CN117250024A - Heat exchange performance detection system of direct air cooling unit - Google Patents
Heat exchange performance detection system of direct air cooling unit Download PDFInfo
- Publication number
- CN117250024A CN117250024A CN202311253863.5A CN202311253863A CN117250024A CN 117250024 A CN117250024 A CN 117250024A CN 202311253863 A CN202311253863 A CN 202311253863A CN 117250024 A CN117250024 A CN 117250024A
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- Prior art keywords
- wind speed
- cooling unit
- air cooling
- heat exchange
- direct air
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- 238000001816 cooling Methods 0.000 title claims abstract description 53
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000013480 data collection Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
Abstract
The invention discloses a heat exchange performance detection system of a direct air cooling unit, which comprises: the system comprises an air speed scanner, a data acquisition instrument and a server; the wind speed scanner is arranged on the surface of a radiator of the direct air cooling unit through a buckle, and collects wind speed data; the data acquisition instrument is in communication connection with the wind speed scanner and is used for collecting wind speed data; the server is in communication connection with the data acquisition instrument, and converts wind speed data into heat exchange efficiency, so that the judgment of the overall heat exchange performance of the air cooling unit is obtained. According to the technical content disclosed by the invention, the wind speed measuring device is arranged on the surface of the radiator to acquire the wind speed data of the surface of the radiator in real time, so that operation and maintenance personnel can quickly confirm main reasons affecting the heat exchange performance according to the wind speed data, and timely give accurate operation and maintenance advice to an operation unit.
Description
Technical Field
The invention relates to the technical field of air coolers, in particular to a heat exchange performance detection system of a direct air cooling unit.
Background
Along with the long-term operation of the direct air cooling unit, a certain gap exists between the actual operation efficiency and the predicted ideal value, and the initial investment of the air cooling unit is relatively large, and the operation efficiency of the air cooling unit needs to be further improved based on the consideration of operation economy, so that related research on a technology for improving the heat exchange performance of the direct air cooling unit is needed.
Because the air-cooled heat dissipation system adopts an A-shaped structure, the phenomenon of uneven flow velocity such as turbulent flow and the like in the heat dissipation unit is easy to generate, and the triangular area is easy to form dead angles, so that insufficient heat exchange is caused, and the cooling capacity of the air-cooled island is reduced. The prior technical proposal is as follows: the new guide device is built in the heat dissipation unit, so that the wind speed flow in the heat dissipation device is more uniform. And in view of the long-term outdoor operation of the direct air cooling system, dirt blocking air channels can be formed on the surfaces of the fins after long-term use, so that the heat exchange efficiency and performance of the direct air cooling unit are reduced. The stable and economical operation of the air cooling unit is affected.
Therefore, how to provide a heat exchange performance detection system of a direct air cooling unit becomes a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a heat exchange performance detection system of a direct air cooling unit.
According to the invention, a heat exchange performance detection system of a direct air cooling unit is provided, which comprises an air speed scanner, a data acquisition instrument and a server;
the wind speed scanner is arranged on the surface of a radiator of the direct air cooling unit through a buckle, and collects wind speed data;
the data acquisition instrument is in communication connection with the wind speed scanner and is used for collecting wind speed data;
the server is in communication connection with the data acquisition instrument, and converts wind speed data into heat exchange efficiency, so that the judgment of the overall heat exchange performance of the air cooling unit is obtained.
Optionally, the wind speed scanner adopts vertical arrangement, and the upper end and the lower end of the wind speed scanner adopt roller designs.
Optionally, a plurality of wind speed scanners are installed on the surface of the radiator of the direct air cooling unit at equal intervals.
Optionally, the four wind speed scanners are arranged on the surface of a radiator of the direct air cooling unit at equal intervals, the interval is 0.5m, the interval between horizontal measuring points is 1.1 m, and the distance between the horizontal measuring points is 0.5m from the edge of the unit tube bundle.
Optionally, the collected wind speed data is:
data were collected 5 minutes after 3 minutes from the start of the data collection.
Optionally, the system further comprises:
the server judges the plugging of the dirt of the fins through the comparison between the real-time wind speed data and the historical wind speed data or the ideal wind speed measuring and calculating value.
