CN111562351A - Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water - Google Patents
Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water Download PDFInfo
- Publication number
- CN111562351A CN111562351A CN202010465059.3A CN202010465059A CN111562351A CN 111562351 A CN111562351 A CN 111562351A CN 202010465059 A CN202010465059 A CN 202010465059A CN 111562351 A CN111562351 A CN 111562351A
- Authority
- CN
- China
- Prior art keywords
- water
- control valve
- pipe
- reverse osmosis
- microporous filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to an automatic monitoring device and a method for a reverse osmosis device inlet water quality pollution index, wherein the monitoring device comprises a water sample storage tank, a microporous filter, a metering cylinder, a backwashing water tank and a pipeline connected between the monitoring device and the backwashing water tank, the surface of a microporous filter membrane is washed by a backwashing pipe and a backwashing pump, impurities such as particles, colloid, bacteria and the like on the surface of the microporous filter membrane are removed, the microporous filter membrane in the microporous filter does not need to be replaced after each measurement, the measurement interval time of the inlet water quality pollution index is shortened, a change curve can be drawn after data are collected by a computer, the pollution tendency of reverse osmosis inlet water is judged by observing the change curve, whether a pretreatment system of the reverse osmosis device is normal or not is diagnosed in time, the automatic monitoring of the reverse osmosis device inlet water quality pollution index is realized, the labor input is.
Description
Technical Field
The invention relates to the field of reverse osmosis equipment inlet water quality pollution index determination, in particular to an automatic monitoring device and method for reverse osmosis equipment inlet water quality pollution index.
Background
The water quality pollution index (SDI) is one of important indexes for measuring the water quality of inlet water of the reverse osmosis device and is a water quality index which must be monitored in daily operation of the reverse osmosis device. At present, the determination method is a regular off-line determination, i.e. a water sample to be determined is taken at intervals, and passes through a microporous filter membrane with the diameter of 47mm and the pore diameter of 0.45 μm under the constant surface pressure of 207kPa, impurities such as particles, colloids and bacteria with the diameter of more than 0.45 μm in the water sample are all intercepted on the membrane surface, the flow rate of the water passing through the filter membrane is reduced, and according to the time required for collecting 500mL of water sample initially permeating through the filter membraneγ 0And filtering for a period of timeγThen collecting 500mL of water sample for a required timeγ 1Thereby calculating the pollution index of the water sample. The method has the defects that after each measurement, a new microporous filter membrane needs to be replaced manually, the time and labor are consumed, the cost is increased, continuous monitoring cannot be realized, and leakage, bias flow and unevenness of the microporous filter membrane are easily caused when the microporous filter provided with the microporous filter membrane is frequently disassembled. Due to the defects, the interval time for measuring the water quality pollution indexes of the inlet water of reverse osmosis equipment of many thermal power plants is long, generally more than 3 hours, and the reverse osmosis device cannot be found in time when the pollution degree is high. Therefore, in view of the above technical defects, it is necessary to develop an automatic monitoring device and method for the intake water quality pollution index of reverse osmosis equipment to shorten the measurement interval time of the intake water quality pollution index and improve the quality of water treatment.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic monitoring device and method for the water quality pollution index of the inlet water of reverse osmosis equipment.
The specific contents are as follows: the utility model provides an automatic monitoring devices of reverse osmosis equipment quality of water pollution index of intaking, the device include water sample bin, microporous filter, a measuring cylinder, backwash water tank and connecting line, characterized by:
the water sample storage tank is communicated with a water inlet main pipe of the reverse osmosis equipment through a sampling pipe, a control valve A is communicated with the sampling pipe in series, a first emptying pipe is communicated with the bottom of the water sample storage tank in series, a control valve B is communicated with the first emptying pipe in series, a main water outlet pipe is communicated with the bottom of the water sample storage tank, a water feed pump, a control valve C, a pressure stabilizing valve, a check valve and a control valve D are sequentially communicated with the main water outlet pipe in series from one end of the water sample storage tank, and a pressure gauge is communicated with the main water outlet pipe between the check valve and the pressure stabilizing valve;
a filter pipe is communicated between the metering cylinder and the total water outlet pipe, the filter pipe is communicated on the total water outlet pipe between the control valve D and the check valve, a control valve G, a microporous filter and a control valve E are sequentially communicated in series from one end of the filter pipe where the metering cylinder is located, a microporous filter membrane is arranged in the microporous filter, a second emptying pipe is also communicated on the filter pipe between the microporous filter and the control valve G, a control valve F is communicated in series on the second emptying pipe, a third emptying pipe is communicated at the bottom of the metering cylinder, and a control valve H is communicated in series on the third emptying pipe;
the backwashing water tank is communicated with a filter pipe between the microporous filter and the control valve G through a backwashing pipe, and a backwashing pump and a control valve I are sequentially connected in series on the backwashing pipe from one end where the backwashing water tank is located.
