CN109319985B - Online cleaning descaling water treatment system - Google Patents
Online cleaning descaling water treatment system Download PDFInfo
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- CN109319985B CN109319985B CN201811354747.1A CN201811354747A CN109319985B CN 109319985 B CN109319985 B CN 109319985B CN 201811354747 A CN201811354747 A CN 201811354747A CN 109319985 B CN109319985 B CN 109319985B
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- condenser
- water treatment
- cleaning
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 215
- 238000004140 cleaning Methods 0.000 title claims abstract description 57
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 238000004064 recycling Methods 0.000 claims description 18
- 238000012806 monitoring device Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 7
- 238000003487 electrochemical reaction Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 3
- 229910001424 calcium ion Inorganic materials 0.000 claims description 3
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 241000195493 Cryptophyta Species 0.000 description 6
- 239000000306 component Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- -1 hydroxyl radicals Chemical class 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241001415288 Coccidae Species 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G2015/006—Arrangements for processing a cleaning fluid after use, e.g. filtering and recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses an on-line cleaning descaling water treatment system, which relates to the technical field of water treatment, and is used for cleaning a condenser and treating the water quality of circulating water in a heat exchange pipeline, and comprises the following components: the water treatment unit, the condenser and the filter separator are sequentially and circularly connected, and water flows from the condenser and flows into the water treatment unit for circulation through the filter separator. According to the invention, the service life of the rubber ball is prolonged by cleaning the inner wall of the condenser through the rubber ball by utilizing the ball dispenser and the filter separator at regular intervals, so that the heat exchange efficiency of the condenser is improved, and meanwhile, the circulating cooling water is sucked and descaled through the matching of the electrochemical reactor and the precise filter, the service life of the rubber ball is prolonged, and the system is fully automatically adjusted to operate in two working modes of rubber ball cleaning and water quality treatment through monitoring the working state of the condenser in real time, so that the maintenance cost is low, the water quality is pollution-free, the environment is friendly, and the application prospect is wide.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to an online cleaning and descaling water treatment system.
Background
The circulating cooling water system is generally an open circulating system, and because air in the cooling tower fully contacts water, salt dirt formed by evaporation, splashing, leakage and concentration of the cooling water and dust in the atmosphere can be continuously mixed into the circulating cooling water, so that the problems of scaling, bacteria and algae breeding, pipeline blockage and the like in the system are caused.
The problems are particularly serious in condenser pipelines of the circulating water system, a rubber ball cleaning device is generally adopted to physically clean the heat exchange pipeline inside the condenser, scale and biological slime attached to the wall of the heat exchange pipeline of the condenser are scrubbed and cleaned through the rubber ball to effectively reduce the risk of system scaling and pipeline blockage, but if proper water quality treatment measures are not adopted along with long-term use of the condenser, the continuous evaporation and concentration of circulating cooling water are based, the salt in the water is enriched, the alkalinity is increased, the water quality is continuously deteriorated, and rubber material rubber balls adopted by the rubber ball cleaning device are gradually reduced in elasticity if the rubber balls are in severe water quality conditions for a long time, so that the balls are easily blocked in the pipeline of the condenser. Due to limitations of the rubber ball cleaning technology, the problems of bacteria and algae breeding and water quality cannot be solved fundamentally, and therefore, a new product and technology are needed to solve the problems more effectively.
Disclosure of Invention
In order to overcome the defects of related products in the prior art, the invention provides an online cleaning descaling water treatment system which can simultaneously realize water quality treatment and condenser tube wall cleaning, overcomes the defects of the existing products, effectively solves the main problems of a circulating water system, ensures long-term stable operation of the system and maintains high heat exchange efficiency.
The invention provides an on-line cleaning descaling water treatment system, which is used for cleaning a condenser and performing water quality treatment on circulating water passing through an internal heat exchange pipeline, and is characterized by comprising the following components: the water treatment unit, the condenser and the filter separator are sequentially and circularly connected, the condenser comprises a condenser water inlet and a condenser water outlet, the filter separator comprises a rubber ball inlet end and a rubber ball outlet end, water flow flows in from the condenser, enters the water treatment unit through the filter separator for circulation, and is subjected to water quality treatment in the water treatment unit, when the condenser is monitored to reach a cleaning condition, the water treatment unit sends out rubber balls, flows in from the condenser water inlet, and after scrubbing and descaling are performed in the condenser, the rubber balls enter the rubber ball inlet end of the filter separator from the condenser water outlet, and flow back to the water treatment unit through the rubber ball outlet end.
