CN207123505U - The compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) - Google Patents
The compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) Download PDFInfo
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- CN207123505U CN207123505U CN201721196186.8U CN201721196186U CN207123505U CN 207123505 U CN207123505 U CN 207123505U CN 201721196186 U CN201721196186 U CN 201721196186U CN 207123505 U CN207123505 U CN 207123505U
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Abstract
The utility model discloses a kind of compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW), at least six pieces of plates are fixed successively from top to bottom, plate is provided with runner and forms carbon dioxide runner and cooling water flow conduits, thermometer hole is provided with plate, plate side wall is provided with pressure tap, insulated tank and cooling water outlet and inlet are provided with plate, insulated tank connects with being provided with the plate of cooling water flow conduits, and cooling water outlet and inlet connects with close cooling water flow conduits.The utility model can realize DCPHE heat exchange surface local flow heat-transfer character parameter measurements, and its processing technology is simple, structure type is flexible, and temperature, pressure measurement is reliable；Insulated tank is provided with both ends, effectively to reduce heat transfer between the cold fluid and hot fluid of porch, improves measurement validity；Thermometric groove is provided with, contributes to local flow to mix, improves temperature measurement accuracy, while facilitate temperature measuring equipment to arrange；By opening small pressure tap, it is good can be measured with direct measurement local flow characteristic for stability.
Description
Technical field
It the utility model is related to a kind of diffusion welding (DW) compact plate-fin heat exchanger heat exchange surface local flow heat-transfer character measurement
A kind of technology, and in particular to compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW).
Background technology
Diffusion welding (DW) compact plate-fin heat exchanger (English name is abbreviated as DCPHE), have compactness height, small volume, structure strong
Degree is high, heat exchanger effectiveness is high, holds the features such as warm bearing capacity is high.DCPHE fabricate process as shown in figure 1, (1) microchannel into
Shape, (2) cold-hot flow passage arrangement, (3) diffusion welding (DW) or soldering form heat exchanger core body, and (4) annex assembles to form DCPHE.DCPHE is held
Pressure energy power is up to 50MPa, and temperature in use is up to 1000 DEG C, and heat exchanger effectiveness is up to 97%.Processing DCPHE can be used, and (diffusion welding (DW) is welded
Connect) material it is extensive, including the technologic material such as stainless steel, copper, titanium alloy and part ceramics, the nonmetallic materials such as glass.Mesh
Before, the typical flow channel structure that is formed by advanced fluid channel forming technique as shown in Fig. 2 flow channel cross-section is usually semicircle,
Flow diameter is between 0.5~2mm.The structure significantly increases the heat transfer area of heat exchanger unit volume, adds heat exchanger
Volumetric power density.
DCPHE is initially applied to low temperature, refrigerating field, recently with energy-saving and emission-reduction requirement, many energy-saving and emission-reduction new technologies
New ideas propose, such as the energy of the solar energy with reference to supercritical carbon dioxide Brayton cycle, nuclear energy and traditional fossil energy
New paragon is developed in source, and modular small reactor, advanced IV are for technological concepts such as reactors.These new technology new ideas are compeled
It is essential and wants a kind of volume compact, heat exchanger efficiency height, holds the high heat exchanger of warm bearing capacity.Therefore DCPHE is increasingly by the energy
The attention of power industry.
With the expansion of DCPHE application fields, DCPHE thermal-design means need upgrading badly.The especially senior staff officer such as HTHP
Working medium physical property spatial variations are obvious under number even supercritical thermodynamic system, and the change of convection transfer rate streamwise, tradition is often
Physical property and normal convection transfer rate are assumed no longer to meet industrial design demand, it is necessary to measure acquisition varied property, become heat convection
Diffusion welding (DW) compact plate-fin heat exchanger heat exchange surface local flow resistance coefficient and convection transfer rate under coefficient, and at present not
There is the device measured to above-mentioned coefficient.
Utility model content
Technical problem to be solved in the utility model is prior art not to diffusion welding (DW) compact plate-fin heat exchanger
The device that heat exchange surface local flow resistance coefficient and convection transfer rate measure, its object is to provide a kind of diffusion welding (DW)
Compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus, the measurement apparatus can realize that DCPHE local flows hinder
Force coefficient and convection transfer rate measurement, input duct surface flow heat transfer characteristic parameter is designed for DCPHE.
