阅读说明：本技术 一种浮动吸油臂的转动接头 (Rotating joint of floating oil suction arm ) 是由 金涛 于 2019-12-12 设计创作，主要内容包括：本发明涉及一种浮动吸油臂的转动接头,包括回转机构与固定机构,回转机构包括回转管段,固定机构为由管路围成的回形结构,固定机构的一处断开形成两个入口,固定机构两个入口与回转管段两端分别承插连接；固定机构包括管路一、管路二和管路三,管路一两端分别与管路二一端、管路三一端连接,管路二另一端、管路三另一端分别与回转管段两端连接；回转管段与管路二、管路三之间连接有水平连接轴,水平连接轴贯穿回转管段、管路二和管路三,并在管路三外侧通过螺母固定,在管路二外侧与调节装置相连。本发明避免了由于吸油臂发生水平方向运动而造成回转机构的卡死,同时借助调节装置,保证回转机构与固定机构连接处的密封,防止油品渗入。(The invention relates to a rotary joint of a floating oil absorption arm, which comprises a rotary mechanism and a fixing mechanism, wherein the rotary mechanism comprises a rotary pipe section, the fixing mechanism is a circular structure surrounded by pipelines, one part of the fixing mechanism is disconnected to form two inlets, and the two inlets of the fixing mechanism are respectively in socket joint connection with the two ends of the rotary pipe section; the fixing mechanism comprises a first pipeline, a second pipeline and a third pipeline, wherein two ends of the first pipeline are respectively connected with one end of the second pipeline and one end of the third pipeline, and the other ends of the second pipeline and the third pipeline are respectively connected with two ends of the rotary pipe section; and a horizontal connecting shaft is connected between the rotary pipe section and the second pipeline and between the rotary pipe section and the third pipeline, penetrates through the rotary pipe section, the second pipeline and the third pipeline, is fixed on the outer side of the third pipeline through nuts, and is connected with an adjusting device on the outer side of the second pipeline. The invention avoids the blockage of the swing mechanism caused by the horizontal movement of the oil absorption arm, and simultaneously ensures the sealing of the connection part of the swing mechanism and the fixing mechanism by virtue of the adjusting device to prevent oil from permeating.)

1. A rotary joint of a floating oil absorption arm comprises a rotary mechanism and a fixing mechanism, wherein an inlet of the rotary mechanism is connected with the oil absorption arm, and an outlet of the fixing mechanism is connected with an oil outlet pipe; the device is characterized in that the rotary mechanism comprises a rotary pipe section, the fixing mechanism is a circular structure formed by surrounding pipelines, one part of the fixing mechanism is disconnected to form two inlets, and the two inlets of the fixing mechanism are respectively connected with two ends of the rotary pipe section in a socket joint mode.

2. The rotary joint of the floating oil absorption arm as claimed in claim 1, wherein the fixing mechanism comprises a first pipeline, a second pipeline and a third pipeline, two ends of the first pipeline are fixedly connected with one end of the second pipeline and one end of the third pipeline respectively, and the other end of the second pipeline and the other end of the third pipeline are connected with two ends of the rotary pipe section respectively.

3. The rotary joint of the floating oil absorption arm as claimed in claim 2, wherein a horizontal connecting shaft is connected between the rotary pipe section and the second and third pipelines, penetrates through the rotary pipe section, the second pipeline and the third pipeline, is fixed on the outer side of the third pipeline through nuts, and is connected with an adjusting device on the outer side of the second pipeline.

4. The rotary joint of the floating oil absorption arm as claimed in claim 3, wherein the adjusting device comprises a spring, a gland and a nut, the spring and the gland are sequentially sleeved on the horizontal connecting shaft and are fixedly connected through the nut in a threaded manner.

5. The rotary joint of the floating oil absorption arm as claimed in claim 4, wherein a first protrusion is arranged at the horizontal connecting shaft at the outer side of the second pipeline, a second protrusion is arranged on the gland, and two ends of the spring are respectively sleeved on the first protrusion and the second protrusion to limit the radial displacement of the spring.

6. The rotary joint of the floating oil absorption arm as claimed in claim 3, wherein a sealing sleeve is sleeved outside the adjusting device, and the sealing sleeve is fixed on the second pipeline through a bolt.

7. The rotary joint of the floating oil suction arm as claimed in claim 2, wherein an end disc is sleeved outside the third pipeline, and the end disc is fixed on the third pipeline through a bolt.

8. The rotary joint of the floating oil suction arm as claimed in claim 2, wherein the joints of the second pipeline and the rotary pipe section and the joints of the third pipeline and the rotary pipe section are provided with sealing gaskets.

9. The rotary joint of the floating oil absorption arm as claimed in claim 2, wherein an outlet pipe is connected to the middle of the outer side of the first pipeline, the outlet pipe and the pipeline are integrally formed into a pipeline with a T-shaped structure, and a flange is connected to the outlet end of the outlet pipe.

10. The rotary joint of the floating oil suction arm as claimed in claim 2, wherein an inlet pipe is connected to the middle part of the outer side of the rotary pipe section, the inlet pipe and the rotary pipe section are integrally formed into a pipeline with a T-shaped structure, and the inlet end of the inlet pipe is connected with a flange.

Technical Field

The invention belongs to the technical field of petroleum storage tank pipelines, and particularly relates to a rotary joint of a floating oil absorption arm.

Background

Crude oil is stored in various ways, and the external floating roof oil storage tank has become a main facility for storing crude oil on various countries due to the advantages of low oil product loss, environmental protection, land occupation saving and the like. The long-term storage of oil can produce partial debris and deposit in the oil tank, adopts the mode that the oil was directly drawn from the oil tank bottoms to the tradition, and the oil impurity content of absorption is high.

