Industrial gas sample extraction device and use method thereof

Abstract

The invention relates to an industrial gas sample extraction device and a use method thereof, and belongs to the technical field of industrial gas sampling equipment. Comprising a pipeline body and a rotating body. The pipeline main body is provided with a sampling part, a first sampling channel and a first mounting space are formed in the pipeline main body, and first sampling holes are distributed in the sampling part; the rotating body is rotationally arranged in the first mounting space, a second sampling hole corresponding to the first sampling hole is formed in the rotating body, a first mounting position and a second mounting position are preset in the first mounting space of the rotating body, and a second mounting space is formed in the rotating body and used for communicating with the second sampling hole to transport sampled coal gas. The gas sampling device is used for solving the technical problems that in the prior art, local pressure change and vortex are formed at the moment that gas impacts a sampling surface or a pipeline is communicated, gas components with different components in the pipeline are redistributed near the sampling surface after a flow field is interfered, and the sampling accuracy is influenced.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial gas sampling equipment, and in particular relates to an industrial gas sample extraction device and a use method thereof. Background Art

[0002] Industrial gas is widely used. The dry distillation gas contains combustible components such as hydrogen, methane, carbon monoxide, and a small amount of non-combustible components such as carbon dioxide and nitrogen. The calorific value of this gas is relatively high and can be used as city gas or industrial fuel; the composition and calorific value of gasified gas depend on factors such as the gasification method, the type of gasifying agent and the nature of the coal. This gas is widely used in industrial production, such as chemical processes such as synthetic ammonia and methanol synthesis; the calorific value of blast furnace gas is relatively low, but due to the large amount produced during the iron-making process, after purification, it can be used as fuel in steel mills for hot blast furnaces, heating furnaces and other equipment to achieve energy recovery and utilization; the calorific value of converter gas is relatively high. After recovery, it can be used as high-quality fuel for heating furnaces and other equipment in steel mills, which helps to reduce the energy costs of steel mills and improve energy utilization efficiency.

[0003] The patent with publication number: CN116735291A discloses a smoke sampling system and sampling method for blast furnace gas, including a smoke sampling device, the smoke sampling device includes a mounting component and a smoke sampling component, the mounting component is sealed and connected to the sampling hole of the flue, the smoke sampling component includes a sampling gun, the sampling gun is sealed and installed inside the mounting component and extends to the flue, and the installation position of the sampling gun is adjustable along the depth direction of the flue.

[0004] In the process of sampling coal gas in the prior art, there are at least the following problems:

[0005] When sampling the flue with a sampling gun or other sampler, resistance to the flow of gas will be generated due to the connectivity of the sampling pipeline and the influence of the sampling structure. When the gas hits the sampling surface or the moment the pipeline is connected, local pressure changes and vortices will be formed. When the flow field is disturbed, the gas components of different compositions in the pipeline will be redistributed near the sampling surface, affecting the accuracy of the sampling. Summary of the invention

[0006] The present invention provides an industrial gas sample extraction device and a method for using the same, which are used to solve the technical problem in the prior art that when gas hits a sampling surface or a pipeline is connected, local pressure changes and vortices are formed, and after the flow field is disturbed, gas components of different components in the pipeline are redistributed near the sampling surface, affecting the accuracy of sampling.

[0007] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0008] An industrial gas sample extraction device comprises: a pipeline body and a rotating body. The pipeline body has a sampling part, a first sampling channel and a first installation space are provided inside the pipeline body, and a first sampling hole is distributed on the sampling part; a rotating body is rotatably arranged in the first installation space, a second sampling hole corresponding to the first sampling hole is provided on the rotating body, a first installation position and a second installation position are preset in the first installation space, and a second installation space is provided in the rotating body for connecting the second sampling hole to transport the sampled gas.

[0009] Furthermore, it also includes: a first connector, a second connector, a sliding sleeve, and a plurality of sealing gaskets. The first connector is installed on one side of the pipeline body; the second connector is installed on the other side of the pipeline body, and the first connector and the second connector are used to connect the pipeline for transportation; the sliding sleeve is installed between the pipeline body and the rotating body; and a plurality of sealing gaskets are installed between the inner wall of the first installation space and the outer wall of the rotating body.

[0010] Furthermore, it also includes: a rotating ring, an output pipe, and a stopper. The rotating ring is sleeved on the rotating body, and the rotating ring is connected to the second installation space; the output pipe is installed on the rotating ring, and the output pipe is connected to the second installation space, and is used to output the sample collected by the first sampling hole from the output pipe; the stopper is installed on the rotating ring, and is used to limit and fix the relative position of the rotating ring and the pipeline body.

