Steam preheating box with emergency exhaust function

Abstract

The utility model discloses a kind of steam preheating boxes with emergency exhaust function, it is related to steam preheating box technical field, including steam preheating box, the front end of steam preheating box is provided with sealing door, the top of sealing door is provided with fixed mounting in steam preheating box control panel, the lower end of steam preheating box four corner is all installed with universal wheel, the utility model is provided with a kind of steam preheating box with emergency exhaust function, when the pressure in box is abnormally increased, steam is acted on piston in pressure pipe by pressure through-hole, sliding top rod trigger control switch is pushed, synchronous starting drive motor drives screw rod to rotate, make sealing plug move along guide rod to relieve the sealing of pressure relief pipe, steam is rapidly discharged through exhaust pipe, this mechanical response and electric drive combined design avoids the pressure accumulation problem caused by manual operation lag, fundamentally reduces the occurrence risk of equipment failure and security risk.

Description

Technical Field

[0001] This utility model relates to the field of steam preheating boxes, and in particular to a steam preheating box with an emergency exhaust function. Background Technology

[0002] Steam preheating chambers are commonly used heating equipment in industrial production. Their working principle involves injecting high-temperature steam into the chamber through steam nozzles, rapidly preheating the materials to be processed in a sealed environment to meet the temperature requirements of subsequent production processes. During actual operation, the steam preheating chamber needs to maintain a certain level of airtightness to ensure preheating efficiency, and the steam pressure inside the chamber will gradually change as steam is continuously injected. Existing steam preheating boxes mostly rely on manual operation of mechanical valves for pressure control. When the pressure inside the box rises abnormally, they cannot achieve an automated emergency venting response, which can easily lead to equipment failure or even safety hazards due to pressure accumulation. Secondly, some equipment with automatic venting functions has low pressure sensing sensitivity, and the start and stop response of the venting mechanism is delayed, making it difficult to accurately control the timing and volume of venting. This may result in excessive pressure due to untimely venting or energy waste due to excessive venting, affecting the stability of the preheating effect. To solve the above problems, we propose a steam preheating box with an emergency venting function. Utility Model Content

[0003] The main objective of this invention is to provide a steam preheating box with an emergency exhaust function, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A steam preheating box with emergency venting function includes a steam preheating box, a sealing door at the front end of the steam preheating box, a control panel fixedly installed on the steam preheating box above the sealing door, casters installed at the four corners of the lower end of the steam preheating box, a mounting box fixedly connected to one side of the steam preheating box, an exhaust pipe fixedly connected to the upper end of the mounting box, a pressure relief assembly installed inside the mounting box, and a steam nozzle fixedly connected to the lower end of the inner wall of the steam preheating box.

[0005] Preferably, the pressure relief assembly includes a pressure pipe, which is fixedly connected to the steam preheating box. A pressure through hole is provided on the outer side of the steam preheating box, and the pressure pipe is connected to the inner cavity of the steam preheating box through the pressure through hole. A sliding top rod is slidably connected to the inner side of the pressure pipe, and a control switch is installed on the inner wall of the mounting box. The control switch is located on one side of the sliding top rod.

[0006] Preferably, a piston is slidably connected to the inner side of the pressure tube, the piston is fixedly connected to one end of the sliding push rod, and a strong spring is sleeved on the outer side of the sliding push rod, with the two ends of the strong spring being fixedly connected to the piston and the pressure tube, respectively.

[0007] Preferably, the pressure relief assembly includes a drive motor located on the outside of the mounting box. The output end of the drive motor is fixedly connected to a lead screw, and the other end of the lead screw is rotatably connected to a fixed circular plate. One end of the fixed circular plate has multiple exhaust holes, and a pressure relief pipe is fixedly connected to the outside of the fixed circular plate. The pressure relief pipe is fixedly connected to the outside of the steam preheating box.

[0008] Preferably, a pressure relief hole is provided on the outer side of the steam preheating box, and the pressure relief pipe is connected to the inner cavity of the steam preheating box through the pressure relief hole.

