Rapid pressure relief safety valve assembly for high-pressure pneumatic conveying system

Abstract

This utility model discloses a rapid pressure relief safety valve assembly for a high-pressure pneumatic conveying system, including a base plate. Four support rods are mounted on the base plate, and connecting pipes are mounted on the four support rods. Connecting flanges are mounted on both ends of the connecting pipes. Two assembly pipes are mounted on the upper wall of the connecting pipes and between the two connecting flanges. Each assembly pipe has an opening / closing box embedded at its upper end. Each opening / closing box contains two hydraulic cylinders. A top frame is mounted on the telescopic end of each hydraulic cylinder. A wedge-shaped rubber sealing layer is mounted on the opposing walls of every two top frames. This utility model relates to the field of rapid pressure relief technology for pneumatic conveying systems. This device achieves dual-port pressure relief and can also perform diameter change operations during the pressure relief process, effectively improving pressure relief efficiency. It can also filter and reduce dust from the pressure-relieved gas during the pressure relief process, protecting the working environment. Furthermore, it can monitor the pressure-relieved gas in real time, ensuring high reliability.

Description

Technical Field

[0001] This utility model relates to the field of rapid pressure relief technology for pneumatic conveying systems, specifically to a rapid pressure relief safety valve assembly for high-pressure pneumatic conveying systems. Background Technology

[0002] High-pressure pneumatic conveying systems are widely used in industrial production to transport various powdery and granular materials. However, during system operation, various reasons (such as pipeline blockage, sudden changes in gas source pressure, etc.) may cause a sharp increase in internal pressure. If the pressure is not released in a timely and effective manner, it will seriously threaten the safety of the system and may even cause major accidents such as explosions.

[0003] While existing safety valves can relieve pressure, they are single-port pressure relief systems with slow pressure relief speeds. During the pressure relief process, powdery materials are discharged along with the valve, and the pressure relief gas is directly discharged, polluting the working environment. Furthermore, the pressure relief airflow cannot be monitored in real time, resulting in poor reliability. Existing technical solutions to address the aforementioned problems may already exist. Therefore, this application aims to provide a replacement or alternative technical solution. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fast pressure relief safety valve assembly for a high-pressure pneumatic conveying system. This solves the technical problems of existing safety valves, which, although capable of pressure relief, only allow pressure relief from a single port, resulting in slow pressure relief speed, the discharge of powdery materials during the pressure relief process, direct discharge of pressure relief gas which pollutes the working environment, and the inability to monitor the pressure relief air flow in real time, leading to poor reliability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid pressure relief safety valve assembly for a high-pressure pneumatic conveying system, comprising a base plate, four support rods mounted on the base plate, connecting pipes mounted on the four support rods, connecting flanges mounted on both ends of the connecting pipes, two assembly pipes mounted on the upper wall of the connecting pipes and located between the two connecting flanges, an opening / closing box embedded at the upper end of each assembly pipe, two hydraulic cylinders mounted in each opening / closing box, a top frame mounted on the telescopic end of each hydraulic cylinder, a wedge-shaped rubber sealing layer mounted on the opposing walls of every two top frames, a guide pipe embedded in the upper wall of each opening / closing box, and a safety pressure relief treatment structure mounted on the base plate and behind the four support rods, with the two guide pipes connected to the safety pressure relief treatment structure.

[0006] Preferably, the safety pressure relief structure includes a water storage tank, four support pillars, a treatment box, a spray pipe frame, several spray heads, a suction pump, a water guide pipe, an impurity filter screen, and a dust filter screen.

[0007] The water storage tank is placed on the base plate and located behind the four support rods. The four pillars are placed on the upper wall of the water storage tank. The treatment box is placed on the four pillars. The spray pipe frame is placed on the upper wall inside the treatment box. Several spray heads are placed on the lower wall of the spray pipe frame. The suction pump is placed inside the water storage tank. The water guide pipe is placed between the suction pump and the spray pipe frame. The impurity filter screen is placed inside the treatment box and near the lower end. An air outlet is machined on one side wall of the treatment box. The dust filter screen is assembled in the air outlet. Two guide pipes are connected to the other side wall of the treatment box.

[0008] Preferably, a gas pressure sensor is mounted on the connecting tube and located between the two assembly tubes.

[0009] Preferably, a reinforcing rod is fitted between the two opening and closing boxes.

[0010] Preferably, a return pipe is installed between the treatment box and the water storage tank, and an electric valve is installed on the return pipe.

[0011] Preferably, a connecting cover is detachably mounted on the side wall of the processing box and on the side of the opening, and an air flow meter is mounted on the air outlet port of the connecting cover.

