Water quantity detection device for water balance test

Abstract

The utility model relates to a water quantity detection device for a water balance test, which belongs to the technical field of water balance tests and comprises a water inlet pipe, a water outlet pipe, a flowmeter and a filtering steady-flow cylinder, a supporting inner cylinder is arranged in the left end of the filtering steady-flow cylinder, a filter screen is arranged in the left end of the supporting inner cylinder, and a rightward-sunken impurity collection settling tank is arranged in the middle of the filter screen. A plurality of flow deflectors are arranged on the right side of the filter screen in the diameter direction of the supporting inner cylinder, a honeycomb-shaped rectifying pore plate is arranged on the right side of each flow deflector, and a section of straight pipe is arranged on the filtering flow stabilizing cylinder on the right side of the supporting inner cylinder. The impurity collecting and settling tank is arranged on the filter screen, filtered impurities can be collected in a centralized mode, blocking can be better prevented, the cleaning and maintaining time is prolonged, the flow deflector and the rectifying hole plate are arranged on the right side of the filter screen, fluid can be stabilized, then the fluid enters the flowmeter to be measured after passing through the flat straight pipe, the flow velocity distribution of the fluid is more uniform, and the measurement accuracy is improved. The fluctuation of numerical values measured by the flow meter is small, and the measurement precision is higher.

Description

Technical Field

[0001] This utility model relates to a water quantity detection device for water balance testing, belonging to the field of water balance testing technology. Background Technology

[0002] Accurate measurement of water flow rate is crucial during water balance testing. However, actual water flows often contain various impurities, such as silt and suspended particulate matter. These impurities not only easily wear down flow measurement equipment but also affect the accuracy of the measurement. Most existing filtration devices use filter screens, which are prone to clogging and require frequent cleaning. Furthermore, filtration can sometimes generate eddies or turbulence, causing uneven velocity distribution and resulting in large fluctuations in the flow meter readings, thus affecting measurement accuracy. Utility Model Content

[0003] This invention provides a water quantity detection device for water balance testing, which solves the problems existing in the background art.

[0004] This utility model relates to a water volume detection device for water balance testing, including an inlet pipe, an outlet pipe, and a flow meter connected to the outlet pipe. A filter flow stabilizing cylinder is fixedly connected to the flow meter and the inlet pipe via a flange. A supporting inner cylinder is provided inside the left end of the filter flow stabilizing cylinder, and a filter screen is provided inside the left end of the supporting inner cylinder. The filter screen has a right-concave spherical structure, and a right-concave sedimentation trough is provided in the middle of the filter screen. Multiple guide vanes are provided on the right side of the filter screen along the diameter direction of the supporting inner cylinder, and there is a spacing between adjacent guide vanes. A honeycomb-shaped flow straightening plate is provided on the right side of the guide vanes. A straight pipe is provided on the filter flow stabilizing cylinder on the right side of the supporting inner cylinder.

[0005] As a preferred option, the length of the straight pipe should be no less than three times the diameter of the flow meter orifice, to better ensure the stability of the fluid entering the flow meter.

[0006] As a preferred embodiment, an installation cylinder is provided on the inner support cylinder on the right side of the rectifier orifice plate. Multiple parallel flow stabilizing plates are evenly arranged in the inner hole of the installation cylinder along the front-to-back direction. There is a gap between adjacent flow stabilizing plates. The flow stabilizing plates perform the final smoothing and stabilization treatment on the fluid, eliminating the small fluctuations in the fluid, so that the outflowing fluid reaches a highly parallel and stable flow state, which is beneficial for subsequent water volume detection.

[0007] As a preferred embodiment, a support flange is provided on the outer wall of the left end of the inner support cylinder, and a support recess is provided on the flange that is fixed to the filter flow stabilizer cylinder to facilitate the fixing of the inner support cylinder. The inner support cylinder can also be removed after the filter flow stabilizer cylinder is removed, which facilitates the cleaning of the filter screen, flow guide plate and flow rectifier plate.

[0008] As a preferred embodiment, the inner hole at the left end of the inner support cylinder is funnel-shaped, and the left end of the inner support cylinder extends into the water inlet pipe, making it easier for fluid to enter the inner support cylinder.

[0009] As a preferred embodiment, a support ring is fixed in the inner hole at the left end of the inner cylinder, and a support flat edge supporting the filter screen is provided on the outer side of the support ring on the left side. Multiple fixing posts are fixed on the right side of the support flat edge, and multiple fixing holes with interference fit to the fixing posts are provided on the left side of the support ring, which facilitates the support and fixing of the filter screen and allows the filter screen to be disassembled.

[0010] As a preferred option, the guide vane is inclined, with the guide vane tilted at an angle of 30-45 degrees to the direction of fluid flow, resulting in better rectification effect.

[0011] As a preferred embodiment, a support recess is provided on the inner wall of the right end of the inner support cylinder, and a rectifier plate is supported on the support recess. There are no fewer than two rectifier plates. The mounting sleeve is provided on the side wall of the support recess. Spacers are provided between the mounting sleeve and the rectifier plate, and between adjacent rectifier plates. The right end of the inner support cylinder is threadedly connected to a clamping ring plate that presses the right end of the mounting sleeve. The rectifier plate and the mounting sleeve can be removed from the inner support cylinder for easy disassembly, cleaning and replacement.

