Atmospheric storage tank sampling tool

Abstract

The utility model relates to an oil product sampling device, in particular to a normal pressure storage tank sampling tool which comprises a sampling hanging kettle, the interior of the sampling hanging kettle is divided into a plurality of independent sampling spaces, each sampling space is provided with an independent sampling opening, each sampling opening is plugged through an independent sampling wooden plug, and the sampling wooden plug is connected with the sampling hanging kettle. Each sampling wooden plug is connected with an independent sampling plug rope, the sampling hanging kettle is hung in the storage tank, the plurality of sampling plug ropes extend out of the storage tank, and the sampling wooden plugs in the storage tank are separated from the corresponding sampling ports by pulling the sampling plug ropes. The inner part of the kettle body of the sampling hanging kettle is divided into a plurality of independent spaces, so that oil products at the upper, middle and lower liquid levels in a storage tank can be obtained only by putting the sampling hanging kettle into the tank once during sampling each time, the field operation frequency is reduced, and the field operation risk is also reduced.

Description

Technical Field

[0001] This utility model relates to an oil sampling device, specifically to a sampling fixture for an atmospheric pressure storage tank. Background Technology

[0002] In the chemical production process, liquid oil products are stored in atmospheric pressure storage tanks. Because the density of materials entering the tank at different times is different, the oil products in the tank are severely separated. In order to ensure the quality of the oil products in the tank, it is necessary to take oil samples from the upper, middle and lower points of the tank liquid level. However, the current operation method uses a dropper to take oil samples from the tank in three separate operations. This multiple operation not only increases the workload of personnel, but also increases the safety risks on site. Summary of the Invention

[0003] In view of the defects of the existing technology, the purpose of this utility model is to provide a sampling tool for atmospheric pressure storage tanks. By dividing the interior of the sampling vessel into three independent spaces, the sampling vessel only needs to be placed in the tank once each time a sample is taken, so as to achieve the oil level at the upper, middle and lower points of the liquid level in the storage tank.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sampling fixture for an atmospheric pressure storage tank, including a sampling jug, the sampling jug being divided into several independent sampling spaces, each sampling space being provided with a separate sampling port, each sampling port being sealed by a separate sampling plug, each sampling plug being connected to a separate sampling rope, the sampling jug being suspended inside the storage tank, and several sampling ropes extending outside the storage tank, the sampling plugs inside the storage tank being separated from the corresponding sampling ports by pulling the sampling ropes.

[0005] Furthermore, the sampling vessel is divided into three independent sampling spaces, corresponding to the upper, middle, and lower points of the liquid level in the storage tank for sampling oil.

[0006] Furthermore, the sampling space is divided into upper and lower layers inside the sampling vessel, and several sampling ports are staggered and arranged on the side surface of the sampling vessel.

[0007] Furthermore, the sampling vessel enters the oil in the storage tank through a sampling port located on the top platform of the storage tank during sampling.

[0008] Furthermore, a sampling plug hanging ring is fixed on the sampling plug, and the sampling plug rope is connected to the sampling plug hanging ring.

[0009] Furthermore, a sampling vessel lifting lug is fixed to the neck of the sampling vessel, and a sampling vessel body rope is connected to the sampling vessel lifting lug. The sampling vessel is suspended in the storage tank by the sampling vessel body rope, and the sample in the storage tank is extracted from bottom to top.

[0010] Furthermore, an electrostatic clip is attached to the end of the rope on the sampling vessel, and during sampling, the electrostatic clip is fixed at the electrostatic grounding point.

[0011] Furthermore, the sampling vessel starts from the bottom of the storage tank and takes samples from bottom to top, filling each sampling space.

[0012] In the production and operation of the spherical tank, after the liquefied gas product is filled and sealed, the operator uses a sampling tool to take materials from three different locations inside the tank. After the product analysis is qualified, it is shipped out of the factory.

[0013] The beneficial effects of this utility model are as follows: by dividing the interior of the sampling vessel into several independent spaces, the sampling vessel only needs to be placed into the tank once each time a sample is taken, which can achieve the oil level at the upper, middle and lower points in the storage tank, thus reducing the frequency of on-site operations and reducing on-site operational risks. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a sampling fixture for an atmospheric pressure storage tank according to the present invention.

[0015] Figure 2 This is a schematic diagram of the storage tank;

