CN109881203A - A kind of closed tank cathodic protection potential monitoring device - Google Patents
A kind of closed tank cathodic protection potential monitoring device Download PDFInfo
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- CN109881203A CN109881203A CN201910237312.7A CN201910237312A CN109881203A CN 109881203 A CN109881203 A CN 109881203A CN 201910237312 A CN201910237312 A CN 201910237312A CN 109881203 A CN109881203 A CN 109881203A
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Abstract
The present invention relates to a kind of closed tank cathodic protection potential monitoring devices; including monitor and reference electrode; the monitor and the reference electrode pass through cable connection; the monitor and the closed storage tank pass through cable connection; the reference electrode is located in the closed storage tank, and the monitor is located at outside the closed storage tank.It can be to the high potential monitoring containing closed tank cathodic protection (sacrificial anode/impressed current) under the corrosive environments such as H2S, high temperature, high saliferous oil gas water; evaluate the effect of reservoir walls cathodic protection; to be adjusted in time, to extend the use time of equipment.
Description
Technical field
The present invention relates to safety monitorings and field of corrosion prevention, and in particular to a kind of closed tank cathodic protection potential monitoring
Device.
Background technique
Development and deep development with industrial gas oil, the especially high exploitation containing H2S and high saliferous oil gas field,
Corrosive media increasingly increases in oil gas field Produced Liquid, brings great wind to the safety and steady operation of oil gas field ground installation
Danger, more stringent requirements are proposed for corrosion protection and corrosion monitoring especially for try production large-scale storage tank.Currently,
Try production storage tank is mostly closed system, on the one hand avoids the leakage of tank inside H2S from endangering station personnel safety, separately
On the one hand the entrance of outside air is avoided, the especially entrance of O2 substantially increases oil gas under high saline media operating condition
The corrosion disclosure risk of field try production.However, existing tank inside cathodic protection at present mostly uses sacrificial anode
Method, and the monitoring device of not set cathodic protection potential can not be monitored and assess to tank inside cathodic protection effect；
Impressed current cathode protecting process is used for tank inside, is chiefly used in without H2S environment and/or non-closed system, monitoring
Device is relatively single.Therefore, in order to preferably solve the problems, such as to realize containing the closed tank inside cathodic protection monitoring of H2S
The real-time accurate measurements of tank inside cathodic protection potential, in time effectively assess tank cathodic protection effect, and having must
It designs that a kind of structure is simple, reliable performance, safety and stability, real-time monitoring, can be good at solving close under hydrogen-sulfide environmental
Close the monitoring device of tank inside cathodic protection.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind to be suitable for height containing corruption such as H2S, high temperature, high saliferous oil gas water
The potential monitoring device of closed tank cathodic protection (sacrificial anode/impressed current) under corrosion environment evaluates reservoir walls cathode
The effect of protection.
The technical scheme to solve the above technical problems is that a kind of closed tank cathodic protection potential monitoring dress
It sets, including monitor and reference electrode, the monitor and the reference electrode are by cable connection, the monitor and described
Closed storage tank is located in the closed storage tank by cable connection, the reference electrode, and the monitor is located at the closed storage
Outside tank.
The beneficial effects of the present invention are: can be to height containing closed under the corrosive environments such as H2S, high temperature, high saliferous oil gas water
Tank cathodic protection (sacrificial anode/impressed current) carry out potential monitoring, evaluate reservoir walls cathodic protection effect, so as to and
When be adjusted, thus extend equipment use the time.
Based on the above technical solution, the present invention can also be improved as follows:
It further, further include reference electrode junction box, the reference electrode junction box and the monitor pass through connection electricity
Cable connection, the reference electrode junction box and the reference electrode pass through reference electrode cable connection, the reference electrode wiring
Case is fixed on the closed storage tank shell.
Beneficial effect using above-mentioned further scheme is to improve the sealing performance of equipment, on the one hand avoids tank inside
The leakage of H2S endangers station personnel safety, on the other hand avoids the entrance of the entrance of outside air, especially O2, contains in height
Under salt medium operating condition, the corrosion disclosure risk of oil gas field try production is substantially increased.
