Coriolis mass flowmeter calibration apparatus

Abstract

The utility model discloses a kind of coriolis mass flowmeter calibration devices, including standard flowmeter and a pair of joint. Standard flowmeter both ends are connected with connecting pipe. A pair of joint is connected on a pair of connecting pipe, and joint includes connecting portion, movable ring, multiple adjusting mechanisms and multiple clamping mechanisms, connecting portion is connected with connecting pipe, movable ring can slide in the outside of connecting portion, multiple adjusting mechanisms are evenly connected on the outer wall of movable ring, clamping mechanism is corresponding with adjusting mechanism, and it is connected on adjusting mechanism, by the cooperation of multiple adjusting mechanisms and multiple clamping mechanisms, so that connecting pipe can be connected with different size flange. The outer wall of connecting portion is fixedly connected with multiple circumferentially evenly distributed reinforcing strips. The utility model can optimize the connecting joint of calibration device, so that the connecting joint can be suitable for multiple sizes of flange fixing, and then the calibration device can calibrate multiple mass flowmeters, expand the overall scope of application.

Description

Technical Field

[0001] This utility model belongs to the technical field of Coriolis mass flow meters, and specifically relates to a calibration device for Coriolis mass flow meters. Background Technology

[0002] A Coriolis mass flow meter is an instrument that directly measures mass flow rate. It can accurately measure the mass flow rate of various media, unaffected by changes in media density, viscosity, temperature, pressure, diameter, and flow velocity. As a high-precision flow measurement instrument, the Coriolis mass flow meter is widely used in many industries such as chemical, food, and pharmaceutical.

[0003] Coriolis mass flow meters require calibration after a period of use to ensure their accuracy and reliability. Existing calibration methods for Coriolis mass flow meters include the standard meter method, the volumetric method, and the mass method. The standard meter method involves connecting a standard flow meter and the Coriolis flow meter in series within the same piping system, ensuring the fluid flows sequentially through both instruments. The Coriolis flow meter reading is calibrated by comparing the output values ​​of the standard meter. For example, Chinese Patent CN220339473U discloses a Coriolis mass flow meter calibration device, which effectively improves the connection efficiency and sealing effect between the calibration device and the Coriolis mass flow meter, meeting certain usage requirements. However, when this calibration device is connected to the mass flow meter to be calibrated via a flange, the lack of an adaptive connector, coupled with the varying flange sizes of existing mass flow meters on the market, limits its applicability to flanges of a single size, thus restricting its application range.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a calibration device for Coriolis mass flow meters.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a calibration device for Coriolis mass flow meters, which can solve the problem of the limited applicability of the above-mentioned calibration devices.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] A Coriolis mass flow meter calibration device includes a standard flow meter and a pair of connectors. Both ends of the standard flow meter are connected to connecting pipes. The pair of connectors are respectively connected to the pair of connecting pipes. Each connector includes a connecting part, a movable ring, multiple adjusting mechanisms, and multiple clamping mechanisms. The connecting part is connected to the connecting pipes. The movable ring is slidable on the outside of the connecting part. The multiple adjusting mechanisms are evenly connected to the outer wall of the movable ring. The clamping mechanisms correspond to and are connected to the adjusting mechanisms. Through the cooperation of the multiple adjusting mechanisms and the multiple clamping mechanisms, the connecting pipes can be connected to flanges of different sizes.

[0009] In one or more embodiments of this utility model, a plurality of circumferentially evenly distributed reinforcing strips are fixedly connected to the outer wall of the connecting part, and the inner wall of the movable ring is provided with a sliding groove that matches the reinforcing strips.

[0010] In one or more embodiments of this utility model, the movable ring sidewall is fixedly connected with a plurality of circumferentially evenly distributed connecting ears, and a first locking screw is threaded onto the connecting ears, the first locking screw being in contact with the outer wall of the connecting part.

[0011] In one or more embodiments of this utility model, the adjusting mechanism includes an insertion post, a connecting seat, a connecting rod, and a first screw. The insertion post is slidable within the movable ring. The connecting seat is fixedly connected to one end of the insertion post. The connecting rod is hinged to the connecting seat. The first screw is threadedly connected to one end of the connecting rod.

[0012] In one or more embodiments of this utility model, the movable ring sidewall is threaded with a plurality of second locking screws, the second locking screws corresponding to the insertion post.

[0013] In one or more embodiments of this utility model, a pin is inserted into the side wall of the connecting seat, and a fixing groove matching the pin is provided on the side wall of the connecting rod.

