Target shooting device for acceptance check after pipeline purging

Abstract

The utility model provides an acceptance inspection targeting device after pipeline purging, which comprises a flange plate with the pipe diameter corresponding to that of a pipeline valve at a pipeline targeting experiment position, the flange plate is connected with the pipeline valve through a bolt, and a through hole communicated with an outlet of the pipeline valve is formed in the center of the flange plate in a penetrating manner. The end, away from the pipeline valve, of the flange plate is connected to the tray through a plurality of pull rods, a test paper box is fixedly connected to the face, opposite to the flange plate, of the tray, a skylight facing the through hole is formed in the top end of the test paper box, and test paper is arranged in the skylight. The device has the advantages of being simple in structure, convenient to use, low in manufacturing cost and the like, has a good application effect in the purging and acceptance check process before formal use of pipelines for conveying oxygen, coal gas, nitrogen, hydraulic oil and the like, and has high popularization and application value.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline purging, in particular to a pipeline post-purging acceptance shooting device. Background Art

[0002] After the construction of the medium gas pipeline is completed, it is often necessary to blow it before the formal gas delivery to avoid damage to the equipment caused by debris and welding slag during the construction process; or after the construction of the pipeline for transporting flammable and explosive gases is completed, it is necessary to use inert gas to blow away the debris and welding slag in the pipeline to avoid explosion accidents after transporting flammable and explosive gases. The most frequently used and reliable method in the industry to determine whether the blowing is clean and qualified is mainly to use test paper for target shooting experiments.

[0003] However, in reality, many pipelines are often suspended outdoors, which leads to uncertain direction of the purge port, some facing upwards, some facing downwards, and in most cases there is no support point at the purge port, making it impossible to place the purge target test paper, which brings many inconveniences to the target test after purge, and thus results in low efficiency of pipeline construction and acceptance work.

[0004] Therefore, there is an urgent need for a pipeline post-purge acceptance target shooting device to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0005] The utility model aims to provide a pipeline post-purge acceptance target shooting device to solve some problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pipeline post-purge acceptance shooting device, comprising a flange with a pipe diameter corresponding to the pipeline valve at the pipeline shooting test position, the flange and the pipeline valve are connected by bolts, a through hole communicating with the pipeline valve outlet is opened through the center of the flange, the end of the flange away from the pipeline valve is connected to the tray through a plurality of pull rods, a test paper box is fixedly connected to the opposite surface of the tray and the flange, a skylight facing the through hole is opened at the top of the test paper box, and test paper is arranged in the skylight.

[0007] Furthermore, the pull rod has a certain inclination, and a plurality of the pull rods are distributed around the test strip box.

[0008] Furthermore, a test paper entrance and exit is provided through the side of the test paper box for facilitating the entry and exit of the test paper, and the test paper is inserted into the skylight through the test paper entrance and exit.

[0009] Furthermore, a slot extending along the length direction of the test paper box is provided on the inner wall on the side opposite to the test paper inlet and outlet.

[0010] After adopting the above technical solution, the following beneficial effects are achieved compared with the existing technologies: it has the advantages of simple structure, convenient use, low manufacturing cost, etc., and can have a good application effect during the purging and acceptance process before the formal commissioning of pipelines for transporting oxygen, gas, nitrogen, hydraulic oil, etc., and has great popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 is a schematic structural diagram of the present invention;

[0013] Figure 2 is a schematic structural diagram of the target shooting device of the present invention connected to the pipeline valve 4.

[0014] Description of the reference numerals: 1, flange; 11, bolt; 12, through hole; 2, pull rod; 3, tray; 4, pipeline valve; 5, test paper box; 51, skylight; 52, test paper inlet and outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] In view of the problems existing in the prior art, the present invention provides a target shooting device for acceptance after pipeline purging, and the present invention will be described in detail below with reference to the drawings.

[0017] Refer to Figure 1 - Figure 2As shown in the figure, the technical solution adopted in this specific embodiment is as follows: A device for acceptance target shooting after pipeline purging, including a flange 1 corresponding to the pipe diameter of the pipeline valve 4 at the pipeline target shooting experiment position, and also including a pull rod 2 and a tray 3. The flange 3 is connected to the pipeline valve 4 through a plurality of bolts 11. A through hole 12 communicating with the outlet of the pipeline valve 4 is penetrated through the center of the flange 1. One end of the flange 1 away from the pipeline valve 4 is installed on the tray 3 through a plurality of pull rods 2. A test paper box 5 is fixedly installed on the opposite surface of the tray 3 and the flange 1. A skylight 51 facing the through hole 12 is opened at the top of the test paper box 5. A test paper (not marked in the figure) is arranged in the skylight 51. The skylight 51 is opened as large as possible so that sundries and welding slag blown out of the pipeline can fall on the test paper. After the target shooting device is connected to the pipeline valve 4, the purging medium sundries in the pipeline are blown into the test paper box 5 through the through hole 12 and react with the test paper.

[0018] Specifically, one end of the pull rod 2 away from the flange 1 is welded and fixed to the tray 3, and the pull rod 2 has a certain inclination angle so that the center of the flange 1 and the center of the tray 3 are on the same straight line. A plurality of the pull rods 2 are distributed on the peripheral side of the test paper box 5.

[0019] Specifically, a test paper access port 52 for facilitating the access of the test paper is penetrated through the side surface of the test paper box 5, and the test paper is inserted into the interior of the skylight 51 through the test paper access port 52.

[0020] Furthermore, a slot (not marked in the figure) extending along its length direction is opened on the inner wall of the test paper box 5 on the side opposite to the test paper access port 52, so that one side of the test paper can be inserted into the slot, making the test paper not easy to be blown away. Of course, other auxiliary pressing mechanisms can also be set to press the peripheral position of the test paper.

[0021] When specifically setting, it is required that the height of the test paper box 5 should not be too high so that the test paper is tightly inserted and not easy to be blown away. At the same time, it is required that the distance between the tray 3 and the flange 1 is appropriate, neither too large nor too small. If it is too large, it is easy to cause the sundries blown out to not completely fall into the skylight 51 and react with the test paper. If it is too small, the sundries blown out are easy to rebound and cannot stay on the test paper, resulting in deviation of the target shooting experiment data.

[0022] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] The above is only used to illustrate the technical solution of the present utility model and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model should be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.

Claims

1. A pipeline post-purge acceptance target shooting device, characterized in that: It includes a flange with a pipe diameter corresponding to the pipeline valve at the pipeline target shooting test position, the flange is connected to the pipeline valve by bolts, a through hole communicating with the pipeline valve outlet is opened through the center of the flange, the end of the flange away from the pipeline valve is connected to the tray by multiple tie rods, a test paper box is fixedly connected to the opposite surface of the tray and the flange, a skylight facing the through hole is opened on the top of the test paper box, and test paper is arranged in the skylight.

2. The pipeline post-purge acceptance target shooting device according to claim 1, characterized in that: The pull rod has a certain inclination, and a plurality of the pull rods are distributed around the test paper box.

3. The pipeline post-purge inspection and targeting device according to claim 1, characterized in that: A test paper entrance and exit for facilitating the entry and exit of the test paper is provided on the side of the test paper box, and the test paper is inserted into the skylight through the test paper entrance and exit.

4. The pipeline post-purge inspection and targeting device according to claim 3, characterized in that: A slot extending along the length direction of the test paper box is provided on the inner wall on the side opposite to the test paper inlet and outlet.

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