CN211785813U - Small-sized electric field potential measuring device - Google Patents
Small-sized electric field potential measuring device Download PDFInfo
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- CN211785813U CN211785813U CN201922280057.2U CN201922280057U CN211785813U CN 211785813 U CN211785813 U CN 211785813U CN 201922280057 U CN201922280057 U CN 201922280057U CN 211785813 U CN211785813 U CN 211785813U
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Abstract
The utility model provides a miniaturized electric field potential measuring device, includes watertight cover 1, infiltration cover 2, electrode cylinder 3, electrode terminal 4, flange sealing pad 5, flange cap 6, rectangular cavity 7, gland nut 8, seal cover 10, pressure washer 11, fixing bolt 12, binding post 13, terminal fixed nut 14, epoxy coating 15, electrode body 16. The potential measuring device adopts an integrated design form and has the advantages of small volume, light weight, strong structural bearing capacity and the like. The reference electrode body is connected with the electrode installation watertight protection structural member by bolts, so that the reference electrode body is convenient to install and disassemble and has better maintainability.
Description
Technical Field
The utility model relates to an electric field potential measuring device, more specifically relate to an electric field potential measuring device that is applied to miniaturization, compressive strength on underwater vehicle surface and is not less than 10 Mpa.
Background
The ship surface electric field potential distribution is an important means for representing the ship electrostatic field intensity, is an important input source for ship electrostatic field control, and is a unique means for judging the electrostatic field control effect.
On the other hand, the cathodic protection effect of the ship can also be evaluated through the potential distribution condition of the surface of the ship, and particularly, the potential difference of the surface of a ship body needs to be accurately controlled and monitored at certain key positions of an underwater vehicle.
Therefore, accurate measurement of the electric field potential of the ship surface is important for electrostatic field control and ship protection of the ship. The current electrode for monitoring the ship potential in China mainly meets the requirements of ship anticorrosion monitoring and an impressed current cathodic protection system, is designed according to GB/T7387-. The utility model relates to a miniaturized electric field potential measuring device has small, light in weight (about 12 kg), easily installs, and resistant strong water pressure is not less than 10MPa, can satisfy modern boats and ships and underwater vehicle design demand.
Disclosure of Invention
Aiming at the surface electric field potential measuring requirement of an underwater vehicle, the utility model provides a miniature electric field potential measuring device, which comprises a watertight cover, wherein the watertight cover is provided with a base part and a reducing part protruding outwards from the base part, and the internal volume of the base part is communicated with the internal volume of the reducing part; one end of the diameter reducing part is radially and inwardly provided with a water seepage sleeve seat, and the side wall of the water seepage sleeve seat is in sealing contact with the inner wall of the diameter reducing part; the water seepage sleeve is provided with an internal volume, and the bottom of the internal volume is provided with water permeable holes so that the internal volume of the water seepage sleeve can be communicated with the external environment; the inner part of the water seepage sleeve is provided with a shoulder part, one end of an electrode cylinder is abutted against the shoulder part of the water seepage sleeve, and the outer surface of the electrode cylinder is in sealing contact with the inner surface of the water seepage sleeve and the inner surface of the reducing part; the electrode cylinder is provided with a cavity communicated with the inner volume of the water seepage sleeve, the electrode body is arranged in the cavity, the bottom of the cavity is provided with a hole penetrating through the electrode cylinder, one end of the connecting device penetrates through the hole to enter the cavity to be connected with the electrode body, the other end of the connecting device penetrates through the hole to enter the rectangular cavity of the flange cap to be connected with the watertight cable, and the watertight cable further extends to the outside of the flange cap; a flange cap secures the electrode cylinder to the bottom of the interior volume of the base of the watertight housing by means of securing bolts.
Further, the connecting device is an electrode binding post, the electrode binding post is connected with the electrode cylinder through epoxy resin and fixed through a binding post nut, the electrode binding post is connected with a binding post, and the binding post is further connected with a watertight cable.
Further, the connecting means of the electrode body is welded directly to the watertight cable in the rectangular cavity.
Furthermore, epoxy resin paint is filled between the hole of the cavity of the electrode cylinder and the electrode binding post for sealing.
Further, a sealing means is provided between the inner volume of the base and the electrode cylinder.
Furthermore, the top of the flange cap is also provided with an inner cavity for accommodating a watertight cable, a compression sheet is arranged in the inner cavity, a compression stuffing box sealing sleeve is arranged above the compression sheet, and the compression stuffing box sealing sleeve is compressed and fixed in the inner cavity by a stuffing box compression nut.
Furthermore, the watertight cover, the flange cap and the stuffing box compression nut are made of the same material as the ship body.
Further, the electrode body is of a silver/silver chloride spiral structure.
Furthermore, the reducing portion of the miniaturized potential measuring device extends into the hole of the ship body steel plate to be in contact with the external environment, the miniaturized potential measuring device is welded with the ship body steel plate through four welding fixing points, the reducing portion is flush with the ship body non-metal covering layer, and the surface of the ship body is ensured to be smooth.
