CN216289116U

CN216289116U - Three-ring electrode for petroleum logging instrument

Info

Publication number: CN216289116U
Application number: CN202123024426.5U
Authority: CN
Inventors: 贾秋实; 曹淑友; 张广福
Original assignee: Xi'an Shengshengxiang Energy Technology Co ltd
Current assignee: Xi'an Shengshengxiang Energy Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-12
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a three-ring electrode for an oil logging instrument, wherein an accommodating groove is formed in one end face of an electrode base, an electrode connecting seat is arranged in the accommodating groove in a matched mode, and a first sealing ring is arranged between the electrode connecting seat and the inner wall of the accommodating groove; three containing holes are formed in one end face of the electrode connecting seat, a conductive pin inserting seat is arranged in each containing hole in a matching mode, and a second sealing ring is arranged between each conductive pin inserting seat and the inner wall of each containing hole; a conductive pin jack is arranged on one end face of each conductive pin plug socket, three through holes penetrating through the other end face of the electrode base are arranged at the positions, opposite to the three conductive pin jacks, of the bottom of the accommodating tank, and a conductive pin is inserted into each through hole and each conductive pin jack; the other end face of the electrode connecting seat is provided with a first conducting ring, a second conducting ring and a third conducting ring at intervals, and the first conducting ring, the second conducting ring and the third conducting ring are respectively electrically connected with a conducting needle. The utility model ensures that the three-ring electrode is not short-circuited and ensures that the three-ring electrode has good insulating property.

Description

Three-ring electrode for petroleum logging instrument

Technical Field

The utility model belongs to the technical field of electrodes, and particularly relates to a three-ring electrode for an oil logging instrument.

Background

The three-ring electrode manufactured based on the glass sealing technology can be used at higher temperature (can be used at 300 ℃) compared with electrodes manufactured by plastics, rubber and other organic materials, so that the electric connector is widely applied to petroleum logging instruments. However, glass has a moisture absorption characteristic in a humid environment, so that the conventional three-ring electrode manufactured based on a glass sealing technology has a problem of reduced insulation value in the use process, and in the conventional three-ring electrode structure, both ends of a conductive pin are exposed outside, and an insulating ceramic tube is additionally arranged between a shell and the conductive pin to avoid the problem of reduced insulation in the humid environment.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the three-ring electrode for the petroleum logging instrument, which can ensure that the three-ring electrode is not short-circuited and ensure that the three-ring electrode has good insulating property.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

a three-ring electrode for an oil logging instrument comprises an electrode base, wherein an accommodating groove is formed in one end face of the electrode base, an electrode connecting seat is arranged in the accommodating groove in a matched mode, and a first sealing ring is arranged between the electrode connecting seat and the inner wall of the accommodating groove; three accommodating holes are formed in the end face, close to the bottom of the accommodating groove, of the electrode connecting seat, a conductive pin inserting seat is arranged in each accommodating hole in a matched mode, and a second sealing ring is arranged between each conductive pin inserting seat and the inner wall of each accommodating hole; a conductive pin jack is arranged on the end surface of each conductive pin inserting seat close to the bottom of the accommodating groove, three through holes penetrating through the other end surface of the electrode base are arranged at the positions, right opposite to the three conductive pin jacks, of the bottom of the accommodating groove, and a conductive pin is inserted into each through hole and each conductive pin jack; the electrode connecting seat is provided with a first conducting ring, a second conducting ring and a third conducting ring at intervals on the end face far away from the bottom of the accommodating groove, and the first conducting ring, the second conducting ring and the third conducting ring are respectively electrically connected with a conducting pin.

Furthermore, each conductive pin is sleeved with sealing insulating glass, and two ends of each sealing insulating glass are connected with insulating ceramic tubes sleeved on the corresponding conductive pins; the sealing insulating glass on each conducting pin is positioned in the corresponding through hole, one insulating ceramic tube on each conducting pin is positioned at one end of the corresponding through hole, the other insulating ceramic tube on each conducting pin is positioned at the other end of the corresponding through hole, and the joint of the two ends of each through hole and the insulating ceramic tube is coated with a sealing coating.

