CN211901924U

CN211901924U - Electrochemical corrosion-resistant connecting pipe fitting for carbon steel pipe to stainless steel pipe

Info

Publication number: CN211901924U
Application number: CN201922354530.7U
Authority: CN
Inventors: 张书洪
Original assignee: Individual
Current assignee: Chongqing Junjiehao Petroleum Equipment Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-11-10
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a nonrust steel pipe of carbon element steel pipe conversion prevents electrochemical corrosion and connects pipe fitting, including the connecting pipe main part, the both sides of connecting pipe main part are taken over by first commentaries on classics respectively and the second switching is managed constitutes, and the length setting of first commentaries on classics taking over and second switching pipe is the same, the fixed plasticity ring that is provided with between first commentaries on classics taking over and the second switching pipe, and the side surface fixed connection of plasticity ring and the first switching pipe in both sides and second switching pipe, the inside and outside footpath size of plasticity ring sets up and takes over and the inside and outside footpath size of second switching pipe the same with first commentaries on classics, the fixed reinforcement that is provided with in inside. The utility model discloses in, the plasticity ring is established at the connecting pipe middle part, adds non-conducting material and avoids taking place electrochemical reaction, avoids the electrochemical corrosion phenomenon, connects the pipe fitting both ends and establishes the zinc alloy body to sacrificial anode's mode is avoided connecting the pipe fitting and is taken place electrochemical corrosion, plays the ability of preventing electrochemical corrosion that increases butt joint body itself.

Description

Electrochemical corrosion-resistant connecting pipe fitting for carbon steel pipe to stainless steel pipe

Technical Field

The utility model relates to a connect the pipe fitting field, especially relate to the electricity prevention chemical corrosion who changes nonrust steel pipe of carbon element steel pipe connects pipe fitting.

Background

The electrochemical corrosion is that metal and electrolyte form two electrodes to form a corrosion primary battery. For example, iron and oxygen, which are negative electrodes and subject to corrosion because the electrode potential of iron is always lower than that of oxygen. Is characterized in that a plurality of small bulges with different diameters are formed on the surface which is subjected to oxygen corrosion, and the sublayer is black powdery ulcer corrosion pits.

When carbon steel and stainless steel pipe contact, the phenomenon of electrochemical corrosion can take place, so the butt joint of carbon steel and stainless steel pipe can't be realized to the butt joint pipe of general form, and general butt joint mode sets up to the welding, but because the suitability of connected environment is higher, still can take place electrochemical corrosion under the environment change effect, and the practicality is not high, and the butt joint of anticorrosiving can't be realized to single connected mode, also can't guarantee the hookup location leakproofness.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and provides an electrochemical corrosion resistant connecting pipe fitting for converting a carbon steel pipe into a stainless steel pipe.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the electrochemical corrosion prevention connecting pipe fitting for the carbon steel pipe conversion stainless steel pipe comprises a connecting pipe main body, wherein two sides of the connecting pipe main body are respectively composed of a first adapter pipe and a second adapter pipe, the lengths of the first adapter pipe and the second adapter pipe are set to be the same, a plastic ring is fixedly arranged between the first adapter pipe and the second adapter pipe and fixedly connected with the side surfaces of the first adapter pipe and the second adapter pipe on two sides, the inner diameter and the outer diameter of the plastic ring are set to be the same as those of the first adapter pipe and the second adapter pipe, a reinforcing member is fixedly arranged inside the plastic ring, a thread butt-joint barrel is fixedly connected to the inner side of the middle part of one end of the first adapter pipe, which deviates from the connecting plastic ring, a thread butt-joint column is fixedly connected to the inner side of the middle part of one end of the second adapter pipe, and one end of the thread butt-joint column protrudes out of the side, and the protruding length of the thread butting column is set to be the same as the barrel depth of the thread butting barrel.

As a further description of the above technical solution:

the material of first switching pipe and second switching pipe is all fixed to be set up to the zinc alloy, the relative surperficial lateral wall middle part rigidity of first switching pipe and second switching pipe is provided with first joint groove and second joint groove, and the degree of depth in first joint groove and second joint groove sets up to the same.

As a further description of the above technical solution:

the fixed arch that is provided with in both sides surface middle part rigidity of plasticity ring, and protruding and the first joint groove in both sides and the laminating of second joint inslot wall reciprocal anchorage, the fixed cross-section that sets up of plasticity ring is cross structure, the reinforcement sets up to the tube-shape, and the perpendicular cross-sectional shape of reinforcement is the same with the perpendicular cross-section of plasticity ring.

As a further description of the above technical solution:

the material of the thread butting tube is fixedly arranged into carbon steel, and one end of the first adapter tube, which is connected with the thread butting tube, is fixedly butted with the carbon steel.

As a further description of the above technical solution:

the material of screw thread docking post is fixed to be set up to the stainless steel, and the one end of second adapter tube connecting thread docking post is fixed in the stainless steel and docks, the rubber packing ring has been put to the surface cover of screw thread docking post.

