CN110563165B - Electrochemical circulating cooling water purification device - Google Patents
Electrochemical circulating cooling water purification device Download PDFInfo
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- CN110563165B CN110563165B CN201910976264.3A CN201910976264A CN110563165B CN 110563165 B CN110563165 B CN 110563165B CN 201910976264 A CN201910976264 A CN 201910976264A CN 110563165 B CN110563165 B CN 110563165B
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- 239000000498 cooling water Substances 0.000 title claims abstract description 26
- 238000000746 purification Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 127
- 238000004140 cleaning Methods 0.000 claims abstract description 52
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 239000013049 sediment Substances 0.000 description 6
- 241000195493 Cryptophyta Species 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses an electrochemical circulating cooling water purification device, which relates to the technical field of industrial circulating cooling water treatment, and comprises a descaling box body, an anode group, a cathode group and a cathode treatment unit; the top end of the descaling box body is open, the descaling box body is provided with a water inlet and a water outlet, and the two sides of the descaling box body are respectively provided with a first fixing plate and a second fixing plate; the anode groups and the cathode groups are positioned in the descaling box body and are alternately arranged at intervals along the axial direction of the descaling box body; the cathode processing unit comprises a first supporting frame, a second supporting frame, a cleaning frame, a nozzle, a scraper, a first lifting unit and a second lifting unit. The invention has the beneficial effects that: can satisfy the purification of large-traffic water, clear up the incrustation scale that produces simultaneously in the purification process, equipment operation is simple.
Description
Technical Field
The invention relates to the technical field of industrial circulating cooling water treatment, in particular to an electrochemical circulating cooling water purifying device.
Background
In the continuous recycling of industrial circulating cooling water, the water evaporates in a cooling tower, the salt content gradually increases, and the scaling precipitation tendency of calcium carbonate in the water on a heat transfer interface increases. The pH value, temperature and nutrient of the cooling water are suitable for microorganism propagation, and if the pH value, the temperature and the nutrient are not controlled, the slime of the system can be increased, and the slime is deposited in the heat exchanger. The scaling and slime deposition cause the heat exchange efficiency of the heat exchanger to be reduced, the energy consumption to be increased, and the equipment to be seriously stopped and damaged.
Compared with the traditional chemical dosing method and the high-voltage electrostatic scale inhibition technology, the magnetization technology, the electromagnetic field technology, the quantum ring technology and the ultrasonic technology which are more studied, the electrochemical scale removal scale inhibition technology has the advantages that scale forming ions in water can be separated out of a water body in a scale deposition mode, and the technology belongs to typical active scale removal scale inhibition technology. Meanwhile, the anode in the electrochemical reactor can generate a large amount of strong oxidizing active substances in the reaction process, so that the technology has better killing and inhibiting effects on microorganisms and algae in a circulating cooling water system.
Patent CN201020644185.7 discloses an industrial cooling water scale removal device, including the shell, the one end of shell is the water inlet, and the other end is the delivery port, has seted up the access window on the shell to and set up the access door in access window department, still include the scale removal structure to the cooling water in the shell, the scale removal structure is permanent magnet its internal surface that sets up at the access door. The invention has simple structure and convenient maintenance, and can open the detection door for convenient and quick maintenance and clean the impurities in the shell as long as the shell is blocked by ferromagnetic impurities.
At present, an electrochemical water treatment system generally adopts a sealed metal box body and a cylinder body structure, a certain number of cathodes and anode plates are arranged in the box body and the cylinder body, but the area of the cathode and anode plates cannot be quite large due to the limitation of the box body and the cylinder body structure, so that the large-flow circulating water can be treated, and only the schemes of increasing the number of processors or shortening the residence time of the circulating water in the processors can be adopted. The increase of the number of the processors causes the complexity of the system, the workload of manual scale removal is large, and the investment cost is high. Thus, there is a strong need for a substantial amount of automated processing systems.
Disclosure of Invention
One of the technical problems to be solved by the invention is that the existing electrochemical treatment system cannot simultaneously meet the requirements of high-flow treatment and scale removal.