[0014] In one or more embodiments of this utility model, the rotation angle of the connecting rod is 0-180°.

[0015] In one or more embodiments of this utility model, an adjustment groove is provided at the bottom of the connecting rod, one end of the first screw is rotatably connected to the adjustment groove, a movable seat is slidably provided in the adjustment groove, and the movable seat is threadedly connected to the first screw.

[0016] In one or more embodiments of this utility model, the clamping mechanism includes a mounting rod, a sliding rod, a clamping plate, a pair of ear plates, and a pair of second screws. The mounting rod is fixedly connected to the movable seat. The sliding rod is slidable at the end of the mounting rod. The clamping plate is fixedly connected to one end of the sliding rod. The pair of ear plates are fixedly connected to the side wall of the mounting rod. The pair of second screws are respectively threaded onto the pair of ear plates and rotatably connected to the clamping plate.

[0017] In one or more embodiments of this utility model, the number of clamping plates is four, and the included angle between a pair of connected clamping plates is 90°.

[0018] Compared with the prior art, the Coriolis mass flow meter calibration device of this utility model can optimize the connection joint of the calibration device so that the connection joint can be used for flange fixing of various sizes, thereby enabling the calibration device to calibrate a variety of mass flow meters and expanding the overall applicability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a Coriolis mass flow meter calibration device according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure at point B;

[0023] Figure 4 This is a cross-sectional view of the connector in one embodiment of the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of the structure at point C;

[0025] Figure 6 This is a perspective view of the connector in one embodiment of the present invention;

[0026] Figure 7 This is a diagram showing the usage status of a Coriolis mass flow meter calibration device according to one embodiment of the present invention;

[0027] Figure 8 for Figure 7 Schematic diagram of the structure at point D.

[0028] Explanation of key figure labels:

[0029] 1-Standard flow meter, 101-Connecting pipe, 2-Connector, 201-Connecting part, 2011-Reinforcing strip, 202-Modible ring, 2021-Connecting ear, 2022-First locking screw, 2023-Second locking screw, 203-Adjusting mechanism, 2031-Insert post, 2032-Connecting seat, 2033-Connecting rod, 2034-Pin rod, 2035-First screw, 2036-Moving seat, 204-Clamping mechanism, 2041-Mounting rod, 2042-Slide rod, 2043-Clamping plate, 2044-Ear plate, 2045-Second screw. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0031] like Figures 1 to 8 As shown, a Coriolis mass flow meter calibration device according to one embodiment of the present invention includes a standard flow meter 1 and a pair of connectors 2. Both ends of the standard flow meter 1 are connected to connecting pipes 101. The pair of connectors 2 are respectively connected to the pair of connecting pipes 101. Each connector 2 includes a connecting part 201, a movable ring 202, multiple adjusting mechanisms 203, and multiple clamping mechanisms 204. The connecting part 201 is connected to the connecting pipes 101. The movable ring 202 is slidably disposed on the outside of the connecting part 201. The multiple adjusting mechanisms 203 are evenly connected to the outer wall of the movable ring 202. The clamping mechanisms 204 correspond to the adjusting mechanisms 203 and are connected to them. Through the cooperation of the multiple adjusting mechanisms 203 and the multiple clamping mechanisms 204, the connecting pipes 101 can connect to flanges of different sizes. The connecting part 201 is used to connect the flange of the Coriolis mass flow meter to be tested, thereby allowing the Coriolis mass flow meter to be tested to be connected in series with the standard flow meter 1 for calibration. The movable ring 202 is used to install multiple adjusting mechanisms 203. The adjusting mechanism 203 is used to install the clamping mechanism 204. The clamping mechanism 204 can be adjusted under the action of the adjusting mechanism 203 so as to fix flanges of different sizes to the connecting pipe 101.

[0032] When it is necessary to fix the flange of the Coriolis mass flow meter to be measured to the connecting pipe 101, first align the flange with the side wall of the connecting pipe 101, and then flip the adjusting mechanism 203 so that the clamping mechanism 204 is on the upper side of the flange. If the clamping mechanism 204 is not on the upper side of the flange when the adjusting mechanism 203 is flipped, the position of the movable ring 202 on the outer wall of the connecting part 201 needs to be adjusted until the clamping mechanism 204 is on the upper side of the flange when the adjusting mechanism 203 is flipped. After the clamping mechanism 204 is on the upper side of the flange, the length of the clamping mechanism 204 can be adjusted, and then the position of the clamping mechanism 204 on the adjusting mechanism 203 can be adjusted until the clamping mechanism 204 contacts the side of the flange away from the connecting pipe 101. When multiple clamping mechanisms 204 are in contact with the flange, the flange and the connecting pipe 101 can be clamped and fixed.

