Differential pressure flowmeter convenient to install

Abstract

The utility model discloses a differential pressure flowmeter convenient to install, which belongs to the technical field of flow measurement and comprises a metering pipeline, two ends of the metering pipeline are respectively and movably connected with two water delivery pipelines, connecting mechanisms are sleeved at joints of the metering pipeline and the water delivery pipelines, and each connecting mechanism comprises a lantern ring. The number of the lantern rings is two, and the lantern rings are designed to be semicircular. According to the differential pressure flowmeter convenient to install, by arranging the connecting mechanism and the clamping mechanism, two lantern rings are connected to the joint of a metering pipeline and a water conveying pipeline in a sleeving mode, then a screw rod is rotated into clamping grooves in the centers of two opposite clamping blocks, the clamping blocks are rotated, the clamping blocks move on the outer wall of the screw rod to extrude one of the clamping blocks, and the two lantern rings are fixed; complex connecting parts such as a large number of bolts do not need to be prepared, the installation process is simplified, meanwhile, installation operation is simpler, more convenient and faster, the installation time can be effectively shortened, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of flow measurement technology, specifically a differential pressure flow meter that is easy to install. Background Technology

[0002] In many industrial sectors, such as chemical, petroleum, natural gas, and water treatment, accurate measurement of fluid flow rate is one of the key factors in ensuring the efficient, safe, and stable operation of the production process. Flow measurement data helps monitor material balance in the production process, ensure product quality, optimize energy use, and comply with environmental regulations, among other goals. Traditional differential pressure flow meters are usually installed using flange connections, which requires a large number of bolts to ensure the connection is secure. Before actual installation, a sufficient number of bolts need to be prepared precisely. For example, for pipe connections with larger diameters, dozens of bolts may be required. On the construction site, these bolts need to be accurately obtained and their quality and model must be ensured. This requires a lot of manpower and time for counting, inspection, and classification, which is inconvenient and affects construction efficiency. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a differential pressure flow meter that is easy to install. It solves the problem that traditional differential pressure flow meters usually use flange connections during installation, which requires a large number of bolts to ensure the connection is firm. Before actual installation, a sufficient number of bolts need to be prepared accurately, which consumes a lot of manpower and time for counting, inspection and classification, making operation inconvenient and affecting construction efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a differential pressure flow meter that is easy to install, comprising a metering pipe, two water supply pipes being movably connected to both ends of the metering pipe, a connecting mechanism being sleeved at the connection between the metering pipe and the water supply pipes, the connecting mechanism comprising collars, the collars being semi-circular in design and numbering two, two connecting blocks being fixedly connected to adjacent ends of the two collars, a connecting shaft being rotatably connected between the inner walls of the two connecting blocks, two snap-fit ​​blocks being fixedly connected to the other ends of the two connecting blocks, a snap-fit ​​groove being provided on one side of the snap-fit ​​block, a snap-fit ​​mechanism being fixedly installed on one side of one of the snap-fit ​​blocks, the snap-fit ​​mechanism comprising fixing blocks, two fixing blocks being fixedly installed on one side of the snap-fit ​​block, a rotating shaft being rotatably connected between the two fixing blocks, a screw being fixedly connected to one side of the rotating shaft, a baffle being fixedly installed at the end of the screw, and a snap-fit ​​block being threadedly connected to the outer wall of the screw.

[0005] As a further embodiment of this utility model: two sets of positioning grooves are respectively opened at both ends of the metering pipe, and each set of positioning grooves is evenly and equidistantly distributed.

[0006] As a further embodiment of this utility model: a number of positioning blocks are fixedly connected to one side of the water supply pipe, and the positions of the positioning blocks correspond to the positions of each group of positioning slots.

[0007] As a further embodiment of this utility model: an orifice plate is fixedly installed at the center of the metering pipe, and two pressure tapping holes are respectively opened on both sides of the orifice plate above the metering pipe.

[0008] As a further embodiment of this utility model: a support bracket is fixedly installed above the metering pipe, and a differential pressure sensor is fixedly installed between the inner walls of the support bracket.

[0009] As a further embodiment of this utility model: two connecting pipes are symmetrically fixedly installed below the differential pressure sensor, and the two connecting pipes are respectively connected to two pressure tapping holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This easy-to-install differential pressure flow meter, through the setting of a connection mechanism and a snap-fit ​​mechanism, allows for the installation of two collars. During installation, two connecting blocks rotate at both ends of the connecting shaft, fitting onto the connection between the metering pipe and the water supply pipe. At this point, the two snap-fit ​​blocks are facing each other. Rotating the screw causes it to rotate into the snap-fit ​​groove at the center of the two opposing snap-fit ​​blocks. Rotating the snap-fit ​​blocks causes them to move against the outer wall of the screw under the action of the threads, pressing one of the snap-fit ​​blocks to fix the two collars, thus completing the connection between the water supply pipe and the metering pipe. This method eliminates the need for numerous bolts and other complex connecting components, simplifying the installation process. Furthermore, the installation operation is more convenient and faster, effectively shortening installation time and improving installation efficiency.