The invention solves the technical problems by the following technical means:
The invention provides an electrochemical circulating cooling water purification device, which comprises a descaling box body, an anode group, a cathode group and a cathode treatment unit, wherein the descaling box body is provided with a cathode; the cathode treatment unit is positioned at the upper end of the descaling box body;
The top end of the descaling box body is in an open shape, a water inlet and a water outlet are formed in the descaling box body, and a first fixing plate and a second fixing plate are respectively arranged on two sides of the descaling box body;
the anode groups and the cathode groups are positioned in the descaling box body, and are alternately arranged at intervals along the axial direction of the descaling box body;
The cathode treatment unit comprises a first supporting frame, a second supporting frame, a cleaning frame, a nozzle, a scraper, a first lifting unit and a second lifting unit; the first support frame is in sliding connection with the first fixed plate, the second support frame is in sliding connection with the second fixed plate, the first lifting unit is located on the first support frame, the second lifting unit is located on the second support frame, the cleaning frame is located between the first support frame and the second support frame, the section of the cleaning frame is U-shaped, and the first lifting unit and the second lifting unit are used for driving the cleaning frame to move downwards onto the cathode group so that the cathode group enters the opening end of the cleaning frame; the inner side wall of the opening end of the cleaning frame is provided with a scraper and a nozzle.
Working principle:
purifying water: the cathode group is connected with a power supply cathode, the anode group is connected with an anode power supply, water to be treated enters the descaling box body from the water inlet pipe, the power supply is started, the water flows out from the water outlet after being contacted with the anode plate and the cathode plate, scale forming ions in the water become scale and deposit on the cathode group due to the electrochemical action in the contact process of the water and the cathode group, bacteria and algae die due to the comprehensive action of physics, chemistry, electrochemistry and biology, and sediment deposits on the cathode group.
Cleaning scale: after a period of operation, deposit more incrustation scale on the negative plate, turn off the power, empty the water in the descaling box, move first support frame and second support frame to the negative pole group directly over, start first elevating unit and second elevating unit, drive the clearance frame and move down to the negative pole group on, cause the negative pole group to get into the open end of clearance frame, wash the incrustation scale on the negative pole group through nozzle spun rivers and scraper.
The beneficial effects are that: the electrochemical circulating cooling water purification device in the embodiment can meet the requirement of purifying a large-flow water body, meanwhile, the scale produced in the purification process is cleaned, the equipment is simple to operate, the scale on the cathode plate can be cleaned through the cathode treatment unit, and the service life of the equipment is prolonged.
Preferably, the bottom of the descaling box body is provided with a scale storage groove, the bottom of the scale storage groove is provided with a drain outlet, and the drain outlet is provided with a drain valve.
Preferably, the anode group comprises a plurality of anode plates, an anode connecting rod and a plurality of anode bus bars; one end of the anode plate is connected with the side wall of the anode busbar, two ends of the anode busbar are respectively connected with the inner side wall of the descaling box body, the axis of the anode busbar is vertical to the axis of the descaling box body, and the plurality of anode busbars are connected through anode connecting rods.
Preferably, the cathode group comprises a plurality of cathode plates, a cathode connecting rod and a plurality of cathode busbar, one end of the cathode plates is connected with the side wall of the cathode busbar, two ends of the cathode busbar are respectively connected with the inner side wall of the descaling box body, the axis of the cathode busbar is vertical to the axis of the descaling box body, and the plurality of cathode busbar are connected through the cathode connecting rod; the anode plates and the cathode plates are alternately arranged at intervals.
Preferably, both ends of the anode busbar are detachably connected with both ends of the descaling box respectively, both ends of the anode busbar are respectively provided with a first connecting plate, the center of the first connecting plate is connected with the end part of the anode busbar, a hole is formed in the first connecting plate, and the first connecting plate is in threaded connection with the inner side wall of the descaling box through a nut.
Preferably, both ends of the cathode busbar are detachably connected with both ends of the descaling box respectively, both ends of the cathode busbar are respectively provided with a second connecting plate, the center of the second connecting plate is connected with the end part of the cathode busbar, holes are formed in the second connecting plate, and the second connecting plate is in threaded connection with the inner side wall of the descaling box through nuts.
Preferably, the number of the water inlets is multiple, the water inlets are located between the anode plate and the cathode plate, each water inlet is provided with a first water inlet pipe, one end of each first water inlet pipe penetrates through the water inlet, and the other end of each first water inlet pipe is provided with a second water inlet pipe communicated with the first water inlet pipe.
