Self-adaptive on-off float valve for petrochemical fluid medium

Abstract

The utility model discloses a petrochemical fluid medium self-adaptive on-off float valve, which relates to the technical field of float valve trays, and comprises a float valve body which is arranged at the position of a tray valve hole and can float up and down, the floating valve body comprises a rectangular valve plate arranged above a tower plate, supporting legs which extend downwards from the opposite sides of the valve plate to the lower part of the tower plate and are folded at the bottom, convex edges which extend towards two sides from the edges of the other two opposite sides of the valve plate along the horizontal direction, and a valve cap which is arranged at the top of the valve plate in an upward convex manner; the supporting feet abut against a tower plate valve hole upwards when the floating valve body floats, the protruding edges are erected on the tower plate valve hole downwards when the floating valve body falls down, and a pair of air holes transversely distributed along the circumferential face are formed in the circumferential direction of the valve bonnet. Through the arrangement of the valve plate, the supporting feet, the protruding edges and the valve bonnet, the floating valve body is good in operation elasticity, simple and symmetrical in structure, convenient to install, good in floating balance performance, not prone to inclining, clamping and falling off and stable in work.

Description

Technical Field

[0001] The utility model relates to the technical field of float valve trays, in particular to a petrochemical fluid medium self-adaptive on-off float valve. Background Art

[0002] Valve trays are widely used in the petrochemical industry. These trays feature floating valves mounted through valve holes on the trays, allowing the rising airflow to contact the liquid flowing through the trays for mass transfer. Existing valves can have complex structures, leading to irregular airflow in the trays. The valves can become stuck or tilted during the floating process, preventing them from opening freely. This results in suboptimal airflow handling, uneven airflow dispersion, and inadequate gas-liquid contact, requiring frequent maintenance and compromising tray efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a petrochemical fluid medium self-adaptive on-off float valve to improve the working stability of the float valve.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a petrochemical fluid medium adaptive on-off float valve, comprising a float valve body arranged at the valve hole position of a tower plate and capable of floating up and down, the float valve body comprising a rectangular valve plate arranged above the tower plate, supporting legs extending downward from opposite sides of the valve plate to the bottom of the tower plate and folded at the bottom, convex edges extending horizontally to both sides from the other two opposite side edges of the valve plate, and a valve cap protruding upward on the top of the valve plate, the supporting legs pressing upward against the valve hole of the tower plate when the float valve body floats, the convex edges being downwardly mounted on the valve hole of the tower plate when the float valve body falls, and the valve cap being circumferentially provided with a pair of air holes distributed laterally along the circumference.

[0005] Preferably, the support leg is L-shaped.

[0006] Preferably, the valve plate, the support legs and the convex edge are an integrally formed structure.

[0007] Preferably, at least two groups of valve caps are provided, and the valve caps are symmetrically arranged on the valve plate.

[0008] Preferably, the float valve body is an axisymmetric structure.

[0009] The utility model has the following beneficial effects:

[0010] The utility model provides a valve plate, a support foot, a convex edge and a valve cap, and the float valve body has good operating elasticity, a simple and symmetrical structure, and is easy to install. When floating, the float valve body is well balanced when blown up, and the valve hole of the tower plate adapted to the size is not easy to tilt, get stuck or fall off when moving. When the gas passes through the float valve body, it is blown into the liquid layer in a horizontal direction, and less liquid foam is entrained, so that the bubbling is smooth and the working performance of the float valve body is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 This is a top view of the utility model;

[0013] Figure 3 This is a diagram of the floating valve body of the utility model in a falling state;

[0014] Figure 4 For this utility model Figure 3 A magnified view of the structure at center A;

[0015] Figure 5 This is a diagram showing the floating state of the float valve body of the utility model;

[0016] Figure 6 For this utility model Figure 5 A magnified view of the structure at point B in the middle;

[0017] Figure 7 This is a schematic diagram of the structure of the float valve body of the utility model;

[0018] Figure 8 This is the right side view of the float valve body of the utility model.

[0019] In the figure: 1, tower plate; 2, float valve body; 21, valve plate; 22, support foot; 23, convex edge; 24, valve cap; 241, air hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1-8 As shown, the utility model provides a technical solution: an adaptive on-off float valve for petrochemical fluid media, comprising a float valve body 2 disposed at a valve hole position on a tray 1 and capable of floating up and down. The float valve body 2 is an axisymmetric structure, comprising a rectangular valve disc 21 disposed above the tray 1, legs 22 extending downward from opposite sides of the valve disc 21 to below the tray 1 and folded at the bottom, flanges 23 extending horizontally from two other opposite side edges of the valve disc 21 to both sides, and a valve cap 24 protruding upward from the top of the valve disc 21;

[0022] The valve plate 21, the support leg 22, and the convex edge 23 are integrally formed. The support leg 22 is L-shaped and has a large width, is not easily deformed, and rises smoothly during the floating process under the vapor phase pressure. The support leg 22 presses upward against the valve hole of the tower plate 1 when the float valve body 2 floats up, and the convex edge 23 is downwardly mounted on the valve hole of the tower plate 1 when the float valve body 2 falls. The valve cap 24 is circumferentially provided with a pair of air holes 241 distributed laterally along the circumference.

[0023] At least two sets of valve caps 24 are provided, and the valve caps 24 are symmetrically arranged on the valve disc 21. The valve caps 24 can be a circle of upwardly convex protrusions punched upward from the valve disc 21, or a circle of existing valve caps 24 welded to the valve disc 21;

[0024] When there is no rising vapor phase in the tower, the float valve body 2 is in a closed state. When there is rising vapor phase in the tower, the float valve body 2 is impacted by the airflow and opens. Figure 1 As shown, the opening increases with the increase of the vapor phase, the float valve body 2 floats smoothly, and the gas-liquid contact is uniform and sufficient.

[0025] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0026] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petrochemical fluid medium adaptive on-off float valve, comprising a float valve body (2) disposed at a valve hole position of a tower plate (1) and capable of floating up and down, characterized in that: The float valve body (2) comprises a rectangular valve plate (21) arranged above the tower plate (1), a support leg (22) extending downward from the opposite side of the valve plate (21) to the bottom of the tower plate (1) and folded at the bottom, a convex edge (23) extending horizontally to both sides from the other two opposite side edges of the valve plate (21), and a valve cap (24) protruding upward on the top of the valve plate (21), wherein the support leg (22) presses upward against the valve hole of the tower plate (1) when the float valve body (2) floats up, and the convex edge (23) is downwardly mounted on the valve hole of the tower plate (1) when the float valve body (2) falls down, and the valve cap (24) is provided with a pair of air holes (241) distributed transversely along the circumference.

2. The petrochemical fluid medium adaptive on-off float valve according to claim 1, characterized in that: The support leg (22) is L-shaped.

3. The petrochemical fluid medium adaptive on-off float valve according to claim 1, characterized in that: The valve plate (21), the supporting foot (22) and the flange (23) are an integrally formed structure.

4. The petrochemical fluid medium adaptive on-off float valve according to claim 1, characterized in that: At least two groups of valve caps (24) are provided, and the valve caps (24) are symmetrically arranged on the valve plate (21).

5. The petrochemical fluid medium adaptive on-off float valve according to claim 1, characterized in that: The float valve body (2) is an axisymmetric structure.

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