Explosion venting safety valve on micro-positive pressure hot blast stove

Abstract

The utility model provides an explosion venting safety valve on a micro-positive pressure hot blast stove. The explosion venting safety valve on the micro-positive pressure hot blast stove comprises a device main body, the device main body comprises a mistaken starting prevention module, an exhaust module and a pressure relief module, the exhaust module is installed at the top of the device main body, and the pressure relief module comprises a driving part fixedly installed on the inner wall of the device main body; a reciprocating assembly capable of conducting reciprocating motion is installed at the output end of the driving part, a guide block capable of conducting guiding is arranged at the output end of the reciprocating assembly, a guide sliding groove for guiding the guide block is formed in the device body, and a transverse plate used for relieving pressure is installed on the device body. A sealing block used for sealing is installed on the baffle, a fixing plate is installed on the device body, and a bearing is arranged on the fixing plate. The explosion venting safety valve on the micro-positive pressure hot blast stove has the effect of prolonging the service life of the device.

Description

Technical Field

[0001] This utility model relates to the field of safety valve technology, and in particular to a relief safety valve for a micro-positive pressure hot air furnace. Background Technology

[0002] In industries such as metallurgy, chemical industry, and building materials, the micro-positive pressure hot blast stove is a key heat source equipment. Its internal pressure needs to be maintained in the micro-positive pressure range of 500-5000Pa to ensure combustion efficiency. As the core safety component of the hot blast stove, the reliability of the explosion relief safety valve is directly related to the safety of the equipment and personnel.

[0003] Traditional devices mostly use structures such as springs and sealing plates. Although this structure is simple and easy to operate, it is also prone to jamming. Once jamming occurs, the high-pressure gas inside cannot be discharged, which will lead to excessive internal pressure. Short-term high pressure will greatly increase the load on the internal structure of the device, and over time it may even cause the device to explode, thus greatly reducing the service life of the device.

[0004] Therefore, it is necessary to provide a deflation safety valve for a micro-positive pressure hot blast furnace to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a safety valve for explosion relief on a micro-positive pressure hot air furnace, which solves the problem that the safety valve cannot be opened normally when the structure of the traditional device is jammed.

[0006] To solve the above-mentioned technical problems, this utility model provides a pressure relief safety valve for a micro-positive pressure hot air furnace, comprising: a device body, the device body including an anti-misoperation module, an exhaust module, and a pressure relief module; the exhaust module is installed on the top of the device body; the pressure relief module includes a driving component fixedly installed on the inner wall of the device body; a reciprocating component is installed on the output end of the driving component; a guide block is provided on the output end of the reciprocating component; a guide groove is provided on the device body to guide the guide block; a horizontal plate for pressure relief is installed on the device body; a vertical slide rod is installed on the lower surface of the horizontal plate; a first elastic element is arranged around the vertical slide rod; a baffle that can slide along the vertical slide rod is provided on the vertical slide rod; a sealing block for sealing is installed on the baffle; a fixing plate is installed on the device body; a bearing is provided on the fixing plate; a protrusion for auxiliary pressure relief is installed on the baffle; and a pressure detector for real-time pressure detection is installed on the inner wall of the device body.

[0007] Preferably, the anti-accidental activation module includes a buffer slide rod fixedly installed on the main body of the device, a second elastic element is arranged around the buffer slide rod, a sealing gasket for sealing is provided at the top of the buffer slide rod, and an annular slider that can slide along the buffer slide rod is provided on the buffer slide rod.

[0008] Preferably, the exhaust module includes an exhaust pipe fixedly installed on the main body of the device, a fixing rod for fixing is installed on the inner wall of the exhaust pipe, and a connecting rod for connection is provided on the fixing rod.

[0009] Preferably, the bottom of the connecting rod is provided with a flow guide block for guiding the flow, the top of the connecting rod is installed with a waterproof cover plate for waterproofing, and a dust filter screen for dust prevention is provided between the exhaust pipe and the waterproof cover plate.

[0010] Preferably, the bottom of the device body is provided with a mounting base plate for installation, and the mounting base plate is provided with fasteners for fixing the device body.

[0011] Preferably, the baffle is slidably connected to the vertical slide rod, the sealing block is slidably connected to the fixed plate, and the guide block is slidably connected to the guide groove.

[0012] Preferably, the annular slider is slidably connected to the buffer slide rod.