Preferably, the number of the water outlets is multiple, the water outlets are positioned between the anode plate and the cathode plate, each water outlet is provided with a first water outlet pipe, one end of the first water outlet pipe penetrates through the water outlet, and the other end of the first water outlet pipe is provided with a second water outlet pipe communicated with the first water outlet pipe.
The beneficial effects are that: the water inlet is positioned between the anode plate and the cathode plate, and the water outlet is positioned between the anode plate and the cathode plate, so that the treatment efficiency can be improved.
Preferably, the cathode processing unit further comprises a first fixing frame, a first sliding block, a first motor, a first screw rod, a second fixing frame, a second sliding block, a second motor and a second screw rod;
The top surface of the first fixing plate is provided with a first sliding groove, the bottom end of the first fixing frame is connected with a first sliding block, and the first sliding block is in sliding connection with the first sliding groove; the first motor is positioned at one end of the first fixing frame, one end of the first screw rod is connected with the first fixing frame, and the other end of the first screw rod is connected with the first motor;
The top surface of the second fixing plate is provided with a second sliding groove, the bottom end of the second fixing frame is connected with a second sliding block, and the second sliding block is in sliding connection with the second sliding groove; the second motor is located one end of second mount, the one end and the second mount of second lead screw are connected, the other end and the second motor of second lead screw are connected.
Preferably, the first lifting unit comprises a first hydraulic cylinder, the second lifting unit comprises a second hydraulic cylinder, the first hydraulic cylinder is fixed on the side wall of the first support frame, the output end of the first hydraulic cylinder is fixedly connected with the top end of the cleaning frame, the second hydraulic cylinder is fixed on the side wall of the second support frame, and the output end of the second hydraulic cylinder is fixedly connected with the top end of the cleaning frame.
Working principle:
purifying water: the cathode group is connected with a power supply cathode, the anode group is connected with an anode power supply, water to be treated enters the descaling box body from the water inlet pipe, the power supply is started, the water flows out from the water outlet after being contacted with the anode plate and the cathode plate, scale forming ions in the water become scale and deposit on the cathode group due to the electrochemical action in the contact process of the water and the cathode group, bacteria and algae die due to the comprehensive action of physics, chemistry, electrochemistry and biology, and sediment deposits on the cathode group.
Cleaning scale: after a period of operation, deposit more incrustation scale on the negative plate, turn off the power, empty the water in the descaling box, move first support frame and second support frame to the negative pole group directly over, start first elevating unit and second elevating unit, drive the clearance frame and move down to the negative pole group on, cause the negative pole group to get into the open end of clearance frame, wash the incrustation scale on the negative pole group through nozzle spun rivers and scraper.
The beneficial effects are that: the electrochemical circulating cooling water purifying device can be used for purifying large-flow water and cleaning scale generated in the purifying process; the size of the cleaning frame can be set according to the size of the cathode plate, the operation of the equipment is simple, the scale on the cathode plate can be removed through the cathode treatment unit, and the service life of the equipment is prolonged.
The water inlet is positioned between the anode plate and the cathode plate, and the water outlet is positioned between the anode plate and the cathode plate, so that the treatment efficiency can be improved.
The invention has the advantages that:
(1) Can meet the requirement of purifying large-flow water bodies and clean scale produced in the purifying process; the size of the cleaning frame can be set according to the size of the cathode plate, the operation of the equipment is simple, the scale on the cathode plate can be removed through the cathode treatment unit, and the service life of the equipment is prolonged;
(2) The water inlet is positioned between the anode plate and the cathode plate, and the water outlet is positioned between the anode plate and the cathode plate, so that the treatment efficiency can be improved.
