Blind plate for hydrostatic test of process pipeline

Abstract

The utility model relates to the technical field of pipeline water pressure test, and discloses a process pipeline water pressure test blind plate which comprises a blind plate, a liquid conveying pipe and a backflow pipe, a water outlet blind hole and a water return blind hole are formed in the two sides of the front end of the blind plate respectively, and a first flow guide groove and a second flow guide groove are formed in the two sides of the blind plate respectively. One end of the first flow guide groove communicates with the water outlet blind hole, the other end of the first flow guide groove penetrates through the rear end structure on one side of the blind plate, one end of the second flow guide groove communicates with the water return blind hole, and the other end of the second flow guide groove penetrates through the rear end structure on the other side of the blind plate. The blind plate, the liquid conveying pipe, the backflow pipe, the water outlet blind hole formed in the blind plate, the water return blind hole, the first flow guide grooves and the second flow guide grooves form the multifunctional blind plate, in the follow-up use process, the requirement for convenient and fast installation is met, the water conveying use condition of multi-position adjustment can be met, and the problems existing in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline water pressure testing, in particular to a blind plate for a process pipeline water pressure testing. Background Art

[0002] A blind plate, also known as a flange, a blind flange, or a pipe plug, usually refers to a flange without a hole in the middle, which is used to seal the pipe opening. With the further improvement of related technologies, blind plates can also be used in water pressure tests of process pipes. For example, the patent document with application number 202222855098.1 discloses that "the blind plate for water pressure test of process pipes provided by the utility model can be used for pipe pressure testing. The blind plate body can isolate the process pipe system. The short pipe on the blind plate body can be used as a water injection port or a series port. It has multifunctional characteristics and can avoid dismantling larger pipe components, thereby speeding up the pressure test efficiency and reducing construction costs." However, from the actual operation point of view, the above-mentioned prior art has a single water inlet and outlet position, which will cause certain limitations on the working environment. Secondly, the internal pipe may be blocked after long-term use, but the above-mentioned prior art does not provide technical means for clearing the blockage, and is insufficient in structural performance for sustainable use. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a blind plate for a water pressure test of a process pipeline, which solves the problems raised by the above-mentioned background technology.

[0004] The utility model provides the following technical solution: a blind plate for hydraulic pressure test of a process pipeline, comprising a blind plate, a liquid infusion pipe, and a return pipe, wherein both sides of the front end of the blind plate are respectively provided with a water outlet blind hole and a water return blind hole, and the interior of both sides of the blind plate are respectively provided with a first guide groove and a second guide groove, one end of the first guide groove is communicated with the water outlet blind hole, and the other end of the first guide groove penetrates the rear end structure of one side of the blind plate, one end of the second guide groove is communicated with the water return blind hole, and the other end of the second guide groove penetrates the rear end structure of the other side of the blind plate;

[0005] The two sides of the rear end of the blind plate are respectively connected to a first transition spiral tube aligned with and connected to the other end of the first guide groove, and a second transition spiral tube aligned with and connected to the other end of the second guide groove. The inner side of one end of the infusion tube is threadedly connected to the surface of the first transition spiral tube and is fitted and connected to the surface of the rear end of the blind plate. The inner side of one end of the reflux tube is threadedly connected to the surface of the second transition spiral tube and is fitted and connected to the surface of the rear end of the blind plate.

[0006] Preferably, the blind plate is provided with a plurality of mounting holes inside, and the plurality of mounting holes are distributed along the circumference of the blind plate, thereby facilitating the subsequent installation of the blind plate and the existing corresponding pipeline.

[0007] Preferably, the number of the first guide grooves is the same as the number of the second guide grooves and both are set to four. The four first guide grooves are equidistantly distributed along the circumference of the water outlet blind hole, and the four second guide grooves are equidistantly distributed along the circumference of the water return blind hole, thereby providing structural conditions for subsequent adjustment and use of multiple positions, thereby meeting a variety of usage environments in reality.

[0008] Preferably, four first transition spiral tubes are provided and are installed on the rear end of the blind plate in a manner of being aligned with the other ends of the four first guide grooves respectively, and except for the first transition spiral tube threadedly connected to the infusion tube, the remaining three first transition spiral tubes are all threadedly connected to the first sealing cover to ensure the single-channel delivery effect during the use of the infusion tube.