[0013] Compared with related technologies, the explosion relief safety valve for a micro-positive pressure hot blast stove provided by this utility model has the following beneficial effects:

[0014] This utility model provides a pressure relief safety valve for a micro-positive pressure hot air furnace. When using this device, the pressure detector first detects the internal pressure of the device. When the internal pressure reaches a predetermined level, if the pressure inside the device has not decreased due to jamming of the device baffle or sealing block, the drive component will be activated. The drive component will then drive the reciprocating assembly to run, which in turn will drive the sealing block to move upward. At this time, the high-pressure gas will be discharged through the through hole. This device adds an auxiliary opening function. Traditional devices mostly use structures such as springs and baffles. In the event of jamming of the pressure relief component, the safety valve can be forcibly opened using the components set on this device, thereby releasing the high-pressure gas inside the device in a timely manner, reducing the damage of high pressure to the internal structure of the device, and thus extending the service life of the device. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a pressure relief safety valve for a micro-positive pressure hot air furnace provided by this utility model;

[0016] Figure 2 for Figure 1The diagram shows a cross-sectional view of the main body of the device.

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0018] Figure 4 for Figure 2 The enlarged schematic diagram of part B is shown.

[0019] The diagram is labeled as follows: 1. Main body of the device; 2. Pressure relief module; 201. Driving component; 202. Horizontal plate; 203. First elastic element; 204. Vertical slide bar; 205. Baffle; 206. Sealing block; 207. Guide groove; 208. Guide block; 209. Reciprocating assembly; 210. Bearing; 211. Protrusion; 212. Pressure detector; 213. Fixing plate; 3. Anti-accidental activation module; 301. Sealing gasket; 302. Buffer slide bar; 303. Second elastic element; 304. Annular slider; 4. Mounting base plate; 5. Exhaust module; 501. Dust filter; 502. Waterproof cover; 503. Connecting rod; 504. Guide block; 505. Fixing rod; 506. Exhaust pipe; 6. Fastener. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure, among which, Figure 1 A schematic diagram of a preferred embodiment of a pressure relief safety valve for a micro-positive pressure hot air furnace provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the main body of the device. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 2The enlarged schematic diagram of part B is shown. A pressure relief safety valve for a micro-positive pressure hot air furnace includes: a device body 1, which includes an anti-misoperation module 3, an exhaust module 5, and a pressure relief module 2. The exhaust module 5 is installed on the top of the device body 1. The pressure relief module 2 includes a drive component 201 fixedly installed on the inner wall of the device body 1. A reciprocating assembly 209 capable of reciprocating motion is installed on the output end of the drive component 201. A guide block 208 for guiding is provided on the output end of the reciprocating assembly 209. A guide groove 207 for guiding the guide block 208 is provided on the device body 1. The device body 1 is equipped with... A horizontal plate 202 for pressure relief is provided. A vertical slide bar 204 is mounted on the lower surface of the horizontal plate 202. A first elastic element 203 is arranged around the vertical slide bar 204. A baffle 205 that can slide along the vertical slide bar 204 is provided on the vertical slide bar 204. A sealing block 206 for sealing is installed on the baffle 205. A fixing plate 213 is mounted on the main body 1 of the device. A bearing 210 is provided on the fixing plate 213. A protrusion 211 for assisting pressure relief is installed on the baffle 205. A pressure detector 212 for real-time pressure detection is installed on the inner wall of the main body 1 of the device.

[0022] The driving component 201 can be a motor, hydraulic motor, pneumatic motor or other driving device that can drive the reciprocating component 209 to run. The first elastic component 203 can be a spring, elastic sponge or other elastic component with elastic effect, which can effectively assist the sealing block 206 in resetting.

[0023] The anti-accidental activation module 3 includes a buffer slide rod 302 fixedly installed on the main body 1. A second elastic element 303 is arranged around the buffer slide rod 302. A sealing gasket 301 for sealing is provided at the top of the buffer slide rod 302. An annular slider 304 that can slide along the buffer slide rod 302 is provided on the buffer slide rod 302.

[0024] The aforementioned second elastic element 303 can be an elastic component with elasticity, such as a spring or elastic sponge, which can effectively play a buffering role, thereby effectively reducing the accidental opening caused by vibration due to airflow inside the hot blast furnace.

[0025] The exhaust module 5 includes an exhaust pipe 506 fixedly installed on the main body 1 of the device. A fixing rod 505 for fixing is installed on the inner wall of the exhaust pipe 506. A connecting rod 503 for connection is provided on the fixing rod 505. The exhaust pipe 506 can discharge the high-pressure gas inside the device, thereby ensuring the stability of the gas pressure inside the device.

[0026] The bottom of the connecting rod 503 is provided with a flow guide block 504 for guiding the flow, and the top of the connecting rod 503 is installed with a waterproof cover plate 502 for waterproofing. A dustproof filter screen 501 for dust prevention is provided between the exhaust pipe 506 and the waterproof cover plate 502.

[0027] The aforementioned waterproof cover 502 can effectively prevent external water from entering the device through the exhaust pipe 506, and the dust filter 501 can also effectively prevent external dust from entering the device.

[0028] The bottom of the device body 1 is provided with a mounting base plate 4 for installation, and fasteners 6 for fixing the device body 1 are provided on the mounting base plate 4.

