A rotating joint of a floating oil suction arm
By designing the rotating joint of the floating oil suction arm, and using the socket connection and adjustment device between the rotary mechanism and the fixing mechanism, the pipeline misalignment caused by the oil suction arm during the liquid surface movement is solved, and the oil quality is improved and the structural stability is achieved. , ensuring low impurity content and sealing properties of the oil.
Patent Information
- Application Number
- CN201911273519.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-12
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2039-12-12
AI Technical Summary
In the prior art, the oil-sucking arms in the petroleum storage tank are prone to pipeline misalignment when moving up and down the liquid surface, resulting in structural damage and poor oil quality. Traditional joints are prone to cause the rotary mechanism to be stuck, which cannot effectively reduce the content of oil impurities. .
A rotating joint of a floating oil-sucking arm is designed, and the rotating mechanism is connected to the socket of the fixing mechanism, and the adjustment device is combined to ensure sealing and rotationality. The sealing and flexibility of the joint is ensured through the horizontal connection shaft and the sealing gasket to avoid oil. product seepage.
It effectively avoids the slewing mechanism caused by horizontal movement of the oil-sucking arm, ensures that the oil-sucking arm moves with the liquid level, reduces the oil impurity content, and prevents oil from infiltration through the sealing device, and improves the quality of oil removal.
Smart Images
Figure CN110848487B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of oil storage tank pipelines, and in particular relates to a rotating joint of a floating oil suction arm. Background Art
[0002] There are many ways to store crude oil. External floating roof oil storage tanks have become the main facilities for storing crude oil above ground in various countries due to their advantages of low oil loss, environmental protection, and space saving. Long-term storage of oil in oil tanks will produce some debris precipitation. The traditional method of directly sucking oil from the bottom of the oil tank has a high impurity content.
[0003] In order to avoid high impurity content in the sucked oil, the prior art provides a float on the suction port of the suction pipe, which floats in the oil so that the suction port of the suction pipe is always at the lower end of the floating roof. The sucked oil is all from the upper area of the tank, which reduces the impurity content of the sucked oil. The lower end of the suction pipe is connected to the oil outlet pipe through a rotating joint. However, the prior art is a one-sided connection of the pipeline, which is prone to pipeline misalignment, restricting the up and down movement of the suction arm with the liquid level, making it impossible to guarantee the quality of the oil taken out, and more likely to cause structural damage. Summary of the invention
[0004] In view of the problems existing in the prior art, the present invention provides a rotating joint of a floating oil suction arm, which can avoid the jamming of the rotating mechanism caused by the horizontal movement of the oil suction arm, ensure that the oil suction arm moves with the flotation of the oil body liquid surface, reduce the occurrence of rotating joint failure problems, reduce the impurity content of the extracted oil, and at the same time, with the help of an adjusting device, ensure the sealing of the connection between the rotating mechanism and the fixed mechanism to prevent oil from seeping in.
[0005] The present invention is implemented as follows: a rotating joint of a floating oil suction arm includes a rotating mechanism and a fixed mechanism, wherein the inlet of the rotating mechanism is connected to the oil suction arm, and the outlet of the fixed mechanism is connected to the oil outlet pipe; the rotating mechanism includes a rotating pipe section, and the fixed mechanism is a circular structure surrounded by pipelines, wherein one part of the fixed mechanism is disconnected to form two inlets, and the two inlets of the fixed mechanism are respectively connected to the two ends of the rotating pipe section by sockets.
[0006] In the above technical solution, preferably, the fixing mechanism includes three parts: pipeline one, pipeline two and pipeline three, the two ends of pipeline one are respectively fixedly connected to one end of pipeline two and one end of pipeline three, and the other end of pipeline two and the other end of pipeline three are respectively connected to the two ends of the rotating pipe section.
[0007] In the above technical solution, it is further preferred that a horizontal connecting shaft is connected between the rotating pipe section and pipeline two and pipeline three, so that the rotating pipe section, pipeline two and pipeline three are tightly fitted. The horizontal connecting shaft passes through the rotating pipe section, pipeline two and pipeline three, and is fixed by a nut on the outside of pipeline three, and is connected to the adjusting device on the outside of pipeline two.