As a further description of the above technical solution:

the outer surface of the connecting pipe main body is fixedly sleeved with a heat shrink pipe, and the end parts of the two ends of the heat shrink pipe protrude out of the end surfaces of the two sides of the connecting pipe main body.

The utility model discloses following beneficial effect has:

1. the utility model discloses connect pipe fitting middle part rigidity and be provided with the plasticity ring to add non-conducting material and avoid both ends connection structure to take place electrochemical reaction, thereby avoid the electrochemical corrosion phenomenon.

2. The utility model discloses connect the fixed zinc alloy body that is provided with in pipe fitting both ends, the inside fixed butt joint piece that is provided with corresponding butt joint material to the mode of sacrificial anode avoids connecting the pipe fitting and takes place electrochemical corrosion, also can play the ability of preventing electrochemical corrosion that increases butt joint body itself.

3. The utility model discloses the pyrocondensation pipe has been put to body surface cover, and the pyrocondensation pipe sets up length and is greater than butt joint body length to connect both ends and both sides butt joint outer wall parcel after accomplishing, realize both ends sealing operation, reduce water and oxygen and get into hookup location, thereby avoid taking place electrochemical corrosion.

Drawings

FIG. 1 is a front sectional view of an electrochemical corrosion protection connecting pipe fitting for a carbon steel pipe to stainless steel pipe;

FIG. 2 is a front view of an electrochemical corrosion resistant connecting tube for a carbon steel tube to stainless steel tube;

FIG. 3 is a side view of the reinforcement member for the electrochemical corrosion protection connector tube of a carbon steel tube to stainless steel tube.

Illustration of the drawings:

1. a connecting pipe main body; 2. a first adapter tube; 3. a second adapter tube; 4. a plastic ring; 5. heat shrink tubing; 6. a thread butting cylinder; 7. a threaded docking post; 8. a rubber gasket; 9. a reinforcement; 10. a first clamping groove; 11. a second clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the electrochemical corrosion prevention connecting pipe fitting for the carbon steel pipe conversion stainless steel pipe comprises a connecting pipe main body 1, the connecting pipe main body is provided for an abutting pipe fitting, two sides of the connecting pipe main body 1 are respectively composed of a first adapting pipe 2 and a second adapting pipe 3, the lengths of the first adapting pipe 2 and the second adapting pipe 3 are set to be the same, the abutting stability of two ends is ensured, a plastic ring 4 is fixedly arranged between the first adapting pipe 2 and the second adapting pipe 3, non-conductive substances are added to avoid the electrochemical corrosion phenomenon, the plastic ring 4 is fixedly connected with the side surfaces of the first adapting pipe 2 and the second adapting pipe 3 at two sides, the inner diameter and the outer diameter of the plastic ring 4 are set to be the same as the inner diameter and the outer diameter of the first adapting pipe 2 and the second adapting pipe 3, a reinforcing part 9 is fixedly arranged inside the plastic ring 4, the fixing stability between the plastic ring 4 and the connecting pipe is increased, a thread abutting cylinder 6 is fixedly connected, the utility model provides one side butt joint, and the inboard fixedly connected with screw thread docking post 7 in the middle part of the one end that second switching pipe 3 deviates from to be connected the plasticity ring 4 provides the side surface of the one end protrusion second switching pipe 3 of opposite side butt joint screw thread docking post 7, and the protruding length setting of screw thread docking post 7 is the same with the section of thick bamboo of a screw thread docking section of thick bamboo 6 deeply, guarantees both ends butt joint transition precision.

The materials of the first adapter tube 2 and the second adapter tube 3 are both fixedly set to be zinc alloy, a sacrificial anode protection method is provided, the middle parts of the side walls of the opposite surfaces of the first adapter tube 2 and the second adapter tube 3 are fixedly provided with a first clamping groove 10 and a second clamping groove 11, the depths of the first clamping groove 10 and the second clamping groove 11 are set to be the same, the middle parts of the surfaces of the two sides of the plastic ring 4 are fixedly provided with bulges, the bulges are fixedly attached to the inner walls of the first clamping groove 10 and the second clamping groove 11 at the two sides, the connection and the fixation of the plastic ring 4 are ensured, the vertical section of the plastic ring 4 is fixedly set to be a cross structure, the reinforcing member 9 is set to be cylindrical, the vertical section of the reinforcing member 9 is the same as the vertical section of the plastic ring 4, the strengthening operation of the strength of the plastic ring 4 is ensured, the material of the thread adapter tube 6 is fixedly set to be carbon steel, and one end of the first adapter tube 2, prevent electrochemical corrosion, the fixed stainless steel that sets up of material of screw thread docking post 7, and the one end of 3 connecting thread docking posts 7 of second switching pipe is fixed in the stainless steel and docks, prevent electrochemical corrosion, rubber packing ring 8 has been put to the surface cover of screw thread docking post 7, increase the connection closure, the fixed pyrocondensation pipe 5 that has been put to the surface cover of connecting pipe main part 1, and the both sides terminal surface of the both ends tip protrusion connecting pipe main part 1 of pyrocondensation pipe 5, realize connecting the closed operation at both ends after the completion.

