CN213669374U - Walk-in high-temperature test chamber - Google Patents
Walk-in high-temperature test chamber Download PDFInfo
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- CN213669374U CN213669374U CN202022434334.3U CN202022434334U CN213669374U CN 213669374 U CN213669374 U CN 213669374U CN 202022434334 U CN202022434334 U CN 202022434334U CN 213669374 U CN213669374 U CN 213669374U
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Abstract
The utility model discloses a walk-in high temperature test box, which comprises a box body, a fan positioned on the box body and a heater arranged in the box body, wherein the box body comprises a heat preservation layer; an air inlet plate and an air outlet plate are arranged in the box body, a plurality of first air holes are formed in the air inlet plate, and a plurality of second air holes are formed in the air outlet plate; the air inlet plate and the box body form an air inlet channel, and the fan is arranged close to the air inlet channel; the air outlet plate and the box body form an air outlet channel, and the heater is close to the air outlet channel. The utility model discloses can keep the requirement of required accident condition limit environment when large-scale work piece is tested.
Description
Technical Field
The utility model relates to a high temperature test equipment field, concretely relates to walk-in high temperature test case.
Background
The walk-in high-temperature test box integrates multiple functions of high temperature, aging and the like into a whole, the high-temperature test box in the prior art generally produces standard products according to the requirements of national standard or military standard tests, but the high-temperature test box for large workpieces does not have a matched large-volume high-temperature test box. Therefore, in order to solve the problem that the rated short-circuit current test and the rated short-circuit heat capacity test are carried out on the large workpiece under the requirement of the accident working condition limit environment of over 300 ℃, a matched high-temperature test box needs to be designed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a walk-in high temperature test case, its requirement that can keep required accident operating mode limit environment when large-scale work piece is tested.
In order to solve the technical problem, the utility model provides a walk-in high temperature test box, which comprises a box body, a fan positioned on the box body and a heater arranged in the box body, wherein the box body comprises a heat preservation layer; an air inlet plate and an air outlet plate are arranged in the box body, a plurality of first air holes are formed in the air inlet plate, and a plurality of second air holes are formed in the air outlet plate; the air inlet plate and the box body form an air inlet channel, and the fan is arranged close to the air inlet channel; the air outlet plate and the box body form an air outlet channel, and the heater is close to the air outlet channel.
Further, the fan includes impeller and main part, the main part sets up the outside of box, the impeller is located the inside of box.
Further, the heat preservation includes rock wool layer and glass fiber layer, the rock wool layer is located the outside of box, the glass fiber layer is located the inboard of box.
Furthermore, the fan is connected with a driving piece through a transmission assembly, and the driving piece is located outside the box body.
Further, the transmission assembly comprises a belt transmission pair and a chain transmission pair.
Further, the driving piece is connected with the box body through a support.
Further, the heater is located inside the air outlet channel.
Furthermore, the outside of the lead of the heater is coated with a heat insulation sheath.
Furthermore, the first air holes are uniformly distributed on the air inlet plate.
Furthermore, the second air hole is formed in the lower end portion of the air outlet plate.
The utility model has the advantages that:
the air in the box body can be conveyed to the interior of the air inlet channel by using the fan, and then the air moves to the test space of the box body through the first air holes formed in the air inlet plate; when the air in the air inlet channel is driven into the test space, the pressure of the air in the test space is increased, so that the air in the test space moves to the inside of the air outlet channel through the second air hole; then, the heater arranged close to the air outlet channel is used for heating the air in the air outlet channel, and meanwhile, the fan drives the air to circulate in the box body, so that the air heated in the air outlet channel moves to the fan, is driven by the fan to enter the air inlet channel to continue circulating, and then is repeated according to the air path circulation and heat circulation modes; the cooperation of utilizing fan, air inlet plate and air outlet plate can guarantee that the temperature of the limit environment in the box heats and stabilizes at required temperature when the work piece is experimental at rated short circuit current and rated short circuit thermal capacity.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the figures illustrate: 1. a box body; 11. a rock wool layer; 12. a glass fiber layer; 13. a test space; 2. a fan; 21. a main body; 22. an impeller; 3. a heater; 4. an air inlet plate; 41. an air inlet channel; 5. an air outlet plate; 51. an air outlet channel; 6. a drive member; 61. and (4) a bracket.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, an embodiment of a walk-in high temperature test chamber according to the present invention includes a chamber 1, a fan 2 and a heater 3, wherein the fan 2 is disposed on the chamber 1 for driving air to flow in the chamber 1. The heater 3 is arranged in the box body 1, so that air is continuously heated, and the requirement of keeping a required accident working condition limit environment when a large-sized workpiece is tested is met by the temperature in the box body 1. In the embodiment, when the workpiece is subjected to a rated short-circuit current test and a rated short-circuit heat capacity test, the temperature of the limit environment in the box body 1 is heated and stabilized at 300 ℃.