[0008] In the above technical solution, it is further preferred that the adjusting device includes a spring, a pressure cover and a nut, and the spring and the pressure cover are sequentially sleeved on the horizontal connecting shaft and fixed by a nut threaded connection.
[0009] In the above technical solution, it is further preferred that a protrusion one is provided on the outer side of the pipeline two at the horizontal connecting axis, a protrusion two is provided on the pressure cover, and the two ends of the spring are respectively mounted on the protrusion one and the protrusion two to limit the radial displacement of the spring.
[0010] In the above technical solution, it is further preferred that a sealing sleeve is provided on the outer side of the regulating device, and the sealing sleeve is fixed to the pipeline 2 by bolts.
[0011] In the above technical solution, it is further preferred that an end plate is mounted on the outer side of the pipeline three, and the end plate is fixed to the pipeline three by bolts.
[0012] In the above technical solution, it is further preferred that sealing gaskets are provided at the joints between the pipeline 2 and the rotary pipe section, and at the joints between the pipeline 3 and the rotary pipe section.
[0013] In the above technical solution, it is further preferred that an outlet pipe is connected to the middle of the outer side of pipeline one, the outlet pipe and pipeline one are integrally formed into a T-shaped structure pipeline, and the outlet end of the outlet pipe is connected to a flange.
[0014] In the above technical solution, it is further preferred that an inlet pipe is connected to the middle of the outer side of the rotating pipe section, the inlet pipe and the rotating pipe section are integrally formed into a T-shaped structure pipeline, and the inlet end of the inlet pipe is connected to a flange.
[0015] Compared with the prior art, the present invention has the following advantages and positive effects:
[0016] (1) The present invention has socket-and-spigot connection pipelines at both ends of the rotating mechanism, and the entire pipeline is a circular structure, which avoids the misalignment of the oil suction arm due to the horizontal movement of the oil floating cylinder on the liquid surface and reduces the probability of increased friction between the rotating mechanism and the fixed mechanism.
[0017] (2) The present invention is provided with an adjustment device, which calculates the range of change of the liquid depth in advance and adjusts the length of the spring inside, thereby changing the pre-tensioning force. A sealing gasket is used to seal the rotating mechanism and the fixed mechanism. A certain tensioning force ensures that the connection interface can rotate without infiltrating the oil body. The installation is simple and the connection is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A three-dimensional diagram of a rotary joint provided by an embodiment of the present invention;
[0019] Figure 2 A front view of a rotary joint provided by an embodiment of the present invention;
[0020] Figure 3 for Figure 2 A top view of
[0021] Figure 4 for Figure 2 Right view of;
[0022] Figure 5 for Figure 3 AA section view.
[0023] In the figure: 1-inlet pipe; 2-rotating pipe section; 3-outlet pipe; 4-flange; 5-pipeline one; 6-pipeline two; 61-protrusion one; 7-pipeline three; 8-sealing gasket; 9-horizontal connecting shaft; 10-end plate; 11-spring; 12-sealing sleeve; 13-pressure cover; 131-protrusion two; 14-nut. DETAILED DESCRIPTION
[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:
[0025] The present invention will be described in detail below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] In the description of the present invention, it is necessary to understand that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] Example
[0028] See also Figures 1 to 5The present embodiment provides a rotating joint of a floating oil suction arm, including a rotating mechanism and a fixed mechanism, the inlet of the rotating mechanism is connected to the oil suction arm, and the outlet of the fixed mechanism is connected to the oil outlet pipe; the rotating mechanism includes a rotating pipe section 2, the fixed mechanism is a circular structure surrounded by pipelines, one part of the fixed mechanism is disconnected to form two inlets, and the two inlets of the fixed mechanism are respectively connected to the two ends of the rotating pipe section 2 by socket connection, which can ensure that the rotating mechanism can rotate freely with the change of liquid level.
[0029] As a preferred embodiment, the fixing mechanism includes three parts, namely pipeline one 5, pipeline two 6 and pipeline three 7. The two ends of pipeline one 5 are respectively connected to one end of pipeline two 6 and one end of pipeline three 7 by bolts, which is convenient for installation and disassembly. In specific implementation, a sealing groove is also opened at the joint of the three pipelines, and a sealing ring is arranged in the sealing groove to ensure the sealing effect of the joint. The other end of pipeline two 6 and the other end of pipeline three 7 are respectively connected to the two ends of the rotating pipe section 2.