Preferably, the material of the microporous filter membrane arranged in the microporous filter is a mixed membrane of hydrophilic nitrocellulose and cellulose acetate.
Preferably, the backwashing water contained in the backwashing water tank is water treated by the reverse osmosis equipment.
Preferably, the first emptying pipe, the second emptying pipe and the third emptying pipe are communicated with a sewage discharge pipe.
Preferably, the free end of the main water outlet pipe is also communicated with a sewage discharge pipe.
Preferably, the maximum value of the measuring range of the pressure gauge is not less than 207 kPa.
Preferably, a liquid level sensor is arranged in the water sample storage tank.
Preferably, a liquid level sensor and a timer are arranged in the metering cylinder.
A monitoring method of the automatic monitoring device for the water quality pollution index of the inlet water of the reverse osmosis equipment comprises the following steps:
filling sample water into a water sample storage tank, opening a control valve A, closing a control valve B and a control valve C, and enabling the sample water in a water inlet mother pipe of the reverse osmosis equipment to enter the water sample storage tank through a sampling pipe and reach a preset liquid level height;
cleaning the main water outlet pipe, closing the control valve A, opening the control valve C, the pressure stabilizing valve, the check valve and the control valve D after the liquid level in the water sample storage tank reaches a preset height, closing the control valve E, then opening the water feeding pump, flushing the main water outlet pipe by the sample water, and finally discharging the sample water through the control valve D for at least 2 minutes;
③ after the total outlet pipe is washed, closing the control valve D, opening the control valve E and the control valve G, closing the control valve F, the control valve H and the control valve I, adjusting the pressure stabilizing valve to make the indication value of the pressure gauge 207kPa, allowing the sample water to enter the microporous filter through the control valve E, filtering the sample water by the microporous filter, and then entering the measuring cylinder, and simultaneously starting recording the volume of the sample water in the measuring cylinder and the corresponding water injection time, when the volume of the sample water in the measuring cylinder reaches 500mL, the corresponding water injection time isγ 0Second;
④ when the volume of the sample water in the measuring cylinder reaches 500mL, the control valve G is closed, the control valve F is opened, the control valve H is opened to empty the sample water in the measuring cylinder, the sample water filtered by the microporous filter is discharged through the control valve F, and the time interval of the sample water filtered by the microporous filter is recordedγThe method comprises the following steps of (1) taking minutes;
⑤ when filtering the intervalγWhen the volume of the sample water in the measuring cylinder reaches 500mL, the corresponding water injection time is set asγ 1Second;
closing the control valve G and the water feeding pump after the volume of the sample water in the metering cylinder reaches 500mL again, opening the backwashing pump, the control valve I, the control valve D and the control valve H, backwashing the microporous filter after backwashing water in the backwashing water tank passes through the control valve I, removing impurities such as particles, colloid and bacteria on the surface of a microporous filter membrane in the microporous filter, finally discharging the impurities through the control valve D, and emptying the sample water in the metering cylinder through the control valve H;
seventhly, the backwashing pump and the control valve I are closed, the control valve F and the control valve B are opened, residual water in the microporous filter and the filter pipe is discharged through the control valve F, and water in the water sample storage tank is emptied through the control valve B;
calculating the value of the water quality pollution index of the inlet water of the reverse osmosis equipment by using a calculation formula, wherein the larger the value is, the more serious the pollution of the inlet water quality of the reverse osmosis equipment is;
ninthly, repeating the steps of (i) - (v), collecting data of all the values through a computer, drawing a change curve, and observing the change curve to judge the pollution tendency of the water quality of the water inlet of the reverse osmosis equipment.
