A liquid flow standard device

Abstract

The utility model relates to liquid flow standard device technical field discloses a kind of liquid flow standard device, comprising: device main body, the end of device main body is fixedly connected with pipeline, the end of pipeline away from device main body is connected with pipe joint, the outer wall of pipe joint is fixedly sleeved with sleeve, the front and rear ends of sleeve are all fixedly connected with baffle piece.The liquid flow standard device, through the cooperation between each component, operating personnel can operate jack to adjust the height position of pipe joint according to use demand, first plate body can also be forced, make universal wheel roll, to adjust the lateral position of pipe joint, realize the universal adjustment of pipe joint, without the aid of hoisting tool, avoid the situation that pipe joint is unstable due to hoisting operation and endanger operating personnel, improve the adjustment accuracy of pipe joint, reduce the complexity and cost of construction.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid flow standard devices, specifically a liquid flow standard device. Background Technology

[0002] Liquid flow measurement is a core parameter in industrial production, energy management, and environmental protection. Its accuracy acts as a "yardstick" in industrial production, directly affecting product quality, energy consumption, and the fairness of trade settlements. In the petrochemical industry, precise flow measurement ensures accurate raw material proportions and avoids product quality fluctuations caused by measurement errors. In energy management, accurate flow data is a key basis for optimizing energy allocation and reducing energy consumption. And in trade settlements, the accuracy of flow measurement is a crucial cornerstone for protecting the interests of both parties in the transaction.

[0003] With the continuous development of water supply networks and oil and gas pipelines towards larger diameters, the demand for calibration of flow meters with a diameter of DN300 and above has experienced explosive growth. However, traditional liquid flow standard devices are proving inadequate in responding to this change. Taking static volumetric standard devices as an example, their maximum flow rate is typically no more than 100 m³ / h. 3 / h, with pipelines up to 1000m high with diameters of DN600 and above. 3 Compared to flow rates above / h, the difference is significant, making it difficult to meet actual verification requirements.

[0004] To overcome the aforementioned shortcomings and achieve flow coverage for pipelines with diameters of DN600 and above, increasing the pipe diameter has become an inevitable choice. However, current large-diameter liquid flow standard devices face numerous challenges. Due to the large installation space required and the heavy weight of the devices themselves, on-site disassembly and assembly operations not only require a significant investment of manpower and resources but are also costly. The operation is particularly complex at the large-diameter pipe joints in liquid flow standard devices. Lifting equipment is typically needed to hoist and connect the heavy pipe components, during which workers are positioned near the lifted pipes, posing a high risk. Furthermore, the precision limitations of lifting equipment result in poor accuracy when fine-tuning large-diameter pipe joints. In addition, the long-term occupation of the construction site by lifting equipment further increases the complexity and cost of construction. Utility Model Content

[0005] The purpose of this invention is to provide a liquid flow rate standard device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a liquid flow standard device, comprising: a device body, a pipe fixedly connected to one end of the device body, a pipe joint connected to the end of the pipe away from the device body, a sleeve fixedly fitted to the outer wall of the pipe joint, baffles fixedly connected to both ends of the sleeve, two semi-circular rings fitted to the outer wall of the sleeve, a plurality of balls slidably engaged on the inner wall of the semi-circular rings, the balls being in contact with the outer wall of the sleeve, two pairs of support columns fixedly connected to the outer wall of one of the semi-circular rings, a first plate fixedly connected to the end of the support column away from the semi-circular ring, a jack fixedly connected to the surface of the first plate away from the support column, a second plate fixedly connected to the end of the jack away from the first plate, and casters fixedly connected to the four corners of the lower surface of the second plate away from the jack.

[0007] Preferably, the outer wall of the sleeve is provided with an annular groove, and a pair of contact rings are provided inside the annular groove. The inner wall of the contact rings is rotatably connected with a bolt, the bolt passes through the semi-circular ring, and the bolt is threadedly connected to the semi-circular ring.

[0008] Preferably, a flexible folding cylinder is fitted between the pipe and the pipe joint, and the flexible folding cylinder is connected to the pipe and the pipe joint by a pipe clamp.

[0009] Preferably, both ends of the flexible folding cylinder are fitted with collars, the inner walls of the two collars are fixedly connected to the pipe and the pipe joint respectively, the sleeve is fixedly connected to the collars by a vertical rod, a pair of protrusions are fixedly connected to the outer walls of the two collars, a pair of connecting rods are provided on the outer side of the flexible folding cylinder, the connecting rods pass through the protrusions, and a pair of nuts are threaded to both ends of the outer walls of the connecting rods, the nuts abutting against the protrusions.