[0009] Preferably, four second transition spiral tubes are provided and are installed on the rear end of the blind plate in a manner of being aligned with the other ends of the four second guide grooves respectively, and except for the second transition spiral tube threadedly connected to the return pipe, the remaining three second transition spiral tubes are all threadedly connected to the second sealing covers to ensure the conveying effect of a single channel during the use of the return pipe.

[0010] The blind plate is composed of a first assembled blind plate body and a second assembled blind plate body, a threaded hole is provided in the rear end of the first assembled blind plate body, a countersunk hole aligned with the threaded hole is provided in the second assembled blind plate body, an assembly screw that can be threadedly connected to the threaded hole is installed in the countersunk hole, and one end face of the assembly screw is coplanar with the rear end surface of the second assembled blind plate body, thereby providing disassembly and cleaning conditions for subsequent blockage problems.

[0011] Selected, both ends of several of the mounting holes respectively penetrate the first assembled blind plate body and the second assembled blind plate body, the front ends of the four first guide grooves are opened on the rear end of one side of the first assembled blind plate body, the rear ends of the four first guide grooves are opened on the front end of one side of the second assembled blind plate body, the front ends of the four second guide grooves are opened on the rear end of the other side of the first assembled blind plate body, and the rear ends of the four second guide grooves are opened on the front end of the other side of the second assembled blind plate body, and each structure installs the first assembled blind plate body and the second assembled blind plate body for adaptation.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The blind plate, infusion tube, return tube, water outlet blind hole, return water blind hole and multiple first guide grooves and second guide grooves arranged in the utility model constitute a multifunctional blind plate. In the subsequent use process, the processing can not only meet the convenient installation, but also meet the water delivery conditions of multi-position adjustment, thus solving the problems existing in the prior art.

[0014] 2. The utility model sets the blind plate as a composite structure of a first assembled blind plate body, a second assembled blind plate body, and assembly screws, and then forms another multifunctional blind plate with an infusion tube, a return tube, a water outlet blind hole and a return water blind hole arranged inside the blind plate, and a plurality of first guide grooves and second guide grooves. In addition to satisfying the functions of convenient installation and multi-position adjustable water delivery, the first assembled blind plate body and the second assembled blind plate body can be disassembled and cleaned after the first guide groove and the second guide groove are blocked, thereby ensuring the sustainable use effect of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial cross-sectional schematic diagram of the first structural embodiment of the utility model;

[0016] Figure 2 It is a front view schematic diagram of the first embodiment of the structure of the utility model;

[0017] Figure 3 It is a partial cross-sectional schematic diagram of the second guide groove of the utility model structure;

[0018] Figure 4 It is a rear view schematic diagram of the structural blind plate of the utility model;

[0019] Figure 5 It is a rear view schematic diagram of the first embodiment of the structure of the utility model;

[0020] Figure 6 It is a partial cross-sectional schematic diagram of the second structural embodiment of the utility model;

[0021] Figure 7 It is a rear view schematic diagram of the second structural embodiment of the utility model;

[0022] Figure 8 It is a rear view schematic diagram of the first assembled blind plate body of the utility model structure;

[0023] Fig. 9 It is a front view schematic diagram of the second assembled blind plate body of the utility model structure.

[0024] In the figure: 1, blind plate; 101, first assembled blind plate body; 102, second assembled blind plate body; 2, water outlet blind hole; 3, water return blind hole; 4, first guide groove; 5, second guide groove; 6, first transition spiral tube; 7, second transition spiral tube; 8, infusion tube; 9, return tube; 10, mounting hole; 11, first sealing cover; 12, second sealing cover; 13, assembly screws. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1-5 , a blind plate for hydraulic pressure test of a process pipeline, comprising a blind plate 1, a liquid infusion pipe 8, and a return pipe 9, a water outlet blind hole 2 and a return water blind hole 3 are respectively opened on both sides of the front end of the blind plate 1, and a first guide groove 4 and a second guide groove 5 are respectively opened inside both sides of the blind plate 1, one end of the first guide groove 4 is connected with the water outlet blind hole 2, and the other end of the first guide groove 4 passes through the rear end structure of one side of the blind plate 1, one end of the second guide groove 5 is connected with the return water blind hole 3, and the other end of the second guide groove 5 passes through the rear end structure of the other side of the blind plate 1;

[0028] The two sides of the rear end of the blind plate 1 are respectively connected with a first transition spiral tube 6 aligned with and connected to the other end of the first guide groove 4, and a second transition spiral tube 7 aligned with and connected to the other end of the second guide groove 5. The inner side of one end of the infusion tube 8 is threadedly connected to the surface of the first transition spiral tube 6 and is fitted and connected to the surface of the rear end of the blind plate 1. The inner side of one end of the return pipe 9 is threadedly connected to the surface of the second transition spiral tube 7 and is fitted and connected to the surface of the rear end of the blind plate 1.

[0029] The blind plate 1 is provided with a plurality of mounting holes 10, which are distributed along the circumference of the blind plate 1, thereby facilitating the subsequent installation of the blind plate 1 and the existing corresponding pipeline;

[0030] The number of the first guide grooves 4 is the same as the number of the second guide grooves 5 and both are set to four. The four first guide grooves 4 are equidistantly distributed along the circumference of the water outlet blind hole 2, and the four second guide grooves 5 are equidistantly distributed along the circumference of the water return blind hole 3, providing structural conditions for subsequent adjustment and use of multiple positions, thereby meeting various use environments in reality. The number of the first transition spiral tubes 6 is four and is installed on the rear end of the blind plate 1 in a manner of aligning the other ends of the four first guide grooves 4 respectively. In addition to the first transition spiral tube 6 threadedly connected to the infusion tube 8, the remaining three first transition spiral tubes 6 are all threadedly connected to the first sealing cover 11 to ensure the single-channel delivery effect during the use of the infusion tube 8;

[0031] There are four second transition spiral tubes 7, which are installed on the rear end of the blind plate 1 in a manner of being aligned with the other ends of the four second guide grooves 5, respectively. In addition to the second transition spiral tube 7 threadedly connected to the return pipe 9, the remaining three second transition spiral tubes 7 are all threadedly connected to the second sealing cover 12 to ensure the conveying effect of a single channel during the use of the return pipe 9.

[0032] The blind plate 1 is composed of a first assembled blind plate body 101 and a second assembled blind plate body 102. A threaded hole is provided in the rear end of the first assembled blind plate body 101, and a countersunk hole aligned with the threaded hole is provided in the second assembled blind plate body 102. An assembly screw 13 that can be threadedly connected to the threaded hole is installed in the countersunk hole. An end face of the assembly screw 13 is coplanar with the rear end surface of the second assembled blind plate body 102, thereby providing disassembly and cleaning conditions for subsequent blockage problems.

[0033] Both ends of several mounting holes 10 respectively penetrate the first assembled blind plate body 101 and the second assembled blind plate body 102, the front ends of the four first guide grooves 4 are opened on the rear end of one side of the first assembled blind plate body 101, the rear ends of the four first guide grooves 4 are opened on the front end of one side of the second assembled blind plate body 102, the front ends of the four second guide grooves 5 are opened on the rear end of the other side of the first assembled blind plate body 101, and the rear ends of the four second guide grooves 5 are opened on the front end of the other side of the second assembled blind plate body 102, and each structure is installed with the first assembled blind plate body 101 and the second assembled blind plate body 102 for adaptation.

[0034] Working principle: When in use, the blind plate 1 is installed with the existing pipeline to be tested, and a plurality of mounting holes 10 and the existing bolts can provide an installation condition. After the blind plate 1 is assembled with the existing pipeline to be tested, the water can be transported into the pipeline through the infusion pipe 8, the corresponding first guide groove 4, and the water outlet blind hole 2 by using a pumping device, and the water pressure in the pipeline is tested. The tested water will be refluxed through the return water blind hole 3, the corresponding second guide groove 5, and the return pipe 9;

[0035] When changing the operating positions of the infusion tube 8 and the return tube 9, the positions of the three first sealing covers 11 can be adjusted by twisting to free up another first transition spiral tube 6, and then the infusion tube 8 is threadedly connected to the freed first transition spiral tube 6. Similarly, the positions of the three second sealing covers 12 can be adjusted by twisting to free up another second transition spiral tube 7, and then the return tube 9 is threadedly connected to the freed second transition spiral tube 7. After completion, repeat the operation according to the above-mentioned operating steps.

[0036] Embodiment 2

[0037] See also Figure 2-3 , Figure 6-9, a blind plate for hydraulic pressure test of a process pipeline, comprising a blind plate 1, a liquid infusion pipe 8, and a return pipe 9, a water outlet blind hole 2 and a return water blind hole 3 are respectively opened on both sides of the front end of the blind plate 1, and a first guide groove 4 and a second guide groove 5 are respectively opened inside both sides of the blind plate 1, one end of the first guide groove 4 is connected with the water outlet blind hole 2, and the other end of the first guide groove 4 passes through the rear end structure of one side of the blind plate 1, one end of the second guide groove 5 is connected with the return water blind hole 3, and the other end of the second guide groove 5 passes through the rear end structure of the other side of the blind plate 1;

[0038] The two sides of the rear end of the blind plate 1 are respectively connected with a first transition spiral tube 6 aligned with and connected to the other end of the first guide groove 4, and a second transition spiral tube 7 aligned with and connected to the other end of the second guide groove 5. The inner side of one end of the infusion tube 8 is threadedly connected to the surface of the first transition spiral tube 6 and is fitted and connected to the surface of the rear end of the blind plate 1. The inner side of one end of the return pipe 9 is threadedly connected to the surface of the second transition spiral tube 7 and is fitted and connected to the surface of the rear end of the blind plate 1.

[0039] The blind plate 1 is provided with a plurality of mounting holes 10, which are distributed along the circumference of the blind plate 1, thereby facilitating the subsequent installation of the blind plate 1 and the existing corresponding pipeline;

[0040] The number of the first guide grooves 4 is the same as the number of the second guide grooves 5 and both are set to four. The four first guide grooves 4 are equidistantly distributed along the circumference of the water outlet blind hole 2, and the four second guide grooves 5 are equidistantly distributed along the circumference of the water return blind hole 3, providing structural conditions for subsequent adjustment and use of multiple positions, thereby meeting various use environments in reality. The number of the first transition spiral tubes 6 is four and is installed on the rear end of the blind plate 1 in a manner of aligning the other ends of the four first guide grooves 4 respectively. In addition to the first transition spiral tube 6 threadedly connected to the infusion tube 8, the remaining three first transition spiral tubes 6 are all threadedly connected to the first sealing cover 11 to ensure the single-channel delivery effect during the use of the infusion tube 8;

[0041] There are four second transition spiral tubes 7, which are installed on the rear end of the blind plate 1 in a manner of being aligned with the other ends of the four second guide grooves 5, and except for the second transition spiral tube 7 threadedly connected to the return pipe 9, the remaining three second transition spiral tubes 7 are all threadedly connected to the second sealing cover 12 to ensure the conveying effect of a single channel during the use of the return pipe 9;

[0042] The blind plate 1 is composed of a first assembled blind plate body 101 and a second assembled blind plate body 102. A threaded hole is provided in the rear end of the first assembled blind plate body 101, and a countersunk hole aligned with the threaded hole is provided in the second assembled blind plate body 102. An assembly screw 13 that can be threadedly connected to the threaded hole is set in the countersunk hole. The end face of one end of the assembly screw 13 is coplanar with the rear end surface of the second assembled blind plate body 102, thereby providing disassembly and cleaning conditions for subsequent blockage problems. Both ends of the plurality of mounting holes 10 respectively penetrate the first assembled blind plate body 101, a second assembled blind plate body 102, the front ends of the four first guide grooves 4 are all opened on the rear end of one side of the first assembled blind plate body 101, the rear ends of the four first guide grooves 4 are all opened on the front end of one side of the second assembled blind plate body 102, the front ends of the four second guide grooves 5 are all opened on the rear end of the other side of the first assembled blind plate body 101, the rear ends of the four second guide grooves 5 are all opened on the front end of the other side of the second assembled blind plate body 102, and each structure is installed with the first assembled blind plate body 101 and the second assembled blind plate body 102 for adaptation.

[0043] Working principle: When in use, the blind plate 1 is installed with the existing pipeline to be tested, and a plurality of mounting holes 10 and the existing bolts can provide an installation condition. After the blind plate 1 is assembled with the existing pipeline to be tested, the water can be transported into the pipeline through the infusion pipe 8, the corresponding first guide groove 4, and the water outlet blind hole 2 by using a pumping device, and the water pressure in the pipeline is tested. The tested water will be refluxed through the return water blind hole 3, the corresponding second guide groove 5, and the return pipe 9;

[0044] When changing the operating positions of the infusion tube 8 and the return tube 9, the positions of the three first sealing covers 11 can be adjusted by twisting to free up another first transition spiral tube 6, and then the infusion tube 8 is threadedly connected to the free first transition spiral tube 6. Similarly, the positions of the three second sealing covers 12 can be adjusted by twisting to free up another second transition spiral tube 7, and then the return tube 9 is threadedly connected to the free second transition spiral tube 7. After completion, the above-mentioned operation steps can be repeated;

[0045] When the first guide groove 4 and the second guide groove 5 become blocked after a long time, the assembly screws 13 between the first assembled blind plate body 101 and the second assembled blind plate body 102 can be twisted and removed to separate the first assembled blind plate body 101 and the second assembled blind plate body 102. Then, the first guide groove 4 and the second guide groove 5 on the first assembled blind plate body 101 and the first guide groove 4 and the second guide groove 5 on the second assembled blind plate body 102 can be directly cleaned. After completion, the first assembled blind plate body 101 and the second assembled blind plate body 102 can be reset, assembled and locked using the assembly screws 13.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the fill pattern is only for distinguishing the layers, without any other limitation.

