Coke-oven gas flowmeter mounting pipeline

By setting a variable diameter joint in the coke oven gas flowmeter installation pipeline to balance the gas flow rate, the problems of zero point drifting and fluctuation during static discharge of the differential pressure transmitter of the coke oven gas flowmeter in the prior art are solved, and more accurate flow rate measurement is achieved.

CN222774059UActive Publication Date: 2025-04-18XINJIANG YAXIN NATURAL GAS PIPELINE CO LTD
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Patent Information

Application Number
CN202421460984.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-25
Publication Date
2025-04-18
Estimated Expiration
2034-06-25

AI Technical Summary

Technical Problem

During the use of the existing coke oven gas flowmeter installation pipeline, there are differential pressure transmitter drifting at zero point and fluctuations during static release, resulting in a large deviation in flow measurement.

Method used

A coke oven air flowmeter installation pipeline is designed, including the pipeline body, connecting pipe, flowmeter body, low-pressure steam pipe and variable diameter joint. The gas flow rate is balanced by setting a variable diameter connector to avoid flowmeter measurement deviation.

Benefits of technology

Through this design, the flowmeter measurement deviation is avoided, the flowmeter body and pressure conduit circuit are blocked, and the frequency of zero-point drift is reduced.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222774059U_ABST
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Abstract

The utility model relates to the technical field of coke-oven gas detection, in particular to a coke-oven gas flowmeter mounting pipeline which comprises a pipeline body for conveying coke-oven gas and further comprises a connecting pipe which is arranged on one side of the pipeline body and facilitates conveying of the coke-oven gas, and the outer side of the connecting pipe is communicated with a flowmeter body. The coke-oven gas flow meter comprises a pipeline body and a connecting pipe, the connecting pipe is communicated with a low-pressure steam pipe on the outer side of the pipeline body, and one side of the connecting pipe is provided with a reducer union which is convenient for balancing the flow of the pipeline, so that the flow of coke-oven gas in the connecting pipe can be conveniently measured by arranging the connecting pipe and the flow meter body, and the flow of the gas can be conveniently balanced by arranging the reducer union; and large measurement deviation of the flowmeter is avoided. Through checking, the flowmeter body and the pressure guide pipeline are not blocked, and the transmitter frequently generates zero drift.
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Description

Technical Field

[0001] The utility model relates to the technical field of coke oven gas detection, in particular to a coke oven gas flow meter installation pipeline. Background Art

[0002] The process of producing coke oven gas is to use several kinds of bituminous coal to prepare coking coal, which is subjected to high-temperature carbonization in the coke oven, thereby producing this combustible gas while producing coke and tar products. The main components of coke oven gas include hydrogen and methane, and also contain a small amount of carbon monoxide, unsaturated hydrocarbons above C2, carbon dioxide, oxygen and nitrogen. Among them, hydrogen, methane, carbon monoxide and unsaturated hydrocarbons are combustible components, while carbon dioxide, nitrogen and oxygen are non-combustible components. It can reduce pollution emissions and save resources through the recovery and utilization of coke oven gas. A device for measuring flow includes a pipe and a counter so that the material flowing in the pipe is counted when passing through, thereby realizing the measurement of its flow. When the coke oven gas is discharged from the furnace, the pressure fluctuation in the coke oven gas pipeline causes the measurement fluctuation of the differential pressure transmitter. The intuitive phenomenon is that the pressure in the pipeline fluctuates in a surge manner.

[0003] Since coke oven gas is a mixed gas produced in the coking process, its main components include hydrogen, methane and carbon dioxide. Therefore, a flow meter is needed to detect it. However, the existing coke oven gas flow meter installation pipeline will find that the zero point of the flow meter differential pressure transmitter drifts a little every time it is checked, and there will be fluctuations when it is left static after calibration. During operation, the instantaneous flow measurement and cumulative amount of the gas flow meter have large deviations. Utility Model Content

[0004] The utility model aims to provide a coke oven gas flow meter installation pipeline to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coke oven gas flow meter installation pipeline, including a pipeline body for conveying coke oven gas, and also including: a connecting pipe arranged on one side of the pipeline body for conveniently conveying coke oven gas, and the outside of the connecting pipe is connected to the flow meter body; a low-pressure steam pipe connected to the outside of the pipeline body, and one side of the connecting pipe is provided with a reducer joint for conveniently balancing the pipeline flow.