[0011] Furthermore, it further comprises: a plurality of collecting tubes. The plurality of collecting tubes are installed in the second installation space and communicated with the second sampling holes, and are used to independently output the samples collected by the plurality of second sampling holes.

[0012] Furthermore, when the collecting tube is used to independently collect the second sampling holes, the second sampling holes at different depths are sampled independently respectively, and then the samples collected from the corresponding second sampling holes are output through the output tube.

[0013] Furthermore, when the rotating body is located at the first installation position, the first sampling hole and the second sampling hole are staggered, thereby closing the first sampling hole and stopping sampling; when the rotating body is located at the second installation position, the second sampling hole is aligned with the first sampling hole, thereby connecting the first sampling hole and the second sampling hole for sampling.

[0014] A method of use comprises the following steps:

[0015] S1. The rotating body is set at the first installation position, and the pipeline body is assembled at the position to be tested of the gas transportation pipeline. The first connecting member and the second connecting member are oriented so that the gas is input from one end of the first connecting member and output from one end of the second connecting member.

[0016] S2, rotating the rotating body, setting the rotating body at the second installation position, and then clamping and fixing the stopper, the rotating body and the pipeline body, sampling the gas transportation pipeline, and then outputting the sample through the output pipe;

[0017] S3, releasing the clamping of the limiter, rotating the rotating body, setting the rotating body at the first installation position, blocking the first sampling hole, and ending sampling.

[0018] The present invention provides an industrial gas sample extraction device and a method for using the same, which have the following beneficial effects:

[0019] By installing the pipeline body at the point to be tested and providing a sampling portion with a curved surface to sample the gas flowing in the pipeline, the local turbulence caused to the gas at the sampling point can be reduced, thereby improving the accuracy of gas sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of an industrial gas sample extraction device provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of a pipeline body provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a rotating body provided by an embodiment of the present invention;

[0024] Figure 4 for Figure 1 A side view of an industrial gas sample extraction device;

[0025] Figure 5 for Figure 1 A top view of an industrial gas sample extraction device;

[0026] Figure 6 For along Figure 4The cross-sectional view of the AA path expansion;

[0027] Figure 7 For along Figure 5 Cross-sectional view of the BB path expansion;

[0028] Figure 8 For along Figure 4 Cross-sectional view of the CC path expansion;

[0029] Fig. 9 for Figure 6 A cross-sectional view of an industrial gas sample extraction device after a collecting tube is installed;

[0030] Fig.10 for Figure 8 A cross-sectional view of an industrial gas sample extraction device after a collection tube is installed.

[0031] In the figure: 10-pipe body; 11-sampling part; 12-first sampling channel; 13-first installation space; 14-first sampling hole; 20-rotating body; 21-second sampling hole; 22-second installation space; 15-first connecting piece; 16-second connecting piece; 17-sealing gasket; 23-rotating ring; 24-output pipe; 25-limiting piece; 26-collecting pipe. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0033] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be welding, bolt connection, or riveting; it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Example:

[0037] based on Figures 1 to 10 As shown, this embodiment provides an industrial gas sample extraction device, including: a pipeline body 10, and a rotating body 20. The pipeline body 10 has a sampling portion 11, a first sampling channel 12 and a first installation space 13 are opened inside the pipeline body 10, and a first sampling hole 14 is distributed on the sampling portion 11; the rotating body 20 is rotatably arranged in the first installation space 13, and a second sampling hole 21 corresponding to the first sampling hole 14 is opened on the rotating body 20. The rotating body 20 is preset with a first installation position and a second installation position in the first installation space 13, and a second installation space 22 is provided in the rotating body 20, which is used to connect the second sampling hole 21 to transport the sampled gas.

[0038] In this embodiment, if Figures 1 to 10 As shown, the pipeline body 10 is a common double-pass or multi-pass pipeline, the channel inside the pipeline is a first sampling channel 12, a protrusion with an arc surface is provided on the inner wall of the pipeline body 10, the protrusion is an annular structure, the annular structure of the protrusion is the sampling part 11, the sampling part 11 and the pipeline body 10 are formed with corresponding collection parts, the first sampling holes 14 are evenly arranged on the collection part along the circumferential direction, and the installation of the pipeline body 10 is divided into an inlet end and an outlet end, the first collection holes are distributed on one side of the collection part close to the inlet end, the contact surface of the sampling part 11 and the gas is a streamlined curved surface, which is used to guide the gas to flow stably through the sampling part 11, reduce the local gas turbulence caused by the sampler, and thus affect the accuracy of sampling.

