High-temperature-resistant emergency drain valve

Abstract

The utility model belongs to the field of emergency drain valves, and particularly relates to a high-temperature-resistant emergency drain valve which comprises a valve pipe, a fixing ring is fixedly connected to the upper portion of the outer side of the valve pipe, a sealing mechanism is arranged on the valve pipe, a frame is fixedly connected to the upper end of the fixing ring, and two symmetrically-distributed guide rods are slidably connected to the interior of the frame. And the lower end of the guide rod is fixedly connected with a connecting plate, the lower end of the connecting plate is fixedly connected with a valve cover, and the outer side of the valve cover is fixedly connected with two guide frames which are symmetrically distributed. The frame, the spring, the screw rod and other structures are additionally arranged on the valve pipe, the adjusting plate can be driven to move through threaded fit between the screw rod and the inner threaded pipe in the using process, the adjusting plate can drive the supporting column to be separated from the valve cover in the moving process, meanwhile, the moving pressure of the valve cover is adjusted through the elastic force of the spring, and the valve cover is not prone to falling off. Therefore, the pressure can be controlled during pressure relief, and excessive pressure release is avoided.

Description

Technical Field

[0001] This utility model relates to the field of emergency discharge valve technology, specifically a high-temperature resistant emergency discharge valve. Background Technology

[0002] Currently, advanced oxidation technology is commonly used for the pretreatment and deep oxidation of high-concentration wastewater. It is characterized by generating free radicals (mostly hydroxyl radicals ·OH) with strong oxidizing capabilities. Under reaction conditions such as high temperature and pressure, electricity, sound, light irradiation, and catalysts, it oxidizes large, difficult-to-degrade organic molecules into low-toxicity or non-toxic small molecules. During the high-temperature and high-pressure treatment process, an emergency discharge valve is required to ensure the safety of the reaction chamber. According to patent authorization announcement number CN209540149U, a high-temperature resistant emergency discharge valve is proposed. This utility model relates to a high-temperature resistant emergency discharge valve, including a valve body, valve cover, connecting rod, rotating shaft, and cylinder. The valve cover is located above the valve body. The connecting rod is T-shaped, with its front end fixed to the valve cover and its lower end connected to the rotating shaft. The rotating shaft's bearing seat is fixed to the upper outer side of the valve body. The characteristic feature is that the rear end of the connecting rod is connected to the cylinder via a connecting shaft. The cylinder is fixed to a cylinder seat and is signal-connected to a PLC control cabinet.

[0003] However, in existing technologies, when an emergency release is needed during use, the valve cover is fully opened. This method of release can easily lead to excessive pressure release and cannot be effectively controlled. Therefore, improvements to the existing technology are needed. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant emergency discharge valve, which solves the problem of inconvenient control of pressure release.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant emergency discharge valve, comprising a valve pipe, a fixing ring fixedly connected to the upper outer side of the valve pipe, a sealing mechanism provided on the valve pipe, a frame fixedly connected to the upper end of the fixing ring, two symmetrically distributed guide rods slidably connected inside the frame, a connecting plate fixedly connected to the lower end of the guide rods, a valve cover fixedly connected to the lower end of the connecting plate, two symmetrically distributed guide frames fixedly connected to the outer side of the valve cover, an adjusting plate slidably connected to the outer side of the guide rods, an internally threaded tube fixedly connected inside the adjusting plate, a spring provided on the outer side of the guide rods, a screw installed inside the frame via a bearing, two symmetrically distributed support columns fixedly connected to the lower end of the adjusting plate, and a motor fixedly installed at the upper end of the frame.

[0006] Preferably, the sealing mechanism includes a sealing ring, a sealing ring is fixedly connected to the upper end of the valve tube, and a beveled ring is fixedly connected to the upper part of the inner wall of the valve tube and located at the lower end of the sealing ring. The sealing ring is in contact with the beveled ring, the sealing ring is slidably connected to the valve cover, and the beveled ring is slidably connected to the valve cover. The sealing ring is made of refractory material, and the beveled ring is made of the same material as the valve tube.

