A kind of coke oven gas pipeline fouling exploration's taper thread probe rod front end structure

Abstract

This invention provides a conical threaded probe front-end structure for detecting scale buildup in coke oven gas pipelines, relating to the field of metrology and testing technology. It includes a conical body, a connecting section, and a threaded section. The conical body is cone-shaped with continuous threads on its outer surface. The thread profile is sharp and cutting-edge-shaped, with a maximum outer diameter suitable for pipeline inspection holes smaller than DN50. The connecting section is cylindrical and located between the conical body and the threaded section. The threaded section uses M14 standard threads for a detachable connection with the probe. The entire front-end structure is made of 60# carbon steel, hardened at 60℃ and chrome-plated. In use, the probe is connected to the threaded section, inserted through the inspection hole, and rotated. The conical body uses its threads to gradually cut and break up the platen-like scale until it contacts the bottom of the pipeline. The scale thickness is calculated from the insertion depth. This invention can efficiently penetrate platen-like scale, is easy to install and disassemble, and provides accurate data support for correcting pipeline cross-sectional areas.

Description

Technical Field

[0001] This invention relates to the field of metrology and testing technology, and more particularly to a front end structure of a tapered threaded probe for detecting scale buildup in coke oven gas pipelines. Background Technology

[0002] In the process of measuring the flow rate of coke oven gas in steel enterprises, the coke oven gas medium often contains various impurities such as tar, dust, and naphthalene. These impurities gradually settle and adhere to the bottom of the pipeline during long-term transportation, and under the combined effects of high temperature, high humidity, and pressure fluctuations, they continue to deposit and caking, forming a dense scale layer. The presence of this scale layer significantly alters the effective cross-sectional area of ​​the pipeline, which is a key parameter in flow measurement calculations and directly affects the accuracy of the flow measurement results.

[0003] Currently, when calibrating flow measurement devices on coke oven gas pipelines online, it is typically necessary to drill a test hole with a diameter less than DN50 in the pipeline before inserting a standard for calibration. However, existing technologies lack specialized tools for probing the scale buildup at the bottom of pipelines. Operators struggle to accurately obtain information on the thickness, distribution, and physical state of the scale, resulting in a lack of reliable basis for correcting the pipeline's cross-sectional area, thus affecting the accuracy of flow measurement and the reliability of calibration results. Furthermore, existing probing tools often employ a straight rod structure, which is insufficient to effectively penetrate hardened scale layers. The connection between the tool and the probe is usually fixed or a simple threaded connection, making disassembly and assembly inconvenient and unable to adapt to frequent on-site replacements or the use of different sized test holes, significantly limiting operational efficiency. Therefore, there is an urgent need for a specialized probing tool that can effectively penetrate hardened scale, is easy to disassemble and assemble quickly, and is compatible with test holes smaller than DN50. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a conical threaded probe front-end structure for detecting scale buildup in coke oven gas pipelines. This invention achieves wedging penetration of plate-like scale through a continuously cutting edge thread on the conical body, and utilizes an M14 standard thread for quick assembly and disassembly. It is compatible with detection holes smaller than DN50, providing scale thickness data for flow metering calibration.

[0005] To achieve the above objectives, the present invention provides a front end structure of a tapered threaded probe for detecting scale buildup in coke oven gas pipelines, comprising: a tapered body, a connecting section, and a threaded section; The conical body is conical in shape, and its outer surface is provided with a continuous thread structure; The connecting section has a cylindrical structure and is located between the tapered body and the threaded section; The threaded section is used to form a detachable threaded connection with the probe rod.

[0006] Furthermore, the thread profile of the threaded structure has a sharp cutting edge shape.

[0007] Furthermore, the maximum outer diameter of the conical body is matched with the pipe inspection hole with a diameter less than DN50.

[0008] Furthermore, the conical body, connecting section, and threaded section are an integral structure, and the entire surface is treated with chrome plating for hardening.

[0009] Furthermore, the conical body, connecting section, and threaded section are all made of carbon steel 60# and are quenched at 60℃.

[0010] Furthermore, the threaded section adopts an M14 standard thread, and the length of the threaded section is 18mm.

[0011] By adopting the above technical solution, the present invention has the following advantages compared with the prior art: 1. The present invention provides a conical threaded probe front end structure for detecting scale buildup in coke oven gas pipelines. By adopting a structural design that combines a conical body with continuous threads, the cutting and pushing action of the threads can continuously break up plate-like scale buildup during rotation. Combined with the high hardness material of carbon steel 60# quenched, it significantly improves the penetration ability of dense scale layers.

[0012] 2. The present invention provides a tapered threaded probe front end structure for detecting scale buildup in coke oven gas pipelines. It uses M14 standard threads to connect with the probe, has a simple structure and uniform interface, and is easy to disassemble and assemble. The front end structure can be quickly replaced according to the scale buildup situation, the size of the detection hole, or the operational requirements, which effectively improves the efficiency of on-site operations and the adaptability of the tool.

