A loading arm structure with anti-oil spill function

Abstract

The application discloses a loading arm structure with an anti-oil spill function, and relates to the technical field of fluid loading and unloading equipment. The loading arm structure comprises a stand, a large arm, a small arm and a telescopic vertical pipe, and is characterized in that a hollow baffle ring is arranged in the proximal end of the small arm, the baffle ring is arranged to make the inner bottom surface of the proximal end of the small arm be lifted by at least 3 degrees relative to the inner bottom surface of the distal end of the small arm, the proximal end of the small arm is one end of the small arm connected with the telescopic vertical pipe, and the distal end of the small arm is one end of the small arm connected with the large arm. The baffle ring is arranged in the proximal end of the small arm at one end of the telescopic vertical pipe, a "dam" mode is formed by the baffle ring, the end of the small arm is lifted by at least 3 degrees, and therefore, even if the small arm loses the horizontal state during the recovery process, as long as the angle is not greater than 3 degrees, the residual medium can be blocked by the baffle ring, and the liquid overflow pollution of the environment can be avoided.

Description

Technical Field

[0001] This application relates to the field of fluid loading and unloading equipment technology, specifically to an loading arm structure with an oil spill prevention function. Background Technology

[0002] A fluid loading arm, also known as an arm-mounted loading arm, mainly consists of a column, a horizontal boom, a horizontal jib, and a telescopic drop pipe.

[0003] When loading and unloading media such as gasoline and ethanol, the boom and forearm are rotated. The main boom rotates approximately 180° and the forearm rotates approximately 300°. After the boom reaches the designated position, the telescopic plumb line enters the tanker to add the media. After the media is added, the telescopic plumb line moves back to its original position from the tanker. After waiting for 3 minutes until all the media drips out of the plumb line, the boom is rotated back to its original position.

[0004] Construction work cannot guarantee the verticality of the column installation, nor can it guarantee the horizontality of the boom and forearm during rotation. Often, the end of the forearm will tilt downwards due to non-horizontalness, resulting in a high probability of overflow. Utility Model Content

[0005] The main purpose of this application is to provide a loading arm structure with an oil spill prevention function, which aims to prevent residual liquid leakage and protect the environment.

[0006] The technical solution adopted in this application is as follows: An oil spill prevention loading arm structure includes a column, a boom, a forearm, and a telescopic vertical tube. A hollow retaining ring is provided inside the proximal end of the forearm, and the retaining ring raises the inner bottom surface of the proximal end of the forearm by at least 3° relative to the inner bottom surface of the distal end of the forearm. The proximal end of the forearm is the end that connects to the telescopic vertical tube, and the distal end of the forearm is the end that connects to the upper arm.

[0007] Furthermore, the retaining ring is welded to the inside of the forearm.

[0008] Furthermore, the large arm rotates horizontally at the top of the column.

[0009] Furthermore, the horizontal rotation angle of the boom is 0-180°.

[0010] Furthermore, the forearm rotates horizontally at the end of the upper arm that is away from the column.

[0011] Furthermore, the horizontal rotation angle of the forearm is 0-300°. Compared with the prior art, the beneficial effects of this application are: The present application proposes an arm structure with anti-oil spill function. By setting a retaining ring inside the end of the forearm located in the telescopic vertical tube, the retaining ring forms a "dam"-like structure, which effectively raises the end of the forearm upward by at least 3°. Therefore, even if the forearm loses its horizontal position during the retrieval process, as long as its angle is not greater than 3°, the residual medium will be blocked by the retaining ring, and no liquid overflow will occur to pollute the environment. Attached Figure Description

[0012] Figure 1 This is a front view of an arm-mounted loading arm structure with anti-oil spill function provided in an embodiment of this application; Figure 2 A top view of an arm-mounted loading arm structure with anti-oil spill function provided in an embodiment of this application; Figure 3 Side view of the loading arm structure with oil spill prevention function provided in the embodiments of this application. Figure 4 for Figure 1 Enlarged sectional view at point E.

[0013] Explanation of the labels in the attached drawings: 1-Forearm, 2-Telescopic plumb bob, 3-Stop ring, 4-Upright arm, 5-Column. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0015] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0016] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0017] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0018] See attached document Figures 1 to 3 This application provides an oil spill prevention loading arm structure, including a column 5, a boom 4, a forearm 1, and a telescopic drop pipe 2. In a conventional design, the column 5 is fixed to the ground, one end of the boom 4 is connected to the column 5, and the other end is connected to the forearm 1. One end of the forearm 1 is connected to the boom 4, and the other end is connected to the telescopic drop pipe 2. As shown in the example... Figure 2 As shown, the upper arm 4 can rotate 90° clockwise and 90° counterclockwise about its position axis, while the lower arm 1 can rotate 150° clockwise and 150° counterclockwise about its position axis.

[0019] It should be noted that the installation method of the column 5, the upper arm 4, the lower arm 1 and the telescopic plumb tube 2, as well as the driving method for rotating the upper arm 4 and the lower arm 1, are all industry standard designs and have not been adjusted in this application. Therefore, this part will not be described in detail here.

[0020] The difference is that, for ease of understanding and description, in this application, the end where the forearm 1 connects to the upper arm 4 is the distal end of the forearm 1, and the end where the forearm 1 connects to the telescopic vertical tube 2 is the proximal end of the forearm 1. As an improvement, such as... Figure 4As shown, in this application, a hollow retaining ring 3 is fixedly installed inside the proximal tube of the forearm 1 by welding. The retaining ring 3 makes the inner wall of the forearm 1 resemble a "dam," thereby raising the inner bottom surface of the proximal end of the forearm 1 by at least 3° relative to the inner bottom surface of the distal end. Therefore, during use, the main tube of the upper arm 4 can rotate left and right by 0 to 90°, and the forearm 1 can rotate left and right by 0 to 150°, facilitating the loading and unloading of liquid media. When loading is finished, the residual media in the vertical tube drips out. After stopping for about 3 minutes, the recovery action is performed. During the recovery process, there is a high probability that the forearm 1 will not be horizontal, but usually the downward angle of the forearm 1 will not exceed 3°. Therefore, since the retaining ring 3 simulates the actual effect of the forearm 1 tilting upward by 3°, it prevents the residual liquid from overflowing. This device is simple and reliable to implement, and prevents abnormal overflow of residual liquid.

[0021] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A loading arm structure with oil spill prevention function, comprising a column, a boom, a forearm, and a telescopic drop pipe, characterized in that, A hollow retaining ring is provided inside the proximal end of the forearm, and the retaining ring is provided such that the inner bottom surface of the proximal end of the forearm is raised by at least 3° relative to the inner bottom surface of the distal end of the forearm. The proximal end of the forearm is the end that connects to the telescopic vertical tube, and the distal end of the forearm is the end that connects to the upper arm.

2. The loading arm structure with oil spill prevention function according to claim 1, characterized in that, The retaining ring is welded to the inside of the forearm.

3. The loading arm structure with anti-oil spill function according to claim 1, characterized in that, The boom rotates horizontally at the top of the column.

4. The loading arm structure with anti-oil spill function according to claim 2, characterized in that, The horizontal rotation angle of the boom is 0-180°.

5. The loading arm structure with anti-oil spill function according to claim 1, characterized in that, The forearm rotates horizontally at the end of the upper arm away from the column.

6. The loading arm structure with anti-oil spill function according to claim 5, characterized in that, The horizontal rotation angle of the forearm is 0-300°.

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