The invention has the beneficial technical effects that:
the invention relates to an automatic monitoring device for the water quality pollution index of reverse osmosis equipment, wherein the monitoring device comprises a water sample storage tank, a microporous filter, a metering cylinder, a backwashing water tank and a pipeline connected between the water sample storage tank and the microporous filter, the surface of a microporous filter membrane is washed by a backwashing pipe and a backwashing pump to remove impurities such as particles, colloid, bacteria and the like on the surface of the microporous filter membrane, the microporous filter membrane in the microporous filter does not need to be replaced after each measurement, the measurement interval time of the water quality pollution index is shortened, a change curve can be drawn after data is collected by a computer, the pollution tendency of reverse osmosis inlet water is judged by observing the change curve, whether a pretreatment system of the reverse osmosis equipment is normal or not is diagnosed in time, the automatic continuous monitoring of the water quality pollution index of the reverse osmosis equipment is realized, the manpower input is.
Drawings
FIG. 1 is a schematic diagram of the connection relationship of an automatic monitoring device for the water quality pollution index of the inlet water of a reverse osmosis device;
FIG. 2 is a graph of the change of a power plant A within a certain 24 h;
FIG. 3 is a graph showing the variation of a power plant B within a certain 24 h;
in the figure: 11. the reverse osmosis device comprises a reverse osmosis device water inlet main pipe, 12 sampling pipes, 13 control valves A, 14 water sample storage tanks, 15 first emptying pipes, 16 control valves B, 17 water feed pumps, 18 control valves C, 19 pressure stabilizing valves, 20 pressure gauges, 21 check valves, 22 total water outlet pipes, 23 control valves D, 24 control valves E, 25 microporous filters, 26 second emptying pipes, 27 filter pipes, 28 control valves G, 29 control valves I, 30 backwashing pumps, 31 metering cylinders, 32 third emptying pipes, 33 control valves H, 34 backwashing pipes, 35 backwashing water tanks and 36 control valves F.
Detailed Description
In the first embodiment, referring to fig. 1, an automatic monitoring device for the water quality pollution index of inlet water of reverse osmosis equipment comprises a water sample storage tank, a microporous filter, a metering cylinder, a backwashing water tank and pipelines connected between the water sample storage tank and the microporous filter;
the water sample storage tank is communicated with a water inlet main pipe of the reverse osmosis equipment through a sampling pipe, a control valve A is communicated with the sampling pipe in series, a first emptying pipe is communicated with the bottom of the water sample storage tank in series, a control valve B is communicated with the first emptying pipe in series, a liquid level sensor is arranged in the water sample storage tank and used for measuring the liquid level in the water tank, a main water outlet pipe is communicated with the bottom of the water sample storage tank, a water feeding pump, a control valve C, a pressure stabilizing valve, a check valve and a control valve D are sequentially communicated with the main water outlet pipe in series from one end of the water sample storage tank, and a pressure gauge is communicated with the main water outlet pipe between the check valve and the pressure stabilizing valve; the maximum value of the measuring range of the pressure gauge is not less than 207kPa, and the requirement of using equipment is met.
A filter pipe is communicated between the metering cylinder and the total water outlet pipe, the filter pipe is communicated on the total water outlet pipe between the control valve D and the check valve, a control valve G, a microporous filter and a control valve E are sequentially communicated in series from one end of the filter pipe where the metering cylinder is located, a microporous filter membrane is arranged in the microporous filter, a second emptying pipe is also communicated on the filter pipe between the microporous filter and the control valve G, a control valve F is communicated in series on the second emptying pipe, a third emptying pipe is communicated at the bottom of the metering cylinder, and a control valve H is communicated in series on the third emptying pipe; a liquid level sensor and a timer are arranged in the metering cylinder and are respectively used for recording the volume of liquid in the metering cylinder and the time required for injecting the liquid with the corresponding volume;
the backwashing water tank is communicated with a filter pipe between the microporous filter and the control valve G through a backwashing pipe, and a backwashing pump and a control valve I are sequentially connected in series on the backwashing pipe from one end where the backwashing water tank is located.
The material of the microporous filter membrane arranged in the microporous filter is a mixed membrane of white hydrophilic nitrocellulose and cellulose acetate.
The backwashing water contained in the backwashing water tank is product water treated by the reverse osmosis equipment, so that the water quality of the backwashing water is ensured, the backwashing effect is ensured, and the monitoring error is reduced.
The first emptying pipe, the second emptying pipe and the third emptying pipe are all communicated to the sewage discharge pipe, and the free end of the total water outlet pipe is also communicated to the sewage discharge pipe. The sample water is intensively discharged into a sewage discharge pipe, so that random discharge is avoided.
