Low-pressure-loss rectifying structure and flowmeter device with same

Abstract

The utility model provides a low pressure loss rectification structure and a flowmeter device with the rectification structure, the low pressure loss rectification structure is connected to the flow inlet of the flowmeter device, and comprises a rectification body, a fluid steering piece and a fluid shunting piece; the rectification body is hollow and is provided with an inlet and an outlet; the fluid steering part is provided with a closed end and an open end, a plurality of through holes are formed in the fluid steering part, the fluid steering part is arranged on the rectifying body and located in the side close to the outlet of the rectifying body, so that the closed end faces the inlet of the rectifying body, and the open end is connected to the outlet of the rectifying body; the fluid dividing piece faces the inlet of the rectifying body and is fixedly arranged outside the closed end of the fluid steering piece, and the fluid dividing piece faces the inlet of the rectifying body and is a blunt end body.

Description

Technical Field

[0001] The utility model relates to a flow control element, in particular to a low-pressure-loss rectification structure and a flow meter device with the rectification structure. Background Art

[0002] Thermal mass flowmeters (or paddle wheel flowmeters) are insertion-type flowmeters, and their measurement accuracy can vary depending on their installation location. Traditionally, the average velocity of a pipeline fluid reaches its maximum value at the center of the pipe, while the velocity approaches the average velocity along the circumference of the pipe wall. Thermal mass flowmeters utilize temperature differences to convert heat dissipation into pipeline flow velocity. Their advantages include a simple and compact design that takes up little space, stainless steel carbon rods that resist corrosion, and an insertion-type locking thread design for easy installation. Their disadvantages are that their measurement accuracy is limited by their underlying principle. In high-temperature flow environments, pipeline flow develops from laminar flow to turbulent flow, resulting in lower measurement accuracy compared to other flowmeter principles.

[0003] In existing technologies, accurate measurement requires sufficient front and rear straight pipe sections to ensure a uniform flow field and stable measurement. However, for some specialized applications, such as direct liquid cooling (DLC) for AI servers, installation space is limited, making it impossible to provide the required front and rear straight pipe sections. Consequently, insert-type thermal mass flowmeters or paddlewheel flowmeters cannot provide sufficiently accurate measurement.

[0004] Furthermore, in AI liquid cooling applications, it is important to pay attention to pressure loss within the entire pipeline, including the flow meter, to avoid increasing pump power output and achieve better PUE (Power Utility Efficiencies). Utility Model Content

[0005] The main purpose of the present invention is to provide a low-pressure-loss rectifier structure and a flowmeter device having the rectifier structure, which is used to be arranged upstream or at the front end of the flowmeter, can shorten the length of its straight section to reduce the required installation space, and can improve measurement accuracy and reduce noise.

[0006] In order to achieve the above-mentioned objectives, the present invention provides a low-pressure-loss rectifier structure, comprising a rectifier body, a fluid diverter, and a fluid splitter; the rectifier body is hollow and has an inlet and an outlet; the fluid diverter has a closed end and an open end, and is provided with a plurality of through holes, and the fluid diverter is arranged in the rectifier body and is located on a side adjacent to its outlet, so that the closed end faces the inlet of the rectifier body and the open end is connected to the outlet of the rectifier body; the fluid splitter is fixedly arranged outside the closed end of the fluid diverter facing the inlet of the rectifier body, and has a blunt head on the inlet of the fluid splitter facing the rectifier body.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a flow meter device with the rectification structure, including a flow sensor, a sensing pipe section, and the above-mentioned low-pressure-loss rectification structure, wherein the sensing pipe section has an inlet and an outlet, and the flow sensor is arranged between the inlet and the outlet to sense the flow in the sensing pipe section, and the outlet of the rectification body is connected to the inlet of the sensing pipe section. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the internal structure of the first embodiment of the utility model;

[0009] Figure 2 A dynamic schematic diagram is used for the first embodiment of the present utility model;

[0010] Figure 3 A dynamic schematic diagram is used for the second embodiment of the present utility model;

[0011] Figure 4 A dynamic schematic diagram is used for the third embodiment of the present utility model;

[0012] Reference numerals:

[0013] 1: Low voltage loss rectifier structure

[0014] 10: Rectifier body

[0015] 10a: expansion section

[0016] 10b: Tightening section

[0017] 100: Entrance

[0018] 101:Exit

[0019] 11: Fluid steering parts

[0020] 110: Closed end

[0021] 111: Open end

[0022] 112:Through hole

[0023] 12: Fluid diverter

[0024] 13: Front end rectifier

[0025] 130: Axially distributed straight holes

[0026] 2: Flow meter device

[0027] 2a: Flow sensor

[0028] 20: Sensing pipe section

[0029] 20a: Sensing rod

[0030] 200: Inlet

[0031] 201: Outlet

[0032] 21: Output tube

[0033] 3: Input tube. DETAILED DESCRIPTION

[0034] In order to further disclose the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0035] See also Figure 1 and Figure 2 , respectively, are a schematic diagram of the internal structure and a dynamic diagram of the first embodiment of the present invention. The present invention provides a low-pressure-loss rectifier structure and a flowmeter device having the rectifier structure. The low-pressure-loss rectifier structure 1 can be applied to a flowmeter device 2. The rectifier structure 1 includes a rectifier body 10, a fluid diverter 11, and a fluid diverter 12.

[0036] The rectifier body 10 is hollow and has an inlet 100 and an outlet 101. Figure 2 As shown, the inlet 100 can be used to connect a fluid input pipe 3, and the outlet 101 is used to connect the flow meter device 2; Figures 2 to 4In the embodiments, the flow meter device 2 is an insertion type flow meter, but is not limited to the aforementioned types or types of flow meters. Other types of flow meters such as thermal mass flow meters, paddle wheel flow meters, electromagnetic flow meters, ultrasonic flow meters, clamp-tube ultrasonic flow meters, current flow meters, differential pressure flow meters, turbine flow meters, vortex flow meters, fluid dynamic flow meters, or in-line flow meters can also be used. Specifically, the flow meter device 2 includes a flow sensor 2a and a sensing tube section 20. The sensing tube section 20 has an inlet 200 and an outlet 201. The flow sensor 2a is used to sense the flow of the fluid flowing through the sensing tube section 20 and may include a sensing rod 20a disposed within the sensing tube section 20 and located between the inlet 200 and the outlet 201. The outlet 101 of the rectifier body 10 is connected to the inlet 200 of the sensing tube section 20. Therefore, before the fluid to be sensed enters the sensing tube section 20 from the inlet 200, it can pass through the low-pressure-loss rectifier structure 1, making the flow field of the fluid entering the sensing tube section 20 more consistent, uniform, and stable. In addition, the outlet 201 of the sensing tube section 20 can be further connected to an output pipe 21 for transporting the fluid to its destination.

[0037] The fluid diverter 11 may be cylindrical and have a closed end 110 and an open end 111. The fluid diverter 11 is disposed within the rectifier body 10 on a side adjacent to the outlet 101 thereof, with the closed end 110 facing the inlet 100 of the rectifier body 10 and the open end 111 connected to the outlet 101 of the rectifier body 10. Furthermore, the fluid diverter 11 is provided with a plurality of through-holes 112 for communicating with the rectifier body 10. In the embodiment of the present invention, the through-holes 112 are arranged from the closed end 110 toward the open end 111, in descending order of size.

[0038] The fluid flow dividing member 12 is a blunt body, and its cross section can be conical, masonry-shaped or semicircular, so as to separate the axial flow field and reduce the flow field from the highest center velocity to the average flow field around the pipe circumference. The fluid diverter 12 is fixedly mounted outside the closed end 110 of the fluid redirecting member 11, facing the inlet 100 of the rectifier body 10, so that the fluid entering through the inlet 100 of the rectifier body 10 can flow through the fluid diverter 12 toward the periphery of the rectifier body 10 (i.e., the circumferential area between the rectifier body 10 and the fluid redirecting member 11), thereby achieving a low-pressure-loss rectification effect. This can reduce the length requirements of the front and rear sections of the rectifier in the straight pipe portion, and allow the fluid to be forced to enter the fluid redirecting member 11 through the through holes 112 therein. After obtaining a uniform flow field, the fluid flows into the sensing pipe section 20 of the flow meter device 2 and is measured by the flow sensing rod 2a, thereby improving the measurement accuracy of the flow sensing rod 2a and achieving the purpose of precise measurement and noise reduction.