Optionally, if the real-time wind speed data is lower than 90% of the historical wind speed data or an ideal wind speed measurement value, the fin dirt is blocked.
Optionally, the system further comprises:
the guide rail extends along the height direction of the surface of the radiator of the direct air cooling unit;
the sliding support is in sliding fit with the guide rail;
the wind speed scanners are sequentially arranged on the sliding support and used for detecting the wind outlet speed of the surface of a radiator of the direct air cooling unit and collecting wind speed data;
and the driving device drives the sliding support to slide back and forth along the extending direction of the guide rail.
Optionally, the sliding bracket comprises a truss structure and a guide wheel, wherein the truss structure is provided with the guide wheel and the wind speed scanner; the guide wheel is in rolling fit with the guide rail.
Optionally, the truss structure comprises a first truss and a second truss, the first truss and the second truss are connected in a telescopic way, and the telescopic direction is the length direction of the truss structure;
the truss structure further comprises a hoop; the anchor ear locks and fixes the first truss and the second truss;
the guide wheel comprises a directional wheel and universal wheels, and the directional wheel and the universal wheels are respectively arranged on two sides of the length of the sliding support.
According to the technical content disclosed by the invention, the method has the following beneficial effects: by setting the wind speed measuring device on the surface of the radiator to acquire the wind speed data of the surface of the radiator in real time, an operation and maintenance person can quickly confirm the main reason affecting the heat exchange performance according to the wind speed data and timely give accurate operation and maintenance advice to an operation unit.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of a heat exchange performance detection system of a direct air cooling unit according to an embodiment;
FIG. 2 is a front view of a mounting structure of a heat exchange performance detection system of a direct air cooling unit according to an embodiment;
FIG. 3 is a top view of a mounting structure of a heat exchange performance detection system of a direct air cooling unit according to an embodiment;
FIG. 4 is a side view of a mounting structure of a heat exchange performance detection system of a direct air cooling unit according to an embodiment;
FIG. 5 is an enlarged view at C in FIG. 2;
fig. 6 is an enlarged view of fig. 3 at B.
Reference numerals illustrate: the wind speed scanner comprises a 1-sliding support, a 11-first truss, a 12-second truss, a 13-anchor ear, a 2-guide wheel, a 21-directional wheel, a 22-universal wheel and a 3-wind speed scanner.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
According to the invention, as shown in fig. 1, a heat exchange performance detection system of a direct air cooling unit is provided, which comprises an air speed scanner 3, a data acquisition instrument and a server;
the wind speed scanner 3 is arranged on the surface of a radiator of the direct air cooling unit through a buckle, and collects wind speed data;
the data acquisition instrument is in communication connection with the wind speed scanner 3 and is used for collecting wind speed data;
the server is in communication connection with the data acquisition instrument, and converts wind speed data into heat exchange efficiency, so that the judgment of the overall heat exchange performance of the air cooling unit is obtained.
In some embodiments, the wind speed scanner 3 adopts a vertical arrangement, and the upper end and the lower end of the wind speed scanner adopt roller designs.
The plurality of wind speed scanners 3 are arranged on the surface of a radiator of the direct air cooling unit at equal intervals.
The four wind speed scanners 3 are arranged on the surface of a radiator of the direct air cooling unit at equal intervals, the interval is 0.5m, the interval between horizontal measuring points is 1.1 m, and the distance from the horizontal measuring points to the edge of the unit tube bundle is 0.5 m.
In some embodiments, the wind speed data collected is:
data were collected 5 minutes after 3 minutes from the start of the data collection.
In some embodiments, the system further comprises:
the server judges the plugging of the dirt of the fins through the comparison between the real-time wind speed data and the historical wind speed data or the ideal wind speed measuring and calculating value.
And if the real-time wind speed data is lower than 90% of historical wind speed data or an ideal wind speed measuring and calculating value, plugging the dirt of the fins.