In a second embodiment, referring to fig. 1, a monitoring method using the automatic monitoring device for the reverse osmosis equipment inlet water quality pollution index according to the first embodiment includes the following steps:
filling sample water into a water sample storage tank, opening a control valve A, closing a control valve B and a control valve C, and enabling the sample water in a water inlet mother pipe of the reverse osmosis equipment to enter the water sample storage tank through a sampling pipe and reach a preset liquid level height;
cleaning the main water outlet pipe, closing the control valve A, opening the control valve C, the pressure stabilizing valve, the check valve and the control valve D after the liquid level in the water sample storage tank reaches a preset height, closing the control valve E, then opening the water feeding pump, flushing the main water outlet pipe by the sample water, and finally discharging the sample water through the control valve D for at least 2 minutes;
③ after the total outlet pipe is washed, closing the control valve D, opening the control valve E and the control valve G, closing the control valve F, the control valve H and the control valve I, adjusting the pressure stabilizing valve to make the indication value of the pressure gauge 207kPa, allowing the sample water to enter the microporous filter through the control valve E, filtering the sample water by the microporous filter, and then entering the measuring cylinder, and simultaneously starting recording the volume of the sample water in the measuring cylinder and the corresponding water injection time, when the volume of the sample water in the measuring cylinder reaches 500ml, the corresponding water injection time isγ 0Second;
④ when the volume of the sample water in the measuring cylinder reaches 500mL, the control valve G is closed, the control valve F is opened, the control valve H is opened to empty the sample water in the measuring cylinder, the sample water filtered by the microporous filter is discharged through the control valve F, and the time interval of the sample water filtered by the microporous filter is recordedγThe method comprises the following steps of (1) taking minutes;γthe value of (A) is generally 5min, 10min or 15min, ifγ 0The change curve is increased rapidly, and the filtering interval time is further reducedγSimultaneously checking the reverse osmosis pretreatment system;
⑤ when filtering the intervalγWhen the volume of the sample water in the measuring cylinder reaches 500mL, the corresponding water injection time is set asγ 1Second;
closing the control valve G and the water feeding pump after the volume of the sample water in the metering cylinder reaches 500mL again, opening the backwashing pump, the control valve I, the control valve D and the control valve H, backwashing the microporous filter after backwashing water in the backwashing water tank passes through the control valve I, removing impurities such as particles, colloid and bacteria on the surface of a microporous filter membrane in the microporous filter, finally discharging the impurities through the control valve D, and emptying the sample water in the metering cylinder through the control valve H; removing impurities such as particles, colloid, bacteria and the like on the surface of the microporous filter membrane through backwashing, wherein the microporous filter membrane of the microporous filter does not need to be replaced after each measurement;
seventhly, the backwashing pump and the control valve I are closed, the control valve F and the control valve B are opened, residual water in the microporous filter and the filter pipe is discharged through the control valve F, and water in the water sample storage tank is emptied through the control valve B;
calculating the value of the water quality pollution index of the inlet water of the reverse osmosis equipment by using a calculation formula, wherein the larger the value is, the more serious the pollution of the inlet water quality of the reverse osmosis equipment is;
ninthly, repeating the steps of (i) - (iii), realizing continuous monitoring of the water quality pollution index of the inlet water of the reverse osmosis equipment, collecting data of all values through a computer, drawing a change curve, observing the change curve, judging the pollution tendency of the water quality of the inlet water of the reverse osmosis equipment, and timely diagnosing whether a pretreatment system of the reverse osmosis equipment is normal.
In a third embodiment, referring to fig. 1 to 3, in order to make the purpose, technical scheme and technical effect of the present invention clearer and clearer, the contents of the present invention are further described in detail with reference to the accompanying drawings and specific embodiments; it is to be understood that the specific embodiments described herein are merely illustrative of the invention and not restrictive thereof; it should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.
A power plant adopts the secondary treatment effluent of an urban sewage treatment plant as a boiler make-up water source, and a pretreatment system of reverse osmosis equipment is as follows: the invention relates to a device and a method for automatically monitoring the water quality pollution index of inlet water of a reverse osmosis device, wherein the time interval for measuring the water quality pollution index of inlet water of the reverse osmosis device is shortened to 20min from the original 24 h. After the equipment is used, see fig. 2 for a certain 24h change diagram of the a plant.
By analyzing the change curve of the power plant A in a certain 24h, the rising trend in a short period is found, the operation condition of the ultrafiltration system needs to be adjusted in time, and reverse osmosis inflow water is reduced.
After the automatic monitoring device and the automatic monitoring method for the water quality pollution index of the inlet water of the reverse osmosis equipment are adopted, the chemical cleaning period of a membrane element of the reverse osmosis equipment is prolonged by 2-3 times, and the water pollution tendency of the reverse osmosis equipment is effectively reduced.
