Manifold table sampling device

By designing the pipe table sampling device, using the shutdown valve and pressure monitoring device, the problem that traditional sampling devices cannot observe pressure and control gas pressure in real time is solved, and a high-precision and high-efficiency sampling process is achieved.

CN222836683UActive Publication Date: 2025-05-06CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202421943754.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-05-06
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

Traditional gas field sampling devices cannot observe the pressure during the sampling process in real time, resulting in large sampling errors, low working efficiency, and the inability to accurately control the gas pressure into the sampling bottle.

Method used

A pipe tray sampling device is designed, including an output pipeline, a sampling pipeline and a monitoring pipeline, and controls the gas flow through the first stop valve, monitors the gas pressure in real time using the pressure monitoring device, and controls the gas into the sampling bottle through the second stop valve.

Benefits of technology

Real-time observation of pressure values ​​during the sampling process is achieved, the accuracy of sampling work is improved, sampling errors and repeated operations are reduced, and working efficiency is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of gas field sampling, in particular to a manifold table sampling device which comprises an output pipeline, a sampling pipeline and a monitoring pipeline which are communicated with one another, a manifold table is arranged on the output pipeline, a first stop valve is arranged on the output pipeline, and a second stop valve is arranged on the sampling pipeline. The first stop valve is configured to be used for opening and closing the output pipeline, one end of the monitoring pipeline is provided with a pressure monitoring device, the other end of the monitoring pipeline is communicated with the output pipeline and the sampling pipeline, the sampling pipeline is provided with a second stop valve, and the second stop valve is communicated with the pressure monitoring device. An operator can monitor the pressure value of gas through the pressure monitoring device arranged on the monitoring pipeline, and when the pressure value reaches an expected value, the gas is controlled to flow out of the sampling pipeline through the second stop valve on the sampling pipeline, so that sampling is realized; and in the sampling process, an operator can observe the pressure value change in the sampling process in real time through the pressure monitoring device, so that the accuracy of sampling work is improved.
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Description

Technical Field

[0001] The utility model relates to the field of gas field sampling, in particular to a manifold sampling device. Background Art

[0002] Traditional gas field sampling is mostly done by removing the pressure gauge before sampling, and it is impossible to observe the sampling on site, and the sampling bottle does not have a pressure observation device. This means that the operation is blind, and the pressure during sampling cannot be observed, and the operator cannot judge the pressure value in the sampling bottle. As a result, the operator cannot make an intuitive judgment during the operation, resulting in large sampling errors, invalid sampling operations, and the need for staff to repeatedly sample. In addition, in existing devices, a pressure gauge is installed on the sampling pipeline, but the gas pressure flowing into the sampling bottle cannot be accurately controlled, resulting in inaccurate sampling and invalid sampling operations. Utility Model Content

[0003] The utility model aims to overcome the problem in the background technology that the operator cannot observe the sampling pressure in real time during sampling, which leads to repeated sampling and reduced work efficiency, and provides a manifold sampling device.

[0004] In a first aspect, the utility model provides a manifold sampling device, the device comprising an output pipeline, a sampling pipeline and a monitoring pipeline that are interconnected;

[0005] Output pipeline: a manifold is provided on the output pipeline, a first stop valve is provided on the output pipeline, and the first stop valve is configured to open and close the output pipeline;

[0006] Monitoring pipeline: a pressure monitoring device is provided at one end of the monitoring pipeline, and the other end of the monitoring pipeline is respectively connected to the output pipeline and the sampling pipeline;

[0007] Sampling pipeline: The sampling pipeline is provided with a second stop valve.

[0008] The utility model discloses a pipe manifold sampling device, on which sampling pipelines for sampling are respectively provided, and the sampling pipelines are respectively connected with a monitoring pipeline and an output pipeline. When an operator needs to take a sample, the pressure is first controlled by a first stop valve, and when the gas flows to the monitoring pipeline, the operator can monitor the pressure value of the gas by a pressure monitoring device arranged on the monitoring pipeline, and when the pressure value reaches the expected value, the gas is controlled to flow out of the sampling pipeline by a second stop valve on the sampling pipeline to realize sampling, and during the sampling process, the operator can observe the pressure value change in the sampling process in real time by the pressure monitoring device, thereby improving the accuracy of the sampling work.

