A cooling box for thermal shock testing

Abstract

A cooling box for thermal shock testing includes a lower box body with a raised rim at the top. A placement hopper is located inside the lower box body, and a lid is provided at the top. A foam ceramic filter is placed inside the placement hopper. This invention cools the heated foam ceramic filter by spraying water onto it through the lid. During the cooling process, the filter is enclosed by the lower box body and lid, preventing burns from hot steam or splashing water. The lower box body also facilitates the holding of cooling water, preventing leakage and contamination of the testing environment.

Description

Technical Field

[0001] This utility model relates to the field of foam ceramic filter testing technology, and in particular to a cooling box for thermal shock testing. Background Technology

[0002] When processing foam ceramic filters used in metallurgical casting, their thermal shock resistance is often tested through rapid heating and cooling. After rapid heating and cooling, the external appearance of the foam ceramic filter is observed to determine its thermal shock resistance. Currently, during testing, the filter is directly immersed in a cooling water tank. While this method quickly cools the foam ceramic filter, the rapid temperature rise of the cooling water often creates high-temperature steam. This steam can easily cause burns to the tester when it rises. Furthermore, localized boiling can occur during cooling, causing the heated water to splash out, which also poses a safety hazard. Utility Model Content

[0003] This invention provides a cooling box for thermal shock testing, which overcomes the shortcomings of the prior art and solves the problem of poor safety during cooling, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted: A cooling box for thermal shock testing includes a lower box body with a raised edge at the upper end, a placement hopper inside the lower box body, and a box cover at the upper end of the lower box body. A foam ceramic filter is placed inside the placement hopper.

[0005] Furthermore, the placement hopper has a funnel-shaped structure, and the lower end of the placement hopper is the smaller end.

[0006] Furthermore, the upper end of the placement hopper is formed with an upper extension ring, the upper end of the upper extension ring is formed with a limiting sleeve, the limiting sleeve is placed on the protruding edge, the cross-section of the limiting sleeve is L-shaped, and the lower end of the placement hopper is connected to a drain pipe.

[0007] Furthermore, the lid has a conical structure with a smaller upper end. The upper end of the lid is connected to a liquid inlet pipe, and the lower end of the lid has a lower extension ring. A disc is welded to the lower end of the lower extension ring, and multiple holes are opened on the disc. A concave ring is welded to the lower wall of the disc. The concave ring has a concave cross-section and is placed inside a limiting sleeve. Multiple notches are opened on the inner circumference of the concave ring. An inner ring is welded to the inner wall of the lid, and the lower end of the inner ring is welded to the disc. The holes are located inside the inner ring. The disc also has multiple connecting holes located above the concave ring. An exhaust pipe is connected to the lid, and a sealing cap is threaded to the outer end of the exhaust pipe.

[0008] Furthermore, an end cap is threaded onto the inlet pipe, and a plunger is installed inside the end cap, which passes through the inlet pipe.

[0009] Furthermore, the inner circumference of the concave ring is connected to a concave shell by a thread, and the upper wall of the concave shell is tightly attached to the lower wall of the disk.

[0010] The advantages of the above technical solution are: This invention cools the heated foam ceramic filter by spraying water onto it through the lid. During the cooling process, the foam ceramic filter is enclosed by the lower box and the lid, thus preventing burns to the tester from hot water vapor or splashes.

[0011] The present invention provides a lower box for easy holding of cooling water, so as to prevent the cooling water from leaking out and contaminating the test environment.

[0012] This utility model provides a concave ring, inner ring, and exhaust pipe to facilitate the discharge of water vapor to a designated location, so as to prevent the pressure inside the cooling box from increasing due to the generation of water vapor during the cooling process, which could cause the box lid to be lifted and water vapor to overflow, thus causing a safety accident.

[0013] The liquid inlet pipe of this invention is connected to the cooling water pipe. During cooling, cooling water is injected into the box cover through the water pipe, and the cooling water is sprayed onto the foam ceramic filter through the holes. Attached Figure Description

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0015] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0016] Figure 2 A cross-sectional structural diagram of one embodiment is shown.

[0017] Figure 3 A three-dimensional structural diagram of the lower box is shown.

[0018] Figure 4 A three-dimensional structural diagram of the container is shown.

[0019] Figure 5 A three-dimensional structural diagram of the box lid is shown. Detailed Implementation

[0020] like Figures 1-5As shown, a cooling box for thermal shock testing includes a lower box body 1. A raised edge 10 is formed at the upper end of the lower box body 1. A placement hopper 20 is provided inside the lower box body 1, and a foam ceramic filter 3 is placed inside the placement hopper 20. The placement hopper 20 has a funnel-shaped structure, with the lower end being the smaller end. An upper extension ring 2 is formed at the upper end of the placement hopper 20, and a limiting sleeve 22 is formed at the upper end of the upper extension ring 2. The limiting sleeve 22 is placed on the raised edge 10, and the cross-section of the limiting sleeve 22 has an L-shaped structure. A drain pipe 21 is connected to the lower end of the placement hopper 20.

