CN106745832B - High-pressure water-flushing type rotary circulating water electrolysis descaling device and descaling method - Google Patents
High-pressure water-flushing type rotary circulating water electrolysis descaling device and descaling method Download PDFInfo
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- CN106745832B CN106745832B CN201710027504.6A CN201710027504A CN106745832B CN 106745832 B CN106745832 B CN 106745832B CN 201710027504 A CN201710027504 A CN 201710027504A CN 106745832 B CN106745832 B CN 106745832B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—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
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
- C02F2001/46138—Electrodes comprising a substrate and a coating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/20—Prevention of biofouling
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention discloses a high-pressure water-flushing type rotary circulating water electrolytic descaling device and a descaling method, which are suitable for the technical field of circulating water treatment. Solves the problems of damage to the scraper and obvious reduction of working efficiency caused by insufficient hard scale removal capability of the physical scraper of the conventional electrolytic descaling equipment. The electrolytic descaling device comprises a water outlet pipe (1), an end socket (2), a shell (3), a scraper (4), an equipment bracket (5), a slag discharge port (6), a water outlet (7), a first single-type rotary joint (8), a conductive slip ring (9), an anode plate (10), a support rod (11), a branch water pipe (12), a central water pipe (13) and other structures; the invention also provides a descaling method of the high-pressure water-flushing rotary circulating water electrolytic descaling device, which mainly comprises an electrolytic scaling process and a cleaning descaling process. The descaling device has the characteristics of low energy consumption, clean scale scraping and the like, and the descaling method can effectively improve the electrolytic working efficiency and the descaling effect.
Description
Technical Field
The invention relates to the technical field of circulating water treatment, in particular to a high-pressure water-flushing type rotary circulating water electrolytic descaling device and a descaling method.
Background
Currently, for industrial circulating water, the application range of an electrolytic descaling technology is increasingly enlarged, the problems that the scaling efficiency of a cathode plate is insufficient and hard scale is difficult to completely remove by a physical scraper and the like often occur in the practical application process, the water retention time of an actual treatment circulating water system of electrolytic descaling equipment is greatly prolonged, and the influence of water supplementing quantity on the circulating water system is difficult to offset by the actual descaling efficiency in severe cases, so that the total hardness of the industrial circulating water system has an ascending trend, and finally the scaling condition of a heat exchanger and a pipeline occurs. Meanwhile, the physical scraper is insufficient in hard scale removing capability, the situation that the scraper is damaged or blocked by local hard scale is easy to occur, particularly in some areas with higher total water supplementing hardness, the scale forming amount is enough to fill the distance between the cathode and the anode in 2-4 hours, so that the scale forming amount is often blocked by the scraper, the burning loss of the scraper motor is caused, and the actual working efficiency of electrolytic descaling equipment is obviously reduced.
Disclosure of Invention
The invention aims to provide a high-pressure water-jet rotary circulating water electrolytic descaling device and a descaling method, wherein the device adopts a high-pressure water-jet rotary physical scraper mode, has the characteristics of low energy consumption, clean scale scraping and the like, and meanwhile, the high-pressure water-jet rotary physical scraper mode can forcefully wash out scale scraping to prevent a large amount of scale bodies from accumulating in a dead water area.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a rotatory circulation water and electricity scale removal device of high pressure water dashing, the device includes outlet pipe (1), head (2), casing (3), scraper (4), equipment support (5), slag tap (6), delivery port (7), first single rotary joint (8), electrically conductive sliding ring (9), anode plate (10), bracing piece (11), branch water pipe (12), central water pipe (13), normal reaction circulating water inlet tube (14), second single rotary joint (15), two-position two-way solenoid valve (16), water distribution shower nozzle (17), slag discharge control valve (18), bolt (19), scraper high pressure water spray nozzle (20), anode plate and bracing piece fixed point (21), high pressure wash water pipe (22), high pressure water pump (23), ordinary water pump (24), control system (25), play water control valve (26), cathode terminal (27), positive pole wiring (28) and rib (29);
