Mass flow meter detection device with temperature compensation function

Abstract

The utility model discloses a mass flow meter detection device capable of temperature compensation, which comprises a detection mechanism, a first supporting mechanism and a second supporting mechanism, the first supporting mechanism and the second supporting mechanism are mounted on the detection mechanism and used for supporting a flow meter body, and the first supporting mechanism comprises a first fixed column and a first telescopic column. And the second supporting mechanism comprises a second fixing column and a second telescopic column, the first telescopic column is movably connected to the inner upper portion of the first fixing column, and the upper end of the first telescopic column is fixedly connected with a first supporting block. Through the arrangement of the first supporting mechanism and the second supporting mechanism, convenient installation of the mass flow meter is achieved, complex hoisting equipment and a large amount of labor are not needed, the operation difficulty and time and labor cost are remarkably reduced, meanwhile, safety risks caused by unstable hoisting are avoided, and the detection efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meter detection, in particular to a mass flow meter detection device capable of temperature compensation. Background Art

[0002] A mass flowmeter is an instrument used to directly measure the mass flow rate of a fluid (such as a liquid or gas). Unlike instruments that measure volumetric flow and then convert it based on the fluid's density, a mass flowmeter uses specific physical principles (such as the Coriolis effect, changes in heat conduction, or momentum measurement) to directly output a signal proportional to the fluid's mass flow rate. This means its measurement results are unaffected by changes in operating parameters such as fluid density, temperature, pressure, or viscosity, providing highly accurate and stable mass flow data. This makes it particularly suitable for critical applications requiring high measurement accuracy, highly variable operating conditions, or precise metering and batching.

[0003] When testing mass flow meters, it is crucial to ensure the accuracy of the measurement results. Therefore, temperature-compensated detection devices are widely used to eliminate the impact of temperature changes on measurement accuracy. However, the traditional installation and connection method of the detection device and the mass flow meter to be tested is significantly inconvenient: industrial mass flow meters are usually heavy and require additional lifting equipment for support and positioning, and then the bolts of the connecting flanges are tightened manually one by one. This traditional method not only takes up a large operating area and increases the complexity of on-site layout, but also relies on lifting equipment and a large amount of manual operation, resulting in high time and labor costs and low detection efficiency. In addition, due to the heavy weight of the mass flow meter, it is easy to fall due to unstable grip during the lifting process, posing a safety risk to surrounding personnel. Utility Model Content

[0004] One purpose of the present invention is to provide a mass flow meter detection device with temperature compensation. The present invention solves the problem that the traditional detection method proposed in the above background not only occupies a large operating site and increases the complexity of on-site layout, but also relies on lifting equipment and a large amount of manual operation, resulting in high time and labor costs and low detection efficiency. In addition, since the mass flow meter is heavy, it is easy to fall due to unstable grasping during the lifting process, posing a safety risk to surrounding personnel.

[0005] According to an embodiment of the utility model, a temperature-compensated mass flowmeter detection device includes a detection mechanism and a first supporting mechanism and a second supporting mechanism installed on the detection mechanism for supporting the flowmeter body, the first supporting mechanism includes a first fixed column and a first telescopic column, the second supporting mechanism includes a second fixed column and a second telescopic column, the first telescopic column is movably connected to the inner upper part of the first fixed column, the upper end of the first telescopic column is fixedly connected to the first support block, the inner side of the first fixed column is rotatably connected to the first gear, one side of the first gear is fixedly connected to the ratchet, the inner side surface of the first fixed column is rotatably connected to the ratchet, the inner other side surface of the first fixed column is fixedly connected to the fixed rod, and a spring structure is installed between the side surfaces of the fixed rod and the ratchet.

[0006] Preferably, a tooth groove is formed on the side surface of the first telescopic column, and the first telescopic column is meshed with the first gear through the tooth groove.

[0007] Preferably, a handle is fixedly connected to one side surface of the ratchet wheel, and a shift rod is fixedly connected to one side surface of the ratchet teeth.

[0008] Preferably, the second telescopic column is movably connected to the inner upper part of the second fixed column, the upper end of the second telescopic column is fixedly connected to the second support block, and the interior of the second fixed column is rotatably connected to the second gear.

[0009] Preferably, a tooth groove is formed on the side surface of the second telescopic column, and the second telescopic column and the second gear are meshed with each other through the tooth groove.

[0010] Preferably, transmission gears are fixedly connected to the outer sides of the second gear and the first gear, and two groups of transmission gears are provided. The two groups of transmission gears are connected to each other through a transmission belt.