[0030] As a preferred embodiment, a horizontal connecting shaft 9 is connected between the rotating pipe section 2 and pipeline two 6 and pipeline three 7, so that the rotating pipe section 2 and pipeline two 6 and pipeline three 7 are closely fitted. The horizontal connecting shaft 9 passes through the rotating pipe section 2, pipeline two 6 and pipeline three 7, and is fixed by a nut on the outside of pipeline three 7. It is connected to the adjustment device on the outside of pipeline two 6, so that the rotating mechanism and the fixing mechanism are closely fitted. In specific implementation, the horizontal connecting shaft 9 is a stepped shaft at one end located on pipeline three 7, and the small shaft of the stepped shaft cooperates with pipeline three 7. The stepped shaft end of the horizontal connecting shaft 9 passes from the inside of pipeline three 7 to the outside, and the inside is against pipeline three 7 through the stepped surface, and the outside is fixed by a nut, thereby fixing the horizontal connecting shaft 9 to pipeline three 7; a sealing groove is also provided at the joint of the horizontal connecting shaft 9 and pipeline two 6 and pipeline three 7, and a sealing ring is provided in the sealing groove to ensure the sealing effect of the joint.
[0031] As a further preferred embodiment, the adjusting device comprises a spring 11, a gland 13 and a nut 14. The spring 11 and the gland 13 are sequentially sleeved on the horizontal connecting shaft 9 and are threadedly connected and fixed by the nut 14. The adjusting device is provided with a spring 11. By adjusting the position of the nut 14 and adjusting the length of the spring, a certain pressure exists between the rotating mechanism and the fixing mechanism, ensuring that the rotating mechanism and the fixing mechanism are in close contact.
[0032] As a further preferred embodiment, a protrusion 61 is provided on the outer side of the pipeline 6 at the horizontal connecting axis, a protrusion 131 is provided on the pressure cover 13, and the two ends of the spring 11 are respectively mounted on the protrusion 61 and the protrusion 131 to limit the radial displacement of the spring 11.
[0033] As a further preferred embodiment, a sealing sleeve 12 is provided on the outer side of the regulating device, and the sealing sleeve 12 is fixed to the pipeline 2 6 by bolts.
[0034] As a preferred embodiment, an end plate 10 is mounted on the outer side of pipeline three 7, and the end plate 10 is fixed to pipeline three 7 by 12 small bolts through threaded connection, so that pipeline three 7 and the end plate 10 do not have relative displacement. After the horizontal connecting shaft 9 is fixed in position with nuts on the outer side of pipeline three 7, the end plate 10 is fixed with bolts to ensure the sealing of pipeline three and at the same time ensure that the horizontal connecting shaft does not contact the external oil body.
[0035] As a preferred embodiment, sealing gaskets 8 are provided at the joints of pipeline 2 6 and rotary pipe section 2, and pipeline 3 7 and rotary pipe section 2, with two gaskets provided at each location, which can ensure that the oil does not pass through the gap between the rotary mechanism and the serpentine pipeline while allowing the rotary mechanism to rotate, and ensure that the internal cavity of the device does not infiltrate the external oil. In specific implementation, due to the tensioning effect of the spring 11, the two sets of sealing gaskets 8 at the joints of pipeline 2 6 and rotary pipe section 2, and pipeline 3 7 and rotary pipe section 2 are tightly fitted, and only relative rotation occurs without other movements, so that the floating oil suction arm floats with the liquid surface.
[0036] As a preferred embodiment, an outlet pipe 3 is connected to the middle of the outer side of pipeline 1 5. The outlet pipe 3 and pipeline 1 5 are integrally formed into a T-shaped structure pipeline. The outlet end of the outlet pipe 3 is connected to a flange 4 for convenient connection with other pipelines.
[0037] As a preferred embodiment, an inlet pipe 1 is connected to the middle of the outer side of the rotating pipe section 2. The inlet pipe 1 and the rotating pipe section 2 are integrally formed into a T-shaped structure pipeline. The inlet end of the inlet pipe 1 is connected to a flange 4 for easy connection with other pipelines.
