An emergency pressure relief device for a counterweight type hazardous waste incineration system

Abstract

The utility model is suitable for dangerous waste treatment equipment technical field especially relates to a counterweight type dangerous waste incineration system emergency pressure relief device, including pressure relief casing, the surface of pressure relief casing is connected with support stand, and the surface of support stand is provided with the shaft sleeve, the inside mounting of shaft sleeve has rotary axle rod, and the outside of rotary axle rod is connected with the overturning block of sleeve. The utility model discloses the cooperation of overturning block and counterweight type sealing plate, realizes the function of automatic opening pressure relief of counterweight by internal pressure when system overpressure, and the structure is simple, and need not external power drive. The cooperation of rotary axle rod and shaft sleeve improves the opening and closing stability, and the setting of rotary sleeve further reduces the friction resistance, and makes the action more sensitive and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of hazardous waste treatment equipment, specifically an emergency pressure relief device for a counterweight-type hazardous waste incineration system. Background Technology

[0002] With the accelerating pace of industrialization, the types and quantities of hazardous waste are continuously increasing, making its safe and efficient disposal a crucial issue for environmental protection and public safety. Incineration, as one of the main methods for reducing, rendering harmless, and recycling hazardous waste, is widely used in various hazardous waste treatment sites due to its ability to thoroughly decompose pollutants at high temperatures. However, in actual incineration processes, pressure fluctuations often occur within the incineration system due to the complexity and variability of the feed materials, uneven calorific value, and vigorous reactions. Especially under abnormal conditions such as flash explosions or deflagrations, instantaneous overpressure can easily occur, threatening equipment safety and personnel lives.

[0003] To address the aforementioned issues, incineration systems are generally equipped with emergency pressure relief devices to rapidly release high-pressure gas when the system pressure exceeds a set threshold, thereby reducing the risk of explosion. Existing technologies often employ pressure relief structures controlled by a solenoid valve and cylinder linkage, relying on an electronic control signal to drive the gas source for opening and closing operations in case of abnormal pressure. However, these devices suffer from complex structures, reliance on external energy sources, response delays, and high maintenance costs. Furthermore, reliable pressure relief operations are difficult to guarantee in the event of power failure or gas source malfunction, posing safety hazards.

[0004] Therefore, there is an urgent need for a pressure relief device that is simple in structure, requires no external energy, and can respond to internal pressure changes and automatically open and close on its own, so as to improve the safety and reliability of hazardous waste incineration systems under high-risk operating conditions. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide an emergency pressure relief device for a counterweight hazardous waste incineration system, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An emergency pressure relief device for a counterweight hazardous waste incineration system includes a pressure relief shell, a support base connected to the surface of the pressure relief shell, a bushing provided on the surface of the support base, a rotating shaft installed inside the bushing, and a flipping block sleeved on the outside of the rotating shaft.

[0008] One end of the flipping block is connected to a counterweight sealing plate, and the surface of the counterweight sealing plate is provided with a grid frame, and the inside of the grid frame is provided with a counterweight block.

[0009] Furthermore, the side of the flipping block is provided with a through hole, and a rotating sleeve is provided inside the through hole, with the rotating shaft passing through the inside of the rotating sleeve.

[0010] Furthermore, the surface of the counterweight sealing plate is provided with a connecting cover.

[0011] Furthermore, the connecting cover and the counterweight sealing plate are connected in a detachable manner by means of threaded connection or snap-fit ​​connection.

[0012] Furthermore, the port of the pressure relief housing furthest from the counterweight sealing plate is provided with a flange connection frame.

[0013] Furthermore, the interior of the pressure relief housing is provided with a fireproof lining, and the counterweight sealing plate is made of fireproof material.

[0014] Furthermore, the pressure relief housing has a sealing groove at the port near the counterweight sealing plate, and the corresponding surface of the counterweight sealing plate has a sealing flange structure that matches the sealing groove.

