CN219625151U

CN219625151U - Oil on-line monitoring sampling device

Info

Publication number: CN219625151U
Application number: CN202223450569.7U
Authority: CN
Inventors: 邢建文; 李�杰; 梁熙; 时奔奔; 王文; 金天保; 王禹钦; 赵君; 滕延平; 宋兆勇; 吴杰; 王德刚
Original assignee: China Oil and Gas Pipeline Network Corp; National Pipe Network Group North Pipeline Co Ltd
Current assignee: China Oil and Gas Pipeline Network Corp; National Pipe Network Group North Pipeline Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-09-01
Anticipated expiration: 2032-12-22

Abstract

The utility model relates to an oil product on-line monitoring sampling device, which relates to the field of oil product conveying accessories. The beneficial effects of the utility model are as follows: adopt many valves, solve the seepage problem that sampling device valve probably exists, have the function of oil on-line monitoring pressure simultaneously, richened sampling device's function, improved sampling device's security. The non-sampling time can also be started and stopped by the matching combination of the valves, so that the self-detection of the leakage condition of the valves is realized.

Description

Oil on-line monitoring sampling device

Technical Field

The utility model relates to the field of oil conveying accessories, in particular to an oil on-line monitoring and sampling device.

Background

In oil pipeline enterprises, metering handover is the basis for the external profit of enterprise operation, and only accurate metering oil delivery can provide basis for oil delivery trade of enterprises, and metering of oil relates to physical characteristics such as density, temperature and the like of oil, and also relates to quality parameters such as octane number of oil, and sampling detection assay is needed. In each metering station, there is a metering device, and currently, coriolis mass flowmeters are commonly used for finished oil pipelines, and the coriolis mass flowmeters can be used for obtaining mass flow by measuring coriolis forces applied to oil flowing through the pipeline, and can be used for obtaining oil density and speed by calculation. The mass flowmeter needs to be calibrated each year, and the accuracy of the mass flowmeter needs to be verified through online density detection of the oil product in the calibration process or daily oil product conveying. Most of the current sampling tubes have leakage problems when not sampling, which causes certain product loss and safety risks.

Disclosure of Invention

The utility model aims to solve the technical problem of how to monitor whether an online sampling device leaks or not.

The technical scheme for solving the technical problems is as follows: the utility model provides an oil on-line monitoring sampling device, includes first valve, fourth valve, manometer and sampling tube, first valve fourth valve with the sampling tube loops through connecting tube intercommunication, first valve with be equipped with on the connecting tube between the fourth valve the manometer.

The beneficial effects of the utility model are as follows: when the oil is sampled, the first valve and the fourth valve are opened, sampling is performed through the sampling pipe, and the pressure of the sampling point can be observed through the pressure gauge. After the sampling is finished, the first valve and the fourth valve are closed, and the problem of oil leakage can be solved through the arrangement of the two valves. The non-sampling time may be obtained by opening a first valve to observe the pressure gauge to monitor the pressure near the sampling point or as a reference for a numerical comparison of the pressure device. After the oil liquid is filled between the first valve and the fourth valve, the first valve and the fourth valve are closed, and whether leakage exists between the first valve and the fourth valve can be observed according to the pressure gauge.

The utility model adopts multiple valves, solves the possible leakage problem of the valve of the sampling device, has the function of monitoring the pressure of the oil product on line, enriches the functions of the sampling device and improves the safety of the sampling device.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the device further comprises a sealing plug, and the sealing plug is detachably connected with one end, far away from the fourth valve, of the sampling tube.

The beneficial effects of adopting the further scheme are as follows: when the sampling tube is not sampled, the sealing plug is used for sealing the sampling tube, so that the oil product is further prevented from leaking from the sampling tube.

Further, the sealing plug is in threaded connection with the sampling tube.

The beneficial effects of adopting the further scheme are as follows: the sealing plug is easy and convenient to disassemble and assemble, and the sealing effect is good by adopting a threaded structure.

Further, the device also comprises a second valve and a third valve, wherein the first valve, the second valve, the third valve, the fourth valve and the sampling tube are communicated through a connecting pipeline in sequence.

The beneficial effects of adopting the further scheme are as follows: the arrangement of multiple valves can avoid oil leakage caused by leakage of one valve. The non-sampling time can be used for realizing self-detection of the leakage condition of the valve through the pairing combination of needle valves.

Further, the pressure gauge is arranged on the connecting pipeline between the second valve and the third valve.

The beneficial effects of adopting the further scheme are as follows: the four valves are symmetrical relative to the pressure gauge in pairs, and self-checking of the leakage condition of the valves can be realized through the pressure gauge.