In some embodiments of the present invention, the water treatment unit includes a ball dispenser, a water pump, a three-way control valve, an electrochemical reactor, and a control unit, wherein the ball dispenser, the water pump, the three-way control valve, and the electrochemical reactor are sequentially communicated, and the water pump is respectively connected with the ball dispenser and the three-way control valve; two water outlets of the three-way control valve are respectively connected with a ball dispenser and an electrochemical reactor, and the three-way control valve adjusts the water flow direction under the control of the control unit so as to realize the water quality treatment of the electrochemical reactor or the glue ball delivery of the ball dispenser.
In some embodiments of the present invention, the online cleaning and descaling water treatment system further includes a monitoring device, the monitoring device is disposed on the condenser, the monitoring device feeds back the working state of the condenser to the control unit, and the control unit determines whether the dirt level inside the condenser reaches the cleaning condition according to the monitoring data measured by the monitoring device so as to adjust the working mode of the water treatment unit accordingly.
In some embodiments of the invention, the water pump adopts a variable-frequency water pump, and under the control of the control unit, the flow rate of the water pump can be adjusted and adapted to different flow requirements required by the electrochemical reactor for water quality treatment or the ball dispenser for performing two different working conditions of rubber ball transmission.
In some embodiments of the present invention, the water treatment unit may include a precision filter communicating the water outlet end of the electrochemical reactor with the water inlet of the condenser, respectively.
In some embodiments of the present invention, the ball dispenser includes a ball receiving end, a ball dispensing end, a ball recycling net, a ball receiving chamber, and a baffle, the ball receiving end is communicated with a ball outlet end of the filter, the ball dispenser is internally provided with the ball recycling net, a bottom opening of the ball recycling net is formed, the ball receiving chamber is located below the opening, the ball recycling net is respectively communicated with the ball receiving end, the ball receiving chamber and a water pump, the ball receiving chamber is respectively communicated with the ball dispensing end and a three-way control valve, the baffle is disposed in the ball receiving chamber and located below the opening, and the baffle is opened and closed under the action of water flow to respectively block the bottom opening of the ball recycling net or a communication position of the ball receiving chamber and the three-way control valve.
In some embodiments of the invention, the electrochemical reactor is composed of a reaction chamber, an EST electrode, an electric scraper device and an automatic drain valve, wherein the reaction chamber is used as a cathode, the EST electrode is used as an anode, calcium ions and magnesium ions are separated out from circulating water and attached to the inner wall of the reaction chamber through electrochemical reaction, and the electric scraper device and the automatic drain valve are started at fixed time to scrape scale deposited on the inner wall of the reaction chamber and drain the scale through the automatic drain valve.
In some embodiments of the present invention, a filtering component for intensively recycling the rubber balls is further disposed inside the filter separator, and two ends of the filtering component are respectively communicated with the rubber ball inlet end and the rubber ball outlet end, wherein the filtering component is integrally of a mesh screen structure.
In some embodiments of the invention, the condenser water inlet is provided with a flow sensor for monitoring the flow of water.
In some embodiments of the invention, the water treatment unit is provided with a flexible connection and a check valve at the inlet and outlet.