Drawings
FIG. 1 is a schematic diagram of an electrochemical circulating cooling water purification apparatus according to embodiment 1 of the present invention;
Fig. 2 is a schematic structural diagram of an anode plate and an anode busbar according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of another structure of the anode plate and the anode busbar according to embodiment 1 of the present invention;
FIG. 4 is a schematic view showing the structure of a cathode plate and a cathode busbar according to example 1 of the present invention;
FIG. 5 is a plan view of the electrochemical circulating cooling water purification apparatus (excluding the cathode treatment unit) in example 1 of the present invention;
FIG. 6 is a schematic view of the structure of the descaling box and the cathode treatment unit (excluding the water inlet, the water outlet and the scale storage tank) according to embodiment 1 of the present invention;
FIG. 7 is a schematic cross-sectional view of an electrochemical circulating cooling water purification apparatus according to embodiment 1 of the present invention;
FIG. 8 is a schematic view of a cleaning rack in embodiment 1 of the present invention;
In the figure: a descaling box 1; a first inlet pipe 11; a second inlet pipe 12; a first outlet pipe 13; a second outlet pipe 14; a scale storage tank 15; a drain outlet 151; a drain valve 152; a first fixing plate 16; a second fixing plate 17; an anode group 2; an anode plate 21; an anode busbar 22; a cathode group 3; a cathode plate 31; cathode busbar 32; a cathode processing unit 4; a first support 411; a first mount 412; a first slider 413; a first hydraulic cylinder 414; a second supporting frame 421; a second fixing frame 422; a second slider 423; a second hydraulic cylinder 424; a cleaning rack 43; a nozzle 44; a scraper 45.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are 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.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Example 1
As shown in fig. 1, an electrochemical circulating cooling water purification apparatus includes a descaling box 1, an anode group 2, a cathode group 3, and a cathode treatment unit 4; the anode group 2 and the cathode group 3 are positioned in the descaling box 1, and the cathode treatment unit 4 is positioned at the upper end of the descaling box 1;
The descaling box 1 is columnar, in order to enable the descaling box 1 to contain more anode groups 2 and cathode groups 3, in the embodiment, the descaling box 1 is cuboid, the top end of the descaling box 1 is open, a plurality of water outlets are formed in the side wall of the upper end of the descaling box 1, a plurality of water inlets are formed in the side wall of the lower end of the descaling box 1, the bottom end of the descaling box 1 is connected with a scale storage tank 15, a drain outlet 151 is formed in the bottom end of the scale storage tank 15, and a drain valve 152 is arranged on the drain outlet 151; the scale storage tank 15 is cone-shaped for convenient sewage discharge.
The two sides of the top end of the descaling box 1 are respectively welded with a first fixing plate 16 and a second fixing plate 17, the first fixing plate 16 and the second fixing plate 17 are symmetrical relative to the center of the descaling box 1, a first sliding rail arranged along the axis of the first fixing plate 16 is arranged on the first fixing plate 16, and a second sliding rail arranged along the axis of the second fixing plate 17 is arranged on the second fixing plate 17;
If the descaling box 1 is made of conductive material, the descaling box can be used as a cathode for electrochemical reaction, and scale can be generated on the inner wall of the descaling box 1, so that the scale can be prevented from being generated on the inner wall of the descaling box 1 in the purification process, and the descaling box 1 is made of non-conductive material.
The anode group 2 includes a plurality of anode plates 21, anode connecting rods (not shown), and a plurality of anode bus bars 22; the anode plate 21 is plate-shaped or net-shaped, the anode busbar 22 is columnar, as shown in fig. 2, one end of the anode plate 21 is welded on the side wall of the anode busbar 22, two ends of the anode busbar 22 are respectively welded and fixed on the inner side wall of the descaling box 1, the axis of the anode busbar 22 is perpendicular to the axis of the descaling box 1, the number of the anode plate 21 and the number of anode connecting rods are set according to actual needs, and a plurality of anode busbars 22 are connected through the anode connecting rods; the anode plate 21 is made of a metal oxide coating or a boron-doped diamond coating, and is not limited to the metal oxide coating or the boron-doped diamond coating alone;
On the premise of ensuring the uniformity of the electric field between the cathode and the anode, in order to reduce the use amount of the anode plate 21 and reduce the equipment cost, the anode plate 21 can also be split, as shown in fig. 3, two anode plates 21 are welded on the side wall of the anode busbar 22, the two anode plates 21 are arranged along the axis of the anode connecting rod, and the two anode plates 21 are positioned on the same side of the anode connecting rod.
