Portable hydraulic characteristic testing equipment for liquid cooling equipment

Abstract

The utility model discloses portable liquid cooling equipment hydraulic characteristic testing equipment, which comprises a fluid connector, a pipeline structure and a pressure sensor (or a differential pressure sensor), the rear end of the fluid connector is provided with a plug conversion block, the rear end of the plug conversion block is provided with a primary rectifier tube, the rear end of the primary rectifier tube is provided with a secondary rectifier tube, and the rear end of the secondary rectifier tube is provided with a pressure sensor (or a differential pressure sensor). According to the flow resistance testing system, liquid cooling is achieved through series connection of the flow measuring instrument and the pressure measuring instrument and separation of the measuring instrument and the liquid cooling pipeline, and the light weight of the flow resistance testing system is achieved. According to the invention, the light weight of the test system is realized, the flow resistance of the test system is reduced, and the measurement precision is improved. According to the invention, the plug conversion block of the adapter plate is connected with the fluid connector, so that the plug replacement process of the liquid cooling test equipment for different to-be-tested equipment is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic characteristic testing, in particular to a portable liquid cooling equipment hydraulic characteristic testing device. Background Art

[0002] Liquid-cooled electronic equipment in engineering projects often requires equipment flow resistance data during the design phase in order to adapt to the piping system of the host. Simulations will be performed in the early stages of the design to achieve the required values, but after processing is completed, flow resistance tests will be performed on the actual objects to determine whether they meet the required values.

[0003] Flow resistance is used to describe the resistance encountered by fluid flowing in a certain section of pipeline. It refers to the static pressure loss when liquid enters and exits the equipment in a stable fluid loop. Since liquid flow is caused by internal friction, the flow channel boundary also generates friction. At the same time, due to the shape of the pipeline, changes in the direction of flow and other obstacles, these will cause the fluid to encounter resistance during the flow process, that is, flow resistance.

[0004] At present, liquid-cooled electronic equipment has certain flow resistance requirements for the liquid cooling plate of the equipment in order to adapt to the overall design stage. This requires designers to measure the flow resistance of the equipment at different flow rates after the product is processed. The accuracy of the flow resistance test depends on the system accuracy of the flow resistance meter itself on the one hand, and on the calibration of the instrument using the standard flow resistance on the other.

[0005] At present, the industry often uses pumps, flow meters, liquid cooling sources, pressure gauges, pipelines and other equipment in series to build test equipment; during the calibration stage, only the accuracy of each instrument is checked. However, the current situation is:

[0006] 1. The flow resistance test equipment is large. If the flow resistance of the instrument to be tested is small during measurement, it will cause inaccurate accuracy.

[0007] 2. The test bench is often very large due to the large number of instruments and is difficult to miniaturize. Measurements can only be performed in laboratories with testing conditions.

[0008] 3. It needs to be composed of a liquid cooling source, a pressure gauge, and a flow meter. The equipment is large and difficult to move. The industry has a great demand for miniaturization of hydraulic property testing equipment.

[0009] 4. During the test, the test system needs to replace the liquid cooling connector that matches the device under test in order to match it. During the replacement process, there is often a great risk of large-scale leakage of the coolant in the system, and replacing the plug is extremely inconvenient. Utility Model Content

[0010] In order to overcome the deficiencies of the prior art, the utility model solves the problem that the flow resistance test equipment in the prior art is relatively large and will cause insufficient accuracy when the flow resistance to be measured is smaller than the system flow resistance.

[0011] A portable liquid cooling equipment hydraulic characteristics testing device comprises a fluid connector, a plug conversion block is installed at the rear end of the fluid connector, a primary rectifier is arranged at the rear end of the plug conversion block, a secondary rectifier is arranged at the rear end of the primary rectifier, the secondary rectifier is connected to the front end of a box body, the rear end of the box body is connected to the plug conversion block, and the plug conversion block at the rear end of the box body is connected to the fluid connector.

[0012] Furthermore, the box body is a rectangular frame structure, a circular through hole is provided at the center of the box body, and a rectangular groove is provided at the top of the box body.