Compared with the prior art, the invention has the following advantages:
the online cleaning and descaling water treatment system provided by the embodiment of the invention utilizes the ball dispenser and the filter separator to regularly clean the inner wall of the condenser through the rubber ball, so that the inner wall of the heat exchange tube of the condenser is always kept clean and free from scale, the heat exchange efficiency of the condenser is greatly improved, meanwhile, the electrochemical reactor and the precision filter are matched to absorb scale and remove scale for circulating cooling water, bacteria and algae in water can be effectively killed, the water quality is improved, the rubber ball is ensured to run under good water quality conditions, the service life of the rubber ball is prolonged, the working state of the condenser can be monitored in real time, the full-automatic adjustment running of the system under two working modes of rubber ball cleaning and water quality treatment is realized, the maintenance cost is low, no chemical agent is added, the water quality is free from pollution, the environment is protected, and the online cleaning and descaling water treatment system has a wide application prospect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the principle and structure of an on-line cleaning and descaling water treatment system according to the present invention;
FIG. 2 is a top view of the water treatment unit of the present invention;
FIG. 3 is a side view of a water treatment unit according to the present invention;
FIG. 4 is another side view of the water treatment unit of the present invention;
fig. 5 is a schematic structural view of the filter according to the present invention.
Reference numerals illustrate:
1-water treatment unit, 2-condenser, 3-filter separator, 4-flow sensor, 5-flexible connection and check valve, 10-service, 11-water pump, 12-three-way control valve, 13-electrochemical reactor, 14-precision filter, 15-control unit, 21-condenser water inlet, 22-condenser water outlet, 31-rubber ball inlet end, 32-rubber ball outlet end, 33-filter element, 34-service port, 101-ball collecting end, 102-ball sending end, 103-rubber ball recovery net, 104-rubber ball storage room, 105-baffle, 130-automatic blowdown valve.
Detailed Description
In order to enable those skilled in the art to better understand the present invention, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present invention with reference to the accompanying drawings. It should be apparent that the described embodiments are only some, but not all embodiments of the present invention, and preferred embodiments of the present invention are presented below. This invention may be embodied in many different forms and is not limited to the embodiments described herein, but rather is provided to provide a more thorough understanding of the present disclosure.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of an on-line cleaning and descaling water treatment system according to the present invention, fig. 2 is a top view of a water treatment unit according to the present invention, fig. 3 is a side view of the water treatment unit according to the present invention, fig. 4 is another side view of the water treatment unit according to the present invention, and fig. 5 is a schematic structural diagram of a filter according to the present invention; the online cleaning descaling water treatment system is used for cleaning a condenser 2 and performing water quality treatment on circulating water in a heat exchange pipeline inside the condenser 2, and comprises a water treatment unit 1 and a filter separator 3, wherein the water treatment unit 1, the condenser 2 and the filter separator 3 are sequentially and circularly connected, the condenser 2 comprises a condenser water inlet 21 and a condenser water outlet 22, the filter separator 3 comprises a rubber ball inlet end 31 and a rubber ball outlet end 32, water flow flows into the water treatment unit 1 from the condenser 2 through the filter separator 3 and circulates in the water treatment unit 1, water quality treatment is performed in the water treatment unit 1, when the water treatment unit 1 is monitored to reach cleaning conditions, rubber balls are sent out from the water treatment unit 2 and flow into the water inlet 21 through the water flow, and after the interior of the condenser 2 is scrubbed and descaled, the rubber balls enter the rubber ball inlet end 31 of the filter separator 3 through the rubber ball outlet end 32 and flow back to the water treatment unit 1.
The water treatment unit 1 comprises a ball dispenser 10, a water pump 11, a three-way control valve 12, an electrochemical reactor 13 and a control unit 15, wherein the ball dispenser 10, the water pump 11, the three-way control valve 12 and the electrochemical reactor 13 are sequentially communicated, the water pump 11 is respectively connected with the ball dispenser 10 and the three-way control valve 12, and the control unit 15 is respectively electrically connected with the water pump 11 and the three-way control valve 12; two water outlet ends of the three-way control valve 12 are respectively connected with the ball dispenser 10 and the electrochemical reactor 13, and the three-way control valve 12 adjusts the water flow direction under the control of the control unit 15 so as to realize the water quality treatment of the electrochemical reactor 13 or the glue ball delivery of the ball dispenser 10.