[0039] In summary, the present invention further comprises a front fairing plate 13 disposed between the inner portion of the fairing body 10 and the fluid diverting member 11. The front fairing plate 13 is provided with a plurality of axially distributed straight holes 130. Furthermore, the inner wall of the fairing body 10 may have an expansion section 10a formed near the inlet 100, and a contraction section 10b formed near the outlet 101. The front fairing plate 13 is disposed between the expansion section 10a and the contraction section 10b to help accelerate the flow through the front fairing plate 13 and force the fluid into the fluid diverting member 11 by the contraction section 10b.

[0040] Therefore, through the above-mentioned structural composition, the low-pressure-loss rectification structure of the present invention and the flowmeter device having the rectification structure can be obtained.

[0041] Furthermore, if Figure 1 and Figure 2 As shown, the fluid diverter 12 may be provided with a vortex structure 120 on its blunt body. The vortex structure 120 may be in the form of a diffused straight sheet; or Figure 3 and Figure 4 As shown, it can also be in the shape of a diffuse curved sheet or an arc sheet to increase its forced diversion effect. The above can cause the fluid to flow through the blunt body, and the changes in the surface of the vortex structure 120 can achieve and improve the rectification effect.

[0042] Therefore, the present invention is primarily a low-pressure-loss rectifier structure. In addition to being compatible with the front-end rectification of the aforementioned insertion-type flowmeters, it can also be used with all flowmeters whose measurements are affected by flow field distribution, including clamp-tube ultrasonic, electromagnetic, current, differential pressure, turbine, vortex, and fluid dynamic in-line flowmeters. The present invention's low-pressure-loss rectifier structure rectifies unstable flow fields at the front end of the flowmeter, such as at bends and behind valves, allowing the flow field to quickly stabilize and shortening the length of the flowmeter's piping. The present invention's low-pressure-loss rectifier structure can be independent of the flowmeter's upstream side or integrated with the aforementioned insertion-type or in-line flowmeters to form an integrated flowmeter device.

[0043] Although the present invention has been described with reference to its embodiments, it should be understood that the invention is not limited to its details; various substitutions and modifications have been proposed in the foregoing description, and those skilled in the art will think of other substitutions and modifications; therefore, all such substitutions and modifications are intended to be included within the scope of the present invention.

Claims

1. A low-voltage-loss rectifier structure, characterized in that: include: A rectifier body, which is hollow inside and has an inlet and an outlet; a fluid diverter having a closed end and an open end, and having a plurality of through holes formed therein, and disposed within the rectifier body on a side adjacent to the outlet, such that the closed end faces the inlet of the rectifier body and the open end is connected to the outlet of the rectifier body; and A fluid diverter is fixedly arranged outside the closed end of the fluid diverter toward the inlet of the rectifying body, and the fluid diverter is in the form of a blunt head toward the inlet of the rectifying body.

2. The low-voltage-loss rectifier structure according to claim 1, wherein: The fluid diverter is in the form of a cylinder.

3. The low-voltage-loss rectifier structure according to claim 1, wherein: The through holes are arranged from the closed end toward the open end and are arranged from large to small.

4. The low-voltage-loss rectifier structure according to claim 1, wherein: The cross section of the blunt head of the fluid diverter is conical, masonry-shaped or semicircular.

5. The low-voltage-loss rectifier structure according to claim 1, wherein: The fluid diverter is provided with a vortex structure on the blunt body.

6. The low-voltage-loss rectifier structure according to claim 5, wherein: The vortex structure is in the shape of a diffused straight sheet, a curved sheet or an arc-shaped sheet.

7. The low-voltage-loss rectifier structure according to claim 1, wherein: It further comprises a front end rectifying plate, and the front end rectifying plate is provided with a plurality of axially distributed straight holes and is arranged in the rectifying body and between the fluid turning piece.

8. The low-voltage-loss rectifier structure according to claim 7, wherein: The rectifying body forms a tightening section on the inner wall adjacent to the outlet.

9. The low-voltage-loss rectifier structure according to claim 7 or 8, characterized in that: The rectifying body forms an expansion section on the inner wall adjacent to the inlet.

10. A flow meter device, characterized in that: include: a flow sensor; a sensing pipe section having an inlet and an outlet, wherein the flow sensor is disposed between the inlet and the outlet to sense the flow in the sensing pipe section; and A low-pressure-loss rectifier structure according to any one of claims 1 to 9, wherein the outlet of the rectifier body is connected to the inlet of the sensing tube segment.

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