A low temperature impact sample drying apparatus

Abstract

The utility model relates to a drying device, and aims at overcoming the defects in the above background art, and provides a low temperature impact sample drying device, and the device should have the characteristics of convenient use and good drying effect. The technical scheme of the utility model is: a low temperature impact drying device, characterized by comprising a dryer, a wind baffle cover installed on the upper end of the dryer, a warm air blower fixed on one side of the dryer and a pull-out box movably positioned in the dryer.

Description

Technical Field

[0001] This utility model relates to a drying device, specifically a low-temperature impact drying device. Background Technology

[0002] Cryogenic impact testing is an important test method for evaluating a material's ability to resist impact loads under low-temperature conditions. Many materials undergo a brittle-to-ductile transition at low temperatures, that is, a change from ductile fracture to brittle fracture. For austenitic stainless steels with a design temperature below -196°C, a -196°C cryogenic impact test is typically required. Cryogenic impact testing allows determination of the brittle-to-ductile transition temperature, the critical temperature at which a material transitions from a ductile to a brittle state. This is crucial for ensuring the safe use of materials in low-temperature environments, such as aerospace and polar engineering, where materials need to maintain good toughness in extremely low-temperature environments to avoid accidents caused by brittle fracture.

[0003] Low-temperature impact fracture analysis is an important method for evaluating the impact resistance of materials under low-temperature conditions. By observing and analyzing the fracture morphology, the fracture characteristics and performance changes of materials at low temperatures can be obtained. By observing the fracture morphology of materials at different temperatures, the temperature range in which the material transitions from ductile fracture to brittle fracture, i.e., the ductile-brittle transition temperature (DBTT), can be determined. This is crucial for ensuring the safety of materials in practical use.

[0004] The ambient temperature during low-temperature impact testing is low, resulting in a similarly low sample temperature. After the test, exposure to a normal environment easily leads to condensation on the sample surface, causing rust or contamination, making subsequent observation of the impact fracture surface difficult. Therefore, it is necessary to heat and dry the sample as soon as possible after the low-temperature impact test. Currently, this is mainly done by using a handheld heater to dry the sample fracture surface, which is inefficient and lacks timeliness. Therefore, designing a low-temperature drying device is essential. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings in the above-mentioned background technology and provide a low-temperature impact sample drying device that is easy to use and has a good drying effect.

[0006] The technical solution of this utility model is:

[0007] A low-temperature impact drying device is characterized by comprising a dryer, a windproof cover installed on the upper end of the dryer, a heater fixed on one side of the dryer, and a drawer movably positioned in the dryer.

[0008] The dryer includes a box body composed of baffles, a square funnel located at the upper end of the box body, and a fixing plate located at the lower end of the box body.

[0009] The box body includes an inlet located on the left side of the box body and cooperating with the heater, an outlet located on the right side of the box body, a drawer hole located on the front side of the box body, and a guide step located inside the box body; the inlet is slightly higher than the drawer.

[0010] The windshield is equipped with a handle, and the windshield has chamfered edges around its perimeter.

[0011] Exports exceeded imports.

[0012] The central axis of the air outlet of the heater maintains a certain angle with the baffle of the box.

[0013] The beneficial effects of this utility model are:

[0014] This utility model has a compact and lightweight structure with a simple design. Low-temperature impact samples can be quickly dried after falling into the drying device via a conveyor belt. The hot air from the heater heats up the low-temperature sample to ensure clean drying of the fracture surface. The hot air is refracted multiple times inside the dryer before being discharged outward from the outlet. This reduces energy consumption while increasing the contact time between the hot air and the sample, thus ensuring the drying effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of an embodiment of this utility model.

[0017] Figure 3 This is a schematic diagram of the right side structure of an embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the left-side structure of an embodiment of this utility model.

[0019] Figure 5 This is a top view of an embodiment of the present invention.

[0020] Figure 6 This is a three-dimensional structural diagram of the dryer according to an embodiment of the present invention.

[0021] Figure 7 This is a top view of the dryer according to an embodiment of the present invention.

[0022] Figure 8 This is a front view structural schematic diagram of the windshield cover according to an embodiment of the present utility model.

[0023] Figure 9 This is a three-dimensional structural diagram of the drawer box according to an embodiment of the present utility model.

[0024] Figure 10 yes Figure 2 A sectional view along the AA direction.

[0025] Figure 11 yes Figure 4 BB-direction sectional view.

[0026] Figure 12 This is a schematic diagram of the hot air direction.