the upper part of the shell (3) is fixed with the seal head (2), a central water pipe (13) is arranged in the center of the shell (3), a plurality of branch water pipes (12) are arranged in the horizontal direction of the central water pipe (13) and are communicated with the central water pipe (13), a water outlet (7) is arranged above the central water pipe (13), the upper part of the central water pipe (13) is connected with the water outlet pipe (1), a water outlet control valve (26) is arranged on the water outlet pipe (1), the lower part of the shell (3) is of a conical or semicircular structure, polytetrafluoroethylene is sprayed inside, and a slag discharging port (6) and a slag discharging control valve (18) are arranged at the bottom of the shell (3);
the scraper (4) and the anode plate (10) are integrated into a whole through ribs (29) and supporting rods (11), the ribs (29) are respectively and horizontally fixed at the upper end and the lower end of a central water pipe (13) and are fixedly connected with the two ends of the scraper (4), a first single rotary joint (8) and a second single rotary joint (15) are respectively arranged at the upper end and the lower end of the central water pipe (13), the whole scraper structure can effectively rotate, the scraper (4) is vertically fixed at the outer side of the ribs (29), the upper end of the central water pipe (13) is also provided with a conductive slip ring (9), one end of the conductive slip ring is connected with a power supply, the other end of the conductive slip ring is connected with the anode plate (10) through an anode wiring (28), meanwhile, a plurality of supporting rods (11) are adopted for fixedly connecting the central water pipe (13) with the anode plate (10), anode plates and supporting rod fixing points (21) which are equal to the number of the supporting rods (11) are arranged on the anode plate (10), the upper surface of the supporting rods (11) are fixedly connected between the conductive slip ring (9) and the anode plate (10), and the lower surface of the supporting rods are fixedly communicated with branches (12) of the water pipe (13) of the high-pressure nozzle (20);
a water inlet pipe is arranged at one side of the lower part of the shell (3), the shell is divided into two paths, a high-pressure water pump (23) and a common water pump (24) are respectively connected, the other ends of the high-pressure water pump (23) and the common water pump (24) are connected with two electromagnetic valves (16) after being gathered, the shell is divided into a normal reaction circulating water inlet pipe (14) and a high-pressure flushing water pipe (22), the normal reaction circulating water inlet pipe (14) is connected with a water distribution spray head (17), and the high-pressure flushing water pipe (22) is communicated with the bottom end of the central water pipe (13) through a branch water pipe (12);
the control system (25) is respectively connected with a water outlet control valve (26), a slag discharging control valve (18), a two-position two-way electromagnetic valve (16), a high-pressure water pump (23) and a common water pump (24).
Further, the anode plate (10) adopts a net ruthenium iridium or iridium tantalum coating electrode plate, the shell (3) is an electrolytic reaction cathode, carbon steel, stainless steel or aluminum is used, polytetrafluoroethylene is sprayed on the outer wall of the shell, and a cathode binding post (27) is arranged on the shell (3).
Further, the upper part of the shell (3) is fixed with the seal head (2) through bolts (19), and the equipment support (5) is fixedly arranged at the bottom of the shell (3).
Further, the seal head (2) is semicircular in shape.
Further, the number of the scrapers (4) is 2-8, the number of the side-mounted scrapers is 8-20, the scrapers are uniformly distributed on the side surfaces of the scrapers (4), the number of the anode plates (10) is consistent with the number of the scrapers (4), the number of the ribs (29) is twice as large as the number of the scrapers (4), the average distribution is mounted on the upper end and the lower end of the central water pipe (13) and fixedly connected with the two ends of the scrapers (4), the number of the supporting rods (11) is four times as large as the number of the scrapers, and the central water pipe (13) and the anode plates (10) are uniformly distributed into four layers for fixedly connected.
Further, the water outlet control valve (26), the slag discharging control valve (18) and the two-position two-way electromagnetic valve (16) select a pneumatic valve or an electric valve according to specific explosion-proof requirements.
Further, the control system (25) is a singlechip or a PLC control system.
