CN210237784U

CN210237784U - Ground pipeline cathodic protection device

Info

Publication number: CN210237784U
Application number: CN201920271105.9U
Authority: CN
Inventors: Zihao Cai; 蔡子豪; Qinglyu Han; 韩青绿
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2020-04-03
Anticipated expiration: 2029-03-05

Abstract

The utility model discloses a ground pipeline cathodic protection device in the technical field of pipeline corrosion prevention, the pipeline comprises a pipe, flange is all installed to the both sides of pipeline, and is connected with the ground pipeline through flange, the bottom of pipeline is equipped with the hydrops chamber, the positive pole piece has been placed in the hydrops chamber, the inner chamber bottom in the hydrops chamber is installed to the positive pole piece, the welding has fixed billet in the inside wall in hydrops chamber, positive pole piece fixed mounting is on fixed billet, the access hole has been seted up at the top of pipeline. The utility model is used for install the low point department on the pipeline on ground, utilize and consume the anodic protection negative pole, protect the pipeline, can carry out ponding through the hydrops chamber, also can regularly drainage blowdown, can guarantee that the positive pole certainly is the bubble in water, and the positive pole passes through the medium channel and does not influence the medium flow of pipeline, avoids causing the pressure drop, is unfavorable for the condition of pressure control.

Description

Ground pipeline cathodic protection device

Technical Field

The utility model relates to a pipeline corrosion prevention technical field, concretely relates to ground pipeline cathodic protection device.

Background

The ground pipeline is a pipeline used in an oil and gas station, generally, the pipeline is installed above the ground through a bracket, the outer wall is generally anticorrosive through painting anticorrosive paint, the individual places are anticorrosive through welding sacrificial anodes, and the inner wall is generally not anticorrosive. But often because the conveying medium contains water, sulfur or other impurities, water accumulation or sediments are easily formed at the low point of the pipeline and the low flow velocity area of the pipeline in long-term operation, so that the perforation of the pipeline from inside to outside is corroded.

Pipeline corrosion is mostly because contain sulphur or moisture, and the pure sulphur corrosion that contains is not serious, contains water or contains sulphur simultaneously on the contrary, corrodes very seriously, and the inside cathodic protection of general pipeline is not convenient for carry out periodic replacement with the anode part, and the positive pole can lead to not good with the solution contact because set up the improper position, based on this, the utility model designs a ground pipeline cathodic protection device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at overcomes at least a defect among the prior art, provides a ground pipeline cathodic protection device to the inside cathodic protection of general pipeline that provides is not convenient for carry out the periodic replacement with the positive pole part in solving above-mentioned background art, and the positive pole can lead to the not good problem of solution contact because set up the improper position.

In order to realize the technical scheme, the utility model discloses a following technical scheme:

according to the utility model discloses an aspect provides a ground pipeline cathodic protection device, the pipeline comprises a pipe, flange is all installed to the both sides of pipeline, and is connected with the ground pipeline through flange, the bottom of pipeline is equipped with the hydrops chamber, the positive pole piece has been placed in the hydrops chamber, the inner chamber bottom in the hydrops chamber is installed to the positive pole piece, the welding has fixed billet in the inside wall in hydrops chamber, positive pole piece fixed mounting is on fixed billet, the access hole has been seted up at the top of pipeline, install the access cover on the access hole, the drain is installed in the bottom connection in hydrops chamber.

Wherein, the upper surface of the anode block is flush with the bottom of the pipeline, so that the medium flow is not influenced.

Preferably, the outer side of the access cover is hermetically installed and fixed with the outer side of the access opening through fastening bolts.

Preferably, the middle part of the access cover is flush with the outer side end of the pipeline, and the outer diameter of the top of the outer side of the access cover is the same as that of the connecting flange.

Preferably, the bottom of the anode block is provided with a medium channel, and the medium channel is communicated with the hydrops cavity.

Preferably, the fixing steel bar is provided with an installation groove, the anode block is inserted in the installation groove, and the anode block is fixedly installed with the fixing steel bar through a bolt.