[0015] This utility model provides an emergency pressure relief device for a counterweight-type hazardous waste incineration system, which has the following beneficial effects:

[0016] This invention utilizes the combination of a flipping block and a counterweight sealing plate to achieve automatic pressure relief by relying on internal pressure to drive the counterweight during system overpressure. The structure is simple and requires no external power. The cooperation between the rotating shaft and the bushing improves opening and closing stability, while the rotating sleeve further reduces frictional resistance, making the operation more sensitive and reliable. This structure effectively improves the response speed and pressure relief efficiency of hazardous waste incineration systems under sudden overpressure conditions, exhibiting good safety and practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an emergency pressure relief device for a counterweight-type hazardous waste incineration system.

[0018] Figure 2 An emergency pressure relief device for a counterweight-type hazardous waste incineration system Figure 1 Enlarged view of point A.

[0019] Figure 3 This is a front structural diagram of an emergency pressure relief device for a counterweight hazardous waste incineration system, showing the pressure relief shell and counterweight sealing plate in a closed state.

[0020] Figure 4 This is a schematic diagram of the back structure of an emergency pressure relief device for a counterweight hazardous waste incineration system, showing the pressure relief shell and counterweight sealing plate in a closed state.

[0021] Figure 5This is a schematic diagram of the structure of an emergency pressure relief device in a counterweight hazardous waste incineration system, showing the tilting block and rotating shaft in a disassembled state.

[0022] Figure 6 This is a schematic diagram of the structure of an emergency pressure relief device in a counterweight hazardous waste incineration system, showing the connecting cover and the counterweight sealing plate in a disassembled state.

[0023] In the diagram: 1. Pressure relief housing; 2. Flange connection frame; 3. Flip block; 4. Connecting cover; 5. Counterweight sealing plate; 6. Sealing groove; 7. Bushing; 8. Rotating shaft; 9. Support stand; 10. Rotating sleeve; 11. Counterweight block; 12. Grid frame. Detailed Implementation

[0024] 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 illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] like Figures 1-5 As shown in the figure, an emergency pressure relief device for a counterweight hazardous waste incineration system provided by this utility model includes a pressure relief shell 1. A support base 9 is connected to the surface of the pressure relief shell 1, and a bushing 7 is provided on the surface of the support base 9. A rotating shaft 8 is installed inside the bushing 7, and a flipping block 3 is sleeved on the outer side of the rotating shaft 8. A through hole is opened on the side of the flipping block 3, and a rotating sleeve 10 is provided inside the through hole. The rotating shaft 8 passes through the interior of the rotating sleeve 10. A counterweight sealing plate 5 is connected to one end of the flipping block 3.

[0027] In one embodiment of this utility model, the pressure relief housing 1 serves as the load-bearing and guiding foundation of the entire pressure relief device, and its structural stability plays a crucial role in the opening and closing sensitivity and reliability of the entire device. A support base 9 is fixedly mounted on the surface of the pressure relief housing 1, and a bushing 7 is stably connected to the support base 9, allowing the rotating shaft 8 to rotate precisely within it. The bushing 7 serves as a limit and guide, ensuring that the rotating shaft 8 can maintain smooth rotation under pressure, preventing axial movement or jamming, and guaranteeing the normal opening and closing of the flipping block 3.

[0028] The two ends of the rotating shaft 8 are stably supported by the support base 9. The flipping block 3, which is sleeved on its surface, serves as the actuator for directly driving the opening and closing of the counterweight sealing plate 5. When the system is overpressurized, it can lift the sealing plate through rotational movement to achieve rapid pressure relief. The side of the flipping block 3 has a through hole, and a rotating sleeve 10 is set inside the through hole. The rotating shaft 8 passes through the rotating sleeve 10. The setting of the rotating sleeve 10 helps to share part of the rotational friction torque, improving the smoothness of the movement and the response efficiency of the flipping block 3.

[0029] The counterweight sealing plate 5 is connected to one end of the flipping block 3. The sealing plate 5 itself has a certain weight, and the counterweight can be configured according to the system operating conditions to achieve a reasonable match between the closing force and the opening response force. When the system is operating normally, the counterweight keeps the sealing plate in the closed state, and the sealing structure at the edge of the pressure relief housing 1 ensures the sealing performance. When the internal pressure of the system rises abnormally and exceeds the opening threshold set by the counterweight, the rotating shaft 8 drives the flipping block 3 to lift up, and the sealing plate 5 flips open, thereby quickly releasing the overpressure gas.