[0012] This utility model has the following beneficial effects:

[0013] By installing a filter screen inside the left end of the supporting inner cylinder at the left end of the filter flow stabilizer, and setting a sedimentation tank on the filter screen, the filtered impurities can be collected in a concentrated manner, which can better prevent blockage and extend the cleaning and maintenance time. Furthermore, by installing a flow guide plate and a flow straightening plate on the right side of the filter screen, the fluid can be stabilized. After passing through a straight pipe, the fluid enters the flow meter for measurement. The fluid velocity distribution is more uniform, the value measured by the flow meter fluctuates less, and the measurement accuracy is higher. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 for Figure 1 Partial structural diagram;

[0016] Figure 3 This is a schematic diagram of the side structure of the rectifier orifice plate;

[0017] Figure 4 This is a schematic diagram of the side mounting structure of the flow stabilizer plate;

[0018] In the diagram: 1. Inlet pipe; 2. Outlet pipe; 3. Flow meter; 4. Filter flow stabilizer cylinder; 5. Support inner cylinder; 6. Guide vane; 7. Pressing ring plate; 8. Flow stabilizer plate; 9. Rectifying orifice plate; 10. Filter screen; 11. Support flange; 12. Straight pipe; 13. Mounting cylinder; 14. Spacer; 15. Support ring; 16. Impurity collection trough; 17. Fixing column; 18. Sealing ring; 19. Support recess. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Example 1, as Figures 1 to 4 As shown, this utility model is a water volume detection device for water balance testing, including an inlet pipe 1, an outlet pipe 2, and a flow meter 3 connected to the outlet pipe 2. A filter flow stabilizing cylinder 4 is fixedly connected between the flow meter 3 and the inlet pipe 1 via a flange. A supporting inner cylinder 5 is provided inside the left end of the filter flow stabilizing cylinder 4. A filter screen 10 is provided inside the left end of the supporting inner cylinder 5. The filter screen 10 has a right-concave spherical structure. A right-concave sedimentation trough 16 is provided in the middle of the filter screen 10. Multiple guide vanes 6 are provided on the right side of the filter screen 10 along the diameter direction of the supporting inner cylinder 5. There is a spacing between adjacent guide vanes 6. A honeycomb-shaped flow straightening plate 9 is provided on the right side of the guide vanes 6. A straight pipe 12 is provided on the filter flow stabilizing cylinder 4 on the right side of the supporting inner cylinder 5.

[0021] During operation, the fluid flows from the inlet pipe 1 and filters impurities as it passes through the filter screen 10. Since the filter screen 10 is a right-concave spherical structure, a right-concave impurity collection trough 16 is provided in the middle of the filter screen 10. Impurities are pushed by the fluid to flow into the middle impurity collection trough 16 and are collected in the impurity collection trough 16. When the filtered fluid passes through the guide plate 6, it initially guides the turbulent fluid, decomposing large-scale eddies and turbulence into smaller-scale flows, laying the foundation for the subsequent rectification process. Then, when it passes through the rectification orifice plate 9, it can further refine the fluid flow, dividing the fluid into multiple parallel micro-flows, effectively eliminating the remaining eddies and turbulence, and making the fluid gradually tend to a parallel and stable flow state. Then, after passing through the straight pipe 12, it smoothly enters the flow meter 3 for water volume detection. The detected fluid enters the outlet pipe 2 and flows out.

[0022] In Example 2, based on Example 1, the length of the straight pipe 12 is not less than three times the diameter of the flow meter 3 orifice. The length of the straight pipe 12 is less than five times the diameter of the flow meter 3 orifice. The filter flow stabilizer 4 and the supporting inner cylinder 5 are both made of high-strength, corrosion-resistant metal materials, such as 316L stainless steel. The guide vanes 6 are made of thin and tough metal sheets with polished surfaces to reduce fluid friction resistance. The rectifier orifice plate 9 is made of high-strength, lightweight engineering plastics, such as polyetheretherketone (PEEK).

[0023] An installation cylinder 13 is provided on the inner support cylinder 5 on the right side of the rectifier plate 9. Multiple parallel flow stabilizing plates 8 are evenly arranged in the inner hole of the installation cylinder 13 along the front-to-back direction, with a gap between adjacent flow stabilizing plates 8. When the fluid passes through the flow stabilizing plates 8, the fluid undergoes final smoothing and stabilization treatment, further eliminating minor fluctuations in the fluid and making the outflowing fluid reach a highly parallel and stable flow state.

[0024] A support flange 11 is provided on the outer wall of the left end of the inner support cylinder 5, and a support recess 19 that mates with the support flange 11 is provided on the flange that is fixed to the filter flow stabilizer cylinder 4. Before connecting the filter flow stabilizer cylinder 4 with the flange, the inner support cylinder 5 is placed inside the filter flow stabilizer cylinder 4, and the support flange 11 is supported by the support recess 19. After the flange is connected and fixed, the flange on the water inlet pipe 1 presses down on the support flange 11. A sealing ring 18 is provided on the flange on the outer side of the support flange 11.