The power plant B adopts the circulating cooling water to discharge sewage as a boiler makeup water source, and a pretreatment system of reverse osmosis equipment comprises: the sewage discharged by the circulating cooling water → the pretreatment mechanical accelerated clarification tank → the double-medium filter → the ultrafiltration cartridge filter → the ultrafiltration device → the ultrafiltration water tank → the ultrafiltration water pump, and after the automatic monitoring device and the method for the intake water quality pollution index of the reverse osmosis equipment are adopted, the measurement interval time of the intake water quality pollution index of the reverse osmosis equipment is shortened to 15min from the original 8 h. After the equipment is used, the graph of the change of the B power plant within a certain 24h is shown in FIG. 3.
Through analyzing the change curve of the power plant B in a certain 24h, the water quality pollution index of the inlet water of the reverse osmosis equipment in a certain time period is obviously increased, and the reverse osmosis equipment is determined to be rapidly polluted. This factory organizes personnel investigation reason immediately, and it is very fast to discover that preliminary treatment machinery accelerates the clarifier load of intaking and changes, and the turbidity of going out water risees to some extent, through reducing reverse osmosis equipment earlier and supplying water the rate of recovery, stabilizes machinery again and accelerates the clarifier load of intaking, reduces reverse osmosis and intakes, treats the decline back, improves the rate of recovery of supplying water again, has avoided reverse osmosis equipment's further pollution.
Claims (9)
1. The utility model provides an automatic monitoring devices of reverse osmosis equipment quality of water pollution index of intaking, the device include water sample bin, microporous filter, a measuring cylinder, backwash water tank and connecting line, characterized by:
the water sample storage tank is communicated with a water inlet main pipe of the reverse osmosis equipment through a sampling pipe, a control valve A is communicated with the sampling pipe in series, a first emptying pipe is communicated with the bottom of the water sample storage tank in series, a control valve B is communicated with the first emptying pipe in series, a main water outlet pipe is communicated with the bottom of the water sample storage tank, a water feed pump, a control valve C, a pressure stabilizing valve, a check valve and a control valve D are sequentially communicated with the main water outlet pipe in series from one end of the water sample storage tank, and a pressure gauge is communicated with the main water outlet pipe between the check valve and the pressure stabilizing valve;
a filter pipe is communicated between the metering cylinder and the total water outlet pipe, the filter pipe is communicated on the total water outlet pipe between the control valve D and the check valve, a control valve G, a microporous filter and a control valve E are sequentially communicated in series from one end of the filter pipe where the metering cylinder is located, a microporous filter membrane is arranged in the microporous filter, a second emptying pipe is also communicated on the filter pipe between the microporous filter and the control valve G, a control valve F is communicated in series on the second emptying pipe, a third emptying pipe is communicated at the bottom of the metering cylinder, and a control valve H is communicated in series on the third emptying pipe;
the backwashing water tank is communicated with a filter pipe between the microporous filter and the control valve G through a backwashing pipe, and a backwashing pump and a control valve I are sequentially connected in series on the backwashing pipe from one end where the backwashing water tank is located.
2. The automatic monitoring device for the water quality pollution index of the inlet water of the reverse osmosis equipment as claimed in claim 1, which is characterized in that: the microporous filter membrane arranged in the microporous filter is made of a mixed membrane of hydrophilic nitrocellulose and cellulose acetate.
3. The automatic monitoring device for the intake water quality pollution index of the reverse osmosis equipment as claimed in claim 2, which is characterized in that: the backwashing water contained in the backwashing water tank is water treated by the reverse osmosis equipment.
4. The automatic monitoring device for the water quality pollution index of the inlet water of the reverse osmosis equipment as claimed in claim 3, which is characterized in that: the first emptying pipe, the second emptying pipe and the third emptying pipe are communicated with the sewage discharge pipe.
5. The automatic monitoring device for the water quality pollution index of the reverse osmosis equipment inlet water as claimed in claim 4, which is characterized in that: the free end of the total water outlet pipe is also communicated with a sewage discharge pipe.
6. The automatic monitoring device for the water quality pollution index of the inlet water of the reverse osmosis equipment as claimed in claim 5, which is characterized in that: the maximum value of the measuring range of the pressure gauge is not less than 207 kPa.
7. The automatic monitoring device for the intake water quality pollution index of the reverse osmosis equipment as claimed in claim 6, which is characterized in that: and a liquid level sensor is arranged in the water sample storage tank.
