Detachable wedge-shaped flow meter

Abstract

The utility model relates to the technical field of flow meters, and discloses a detachable wedge-shaped flow meter which comprises a measuring pipeline, flange plates, a mounting box, a box cover, a fixing bolt, a high-pressure pressure tapping and a low-pressure pressure tapping, the flange plates are fixedly connected to the two ends of the measuring pipeline, the mounting box is mounted outside the measuring pipeline, and the box cover is mounted on the mounting box. The box cover is arranged at the top of the mounting box, the fixing bolt penetrates through the mounting box to fix the Lina usherette, the high-pressure pressure tap is arranged at one end of the top of the measuring pipeline, and the low-pressure pressure tap is arranged at the other end of the top of the measuring pipeline. According to the detachable wedge-shaped flow meter, through installation of the installation box and the box cover, the extrusion block is installed above the wedge-shaped installation opening, after the wedge-shaped block is installed in the wedge-shaped installation opening, the extrusion block is used for pressing and fixing the wedge-shaped block, the fixing effect is guaranteed, it is guaranteed that the installation box and the box cover are firmly fixed through the fixing bolts, and meanwhile the two fixing bolts are convenient to detach.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a detachable wedge-shaped flow meter. Background Art

[0002] The wedge flowmeter is a new type of throttling differential pressure flow measuring instrument. The working principle of the wedge flowmeter is based on the differential pressure principle. When the fluid passes through the wedge flowmeter, due to the throttling effect of the wedge block, a differential pressure is generated on its upstream and downstream sides in a square relationship with the flow value. By measuring this differential pressure and sending it to the differential pressure transmitter to convert it into an electrical signal output, and then calculating it through a dedicated intelligent flow calculator, the flow value can be obtained.

[0003] According to the authorization announcement number CN211877133U, a detachable wedge flowmeter is disclosed, which relates to the technical field of flowmeters. In the prior art, the wedge block of the wedge flowmeter will be impacted by the fluid in the pipeline for a long time, and the fluid is often corrosive, so the wedge block will often wear out during long-term use, resulting in errors in the measurement process of the wedge flowmeter. The above scheme includes a measuring tube, and the side wall of the measuring tube is provided with a positive pressure tube and a negative pressure tube located on the same side of the measuring tube, and a wedge component is provided between the positive pressure tube and the negative pressure tube, which is inserted from the outside of the measuring tube wall to the inside of the measuring tube wall. The wedge component is detachably connected to the measuring tube, and the wedge component includes a wedge block, and the extension line of the length direction of the wedge block is perpendicular to the axis of the measuring tube. The above scheme has the function of facilitating the replacement of the wedge block in the wedge flowmeter and improving the measurement accuracy of the wedge flowmeter.

[0004] However, the above device still has shortcomings. By introducing a replaceable wedge block design, the convenience of maintenance is significantly improved. However, the current wedge block relies on multiple sets of screws for fastening, which consumes a lot of time during the disassembly process. This undoubtedly restricts the efficiency of rapid replacement and installation, and needs to be optimized to improve operational efficiency. Utility Model Content

[0005] The purpose of the present utility model is to provide a detachable wedge-shaped flow meter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a detachable wedge-shaped flowmeter, comprising a measuring pipe, a flange, an installation box, a box cover, a fixing bolt, a high-pressure pressure port and a low-pressure pressure port, wherein the flange is fixedly connected to both ends of the measuring pipe, the installation box is installed on the outside of the measuring pipe, the box cover is arranged on the top of the installation box, the fixing bolt passes through the installation box and is fixedly connected, the high-pressure pressure port is arranged at one end of the top of the measuring pipe, and the low-pressure pressure port is arranged at the other end of the top of the measuring pipe.

[0007] Preferably, the measuring pipe comprises a pipe body and a wedge-shaped mounting opening, and the wedge-shaped mounting opening is opened in the middle of the top of the pipe body.

[0008] Preferably, the installation box includes a box body, a fixing hole, a mounting hole and a snap-in groove, the fixing hole is opened inside the box body, the box body is fixedly connected to the outside of the measuring pipe, the mounting holes are opened on both sides of the fixing hole, the snap-in groove is opened inside the box body, and the fixing bolt is installed through the mounting hole.