In order to avoid high content of absorbed petroleum impurities, in the prior art, the floating barrel is arranged on the oil suction opening of the oil suction pipe, the floating barrel floats in petroleum, so that the oil suction opening of the oil suction pipe is always positioned at the lower end of the floating roof, the absorbed petroleum is the petroleum in the upper layer of the storage tank, the content of the absorbed petroleum impurities is reduced, and the lower end of the oil suction pipe is connected with the oil outlet pipe through a rotary joint. However, in the prior art, the pipeline is connected at one side, pipeline dislocation is easy to occur, the oil suction arm is limited to move up and down along with the liquid level, the quality of the taken oil cannot be guaranteed, and the structure is easy to damage.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a rotary joint of a floating oil absorption arm, which can avoid the blockage of a rotary mechanism caused by the movement of the oil absorption arm in the horizontal direction, ensure that the oil absorption arm moves along with the air floatation of the liquid level of an oil body, reduce the failure problem of the rotary joint, reduce the impurity content of the taken-out oil, and simultaneously ensure the sealing of the joint of the rotary mechanism and a fixed mechanism by means of an adjusting device to prevent the oil from permeating.

The invention is realized in such a way that the rotary joint of the floating oil absorption arm comprises a rotary mechanism and a fixed mechanism, wherein the inlet of the rotary mechanism is connected with the oil absorption arm, and the outlet of the fixed mechanism is connected with an oil outlet pipe; the rotary mechanism comprises a rotary pipe section, the fixing mechanism is a clip-shaped structure formed by surrounding pipelines, one part of the fixing mechanism is disconnected to form two inlets, and the two inlets of the fixing mechanism are respectively connected with the two ends of the rotary pipe section in a socket joint mode.

In the above technical scheme, preferably, the fixing mechanism includes a first pipeline, a second pipeline and a third pipeline, two ends of the first pipeline are respectively and fixedly connected with one end of the second pipeline and one end of the third pipeline, and the other end of the second pipeline and the other end of the third pipeline are respectively connected with two ends of the rotary pipe section.

In the above technical solution, it is further preferable that a horizontal connecting shaft is connected between the rotary pipe section and the second and third pipelines, the rotary pipe section is closely attached to the second and third pipelines, the horizontal connecting shaft penetrates through the rotary pipe section, the second pipeline and the third pipeline and is fixed at the outer side of the third pipeline by a nut, and the outer side of the second pipeline is connected to the adjusting device.

In the above technical solution, it is further preferable that the adjusting device includes a spring, a gland and a nut, and the spring and the gland are sequentially sleeved on the horizontal connecting shaft and are fixed by the nut through threaded connection.

In the above technical solution, it is further preferable that a first protrusion is disposed at the horizontal connecting shaft outside the second pipeline, a second protrusion is disposed on the gland, and two ends of the spring are respectively sleeved on the first protrusion and the second protrusion to limit radial displacement of the spring.

In the above technical solution, it is further preferable that a sealing sleeve is sleeved outside the adjusting device, and the sealing sleeve is fixed on the second pipeline through a bolt.

In the above technical solution, it is further preferable that an end disc is sleeved outside the third pipeline, and the end disc is fixed to the third pipeline through a bolt.

In the above technical solution, it is further preferable that a joint of the second pipeline and the rotary pipe section and a joint of the third pipeline and the rotary pipe section are provided with a sealing gasket.

In the above technical scheme, it is further preferable that the middle part of the outer side of the first pipeline is connected with an outlet pipe, the outlet pipe and the pipeline are integrally formed into a pipeline with a similar T-shaped structure, and the outlet end of the outlet pipe is connected with a flange.

In the above technical solution, it is further preferable that an inlet pipe is connected to the middle portion of the outer side of the rotary pipe section, the inlet pipe and the rotary pipe section are integrally formed into a pipeline having a similar T-shaped structure, and an inlet end of the inlet pipe is connected to a flange.

Compared with the prior art, the invention has the advantages and positive effects that:

(1) the two ends of the swing mechanism are respectively inserted and connected with the pipeline, and the whole pipeline is of a clip structure, so that the dislocation of the oil suction arm caused by the horizontal movement of the oil floating cylinder on the liquid level is avoided, and the probability of increasing the friction force between the swing mechanism and the fixing mechanism is reduced.

(2) The invention is provided with the adjusting device, the change range of the liquid depth is calculated in advance, the length of the spring inside the adjusting device is adjusted, so that the pre-tensioning force is changed, the rotating mechanism and the fixing mechanism are sealed by the sealing gasket, the connecting interface can rotate under certain tensioning force without oil body infiltration, the installation is simple, and the connection is convenient.

Drawings

FIG. 1 is a perspective view of a rotary joint provided by an embodiment of the present invention;

FIG. 2 is a front view of a rotary joint provided by an embodiment of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a right side view of FIG. 2;

fig. 5 is a sectional view a-a of fig. 3.

In the figure: 1-an inlet pipe; 2-a rotary pipe section; 3-an outlet pipe; 4-a flange plate; 5, a first pipeline; 6-pipeline two; 61-projection one; 7-pipeline III; 8-a sealing gasket; 9-a horizontal connecting shaft; 10-end disk; 11-a spring; 12-a sealing sleeve; 13-a gland; 131-a second bump; 14-nut.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:

the present invention will now be described in detail with reference to the drawings in which embodiments of the invention are shown, wherein the embodiments described are only a part, and not all, of the embodiments of the 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.

In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.