Safety discharge protection device in emergency

Abstract

The invention relates to a safety release protection device in emergency, which is mainly used for pressure release protection in high-temperature and high-pressure environments and is suitable for industries such as waste gas incineration equipment, chemical engineering, machinery, environmental protection and energy. The device comprises an explosion venting door, a pilot-operated type control mechanism and a high-temperature-resistant ceramic fiber heat preservation module and is fixed to an equipment explosion venting opening through a hinge lug. The pilot-operated type control mechanism is composed of a spring, a push rod, a locking arm, a guide sleeve, a guide column and a locking nut, when the internal pressure of equipment exceeds a set value, the push rod pushes the locking arm to be separated from locking, the explosion venting door is automatically opened, and high-temperature and high-pressure gas is rapidly released. After explosion venting is completed, the device does not need to replace the rupture disk, and an operator only needs to manually reset the locking arm, so that the normal working state can be quickly recovered. A locking nut of the device can adjust explosion venting triggering pressure, and the requirements of different working conditions are met. The device has efficient pressure relief and reset functions, is safe and reliable, and can reduce the downtime of equipment and reduce the operation cost of enterprises.

Description

Technical Field

[0001] The invention relates to the technical field of safety pressure relief devices, and in particular to a safety pressure relief protection device in emergency situations. Background Art

[0002] In the industrial production process, waste gas treatment usually adopts the incinerator to achieve harmlessness of organic waste gas and waste heat recovery. However, due to the fluctuation of the concentration, pressure and flow rate of combustible gas in the waste gas, the load in the incinerator is often unstable, and it is difficult to achieve continuous and stable combustion. Especially when the combustible gas is operated by supplementary combustion or heat storage, it is easy to cause flashback and other phenomena, which poses a serious threat to the safety and stability of the system.

[0003] At present, bursting discs are widely used as safety pressure relief devices in the industry. Bursting discs installed in the explosion vents are used to prevent safety accidents in incinerators and other equipment under high temperature and high pressure environments. However, these bursting discs lose their function after an explosion and need to be replaced. During the commissioning process, due to various reasons, the bursting discs often explode accidentally. Because they cannot be reset in time, in order to ensure the safety of the entire process production line and personnel, the owner is forced to stop production for maintenance, causing huge economic losses.

[0004] Therefore, the bursting disc device in the prior art solution has the following defects in daily operation:

[0005] Disposable use: Once triggered, traditional bursting disc devices become ineffective and need to be replaced. The operation cycle is long, which can easily cause the entire production line to shut down, affecting production efficiency.

[0006] High temperature loss: The high temperature environment of over 1000℃ inside the equipment is prone to produce high temperature and high pressure rapidly expanding flue gas if it is not well sealed, causing the bursting disc to fail, increasing the replacement frequency and the burden on the company.

[0007] Unable to reset: Existing pressure relief devices usually require a long period of downtime for maintenance or replacement after being triggered, and cannot be quickly reset, resulting in the system being difficult to resume work in time in the event of an accidental explosion, and then causing the entire production line to stop production due to the inability to reset the equipment in time.

[0008] Based on the above problems, the present invention provides a new type of safety relief protection device, which can quickly release pressure under high temperature and high pressure conditions and has a manual reset function, effectively reducing equipment downtime and reducing economic losses caused by accidents. The device can not only quickly restore normal working conditions after explosion relief, but also adjust pressure according to the pressure requirements of different equipment. It is suitable for multiple industrial fields such as chemical industry, environmental protection, machinery and energy, and has significant advantages in protecting the safety of on-site equipment and personnel. Summary of the invention

[0009] The present invention relates to a safety relief protection device in emergency situations, which aims to solve the problems of one-time use, difficulty in resetting and easy wear in high temperature environments in existing pressure relief devices, and provide reliable safety protection for high temperature and high pressure equipment in industrial production. The device realizes rapid pressure release and simple resetting operation of the equipment in emergency situations by designing an adjustable pilot control mechanism and a manual reset function, thereby ensuring that the production line can quickly resume normal operation after the accident is handled.

[0010] Technical issues

[0011] The main technical problem of the present invention is that most of the existing safety pressure relief devices are disposable bursting disc structures. Once the explosion relief is triggered, the bursting disc needs to be replaced, resulting in a long-term shutdown of the production line. In addition, the service life of traditional bursting discs is short under high temperature and high pressure conditions, and frequent replacement increases the operating costs of enterprises. The existing technology is also difficult to flexibly adjust the explosion relief pressure according to actual working conditions, and the reset operation is complicated, which affects the rapid recovery of the equipment.