[0012] Beneficial effects

[0013] This invention provides a rapid pressure relief safety valve assembly for a high-pressure pneumatic conveying system. It offers the following advantages: This device achieves dual-port pressure relief, and can also change its diameter during the pressure relief process, effectively improving pressure relief efficiency. Furthermore, it can filter and reduce dust from the pressure relief gas during the process, protecting the working environment. It also allows for real-time monitoring of the pressure relief gas, ensuring high reliability. This solves the problems of existing safety valves, which, while capable of pressure relief, only offer single-port relief, resulting in slow pressure relief speeds, the discharge of powdery materials during the pressure relief process, direct discharge of pressure relief gas which pollutes the working environment, and the inability to monitor the pressure relief air flow in real time, leading to poor reliability. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the rapid pressure relief safety valve assembly of the high-pressure pneumatic conveying system described in this utility model.

[0015] Figure 2 This is a side view sectional diagram of the rapid pressure relief safety valve assembly of the high-pressure pneumatic conveying system described in this utility model.

[0016] Figure 3 This is a top view cross-sectional structural diagram of the rapid pressure relief safety valve assembly of the high-pressure pneumatic conveying system described in this utility model.

[0017] In the diagram: 1-Base plate; 2-Support rod; 3-Connecting pipe; 4-Connecting flange; 5-Assembly pipe; 6-Opening / closing box; 7-Hydraulic cylinder; 8-Top frame; 9-Wedge-shaped rubber sealing layer; 10-Guide pipe; 11-Water storage tank; 12-Support column; 13-Treatment box; 14-Spray pipe frame; 15-Spray head; 16-Suction pump; 17-Water guide pipe; 18-Impurity filter screen; 19-Dust filter screen; 20-Gas pressure sensor; 21-Reinforcing rod; 22-Return pipe; 23-Electric valve; 24-Connecting cover; 25-Air flow meter. Detailed Implementation

[0018] 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.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0020] 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.

[0021] Example: Refer to Figure 1-3The high-pressure pneumatic conveying system includes a rapid pressure relief safety valve assembly, comprising a base plate 1, four support rods 2 mounted on the base plate 1, connecting pipes 3 mounted on the four support rods 2, connecting flanges 4 mounted on both ends of the connecting pipes 3, two mounting pipes 5 mounted on the upper wall of the connecting pipes 3 and located between the two connecting flanges 4, each mounting pipe 5 having an opening / closing box 6 embedded at its upper end, each opening / closing box 6 having two hydraulic cylinders 7 mounted inside, each hydraulic cylinder 7 having a top bracket 8 mounted on its telescopic end, and each pair of top brackets 8 having opposite walls Each opening and closing box 6 is equipped with a wedge-shaped rubber sealing layer 9, and a guide pipe 10 is embedded in the upper wall of each opening and closing box 6. A safety pressure relief treatment structure is installed on the base plate 1 and behind the four support rods 2. Two guide pipes 10 are connected to the safety pressure relief treatment structure. The safety pressure relief treatment structure includes a water storage tank 11, four support pillars 12, a treatment box 13, a spray pipe frame 14, several spray heads 15, a suction pump 16, a water guide pipe 17, an impurity filter screen 18, and a dust filter screen 19. The water storage tank 11 is placed on the base plate 1. Located behind four support rods 2, four pillars 12 are mounted on the upper wall of the water storage tank 11, the treatment box 13 is mounted on the four pillars 12, the spray pipe frame 14 is mounted on the upper wall inside the treatment box 13, several spray heads 15 are mounted on the lower wall of the spray pipe frame 14, the suction pump 16 is mounted inside the water storage tank 11, the water guide pipe 17 is mounted between the suction pump 16 and the spray pipe frame 14, the impurity filter screen 18 is mounted inside the treatment box 13 and near the lower end, and an air outlet is machined on one side wall of the treatment box 13 to filter dust. A filter screen 19 is installed inside the air outlet, and two guide pipes 10 are connected to the other side wall of the treatment box 13; a gas pressure sensor 20 is installed on the connecting pipe 3 and between the two assembly pipes 5; a reinforcing rod 21 is installed between the two opening and closing boxes 6; a return pipe 22 is installed between the treatment box 13 and the water storage tank 11, and an electric valve 23 is installed on the return pipe 22; a connecting cover 24 is detachably installed on the side wall of the treatment box 13 and on the opening side, and an air flow meter 25 is installed on the air outlet port of the connecting cover 24;

[0022] The specific working principle is as follows:

