A float valve assembly and float valve tray

Abstract

The utility model discloses a float valve assembly and float valve tray, including valve cover, the valve cover is erected on the tray through the valve leg and is located tray hole department, the top surface of valve cover is provided with the curve boss in the middle portion, is used for forced change gas flow, the valve cover surface is provided with two bevels, and the contour of bevel is wavy curve, the bottom surface of valve cover is provided with a plurality of cushion blocks, the cushion block is used for preventing the valve cover from blocking the passage completely when handling low viscosity material, the utility model relates to float valve tower technical field. The float valve assembly and float valve tray, through the special geometric shape design of valve cover, make the gas of flowing out valve closely tower tray and flow out, and with liquid fully mixes, and the air tightness is very good, and liquid is not easy to leak, and the operation elasticity is big, and the opening area of single valve is smaller, can arrange valve as many as possible on the tray in the tower, to reduce the distance between valve and valve, reduce the dead zone of vapor -liquid contact on the tray, improve the mass transfer efficiency of tray.

Description

Technical Field

[0001] This utility model relates to the field of floating valve tower technology, specifically a floating valve assembly and a floating valve tower tray. Background Technology

[0002] A valve train is a type of plate tower used in gas-liquid mass transfer processes. The valve plates of the floating valves can float, adjusting their opening degree according to changes in gas load. Therefore, valve trains offer high operational flexibility, especially at low loads, maintaining normal operation. Due to excellent gas-liquid contact and low entrainment (due to horizontal gas blowing), valve trains have high tray efficiency and large production capacity. Their simple structure, low manufacturing cost, and adaptability to common material conditions make them one of the most widely used tower types in the chemical and oil refining industries.

[0003] In the field of related tray operation technology, the existing technology has many obvious defects. As for the valve cover structure, its geometric design lacks targeted optimization, which often fails to guide the gas flowing out of the valve to flow closely to the tray, making it difficult for the gas and the liquid on the tray to form effective contact. The mixing effect between the two is poor, which in turn affects the overall mass transfer basis. Furthermore, since the valve cover is in close contact with the tray hole and there is no support structure, when processing low viscosity materials, the material is easy to accumulate in the gap between the valve cover and the tray hole. With the continuous operation, it is very easy to cause complete blockage of the channel.

[0004] Therefore, in view of the above-mentioned shortcomings, the present invention makes the following improvements. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a floating valve assembly and a floating valve tray, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a floating valve assembly and a floating valve tray, including a valve cover, which is mounted on the tray via valve legs and located at the tray opening. A curved protrusion is provided in the center of the top surface of the valve cover to forcibly change the gas flow direction. Two inclined sides are provided on the surface of the valve cover, with the contour of the inclined sides being a wavy curve. Several pads are provided on the bottom surface of the valve cover, which are used to prevent the valve cover from completely blocking the channel when processing low-viscosity materials.

[0007] Preferably, the wavy curve undulates continuously along the extension direction of the hypotenuse, and the peaks and troughs of the curve are evenly distributed.

[0008] Preferably, the pad is positioned at the trough of the curve.

[0009] Preferably, there are two valve legs, and the two valve legs are respectively connected to the two sides of the valve cover.

[0010] Preferably, the bottoms of both valve legs are inserted into the tray hole, and the bottoms of the two valve legs are bent in opposite directions to form a limiting structure to prevent the valve legs from falling out of the tray hole.

[0011] This utility model also discloses a floating valve tray, including a tray and a tray hole opened on the top surface of the tray, wherein a floating valve assembly is provided at the tray hole, and the floating valve assembly is the aforementioned floating valve assembly.

[0012] Beneficial effects

[0013] This invention provides a float valve assembly and a float valve tray. Compared with the prior art, it has the following advantages:

[0014] (1) Through the special geometric design of the valve cover, the gas flowing out of the valve flows out close to the tray, mixes fully with the liquid, and has excellent air tightness, making it less prone to leakage. It has great operational flexibility and a small opening area for a single valve. As many valves as possible can be arranged on the tray in the tower to reduce the distance between valves, reduce the dead zone of gas-liquid contact on the tray, and improve the mass transfer efficiency of the tray.

