CN217276795U

CN217276795U - Temperature field, speed field and solid field coupling experimental system

Info

Publication number: CN217276795U
Application number: CN202220975945.5U
Authority: CN
Inventors: 王泽栋; 阳倦成; 张年梅; 吕泽; 倪明玖
Original assignee: Xian Jiaotong University; University of Chinese Academy of Sciences
Current assignee: Xian Jiaotong University; University of Chinese Academy of Sciences
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-08-23
Anticipated expiration: 2032-04-26

Abstract

The utility model provides an experimental system of temperature field, speed field, solid field coupling for solve among the prior art "heat-flow-solid" strong coupling problem in temperature field, speed field, the solid field, include: transparent experiment section, heat transfer system and water pump, transparent experiment section heat transfer system with the water pump passes through pipe connection and forms circulation system, transparent experiment section includes transparent fluid chamber, heating system and vortex subassembly, transparent fluid intracavity portion is used for supplying the fluid circulation, heating system is used for rightly fluid in the transparent fluid intracavity heats, the vortex subassembly includes rigidity piece and flexible piece, the flexible piece is connected on the rigidity piece, the vortex subassembly is used for the reinforcing the heat convection current of transparent fluid chamber realizes the reinforcing heat transfer, heat transfer system is used for rightly the liquid of transparent fluid chamber carries out the heat transfer cooling.

Description

Temperature field, speed field and solid field coupling experimental system

Technical Field

The utility model relates to a solid coupling field of heat-flow especially relates to an experimental system of temperature field, speed field, solid field coupling.

Background

At present, no coupling system capable of simultaneously measuring a temperature field, a velocity field and a solid field exists, and particularly a 'heat-flow-solid' strong coupling system for the temperature field, the velocity field and the solid field exists. The prior art and the existing defects of the measurement of the 'hot-flow-solid' strong coupling system are as follows: a particle Image Processing (PIV) technology can only obtain a velocity vector diagram of a flow field but cannot identify deformation of a flexible body in real time to obtain a solid field, contact measurement in temperature field measurement can change the flow field to cause change of the temperature field, and most of traditional non-contact temperature measurement is surface temperature, so that real-time cross-sectional temperature distribution of flow cannot be obtained, and simultaneous obtaining of temperature and velocity fields under non-contact measurement is difficult to achieve.

Disclosure of Invention

In view of the above shortcomings in the prior art, an object of the present invention is to provide an experimental system for coupling a temperature field, a speed field and a solid field, which is used for solving the problem of coupling the solid field, the speed field and the temperature field in the prior art.

For realizing above-mentioned purpose and other relevant purposes, the utility model provides an experimental system of temperature field, velocity field, solid field coupling, including transparent experiment section, heat transfer system and water pump, transparent experiment section heat transfer system with the water pump passes through pipe connection and forms circulation system, transparent experiment section includes transparent fluid chamber, heating system and vortex subassembly, transparent fluid intracavity portion is used for supplying the fluid circulation, heating system is used for right fluid in the transparent fluid intracavity heats, the vortex subassembly includes rigidity and flexible piece, the flexible piece is connected on the rigidity, the vortex subassembly is used for the reinforcing the heat convection current of transparent fluid chamber realizes the reinforcing heat transfer, heat transfer system is used for right the liquid of transparent fluid chamber carries out the heat transfer cooling.

Optionally, the transparent fluid chamber is composed of an acrylic material or a transparent glass material.

Optionally, the heating system includes a heat conducting member, a heating member, and a dc regulated power supply, the heating member is electrically connected to the dc regulated power supply to form an electrical loop, and the heat conducting member is configured to transfer heat of the heating member to the fluid in the transparent fluid cavity.

Optionally, the heat conducting member is a copper plate engraved with a uniform groove, and the heat generating member is disposed in the copper plate groove.

Optionally, the fluid temperature measuring device further comprises a temperature measuring element for measuring the internal temperature of the fluid in the transparent fluid cavity and the temperature of the surface of the heat conducting member, which is in contact with the fluid.

Optionally, the spoiler assembly is replaceable within the transparent fluid chamber.

Optionally, the flexible member and the rigid member are removably connected.

Optionally, the heat exchange system includes a heat exchanger and a refrigeration device, and the heat exchanger is connected to the heat exchange plate through a conduit.

Optionally, the system further comprises a flow meter at the inlet of the transparent experimental section and a valve for controlling the flow in the transparent fluid cavity.

Optionally, the flow meter is a non-contact flow meter for measuring the flow rate in the transparent fluid chamber.

As above, the utility model discloses a realize experimental system of temperature field, speed field, solid field coupling has following beneficial effect at least:

1. the fluid in the transparent experimental section reaches a preset pressure through the water pump, the flow is measured through the flowmeter, the heat exchange system reaches a preset fluid temperature, the heating system absorbs heat, the fluid forms 'hot-fluid-solid' strong coupling in the transparent experimental cavity due to the convection enhancement effect of the turbulence system, and the heat is released in the heat exchange system to form a circulating system;

2. the transparent fluid cavity is made of acrylic or transparent glass materials, so that a temperature field, a velocity field and a solid field under the thermal-fluid-solid coupling action can be measured simultaneously;

3. the rigid part and the flexible part are detachably connected, and the device can be used for researching the influence of different shapes, materials and intervals on the thermo-fluid-solid coupling effect;

4. the flow meter controls the flow rate in the transparent fluid cavity, the valve controls the flow rate in the transparent fluid cavity, the direct-current stabilized voltage supply controls the temperature, the turbulence piece controls the solid field, and the coupling of the temperature field, the speed field and the solid field under the action of strong current is favorably researched.

