CN209771759U - Semicircle jet overflow tray - Google Patents

Abstract

The utility model discloses a semi-circular arc jet overflow type tower plate, which comprises a tower plate body and a plurality of semi-circular arc nozzles arranged on the tower plate body, wherein the semi-circular arc nozzles are provided with a plurality of air guide holes for the ascending gas in a tower body to pass through; one end of the tower plate body is connected with the tower body, and the other end of the tower plate body is provided with a downcomer. The semi-arc spraying overflow type tower plate not only can enable gas-liquid contact to be more uniform, but also is simple in structure, convenient to operate, convenient to disassemble and maintain subsequently, and capable of improving working efficiency.

Description

Semicircle jet overflow tray

technical field

The utility model belongs to the field of chemical equipment, in particular to a semi-arc jet overflow tray.

Background technique

Absorption or rectification is an important unit in the industrial production process. It is an important means of purification, recovery and purification of products in chemical, pharmaceutical and other industries. There are many types of tower equipment. According to the structure, it can be divided into plate type and packed structure. For gas absorption or liquid separation, the trays in the column are particularly important. There are mainly orifice plate, inclined hole and float valve structures in the plate structure. The first two structures have a certain range of requirements for the gas-liquid flow in the tower, otherwise problems such as liquid flooding and leakage will be caused, while the third structure is based on The gas-liquid flow rate is different, and the float valve can move up and down, but the gas-liquid balance effect cannot reach the ideal state.

Utility model content

Purpose of the utility model: The purpose of the utility model is to provide a semi-arc jet overflow tray that can make the gas and liquid contact evenly.

Technical solution: The semi-arc spray overflow tray of the utility model includes a tray body, a number of semi-arc nozzles arranged on the tray body, and a number of semi-arc nozzles for the rising gas in the tower to pass through. The air guide hole; one end of the tray body is connected with the tower body, and the other end is provided with a downcomer.

Furthermore, one end of the tray body is arranged on the tower body through a bracket. There are several trays vertically in the tower, and the downcomers on adjacent trays are arranged crosswise on the left and right.

Furthermore, the upper end of the downcomer is higher than the tray body to form an overflow weir, and the lower end extends to between the adjacent next tray body and the top of the semicircular arc nozzle thereon. Preferably, the upper end of the downcomer may be 10-15 mm higher than the tray body. The lower end of the downcomer can be 5-8mm away from the body of the next adjacent tray. The downcomer may be a crescent-shaped downcomer.

Furthermore, there may be 3-7 semicircular arc nozzles, which are evenly distributed on the tray body. There can be 4-12 air guide holes, which are evenly distributed on the semicircular arc nozzle in the circumferential direction.

Beneficial effects: Compared with the prior art, the utility model has the remarkable advantages that: the semi-arc jet overflow tray can not only make the gas-liquid contact more uniform, but also has a simple structure, convenient operation, and convenient subsequent disassembly and maintenance ,Improved work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model tray;

Fig. 2 is the top view of the utility model tray;

Fig. 3 is a schematic diagram of the structure of the semi-arc nozzle of the present invention.

Detailed ways

The technical solutions of the present utility model will be described in further detail below in conjunction with the embodiments.

The utility model's semi-arc jet overflow tray is suitable for the process of gas absorption or liquid-liquid separation, and is a device for improving the uniform contact of gas and liquid. It includes a tray body 1 with one end connected to the inner wall of the tower through a bracket 5 and a crescent-shaped downcomer 4 at the other end, a number of semi-circular nozzles 2 evenly arranged on the tray body 1, and circumferentially uniform nozzles. A plurality of air guiding holes 3 arranged on the semi-arc nozzle 2, as shown in FIG. 1 . The contact point between the tower body 1 and the semi-arc nozzle 2 is connected, and the setting of the air guide hole 3 can make the rising gas in the tower body contact with the liquid above the tray body 1 evenly, so that the gas-liquid cross-mixing is uniform. Preferably, there are 3-7 semicircular arc nozzles 2, which are evenly distributed on the tray body 1. There are 4-12 air guide holes 3, which are evenly distributed on the semi-arc nozzle 2 in the circumferential direction, as shown in Fig. 2 and Fig. 3 .

The semicircle-arc jet overflow trays of the utility model are evenly arranged in the tower body vertically along the tower body, and the adjacent trays are intersected, that is, the crescent-shaped downcomers 4 on the adjacent trays are intersected left and right, so that The liquid can flow into the adjacent next tray body 1 through the crescent-shaped downcomer 4 . The upper end of the crescent-shaped downcomer 4 is higher than the tray body 1 to form an overflow weir, and the control tray body 1 has a certain liquid level on the plate surface, while the lower end extends to the adjacent next tray body 1 and the semicircle nozzle 2 Between the tops, thereby avoiding the gas "short circuit" phenomenon. Preferably, the upper end of the crescent-shaped downcomer 4 is 10-15 mm higher than the tray body 1 . The distance between the lower end of the crescent-shaped downcomer 4 and the body 1 of the next adjacent tray is 5-8mm. When using the tray of the utility model, glass wool filler is used to fill the tray and the inner wall of the tower to avoid liquid leakage or air leakage.

Working principle: The liquid in the tower flows horizontally along the tray body 1, and evenly contacts the gas rising through the air guide hole 3 on the semi-circular nozzle 2 in the tower, and then flows to the adjacent lower part along the crescent-shaped downcomer 4 at one end The tray body 1 realizes gas-liquid mass transfer.

Claims (9)

1. A semi-circular arc jet overflow type tower plate is characterized in that: the tower plate comprises a tower plate body (1) and a plurality of semi-arc nozzles (2) arranged on the tower plate body (1), wherein the semi-arc nozzles (2) are provided with a plurality of air guide holes (3) for the ascending gas in the tower body to pass through; one end of the tower plate body (1) is connected with the tower body, and the other end is provided with a downcomer (4).

2. A semi-arc jet flooded tray in accordance with claim 1, wherein: one end of the tower plate body (1) is arranged on the tower body through a bracket (5).

3. A semi-arc jet flooded tray in accordance with claim 1, wherein: the tower plates are vertically arranged in the tower body along the tower body, and the downcomers (4) on the adjacent tower plates are arranged in a left-right cross way.

4. A semi-arc jet flooded tray in accordance with claim 3, wherein: the upper end of the downcomer (4) is higher than the tray body (1) to form an overflow weir, and the lower end of the downcomer extends to a position between the adjacent next tray body (1) and the top end of the semicircular spray head (2) on the next tray body.

5. A semi-arc jet flooded tray in accordance with claim 4, wherein: the upper end of the downcomer (4) is 10-15mm higher than the tray body (1).

6. A semi-arc jet flooded tray in accordance with claim 4, wherein: the lower end of the downcomer (4) is 5-8mm away from the adjacent next tower plate body (1).

7. A semi-arc jet flooded tray in accordance with claim 1, wherein: the number of the semi-circular nozzles (2) is 3-7, and the semi-circular nozzles are uniformly distributed on the tower plate body (1).

8. A semi-arc jet flooded tray in accordance with claim 1, wherein: the number of the air guide holes (3) is 4-12, and the air guide holes are circumferentially and uniformly distributed on the semi-arc nozzle (2).

9. A semi-arc jet flooded tray in accordance with claim 1, wherein: the downcomer (4) is a crescent downcomer.