A jet machine front end component capable of observing rapid temperature uniformity and its use method

Abstract

This invention discloses an observable and rapidly homogenizing jet generator front-end assembly and its usage method. The observable and rapidly homogenizing jet generator front-end assembly includes a visible jet hood, a jet head, a jet assembly, and a moving assembly. The jet head includes an inner tube, a mounting flange that fixes the inner tube to the visible jet hood, and an outer wall cylinder fitted on the outer wall of the inner tube and whose top end is fixed to the bottom of the top plate of the visible jet hood. The outer wall cylinder has multiple honeycomb holes evenly distributed on its outer wall. The jet assembly communicates with the top of the inner tube of the jet head, introduces a low-temperature medium into the inner tube, and can drive the inner tube to move up and down relative to the outer wall cylinder. A disturbance assembly is installed on the visible jet hood and partially extends into its interior. The disturbance assembly disturbs and strikes the liquid jetted from the jet head. This invention achieves temperature uniformity quickly and facilitates observation of the working status of the test piece.

Description

Technical Field

[0001] This invention relates to the field of cooling and temperature control technology for product testing environments, specifically to a jet generator front-end component capable of rapid temperature uniformity and its usage method. Background Technology

[0002] Many products and devices in the fields of new energy and semiconductor chips need to withstand different environmental and climatic conditions during use, especially certain aerospace products that require environmental testing under low-temperature shock conditions. For such products, a jet generator is often used to create the low-temperature environment. This presents two problems. The first is the cooling rate; the cooling rate for such temperature shocks is often controlled within twenty seconds, which traditional high and low temperature test chambers often cannot meet. The second is the temperature control accuracy in the low-temperature environment, which includes two aspects: temporal accuracy and spatial accuracy. One is the temporal accuracy of arrival at the location, mainly the inlet temperature of the jet nozzle, which is related to the performance of the cooling system, the system temperature control algorithm, and the length and shape of the jet channel. The other is spatial accuracy, which is the temperature uniformity of the test space. This is related not only to the selection of jet parameters, the shape of the test piece, and the thermal characteristics of the test piece, but also to the flow field characteristics within the test chamber. Failure to meet either of these accuracy requirements will result in overtesting or undertesting. Regarding the time accuracy in the first and second questions, mature solutions exist using jet-based methods and high-precision jet temperature control systems. However, for spatial accuracy, there are currently no specific methods to ensure that the temperature inside the shroud reaches a steady state over a sufficiently long period. The challenge lies in rapidly achieving temperature uniformity within a specified extreme timeframe. Furthermore, the temperature difference between the inside and outside of the jet shroud causes extensive frost formation on the transparent outer wall of the shroud, making it impossible to observe the working state of the test specimen during testing, thus posing significant difficulties to the testing process. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] Therefore, the purpose of this invention is to provide a jet machine front-end component with observable and rapid temperature uniformity and its usage method, which can quickly achieve temperature uniformity and facilitate the observation of the working status of the test piece.

[0005] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A jet generator front-end assembly with observable rapid temperature equalization, comprising:

[0007] Visual jet shield;

[0008] The jet head includes an inner tube, a mounting flange that fixes the inner tube to the visible jet hood, and an outer wall cylinder that is sleeved on the outer wall of the inner tube and whose top end is fixed to the bottom of the top plate of the visible jet hood. The outer wall cylinder has a plurality of honeycomb holes evenly distributed on its outer wall.

[0009] The jet assembly is connected to the top of the inner tube of the jet head, introduces a low-temperature medium into the inner tube, and can drive the inner tube to move up and down relative to the outer wall cylinder.

[0010] A disturbance component, mounted on the visible jet shroud and extending partially into it, disturbs and strikes the liquid ejected from the jet head.

[0011] As a preferred embodiment of the observable and rapidly homogenized jet generator front-end component of the present invention, the visible jet hood includes a frame, a top panel disposed on the top of the frame, and a bottom panel disposed at the bottom of the frame. The frame, the top panel, and the bottom panel form a loop space for filling with room temperature high-pressure gas. An air inlet is provided on the top panel, and an air outlet is provided on the bottom panel.

[0012] As a preferred embodiment of the observable rapid temperature equalization jet generator front-end assembly described in this invention, the disturbance component includes a drive motor mounted on the top of the visible jet shroud with its output end extending into it, a lifting rod coaxially connected to the output end of the drive motor, and a propeller mounted on the end of the lifting rod.

