阅读说明：本技术 液冷回路中测量液体温度的方法 (Method for measuring liquid temperature in liquid cooling loop ) 是由 季懿栋 赵晶南 陈雪锋 项品义 于 2021-08-26 设计创作，主要内容包括：本实施例提供一种液冷回路中测量液体温度的方法,在液冷回路的待测管路中接入三通管件,通过所述三通管件异于连接所述待测管路的接口将热电偶的导线引入所述待测管路,实现冷回路中液体温度的测量,提高了液冷回路中液体温度测量的可操作性,降低测试成本,且液体读取温度精度高。(The embodiment provides a method for measuring liquid temperature in a liquid cooling loop, wherein a three-way pipe is connected to a pipeline to be measured of the liquid cooling loop, and a lead of a thermocouple is introduced into the pipeline to be measured through a port of the three-way pipe, which is different from a port connected with the pipeline to be measured, so that the measurement of the liquid temperature in the liquid cooling loop is realized, the operability of the measurement of the liquid temperature in the liquid cooling loop is improved, the test cost is reduced, and the precision of the liquid reading temperature is high.)

1. A method of measuring a temperature of a liquid in a liquid cooling circuit, comprising:

disconnecting the pipeline to be measured at the temperature measuring position;

connecting the disconnected pipeline to be tested through two connectors of the three-way pipe fitting; and the number of the first and second groups,

and introducing a lead of the thermocouple into the pipeline to be tested through the three-way pipe which is different from the interface connected with the pipeline to be tested.

2. The method of claim 1, wherein the tee is a tee having a transverse connection and a vertical connection.

3. The method of claim 2, wherein the tee material comprises polypropylene or polyethylene.

4. The method of claim 3, wherein a lateral port of the tee is connected to the pipe to be measured, and the lateral port has a helical protrusion.

5. The method of claim 4, wherein the diameter of the lateral port is smaller than the diameter of the pipe to be measured.

6. The method of claim 5, wherein the vertical port of the tee is inserted into the lead of the thermocouple and filled with liquid glue to prevent liquid leakage.

7. The method of claim 5, wherein the joint between the transverse port and the pipe to be measured is wrapped with a sealing tape.

8. The method of claim 2, wherein the tee is made of a material selected from the group consisting of cast iron, stainless steel, alloy steel, malleable cast iron, and carbon steel.

9. The method of claim 8, wherein the lateral port of the tee has internal threads and is threadably connected to an externally threaded barb head module, which is connected to the pipe to be measured through the barb head module.

10. The method of claim 9, wherein a first rubber ring is disposed between the lateral port and the barb head module to provide an end seal.

11. The method of claim 8, wherein the vertical port of the tee has internal threads and is threadably connected to an externally threaded self-sealing nipple.

12. The method of claim 11, wherein a second rubber ring is provided in the center of the self-sealing head, and wherein the second rubber ring seals the wires of the thermocouple by tightening the self-sealing head.

Technical Field

The invention relates to the field of hard disk testing devices, in particular to a method for measuring liquid temperature in a liquid cooling loop.

Background

With the increasing demand for efficient heat dissipation technology in the industry, liquid cooling technology gradually becomes one of the mainstream heat dissipation means due to its high degree of greenness and low PUE value (energy consumption ratio), wherein the fluid temperature is one of the important indexes for evaluating the liquid cooling performance, and requires precise measurement. However, accurate measurement of fluid temperature in a laboratory or test phase often requires tight seals, precise instruments, and customized piping, greatly increasing the development cycle and development cost. The following problems generally exist in the conventional liquid cooling loop for measuring the temperature of the fluid:

(1) the heat conductivity coefficient of the pipeline used in the common liquid cooling loop is low, the surface is uneven, and the real liquid temperature cannot be obtained by directly measuring the surface temperature of the pipeline;

(2) the liquid expansion type thermodetector is shock-resistant, low in price and generally directly used for reading. If the traditional glass thermometers are placed in the pipeline, the temperature reading is difficult, and the pipeline with originally excellent flexibility cannot be bent due to the placement of the thermometers and has the risk of breakage;

