CN110567289A - Condenser with current anti-corrosion function - Google Patents
Condenser with current anti-corrosion function Download PDFInfo
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- CN110567289A CN110567289A CN201910864792.XA CN201910864792A CN110567289A CN 110567289 A CN110567289 A CN 110567289A CN 201910864792 A CN201910864792 A CN 201910864792A CN 110567289 A CN110567289 A CN 110567289A
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- water chamber
- condenser
- threading
- auxiliary anode
- cable
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- 238000005260 corrosion Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 238000005536 corrosion prevention Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 31
- 238000003825 pressing Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000004210 cathodic protection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/004—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using protective electric currents, voltages, cathodes, anodes, electric short-circuits
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a condenser with a current corrosion prevention function, which comprises a condenser main body, a current corrosion prevention module and a water tank, wherein the condenser main body comprises a water chamber, a heat exchange tube and a tube plate which are arranged in the water chamber; the current anti-corrosion module comprises a potentiostat, an auxiliary anode, a reference electrode, a cathode line and a zero-cathode line; the water chamber is provided with a threading hole, a supporting rod is further arranged in the water chamber, a mounting seat is arranged on the supporting rod, the auxiliary anode and the reference electrode are respectively mounted on the corresponding mounting seat, a cable connected with the auxiliary anode and a cable connected with the reference electrode are respectively sealed and penetrate through the threading hole, a cathode line is connected with the water chamber, and a cathode line is connected with the water chamber. The auxiliary anode and the reference electrode can be directly arranged on the mounting seat arranged on the supporting rod, so that the corrosion resistance of the condenser is improved.
Description
Technical Field
The invention relates to the technical field of robots, in particular to a condenser with a current corrosion prevention function.
Background
At present, a condenser is generally arranged in a coastal power station or a petrochemical plant, and the condenser is used for heat exchange. The conventional condenser generally comprises a water chamber and a heat exchange tube arranged in the water chamber, the heat exchange tube is arranged in the water chamber through a tube plate, and the heat exchange tube realizes heat exchange by introducing external seawater.
In order to improve the corrosion resistance, the heat exchange tubes and the tube plates are usually made of titanium, and the corrosion resistance methods matched with the titanium comprise a sacrificial anode method and an impressed current method. In the sacrificial anode method, a large amount of anodes are consumed in the actual use process, which results in high corrosion prevention cost. For the impressed current method, the auxiliary anode and the reference electrode are both installed on the outer wall surface of the water chamber, and as the integral volume of the condenser is larger, the cathodic protection current is smaller and the potential attenuation is more serious along with the increase of the distance from the auxiliary anode; meanwhile, for the heat exchange tube and the tube plate made of titanium, the potential of the heat exchange tube cannot be accurately detected by the reference electrode, so that the potential detection is inaccurate, the problem of hydrogen embrittlement or hydrogen damage of the titanium material is easy to occur, and the safety accident and the corrosion prevention effect of the equipment are poor.
The invention aims to solve the technical problem of how to design a technology which can ensure the safe operation of equipment and improve the anticorrosion effect.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the condenser with the current anti-corrosion function is provided, and the safety and the anti-corrosion effect of the condenser are improved.
The technical scheme provided by the invention is that the condenser with the current corrosion prevention function comprises a condenser main body, a current corrosion prevention module and a water tank, wherein the condenser main body comprises the water tank, a heat exchange tube and a tube plate which are arranged in the water tank; the current anti-corrosion module comprises a potentiostat, an auxiliary anode, a reference electrode, a cathode line and a zero cathode line, wherein the potentiostat is provided with a power supply output port, a detection port, a cathode port and a zero cathode port, the auxiliary anode is connected with the power supply output port through a cable, the reference electrode is connected with the detection port through a cable, the cathode line is connected with the grounding port, and the zero cathode line is connected with the zero cathode port; the water chamber is provided with a threading hole, a supporting rod is further arranged in the water chamber, a mounting seat is arranged on the supporting rod, the auxiliary anode and the reference electrode are respectively mounted on the corresponding mounting seat, a cable connected with the auxiliary anode and a cable connected with the reference electrode are respectively sealed and penetrate through the threading hole, a cathode line is connected with the water chamber, and a cathode line is connected with the water chamber.
Further, the auxiliary anode is positioned in the central area of the cavity formed by the water chamber.
Furthermore, a plurality of mutually independent sub-chambers are arranged in the water chamber, and the support rod, the auxiliary anode and the reference electrode are arranged in each sub-chamber; and the auxiliary anode is positioned in the central area of the cavity formed by the corresponding subchambers.