The working principle is as follows: when carbon steel and stainless steel pipe connection operation, connecting pipe main part 1 middle part rigidity is provided with plasticity ring 4, avoid both ends connection structure to take place electrochemical reaction with adding non-conducting material, thereby avoid the electrochemical corrosion phenomenon, the fixed zinc alloy body that is provided with in connecting pipe main part 1 both ends, the inside is fixed and is provided with the butt joint piece of corresponding butt joint material, avoid connecting the pipe fitting to take place electrochemical corrosion with the mode of sacrificial anode, also can play the ability of preventing electrochemical corrosion that increases butt joint body itself, pyrocondensation pipe 5 has been put to connecting pipe main part 1 surface cover, pyrocondensation pipe 5 sets up length and is greater than connecting pipe main part 1 length, thereby connect both ends and both sides butt joint outside of tubes parcel after accomplishing, realize both ends sealing operation, reduce water and oxygen entering hookup location, thereby avoid taking place.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The electricity-proof chemical corrosion connecting pipe fitting for the carbon steel pipe conversion stainless steel pipe comprises a connecting pipe main body (1) and is characterized in that: the connecting pipe is characterized in that two sides of the connecting pipe main body (1) are respectively composed of a first adapter pipe (2) and a second adapter pipe (3), the lengths of the first adapter pipe (2) and the second adapter pipe (3) are set to be the same, a plastic ring (4) is fixedly arranged between the first adapter pipe (2) and the second adapter pipe (3), the plastic ring (4) is fixedly connected with the side surfaces of the first adapter pipe (2) and the second adapter pipe (3) on two sides, the inner diameter and the outer diameter of the plastic ring (4) are the same as those of the first adapter pipe (2) and the second adapter pipe (3), a reinforcing piece (9) is fixedly arranged inside the plastic ring (4), the inner side of the middle part of one end of the first adapter pipe (2) deviating from the connecting plastic ring (4) is fixedly connected with a thread butt-joint barrel (6), the inner side of the middle part of one end of the second adapter pipe (3) deviating from the connecting plastic ring (4) is fixedly connected with a thread butt-joint column, one end of the thread butting column (7) protrudes out of the side surface of the second adapter tube (3), and the protruding length of the thread butting column (7) is the same as the depth of the thread butting tube (6).

2. The electrochemical corrosion resistant connecting pipe fitting for carbon steel pipe converted stainless steel pipe as claimed in claim 1, wherein: the material of first switching pipe (2) and second switching pipe (3) is all fixed to be set up to the zinc alloy, the relative surface lateral wall middle part rigidity of first switching pipe (2) and second switching pipe (3) is provided with first joint groove (10) and second joint groove (11), and the degree of depth of first joint groove (10) and second joint groove (11) sets up to the same.

3. The electrochemical corrosion resistant connecting pipe fitting for carbon steel pipe converted stainless steel pipe as claimed in claim 1, wherein: the fixed arch that is provided with in both sides surface middle part rigidity of plasticity ring (4), and protruding and the first joint groove in both sides (10) and the laminating of second joint groove (11) inner wall reciprocal anchorage, the perpendicular cross-section of plasticity ring (4) is fixed to be set up to cross structure, reinforcement (9) set up to the tube-shape, and the perpendicular cross-sectional shape of reinforcement (9) is the same with the perpendicular cross-section of plasticity ring (4).

4. The electrochemical corrosion resistant connecting pipe fitting for carbon steel pipe converted stainless steel pipe as claimed in claim 1, wherein: the material of the thread butting tube (6) is fixedly arranged to be carbon steel, and one end of the first rotary connecting tube (2) connected with the thread butting tube (6) is fixedly butted with the carbon steel.

5. The electrochemical corrosion resistant connecting pipe fitting for carbon steel pipe converted stainless steel pipe as claimed in claim 1, wherein: the material of screw thread docking post (7) is fixed to be set up to the stainless steel, and the second adapter tube (3) is connected the one end of screw thread docking post (7) and is fixed in the stainless steel and dock, rubber packing ring (8) have been put to the surface cover of screw thread docking post (7).

6. The electrochemical corrosion resistant connecting pipe fitting for carbon steel pipe converted stainless steel pipe as claimed in claim 1, wherein: the outer surface of the connecting pipe main body (1) is fixedly sleeved with a heat shrink pipe (5), and the end parts of the two ends of the heat shrink pipe (5) protrude out of the end surfaces of the two sides of the connecting pipe main body (1).