[0013] As a preferred embodiment of the jet generator front-end component with observable rapid temperature equalization described in this invention, it further includes a flow field turbulence adjustment component.

[0014] The inner wall of the visible jet hood has an inner membrane. Multiple temperature sensors and an array of electric push rods are arranged between the inner wall and the inner membrane of the visible jet hood. The array of electric push rods includes multiple miniature electric push rods, which can lift the inner membrane.

[0015] A method for using a jet generator front-end component with observable rapid temperature equalization, the specific steps of which are as follows:

[0016] S1. Place the test piece on the test platform, cover the test piece with the visible jet hood, and the jet machine introduces the low-temperature medium into the inner tube through the jet assembly and ejects the low-temperature medium.

[0017] S2. When the test environment requirements are high, the jet assembly drives the inner tube to move upward relative to the outer wall cylinder, and retracts the inner tube to the top surface of the visible jet hood. The low temperature medium enters the visible jet hood through multiple honeycomb holes in the outer wall cylinder.

[0018] S3. To further reduce the thermal gradient in different areas within the visible jet shroud, the propeller is lowered to a suitable position using a lifting rod, and then the drive motor is started to rotate the propeller. The rotation speed of the propeller is kept at a relatively low level. At this time, the propeller causes forced convection in the adjacent space to accelerate heat exchange and improve the temperature uniformity within the shroud.

[0019] As a preferred embodiment of the method of using the observable and rapidly temperature-equalizing jet generator front-end component described in this invention, the method further includes step S4: when the temperature sensor detects a large temperature gradient near the inner wall of the visible jet shroud, the electric push rod array pushes the inner membrane of the shroud to form small bulges, increasing the turbulence on the wall surface and accelerating heat exchange.

[0020] As a preferred embodiment of the method of using the observable and rapidly temperature-equalizing jet generator front-end component described in this invention, the method further includes step S5: a channel of normal temperature high-pressure gas is separated from the jet generator body, enters the loop space from the air inlet of the top panel, and flows out from the air outlet on the other side. Due to the presence and continuous flow of high-pressure gas in the visible jet shroud, the inner wall of the outer plate and the outer wall of the inner plate will not continuously frost, and the outer wall of the outer plate will not frost.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This invention improves the speed of temperature uniformity in three different areas: the inlet of the enclosure, the middle of the enclosure, and the wall surface of the enclosure. These three methods are achieved by increasing flow channels, increasing convection, and increasing wall roughness, respectively. The three methods can be used in combination or individually.

[0023] This invention utilizes a honeycomb structure at the jet nozzle to increase the jet range, thereby reducing the temperature inside the enclosure from room temperature to a specified temperature. It also employs a propeller to accelerate heat exchange between fluids, reducing the thermal gradient and temperature difference between different areas. Furthermore, it uses an electric push rod to create small bulges on the inner wall of the enclosure to increase turbulence, enhance fluid mixing in different areas of the wall, and accelerate heat exchange. Through a combined enclosure structure design, high-pressure gas is introduced into the cavity between the inner and outer panels of the enclosure, forming a continuous high-pressure gas circulation. This overcomes frost formation on the outer wall of the enclosure, allowing for better observation of the test specimen's working status during the experiment. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a schematic diagram of the overall structure of the front end component of a jet generator with observable rapid temperature equalization according to the present invention;

[0026] Figure 2 This is a cross-sectional view of the front end assembly of a jet generator with observable rapid temperature equalization according to the present invention.

[0027] Figure 3 This is a cross-sectional view from another direction of the jet generator front-end assembly with observable rapid temperature equalization according to the present invention;

[0028] Figure 4 This is a schematic diagram of the jet head of a jet generator front-end assembly with observable rapid temperature equalization according to the present invention. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0032] This invention provides a jet generator front-end component and its method of use that can achieve rapid temperature uniformity and facilitate observation of the working status of the test piece.

[0033] Figures 1-4 The diagram shown is a structural schematic of one embodiment of a jet generator front-end assembly with observable rapid temperature equalization according to the present invention. Please refer to [link / reference]. Figures 1-4 The front-end component of the jet generator with observable rapid temperature equalization according to this embodiment includes a main body comprising a visible jet hood 100, a jet head 200, a jet assembly 300, and a disturbance assembly 400.