[0025] The inner hole at the left end of the inner support cylinder 5 is funnel-shaped, and the left end of the inner support cylinder 5 extends into the water inlet pipe 1.

[0026] A support ring 15 is fixed in the inner hole at the left end of the inner cylinder 5. The outer side of the filter screen 10 is provided with a support flat edge supporting the left side of the support ring 15. Multiple fixing posts 17 are fixed on the right side of the support flat edge, and multiple fixing holes with interference fit to the fixing posts 17 are provided on the left side of the support ring 15. When installing the filter screen 10, the fixing posts 17 are directly aligned with the fixing holes and then pressed into the fixing holes for fixed installation.

[0027] The guide vane 6 is inclined, and the guide vane 6 is inclined at an angle of 30-45 degrees to the flow direction of the fluid.

[0028] A support recess 19 is provided on the inner wall of the right end of the inner support cylinder 5. A flow rectifier plate 9 is supported at the support recess 19. There are at least two flow rectifier plates 9. An installation cylinder 13 is fitted onto the side wall of the support recess 19. Spacers 14 are provided between the installation cylinder 13 and the flow rectifier plate 9, and between adjacent flow rectifier plates 9. A clamping ring plate 7 is threadedly connected to the right end of the inner support cylinder 5 to press the right end of the installation cylinder 13. After removing the filter flow stabilizer cylinder 4, and then removing the inner support cylinder 5, and then removing the filter screen 10 for cleaning, the clamping ring plate 7 can be unscrewed, and then the installation cylinder 13, flow rectifier plate 9, and spacers 14 can be removed to clean the flow rectifier plate 9 and the flow stabilizer plate 8.

[0029] 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.

[0030] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A water volume detection device for water balance testing, comprising an inlet pipe (1), an outlet pipe (2), and a flow meter (3) connected to the outlet pipe (2), characterized in that: A filter flow stabilizer cylinder (4) is fixedly connected to the flow meter (3) and the inlet pipe (1) by a flange. The filter flow stabilizer cylinder (4) has a supporting inner cylinder (5) inside the left end. The supporting inner cylinder (5) has a filter screen (10) inside the left end. The filter screen (10) is a spherical structure that is concave to the right. The filter screen (10) has a sediment collection trough (16) that is concave to the right in the middle. Multiple guide vanes (6) are provided on the right side of the filter screen (10) along the diameter direction of the supporting inner cylinder (5). There is a gap between adjacent guide vanes (6). A honeycomb-shaped flow straightening plate (9) is provided on the right side of the guide vane (6). A straight pipe (12) is provided on the filter flow stabilizer cylinder (4) on the right side of the supporting inner cylinder (5).

2. The water quantity detection device for water balance testing according to claim 1, characterized in that: The length of the straight tube (12) shall not be less than three times the diameter of the flow meter (3) tube hole.

3. The water quantity detection device for water balance testing according to claim 1, characterized in that: An installation cylinder (13) is provided on the inner support cylinder (5) on the right side of the rectifier plate (9). Multiple parallel flow stabilizers (8) are evenly arranged in the inner hole of the installation cylinder (13) along the front-back direction, and there is a gap between adjacent flow stabilizers (8).

4. The water quantity detection device for water balance testing according to claim 1, characterized in that: A support flange (11) is provided on the outer wall of the left end of the inner cylinder (5), and a support recess (19) that cooperates with the support flange (11) is provided on the flange that is fixed to the filter flow stabilizer cylinder (4).

5. The water quantity detection device for water balance testing according to claim 4, characterized in that: The inner hole at the left end of the inner support cylinder (5) is flared, and the left end of the inner support cylinder (5) extends into the water inlet pipe (1).

6. The water quantity detection device for water balance testing according to claim 4, characterized in that: A support ring (15) is fixed in the inner hole at the left end of the inner cylinder (5). The outer side of the filter screen (10) is provided with a support flat edge supporting the left side of the support ring (15). Multiple fixing posts (17) are fixed on the right side of the support flat edge. Multiple fixing holes with interference fit to the fixing posts (17) are provided on the left side of the support ring (15).

7. The water quantity detection device for water balance testing according to claim 1, characterized in that: The guide vane (6) is inclined, and the guide vane (6) is inclined at an angle of 30-45 degrees to the flow direction of the fluid.

8. The water quantity detection device for water balance testing according to claim 3, characterized in that: A support recess (19) is provided on the inner wall of the right end of the inner cylinder (5). A flow rectifier plate (9) is supported on the support recess (19). There are at least two flow rectifier plates (9). An installation cylinder (13) is sleeved on the side wall of the support recess (19). Spacers (14) are provided between the installation cylinder (13) and the flow rectifier plate (9) and between adjacent flow rectifier plates (9). A clamping ring plate (7) that clamps the right end of the installation cylinder (13) is threaded to the right end of the inner cylinder (5).

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