[0009] Preferably, the box cover includes a plate body, a snap-fit frame, a through hole and an extrusion block, the snap-fit frame is fixedly connected to the bottom of the plate body, the through hole is opened inside the snap-fit frame, the extrusion block is fixedly connected to the inner side of the snap-fit frame, and the snap-fit frame is snap-connected to the top of the snap-fit groove.

[0010] Preferably, the fixing bolt passes through the mounting hole and the through hole to fix the mounting box and the box cover, thereby achieving the effect of quick installation and disassembly.

[0011] Preferably, the extrusion block is located above the wedge-shaped mounting opening. By installing the mounting box and the box cover, the extrusion block is installed above the wedge-shaped mounting opening. After the wedge block is installed in the wedge-shaped mounting opening, the extrusion block is used to press down and fix the wedge block to ensure the fixing effect.

[0012] Preferably, a sealing strip is provided on the outer side of the snap-fit frame to ensure a sealing effect of the connection between the installation box and the box cover.

[0013] Preferably, a handle is provided on the top of the plate body, and there are two handles. The two handles facilitate lifting the box cover and replacing the wedge block.

[0014] Preferably, there are two fixing bolts, which are respectively arranged on both sides of the top of the installation box. The two fixing bolts ensure that the installation box and the box cover are firmly fixed, and the two fixing bolts are also convenient for disassembly.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The detachable wedge flowmeter is installed by installing the mounting box and the box cover so that the extrusion block is installed above the wedge mounting opening. After the wedge block is installed in the wedge mounting opening, the extrusion block is used to press the wedge block down to ensure the fixing effect.

[0017] 2. The detachable wedge-shaped flowmeter ensures that the installation box and the box cover are firmly fixed by fixing bolts, and the two fixing bolts are also easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the measuring pipeline of the utility model;

[0020] Figure 3 This is a structural diagram of the installation box of the utility model;

[0021] Figure 4 It is a structural diagram of the box cover of the present utility model.

[0022] In the figure: 1. Measuring pipe; 2. Flange; 3. Mounting box; 4. Box cover; 5. Fixing bolt; 6. High-pressure pressure port; 7. Low-pressure pressure port; 101. Pipe body; 102. Wedge-shaped mounting port; 301. Box body; 302. Fixing hole; 303. Mounting hole; 304. Snap-in groove; 401. Plate body; 402. Snap-in frame; 403. Through hole; 404. Extrusion block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 The utility model provides a technical solution: a detachable wedge flowmeter, including a measuring pipe 1, a flange 2, an installation box 3, a box cover 4, a fixing bolt 5, a high-pressure pressure port 6 and a low-pressure pressure port 7, the flange 2 is fixedly connected to both ends of the measuring pipe 1, the installation box 3 is installed on the outside of the measuring pipe 1, the box cover 4 is arranged on the top of the installation box 3, the fixing bolt 5 passes through the installation box 3 and is fixedly connected, the high-pressure pressure port 6 is arranged at one end of the top of the measuring pipe 1, and the low-pressure pressure port 7 is arranged at the other end of the top of the measuring pipe 1.

[0025] The measuring pipe 1 includes a pipe body 101 and a wedge-shaped mounting opening 102. The wedge-shaped mounting opening 102 is opened in the middle of the top of the pipe body 101. The shape of the wedge-shaped mounting opening 102 is an inverted triangle, which is consistent with the size of the wedge block, making it convenient for installation while ensuring installation fit and avoiding flow leakage.

[0026] The installation box 3 includes a box body 301, a fixing hole 302, a mounting hole 303 and a clamping groove 304. The fixing hole 302 is opened inside the box body 301, and the box body 301 is fixedly connected to the outside of the measuring pipe 1. The mounting holes 303 are opened on both sides of the fixing hole 302, and the clamping groove 304 is opened inside the box body 301. The fixing bolt 5 is installed through the mounting hole 303. The installation box 3 is made of stainless steel and has good sturdiness. It can ensure stable and safe use and effectively protect the wedge block.