[0011] Preferably, the detection mechanism includes a base plate, and the upper surface of the base plate is respectively fixedly connected to a vacuum pump, a gas tank, a fixed plate and an air pump. The vacuum pump and the gas tank are connected to each other through a connecting pipe, and the air pump and the flowmeter body are connected to each other through a detection flange and a connecting pipe.

[0012] Preferably, one side surface of the fixed plate is fixedly connected to the fixed end of the sealed telescopic tube, a temperature compensation device is installed inside the sealed telescopic tube, the telescopic end of the sealed telescopic tube is fixedly connected to a detection flange, and an electric push rod is installed between the fixed plate and the detection flange.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a first supporting mechanism and a second supporting mechanism, and when in use, the mass flow meter to be tested is placed on the upper surface of the first supporting mechanism and the second supporting mechanism, and the ratchet and the first gear are driven to rotate by turning the handle clockwise, and the first gear causes the first telescopic column to slide upward through the meshing relationship, and the second gear is caused to rotate accordingly through the transmission gear and the transmission belt, and drives the second telescopic column and the second support block to slide upward synchronously, and after the mass flow meter is lifted up to a suitable height, the handle is released. At this time, the ratchet is stuck in the corresponding groove on the surface of the ratchet wheel to prevent the mass flow meter from falling due to the reversal of the ratchet wheel, the first gear and the second gear, which may cause loss or danger. Subsequently, the detection flange and the flange of the flow meter body can be manually connected, and the flow meter body can be tested through the detection mechanism, thereby realizing convenient installation of the mass flow meter, without the need for complex lifting equipment and a large amount of manpower, significantly reducing the difficulty of operation, time and labor costs, and at the same time avoiding the safety risks caused by unstable lifting, thereby improving detection efficiency and safety;

[0015] The utility model adopts the structures such as the electric push rod and the sealed telescopic tube. After the mass flow meter is placed on the first supporting mechanism and the second supporting mechanism, the flange on one side of the flow meter body and the detection flange close to the air pump are first installed and connected to each other. Then, the electric push rod is extended to drive the detection flange on the other side close to the flange of the mass flow meter, and the flanges on both sides are manually connected to complete the installation of the mass flow meter. It can adapt to mass flow meters of different lengths, significantly improves installation efficiency, and reduces operation difficulty and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic structural diagram of a temperature-compensated mass flowmeter detection device proposed by the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of a first supporting mechanism and a second supporting mechanism of a temperature-compensated mass flowmeter detection device proposed by the present invention;

[0019] Figure 3 This is a cross-sectional view of a first supporting mechanism and a second supporting mechanism in a temperature-compensated mass flowmeter detection device proposed by the present invention;

[0020] Figure 4 A temperature-compensated mass flowmeter detection device proposed by the utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a three-dimensional schematic diagram of the rear side of the first supporting mechanism and the second supporting mechanism in a temperature-compensated mass flowmeter detection device proposed by the present invention;

[0022] In the picture:

[0023] 1. Detection mechanism; 11. Base plate; 12. Vacuum pump; 13. Connecting pipe; 14. Gas tank; 15. Fixed plate; 16. Temperature compensation device; 17. Electric push rod; 18. Detection flange; 19. Gas pump; 2. Flowmeter body; 3. First supporting mechanism; 31. First fixed column; 32. First telescopic column; 33. First support block; 34. First gear; 35. Handle; 36. Ratchet; 37. Ratchet; 38. Push rod; 39. Spring; 310. Fixed rod; 4. Second supporting mechanism; 41. Second fixed column; 42. Second telescopic column; 43. Second support block; 44. Second gear; 45. Transmission gear; 46. Transmission belt. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0025] refer to Figure 1-5, a temperature-compensated mass flowmeter detection device includes a detection mechanism 1 and a first supporting mechanism 3 and a second supporting mechanism 4 installed on the detection mechanism 1 for supporting a flowmeter body 2, the first supporting mechanism 3 including a first fixed column 31 and a first telescopic column 32, the second supporting mechanism 4 including a second fixed column 41 and a second telescopic column 42, the first telescopic column 32 is movably connected to the inner upper part of the first fixed column 31, the upper end of the first telescopic column 32 is fixedly connected to the first supporting block 33, the inner side of the first fixed column 31 is rotatably connected to the first gear 34, one side of the first gear 34 is fixedly connected to the ratchet 36, one side of the inner side surface of the first fixed column 31 is rotatably connected to the ratchet 37, the other side surface of the inner side of the first fixed column 31 is fixedly connected to the fixing rod 310, and a spring 39 structure is installed between the side surface of the fixing rod 310 and the ratchet 37. By setting the first supporting mechanism 3 and the second supporting mechanism 4, the mass flowmeter to be detected is placed on the first supporting mechanism 3 when in use. The upper surface of the second support mechanism 4 is driven by the clockwise rotation of the handle 35 to drive the ratchet 36 and the first gear 34 to rotate. The first gear 34 causes the first telescopic column 32 to slide upward through the meshing relationship, and the second gear 44 is also rotated through the transmission gear 45 and the transmission belt 46, and drives the second telescopic column 42 and the second support block 43 to slide upward synchronously. After the mass flowmeter is lifted up to a suitable height, the handle 35 is released. At this time, the ratchet 37 is stuck in the corresponding groove on the surface of the ratchet 36 to prevent the ratchet 36 and the first gear 34 and the second gear 44 from reversing and causing the mass flowmeter to fall and cause loss or danger. Then the detection flange 18 and the flange of the flowmeter body 2 can be manually connected, and the flowmeter body 2 can be detected by the detection mechanism 1, thereby realizing the convenient installation of the mass flowmeter without the need for complex lifting equipment and a large amount of manpower, significantly reducing the difficulty of operation, time and labor costs, while avoiding the safety risks caused by unstable lifting, and improving the detection efficiency and safety.

