CN207468260U - A kind of corrosion product capturing device - Google Patents
A kind of corrosion product capturing device Download PDFInfo
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- CN207468260U CN207468260U CN201721534691.9U CN201721534691U CN207468260U CN 207468260 U CN207468260 U CN 207468260U CN 201721534691 U CN201721534691 U CN 201721534691U CN 207468260 U CN207468260 U CN 207468260U
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- corrosion product
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- expansion drum
- solder joint
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Abstract
This application discloses a kind of corrosion product capturing devices, and corrosion product capturing device is arranged in expansion drum, and one end of DC power supply is connect with corrosion product capturing device, and the other end is connect with expansion drum.Set in expansion drum corrosion product capturing device can efficient trapping corrosion product, the concentration of corrosion product in inner cold water is reduced, so as to reduce deposition of the corrosion product on screening electrodes.Since the surface area of corrosion product capturing device is very big, amount of collected is big, can effectively reduce deposition of the corrosion product on screening electrodes, extends the Clean after every of screening electrodes, reduces the maintenance workload of converter valve, improves the safety in operation of converter valve.On the other hand, since expansion drum actual internal area is very big, the phenomenon that flow will not being caused to block in expansion drum.
Description
Technical field
This application involves technical field of electricity more particularly to a kind of corrosion product capturing devices.
Background technology
Converter valve is one of core equipment of DC transmission engineering.Brilliant valve pipe is the core component of converter valve.In brilliant valve pipe
During work, a large amount of heat can be generated, to prevent from damaging the element of converter valve since temperature is excessively high, converter valve is usually provided with valve
Cooling system.Valve cooling system generally use is the water cooling system for including external condensation system and inner cold system.Inner cold system is usually
Closed-type circulating cooling water system, and it is typically provided with screening electrodes.
The function of screening electrodes is to reduce brilliant valve tube radiator and the voltage difference at other positions.It is arranged on inner cold water branch
On manifold or the intake-outlet of radiator.In actual operation, some corrosion products can be inevitably generated in inner cold water.This
An a little corrosion product parts are intercepted by the accurate filter in inner cold water circuit, the smaller corruption of the grain size not being blocked
Erosion product is flowed in the form of colloid or suspended matter with inner cold water, is recycled in the loop.If corrosion product is deposited on equal piezoelectricity
On extremely, it can reduce the circulation area of flow, water flow is caused to reduce, cooling effect is deteriorated, and water-flowing path can be blocked when serious.
Simultaneously as incrustation scale electric conductivity is very poor, it is deposited on screening electrodes, and screening electrodes can be made to lose pressure effect.On the other hand,
When screening electrodes surface is not completely covered in incrustation scale, the root very small parts of particularly only screening electrodes is not corroded production
When object covers, electric current is concentrated in uncovered part, causes the galvano-cautery of screening electrodes sealing ring, inner cold water is caused to let out
Dew.Therefore, electrode usually is set in the expansion drum of water- cooling generator at present, to trap corrosion product, and then reduces corrosion production
Deposition of the object on screening electrodes.
However, the electrode and the tie point of DC power supply that use at present only there are one, lead to current potential and charge density distribution
It is uneven so that corrosion product is also uneven in the deposition of electrode surface, influences the trapping effect of corrosion product.
Utility model content
This application provides a kind of corrosion product capturing devices, uneven to solve the electrode points bit distribution used at present,
The problem of corrosion product largely deposits on screening electrodes, reduction converter valve safety.
The application provides a kind of corrosion product capturing device, and described device includes：
Electrode, several conducting wires and solder joint；
The conducting wire is connected on the electrodes by several solder joints；
The solder joint is uniformly distributed on the electrodes；
One end of several conducting wires is connect with the electrode, the other end of several conducting wires and the cathode of DC power supply
Connection；
The anode of the DC power supply is connect with expansion drum；
The conducting wire is externally provided with wire socket；
The solder joint is externally provided with solder joint protective case.
Optionally, the electrode is grid electrode；The spacing of the grid electrode is equal.
Optionally, the electrode is mesh electrode；The mesh form of the mesh electrode is square.
Optionally, the wire socket is thermoplastic dual-layer plastic bushing.
Optionally, the solder joint protective case is fluid sealant.
Optionally, the electrode is identical with the material of the conducting wire.
Optionally, the other end of several conducting wires is to be detachably connected with the DC power supply.
By above technical scheme it is found that the application provides a kind of corrosion product capturing device, by corrosion product capturing device
It is arranged in expansion drum, and one end of DC power supply is connect with corrosion product capturing device, the other end is connect with expansion drum.Make
During with corrosion product capturing device, the water sampling first from the expansion drum of chilled water system；Then screening electrodes surface is measured
The Zeta potential value of colloid in Zeta potential value and water sample；Finally, according in the Zeta potential value and water sample on screening electrodes surface
The Zeta potential value of colloid adjusts the voltage value between corrosion product capturing device and expansion drum, carries out the trapping of corrosion product.