(3) the shooting temperature of the non-contact thermal imager is easily influenced by the radiance of the surface of the pipeline, and the equipment cost is high;

(4) the temperature of fluid in the measuring tube is measured on each section according to the acoustic characteristics of the fluid by adopting an ultrasonic phase shift technology, but the ultrasonic phase shift technology is limited by a measuring device and is not easy to actually operate;

(5) the existing bimetallic thermometer in the market takes a hot bimetallic strip which is spirally wound around a city thread as a temperature sensing device and is arranged in a protective sleeve, but the minimum size of the bimetallic thermometer is larger than that of a liquid cooling pipeline, and the bimetallic thermometer is of a rigid structure and cannot be well sealed.

In view of the above-mentioned drawbacks, it is actually necessary to design a method for measuring the temperature of a liquid in a liquid cooling circuit.

Disclosure of Invention

The invention aims to provide a method for measuring liquid temperature in a liquid cooling loop, which improves the operability of liquid temperature measurement, reduces the measurement cost and improves the temperature measurement precision.

To achieve the above object, the present invention provides a method for measuring liquid temperature in a liquid cooling circuit, comprising:

disconnecting the pipeline to be measured at the temperature measuring position;

connecting the disconnected pipeline to be tested through two connectors of the three-way pipe fitting; and the number of the first and second groups,

and introducing a lead of the thermocouple into the pipeline to be tested through the three-way pipe which is different from the interface connected with the pipeline to be tested.

Optionally, the tee pipe fitting is a T-shaped tee pipe and comprises a transverse connector and a vertical connector.

Optionally, the material of the tee comprises polypropylene (PP) or Polyethylene (PE).

Optionally, a transverse connector of the three-way pipe fitting is connected with the pipeline to be tested, and the transverse connector is provided with a spiral protrusion.

Optionally, the aperture of the transverse interface is smaller than the aperture of the pipeline to be measured.

Optionally, a vertical interface of the three-way pipe fitting is introduced into a lead of the thermocouple, and liquid glue is filled in the vertical interface to prevent liquid leakage.

Optionally, the joint of the transverse connector and the pipeline to be tested is wrapped by a sealing adhesive tape.

Optionally, the material of the tee comprises cast iron, stainless steel, alloy steel, malleable cast iron or carbon steel.

Optionally, the transverse interface of the tee pipe fitting is provided with an internal thread, is spirally connected with the barb head module with an external thread, and is connected with the pipeline to be tested through the barb head module.

Optionally, a first rubber ring is further arranged between the transverse interface and the barb head module to realize end face sealing.

Optionally, the vertical interface of the tee pipe fitting is provided with internal threads and is in threaded connection with a self-sealing plug with external threads.

Optionally, a second rubber ring is arranged in the center of the self-sealing head, and the second rubber ring seals the lead of the thermocouple by screwing the self-sealing head.

In summary, in the method for measuring the liquid temperature in the liquid cooling loop provided by this embodiment, the three-way pipe is connected to the to-be-measured pipeline of the liquid cooling loop, and the lead of the thermocouple is introduced into the to-be-measured pipeline through the interface different from the interface connected to the to-be-measured pipeline through the three-way pipe, so as to measure the liquid temperature in the liquid cooling loop, improve the operability of measuring the liquid temperature in the liquid cooling loop, reduce the test cost, and achieve high accuracy of reading the temperature of the liquid.

Drawings

Fig. 1 is a flowchart of a method for measuring a liquid temperature in a liquid cooling loop according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a tee fitting provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a three-way pipe fitting connected to a pipeline to be measured to measure a liquid temperature according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a tee fitting provided in accordance with another embodiment of the present invention;

FIGS. 5A and 5B are schematic structural views of a self-sealing head according to another embodiment of the present invention;

FIG. 6 is a schematic view of a barb head module according to another embodiment of the invention;

fig. 7 is a schematic structural diagram of a three-way pipe fitting connected to a pipe to be measured to measure a liquid temperature according to another embodiment of the present invention.

