Novel movable liquid hydrocarbon sampling and recycling device

Abstract

The utility model relates to the technical field of chemical engineering, in particular to a novel movable liquid hydrocarbon sampling and recycling device. A liquid phase unloading port of the tank car is connected to the pneumatic pump through a pipeline I, and a valve BV1 is arranged on the pipeline I; the pneumatic pump is connected to a valve NV1 at the inlet of the sampling steel cylinder through a pipeline II; a valve NV2 at the outlet of the sampling steel cylinder is connected to the gas phase unloading port through a pipeline III, and a valve BV2 is further arranged on the pipeline III; the nitrogen cylinder is connected to the pneumatic pump through a first branch of a fifth pipeline and used for pressurizing the pneumatic pump, a valve BV3 is arranged on the first branch, the nitrogen cylinder is connected to the fourth pipeline through a second branch of the fifth pipeline, and a valve BV4 is arranged on the second branch. The liquid hydrocarbon discharged in the sampling process is safely recovered into the tank car, so that the liquid hydrocarbon is prevented from being directly discharged into the atmosphere, the combustion or explosion risk caused by static electricity or sparks is reduced, and the safety of the working environment is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, specifically to a novel mobile liquid hydrocarbon sampling and recovery device. Background Technology

[0002] In industrial sectors, particularly in oil refining and chemical plants, raw materials are typically transported by large tank trucks to the loading / unloading area, where a series of safety measures must be implemented before unloading. To ensure the quality of the raw materials, samples of the contents of the tanker must be taken and tested before unloading; unloading can only proceed if the test results are satisfactory.

[0003] For flammable and explosive substances like liquid hydrocarbons, operators must take strict protective measures during sampling and collect the samples into sampling cylinders. However, current liquid hydrocarbon unloading sampling procedures have the following limitations:

[0004] The process of replacing the sampling cylinder is rather crude. It usually involves using the medium inside the tank truck, which is then directly discharged into the atmosphere after being sampled through the cylinder.

[0005] Liquid hydrocarbons are chemicals, and their direct emission into the atmosphere not only pollutes the environment, but also may cause combustion or explosion accidents if they encounter unexpected situations such as static electricity or sparks during the sampling process. This poses a serious threat to the safety of operators and also brings huge safety hazards to long-term operating equipment. Utility Model Content

[0006] This invention provides a novel mobile liquid hydrocarbon sampling and recovery device, which aims to solve the safety hazards and environmental pollution problems existing in the liquid hydrocarbon sampling process in the prior art.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A novel mobile liquid hydrocarbon sampling and recovery device includes a tank truck loaded with liquid hydrocarbons. The liquid phase unloading port of the tank truck is connected to a pneumatic pump via a pipeline, and a valve BV1 is installed on the pipeline.

[0009] The pneumatic pump is connected to valve NV1 at the inlet of the sampling cylinder via pipe 2;

[0010] The outlet valve NV2 of the sampling cylinder is connected to the gas phase unloading port through pipeline 3, and valve BV2 is also installed on pipeline 3;

[0011] Pipeline 4 connects pipes 2 and 3, and valve BV5 is installed on pipe 4;

[0012] The nitrogen cylinder is connected to the pneumatic pump via branch line one of pipeline five to pressurize the pneumatic pump. A valve BV3 is installed on branch line one. The cylinder is connected to pipeline four via branch line two of pipeline five. A valve BV4 is installed on branch line two.

[0013] Furthermore, a check valve is installed at the inlet section of the second branch to prevent backflow of the medium.

[0014] Furthermore, a pressure gauge is installed on pipe 2 to monitor the pressure of the medium inside the pipeline.

[0015] Furthermore, it also includes a moving component for loading pipelines and sampling cylinders; the moving component includes load-bearing casters, a base plate, a main cylinder support, and a secondary cylinder support, wherein:

[0016] The heavy-duty casters are installed under the base plate;

[0017] The main support for the gas cylinder is a circular structure used to fix the lower part of the sampling gas cylinder;

[0018] The auxiliary support for the gas cylinder is a frame structure used to fix the upper part of the sampling gas cylinder;

[0019] The work box bracket is welded to one side of the base plate, and a cross brace is designed in the middle part for installing the pneumatic pump;

[0020] The work box is installed on the upper surface of the work box bracket and is connected to the pneumatic pump through an air pipe, and at the same time connected to the nitrogen cylinder through a hose.