The utility model has the advantages that:
1) potential measurement device adopts integrated design form, has advantages such as small, light in weight, structure bearing capacity is strong. The reference electrode body is connected with the electrode installation watertight protection structural member by bolts, so that the reference electrode body is convenient to install and disassemble and has better maintainability.
2) Potential measurement device reference electrode body is little with reference electrode installation watertight protection structure spare inside density space, adopts epoxy to fill or vulcanize the packing, effectively eliminates the inside and outside differential pressure phenomenon of production, has strengthened the bearing capacity.
3) Potential measurement device's measuring electrode adopts embedded installation, and it is conformal with sea water contact site and hull, makes hull surface parallel and level, ensures that the hull is linear.
4) Potential measurement device only sets up phi 76 mm's mounting hole on the hull surface can with the hull within a definite time carry out welded connection, it is convenient to install, it is little to the hull structure influence.
5) Potential measuring device designs's structure satisfies underwater vehicle installation demand, can bear 7Mpa water pressure intensity, can be applied to underwater vehicle surface electric field potential measurement.
Drawings
FIG. 1 is a schematic diagram of an electric field potential measuring device according to the present invention;
FIG. 2 is a schematic view of the installation of the electric field potential measuring device of the present invention;
fig. 3 is an integrated scheme diagram of the electric field potential measuring device of the present invention.
Detailed Description
To describe the present invention more specifically, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses mainly by watertight cover 1, infiltration cover 2, electrode cylinder 3, electrode terminal 4, flange seal pad 5, flange cap 6, rectangular cavity 7, gland nut 8, seal cover 10, pressure pad 11, fixing bolt 12, binding post 13, terminal fixing nut 14, epoxy coating 15, electrode body 16, wherein
The watertight cover 1 is a ladder-shaped cavity and is made of the same material as ship steel. The base part is an inverted L-shaped hollow cylinder with the diameter of 160mm, the diameter reducing part which protrudes outwards from the base part is a hollow cylinder with the diameter of 74mm, the size of the opening is 45mm, and the internal volume of the base part is communicated with the internal volume of the diameter reducing part; one end of the reducing portion is radially inwards provided with a water seepage sleeve seat, and the water seepage sleeve 2 is arranged in the inner volume of the reducing portion and is clamped on the water seepage sleeve seat and is in sealing contact with the inner wall of the reducing portion. The flange cap 6 is embedded in the watertight housing 1.
The water seepage sleeve 2 is made of nylon materials, has an internal volume, is provided with a phi 5mm water permeable hole contacted with seawater at the bottom, the inside of the water seepage sleeve 2 is provided with a shoulder part, and one end of the electrode cylinder 3 is abutted against the shoulder part of the water seepage sleeve 2 to fix the electrode body 16.
The outer surface of the electrode cylinder 3 is in sealing contact with the inner surface of the water seepage sleeve 2 and the inner surface of the reducing part and is communicated with the inner volume of the water seepage sleeve; the electrode body 16 is arranged in the rectangular cavity 7, the bottom of the electrode body is provided with a hole penetrating through the electrode cylinder 3, one end of the connecting device penetrates through the hole to enter the rectangular cavity 7 to be connected with the electrode body 16, the other end of the connecting device penetrates through the hole to enter the rectangular cavity of the flange cap 8 to be connected with the watertight cable 9, and the watertight cable 9 further extends to the outside of the flange cap 8.
The electrode body 16 is of a silver/silver chloride spiral structure, is prepared and integrally processed by adopting a hot dip coating process, passes through the electrode cylinder 3 and is directly connected with the electrode binding post 4, so that the measured electric field potential signal is accurate and reliable.
The terminal 4 is connected to the electrode cylinder 3 by means of an epoxy resin 15 and is secured by means of a terminal nut 14, ensuring the connection of the electrode body 16 to the watertight cable 9 at the terminal 13.
The flange cap 6 is of an inverted step shape, and the material is the same as that of the ship steel. The compression nut 8 is made of the same material as hull steel and is tightly combined with the flange cap 6 through a compression stuffing box sealing sleeve 10 and a compression gasket 11.
The watertight cover 1 and the electrode cylinder 3 are sealed by a flange sealing gasket 5, and the electrode cylinder 3 and the flange cap 6 are fixed by 4 fastening bolts 12.
The watertight cable 9 is used for transmitting a measured electric field potential signal, is a pressure-resistant and shielding cable, penetrates through the stuffing box compression nut 8 and the stuffing box sealing sleeve 10, and is connected with the electrode body 16 at the connecting terminal 13.
Furthermore, the watertight cover 1, the watertight sleeve 2, the electrode cylinder 3 and the flange cover cap 6 form a whole through the stuffing box compression nut 8 and the 4 fastening bolts 12, and long-acting heavy-duty coating is coated on the surface of the watertight cover, so that the ship body and the electric field potential measuring device are protected from corrosion.