[0030] Through the coordinated operation of the above structures, the pressure relief process can be completed solely through the interaction between internal pressure and counterweight without the need for external energy. The system has a simple structure and a stable and reliable control principle, making it particularly suitable for safety scenarios such as hazardous waste incineration systems that require automatic response under extreme operating conditions. The technical problem solved by this structure is that it avoids the problems of traditional pressure relief structures, such as strong dependence on electrical control and gas sources, high cost, and cumbersome maintenance. While improving system safety, it also takes into account economy and applicability, and has good prospects for widespread application.

[0031] In this embodiment, a flange connection frame 2 is provided at the port of the pressure relief housing 1 away from the counterweight sealing plate 5, for reliably installing the pressure relief housing 1 onto the flue gas duct or equipment casing of the hazardous waste incineration system. This flange connection frame 2 can be sealed and fixedly connected to the interface structure of the incineration system, ensuring the stability and sealing performance of the pressure relief device under long-term high temperature, high pressure, and corrosive gas environments.

[0032] By adopting a flange connection, not only is rapid on-site installation and disassembly facilitated, improving the versatility and maintenance efficiency of the device, but it also effectively avoids thermal expansion deformation problems caused by welding or rigid connections. The flange connection frame 2 can also be used with standard sealing gaskets to further enhance the airtightness and high-temperature resistance of the connection, thereby ensuring the safe operation of the entire pressure relief system under extreme conditions, demonstrating strong engineering adaptability and structural reliability.

[0033] In this embodiment, the interior of the pressure relief housing 1 is provided with a fireproof lining, and the counterweight sealing plate 5 is made of fireproof material. This is used to enhance the fire resistance and structural stability of the pressure relief device in high-temperature environments. During operation, the hazardous waste incineration system generates a large amount of high-temperature flue gas, accompanied by the potential risk of flash explosion or deflagration. If the pressure relief device itself does not have good heat resistance, it is very easy to deform, leak, or fail, leading to secondary hazards.

[0034] By adding a fireproof lining inside the pressure relief shell 1, the direct impact of high-temperature flue gas on the main body of the device can be effectively isolated, the temperature rise rate can be slowed down, and the overall structure's thermal shock resistance can be improved. The counterweight sealing plate 5 is made of fireproof material and can directly withstand the high-temperature and high-pressure medium inside the system during the pressure relief process, ensuring that no burning, cracking or structural instability occurs during the pressure relief process, thereby ensuring the continuity and safety of the pressure relief action.

[0035] This structure not only improves the safety level and service life of the pressure relief device, but also provides a more stable and reliable operating guarantee for the system under unattended and extreme high temperature conditions, and has significant engineering application value.

[0036] In this embodiment, a sealing groove 6 is provided at the port of the pressure relief housing 1 near the counterweight sealing plate 5, and a sealing flange structure adapted to the sealing groove 6 is provided on the corresponding surface of the counterweight sealing plate 5.

[0037] like Figure 6 As shown, in one embodiment of this utility model, a grid frame 12 is provided on the surface of the counterweight sealing plate 5, and a counterweight block 11 is provided inside the grid frame 12. A connecting cover 4 is provided on the surface of the counterweight sealing plate 5.

[0038] In this embodiment, the grid frame 12 is used to define and fix the positions of multiple counterweights 11, and its surface has several groove structures for embedding the counterweights 11, so that the counterweights 11 can be flexibly added or removed according to the operating conditions, thereby adjusting the overall weight of the counterweight sealing plate 5 to adapt to the automatic opening and closing requirements under different pressure environments. This design achieves rapid adjustment of the pressure relief response critical value without changing the main structural dimensions and motion mode, and has good adaptability and operability. It represents a further optimization and expansion of the previous counterweight control principle.

