI pump is overhigh, the EDI conveying pump stops;
step 6, conveying the water storage tank and the pure water, wherein a water outlet pipe of the ultra-pure water tank is provided with a conveying pump, the conveying pump conveys the water in the ultra-pure water tank to a use point, and a pipeline between the conveying pump and the use point is sequentially provided with an ultraviolet sterilization module, polishing resin and a 0.22 mu m filter; an ultrapure water tank full water floating ball and an ultrapure water tank water shortage floating ball are arranged in the ultrapure water tank, the EDI host machine is stopped when the ultrapure water tank full water floating ball has a signal, and the EDI host machine continuously operates when the ultrapure water tank full water floating ball has no signal; when the water-deficient floating ball of the ultrapure water tank has no signal, the delivery pump is stopped, and when the water-deficient floating ball of the ultrapure water tank has a signal, the delivery pump is started; the conveying pump is provided with a conveying pump high-pressure protection switch, and the conveying pump is controlled to stop when the conveying pump high-pressure protection switch monitors that the water pressure of the conveying pump is too high;
and step 7, setting the running time,
A. setting first-stage reverse osmosis parameters:
a1, delaying the starting time of the high-pressure pump, wherein the delayed starting time is set as the time for the high-pressure pump to delay the starting time of other electrical appliances when the equipment automatically runs;
a2, starting the high-pressure pump in a water-shortage delayed mode;
a3, flushing time of a first-level flushing electromagnetic valve;
a4, the working time of the first-stage reverse osmosis is set as the time for which the first-stage reverse osmosis host runs and then is washed once;
B. setting secondary reverse osmosis parameters:
b1, delaying the starting time of the secondary high-pressure pump, wherein the delayed starting time is set as the time for the secondary high-pressure pump to delay the starting time of other electrical appliances when the equipment automatically runs;
b2, starting the secondary high-pressure pump in a water-shortage delay mode;
b3, flushing time of a secondary flushing electromagnetic valve;
b4, secondary reverse osmosis working time; the device is flushed once after the secondary reverse osmosis equipment operates for a specified time;
and 8, starting automatic operation, clicking the automatic operation by an operator, and entering a full-automatic operation state by the system according to the set operation time.
2. The automated operation method of an ultrapure water apparatus as recited in claim 1, wherein: a water-full floating ball of the concentrated water tank is arranged in the concentrated water tank, the primary reverse osmosis host continuously operates when the water-full floating ball of the concentrated water tank has no signal, and the primary reverse osmosis host stops when the water-full floating ball of the concentrated water tank has a signal.
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| CN115057561A (en) * | 2022-07-23 | 2022-09-16 | 江西群泰科技有限公司 | Preparation and surface treatment method for high-cleanliness ultrasonic cleaning pure water |
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