[0033] like Figure 6 As shown, multiple circumferentially evenly distributed reinforcing strips 2011 are fixedly connected to the outer wall of the connecting part 201, and the inner wall of the movable ring 202 is provided with a sliding groove that matches the reinforcing strips 2011. The reinforcing strips 2011 are used to guide the sliding of the movable ring 202, making it difficult for the movable ring 202 to rotate on the outer wall of the connecting part 201, so as to ensure the fixing effect of the subsequent clamping mechanism 204 on the flange.

[0034] The movable ring 202 has multiple circumferentially evenly distributed connecting ears 2021 fixedly connected to its side wall. A first locking screw 2022 is threaded onto each connecting ear 2021, and the first locking screw 2022 contacts the outer wall of the connecting part 201. Through the cooperation of the connecting ears 2021 and the first locking screw 2022, the movable ring 202 can be fixed to the outer wall of the connecting part 201, ensuring the clamping and fixing effect of the clamping mechanism 204 on the flange.

[0035] like Figures 1 to 8 As shown, the adjusting mechanism 203 includes an insertion post 2031, a connecting seat 2032, a connecting rod 2033, and a first screw 2035. The insertion post 2031 is slidable within the movable ring 202. The connecting seat 2032 is fixedly connected to one end of the insertion post 2031. The connecting rod 2033 is hinged to the connecting seat 2032. The first screw 2035 is threaded to one end of the connecting rod 2033. The insertion post 2031, slidable within the movable ring 202, is used to adjust the height of the connecting rod 2033 to fix flanges of different sizes. The connecting seat 2032 is used to connect the connecting rod 2033. The hinged connection between the connecting rod 2033 and the connecting seat 2032 allows the connecting rod 2033 to rotate around the connecting seat 2032 to fix the flange. The first screw 2035 is used to adjust the position of the clamping mechanism 204, enabling the clamping mechanism 204 to better fix the flange.

[0036] When fixing the flange, first align the flange with the connecting pipe 101, then rotate the connecting rod 2033 around the connecting seat 2032 to a horizontal position. At this time, the clamping mechanism 204 is on the side of the flange away from the connecting pipe 101. Then rotate the first screw 2035 to adjust the position of the clamping mechanism 204 on the connecting rod 2033 so that the clamping mechanism 204 can contact the side wall of the flange, thereby fixing the flange to the connecting pipe 101. Figure 8 The state shown.

[0037] The movable ring 202 has multiple second locking screws 2023 threadedly connected to its side wall, and the second locking screws 2023 correspond to the insertion post 2031. The second locking screws 2023 are used to lock and fix the height of the adjustment mechanism 203.

[0038] In addition, a pin 2034 is inserted into the side wall of the connecting seat 2032, and a fixing groove matching the pin 2034 is provided on the side wall of the connecting rod 2033. When the connecting rod 2033 is flipped to a horizontal position, the pin 2034 is inserted into the fixing groove, thereby fixing the connecting rod 2033 horizontally. This makes it difficult for the clamping mechanism 204 to flip when clamping the flange and the connecting pipe 101, ensuring the fixing effect between the flange and the connecting pipe 101.

[0039] Preferably, the rotation angle of the connecting rod 2033 is 0-180°. This setting ensures that the connecting rod 2033 can fix the flange.

[0040] like Figures 4 to 5 As shown, the lower bottom of the connecting rod 2033 is provided with an adjustment groove. One end of the first screw 2035 is rotatably connected to the adjustment groove. A movable seat 2036 is slidably provided in the adjustment groove, and the movable seat 2036 is threadedly connected to the first screw 2035. When the first screw 2035 rotates, the movable seat 2036 can move within the adjustment groove due to the thread action.

[0041] like Figures 1 to 8As shown, the clamping mechanism 204 includes a mounting rod 2041, a sliding rod 2042, a clamping plate 2043, a pair of lugs 2044, and a pair of second screws 2045. The mounting rod 2041 is fixedly connected to the movable seat 2036. The sliding rod 2042 is slidably disposed at the end of the mounting rod 2041. The clamping plate 2043 is fixedly connected to one end of the sliding rod 2042. The pair of lugs 2044 are fixedly connected to the side wall of the mounting rod 2041. The pair of second screws 2045 are threadedly connected to the pair of lugs 2044 and rotatably connected to the clamping plate 2043. The mounting rod 2041 is used to connect the clamping plate 2043. The clamping plate 2043 is used to clamp the flange and the connecting pipe 101 so that the standard flow meter 1 and the mass flow meter to be measured are connected in series for subsequent calibration. By setting the ear plate 2044 and the second screw 2045, the distance between the clamping plate 2043 and the mounting rod 2041 can be adjusted so that the clamping plate 2043 can fix flanges of different sizes, further expanding the overall applicability range.