[0013] 3. The present invention provides a tapered threaded probe front end structure for detecting scale buildup in coke oven gas pipelines. By comparing the probe insertion depth with the pipeline inner diameter, the thickness of the scale buildup can be accurately obtained, providing reliable data support for the precise correction of the effective cross-sectional area of ​​the pipeline, thereby significantly improving the accuracy of coke oven gas flow measurement and the precision of online calibration. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the front end of a tapered threaded probe rod for detecting scale buildup in coke oven gas pipelines, as described in this invention.

[0016] In the diagram: 1. Conical body; 2. Connecting section; 3. Threaded section. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0021] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0024] like Figure 1 As shown, this invention provides a conical threaded probe front end structure for detecting scale buildup in coke oven gas pipelines, comprising: a conical body 1, a connecting section 2, and a threaded section 3. The conical body 1, connecting section 2, and threaded section 3 are coaxially arranged and are integrally molded to ensure the overall structural strength and operational stability.

[0025] The conical body 1 is conical in shape, and its outer surface is provided with a continuous thread structure, and the thread profile of the thread structure is in the shape of a sharp cutting edge. The maximum outer diameter of the conical body 1 matches the pipe inspection hole with a diameter less than DN50, so as to ensure that the front end structure can be smoothly inserted into the inspection hole of the coke oven gas pipeline, avoiding damage to the hole opening or affecting the detection accuracy due to improper size.

[0026] The connecting section 2 is a cylindrical structure located between the conical body 1 and the threaded section 3. The two ends of the connecting section 2 are fixedly connected to the large end of the conical body 1 and one end of the threaded section 3, respectively. As a force transition part during operation, it can achieve smooth force transmission when rotating and applying force, avoid stress concentration, and provide rigid support for the overall structure.

[0027] The threaded section 3 is located at the end of the connecting section 2 away from the conical body 1. The threaded section 3 adopts an M14 standard thread and has a length of 18mm. It is used to form a detachable threaded connection structure with the probe rod, enabling quick assembly and disassembly, and facilitating the rapid replacement of the front-end tool on site according to the condition of the scale and the specifications of the inspection hole.

[0028] Furthermore, the conical body 1, connecting section 2, and threaded section 3 are all made of carbon steel 60# and quenched at 60℃, resulting in an overall surface Rockwell hardness of HRC58-62. Simultaneously, the entire surface of the conical body 1, connecting section 2, and threaded section 3 undergoes chrome plating hardening treatment to enhance surface hardness and wear resistance, ensuring good mechanical properties and durability in the harsh industrial environment of high dust and high humidity caused by coke oven gas.

[0029] Working principle: After drilling a test hole smaller than DN50 on the coke oven gas pipeline, screw the threaded section 3 into the threaded interface of the probe and tighten it; insert the conical body 1 into the pipeline through the test hole, and slowly rotate the probe to drive the conical body 1 to rotate; the sharp cutting edge of the thread on the outer surface of the conical body 1 forms a stable axial feed force during rotation, and gradually cuts into, breaks and penetrates the plated scale layer by utilizing the wedge effect of the thread until the conical body 1 contacts the bottom of the pipeline; by recording the insertion depth of the probe and combining it with the inner diameter of the pipeline, the thickness of the scale can be accurately calculated, providing reliable data support for the accurate correction of the effective cross-sectional area of ​​the pipeline; after the inspection is completed, the probe can be removed by rotating it in the opposite direction.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tapered threaded probe front end structure for detecting scale buildup in coke oven gas pipelines, characterized in that, include: Conical body, connecting section and threaded section; The conical body is conical in shape, and its outer surface is provided with a continuous thread structure; The connecting section has a cylindrical structure and is located between the tapered body and the threaded section; The threaded section is used to form a detachable threaded connection with the probe rod.

2. The front end structure of the tapered threaded probe for detecting scale buildup in coke oven gas pipelines according to claim 1, characterized in that, The thread profile of the threaded structure has a sharp cutting edge shape.

3. The front end structure of the tapered threaded probe for detecting scale buildup in coke oven gas pipelines according to claim 1, characterized in that, The maximum outer diameter of the conical body is matched with the pipe inspection hole with a diameter less than DN50.

4. The front end structure of the tapered threaded probe for detecting scale buildup in coke oven gas pipelines according to claim 1, characterized in that, The conical body, connecting section, and threaded section are an integral structure, and the entire surface is chrome-plated and hardened.

5. The front end structure of the tapered threaded probe for detecting scale buildup in coke oven gas pipelines according to claim 1, characterized in that, The conical body, connecting section, and threaded section are all made of carbon steel 60# and have been quenched at 60℃.

6. The front end structure of the tapered threaded probe for detecting scale buildup in coke oven gas pipelines according to claim 1, characterized in that, The threaded section adopts the M14 standard thread, and the length of the threaded section is 18mm.

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