The descaling method of the high-pressure water flushing type rotary circulating water electrolysis descaling device mainly comprises an electrolysis descaling process and a cleaning descaling process, wherein the electrolysis descaling process is to control a two-position two-way electromagnetic valve (16) to open a circulating water inlet pipe valve therein through a control system (25), circulating water enters a shell (3) through a normal reaction circulating water inlet pipe (14) and a water distribution spray head (17), the shell (3) is communicated with an anode plate (10), an electrolysis reaction is generated between a cathode and an anode, so that scale with a certain thickness is formed on the inner wall of the shell, when the reaction time reaches the set time of 4-48 h, a descaling program is started, the cleaning descaling process is to open the two-position two-way electromagnetic valve (16) to open another circulating water inlet pipe valve, high-pressure circulating water is sprayed out of a scraper blade (4) through a branch water pipe (12), the high-pressure water spray nozzle (20) is utilized to drive the scraper to rotate and move by utilizing a water reverse acting force, scale bodies formed on the inner wall of the shell (3) are removed, and meanwhile, when the high-pressure water can reach the cathode for the cathode, the scale removing time reaches the set time of 5-18, and the two-way electromagnetic valve is controlled to close the two-position electromagnetic valve (16) when the scale removing time reaches the set time of setting time of the two-position of the two-way electromagnetic valve is closed.
Further, the current density of the electrolytic scaling process is 20-160A/m 2 。
The working principle of the invention is as follows:
the working current density of the electrolytic reaction is 20-160A/m 2 In this way, hydroxide ions and carbonate ions with certain concentration are generated in the cathode region, the pH value is obviously increased (the pH value is more than 10), calcium ions, magnesium ions, hydroxide ions and carbonate ions in water are promoted to be combined to generate calcium hydroxide, magnesium hydroxide, calcium carbonate and magnesium carbonate, a large amount of scale is adhered to the inner wall of the shell to form a certain thickness of scale, and the scale on the inner wall of the shell is basically loose soft scale due to the fact that a large amount of hydrogen is generated by the cathode, so that the scale can be cleaned by using a physical scraper and high-pressure water.
Meanwhile, in a reaction area near the anode, chlorine ions lose electrons under the action of an electric field to be converted into free chlorine, and trace ozone and hydroxyl free radicals are generated, so that the substances have good sterilization and algae removal effects. In addition, the direct current electrolytic reaction, the cathode high pH environment and the anode low pH environment can create a good disinfection environment.
Anode reaction:
cathode reaction:
compared with the prior art, the invention has the beneficial effects that: the device adopts a high-pressure water-jet type rotary physical scraper mode, has the characteristics of low energy consumption, clean scale scraping and the like, and simultaneously the high-pressure water-jet type rotary physical scraper mode can forcefully wash out the scraped scale so as to prevent the scale from accumulating in a dead water area in a large quantity. The anode plate adopts the mesh ruthenium iridium or iridium tantalum coating electrode plate, which is beneficial to improving the electrolytic scaling efficiency, and the mesh structure can also enhance the actual circulating water mass transfer effect. Meanwhile, the area ratio of the cathode to the anode can be increased by adopting the net-shaped anode, so that the sterilization and algae removal effect of the anode is improved. The descaling method can effectively improve the electrolytic working efficiency and the descaling effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of a specific structure of an anode plate and a doctor blade according to the present invention;
parts and numbers in the figure:
1-water outlet pipe, 2-end enclosure, 3-shell, 4-scraper, 5-equipment support, 6-slag discharge port, 7-water outlet, 8-first single rotary joint, 9-conductive slip ring, 10-anode plate, 11-support rod, 12-branch water pipe, 13-central water pipe, 14-water inlet pipe, 15-second single rotary joint, 16-two-position two-way electromagnetic valve, 17-water distribution nozzle, 18-water outlet valve, 19-bolt, 20-scraper high-pressure water nozzle, 21-anode plate and support rod fixing point, 22-high-pressure flushing water pipe, 23-high-pressure water pump, 24-common water pump, 25-control system, 26-water outlet control valve, 27-cathode terminal, 28-anode wiring and 29-rib.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-2, a high-pressure water flushing type rotary circulating water descaling device comprises a water outlet pipe 1, a sealing head 2, a shell 3, a scraper 4, an equipment bracket 5, a deslagging port 6, a water outlet 7, a first single rotary joint 8, a conductive slip ring 9, an anode plate 10, a supporting rod 11, a branch water pipe 12, a central water pipe 13, a normal reaction circulating water inlet pipe 14, a second single rotary joint 15, a two-position two-way electromagnetic valve 16, a water distribution nozzle 17, a deslagging control valve 18, a bolt 19, a scraper high-pressure water nozzle 20, an anode plate and supporting rod fixing point 21, a high-pressure flushing water pipe 22, a high-pressure water pump 23, a common water pump 24, a control system 25, a water outlet control valve 26, a cathode binding post 27, an anode binding wire 28 and ribs 29;