[0012] 2. This easy-to-install differential pressure flow meter, through the setting of a metering pipe, a water delivery pipe, a positioning groove, and a positioning block, allows for easy installation. When installing the flow meter, align the positioning groove of the metering pipe with the positioning block of the water delivery pipe for connection. After initial alignment, gently push the metering pipe to slide the positioning block into the positioning groove, ensuring the positioning block is fully embedded. At this point, the cooperation between the positioning groove and the positioning block initially fixes the relative positions of the metering pipe and the water delivery pipe. This method significantly shortens installation time, eliminating the need for operators to spend considerable time precisely adjusting the connection position; simply aligning the positioning groove and the positioning block is sufficient. Furthermore, when the positioning block is engaged in the positioning groove, it prevents rotation of the water delivery pipe or the metering pipe, ensuring connection stability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2This is a cross-sectional structural diagram of the metering pipeline of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0017] Figure 5 This is a schematic diagram of the connection between the water supply pipeline and the positioning block of this utility model;

[0018] In the diagram: 1. Metering pipe; 2. Water supply pipe; 3. Connecting mechanism; 301. Collar; 302. Connecting block; 303. Connecting shaft; 304. Snap-fit ​​block; 305. Snap-fit ​​groove; 4. Snap-fit ​​mechanism; 401. Fixing block; 402. Rotating shaft; 403. Screw; 404. Baffle; 405. Snap-fit ​​block; 5. Positioning groove; 6. Positioning block; 7. Orifice plate; 8. Pressure tapping hole; 9. Support bracket; 10. Differential pressure sensor; 11. Connecting pipe. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figure 1-5 As shown, this utility model provides a technical solution: a differential pressure flow meter that is easy to install, including a metering pipe 1, with an orifice plate 7 fixedly installed at the center of the metering pipe 1. Because of the orifice plate 7, the fluid passing through the metering pipe 1 can be throttled, thereby creating a pressure difference before and after the orifice plate 7. This throttling principle based on the orifice plate 7 is simple and effective. Furthermore, the design of the orifice plate 7 has been precisely calculated and optimized to adapt to measurement requirements of different flow ranges. Simultaneously, the installation position of the orifice plate 7 at the center of the metering pipe 1 ensures the proper flow pattern of the fluid when passing through the orifice plate 7. The measurement is relatively stable, reduces measurement errors, and improves measurement accuracy. Two pressure taps 8 are opened on both sides of the orifice plate 7 above the metering pipe 1. Because of the pressure taps 8, the two pressure taps are located on both sides of the orifice plate 7, which can accurately obtain the pressure values ​​before and after the orifice plate 7, providing an accurate data source for subsequent flow calculation. A support bracket 9 is fixedly installed above the metering pipe 1. A differential pressure sensor 10 is fixedly installed between the inner walls of the support bracket 9. Two connecting pipes 11 are symmetrically fixedly installed below the differential pressure sensor 10. The two connecting pipes 11 are respectively connected to the two pressure taps 8.

[0021] Two water supply pipes 2 are movably connected to both ends of the metering pipe 1. A connecting mechanism 3 is fitted at the connection between the metering pipe 1 and the water supply pipe 2. The connecting mechanism 3 includes two collars 301. Because of the connecting mechanism 3, the two semi-circular collars 301 can be quickly wrapped around the connection between the water supply pipe 2 and the metering pipe 1, greatly shortening the installation time. The collars 301 are semi-circular and there are two of them. Two connecting blocks 302 are fixedly connected to the adjacent ends of the two collars 301. A connecting shaft 303 is rotatably connected between the inner walls of the two connecting blocks 302. Two snap-fit ​​blocks 304 are fixedly connected to the other end of the connecting block 302. A snap-fit ​​groove 305 is provided on one side of the snap-fit ​​block 304. A snap-fit ​​mechanism 4 is fixedly installed on one side of one of the snap-fit ​​blocks 304. The snap-fit ​​mechanism 4 includes two fixing blocks 401. The two fixing blocks 401 are fixedly installed on one side of the snap-fit ​​block 304. A rotating shaft 402 is rotatably connected between the two fixing blocks 401. A screw 403 is fixedly connected to one side of the rotating shaft 402. A baffle 404 is fixedly installed at the end of the screw 403. The outer wall of the screw 403... The threaded connection has a locking block 405. Because it has a locking mechanism 4, when the two collars 301 are fitted onto the connection between the metering pipe 1 and the water supply pipe 2, rotating the screw 403 causes it to lock into the locking grooves 305 of the two locking blocks 304. Then, rotating the locking block 405 presses one of the locking blocks 304, thus fixing the two collars 301 and achieving the connection between the metering pipe 1 and the water supply pipe 2. This connection is quick, stable, and simple to operate, requiring no complex tools or professional skills, effectively improving installation efficiency. Both ends of the metering pipe 1 are respectively... There are two sets of positioning slots 5, each set of positioning slots 5 is evenly and equidistantly distributed. Several positioning blocks 6 are fixedly connected to one side of the water supply pipe 2. The positions of the positioning blocks 6 correspond to the positions of each set of positioning slots 5. Through the cooperation of the positioning blocks 6, the water supply pipe 2 and the metering pipe 1 can be quickly positioned during the connection process. During installation, it is only necessary to align the positioning blocks 6 with the corresponding positioning slots 5 to ensure that the water supply pipe 2 and the metering pipe 1 are in the correct connection position, avoiding the trouble of repeated adjustments and further improving the convenience and accuracy of installation.