[0016] In the diagram: 1. Storage tank, 2. Sampling port, 3. Sampling pot, 301. Sampling space, 4. Sampling stopper, 5. Sampling stopper ring, 6. Sampling stopper rope, 7. Sampling pot hanging lug, 8. Sampling pot body rope, 9. Sampling pot body rope electrostatic clamp. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] See appendix Figure 1-2A sampling fixture for an atmospheric pressure storage tank includes a sampling vessel 3. During sampling, the sampling vessel 3 enters the oil in the storage tank 1 through a sampling port 2 located on the top platform of the storage tank 1. The sampling vessel 3 is internally divided into three independent sampling spaces 301, corresponding to sampling oil at the upper, middle, and lower points of the liquid level in the storage tank 1. Each sampling space 301 is provided with a separate sampling port, each sampling port is sealed by a separate sampling plug 4, and each sampling plug 4 is fixed with a separate sampling plug ring 5. A sampling plug rope 6 is connected to the sampling plug ring 5. The sampling vessel 3 is suspended inside the storage tank 1, and several sampling plug ropes 6 extend outside the storage tank 1. By pulling the sampling plug ropes 6, the sampling plug 4 inside the storage tank 1 is separated from the corresponding sampling port. The sampling vessel 3 has a sampling vessel lifting lug 7 fixed to its neck. A sampling vessel body rope 8 is connected to the sampling vessel lifting lug 7. The sampling vessel 3 is suspended in the storage tank 1 by the sampling vessel body rope 8. The sampling vessel extracts samples from the storage tank from bottom to top, starting from the bottom of the storage tank, filling each sampling space. An electrostatic clip 9 is attached to the end of the sampling vessel body rope 8. During sampling, the electrostatic clip 9 is fixed at the electrostatic grounding point.

[0019] Based on the above technical solution, the three independent sampling spaces 301 inside the sampling pot 3 are formed during the processing of the sampling pot 3, and the partition plate of the sampling space and the pot body of the sampling pot 3 are an integral structure.

[0020] Furthermore, the sampling space is divided into upper and lower layers inside the sampling pot. In order to ensure the strength of the sampling pot and avoid interference between the sampling plugs, several sampling ports are staggered on the side surface of the sampling pot.

[0021] The original sampling jug contained only one independent space. When sampling oil from the storage tank, the jug had to be inserted and withdrawn three times. Now, the sampling jug 3 is divided into three independent sampling spaces. Each time a sample is taken, the jug body is secured to the static ground with the electrostatic clamp 9. The sampling jug 3 is then placed into the storage tank 1 through the sampling port 2. When the jug 3 is at the lower end of the tank's liquid level, the sampling stopper rope corresponding to the lower sampling space is shaken to open the lower sampling stopper, filling the lower sampling space. The jug 3 is then raised from bottom to top. When it reaches the middle of the tank's liquid level, the sampling stopper rope corresponding to the middle sampling space is shaken to open the middle sampling stopper, filling the middle sampling space. Finally, when the liquid level is at the upper end of the tank, the sampling stopper rope corresponding to the upper sampling space is shaken to open the upper sampling stopper, filling the upper sampling space. Finally, the sampling vessel is removed from the container, completing the sampling process in one go.

[0022] It should be noted that after the sampling space is filled, during the process of sampling the hanging pot 3 from bottom to top, since the sampling port is open, there will be a very small amount of oil exchange between the oil in the sampling space and the oil in the storage tank. However, due to the small opening of the sampling port and the different densities of the oil in the storage tank, during the process of extracting samples from bottom to top, the oil sample with higher density in the sampling space is not easy to exchange with the lower density oil in the upper layer during the lifting process, so it does not affect the sampling accuracy.

[0023] It should be noted that the parts of this utility model not described in detail are existing technologies.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] The above-listed embodiments are merely preferred embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A sampling fixture for an atmospheric pressure storage tank, characterized in that: The device includes a sampling vessel, the interior of which is divided into several independent sampling spaces. Each sampling space is equipped with a separate sampling port, and each sampling port is sealed with a separate sampling plug. Each sampling plug is connected to a separate sampling rope. The sampling vessel is suspended inside a storage tank, and several sampling ropes extend outside the storage tank. By pulling the sampling ropes, the sampling plugs inside the storage tank are separated from the corresponding sampling ports.

2. The sampling fixture for an atmospheric pressure storage tank according to claim 1, characterized in that: The sampling vessel is divided into three independent sampling spaces, corresponding to the upper, middle, and lower points of the liquid level in the storage tank for oil samples.

3. A sampling fixture for an atmospheric pressure storage tank according to claim 1 or 2, characterized in that: The sampling space is divided into upper and lower layers inside the sampling vessel, and several sampling ports are staggered on the side surface of the sampling vessel.

4. The sampling fixture for an atmospheric pressure storage tank according to claim 1, characterized in that: The sampling vessel enters the oil in the storage tank through a sampling port located on the top platform of the storage tank during sampling.

5. The sampling fixture for an atmospheric pressure storage tank according to claim 1, characterized in that: A sampling plug hanging ring is fixed on the sampling plug, and the sampling plug rope is connected to the sampling plug hanging ring.

6. The sampling fixture for an atmospheric pressure storage tank according to claim 1, characterized in that: The neck of the sampling vessel is fixed with a sampling vessel lifting lug, and a sampling vessel body rope is connected to the sampling vessel lifting lug. The sampling vessel is suspended in the storage tank by the sampling vessel body rope, and the sample is extracted from the storage tank from bottom to top.

7. The sampling fixture for an atmospheric pressure storage tank according to claim 6, characterized in that: The sampling vessel is equipped with an electrostatic clip at the end of the rope. During sampling, the electrostatic clip is fixed at the electrostatic grounding point.

8. A sampling fixture for an atmospheric pressure storage tank according to claim 1 or 2, characterized in that: The sampling vessel starts from the bottom of the storage tank and takes samples from bottom to top, filling each sampling space.

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