In some embodiments, as shown in fig. 2-6, the system further comprises:
a guide rail (not shown) extending in a height direction of a radiator surface of the direct air-cooling unit;
a sliding bracket 1, wherein the sliding bracket 1 is in sliding fit with the guide rail;
the wind speed scanners 3 are sequentially arranged on the sliding support 1 and are used for detecting the wind outlet wind speed of the surface of a radiator of the direct air cooling unit and collecting wind speed data;
and a driving device (not shown in the figure) for driving the sliding bracket 1 to slide back and forth along the extending direction of the guide rail.
The sliding support 1 comprises a truss structure and a guide wheel 2, wherein the truss structure is provided with the guide wheel 2 and the wind speed scanner 3; the guide wheel 2 is in rolling fit with the guide rail.
The truss structure comprises a first truss 11 and a second truss 12, wherein the first truss 11 and the second truss 12 are connected in a telescopic manner, and the telescopic direction is the length direction of the truss structure;
the truss structure further comprises a hoop 13; the anchor ear 13 locks and fixes the first truss 11 and the second truss 12;
the guide wheel 2 comprises a directional wheel 21 and universal wheels 22, and the directional wheel 21 and the universal wheels 22 are respectively arranged on two sides of the length of the sliding support 1.
The specific working conditions are as follows:
1) The air speed scanner is arranged on the surface of a radiator of the air cooling unit, the structural design of the air speed scanner is shown in fig. 2, the air speed scanner is vertically arranged, and the upper end and the lower end of the air speed scanner are provided with idler wheels, so that the air speed scanner can conveniently move when a measuring point is changed.
2) The wind meter is arranged on the design of the wind speed scanner frame, bayonet fixing is used, and the number of the arranged wind meters is determined according to the actual condition of the project.
In the test, 4 anemometers are selected for simultaneous measurement, the interval is 0.5m, the interval between horizontal measuring points is 1.1 m, and the distance from the edge of the unit tube bundle is 0.5 m. The raw data were measured for 10 minutes at each point, and to ensure accuracy of the data, the actual sampling time of the data was selected to be 5 minutes after 3 minutes.
3) The heat exchange performance detection system of the direct air cooling unit mainly comprises a data acquisition instrument and a server, is connected with a wind speed scanner through an RS485 bus, and is mainly used for collecting, converting, judging and feeding back wind speed data.
The wind speed data is converted into heat exchange efficiency through the server, so that the judgment of the overall heat exchange performance is obtained. Whether the system of the application is reliable or not is verified through experiments, the test 1 group A machine is data tested in a mode of the prior art, the test 2 group B machine is test data obtained by adopting the method of the application, and the test 1 group is test data of the table 1; test 2 groups gave the test data of table 2.
Table 1 wind speed measurement data summary table A machine (m/s) of fan unit
TABLE 2 wind speed measurement data summary table (m/s) number B machine for fan unit
Comparing the two sets of data in tables 1 and 2, it is concluded that: the data of the test 2 group reach 22.45% compared with the wind outlet speed of the test 1 group. It can be seen that the heat exchange efficiency improved by adopting the corresponding optimization and adjustment scheme can be accurately fed back through the real-time wind speed.
The plugging condition of the dirt of the fins can be judged through the comparison between the real-time wind speed and the historical wind speed or the ideal wind speed measuring and calculating value. When the ventilation quantity of part of the air outlets is lower, namely the effective ventilation area is reduced, namely the performance of the heat exchanger is affected, the corresponding optimization space is provided. If the ventilation quantity is lower than 10%, the fins are seriously polluted, and operators need to be arranged for cleaning. Thereby improving the cleaning efficiency.
The detection system disclosed by the application can be used for detecting the wind speed data in real time:
1. and the fin plugging condition is judged, the unnecessary cleaning times are reduced, and the cleaning efficiency is improved.
2. Judging the real-time heat exchange efficiency of the unit, wherein the data can be used in multi-path demonstration, such as: whether the heat exchange efficiency of the unit reaches an ideal value or not and whether there is an improved or optimized space; auxiliary demonstration of whether the related optimization means has actual effect; and giving data references to possible optimization schemes, etc. The scheme can be simultaneously applied to various scenes of the air cooling unit by a detection method, and accurate and real-time operation suggestions are given through data.
