High-pressure sealing petrochemical engineering pipeline flowmeter

Abstract

The utility model provides a high-pressure sealing petrochemical pipeline flowmeter, relates to the technical field of petrochemical pipeline flow metering auxiliary devices, and aims to solve the problems that the sealing performance at the joint position of a pipeline flowmeter in an existing petrochemical pipeline is poor, and the accuracy of actual monitoring data is affected. A left branch pipe and a right branch pipe are symmetrically arranged on the pipeline, the left branch pipe and the right branch pipe are consistent in structure, a metering instrument is arranged between the left branch pipe and the right branch pipe, a base is fixedly connected to the pipeline, a bottom plate is installed at the bottom of the metering instrument, and the bottom plate and the base are connected through bolts. A flange plate is fixedly connected to the left branch pipe, a connector pipe is fixedly connected to the upper portion of the flange plate, and a stop valve is arranged on the connector pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical pipeline flow metering auxiliary devices, in particular to a high-pressure sealed petrochemical pipeline flow meter. Background Art

[0002] During the oil and gas exploration and production process in oil fields, it is often necessary to continuously collect the flow changes of water, gas and oil in the well in real time. As various oil fields develop from mechanization to informatization of oil production, especially with the depletion of oil resources around the world and the demand to improve the recovery rate of proven oil reserves, there are higher requirements for the collection volume and accuracy of downhole data.

[0003] The sealing performance of the joints of existing pipeline flowmeters in petrochemical pipelines is poor, which affects the accuracy of actual monitoring data. Therefore, it is particularly important to design a high-pressure sealed petrochemical pipeline flowmeter to solve the above technical problems. Utility Model Content

[0004] The utility model aims to solve the problem that the sealing performance of the joints of the existing pipeline flowmeters in petrochemical pipelines is poor, which affects the accuracy of the actual monitoring data, and proposes a high-pressure sealing petrochemical pipeline flowmeter.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a high-pressure sealed petrochemical pipeline flowmeter, comprising a pipeline, on which a left branch and a right branch are symmetrically arranged, the structures of the left branch and the right branch being consistent, a measuring instrument being arranged between the left branch and the right branch, a base being fixedly connected to the pipeline, a bottom plate being installed at the bottom of the measuring instrument, the bottom plate and the base being connected by bolts, a flange being fixedly connected to the left branch, an interface pipe being fixedly connected above the flange, and a stop valve being arranged on the interface pipe.

[0006] Preferably, an inlet is installed at the left end of the measuring instrument, and an outlet is installed at the right end of the measuring instrument. The inlet is connected to the interface pipe on the left branch through a pipeline and the joint is sealed. The outlet is connected to the interface pipe on the right branch through a pipeline and the joint is sealed.

[0007] Preferably, a sealing ring is installed in the flange.

[0008] Preferably, a cover is provided on the pipeline at the abutment position between the left branch pipe and the right branch pipe and the pipeline, the cover is a hollow structure, and an oil filling port is provided on the side wall of the cover.

[0009] Preferably, the measuring instrument is a high-pressure flow meter, and a display screen is provided on the measuring instrument.

[0010] Compared with the prior art, the advantages and positive effects of the present invention are:

[0011] 1. In the present invention, during use, the sealing work at the abutment position is completed by injecting oil into the sealing cover. Compared with conventional measuring instruments with poor sealing performance, the technical solution adopted by the present invention can achieve relatively accurate monitoring of the internal flow of petrochemical pipelines. The overall structure is compact and can be directly installed on the pipeline, optimizing the existing working space and facilitating installation and maintenance. It solves the problem that the sealing of the joint position of the pipeline flow meter in the existing petrochemical pipeline affects the accuracy of the actual monitoring data.

