Automatic pressure relief device
By designing an automatic pressure relief device, the vacuum atomization equipment is automatically depressurized and sealed using a robotic arm and support structure, solving the problem of excessive pressure in the vacuum chamber and ensuring the safety and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINZHOU NICE METALLURGICAL EQUIPMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
In the process of powder making, vacuum atomization equipment needs to release pressure when the pressure in the vacuum chamber exceeds the limit. However, existing technology makes it difficult to achieve automatic pressure release and prevent atmospheric air from entering the vacuum chamber, which could cause material oxidation or explosion.
Design an automatic pressure relief device, including a valve seat, a valve body, and a robotic arm. The robotic arm automatically opens the valve to relieve pressure when the pressure in the vacuum chamber reaches its limit, and then closes itself after pressure relief. The combination of support bars, pins, and bolts ensures the reliability and sealing of the valve.
It achieves automatic pressure relief and sealing protection of the vacuum chamber, avoiding the risks of material oxidation and explosion, and ensuring the safety and stability of the equipment.
Smart Images
Figure CN224188087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum atomization equipment technology, and more specifically, to an automatic pressure relief device. Background Technology
[0002] Vacuum atomization equipment is a key industrial equipment used to prepare high-purity, high-performance metal or alloy powders. It is widely used in additive manufacturing, powder metallurgy, electronic materials and other fields. Its core principle is to break molten metal into tiny droplets by high-pressure gas or centrifugal force in a vacuum environment, and then rapidly cool and solidify them into powder.
[0003] During the powder-making process of the vacuum atomization equipment, the pressure inside the vacuum chamber gradually increases. The pressure-bearing capacity of the vacuum chamber is limited, so there must be a limit to the pressure value. When the limit pressure is exceeded, the pressure relief valve needs to be opened to release the pressure. In addition, after releasing the pressure, it is also necessary to prevent the atmosphere from entering the vacuum chamber, which could cause the material to oxidize or explode when the material comes into contact with oxygen. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides an automatic pressure relief device that overcomes or at least partially solves the above technical problems.
[0005] This utility model is implemented as follows:
[0006] This utility model provides an automatic pressure relief device, including a valve seat and a valve shell. The valve seat is connected to the valve shell by a hexagonal bolt. A valve is provided on the right side of the valve seat to form a sealed cavity. A mechanical arm is provided on the inner wall of the valve shell. The mechanical arm is configured to generate radial displacement when the internal pressure of the cavity exceeds a threshold, thereby releasing the blockage of the valve and forming a pressure relief passage.
[0007] In a preferred embodiment, a support bar is installed on the inner wall of the valve body, a pin is provided on the left side of the support bar, the robotic arm is mounted on the surface of the pin, and a first bolt is provided on the outer side of the support bar, the first bolt passing through the support bar and connecting to the valve seat.
[0008] In a preferred embodiment, a second bolt is provided on the outer side of the robotic arm, the second bolt passing through the robotic arm and threadedly connected to the valve.
[0009] In a preferred embodiment, a first sealing ring is provided on the right side of the valve seat, and the first sealing ring is located inside the valve seat and the valve body.
[0010] In a preferred embodiment, a third bolt is provided on the right side of the valve body, the third bolt passing through the valve body and threadedly connecting the first sealing ring and the valve seat.
[0011] In a preferred embodiment, a second sealing ring is embedded on the left side of the valve seat, and a fourth bolt is installed on the left side of the valve seat.
[0012] The automatic pressure relief device provided by this utility model has the following beneficial effects:
[0013] 1. By setting up a robotic arm and a valve, the valve can be installed by the robotic arm, and when the pressure in the vacuum chamber reaches its limit, the valve will be opened. After the valve is closed, the pressure will be released, and the valve will automatically close due to the installation angle and its own weight.
[0014] 2. By setting up support bars, pins, and a first bolt, the support bars can be installed using the first bolt, allowing the robotic arm to rotate via the pin, thus enabling the valve to open to release pressure and close. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure provided by an embodiment of the present invention;
[0017] Figure 2 A side view of the valve housing structure provided for an embodiment of this utility model;
[0018] In the diagram: 1. Valve seat; 2. Valve body; 3. Valve; 4. Robotic arm; 5. Support bar; 6. Pin; 7. First bolt; 8. Second bolt; 9. First sealing ring; 10. Third bolt; 11. Second sealing ring; 12. Fourth bolt. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Reference Figures 1-2This utility model provides a technical solution: an automatic pressure relief device, including a valve seat 1 and a valve shell 2. The valve seat 1 is connected to the valve shell 2 by a hexagonal bolt. A valve 3 is provided on the right side of the valve seat 1. A mechanical arm 4 is provided on the inner wall of the valve shell 2. The valve 3 can be installed by the mechanical arm 4 so that when the pressure in the vacuum chamber reaches the limit, the valve 3 is opened, and then the valve 3 is closed to relieve pressure. After the pressure is relieved, the valve 3 automatically closes due to the installation angle and its own weight.
