CN216952119U

CN216952119U - Corrosion-resistant rotary joint for strong acid

Info

Publication number: CN216952119U
Application number: CN202220097623.5U
Authority: CN
Inventors: 刘昌齐; 仲光; 刘淼
Original assignee: Lianyungang Huatai Petro Chemical Machinery Co ltd
Current assignee: Lianyungang Huatai Petro Chemical Machinery Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-07-12
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to the technical field of pipeline joints, in particular to a corrosion-resistant rotary joint for strong acid, which comprises an engagement pipeline, wherein the top of the engagement pipeline is fixedly connected with a main pipeline through a flange and a bolt, a sealing ring, a sealing bearing and a positioning ring are sequentially embedded in the outer wall of the top of the main pipeline from top to bottom, a positioning groove is formed in the inner wall of the top end of the main pipeline, the outer part of the sealing bearing is wrapped on a conversion pipeline, the improved rotary joint can realize the sealing performance of a connecting part between the conversion pipeline and the upper end of the main pipeline by the matching between the sealing ring and the sealing bearing, the conversion pipeline can be rotationally adjusted by using a central axis as the center of a circle through the sealing bearing, the positioning ring can keep the coaxiality between the conversion pipeline and the main pipeline in the rotational adjustment process, and the inner wall of the pipeline and strong acid liquid can be isolated by using a corrosion-resistant coating covered by the inner wall of each pipeline, the corrosion of the strong acid liquid to the inner wall of the pipeline is reduced as much as possible.

Description

Corrosion-resistant rotary joint for strong acid

Technical Field

The utility model relates to the technical field of pipeline joints, in particular to a corrosion-resistant rotary joint for strong acid.

Background

The rotary joint is a pipeline connecting device, and the connected pipelines can rotate relatively, can be used for conveying various media such as gas, liquid, oil and the like, have compact design structures, are connected in a flange manner, and are effectively integrated into customer equipment; the rotary joint is used for connecting the cylindrical, drum, truncated cone and spherical rotating equipment which uses steam, water, oil, gas, air, salt water, ammonia and other gases and liquids for heating, drying and cooling, reciprocating or swinging at any angle, and the pneumatic and hydraulic related equipment for clamping, braking and holding, and can be used safely in the case of severe environmental conditions such as high temperature, high pressure and the like, wherein the rotary joint is used for inputting the liquid into the rotating or reciprocating equipment from the side of a pipeline and then discharging the liquid from the pipeline.

The prior patent (publication number: CN214889551U) discloses a rotary joint convenient to connect and good in sealing performance, which comprises a pipe body, wherein a bearing is installed on one side in the pipe body through a screw, a T-shaped pipe is arranged at one end of the pipe body, one end of the T-shaped pipe penetrates through the pipe body and is positioned in the bearing, a first thread is arranged on the outer surface of the T-shaped pipe, a sleeve pipe is arranged on the periphery of the T-shaped pipe, a second thread corresponding to the first thread is arranged on the inner side surface of the sleeve pipe, and a first rubber ring is connected to the other side in the sleeve pipe in a gluing mode. The rotary joint convenient to connect and good in sealing performance can effectively improve the sealing performance of the connection between the rotary joint and a pipeline, can enhance the connection strength between the rotary end and an external pipeline, and is suitable for wide popularization and use. The inventor finds the following problems in the prior art in the process of implementing the utility model: 1. the existing rotary joint has a simpler internal structure, the sealing performance of the joint is insufficient, the rotary adjusting range of people in the using process is smaller, and the using requirements of people cannot be well met; 2. the general strong acid conveying pipeline has corrosion resistance during production, the corrosion phenomenon still occurs in the long-time practical process, the material strength of the pipeline is reduced along with the corrosion resistance, and the condition of fracture and leakage is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a corrosion-resistant rotary joint for strong acid, which solves the problems in the background technology. In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a corrosion-resistant rotary joint is used to strong acid, is including linking up the pipeline, flange and bolt fixedly connected with trunk line are passed through at the top that links up the pipeline, and the top outer wall top-down of trunk line is embedded in proper order has sealing washer, sealed bearing and position circle, the constant head tank has been seted up to the top inner wall of trunk line, sealed bearing's outside wraps up in the conversion pipeline, and the top one side fixedly connected with drainage tube of conversion pipeline.

Further preferably, the central axis of the connecting pipeline coincides with the central axis of the main pipeline.

Further preferably, the central axes of the sealing ring, the sealing bearing and the locating ring coincide with each other, and the outer walls of the sealing ring, the sealing bearing and the locating ring are all embedded in the inner wall of the conversion pipeline.

Further preferably, the inner walls of the connecting pipeline, the main pipeline, the switching pipeline and the drainage tube are coated with corrosion-resistant coatings.

Further preferably, the switching duct is configured to rotate by a sealed bearing.

Preferably, the conversion pipeline and the drainage tube are of an integrated structure, and the central axis of the conversion pipeline is perpendicular to the central axis of the drainage tube.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the coaxiality between the connecting pipeline and the main pipeline can maintain the sealing performance of the joint of the connecting pipeline and the main pipeline, so that the phenomenon of connection leakage is avoided, the sealing performance of the joint between the switching pipeline and the upper end of the main pipeline can be realized by virtue of the matching between the sealing ring and the sealing bearing, the rotation adjustment operation of the switching pipeline by taking the central axis as the center of a circle can be realized through the sealing bearing, and the coaxiality between the switching pipeline and the main pipeline in the rotation adjustment process can be maintained by the positioning ring.