Set in expansion drum corrosion product capturing device can efficient trapping corrosion product, reduce corrosion product in inner cold water
Concentration, so as to reduce deposition of the corrosion product on screening electrodes.Since the surface area of corrosion product capturing device is very big, trapping
Amount is big, can effectively reduce deposition of the corrosion product on screening electrodes, extend the Clean after every of screening electrodes, reduce converter valve
Maintenance workload improves the safety in operation of converter valve.On the other hand, since expansion drum actual internal area is very big, in expansion drum
Interior the phenomenon that flow will not being caused to block.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, attached drawing needed in case study on implementation will be made below
Simply introduce, it should be apparent that, for those of ordinary skills, in the premise of not making the creative labor property
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structure chart of corrosion product capturing device provided by the embodiments of the present application；
Fig. 2 is the capturing device of the embodiment of the present application and the scheme of installation of DC power supply；
Fig. 3 is the structure chart of grid electrode provided by the embodiments of the present application；
Fig. 4 is the structure chart of mesh electrode provided by the embodiments of the present application.
It illustrates：
Wherein, 1- electrodes；2- conducting wires；3- solder joints；4- DC power supplies；5- expansion drums.
Specific embodiment
Referring to Fig. 1, for a kind of structure chart of corrosion product capturing device provided by the embodiments of the present application, described device packet
It includes：
Electrode 1, several conducting wires 2 and solder joint 3；Electrode 1 generally makes for the corrosion product in absorption water that is powered on electrode 1
The electrically charged symbol of the sign and corrosion product of institute's band on the contrary, because with attracting each other between contrary sign charge,
It can utilize this principle that electrode is made to trap the corrosion product opposite with its sign.
The conducting wire 2 is connected to by several solder joints 3 on the electrode 1；Solder joint 3 makes for connecting wire 2 and electrode 1
Obtaining conducting wire 2 can make to take the voltage of DC power supply 4 on the corresponding position of electrode 1.
The solder joint 3 is uniformly distributed on the electrode 1；As shown in Figure 1, distribution of several solder joints 3 on electrode 1 can be with
Conducting wire 2 is made to be distributed uniformly, and then it is more uniform to obtain current potential and distribution of charges on electrode 1, can improve electrode 1 and trap corruption
Lose the effect of product.
One end of several conducting wires 2 is connect with the electrode 1, the other end and the DC power supply 4 of several conducting wires 2
Cathode connects；The anode of the DC power supply 4 is connect with expansion drum 5；DC power supply 4 provides negative electrical charge for electrode 1, is expansion drum
5 provide positive charge, because of the compound of the corrosion product aluminium in water, also there is the compound of a small amount of iron, copper, calcium, magnesium, these changes
It closes object and is known as colloid, colloid surface is also with positive charge in water, therefore makes the surface of electrode 1 with negative electrical charge, can be with
Colloid of the absorption with positive charge, makes corrosion product not deposit on screening electrodes, is conducive to using and changing for screening electrodes
Flow the safety of valve work.
The conducting wire 2 is externally provided with wire socket；Conductive casings are insulating sleeve, can seal conducting wire 2, prevent conducting wire 2
Electric leakage.
The solder joint 3 is externally provided with solder joint protective case；Solder joint protective case is also the protective case of insulation, can seal solder joint 3
It on electrode 1, prevents conducting wire 2 from leaking electricity, influences the trapping effect of electrode 1.
By above technical scheme it is found that the application provides a kind of corrosion product capturing device, as shown in Fig. 2, corrosion is produced
Object capturing device is arranged in expansion drum 5, and one end of DC power supply 4 is connect with corrosion product capturing device, the other end with
Expansion drum 5 connects.Set in expansion drum 5 corrosion product capturing device can efficient trapping corrosion product, it is cold in reduction
The concentration of corrosion product in water, so as to reduce deposition of the corrosion product on screening electrodes.Due to corrosion product capturing device
Surface area is very big, and amount of collected is big, can effectively reduce deposition of the corrosion product on screening electrodes, extend between the cleaning of screening electrodes
Every reducing the maintenance workload of converter valve, improve the safety in operation of converter valve.On the other hand, due to 5 flow area of expansion drum
Product is very big, the phenomenon that flow will not being caused to block in expansion drum 5.
Optionally, the electrode 1 is grid electrode；The structure of grid electrode is illustrated in figure 3, between the grid electrode
Away from equal, to ensure being evenly distributed, and then ensure the effect of the trapping corrosion product of electrode 1 for current potential and charge on electrode.
