Pressure relief safety door for tray

By adjusting the screw and nut, the safety door can be quickly adjusted and positioned, solving the problem of the inability to adjust the opening angle in existing technologies, and improving the safety and operational efficiency of the equipment.

CN224541006UActive Publication Date: 2026-07-24SUZHOU BAILINUO PETROCHEMICAL MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU BAILINUO PETROCHEMICAL MACHINERY CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing pressure relief safety door for the tower tray cannot be quickly positioned and its opening angle adjusted, thus failing to meet different usage requirements.

Method used

A structure for adjusting the screw has been designed, including a distillation safety gate and an adjusting screw. By setting the adjusting screw and adjusting its threaded connection, the position of the screw can be quickly adjusted. By adjusting the nut and the elastic element, the safety gate can be quickly positioned and locked.

Benefits of technology

It enables rapid adjustment and positioning of the safety door, meeting different usage needs and improving the safety and operational efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tray pressure relief safety door, include: rectifying column tray, rectifying column tray one end rotation connection has the adjusting screw rod, and the rectifying column tray other end rotation connection has the pressure relief safety door, and the adjusting screw rod one end is provided with the rotation connecting arm of screw joint, and adjusting screw rod, pressure relief safety door and rotation connecting arm number all are provided with two groups, in the utility model, through rotating the adjusting external thread rod, can adjust the position of the screw joint of adjusting screw connecting arm board on the adjusting external thread rod, thereby can through the opening angle of pressure relief safety door of quick regulation of sliding connection arm board and connecting slide rod, and through setting adjusting nut and adjusting elastic element, through rotating adjusting nut makes it close adjusting screw connecting arm board complete compression adjusting elastic element, thereby can play the effect of locking and preventing loosening of adjusting screw rod and rotation connecting arm within a certain degree.
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Description

Technical Field

[0001] This utility model relates to the technical field of distillation column equipment, specifically a tray pressure relief safety door. Background Technology

[0002] Distillation columns are key equipment used in many fields such as chemical engineering, petroleum refining, food processing, and pharmaceuticals to separate liquid mixtures. In the internal structure of a distillation column, the distillation column tray is the key component for realizing gas-liquid mass transfer.

[0003] Distillation column trays are typically equipped with safety valves for pressure relief. During normal operation, the distillation column maintains a specific pressure range to ensure the stability of the distillation process. However, due to various unforeseen factors, such as sudden changes in feed flow, heating system malfunctions, or abnormal chemical reactions within the column, the pressure inside the column may rise sharply. In such cases, pressure relief is required through the safety valve. However, existing tray pressure relief safety valves cannot be quickly positioned at their opening angle, making them inconvenient to adjust for different usage needs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the existing pressure relief safety door for tower trays cannot quickly position the opening angle of the pressure relief safety door during use, which makes it inconvenient to adjust it according to different usage needs. Therefore, this utility model provides a pressure relief safety door for tower trays.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure relief safety valve for a distillation column, comprising: a distillation column tray, one end of which is rotatably connected to an adjusting screw, and the other end of which is rotatably connected to a pressure relief safety valve. One end of the adjusting screw is screwed with a rotating connecting arm, and two sets of the adjusting screw, the pressure relief safety valve, and the rotating connecting arm are provided.

[0006] As a further embodiment of this utility model: the distillation column tray includes a distillation column tray body, one end of which is provided with a safety door groove, and a safety door adapter seat is fixedly provided at the end of the distillation column tray body near the safety door groove, and a safety door adapter shaft is fixedly passed through the inside of the safety door adapter seat.

[0007] As a further embodiment of this utility model: the adjusting screw includes an adjusting external thread rod, an adjusting nut is screwed to one end of the adjusting external thread rod, an adjusting elastic element is sleeved on the outside of the adjusting external thread rod below the adjusting nut, and the adjusting external thread rod is rotatably connected to the distillation column tray near the safety door groove and away from the safety door adapter seat.

[0008] As a further embodiment of this utility model: the pressure relief safety door includes a pressure relief safety door panel, an L-shaped adapter arm is fixedly installed at one upper end of the pressure relief safety door panel, an adapter through hole is opened through one end of the L-shaped adapter arm, an adjusting slide seat is fixedly installed at the other upper end of the pressure relief safety door panel, an adjusting slide groove is opened through one end of the adjusting slide seat, an embedded door panel is fixedly installed at one lower end of the pressure relief safety door panel, the safety door adapter shaft is adapted to be adapted to be adapted to be adapted to be adapted to be embedded in the safety door groove.

