CN216483832U - Fin resistance characteristic testing device for plate-fin heat exchanger - Google Patents
Fin resistance characteristic testing device for plate-fin heat exchanger Download PDFInfo
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- CN216483832U CN216483832U CN202122907219.8U CN202122907219U CN216483832U CN 216483832 U CN216483832 U CN 216483832U CN 202122907219 U CN202122907219 U CN 202122907219U CN 216483832 U CN216483832 U CN 216483832U
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Abstract
The utility model provides a device for testing the fin resistance characteristic of a plate-fin heat exchanger with a compact structure. The fin resistance characteristic testing device of the plate-fin heat exchanger comprises a wind tunnel channel and a testing container communicated with the wind tunnel channel, wherein a pressure sensor and a temperature sensor are arranged at an inlet and an outlet of the wind tunnel channel, a containing cavity used for placing a fin test piece is arranged in the testing container, a pressure drop testing part is arranged outside the testing container, and a pressure taking port used for being connected with the pressure drop testing part is arranged at the inlet and the outlet of the testing container. The utility model can directly test the resistance characteristic of the fin, has small device volume and small occupied area of a test field, reduces the test cost, quickly diffuses the air fluid in the test container during the test, improves the test efficiency, is convenient for loading the fin test piece and is suitable for testing the fin test pieces with various height sizes.
Description
Technical Field
The utility model relates to a fin testing device, in particular to a fin resistance characteristic testing device for a plate-fin heat exchanger.
Background
The plate-fin heat exchanger is a heat exchange device with high heat transfer efficiency and large heat exchange surface per unit volume, has a compact structure, and is particularly suitable for application in petrochemical, energy and refrigeration industries.
The fin is used as the most core heat transfer unit of the plate-fin heat exchanger and has various forms, such as straight fins, sawtooth fins, corrugated fins and the like. After the fin is machined and manufactured, a series of tests are required to be carried out on the fin, and the test on the flow resistance characteristic of the fin is an important content.
Among the prior art, though there is the device that carries out heat transfer performance test to the finned tube, as the utility model discloses a finned tube heat transfer performance test system of chinese utility model patent application No. 2017202408758, including air supply section, experimental section and the wake section that makes the air reach stable effect, nevertheless the device truns into the design of test finned tube, and the device is bulky, and test site area occupied is big, and is also higher to the fluid power source requirement that needs were equipped with, is unfavorable for saving test cost and improvement efficiency of software testing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fin resistance characteristic testing device of a plate-fin heat exchanger, which has a compact structure, can be quickly deployed and directly test the resistance characteristic of fins, has wide applicability to a test field and solves the problems in the background art.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a plate-fin heat exchanger fin resistance characteristic testing arrangement, includes wind-tunnel passageway and the test container with wind-tunnel passageway intercommunication, the entry and exit department of wind-tunnel passageway all is equipped with pressure sensor and temperature sensor, the inside holding chamber that is used for placing the fin test piece that is equipped with of test container, the test container outside is equipped with pressure drop test part, the entry and exit department of test container all is equipped with the pressure mouth of getting that is used for connecting pressure drop test part.
Preferably, the wind tunnel channel comprises an air inlet pipe and an air outlet pipe, the air inlet pipe is communicated with the inlet end of the testing container, and the air outlet pipe is communicated with the outlet end of the testing container.
Preferably, the air outlet pipe is provided with a flow meter.
Preferably, the part of the test container, which is adjacent to the two ends, is provided with a reducing section, and the reducing section enables the inner diameter of the middle part of the accommodating cavity to be larger than the inner diameters of the two ends of the accommodating cavity.
Preferably, the inner diameters of the two ends of the accommodating cavity are larger than the inner diameter of the wind tunnel channel.
Preferably, the test container side wall is provided with a test piece placing door, the test piece placing door is detachably and fixedly connected with the test container, a pressing plate is arranged on the inner side of the test piece placing door, and the pressing plate is connected with the test piece placing door through an adjusting bolt.
Preferably, a sealing element is arranged at the joint of the test piece placing door and the test container.
Preferably, the pressure drop test part is a differential pressure transmitter.