Further, the reference electrode junction box includes reference electrode wiring tank shell, seal cover board, gasket seal, electricity
Cable seals Glan, terminal plate and connection terminal, and the reference electrode wiring tank shell upper end or side have the first opening, described
Reference electrode wiring tank shell lower end has the second opening, and the seal cover board is sealedly and fixedly connected in the reference electrode wiring
First open-mouth of tank shell, the cable seal Glan are fixed on the reference electrode junction box housing sidewall or roof,
The connection terminal and the terminal plate are located inside the reference electrode junction box, and the connection terminal and the terminal plate are solid
Fixed connection, the terminal plate are fixedly connected with the reference electrode wiring tank shell, reference electrode cable one end with it is described
Reference electrode is connected, and the reference electrode cable other end passes through second opening and is connected with the connection terminal, described
Connecting cable one end is connected with the monitor, the connecting cable other end pass through the cable seal Glan and with the company
Connecting terminal is connected.
Beneficial effect using above-mentioned further scheme is that seal cover board is sealedly and fixedly connected in the reference electrode wiring
Tank shell can dismantle the two, installation convenient to overhaul, and cable seal Glan is arranged on reference electrode junction box and is conducive to improve
The sealing performance of whole equipment.
It further, further include gasket seal, the gasket seal is located at the seal cover board and the reference electrode wiring
Between tank shell, the sealing between the seal cover board and the reference electrode wiring tank shell is realized.
Beneficial effect using above-mentioned further scheme is that had between seal cover board and wiring tank shell using gasket seal
Conducive to further increasing for whole equipment sealing performance.
It further, further include hollow supporting section, the supporting section upper end is fixed with reference electrode junction box lower end
Connection, the supporting section lower end are fixedly connected with the closed tank body, and the supporting section is connected with the closed storage tank, described
Supporting section is connected with the reference electrode junction box by second opening.
Beneficial effect using above-mentioned further scheme is supporting section support reference electrode junction box, while facilitating junction box
Installation and removal.
Further, the supporting section is divided into supporting section and lower supporting section, the upper end of the upper supporting section and the reference
Electrode connection case lower end is fixedly connected, and the lower end of the upper supporting section is fixedly connected with the upper end of the lower supporting section, under described
The lower end of supporting section is fixedly connected with sealing storage tank.
Beneficial effect using above-mentioned further scheme is that supporting section is divided into two sections, facilitates the assembling, disassembly, ginseng of device
Than the taking-up of electrode and being put into for reference electrode, to be conducive to the maintenance in later period.
Further, the lower end of the upper supporting section has first flange, and the upper end of the lower supporting section has second flange,
The first flange is fixedly connected with the second flange.
Beneficial effect using above-mentioned further scheme be realized by flange the close of upper supporting section and lower supporting section and
It is firmly installed in together.
It further, further include wound gasket, the wound gasket is realized between the first flange and the second flange
Sealing between the upper supporting section and the lower supporting section.
Beneficial effect using above-mentioned further scheme is to increase wound gasket, further improves and connects between two supporting sections
The leakproofness connect.
It further, further include rod iron, nylon rope and weight, the inside of the supporting section is fixed at the both ends of the rod iron
Wall, described nylon rope one end are fixed on the rod iron, and the nylon rope other end connects the weight, and the reference electrode is solid
Due on the nylon rope, the weight is located in the closed storage tank.
Beneficial effect using above-mentioned further scheme is that rod iron is used to hang weight by nylon rope, and nylon rope is hung with
Weight has good stability so that nylon rope is not easy to shake with pot liquid or gas flowing.
It further, further include band, the reference electrode and the reference electrode junction box are connected by reference electrode cable
It connects, the reference electrode cable is fixedly connected with the nylon rope by the band, the reference electrode and the nylon rope
It is fixedly connected by the band.
