A small gas phase large liquid phase high efficiency tray

Abstract

This utility model discloses a high-efficiency tray for small gas phase and large liquid phase, belonging to the field of trays, including a tray body; two active zone baffles are provided on the top of the tray body, and a downcomer is provided on the outer wall of the tray body; several through holes are opened on the top of the tray body, and a floating valve is provided on each through hole; the floating valve includes a valve cover mounted on the through hole; a pressure plate one slidably set inside the valve cover; a guide column connected to the top of the pressure plate one and sliding through the middle of the valve cover, the outer wall of the guide column having several air holes; and a second pressure plate two set on the top of the guide column, which is used to shield the top of the valve cover. Compared with the conventional trays in the prior art, which have simple floating valve structures, single gas phase outflow forms, and poor dispersion effects, this high-efficiency tray for small gas phase and large liquid phase uses multi-channel gas phase diversion of the floating valve component combined with the arc-shaped sawtooth structure of the guide plate for secondary dispersion, so that the gas phase enters the liquid phase as finer and more uniform bubbles, greatly increasing the gas-liquid contact area.

Description

Technical Field

[0001] This utility model belongs to the field of tower trays, specifically relating to a high-efficiency tower tray with a small gas phase and a large liquid phase. Background Technology

[0002] In chemical separation processes, trays are core components of equipment such as distillation columns and absorption columns. Their function is to provide a place for sufficient contact between the gas and liquid phases to achieve mass and heat transfer.

[0003] Traditional tower trays suffer from limited gas-liquid contact area, low mass transfer efficiency, and uneven gas phase distribution. Especially when handling small gas phases and large liquid phases, liquid phase backmixing and gas phase flow deviation are prone to occur, resulting in poor separation effect and increased energy consumption. For example, some conventional floating valve tower trays have simple floating valve structures and a single gas phase outflow form, making it difficult to uniformly disperse the gas phase in the large liquid phase. This limits the tower equipment's adaptability to complex operating conditions and the improvement of separation efficiency. To solve the above-mentioned problems, a new method is proposed. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a high-efficiency tower tray with small gas phase and large liquid phase, which has the advantages of high gas-liquid contact and good mass transfer effect.

[0005] To achieve the above objectives, this utility model provides a high-efficiency tray with a small gas phase and a large liquid phase, including a tray body; two active zone baffles are provided on the top of the tray body, and a downcomer is provided on the outer wall of the tray body; The top of the disc has several through holes, and each through hole is equipped with a float valve. The floating valve includes a valve cover mounted on a through hole; a pressure plate 1 slidably disposed inside the valve cover; a guide post connected to the top of the pressure plate 1 and slidably passing through the middle of the valve cover, the outer wall of the guide post having several air holes; a pressure plate 2 disposed on the top of the guide post, the pressure plate 2 being used to shield the top of the valve cover; three air outlets disposed on the outer wall of the valve cover; and three blocks respectively disposed on the pressure plate 1 and respectively used to shield the three air outlets. The valve cover is equipped with guide plates via two support legs.

[0006] Furthermore, the guide plate has an arc-shaped serrated edge structure.

[0007] Furthermore, a limiting groove is provided inside the air outlet; a slider that can slide in the limiting groove is provided on the outer wall of the pressure plate.

[0008] Furthermore, the number of pores is equal to the number of arc-shaped sawtooth structures on the guide plate, and their relative positions are intersecting.

[0009] Furthermore, a receiving groove is provided on the top of the valve cover for receiving the second pressure plate.

[0010] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include: This utility model's small gas phase and large liquid phase high-efficiency tower tray, compared with the conventional tower tray in the prior art, has a simple floating valve structure, a single gas phase outflow form, and poor dispersion effect. This tower tray uses the multi-channel gas phase diversion of the floating valve component and the arc-shaped sawtooth structure of the guide plate for secondary dispersion, so that the gas phase enters the liquid phase as finer and more uniform bubbles, which greatly increases the gas-liquid contact area. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the closed structure of the float valve component of this utility model; Figure 3 This is a schematic diagram of the unfolded structure of the float valve component of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the float valve component of this utility model.