8. The automatic monitoring device for the intake water quality pollution index of the reverse osmosis equipment as claimed in claim 7, which is characterized in that: a liquid level sensor and a timer are arranged in the metering cylinder.
9. A method for monitoring the water quality pollution index of the reverse osmosis equipment inlet water by using the automatic monitoring device of the water quality pollution index of the reverse osmosis equipment inlet water, which comprises the following steps:
filling sample water into a water sample storage tank, opening a control valve A, closing a control valve B and a control valve C, and enabling the sample water in a water inlet mother pipe of the reverse osmosis equipment to enter the water sample storage tank through a sampling pipe and reach a preset liquid level height;
cleaning the main water outlet pipe, closing the control valve A, opening the control valve C, the pressure stabilizing valve, the check valve and the control valve D after the liquid level in the water sample storage tank reaches a preset height, closing the control valve E, then opening the water feeding pump, flushing the main water outlet pipe by the sample water, and finally discharging the sample water through the control valve D for at least 2 minutes;
③ after the total outlet pipe is flushed, the control valve D is closed, the control valve E is opened and the control is performedAnd (3) closing a valve G, closing a control valve F, a control valve H and a control valve I, adjusting a pressure stabilizing valve to enable the reading value of a pressure gauge to be 207kPa, enabling sample water to enter a microporous filter through a control valve E, filtering the sample water by the microporous filter and then entering a metering cylinder, starting the metering cylinder to record the volume of the sample water in the cylinder and corresponding water injection time, and when the volume of the sample water in the metering cylinder reaches 500mL, correspondingly injecting the water for the time of 207kPaγ 0Second;
④ when the volume of the sample water in the measuring cylinder reaches 500mL, the control valve G is closed, the control valve F is opened, the control valve H is opened to empty the sample water in the measuring cylinder, the sample water filtered by the microporous filter is discharged through the control valve F, and the time interval of the sample water filtered by the microporous filter is recordedγThe method comprises the following steps of (1) taking minutes;
⑤ when filtering the intervalγWhen the volume of the sample water in the measuring cylinder reaches 500mL, the corresponding water injection time is set asγ 1Second;
closing the control valve G and the water feeding pump after the volume of the sample water in the metering cylinder reaches 500mL again, opening the backwashing pump, the control valve I, the control valve D and the control valve H, backwashing the microporous filter after backwashing water in the backwashing water tank passes through the control valve I, removing impurities such as particles, colloid and bacteria on the surface of a microporous filter membrane in the microporous filter, finally discharging the impurities through the control valve D, and emptying the sample water in the metering cylinder through the control valve H;
seventhly, the backwashing pump and the control valve I are closed, the control valve F and the control valve B are opened, residual water in the microporous filter and the filter pipe is discharged through the control valve F, and water in the water sample storage tank is emptied through the control valve B;
calculating the value of the water quality pollution index of the inlet water of the reverse osmosis equipment by using a calculation formula, wherein the larger the value is, the more serious the pollution of the inlet water quality of the reverse osmosis equipment is;
ninthly, repeating the steps of (i) - (v), collecting data of all the values through a computer, drawing a change curve, and observing the change curve to judge the pollution tendency of the water quality of the water inlet of the reverse osmosis equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465059.3A CN111562351B (en) | 2020-05-28 | 2020-05-28 | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465059.3A CN111562351B (en) | 2020-05-28 | 2020-05-28 | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111562351A true CN111562351A (en) | 2020-08-21 |
| CN111562351B CN111562351B (en) | 2022-11-22 |
Family
ID=72073988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010465059.3A Active CN111562351B (en) | 2020-05-28 | 2020-05-28 | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111562351B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648718A (en) * | 2021-07-13 | 2021-11-16 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Sampling device with automatic backwashing system |