The cathode group 3 comprises a plurality of cathode plates 31, cathode connecting rods (not shown) and a plurality of cathode busbar 32, wherein the cathode plates 31 are plate-shaped or net-shaped, the cathode busbar 32 is columnar, as shown in fig. 4, one end of each cathode plate 31 is welded on the side wall of the cathode busbar 32, two ends of each cathode busbar 32 are respectively fixed on the inner side wall of the descaling box 1 through welding, the axis of each cathode busbar 32 is perpendicular to the axis of the descaling box 1, and the number of the cathode plates 31 and the cathode connecting rods is set according to actual requirements; the cathode bus bars 32 are connected through the cathode connecting bars, the material of the cathode plate 31 only needs to meet the structural strength of the conductive electrode, and the surface of the cathode plate 31 is flat and has no obvious bulge;
As shown in fig. 5, the axis of the anode plate 21 is parallel to the axis of the cathode plate 31, the anode plate 21 and the cathode plate 31 are alternately arranged at intervals, and the distances between the anode plate 21 and the cathode plate 31 are equal; the heights of the anode plate 21 and the cathode plate 31 are smaller than or equal to the height of the descaling box 1.
As shown in fig. 6, the water inlets are positioned between the anode plate 21 and the cathode plate 31, a first water inlet pipe 11 is arranged on each water inlet, one end of the first water inlet pipe 11 penetrates through the water inlet, the other end of the first water inlet pipe 11 is communicated with the side wall of the second water inlet pipe 12, a sealing ring is arranged on each water inlet for improving the tightness of the water inlet, a water inlet valve is arranged at the end part of the second water inlet pipe 12, and all the first water inlet pipes 11 are connected in parallel;
The water outlets are positioned between the anode plate 21 and the cathode plate 31, a first water outlet pipe 13 is arranged on each water outlet, one end of the first water outlet pipe 13 penetrates through the water outlet, the other end of the first water outlet pipe 13 is communicated with the side wall of the second water outlet pipe 14, a sealing ring is arranged on the water outlet for improving the tightness of the water outlet, and a water outlet valve is arranged at the end part of the second water outlet pipe 14; the first water outlet pipes 13 are connected in parallel.
As shown in fig. 6 and 7, the cathode processing unit 4 includes a first support 411, a first mount 412, a first slider 413, a first motor, a first screw, a first hydraulic cylinder 414, a second support 421, a second mount 422, a second slider 423, a second motor, a second screw, a second hydraulic cylinder 424, a cleaning frame 43, a nozzle 44, and a scraper 45;
The first support 411 and the second support 421 are both columnar, the first fixing frame 412 and the second fixing frame 422 are columnar, the bottom end of the first support 411 is fixedly connected with the first fixing frame 412 through welding, the bottom end of the first fixing frame 412 is fixedly connected with the first sliding rail through welding, the first sliding block 413 is slidably connected with the first sliding rail along the sliding direction of the first sliding rail, the bottom end of the second support 421 is fixedly connected with the second fixing frame 422 through welding, the bottom end of the second fixing frame 422 is fixedly connected with the second sliding block 423 through welding, the second sliding block 423 is slidably connected with the second sliding rail along the sliding direction of the second sliding rail, and the first support 411 and the second sliding rail are fixedly connected with each other through welding
The second supporting frame 421 is symmetrical with respect to the central axis of the descaling box 1;
One end of the first screw rod is fixedly connected with the first fixing frame 412 through welding, and the other end of the first screw rod is fixedly connected with the output end of the first motor; the first motor is located at one end of the first fixed plate 16; one end of the second screw rod is fixedly connected with the second fixing frame 422 through welding, and the other end of the second screw rod is fixedly connected with the output end of the second motor; the second motor is located at one end of the second fixing plate 17, and the center of the first motor and the center of the second motor are located on the same axis.
The first hydraulic cylinder 414 is fixed on the side wall of the first supporting frame 411, the second hydraulic cylinder 424 is fixed on the side wall of the second supporting frame 421, the output end of the first hydraulic cylinder 414 is fixedly connected with the top end of the cleaning frame 43, the output end of the second hydraulic cylinder 424 is fixedly connected with the top end of the cleaning frame 43, and the cleaning frame 43 is driven to reciprocate up and down through the first hydraulic cylinder 414 and the second hydraulic cylinder 424.