[0012] Technical Solution

[0013] In order to solve the above problems, the present invention proposes a safety discharge protection device, which mainly includes the following structures and features:

[0014] Explosion vent door and pilot control mechanism: The explosion vent door is fixed to the explosion vent of the equipment by hinged ears and is equipped with an operating handle. The pilot control mechanism realizes the opening and pressure relief control of the explosion vent door through the setting spring, push rod, locking arm and locking nut. When the pressure of the high-temperature and high-pressure gas exceeds the preset value of the setting spring, the push rod moves along the guide column to drive the locking arm out of the locked state, automatically opening the explosion vent door and releasing the pressure quickly.

[0015] High temperature resistant and heat-insulating design: The explosion relief device adopts high temperature resistant ceramic fiber modules for heat insulation protection, which can adapt to extreme environments up to 1000℃, ensuring the long-term use of the device under high temperature conditions and improving its safety and durability.

[0016] Adjustable pressure control: By adjusting the length of the locking nut compression spring, the operator can flexibly set the trigger pressure of the explosion relief door to meet the needs of different working conditions. The guide sleeve and guide column ensure the smooth movement of the push rod during the triggering process, improving the explosion relief response speed and device stability.

[0017] Manual reset function: After the explosion relief is completed, there is no need to replace the bursting disc. The operator only needs to re-close the explosion relief door and manually reset the locking arm to resume normal working state within a few minutes, which significantly reduces equipment downtime and improves the continuity and economy of the production line.

[0018] Beneficial effects:

[0019] The safety discharge protection device of the present invention has the following significant advantages:

[0020] Improve equipment safety: Rapidly release high-temperature and high-pressure gas in an emergency to protect equipment and personnel safety and effectively prevent accidents from expanding.

[0021] Economical and efficient: There is no need to replace the bursting disc after the explosion relief is completed. The manual reset function reduces equipment downtime and maintenance time, reducing enterprise operating costs.

[0022] Wide applicability: The device is suitable for direct-fired furnace waste gas incineration equipment, as well as high-temperature and high-pressure explosion relief needs in the fields of chemical, machinery, environmental protection, energy, etc.

[0023] Through innovative design, the present invention not only solves the shortcomings of traditional disposable explosion-proof disc devices, but also provides flexible pressure regulation functions and rapid reset capabilities, which significantly improves the operating efficiency and service life of the equipment while ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic cross-sectional structure diagram of the discharge protection device of the present invention;

[0026] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the local structure.

[0027] The markings in the figure are:

[0028] 1. Cylinder; 2. Ceramic fiber insulation module; 3. Hinged ear; 4. Cover plate; 5. Handle; 6. Locking arm; 7. Guide sleeve and guide column; 8. Push rod; 9. Locking nut; 10. Pressure cover; 11. Flange; 12. Spring; 13. Sleeve. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0030] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0031] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0032] The present invention provides a safety release protection device in an emergency situation, which is specially used to protect equipment and personnel safety by rapid pressure release under high temperature and high pressure conditions. The following describes the implementation of the present invention in detail in conjunction with the accompanying drawings and structural components.

[0033] 1. Device structure

[0034] The safety discharge protection device mainly includes:

[0035] Cylinder 1: used to carry the explosion-proof door and control mechanism, fixed on the explosion-proof port of the equipment through the hinge ear 3, and ensure the stability of the device.

[0036] Ceramic fiber insulation module 2: Installed on the inner wall of the cylinder for heat insulation, ensuring the normal operation of the device under high temperature conditions above 1000°C and preventing high temperature from damaging the cylinder and other components.

[0037] Cover plate 4 and handle 5: The cover plate is installed at the explosion vent of the cylinder to seal and protect the explosion vent at ordinary times; the handle is convenient for operators to operate during maintenance and resetting.

[0038] Pilot control mechanism: It is composed of a spring 12, a push rod 8, a locking arm 6, a guide sleeve and a guide column 7 and a locking nut 9, and controls the opening and explosion relief process of the cover.

[0039] Pressure cap 10 and flange 11: used to seal the cylinder to the explosion vent of the equipment to ensure the sealing during normal operation.

[0040] 2. Working Principle

[0041] During the operation of the equipment, if the internal pressure and temperature rise sharply due to failure, misoperation, etc., the control mechanism of the device will automatically start the pressure relief function. The working process is as follows:

[0042] Sealing protection under normal conditions: The cylinder 1 is tightly connected to the explosion vent of the equipment through the flange 11, and the pressure cover 10 further strengthens the sealing effect. The cover plate 4 is in a closed state under the fixation of the locking arm 6 to maintain the sealing of the equipment during normal operation.

[0043] Automatic explosion relief when pressure exceeds the standard: When the pressure of the high-temperature and high-pressure gas inside the equipment exceeds the preset value set by the spring 12, the spring is compressed instantly by the pressure of the push rod 8, and the push rod moves along the direction of the guide sleeve and guide column 7, quickly disengaging the locking arm 6 from the locking position of the cover plate 4.

