CN114667035B - Flow resistance adjustable simulation leads to fluidic device - Google Patents

Flow resistance adjustable simulation leads to fluidic device Download PDF

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CN114667035B
CN114667035B CN202210212371.0A CN202210212371A CN114667035B CN 114667035 B CN114667035 B CN 114667035B CN 202210212371 A CN202210212371 A CN 202210212371A CN 114667035 B CN114667035 B CN 114667035B
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flow resistance
flow
box body
control
fluid
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CN114667035A (en
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李应杰
叶元鹏
冯志新
梁佳荣
肖百川
凌娅
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CETC 29 Research Institute
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20281—Thermal management, e.g. liquid flow control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
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Abstract

The invention relates to the technical field of electronic module heat dissipation and discloses a flow resistance adjustable simulation fluid passing device which comprises a box body, a flow resistance adjusting valve arranged on the upper surface of the box body, a lateral plug arranged on the side surface of the box body and a fluid connector connected with the lateral plug, wherein the flow resistance adjusting valve can adjust the flow resistance of fluid passing through the interior of the box body. The invention solves the problems of low flow fine control degree, difficulty in accurately supplying fluid to the functional module, inconvenient use and the like in the prior art.

Description

Flow resistance adjustable simulation leads to fluidic device
Technical Field
The invention relates to the technical field of electronic module heat dissipation, in particular to a flow resistance adjustable analog fluid passing device.
Background
With the development of electronic equipment technology, the integration level of electronic equipment is higher and higher, and electronic modules adopting a liquid cooling heat dissipation mode are widely applied. The modules are generally installed in a centralized manner in a rack capable of providing a fluid cooling and heat dissipation environment, and the flow resistance of each functional module is matched to ensure that the cooling liquid flow of each module is reasonably distributed. However, when the electrical performance of the module is debugged or tested, only a small number of modules are often installed in the test rack, and for the use scene of such a small number of modules, the fluid supply device is difficult to provide the cooling liquid meeting the flow demand, so that the performance of the electronic module cannot be accurately checked, and even the liquid cooling passage fails. The above practical problems have greatly hindered the production and debugging of electronic modules in the liquid-cooled heat dissipation system, and limited productivity.
Analog liquid passing devices with configurable flow resistance are mentioned and used in advance in the prior art. For example: the invention of application number 201120488205.0 provides a module flow resistance equivalent device, which can equivalent module flow resistance in a local flow range, but needs to be provided with valve cores with different apertures, so that the use is inconvenient, and meanwhile, the device structure cannot be directly matched with a functional module, and the debugging and test work of the electrical performance of the functional module cannot be completed in an auxiliary manner.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a flow resistance adjustable simulation fluid passing device, which solves the problems of low flow fine control degree, difficulty in accurately supplying fluid to a functional module, inconvenient use and the like in the prior art.
The invention solves the problems by adopting the following technical scheme:
the flow resistance adjustable simulation fluid device comprises a box body, a flow resistance adjusting valve arranged on the upper surface of the box body, a lateral plug arranged on the side surface of the box body and a fluid connector connected with the lateral plug, wherein the flow resistance adjusting valve can adjust the flow resistance of fluid passing through the interior of the box body.
As a preferable technical scheme, the two side surfaces of the box body are provided with a lateral plug installation interface and a fluid connector installation interface, the upper surface of the box body is provided with a flow resistance adjusting valve installation interface, a first sealing ring is arranged in the flow resistance adjusting valve installation interface, and a fluid main runner is arranged in the box body.
As an optimized technical scheme, the lateral plug is provided with a through-flow column and a mounting flange, and a second sealing ring is sleeved outside the through-flow column.
As a preferable technical scheme, an auxiliary flow channel is arranged in the through-flow column.
As a preferable technical scheme, the flow resistance regulating valve is provided with four groups of control flow passages with different specifications, which are respectively marked as a first control flow passage, a second control flow passage, a third control flow passage and a fourth control flow passage, and each group of control flow passages is controlled by one flow resistance regulating gear.
As a preferable technical scheme, the shape of the first control flow passage and the third control flow passage is straight-through cylindrical.
As a preferred technical solution, the second control flow passage has a diameter-abrupt structure.
As a preferable technical scheme, the fourth control flow passage has an abrupt diameter change structure.
As a preferable technical scheme, the lower limit of flow resistance when the fluid passes through the first control flow passage, the second control flow passage, the third control flow passage and the fourth control flow passage is respectively 40KPa, 50KPa, 60KPa and 80KPa.