[0009] Preferably, a sealing plug is threaded to the outer side of the lead screw, the sealing plug is clamped inside the pressure relief pipe, two guide blocks are fixedly connected to the outer side of the sealing plug, and guide rods are slidably connected to the inner sides of the two guide blocks. The two ends of the guide rods are fixedly connected to the mounting box and the steam preheating box, respectively.

[0010] Preferably, a mounting block is fixedly connected to the lower end of the drive motor, and the drive motor is fixedly connected to the outside of the mounting box through the mounting block.

[0011] Preferably, multiple placement plates are fixedly installed on the inner wall of the steam preheating box.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This steam preheating box with emergency exhaust function, when the pressure inside the box rises abnormally, steam acts on the piston in the pressure pipe through the pressure through the pressure port, pushing the sliding top rod to trigger the control switch, and simultaneously starting the drive motor to drive the lead screw to rotate, causing the sealing plug to move along the guide rod to release the seal on the pressure relief pipe, and the steam is quickly discharged through the exhaust pipe. This design, which combines mechanical induction and electric drive, avoids the problem of pressure accumulation caused by the lag of manual operation, and fundamentally reduces the risk of equipment failure and safety hazards. 2. This steam preheating box with emergency exhaust function can flexibly adjust the sensing sensitivity according to the preset pressure threshold through the strong spring in the pressure pipe, so as to ensure that the exhaust mechanism is triggered in time before the pressure reaches the dangerous value. The tight cooperation between the sealing plug and the pressure relief pipe and the guiding effect of the guide block and guide rod make the start and stop actions of the exhaust mechanism precise and controllable, which can avoid the problem of untimely exhaust and prevent energy waste caused by excessive exhaust. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the overall structure of a steam preheating box with emergency exhaust function according to the present invention. Figure 2 This is a cross-sectional view of the overall structure of a steam preheating box with emergency exhaust function according to this utility model. Figure 3 This is a partial structural cross-section of a steam preheating box with emergency exhaust function according to the present invention. Figure 1 ; Figure 4 This is a partial structural cross-section of a steam preheating box with emergency exhaust function according to the present invention. Figure 2 ; Figure 5 This is an enlarged structural diagram of point A of a steam preheating box with emergency exhaust function according to this utility model.

[0014] In the diagram: 1. Steam preheating box; 2. Sealed door; 3. Control panel; 4. Casters; 5. Mounting box; 6. Exhaust pipe; 7. Pressure through hole; 8. Pressure pipe; 9. Sliding top rod; 10. Strong spring; 11. Piston; 12. Control switch; 13. Drive motor; 14. Lead screw; 15. Fixed circular plate; 16. Exhaust through hole; 17. Pressure relief pipe; 18. Sealing plug; 19. Guide block; 20. Guide rod; 21. Steam nozzle; 22. Placement plate; 23. Pressure relief through hole. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1-5 As shown, a steam preheating box with emergency exhaust function includes a steam preheating box 1. A sealing door 2 is provided at the front end of the steam preheating box 1. A control panel 3 is fixedly installed on the steam preheating box 1 above the sealing door 2. Universal wheels 4 are installed at the four corners of the lower end of the steam preheating box 1. An installation box 5 is fixedly connected to one side of the steam preheating box 1. An exhaust pipe 6 is fixedly connected to the upper end of the installation box 5. A pressure relief component is provided in the inner cavity of the installation box 5. A steam nozzle 21 is fixedly connected to the lower end of the inner wall of the steam preheating box 1.

[0017] In this embodiment, the pressure relief assembly includes a pressure pipe 8, which is fixedly connected to the steam preheating box 1. A pressure through hole 7 is provided on the outer side of the steam preheating box 1. The pressure pipe 8 is connected to the inner cavity of the steam preheating box 1 through the pressure through hole 7. A sliding top rod 9 is slidably connected to the inner side of the pressure pipe 8. A control switch 12 is installed on the inner wall of the mounting box 5. The control switch 12 is located on one side of the sliding top rod 9. A piston 11 is slidably connected to the inner side of the pressure pipe 8. The piston 11 is fixedly connected to one end of the sliding top rod 9. A strong spring 10 is sleeved on the outer side of the sliding top rod 9. The two ends of the strong spring 10 are fixedly connected to the piston 11 and the pressure pipe 8, respectively.