[0021] The upper end of the lower box body 1 is provided with a box cover 4. The box cover 4 has a conical structure and the upper end of the box cover 4 is the smaller end. The upper end of the box cover 4 is connected to a liquid inlet pipe 45. The lower end of the box cover 4 is formed with a lower extension ring 40. The lower end of the lower extension ring 40 is welded to a disc 400. The disc 400 has multiple holes 49. The lower wall of the disc 400 is welded with a concave ring 41. The cross-section of the concave ring 41 is concave and the concave ring 41 is placed inside the limiting sleeve 22. The inner circumference of the concave ring 41 has multiple notches 48. The inner wall of the box cover 4 is welded with an inner ring 44. The lower end of the inner ring 44 is welded to the disc 400, and the holes 49 are located inside the inner ring 44. The disc 400 also has multiple connecting holes. The connecting holes are located above the concave ring 41. The box cover 4 is connected to an exhaust pipe 42. The outer end of the exhaust pipe 42 is connected to a sealing cap 43 by a thread. An end cap 46 is threadedly connected to the inlet pipe 45, and a plunger 47 is provided inside the end cap 46, which passes through the inlet pipe 45.

[0022] In this embodiment, the foam ceramic filter 3 is first heated to a certain temperature, and then transferred to the placement hopper 20. Since the placement hopper 20 has a conical structure, it is convenient to support the disc-shaped foam ceramic filters 3 of different diameters, thereby expanding the scope of application.

[0023] The tester then places the concave ring 41 at the lower end of the lid 4 into the limiting sleeve 22, and then opens the cooling water valve. Cooling water then enters the cavity formed by the disc 400, the inner ring 44 and the lid 4 through the water pipe, and is then sprayed onto the foam ceramic filter 3 below through the hole 49. When the cooling water comes into contact with the foam ceramic filter 3 heated to a certain temperature, some of the water will vaporize directly, and the rest will flow along the placement hopper 20 and the drain pipe 21 into the lower box 1. The vaporized water vapor will enter the concave ring 41 through the notch 48, and then be discharged through the connecting hole into the cavity formed by the inner ring 44, the disc 400 and the lower extension ring 40, and finally be discharged through the exhaust pipe 42. During operation, in order to avoid the water vapor from being sprayed and causing burns to the tester, the tester should be turned to a safe side.

[0024] In some embodiments, the inner circumference of the concave ring 41 is threadedly connected to a concave shell 5, and the upper wall of the concave shell 5 is tightly attached to the lower wall of the disc 400. When the lid 4 is not in use, the concave shell can seal the disc 400 and its holes 49 to prevent impurities from entering the lid 4. It also seals the liquid inlet pipe 45 through the end cap 46 and the exhaust pipe 42 through the sealing cap 43 to prevent impurities from entering the lid 4 and causing blockage of its holes.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cooling box for thermal shock testing, characterized in that, Includes a lower box body (1), the upper end of the lower box body (1) is formed with a raised edge (10), the lower box body (1) is provided with a placement hopper (20), the upper end of the lower box body (1) is provided with a box cover (4), and the foam ceramic filter is placed in the placement hopper (20).

2. The cooling box for thermal shock testing according to claim 1, characterized in that, The placement hopper (20) has a funnel-shaped structure, and the lower end of the placement hopper (20) is the small end.

3. The cooling box for thermal shock testing according to claim 2, characterized in that, The upper end of the placement bucket (20) is formed with an upper extension ring (2), and the upper end of the upper extension ring (2) is formed with a limiting sleeve (22). The limiting sleeve (22) is placed on the protruding edge (10). The cross section of the limiting sleeve (22) is L-shaped. The lower end of the placement bucket (20) is connected to a drain pipe (21).

4. The cooling box for thermal shock testing according to claim 1, characterized in that, The lid (4) has a conical structure, and the upper end of the lid (4) is the smaller end. The upper end of the lid (4) is connected to the liquid inlet pipe (45). The lower end of the lid (4) is formed with a lower extension ring (40). A disc (400) is welded to the lower end of the lower extension ring (40). Multiple holes (49) are opened on the disc (400). A concave ring (41) is welded to the lower wall of the disc (400). The cross-section of the concave ring (41) is concave. The concave ring (41) is placed on the limiting sleeve (22). Inside, the inner circumference of the concave ring (41) is provided with multiple notches (48), and the inner wall of the box cover (4) is welded with an inner ring (44). The lower end of the inner ring (44) is welded to the disc (400), and the eye (49) is located inside the inner ring (44). The disc (400) is also provided with multiple connecting holes, which are located above the concave ring (41). The box cover (4) is connected with an exhaust pipe (42), and the outer end of the exhaust pipe (42) is connected to a sealing cap (43) by a thread.

5. The cooling box for thermal shock testing according to claim 4, characterized in that, An end cap (46) is threaded onto the inlet pipe (45), and a plunger (47) is provided inside the end cap (46). The plunger (47) passes through the inlet pipe (45).

6. The cooling box for thermal shock testing according to claim 4, characterized in that, The inner circumference of the concave ring (41) is connected to a concave shell (5) by a thread, and the upper wall of the concave shell (5) is in close contact with the lower wall of the disc (400).

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