As a preferable technical scheme, the diameter of the main runner is 6mm, and the diameter of the auxiliary runner is 2mm.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the flow resistance characteristics of the functional module to be debugged, the simulation fluid-passing device is arranged in the test rack in an array mode, and meanwhile, the flow resistance of the device is configured in a personalized mode, so that accurate fluid supply to the functional module in the debugging and testing processes is realized, effective assessment on the performance of the functional module is guaranteed, and meanwhile, the production efficiency is improved;
(2) According to the invention, the flow resistance can be configured according to different requirements, so that the fine control of the coolant flow of the functional module is realized, the performance of the functional module is effectively checked, and the production efficiency is improved;
(3) The flow resistance matching design method of the invention is portable and the shape is expandable to realize the simulation fluid passing devices with different forms.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a second schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of the structure of the case of the present invention;
FIG. 4 is a second schematic diagram of the structure of the case of the present invention;
FIG. 5 is a schematic view of the structure of the lateral plug of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5;
fig. 7 is a schematic structural view of a flow resistance adjusting valve of the present invention;
FIG. 8 is a longitudinal cross-sectional view of FIG. 7;
fig. 9 is a schematic view of coolant flow when using the present invention.
The reference numerals and corresponding part names in the drawings: 10-box body, 101-side plug installation interface, 102-flow resistance regulating valve installation interface, 1021-sealing groove and sealing ring, 103-fluid connector installation interface, 104-main runner, 20-side plug, 201-through flow column, 202-installation flange, 203-sealing groove and sealing ring, 204-runner, 30-flow resistance regulating valve, 301-first control runner, 302-second control runner, 303-third control runner, 304-fourth control runner and 40-fluid connector.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Example 1
Based on the above problems, as shown in fig. 1 to 9, it is necessary to provide a simulation fluid-passing device with an adjustable flow resistance in a local range, according to the flow resistance characteristics of a functional module to be debugged, the simulation fluid-passing device is installed in an array in a test rack, and meanwhile, the flow resistance of the device is configured individually, so that accurate fluid supply is performed on the functional module in the debugging and testing processes, effective assessment is ensured on the performance of the functional module, and meanwhile, the production efficiency is improved.
The invention aims to provide a simulation fluid passing device with adjustable flow resistance in a local range, which ensures accurate fluid supply to a functional module in the debugging and testing process by reasonably configuring the flow resistance of the device.
The aim of the invention is achieved by the following technical scheme:
a flow resistance adjustable analog fluid passing device is composed of a box body 10, a lateral plug 20, a flow resistance regulating valve 30 and a fluid connector 40.
Further, the box body 10 is a main body structure of the device, and is provided with a mounting interface of the lateral plug 20 in the left-right lateral direction, a mounting interface of the flow resistance regulating valve 30 in the front, and a mounting interface of the fluid connector 40 in the left-right lateral direction; the main fluid flow channel is arranged in the box body 10, and forms a complete fluid passage together with the flow channel of the lateral plug 20, the flow resistance regulating valve 30 and the fluid connector 40.
Further, the lateral plug 20 performs primary flow resistance adjustment by setting an adaptive flow path diameter according to the flow resistance range to be adapted, so as to match with the lower flow resistance index of the analog fluid device.
Further, the flow resistance regulating valve 30 is used for performing secondary fine adjustment on the flow resistance of the analog fluid passing device; according to the principle that the flow of the pipeline with suddenly reduced cross section generates local pressure loss, a series of steps with suddenly changed diameters are arranged on the fluid channel, so that the preset flow resistance is generated on the fluid channel of the flow resistance regulating valve 30; the flow resistance regulating valve 30 can be provided with diameter abrupt change step flow passages with different specifications to form different regulating gears, so that different flow resistances are generated. By adjusting the gear of the flow resistance regulating valve 30, flow resistance configuration of the simulated fluid passing device is realized; further, the flow resistance regulating valve 30 is provided with a single-channel flow passage with a mirror symmetry structure, so that the characteristic that the flow resistance of the fluid passing device is irrelevant to the inlet and outlet directions is realized.
Further, the fluid connectors 40 are disposed at the left and right side ends of the case 10, and are configured to be abutted with the frame fluid connectors 40, so as to realize the fluid passage penetration.
Further, the specific design steps are as follows:
step S1: parameters such as the flow Q of the device, the flow resistance ranges Rmin-Rmax to be adjusted, the gear number N and the like are determined, and the parameters can be configured according to different requirements;
step S2: according to the requirements of the lower flow resistance limit Rmin, determining the main flow channel diameter D0 of the box body 10 and the flow channel diameter D1 of the lateral plug 20 through numerical simulation;
step S3: determining the specification number of the fluid channels of the flow resistance regulating valve 30 according to the requirement of the flow resistance blocking number N, wherein the diameter of the fluid channel for matching the lower limit of the flow resistance is the same as the diameter of the main channel of the box body 10; further, if the number of gears N is greater than 4, two flow resistance adjusting valves 30 are configured, and so on, more flow resistance gears are configured in combination by the flow passage specifications of the plurality of adjusting valves.