Further, the surface of hydroecium is provided with negative pole connecting terminal and zero negative connecting terminal, negative pole connecting terminal with the negative pole line is connected, zero negative connecting terminal with zero negative line is connected.
further, the cable located inside the water chamber extends along the support rod.
Furthermore, a protective sleeve is arranged outside the cable and bound on the supporting rod.
Furthermore, a sealing threading module is arranged in the threading hole, the sealing threading module comprises a threading column and a pressing head, a first wire passing hole is formed in the threading column, a step surface is formed in the first wire passing hole, a second wire passing hole is formed in the pressing head, the pressing head is arranged in the first wire passing hole, and a sealing ring is arranged between the pressing head and the step surface; the wire penetrating column is inserted into the wire penetrating hole and is welded on the water chamber in a sealing mode, a cable sequentially penetrates through the first wire passing hole, the sealing ring and the second wire passing hole from the inside of the water chamber to extend to the outside of the water chamber, and the sealing ring wraps the cable in a sealing mode.
Furthermore, an external thread is arranged on the outer surface of one end of the threading column, an annular retaining ring is arranged on the other end of the threading column, the annular retaining ring abuts against the outer surface of the water chamber, and the annular retaining ring is welded with the outer surface of the water chamber in a sealing mode; the sealing threading module further comprises a locking nut, the locking nut is located inside the water chamber and is connected to the threading column through the external threads in a threaded mode, and the locking nut is attached to the inner surface of the water chamber.
Compared with the prior art, the invention has the advantages and positive effects that: the supporting rods are arranged in the water chamber, and the auxiliary anode and the reference electrode can be directly arranged on the mounting seats arranged on the supporting rods, so that the mounting positions of the auxiliary anode and the reference electrode can be adjusted according to the positions of the heat exchange tube and the tube plate in the water chamber, the protection potential in the water chamber is uniformly distributed, and the maximum protection radius can be obtained to cover the central area of the tube plate; in addition, the reference electrode can directly measure the potential of the heat exchange tube and the tube plate, so that the accuracy of potential detection is effectively improved, and the phenomenon of hydrogen damage or hydrogen embrittlement of a titanium material can be reduced or avoided, so that the hydrogen embrittlement or hydrogen damage of the condenser is prevented, the condenser is always in a safe state and a comprehensive corrosion control state, and the corrosion resistance of the condenser is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a condenser with current corrosion prevention function according to the present invention;
FIG. 2 is a reference diagram of the use state of a sealing threading module in an embodiment of the condenser with the current corrosion prevention function;
FIG. 3 is a second schematic diagram of the condenser with current corrosion protection according to the embodiment of the present invention;
FIG. 4 is a schematic view of the front compartment of FIG. 3;
Fig. 5 is a schematic view of the rear compartment of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
as shown in fig. 1-2, the condenser with current anticorrosion function of the present embodiment includes a condenser main body, the condenser main body includes a water chamber 1, and a heat exchange tube and a tube plate (not shown) disposed in the water chamber 1, and the heat exchange tube is fixed to the water chamber 1 through the tube plate. The arrangement mode of the heat exchange tube and the tube plate in the water chamber 1 is different according to different specifications and use requirements, and the structural form of the condenser body in the embodiment is not limited and described herein. In order to realize the current anti-corrosion treatment of the condenser main body, the condenser also comprises a current anti-corrosion module 2; the current anti-corrosion module 2 comprises a potentiostat 21, an auxiliary anode 22, a reference electrode 23, a cathode line 24 and a zero-cathode line 25, wherein the potentiostat 21 is provided with a power supply output port, a detection port, a cathode port and a zero-cathode port, the auxiliary anode 22 is connected with the power supply output port through a cable, the reference electrode 23 is connected with the detection port through a cable, the cathode line 24 is connected with a grounding port, and the zero-cathode line 25 is connected with the zero-cathode port; wherein, be provided with through wires hole 11 on the hydroecium 1, still be provided with bracing piece 12 in the hydroecium 1, be provided with mount pad 13 on the bracing piece 12, auxiliary anode 22 and reference electrode 23 are installed respectively on corresponding mount pad 13, and cable 3 that auxiliary anode 22 connects and cable 3 that reference electrode 23 connects pass through wires hole 11 respectively sealedly, and the hydroecium 1 is connected to negative pole line 24, and zero negative line 25 connects hydroecium 1.