| CN115839868A (en) * | 2022-10-27 | 2023-03-24 | 山东冽泉环保工程咨询有限公司 | Anti-cleaning head matched with targeted sampling device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030098266A1 (en) * | 2001-09-07 | 2003-05-29 | Lih-Ren Shiue | Fully automatic and energy-efficient deionizer |
| JP2005131630A (en) * | 2003-10-29 | 2005-05-26 | Huabang Electronic Co Ltd | Method for washing reverse osmosis membrane, and waste water recovering method using this method |
| CN101672756A (en) * | 2008-09-09 | 2010-03-17 | 黄小雷 | Full-automatic pollution index value online monitoring instrument |
| CN104316653A (en) * | 2014-10-24 | 2015-01-28 | 安徽新力电业科技咨询有限责任公司 | Dynamic evaluation device and method for scale inhibition performances of reverse osmosis scale inhibitors |
| CN105668706A (en) * | 2016-03-01 | 2016-06-15 | 李秀 | Automatic front and back washing ultrafiltration reverse osmosis water purification system provided with water storage diaphragm pressure tank |
| US20160292795A1 (en) * | 2013-12-05 | 2016-10-06 | Mitsubishi Hitachi Power Systems, Ltd. | Charging device of circulating water utilization system and circulating-water utilization system |
| CN106124368A (en) * | 2016-08-30 | 2016-11-16 | 合众高科（北京）环保技术股份有限公司 | A kind of pollution index test device and method of testing thereof |
| CN106362598A (en) * | 2015-07-22 | 2017-02-01 | 成均馆大学校产学协力团 | Apparatus and method for continuously measuring membrane fouling index |
| KR101815932B1 (en) * | 2016-07-08 | 2018-01-09 | 한국건설기술연구원 | Fouling index measuring system of multi-channel using high pressure syringe pump of constant flow operation and membrane filter, and method for the same |
| CN108911222A (en) * | 2018-08-30 | 2018-11-30 | 浙江升蓝环保科技有限公司 | Film process equipment and its control method for Treated sewage reusing |
| CN109607685A (en) * | 2019-01-21 | 2019-04-12 | 西安热工研究院有限公司 | A kind of feed water by reverse osmosis feature pollution index measurement device and method |
| CN109740977A (en) * | 2019-03-14 | 2019-05-10 | 华北电力大学 | The evaluation method of Gas Generator Set carbon emission influence factor based on grey correlation analysis |
| CN110064302A (en) * | 2019-04-30 | 2019-07-30 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | A kind of honeycomb type denitrification catalyst SO2Oxygenation efficiency real-time on-line detecting method and device |
| CN110538550A (en) * | 2019-09-10 | 2019-12-06 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Cyclic regeneration method and device for power plant compressed air drying adsorbent |
| CN210037521U (en) * | 2019-05-30 | 2020-02-07 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | System for measuring density and pH value of slurry of desulfurization absorption tower |
| CN110954365A (en) * | 2019-12-18 | 2020-04-03 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Automatic backwashing system of steam sampling filter of thermal power plant |
| WO2020097410A1 (en) * | 2018-11-09 | 2020-05-14 | Lonza Ltd | System and method for cleaning membrane filters in-line in a water purification system |
-
2020
- 2020-05-28 CN CN202010465059.3A patent/CN111562351B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030098266A1 (en) * | 2001-09-07 | 2003-05-29 | Lih-Ren Shiue | Fully automatic and energy-efficient deionizer |
| JP2005131630A (en) * | 2003-10-29 | 2005-05-26 | Huabang Electronic Co Ltd | Method for washing reverse osmosis membrane, and waste water recovering method using this method |
| CN101672756A (en) * | 2008-09-09 | 2010-03-17 | 黄小雷 | Full-automatic pollution index value online monitoring instrument |
| US20160292795A1 (en) * | 2013-12-05 | 2016-10-06 | Mitsubishi Hitachi Power Systems, Ltd. | Charging device of circulating water utilization system and circulating-water utilization system |
| CN104316653A (en) * | 2014-10-24 | 2015-01-28 | 安徽新力电业科技咨询有限责任公司 | Dynamic evaluation device and method for scale inhibition performances of reverse osmosis scale inhibitors |
| CN106362598A (en) * | 2015-07-22 | 2017-02-01 | 成均馆大学校产学协力团 | Apparatus and method for continuously measuring membrane fouling index |
| CN105668706A (en) * | 2016-03-01 | 2016-06-15 | 李秀 | Automatic front and back washing ultrafiltration reverse osmosis water purification system provided with water storage diaphragm pressure tank |
| KR101815932B1 (en) * | 2016-07-08 | 2018-01-09 | 한국건설기술연구원 | Fouling index measuring system of multi-channel using high pressure syringe pump of constant flow operation and membrane filter, and method for the same |
| CN106124368A (en) * | 2016-08-30 | 2016-11-16 | 合众高科（北京）环保技术股份有限公司 | A kind of pollution index test device and method of testing thereof |