Wherein the reference numerals are:

100. 200-tee pipe fitting; 101. 201-horizontal interface; 102. 202-interface; 103-a helical protrusion; 110. 210-a pipeline to be tested; 120. 220-lead of thermocouple; 130-sealing tape; 140-liquid glue; 230-a first rubber ring; 300-sealing the head; 301-a removable nut; 302-a retaining nut; 303-spring plate; 304-a second rubber ring; 400-a barb head module; 401-bolt; 402-plug.

Detailed Description

The method for measuring the temperature of the liquid in the liquid cooling circuit according to the present invention will be described in further detail with reference to the accompanying drawings and specific examples. The advantages and features of the present invention will become more apparent from the following description and drawings, it being understood, however, that the concepts of the present invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. The drawings are in simplified form and are not to scale, but are provided for convenience and clarity in describing embodiments of the invention.

The terms "first," "second," and the like in the description are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in other sequences than described or illustrated herein. Similarly, if the method described herein comprises a series of steps, the order in which these steps are presented herein is not necessarily the only order in which these steps may be performed, and some of the described steps may be omitted and/or some other steps not described herein may be added to the method. Although elements in one drawing may be readily identified as such in other drawings, the present disclosure does not identify each element as being identical to each other in every drawing for clarity of description.

Example one

Fig. 1 is a flowchart of a method for measuring a liquid temperature in a liquid cooling circuit according to this embodiment. As shown in fig. 1, the method for measuring a liquid temperature in a liquid cooling loop provided in this embodiment includes:

s01: disconnecting the pipeline to be measured at the temperature measuring position;

s02: connecting the disconnected pipeline to be tested through two connectors of the three-way pipe fitting; and the number of the first and second groups,

s03: and introducing a lead of the thermocouple into the pipeline to be tested through the three-way pipe which is different from the interface connected with the pipeline to be tested.

Fig. 2 is a schematic structural diagram of the three-way pipe provided in this embodiment, and fig. 3 is a schematic structural diagram of the three-way pipe provided in this embodiment, which is connected to a pipeline to be measured to measure a liquid temperature. The method for measuring the temperature of the liquid in the liquid cooling circuit according to the present embodiment is described in detail below with reference to fig. 1 to 3.

Specifically, first, the pipeline 110 to be tested is disconnected at the temperature measuring position of the liquid cooling loop. The pipeline 110 to be measured in the liquid cooling loop is generally a plastic pipeline, and can be cut at a position where temperature measurement is needed, and then the tee pipe 100 is inserted into the cut pipeline 110 to be measured, and the pipeline 110 to be measured is connected through the tee pipe 100.

In this embodiment, the tee pipe 100 is a T-shaped tee pipe, and includes a transverse connector 101 and a vertical connector 102, where the transverse connector 101 of the tee pipe 100 is connected to the pipe 110 to be tested, and the vertical connector 102 of the tee pipe 100 is used to introduce a wire 120 of a thermocouple. The caliber of the transverse connector 101 is smaller than that of the pipeline 110 to be tested, spiral protrusions 103 are arranged on the transverse connector 101 and the vertical connector 102, and when the transverse connector 101 is connected with the pipeline 110 to be tested, the three-way pipe fitting 100 and the pipeline 110 to be tested are fixed through the spiral protrusions 103.

After the three-way pipe fitting 100 can be connected to the pipeline 110 to be tested, a joint of the transverse connector 101 and the pipeline 110 to be tested is wrapped by a sealing adhesive tape 130 to ensure a sealing effect.

In this embodiment, the tee 100 and the pipe 110 to be tested are both made of plastic, for example, the material of the tee 100 includes polypropylene (PP) or Polyethylene (PE). In other embodiments of the present invention, other types of tee pipe fittings, such as a "Y" tee pipe fitting, may be used according to the specificity of the location of the pipeline to be measured.