[0039] The connecting cover 4 is installed on the surface of the counterweight sealing plate 5, which not only protects and fixes the grid frame 12 and the counterweight block 11, but also prevents external impurities, smoke, or high-temperature airflow from directly impacting the counterweight components, ensuring that they are not disturbed during opening and closing. In addition, the connecting cover 4 and the counterweight sealing plate 5 are connected by threads or snaps, which can be easily disassembled and assembled when inspecting or adjusting the counterweight block 11, improving maintenance efficiency.

[0040] This embodiment is an extended and optimized scheme based on the original counterweight self-opening and closing structure. By introducing a modular structure and an adjustable weight mechanism, the device enhances its adaptability and control precision under different working conditions while maintaining a simple structure and stable operation, thereby further improving its engineering application flexibility and system safety.

[0041] The counterweight 11 and the grid frame 12 are stably connected by a limiting slot or bolt fastening, which ensures that the counterweight does not loosen or fall off under high temperature and vibration environment, and facilitates disassembly and rearrangement as needed, thereby meeting the rapid adjustment of various pressure relief response requirements.

[0042] In this embodiment, the connecting cover 4 and the counterweight sealing plate 5 are detachably connected via a threaded connection or a snap-fit ​​connection. This effectively improves the maintenance convenience and counterweight adjustment flexibility of the structure during actual use. With this detachable connection method, when it is necessary to replace the counterweight 11 or adjust its quantity and position to adapt to different pressure relief response requirements, only the connecting cover 4 needs to be disassembled to complete the operation, without disassembling the entire device, significantly shortening the maintenance cycle.

[0043] Furthermore, the detachable connection structure facilitates rapid inspection and replacement of dust-accumulated, corroded, or damaged parts inside the casing under high-temperature or harsh operating conditions, reducing maintenance costs and improving system stability. This structural design, while ensuring strength and sealing performance, enhances the engineering adaptability and long-term reliable operation capability of the pressure relief device, demonstrating excellent modularity and practicality.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An emergency pressure relief device for a counterweight-type hazardous waste incineration system, comprising a pressure relief shell (1), characterized in that, The surface of the pressure relief housing (1) is connected to a support stand (9), and the surface of the support stand (9) is provided with a bushing (7). A rotating shaft (8) is installed inside the bushing (7), and a flipping block (3) is sleeved on the outside of the rotating shaft (8). One end of the flipping block (3) is connected to a counterweight sealing plate (5), and a grid frame (12) is provided on the surface of the counterweight sealing plate (5), and a counterweight block (11) is provided inside the grid frame (12).

2. The emergency pressure relief device for a counterweight-type hazardous waste incineration system according to claim 1, characterized in that, The side of the flipping block (3) has a through hole, and a rotating sleeve (10) is provided inside the through hole. The rotating shaft (8) is provided inside the rotating sleeve (10).

3. The emergency pressure relief device for a counterweight-type hazardous waste incineration system according to claim 1, characterized in that, The surface of the counterweight sealing plate (5) is provided with a connecting cover (4).

4. The emergency pressure relief device for a counterweight-type hazardous waste incineration system according to claim 3, characterized in that, The connecting cover (4) and the counterweight sealing plate (5) are connected in a detachable manner by means of threaded connection or snap-fit ​​connection.

5. The emergency pressure relief device for a counterweight-type hazardous waste incineration system according to claim 1, characterized in that, The pressure relief housing (1) is provided with a flange connection frame (2) at the port away from the counterweight sealing plate (5).

6. The emergency pressure relief device for a counterweight-type hazardous waste incineration system according to claim 1, characterized in that, The pressure relief shell (1) is provided with a fireproof lining, and the counterweight sealing plate (5) is made of fireproof material.

7. The emergency pressure relief device for a counterweight-type hazardous waste incineration system according to claim 1, characterized in that, The pressure relief housing (1) has a sealing groove (6) at the port near the counterweight sealing plate (5), and the corresponding surface of the counterweight sealing plate (5) is provided with a sealing flange structure that matches the sealing groove (6).

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