[0034] The visible jet hood 100 includes a frame 110, a top panel 120 disposed on top of the frame 110, and a bottom panel 130 disposed at the bottom of the frame 110. The frame 110, top panel 120, and bottom panel 130 form a loop space H for filling with room temperature high-pressure gas. An air inlet 120a is provided on the top panel 120, and an air outlet 130a is provided on the bottom panel 130. The top panel 120 and bottom panel 130, with their respective air inlets and outlets, together with the frame 110, form a loop space H that can be filled with high-pressure gas. The high-pressure gas flows in through the air inlet 120a, passes through the loop space H, and flows out through the air outlet 130a. By maintaining the inflation process during testing, frosting can be effectively overcome.

[0035] The jet head 200 includes an inner tube 210, a mounting flange 220 that fixes the inner tube 210 to the visible jet cover 100, and an outer wall cylinder 230 that is sleeved on the outer wall of the inner tube 210 and whose top end is fixed to the bottom of the top plate of the visible jet cover 100. The outer wall of the outer wall cylinder 230 is evenly provided with a plurality of honeycomb holes 230a.

[0036] The jet assembly 300 is connected to the top of the inner tube 210 of the jet head 200, and a low-temperature medium is introduced into the inner tube 210. It can also drive the inner tube 210 to move up and down relative to the outer wall cylinder 230.

[0037] The disturbance component 400 is mounted on the visible jet shroud 100 and extends partially into it. The disturbance component 400 disturbs and strikes the liquid ejected from the jet head 200. In this embodiment, the disturbance component 400 includes a drive motor 410 mounted on the top of the visible jet shroud 100 and extending its output end into it, a lifting rod 420 coaxially connected to the output end of the drive motor 410, and a propeller 430 mounted on the end of the lifting rod 420.

[0038] In this embodiment, a flow field turbulence adjustment component 500 is also included. The inner wall of the visible jet shroud 100 has an inner membrane. Multiple temperature sensors 510 and an electric push rod array 520 are arranged between the inner wall and the inner membrane of the visible jet shroud 100. The electric push rod array 520 includes multiple miniature electric push rods. The miniature electric push rods can lift the inner membrane and push the electric push rods 10 to form small bulges on the inner membrane 11 of the inner plate 13 of the shroud, thereby increasing the turbulence of the flow field and further accelerating the process of temperature uniformity within the shroud.

[0039] Combination Figures 1-4 The specific steps of an observable and rapidly homogenized jet generator front-end assembly according to this embodiment are as follows:

[0040] S1. Place the test piece on the test table, cover the test piece with the visible jet hood 100, and the jet machine introduces the low temperature medium into the inner tube 210 through the jet assembly 300 and ejects the low temperature medium.

[0041] S2. When the test environment requirements are high, the jet assembly 300 drives the inner tube 210 to move upward relative to the outer wall cylinder 230, retracting the inner tube 210 to the top surface position of the visible jet hood 100. The cryogenic medium enters the visible jet hood 100 through multiple honeycomb holes 230a of the outer wall cylinder 230. At this time, the cryogenic gas is splashed in all directions.

[0042] S3. In order to further reduce the thermal gradient in different areas within the visible jet shroud 100, the propeller 430 is lowered to a suitable position by the lifting rod 420, and then the drive motor 410 is started to drive the propeller 430 to rotate. The rotation speed of the propeller 430 is kept at a relatively low level. At this time, the propeller 430 causes forced convection in the adjacent space to accelerate heat exchange and improve the temperature uniformity within the shroud space.

[0043] S4. When the temperature sensor 510 detects a large temperature gradient near the inner wall of the visible jet shroud 100, the electric push rod array 520 pushes the inner membrane of the shroud to form small bulges, increasing the turbulence on the wall and accelerating heat exchange.

[0044] S5. A channel of normal temperature high-pressure gas is separated from the body of the jet machine and enters the loop space H from the air inlet 120a of the top panel 120. At the same time, it flows out from the air outlet 130a on the other side. Due to the presence and continuous flow of high-pressure gas in the visible jet shroud 100, the inner wall of the outer plate and the outer wall of the inner plate will not be continuously frosted, and the outer wall of the outer plate will not be frosted.

[0045] This invention improves the speed of temperature uniformity in three different areas: the inlet of the enclosure, the middle of the enclosure, and the wall surface of the enclosure. These three methods are achieved by increasing flow channels, increasing convection, and increasing wall roughness, respectively. The three methods can be used in combination or individually.