[0021] Reference Figures 1-2 In a preferred embodiment, a support bar 5 is installed on the inner wall of the valve body 2, and a pin 6 is provided on the left side of the support bar 5. The robotic arm 4 is installed on the surface of the pin 6, and a first bolt 7 is provided on the outer side of the support bar 5. The first bolt 7 passes through the support bar 5 and connects to the valve seat 1. The support bar 5 can be installed by the first bolt 7, so that the robotic arm 4 can rotate through the pin 6, so that the valve 3 can open to release pressure and close.
[0022] Reference Figures 1-2 In a preferred embodiment, a second bolt 8 is provided on the outer side of the robotic arm 4. The second bolt 8 passes through the robotic arm 4 and is threadedly connected to the valve 3. The valve 3 can be connected to the robotic arm 4 through the second bolt 8, so that when the robotic arm 4 rotates, it drives the valve 3 to rotate and close. A first sealing ring 9 is provided on the right side of the valve seat 1, and the first sealing ring 9 is located on the inner side of the valve seat 1 and the valve shell 2. A third bolt 10 is provided on the right side of the valve shell 2. The third bolt 10 passes through the valve shell 2 and is threadedly connected to the valve seat 1 through the first sealing ring 9. This allows the first sealing ring 9 to seal the gap between the valve seat 1 and the valve shell 2, thereby preventing pressure leakage at the gap and affecting the sealing performance of the vacuum chamber.
[0023] Reference Figure 1 In a preferred embodiment, a second sealing ring 11 is embedded on the left side of the valve seat 1, and a fourth bolt 12 is installed on the left side of the valve seat 1. The valve seat 1 and the vacuum chamber can be connected by the second sealing ring 11 and the fourth bolt 12 to avoid gaps between the valve seat 1 and the vacuum chamber, which would affect the sealing performance of the vacuum chamber.
[0024] Specifically, the working process or working principle of this automatic pressure relief device is as follows: In use, the valve seat 1 is aligned with the valve body 2, and the valve seat 1 and valve body 2 are installed by the third bolt 10. Then, the valve seat 1 is connected to the vacuum chamber, and the fourth bolt 12 is tightened to install the valve seat 1. After the valve seat 1 is installed, it is set at a 15-degree angle. When the pressure in the vacuum reaches the ultimate pressure, the pressure impacts the valve 3, pushing the valve 3 to open, so that the valve 3 is opened to relieve pressure. After the pressure is relieved, due to the installation angle of the valve seat 1 and the weight of the valve 3, the valve 3 automatically closes, thereby realizing the automatic opening and closing of the valve 3 for pressure relief.
Claims
1. An automatic pressure relief device, comprising a valve seat (1) and a valve housing (2), characterized in that; The valve seat (1) is connected to the valve body (2) by a hexagonal bolt. A valve (3) is provided on the right side of the valve seat (1) to form a sealed cavity. A mechanical arm (4) is provided on the inner wall of the valve body (2). The mechanical arm (4) is configured to generate radial displacement when the internal pressure of the cavity exceeds a threshold, so as to release the blockage of the valve (3) and form a pressure relief passage. The inner wall of the valve housing (2) is equipped with a support bar (5), and a pin (6) is provided on the left side of the support bar (5). The robotic arm (4) is installed on the surface of the pin (6). A first bolt (7) is provided on the outer side of the support bar (5). The first bolt (7) passes through the support bar (5) and connects to the valve seat (1). A second bolt (8) is provided on the outside of the robotic arm (4), the second bolt (8) passes through the robotic arm (4) and is threadedly connected to the valve (3).
2. The automatic pressure relief device according to claim 1, characterized in that, A first sealing ring (9) is provided on the right side of the valve seat (1), and the first sealing ring (9) is located inside the valve seat (1) and the valve body (2).
3. The automatic pressure relief device according to claim 2, characterized in that, A third bolt (10) is provided on the right side of the valve body (2), and the third bolt (10) passes through the valve body (2) and is threadedly connected to the first sealing ring (9) and the valve seat (1).
4. An automatic pressure relief device according to claim 3, characterized in that, A second sealing ring (11) is inlaid on the left side of the valve seat (1), and a fourth bolt (12) is installed on the left side of the valve seat (1).