Optionally, the electrode 1 is mesh electrode；It is illustrated in figure 4 the structure of mesh electrode, the net of the mesh electrode
Hole shape is square, to ensure being evenly distributed for current potential and charge on electrode, and then ensure the trapping corrosion product of electrode 1
Effect.
Optionally, the wire socket is thermoplastic dual-layer plastic bushing.The material of casing is perfluoroethylene-propylene, is made
When, conducting wire 2 and electrode 1 are welded and then by perfluoroethylene-propylene shrinkable sleeve to conducting wire 2, with air-heater heating mantle
Pipe is shunk completely until casing.
Optionally, the solder joint protective case is fluid sealant.Solder joint protective case in the application is that underwater sealing glue will actually
Form after the sealing of solder joint 3, prevents solder joint 3 to be exposed in water, can not only leak electricity, can also easily be corroded, and reduces entire trapping
The service life of device.
Optionally, the electrode 1 is identical with the material of the conducting wire 2, is stainless steel material so that electrode 1 and conducting wire 2
It is not subject to corrode, more permanent and effective trapping corrosion product, general capturing device in use for some time, can be from swollen
It is taken out in swell, then using the corrosion product on certain means removal electrode 1, clean capturing device can also continue to make
With using uncorruptible stainless steel material, the service life of capturing device can be extended.
Optionally, the other end of several conducting wires 2 is to be detachably connected with the DC power supply 4.Due to capturing device
It needs to be cleaned in use for some time, so inevitably to be taken out from expansion drum 5, it at this moment also will necessarily be with direct current
Power supply 4 disconnects, and using dismountable connection mode, not only facilitates the disassembly, cleaning of each capturing device, can also reduce conducting wire 2 with
Caused by DC power supply 4 connects repeatedly the problem of loose contact.
Optionally, the expansion drum 5 is identical with the material of corrosion product capturing device, is stainless steel material.Stainless steel
Material is not only anticorrosive but also can be conductive, can make expansion drum 5 and charge on corrosion product trap band, can also extend making for the two
Use the service life.
By above technical scheme it is found that the application provides a kind of corrosion product capturing device, by corrosion product capturing device
It is arranged in expansion drum 5, and one end of DC power supply 4 is connect with corrosion product capturing device, the other end connects with expansion drum 5
It connects.Set in expansion drum 5 corrosion product capturing device can efficient trapping corrosion product, reduce and corrode production in inner cold water
The concentration of object, so as to reduce deposition of the corrosion product on screening electrodes.Since the surface area of corrosion product capturing device is very big,
Amount of collected is big, can effectively reduce deposition of the corrosion product on screening electrodes, extends the Clean after every of screening electrodes, reduces the change of current
The maintenance workload of valve improves the safety in operation of converter valve.On the other hand, since 5 actual internal area of expansion drum is very big, swollen
The phenomenon that flow will not being caused to block in swell 5.
Specifically, the embodiment of the present application has special experimental method to verify that corrosion product capturing device can when implementing
Effectively to trap the corrosion product of chilled water system, method is as follows：
Step 1, from 5 entrance water sampling of expansion drum, it is 7.88 to measure its pH with pH meter；Its Zeta electricity is measured with micro-electrophoresis apparatus
Position is+12.4mV the average value of measure (5 times), zero charge potential 10.4mV；
Step 2, apply the DC voltage of a 0.7V between corrosion product capturing device and expansion drum 5.DC voltage-stabilizing electricity
The cathode in source is connected with corrosion product capturing device, and anode is connected with expansion drum 5.In experiment, two have been disposed in tank is collided
Area is the electrode of 20 × 20 × 0.5mm, one of them is connected with corrosion product capturing device, another and 5 inner wall of expansion drum
It is connected.The material of two electrodes is identical with the material of corrosion product capturing device and expansion drum 5.
Step 3, after running 48 hours, two electrodes are taken out, it is clear with the hydrochloric acid solution difference of a concentration of 0.05mol/L of 20mL
Wash two electrodes.After cleaning solution is diluted to 50mL with deionized water, two kinds of cleanings are measured respectively with aluminon spectrophotography
Aluminium ion concentration in liquid.
It can be seen from the above result that not detecting aluminium ion in the cleaning solution of electrode being connected with expansion drum 5, caught with corrosion product
Aluminium ion can be detected in the cleaning solution for the electrode that acquisition means are connected, concentration is up to 5ug/L.The result shows that corrosion product traps
Device can effectively trap the corrosion product in inner cold water, and the concentration of corrosion product in water is made to reduce, and then be deposited on equal piezoelectricity
Corrosion product on extremely decreases.