[0039] Further, in some implementations of this embodiment, Figures 1 to 10 As shown, it also includes: a first connecting member 15, a second connecting member 16, a sliding sleeve, and a plurality of sealing gaskets 17. The first connecting member 15 is installed on one side of the pipeline body 10; the second connecting member 16 is installed on the other side of the pipeline body 10, and the first connecting member 15 and the second connecting member 16 are used to connect the pipeline for transportation; the sliding sleeve is installed between the pipeline body 10 and the rotating body 20; and the plurality of sealing gaskets 17 are installed between the inner wall of the first installation space 13 and the outer wall of the rotating body 20.

[0040] In this embodiment, if Figures 1 to 10 As shown, the first connecting member 15 and the second connecting member 16 may be flanges for connecting a gas transport pipeline, and a sealing ring is provided between the first connecting member 15, the second connecting member 16 and the gas transport pipeline to improve the sealing performance, and the sliding sleeve may be a structure such as a sleeve or a bearing, which is used to reduce the friction between the pipeline body 10 and the rotating body 20, and a sealing gasket 17 is provided between the first installation space 13 and the rotating body 20 to prevent gas escape.

[0041] Further, in some implementations of this embodiment, Figures 1 to 10 As shown, it also includes: a rotating ring 23, an output pipe 24, and a stopper 25. The rotating ring 23 is sleeved on the rotating body 20, and the rotating ring 23 is communicated with the second installation space 22; the output pipe 24 is installed on the rotating ring 23, and the output pipe 24 is communicated with the second installation space 22, and is used to output the sample collected by the first sampling hole 14 from the output pipe 24; the stopper 25 is installed on the rotating ring 23, and is used to limit and fix the relative position of the rotating ring 23 and the pipeline body 10.

[0042] In this embodiment, if Figures 1 to 10 As shown, the rotating ring 23 is used to expand the accommodating space of the rotating body 20. The output pipe 24 is arranged on the rotating ring 23 to output the gas from the output pipe 24. Specifically, a gas collecting bottle or a sampling box can be used to store the sampled gas.

[0043] Further, in some implementations of this embodiment, Figures 1 to 10 As shown, it includes: a plurality of collecting tubes 26. The plurality of collecting tubes 26 are installed in the second installation space 22, communicated with the second sampling holes 21, and are used to independently output the samples collected by the plurality of second sampling holes 21.

[0044] In this embodiment, if Fig. 9 and Fig.10 As shown, by installing a collection tube 26 in the rotating body 20, multi-point sampling is achieved. In the experimental process where different depths need to be sampled separately, multiple collection tubes 26 are used to collect samples separately, thereby expanding the application range of the sample extraction device.

[0045] Further, in some implementations of this embodiment, Figures 1 to 10 As shown, when the rotating body 20 is located at the first installation position, the first sampling hole 14 and the second sampling hole 21 are staggered, so that the first sampling hole 14 is closed and sampling is stopped; when the rotating body 20 is located at the second installation position, the second sampling hole 21 is aligned with the first sampling hole 14, so that the first sampling hole 14 and the second sampling hole 21 are connected to perform sampling.

[0046] In this embodiment, if Figures 1 to 10 As shown, the outer shape of the rotating body 20 corresponds to the inner wall of the first installation space 13. When the rotating body 20 is located at the first installation position, the second sampling hole 21 is located between the first sampling holes 14. The first sampling holes 14 are blocked by the outer wall of the rotating body 20, thereby stopping the sampling of the sampling part 11. When located at the second installation position, the first sampling hole 14 is aligned with the second sampling hole 21, thereby realizing the gas collection sampling through the output pipe 24 or the collection pipe 26.

[0047] Based on the above device, this embodiment also provides a method of use, including the following steps:

[0048] S1. The rotating body 20 is set at the first installation position, and the pipeline body 10 is assembled at the position to be tested in the gas transportation pipeline. The first connecting member 15 and the second connecting member 16 are oriented so that the gas is input from one end of the first connecting member 15 and output from one end of the second connecting member 16;

[0049] S2, rotating the rotating body 20, setting the rotating body 20 at the second installation position, and then clamping and fixing the stopper 25, the rotating body 20 and the pipeline body 10, sampling the gas transportation pipeline, and then outputting the sample through the output pipe 24;

[0050] S3, releasing the clamping of the limiter 25, rotating the rotating body 20, setting the rotating body 20 at the first installation position, blocking the first sampling hole 14, and ending the sampling.