[0009] As a further embodiment of this utility model: the rotating connecting arm includes an adjusting screw arm plate, one end of which has an internal threaded through hole, and one end of the adjusting screw arm plate is rotatably connected to a sliding arm plate, one end of which has a connecting slide rod fixedly inserted, the internal threaded through hole being adapted to screw the adjusting external thread rod, and the connecting slide rod being adapted to slide inside the adjusting groove.

[0010] As a further embodiment of this utility model: every two sets of the L-shaped adapter arms, the adapter through holes, the adjusting slide seats and the adjusting slides are adapted to and fixed to one set of the pressure relief safety door panels.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the position of the adjusting screw arm plate screwed onto the adjusting screw rod can be adjusted by rotating the adjusting external thread rod. This allows for quick adjustment of the opening angle of the pressure relief safety door via the sliding arm plate and connecting slide rod. Simultaneously, by setting an adjusting nut and an adjusting elastic element, rotating the adjusting nut brings it close to the adjusting screw arm plate to fully compress the adjusting elastic element, thereby achieving a certain degree of locking and anti-loosening effect on the adjusting screw and rotating connecting arm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the pressure relief safety door of the tower tray described in this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the distillation column tray in the tray pressure relief safety valve of this utility model;

[0015] Figure 3 This is a schematic diagram of the adjusting screw in the pressure relief safety door of the tower tray described in this utility model;

[0016] Figure 4 This is a schematic diagram of the pressure relief safety door in the tower tray pressure relief safety door of this utility model;

[0017] Figure 5This is a schematic diagram of the rotating connecting arm in the pressure relief safety door of the tower tray described in this utility model.

[0018] In the diagram: 1. Distillation column tray; 2. Adjusting screw; 3. Pressure relief safety valve; 4. Rotating connecting arm; 10. Distillation column tray body; 11. Safety valve slot; 12. Safety valve adapter seat; 13. Safety valve adapter shaft; 20. Adjusting external thread rod; 21. Adjusting nut; 22. Adjusting elastic element; 30. Pressure relief safety valve plate; 31. L-shaped adapter arm; 32. Adapter through hole; 33. Adjusting slide seat; 34. Adjusting slide; 35. Embedded door plate; 40. Adjusting screw arm plate; 41. Internal threaded through hole; 42. Sliding arm plate; 43. Connecting slide rod. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0021] Reference Figure 1In this embodiment of the utility model, the tray pressure relief safety door includes: a distillation column tray 1, one end of the distillation column tray 1 is rotatably connected to an adjusting screw 2, the other end of the distillation column tray 1 is rotatably connected to a pressure relief safety door 3, one end of the adjusting screw 2 is screwed with a rotating connecting arm 4, and two sets of the adjusting screw 2, the pressure relief safety door 3 and the rotating connecting arm 4 are provided.

[0022] Reference Figure 2 The distillation column tray 1 includes a distillation column tray body 10. A safety door groove 11 is provided through one end of the distillation column tray body 10. A safety door adapter seat 12 is fixedly provided at one end of the distillation column tray body 10 near the safety door groove 11. A safety door adapter shaft 13 is fixedly passed through the inside of the safety door adapter seat 12.

[0023] Reference Figure 3 The adjusting screw 2 includes an adjusting external threaded rod 20. An adjusting nut 21 is screwed to one end of the adjusting external threaded rod 20. An adjusting elastic element 22 is sleeved on the outside of the adjusting external threaded rod 20 below the adjusting nut 21. The adjusting external threaded rod 20 is rotatably connected to the distillation column tray 10 near the safety door slot 11 and away from the safety door adapter seat 12.

[0024] By adopting the above solution, the position of the adjusting screw arm plate 40 screwed on the adjusting screw rod 20 can be adjusted by rotating the adjusting external thread rod 20, thereby enabling the opening angle of the pressure relief safety door 3 to be quickly adjusted through the sliding arm plate 42 and the connecting slide rod 43.