In the embodiment of the present invention, the ball dispenser 10 includes a ball receiving end 101, a ball dispensing end 102, a ball recycling net 103, a ball receiving chamber 104, and a baffle 105, wherein the ball receiving end 101 is in communication with the ball outlet end 32 of the filter 3, the ball dispenser 10 is internally provided with the ball recycling net 103, the bottom opening of the ball recycling net 103 is located below the opening, the ball receiving chamber 104 is in communication with the ball receiving end 101, the ball receiving chamber 104, and the water pump 11, the ball receiving chamber 104 is in communication with the ball dispensing end 102 and the three-way control valve 12, and the baffle 105 is disposed in the ball receiving chamber 104 and below the opening, and the baffle 105 is opened and closed under the action of water flow to block the bottom opening of the ball recycling net 103 or the communication between the ball receiving chamber 104 and the three-way control valve 12.
Of course, it should be noted that, the control unit 15 may be integrally connected with other components of the water treatment unit 1, and in other embodiments of the present invention, the control unit 15 may be electrically connected with other components of the water treatment unit 1 in an external connection manner according to actual installation requirements, or perform equivalent functions through an external upper computer
The water pump 11 adopts a variable-frequency water pump, and under the control of the control unit 15, the flow of the water pump 11 can be adjusted and adapted to different flow requirements required by two different working conditions of the ball dispenser 10 for performing the rubber ball delivery or the electrochemical reactor 13 for performing the water quality treatment. When the online cleaning and descaling water treatment system is in a rubber ball cleaning mode, the required water flow is large, the water pump 11 operates at power frequency, the three-way control valve 12 switches the water flow direction to the ball dispenser 10, the baffle 105 is turned upwards under the action of the water flow to shield the bottom opening of the rubber ball recovery net 103, the rubber balls in the rubber ball storage chamber 104 are discharged from the ball dispensing end 102 and enter the condenser 2 under the action of water pressure, and enter the rubber ball inlet end 31 of the filter separator 3 after scrubbing the inner pipeline of the condenser 2, and flow back to the rubber ball recovery net 103 of the ball dispenser 10 through the rubber ball outlet end 32. After the cleaning process is finished, the three-way control valve 12 switches the water flow direction to the electrochemical reactor 13, the baffle 105 drops under the action of gravity and shields the communication part between the rubber ball storage chamber 104 and the three-way control valve 12, and the cleaning rubber ball falls back into the rubber ball storage chamber 104 from the rubber ball recovery net 103 to prepare for the next rubber ball cleaning. The water flow passes through the three-way control valve 12 through the water pump 11 and enters the electrochemical reactor 13 for electrochemical reaction, the electrochemical reactor 13 performs scale absorption and scale removal treatment on the water flowing through the electrochemical reactor, at the moment, the online cleaning scale removal water treatment system is in a water quality treatment mode, the required water flow is small, and the water pump 11 works under a variable frequency working condition.
The electrochemical reactor 13 is used for sucking scale and removing scale from water flowing through the electrochemical reactor 13, the electrochemical reactor 13 consists of a reaction chamber, an EST electrode, an electric scraper device and an automatic blow-down valve 130, the reaction chamber is used as a cathode, the EST electrode is used as an anode, the EST electrode is used as a core component, and is mainly made of a titanium alloy material and is coated with a rare metal material on the surface; the EST electrode has extremely low oxygen evolution potential, can effectively reduce the cell voltage of electrolytic reaction, improves the electrochemical reaction efficiency and reduces the power consumption. After the anode and cathode are electrified to react, under the condition that a reaction current with certain intensity is maintained in a reaction chamber, high-concentration hydroxyl radicals are formed near the inner wall of the reaction chamber, the high-pH environment enables mineral substances easy to scale to form crystals and separate out of water, the EST electrode enables calcium ions and magnesium ions to separate out of circulating water and adhere to the inner wall of the reaction chamber through electrochemical reaction, and the electric scraper device and the automatic drain valve 130 are started at regular time to scrape scale deposited on the inner wall of the reaction chamber and drain the scale out of the system through the automatic drain valve 130; meanwhile, the electrochemical reaction can effectively kill bacteria and algae in water and improve the water quality, thereby ensuring that the rubber ball operates under good water quality conditions and prolonging the service life of the rubber ball.