[0042] When the movable seat 2036 moves within the adjusting groove, the mounting rod 2041 and the clamping plate 2043 also move synchronously. Synchronously rotating a pair of second screws 2045 adjusts the distance between the clamping plate 2043 and the mounting rod 2041, allowing the clamping plate 2043 to fix flanges of different sizes, thus expanding the overall applicability.

[0043] Preferably, there are four clamping plates 2043, and the included angle between a pair of connected clamping plates 2043 is 90°. This arrangement ensures that the clamping plates 2043 clamp and fix the flange and connecting pipe 101 effectively, making the flange firmly connected to the standard flow meter 1, so as to facilitate the subsequent calibration of the mass flow meter to be tested.

[0044] In summary, by setting the connector 2, this application can connect and fix flanges of different sizes to the connecting pipe 101, thereby enabling the standard flow meter 1 to calibrate various mass flow meters and expanding the overall applicability.

[0045] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A calibration device for a Coriolis mass flow meter, characterized in that, include: A standard flow meter, wherein both ends of the standard flow meter are connected to connecting pipes; A pair of connectors are respectively connected to a pair of connecting pipes. Each connector includes a connecting part, a movable ring, multiple adjusting mechanisms, and multiple clamping mechanisms. The connecting part is connected to the connecting pipe. The movable ring is slidably disposed on the outside of the connecting part. The multiple adjusting mechanisms are evenly connected to the outer wall of the movable ring. The clamping mechanisms correspond to the adjusting mechanisms and are connected to the adjusting mechanisms. Through the cooperation of the multiple adjusting mechanisms and the multiple clamping mechanisms, the connecting pipe can be connected to flanges of different sizes.

2. The calibration device for a Coriolis mass flow meter according to claim 1, characterized in that, The outer wall of the connecting part is fixedly connected with a plurality of circumferentially evenly distributed reinforcing strips, and the inner wall of the movable ring is provided with a sliding groove that matches the reinforcing strips.

3. The Coriolis mass flow meter calibration device according to claim 1, characterized in that, The movable ring sidewall is fixedly connected with a plurality of circumferentially evenly distributed connecting ears, and a first locking screw is threaded onto the connecting ears, the first locking screw being in contact with the outer wall of the connecting part.

4. The calibration device for a Coriolis mass flow meter according to claim 1, characterized in that, The adjustment mechanism includes: The insertion post is slidably positioned within the movable ring; The connecting seat is fixedly connected to one end of the insertion post; The connecting rod is hinged to the connecting seat; The first screw is threaded to one end of the connecting rod.

5. A Coriolis mass flow meter calibration device according to claim 4, characterized in that, The movable ring sidewall is threaded with a plurality of second locking screws, the second locking screws corresponding to the insertion post.

6. A Coriolis mass flow meter calibration device according to claim 4, characterized in that, A pin is inserted into the side wall of the connecting seat, and a fixing groove matching the pin is provided on the side wall of the connecting rod.

7. A Coriolis mass flow meter calibration device according to claim 4, characterized in that, The rotation angle of the connecting rod is 0-180°.

8. A Coriolis mass flow meter calibration device according to claim 4, characterized in that, The lower bottom of the connecting rod is provided with an adjustment groove, one end of the first screw is rotatably connected to the adjustment groove, and a movable seat is slidably provided in the adjustment groove, the movable seat being threadedly connected to the first screw.

9. A calibration device for a Coriolis mass flow meter according to claim 8, characterized in that, The clamping mechanism includes: The mounting rod is fixedly connected to the movable base; A sliding rod is slidably disposed at the end of the mounting rod; A clamping plate is fixedly connected to one end of the slide rod; A pair of ear plates are fixedly connected to the side wall of the mounting rod; A pair of second screws are threadedly connected to a pair of ear plates and rotatably connected to the clamping plate.

10. A Coriolis mass flow meter calibration device according to claim 9, characterized in that, The number of clamping plates is four, and the included angle between a pair of clamping plates connected together is 90°.

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