The lead wire 140 of the thermocouple is then introduced into the pipe under test 110 through the vertical interface 102 of the tee 100. The vertical interface 102 is filled with liquid glue 140 to prevent liquid from leaking through the vertical interface 102 when liquid temperature is measured.

Then, inserting the data acquisition module into Agilent, inserting the male head end of the thermocouple into the female head end of the tail end of the data acquisition module, starting a power supply of Agilent equipment, connecting the Agilent to a computer through a USB serial port, opening Agilent software, selecting a configuration instrument, checking the name of a port in which the thermocouple is inserted, and setting the type of acquired data as "TEMPERATURE" with the unit of TEMPERATURE. And setting the thermocouple name in the configuration channel according to the selected channel, then clicking a start button, starting temperature acquisition, testing the liquid temperature of the liquid cooling loop, and smoothly reading the liquid temperature of an interface at the temperature measurement temperature.

The method is adopted to test the liquid cooling condition of a 2p (two processor processors, 2p for short) system in a certain type of machine, and a thermocouple is introduced between the pipelines of the two CPUs in a fixed mode of the thermocouple to read the outlet liquid temperature of the first CPU, namely the inlet temperature of the second CPU. Two intel purley platform 205W CPUs were used, the CPUs were loaded 205W full, and data was collected according to the method mentioned above. The obtained data are shown in the following table 1, wherein the temperature at the outlet of the CPU0 is the temperature obtained by the thermocouple of the method, and the data precision is high.

TABLE 1

According to the energy transfer formula Δ T ═ P × 0.86/G (where Δ T is the fluid temperature difference, P is the heat, and G is the fluid volume passing through the cross section in a unit hour), the heat quantity taken away by the liquid cooling in the liquid cooling loop can be calculated under the condition that the flow rate and the temperature difference are known, so that about 160W of heat quantity taken away by the liquid cooling in 5 sets of test data is calculated, and the remaining about 20% of heat quantity is taken away by the fan with the duty ratio (fan duty ratio) of 30%.

The method for measuring the liquid temperature in the liquid cooling loop is simple in use principle, low in cost, free of blockage of liquid cooling equipment, free of influence on fluid flow, accurate in temperature data reading, capable of being widely applied to daily tests and wide in application prospect.

For example, the method for measuring the liquid temperature in the liquid cooling loop provided by the embodiment can be operated at a bent pipeline position, has good flexibility, and is not influenced by the modeling of the pipe body loop; because a professional temperature reading instrument and software are used, the reading accuracy is very high; the method can be operated on any section needing to be measured, and has no limitation; furthermore, the liquid temperature is measured only by connecting a three-way pipe fitting and a thermocouple wire into the original liquid cooling pipeline, so that the liquid temperature measuring device is easy to seal and has no liquid leakage risk; in the liquid temperature measuring process, the pipeline to be measured basically has no resistance, does not influence the liquid flow in the pipeline, and has no influence on heat dissipation; in addition, the cost of the measurement is very low, since only tee material and sealing material need to be additionally used.

Example two

The embodiment provides a method for measuring liquid temperature in a liquid cooling loop, and the difference from the first embodiment is that the three-way pipe connected to a pipeline to be measured of the liquid cooling loop in the embodiment is different, and the method for connecting the three-way pipe to the pipeline to be measured is also different.

Fig. 4 is a schematic structural diagram of the three-way pipe provided in this embodiment, fig. 5A and 5B are schematic structural diagrams of the self-sealing head provided in this embodiment, fig. 6 is a schematic structural diagram of the barbed head module provided in this embodiment, and fig. 7 is a schematic structural diagram of the three-way pipe provided in this embodiment, which is connected to a pipeline to be measured to measure a liquid temperature. The method for measuring the temperature of the liquid in the liquid cooling circuit according to the present embodiment is described in detail below with reference to fig. 1 and fig. 4 to 7.