In summary, according to the technical content disclosed by the invention, the wind speed data of the surface of the radiator is obtained in real time by setting the wind speed measuring device on the surface of the radiator, so that an operation and maintenance person can quickly confirm the main reason affecting the heat exchange performance according to the wind speed data and timely give accurate operation and maintenance advice to an operation unit.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. The utility model provides a direct air cooling unit heat transfer performance detecting system which characterized in that includes: the system comprises an air speed scanner, a data acquisition instrument and a server;
the wind speed scanner is arranged on the surface of a radiator of the direct air cooling unit through a buckle, and collects wind speed data;
the data acquisition instrument is in communication connection with the wind speed scanner and is used for collecting wind speed data;
the server is in communication connection with the data acquisition instrument, and converts wind speed data into heat exchange efficiency, so that the judgment of the overall heat exchange performance of the air cooling unit is obtained.
2. The system for detecting heat exchange performance of a direct air cooling unit according to claim 1, wherein the wind speed scanner is arranged vertically, and the upper end and the lower end of the wind speed scanner are designed as rollers.
3. The system for detecting heat exchange performance of a direct air cooling unit according to claim 2, wherein a plurality of the wind speed scanners are installed on the surface of a radiator of the direct air cooling unit at equal intervals.
4. The system for detecting the heat exchange performance of the direct air cooling unit according to claim 3, wherein the four wind speed scanners are arranged on the surface of a radiator of the direct air cooling unit at equal intervals, the distance between the four wind speed scanners is 0.5m, the distance between the horizontal measuring points is 1.1 m, and the distance between the four wind speed scanners is 0.5m from the edge of a tube bundle of the unit.
5. The direct air cooling unit heat exchange performance detection system according to claim 1, wherein the collected wind speed data is:
data were collected 5 minutes after 3 minutes from the start of the data collection.
6. The direct air cooling unit heat exchange performance detection system according to claim 1, wherein the system further comprises:
the server judges the plugging of the dirt of the fins through the comparison between the real-time wind speed data and the historical wind speed data or the ideal wind speed measuring and calculating value.
7. The system for detecting heat exchange performance of a direct air cooling unit according to claim 6, wherein the real-time wind speed data is lower than 90% of historical wind speed data or ideal wind speed measuring and calculating values, and the dirt of the fins is blocked.
8. The direct air cooling unit heat exchange performance detection system according to claim 1, wherein the system further comprises:
the guide rail extends along the height direction of the surface of the radiator of the direct air cooling unit;
the sliding support is in sliding fit with the guide rail;
the wind speed scanners are sequentially arranged on the sliding support and used for detecting the wind outlet speed of the surface of a radiator of the direct air cooling unit and collecting wind speed data;
and the driving device drives the sliding support to slide back and forth along the extending direction of the guide rail.
9. The direct air cooling unit heat exchange performance detection system according to claim 8, wherein the sliding bracket comprises a truss structure and a guide wheel, and the guide wheel and the wind speed scanner are arranged on the truss structure; the guide wheel is in rolling fit with the guide rail.
10. The direct air cooling unit heat exchange performance detection system according to claim 9, wherein the truss structure comprises a first truss and a second truss, the first truss and the second truss are connected in a telescopic manner, and the telescopic direction is the length direction of the truss structure;
the truss structure further comprises a hoop; the anchor ear locks and fixes the first truss and the second truss;
the guide wheel comprises a directional wheel and universal wheels, and the directional wheel and the universal wheels are respectively arranged on two sides of the length of the sliding support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311253863.5A CN117250024A (en) | 2023-09-26 | 2023-09-26 | Heat exchange performance detection system of direct air cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311253863.5A CN117250024A (en) | 2023-09-26 | 2023-09-26 | Heat exchange performance detection system of direct air cooling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117250024A true CN117250024A (en) | 2023-12-19 |
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ID=89128959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311253863.5A Pending CN117250024A (en) | 2023-09-26 | 2023-09-26 | Heat exchange performance detection system of direct air cooling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117250024A (en) |
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2023
- 2023-09-26 CN CN202311253863.5A patent/CN117250024A/en active Pending
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