[0044] Rapid pressure relief: As the locking arm 6 is unlocked, the cover plate 4 automatically opens under the action of high-pressure gas, and the high-temperature and high-pressure gas in the cylinder is quickly released along the preset direction through the explosion vent, preventing the equipment pressure from further rising and ensuring the safety of equipment and personnel.

[0045] Adjustable pressure control: The locking nut 9 of the device can adjust the compression length of the spring 12, allowing the operator to flexibly set the pressure value that triggers the explosion relief, thereby meeting the pressure relief requirements under different working conditions.

[0046] 3. Manual reset

[0047] After the explosion relief is completed, the device has a convenient manual reset function:

[0048] Manual reset of the cover: When the explosion relief pressure is completely released, the operator does not need to replace the bursting disc, but only needs to put the cover 4 back on the explosion relief port and manually restore the locking arm 6 to the locked state.

[0049] Restore to normal working state: The reset process is simple, and the operator can complete the reset of the device in just a few minutes, so that the equipment can quickly resume normal production and avoid economic losses caused by long-term downtime.

[0050] 4. Application scenarios

[0051] The safety discharge protection device of the present invention is not only suitable for incineration equipment such as direct-fired furnaces in waste gas incineration, but also widely applicable to industrial equipment such as chemical, mechanical, environmental protection and energy. These equipment are usually in high temperature and high pressure environments and flammable and explosive places. In case of emergency, the device can quickly release pressure to protect the safety of on-site personnel and equipment, and effectively avoid downtime losses caused by accidents. Through the application of ceramic fiber insulation modules, the device maintains good thermal insulation effect in high temperature environments, prolongs service life, and improves the stability and safety of the device.

[0052] 5. Implementation Effect

[0053] After testing, the device can operate efficiently under high temperature and high pressure conditions inside the equipment, is easy to operate, safe and reliable. Practice has proved that the use of the device of the present invention can significantly reduce the downtime caused by replacing bursting discs after an accident, save maintenance costs for enterprises, and improve the operating efficiency of equipment.

[0054] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A safety release protection device in an emergency situation comprises an explosion relief door, a pilot control mechanism, an operating mechanism and an explosion relief device, characterized in that: The explosion relief device comprises a cylinder (1), the cylinder (1) is fixed to the explosion relief port of the equipment body through a hinge ear (3), a cover plate (4) and a handle (5) are arranged on the cylinder (1) for easy operation, and a ceramic fiber insulation module (2) is arranged inside the device for high-temperature heat insulation; the pilot control mechanism comprises a spring (12), a push rod (8), a locking arm (6), a locking nut (9) and a guide sleeve guide column (7), wherein the spring (12) is arranged in the cylinder (13), when the high-temperature and high-pressure gas inside the equipment exceeds the preset pressure of the spring (12), the push rod (8) moves along the guide sleeve guide column (7), pushes the locking arm (6) out of the locked state, thereby automatically opening the cover plate (4) and releasing the high-temperature and high-pressure gas.

2. The safety release protection device in emergency situations according to claim 1, characterized in that: The ceramic fiber thermal insulation module (2) is used for high temperature resistance and heat insulation, is adaptable to environments above 1000° C., prevents high temperature from damaging device components, and improves the stability and durability of the device.

3. A safety release protection device in emergency situations according to claim 1 or 2, characterized in that: The flange connection and the locking nut (9) are used to adjust the compression length of the spring (12) to achieve adjustment of the trigger value under different pressures and adapt to various working conditions.

4. The safety release protection device in emergency situations according to claim 1, characterized in that: The guide sleeve and guide column (7) are used to guide the push rod (8), thereby ensuring that the push rod (8) moves smoothly during the triggering process, thereby improving the response speed of the explosion relief and the stability of the device.

5. The safety release protection device in emergency situations according to claim 1, characterized in that: After the explosion relief is completed, the device does not need to replace the bursting disc. The operator only needs to close the cover plate (4) again and manually reset the locking arm (6) to restore the normal working state of the device within a few minutes, thereby reducing the equipment downtime caused by the explosion relief.

6. A safety release protection device in an emergency situation according to any one of claim 1, characterized in that: The device further comprises a gland (10) and a flange (11) for sealingly connecting the cylinder (13) to the pilot port of the device and guiding the locking mechanism to ensure the sealing and stability in the non-explosion relief state. At the same time, the working pressure of the spring is adjusted by using the locking nut after disassembling the flange connection.

7. The safety discharge protection device according to any one of claims 1 to 6, characterized in that: The device is suitable for dust removal, waste gas incineration equipment of direct-fired furnaces, and high-temperature and high-pressure explosion relief needs in the chemical, mechanical, environmental protection, and energy fields. It protects the safety of equipment and personnel and prevents the expansion of accidents and economic losses by quickly releasing pressure in a pre-set direction in a high-pressure emergency.

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