Beneficial effect using above-mentioned further scheme is that nylon rope is hung with weight, so that nylon rope is not easy in tank
Liquid or gas are flowed and are shaken, and have good stability, reference electrode cable and reference electrode are fixed on nylon rope
On, the stability of reference electrode is increased, so that monitor is more stable by the data that reference electrode is read；It is pricked using nylon
Band is fixed, easy to disassemble.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is schematic diagram of the present invention；
Fig. 3 is schematic diagram of the present invention；
Fig. 4 is partial enlargement diagram of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, monitor, 2, connecting cable, 3, reference electrode junction box, 4, upper supporting section, 5, rod iron, 6, first flange, 7,
Wound gasket, the 8, first washer, the 9, first nut, 10, studs, 11, second flange, 12, lower supporting section, 13, tank deck, 14,
Rectangular shackle, 15, clip, 16, nylon rope, 17, band, 18, reference electrode cable, 19, reference electrode, 20, weight, 21, tank
Bottom plate, 22, pot sidewall, 23, monitoring cable connectors, 24, monitoring cable, 25, reference electrode wiring tank shell, 26, cable it is close
Envelope Glan, the 27, second nut, 28, second packing ring, 29, gasket seal, the 30, second bolt, 31, seal cover board, 32, terminal plate,
33, connection terminal, 34, fixed part.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Embodiment
A kind of closed tank cathodic protection potential monitoring device, including monitor 1 and reference electrode 19, the monitor 1
Cable connection, the reference electricity are passed through by cable connection, the monitor 1 and the closed storage tank with the reference electrode 19
Pole 19 is located in the closed storage tank, and the monitor 1 is located at outside the closed storage tank.
Specifically, monitor and reference electrode are connected by connecting cable 2, closed storage tank tank deck 13 has opening and cable
It is adapted, guarantees the airtightness of storage tank, sealing ring can also be set in the aperture position of closed storage tank, cable passes through sealing ring, real
The sealed connection of existing reference electrode and monitor.
Monitor and tank body are connected by monitoring cable 24, the position setting monitoring cable connection for needing to measure on tank body
Part 23 for stationary monitoring cable and realizes contact of the monitoring cable with tank body, and monitoring cable connectors are preferably disposed on tank side
22 outside of wall.Specifically, monitoring cable connectors 23 include steel plate, bolt, nut and connector lug, bolt hole is had on steel plate,
The specially carbon steel steel plate (specification be 50mm × 50mm × 5mm) with φ 10mm bolt hole, on screw bolt passes steel plate
Hole on bolt hole and connector lug, bolts and nuts are connected through a screw thread, and steel plate and connector lug are realized in the connection of screw bolt and nut
Be fixedly connected, connector lug material is copper alloy, and one end of steel plate is welded in closed storage tank side-wall outer side, monitors cable one end
It is inserted into the wire barrel of connector lug, realizes that one end of monitoring cable is fixed on closed storage tank and is connected electrically, monitor cable
The other end be connected to monitor, realize being electrically connected for closed storage tank and monitor.
Specific monitor can be test pile or potentiostat (such as: specification is 50V/50A or 50V/30A).
Further include reference electrode junction box 3 as the present embodiment further embodiment, the reference electrode junction box 3 with
The monitor 1 is connected by connecting cable 2, and the reference electrode junction box 3 passes through reference electrode with the reference electrode 19
Cable 18 connects, and the reference electrode junction box 3 is fixed on the closed storage tank shell.
Specifically, it should be noted that connecting cable and reference electrode cable are the electricity for connecting monitor and reference electrode
Cable.
It is connected, is connect by reference electrode cable 18 specifically, junction box is welded in tank deck 13, junction box and reference electrode
The reference electrode number that line case is connected can be depending on storage tank height and volume.