the upper part of the shell 3 is fixed with the seal head 2, a central water pipe 13 is arranged in the center of the shell 3, a plurality of branch water pipes 12 are arranged in the horizontal direction of the central water pipe 13 and are communicated with the central water pipe 13, a water outlet 7 is arranged above the central water pipe 13, the upper part of the central water pipe 13 is connected with the water outlet pipe 1, a water outlet control valve 26 is arranged on the water outlet pipe 1, the lower part of the shell 3 is of a conical or semicircular structure, polytetrafluoroethylene is sprayed in the lower part of the shell, and a slag discharging port 6 and a slag discharging control valve 18 are positioned at the bottom of the shell 3;
in the embodiment, 4 cambered anode plates 10 are adopted, the scrapers 4 and the anode plates 10 are integrated into a whole through ribs 29 and supporting rods 11, the ribs 29 are respectively and horizontally fixed at the upper end and the lower end of a central water pipe 13 and fixedly connected with the two ends of the scrapers 4, a first single rotary joint 8 and a second single rotary joint 15 are respectively arranged at the upper end and the lower end of the central water pipe 13, the integral scraper structure can effectively rotate, the ribs 29 are respectively fixed at the upper end and the lower end of the central water pipe 13 in a divergent mode, the scrapers 4 are vertically fixed at the outer sides of the ribs 29, the upper end of the central water pipe 13 is also provided with a conductive slip ring 9, one end of the conductive slip ring 9 is connected with a power supply, the other end of the conductive slip ring is connected with the anode plates 10 through anode wires 28, meanwhile, 16 supporting rods 11 are uniformly divided into four layers for fixedly connecting the central water pipe 13 and the anode plates 10, anode plates and supporting rod fixing points 21 which are equal to the number of the supporting rods 11 are arranged on the anode plates 10 and are used for fixing the supporting rods, the upper surfaces of the supporting rods 11 are fixedly connected between the conductive slip ring 9 and the anode plates 10, and the lower surfaces are fixedly connected with the anode plates 10, and the lower surfaces of the branch water pipes 12 are fixedly connected with the central water pipe 13 and the high-pressure nozzle 20;
a water inlet pipe is arranged at one side of the lower part of the shell 3 and is divided into two paths, the two paths are respectively connected with a high-pressure water pump 23 and a common water pump 24, the other ends of the high-pressure water pump 23 and the common water pump 24 are integrated and then are connected with a two-position two-way electromagnetic valve 16, then the two paths are divided into a normal reaction circulating water inlet pipe 14 and a high-pressure flushing water pipe 22, the normal reaction circulating water inlet pipe 14 is connected with a water distribution nozzle 17, and the high-pressure flushing water pipe 22 is communicated with the bottom end of the central water pipe 13 through a branch water pipe 12;
the control system 25 is respectively connected with the water outlet control valve 26, the slag discharging control valve 18, the two-position two-way electromagnetic valve 16, the high-pressure water pump 23 and the common water pump 24.
The anode plate 10 adopts a netlike ruthenium iridium or iridium tantalum coating electrode plate, the shell 3 is an electrolytic reaction cathode, carbon steel, stainless steel or aluminum is used, polytetrafluoroethylene is sprayed on the outer wall of the shell, and a cathode binding post 27 is arranged on the shell 3.
The upper part of the shell 3 is fixed with the seal head 2 through bolts 19, and the equipment bracket 5 is fixedly arranged at the bottom of the shell 3.
The seal head 2 is semicircular in shape.
The number of the scrapers 4 is 4, the number of the side-mounted scraper high-pressure water spray nozzles 20 is 8-20, the scrapers are uniformly distributed on the side surfaces of the scrapers 4, the number of the anode plates 10 is identical to the number of the scrapers 4, the number of the ribs 29 is twice as large as the number of the scrapers 4, the scrapers are uniformly distributed on the upper end and the lower end of the central water pipe 13, the number of the supporting rods 11 is four times as large as the number of the scrapers 4, and the scrapers are uniformly distributed into four layers between the central water pipe 13 and the anode plates 10 for fixedly connecting.