[0026] Example 1: A tooth groove is provided on the side surface of the first telescopic column 32, and the first telescopic column 32 is meshed with the first gear 34 through the tooth groove. A handle 35 is fixedly connected to one side surface of the ratchet 36, and a shift rod 38 is fixedly connected to one side surface of the ratchet 37. The second telescopic column 42 is movably connected to the inner upper part of the second fixed column 41, and the upper end of the second telescopic column 42 is fixedly connected to the second support block 43. The internal rotation of the second fixed column 41 is connected to the second gear 44. A tooth groove is provided on the side surface of the second telescopic column 42, and the second telescopic column 42 and the second gear 44 are meshed with each other through the tooth groove. The outer sides of the second gear 44 and the first gear 34 are fixedly connected to a transmission gear 45. Two groups of transmission gears 45 are provided, and the two groups of transmission gears 45 are connected to each other by a transmission belt 46.

[0027] Example 2: The detection mechanism 1 includes a base plate 11, and the upper surface of the base plate 11 is fixedly connected to a vacuum pump 12, an air tank 14, a fixed plate 15 and an air pump 19. The vacuum pump 12 and the air tank 14 are connected to each other through a connecting pipe 13, and the air pump 19 and the flow meter body 2 are connected to each other through a detection flange 18 and the connecting pipe 13. One side surface of the fixed plate 15 is fixedly connected to the fixed end of the sealed telescopic tube. A temperature compensation device 16 is installed inside the sealed telescopic tube. The telescopic end of the sealed telescopic tube is fixedly connected to the detection flange 18. The fixed plate 15 and the detection flange 18 are fixedly connected. An electric push rod 17 is installed between them. Through the electric push rod 17 and the sealed telescopic tube and other structures, after the mass flow meter is placed on the first supporting mechanism 3 and the second supporting mechanism 4, the flange on one side of the flow meter body 2 and the detection flange 18 close to the air pump 19 are first installed and connected to each other, and then the electric push rod 17 is extended to drive the detection flange 18 on the other side close to the flange of the mass flow meter, and the flanges on both sides are manually connected to complete the installation of the mass flow meter, which can adapt to mass flow meters of different lengths, significantly improve the installation efficiency, and reduce the operation difficulty and labor cost.