Further, when the pH value of water sample, Zeta potential value and zero charge potential value change, above-mentioned experimental method
It stands good, the pH value, Zeta potential value, zero charge potential value in different situations are different, but its corrosion product is all positively charged
Lotus.Negative electrical charge on capturing device band can be made by applying the voltage of 0.7V.Under identical voltage, the negative charge amount phase of band on capturing device
Together, under different situations, Zeta potential value is bigger, and deposition velocity of the corrosion product on trap is faster.
Usual Zeta potential represents the charged characteristic of colloid, and colloid surface is positively charged, and Zeta potential value is more than zero, instead
It, colloid surface is negatively charged, and Zeta potential value is less than zero.Potential value during colloid surface neutral is the zero charge of colloid
Current potential.
By above technical scheme it is found that the application provides a kind of corrosion product capturing device, by corrosion product capturing device
It is arranged in expansion drum 5, and one end of DC power supply 4 is connect with corrosion product capturing device, the other end connects with expansion drum 5
It connects.During using corrosion product capturing device, the water sampling first from the expansion drum of chilled water system 5；Then screening electrodes table is measured
The Zeta potential value of colloid in the Zeta potential value and water sample in face；Finally, according to the Zeta potential value and water on screening electrodes surface
The Zeta potential value of colloid in sample adjusts the voltage value between corrosion product capturing device and expansion drum 5, carries out corrosion product
Trapping.Set in expansion drum 5 corrosion product capturing device can efficient trapping corrosion product, reduce and corrode in inner cold water
The concentration of product, so as to reduce deposition of the corrosion product on screening electrodes.Due to corrosion product capturing device surface area very
Greatly, amount of collected is big, can effectively reduce deposition of the corrosion product on screening electrodes, extends the Clean after every of screening electrodes, reduces
The maintenance workload of converter valve improves the safety in operation of converter valve.On the other hand, since 5 actual internal area of expansion drum is very big,
The phenomenon that flow will not being caused to block in expansion drum 5.
Those skilled in the art will readily occur to the application its after considering specification and putting into practice application disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.Description and embodiments are considered only as illustratively, and the true scope of the application is pointed out by claim.
It should be understood that the precision architecture that the application is not limited to be described above and be shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.Above-described the utility model embodiment is not formed pair
The restriction of scope of protection of the utility model.
Claims (7)
1. a kind of corrosion product capturing device, which is characterized in that including：Electrode (1), several conducting wires (2) and solder joint (3)；
The conducting wire (2) is connected to by several solder joints (3) on the electrode (1)；
The solder joint (3) is uniformly distributed on the electrode (1)；
One end of several conducting wires (2) is connect with the electrode (1), the other end and DC power supply of several conducting wires (2)
(4) cathode connection；
The anode of the DC power supply (4) is connect with expansion drum (5)；
The conducting wire (2) is externally provided with wire socket；
The solder joint (3) is externally provided with solder joint protective case.
2. the apparatus according to claim 1, which is characterized in that the electrode (1) is grid electrode；The grid electrode
Spacing is equal.
3. the apparatus according to claim 1, which is characterized in that the electrode (1) is mesh electrode；The mesh electrode
Mesh form is square.
4. according to claim 2-3 any one of them devices, which is characterized in that the wire socket is thermoplastic dual-layer plastics
Casing.
5. device according to claim 4, which is characterized in that the solder joint protective case is fluid sealant.
6. device according to claim 4, which is characterized in that the electrode (1) is identical with the material of the conducting wire (2).
7. device according to claim 6, which is characterized in that the other end of several conducting wires (2) and the direct current
Source (4) is is detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721534691.9U CN207468260U (en) | 2017-11-16 | 2017-11-16 | A kind of corrosion product capturing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721534691.9U CN207468260U (en) | 2017-11-16 | 2017-11-16 | A kind of corrosion product capturing device |
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| CN207468260U true CN207468260U (en) | 2018-06-08 |
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ID=62260914
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902725A (en) * | 2017-11-16 | 2018-04-13 | 云南电网有限责任公司电力科学研究院 | A kind of corrosion product capturing device and method |
| CN111987484A (en) * | 2020-08-19 | 2020-11-24 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Array type electrode needle voltage-sharing electrode and preparation method thereof |
-
2017
- 2017-11-16 CN CN201721534691.9U patent/CN207468260U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902725A (en) * | 2017-11-16 | 2018-04-13 | 云南电网有限责任公司电力科学研究院 | A kind of corrosion product capturing device and method |
| CN107902725B (en) * | 2017-11-16 | 2023-11-17 | 云南电网有限责任公司电力科学研究院 | Corrosion product trapping device and method |
| CN111987484A (en) * | 2020-08-19 | 2020-11-24 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Array type electrode needle voltage-sharing electrode and preparation method thereof |
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