CN209456168U - A kind of electrochemical descaling device - Google Patents
A kind of electrochemical descaling device Download PDFInfo
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- CN209456168U CN209456168U CN201822147507.6U CN201822147507U CN209456168U CN 209456168 U CN209456168 U CN 209456168U CN 201822147507 U CN201822147507 U CN 201822147507U CN 209456168 U CN209456168 U CN 209456168U
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- electrochemical descaling
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Abstract
The utility model discloses a kind of electrochemical descaling devices, are related to the fields such as industrial circulation water treatment, solve the heat exchange surface scale deposition problems of existing recirculated water cooling exchange device.The electrochemical descaling device includes power-supply system and work system.Power-supply system is DC source, and work system is mainly made of parallel, close, alternately arranged anode and cathode.Anode is non-sacrificial formula DSA anode.Cathode is that the wire mesh of multilayer different meshes is combined, and forms and is connected with and fixes between each layer net of cathode.Cathode regenerative mode uses ultrasonic cleaning.The utility model is made electrochemical descaling device using highly efficient, energy-efficient cathode and is removed to the incrustation ion in water.It works under room temperature, scale removal is more efficient, and the electrode regeneration period is longer, consumes energy smaller.
Description
Technical field
The utility model relates to electro-chemical water processing system fields, are a kind of electrochemical descaling devices specifically.
Background technique
With the fast development of the industries such as oil refining, chemical industry, industrial water is increasingly in short supply.Recirculated water cooling exchange device is that oil refining follows
The important component of ring water system.But with the extension of device runing time, heat exchanger internal incrustation problem is got worse, no
Only cause energy loss and water resource waste, also will cause underdeposit corrosion, cause production unplanned shutdown, loss of material, very
To the serious accidents such as set off an explosion.Due to the solubility with temperature of calcium carbonate raising and reduce, when circulating water flow is through heat exchange wall
Face, when temperature reaches the Precipitation Temperature of calcium carbonate, then calcium carbonate is precipitated to form scale in heat exchange surface.At this stage, for circulation
Water system mainly inhibits scale to deposit using the method for addition antisludging agent, and the theory, technology in terms of electrochemical descaling rarely have
Report, wherein most commonly seen mode is that also have using stainless steel plate or equipment barrel as the descaling equipment of cathode using ion
Equipment is divided into the descaler form of anode chamber and cathode chamber by exchange membrane.Although existing technological means delays to a certain extent
The deposition of equipment heat exchange wall surface scale, but generally existing scale removal rate is low, water process amount is small, there are limiting current density, go
Except the disadvantages of unit calcium carbonate energy consumption is high, electrode regeneration is difficult, for cold exchange device scale problems do not provide it is highly efficient,
Economic solution.
Summary of the invention
In order to solve scale problems caused by recirculated water cooling exchange device heat exchange surface is salted out because of calcium and magnesium, the utility model is logical
It crosses improvement cathode form and designs a kind of electrochemical descaling device, avoid exchanging heat by reducing hardness in circulation and basicity
Surface scale phenomenon.
The utility model realizes that technical solution used by above-mentioned technical effect is:
A kind of electrochemical descaling device, including power-supply system and work system, the work system is mainly by anode, cathode sets
At the cathode is stacked together by the wire mesh of the different meshes of multilayer and is formed, and cathode and anode are using alternate arrangement
Mode.
In the above-mentioned technical solutions, further, the power-supply system include DC constant current power supply or DC constant voltage source or
Pulse direct current source.Allow work system steady operation under the current status of direct current.
In the above-mentioned technical solutions, further, the spacing of the cathode adjacent two layers wire mesh is 0-3mm.It is described
Wire mesh material is selected from stainless steel, carbon steel, copper, titanium, nickel metal or its alloy or surface and contains Ni-based binary, ternary, polynary
Stainless steel, carbon steel, copper, titanium, nickel metal or its alloy of alloy layer；Its alloy refer specifically to stainless steel, carbon steel, copper, titanium,
Two or more of alloys in these metals of nickel；Coating includes Ni-Mo, Ni-Co, Ni-Sn, Ni-Mo-Co, Ni-Mo-W, Ni-
W-Fe-La.Anode uses non-sacrificial anode.
In the above-mentioned technical solutions, further, the wire mesh mesh number of the composition cathode is 8 mesh into 100 mesh
It is one or more；Each layer wire mesh mesh number is identical not exactly the same or different.
In the above-mentioned technical solutions, further, form cathode the wire mesh number of plies be one of 3 layers to 11 layers or
It is a variety of.
In the above-mentioned technical solutions, further, the arrangement mode of the cathode and anode be parallel plate type arrange or
The arrangement of person's concentric drums, the spacing between every layer of adjacent cathode and anode is in 2mm between 30mm.
In the above-mentioned technical solutions, further, anode uses titanium/iridium-tantalum metal oxide anode net or other non-sacrificial
Domestic animal property anode.
In the above-mentioned technical solutions, further, it forms between each layer wire mesh of cathode with bolt or rivet interlacement
It is fixed.