[0021] Furthermore, the design includes four heavy-duty casters, evenly distributed at the four corners of the lower end face of the base plate, and equipped with a braking mechanism.

[0022] Furthermore, the main support for the gas cylinder is located on the upper left rear side of the base plate and is integrated with the base plate.

[0023] Furthermore, the cylinder auxiliary support has a rectangular vertical support and a circular horizontal support, forming an integral part of the base plate.

[0024] The beneficial effects achieved by this utility model are as follows:

[0025] This utility model discloses a novel mobile liquid hydrocarbon sampling and recovery device. By safely recovering the liquid hydrocarbons discharged during the sampling process into a tank truck, it avoids the direct discharge of liquid hydrocarbons into the atmosphere, reduces the risk of combustion or explosion caused by static electricity or sparks, and greatly improves the safety of the working environment.

[0026] This utility model discloses a novel mobile liquid hydrocarbon sampling and recovery device, which uses a pneumatic pump pressurization system to ensure stable medium pressure during sampling and further reduce operational risks.

[0027] This utility model discloses a novel mobile liquid hydrocarbon sampling and recovery device. The device has a compact design and is equipped with heavy-duty casters and a braking mechanism, which allows the entire device to be easily moved and positioned in large loading and unloading areas, improving the flexibility and convenience of operation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 is a schematic diagram of the overall structure of a novel mobile liquid hydrocarbon sampling and recovery device;

[0030] Figure 2 is a perspective view of the moving parts of a novel mobile liquid hydrocarbon sampling and recovery device;

[0031] Figure 3 is a partial perspective view of the moving parts of a novel mobile liquid hydrocarbon sampling and recovery device;

[0032] In the diagram, L1 is pipe 1; L2 is pipe 2; L3 is pipe 3; L4 is pipe 4; L5 is pipe 5; L51 is branch 1; L52 is branch 2.

[0033] 1. Heavy-duty casters; 2. Base plate; 3. Main support for gas cylinder; 4. Secondary support for gas cylinder; 5. Nitrogen gas cylinder; 6. Work box support; 7. Pneumatic pump; 8. Work box.

[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this utility model 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 is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. 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 by this utility model.

[0038] Figure 1 shows a novel mobile liquid hydrocarbon sampling and recovery device, comprising a tank truck loaded with liquid hydrocarbons. The liquid phase unloading port of the tank truck is connected to a pneumatic pump 7 via pipe L1, and a valve BV1 is installed on pipe L1. The pneumatic pump 7 is connected to a valve NV1 at the inlet of a sampling cylinder via pipe L2. The valve NV2 at the outlet of the sampling cylinder is connected to a gas phase unloading port via pipe L3, and a valve BV2 is also installed on pipe L3. Pipeline L4 connects pipes L2 and L3, and a valve BV5 is installed on pipe L4. A nitrogen cylinder is connected to the pneumatic pump 7 via a branch L51 of pipe L5 to pressurize the pneumatic pump 7. A valve BV3 is installed on branch L51, which is connected to pipe L4 via a branch L52 of pipe L5. A valve BV4 is installed on the pipeline. A check valve is installed at the inlet section of branch line L52 to prevent backflow of the medium. A pressure gauge is installed on pipeline L2 to monitor the pressure of the medium in the pipeline.

[0039] As shown in Figures 2 and 3, the system also includes a moving component for loading pipelines and sampling cylinders. This moving component comprises heavy-duty casters 1, a base plate 2, a main cylinder support 3, and a secondary cylinder support 4. The heavy-duty casters 1 are located under the base plate 2. The main cylinder support 3 is a ring-shaped structure used to fix the lower part of the sampling cylinder. The secondary cylinder support 4 is a frame structure used to fix the upper part of the sampling cylinder. The working box 8 support 6 is welded to one side of the base plate 2, with a cross brace in the middle for mounting the pneumatic pump 7. The working box 8 is mounted on the upper surface of the working box 8 support 6 and connected to the pneumatic pump 7 via an air pipe, and also connected to the nitrogen cylinder 5 via a flexible hose. Four heavy-duty casters 1 are evenly distributed at the four corners of the lower surface of the base plate 2 and are equipped with a braking mechanism. The main cylinder support 3 is located on the left rear side of the upper surface of the base plate 2 and is integral with the base plate 2. The cylinder auxiliary support 4 has a rectangular vertical support and a circular horizontal support, which are integrated with the base plate 2.