Furthermore, the insulating ceramic tubes at two ends of each through hole extend out of the corresponding through holes, and the extending distance is 1-3 mm.

Furthermore, a waist spring is arranged in each conductive pin jack, and one end of each conductive pin extending into each conductive pin jack is clamped and fixed through the corresponding waist spring.

Furthermore, the first conducting ring, the second conducting ring and the third conducting ring are all connected with conductor rods, and the conductor rods on the first conducting ring, the second conducting ring and the third conducting ring penetrate through the electrode connecting seat and then are connected with the corresponding conducting pin inserting seats.

Further, keep away from on the electrode connecting seat the terminal surface outer lane of holding tank bottom is provided with the annular groove, the annular groove matches and is provided with the clamping ring, the clamping ring is connected with the electrode base.

Further, first conducting ring, second conducting ring, third conducting ring and the terminal surface of clamping ring with the terminal surface parallel and level of electrode connecting seat, the terminal surface of electrode connecting seat with the terminal surface parallel and level of electrode base.

Furthermore, the other end face of the electrode base is provided with a blind hole, and a grounding pin is arranged in the blind hole.

Furthermore, a third sealing ring is further arranged on the side wall of the electrode base.

Compared with the prior art, the utility model has at least the following beneficial effects: the utility model provides a three-ring electrode for an oil logging instrument, wherein a containing groove is formed in one end face of an electrode base, an electrode connecting seat is arranged in the containing groove in a matching mode, three containing holes are formed in the end face, close to the bottom of the containing groove, of the electrode connecting seat, a conductive needle inserting seat is arranged in each containing hole in a matching mode, a conductive needle inserting hole is formed in the end face, close to the bottom of the containing groove, of each conductive needle inserting seat, three through holes penetrating through the other end face of the electrode base are formed in the positions, opposite to the three conductive needle inserting holes, of the bottom of the containing groove, a conductive needle is inserted into each through hole and each conductive needle inserting hole, a first conducting ring, a second conducting ring and a third conducting ring are arranged on the end face, far away from the bottom of the containing groove, of the electrode connecting seat at intervals, and the first conducting ring, the second conducting ring and the third conducting needle are respectively conducted electrically. According to the utility model, the electrode connecting seat and the conductive pin inserting seat positioned in the electrode connecting seat are arranged, the first sealing ring is arranged between the electrode connecting seat and the inner wall of the accommodating groove, the second sealing ring is arranged between the conductive pin inserting seat and the inner wall of the accommodating hole, and the first sealing ring and the second sealing ring can prevent oil liquid and other liquid from entering the electrode through the electrode ring and the core pin, so that the electrode is prevented from being short-circuited, and the insulating property of the three-ring electrode is ensured.

Furthermore, the utility model utilizes the insulating ceramic tube to protect the sealing insulating glass, provides an additional ceramic protection mode, can prevent the problem of glass fracture caused by collision of products due to the strength of ceramic superior to that of glass, and can effectively prevent the glass from overflowing in high-temperature sealing by sealing two ends of the sealing insulating glass by using the insulating ceramic tube, thereby ensuring the sealing performance of the glass and the pressure bearing tightness of the products. Meanwhile, the joint of the two ends of each through hole and the insulating ceramic tube is coated with a sealing coating, so that the contact between sealing insulating glass and air or water is effectively isolated, and the problem of insulation reduction of the glass sintering three-ring electrode in a humid environment or a slurry working environment is solved.

Furthermore, the insulating ceramic tubes at two ends of each through hole extend out of the corresponding through holes, the extending distance is 1-3 mm, and the extending parts can better play an insulating and isolating role, so that the electric resistance of the three-ring electrode can be better improved.