[0027] The box cover 4 includes a plate body 401, a snap-fit frame 402, a through hole 403 and an extrusion block 404. The snap-fit frame 402 is fixedly connected to the bottom of the plate body 401. The through hole 403 is opened inside the snap-fit frame 402. The extrusion block 404 is fixedly connected to the inner side of the snap-fit frame 402. The snap-fit frame 402 is snap-fitted to the top of the snap-fit groove 304. The extrusion block 404 is located above the wedge-shaped mounting opening 102. By installing the box 3 and the box cover 4, the extrusion block 404 is installed above the wedge-shaped mounting opening 102. After the wedge block is installed in the wedge-shaped mounting opening 102, the extrusion block 404 is used to push the wedge block down. Press and fix to ensure the fixing effect. A sealing strip is provided on the outside of the snap-fit frame 402 to ensure the connection and sealing effect between the installation box 3 and the box cover 4. A handle is provided on the top of the plate body 401. There are two handles. The two handles are convenient for lifting the box cover 4 and replacing the wedge block. The size of the plate body 401 is consistent with the size of the box body 301 to ensure the fixed fit between the plate body 401 and the box body 301. The bottom of the extrusion block 404 is fixedly connected to the bottom of the plate body 401, so that the fixation of the plate body 401 and the box body 301 can ensure that the extrusion block 404 firmly fixes the wedge block.

[0028] The fixing bolts 5 pass through the mounting hole 303 and the through hole 403 to fix the mounting box 3 and the box cover 4, thereby achieving the effect of quick installation and disassembly. There are two fixing bolts 5, which are respectively arranged on both sides of the top of the mounting box 3. The two fixing bolts 5 ensure that the mounting box 3 and the box cover 4 are firmly fixed. At the same time, the two fixing bolts 5 are also convenient for disassembly.

[0029] When in use, the device is connected to the flow tube through the flange 2, and then the wedge block is installed at the wedge-shaped installation port 102, and then the box cover 4 is used to fix the wedge block, so that the installation box 3 and the box cover 4 are closed, and then the installation box 3 and the box cover 4 are fixed with the fixing bolt 5, and the high-pressure pressure port 6 and the low-pressure pressure port 7 are respectively connected to the measuring instrument to realize flow monitoring. Similarly, the wedge block can be quickly disassembled and replaced, which is very convenient.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable wedge-shaped flowmeter, comprising a measuring pipe (1), a flange (2), a mounting box (3), a box cover (4), a fixing bolt (5), a high-pressure port (6) and a low-pressure port (7), characterized in that: The flange (2) is fixedly connected to both ends of the measuring pipe (1), the installation box (3) is installed on the outside of the measuring pipe (1), the box cover (4) is arranged on the top of the installation box (3), the fixing bolt (5) passes through the installation box (3) and is fixedly connected, the high-pressure pressure port (6) is arranged at one end of the top of the measuring pipe (1), and the low-pressure pressure port (7) is arranged at the other end of the top of the measuring pipe (1).

2. A detachable wedge-shaped flowmeter according to claim 1, characterized in that: The measuring pipe (1) comprises a pipe body (101) and a wedge-shaped installation opening (102), wherein the wedge-shaped installation opening (102) is opened in the middle of the top of the pipe body (101).

3. The detachable wedge-shaped flowmeter according to claim 1, characterized in that: The installation box (3) comprises a box body (301), a fixing hole (302), a mounting hole (303) and a clamping groove (304); the fixing hole (302) is provided inside the box body (301); the box body (301) is fixedly connected to the outside of the measuring pipe (1); the mounting holes (303) are provided on both sides of the fixing hole (302); and the clamping groove (304) is provided inside the box body (301).

4. A detachable wedge-shaped flowmeter according to claim 1, characterized in that: The box cover (4) comprises a plate body (401), a snap-fit frame (402), a through hole (403) and an extrusion block (404); the snap-fit frame (402) is fixedly connected to the bottom of the plate body (401); the through hole (403) is opened inside the snap-fit frame (402); the extrusion block (404) is fixedly connected to the inner side of the snap-fit frame (402); and the snap-fit frame (402) is snap-fitted to the top of the snap-fit groove (304).

5. The detachable wedge-shaped flowmeter according to claim 1, characterized in that: The fixing bolt (5) passes through the mounting hole (303) and the through hole (403).

6. The detachable wedge-shaped flowmeter according to claim 4, characterized in that: The extrusion block (404) is located above the wedge-shaped installation opening (102).

7. The detachable wedge-shaped flowmeter according to claim 4, characterized in that: A sealing strip is provided on the outer side of the snap-fit frame (402).

8. The detachable wedge-shaped flowmeter according to claim 4, characterized in that: The top of the plate body (401) is provided with a handle, and the number of the handles is two.

9. The detachable wedge-shaped flowmeter according to claim 1, characterized in that: There are two fixing bolts (5), which are respectively arranged on both sides of the top of the installation box (3).

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