Drawings

Fig. 1 shows a schematic structural diagram of an experimental system for realizing the coupling of a temperature field, a velocity field and a solid field according to the present invention.

Fig. 2 shows a schematic diagram of the structure of the transparent experimental section of the present invention.

Fig. 3 is a schematic view of a heating element according to the present invention.

Element number description: flowmeter 1, transparent experiment section 2, direct current constant voltage power supply 3, valve 4, water pump 5, heat exchanger 6, refrigerating plant 7, transparent fluid cavity 21, stationary flow chamber 22, portable apron 23, rigid part 24, flexible part 25, heat conduction piece 26, connecting hole 261, generate heat a 262.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope of the present invention without affecting the functions and the achievable purposes of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.

Referring to fig. 1 to 2, the present invention provides an experimental system for coupling a temperature field, a velocity field and a solid field, including a transparent experimental section 2, a water pump 5, a heat exchanger 6 and a refrigerating device 7, wherein the heat exchanger 6 and the refrigerating device 7 form a heat exchange system by pipe connection, the transparent experimental section 2, the water pump 5 and the heat exchange system form a water circulation system by pipe connection, the transparent experimental section 2 includes a transparent experimental cavity, a turbulent flow component and a heating system, the turbulent flow component is composed of a rigid piece 24 and a flexible piece 25, the flexible piece 25 is fixed on the rigid piece 24 for interfering the fluid in the transparent fluid cavity 21 to form fluid-solid coupling, and meanwhile, the fluid in the transparent experimental section 2 absorbs heat through the heating system, so that the fluid forms a temperature field, a velocity field and a solid field in the transparent fluid cavity 21, And coupling the solid field, and enabling the fluid to reach a heat exchange system through the action of the water pump, so that heat is released in the heat exchange system to form a heat circulation system.

In this embodiment, referring to fig. 2, the transparent fluid cavity 21 may be made of acrylic or transparent glass material, so that a temperature field, a velocity field, and a solid field of a thermo-hydrodynamic coupling can be measured simultaneously, the movable cover plate 23 may be selected on the top of the transparent fluid cavity 21, the heat conducting member 26 is disposed at the bottom of the transparent fluid cavity 21, the flow stabilizing cavity 22 is disposed at the front of the transparent fluid cavity 21, the turbulent flow component is disposed at the rear of the transparent fluid cavity 21, the heat conducting member 26 transfers heat of the heat generating member to the fluid, the fluid obtains a stable flow velocity through the flow stabilizing cavity 22 and then forms a stable "thermo-fluidic-hydrodynamic" coupling with the turbulent flow component, and the movable cover plate 23 facilitates detachment of the turbulent flow component.

In this embodiment, referring to fig. 3, the connection holes 261 are carved at the positions of the left side and the right side of the heat conducting member 26 at even intervals, and through the cooperation of the connection holes 261 and elements such as bolts and waterproof sealing rings, thereby fixing the heat conducting member 26 on the transparent fluid cavity 21, wherein the upper surface of the heat conducting member 26 is plated with an insulating layer, the insulating layer, which may be selected as an insulating tape, prevents the thermal conductor 26 from contacting the fluid in the transparent fluid chamber 21 and shorting out the heating system, the lower surface of the heat-conducting member 26 is engraved with a uniform groove, the heating member 262 is disposed in the uniform groove, the heating component 262 can be selected as a heating wire, the heating component 262 and the DC stabilized voltage power supply 3 are connected through a lead to form the heating system, the heat conductive member 26 serves to transfer heat of the heat generating member 262 to the fluid in the transparent fluid chamber 21.

In this embodiment, please refer to fig. 2, the rigid member 24 may be selected as a cylindrical or triangular-cylindrical rigid member, the flexible member 25 may be selected as an elongated flexible sheet, the rigid member 24 is detachably connected to the transparent fluid chamber 21, and the manner of implementing the detachable connection is not the focus of the present application, and the present application is only for example, the flexible member 24 may be detachably connected to the flexible member 25 in a clamping manner, and may be used for studying the influence of rigid flow disturbing members of different shapes and materials on the thermo-fluidic coupling effect, where the detachable connection may be implemented by a strap or a clamp, and the fluid forms a "thermo-fluidic-solid" strong coupling through the vibration flow bypassing effect of the rigid member 24 and the flexible member 25.

In this embodiment, referring to fig. 2, in order to further explore the convection effect of the fluid in the transparent fluid chamber 21 enhanced by the rigid members 24 and the flexible members 23, the rigid members with different sizes, shapes and distances from the surface of the heat conducting member 26 can be selected to be clamped with the transparent fluid chamber 21, and the flexible members with different sizes, shapes and material properties can be selected to be connected with the rigid members 24.