As the present embodiment further embodiment, such as Fig. 1-3, the reference electrode junction box 3 includes reference electrode wiring
Tank shell 25, seal cover board 31, gasket seal 29, cable seal Glan 26, terminal plate 32 and connection terminal 33, the reference electricity
25 upper end of pole wiring tank shell or side have the first opening, and 25 lower end of reference electrode wiring tank shell has second to open
Mouthful, the seal cover board 31 is sealedly and fixedly connected in the first open-mouth of the reference electrode wiring tank shell 25, the cable
Sealing Glan 26 is fixed on 25 side wall of reference electrode wiring tank shell or roof, the connection terminal 33 and the wiring
Plate 32 is located inside the reference electrode junction box 3, and the connection terminal 33 is fixedly connected with the terminal plate 32, the wiring
Plate 32 is fixedly connected with the reference electrode wiring tank shell 25, described 18 one end of reference electrode cable and the reference electrode 19
It is connected, 18 other end of reference electrode cable passes through second opening and is connected with the connection terminal 33, the connection
2 one end of cable is connected with the monitor 1,2 other end of connecting cable pass through the cable seal Glan 26 and with it is described
Connection terminal 33 is connected.
Specifically, connecting cable one end is connect with monitor such as Fig. 1-3, the other end enters junction box by sealing Glan
It is connected with the connection terminal on terminal plate, sealing Glan realizes connecting cable and the sealing of junction box；Reference electrode cable
One end is connected with reference electrode, and the other end enters junction box by the second opening and is connected with connection terminal corresponding on terminal plate.
It further include gasket seal 29 as the present embodiment further embodiment, the gasket seal 29 is located at the sealing
Between cover board 31 and the reference electrode wiring tank shell 25, the seal cover board 31 and the reference electrode wiring box shell are realized
Sealing between body 25.
Specifically, such as Fig. 1-2, the outwardly extending elongated end in reference electrode junction box upper part of the housing edge, elongated end setting
Bolt hole is arranged in the corresponding position of bolt hole, seal cover board and gasket seal, and the second bolt 30 passes sequentially through seal cover board, sealing
Bolt hole on gasket and elongated end, the second bolt 30 and the second nut 27 are connected through a screw thread, and second packing ring 28, which is folded in, prolongs
It stretches between end and the second nut 27, second packing ring 28 is steel packing ring, can realize seal cover board and reference by screw bolt and nut
Electrode connection tank shell is fixedly connected, and realizes sealed connection well by gasket seal and second packing ring.
Specifically, there is fixed part 34, fixed part is cylindrical body, cylindrical member at one end and terminal plate phase on terminal plate such as Fig. 3
Even, the other end is connected with the case inside of reference electrode junction box, is fixed on reference electrode junction box, cylinder for terminal plate
Body number is 4, is located at the position at four angles of terminal plate.
It further include hollow supporting section as the present embodiment further embodiment, the supporting section upper end and the reference
3 lower end of electrode connection case is fixedly connected, and the supporting section lower end is fixedly connected with the closed tank body, the supporting section and described
Closed storage tank is connected, and the supporting section is connected with the reference electrode junction box 3 by second opening.
Specifically, supporting section is anti-H 2 S carbon steel pipe, supporting section is preferably vertically arranged.
As the present embodiment further embodiment, such as Fig. 1, the supporting section is divided into supporting section 4 and lower supporting section 12, institute
The upper end for stating supporting section 4 is fixedly connected with 3 lower end of reference electrode junction box, the lower end of the upper supporting section 4 and described
The upper end of lower supporting section 12 is fixedly connected, and the lower end of the lower supporting section 12 is fixedly connected with sealing storage tank.
Specifically, upper supporting section and lower supporting section are anti-H 2 S carbon steel adapter tube
As the present embodiment further embodiment, such as Fig. 1, the lower end of the upper supporting section 4 has first flange 6, described
The upper end of lower supporting section 12 has second flange 11, and the first flange 6 is fixedly connected with the second flange 11.
Specifically, flange is anti-H 2 S simple steel flange, such as Fig. 1 further includes the first washer 8, the first nut 9 and double end spiral shell
Column 10, the first washer 8 are that steel packing ring, first flange and second flange are fixed by studs 10 and the first nut 9, double end
The both ends of stud are threadedly coupled two the first nuts respectively, and the first washer is folded between the first nut and two flanges.
It further include wound gasket 7 as the present embodiment further embodiment, the wound gasket 7 is located at 6 He of first flange
Between the second flange 11, the sealing between the upper supporting section 4 and the lower supporting section 12 is realized.