[0009] Preferably, the device comprises a three-way connector, which is a hollow connector and is respectively connected to the output pipeline, the sampling pipeline and the monitoring pipeline.

[0010] The output pipeline, the sampling pipeline and the monitoring pipeline are interconnected through a three-way joint, which improves the stability of the connection of the device and ensures that the gases between the pipelines can flow to each other.

[0011] Preferably, a third stop valve is provided on the monitoring pipeline, and the third stop valve is arranged between the three-way connector and the pressure monitoring device.

[0012] By providing the third stop valve, the safety of the entire device can be improved, and it is convenient to close and replace the pipeline in time after it is damaged.

[0013] Preferably, the first stop valve, the second stop valve and the third stop valve are all provided with a pressure relief plug.

[0014] This arrangement can improve the safety of each pipeline through each pressure relief plug, and when the pressure is too high, the pressure can be relieved through the pressure relief plug.

[0015] Preferably, the first stop valve, the second stop valve and the third stop valve are all high-pressure resistant alloy structural parts.

[0016] Such an arrangement can improve the pressure resistance of each stop valve and increase the service life of each stop valve, while improving the safety of the pipeline.

[0017] Preferably, both the sampling pipeline and the monitoring pipeline are provided with right-angle elbows.

[0018] Each pipeline can be fixed by a right-angle elbow.

[0019] Preferably, the pressure monitoring device body is a pressure gauge.

[0020] The pressure gauge is cheap, and such an arrangement can reduce the cost of the device and facilitate replacement.

[0021] Preferably, the right-angle elbow body is a high-pressure resistant alloy part.

[0022] By setting the right-angle elbow as a high-pressure resistant alloy part, the stability and safety of the device during gas transmission are guaranteed.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The utility model is a manifold sampling device, on which sampling pipelines for sampling are respectively provided, and the sampling pipelines are respectively connected to monitoring pipelines and output pipelines. When the operator needs to take samples, the pressure is first controlled by a first stop valve. When the gas flows to the monitoring pipeline, the operator can monitor the pressure value of the gas through a pressure monitoring device arranged on the monitoring pipeline. When the pressure value reaches the expected value, the gas is controlled to flow out of the sampling pipeline through a second stop valve on the sampling pipeline to achieve sampling. In the sampling process, the operator can observe the pressure value changes in the sampling process in real time through the pressure monitoring device, thereby improving the accuracy of the sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a connection diagram of the manifold sampling device of this application;

[0026] Figure 2 This is a schematic diagram of the connection between the output pipeline and the monitoring pipeline of this application;

[0027] Figure 3 This is a schematic diagram of the connection between the output pipeline and the sampling pipeline of this application.

[0028] Markings in the figure: 1- output pipeline; 11- manifold; 12- first stop valve; 2- sampling pipeline; 21- second stop valve; 3- monitoring pipeline; 31- pressure monitoring device; 32- third stop valve; 4- three-way connector; 5- right-angle elbow. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0030] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0031] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0032] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0033] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0034] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0035] Example 1

[0036] like Figure 1-3A manifold sampling device is shown, which includes a sampling pipeline 2, and one end of the sampling pipeline 2 is provided with a three-way joint 4, so that the sampling pipeline 2 can be connected to the output pipeline 1 and the monitoring pipeline 3 respectively through the three-way joint 4, and one end of the output pipeline 1 is connected to the manifold 11, and the output pipeline 1 is provided with a first stop valve 12 for controlling the opening and closing of the pipeline, and the first stop valve 12 is located between the manifold 11 and the three-way joint 4 to ensure that when no sampling is performed, the gas in the pipeline will not leak into the other pipelines, and the monitoring pipeline 3 is provided with a pressure monitoring device 31 for monitoring the gas pressure in the pipeline. When the first stop valve 12 is opened, the pressure monitoring device 31 is used to monitor the gas pressure in the pipeline. After the valve 12 is opened, the output pipeline 1 is connected to the monitoring pipeline 3, and the gas in the output pipeline 1 is transported to the monitoring pipeline 3, and the pressure of the gas is monitored by the pressure monitoring device 31, so that the operator can know the gas pressure conditions on site. Furthermore, a second stop valve 21 is provided on the sampling pipeline 2. After knowing the gas pressure conditions on site, the second stop valve 21 is opened, so that the gas meeting the sampling pressure can flow into the sampling bottle through the sampling pipeline 2 for sampling, thereby ensuring the accuracy of the sampling gas pressure and the effectiveness of the sampling, while avoiding large sampling errors that lead to invalid sampling and make the operator do repetitive work.