Specifically, in the condenser having the current corrosion prevention function according to the present embodiment, the auxiliary anode 22 and the reference electrode 23 are installed inside the water chamber 1 by forming the threading hole 11 in the water chamber 1, and the cable 3 connecting the auxiliary anode 22 and the reference electrode 23 is hermetically inserted through the threading hole 11. And in order to satisfy the requirement of installing the auxiliary anode 22 and the reference electrode 23 inside the water chamber 1, the support rod 12 is disposed inside the water chamber 1. The support rod 12 can be welded to fix the two ends of the support rod to the inner wall of the water chamber 1, and the corresponding mounting seats 13 are disposed on the support rod 12, so that the auxiliary anode 22 and the reference electrode 23 can be fixed through the corresponding mounting seats 13. On one hand, because the auxiliary anode 22 and the reference electrode 23 are positioned inside the water chamber 1, and the auxiliary anode 22 is positioned inside the water chamber 1 and is closer to the heat exchange tube and the tube plate, the protection radius of the auxiliary anode 22 can more effectively cover the heat exchange tube and the tube plate, so that the protection potential is uniformly distributed, and the heat exchange tube and the tube plate inside the water chamber 1 can obtain comprehensive current anticorrosion protection; on the other hand, the reference electrode 23 is also installed inside the water chamber 1, and the reference electrode 23 can be close to the tube plate for measurement, so that the measurement accuracy of the reference electrode 23 can be fully ensured, and hydrogen damage or hydrogen embrittlement of the titanium tube plate (titanium heat exchange tube) is avoided. For convenient field connection, the potentiostat 21 may be provided with a junction box 26, through which junction box 26 the connection to the auxiliary anode 22, the reference electrode 23, the cathode line 24 and the zero-cathode line 25 is made. For the concrete structural form of the junction box 26, a conventional wiring mode can be adopted, and no limitation is imposed.
Wherein, the operation parameters of the current anti-corrosion module 2 are obtained, which are specifically described as follows: a predetermined potential value V is input to the potentiostat 21Given aThe protection potential value is obtained by comparing the protection potential value measured by the reference electrode with the control signal V1 of the potentiostat 21 and the predetermined potential value V of the potentiostat 21Given aComparing, when the difference is different, there is a difference signal Δ V, and the protection current I is automatically adjusted by the potentiostat 21 according to the difference signal Δ V to make V1 equal to Vgiven aThe value meets the requirement that the potential of the protective body is not changed, and the principle of the full-automatic corrosion control system is also the constant potential working principle. For the condenser, the required protection current is I = Σ IiSi; wherein, Ii is the protection current density of various materials in the condenser under different coating conditions; si is the water immersion area of various materials in the condenser under different coating conditions, and the unit is m2 (for example, if Si is divided into a tube plate panel S1, a heat exchange tube panel S2 and a water chamber panel S3, Sigma S = S1+ S2+ S3). The maximum resistance in the protection current loop is the water-receiving resistance of the auxiliary anode 22, and the formula of the water-receiving resistance is that Ra = { ρ × (ln (4L/d) -1) }/π L, where Ra is the water-receiving resistance of a single auxiliary anode 22, and the unit is Ω; l is the anode body length in cm; d is the diameter of the auxiliary anode 22 in cm; ρ is the seawater resistivity in Ω. The number of anodes n = I/I a, I being the protection current required to be adjusted as described above; i a a single branch of auxiliary anode 22. The rated output voltage of the potentiostat 21 is obtained by calculation according to the formula V = IaRa +2+ K. Where K is the correlation factor, K = (0-50%) IaRa, preferably K =0.5IaR a. The calculation method for the operation parameters of the current anti-corrosion module 2 is not limited herein.
In order to facilitate connection of an external cable, a cathode connection terminal (not shown) and a zero-cathode connection terminal (not shown) are provided on an outer surface of the water chamber 1, the cathode connection terminal is connected to the cathode line 24, and the zero-cathode connection terminal is connected to the zero-cathode line 25. Specifically, the surface of hydroecium 1 can adopt welded mode to be provided with cathode connecting terminal and zero negative connecting terminal, and cathode connecting terminal can convenient and fast be connected with negative pole line 24 in hydroecium 1's outside more, and is the same, and zero negative connecting terminal can convenient and fast be connected with zero negative line 25 in hydroecium 1's outside more.