[0013] Furthermore, a pressure gauge is arranged on the top of the box body, and no less than three pressure gauges are arranged on the top of the box body along the horizontal center line.

[0014] Furthermore, an electrical connector is arranged inside the rectangular groove at the top of the box body.

[0015] Furthermore, a rectangular cover is provided on the top of the box body, and a rectangular groove is reserved at the bottom of the cover.

[0016] Beneficial effects of the utility model:

[0017] 1. The present application realizes the lightweight of the flow resistance test system by connecting the flow measuring instrument and the pressure measuring instrument in series and separating the measuring instrument and the liquid cooling pipeline to realize liquid cooling.

[0018] 2. This application reduces the flow resistance of the test system and improves the measurement accuracy by achieving lightweight test system.

[0019] 3. The present application is connected to the fluid connector via an adapter board plug conversion block, thereby simplifying the plug replacement process of the liquid cooling test equipment for different devices under test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a portable liquid cooling equipment hydraulic characteristics test equipment;

[0021] Figure 2 It is a schematic diagram of the principle of a portable liquid cooling equipment hydraulic characteristics test equipment;

[0022] In the figure: 1-fluid connector, 2-plug conversion block, 3-primary rectifier, 4-secondary rectifier, 5-box, 6-cover, 7-electrical connector, 8-pressure gauge. DETAILED DESCRIPTION

[0023] The following is an explanation of the implementation of the present invention by specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to the implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details will be included in the following description. The present utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. It should be noted that in this specification, similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures.

[0024] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "set", "connected", "connected" and similar words should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances. The directions or positional relationships indicated by “upper”, “lower”, “left”, “right”, “inside”, “bottom”, etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] In this embodiment, as shown in the attached Figure 1As shown, a portable liquid cooling equipment hydraulic characteristics testing equipment includes a fluid connector 1, a plug conversion block 2 is installed at the rear end of the fluid connector 1, a primary rectifier tube 3 is arranged at the rear end of the plug conversion block 2, a secondary rectifier tube 4 is arranged at the rear end of the primary rectifier tube 3, the secondary rectifier tube 4 is connected to the front end of a box body 5, the rear end of the box body 5 is connected to the plug conversion block 2, the plug conversion block 2 at the rear end of the box body 5 is connected to the fluid connector 1, the end of the fluid connector 1 close to the primary rectifier tube 3 is the fluid connector 1 socket, and the end away from the primary rectifier tube 3 is the fluid connector 1 plug.

[0027] Furthermore, the box body 5 is a rectangular frame structure, a circular through hole is provided at the center thereof, and a rectangular groove is provided at the top of the box body 5.

[0028] Furthermore, a pressure gauge 8 is arranged on the top of the box body 5, and no less than three pressure gauges 8 are arranged on the top along the horizontal center line direction.

[0029] Furthermore, an electrical connector 7 is provided inside the rectangular groove at the top of the box body 5 .

[0030] Furthermore, a rectangular cover plate 6 is provided on the top of the box body 5, and a rectangular groove is reserved at the bottom of the cover plate 6.

[0031] As attached Figure 2 As shown, the working principle of this application is as follows:

[0032] The present application adopts the Venturi principle and designs three pressure monitoring points in a section of pipeline. The flow through this section of pipeline and the static pressure change (ie flow resistance) at this point are measured by three pressure sensors.

[0033] This application uses the commonly used TSA connector in the industry to connect to the liquid cooling system. To adapt to liquid cooling devices of different calibers, the adapter board plug conversion block is connected to the liquid cooling connector, and the opposite side of the adapter board plug conversion block is connected to this device. After the fluid flows in, it passes through two guides to form a laminar flow through the test point to reduce the error.