As shown in fig. 7, the method for measuring the temperature of the liquid in the liquid cooling loop provided by this embodiment includes: the transverse interface 201 of the three-way pipe fitting 200 is connected into the pipeline 210 to be tested through the barb head module 400, and the vertical interface 202 of the three-way pipe fitting 200 realizes the introduction and sealing of the thermocouple lead wire 220 through the self-sealing head 300.

Specifically, in this embodiment, the tee fitting 200 is made of a metal material, and the material of the tee fitting 200 includes, for example, cast iron, stainless steel, alloy steel, malleable cast iron, or carbon steel. As shown in fig. 4, the lateral port 201 of the tee pipe 200 has an internal thread and is screwed with the barbed head module 200 having an external thread, and is connected with the pipe 210 to be tested through the barbed head module 400. Optionally, a first rubber ring 230 is further disposed between the transverse interface 201 and the barb head module 400 to realize end face sealing. Illustratively, as shown in fig. 6, the barbed head module 400 comprises a bolt 401 with external threads and a plug 402 with a barb, wherein the bolt 401 is matched with the internal threads of the transverse connector 201 of the tee pipe fitting 200, and the connection between the tee pipe fitting 200 and the pipeline 210 to be tested is realized through the screw connection between the bolt 401 and the transverse connector 201. And because the tee pipe fitting 200 with barb module 400 is the metal material, the spiral connection sealing performance is better, need not to use the sealed sticky tape to assist the sealed of both.

Illustratively, the vertical port 202 of the tee 200 is internally threaded and threadably engages an externally threaded self-sealing nipple 300. As shown in fig. 5A and 5B, the self-sealing head 300 includes a movable nut 301 and a fixed nut 302 connected thereto, and a through hole (not shown) connected to the fixed nut 302 has an external thread, and is matched with an internal thread of the vertical interface 202 of the tee 200 to realize the connection of the tee 200 and the self-sealing head 300. In a similar way, the tee pipe fitting 200 and the self-sealing head 300 are both made of metal materials, so that the spiral connection sealing performance is better, and an adhesive tape is not needed to assist the sealing of the tee pipe fitting and the self-sealing head.

A plurality of telescopic elastic pieces 303 are circumferentially arranged inside the movable nut 301, and a second rubber ring 304 is arranged in the center of the movable nut 301, as shown in fig. 5A. When the movable nut 301 is rotated, the elastic sheet 303 extends toward the center of the movable nut 301, and presses the second rubber ring 304, so that the second rubber ring 304 seals the lead 220 of the thermocouple, as shown in fig. 5B and 7.

Compared with the first embodiment, in the liquid temperature measuring process of the first embodiment, an adhesive tape does not need to be wrapped at the joint of the transverse connector 201 of the three-way pipe fitting 200 and the pipeline 210 to be measured, and liquid adhesive does not need to be filled at the vertical connector 202 of the three-way pipe fitting 200, that is, the liquid temperature can be measured and obtained while the sealing of the liquid cooling loop can be realized without the liquid adhesive and the sealing adhesive tape.

In summary, the present embodiment provides a method for measuring a liquid temperature in a liquid cooling loop, in which a three-way pipe is connected to a to-be-measured pipeline of the liquid cooling loop, and a lead of a thermocouple is introduced into the to-be-measured pipeline through a port of the three-way pipe, which is different from the port connected to the to-be-measured pipeline, so as to measure the liquid temperature in the liquid cooling loop, improve operability of liquid temperature measurement in the liquid cooling loop, reduce a test cost, and achieve high accuracy of liquid reading temperature.

It should be noted that the method and structure in this embodiment are described in a progressive manner, and the description of the method and structure in the following is mainly different from the previous method and structure, and for the structure disclosed in this embodiment, since the method corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the relevant points, the description may be referred to the method part.

The above description is only for the purpose of describing the preferred embodiments of the present invention and is not intended to limit the scope of the claims of the present invention, and any person skilled in the art can make possible the variations and modifications of the technical solutions of the present invention using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention, and therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention belong to the protection scope of the technical solutions of the present invention.