[0022] The working principle of this utility model is as follows: When using this flow meter, the metering pipe 1 is connected to the water supply pipe 2 for which the pressure difference needs to be calculated. During the connection process, the positioning block 6 of the water supply pipe 2 is first aligned with the positioning groove 5 of the metering pipe 1. Then, the two collars 301 of the connecting mechanism 3 are fitted onto the connection between the metering pipe 1 and the water supply pipe 2. After the fitting is completed, the screw 403 is rotated. The screw 403 rotates between the two corresponding fixing blocks 401 through the rotating shaft 402, rotating the screw 403 into the locking grooves 305 of the two locking blocks 304. By rotating the locking blocks 405, since the locking blocks 405 and the screw 403 are threadedly connected, the locking blocks 405... 5. During rotation, the screw 403 moves and presses one of the snap-fit ​​blocks 304 on the outer wall to fix the connection of the two collars 301. When the fluid flows through the metering pipe 1, the orifice plate 7 at the center of the metering pipe 1 will throttle the fluid. When the fluid passes through the orifice plate 7, a pressure difference will be generated before and after the orifice plate 7. At this time, the pressure taps 8 on both sides of the orifice plate 7 can obtain this pressure difference signal. The pressure taps 8 transmit the pressure signal to the differential pressure sensor 10 above the support bracket 9 through the connecting pipe 11. After receiving the pressure difference signal, the differential pressure sensor 10 converts it into an electrical signal, and then calculates the flow rate of the fluid according to the preset conversion relationship.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A differential pressure flow meter for ease of installation comprising a metering conduit (1) characterised in that: Two water conveying pipes (2) are movably connected to two ends of the metering pipeline (1), a connecting mechanism (3) is sleeved at the connecting position of the metering pipeline (1) and the water conveying pipe (2), the connecting mechanism (3) comprises a sleeve ring (301), the sleeve ring (301) is designed in a semicircle and the number of sleeve rings (301) is two, one end of each of the two sleeve rings (301) is fixedly connected with a connecting block (302), a connecting shaft (303) is rotatably connected between inner walls of the two connecting blocks (302), the other end of each of the two connecting blocks (302) is fixedly connected with a clamping block (304), a clamping groove (305) is formed in one side of the clamping block (304), a clamping mechanism (4) is fixedly installed on one side of one of the clamping blocks (304), the clamping mechanism (4) comprises a fixed block (401), the number of fixed blocks (401) is two, the two fixed blocks (401) are fixedly installed on one side of the clamping block (304), a rotating shaft (402) is rotatably connected between the two fixed blocks (401), the rotating shaft (402) is fixedly connected with a screw rod (403) on one side, the end of the screw rod (403) is fixedly installed with a baffle (404), and the outer wall of the screw rod (403) is threadedly connected with a clamping block (405).

2. A differential pressure flowmeter for ease of installation according to claim 1, characterized in that: Two groups of positioning grooves (5) are formed at two ends of the metering pipeline (1), and each group of positioning grooves (5) is uniformly and equidistantly distributed.

3. A differential pressure flowmeter for ease of installation according to claim 2, characterized in that: A plurality of positioning blocks (6) are fixedly connected to one side of the water conveying pipe (2), and the positions of the plurality of positioning blocks (6) correspond to the positions of each group of positioning grooves (5).

4. A differential pressure flowmeter for ease of installation according to claim 1, characterized in that: A perforated plate (7) is fixedly installed at the center position of the metering pipeline (1), and two pressure taking holes (8) are formed at two sides of the perforated plate (7) above the metering pipeline (1).

5. A differential pressure flowmeter for ease of installation according to claim 4 wherein: A supporting bracket (9) is fixedly installed above the metering pipeline (1), and a differential pressure sensor (10) is fixedly installed between inner walls of the supporting bracket (9).

6. A differential pressure flowmeter for ease of installation according to claim 5, characterized in that: Two communication pipes (11) are symmetrically fixedly installed below the differential pressure sensor (10), and the two communication pipes (11) are connected with the two pressure taking holes (8) respectively.

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