[0038] Working principle of the present invention:
[0039] Since oil is stored in oil tanks for a long time, debris is precipitated at the bottom of the tanks. When oil is sucked from the floating roof, the oil suction arm may undergo horizontal displacement, resulting in misalignment between the rotating end and the fixed end of the rotating joint, causing increased friction, thereby reducing the freedom of movement of the rotating joint. The present invention utilizes a socket connection between the two ends of the slewing mechanism and the fixed mechanism to prevent the slewing mechanism from moving except for axial rotation, thereby ensuring that the floating oil suction arm connected thereto can rise and fall freely with the liquid level.
[0040] When in use, the connection of the rotating joint is completed by fastening the flange 4 at the inlet pipe 1 to the oil outlet flange of the oil suction arm with bolts, and fastening the flange 4 at the outlet pipe 3 to the oil inlet flange of the oil outlet pipe with bolts; at the same time, by presetting the length of the spring 11 in the end adjustment device of the horizontal connecting shaft 9, it is ensured that external oil cannot penetrate into the inner cavity of the rotating joint. Due to the elasticity of the spring 11, the rotating mechanism and the fixed mechanism are always in a close contact state, which also ensures that the rotating mechanism does not move in other directions except axial rotation.
[0041] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure and drawings of the present invention. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.
Claims
1. A rotating joint of a floating oil suction arm, comprising a rotating mechanism and a fixing mechanism, wherein the inlet of the rotating mechanism is connected to the oil suction arm, and the outlet of the fixing mechanism is connected to the oil outlet pipe; characterized in that: The rotary mechanism includes a rotary pipe section, the fixed mechanism is a circular structure surrounded by pipelines, one part of the fixed mechanism is disconnected to form two inlets, and the two inlets of the fixed mechanism are respectively connected to the two ends of the rotary pipe section by sockets to ensure that the rotary mechanism can rotate freely with the change of the liquid level; The fixing mechanism includes three parts: pipeline 1, pipeline 2 and pipeline 3. The two ends of pipeline 1 are fixedly connected to one end of pipeline 2 and one end of pipeline 3 respectively, and the other end of pipeline 2 and the other end of pipeline 3 are connected to the two ends of the rotating pipe section respectively. A horizontal connecting shaft is connected between the rotating pipe section and pipeline 2 and pipeline 3. The horizontal connecting shaft passes through the rotating pipe section, pipeline 2 and pipeline 3, and is fixed on the outside of pipeline 3 by a nut, and is connected to the regulating device on the outside of pipeline 2; The regulating device comprises a spring, a pressure cover and a nut. The spring and the pressure cover are sequentially sleeved on the horizontal connecting shaft and are fixed by threaded connection of the nut.
2. The rotating joint of the floating oil suction arm according to claim 1, characterized in that: The outer side of the second pipeline is provided with a protrusion 1 at the horizontal connecting axis, the gland is provided with a protrusion 2, and the two ends of the spring are respectively sleeved on the protrusion 1 and the protrusion 2 to limit the radial displacement of the spring.
3. The rotating joint of the floating oil suction arm according to claim 1, characterized in that: A sealing sleeve is sleeved on the outer side of the regulating device, and the sealing sleeve is fixed on the second pipeline by bolts.
4. The rotating joint of the floating oil suction arm according to claim 1, characterized in that: An end plate is sleeved on the outer side of the pipeline three, and the end plate is fixed on the pipeline three by bolts.
5. The rotating joint of the floating oil suction arm according to claim 1, characterized in that: Sealing pads are provided at the joints of the pipeline 2 and the rotary pipe section, and at the joints of the pipeline 3 and the rotary pipe section.
6. The rotating joint of the floating oil suction arm according to claim 1, characterized in that: An outlet pipe is connected to the middle part of the outer side of the pipeline one, and the outlet pipe and the pipeline one are integrally formed into a T-shaped structure pipeline, and the outlet end of the outlet pipe is connected to a flange.
7. The rotating joint of the floating oil suction arm according to claim 1, characterized in that: An inlet pipe is connected to the middle of the outer side of the rotating pipe section. The inlet pipe and the rotating pipe section are integrally formed into a T-shaped structure pipeline. The inlet end of the inlet pipe is connected to a flange.