Specifically, wound gasket is folded between first flange and second flange such as Fig. 1, the material of wound gasket be 316L not
Become rusty steel+graphite wound gasket.
It further include rod iron 5, nylon rope 16 and weight 20, the both ends of the rod iron 5 as the present embodiment further embodiment
It is fixed on the inner sidewall of the supporting section, described 16 one end of nylon rope is fixed on the rod iron 5,16 other end of nylon rope
The weight 20 is connected, the reference electrode 19 is fixed on the nylon rope 16, and the weight 20 is located at the closed storage tank
It is interior.
Specifically, rod iron is anti-H 2 S carbon steel rod, such as Fig. 1, rod iron is preferably horizontal positioned, and rod iron is preferably welded to
Supporting section.
Specifically, further including rectangular shackle 14 such as Fig. 1, rectangular shackle is stainless steel material, and rectangular shackle is buckled in rod iron 5
On, so that shackle casing is set to outside rod iron, it is completed at the same time and is arranged in rear shackle that still there are one end that gap, nylon rope are connect with rod iron
It is contacted, the part stainless steel lathe dog 15 of contact with nylon rope other parts (close to the position of rod iron) again after rectangular shackle
It is fixed, to realize that rod iron is fixed in nylon rope one end, one end that nylon rope is connect with weight after the hanging ring on weight again
It is contacted with the other parts (close to the position of weight) of nylon rope, the part of contact is also fixed with stainless steel lathe dog.
It further include band 17 as the present embodiment further embodiment, such as Fig. 1, the reference electrode 19 and the reference
Electrode connection case 3 is connected by reference electrode cable 18, and the reference electrode cable 18 and the nylon rope 16 pass through the bundle
Band 17 is fixedly connected, and the reference electrode 19 is fixedly connected with the nylon rope 16 by the band 17.
Material or technique of the invention are illustrated:
First washer and second packing ring are steel packing ring；Supporting section, flange and rod iron use anti-H 2 S carbon steel or
Anti-H 2 S low alloy material；
Rectangular shackle and clip use stainless steel material；
Weight uses stainless steel material；
Terminal plate uses polypropylene material；
Band is nylon cable tie；
Reference electrode cable 18, material are the copper core cable of neoprene protective layer, and specification 10m2 is suitable for high temperature and soaks
Environment is steeped, soaking depth is up to 100 meters, and highest Applicable temperature is 85 DEG C, waterproofing grade IPX8；
Connecting cable 2 and monitoring 24 material of cable are the copper core cable of XLPE/AWA/PVC protective layer, specification 10m2；
Reference electrode wiring tank shell 25 and seal cover board 31 are anti-H 2 S carbon steel or the low conjunction of anti-H 2 S using material
Golden material；
Anti-H 2 S low alloy material (ASTM A193 B7M and A194 2HM) is respectively adopted in screw bolt and nut；
Sealing spirotallic gasket is SS316L+ graphite material；
The selection of anti-H 2 S carbon steel and/or anti-H 2 S low-alloy steel material, solve under H2S environment hydrogen induced cracking (HIC) and
The risk of sulfide-stress cracking；
According to the ingredient (such as: C 1 content) of medium in storage tank, Cu/CuSO4 reference electrode or Ag/AgCl ginseng can be used
Than electrode, general hyposaline medium selects Cu/CuSO4 reference electrode, and high saline media selects Ag/AgCl reference electrode, reference
The precision of electrode is not less than ± 20mV, and stability is not less than ± 5mV, and the quantity of reference electrode need to be according to the size and highest of storage tank
The height of liquid level determines；
The quantity of the sealing Glan of the quantity and reference electrode junction box of connecting terminal is true according to the quantity of reference electrode
It is fixed；
Stainless steel weight 20 realizes the fixation and positioning of reference electrode, reference electrode apart from nearest storage tank side wall 22 about
500mm, the reference electrode of bottommost is apart from the about 500mm of storage tank bottom plate 21, and according to the size of tank volume and highest liquid level
Height determine quantity and the position of reference electrode, multiple reference electrodes are installed, should be uniformly distributed, each reference electrode
Spacing be generally 3-4m；It can also be uniformly distributed in storage tank circumferencial direction, often according to demand using more set reference electrode junction boxes
A reference electrode junction box can have several reference electrodes, to realize the monitoring to entire tank cathodic protection current potential.