[0051] In summary, in the process of transporting gas pipelines using an industrial gas sample extraction device and a method of using the same, by switching the rotating body 20 between the first installation position and the second installation position, the sampling channel can be accurately opened and closed, the start and stop of sampling can be effectively controlled, the accuracy and operability of the sampling process can be ensured, and unnecessary gas leakage and sampling errors can be avoided; samples collected from different second sampling holes 21 can be output independently through multiple collection tubes 26, which is conducive to the classification, collection and analysis of gas samples, meets various detection and research needs, and provides convenience for in-depth understanding of gas composition and characteristics; through the sampling part 11 with a streamlined surface, local disorder caused by the impact of gas on the sampling element during sampling is reduced, the accuracy and precision of sampling are improved, and it is more suitable for high-precision analytical sampling.

[0052] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An industrial gas sample extraction device, characterized in that: include: A pipeline body (10) having a sampling portion (11), a first sampling channel (12) and a first installation space (13) being provided inside the pipeline body (10), and first sampling holes (14) being distributed on the sampling portion (11); A rotating body (20) is rotatably arranged in the first installation space (13); a second sampling hole (21) corresponding to the first sampling hole (14) is opened on the rotating body (20); a first installation position and a second installation position are preset in the first installation space (13) for the rotating body (20); and a second installation space (22) is provided in the rotating body (20) for connecting to the second sampling hole (21) to transport sampled coal gas.

2. The industrial gas sample extraction device according to claim 1, characterized in that: Also includes: A first connecting piece (15) installed on one side of the pipeline body (10); a second connecting piece (16) installed on the other side of the pipeline body (10), the first connecting piece (15) and the second connecting piece (16) being used to connect the transport pipeline; A sliding sleeve installed between the pipeline body (10) and the rotating body (20); A plurality of sealing gaskets (17) are installed between the inner wall of the first installation space (13) and the outer wall of the rotating body (20).

3. The industrial gas sample extraction device according to claim 2, characterized in that: Also includes: a rotating ring (23) sleeved on the rotating body (20), and the rotating ring (23) is in communication with the second installation space (22); an output pipe (24) mounted on the rotating ring (23), the output pipe (24) being in communication with the second installation space (22) and being used for outputting the sample collected by the first sampling hole (14) from the output pipe (24); A limiter (25) is mounted on the rotating ring (23) and is used to limit and fix the relative position of the rotating ring (23) and the pipeline body (10).

4. The industrial gas sample extraction device according to claim 3, characterized in that: Also includes: A plurality of collecting tubes (26) are installed in the second installation space (22); the collecting tubes (26) are in communication with the second sampling holes (21) and are used to independently output samples collected by the plurality of second sampling holes (21).

5. The industrial gas sample extraction device according to claim 4, characterized in that: When the collecting tube (26) is used to independently collect the second sampling holes (21), the second sampling holes (21) at different depths are sampled independently respectively, and the samples collected from the corresponding second sampling holes (21) are output via the output tube (24).

6. An industrial gas sample extraction device according to claim 3 or 5, characterized in that: When the rotating body (20) is located at the first installation position, the first sampling hole (14) and the second sampling hole (21) are interlaced, thereby closing the first sampling hole (14) and stopping sampling; When the rotating body (20) is located at the second installation position, the second sampling hole (21) is aligned with the first sampling hole (14), so that the first sampling hole (14) and the second sampling hole (21) are connected to perform sampling.

7. A method of use, characterized in that: An industrial gas sample extraction device according to claim 6 comprises the following steps: S1. The rotating body (20) is arranged at the first installation position, and the pipeline body (10) is assembled at the position to be tested of the gas transportation pipeline, and the first connecting member (15) and the second connecting member (16) are oriented so that the gas is input from one end of the first connecting member (15) and output from one end of the second connecting member (16); S2, rotating the rotating body (20), setting the rotating body (20) at the second installation position, and then clamping and fixing the stopper (25) and the rotating body (20) and the pipeline body (10) to sample the gas transportation pipeline, and then outputting the sample through the output pipe (24); S3, releasing the clamping of the limiting member (25), rotating the rotating body (20), setting the rotating body (20) at the first installation position, blocking the first sampling hole (14), and ending sampling.

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