Furthermore, the design method can be transplanted according to different appearance requirements so as to realize the simulation fluid passing device with different geometric forms.
According to the invention, the flow resistance can be configured according to different requirements, so that the fine control of the coolant flow of the functional module is realized, the performance of the functional module is effectively checked, and the production efficiency is improved;
the flow resistance matching design method of the invention is portable and the shape is expandable to realize the simulation fluid passing devices with different forms.
Example 2
As further optimization of embodiment 1, this embodiment includes all the technical features of embodiment 1, as shown in fig. 1 to 9, and in addition, this embodiment further includes the following technical features:
the flow resistance adjustable analog fluid passing device comprises a box body 10, a lateral plug 20, a flow resistance regulating valve 30 and a fluid connector 40.
The relevant parameters are shown in table 1:
table 1 design parameters table for analog fluid communication device
Figure BDA0003527446660000051
The box body 10 is a main structure of the device, a lateral plug mounting interface 101 is arranged in the left side and the right side, a flow resistance regulating valve mounting interface 102 is arranged in the front, a sealing groove is arranged on the surface of the flow resistance regulating valve mounting interface, a first sealing ring 1021 is arranged, the tightness of a connecting position is ensured in an end face sealing mode, a fluid connector mounting interface 103 is arranged in the left side and the right side, and a fluid main flow channel 104 is arranged in the box body, wherein d0=6mm.
The lateral plugs 20 are respectively arranged at the left side and the right side of the box body 10. The lateral plug is provided with a through-flow column 201 and a mounting flange 202, the outer surface of the through-flow column is provided with a sealing groove, a second sealing ring 203 is arranged in the sealing groove, the tightness of the joint is ensured in a radial sealing mode, a flow channel 204 with the diameter D1=2mm is arranged in the lateral plug, and the requirements of the lower flow resistance limit Rmin=40KPa of the simulated liquid passing device are matched by combining the main flow channel 104 of the box body 10.
The flow resistance regulating valve 30 is provided with 4 groups of flow passages with different specifications, and correspondingly forms 4 flow resistance secondary fine regulating gears.
Further, the first control flow channel 301 is a straight cylinder, and the same diameter D0 as the main flow channel 104 of the box body 10 is 6mm, so as to match the requirement of the lower flow resistance limit rmin=40 KPa of the analog liquid passing device;
further, the second control flow channel 302 is of a symmetrical structure, wherein one side of the second control flow channel is provided with a step hole from 4mm through flow channel abrupt change to 2mm through flow channel, and the step hole and the main flow channel 104 with the 6mm through diameter of the box body 10 are paired to form a two-time flow channel section abrupt change structure so as to form 10KPa local flow resistance, and the flow resistance of the simulated liquid passing device is regulated to 50KPa;
further, the third control flow channel 303 is a straight cylinder with a diameter of 2mm, and is matched with the main flow channel 104 with the diameter of 6mm of the box body 10 to form a primary flow channel section mutation structure so as to form a local flow resistance of 20KPa, and the flow resistance of the analog liquid-passing device is adjusted to 60KPa;
further, the fourth control flow channel 304 is of a symmetrical structure, wherein one side is provided with a step hole from a 3mm through flow channel to a 1.5mm through flow channel, and the step hole and the main flow channel 104 with the 6mm through diameter of the box body 10 are paired to form a two-time flow channel section abrupt change structure, so as to form a 40KPa local flow resistance, and the flow resistance of the simulated liquid passing device is regulated to 80KPa.
The fluid connectors 40 are disposed at the left and right side ends of the case 10, and are configured to be abutted with the fluid connectors of the rack, so as to realize the penetration of the fluid channels.
The main flow channel 104 of the box body 10 and one of the four control flow channels 204 of the lateral plug 20 and the flow resistance regulating valve 30 together form a complete fluid passage; the cooling liquid enters the device from the liquid inlet and flows out from the liquid outlet through the fluid passage.
The specific design steps of the flow resistance adjustable simulation fluid device are as follows:
step S1: determining the flow Q=0.6L/min of the analog liquid passing device, wherein the flow resistance adjusting range is 40 KPa-80 KPa, and the adjusting gear number N=4;
step S2: according to the requirement of the lower flow resistance limit rmin=40 KPa, determining the drift diameter d0=6mm of the main flow channel 104 of the box body 10 and the drift diameter d1=2mm of the flow channel 204 of the lateral plug 20 through numerical simulation;
step S3: according to the requirement of the flow resistance blocking number n=4, the 4 fluid channel specifications of the flow resistance regulating valve 30 are determined to be respectively matched with four flow resistances: 40KPa, 50KPa, 60KPa and 80KPa, and setting the working gear of the flow resistance regulating valve according to the required flow resistance value.
As described above, the present invention can be preferably implemented.
All of the features disclosed in all of the embodiments of this specification, or all of the steps in any method or process disclosed implicitly, except for the mutually exclusive features and/or steps, may be combined and/or expanded and substituted in any way.
The foregoing description of the preferred embodiment of the invention is not intended to limit the invention in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the invention.