The process of the series of electrochemical reactions is specifically as follows:
1. generating a large amount of OH near the inner wall of the reaction chamber - Ions form a strong alkaline environment which disturbs the chemical balance of scale in the diffusion layer adjacent to the reaction chamber wall, and calcium carbonate is formed to be separated out of water and attached to the inner wall of the reaction chamber;
2. at the same time, the current of the cathode causes dissolved heavy metal ions to form oxide precipitates, the oxide precipitates sink to the bottom of the reaction chamber, and chlorine ions are electrolyzed and oxidized near the anode to generate free chlorine or hypochlorous acid (C1O) - )
3. Hydroxyl radical, oxygen radical, ozone and hydrogen peroxide are generated near the anode at the same time, and the substances further strengthen the sterilization and algae removal effect of the whole water system in the reaction chamber;
4. the suspended matters are instable under the action of an electric field, and flocculate and precipitate to the bottom of the reaction chamber.
When the working time of the electrochemical reactor 13 reaches a set value or the conductivity in water is too high, the control unit 15 can start an automatic scale scraping, pollution discharging and cleaning procedure, the automatic pollution discharging valve 130 is automatically opened, a scale scraping motor in the electric scraper device is started to drive the scraper to rotate and scrape soft scale on the inner wall of the reaction chamber, and the soft scale and sediment are discharged out of the reaction chamber through the automatic pollution discharging valve 130.
In this embodiment of the present invention, the online cleaning and descaling water treatment system further includes a monitoring device, where the monitoring device is disposed on the condenser 2, the monitoring device feeds back the working state of the condenser 2 to the control unit 15, and the control unit 15 determines, according to the monitoring data measured by the monitoring device, whether the dirt level inside the condenser 2 reaches the cleaning condition, so as to correspondingly adjust the working mode of the water treatment unit 1; the monitoring device monitors working condition data of the condenser 2, such as small temperature difference data and the like, can judge the dirt degree of the condenser 2, reduces heat exchange efficiency when the small temperature difference of the condenser 2 becomes large, at the moment, needs to control the water treatment unit 1 to execute rubber ball cleaning operation on the condenser 2, and after the small temperature difference of the condenser 2 is recovered to be normal, controls the water treatment unit 1 to switch a working mode to execute water quality treatment operation; in the embodiment of the present invention, the monitoring device feeds back the monitoring data to the control unit 15, and the control unit 15 correspondingly controls the water treatment unit 1 to respectively execute corresponding working modes according to the monitoring data, including a rubber ball cleaning mode and a water quality treatment mode.
In the embodiment of the present invention, the water treatment unit 1 may further be provided with a precise filter 14, where the precise filter 14 is respectively connected to the water outlet end of the electrochemical reactor 13 and the condenser water inlet 21 of the condenser 2, and the precise filter 14 may further intercept suspended fine scale precipitated in the electrochemical reactor 13, and implement automatic scale removal by using an electric sewage drain, so as to implement optimal water quality treatment on the cooling water flow through cooperation of the electrochemical reactor 13 and the precise filter 14.
In the embodiment of the present invention, a filter member 33 for intensively recycling the rubber balls is further disposed inside the filter separator 3, and two ends of the filter member 33 are respectively connected to the rubber ball inlet end 31 and the rubber ball outlet end 32, wherein the filter member 33 is integrally in a mesh screen structure, and the rubber balls are trapped in the filter member 33 due to the mesh of the mesh screen being smaller than the diameter of the rubber balls, and return to the ball dispenser 10 through the rubber ball outlet end 32; in some embodiments of the present invention, in order to facilitate detection and maintenance of the inside of the filter member 33, an access opening 34 is provided on the outside of the filter member 33, and maintenance personnel can maintain the inside of the filter member 33 through the access opening 34, so as to effectively maintain the normal operation of the filter separator 3.
In the embodiment of the invention, the condenser water inlet 21 is provided with the flow sensor 4 for monitoring the flow of water, and meanwhile, the inner and outer interfaces of the water treatment unit 1 are respectively provided with the soft connection and the check valve 5, so that the problems of glue ball backflow and vibration caused by glue balls in the sending and recycling processes are avoided, the problems of leakage and the like caused by external interference or manual misoperation during long-term operation of the system are avoided, and the safety and the stability of the system are greatly improved.