[0023] After the staff moves the depressurization device to the side of the conveying equipment, it stops. The connecting pipe 3 on the support rod 2 supported by the base plate 1 is connected through the connecting flange 4. After the connection is completed, the external power supply is turned on to power the device. The staff inputs commands through the PLC controller installed on it, and the device operates automatically. When the gas pressure sensor 20 installed on the connecting pipe 3 detects that the pressure in the pipeline is higher than the critical value, it sends a signal. The hydraulic cylinder 7 in the opening and closing box 6 installed on the assembly pipe 5 drives the top frame 8 installed on its telescopic end to retract. Every two top frames 8 are gradually pulled open, and the wedge-shaped rubber sealing layer 9 is higher at one end and lower at the other, forming a variable diameter exhaust channel to facilitate rapid pressure relief and exhaust. The exhaust gas enters the treatment box 13 supported by the pillar 12 on the water storage tank 11 through the guide pipe 10 installed on the opening and closing box 6. At the same time, the suction pump 16 installed in the water storage tank 11 draws water from the source through the water guide pipe. 17 enters the spray pipe frame 14, and water mist is sprayed out through the spray head 15 on the spray pipe frame 14. The sprayed water mist adsorbs and precipitates the powdery particles in the depressurized gas. After passing through the impurity filter screen 18 for layered filtration, the clean gas is filtered again through the dust filter screen 19 on the gas outlet for secondary treatment. Finally, the treated gas is discharged through the air flow meter 25 on the connecting cover 24. The air flow meter 25 monitors the amount of depressurized gas discharged in real time, which is convenient for the staff to monitor. After the depressurization is completed, the hydraulic cylinder 7 pushes the top frame 8 installed on its telescopic end to move relative to each other, so that the wedge-shaped rubber sealing layer 9 is tightly attached to seal. After a set time of stillness, the electric valve 23 installed on the return pipe 22 opens, and the filtered water flows back into the water storage tank 11 for recycling. The staff can take out the impurity filter screen 18 and remove the residual impurities on it. The reinforcing rod 21 is used to enhance the stability of the opening and closing box 6.

[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 group of quick pressure relief safety valves of a high pressure pneumatic conveying system, comprising a base plate (1), characterized in that, Four support rods (2) are mounted on the base plate (1). Connecting pipes (3) are mounted on the four support rods (2). Connecting flanges (4) are mounted on both ends of the connecting pipes (3). Two assembly pipes (5) are mounted on the upper wall of the connecting pipes (3) and between the two connecting flanges (4). An opening and closing box (6) is embedded at the upper end of each assembly pipe (5). Two hydraulic cylinders (7) are mounted in each opening and closing box (6). A top frame (8) is mounted on the telescopic end of each hydraulic cylinder (7). A wedge-shaped rubber sealing layer (9) is mounted on the opposite wall of each pair of top frames (8). A guide pipe (10) is embedded in the upper wall of each opening and closing box (6). A safety pressure relief structure is mounted on the base plate (1) and behind the four support rods (2). The two guide pipes (10) are connected to the safety pressure relief structure.

2. The high pressure pneumatic conveying system's quick pressure relief safety valve group according to claim 1, characterized in that, The safety pressure relief structure includes a water storage tank (11), four support pillars (12), a treatment box (13), a spray pipe frame (14), several spray heads (15), a suction pump (16), a water guide pipe (17), an impurity filter screen (18), and a dust filter screen (19). The water storage tank (11) is placed on the base plate (1) and located behind the four support rods (2). The four pillars (12) are placed on the upper wall of the water storage tank (11). The treatment box (13) is placed on the four pillars (12). The spray pipe frame (14) is placed on the upper wall inside the treatment box (13). Several spray heads (15) are placed on the lower wall of the spray pipe frame (14). The suction pump (16) is placed inside the water storage tank (11). The water guide pipe (17) is placed between the suction pump (16) and the spray pipe frame (14). The impurity filter screen (18) is placed inside the treatment box (13) and near the lower end. An air outlet is machined on one side wall of the treatment box (13). The dust filter screen (19) is assembled inside the air outlet. The two guide pipes (10) are connected to the other side wall of the treatment box (13).

3. The high pressure pneumatic conveying system's quick pressure relief safety valve group according to claim 1, characterized in that, A gas pressure sensor (20) is mounted on the connecting pipe (3) and between the two assembly pipes (5).

4. The high pressure pneumatic conveying system's quick pressure relief safety valve group according to claim 2, characterized in that, A reinforcing rod (21) is fitted between the two opening and closing boxes (6).

5. The rapid pressure relief safety valve assembly of the high-pressure pneumatic conveying system according to claim 2, characterized in that, A return pipe (22) is installed between the treatment box (13) and the water storage tank (11), and an electric valve (23) is installed on the return pipe (22).

6. The rapid pressure relief safety valve assembly of the high-pressure pneumatic conveying system according to claim 2, characterized in that, A connecting cover (24) is detachably mounted on the side wall of the processing box (13) and on the side of the opening. An air flow meter (25) is mounted on the air outlet port of the connecting cover (24).

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