[0040] Example 1:

[0041] The moving parts include:

[0042] Heavy-duty casters 1: There are four casters, evenly distributed at the four corners of the lower end face of the base plate 2, and they are equipped with a braking mechanism, which allows the device to move freely and be fixed in position.

[0043] Base plate 2: It has a flat rectangular structure and serves as the foundation platform for the entire device.

[0044] The main support for the gas cylinder 3 is a circular structure located on the upper left rear side of the base plate 2 and is integrated with the base plate 2. It is used to fix the lower part of the sampling gas cylinder.

[0045] Cylinder auxiliary support 4: It is a frame structure with a rectangular vertical support and a circular horizontal support. It is integrated with the base plate 2 and is used to fix the upper part of the sampling cylinder.

[0046] Work box 8 and bracket 6: welded to one side of the base plate 2, with a cross brace designed in the middle for mounting the pneumatic pump 7.

[0047] Work box 8: Used to store pipes, including pipe 1 L1, pipe 2 L2, pipe 3 L3, pipe 4 L4, pipe 5 L5, branch 1 L51 and branch 2 L52. It is installed on the upper end of the bracket 6 of work box 8 and connected to the pneumatic pump 7 through an air pipe, and at the same time connected to the nitrogen cylinder 5 through a hose.

[0048] Working components include:

[0049] Tanker truck liquid phase unloading port N1: Connected to pneumatic pump 7 via pipe L1, with valve BV1 installed on pipe L1.

[0050] Pneumatic pump 7: Connected to the inlet of the sampling cylinder via pipe L2, and valve NV1 is installed on pipe L2.

[0051] Sampling cylinder: Its outlet is connected to the gas phase unloading port N2 via pipeline 3L3. Pipeline 3L3 is equipped with valves NV2 and BV2.

[0052] Pipeline 4 L4: Connects Pipeline 2 L2 and Pipeline 3 L3. Pipeline 4 L4 is equipped with valve BV5.

[0053] Nitrogen cylinder: It is connected to the pneumatic pump 7 via branch line L51 of pipeline 5 L5 to pressurize the pneumatic pump 7. Branch line L51 is equipped with valve BV3; branch line L52 is connected to pipeline 4 L4. Branch line L52 is equipped with valve BV4.

[0054] Check valve: installed at the inlet section of branch line L52 to prevent backflow of the medium.

[0055] Pressure gauge: Installed on pipeline L2, used to monitor the pressure of the medium in the pipeline.

[0056] Preparation:

[0057] Connect the quick connector and sampling tube to the liquid phase unloading port N1 and the gas phase unloading port N2 of the tank truck, and confirm that the connection is secure.

[0058] Open the gas-liquid phase valve of the tank truck to ensure that the gas-liquid phase passage is unobstructed.

[0059] Replacement sampling of residual media in the gas cylinder:

[0060] 1. Open valves BV1, NV1, NV2, and BV2 in sequence, then open valve BV3 and start the pneumatic pump 7 to pressurize the medium in the pipeline.

[0061] 2. Confirm that the medium in the pipeline is circulating, so that the residual medium in the sampling cylinder is effectively replaced. Sweep the residual medium into the tank truck. Since the residual medium is very small, it will not contaminate the medium in the existing tank truck.

[0062] 3. After the replacement is successful, close valve NV2.

[0063] Sampling operation:

[0064] 1. Open valve NV1 to start sampling until the sampling cylinder is full of liquid medium.

[0065] 2. Close valves NV1 and BV3, stop the pneumatic pump 7, and complete the sampling.

[0066] Recycled sampled medium at the inlet section of the gas cylinder:

[0067] 1. Open valve BV4 and use high-pressure nitrogen to blow the medium from the inlet section of the sampling cylinder into the liquid phase unloading port N1 of the tank truck in the opposite direction.