[0018] Specifically, the equipment is started via the control panel 3, and the steam nozzle 21 injects steam into the inner cavity of the steam preheating box 1 for preheating. When the pressure inside the steam preheating box 1 is normal, the pressure relief component is in the closed state, and the piston 11 in the pressure pipe 8 is kept in the initial position under the action of the strong spring 10. The sliding rod 9 does not trigger the control switch 12. When the pressure inside the steam preheating box 1 rises abnormally, the pressure acts on the piston 11 in the pressure pipe 8 through the pressure through hole 7, pushing the piston 11 to compress the strong spring 10 and drive the sliding rod 9 to move. The sliding rod 9 triggers the control switch 12.

[0019] In this embodiment, the pressure relief assembly includes a drive motor 13, which is located on the outside of the mounting box 5. The output end of the drive motor 13 is fixedly connected to a lead screw 14, and the other end of the lead screw 14 is rotatably connected to a fixed circular plate 15. One end of the fixed circular plate 15 is provided with multiple exhaust holes 16, and a pressure relief pipe 17 is fixedly connected to the outside of the fixed circular plate 15. The pressure relief pipe 17 is fixedly connected to the outside of the steam preheating box 1, and a pressure relief hole 23 is provided on the outside of the steam preheating box 1. The pressure relief pipe 17 is connected to the inner cavity of the steam preheating box 1 through the pressure relief hole 23. A sealing plug 18 is threadedly connected to the outside of the lead screw 14. The sealing plug 18 is locked inside the pressure relief pipe 17. Two guide blocks 19 are fixedly connected to the outside of the sealing plug 18. Guide rods 20 are slidably connected to the inner sides of the two guide blocks 19. The two ends of the guide rods 20 are fixedly connected to the mounting box 5 and the steam preheating box 1, respectively.

[0020] Specifically, when the sliding top rod 9 does not trigger the control switch 12 and the drive motor 13 does not start, the sealing plug 18 on the outside of the lead screw 14 is tightly locked inside the pressure relief pipe 17, and the seal is maintained by the cooperation of the guide block 19 and the guide rod 20. When the sliding top rod 9 triggers the control switch 12, the drive motor 13 starts and drives the lead screw 14 to rotate under the support of the fixed circular plate 15, so that the sealing plug 18 moves along the guide rod 20 away from the steam preheating box 1, releasing the seal on the pressure relief pipe 17. At this time, steam enters the mounting box 5 through the pressure through hole 7 and the pressure relief through hole 23, and finally exits through the exhaust pipe 6 to achieve emergency exhaust. The control switch 12 is electrically connected.

[0021] In this embodiment, a mounting block is fixedly connected to the lower end of the drive motor 13, and the drive motor 13 is fixedly connected to the outside of the mounting box 5 through the mounting block.

[0022] Specifically, the design of the mounting block can further improve the stability of the drive motor 13 during operation.

[0023] In this embodiment, multiple placement plates 22 are fixedly installed on the inner wall of the steam preheating box 1.

[0024] Specifically, the design of multiple placement plates 22 allows for convenient placement of items to be preheated.