[0010] Preferably, the outer wall of the connecting rod is fitted with an arc-shaped block, which fits against the outer wall of the flexible folding cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This liquid flow standard device has the following advantages over traditional technology: When connecting the pipe joints of the main body of the device to the external connecting pipeline through the coordinated cooperation of various components, the operator first aligns the multiple casters fixed to the lower surface of the second plate with the mounting base. Then, the operator operates the jack to move the first plate upward, placing the two semi-circular rings on the outside of the sleeve. The operator then stops the upward movement of the jack output shaft and uses fasteners to connect and install the two semi-circular rings. At this point, the operator can operate the jack to adjust the height of the pipe joint according to the usage requirements. The operator can also apply force to the first plate to make the casters roll, thereby adjusting the lateral position of the pipe joint and realizing the universal adjustment of the pipe joint. This process does not require the use of hoisting tools, avoiding the situation where the pipe joint is unstable due to hoisting operations and endangers the operator. At the same time, it improves the adjustment accuracy of the pipe joint and reduces the complexity and cost of construction. Through the coordinated operation of various components, after the operator uses fasteners to fit the two semi-circular rings onto the outside of the sleeve, the operator can rotate the bolt clockwise to place the adhesive ring inside the ring groove opened on the outer wall of the sleeve, so that the adhesive ring fits into the ring groove, thereby improving the stability after the two semi-circular rings are fitted and rotated as needed. Through the coordinated operation of various components, the pipes and pipe joints are connected by a flexible folding cylinder. This connection method facilitates a wide range of position adjustments for the pipe joints. In addition, after the pipe joints are adjusted, the connecting rod can pass through the two protrusions on the pipe and pipe joint, and two pairs of nuts can be threaded to the connecting rod to make it abut against the protrusions, thereby forming a rigid connection between the pipes and pipe joints and ensuring the stable operation of the joints in the liquid flow standard device. Attached Figure Description

[0012] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 2 Enlarged view of point B in the middle; Figure 4 for Figure 3 A schematic diagram of the overall structure of the middle semi-circular ring.

[0014] In the diagram: 1. Main body of the device; 2. Pipe; 3. Pipe joint; 4. Sleeve; 5. Baffle; 6. Semicircular ring; 7. Ball bearing; 8. Support column; 9. First plate; 10. Jack; 11. Second plate; 12. Caster wheel; 13. Ring groove; 14. Adhesive ring; 15. Bolt; 16. Flexible folding cylinder; 17. Pipe clamp; 18. Collar; 19. Upright pole; 20. Protrusion; 21. Connecting rod; 22. Nut; 23. Arc block; 24. Fastener. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4 This utility model provides a technical solution: a liquid flow standard device, comprising: a device body 1, a pipe 2 fixedly connected to one end of the device body 1, a pipe joint 3 connected to the end of the pipe 2 away from the device body 1, a sleeve 4 fixedly sleeved on the outer wall of the pipe joint 3, baffles 5 fixedly connected to both the front and rear ends of the sleeve 4, two semi-circular rings 6 fitted on the outer wall of the sleeve 4, a plurality of balls 7 slidably engaged on the inner wall of the semi-circular rings 6, the balls 7 being in contact with the outer wall of the sleeve 4, two pairs of support columns 8 fixedly connected to the outer wall of one semi-circular ring 6, a first plate 9 fixedly connected to the end of the support column 8 away from the semi-circular ring 6, a jack 10 fixedly connected to the surface of the first plate 9 away from the support column 8, a second plate 11 fixedly connected to the end of the jack 10 away from the first plate 9, and casters 12 fixedly connected to the four corners of the lower surface of the second plate 11 away from the jack 10.

[0017] In the specific implementation process, it is worth noting that the main body 1 is the liquid flow standard device body, with a precise internal structure and a mature device capable of stably providing and regulating liquid flow. The pipe 2 is made of high-strength, corrosion-resistant materials, capable of withstanding liquid transportation under certain pressure, ensuring that there will be no leakage problems during long-term use. The pipe joint 3 is a connecting pipe with a flange, which can ensure the stability of the liquid during transmission. The sleeve 4 is made of a sturdy material, and the baffles 5 fixed at its front and rear ends play a certain role in limiting and protecting it, preventing the semi-circular ring 6 from detaching from the sleeve 4 during movement. The multiple ball bearings 7 slidingly engaged on the inner wall of the semi-circular ring 6 can... The friction between the semicircular ring 6 and the sleeve 4 is reduced, making the movement of the semicircular ring 6 on the sleeve 4 smoother. The ball bearing 7 is composed of a groove and a steel ball. The steel ball can roll freely inside the groove but cannot be separated from the groove. The support column 8 supports the first plate 9. It is strong enough to bear the weight of the jack 10 and the first plate 9. The first plate 9 and the second plate 11 are both flat metal plates with rust-proof treatment. The jack 10 is installed between the two. The first plate 9 can be moved up and down by the extension and retraction of the jack 10. The universal wheel 12 has flexible rotation performance and can move freely in all directions, which facilitates the position adjustment of the entire device.