In the above-mentioned technical solutions, further, electrochemical descaling device includes shell, and the lower part of the housing is equipped with water inlet
And slag-drip opening, the case top are equipped with discharge outlet.
In the above-mentioned technical solutions, further, the enclosure interior is equipped with Vltrasonic device.
Above-mentioned electrochemical descaling device, the work system under steady-working state, recirculated water by apparatus for eliminating sludge bottom
Portion flows into, and flows out from the outlet on apparatus for eliminating sludge top.
Above-mentioned electrochemical descaling device, cathode surface generate loose scale, are formed using ultrasonic wave removing cathode surface
Dirty layer, carry out cathode regenerative, guarantee larger cathode reaction area.
The utility model has the beneficial effects that the utility model is using highly efficient, energy-efficient acceleration cathode surface at dirt
Mode realize the removal to hardness and basicity in recirculated cooling water, scale removal rate is 26-64g/m2H, for traditional scale removal dress
3-6 times for setting scale removal rate.It works under room temperature, hardness and level of alkalinity are lower in saliva out, and removal unit calcium carbonate energy consumption is more
It is low, energy consumption 6.0-3.0KWh/KgCaCO3, the 30-50% of only traditional apparatus for eliminating sludge, and then solve industrial circulating water and changing
This problem of hot equipment heat exchange surface fouling improves the thermal efficiency of recirculated water cooling exchange device, reduces underdeposit corrosion risk, and extension is set
The standby military service period.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
In Fig. 1: 1- water outlet, 2- cathode terminal, 3- anode terminal, 4- insulation crust, 5- water inlet, 6- stainless steel spiral shell
Bolt, 7- stainless steel nut, 8- stainless steel gasket, 9- cathode, 10- anode, 11- unload cinder notch, 12- titanium alloy nut, 13- titanium alloy
Gasket, 14- titanium alloy bolt.
Specific embodiment
To make to make the utility model further understanding, referring to Figure of description and specific implementation example to this reality
It is described further with novel:
Embodiment 1
Such as Fig. 1, a kind of electrochemical descaling device mainly includes cathode 9 and anode 10, and cathode 9 is that 7 layers of stainless steel cloth are bound
It forms, the stainless steel cloth mesh number for forming cathode is followed successively by 20 mesh, 12 mesh, 8 mesh, 50 mesh, 8 mesh, 12 mesh, 20 mesh.Cathode is not with
Becoming rusty, steel bolt 6, nut 7, gasket 8 are fixed, and anode 10 is DSA anode, fixed with titanium alloy bolt 14, nut 12, gasket 13.Phase
Adjacent cathode and anode spacing are 3mm.The equipment integral vertical type is placed, and water inlet 5 and unloads cinder notch 11 in device bottom.When water inlet,
The closing of 11 lower pipeline valve of cinder notch will be unloaded, water is flowed by water inlet 5, flowed out by the water outlet 1 on top.
Specifically, before the equipment runs, the anode of DC constant current power supply is connect with anode terminal 3 first, cathode and cathode
Terminal 2 connects.It is then shut off blow valve, water will be full of by opening inlet valve in equipment, and then adjust current value so that cathode table
Face carries out evolving hydrogen reaction.Stabling current value makes device work under constant current state, and operation electric current density range is 18-
50A/m2.Following adjustment equipment water-in and water-out flow, to reach the outlet hydraulic angle value of requirement.Regime flow is 300-500L/
H, equipment even running.After cathode surface deposits full dirty layer, stops DC constant current power supply power supply, close inlet valve, use
Ultrasonic wave removes the dirty layer of cathode surface, carries out cathode regenerative, opened after the completion of regeneration blow valve empty it is loose in descaler
Scale.Performance of the invention is as shown in table 1 compared with the device performance gone together both at home and abroad, it can be seen that the utility model compared to
The device gone together both at home and abroad has higher scale removal efficiency and lower energy consumption.
Table 1: performance of the invention is compared with the device performance gone together both at home and abroad
[1]D.Hasson,G.Sidorenko,R.Semiat,Low electrode area electrochemical
scale removal system,Desalination Water Treat.31(2011)35–41.
[2]D.Hasson,V.Lumelsky,G.Greenberg,Y.Pinhas,R.Semiat,Development of
the electrochemical scale removal technique for desalination applications,
Desalination 230(2008)329–342.
[3]C.Gabrielli,G.Maurin,H.Francy-Chausson,P.Thery,T.T.M.Tran,M.Tlili,
Electrochemical water softening:principle and application,Desalination 201
(2006)150–163.
[4]Y.Yu,H.Jin,P.Meng,Y.Guan,S.Shao,X.Chen,Electrochemical water
softeningusing air-scoured washing for scale detachment,Separation and
Purification Technology,191(2018)216-224.
[5]S.Zhi,S.Zhang,A novel combined electrochemical system for hardness
removal,Desalination 349(2014)68–72.