Furthermore, the waist spring is arranged in each conductive pin jack, and the conductive pins are clamped and fixed by the waist springs, so that the connection is convenient and quick.

Furthermore, the first conducting ring, the second conducting ring and the third conducting ring are respectively connected with a conductor rod, and the conductor rods on the first conducting ring, the second conducting ring and the third conducting ring are connected with the corresponding conducting pin inserting seats after penetrating through the electrode connecting seats, so that the connection between the conducting pins and the conducting rings is realized, and the acquisition of electric signals is realized.

Furthermore, the side wall of the electrode base is provided with a third sealing ring, so that the sealing performance of the three-ring electrode in matching with equipment is guaranteed.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall front view cross-sectional structure of a three-ring electrode for an oil logging tool according to the present invention;

FIG. 2 is a schematic diagram of the overall right-view structure of a three-ring electrode for a petroleum logging tool according to the present invention;

FIG. 3 is a schematic diagram of the overall left-side view structure of a three-ring electrode for a petroleum logging tool according to the present invention;

FIG. 4 is an exploded perspective view of a three-ring electrode for a petroleum logging tool according to the present invention.

In the figure: 1-an electrode base; 2-an electrode connecting seat; 3-an accommodation hole; 4-conductive pin plug seats; 5-conductive pin insertion holes; 6-through holes; 7-a conductive pin; 8-a first conductive ring; 9-a second conductive ring; 10-a third conductive ring; 11-a first sealing ring; 12-a second sealing ring; 13-sealing insulating glass; 14-an insulating ceramic tube; 15-waist spring; 16-a conductor bar; 17-a pressure ring; 18-blind holes; 19-a ground pin; 20-third seal ring.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent 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 a specific embodiment of the present invention, referring to fig. 1, fig. 2, fig. 3 and fig. 4, a three-ring electrode for an oil logging instrument includes an electrode base 1, an accommodating groove is formed on an end surface of the electrode base 1, an electrode connecting seat 2 is disposed in the accommodating groove in a matching manner, and a first sealing ring 11 is disposed between the electrode connecting seat 2 and an inner wall of the accommodating groove.

Referring to fig. 4, three receiving holes 3 are formed in the electrode connecting seat 2 near the end face of the bottom of the receiving hole, the three receiving holes 3 are uniformly formed according to a certain rule, a conductive pin socket 4 is disposed in each receiving hole 3 in a matching manner, and a second sealing ring 12 is disposed between the conductive pin socket 4 and the inner wall of the receiving hole 3.

As shown in fig. 4, a conductive pin jack 5 is provided on an end surface of each conductive pin socket 4 near the bottom of the accommodating groove, three through holes 6 penetrating through another end surface of the electrode base 1 are provided at positions of the bottom of the accommodating groove opposite to the three conductive pin jacks 5, a conductive pin 7 is inserted into each through hole 6 and each conductive pin jack 5, and two ends of each conductive pin 7 respectively extend out of two ends of the corresponding through hole 6 for a certain distance. In a preferred embodiment, as shown in fig. 1, a waist spring 15 is disposed in each conductive pin insertion hole 5, and one end of the conductive pin 7 extending into the conductive pin insertion hole 5 is clamped and fixed by the corresponding waist spring 15. Preferably, the other end face of the electrode base 1 is provided with a blind hole 18, and a grounding pin 19 is arranged in the blind hole 18.