As shown in fig. 8, the section of the cleaning frame 43 is in a U shape, the cleaning frame 43 is located between the first supporting frame 411 and the second supporting frame 421, when the cleaning frame 43 moves down, the cathode plate 31 can enter the opening end of the cleaning frame 43, the inner side walls of the opening end of the cleaning frame 43 are fixedly provided with the scrapers 45, the knife edges of the scrapers 45 face the cathode plate 31, the scrapers 45 can be embedded into the side walls of the cleaning frame 43 and can also be fixedly arranged on the side walls of the cleaning frame 43 through welding, and the number of the scrapers 45 is set according to actual needs;
After removing the sediment on the cathode plate 31 by the scraper 45, in order to make the sediment fall into the sewage outlet 151, a nozzle 44 is fixedly arranged on the side wall of the cleaning frame 43, and the nozzle 44 is positioned below the scraper 45; the number of the nozzles 44 is set according to actual needs, and in order to improve the cleaning effect, the nozzles 44 in the present embodiment are high-pressure nozzles 44, but are not limited to the high-pressure nozzles 44; for cleaning, the anode busbar 22 in this embodiment is rectangular, and the width of the bottom surface of the anode busbar 22 is the same as the width of the top surface of the anode plate 21.
The working principle of the embodiment is as follows:
purifying water: the cathode group 3 is connected with a power supply cathode, the anode group 2 is connected with an anode power supply, water to be treated enters the first water inlet pipe 11 from the second water inlet pipe 12, water enters the descaling box 1 from the space between the anode plate 21 and the cathode plate 31, the power supply is started, and after the water passes through the anode plate 21 and the cathode plate 31 to be contacted, the water flows out from the first water outlet pipe 13 at the upper end, flows into the second water outlet pipe 14 and flows out from the second water outlet pipe 14; during the contact with the cathode plate 31 and the anode plate 21, scale-forming ions in water become scale due to electrochemical action and deposit on the side wall of the cathode plate 31, bacteria and algae die due to physical, chemical, electrochemical and biological combined action, and deposits deposit on the side wall of the cathode plate 31.
Cleaning scale: after a period of operation, depositing more scale on the cathode plate 31, closing a power supply, closing a water inlet valve, opening a drain valve 152 at the bottom end of the descaling box 1, draining water in the descaling box 1, starting a first motor and a second motor, driving the first screw rod to rotate by the first motor, driving the first fixing frame 412 to move along the sliding direction of a first sliding rail, driving the second screw rod to rotate by the second motor, driving the second fixing frame 422 to move along the sliding direction of a second sliding rail, converting rotary motion into linear motion, driving the cleaning frame 43 to move, closing the first motor and the second motor when the opening end of the cleaning frame 43 is positioned right above the cathode plate 31 to be cleaned, starting a first hydraulic cylinder 414 and a second hydraulic cylinder 424, driving the cleaning frame 43 to reciprocate up and down, enabling the cathode plate 31 to enter the opening end of the cleaning frame 43, communicating the nozzle 44 with a water source, enabling water to flow out from the nozzle 44, performing spraying and scraping operations on the surface of the cathode plate 31 through the scraper 45 and the nozzle 44, enabling deposited scale to flow into the scale storage tank 15, opening the drain valve 152, and discharging deposited material from the drain 151;
The first hydraulic cylinder 414 and the second hydraulic cylinder 424 are started to enable the cleaning frame 43 to move above the cathode plate 31, the first motor and the second motor are restarted to drive the cleaning frame 43 to move above the other cathode plate 31, the cleaning steps are repeated until all sediments on the surface of the cathode plate 31 are cleaned, the cleaned sediments flow into the scale storage groove 15, the scale removal box body 1 is discharged through the drain outlet 151, then the drain valve 152 is closed, the water inlet valve is opened, and the water body cleaning steps are repeated.
The advantages of this embodiment are: the electrochemical circulating cooling water purification device in the embodiment can meet the requirement of purifying large-flow water bodies, and meanwhile, can clean scale generated in the purification process; the size of the cleaning frame 43 can be set according to the size of the cathode plate 31, the operation of the device is simple, the scale on the cathode plate 31 can be removed through the cathode treatment unit 4, and the service life of the device is prolonged.