The water outlet control valve 26, the slag discharging control valve 18 and the two-position two-way electromagnetic valve 16 select a pneumatic valve or an electric valve according to specific explosion-proof requirements.
The control system 25 is a single-chip microcomputer or a PLC control system.
The descaling method of the high-pressure water-flushing rotary circulating water electrolysis descaling device mainly comprises an electrolysis scaling process and a cleaning descaling process, wherein the electrolysis scaling is performed firstlyThe process is to set the current density to 20A/m 2 The control system 25 controls the two-position two-way electromagnetic valve 16 to open a circulating water inlet pipe, circulating water enters the shell 3 through the normal reaction circulating water inlet pipe 14 and the water distribution spray head 17, the shell 3 is connected with the anode plate 10, electrolytic reaction is generated between the cathode and the anode, scale removal program is started when the reaction time reaches the set time of 4h, the cleaning and descaling process is to open the two-position two-way electromagnetic valve 16 to open the other circulating water inlet pipe valve, high-pressure circulating water enters the central water pipe 13 through the high-pressure flushing water pipe 22, and is sprayed out from the scraper high-pressure water spray nozzle 20 on the scraper 4 through the branch water pipe 12, the scraper is driven to rotate by utilizing the water impact reverse acting force, scale formed on the inner wall of the shell 3 is removed, meanwhile, the high-pressure water can be used for washing cathode scale, the scraper can be assisted in descaling, when the descaling time reaches the set time of 5 min, the two-position two-way electromagnetic valve 16 is closed, and the slag discharge control valve 18 is opened to discharge waste water containing scale.
The test of the electrolytic descaling device and the descaling method of the embodiment selects the method to be in the east drug group 207 factory, and the circulating water quantity of the circulating water system is 3000m 3 /h, the water retention is 280m 3 The temperature difference between the inlet and outlet of the circulating water cooling tower is 5 ℃, and the water supplementing hardness is 200ppm. When the electrolysis device is not used, the total hardness of the circulating water can continuously increase, and the total hardness of the circulating water system is kept at 650ppm after the circulating water system is operated for 400 hours. After the electrolytic descaling device and the descaling method are used, the treatment capacity is 40m 3 And/h, after the treatment for 400 hours, the calcium hardness is basically kept in the range of 250-300 ppm. According to comparison of the water quality parameters of circulating water which is not used and is used by the electrolytic descaling equipment, the total hardness reduction amplitude is 87.5%.
Example 2
The difference from embodiment 1 is that the number of the scrapers 4 is 2, the number of the anode plates 10 is 2, the scrapers 4 are respectively fixed at the top end and the bottom end of the central water pipe 13 by adopting 4 ribs 29, and the central water pipe 13 and the anode plates 10 are uniformly divided into four layers by adopting 8 support rods 11 for fixed connection.
Current density of 160 for electrolytic scaling processA/m 2 The time of the electrolytic reaction is 48 hours, and the descaling time is 15 minutes.
The test of the electrolytic descaling device and the descaling method of the embodiment selects the method to be in the east drug group 207 factory, and the circulating water quantity of the circulating water system is 3000m 3 /h, the water retention is 280m 3 The temperature difference between the inlet and outlet of the circulating water cooling tower is 5 ℃, and the water supplementing hardness is 250ppm. When the electrolysis device is not used, the total hardness of the circulating water can continuously increase, and the total hardness of the circulating water system is kept at 700ppm after the circulating water system is operated for 400 hours. After the electrolytic descaling device and the descaling method are used, the treatment capacity is 40m 3 And/h, after the treatment for 400 hours, the calcium hardness is basically kept in the range of 250-300 ppm. According to comparison of the water quality parameters of circulating water which is not used and is used by the electrolytic descaling equipment, the total hardness reduction amplitude is 87.5%.
Example 3
The difference from the embodiment 1 is that the number of the scrapers 4 is 8, the number of the anode plates 10 is 8, the scrapers 4 are respectively fixed at the top end and the bottom end of the central water pipe 13 by adopting 8 ribs 29, and the central water pipe 13 and the anode plates 10 are uniformly divided into four layers by adopting 32 support rods 11 for fixed connection;
the current density of the electrolytic scaling process was 100A/m 2 The time of the electrolytic reaction is 20h, and the descaling time is 10 minutes.