[0028] During use, the mass flowmeter body 2 to be tested is placed steadily on the upper surfaces of the first support block 33 and the second support block 43. Next, the operator grasps the handle 35 and rotates it clockwise. This action drives the ratchet 36 and the integral first gear 34 fixed thereto to rotate synchronously. The first gear 34 engages with the tooth grooves on the side surface of the first telescopic column 32 through its tooth grooves, thereby driving the first telescopic column 32 to slide upward on the inner upper part of the first fixed column 31. At the same time, the rotation of the first gear 34 is transmitted to the second gear 44 through the transmission gear 45 and the transmission belt 46. The second gear 44 then engages with the tooth grooves on the side surface of the second telescopic column 42 through its tooth grooves, driving the second telescopic column 42 to slide upward synchronously on the inner upper part of the second fixed column 41. In this way, the first support block 33 and the second support block 43 work together to smoothly and synchronously lift the mass flowmeter body 2 upward to the appropriate height. Once the desired height is reached, the handle 35 is released. The ratchet 37, now locked into the corresponding groove on the surface of the ratchet 36 by the elastic force of the spring 39, locks the rotation angle of the ratchet 36 and effectively prevents the ratchet 36, the first gear 34, and the second gear 44 from rotating in the opposite direction. This ensures that the mass flowmeter body 2 remains securely at the set height, avoiding the risk of falling. The operator can then manually connect the detection flange 18 to the flange of the mass flowmeter body 2. To connect, the flange on one side of the mass flowmeter body 2 is first installed and connected to the detection flange 18 on the side near the air pump 19. The electric push rod 17 is then activated to extend, causing the detection flange 18, connected to the telescopic end of the push rod 17, to move and automatically adjust its position closer to the other flange on the mass flowmeter body 2. Once the two flanges are firmly in contact, the operator manually connects the flanges to achieve precise docking and connection. This design accommodates mass flowmeter bodies 2 of varying lengths. Finally, the securely installed mass flowmeter body 2 is inspected using the inspection mechanism 1 to ensure the accuracy of the measurement results. The entire process enables convenient and safe installation and testing of mass flow meters, without the need for complex lifting equipment and extensive manual operations, significantly reducing operational difficulty, time, and labor costs. It also avoids safety risks caused by unstable lifting and improves testing efficiency and safety.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature-compensated mass flowmeter detection device, characterized in that: The invention comprises a detection mechanism (1) and a first support mechanism (3) and a second support mechanism (4) mounted on the detection mechanism (1) for supporting a flow meter body (2), wherein the first support mechanism (3) comprises a first fixed column (31) and a first telescopic column (32), and the second support mechanism (4) comprises a second fixed column (41) and a second telescopic column (42), wherein the first telescopic column (32) is movably connected to the inner upper part of the first fixed column (31), and the upper end of the first telescopic column (32) is fixedly connected to a first support block (33), the inner side of the first fixed column (31) is rotatably connected to a first gear (34), one side of the first gear (34) is fixedly connected to a ratchet (36), one side of the inner side of the first fixed column (31) is rotatably connected to a ratchet (37), and the other side of the inner side of the first fixed column (31) is fixedly connected to a fixed rod (310), and a spring (39) structure is installed between the fixed rod (310) and the side surface of the ratchet (37).

2. A temperature-compensated mass flowmeter detection device according to claim 1, characterized in that: A tooth groove is provided on the side surface of the first telescopic column (32), and the first telescopic column (32) is meshed with the first gear (34) through the tooth groove.

3. The temperature-compensated mass flowmeter detection device according to claim 1, characterized in that: A handle (35) is fixedly connected to one side surface of the ratchet (36), and a shifting rod (38) is fixedly connected to one side surface of the ratchet (37).

4. A temperature-compensated mass flowmeter detection device according to claim 1, characterized in that: The second telescopic column (42) is movably connected to the inner upper part of the second fixed column (41), the upper end of the second telescopic column (42) is fixedly connected to the second support block (43), and the interior of the second fixed column (41) is rotatably connected to the second gear (44).

5. The temperature-compensated mass flowmeter detection device according to claim 1, characterized in that: A tooth groove is provided on the side surface of the second telescopic column (42), and the second telescopic column (42) and the second gear (44) are meshed with each other through the tooth groove.

6. A temperature-compensated mass flowmeter detection device according to claim 4, characterized in that: The outer sides of the second gear (44) and the first gear (34) are both fixedly connected with transmission gears (45), and two groups of transmission gears (45) are provided. The two groups of transmission gears (45) are connected to each other via a transmission belt (46).

7. The temperature-compensated mass flowmeter detection device according to claim 1, characterized in that: The detection mechanism (1) comprises a base plate (11), the upper surface of which is fixedly connected to a vacuum pump (12), a gas tank (14), a fixed plate (15) and an air pump (19), respectively; the vacuum pump (12) and the gas tank (14) are connected to each other via a connecting pipe (13), and the air pump (19) and the flowmeter body (2) are connected to each other via a detection flange (18) and the connecting pipe (13).

8. The temperature-compensated mass flowmeter detection device according to claim 7, characterized in that: One side surface of the fixed plate (15) is fixedly connected to the fixed end of the sealed telescopic tube, a temperature compensation device (16) is installed inside the sealed telescopic tube, the telescopic end of the sealed telescopic tube is fixedly connected to a detection flange (18), and an electric push rod (17) is installed between the fixed plate (15) and the detection flange (18).

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