Used in the present invention welding (welding of such as flange and supporting section, the welding of reference electrode junction box and supporting section,
The welding of lower supporting section and storage tank tank deck, the welding etc. of rod iron and upper supporting section side wall) using H2S environment welding procedure and low
The low-phosphorous sulphur wlding of hydrogen ensures the performance of anti-the H2S hydrogen induced cracking (HIC) and sulfide-stress cracking of cathodic protection monitoring device；
Cathodic protection potential monitoring can be used universal meter and measure on test pile or be carried using potentiostat
Potential monitoring instrument be read out.
The course of work:
Rod iron is welded in upper supporting section, the both ends of rod iron are welded in the side wall of supporting section, by the rectangular shackle of stainless steel
Rear enclosure is opened on the outside of rod iron, one end of nylon rope passes through the rectangular shackle of stainless steel and the selected part of nylon rope (close to steel
Stick) part of contact is fixed with stainless steel lathe dog after contact, equally, the other end of nylon rope passes through weight hanging ring and nylon rope
The part of contact is fixed with stainless steel lathe dog after another selected part (close to weight end) contact；
Reference electrode junction box is welded in upper supporting section upper end, reference electrode cable one end connects reference electrode, another
End enters junction box across the second opening of reference electrode junction box and is connected with the connection terminal inside junction box；
Reference electrode cable ties together the two with interval setting nylon cable tie on nylon rope, reference electrode and nylon rope
It contacts and passes through nylon cable tie for the two bundled fixed；
Connecting cable one end connects monitor, the other end pass through cable seal Glan enter after junction box with corresponding connection
Terminal is connected；
Upper supporting section is connected with stainless steel weight, reference electrode, reference electrode cable, reference electrode junction box at this time.
The supporting section under the welding of tank body opening, wound gasket is placed on lower supporting section flange, then by upper supporting section
The stainless steel weight and reference electrode connected is put into tank, then upper supporting section flange correspondence is placed on wound gasket, upper branch
Support section is fixedly connected with lower supporting section by flange, realizes being fixedly connected for first flange and second flange with screw bolt and nut,
The first washer is first inserted in bolt before being packed into nut, and and flange contact, refill top nut；
The weld monitor cable connectors on the outside of pot sidewall, monitoring cable one end are connected with monitor, the other end and setting
Monitoring cable connectors on tank body are connected, to realize the connection of monitor Yu closed storage tank.
It opens monitor or the current potential of closed storage tank metal inner surface can be monitored and be adjusted in time using universal meter
Whole closed tank inside cathodic protection.
In the description of the present invention, it should be noted that term " on ", "lower", "front", "rear", "left", "right", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this hair
Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only,
It is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of closed tank cathodic protection potential monitoring device, which is characterized in that including monitor (1) and reference electrode
(19), the monitor (1) and the reference electrode (19) pass through cable connection, the monitor (1) and the closed storage tank
By cable connection, the reference electrode (19) is located in the closed storage tank, and the monitor (1) is located at the closed storage tank
Outside.
2. a kind of closed tank cathodic protection potential monitoring device according to claim 1, which is characterized in that further include reference
Electrode connection case (3), the reference electrode junction box (3) are connect with the monitor (1) by connecting cable (2), the ginseng
It is connect with the reference electrode (19) by reference electrode cable (18) than electrode connection case (3), the reference electrode junction box
(3) it is fixed on the closed storage tank shell.