[0037] In one or several embodiments, the sampling device of the manifold 11 includes a three-way joint 4, and the three-way structure as a whole is a hollow structural component. The three-way joint 4 is respectively connected to the sampling pipeline 2, the output pipeline 1 and the monitoring pipeline 3. Since the three-way joint 4 is a hollow structural component, the pipelines connected to the three-way joint 4 can be interconnected, which is convenient for gas transmission.

[0038] In an optional embodiment, a third stop valve 32 is provided on the monitoring pipeline 3, and the third stop valve 32 is arranged between the pressure monitoring device 31 and the three-way connector 4. The third stop valve 32 can improve the safety of the monitoring pipeline 3. When the monitoring pipeline 3 is damaged, the gas delivery can be interrupted by the third stop valve 32, thereby protecting the safety of subsequent maintenance personnel. Figure 1-2 shown.

[0039] In an optional embodiment, the first stop valve 12, the second stop valve 21 and the third stop valve 32 are all provided with a pressure relief plug, which can improve the safety of the entire pipeline. When the gas pressure is too high, it can be relieved through the pressure relief plug to prevent accidents caused by excessive pressure.

[0040] Furthermore, the first stop valve 12, the second stop valve 21 and the third stop valve 32 are all high-pressure resistant alloy structural parts (made of stainless steel, with a specific material grade of EE-NL). By setting each stop valve as a high-pressure resistant alloy structural part, the service life of the stop valve is increased and the maintenance cost is reduced;

[0041] Optionally, the stop valve in the present application is a throttling stop valve, which can withstand a pressure of 70 MPa.

[0042] In an optional embodiment, a right-angle elbow 5 (made of A333, DN20PN70) is provided on the sampling pipeline 2 and the monitoring pipeline 3 to avoid interference between the pipelines. Figure 1 shown.

[0043] In an optional implementation manner, the main body of the pressure monitoring device 31 is a pressure gauge, which is cheap. Such a configuration can reduce the cost of the device and facilitate replacement.

[0044] In an optional embodiment, the body of the right-angle elbow 5 is a high-pressure resistant alloy part. By setting the right-angle elbow 5 as a high-pressure resistant alloy part, the stability and safety of the device during gas transmission are guaranteed.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manifold sampling device, characterized in that: The device comprises an output pipeline (1), a sampling pipeline (2) and a monitoring pipeline (3) which are interconnected; Output pipeline (1): a manifold (11) is provided on the output pipeline (1), and a first stop valve (12) is provided on the output pipeline (1), wherein the first stop valve (12) is configured to open and close the output pipeline (1); Monitoring pipeline (3): a pressure monitoring device (31) is provided at one end of the monitoring pipeline (3), and the other end of the monitoring pipeline (3) is respectively connected to the output pipeline (1) and the sampling pipeline (2); Sampling pipeline (2): The sampling pipeline (2) is provided with a second stop valve (21).

2. A manifold sampling device according to claim 1, characterized in that: The device comprises a three-way connector (4), which is a hollow connector. The three-way connector (4) is respectively connected to the output pipeline (1), the sampling pipeline (2) and the monitoring pipeline (3).

3. A manifold sampling device according to claim 2, characterized in that: The monitoring pipeline (3) is provided with a third stop valve (32), and the third stop valve (32) is arranged between the three-way connector (4) and the pressure monitoring device (31).

4. A manifold sampling device according to claim 3, characterized in that: The first stop valve (12), the second stop valve (21) and the third stop valve (32) are all provided with pressure relief plugs.

5. A manifold sampling device according to claim 4, characterized in that: The first stop valve (12), the second stop valve (21) and the third stop valve (32) are all high-pressure resistant alloy structural parts.

6. A manifold sampling device according to any one of claims 1 to 5, characterized in that: The sampling pipeline (2) and the monitoring pipeline (3) are both provided with right-angle elbows (5).

7. A manifold sampling device according to claim 6, characterized in that: The main body of the pressure monitoring device (31) is a pressure gauge.

8. A manifold sampling device according to claim 6, characterized in that: The right-angle elbow (5) body is a high-pressure-resistant alloy part.