As shown in fig. 1, 2 and 4, each conductive pin 7 is sleeved with a sealing insulating glass 13, and two ends of each sealing insulating glass 13 are connected with an insulating ceramic tube 14 sleeved on the corresponding conductive pin 7. The sealing insulating glass 13 on each conductive pin 7 is positioned in the corresponding through hole 6, and the sealing insulating glass 13 is hermetically connected with the inner wall of the corresponding through hole 6. One insulating ceramic tube 14 on each conductive pin 7 is positioned at one end of the corresponding through hole 6, and the insulating ceramic tube 14 at one end of the through hole 6 extends out of the corresponding through hole 6 by 1-3 mm; the other insulating ceramic tube 14 on each conductive pin 7 is located at the other end of the corresponding through hole 6, and the insulating ceramic tube 14 at the other end of the through hole 6 extends out of the corresponding through hole 6 by a distance of 1 mm-3 mm. The joints of the two ends of each through hole 6 and the insulating ceramic tubes 14 are coated with sealing coatings, and in the embodiment, the sealing coatings adopt 704 south large silicon rubber. The insulating ceramic tube 14 is used for providing a mode of external ceramic protection, the strength of ceramic is superior to that of glass, so that the problem that the sealing insulating glass 13 is cracked due to collision of products is solved, the problem that the sealing insulating glass 13 is easy to crack is effectively solved, and meanwhile, the waist spring 15, the first sealing ring 11 and the second sealing ring 12 are used for plugging the inside of the electrode, and the pressure-bearing sealing performance of the product is ensured.

Referring to fig. 1, 3 and 4, the electrode connecting seat 2 has a first conductive ring 8, a second conductive ring 9 and a third conductive ring 10 spaced apart from each other on the end surface away from the bottom of the receiving groove, preferably, the first conductive ring 8, the second conductive ring 9 and the third conductive ring 10 are concentrically arranged and equidistantly arranged, and the first conductive ring 8, the second conductive ring 9 and the third conductive ring 10 are electrically connected to one conductive pin 7 respectively, so as to achieve the acquisition of the electrical signal. Specifically, referring to fig. 1 and 4, the first conductive ring 8, the second conductive ring 9, and the third conductive ring 10 are all connected with a conductor rod 16, the conductor rods 16 of the first conductive ring 8, the second conductive ring 9, and the third conductive ring 10 penetrate through the electrode connecting socket 2 and then are connected with the corresponding conductive pin sockets 4, that is, the conductor rods 16 are used to electrically connect the first conductive ring 8, the second conductive ring 9, and the third conductive ring 10 with the corresponding conductive pins 7, in this embodiment, the conductor rods 16 are connected with the conductive pin sockets 4 by soldering.

Combine fig. 1, fig. 3 and fig. 4 to show, the terminal surface outer lane of keeping away from the accommodation slot bottom on electrode connecting seat 2 is provided with the annular groove, and the annular groove matches and is provided with clamping ring 17, and clamping ring 17 is connected with electrode base 1, that is to say, through clamping ring 17 with electrode connecting seat 2 fixed mounting in the holding tank of seting up on electrode base 1, in this embodiment, clamping ring 17 is connected the back with electrode base 1 through brazed mode and is fixed with electrode connecting seat 2. Preferably, the end surfaces of the first conductive ring 8, the second conductive ring 9, the third conductive ring 10 and the pressing ring 17 are flush with the end surface of the electrode connecting seat 2, and the end surface of the electrode connecting seat 2 is flush with the end surface of the electrode base 1, so as to form a smooth surface.

As a preferred embodiment, as shown in fig. 1, a third seal ring 20 is further provided on the side wall of the electrode base 1.