| CN108911222A (en) * | 2018-08-30 | 2018-11-30 | 浙江升蓝环保科技有限公司 | Film process equipment and its control method for Treated sewage reusing |
| WO2020097410A1 (en) * | 2018-11-09 | 2020-05-14 | Lonza Ltd | System and method for cleaning membrane filters in-line in a water purification system |
| CN109607685A (en) * | 2019-01-21 | 2019-04-12 | 西安热工研究院有限公司 | A kind of feed water by reverse osmosis feature pollution index measurement device and method |
| CN109740977A (en) * | 2019-03-14 | 2019-05-10 | 华北电力大学 | The evaluation method of Gas Generator Set carbon emission influence factor based on grey correlation analysis |
| CN110064302A (en) * | 2019-04-30 | 2019-07-30 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | A kind of honeycomb type denitrification catalyst SO2Oxygenation efficiency real-time on-line detecting method and device |
| CN210037521U (en) * | 2019-05-30 | 2020-02-07 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | System for measuring density and pH value of slurry of desulfurization absorption tower |
| CN110538550A (en) * | 2019-09-10 | 2019-12-06 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Cyclic regeneration method and device for power plant compressed air drying adsorbent |
| CN110954365A (en) * | 2019-12-18 | 2020-04-03 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Automatic backwashing system of steam sampling filter of thermal power plant |
Non-Patent Citations (4)
| Title |
|---|
| YAN WANG ET AL: "Transparent, Healable Elastomers with High Mechanical Strength and Elasticity Derived from Hydrogen-Bonded Polymer Complexes", 《ACS APPLIED MATERIALS & INTERFACES》 * |
| 燕敏: "污水处理自动控制系统的研究与实现", 《中国优秀硕士论文全文数据库 工程科技Ⅰ》 * |
| 牛犇: "城市中水回用中膜污染分析及对策", 《工业水处理》 * |
| 黄河雨等: "循环冷却排污水深度处理回用研究进展", 《应用化工》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648718A (en) * | 2021-07-13 | 2021-11-16 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Sampling device with automatic backwashing system |
| CN115839868A (en) * | 2022-10-27 | 2023-03-24 | 山东冽泉环保工程咨询有限公司 | Anti-cleaning head matched with targeted sampling device |
| CN115839868B (en) * | 2022-10-27 | 2024-01-12 | 山东冽泉环保工程咨询有限公司 | Back-cleaning head matched with target sampling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111562351B (en) | 2022-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100429744B1 (en) | Filtration Monitoring and Control System | |
| CN111562351B (en) | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water | |
| CN201330168Y (en) | High-capacity automatic distribution and processing system for seawater | |
| CN112730009A (en) | Pretreatment device and pretreatment method for chemical process on-line analyzer | |
| CN106370445B (en) | Ballast water for ship filter capability experimental provision | |
| CN214750211U (en) | Automatic water quality monitoring system | |
| CN111495195B (en) | Device and method for evaluating pollution blocking potential of water sample ultrafiltration membrane | |
| CN110954365A (en) | Automatic backwashing system of steam sampling filter of thermal power plant | |
| CN113075377B (en) | Intelligent water sample collection system and method for sewage orthophosphate meter | |
| CN213924176U (en) | Ozone heterogeneous catalytic oxidation comprehensive test platform | |
| CN209481652U (en) | A kind of on-line monitoring system of anaerobic reactor Inlet and outlet water volatile fatty acid | |
| CN209946132U (en) | Water quality integrated detection device with filtering unit | |
| CN208732760U (en) | Purifier | |
| CN210152635U (en) | Drilling fluid filtration loss measuring device | |
| CN207066818U (en) | Can self-cleaning nutrients in sea water pre-filtering preparation system | |
| CN203733018U (en) | Front-end water stabilizing device for detecting purification efficiency of water purifiers | |
| CN220556383U (en) | Sampling device with self-cleaning function for high-turbidity water quality detection | |
| CN114235659B (en) | Nuclear island water filter element performance test system | |
| CN214844663U (en) | MBR membrane testing arrangement | |
| CN216878783U (en) | Testing arrangement at dirty stifled position of short-term test RO membrane element | |
| CN112408576B (en) | Ozone heterogeneous catalytic oxidation comprehensive test platform and test method | |
| CN221046886U (en) | Self-cleaning system for industrial water on-line chemical meter pipeline | |
| CN220819766U (en) | Nuclear power water filter high temperature resistance test system | |
| JP2005013992A (en) | Safety testing method for hollow fiber membrane module | |
| CN219567751U (en) | Box-type integrated ultrafiltration water purifying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |