Gas flow measuring device

Abstract

The utility model relates to the technical field of flow measurement, and provides a gas flow measuring device which comprises a connecting pipe, and flange plates are arranged at the two ends of the connecting pipe. The alignment mechanism comprises two sleeves which are arranged on the two sides of the connecting base in a sliding and sleeving mode respectively, the ends of the sleeves are provided with threaded parts, the threaded parts abut against the side wall of the flange plate, and the threaded parts are used for being connected with bolts. The two sliding blocks are arranged in the sleeves on the two sides in a sliding mode respectively. Each sliding block is provided with a positioning pipe, and the positioning pipes on the two sides penetrate through the through holes in the two sides correspondingly. Two supporting assemblies are arranged in each positioning pipe in the axis direction, each supporting assembly is provided with at least two supporting columns in the circumferential direction, and the supporting columns are movably arranged on the positioning pipes in the radial direction of the positioning pipes. By means of the technical scheme, the problems that when an existing flow measuring device is installed, fast alignment cannot be achieved, and use is inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of flow measurement technology, and in particular to a gas flow measurement device. Background Technology

[0002] Gas flow measurement devices can measure the gas flow rate in pipelines and are widely used in various industries.

[0003] In existing measuring devices, the flow meter is typically installed on a connecting pipe. Flanges are installed on both axial sides of the connecting pipe to connect with the gas pipeline. The pipeline is also equipped with flanges, and bolts are used to tighten the connection through the flange holes, making the connection convenient and more stable. However, in actual operation, the two flanges on the gas pipeline cannot be guaranteed to be perfectly aligned. That is, the flange on the connecting pipe needs to be completely aligned with the pipeline flange before being tightened with bolts. This alignment requires manually lifting the measuring device to connect with the pipeline, which is time-consuming and labor-intensive, and the alignment effect cannot be guaranteed. Furthermore, if there is a significant misalignment between the flange on the pipeline and the flange on the connecting pipe, adjustments are necessary.

[0004] The existing flow measurement devices have problems such as not being able to be quickly aligned during installation and being inconvenient to use, which need to be solved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a gas flow measurement device that addresses the above-mentioned technical deficiencies. This device solves the problem that existing flow measurement devices cannot be quickly aligned during installation and are inconvenient to use.

[0006] The technical solution adopted by this utility model is as follows: A gas flow measurement device is provided, including a connecting pipe, a flow meter is installed on the connecting pipe, and flanges are provided at both ends of the connecting pipe, with several through holes on the flanges; characterized in that it further includes an alignment mechanism, the alignment mechanism comprising:

[0007] A connecting seat is located between the two flanges;

[0008] The sleeve has two sleeves, which are slidably fitted on both sides of the connecting seat. The ends of the sleeves have threaded portions with internal threads. The threaded portions abut against the side wall of the flange and are used for bolt connection.

[0009] The slider has two sliders, which are respectively slidably disposed inside the sleeves on both sides;

[0010] The positioning tube has two parts, and each slider is provided with one positioning tube. After the positioning tube slides with the slider, it moves from inside the sleeve to outside the sleeve. The positioning tubes on both sides pass through the through holes on both sides respectively.

[0011] The support column is provided in several ways. Each positioning tube has two sets of support components arranged along the axial direction. Each set of support components has at least two support columns in the circumferential direction. The support columns are moved and arranged on the positioning tube in the radial direction. After the support column in one set of support components moves to the outside of the positioning tube, it is used to abut against the side wall of the through hole. The support column in the other set of support components is used to abut against the inner wall of the connection hole on the flange of the pipeline to be connected.

[0012] To further optimize this technical solution, the connecting seat has a raised edge in the middle, and the alignment mechanism further includes:

[0013] Two first compression springs are respectively sleeved on both sides of the connecting seat. One end of the first compression spring acts on the flange and the other end acts on the sleeve to provide pressure for the threaded part to abut against the side wall of the flange.

[0014] To further optimize this technical solution, the alignment mechanism also includes:

[0015] There are two second compression springs, which are respectively disposed in the two sleeves. One end of the second compression spring acts on the end of the connecting seat, and the other end acts on the slider, so as to provide a thrust for the positioning tube to move to the outside of the sleeve.

[0016] To further optimize this technical solution, a set of support components includes two support columns, and the positioning tube has a guide tube in the radial direction. The support component also includes:

[0017] A third compression spring is disposed inside the guide tube, with one end acting on one of the support columns and the other end acting on the other support column, for providing a thrust to move the support column to the outside of the positioning tube.

[0018] To further optimize this technical solution, the end of the positioning tube has a groove, which is parallel to the axial direction of the guide tube.

[0019] To further optimize this technical solution, the alignment mechanism is provided in several groups, and these groups of alignment mechanisms are distributed along the circumferential direction of the connecting pipe.

[0020] To further optimize this technical solution, the sleeve has a retaining ring on its outside, which engages with a bolt for threaded connection with the threaded portion.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. The alignment mechanism can assist in aligning the flanges on the connecting pipes and the pipeline flanges without the need for manual operation. The alignment is accurate, easy to adjust, and convenient to use.

[0023] 2. After the alignment mechanism achieves alignment, bolts are used for connection, making installation more convenient and faster. There is no need to hold it by hand to maintain alignment, and it is not easy to misalign. The bolts pass through the flange and the threaded part for threaded connection to achieve locking, making it convenient and quick to use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connecting pipe structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the alignment mechanism installation structure of this utility model;

[0026] Figure 3 This is a front view structural diagram of the present invention;

[0027] Figure 4 For the present utility model Figure 3 Schematic diagram of the cross-sectional structure at position AA;

[0028] Figure 5 For the present utility model Figure 4 A magnified schematic diagram of the structure at point a in the middle;

[0029] Figure 6 This is a schematic diagram of the alignment mechanism structure of this utility model;

[0030] Figure 7 For the present utility model Figure 6 A magnified schematic diagram of the structure at point b in the middle;

[0031] The markings in the diagram are as follows: 1. Connecting pipe; 101. Flow meter; 102. Flange; 1021. Through hole; 103. Guide pipe; 2. Alignment mechanism; 3. Connecting seat; 301. Raised edge; 302. First compression spring; 4. Sleeve; 401. Threaded part; 402. Second compression spring; 403. Snap ring; 5. Sliding block; 6. Positioning tube; 601. Groove; 7. Support assembly; 701. Support column; 702. Third compression spring. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0034] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] like Figure 1-7As shown, a gas flow measurement device includes a connecting pipe 1, on which a flow meter 101 is mounted. Both ends of the connecting pipe 1 have flanges 102, each flange 102 having several through holes 1021. The device also includes an alignment mechanism 2, comprising: a connecting seat 3 located between the two flanges 102; two sleeves 4, each slidably mounted on both sides of the connecting seat 3, each sleeve 4 having a threaded portion 401 with internal threads, the threaded portion 401 abutting against the sidewall of the flange 102, the threaded portion 401 being used for bolt connection; two sliders 5, each slidably mounted within the sleeves 4 on both sides; and a positioning tube 6. Two, each slider 5 is provided with a positioning tube 6. After the positioning tube 6 slides with the slider 5, it moves from inside the sleeve 4 to outside the sleeve 4. The positioning tubes 6 on both sides pass through the through holes 1021 on both sides respectively. There are several support columns 701. Two sets of support components 7 are provided in each positioning tube 6 along the axial direction. Each set of support components 7 has at least two support columns 701 along the circumferential direction. The support columns 701 are moved and set on the positioning tube 6 along the radial direction. After the support column 701 in one set of support components 7 moves to the outside of the positioning tube 6, it is used to abut against the side wall of the through hole 1021. The support column 701 in the other set of support components 7 is used to abut against the inner wall of the connection hole on the flange of the pipeline to be connected. The connecting seat 3 has a raised edge 301 in the middle. The alignment mechanism 2 also includes two first compression springs 302, which are respectively sleeved on both sides of the connecting seat. One end of the first compression spring 302 acts on the raised edge 301, and the other end acts on the sleeve 4, providing pressure for the threaded part 401 to abut against the side wall of the flange 102. The alignment mechanism 2 also includes two second compression springs 402, which are respectively disposed in the two sleeves 4. One end of the second compression spring 402 acts on the end of the connecting seat 3, and the other end acts on the slider 5, providing thrust for the positioning tube 6 to move to the outside of the sleeve 4. A set of support components 7 includes two support columns 701. The positioning tube 6 has a guide tube 103 in the radial direction. The support component 7 also includes a third compression spring 702, which is disposed in the guide tube 103. One end acts on one support column 701, and the other end acts on the other support column 701, providing thrust for the support column 701 to move to the outside of the positioning tube 6. The alignment mechanism has several groups, which are distributed along the circumferential direction of the connecting pipe 1.

[0037] In use, the flanges 102 on both sides of the connecting pipe 1 are connected to the pipeline flanges on both sides of the disconnection position on the gas pipeline. The through holes 1021 on the flange 102 are aligned with the connecting holes on the pipeline flanges, and bolts are connected through the connecting holes and through holes 1021. First, the alignment mechanism 2 is installed on the connecting pipe 1. The alignment mechanism 2 is located between the two flanges 102. The positioning pipes 6 on the left and right sides pass through the corresponding through holes 1021 on both sides. In a set of support components 7 located on the inner side, the support column 701 abuts against the inner wall of the through hole 1021 of the flange 102, so that the positioning pipe 6 and the through hole 1021 are coaxial. Then, the connecting pipe 1 is installed between the two pipe flanges. When it enters the space between the two pipe flanges, the positioning pipe 6 retracts into the sleeve 4 and into the through hole 1021. When the through hole 1021 and the connection hole of the pipe flange are aligned, the positioning pipe 6 can automatically pop out under the action of the second compression spring 402. The end of the positioning pipe 6 is inserted into the connection hole, and the outer set of support components 7, under the action of the third compression spring 702, has two support columns 701 abutting in the connection hole. The positioning pipe 6 and the connection hole are coaxial. At this time, the inner set of support components 7, with two support columns 701 abutting in the through hole 1021, realizes the alignment of the through hole 1021 and the connection hole. After the flange 102 and the pipe flange are aligned, bolts can be used for connection.

[0038] The bolt abuts against the end of the positioning tube 6 from the side of the pipeline flange and moves toward the flange 102, pushing the positioning tube 6 into the sleeve 4 until the positioning tube 6 enters the sleeve 4. Then the bolt is threaded into the threaded part 401 to achieve locking. The bolts are used to lock the connection at each through hole 1021 in sequence. During connection, the alignment mechanism 2 keeps the flange 102 and the pipeline flange aligned, and there is no need to hold the positioning connection tube 1 by hand.

[0039] Two first compression springs 302 act on the sleeves 4 on both sides respectively, which can keep the two threaded parts 401 abutting against the inner sidewalls of the flanges 102 on both sides respectively. The two sleeves 4 and the connecting seat 3 are slidably sleeved, which is convenient to adapt to the farads with different intervals and can ensure that the threaded parts 401 abut against the flanges 102, making the bolt locking more stable.

[0040] Two second compression springs 402 act on the sliders 5 on both sides respectively, so that the sliders 5 and the positioning tube 6 can extend and retract on the sleeve 4.

[0041] In this embodiment, the two support columns 701 are telescopic via the third compression spring 702, and a "V"-shaped spring sheet structure can also be used. To improve the coaxiality of the positioning tube 6 and the through hole 1021, support columns 701 can be added in the circumferential direction, for example, three or more support columns 701 can be set at equal intervals along the ring, resulting in higher coaxiality.

[0042] When a large number of measuring devices need to be installed and used in industrial equipment, the alignment mechanism 2 makes installation more convenient and faster.

[0043] Furthermore, the end of the positioning tube 6 has a groove 601, which is parallel to the axial direction of the guide tube 103.

[0044] When in use, the groove 601 opened at the outer end of the positioning tube 6 makes it easy to adjust the support direction of the support column 701 by inserting a flathead screwdriver or the like into the groove 601 when a set of support components 7 contains two support columns 701. For example, it can be rotated to the radial direction of the through hole 1021 or to the vertical direction to improve coaxiality.

[0045] The end of the positioning tube 6 can be chamfered or narrowed to facilitate insertion into the through hole 1021 and the connecting hole.

[0046] Furthermore, the sleeve 4 has a retaining ring 403 on the outside, which engages with a bolt for threaded connection with the threaded portion 401.

[0047] In use, two bolts can be fitted to the two retaining rings 403 on the two sleeves 4 of the alignment structure for locking connection, making it more convenient to carry. The retaining ring 403 can be a "C" type snap-fit ​​structure or a ring structure. The retaining ring 403 can also have internal threads for bolt connection, making it more stable to carry and preventing it from falling.

[0048] It is understood that this utility model has been described through some embodiments, and those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A gas flow measurement device, comprising a connecting pipe (1), wherein a flow meter (101) is disposed on the connecting pipe (1), and both ends of the connecting pipe (1) have flanges (102), wherein the flanges (102) have a plurality of through holes (1021); characterized in that, It also includes a alignment mechanism (2), which comprises: A connecting seat (3) is located between the two flanges (102); The sleeve (4) has two sleeves, which are slidably fitted on both sides of the connecting seat (3). The end of the sleeve (4) has a threaded part (401), which has an internal thread. The threaded part (401) abuts against the side wall of the flange (102) and is used for bolt connection. Two sliders (5) are provided, and the two sliders (5) are respectively slidably disposed in the sleeves (4) on both sides; There are two positioning tubes (6), and each slider (5) is provided with a positioning tube (6). After the positioning tube (6) slides with the slider (5), it moves from inside the sleeve (4) to outside the sleeve (4). The positioning tubes (6) on both sides pass through the through holes (1021) on both sides respectively. There are several support columns (701). Each positioning tube (6) has two sets of support components (7) arranged along the axial direction. Each set of support components (7) has at least two support columns (701) along the circumferential direction. The support columns (701) are moved and arranged on the positioning tube (6) along the radial direction. After the support column (701) in one set of support components (7) moves to the outside of the positioning tube (6), it is used to abut against the side wall of the through hole (1021). The support column (701) in the other set of support components (7) is used to abut against the inner wall of the connection hole on the flange of the pipeline to be connected.

2. The gas flow measuring device according to claim 1, characterized in that, The connecting seat (3) has a raised edge (301) in the middle, and the alignment mechanism (2) further includes: Two first compression springs (302) are respectively sleeved on both sides of the connecting seat (3). One end of the first compression spring (302) acts on the flange (301) and the other end acts on the sleeve (4) to provide pressure for the threaded part (401) to abut against the side wall of the flange (102).

3. The gas flow measuring device according to claim 1, characterized in that, The alignment mechanism (2) further includes: There are two second compression springs (402), which are respectively disposed in the two sleeves (4). One end of the second compression spring (402) acts on the end of the connecting seat (3) and the other end acts on the slider (5) to provide a thrust for the positioning tube (6) to move to the outside of the sleeve (4).

4. The gas flow measuring device according to claim 1, characterized in that, A set of the support components (7) includes two support columns (701), and the positioning tube (6) has a guide tube (103) in the radial direction. The support components (7) also include: The third compression spring (702) is disposed inside the guide tube (103), with one end acting on one of the support columns (701) and the other end acting on the other support column (701), for providing the thrust for the support column (701) to move to the outside of the positioning tube (6).

5. A gas flow measuring device according to claim 4, characterized in that, The end of the positioning tube (6) has a groove (601) that is parallel to the axial direction of the guide tube (103).

6. A gas flow measuring device according to claim 1, characterized in that, The alignment mechanism (2) has several groups, and the several groups of alignment mechanisms (2) are distributed along the circumferential direction of the connecting pipe (1).

7. A gas flow measuring device according to claim 1, characterized in that, The sleeve (4) has a retaining ring (403) on the outside, which engages with a bolt for threaded connection with the threaded portion (401).

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