In this embodiment, referring to fig. 3, the heat conducting member 26 may be a copper plate with uniform thickness, and the copper plate enables the heat of the heating wire to be uniformly transferred to the fluid in the transparent fluid cavity 21.

In this embodiment, the dc regulated power supply 3 may be a programmable dc regulated power supply, and in order to stabilize the temperature of the fluid in the transparent fluid chamber within a certain range, a temperature measuring element may be selected to measure the temperature of the fluid in the transparent fluid chamber, and data is fed back to the programmable dc regulated power supply through a wire, so that the temperature of the fluid in the experimental chamber is stabilized within a certain range through a negative feedback effect.

In this embodiment, referring to fig. 1, the heat exchanger 6 and the refrigeration device 7 are connected through a pipeline to form a heat exchange system, the refrigeration device 7 can be selected according to actual requirements, details of how the refrigeration device 7 performs refrigeration are not repeated here in the prior art, and fluid absorbs heat through the heating system and then releases heat through the heat exchange system, and enters the circulation system again.

In this embodiment, referring to fig. 1, in order to control the flow rate of the fluid in the transparent experimental section 2, the flow meter 1 is disposed at the fluid inlet of the transparent experimental section 2, the flow meter 1 may be a non-contact flow meter, and the non-contact flow meter may be an ultrasonic flow meter, so that the flow data of the fluid to be tested is sensitive and accurate, and the flow in the transparent experimental section 2 is controlled by the valve 4 according to the measurement data of the flow meter 1.

To sum up, the utility model discloses pass through transparent experiment cavity, vortex subassembly and heating system's combination at the experiment section for the coupling of fluid formation temperature field, speed field, solid field in transparent experiment section has made things convenient for the simultaneous measurement to temperature field, speed field, solid field. When the influence of rigid pieces with different shapes or materials on the thermo-hydro-solid coupling effect needs to be analyzed, the turbulent flow assembly in the transparent experiment cavity can be replaced more conveniently. Meanwhile, the temperature of the heating copper plate is controlled by adjusting the power supply voltage, the flow in the transparent experiment cavity is measured and controlled by the flowmeter and the valve, and the coupling effect of a temperature field, a speed field and a solid field under strong current can be realized. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An experimental system for coupling a temperature field, a velocity field and a solid field is characterized by comprising: transparent experiment section, heat transfer system and water pump, transparent experiment section heat transfer system with the water pump passes through pipe connection and forms circulation system, transparent experiment section includes transparent fluid chamber, heating system and vortex subassembly, transparent fluid intracavity portion is used for supplying the fluid circulation, heating system is used for rightly fluid in the transparent fluid intracavity heats, the vortex subassembly includes rigidity piece and flexible piece, the flexible piece is connected on the rigidity piece, the vortex subassembly is used for the reinforcing the heat convection current of transparent fluid chamber realizes the reinforcing heat transfer, heat transfer system is used for rightly the liquid of transparent fluid chamber carries out the heat transfer.

2. The temperature field, velocity field, solid field coupled experimental system of claim 1, wherein: the transparent fluid cavity is made of an acrylic material or a transparent glass material.

3. The temperature field, velocity field, solid field coupled experimental system of claim 1, wherein: the heating system comprises a heat conducting piece, a heating piece and a direct current stabilized voltage power supply, the heating piece is electrically connected with the direct current stabilized voltage power supply to form an electrifying loop, and the heat conducting piece is used for transferring the heat of the heating piece to the fluid in the transparent fluid cavity.

4. The temperature field, velocity field, solid field coupled experimental system of claim 3, wherein: the heat conducting part is a copper plate carved with uniform grooves, and the heating part is arranged in the copper plate grooves.

5. The temperature field, velocity field, solid field coupled experimental system of claim 3, wherein: the temperature measuring element is used for measuring the internal temperature of the fluid in the transparent fluid cavity and the temperature of the contact surface of the heat conducting piece and the fluid.

6. The temperature field, velocity field, solid field coupled experimental system of claim 1, wherein: the spoiler assembly is replaceable within the transparent fluid chamber.

7. The temperature field, velocity field, solid field coupled experimental system of any one of claims 1-5, wherein: the rigid member and the flexible member are detachably connected.

8. The temperature field, velocity field, solid field coupled experimental system of claim 1, wherein: the heat exchange system comprises a heat exchanger and a refrigerating device, and the heat exchanger is connected with the heat exchange plate through a guide pipe.

9. The temperature field, velocity field, solid field coupled experimental system of claim 1, wherein: the transparent experimental section comprises a transparent fluid cavity, a transparent experimental section inlet and a valve, wherein the transparent fluid cavity is used for accommodating the transparent fluid, and the transparent experimental section inlet is used for accommodating the transparent fluid.

10. The temperature field, velocity field, solid field coupled experimental system of claim 9, wherein: the flowmeter is a non-contact flowmeter which is used for measuring the flow in the transparent fluid cavity.