An air inlet plate 4 and an air outlet plate 5 are arranged in the box body 1, wherein a plurality of first air holes are formed in the air inlet plate 4, and a plurality of second air holes are formed in the air outlet plate 5. The side wall of the air inlet plate 4 is attached to the inner wall of the box body 1, so that an air inlet channel 41 can be formed by the air inlet plate 4 and the inner wall of the box body 1, and the fan 2 is arranged close to the air inlet channel 41. The side wall of the air outlet plate 5 is attached to the inner wall of the box body 1, an air outlet channel 51 can be formed by the air outlet plate 5 and the inner wall of the box body 1, and the heater 3 is arranged close to the air outlet channel 51. In this embodiment, the air inlet plate 4 is fixed in the box body 1 along the horizontal direction, and the air outlet plate 5 is fixed in the box body 1 along the vertical direction. Because the fan 2 is arranged close to the air inlet channel 41, the air in the box body 1 can be conveyed to the inside of the air inlet channel 41 by the fan 2, and then the air moves to the test space 13 of the box body 1 through the first air holes formed in the air inlet plate 4. When the air in the air inlet channel 41 is driven into the test space 13, the pressure of the air in the test space 13 is increased, so that the air in the test space 13 moves to the inside of the air outlet channel 51 through the second air hole. Then, the heater 3 disposed near the air outlet channel 51 is used to heat the air in the air outlet channel 51, and meanwhile, the blower 2 drives the air to circulate in the box 1, so that the heated air in the air outlet channel 51 moves to the blower 2, and then is driven by the blower 2 to the air inlet channel 41 to continue circulating, and then the air path circulation and the heat circulation are repeated.
In this embodiment, the fan 2 is disposed above the box 1, and the heated air in the air outlet channel 51 is heated and then rises to the top of the box 1, so that the fan 2 is disposed above the box 1 to accelerate the circulation of the air in the box 1. The circulation of air in the box body 1 is accelerated, so that the temperature of the air in each part of the box body 1 can be promoted to be more consistent, and the temperature of each position in the box body 1 is closer; meanwhile, the temperature in the box body 1, especially in the test space 13, can be ensured to be maintained at the accident working condition limit temperature. In addition, in order to further increase the speed of the air flowing, the fan 2 is located at the intersection of the air inlet channel 41 and the air outlet channel 51.
In addition, the first air holes are uniformly distributed on the air inlet plate 4, so that air can be uniformly driven to the inside of the test space 13, the temperature in the test space 13 is more uniform, and the accuracy of a test result is kept. And meanwhile, the air inlet plate 4 is uniformly provided with first air holes, so that the air inlet plate 4 is convenient to machine, and the machining efficiency can be improved.
In this embodiment, the fan 2 is disposed above the box body 1, so that the air inlet channel 41 of the fan 2 is also located above the box body 1, and therefore, in order to ensure the stability and uniformity of the temperature in the test space 13, the second air hole is formed at the lower end of the air outlet plate 5. The air-out plate 5 is arranged along the vertical direction, and the second air holes are intensively arranged at the lower end part of the air-out plate 5, so that the gas of the air inlet channel 41 can be uniformly diffused into the test space 13, and when the gas is pushed to the lower end of the test space 13, the gas can flow to the inside of the air outlet channel 51 through the second air holes communicated with the test space 13.
The heater 3 is located inside the air outlet channel 51, and the heater 3 is disposed near the middle of the air outlet channel 51 in this embodiment. The heater 3 is arranged in the air outlet channel 51, so that the heating area of the heater 3 in the air outlet channel 51 can be increased, and the heating efficiency of the air in the air outlet channel 51 is improved. In order to reduce the influence of the temperature in the box body 1 on the performance of the heater 3, the outer portion of the lead of the heater 3 is wrapped with a heat insulation sheath in the embodiment, wherein the heat insulation sheath can be made of a high temperature resistant porcelain tube sheath.
The blower 2 includes a main body 21 and an impeller 22, the main body 21 is disposed outside the casing 1 in the present embodiment, and the impeller 22 is disposed inside the casing 1. The impeller 22 is disposed inside the cabinet 1 to facilitate the flow of air inside the cabinet 1 driven by the fan 2 to maintain the temperature inside the cabinet 1. And meanwhile, the main body 21 is arranged outside the box body 1, so that the influence of the box body 1 on the fan 2 through heat transfer can be reduced or avoided, and the use performance of the fan 2 is easy to guarantee. The preferred high temperature fan 2 of fan 2 in this application to guarantee the stability of fan 2 performance. Since the main body 21 and the impeller 22 are in the prior art, the structure of the fan 2 is not described in detail herein.