[0034] Venturi flowmeters have been used in industry for a long time. As shown in the figure above, by analyzing the A and B sections, we can get the following equation from Bernoulli:

[0035] Right now

[0036] Due to the stable flow in the pipeline, the internal flow field does not change with time, and the flow rates of sections A and B are equal, then:

[0037]

[0038] Combining the two equations, we can get:

[0039]

[0040] because:

[0041]

[0042] but:

[0043]

[0044] Simplified:

[0045]

[0046] Easy traffic:

[0047]

[0048] According to the model, we can get some existing parameters and separate the variables in the formula:

[0049]

[0050]

[0051] Δh=(P A / ρg-P B / ρg)+(h A -h B )

[0052] If this device is installed horizontally at the entrance of the device under test, then (h A -h B )=0;

[0053] If the device is installed vertically at the entrance of the device under test, then (h A -h B )=L A-B ;

[0054] Due to the resistance loss along the way, there is a certain difference between the measured flow rate and the actual flow rate. After the design is completed, the correction coefficient μ will be determined through experimental calibration, that is:

[0055] (Note: P: static pressure at that point, ρ: medium density, v: flow velocity at that point, h: height at that point, Q: flow rate, S: cross-sectional area, g: gravitational acceleration at that point, μ: correction coefficient, determined by experiment.)

[0056] The flow rate of the equipment can be obtained by testing the static pressure at points AB.

[0057] By comparing the static pressure changes at point C at 0 flow and at different flow rates, the flow resistance of the device under test at the flow rate can be obtained. At the same time, the static pressure change at point C can be calibrated by the total pressure change at points AB, obtaining more accurate flow resistance data.

[0058] This application measures the static pressure at three points ABC through three pressure sensors ABC, and transmits the static pressure data to the electrical connector via electrical signals.

[0059] The voltage and current changes at points ABC are collected through single-chip microcomputer or data acquisition instrument programming or a specially matched handheld data acquisition device and converted into corresponding static pressure data through calculation;

[0060] According to the test temperature, the density parameters at different temperatures are obtained, and the density parameters, gravity acceleration, correction coefficient and static pressure data obtained by current and voltage conversion are substituted to obtain the flow resistance of the system through calculation and output.

[0061] Beneficial effects of the utility model:

[0062] 1. The present application realizes the lightweight of the flow resistance test system by connecting the flow measuring instrument and the pressure measuring instrument in series and separating the measuring instrument and the liquid cooling pipeline to realize liquid cooling.

[0063] 2. This application reduces the flow resistance of the test system and improves the measurement accuracy by achieving lightweight test system.

[0064] 3. The present application is connected to the fluid connector via an adapter board plug conversion block, thereby simplifying the plug replacement process of the liquid cooling test equipment for different devices under test.

[0065] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable liquid cooling equipment hydraulic characteristics testing device, characterized in that: The invention comprises a fluid connector (1), a plug conversion block (2) is installed at the rear end of the fluid connector (1), a primary rectifier tube (3) is arranged at the rear end of the plug conversion block (2), a secondary rectifier tube (4) is arranged at the rear end of the primary rectifier tube (3), the secondary rectifier tube (4) is connected to the front end of a box body (5), the rear end of the box body (5) is connected to the plug conversion block (2), and the plug conversion block (2) at the rear end of the box body (5) is connected to the fluid connector (1); the end of the fluid connector (1) close to the primary rectifier tube (3) is a fluid connector (1) socket, and the end away from the primary rectifier tube (3) is a fluid connector (1) plug.

2. A portable liquid cooling equipment hydraulic characteristics testing device according to claim 1, characterized in that: The box body (5) is also a rectangular frame structure, a circular through hole is provided at the center thereof, and a rectangular groove is provided at the top of the box body (5).

3. A portable liquid cooling equipment hydraulic characteristics testing device according to claim 2, characterized in that: The box body (5) is also provided with a pressure gauge (8) at the top thereof, and no less than three pressure gauges (8) are provided at the top thereof along the horizontal center line direction.

4. A portable liquid cooling equipment hydraulic characteristics testing device according to claim 2, characterized in that: The box body (5) further comprises an electrical connector (7) disposed inside the rectangular groove at the top thereof.

5. The portable liquid cooling equipment hydraulic characteristics testing device according to claim 2, characterized in that: The box body (5) further comprises a rectangular cover plate (6) disposed on the top thereof, and a rectangular groove is reserved at the bottom of the cover plate (6).

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