Preferably, a double blowdown valve is arranged on the blowdown pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model is used for install the low point department on the pipeline on ground, utilize and consume the anodic protection negative pole, protect the pipeline, can carry out ponding through the hydrops chamber, also can regularly drainage blowdown, can guarantee that the positive pole certainly is the bubble in water, and the positive pole passes through the medium channel and does not influence the medium flow of pipeline, avoids causing the pressure drop, is unfavorable for the condition of pressure control.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 structural view of a cathodic protection device for a ground pipeline according to the present invention;

FIG. 2 is a schematic sectional view of the utility model A-A;

fig. 3 is a schematic side view of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-pipeline, 2-dropsy cavity, 3-connecting flange, 4-access opening, 5-access cover, 6-anode block, 7-fixed steel bar, 8-bolt, 9-blow-off pipe, 10-double blow-off valve and 11-medium channel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1-3, the utility model relates to a ground pipeline cathodic protection device, including pipeline 1, flange 3 is all installed to pipeline 1's both sides, and is connected with the ground pipeline through flange 3, pipeline 1's bottom is equipped with hydrops chamber 2, anode block 6 has been placed in hydrops chamber 2, anode block 6 is installed in the inner chamber bottom of hydrops chamber 2, the welding has fixed billet 7 in the inside wall of hydrops chamber 2, anode block 6 fixed mounting is on fixed billet 7, access hole 4 has been seted up at pipeline 1's top, install access cover 5 on the access hole 4, drain 9 is installed in the bottom connection of hydrops chamber 2.

Wherein, the outside of the access cover 5 is fixed with the outside of the access opening 4 through the fastening bolt piece in a sealing way.

Wherein, the middle part of access cover 5 is the same level with the outside end of pipeline 1, and the outside top external diameter of access cover 5 is the same with flange 3's external diameter.

Wherein, the bottom of the anode block 6 is provided with a medium channel 11, and the medium channel 11 is communicated with the hydrops cavity 2.

Wherein, seted up the mounting groove on the fixed billet 7, positive pole piece 6 is pegged graft in the mounting groove, and positive pole piece 6 passes through bolt 8 and fixed billet 7 fixed mounting.

Wherein, a double blow-off valve 10 is arranged on the blow-off pipe 9.

One specific application of this embodiment is: pipeline 1 passes through flange 3 external ground pipeline, liquid flows through pipeline 1, in hydrops chamber 2, the metal that the positive pole activity is strong loses the electron, receive the corruption, the poor metal of activity obtains the electron and receives the protection, the pipeline receives the protection as the negative pole, because at this in-process, the metal that the activity is strong is corroded, sacrifice the pipeline as the negative pole promptly of anode block 6 protection, anode block 6 fixed mounting is in hydrops chamber 2, fix and well contact through fixed billet 7, liquid accessible medium passageway 11 flows, avoid causing the pressure drop, be unfavorable for pressure control's the condition, regularly open access cover 5 on the access hole 4, change anode block 6, open two blowoff valves 10, impurity sewage accessible blow off pipe 9 in the hydrops chamber 2 regularly discharges.

It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth herein. The present invention is capable of other embodiments and of being practiced and carried out in a variety of ways. The foregoing variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined herein extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. The embodiments described herein explain the best modes known for practicing the invention and will enable others skilled in the art to utilize the invention.

Claims

1. The utility model provides a ground pipeline cathodic protection device, includes the pipeline, its characterized in that, flange is all installed to the both sides of pipeline, and is connected with the ground pipeline through flange, the bottom of pipeline is equipped with the hydrops chamber, the positive pole piece has been placed in the hydrops chamber, the inner chamber bottom in the hydrops chamber is installed to the positive pole piece, the welding has fixed billet in the inside wall in hydrops chamber, positive pole piece fixed mounting is on fixed billet, the access hole has been seted up at the top of pipeline, install the access cover on the access hole, the blow off pipe is installed in the bottom connection in hydrops chamber.

2. The cathodic protection device for a ground pipeline as recited in claim 1, wherein the outside of said access cover is sealingly fixed to the outside of said access opening by means of fastening bolts.

3. The cathodic protection device for a ground pipeline as recited in claim 1 wherein the access cover has a middle portion flush with the outside end of the pipeline and an outside top outside diameter equal to the outside diameter of the attachment flange.

4. The cathodic protection device for a ground pipeline as recited in claim 1, wherein a medium channel is opened at the bottom of the anode block, and the medium channel is communicated with the hydrops chamber.

5. The cathodic protection device for a ground pipeline as recited in claim 1, wherein the fixing steel bar is provided with an installation groove, the anode block is inserted into the installation groove, and the anode block is fixedly installed with the fixing steel bar through a bolt.

6. A cathodic protection device for a ground conduit as recited in claim 1 wherein a double blowdown valve is mounted on said blowdown pipe.