[0012] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. disc body; 2. active area baffle; 3. downcomer; 4. through hole; 5. float valve; 51. valve cover; 52. pressure plate one; 53. guide post; 54. vent; 55. pressure plate two; 56. air outlet; 57. stop block; 6. support leg; 7. guide plate; 8. limiting groove; 9. slider; 10. receiving groove. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1 This utility model provides a high-efficiency tower tray with small gas phase and large liquid phase, which is mainly composed of a tray body 1, an active zone baffle 2, a downcomer 3, a floating valve 5, a guide plate 7, etc. The tray 1, as the basic load-bearing component, is a circular structure that can be adapted to other shapes depending on the tower body. Its material is selected from corrosion-resistant, high-strength metals or alloys, such as stainless steel, to ensure stable operation under long-term chemical media. It supports the gas and liquid phases on the tray and provides a platform for gas-liquid mass transfer. The active zone baffle 2 at the top divides the space at the top of the tray 1, guides the liquid phase flow path, avoids liquid phase short circuits, and makes the liquid phase more evenly distributed on the tray 1. The downcomer 3 on the outer wall is used to receive the liquid phase from the upper tray and guide it to the tray 1 of this layer, while discharging the gas phase of the tray 1 of this layer, realizing gas-liquid separation. Several through holes 4 opened at the top of the tray 1 are gas phase rising channels and also the installation base of the float valve 5. Specifically, refer to Figure 2-4 The float valve component 5 includes a valve cover 51 mounted on the through hole 4, which is the basic outer shell of the float valve component 5. The material is compatible with the disc body 1 and plays the role of supporting and constraining the internal components and controlling the outflow of gas phase. A receiving groove 10 is opened on its top to receive the pressure plate 2 55 and ensure the stability of the pressure plate 2 55 in shielding the top of the valve cover 51. Three air outlets 56 are opened on the outer wall, which is one of the channels for the gas phase to flow out of the float valve component 5. A limiting groove 8 is opened inside the air outlet 56, which cooperates with the slider 9 on the pressure plate 1 52 to limit the sliding direction of the pressure plate 1 52 and ensure the stability of the shielding function of the stop block 57 on the air outlet 56. The pressure plate 52, which is slidably installed inside the valve cover 51, slides up and down with changes in operating conditions such as gas flow rate to adjust the gas flow state. Three baffles 57 are provided on the pressure plate 52, which correspond to three gas outlets 56 respectively. By sliding, the degree of obstruction of the gas outlets 56 is changed, thereby controlling the amount and speed of gas flowing out of the gas outlets 56. The guide post 53, which is connected to the top of the pressure plate 52 and slides through the middle of the valve cover 51, serves to guide and divert the gas phase. Several air holes 54 are opened on its outer wall, and the gas phase can flow out from the air holes 54 to achieve gas phase diversion. The pressure plate 55, located on top of the guide post 53, is used to shield the top of the valve cover 51. When the gas flow rate is small, the pressure plate 55 fits against the top of the valve cover 51, restricting the gas flow from the top and forcing the gas to flow out through reasonable channels such as the outlet 56 and the air hole 54, thus optimizing the gas-liquid contact. When the gas flow rate is large, the pressure plate 55 is lifted up to assist in the discharge of the gas, adapting to different working conditions. The outer wall of the valve cover 51 has three air outlets 56; three baffles 57 are respectively set on the pressure plate 52 and are used to block the three air outlets 56 respectively. They can slide with the pressure plate 52 to block or open the air outlets 56. In conjunction with the pressure plate 52, the flow of gas phase from the air outlets 56 is dynamically adjusted to realize gas phase diversion control and allow the gas phase to enter the liquid phase in a more reasonable form. In this embodiment, the gas phase enters the float valve 5 through the through hole 4 of the disc body 1, pushing the pressure plate 1 52, guide column 53, pressure plate 2 55, and other components to move. When pressure plate 1 52 slides, the stop block 57 slides within the limiting groove 8, adjusting the opening of the gas outlet 56. At the same time, the gas phase can flow out from the air hole 54 of the guide column 53, and be dispersed by the guide plate 7, ultimately dispersing the gas phase in the form of fine and uniform bubbles in the liquid phase, increasing the gas-liquid contact area. Specifically, refer to Figure 2-4 The guide plate 7 is mounted on the valve cover 51 via two support legs 6. The edge has an arc-shaped sawtooth structure. After the gas phase impacts the guide plate 7, part of it first completes gas-liquid mass transfer. The arc-shaped sawtooth structure further disperses the gas phase evenly, allowing the gas and liquid phases to contact more fully and significantly improving the mass transfer and separation efficiency. For example, when the gas phase impacts the arc-shaped sawtooth, it is cut into smaller bubbles, increasing the contact interface with the liquid phase and promoting mass transfer.