[0006] Preferably, a connection plate is fixedly connected to the outer side of the pipe body, and a connection frame for guiding liquid is fixedly connected to the outer side of the connection plate.

[0007] Preferably, the inner wall of the connection frame is provided with a perforation for conveniently guiding the liquid, and a liquid separation frame is provided on the top of the perforation, and the top of the liquid separation frame is fixedly connected to the bottom of the connection frame.

[0008] Preferably, a shower valve for controlling the steam delivery is provided on one side of the reducer, and a reducer is provided on the other side of the shower valve.

[0009] Preferably, a fixed disk is provided on one side of the reducer, and a connecting pipe for limiting the fixed disk is fixedly connected to the inner wall of the fixed disk.

[0010] Preferably, one end of the connecting pipe is fixedly connected to a first flange, one side of the first flange is connected to a second flange, and one side of the second flange is connected to a conveying pipe.

[0011] Preferably, the outer side of the low-pressure steam pipe is connected to a fixed pipe through which low-pressure steam enters, and a control valve is provided on the outer side of the fixed pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model can measure the gas volume of coke oven gas in the connecting pipe by setting the connecting pipe and the flow meter body, and can balance the gas flow by setting the reducer to avoid large measurement deviation of the flow meter. After inspection, the flow meter body and the pressure pipe are not blocked, and the transmitter frequently has zero drift. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of a coke oven gas flow meter installation pipeline provided by the utility model;

[0015] Figure 2 A schematic diagram of the structure of the connection frame and the perforations provided by the utility model;

[0016] Figure 3 A schematic diagram of the structure of the fixed plate and the connecting pipe provided by the utility model;

[0017] Figure 4 This is a schematic structural diagram of the low-pressure steam pipe and the delivery pipe provided by the utility model.

[0018] In the figure: 1. pipeline body; 2. connecting pipe; 3. flow meter body; 4. low-pressure steam pipe; 5. reducer; 6. connecting plate; 7. connecting frame; 8. perforation; 9. liquid separation frame; 10. shower valve; 11. fixing plate; 12. connecting pipe; 13. first flange; 14. second flange; 15. delivery pipe; 16. fixing pipe; 17. control valve. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] See also Figure 1-4 As shown, a coke oven gas flow meter installation pipeline includes a pipeline body 1 for conveying coke oven gas, and also includes: a connecting pipe 2 arranged at one side of the pipeline body 1 for conveniently conveying the coke oven gas, and the outer side of the connecting pipe 2 is connected to a flow meter body 3; a low-pressure steam pipe 4 connected to the outer side of the pipeline body 1, and a reducer 5 is arranged on one side of the connecting pipe 2 for conveniently balancing the pipeline flow.

[0021] It should be noted that: by setting up the pipeline body 1, the coke oven gas can be transported easily, by setting up the connecting pipe 2, the flow meter body 3 can be connected easily, by setting up the low-pressure steam pipe 4, the low-pressure steam can be introduced easily, and by setting up the reducing joint 5, the gas flow can be balanced easily.

[0022] refer to Figure 2 As shown, a connecting plate 6 is fixedly connected to the outer side of the pipeline body 1, and a connecting frame 7 for guiding the liquid is fixedly connected to the outer side of the connecting plate 6; the inner wall of the connecting frame 7 is provided with a perforation 8 for conveniently guiding the liquid, and a liquid separation frame 9 is provided on the top of the perforation 8, and the top of the liquid separation frame 9 is fixedly connected to the bottom of the connecting frame 7; by providing the connecting plate 6, it is convenient to fix the connecting frame 7, by providing the connecting frame 7, it is convenient to open the perforation 8, by providing the perforation 8, it is convenient to flow out the liquid, and by providing the liquid separation frame 9, it is convenient to classify the liquid.