Claims (6)

1. The flow resistance adjustable analog fluid passing device is characterized by comprising a box body (10), a flow resistance adjusting valve (30) arranged on the upper surface of the box body (10), a lateral plug (20) arranged on the side surface of the box body (10) and a fluid connector (40) connected with the lateral plug (20), wherein the flow resistance adjusting valve (30) can adjust the flow resistance of fluid passing through the interior of the box body (10);
the two side surfaces of the box body (10) are provided with a lateral plug mounting interface (101) and a fluid connector mounting interface (103), the upper surface of the box body (10) is provided with a flow resistance adjusting valve mounting interface (102), a first sealing ring (1021) is arranged in the flow resistance adjusting valve mounting interface (102), and a fluid main runner (104) is arranged in the box body (10);
a through-flow column (201) and a mounting flange (202) are arranged on the lateral plug (20), and a second sealing ring (203) is sleeved outside the through-flow column (201);
an auxiliary flow passage (204) is arranged in the through flow column (201);
the flow resistance regulating valve (30) is provided with four groups of control flow passages with different specifications, which are respectively marked as a first control flow passage (301), a second control flow passage (302), a third control flow passage (303) and a fourth control flow passage (304), and each group of control flow passages is controlled by one flow resistance regulating gear.
2. A flow resistance adjustable analog fluid communication device according to claim 1, characterized in that the first control channel (301) and the third control channel (303) are both straight-through cylindrical in shape.
3. A flow resistance adjustable analog fluid communication device according to claim 2, characterized in that the second control channel (302) has a sudden change of the path.
4. A flow resistance adjustable analog fluid communication device according to claim 3, characterized in that the fourth control channel (304) has a sudden change of the path.
5. The flow resistance adjustable analog fluid passing device according to claim 4, wherein the lower flow resistance limits of the first control flow passage (301), the second control flow passage (302), the third control flow passage (303) and the fourth control flow passage (304) are respectively 40KPa, 50KPa, 60KPa and 80KPa.
6. A flow resistance adjustable analog fluid communication device according to any of claims 1 to 5, wherein the main flow channel (104) has a 6mm diameter and the auxiliary flow channel (204) has a 2mm diameter.
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