[0029] Fastener 6 can be a screw, nut, clip, or other component that can fix the device.

[0030] The baffle 205 is slidably connected to the vertical slide bar 204, the sealing block 206 is slidably connected to the fixing plate 213, the guide block 208 is slidably connected to the guide groove 207, and the sealing block 206 has the function of sealing when there is no pressure relief.

[0031] The annular slider 304 is slidably connected to the buffer slider 302, and the annular slider 304 has the function of guiding the device during buffering.

[0032] The working principle of the explosion relief safety valve on the micro-positive pressure hot blast furnace provided by this utility model is as follows:

[0033] When this device is used, the pressure detector 212 will first detect the internal pressure of the device. When the internal pressure reaches the predetermined pressure, if the internal pressure has not decreased due to the jamming of the device baffle 205 or the sealing block 206, the drive component 201 will be activated. The drive component 201 will drive the reciprocating assembly 209 to run. The reciprocating assembly 209 will drive the protrusion 211 to move upward. The protrusion 211 will drive the baffle 205 to slide upward along the vertical slide bar 204. The baffle 205 will drive the sealing block 206 to move upward. At this time, the high-pressure gas will be discharged through the through hole and finally discharged through the exhaust pipe 506 to ensure that the internal pressure of the device is normal.

[0034] Compared with related technologies, the explosion relief safety valve for a micro-positive pressure hot blast stove provided by this utility model has the following beneficial effects:

[0035] When using this device, the pressure detector 212 first detects the internal pressure of the device. When the internal pressure reaches the predetermined level, if the pressure inside the device has not decreased due to the jamming of the device baffle 205 or the sealing block 206, the drive component 201 will be activated. At this time, the drive component 201 will drive the reciprocating assembly 209 to run. The reciprocating assembly 209 will drive the sealing block 206 to move upward. At this time, the high-pressure gas will be discharged through the through hole. This device adds an auxiliary opening function. Traditional devices mostly use structures such as springs and baffles. In the event that the pressure relief component is jammed, the components set on this device can be used to forcibly open the safety valve, thereby releasing the high-pressure gas inside the device in a timely manner, reducing the damage of high pressure to the internal structure of the device, and thus extending the service life of the device.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A safety valve for venting explosions on a micro-positive pressure hot blast stove, characterized in that, include: The device body includes an anti-misoperation module, an exhaust module, and a pressure relief module. The exhaust module is installed on the top of the device body. The pressure relief module includes a drive component fixedly installed on the inner wall of the device body. A reciprocating assembly capable of reciprocating motion is installed on the output end of the drive component. A guide block for guiding is provided on the output end of the reciprocating assembly. A guide groove for guiding the guide block is provided on the device body. A horizontal plate for pressure relief is installed on the device body. A vertical slide rod is installed on the lower surface of the horizontal plate. A first elastic element is arranged around the vertical slide rod. A baffle that can slide along the vertical slide rod is provided on the vertical slide rod. A sealing block for sealing is installed on the baffle. A fixing plate is installed on the device body. A bearing is provided on the fixing plate. A protrusion for auxiliary pressure relief is installed on the baffle. A pressure detector for real-time pressure detection is installed on the inner wall of the device body.

2. The explosion relief safety valve for a micro-positive pressure hot blast stove according to claim 1, characterized in that, The anti-accidental activation module includes a buffer slide rod fixedly installed on the main body of the device. A second elastic element is arranged around the buffer slide rod. A sealing gasket for sealing is provided at the top of the buffer slide rod. An annular slider that can slide along the buffer slide rod is provided on the buffer slide rod.

3. The explosion relief safety valve for a micro-positive pressure hot blast stove according to claim 1, characterized in that, The exhaust module includes an exhaust pipe fixedly installed on the main body of the device. A fixing rod for fixing is installed on the inner wall of the exhaust pipe, and a connecting rod for connection is provided on the fixing rod.

4. The explosion relief safety valve for a micro-positive pressure hot blast stove according to claim 3, characterized in that, The bottom of the connecting rod is provided with a flow guide block for guiding the flow, the top of the connecting rod is installed with a waterproof cover plate for waterproofing, and a dust filter screen for dust prevention is provided between the exhaust pipe and the waterproof cover plate.

5. The explosion relief safety valve for a micro-positive pressure hot blast stove according to claim 1, characterized in that, The bottom of the main body of the device is provided with a mounting base plate for installation, and fasteners for fixing the main body of the device are provided on the mounting base plate.

6. The explosion relief safety valve for a micro-positive pressure hot blast stove according to claim 1, characterized in that, The baffle is slidably connected to the vertical slide rod, the sealing block is slidably connected to the fixed plate, and the guide block is slidably connected to the guide groove.

7. The explosion relief safety valve for a micro-positive pressure hot blast stove according to claim 2, characterized in that, The annular slider is slidably connected to the buffer slide rod.

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