[0023] refer to Figure 3 As shown, a drain valve 10 for controlling the transportation of steam is provided on one side of the reducer 5, and a reducer 5 is provided on the other side of the drain valve 10; a fixed disk 11 is provided on one side of the reducer 5, and a connecting pipe 12 for limiting the fixed disk 11 is fixedly connected to the inner wall of the fixed disk 11; by providing the drain valve 10, the flow of fluid can be easily controlled, by providing the fixed disk 11, the connecting frame 7 can be easily fixed, and by providing the connecting pipe 12, the coke oven gas can be easily transported.

[0024] refer to Figure 4 As shown, one end of the connecting pipe 12 is fixedly connected to the first flange 13, and one side of the first flange 13 is connected to the second flange 14, and one side of the second flange 14 is connected to the delivery pipe 15; the outer side of the low-pressure steam pipe 4 is connected to the fixed pipe 16 for low-pressure steam to enter, and the outer side of the fixed pipe 16 is provided with a control valve 17; by providing the first flange 13, it is convenient to connect the pipeline, by providing the second flange 14, it is convenient to connect the first flange 13, by providing the delivery pipe 15, it is convenient to transport the coke oven gas, by providing the fixed pipe 16, it is convenient to transport the low-pressure steam, and by providing the control valve 17, it is convenient to control the flow of gas.

[0025] Working principle: When in use, first connect the delivery pipe 15 to the coke oven gas delivery point, pass through the connecting pipe 12, and then pass through the reducer 5. At this time, it passes through the pipeline body 1 and is measured by the flow meter body 3. At the same time, the shower valve 10 is opened, and the liquid is collected by the connecting frame 7 and the liquid separation frame 9. Similarly, the gas is discharged from one side of the flow meter body 3.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A coke oven gas flow meter installation pipeline, comprising a pipeline body (1) for conveying coke oven gas, characterized in that: Also includes: A connecting pipe (2) is arranged on one side of the pipeline body (1) to facilitate the transportation of coke oven gas, and the outer side of the connecting pipe (2) is connected to a flow meter body (3); The connecting pipe (2) is connected to a low-pressure steam pipe (4) outside the pipeline body (1), and a reducer (5) is provided on one side of the connecting pipe (2) for balancing the pipeline flow.

2. A coke oven gas flow meter installation pipeline according to claim 1, characterized in that: The outer side of the pipeline body (1) is fixedly connected to a connection plate (6), and the outer side of the connection plate (6) is fixedly connected to a connection frame (7) for guiding liquid.

3. A coke oven gas flow meter installation pipeline according to claim 2, characterized in that: The inner wall of the connection frame (7) is provided with a perforation (8) for conveniently guiding the liquid, and a liquid separation frame (9) is arranged on the top of the perforation (8), and the top of the liquid separation frame (9) is fixedly connected to the bottom of the connection frame (7).

4. A coke oven gas flow meter installation pipeline according to claim 1, characterized in that: A shower valve (10) for controlling the delivery of steam is arranged on one side of the reducer (5), and a reducer (5) is arranged on the other side of the shower valve (10).

5. A coke oven gas flow meter installation pipeline according to claim 1, characterized in that: A fixed disk (11) is provided on one side of the reducer (5), and a connecting pipe (12) for limiting the position of the fixed disk (11) is fixedly connected to the inner wall of the fixed disk (11).

6. A coke oven gas flow meter installation pipeline according to claim 5, characterized in that: One end of the connecting pipe (12) is fixedly connected to a first flange (13), one side of the first flange (13) is connected to a second flange (14), and one side of the second flange (14) is connected to a delivery pipe (15).

7. A coke oven gas flow meter installation pipeline according to claim 1, characterized in that: The outside of the low-pressure steam pipe (4) is connected to a fixed pipe (16) for low-pressure steam to enter, and a control valve (17) is arranged on the outside of the fixed pipe (16).