The working principle of the online cleaning and descaling water treatment system provided by the invention is as follows:
in the process of performing water quality treatment on circulating water, the electrochemical reactor 13 is used for sucking and descaling water flow, and the precise filter 14 is matched for further intercepting suspended fine scale matters separated out by the electrochemical reactor 13, so that the optimized water quality treatment on cooling water flow is realized;
in the process of cleaning the rubber ball of the condenser 2, the three-way control valve 12 switches the water flow direction according to the control signal of the control unit 15, the control unit 15 can adjust the water pump 11 to be in a variable frequency state or a power frequency state, the water pressure can discharge the rubber ball in the rubber ball storage chamber 104 from the ball delivery end 102, the rubber ball is driven by the water flow to flow into the end cover of the water inlet 21 of the condenser, and the rubber ball cleans and removes the scale of the heat exchange copper pipe in the condenser 2. The cleaning rubber balls with the diameters slightly larger than that of the heat exchange copper tubes are randomly distributed in a main machine of the condenser 2 and enter the heat exchange copper tubes, the cleaning rubber balls are extruded and moved to the other end from one end of the heat exchange copper tubes under the pushing of cooling circulating water, the cleaning and removal of scale attached to the inner walls of the heat exchange copper tubes are realized in the process, the rubber balls after scrubbing enter a rubber ball inlet end 31 of the filter separator 3 through a condenser water outlet 22, the rubber balls are trapped and collected by a filtering part 33 in the filter separator 3 and flow back to the ball dispenser 10 through a rubber ball outlet end 32, after the cleaning process is finished, a three-way control valve 12 adjusts the water flow direction to the electrochemical reactor 13, a control unit 15 switches the water pump 11 to a variable frequency state, and at the moment, the water flow enters the electrochemical reactor 13 to continuously execute a water quality treatment function, and the operations are repeated.
The online cleaning and descaling water treatment system provided by the embodiment of the invention has the advantages that the inner wall of the condenser 2 is cleaned regularly by the ball dispenser 10 and the filter separator 3 through the rubber balls, the inner wall of the heat exchange tube of the condenser 2 is always kept clean and free of scale, the heat exchange efficiency of the condenser 2 is greatly improved, meanwhile, the circulating cooling water is sucked and descaled by the cooperation of the electrochemical reactor 13 and the precise filter 14, bacterial algae in the water can be effectively killed, the water quality is improved, and the rubber balls are ensured to run under good water quality conditions, so that the service life of the rubber balls is prolonged; the working state of the condenser 2 can be monitored in real time, the full-automatic adjustment operation of the system in two working modes of rubber ball cleaning and water quality treatment is realized, the maintenance cost is low, no chemical agent is added, the water quality is pollution-free, the environment is friendly, and the system has a wide application prospect.
What is not described in detail in this specification is prior art known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the present invention may be modified or equivalents substituted for some of the features thereof. All equivalent substitutions made by the content of the specification of the invention are directly or indirectly applied to other related technical fields, and are also within the scope of the invention.
Claims (9)
1. An on-line cleaning descaling water treatment system for cleaning a condenser and performing water quality treatment on circulating water passing through an internal heat exchange pipeline thereof, characterized in that the water treatment system comprises: the water treatment unit, the condenser and the filter separator are sequentially and circularly connected, the condenser comprises a condenser water inlet and a condenser water outlet, the filter separator comprises a rubber ball inlet end and a rubber ball outlet end, water flow flows in from the condenser, enters the water treatment unit through the filter separator for circulation, and carries out water quality treatment in the water treatment unit, when the condenser is monitored to reach a cleaning condition, the water treatment unit sends out rubber balls, flows in from the condenser water inlet, and after the rubber balls scrub and remove the scale in the condenser, the rubber balls enter the rubber ball inlet end of the filter separator from the condenser water outlet, and flow back to the water treatment unit through the rubber ball outlet end;
the water treatment unit comprises a ball dispenser, a water pump, a three-way control valve, an electrochemical reactor and a control unit, wherein the ball dispenser, the water pump, the three-way control valve and the electrochemical reactor are sequentially communicated, and the water pump is respectively connected with the ball dispenser and the three-way control valve; two water outlets of the three-way control valve are respectively connected with a ball dispenser and an electrochemical reactor, and the three-way control valve adjusts the water flow direction under the control of the control unit so as to realize the water quality treatment of the electrochemical reactor or the glue ball delivery of the ball dispenser.