The test of the electrolytic descaling device and the descaling method of the embodiment selects the method to be in the east drug group 207 factory, and the circulating water quantity of the circulating water system is 3000m 3 /h, the water retention is 280m 3 The temperature difference between the inlet and outlet of the circulating water cooling tower is 5 ℃, and the water supplementing hardness is 220ppm. When the electrolysis device is not used, the total hardness of the circulating water can continuously increase, and the total hardness of the circulating water system is kept at 670ppm after the circulating water system is operated for 400 hours. After the electrolytic descaling device and the descaling method are used, the treatment capacity is 40m 3 And/h, after the treatment for 400 hours, the calcium hardness is basically kept in the range of 250-300 ppm. According to comparison of the water quality parameters of circulating water which is not used and is used by the electrolytic descaling equipment, the total hardness reduction amplitude is 87.5%.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The high-pressure water flushing type rotary circulating water and electricity scale removing device is characterized by comprising a water outlet pipe (1), a sealing head (2), a shell (3), a scraper (4), an equipment bracket (5), a slag discharging port (6), a water outlet (7), a first single rotary joint (8), a conductive slip ring (9), an anode plate (10), a supporting rod (11), a branch water pipe (12), a central water pipe (13), a normal reaction circulating water inlet pipe (14), a second single rotary joint (15), a two-position two-way electromagnetic valve (16), a water distribution spray head (17), a slag discharging control valve (18), a bolt (19), a scraper high-pressure water spray nozzle (20), an anode plate and supporting rod fixing point (21), a high-pressure flushing water pipe (22), a high-pressure water pump (23), a common water pump (24), a control system (25), a water outlet control valve (26), a cathode binding post (27), an anode binding wire (28) and a rib (29);
the upper part of the shell (3) is fixed with the seal head (2), a central water pipe (13) is arranged in the center of the shell (3), a plurality of branch water pipes (12) are arranged in the horizontal direction of the central water pipe (13) and are communicated with the central water pipe (13), a water outlet (7) is arranged above the central water pipe (13), the upper part of the central water pipe (13) is connected with the water outlet pipe (1), a water outlet control valve (26) is arranged on the water outlet pipe (1), the lower part of the shell (3) is of a conical or semicircular structure, polytetrafluoroethylene is sprayed inside, and a slag discharging port (6) and a slag discharging control valve (18) are arranged at the bottom of the shell (3);
the scraper (4) and the anode plate (10) are integrated into a whole through ribs (29) and supporting rods (11), the ribs (29) are respectively and horizontally fixed at the upper end and the lower end of a central water pipe (13) and are fixedly connected with the two ends of the scraper (4), a first single rotary joint (8) and a second single rotary joint (15) are respectively arranged at the upper end and the lower end of the central water pipe (13), the whole scraper structure can effectively rotate, the scraper (4) is vertically fixed at the outer side of the ribs (29), a conductive slip ring (9) is further arranged above the central water pipe (13), one end of the conductive slip ring is connected with a power supply, the other end of the conductive slip ring is connected with the anode plate (10) through an anode wiring (28), meanwhile, a plurality of supporting rods (11) are adopted for fixedly connecting the central water pipe (13) with the anode plate (10), anode plates with the same number as the supporting rods (11) are arranged on the anode plate (10) and are fixed with the supporting rod, the supporting rods are used for fixing, the upper surface of the supporting rods (11) are fixedly connected between the conductive slip ring (9) and the anode plate (10), and the lower surface is fixedly communicated with the branches (12) of the high-pressure nozzle (20);
a water inlet pipe is arranged at one side of the lower part of the shell (3), the shell is divided into two paths, a high-pressure water pump (23) and a common water pump (24) are respectively connected, the other ends of the high-pressure water pump (23) and the common water pump (24) are connected with two electromagnetic valves (16) after being gathered, the shell is divided into a normal reaction circulating water inlet pipe (14) and a high-pressure flushing water pipe (22), the normal reaction circulating water inlet pipe (14) is connected with a water distribution spray head (17), and the high-pressure flushing water pipe (22) is communicated with the bottom end of the central water pipe (13) through a branch water pipe (12);
the control system (25) is respectively connected with a water outlet control valve (26), a slag discharging control valve (18), a two-position two-way electromagnetic valve (16), a high-pressure water pump (23) and a common water pump (24);
the anode plate (10) adopts a netlike ruthenium iridium or iridium tantalum coating electrode plate, the shell (3) is an electrolytic reaction cathode, carbon steel, stainless steel or aluminum is used, polytetrafluoroethylene is sprayed on the outer wall of the shell, and a cathode binding post (27) is arranged on the shell (3);
the number of the scrapers (4) is 2-8, the scrapers (20) are arranged on the side faces of the scrapers (4), and the number of the scrapers is 8-20 and the scrapers are uniformly distributed on the side faces of the scrapers (4).