Preferably, in order to enable a more uniform distribution of the protection potential, an auxiliary anode 22 is provided in the central region of the cavity formed by the water chamber 1. Specifically, the auxiliary anode 22 is disposed in the central region of the cavity formed in the water chamber 1 according to the cavity structure formed in the water chamber 1. Like this, supplementary positive pole 22 can be more comprehensive cover the cavity that whole hydroecium 1 formed in the central zone of hydroecium 1 for the heat exchange tube and the tube sheet homoenergetic of each regional position department in hydroecium 1 can obtain more even protection potential, with the degree of effectual reduction potential decay, reach the heat exchange tube and the tube sheet homoenergetic of different positions department and can obtain enough big protection current, with the realization good electric current anticorrosion. Meanwhile, in the case of a large-sized condenser, as shown in fig. 3 to 5, the water chamber 1 is generally divided into a front chamber 101 and a rear chamber 102, and the front chamber 101 and the rear chamber 102 are divided into a plurality of independent sub-chambers 100 as needed, and each sub-chamber 100 is provided with a support rod 12, an auxiliary anode 22, and a reference electrode 23; wherein the auxiliary anode 22 is located in the central region of the cavity formed by the corresponding sub-chambers. Specifically, the support rod 12 is arranged in each sub-chamber 100 to install the auxiliary anode 22 and the reference electrode 23, so that the heat exchange tubes and tube plates in each sub-chamber 100 can be effectively and pertinently protected from corrosion by current.
Further, since the condenser has a large amount of water flowing during the use, and the water flow will affect the cables 3 in the water chamber 1, in order to improve the use reliability, the cables 3 inside the water chamber 1 extend along the support rod 12. Specifically, the cable 3 is guided and supported and positioned by the support rod 12, so that the cable 3 can enhance the resistance to water flow impact, and the use reliability is improved. Preferably, the cable 3 is externally provided with a protective sleeve 4, and the protective sleeve 4 located inside the water chamber 1 is bound to the support rod 12. Specifically, the protective sleeve 4 can protect the cable 3 externally, so as to improve the use reliability of the cable 3 and prolong the service life thereof. Meanwhile, the protective sleeve 4 wraps the cable 3 and then is integrally bound and fixed on the supporting rod 12 through binding components such as a binding belt, so that the installation stability of the cable 3 can be improved more effectively. The cable 3 can be better kept at the installation position under the condition of long-time water flow impact, so that more reliable running performance can be obtained.
furthermore, in order to ensure that the cable 3 can pass through the water chamber 1 in a sealed manner, the threading hole 11 is provided with the sealing threading module 5, the sealing threading module 5 comprises a threading column 51 and a pressing head 52, a first wire passing hole is formed in the threading column 51, a step surface is formed in the first wire passing hole, a second wire passing hole is formed in the pressing head 52, the pressing head 52 is arranged in the first wire passing hole, and a sealing ring 53 is arranged between the pressing head 52 and the step surface; the threading post 51 is inserted in the threading hole 11 and is sealed and welded on the water chamber 1, the cable sequentially passes through the first wire routing hole, the sealing ring 53 and the second wire routing hole from the inside of the water chamber 1 and extends to the outside of the water chamber 1, and the sealing ring 53 is sealed and wrapped on the cable 3. Specifically, after being inserted into the threading hole 11, the threading column 51 is hermetically connected in the water chamber 1 in a welding mode, the connection part between the threading column 51 and the threading hole 11 is sealed through a welding seam, and the pressing head 52 is located in the first threading hole. The cable 3 is led out from the inside of hydroecium 1 via first wire hole and second wire hole, compresses tightly sealing washer 53 on the step face through pressure head 52, and sealing washer 53 receives behind the extrusion deformation will inseparable sealed parcel live cable 3 to the realization is sealed the processing to cable 3. Wherein, an internal thread is formed in the first wiring hole, and the pressing head 52 is installed in the first wiring hole by adopting a threaded connection mode.
In addition, in order to facilitate installation and fixation of threading post 51, the outer surface of one end of threading post 51 is provided with an external thread, the other end of threading post 51 is provided with an annular retaining ring 511, and sealing threading module 5 further comprises a locking nut 54, wherein locking nut 54 is located inside water chamber 1 and is screwed on threading post 51 through the external thread, and locking nut 54 is attached to the inner surface of water chamber 1. Specifically, after the threading post 51 is installed in the threading hole 11, the annular retainer ring 511 abuts against the outer wall of the water chamber 1. The threading post 51 is pre-fixed on the water chamber 1 from the inside of the water chamber 1 through a locking nut 54, and then the connecting part between the annular retaining ring 511 and the water chamber 1 is welded on the outside of the water chamber 1 through a welding gun, so that the annular retaining ring 511 and the outer surface of the water chamber 1 are welded together in a sealing manner; then, locknut 54 is loosened inside water chamber 1, and wire penetrating column 51 is welded to the inner wall of water chamber 1 from inside water chamber 1; finally, the locking nut 54 is again tightened on the post 51. By installing the sealing thread module 5 in the above manner, it is possible to ensure a good sealing weld zone between the thread passing post 51 and the inner and outer walls of the water chamber 1, thereby improving the sealing performance.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A condenser with a current anticorrosion function comprises a condenser main body, wherein the condenser main body comprises a water chamber, a heat exchange tube and a tube plate which are arranged in the water chamber, and is characterized by further comprising a current anticorrosion module;
The current anti-corrosion module comprises a potentiostat, an auxiliary anode, a reference electrode, a cathode line and a zero cathode line, wherein the potentiostat is provided with a power supply output port, a detection port, a cathode port and a zero cathode port, the auxiliary anode is connected with the power supply output port through a cable, the reference electrode is connected with the detection port through a cable, the cathode line is connected with the grounding port, and the zero cathode line is connected with the zero cathode port;
The water chamber is provided with a threading hole, a supporting rod is further arranged in the water chamber, a mounting seat is arranged on the supporting rod, the auxiliary anode and the reference electrode are respectively mounted on the corresponding mounting seat, a cable connected with the auxiliary anode and a cable connected with the reference electrode are respectively sealed and penetrate through the threading hole, a cathode line is connected with the water chamber, and a cathode line is connected with the water chamber.