Embodiment 2
Such as Fig. 1, a kind of electrochemical descaling device, neighbouring cathode and anode spacing are 5mm and 8mm, remaining device parameter and behaviour
It is same as Example 1 to make condition.The spacing of neighbouring cathode and anode and descaler property relationship are as shown in table 2, it can be seen that phase
The increase of adjacent cathode and anode spacing is not obvious the increase of scale removal efficiency, but energy consumption needed for significantly increasing scale removal.Cause
This, the utility model cathode and anode use and are alternately closely spaced mode to reach energy-efficient purpose.
Table 2: influence of the spacing of neighbouring cathode and anode to descaler performance
Embodiment 3
Such as Fig. 1, a kind of electrochemical descaling device, the multiple layer metal silk screen for forming cathode selects stainless (steel) wire, copper mesh, nickel respectively
Net and titanium net, remaining device parameter and operating condition are same as Example 1.Form the wire mesh material and descaler of cathode
Energy relationship is as shown in table 3, it can be seen that the present apparatus can also reach preferable scale removal using other material wire meshes such as nickel, titaniums
Performance, wherein selecting material that there is higher scale removal rate and lower energy consumption for the wire mesh of stainless steel and copper.
Table 3: influence of the wire mesh material of cathode to descaler performance is formed
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail in previous embodiment, it should be understood by those skilled in the art that: this is practical
Novel to be not restricted to the described embodiments, what is described in the above embodiment and the description is only the principles of the present invention, not
Under the premise of being detached from the spirit and scope of the utility model, the utility model also has various changes and improvements, these change and change
Into in the range of both falling within claimed invention, the protection scope of the requires of the utility model has the attached claims
Book and its equivalent define.
Claims (12)
1. a kind of electrochemical descaling device, including power-supply system and work system, which is characterized in that
The work system is mainly made of anode, cathode, and the cathode is stacked together by the wire mesh of multilayer and is formed, yin
Grade and anode use alternate arrangement mode.
2. electrochemical descaling device according to claim 1, which is characterized in that the wire mesh material be selected from stainless steel,
Carbon steel, copper, titanium, nickel metal or its alloy or surface contain Ni-based binary, ternary, the stainless steel of multi-elements alloying coating, carbon steel,
Copper, titanium, nickel metal or its alloy；Anode uses non-sacrificial anode.
3. electrochemical descaling device according to claim 2, which is characterized in that Ni-based binary, ternary and the polynary conjunction
Gold plate, including Ni-Mo, Ni-Co, Ni-Sn, Ni-Mo-Co, Ni-Mo-W, Ni-W-Fe-La.
4. electrochemical descaling device according to claim 1, which is characterized in that the power-supply system includes DC constant current power supply
Or DC constant voltage source or pulse direct current source.
5. electrochemical descaling device according to claim 1, which is characterized in that between the cathode adjacent two layers wire mesh
Away from for 0-3mm.
6. electrochemical descaling device according to claim 1, which is characterized in that the wire mesh mesh number of the composition cathode
For one of 8 mesh to 100 mesh or a variety of；Each layer wire mesh mesh number is identical not exactly the same or different.
7. electrochemical descaling device according to claim 1, which is characterized in that the wire mesh number of plies for forming cathode is 3 layers
To one of 11 layers or a variety of.
8. electrochemical descaling device according to claim 1, which is characterized in that the arrangement mode of the cathode and anode is
Parallel plate type arrangement or concentric drums arrangement, the spacing between every layer of adjacent cathode and anode is in 2mm between 30mm.
9. electrochemical descaling device according to claim 1, which is characterized in that anode is using titanium/iridium-tantalum metal oxide sun
Polar net.
10. electrochemical descaling device according to claim 1, which is characterized in that form and use bolt between each layer net of cathode
Or rivet interlacement is fixed.
11. electrochemical descaling device according to claim 1, which is characterized in that electrochemical descaling device includes shell, the shell
Body lower part is equipped with water inlet and slag-drip opening, and the case top is equipped with discharge outlet.
12. electrochemical descaling device according to claim 11, which is characterized in that the enclosure interior is equipped with Vltrasonic device.
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| CN201822147507.6U CN209456168U (en) | 2018-12-20 | 2018-12-20 | A kind of electrochemical descaling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399812A (en) * | 2018-12-20 | 2019-03-01 | 大连理工大学 | A kind of electrochemical descaling device |
| CN115340197A (en) * | 2022-06-29 | 2022-11-15 | 天津正达科技有限责任公司 | Loose scale layer deposition method for electrochemical hard removal |
-
2018
- 2018-12-20 CN CN201822147507.6U patent/CN209456168U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399812A (en) * | 2018-12-20 | 2019-03-01 | 大连理工大学 | A kind of electrochemical descaling device |
| CN115340197A (en) * | 2022-06-29 | 2022-11-15 | 天津正达科技有限责任公司 | Loose scale layer deposition method for electrochemical hard removal |
| CN115340197B (en) * | 2022-06-29 | 2023-08-22 | 天津正达科技有限责任公司 | Loose scale layer deposition method for electrochemical hard removal |
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