[0015] (2) By setting the bumps, gaps can be left when processing low-viscosity materials, so as not to completely block the channel and make it easier to float. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation of the float valve assembly of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the float valve assembly of this utility model;

[0018] Figure 3 This is a top view of the float valve assembly of this utility model.

[0019] In the diagram: 1. Valve cover; 2. Valve leg; 3. Curved protrusion; 4. Pad. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figures 1 to 3As shown, a float valve assembly can be made of various metal materials, and if necessary, a composite of metal and non-metal materials to meet the needs of different working conditions. It includes a valve cover 1, which is a polygon symmetrical about its center. The valve cover 1 is mounted on a tray via valve legs 2 and located at the tray opening. Two valve legs 2 are provided, each corresponding to one of the two sides of the valve cover 1. The bottoms of both valve legs 2 are inserted into the tray opening, and their bottoms are bent in opposite directions. A limiting structure is provided to prevent the valve leg 2 from falling out of the tray hole. A curved protrusion 3 is provided in the middle of the top surface of the valve cover 1 to force the change of gas flow direction. The surface of the valve cover 1 is provided with two inclined sides, the outline of which is a wavy curve. The wavy curve undulates continuously along the extension direction of the inclined side, and the peaks and troughs of the curve are evenly distributed. Several pads 4 are provided on the bottom surface of the valve cover 1. The pads 4 are used to prevent the valve cover 1 from completely blocking the channel when processing low viscosity materials. The pads 4 are located at the troughs of the curve.

[0023] A movable float valve is installed at each tray orifice. When the air velocity through the tray orifice is high, the float valve is lifted up. When the air velocity through the tray orifice is low, the float valve descends due to its own weight. The position of the float valve is automatically adjusted according to the air flow rate, thereby making the air velocity entering the liquid layer basically stable.

[0024] Example 2

[0025] Please see Figure 1 As shown, this utility model also provides a floating valve tray, which includes a tray and tray holes formed on the tray. A floating valve assembly is provided at the tray hole. The floating valve assembly is the aforementioned floating valve assembly. The floating valve assemblies on the tray can be arranged in a forked or straight arrangement. When arranged in a forked arrangement, airflow is blown out between two adjacent floating valve assemblies, making it easier for the liquid between the two adjacent floating valve assemblies to be pushed. The liquid level gradient is small and the bubbling is uniform. Therefore, it is preferable to use a forked arrangement.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] The embodiments of the utility model have been described in detail above, but the content described is only a preferred embodiment of the utility model and should not be considered as limiting the scope of the utility model. All equivalent changes and improvements made in accordance with the claims of the utility model should still fall within the patent coverage of the utility model.

Claims

1. A float valve assembly characterized by: Includes a valve cover (1), which is mounted on the tray via a valve leg (2) and located at the tray hole. A curved protrusion (3) is provided in the middle of the top surface of the valve cover (1) to force a change in the gas flow direction. Two inclined sides are provided on the surface of the valve cover (1), and the contour of the inclined sides is a wavy curve. Several pads (4) are provided on the bottom surface of the valve cover (1). The pads (4) are used to prevent the valve cover (1) from completely blocking the channel when processing low-viscosity materials.

2. A float valve assembly according to claim 1 wherein: The wavy curve undulates continuously along the direction of the extension of the hypotenuse, and the peaks and troughs of the curve are evenly distributed.

3. A float valve assembly according to claim 2, characterized in that: The pad (4) is placed at the trough of the curve.

4. A float valve assembly according to claim 3, characterized in that: The valve leg (2) is provided in two parts, and the two valve legs (2) are respectively connected to the two sides of the valve cover (1).

5. A float valve assembly according to claim 4, characterized in that: The bottoms of the two valve legs (2) are inserted into the tray hole, and the bottoms of the two are bent in opposite directions to form a limiting structure to prevent the valve legs (2) from falling out of the tray hole.

6. A floating valve tray, comprising a tray and a tray opening on the top surface of the tray, wherein a floating valve assembly is disposed at the tray opening, characterized in that, The float valve assembly is the float valve assembly described in any one of claims 1 to 5.

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