[0018] Furthermore, the outer wall of the sleeve 4 is provided with an annular groove 13, and a pair of adhesive rings 14 are provided inside the annular groove 13. The inner wall of the adhesive rings 14 is rotatably connected with bolts 15, which pass through the semi-circular ring 6 and are threadedly connected to the semi-circular ring 6.

[0019] In the specific implementation process, it is worth noting that the opening of the annular groove 13 can perfectly match the adhesive ring 14, ensuring that the adhesive ring 14 can be stably placed inside the annular groove 13. The bolt 15 is made of hard material, and its threaded part is finely machined to be tightly connected with the thread of the semi-circular ring 6. The adhesive ring 14 is rotatably connected to the end of the bolt 15 through a ball bearing. By rotating the bolt 15, the adhesive ring 14 can be positioned inside the annular groove 13.

[0020] Furthermore, a flexible folding cylinder 16 is fitted between pipe 2 and pipe joint 3, and the flexible folding cylinder 16 is connected to pipe 2 and pipe joint 3 through pipe clamp 17.

[0021] In the specific implementation process, it is worth noting that the flexible folding cylinder 16 adopts a multi-layer structure and its main material is rubber, which has good flexibility and corrosion resistance. When the position of the pipe joint 3 is adjusted within a large range, it can freely expand and contract with the movement of the pipe joint 3 without affecting the normal transmission of liquid. The pipe clamp 17 is made of sturdy material, and its inner diameter matches the outer diameter of the pipe 2 and the pipe joint 3. By tightening the pipe clamp 17, the flexible folding cylinder 16 can be firmly connected between the pipe 2 and the pipe joint 3 to prevent loosening and leakage.

[0022] Furthermore, both ends of the flexible folding cylinder 16 are fitted with collars 18. The inner walls of the two collars 18 are fixedly connected to the pipe 2 and the pipe joint 3, respectively. The sleeve 4 is fixedly connected to the collars 18 through the upright 19. A pair of protrusions 20 are fixedly connected to the outer walls of the two collars 18. A pair of connecting rods 21 are provided on the outer side of the flexible folding cylinder 16. The connecting rods 21 pass through the protrusions 20. A pair of nuts 22 are threaded to both ends of the outer walls of the connecting rods 21. The nuts 22 abut against the protrusions 20.

[0023] In the specific implementation process, it is worth noting that the upright 19 serves to connect the sleeve 4 and the collar 18. Its length and strength are designed according to actual needs to ensure a stable connection between the sleeve 4 and the collar 18. The position of the protrusion 20 is reasonably set, and its surface is flat, which facilitates the passage of the connecting rod 21. The connecting rod 21 is made of high-strength metal material and can withstand a certain amount of tension and pressure. By tightening the nuts 22 at both ends with the protrusion 20, a rigid connection can be formed between the pipe 2 and the pipe joint 3, effectively resisting external vibration and impact.

[0024] Furthermore, the outer wall of the connecting rod 21 is fitted with an arc-shaped block 23, which fits into the outer wall of the flexible folding tube 16.

[0025] In the specific implementation process, it is worth noting that the shape of the arc block 23 matches the outer wall of the flexible folding cylinder 16. Its material is soft and can fit tightly with the flexible folding cylinder 16, playing a role in protecting the flexible folding cylinder 16 and enhancing the stability of the flexible folding cylinder 16.

[0026] Working principle: Pipe joint connection and universal adjustment principle: During the use of the liquid flow standard device, when it is necessary to connect the pipe joint 3 of the pipe 2 in the main body 1 of the device to the external connecting pipeline, the operator first fixes the multiple universal wheels 12 fixed to the lower surface of the second plate 11 to the mounting base surface to provide a stable moving foundation for subsequent operations. Then, the jack 10 is operated to move the first plate 9 upward, and the two semi-circular rings 6 are fitted onto the outside of the sleeve 4. Then, the upward movement of the output shaft of the jack 10 is stopped, and the two semi-circular rings 6 are connected and installed using fasteners 24. At this time, the operator can operate the jack 10 according to the actual use requirements to accurately adjust the height position of the pipe joint 3; force can also be applied to the first plate 9 to make the universal wheels 12 roll, thereby adjusting the lateral position of the pipe joint 3 and realizing the universal adjustment of the pipe joint 3. This process does not require the use of hoisting tools, avoiding the situation where the pipe joint 3 is unstable due to hoisting operations and endangering the operator. At the same time, it improves the adjustment accuracy of the pipe joint 3 and effectively reduces the complexity and cost of construction.