The utility model has the beneficial effects that:
(1) the resistance characteristic testing device for the fin of the plate-fin heat exchanger can directly test the resistance characteristic of the fin, has small volume and small occupied area of a test field, and reduces the test cost;
(2) when the utility model is used for testing, the air fluid in the testing container is quickly diffused, so that the testing efficiency is improved;
(3) the utility model is convenient for loading the fin test piece and is suitable for testing the fin test pieces with various height sizes;
(4) the accommodating cavity has good sealing effect and ensures the testing effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the specimen mount door according to the present invention;
FIG. 3 is a schematic bottom view of the specimen holding door of the present invention.
In the figure: 1. the device comprises a wind tunnel channel, 2, a testing container, 3, a pressure sensor, 4, a temperature sensor, 5, an accommodating cavity, 6, a pressure drop testing component, 7, a pressure taking port, 8, a flowmeter, 101, an air inlet pipe, 102, an air outlet pipe, 201, a diameter-changing section, 202 and a test piece placing door, 203, a pressing plate, 204, an adjusting bolt, 205 and a sealing piece.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific examples in conjunction with the accompanying drawings. It is to be understood that the practice of the utility model is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the utility model.
In the present invention, all parts and percentages are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
Example 1:
the fin resistance characteristic testing device for the plate-fin heat exchanger shown in fig. 1 comprises a wind tunnel channel 1 and a testing container 2 communicated with the wind tunnel channel 1, wherein pressure sensors 3 and temperature sensors 4 are arranged at an inlet and an outlet of the wind tunnel channel 1.
The inside holding chamber 5 that is used for placing the fin test piece that is equipped with of test container 2, the fin test piece is placed with test container 2 parallel. The outside of the test container 2 is provided with a pressure drop test part 6 for detecting the pressure difference between the inlet and the outlet of the fin test piece, and the inlet and the outlet of the test container 2 are provided with pressure taking ports 7 for connecting the pressure drop test part 6.
Through the technical scheme, the resistance characteristic testing device for the fin of the plate-fin heat exchanger can directly test the resistance characteristic of the fin, is small in size, small in occupied area of a test field and low in test cost.
Example 2:
the fin resistance characteristic testing device for the plate-fin heat exchanger shown in fig. 1 comprises a wind tunnel channel 1 and a testing container 2 communicated with the wind tunnel channel 1. The wind tunnel channel 1 comprises an air inlet pipe 101 and an air outlet pipe 102, the air inlet pipe 101 is communicated with the inlet end of the testing container 2, the air outlet pipe 102 is communicated with the outlet end of the testing container 2, and the air outlet pipe 102 is provided with a flowmeter for detecting the air flow conveniently. The inlet and outlet of the wind tunnel channel 1 are provided with a pressure sensor 3 and a temperature sensor 4.
The inside holding chamber 5 that is used for placing the fin test piece that is equipped with of test container 2, the fin test piece is placed with test container 2 parallel. And a pressure drop testing part 6 is arranged outside the testing container 2 and used for detecting the pressure difference of the inlet and the outlet of the fin test piece, and the pressure drop testing part 6 is a differential pressure transmitter. The inlet and outlet of the testing container 2 are provided with pressure taking ports 7 for connecting the pressure drop testing component 6.
In order to make the air fluid entering the testing container 2 diffuse and distribute in the containing cavity 5 of the testing container 2, the two adjacent ends of the testing container 2 are provided with the reducing sections 201, and the reducing sections 201 make the inner diameter of the middle part of the containing cavity 5 larger than the inner diameter of the two ends of the containing cavity 5. In order to further improve the fluid diffusion effect, the inner diameters of the two ends of the accommodating cavity 5 are larger than the inner diameter of the wind tunnel channel 1.
For conveniently loading the fin test piece, the test container 2 lateral wall is equipped with the test piece and places door 202, the test piece is placed door 202 and can be dismantled fixed connection with test container 2, in order to improve the detection adaptability to the fin test piece of different height, as shown in fig. 2, the test piece is placed the door 202 inboard and is equipped with clamp plate 203, clamp plate 203 passes through adjusting bolt 204 and connects the test piece and place door 202, after loading the fin test piece, four lateral wall surfaces of fin test piece all with holding chamber 5 inner wall and clamp plate 203 butt, the fin test piece is by firm being fixed in holding chamber 5. In order to improve the sealing effect of the accommodating cavity 5, as shown in fig. 3, a sealing member 205 is disposed at a joint of the test piece placing door 202 and the test container 2, and the sealing member 205 is an elastic sealing ring.