The water inlet is positioned between the anode plate 21 and the cathode plate 31, and the water outlet is positioned between the anode plate 21 and the cathode plate 31, so that the treatment efficiency can be improved.
Example 2
The difference between this embodiment and example 1 is that: when the scale on the cathode plate 31 is more and the cathode treatment unit 4 cannot be used for descaling, the anode group 2 and the cathode group 3 are conveniently replaced, and the anode group 2 and the cathode group 3 are detachably connected with the descaling box 1.
Still include first connecting plate and second connecting plate, first connecting plate is connected respectively at the both ends of the female row 22 of positive pole, and the center of first connecting plate is equipped with the hole with the female tip fixed connection who arranges 22 of positive pole on the first connecting plate, and the number in hole is set for according to actual need, is equipped with the screw hole on the descaling box 1, and first connecting plate passes through the inside wall of nut fixation at descaling box 1.
The second connecting plates are respectively connected to both ends of the cathode busbar 32, the centers of the second connecting plates are fixedly connected with the end parts of the cathode busbar 32, holes are formed in the second connecting plates, the number of the holes is set according to actual needs, threaded holes are formed in the descaling box 1, and the second connecting plates are fixed on the inner side walls of the descaling box 1 through nuts.
Example 3
This embodiment differs from embodiment 2 in that: in order to improve the automation degree of the electrochemical circulating cooling water purifying device, the device further comprises a PLC module, wherein the first motor, the second motor, the first hydraulic cylinder 414 and the second hydraulic cylinder 424 are connected with the PLC module; and a power supply connected with the cathode group 3 and the anode group 2 is connected with the PLC module, and the power supply mode comprises direct current constant voltage power supply and direct current constant current power supply.
(1) Cleaning at fixed time intervals: setting the processing time of the PLC module, and considering according to the water quality condition of the actual engineering site. The water quality condition is good, and the cleaning interval is long; poor water quality condition and short cleaning interval;
(2) Cleaning after checking the change of the electrical parameters: when the power supply mode is direct current constant voltage power supply, setting a lowest current value, and when the current is lower than the lowest current value, controlling the first motor, the second motor, the first hydraulic cylinder 414 and the second hydraulic cylinder 424 by the PLC module to clean scale; when the power supply mode is constant current power supply, the highest voltage value is set, and when the voltage is higher than the highest voltage value, the PLC module controls the first motor, the second motor, the first hydraulic cylinder 414 and the second hydraulic cylinder 424 to clean scale.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. An electrochemical circulating cooling water purifying device is characterized in that: comprises a descaling box body, an anode group, a cathode group and a cathode treatment unit; the cathode treatment unit is positioned at the upper end of the descaling box body;
The top end of the descaling box body is in an open shape, a water inlet and a water outlet are formed in the descaling box body, and a first fixing plate and a second fixing plate are respectively arranged on two sides of the descaling box body;
the anode groups and the cathode groups are positioned in the descaling box body, and are alternately arranged at intervals along the axial direction of the descaling box body;
The cathode treatment unit comprises a first supporting frame, a second supporting frame, a cleaning frame, a nozzle, a scraper, a first lifting unit and a second lifting unit; the first support frame is in sliding connection with the first fixed plate, the second support frame is in sliding connection with the second fixed plate, the first lifting unit is located on the first support frame, the second lifting unit is located on the second support frame, the cleaning frame is located between the first support frame and the second support frame, the section of the cleaning frame is U-shaped, and the first lifting unit and the second lifting unit are used for driving the cleaning frame to move downwards onto the cathode group so that the cathode group enters the opening end of the cleaning frame; the inner side wall of the opening end of the cleaning frame is provided with a scraper and a nozzle;
The anode group comprises a plurality of anode plates, an anode connecting rod and a plurality of anode busbar; one end of the anode plate is connected with the side wall of the anode busbar, two ends of the anode busbar are respectively connected with the inner side wall of the descaling box body, the axis of the anode busbar is vertical to the axis of the descaling box body, and the plurality of anode busbars are connected through anode connecting rods;
The cathode group comprises a plurality of cathode plates, a cathode connecting rod and a plurality of cathode busbar, one end of the cathode plates is connected with the side wall of the cathode busbar, two ends of the cathode busbar are respectively connected with the inner side wall of the descaling box body, the axis of the cathode busbar is vertical to the axis of the descaling box body, and the plurality of cathode busbar are connected through the cathode connecting rod; the anode plates and the cathode plates are alternately arranged at intervals;
the two ends of the anode busbar are detachably connected with the two ends of the descaling box body respectively, the two ends of the anode busbar are provided with first connecting plates respectively, the center of each first connecting plate is connected with the end part of the anode busbar, holes are formed in the first connecting plates, and the first connecting plates are in threaded connection with the inner side wall of the descaling box body through nuts;
The utility model discloses a descaling box, including the female row of negative pole, the both ends of female row of negative pole are connected with the both ends of scale removal box can be dismantled respectively, the both ends of female row of negative pole are equipped with the second connecting plate respectively, the center of second connecting plate and the female end connection who arranges of negative pole are equipped with the hole on the second connecting plate, the second connecting plate passes through the inside wall threaded connection of nut and scale removal box.