[0007] Preferably, a guide bar is fixedly connected to the side of the frame near the valve cover, and the guide bar is slidably connected to the guide frame. The guide bar can guide the movement of the valve cover through the guide frame.

[0008] Preferably, the guide frame is slidably connected to the frame, and the output shaft of the motor is fixedly connected to the screw, so that the motor can drive the screw to rotate.

[0009] Preferably, one end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the adjusting plate. The spring can control the movement force of the valve cover through its elasticity.

[0010] Preferably, the support column contacts the valve cover, and the screw is threadedly connected to the internally threaded tube. The screw can drive the adjusting plate to move through the threaded engagement with the internally threaded tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a frame, spring and screw to the valve pipe. During use, the screw and the internal threaded pipe can drive the adjustment plate to move. During the movement of the adjustment plate, the support column can be driven to disengage from the valve cover. At the same time, the spring force can adjust the pressure of the valve cover movement, so as to control the pressure when depressurizing and avoid excessive pressure release.

[0013] 2. This utility model, by adding a sealing ring and a beveled ring to the valve tube, can increase the contact area with the valve cover through the beveled surface of the beveled ring, and at the same time, perform a secondary seal between the valve cover and the valve tube through the sealing ring, thereby effectively improving the sealing performance of the valve body and avoiding the impact of high temperature on the sealing performance. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 A three-dimensional sectional view;

[0016] Figure 3 For the present utility model Figure 1 A 3D view of the valve cover;

[0017] Figure 4 For the present utility model Figure 1 A magnified 3D view of the adjustment plate.

[0018] In the diagram: 1. Valve pipe; 2. Fixing ring; 3. Sealing mechanism; 4. Frame; 5. Guide rod; 6. Connecting plate; 7. Valve cover; 8. Guide frame; 9. Guide strip; 10. Adjusting plate; 11. Spring; 12. Internal threaded pipe; 13. Support column; 14. Screw; 15. Motor; 31. Sealing ring; 32. Inclined ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A high-temperature resistant emergency discharge valve includes a valve pipe 1, a fixing ring 2 fixedly connected to the upper outer side of the valve pipe 1, a sealing mechanism 3 provided on the valve pipe 1, a frame 4 fixedly connected to the upper end of the fixing ring 2, two symmetrically distributed guide rods 5 slidably connected inside the frame 4, a connecting plate 6 fixedly connected to the lower end of the guide rods 5, a valve cover 7 fixedly connected to the lower end of the connecting plate 6, two symmetrically distributed guide frames 8 fixedly connected to the outer side of the valve cover 7, an adjusting plate 10 slidably connected to the outer side of the guide rods 5, an internally threaded tube 12 fixedly connected inside the adjusting plate 10, a spring 11 provided on the outer side of the guide rods 5, a screw 14 installed inside the frame 4 via bearings, two symmetrically distributed support columns 13 fixedly connected to the lower end of the adjusting plate 10, and a motor 15 fixedly installed at the upper end of the frame 4.

[0021] Please see Figure 2 The sealing mechanism 3 includes a sealing ring 31. The sealing ring 31 is fixedly connected to the upper end of the valve tube 1. An inclined ring 32 is fixedly connected to the upper part of the inner wall of the valve tube 1 and located at the lower end of the sealing ring 31. The sealing ring 31 is in contact with the inclined ring 32. The sealing ring 31 is slidably connected to the valve cover 7. The inclined ring 32 is slidably connected to the valve cover 7. The sealing ring 31 is made of refractory material. The inclined ring 32 is made of the same material as the valve tube 1.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4A guide bar 9 is fixedly connected to the side of the frame 4 near the valve cover 7. The guide bar 9 is slidably connected to the guide frame 8. The guide bar 9 can guide the movement of the valve cover 7 through the guide frame 8. The guide frame 8 is slidably connected to the frame 4. The output shaft of the motor 15 is fixedly connected to the screw 14. The motor 15 can drive the screw 14 to rotate. One end of the spring 11 is fixedly connected to the connecting plate 6. The other end of the spring 11 is fixedly connected to the adjusting plate 10. The spring 11 can control the movement force of the valve cover 7 through its elasticity. The support column 13 is in contact with the valve cover 7. The screw 14 is threadedly connected to the internal threaded tube 12. The screw 14 can drive the adjusting plate 10 to move through the threaded engagement with the internal threaded tube 12.