According to the utility model, the corrosion-resistant coating covered on the inner wall of each pipeline can be used for isolating the inner wall of the pipeline from the strong acid liquid, so that the corrosion of the strong acid liquid on the inner wall of the pipeline is reduced as much as possible, and the conversion pipeline and the drainage tube are cast integrally, so that the synchronism of the conversion pipeline and the drainage tube in the using process is kept.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic front view of a half-section configuration of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. connecting the pipelines; 2. a main pipeline; 3. a seal ring; 4. sealing the bearing; 5. positioning a ring; 6. Positioning a groove; 7. switching pipelines; 8. a drainage tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a worker skilled in the art based on the embodiments of the present invention without making creative efforts, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a corrosion-resistant rotary joint is used to strong acid, is including linking up pipeline 1, and flange and bolt fixedly connected with trunk line 2 are passed through at the top that links up pipeline 1, and the top outer wall top-down of trunk line 2 has embedded sealing washer 3, sealed bearing 4 and position circle 5 in proper order, and constant head tank 6 has been seted up to the top inner wall of trunk line 2, and sealed bearing 4's outside parcel is in conversion pipeline 7, and conversion pipeline 7's top one side fixedly connected with drainage tube 8.

In this embodiment, as shown in fig. 1 and fig. 2, the central axis of the connecting pipeline 1 coincides with the central axis of the main pipeline 2; the coaxiality between the connecting pipeline 1 and the main pipeline 2 can keep the sealing performance of the joint of the connecting pipeline 1 and the main pipeline, and the phenomenon of connection leakage is avoided.

In this embodiment, as shown in fig. 2 and 3, the central axes of the seal ring 3, the seal bearing 4 and the positioning ring 5 are overlapped, and the outer walls of the seal ring 3, the seal bearing 4 and the positioning ring 5 are all embedded in the inner wall of the switching pipeline 7; rely on the cooperation between sealing washer 3 and the sealing bearing 4 can realize the leakproofness of junction between switching pipeline 7 and the trunk line 2 upper end, wherein can realize through sealing bearing 4 that switching pipeline 7 uses the axis to carry out the rotation regulation operation as the centre of a circle, and the position circle 5 can keep the axiality of switching pipeline 7 between rotation regulation in-process and trunk line 2.

In the embodiment, as shown in fig. 1 and 2, the inner walls of the connecting pipeline 1, the main pipeline 2, the switching pipeline 7 and the drainage pipe 8 are coated with corrosion-resistant coatings; the corrosion-resistant coating covered on the inner wall of each pipeline can be used for isolating the inner wall of each pipeline from the strong acid liquid, so that the corrosion of the strong acid liquid to the inner wall of each pipeline is reduced as much as possible.

In the present embodiment, as shown in fig. 2, the switching duct 7 constitutes a rotary structure via the seal bearing 4.

In this embodiment, as shown in fig. 1 and 2, the switching duct 7 and the draft tube 8 are of an integrated structure, the central axis of the switching duct 7 is perpendicular to the central axis of the draft tube 8, and the switching duct 7 and the draft tube 8 are cast integrally, which maintains the synchronization of the two in the using process.

The use method and the advantages of the utility model are as follows: when the corrosion-resistant rotary joint for strong acid is rolled, the working process is as follows:

as shown in fig. 1, fig. 2 and fig. 3, firstly, the coaxiality between the connecting pipeline 1 and the main pipeline 2 can be maintained to maintain the sealing performance of the connecting part between the connecting pipeline 1 and the main pipeline 2, the phenomenon of connection leakage is avoided, the sealing performance of the connecting part between the switching pipeline 7 and the upper end of the main pipeline 2 can be realized by means of the matching between the sealing ring 3 and the sealing bearing 4, wherein the switching pipeline 7 can be rotated and adjusted by taking the central axis as the center of a circle through the sealing bearing 4, the positioning ring 5 can maintain the coaxiality between the switching pipeline 7 and the main pipeline 2 in the rotating and adjusting process, the corrosion-resistant coating covered by the inner wall of each pipeline can isolate the inner wall of the pipeline from the strong acid liquid, the corrosion of the strong acid liquid to the inner wall of the pipeline is reduced as much as possible, the switching pipeline 7 and the drainage tube 8 are cast integrally, and the synchronization in the using process is maintained.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a strong acid is with corrosion-resistant rotary joint, is including linking up pipeline (1), its characterized in that: flange and bolt fixedly connected with trunk line (2) are passed through at the top that links up pipeline (1), and the top outer wall top-down of trunk line (2) is embedded in proper order has sealing washer (3), sealed bearing (4) and position circle (5), constant head tank (6) have been seted up to the top inner wall of trunk line (2), the outside of sealed bearing (4) is wrapped up in conversion pipeline (7), and top one side fixedly connected with drainage tube (8) of conversion pipeline (7).

2. A corrosion resistant swivel joint for strong acids according to claim 1, wherein: the central axis of the connecting pipeline (1) coincides with the central axis of the main pipeline (2).

3. A corrosion resistant swivel joint for strong acids according to claim 1, wherein: the sealing ring (3), the sealing bearing (4) and the locating ring (5) are overlapped with each other, and the outer walls of the sealing ring (3), the sealing bearing (4) and the locating ring (5) are all embedded in the inner wall of the conversion pipeline (7).

4. A corrosion resistant swivel joint for strong acids according to claim 1, wherein: the inner walls of the connecting pipeline (1), the main pipeline (2), the conversion pipeline (7) and the drainage pipe (8) are coated with corrosion-resistant coatings.

5. A corrosion resistant swivel joint for strong acids according to claim 1, wherein: the switching pipeline (7) forms a rotating structure through a sealing bearing (4).

6. A corrosion resistant swivel joint for strong acids according to claim 1, wherein: the conversion pipeline (7) and the drainage tube (8) are of an integrated structure, and the central axis of the conversion pipeline (7) is perpendicular to the central axis of the drainage tube (8).