[0047] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blind plate for a hydraulic test of a process pipeline, comprising a blind plate (1), a liquid infusion pipe (8), and a return pipe (9), characterized in that: A water outlet blind hole (2) and a water return blind hole (3) are respectively provided on both sides of the front end of the blind plate (1), and a first guide groove (4) and a second guide groove (5) are respectively provided inside both sides of the blind plate (1), one end of the first guide groove (4) is connected to the water outlet blind hole (2), and the other end of the first guide groove (4) passes through the rear end structure on one side of the blind plate (1), and one end of the second guide groove (5) is connected to the water return blind hole (3), and the other end of the second guide groove (5) passes through the rear end structure on the other side of the blind plate (1); The two sides of the rear end of the blind plate (1) are respectively connected to a first transition spiral tube (6) aligned with and connected to the other end of the first guide groove (4) and a second transition spiral tube (7) aligned with and connected to the other end of the second guide groove (5); the inner side of one end of the infusion tube (8) is threadedly connected to the surface of the first transition spiral tube (6) and is fitted with the surface of the rear end of the blind plate (1); the inner side of one end of the return tube (9) is threadedly connected to the surface of the second transition spiral tube (7) and is fitted with the surface of the rear end of the blind plate (1).

2. The process pipeline water pressure test blind plate according to claim 1 is characterized by: A plurality of mounting holes (10) are disposed inside the blind plate (1), and the plurality of mounting holes (10) are distributed along the circumference of the blind plate (1).

3. The process pipeline water pressure test blind plate according to claim 1 is characterized by: The number of the first guide grooves (4) is the same as the number of the second guide grooves (5), and both are set to four. The four first guide grooves (4) are equidistantly distributed along the circumference of the water outlet blind hole (2), and the four second guide grooves (5) are equidistantly distributed along the circumference of the water return blind hole (3).

4. The process pipeline water pressure test blind plate according to claim 1 is characterized by: The number of the first transition spiral tubes (6) is four and they are installed on the rear end of the blind plate (1) in a manner of being aligned with the other ends of the four first guide grooves (4), respectively. In addition to the first transition spiral tube (6) threadedly connected to the infusion tube (8), the remaining three first transition spiral tubes (6) are all threadedly connected to the first sealing covers (11).

5. The process pipeline water pressure test blind plate according to claim 1 is characterized by: The number of the second transition spiral tubes (7) is four and they are installed on the rear end of the blind plate (1) in a manner of being aligned with the other ends of the four second guide grooves (5), respectively. In addition to the second transition spiral tube (7) threadedly connected to the return pipe (9), the remaining three second transition spiral tubes (7) are all threadedly connected to the second sealing covers (12).

6. The process pipeline water pressure test blind plate according to claim 2 is characterized by: The blind plate (1) is composed of a first assembled blind plate body (101) and a second assembled blind plate body (102); a threaded hole is provided in the rear end of the first assembled blind plate body (101); a countersunk hole aligned with the threaded hole is provided in the second assembled blind plate body (102); an assembly screw (13) capable of being threadedly connected to the threaded hole is installed in the countersunk hole; an end face of the assembly screw (13) is coplanar with the rear end surface of the second assembled blind plate body (102).

7. The process pipeline water pressure test blind plate according to claim 6 is characterized by: Both ends of the plurality of mounting holes (10) respectively penetrate the first assembly blind plate body (101) and the second assembly blind plate body (102); the front ends of the four first guide grooves (4) are arranged on the rear end of one side of the first assembly blind plate body (101); the rear ends of the four first guide grooves (4) are arranged on the front end of one side of the second assembly blind plate body (102); the front ends of the four second guide grooves (5) are arranged on the rear end of the other side of the first assembly blind plate body (101); and the rear ends of the four second guide grooves (5) are arranged on the front end of the other side of the second assembly blind plate body (102).

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