2. The electrochemical circulating cooling water purification apparatus of claim 1, wherein: the bottom of the descaling box body is provided with a scale storage groove, the bottom of the scale storage groove is provided with a drain outlet, and the drain outlet is provided with a drain valve.
3. The electrochemical circulating cooling water purification apparatus of claim 1, wherein: the number of the water inlets is multiple, the water inlets are located between the anode plate and the cathode plate, each water inlet is provided with a first water inlet pipe, one end of each first water inlet pipe penetrates through the water inlet, and the other end of each first water inlet pipe is provided with a second water inlet pipe communicated with the first water inlet pipe.
4. The electrochemical circulating cooling water purification apparatus of claim 1, wherein: the number of the water outlets is multiple, the water outlets are positioned between the anode plate and the cathode plate, each water outlet is provided with a first water outlet pipe, one end of each first water outlet pipe penetrates through the water outlet, and the other end of each first water outlet pipe is provided with a second water outlet pipe communicated with the first water outlet pipe.
5. The electrochemical circulating cooling water purification apparatus of claim 1, wherein: the cathode processing unit further comprises a first fixing frame, a first sliding block, a first motor, a first screw rod, a second fixing frame, a second sliding block, a second motor and a second screw rod;
The top surface of the first fixing plate is provided with a first sliding groove, the bottom end of the first fixing frame is connected with a first sliding block, and the first sliding block is in sliding connection with the first sliding groove; the first motor is positioned at one end of the first fixing frame, one end of the first screw rod is connected with the first fixing frame, and the other end of the first screw rod is connected with the first motor;
The top surface of the second fixing plate is provided with a second sliding groove, the bottom end of the second fixing frame is connected with a second sliding block, and the second sliding block is in sliding connection with the second sliding groove; the second motor is located one end of second mount, the one end and the second mount of second lead screw are connected, the other end and the second motor of second lead screw are connected.
6. The electrochemical circulating cooling water purification apparatus of claim 1, wherein: the first lifting unit comprises a first hydraulic cylinder, the second lifting unit comprises a second hydraulic cylinder, the first hydraulic cylinder is fixed on the side wall of the first support frame, the output end of the first hydraulic cylinder is fixedly connected with the top end of the cleaning frame, the second hydraulic cylinder is fixed on the side wall of the second support frame, and the output end of the second hydraulic cylinder is fixedly connected with the top end of the cleaning frame.
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| CN111170423A (en) * | 2020-03-11 | 2020-05-19 | 上海荷塘环保科技有限公司 | Electrochemical water treatment electrode group |
| CN113087087A (en) * | 2021-04-08 | 2021-07-09 | 复禹水务工程(上海)有限公司 | Sewage treatment equipment |
| CN115626690A (en) * | 2022-09-28 | 2023-01-20 | 国能长源武汉青山热电有限公司 | Electrochemical circulating water treatment device for cooling tower |
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| CN104261573B (en) * | 2014-09-30 | 2015-12-30 | 章明歅 | A kind of electrochemistry incrustation scale removal device |
| KR101787649B1 (en) * | 2016-11-10 | 2017-10-18 | 동명대학교산학협력단 | Device for removal of cooling water scale |
| CN208829380U (en) * | 2018-08-16 | 2019-05-07 | 上海东方威尔节能技术有限公司 | Electrochemical descaling device |
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