The utility model is achieved through the following technical solutions：
The compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW), including at least six pieces of plates,
The plate is fixed successively from top to bottom, and the plate top surface positioned at middle part is provided with runner and forms carbon dioxide runner and cooling
Water flow passage, and the plate for being provided with carbon dioxide runner is arranged between the plate for being provided with cooling water flow conduits, positioned at both ends
Several thermometer holes are provided with plate, the cooling water flow conduits connection that thermometer hole is adjacent to respectively, are provided with carbon dioxide
The plate side wall of runner is provided with pressure tap, and pressure tap connects with carbon dioxide runner, on the plate at both ends simultaneously
Insulated tank and cooling water outlet and inlet are provided with, insulated tank connects through the plate with being provided with the plate of cooling water flow conduits, cooling
Water entrance connects through the plate with close cooling water flow conduits.Because DCPHE channel sizes are small, operating pressure is higher
(about 1~30MPa), at present for heat exchanger flowing heat transfer feature measurement based on overall measurement heat exchanger flowing heat transfer characteristic,
Traditional measurement method can not preferably reflect varied property and become the influence of the heat exchanging device performances such as convection transfer rate.And this programme is set
The measurement apparatus of meter, for measuring diffusion welding (DW) compact plate-fin heat exchanger heat exchange surface coefficient of partial resistance and heat convection system
Number, basic input is provided for diffusion welding (DW) compact plate-fin heat exchanger fluid interchange design.The particular number of plate is according to actual need
Design is sought, but plate is at least six pieces, is welded and fixed successively from top to bottom, could realize the functional completeness of measurement apparatus.
Carbon dioxide runner is between cooling water flow conduits, when being passed through cold fluid in carbon dioxide runner, is passed through in cooling water flow conduits
Hot fluid, when being passed through hot fluid in carbon dioxide runner, cold fluid is passed through in cooling water flow conduits, heat transfer is realized, in order to runner
The pressure of middle carbon dioxide measures, and the plate side wall for being provided with carbon dioxide runner is provided with pressure tap, and pressure tap
Connected with carbon dioxide runner, in order to measure the temperature of cooling water in runner, devise thermometer hole, thermocouple is inserted by thermometer hole
Enter and contacted with cooling water, for the ease of the disengaging of cooling water, there is provided cooling water outlet and inlet, the insulated tank of setting be used for every
Exhausted thermal loss, by said structure, DCPHE local flows resistance coefficient and convection transfer rate measurement can be realized, is
DCPHE designs input duct surface flow heat transfer characteristic parameter.
Because runner is smaller in itself, while cooling water temperature has nuance in each bar runner, in order to which cooling water is mixed
And thermocouple is had to enough depth, is provided with plate on the plate of cooling water flow conduits and is provided with thermometric groove, thermometric groove
Connected with the cooling water flow conduits, and thermometric groove connects with close thermometer hole respectively, while the groove width scope of thermometric groove is designed as 2
~3mm, cooling water can either so be mixed, and there are enough spaces to accommodate thermocouple so that the temperature measured is more
Add accurate.
In order to prevent thermal loss, the insulated tank and cooling water outlet and inlet quantity in plate on the plate at both ends are equal
For two, and two cooling water outlet and inlets are arranged between two insulated tanks, and insulated tank is separately positioned on close to along two
At the plate both ends in carbonoxide runner direction, the groove width of insulated tank is preferably designed as 0.5~1.5mm, can so realize by
Environment completely cuts off, and reduces the influence of outer bound pair temperature change, cooling water flow conduits are between two insulated tanks.
The axis direction of thermometer hole and pressure tap along carbon dioxide runner is uniformly arranged, adjacent thermometer hole in thermometer hole
Spacing, the spacing of adjacent pressure tap is 50~150mm in pressure tap, the aperture of pressure tap is 0.5~1mm, by this
Structure design can obtain more accurate measurement data, and the thickness of plate is designed as into 2~4mm, can either ensure to measure
The structural stability of device, also runner is caused there are enough depth of placement.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model can realize DCPHE heat exchange surface local flow heat-transfer character parameter measurements, the letter of its processing technology
List, structure type are flexible, and temperature, pressure measurement is reliable；
2nd, the utility model both ends are provided with insulated tank, effectively to reduce heat transfer between the cold fluid and hot fluid of porch, improve and survey
Measure validity；
3rd, the utility model is provided with thermometric groove, contributes to local flow to mix, and improves temperature measurement accuracy, while convenient survey
Warm device arrangement；
4th, the utility model is provided with small pressure tap, it is good can to measure stability with direct measurement local flow characteristic.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is that DCPHE fabricates process schematic；
Fig. 2 is DCPHE typical flow channel structural representations；
Fig. 3 is elevational schematic of the present utility model；
Fig. 4 is cross-sectional schematic diagram of the present utility model.