The fan 2 is connected with a driving member 6 through a transmission assembly, and the driving member 6 is located outside the box 1, and the driving member 6 is preferably a high-temperature motor in the embodiment. Place driving piece 6 in the outside of box 1 to driving piece 6 is connected with fan 2 through the transmission assembly, therefore can reduce or even avoid the temperature transmission of box 1 to on driving piece 6, with the stability of guaranteeing driving piece 6 working property. Meanwhile, the influence of the temperature of the box body 1 on the driving piece 6 during testing is reduced, so that the model selection requirement of the driving piece 6 is reduced, and the cost of the high-temperature test box is reduced.
The transmission component can be a belt transmission pair or a chain transmission pair, and the transmission component in the embodiment is a belt transmission pair. Utilize the distance between the further increase driving piece 6 and fan 2 and the box 1 of above-mentioned transmission assembly, therefore can further reduce fan 2 and box 1 to the influence of driving piece 6 to reduce the lectotype requirement to driving piece 6, also be convenient for guarantee driving piece 6 working property's reliability.
Furthermore, the driving member 6 is connected to the case 1 through a bracket 61, and the bracket 61 is made of a material having heat insulating properties in this embodiment. Utilize support 61 to apply for driving piece 6 holding power to can reduce the crooked deformation of the output shaft of driving piece 6, thereby guarantee driving piece 6 stability of service performance, also can prolong driving piece 6's life.
The case 1 includes a heat insulating layer by which heat exchange between the case 1 and the outside can be reduced, thereby maintaining the temperature inside the case 1. The heat preservation includes rock wool layer 11 and glass fiber layer 12 in this application, and wherein rock wool layer 11 is located the outside of box 1, and glass fiber layer 12 is located the inboard of box 1. The cooperation of the rock wool layer 11 and the glass fiber layer 12 can improve the heat insulation effect of the box body 1, so as to reduce the heat transfer between the box body 1 and the external environment as much as possible.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. A walk-in high-temperature test chamber is characterized by comprising a chamber body, a fan positioned on the chamber body and a heater arranged in the chamber body, wherein the chamber body comprises a heat-insulating layer; an air inlet plate and an air outlet plate are arranged in the box body, a plurality of first air holes are formed in the air inlet plate, and a plurality of second air holes are formed in the air outlet plate; the air inlet plate and the box body form an air inlet channel, and the fan is arranged close to the air inlet channel; the air outlet plate and the box body form an air outlet channel, and the heater is close to the air outlet channel.
2. The walk-in high-temperature test chamber of claim 1, wherein the fan comprises an impeller and a body, the body being disposed outside the chamber, the impeller being located inside the chamber.
3. The walk-in high-temperature test chamber of claim 1, wherein the insulating layer comprises a rock wool layer and a glass fiber layer, the rock wool layer is located on the outer side of the chamber body, and the glass fiber layer is located on the inner side of the chamber body.
4. The walk-in high-temperature test chamber as claimed in claim 1, wherein the fan is connected with a driving member through a transmission assembly, and the driving member is located outside the chamber body.
5. The walk-in high-temperature test chamber of claim 4, wherein the transmission assembly comprises a belt transmission pair and a chain transmission pair.
6. The walk-in high-temperature test chamber of claim 4, wherein the driving member is connected to the chamber body by a bracket.
7. The walk-in high-temperature test chamber according to claim 1, wherein the heater is located inside the air outlet channel.
8. The walk-in high-temperature test chamber of claim 1, wherein the wires of the heater are externally covered with a heat insulating sheath.
9. The walk-in high-temperature test chamber as claimed in claim 1, wherein the first air holes are uniformly distributed on the air inlet plate.
10. The walk-in high-temperature test chamber according to claim 1, wherein the second air vent is opened at a lower end portion of the air outlet plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022434334.3U CN213669374U (en) | 2020-10-28 | 2020-10-28 | Walk-in high-temperature test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022434334.3U CN213669374U (en) | 2020-10-28 | 2020-10-28 | Walk-in high-temperature test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213669374U true CN213669374U (en) | 2021-07-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022434334.3U Active CN213669374U (en) | 2020-10-28 | 2020-10-28 | Walk-in high-temperature test chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213669374U (en) |
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2020
- 2020-10-28 CN CN202022434334.3U patent/CN213669374U/en active Active
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