[0025] It should be noted that this utility model is a steam preheating box with an emergency venting function. In use, first place the item to be preheated on the placement plate 22 on the inner wall of the steam preheating box 1, then close the sealing door 2, and start the equipment via the control panel 3. The steam nozzle 21 injects steam into the inner cavity of the steam preheating box 1 for preheating. When the pressure inside the steam preheating box 1 is normal, the pressure relief component is in the closed state. The piston 11 in the pressure pipe 8 remains in its initial position under the action of the strong spring 10. The sliding top rod 9 does not trigger the control switch 12, the drive motor 13 does not start, and the sealing plug 18 on the outside of the lead screw 14 is tightly locked inside the pressure relief pipe 17. The guide block 19 and guide rod 20... The system maintains a sealed state. When the pressure inside the steam preheating box 1 rises abnormally, the pressure acts on the piston 11 in the pressure pipe 8 through the pressure through hole 7, pushing the piston 11 to compress the strong spring 10 and drive the sliding top rod 9 to move. The sliding top rod 9 triggers the control switch 12, at which time the drive motor 13 starts, and the drive screw 14 rotates under the support of the fixed circular plate 15, causing the sealing plug 18 to move away from the steam preheating box 1 along the guide rod 20, releasing the seal on the pressure relief pipe 17. At this time, steam enters the mounting box 5 through the pressure through hole 7 and the pressure relief through hole 23, and is finally discharged through the exhaust pipe 6 to achieve emergency exhaust. The entire equipment can be moved flexibly by the universal wheels 4 at the lower end, which is quite practical.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steam preheating tank with emergency exhaust function, comprising a steam preheating tank (1), characterized in that: The front end of the steam preheating box (1) is provided with a sealing door (2), and a control panel (3) is fixedly installed on the steam preheating box (1) above the sealing door (2). Universal wheels (4) are installed at the four corners of the lower end of the steam preheating box (1). An installation box (5) is fixedly connected to one side of the steam preheating box (1). An exhaust pipe (6) is fixedly connected to the upper end of the installation box (5). A pressure relief component is provided in the inner cavity of the installation box (5). A steam nozzle (21) is fixedly connected to the lower end of the inner wall of the steam preheating box (1).

2. The steam preheating tank with emergency exhaust function according to claim 1, characterized in that: The pressure relief assembly includes a pressure pipe (8), which is fixedly connected to the steam preheating box (1). A pressure through hole (7) is provided on the outer side of the steam preheating box (1). The pressure pipe (8) is connected to the inner cavity of the steam preheating box (1) through the pressure through hole (7). A sliding top rod (9) is slidably connected to the inner side of the pressure pipe (8). A control switch (12) is installed on the inner wall of the mounting box (5). The control switch (12) is located on one side of the sliding top rod (9).

3. The steam preheating tank with emergency exhaust function according to claim 2, characterized in that: A piston (11) is slidably connected to the inner side of the pressure tube (8). The piston (11) is fixedly connected to one end of the sliding top rod (9). A strong spring (10) is sleeved on the outer side of the sliding top rod (9). The two ends of the strong spring (10) are fixedly connected to the piston (11) and the pressure tube (8) respectively.

4. The steam preheating box with emergency exhaust function according to claim 1, characterized in that: The pressure relief assembly includes a drive motor (13), which is located on the outside of the mounting box (5). The output end of the drive motor (13) is fixedly connected to a lead screw (14), and the other end of the lead screw (14) is rotatably connected to a fixed circular plate (15). One end of the fixed circular plate (15) is provided with multiple exhaust holes (16), and the outside of the fixed circular plate (15) is fixedly connected to a pressure relief pipe (17), which is fixedly connected to the outside of the steam preheating box (1).

5. The steam preheating box with emergency exhaust function according to claim 4, characterized in that: The steam preheating box (1) has a pressure relief hole (23) on its outer side, and the pressure relief pipe (17) is connected to the inner cavity of the steam preheating box (1) through the pressure relief hole (23).

6. The steam preheating box with emergency exhaust function according to claim 4, characterized in that: The outer side of the lead screw (14) is threaded with a sealing plug (18), which is locked inside the pressure relief pipe (17). Two guide blocks (19) are fixedly connected to the outer side of the sealing plug (18), and guide rods (20) are slidably connected to the inner side of the two guide blocks (19). The two ends of the guide rods (20) are fixedly connected to the mounting box (5) and the steam preheating box (1), respectively.

7. The steam preheating box with emergency exhaust function according to claim 4, characterized in that: The lower end of the drive motor (13) is fixedly connected to a mounting block, and the drive motor (13) is fixedly connected to the outside of the mounting box (5) through the mounting block.

8. The steam preheating tank with emergency exhaust function according to claim 1, characterized in that: Multiple placement plates (22) are fixedly installed on the inner wall of the steam preheating box (1).

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