3. a kind of closed tank cathodic protection potential monitoring device according to claim 2, which is characterized in that the reference electricity
Pole junction box (3) includes reference electrode wiring tank shell (25), seal cover board (31), gasket seal (29), cable seal Glan
(26), terminal plate (32) and connection terminal (33), the reference electrode wiring tank shell (25) upper end or side have first to open
Mouthful, the reference electrode wiring tank shell (25) lower end have it is second open, the seal cover board (31) be sealedly and fixedly connected in
First open-mouth of the reference electrode wiring tank shell (25), the cable seal Glan (26) are fixed on the reference electrode
On wiring tank shell (25) side wall or roof, the connection terminal (33) and the terminal plate (32) are located at the reference electrode and connect
Line case (3) is internal, and the connection terminal (33) is fixedly connected with the terminal plate (32), the terminal plate (32) and the reference
Electrode connection tank shell (25) is fixedly connected, and described reference electrode cable (18) one end is connected with the reference electrode (19), institute
It states reference electrode cable (18) other end to pass through second opening and be connected with the connection terminal (33), the connecting cable
(2) one end is connected with the monitor (1), connecting cable (2) other end pass through the cable seal Glan (26) and with
The connection terminal (33) is connected.
4. a kind of closed tank cathodic protection potential monitoring device according to claim 3, which is characterized in that further include sealing
Gasket (29), the gasket seal (29) be located at the seal cover board (31) and the reference electrode wiring tank shell (25) it
Between, realize the sealing between the seal cover board (31) and the reference electrode wiring tank shell (25).
5. a kind of closed tank cathodic protection potential monitoring device according to claim 3, which is characterized in that further include hollow
Supporting section, the supporting section upper end is fixedly connected with reference electrode junction box (3) lower end, the supporting section lower end and institute
It states closed tank body to be fixedly connected, the supporting section is connected with the closed storage tank, and the supporting section and the reference electrode connect
Line case (3) is connected by second opening.
6. a kind of closed tank cathodic protection potential monitoring device according to claim 4, which is characterized in that the supporting section
It is divided into supporting section (4) and lower supporting section (12), under the upper end and the reference electrode junction box (3) of the upper supporting section (4)
End is fixedly connected, and the lower end of the upper supporting section (4) is fixedly connected with the upper end of the lower supporting section (12), the lower supporting section
(12) lower end is fixedly connected with sealing storage tank.
7. a kind of closed tank cathodic protection potential monitoring device according to claim 5, which is characterized in that the upper support
The lower end of section (4) has first flange (6), and the upper end of the lower supporting section (12) has second flange (11), first method
Blue (6) are fixedly connected with the second flange (11).
8. a kind of closed tank cathodic protection potential monitoring device according to claim 6, which is characterized in that further include winding
It pads (7), the wound gasket (7) realizes the upper supporting section between the first flange (6) and the second flange (11)
(4) sealing between the lower supporting section (12).
9. according to a kind of any one of claim 5 to 8 closed tank cathodic protection potential monitoring device, which is characterized in that
It further include rod iron (5), nylon rope (16) and weight (20), the inner sidewall of the supporting section is fixed at the both ends of the rod iron (5),
Described nylon rope (16) one end is fixed on the rod iron (5), and nylon rope (16) other end connects the weight (20), institute
It states reference electrode (19) to be fixed on the nylon rope (16), the weight (20) is located in the closed storage tank.
10. a kind of closed tank cathodic protection potential monitoring device according to claim 8, which is characterized in that further include pricking
Band (17), the reference electrode (19) and the reference electrode junction box (3) are connected by reference electrode cable (18), the ginseng
It is fixedly connected than electrode cable (18) and the nylon rope (16) by the band (17), the reference electrode (19) and described
Nylon rope (16) is fixedly connected by the band (17).
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| CN201910237312.7A CN109881203A (en) | 2019-03-27 | 2019-03-27 | A kind of closed tank cathodic protection potential monitoring device |
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|---|---|---|---|
| CN201910237312.7A CN109881203A (en) | 2019-03-27 | 2019-03-27 | A kind of closed tank cathodic protection potential monitoring device |
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| CN201910237312.7A Pending CN109881203A (en) | 2019-03-27 | 2019-03-27 | A kind of closed tank cathodic protection potential monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021143170A1 (en) * | 2020-01-16 | 2021-07-22 | 西安热工研究院有限公司 | Device for measuring cathode protection potential of small-caliber heat exchange pipe and usage method |
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