[0012] 2. In the present invention, during use, since the metering instrument adopts a high-pressure resistant flow metering agent, the monitoring accuracy of the interior of the petrochemical pipeline is greatly improved. A sealing structure is provided at the abutment position between the branch pipes on both sides and the pipeline, and the sealing work at the abutment position is completed by injecting oil into the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall diagram of the utility model's high-pressure sealed petrochemical pipeline flowmeter;

[0014] Figure 2 This is a side view of a local structure of a high-pressure sealed petrochemical pipeline flowmeter of the utility model;

[0015] Legend: 1. Pipeline; 2. Left branch; 201. Flange; 202. Interface pipe; 203. Stop valve; 204. Sealing ring; 3. Right branch; 4. Measuring instrument; 401. Base; 402. Bottom plate; 403. Bolt; 404. Inlet; 405. Outlet; 406. Display screen; 407. Pipeline; 5. Cover; 501. Oil filling port. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] The utility model provides a high-pressure sealed petrochemical pipeline flowmeter, comprising a pipeline 1, wherein a left branch pipe 2 and a right branch pipe 3 are symmetrically arranged on the pipeline 1, wherein the structures of the left branch pipe 2 and the right branch pipe 3 are consistent, wherein a measuring instrument 4 is arranged between the left branch pipe 2 and the right branch pipe 3, wherein a base 401 is fixedly connected to the pipeline 1, a bottom plate 402 is installed at the bottom of the measuring instrument 4, wherein the bottom plate 402 is connected to the base 401 by bolts 403, and a flange 201 is fixedly connected to the left branch pipe 2. , an interface pipe 202 is fixedly connected to the top of the flange 201, and a stop valve 203 is provided on the interface pipe 202. An inlet 404 is installed at the left end of the measuring instrument 4, and an outlet 405 is installed at the right end of the measuring instrument 4. The inlet 404 is connected to the interface pipe 202 on the left branch pipe 2 through a pipeline 407 and the joint is sealed. The outlet 405 is connected to the interface pipe 202 on the right branch pipe 3 through a pipeline 407 and the joint is sealed to ensure relative sealing at the joint;

[0019] When the high-pressure sealing petrochemical pipeline flowmeter is actually used and it is necessary to monitor and measure the flow inside the pipeline 1, the staff manually drives to open the stop valve 203 at the position of the left branch pipe 2 and the right branch pipe 3, so that the liquid inside the pipeline 1 flows to the inlet 404 position of the measuring instrument 4 through the left branch pipe 2, the interface pipe 202 and the pipeline 407, and finally flows out from the outlet 405 to the relevant component position of the right branch pipe 3, and then returns to the interior of the pipeline 1. After a period of circulation, the staff observes the value on the display screen 406 in real time. Before opening the stop valve 203 on the left branch pipe 2 and the right branch pipe 3, oil is injected into the oil filling port 501 at the position of the cover 5 on the left and right branches 3 on both sides to perform secondary sealing on the joints of the left branch pipe 2 and the right branch pipe 3, so that the sealing of the abutting positions of the left branch pipe 2 and the right branch 3 with the pipeline 1 is in a relatively sealed state, thereby improving the accuracy of the monitoring data of the measuring instrument 4. The average value of the measurements is taken to avoid affecting the measurement accuracy due to local leakage. After the measurement is completed, the stop valves 203 on the left and right branches 3 are closed in turn. By installing the left branch 2 and the right branch 3 structures on the pipeline 1, and then installing the measuring instrument 4 on the pipeline 1 between the connected branches, and then installing the stop valve 203 and the pipeline 407 structure on the branches on both sides, the liquid in the pipeline 1 can flow to the measuring instrument 4. Since the measuring instrument 4 adopts a high-pressure resistant flow metering agent, the monitoring accuracy of the inside of the petrochemical pipeline 1 is greatly improved. Then, a sealing cover 5 structure is set at the abutment position between the branches on both sides and the pipeline 1. The sealing work at the abutment position is completed by injecting oil into the sealing cover 5. Compared with the conventional measuring instrument 4 with poor sealing performance, the technical solution adopted by the utility model can achieve relatively accurate monitoring of the internal flow of the petrochemical pipeline 1. The overall structure is compact and can be directly installed on the pipeline 1, optimizing the existing working space and facilitating installation and maintenance.