[0046] This invention utilizes a honeycomb structure at the jet nozzle to increase the jet range, thereby reducing the temperature inside the enclosure from room temperature to a specified temperature. It also employs a propeller to accelerate heat exchange between fluids, reducing the thermal gradient and temperature difference between different areas. Furthermore, it uses an electric push rod to create small bulges on the inner wall of the enclosure to increase turbulence, enhance fluid mixing in different areas of the wall, and accelerate heat exchange. Through a combined enclosure structure design, high-pressure gas is introduced into the cavity between the inner and outer panels of the enclosure, forming a continuous high-pressure gas circulation. This overcomes frost formation on the outer wall of the enclosure, allowing for better observation of the test specimen's working status during the experiment.

[0047] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A jet generator front-end assembly with observable rapid temperature equalization, characterized in that, include: Visual jet shroud (100); The jet head (200) includes an inner tube (210), a mounting flange (220) for fixing the inner tube (210) to the visible jet hood (100), and an outer wall cylinder (230) sleeved on the outer wall of the inner tube (210) and whose top end is fixed to the bottom of the top plate of the visible jet hood (100). The outer wall cylinder (230) has a plurality of honeycomb holes (230a) evenly distributed on its outer wall. The jet assembly (300) is connected to the top of the inner tube (210) of the jet head (200), and a low-temperature medium is introduced into the inner tube (210), and the inner tube (210) can be driven to move up and down relative to the outer wall cylinder (230); A disturbance component (400) is mounted on the visible jet shroud (100) and extends partially into it, the disturbance component (400) disturbs and strikes the liquid ejected from the jet head (200); The visible jet hood (100) includes a frame (110), a top panel (120) disposed on the top of the frame (110), and a bottom panel (130) disposed on the bottom of the frame (110). The frame (110), the top panel (120), and the bottom panel (130) form a loop space (H) for filling with room temperature high pressure gas. An air inlet (120a) is provided on the top panel (120), and an air outlet (130a) is provided on the bottom panel (130). It also includes a flow field turbulence adjustment component (500); The inner wall of the visible jet hood (100) has an inner membrane. Multiple temperature sensors (510) and an electric push rod array (520) are arranged between the inner wall and the inner membrane of the visible jet hood (100). The electric push rod array (520) includes multiple miniature electric push rods, which can lift the inner membrane.

2. The jet generator front-end assembly with observable rapid temperature equalization according to claim 1, characterized in that, The disturbance component (400) includes a drive motor (410) mounted on top of the visible jet shroud (100) with its output end extending into it, a lifting rod (420) coaxially connected to the output end of the drive motor (410), and a propeller (430) mounted on the end of the lifting rod (420).

3. A method of using the observable and rapidly homogenizing jet generator front-end assembly as described in claim 2, characterized in that, The specific steps are as follows: S1. Place the test piece on the test bench, cover the test piece with the visible jet hood (100), and the jet machine introduces the low temperature medium into the inner tube (210) through the jet assembly (300) and ejects the low temperature medium. S2. When the test environment requirements are high, the jet assembly (300) drives the inner tube (210) to move upward relative to the outer wall cylinder (230), and retracts the inner tube (210) to the top surface of the visible jet hood (100). The low temperature medium enters the visible jet hood (100) through multiple honeycomb holes (230a) of the outer wall cylinder (230). S3. In order to further reduce the thermal gradient in different areas within the visible jet shroud (100), the propeller (430) is lowered to a suitable position by the lifting rod (420), and then the drive motor (410) is started to drive the propeller (430) to rotate. The rotation speed of the propeller (430) is kept at a relatively low level. At this time, the propeller (430) causes forced convection in the adjacent space to accelerate heat exchange and improve the temperature uniformity within the shroud space. S4. When the temperature sensor (510) detects a large temperature gradient near the inner wall of the visible jet shroud (100), the electric push rod array (520) pushes the inner membrane of the shroud to form small bulges, increasing the turbulence on the wall and accelerating heat exchange.

4. The method of using the observable and rapidly homogenizing jet generator front-end assembly according to claim 3, characterized in that, It also includes step S5: a normal temperature high pressure gas is separated from the body of the jet machine and enters the loop space (H) from the air inlet (120a) of the top panel (120), while flowing out from the air outlet (130a) on the other side. Due to the presence and continuous flow of high pressure gas in the visible jet hood (100), the inner wall of the outer plate and the outer wall of the inner plate will not be continuously frosted, and the outer wall of the outer plate will not be frosted.

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