2. The condenser with current corrosion prevention function according to claim 1, wherein the auxiliary anode is located in a central region of a cavity formed by the water chamber.
3. the condenser with current corrosion prevention function according to claim 1, wherein a plurality of mutually independent sub-chambers are arranged in the water chamber, and the support rod, the auxiliary anode and the reference electrode are arranged in each sub-chamber; and the auxiliary anode is positioned in the central area of the cavity formed by the corresponding subchambers.
4. The condenser with current corrosion prevention function according to claim 1, wherein a cathode connection terminal and a zero-cathode connection terminal are provided on an outer surface of the water chamber, the cathode connection terminal is connected to the cathode line, and the zero-cathode connection terminal is connected to the zero-cathode line.
5. The condenser with current corrosion prevention function according to claim 1, wherein a cable inside the water chamber is arranged to extend along the support rod.
6. The condenser with the current corrosion prevention function as claimed in claim 5, wherein a protective sleeve is arranged outside the cable, and the protective sleeve is bound on the support rod.
7. The condenser with the current anticorrosion function according to claim 1, wherein a sealing threading module is arranged in the threading hole, the sealing threading module comprises a threading post and a pressing head, a first wire passing hole is formed in the threading post, a step surface is formed in the first wire passing hole, a second wire passing hole is formed in the pressing head, the pressing head is arranged in the first wire passing hole, and a sealing ring is arranged between the pressing head and the step surface; the wire penetrating column is inserted into the wire penetrating hole and is welded on the water chamber in a sealing mode, a cable sequentially penetrates through the first wire passing hole, the sealing ring and the second wire passing hole from the inside of the water chamber to extend to the outside of the water chamber, and the sealing ring wraps the cable in a sealing mode.
8. The condenser with the current corrosion prevention function according to claim 7, wherein an external thread is arranged on the outer surface of one end of the threading column, an annular retaining ring is arranged on the other end of the threading column, the annular retaining ring abuts against the outer surface of the water chamber, and the annular retaining ring is welded with the outer surface of the water chamber in a sealing manner; the sealing threading module further comprises a locking nut, the locking nut is located inside the water chamber and is connected to the threading column through the external threads in a threaded mode, and the locking nut is attached to the inner surface of the water chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864792.XA CN110567289A (en) | 2019-09-09 | 2019-09-09 | Condenser with current anti-corrosion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864792.XA CN110567289A (en) | 2019-09-09 | 2019-09-09 | Condenser with current anti-corrosion function |
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| CN110567289A true CN110567289A (en) | 2019-12-13 |
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| CN201910864792.XA Pending CN110567289A (en) | 2019-09-09 | 2019-09-09 | Condenser with current anti-corrosion function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813434A (en) * | 2021-02-03 | 2021-05-18 | 中国华电科工集团有限公司 | Anticorrosive protection system of interior equipment of power plant water intaking room |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD220344A2 (en) * | 1983-11-22 | 1985-03-27 | Bergmann Borsig Veb | CATHODIC PROTECTION SYSTEM FOR ROEHRENWAERMETAUSCHER, FOR EXAMPLE, FOR SURFACE CONDENSERS |
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| CN211120711U (en) * | 2019-09-09 | 2020-07-28 | 青岛赢海防腐防污技术有限公司 | Condenser with current anti-corrosion function |
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| CN112813434A (en) * | 2021-02-03 | 2021-05-18 | 中国华电科工集团有限公司 | Anticorrosive protection system of interior equipment of power plant water intaking room |
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