[0020] like Figure 1-2 As shown, a sealing ring 204 is installed in the flange 201, and a cover 5 is provided on the pipeline 1 at the abutment position between the left branch pipe 2 and the right branch pipe 3 and the pipeline 1. The cover 5 is a hollow structure, and an oil filling port 501 is provided on the side wall of the cover 5. The measuring instrument 4 is a high-pressure flow meter, and a display screen 406 is provided on the measuring instrument 4.

[0021] The effect achieved by the entire embodiment 1 is that, during use, since the metering instrument 4 adopts a high-pressure resistant flow metering agent, the monitoring accuracy of the interior of the petrochemical pipeline 1 is greatly improved, and a sealing cover 5 structure is provided at the abutment position between the branch pipes on both sides and the pipeline 1, and the sealing work at the abutment position is completed by injecting oil into the sealing cover 5.

[0022] Working principle: When it is necessary to monitor and measure the flow inside the pipeline, the staff manually drives to open the stop valves on the left branch and the right branch, so that the liquid inside the pipeline flows through the left branch, the interface pipe and the pipeline to the inlet position of the measuring instrument, and finally flows out from the outlet to the relevant component position of the right branch, and then returns to the inside of the pipeline. After a period of circulation, the staff observes the values ​​on the display screen in real time. Before opening the stop valves on the left and right branches, oil is injected into the oil filling ports at the sealing positions on the left and right branches on both sides to perform secondary sealing on the joints of the left and right branches, so that the sealing at the abutment positions of the left and right branches and the pipeline is in a relatively sealed state, thereby improving the accuracy of the monitoring data of the measuring instrument. The average value is taken after multiple measurements to avoid affecting the measurement accuracy due to local leakage. After the measurement, the stop valves on the left and right branches are closed in turn.

Claims

1. A high-pressure sealed petrochemical pipeline flowmeter, comprising a pipeline (1), wherein a left branch pipe (2) and a right branch pipe (3) are symmetrically arranged on the pipeline (1), wherein the left branch pipe (2) and the right branch pipe (3) have the same structure, and wherein: A measuring instrument (4) is provided between the left branch pipe (2) and the right branch pipe (3); a base (401) is fixedly connected to the pipe (1); a bottom plate (402) is installed at the bottom of the measuring instrument (4); the bottom plate (402) and the base (401) are connected via bolts (403); a flange (201) is fixedly connected to the left branch pipe (2); an interface pipe (202) is fixedly connected above the flange (201); and a stop valve (203) is provided on the interface pipe (202).

2. The high-pressure sealed petrochemical pipeline flowmeter according to claim 1, characterized in that: The left end of the measuring instrument (4) is provided with an inlet (404), and the right end of the measuring instrument (4) is provided with an outlet (405). The inlet (404) is connected to the interface pipe (202) on the left branch pipe (2) via a pipeline (407), and the joint is sealed. The outlet (405) is connected to the interface pipe (202) on the right branch pipe (3) via a pipeline (407), and the joint is sealed.

3. The high-pressure sealed petrochemical pipeline flowmeter according to claim 1, characterized in that: A sealing ring (204) is installed in the flange (201).

4. The high-pressure sealed petrochemical pipeline flowmeter according to claim 1, characterized in that: A cover (5) is provided on the pipeline (1) at the abutting position between the left branch pipe (2) and the right branch pipe (3) and the pipeline (1); the cover (5) is a hollow structure, and an oil filling port (501) is provided on the side wall of the cover (5).

5. The high-pressure sealed petrochemical pipeline flowmeter according to claim 1, characterized in that: The measuring instrument (4) is a high-pressure resistant flow meter, and a display screen (406) is provided on the measuring instrument (4).

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