Mark and corresponding parts title in accompanying drawing：
1- thermometer holes, 2- thermometric grooves, 3- cooling water flow conduits, 4- cooling water outlet and inlets, 5- insulated tanks, 6- carbon dioxide streams
Road, 7- plates one, 8- plates two, 9- plates three, 10- plates four, 11- plates five, 12- plates six, 13- pressure taps.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1：
As shown in Figure 3, Figure 4, the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW), including
Six pieces of plates, it is named as plate 1, plate 28, plate 39, plate 4 10, plate 5 11 and plate six successively from top to bottom
12, six pieces of plates are welded and fixed successively from top to bottom, plate 1 and plate 6 12 are thermometric orifice plate, and plate 28 is surveyed for auxiliary
Warm orifice plate, plate 39 and plate 5 11 are cold heat fluid stream guidance tape, and plate 4 10 is hot/cold fluid runner plate.Wherein plate
One 7, plate 28 and the surface of plate 6 12 are slab construction, are all provided with the top surface of plate 39, plate 4 10 and plate 5 11
It is equipped with runner, the wherein runner on plate 39 and plate 5 11 is cooling water flow conduits 3, and the runner on plate 4 10 is titanium dioxide
Several thermometer holes 1 are provided with carbon flow road 6, plate 1 and plate 6 12, thermometer hole 1 is led to as what thermocouple was put into
Road, thermometric groove 2 is provided with plate 28 and plate 5 11, thermometric groove 2 connects with corresponding cooling water flow conduits 3, and thermometric groove
2 connect with close thermometer hole 1 respectively；The groove width of thermometric groove 2 is 2~3mm, and thermometric groove 2 can aid in local flow mixing,
Temperature measurement accuracy is improved, while facilitates temperature measuring equipment to arrange.At least one side wall of plate 4 10 is provided with pressure tap 13, and
Pressure tap 13 is connected with carbon dioxide runner 6, and specific Betti number is set according to actual conditions, and pressure tap 3 can be with direct measurement office
Portion's flow behavior, measurement stability are good.Insulated tank 5 above is located at plate three in bottom surface after plate 1 and plate 28
In 9, bottom surface is located in plate 5 11 after underlying insulated tank 5 runs through plate 6 12, and insulated tank 5 can effectively reduce entrance
Heat transfer between place's cold fluid and hot fluid, improves measurement validity, and cooling water outlet and inlet 4 above runs through plate 1 and plate
Connected after 28 with the cooling water flow conduits 3 in plate 39, underlying cooling water outlet and inlet 4 is through plate 6 12 and plate five
Cooling water flow conduits 3 in 11 connect.Stream on plate 39, plate 4 10 and plate 5 11 is etched by chemical etching process
Road and pressure tap 13, thermometric groove 2 and insulated tank 5 are etched by chemical etching process, thermometer hole is obtained by machining
1, six blocks of plates are welded together successively finally by diffusion welding (DW), this measurement apparatus is formed, realizes microchannel, high parameter flows down
The local flow heat-transfer character parameter measurement of road surface, it can be designed for DCPHE and solid water passage surface data supporting is provided.It can be achieved
DCPHE heat exchange surface local flow heat-transfer character parameter measurements, its processing technology is simple, structure type is flexible, and temperature, pressure is surveyed
Amount is reliable.
Embodiment 2：
As shown in Figure 3, Figure 4, on the basis of embodiment 1, insulated tank 5 and cooling in plate on the plate at both ends
The quantity of water entrance 4 is two, and two cooling water outlet and inlets 4 are arranged between two insulated tanks 5, and insulated tank 5 is divided
It is not positioned close to along at the plate both ends in the direction of carbon dioxide runner 6；Thermometer hole 1 and pressure tap 13 are along carbon dioxide stream
The axis direction in road 6 is uniformly arranged, and when actually measuring, by the spacing of adjacent thermometer hole 1, pressure tap 13 in thermometer hole 1
The spacing of adjacent pressure tap 13 is both designed as 50mm, and the groove width of insulated tank 5 is designed as 0.5mm, and the aperture design of pressure tap 13 is
0.5mm, the thickness of plate are designed as 2mm, and this structure design can realize the compactedness of structure, while are easy in measurement
Obtain accurate measured value.
Embodiment 3：
As shown in Figure 3, Figure 4, the present embodiment is substantially the same manner as Example 2, and difference is, will when actually measuring
The spacing of adjacent pressure tap 13 is both designed as 150mm, insulated tank 5 in the spacing of adjacent thermometer hole 1, pressure tap 13 in thermometer hole 1
Groove width be designed as 1.5mm, the aperture design of pressure tap 13 is 1mm, and the thickness of plate is designed as 4mm, this structure design, energy
The compactedness of structure is enough realized, while is easy to obtain accurate measured value in measurement.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (9)
1. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW), it is characterised in that including at least
Six pieces of plates, the plate are fixed successively from top to bottom, and the plate top surface positioned at middle part is provided with runner and forms carbon dioxide
Runner (6) and cooling water flow conduits (3), and the plate for being provided with carbon dioxide runner (6) is arranged on and is provided with cooling water flow conduits (3)
Plate between, several thermometer holes (1) are provided with the plate at both ends, thermometer hole (1) is adjacent to cold respectively
But water flow passage (3) connects, and the plate side wall for being provided with carbon dioxide runner (6) is provided with pressure tap (13), and pressure tap (13)
Connected with carbon dioxide runner (6), insulated tank (5) and cooling water outlet and inlet (4) be provided with simultaneously on the plate at both ends,
Insulated tank (5) connects through the plate with being provided with the plate of cooling water flow conduits (3), and cooling water outlet and inlet (4) runs through the plate
Connected with close cooling water flow conduits (3).
2. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) according to claim 1,
Thermometric groove (2) is provided with characterized in that, being provided with the plate on the plate of cooling water flow conduits (3), thermometric groove (2) is with being somebody's turn to do
Cooling water flow conduits (3) connect, and thermometric groove (2) connects with close thermometer hole (1) respectively.
3. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) according to claim 2,
Characterized in that, the groove width of the thermometric groove (2) is 2~3mm.
4. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) according to claim 1,
Characterized in that, the insulated tank (5) and cooling water outlet and inlet (4) quantity in the plate on the plate at both ends are two
Bar, and two cooling water outlet and inlets (4) are arranged between two insulated tanks (5), and insulated tank (5) is separately positioned on close to edge
At the plate both ends for carbon dioxide runner (6) direction.
5. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) according to claim 1,
Characterized in that, the axis direction of the thermometer hole (1) and pressure tap (13) along carbon dioxide runner (6) is uniformly arranged.
6. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) according to claim 5,
Characterized in that, in the thermometer hole (1) in the spacing of adjacent thermometer hole (1), pressure tap (13) between adjacent pressure tap (13)
Away from being 50~150mm.
7. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) according to claim 1,
Characterized in that, the groove width of the insulated tank (5) is 0.5~1.5mm.
8. the compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) according to claim 1,
Characterized in that, the aperture of the pressure tap (13) is 0.5~1mm.
9. the compact sheet heat exchanger heat exchange surface local flow heat transfer of diffusion welding (DW) as claimed in any of claims 1 to 8
Characteristic measuring device, it is characterised in that the thickness of the plate is 2~4mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721196186.8U CN207123505U (en) | 2017-09-19 | 2017-09-19 | The compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196186.8U CN207123505U (en) | 2017-09-19 | 2017-09-19 | The compact sheet heat exchanger heat exchange surface local flow heat-transfer character measurement apparatus of diffusion welding (DW) |
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| CN207123505U true CN207123505U (en) | 2018-03-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326005A (en) * | 2022-10-14 | 2022-11-11 | 中国核动力研究设计院 | Method, device, equipment and medium for measuring heat exchange pellet micro-channel deformation value |
| CN115388687A (en) * | 2022-10-31 | 2022-11-25 | 中国核动力研究设计院 | Heat exchange device and Brayton cycle system |
| CN115575156A (en) * | 2022-12-09 | 2023-01-06 | 中国核动力研究设计院 | Experimental device for studying flow distribution characteristics of micro-channel heat exchanger |
| CN115790209A (en) * | 2023-02-06 | 2023-03-14 | 中国核动力研究设计院 | Plate type high-performance cooling block providing uniform boundary and using method thereof |
| CN115791244A (en) * | 2023-02-06 | 2023-03-14 | 中国核动力研究设计院 | Modular microchannel compact heat exchange experiment body, method, equipment and medium |
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2017
- 2017-09-19 CN CN201721196186.8U patent/CN207123505U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326005A (en) * | 2022-10-14 | 2022-11-11 | 中国核动力研究设计院 | Method, device, equipment and medium for measuring heat exchange pellet micro-channel deformation value |
| CN115326005B (en) * | 2022-10-14 | 2022-12-13 | 中国核动力研究设计院 | Method, device, equipment and medium for measuring heat exchange pellet micro-channel deformation value |
| CN115388687A (en) * | 2022-10-31 | 2022-11-25 | 中国核动力研究设计院 | Heat exchange device and Brayton cycle system |
| CN115575156A (en) * | 2022-12-09 | 2023-01-06 | 中国核动力研究设计院 | Experimental device for studying flow distribution characteristics of micro-channel heat exchanger |
| CN115575156B (en) * | 2022-12-09 | 2023-03-10 | 中国核动力研究设计院 | Experimental device for research microchannel heat exchanger flow distribution characteristic |
| CN115790209A (en) * | 2023-02-06 | 2023-03-14 | 中国核动力研究设计院 | Plate type high-performance cooling block providing uniform boundary and using method thereof |
| CN115791244A (en) * | 2023-02-06 | 2023-03-14 | 中国核动力研究设计院 | Modular microchannel compact heat exchange experiment body, method, equipment and medium |
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