[0023] The specific implementation process of this utility model is as follows: When pressure relief is required, the motor 15 is started, and the motor 15 drives the screw 14 to rotate. During the rotation of the screw 14, the adjusting plate 10 can be moved upward through the threaded engagement with the internal threaded pipe 12. During the movement of the adjusting plate 10, the support column 13 can be disengaged from the valve cover 7. After the support column 13 is disengaged from the valve cover 7, the valve cover 7 is pushed by the pressure from inside the valve pipe 1. When the pressure on the valve cover 7 is greater than the elastic force of the spring 11, the valve cover 7 is pushed and compresses the spring 11. When the valve cover 7 is disengaged from the sealing ring 31, pressure relief can be achieved. When the pressure on the valve cover 7 is less than the elastic force of the spring 11, the spring 11 returns to its original position. The spring 11 can drive the valve cover 7 to return to its original position through its elastic force. The valve cover 7 can seal the valve pipe 1, thereby controlling the pressure relief and preventing excessive pressure leakage.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant emergency discharge valve, comprising a valve pipe (1), characterized in that: A fixing ring (2) is fixedly connected to the upper outer side of the valve tube (1). A sealing mechanism (3) is provided on the valve tube (1). A frame (4) is fixedly connected to the upper end of the fixing ring (2). Two symmetrically distributed guide rods (5) are slidably connected inside the frame (4). A connecting plate (6) is fixedly connected to the lower end of the guide rod (5). A valve cover (7) is fixedly connected to the lower end of the connecting plate (6). Two symmetrically distributed guide frames (8) are fixedly connected to the outer side of the valve cover (7). An adjusting plate (10) is slidably connected to the outer side of the guide rod (5). An internally threaded tube (12) is fixedly connected inside the adjusting plate (10). A spring (11) is provided on the outer side of the guide rod (5). A screw (14) is installed inside the frame (4) through a bearing. Two symmetrically distributed support columns (13) are fixedly connected to the lower end of the adjusting plate (10). A motor (15) is fixedly installed at the upper end of the frame (4).

2. The high-temperature resistant emergency discharge valve according to claim 1, characterized in that: The sealing mechanism (3) includes a sealing ring (31). The sealing ring (31) is fixedly connected to the upper end of the valve tube (1). An inclined ring (32) is fixedly connected to the upper part of the inner wall of the valve tube (1) and to the lower end of the sealing ring (31). The sealing ring (31) contacts the inclined ring (32). The sealing ring (31) is slidably connected to the valve cover (7). The inclined ring (32) is slidably connected to the valve cover (7).

3. The high-temperature resistant emergency discharge valve according to claim 1, characterized in that: A guide strip (9) is fixedly connected to the side of the frame (4) near the valve cover (7), and the guide strip (9) is slidably connected to the guide frame (8).

4. The high-temperature resistant emergency discharge valve according to claim 1, characterized in that: The guide frame (8) is slidably connected to the frame (4), and the output shaft of the motor (15) is fixedly connected to the screw (14).

5. A high-temperature resistant emergency discharge valve according to claim 1, characterized in that: One end of the spring (11) is fixedly connected to the connecting plate (6), and the other end of the spring (11) is fixedly connected to the adjusting plate (10).

6. A high-temperature resistant emergency discharge valve according to claim 1, characterized in that: The support column (13) contacts the valve cover (7), and the screw (14) is connected to the internal threaded tube (12) by a thread.

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