Referring to the installation schematic diagram of fig. 2, the miniaturized potential measuring device 20 is welded with the hull steel plate 18 through four welding fixing points 19 and is flush with the hull sound-absorbing tile 17, so that the surface of the hull is smooth.
Referring to fig. 3 of the integrated embodiment of the electric field potential measuring device, the electrode body 22 of the miniaturized potential measuring device can be further simplified in structure and reduced in size by being directly welded with the watertight cable 9 in the rectangular cavity 7.
The above two embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and any changes, modifications, replacements, combinations, simplifications and deformations made under the conditions of the spirit and principle of the present invention are all included in the protection scope of the present invention.
Claims (9)
1. A miniaturized electric field potential measuring device is characterized by comprising a watertight cover, wherein the watertight cover is provided with a base part and a reducing part protruding outwards from the base part, and the internal volume of the base part is communicated with the internal volume of the reducing part; one end of the diameter reducing part is radially inwards provided with a water seepage sleeve seat, the water seepage sleeve is arranged in the inner volume of the diameter reducing part and is clamped on the water seepage sleeve seat, and the side wall of the water seepage sleeve seat is in sealing contact with the inner wall of the diameter reducing part; the water seepage sleeve is provided with an internal volume, and the bottom of the internal volume is provided with water permeable holes so that the internal volume of the water seepage sleeve can be communicated with the external environment; the inner part of the water seepage sleeve is provided with a shoulder part, one end of an electrode cylinder is abutted against the shoulder part of the water seepage sleeve, and the outer surface of the electrode cylinder is in sealing contact with the inner surface of the water seepage sleeve and the inner surface of the reducing part; the electrode cylinder is provided with a cavity communicated with the inner volume of the water seepage sleeve, the electrode body is arranged in the cavity, the bottom of the cavity is provided with a hole penetrating through the electrode cylinder, one end of the connecting device penetrates through the hole to enter the cavity to be connected with the electrode body, the other end of the connecting device penetrates through the hole to enter the rectangular cavity of the flange cap to be connected with the watertight cable, and the watertight cable further extends to the outside of the flange cap; a flange cap secures the electrode cylinder to the bottom of the interior volume of the base of the watertight housing by means of securing bolts.
2. The miniaturized electric field potential measuring device of claim 1, wherein the connecting means is an electrode post, the electrode post is connected to the electrode cylinder by epoxy resin and fixed by a post nut, the electrode post is connected to a connection terminal, and the connection terminal is further connected to a watertight cable.
3. A miniaturized electric field potential measuring device according to claim 1, characterized in that the connecting means of the electrode body are welded directly to the watertight cable in a rectangular cavity.
4. The miniaturized electric field potential measuring device of claim 1, wherein the space between the hole of the cavity of the electrode cylinder and the electrode post is filled with epoxy resin paint for sealing.
5. A miniaturized electric field potential measuring device according to claim 1, characterized in that sealing means are provided between the inner volume of the base and the electrode cylinder.
6. The miniaturized electric field potential measuring device of claim 1, wherein the top of the flange cap further has an inner cavity for accommodating the watertight cable, a compression piece is arranged in the inner cavity, a compression stuffing box gland is arranged above the compression piece, and a stuffing box compression nut compresses and fixes the compression stuffing box gland in the inner cavity.
7. The miniaturized electric field potential measuring device of claim 6, wherein the watertight cover, the flange cap and the stuffing box gland nut are made of the same material as the ship body.
8. The miniaturized electric field potential measuring device of claim 1, wherein the electrode body has a spiral structure of silver or silver chloride.
9. The miniaturized electric field potential measuring device according to claim 1,
the reducing portion extends into the open hole of the ship body steel plate to be in contact with the external environment, the miniature electric field potential measuring device is welded with the ship body steel plate through four welding fixing points, the reducing portion is enabled to be flush with the ship body non-metal covering layer, and the surface of the ship body is guaranteed to be smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922280057.2U CN211785813U (en) | 2019-12-18 | 2019-12-18 | Small-sized electric field potential measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922280057.2U CN211785813U (en) | 2019-12-18 | 2019-12-18 | Small-sized electric field potential measuring device |
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| Publication Number | Publication Date |
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| CN211785813U true CN211785813U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922280057.2U Active CN211785813U (en) | 2019-12-18 | 2019-12-18 | Small-sized electric field potential measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092355A (en) * | 2021-04-06 | 2021-07-09 | 上海建冶科技股份有限公司 | Detection apparatus for real-time detection metal corrosion rate |
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2019
- 2019-12-18 CN CN201922280057.2U patent/CN211785813U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092355A (en) * | 2021-04-06 | 2021-07-09 | 上海建冶科技股份有限公司 | Detection apparatus for real-time detection metal corrosion rate |
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