Through the technical scheme, firstly, the resistance characteristic of the fin can be directly tested, the device is small in size, the occupied area of a test field is small, and the test cost is reduced; the air fluid of the test container is quickly diffused during testing, so that the testing efficiency is improved; thirdly, the fin test piece is convenient to load and can be suitable for testing fin test pieces with various height sizes; fourthly, the sealing effect of the accommodating cavity is good, and the testing effect is ensured.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the utility model as set forth in the claims.
Claims (8)
1. The utility model provides a plate-fin heat exchanger fin resistance characteristic testing arrangement which characterized in that: the fin resistance characteristic testing device of the plate-fin heat exchanger comprises a wind tunnel channel (1) and a testing container (2) communicated with the wind tunnel channel (1), wherein a pressure sensor (3) and a temperature sensor (4) are arranged at an inlet and an outlet of the wind tunnel channel (1), a containing cavity (5) for placing a fin test piece is arranged inside the testing container (2), a pressure drop testing part (6) is arranged outside the testing container (2), and a pressure taking port (7) for connecting the pressure drop testing part (6) is arranged at the inlet and the outlet of the testing container (2).
2. The device for testing the fin resistance characteristic of the plate-fin heat exchanger according to claim 1, wherein: the wind tunnel channel (1) comprises an air inlet pipe (101) and an air outlet pipe (102), the air inlet pipe (101) is communicated with the inlet end of the testing container (2), and the air outlet pipe (102) is communicated with the outlet end of the testing container (2).
3. The device for testing the fin resistance characteristic of the plate-fin heat exchanger according to claim 2, wherein: the air outlet pipe (102) is provided with a flowmeter (8).
4. The device for testing the fin resistance characteristic of the plate-fin heat exchanger according to claim 1, wherein: the test container (2) is provided with a reducing section (201) adjacent to two ends, and the reducing section (201) enables the inner diameter of the middle part of the containing cavity (5) to be larger than the inner diameters of two ends of the containing cavity (5).
5. The device for testing the fin resistance characteristic of the plate-fin heat exchanger according to claim 1, wherein: the inner diameters of the two ends of the accommodating cavity (5) are larger than the inner diameter of the wind tunnel channel (1).
6. The device for testing the fin resistance characteristic of the plate-fin heat exchanger according to claim 1, wherein: the test container is characterized in that a test piece placing door (202) is arranged on the side wall of the test container (2), the test piece placing door (202) is detachably and fixedly connected with the test container (2), a pressing plate (203) is arranged on the inner side of the test piece placing door (202), and the pressing plate (203) is connected with the test piece placing door (202) through an adjusting bolt (204).
7. The device for testing the fin resistance characteristic of the plate-fin heat exchanger according to claim 6, wherein: and a sealing piece (205) is arranged at the joint of the test piece placing door (202) and the test container (2).
8. The device for testing the fin resistance characteristic of the plate-fin heat exchanger according to claim 1, wherein: the pressure drop testing component (6) is a differential pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122907219.8U CN216483832U (en) | 2021-11-22 | 2021-11-22 | Fin resistance characteristic testing device for plate-fin heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122907219.8U CN216483832U (en) | 2021-11-22 | 2021-11-22 | Fin resistance characteristic testing device for plate-fin heat exchanger |
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| Publication Number | Publication Date |
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| CN216483832U true CN216483832U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122907219.8U Active CN216483832U (en) | 2021-11-22 | 2021-11-22 | Fin resistance characteristic testing device for plate-fin heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115060455A (en) * | 2022-08-18 | 2022-09-16 | 杭州飞仕得科技有限公司 | Test section structure of radiator test wind tunnel |
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2021
- 2021-11-22 CN CN202122907219.8U patent/CN216483832U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115060455A (en) * | 2022-08-18 | 2022-09-16 | 杭州飞仕得科技有限公司 | Test section structure of radiator test wind tunnel |
| CN115060455B (en) * | 2022-08-18 | 2022-10-28 | 杭州飞仕得科技有限公司 | Test section structure of radiator test wind tunnel |
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