Further, the three-way valve further comprises a three-way pipe, wherein a first interface of the three-way pipe is communicated with the second valve through a connecting pipeline, a second interface of the three-way pipe is communicated with the third valve through a connecting pipeline, and a third interface of the three-way pipe is communicated with the pressure gauge.

The beneficial effects of adopting the further scheme are as follows: the tee pipe is arranged to be convenient for accessing the pressure gauge.

Further, the pressure measuring device also comprises a pressure measuring tube, wherein two ends of the pressure measuring tube are respectively communicated with the third interface of the three-way tube and the pressure gauge.

Further, the second valve and the third valve are needle valves.

Further, the first valve and the fourth valve are needle valves.

The beneficial effects of adopting the further scheme are as follows: the needle valve has high opening and closing sensitivity.

Drawings

FIG. 1 is a schematic diagram of an oil product on-line monitoring and sampling device according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a first valve; 2. a second valve; 3. a three-way pipe; 4. a pressure measuring tube; 5. a pressure gauge; 6. a third valve; 7. a fourth valve; 8. a sampling tube; 9. and (5) sealing the plug.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1, this embodiment provides an oil on-line monitoring sampling device, including first valve 1, fourth valve 7, manometer 5 and sampling tube 8, first valve 1 fourth valve 7 with sampling tube 8 loops through connecting tube intercommunication, first valve 1 with be equipped with on the connecting tube between the fourth valve 7 manometer 5.

During oil sampling, the first valve 1 and the fourth valve 7 are opened, sampling is performed through the sampling pipe 8, and the pressure of a sampling point can be observed through the pressure gauge 5. After the sampling is finished, the first valve 1 and the fourth valve 7 are closed, and the problem of oil leakage can be solved by the arrangement of the two valves. The non-sampling time may be obtained by opening the first valve 1 and observing the pressure gauge 5 to monitor the pressure near the sampling point or as a reference for the numerical comparison of the pressure device. After the oil liquid is filled between the first valve and the fourth valve, the first valve and the fourth valve are closed, and whether leakage exists between the first valve and the fourth valve can be observed according to the pressure gauge.

Alternatively, the first valve 1 and the fourth valve 7 may be any type of valve, such as ball valve, needle valve or butterfly valve.

Specifically, one end of the first valve 1 far away from the sampling tube 8 is used for accessing an oil pipeline.

On the basis of the scheme, the novel sampling device further comprises a sealing plug 9, and the sealing plug 9 is detachably connected with one end, away from the fourth valve 7, of the sampling tube 8.

When the sampling is not performed, the sampling tube 8 is plugged by the sealing plug 9, so that oil leakage from the sampling tube 8 is further avoided.

On the basis of any one of the above schemes, the sealing plug 9 is in threaded connection with the sampling tube 8.

The sealing plug 9 is easy and convenient to disassemble and assemble, and the sealing effect is good by adopting a threaded structure.

Alternatively, the sealing plug 9 may be plugged into the end of the sampling tube 8 by an interference fit.

On the basis of any one of the above schemes, the device further comprises a second valve 2 and a third valve 6, wherein the first valve 1, the second valve 2, the third valve 6, the fourth valve 7 and the sampling tube 8 are communicated through connecting pipelines in sequence.

The arrangement of multiple valves can avoid oil leakage caused by leakage of one valve. The non-sampling time can be used for realizing self-detection of the leakage condition of the valve through the pairing combination of needle valves.

Alternatively, the valves may be provided in more, for example, five, six or more than seven.

Optionally, the pressure gauge 5 is disposed on any of the connecting pipes.

On the basis of the above, it is preferable that the pressure gauge 5 is provided on the connecting pipe between the second valve 2 and the third valve 6.

The four valves are symmetrical to each other relative to the pressure gauge 5, and self-checking of the leakage condition of the valves can be realized through the pressure gauge 5.

On the basis of the scheme, the three-way valve further comprises a three-way pipe 3, wherein a first interface of the three-way pipe 3 is communicated with the second valve 2 through a connecting pipeline, a second interface of the three-way pipe 3 is communicated with the third valve 6 through a connecting pipeline, and a third interface of the three-way pipe 3 is communicated with the pressure gauge 5.

The tee 3 is arranged to facilitate access to the pressure gauge 5.

On the basis of the scheme, the pressure measuring device further comprises a pressure measuring tube 4, and two ends of the pressure measuring tube 4 are respectively communicated with the third connector of the three-way tube 3 and the pressure gauge 5.