2. The on-line cleaning and descaling water treatment system according to claim 1, wherein: the online cleaning descaling water treatment system further comprises a monitoring device, the monitoring device is arranged on the condenser, the monitoring device feeds back the working state of the condenser to the control unit, and the control unit determines whether the dirt degree inside the condenser reaches cleaning conditions or not according to monitoring data measured by the monitoring device so as to correspondingly adjust the working mode of the water treatment unit.
3. The on-line cleaning and descaling water treatment system according to claim 1, wherein: the variable-frequency water pump is adopted by the water pump, and under the control of the control unit, the flow of the water pump can be adjusted and is adapted to different flow requirements required by the water quality treatment of the electrochemical reactor or the two different working conditions of the ball dispenser for executing the rubber ball transmission.
4. The on-line cleaning and descaling water treatment system according to claim 1, wherein: the water treatment unit may include a precision filter which communicates with the water outlet of the electrochemical reactor and the water inlet of the condenser, respectively.
5. The on-line cleaning and descaling water treatment system according to claim 1, wherein: the ball dispenser comprises a ball receiving end, a ball dispensing end, a ball recycling net, a ball storage chamber and a baffle, wherein the ball receiving end is communicated with a ball outlet end of the filter, the ball dispenser is internally provided with the ball recycling net, the bottom of the ball recycling net is opened, the ball storage chamber is positioned below the opening, the ball recycling net is respectively communicated with the ball receiving end, the ball storage chamber and a water pump, the ball storage chamber is respectively communicated with the ball dispensing end and a three-way control valve, the baffle is arranged in the ball storage chamber and positioned below the opening, and the baffle is opened and closed under the action of water flow to respectively shield the bottom opening of the ball recycling net or the communication position of the ball storage chamber and the three-way control valve.
6. The on-line cleaning and descaling water treatment system according to claim 1, wherein: the electrochemical reactor consists of a reaction chamber, an EST electrode, an electric scraper device and an automatic drain valve, wherein the reaction chamber is used as a cathode, the EST electrode is used as an anode, calcium ions and magnesium ions are separated out from circulating water and attached to the inner wall of the reaction chamber through electrochemical reaction, and the electric scraper device and the automatic drain valve are started at regular time to scrape scale deposited on the inner wall of the reaction chamber and discharge the scale out of the system through the automatic drain valve.
7. The on-line cleaning and descaling water treatment system according to claim 1, wherein: the filter separator is characterized in that a filter component for intensively recycling rubber balls is further arranged in the filter separator, two ends of the filter component are respectively communicated with the rubber ball inlet end and the rubber ball outlet end, and the filter component is of a mesh screen structure.
8. The on-line cleaning and descaling water treatment system according to claim 1, wherein: the condenser water inlet is provided with a flow sensor for monitoring the flow of water.
9. The on-line cleaning and descaling water treatment system according to claim 1, wherein: and soft connection and check valves are arranged at the inlet and outlet of the water treatment unit.
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| CN110028183A (en) * | 2019-05-25 | 2019-07-19 | 北京洁禹通环保科技有限公司 | A kind of ECT water treatment facilities suitable for evaporating cooling system |
| CN111994983A (en) * | 2020-08-21 | 2020-11-27 | 天津大学 | Method and apparatus for concentrating aqueous solution |
| CN112340899B (en) * | 2020-10-29 | 2022-10-04 | 浙江天行健水务有限公司 | Electric flocculation process for dynamic descaling |
| CN116123761A (en) * | 2022-10-09 | 2023-05-16 | 厦门烟草工业有限责任公司 | Refrigerating system |
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