[0025] Reference Figure 4 The pressure relief safety door 3 includes a pressure relief safety door panel 30. An L-shaped adapter arm 31 is fixedly installed at one upper end of the pressure relief safety door panel 30. An adapter through hole 32 is opened through one end of the L-shaped adapter arm 31. An adjusting slide seat 33 is fixedly installed at the other upper end of the pressure relief safety door panel 30. An adjusting slide 34 is opened through one end of the adjusting slide seat 33. An embedded door panel 35 is fixedly installed at one lower end of the pressure relief safety door panel 30. The safety door adapter shaft 13 is adapted to be adapted to be adapted to be adapted to be adapted to be adapted to be adapted to be adapted to be embedded in the safety door groove 11. Every two sets of L-shaped adapter arms 31, adapter through holes 32, adjusting slide seats 33 and adjusting slides 34 are adapted to be fixed to one set of pressure relief safety door panels 30.

[0026] Reference Figure 5 The rotating connecting arm 4 includes an adjusting screw arm plate 40. One end of the adjusting screw arm plate 40 has an internal threaded through hole 41. One end of the adjusting screw arm plate 40 is rotatably connected to a sliding arm plate 42. One end of the sliding arm plate 42 has a connecting slide rod 43 fixedly inserted. The internal threaded through hole 41 is adapted to screw onto an adjusting external threaded rod 20. The connecting slide rod 43 is adapted to slide inside the adjusting slide groove 34.

[0027] The above solution is adopted: by setting an adjusting nut 21 and an adjusting elastic element 22, by rotating the adjusting nut 21 to bring it close to the adjusting screw arm plate 40 to fully compress the adjusting elastic element 22, the adjusting screw 2 and the rotating connecting arm 4 can be locked and prevented from loosening to a certain extent.

[0028] The working principle of this utility model is as follows: When in use, by rotating the adjusting external thread rod 20, the position of the adjusting screw arm plate 40 screwed on the adjusting external thread rod 20 can be adjusted. This allows for rapid adjustment of the opening angle of the pressure relief safety door 3 through the sliding arm plate 42 and the connecting slide rod 43. At the same time, by setting the adjusting nut 21 and the adjusting elastic element 22, rotating the adjusting nut 21 makes it close to the adjusting screw arm plate 40 to completely compress the adjusting elastic element 22, thereby achieving a certain degree of locking and anti-loosening effect on the adjusting screw rod 2 and the rotating connecting arm 4.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pressure relief safety door for a tower tray, characterized in that, include: A distillation column tray (1) is rotatably connected to one end of the distillation column tray (1) and rotatably connected to the other end of the distillation column tray (1) and a pressure relief safety valve (3). A rotating connecting arm (4) is screwed to one end of the adjusting screw (2). There are two sets of the adjusting screw (2), the pressure relief safety valve (3) and the rotating connecting arm (4).

2. The tray pressure relief safety door according to claim 1, characterized in that, The distillation column tray (1) includes a distillation column tray body (10). A safety door slot (11) is provided through one end of the distillation column tray body (10). A safety door adapter seat (12) is fixedly provided at one end of the distillation column tray body (10) near the safety door slot (11). A safety door adapter shaft (13) is fixedly provided inside the safety door adapter seat (12).

3. The tray pressure relief safety door according to claim 1, characterized in that, The adjusting screw (2) includes an adjusting external thread rod (20), and an adjusting nut (21) is screwed onto one end of the adjusting external thread rod (20). An adjusting elastic element (22) is sleeved on the outside of the adjusting external thread rod (20) below the adjusting nut (21).

4. The tray pressure relief safety door according to claim 1, characterized in that, The pressure relief safety door (3) includes a pressure relief safety door panel (30). An L-shaped adapter arm (31) is fixedly installed at one upper end of the pressure relief safety door panel (30). An adapter through hole (32) is opened through one end of the L-shaped adapter arm (31). An adjustment slide seat (33) is fixedly installed at the other upper end of the pressure relief safety door panel (30). An adjustment slide groove (34) is opened through one end of the adjustment slide seat (33). An embedded door panel (35) is fixedly installed at one lower end of the pressure relief safety door panel (30).

5. The tray pressure relief safety door according to claim 1, characterized in that, The rotating connecting arm (4) includes an adjusting screw arm plate (40), one end of which is provided with an internal threaded through hole (41), and one end of the adjusting screw arm plate (40) is rotatably connected to a sliding arm plate (42), and one end of the sliding arm plate (42) is fixedly provided with a connecting slide rod (43).

6. The tray pressure relief safety door according to claim 4, characterized in that, Each pair of L-shaped adapter arms (31), adapter through holes (32), adjusting slide seats (33) and adjusting slides (34) are fitted with a set of pressure relief safety door panels (30) for fixed installation.