[0027] Figure label:

[0028] Dryer 1, Funnel 1.1, Drawer hole 1.2, Fixing plate 1.3, Outlet 1.4, Guide step 1.5, Inlet 1.6, Baffle 1.7, Windproof cover 2, Chamfer 2.2, Handle 2.3, Drawer 3, Heater 4. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0030] like Figure 1 and Figure 2 As shown, a low-temperature impact sample drying device includes a dryer 1, a windproof cover 2, a drawer 3, and a heater 4. The heater provides hot air for drying the sample.

[0031] like Figure 6 As shown, the dryer includes a fixed plate 1.3, a box body, and a funnel 1.1. The box body is disposed on the top surface of the fixed plate, and the top of the box body is connected to the funnel. The drawer can be horizontally pulled out and installed on the box body.

[0032] The box is formed by four 1.7-meter-wide baffles, with the top surface of the box open; the front of the box ( Figure 2 The baffle on one side (as shown) has a drawer hole 1.2; the baffles on the left and right sides of the box body have an inlet 1.6 and an outlet 1.4 respectively, with the inlet located on the left side baffle of the box body ( Figure 2 The outlet is located in the lower middle part of the left side baffle, and the outlet is located in the right side baffle. Figure 2 Above the right-side baffle, the outlet is higher than the inlet; a guide step of 1.5 meters is provided on both the left and right sides of the bottom of the box. Figure 7 As shown, the upper end face of the guide step is flush with the lower end face of the drawer hole, and the drawer can be positioned horizontally within the box body through the drawer hole and the guide step.

[0033] The funnel has two square holes, one at the top and one at the bottom, which are larger at the top and smaller at the bottom. The funnel hole at the bottom of the funnel is connected to the opening at the top of the box body, so that the sample to be dried can smoothly enter the box body through the funnel and play a certain buffering role for the sample to be dried.

[0034] like Figure 9 As shown, the drawer box is flat, with the inlet slightly higher than the drawer box. This minimizes the inlet height and maximizes the height difference between the inlet and outlet.

[0035] The panel of the drawer is slightly larger than the drawer hole to fit into the drawer hole and serve as a limit; the panel of the drawer is also equipped with a handle for easy pulling out of the drawer.

[0036] like Figure 8 As shown, the top surface of the windshield is provided with a handle 2.3. The four perimeters of the windshield are provided with chamfers 2.2 that mate with the funnel to maintain a seal between the windshield and the funnel (e.g., Figure 1 (As shown).

[0037] The air outlet of the heater is connected to the inlet, and hot air is delivered into the dryer through the inlet.

[0038] The central axis of the air outlet of the heater maintains a certain angle (generally 45 degrees) with the baffle of the housing. When the heater is working, the generated hot air enters the housing at a certain angle (maintaining a 45-degree angle with the baffle). Figure 12 As indicated by the arrow, the hot air forms a vortex due to refraction between the four baffles. Since the outlet is located at the top, the vortex flows from bottom to top and is discharged through the outlet.

[0039] The working principle of this utility model is as follows:

[0040] 1. Insert the drawer into the box, close the windproof cover, turn on the heater, and blow hot air into the box to preheat it and remove the moisture inside.

[0041] 2. Open the windproof cover and wait for the dried sample to fall into the extraction box through the funnel;

[0042] 3. Cover the windproof cover. At this time, a relatively sealed environment is formed inside the box. The vortex generated by the heater flows around the sample to be dried, ensuring that the hot air can fully contact the sample, increasing the contact time between the hot air and the sample to be dried, so that the sample is fully dried and the drying effect is guaranteed.

[0043] 4. After drying is complete, turn off the heater, open the drawer and take out the dried sample.

[0044] The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

Claims

1. A low-temperature impact sample drying device, characterized in that: Includes a dryer (1), a windproof cover (2) installed on the top of the dryer, a heater (4) fixed on one side of the dryer, and a drawer (3) that is movably positioned in the dryer. The dryer includes a box body composed of baffles (1.7), a funnel (1.1) located at the upper end of the box body, and a fixing plate (1.3) located at the lower end of the box body. The box body includes an inlet (1.6) located on the left side of the box body and cooperating with the heater, an outlet (1.4) located on the right side of the box body, a drawer hole (1.2) located on the front side of the box body, and a guide step (1.5) located inside the box body; the inlet is slightly higher than the drawer.

2. The low-temperature impact sample drying device according to claim 1, characterized in that: The windshield is provided with a handle (2.3) and the windshield is provided with chamfers (2.2) around its perimeter.

3. The low-temperature impact sample drying device according to claim 2, characterized in that: Exports exceeded imports.

4. The low-temperature impact sample drying apparatus according to claim 3, characterized in that: The central axis of the air outlet of the heater maintains a certain angle with the baffle of the box.

Images