[0068] 2. Close the liquid phase unloading port valve of the tank truck and BV1 to ensure complete recovery of the medium in the inlet section.

[0069] Recover and sample the medium at the outlet section of the gas cylinder:

[0070] 1. Open valve BV5 and use high-pressure nitrogen to blow the medium from the outlet section of the sampling cylinder into the gas phase unloading port N2 of the tank truck.

[0071] 2. Close the tank truck vapor unloading port and BV2 to ensure complete recovery of the medium at the outlet section.

[0072] End operation:

[0073] Finally, disconnect the quick connector and hose, remove the sampling cylinder, and the sampling operation is complete.

[0074] Example 2: Adding safety measures

[0075] Based on Example 1, the following safety measures were further added:

[0076] Static grounding wire: An electrostatic grounding wire is added to the base plate 2 of the device to ensure that the entire device is always grounded during operation, preventing static electricity accumulation from causing fire or explosion.

[0077] Gas detector: Install a gas detector near work box 8 to monitor the concentration of combustible gas in the surrounding environment in real time. Once the concentration exceeds the safety threshold, an alarm will be issued immediately and the relevant valves will be automatically shut off to ensure operational safety.

[0078] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A novel mobile liquid hydrocarbon sampling and recovery device, comprising a tanker truck loaded with liquid hydrocarbons, characterized in that: The liquid phase unloading port of the tank truck is connected to the pneumatic pump (7) through pipe 1 (L1), and valve BV1 is installed on pipe 1 (L1); The pneumatic pump (7) is connected to valve NV1 at the inlet of the sampling cylinder via pipe 2 (L2); The valve NV2 at the outlet of the sampling cylinder is connected to the gas phase unloading port through pipeline three (L3), and valve BV2 is also installed on pipeline three (L3); Pipeline 4 (L4) connects pipe 2 (L2) and pipe 3 (L3), and valve BV5 is installed on pipe 4 (L4); The nitrogen cylinder is connected to the pneumatic pump (7) via branch line 1 (L51) of pipeline 5 (L5) to pressurize the pneumatic pump (7). A valve BV3 is installed on branch line 1 (L51). The cylinder is connected to pipeline 4 (L4) via branch line 2 (L52) of pipeline 5 (L5). A valve BV4 is installed on branch line 2 (L52).

2. The novel mobile liquid hydrocarbon sampling and recovery device according to claim 1, characterized in that: The inlet section of the second branch (L52) is equipped with a check valve to prevent backflow of the medium.

3. The novel mobile liquid hydrocarbon sampling and recovery device according to claim 1, characterized in that: A pressure gauge is installed on pipe 2 (L2) to monitor the pressure of the medium in the pipeline.

4. The novel mobile liquid hydrocarbon sampling and recovery device according to claim 1, characterized in that: It also includes a moving component for loading pipelines and sampling cylinders; the moving component includes a load-bearing caster wheel (1), a base plate (2), a main cylinder support (3), and a secondary cylinder support (4), wherein: The load-bearing casters (1) are installed under the base plate (2); The main support (3) of the gas cylinder is a ring-shaped structure used to fix the lower part of the sampling gas cylinder; The auxiliary support for the gas cylinder (4) is a frame structure used to fix the upper part of the sampling gas cylinder; The work box (8) bracket (6) is welded to one side of the base plate (2), and a cross brace is designed in the middle part for installing the pneumatic pump (7); The work box (8) is installed on the upper end of the work box (8) bracket (6) and connected to the pneumatic pump (7) through an air pipe, and connected to the nitrogen cylinder (5) through a hose.

5. A novel mobile liquid hydrocarbon sampling and recovery device according to claim 4, characterized in that: The heavy-duty casters (1) are designed to have four casters, which are evenly arranged at the four corners of the lower end face of the base plate (2) and are equipped with a braking mechanism.

6. A novel mobile liquid hydrocarbon sampling and recovery device according to claim 4, characterized in that: The main support (3) of the gas cylinder is located on the left rear side of the upper end face of the base plate (2) and is integrated with the base plate (2).

7. A novel mobile liquid hydrocarbon sampling and recovery device according to claim 4, characterized in that: The cylinder auxiliary support (4) has a rectangular vertical support and a circular horizontal support, which are integrated with the base plate (2).

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