[0027] The principle behind the improved stability after assembling a semi-circular ring: After the operator uses fastener 24 to fit the two semicircular rings 6 onto the outside of the sleeve 4, in order to further improve its stability, the operator rotates bolt 15 clockwise to precisely place the abutment ring 14 inside the annular groove 13 opened on the outer wall of the sleeve 4, so that the abutment ring 14 and the annular groove 13 fit tightly. This can enhance the stability after the two semicircular rings 6 are fitted and rotated and adjusted as needed, ensuring that the semicircular rings 6 can be firmly fixed on the sleeve 4 during subsequent use, and will not easily shift or loosen due to external factors, thus providing a reliable guarantee for the stable operation of the entire device.

[0028] Pipe and joint connection methods and rigid connection principle: In the liquid flow standard device, pipe 2 and pipe joint 3 are connected in a unique way. They are connected by a flexible folding cylinder 16. This connection method has significant advantages, facilitating a wide range of position adjustments for pipe joint 3. After the position adjustment of pipe joint 3 is completed, a rigid connection operation is performed to ensure the stable operation of the device. The connecting rod 21 passes through two protrusions 20 on pipe 2 and pipe joint 3, and then two pairs of nuts 22 are threadedly connected to the connecting rod 21, making them abut against the protrusions 20. In this way, a rigid connection is formed between pipe 2 and pipe joint 3, which can effectively resist external vibration and impact, ensuring the stable operation of the joint in the liquid flow standard device and guaranteeing the accuracy and reliability of flow measurement.

[0029] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid flow rate standard device, comprising: The device body (1) is characterized in that: a pipe (2) is fixedly connected to one end of the device body (1), a pipe joint (3) is connected to the end of the pipe (2) away from the device body (1), a sleeve (4) is fixedly sleeved on the outer wall of the pipe joint (3), baffles (5) are fixedly connected to both the front and rear ends of the sleeve (4), two semi-circular rings (6) are fitted on the outer wall of the sleeve (4), and multiple balls (7) are slidably engaged on the inner wall of the semi-circular rings (6), and the balls (7) are engaged with... The outer walls of the sleeve (4) are fitted together, and two pairs of support columns (8) are fixed to the outer wall of one of the semicircular rings (6). The first plate (9) is fixed to the end of the support column (8) away from the semicircular ring (6). A jack (10) is fixed to the surface of the first plate (9) away from the support column (8). A second plate (11) is fixed to the end of the jack (10) away from the first plate (9). Universal wheels (12) are fixed to the four corners of the lower surface of the second plate (11) away from the jack (10).

2. The liquid flow rate standard device according to claim 1, characterized in that: The outer wall of the sleeve (4) is provided with an annular groove (13), and a pair of adhesive rings (14) are provided inside the annular groove (13). The inner wall of the adhesive ring (14) is rotatably connected with a bolt (15), the bolt (15) passes through the semi-circular ring (6), and the bolt (15) is threadedly connected to the semi-circular ring (6).

3. The liquid flow rate standard device according to claim 1, characterized in that: A flexible folding tube (16) is fitted between the pipe (2) and the pipe joint (3), and the flexible folding tube (16) is connected to the pipe (2) and the pipe joint (3) through a pipe clamp (17).

4. A liquid flow rate standard device according to claim 3, characterized in that: Both ends of the flexible folding cylinder (16) are fitted with collars (18). The inner walls of the two collars (18) are fixedly connected to the pipe (2) and the pipe joint (3) respectively. The sleeve (4) is fixedly connected to the collars (18) through the upright (19). A pair of protrusions (20) are fixedly connected to the outer walls of the two collars (18). A pair of connecting rods (21) are provided on the outer side of the flexible folding cylinder (16). The connecting rods (21) pass through the protrusions (20). A pair of nuts (22) are threaded to both ends of the outer walls of the connecting rods (21). The nuts (22) abut against the protrusions (20).

5. A liquid flow rate standard device according to claim 4, characterized in that: The outer wall of the connecting rod (21) is fitted with an arc-shaped block (23), which fits against the outer wall of the flexible folding tube (16).

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