[0015] Working principle When the tray is working, the liquid phase flows into the tray body 1 from the upper downcomer 3 and is evenly distributed on the tray body 1 under the guidance of the active zone baffle 2; the gas phase rises from the lower tray and enters the float valve 5 through the through hole 4 of the tray body 1. After the gas phase enters the float valve 5, it pushes the pressure plate 52 to move upward, and the baffle 57 moves upward accordingly, opening the gas outlet 56. At the same time, the gas phase can also flow out from the air hole 54 of the guide column 53. The outflowing gas phase impacts the guide plate 7. Utilizing the arc-shaped sawtooth structure of the guide plate 7, a portion of the gas phase first completes the initial gas-liquid mass transfer, while the other portion is further cut and dispersed into finer and more uniform bubbles by the arc-shaped sawtooth. These bubbles are dispersed in the liquid phase, greatly increasing the gas-liquid contact area. As the gas flow rate changes, components such as pressure plate 1 52 and pressure plate 2 55 dynamically adjust their positions to continuously optimize the gas flow channel and state, ensuring that the gas and liquid can still fully contact and efficiently transfer mass even under conditions of small gas phase and large liquid phase. For example, when the gas flow rate increases, pressure plate 2 55 is lifted to assist in the gas phase discharge, while baffle 57 further opens the gas outlet 56, and the vent 54 also fully participates in the gas phase diversion, maintaining a good gas-liquid contact state; when the gas flow rate decreases, the components move in opposite directions to restrict inappropriate gas phase outflow and ensure the gas-liquid contact effect.

[0016] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small vapor large liquid high efficiency tray characterized in that, Includes a disc body (1); the top of the disc body (1) is provided with two active area baffles (2), and the outer wall of the disc body (1) is provided with a downcomer (3); The top of the disc body (1) has several through holes (4), and each through hole (4) is equipped with a float valve (5). The floating valve component (5) includes a valve cover (51) mounted on a through hole (4); a pressure plate (52) slidably disposed inside the valve cover (51); a guide post (53) connected to the top of the pressure plate (52) and slidably passing through the middle of the valve cover (51), the outer wall of the guide post (53) having several air holes (54); a pressure plate (55) disposed on the top of the guide post (53), the pressure plate (55) being used to shield the top of the valve cover (51); three air outlets (56) being disposed on the outer wall of the valve cover (51); and three blocks (57) respectively disposed on the pressure plate (52) and respectively used to shield the three air outlets (56). The valve cover (51) is provided with guide plates (7) via two support legs (6).

2. The small gas big liquid high efficiency tray according to claim 1, wherein, The edge of the guide plate (7) has an arc-shaped sawtooth structure.

3. The small gas big liquid high efficiency tray according to claim 1, wherein, A limiting groove (8) is provided inside the air outlet (56); a slider (9) that can slide in the limiting groove (8) is provided on the outer wall of the pressure plate (52).

4. The small gas big liquid high efficiency tray according to claim 2, wherein, The number of pores (54) is equal to the number of arc-shaped sawtooth structures on the guide plate (7) and their relative positions are intersecting.

5. The high-efficiency tray with small gas phase and large liquid phase according to claim 1, characterized in that, The valve cover (51) has a receiving groove (10) on its top for receiving the pressure plate (55).

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