The first sealing ring 11, the second sealing ring 12 and the third sealing ring 20 are all high-temperature-resistant sealing rings, and the electrode base 1 is made of 17-4PH special stainless steel or P550 high-temperature alloy, so that the underground high-temperature and corrosion-resistant capacity of the electric connector is ensured. The conductive needle 7 is made of iron-nickel alloy 4J29, 4J28 or 4J50, the sealing insulating glass 13 is made of lead-free high-insulation low-temperature waterproof sealing glass, and the expansion coefficient of the conductive needle 7 is close to that of the sealing insulating glass 13, so that the bonding force between the conductive needle and the sealing glass in glass sealing is larger, the sealing performance of sealing of a product is guaranteed, and the hydraulic resistance is further guaranteed.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A three-ring electrode for an oil logging instrument is characterized by comprising an electrode base (1), wherein an accommodating groove is formed in one end face of the electrode base (1), an electrode connecting seat (2) is arranged in the accommodating groove in a matched mode, and a first sealing ring (11) is arranged between the electrode connecting seat (2) and the inner wall of the accommodating groove; three accommodating holes (3) are formed in the end face, close to the bottom of the accommodating groove, of the electrode connecting seat (2), a conductive pin inserting seat (4) is arranged in each accommodating hole (3) in a matched mode, and a second sealing ring (12) is arranged between each conductive pin inserting seat (4) and the inner wall of each accommodating hole (3); a conductive needle jack (5) is arranged on the end face, close to the bottom of the accommodating groove, of each conductive needle inserting seat (4), three through holes (6) penetrating through the other end face of the electrode base (1) are arranged at the positions, opposite to the three conductive needle jacks (5), of the bottom of the accommodating groove, and a conductive needle (7) is inserted into each through hole (6) and each conductive needle jack (5); keep away from on the electrode connecting seat (2) the interval is provided with first conducting ring (8), second conducting ring (9) and third conducting ring (10) on the terminal surface of accommodation tank bottom portion, first conducting ring (8), second conducting ring (9) and third conducting ring (10) electric conduction respectively lead to a conductive needle (7).

2. The three-ring electrode for the petroleum logging instrument as claimed in claim 1, wherein each conductive pin (7) is sleeved with a sealing insulating glass (13), and two ends of each sealing insulating glass (13) are connected with insulating ceramic tubes (14) sleeved on the corresponding conductive pins (7); the sealing insulating glass (13) on each conducting pin (7) is positioned in the corresponding through hole (6), one insulating ceramic tube (14) on each conducting pin (7) is positioned at one end of the corresponding through hole (6), the other insulating ceramic tube (14) on each conducting pin (7) is positioned at the other end of the corresponding through hole (6), and the joint of the two ends of each through hole (6) and the insulating ceramic tube (14) is coated with a sealing coating.

3. The three-ring electrode for the oil logging instrument according to claim 2, wherein the insulating ceramic tubes (14) at both ends of each through hole (6) extend out of the corresponding through hole (6) by a distance of 1mm to 3 mm.

4. The three-ring electrode for the petroleum logging instrument as claimed in claim 1, wherein a waist spring (15) is arranged in each conducting pin jack (5), and one end of the conducting pin (7) extending into the conducting pin jack (5) is clamped and fixed through the corresponding waist spring (15).

5. The three-ring electrode for the oil logging instrument according to claim 1, wherein the first conductive ring (8), the second conductive ring (9) and the third conductive ring (10) are connected with conductor rods (16), and the conductor rods (16) of the first conductive ring (8), the second conductive ring (9) and the third conductive ring (10) penetrate through the electrode connecting seat (2) and then are connected with the corresponding conductive pin inserting seats (4).

6. The oil logging instrument uses three ring electrodes according to claim 1, characterized in that, the terminal surface outer lane of keeping away from the accommodation groove bottom on electrode connecting seat (2) is provided with the annular groove, the annular groove matches and is provided with clamping ring (17), clamping ring (17) are connected with electrode base (1).

7. The oil logging instrument uses three ring electrode of claim 6, characterized in that, the terminal surface of first conducting ring (8), second conducting ring (9), third conducting ring (10) and clamping ring (17) is with the terminal surface of electrode connecting seat (2) is parallel and level, the terminal surface of electrode connecting seat (2) is with the terminal surface parallel and level of electrode base (1).

8. The oil logging instrument used tricyclic electrode according to claim 1, characterized in that a blind hole (18) is formed in the other end face of the electrode base (1), and a grounding pin (19) is arranged in the blind hole (18).

9. The oil logging tool tri-ring electrode as claimed in claim 1, wherein the electrode base (1) is further provided with a third sealing ring (20) on the side wall.