On the basis of any one of the above schemes, the second valve 2 and the third valve 6 are needle valves.

On the basis of any one of the above schemes, the first valve 1 and the fourth valve 7 are needle valves. The needle valve has the advantage of high opening and closing sensitivity.

In one particular embodiment, the connecting conduit is a steel pipe. Each valve is connected with the connecting pipeline through a sealing thread or a clamping sleeve joint, and the sealing plug 9 adopts the structure of the clamping sleeve joint.

In one specific embodiment, the oil product on-line monitoring sampling device is used in the following manner: during sampling, the first valve 1 and the second valve 2 are sequentially opened, the pressure of the pressure gauge 5 is observed to be normal, the sealing plug 9 is opened, the third valve 6 and the fourth valve 7 are opened, and sampling is performed at the outlet of the sampling tube 8; after the sampling is finished, the first valve 1 is closed, after the oil product does not flow out from the outlet of the sampling tube 8, the second valve 2, the third valve 6 and the fourth valve 7 are closed, the tube orifice of the sampling tube 8 is cleaned, and the sealing plug 9 is arranged, so that good sealing is realized.

When sampling is not needed, only the first valve 1 and the second valve 2 can be opened, the pressure value of the pressure gauge 5 is observed, and pressure monitoring is realized.

At the non-sampling time, all valves can be opened when the ambient temperature is lower, oil is slightly discharged at the sealing plug 9, oil is filled between the second valve 2 and the third valve 6, then the second valve 2 and the third valve 6 are closed, the sealing plug 9 is opened, whether the numerical value displayed by the pressure gauge 5 rises along with the rising of the air temperature or not is observed, and whether obvious leakage exists at the sealing plug 9 or not is judged, so that the sealing performance of the second valve 2 and the third valve 6 is judged, and self-checking is realized. The sealing performance self-check of the first valve 1 and the fourth valve 7 can be realized through pairing and combination in the same way. The scheme is safe, simple and efficient to operate, well solves the problem of oil leakage after sampling, and has rich additional functions.

In this embodiment, when the oil is sampled, the first valve 1 and the second valve 2 are opened to observe the pressure of the sampling point. After the sampling is finished, the problem of oil leakage can be solved through the arrangement of the double valves of the third valve 6 and the fourth valve 7 and the arrangement of the sealing plug 9. The non-sampling time may be obtained by opening the first valve 1 and the second valve 2 and observing the pressure gauge 5 to monitor the pressure near the sampling point or as a reference for the numerical comparison of the pressure device. The non-sampling time can also be started and stopped by the matching combination of the valves, so that the self-detection of the leakage condition of the valves is realized.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The oil product on-line monitoring sampling device is characterized by comprising a first valve (1), a fourth valve (7), a pressure gauge (5) and a sampling tube (8), wherein the first valve (1), the fourth valve (7) and the sampling tube (8) are sequentially communicated through a connecting pipeline, and the pressure gauge (5) is arranged on the connecting pipeline between the first valve (1) and the fourth valve (7); the device further comprises a second valve (2) and a third valve (6), wherein the first valve (1), the second valve (2), the third valve (6), the fourth valve (7) and the sampling tube (8) are communicated through a connecting pipeline in sequence.

2. The oil product on-line monitoring sampling device according to claim 1, further comprising a sealing plug (9), wherein the sealing plug (9) is detachably connected with one end of the sampling tube (8) far away from the fourth valve (7).

3. An oil product on-line monitoring sampling device according to claim 2, characterized in that the sealing plug (9) is in threaded connection with the sampling tube (8).

4. An oil product on-line monitoring sampling device according to claim 1, characterized in that the pressure gauge (5) is arranged on the connecting pipe between the second valve (2) and the third valve (6).

5. The oil product on-line monitoring sampling device according to claim 4, further comprising a three-way pipe (3), wherein a first interface of the three-way pipe (3) is communicated with the second valve (2) through a connecting pipeline, a second interface of the three-way pipe (3) is communicated with the third valve (6) through a connecting pipeline, and a third interface of the three-way pipe (3) is communicated with the pressure gauge (5).

6. The oil product on-line monitoring sampling device according to claim 5, further comprising a pressure measuring tube (4), wherein two ends of the pressure measuring tube (4) are respectively communicated with the third interface of the three-way tube (3) and the pressure gauge (5).

7. The oil product on-line monitoring sampling device according to claim 1, wherein the second valve (2) and the third valve (6) are needle valves.

8. An oil product on-line monitoring sampling device according to any one of claims 1-7, characterized in that the first valve (1) and the fourth valve (7) are needle valves.