2. The high-pressure water-flush rotary circulating water descaling device according to claim 1, wherein the upper part of the shell (3) is fixed with the sealing head (2) through bolts (19), and the equipment bracket (5) is fixedly arranged at the bottom of the shell (3).
3. A high pressure water flush rotary cycle water and electricity scale removal device according to claim 1 wherein said closure head (2) is semi-circular in shape.
4. The high-pressure water-flushing rotary circulating water descaling device according to claim 1, wherein the water outlet control valve (26), the slag discharging control valve (18) and the two-position two-way electromagnetic valve (16) are selected from pneumatic valves or electric valves according to specific explosion-proof requirements.
5. A high pressure water flush rotary cycle water and electricity scale removal device as claimed in claim 1 wherein said control system (25) is a single chip or PLC control system.
6. The descaling method of the high-pressure water flushing type rotary circulating water electrolytic descaling device as claimed in claim 1, which is characterized by mainly comprising an electrolytic descaling process and a cleaning descaling process, wherein the electrolytic descaling process is to control a two-position two-way electromagnetic valve (16) to open a circulating water inlet pipe valve therein through a control system (25), circulating water enters a shell (3) through a normal reaction circulating water inlet pipe (14) and a water distribution spray head (17), the shell (3) is communicated with an anode plate (10), electrolytic reaction is generated between an anode and a cathode, scale with a certain thickness is formed on the inner wall of the shell, when the reaction time reaches a set time, a descaling program is started, the cleaning descaling process is to open a two-position two-way electromagnetic valve (16) to open another circulating water inlet pipe valve, high-pressure circulating water enters a central water pipe (13) through a high-pressure flushing pipe (22), passes through a branch water pipe (12), a scraper high-pressure nozzle (20) on a scraper is driven to rotate by utilizing water impact reverse acting force, a slag removing body formed on the inner wall of the shell (3) is removed, and when the high-pressure water can be discharged for the two-position two-way electromagnetic valve (16) is set, and when the two-way electromagnetic valve (16) is opened, scale removing time is set, and the scale removing valve is closed.
7. The descaling method of the high-pressure water-flush type rotary circulating water electrolytic descaling device according to claim 6, wherein the current density in the electrolytic descaling process is 20-160A/m 2 。
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201620074U (en) * | 2010-02-20 | 2010-11-03 | 欧群飞 | Water treatment device for scale removal of electric scraper |
| CN203200084U (en) * | 2013-03-28 | 2013-09-18 | 上海鸿越环境科技有限公司 | Novel cooling circulating water sterilizing and descaling device |
| CN103381305A (en) * | 2013-08-02 | 2013-11-06 | 上海通禹图治环保科技有限公司 | Novel rotating energy-saving water purifying device |
| CN204213892U (en) * | 2014-10-27 | 2015-03-18 | 四川溢阳环保设备技术工程有限公司 | Boiler dosing descaling treatment device |
-
2017
- 2017-01-16 CN CN201710027504.6A patent/CN106745832B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201620074U (en) * | 2010-02-20 | 2010-11-03 | 欧群飞 | Water treatment device for scale removal of electric scraper |
| CN203200084U (en) * | 2013-03-28 | 2013-09-18 | 上海鸿越环境科技有限公司 | Novel cooling circulating water sterilizing and descaling device |
| CN103381305A (en) * | 2013-08-02 | 2013-11-06 | 上海通禹图治环保科技有限公司 | Novel rotating energy-saving water purifying device |
| CN204213892U (en) * | 2014-10-27 | 2015-03-18 | 四川溢阳环保设备技术工程有限公司 | Boiler dosing descaling treatment device |
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