Efficient double-layer three-dimensional tower tray

Abstract

The utility model relates to a high-efficiency double-layer three-dimensional tower tray which comprises a tower body, a plurality of horizontal tower plates are arranged on the inner wall of the tower body from top to bottom in a staggered manner, one end of each horizontal tower plate is connected with a liquid receiving tray, the liquid receiving trays are fixed on the inner wall of the tower body, the other end of each horizontal tower plate is fixedly provided with a downcomer, and a vertical downcomer channel is formed between each downcomer plate and the inner wall of the tower body. A plurality of gas lifting holes are formed in the horizontal tower plate, and a separation cover is correspondingly fixed above each gas lifting hole; the separation cover comprises a first vertical plate, a second vertical plate, two inner separation plates and a top plate, bottom gaps are formed between the two inner separation plates and the horizontal tower plate, gaps are formed between the two inner separation plates and the top plate, outer separation plates are arranged on the two sides of the bottom of the top plate, and the top plate and the two outer separation plates are of a door-shaped structure; and separation holes are formed in the upper end of the first vertical plate, the upper ends of the two inner separation plates and the outer separation plate. The utility model has the advantages of low energy consumption, large handling capacity, high separation efficiency, long service life and low accident rate.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical separation equipment, in particular to a high-efficiency double-layer three-dimensional tower tray. Background Art

[0002] In the fields of petrochemicals, fine chemicals, coal chemicals, environmental protection, new materials, etc., tower equipment is a very important unit operation equipment. Through the full contact between the gas phase and the liquid phase, the mass transfer and heat transfer between the two phases are completed, thereby realizing the separation of substances. The tower internals are the key components for the tower equipment to realize the separation function. The performance of the tower internals will not only affect the quality of the product, but also affect the economic benefits, energy consumption, and output.

[0003] With the advancement of science and technology, the requirements for product purity, quality, energy consumption in the production process, and environmental protection are increasing, so the demand for chemical separation equipment is also increasing. In the past, plate tower internals had problems such as high energy consumption, low separation efficiency, short service life, and high accident rate. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provide a high-efficiency double-layer three-dimensional tower tray.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A high-efficiency double-layer three-dimensional tower tray comprises a tower body, the inner wall of which is staggered from top to bottom with a plurality of horizontal tower plates, one end of the horizontal tower plate is connected to a liquid receiving tray, the liquid receiving tray is fixed on the inner wall of the tower body, a liquid downcomer is fixed on the other end of the horizontal tower plate, a vertical liquid downcomer channel is formed between the liquid downcomer and the inner wall of the tower body, a plurality of air riser holes are opened on the horizontal tower plate, and a separation hood is correspondingly fixed above each air riser hole;

[0007] The separation hood includes a first vertical plate and a second vertical plate vertically fixed on the horizontal tower plate, the first vertical plate and the second vertical plate are respectively arranged on the left and right sides of the rising air hole, a top plate is fixed on the top of the first vertical plate and the second vertical plate, two inner separation plates are arranged between the first vertical plate and the second vertical plate, the two inner separation plates are respectively located on the front and back sides of the rising air hole, a gap is arranged between the tops of the two inner separation plates and the top plate, a bottom gap is arranged between the bottoms of the two inner separation plates and the horizontal tower plate, outer separation plates are arranged on both sides of the bottom of the top plate, the top plate and the two outer separation plates are a gate-shaped structure, the outer separation plate is arranged parallel to the inner separation plate, and separation holes are opened on the upper end of the first vertical plate, the upper ends of the two inner separation plates and the two outer separation plates.

[0008] A first supporting foot plate is provided at the bottom of the first vertical plate, which is welded or bolted to the horizontal tower plate, and the first vertical plate and the first supporting foot plate are an L-shaped structure; a second supporting foot plate is provided at the bottom of the second vertical plate, which is welded or bolted to the horizontal tower plate, and the second vertical plate and the second supporting foot plate are an L-shaped structure.

[0009] The beneficial effects of the utility model are: low energy consumption, large processing capacity, high separation efficiency, long service life and low accident rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the utility model;

[0011] Figure 2 It is a top view of the utility model;

[0012] Figure 3 It is a schematic diagram of the structure of the separation cover on the horizontal tower plate;

[0013] In the figure: 1-tower body; 2-horizontal tower plate; 3-downcomer plate; 4-downcomer channel; 5-air riser hole; 6-separation cover; 7-liquid receiving tray;

[0014] 61-first vertical plate; 62-inner separation plate; 63-bottom gap; 64-top plate; 65-outer separation plate; 66-separation hole; 67-first support plate; 68-second vertical plate; 69-second support plate;

[0015] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0017] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] A high-efficiency double-layer three-dimensional tower tray, such as Figure 1 to Figure 2 As shown, it includes a tower body 1, a horizontal tower plate 2, a downcomer plate 3, a downcomer channel 4, an air riser 5, a separation cover 6, and a liquid receiving tray 7.

[0021] The inner wall of the tower body 1 is staggered with a number of horizontal tower plates 2 from top to bottom. In the present embodiment, the number of the horizontal tower plates 2 is two, forming a double-layer tower plate. One end of the horizontal tower plate 2 is connected to a liquid receiving plate 7, which is fixed on the inner wall of the tower body 1. A liquid downcomer 3 is fixed on the other end of the horizontal tower plate 2. A vertical liquid downcomer channel 4 is formed between the liquid downcomer 3 and the inner wall of the tower body 1. A number of air risers 5 are provided on the horizontal tower plate 2. The number of the air risers 5 is determined according to actual conditions. A separation hood 6 is fixed above each air riser 5.

[0022] Separation cover 6 Figure 3 As shown, it includes a first vertical plate 61 and a second vertical plate 68 vertically fixed on the horizontal tower plate 2, the first vertical plate 61 and the second vertical plate 68 are respectively arranged on the left and right sides of the ascending hole 5, a top plate 64 is fixed on the top of the first vertical plate 61 and the second vertical plate 68, two inner separation plates 62 are arranged between the first vertical plate 61 and the second vertical plate 68, the two inner separation plates 62 are respectively located on the front and rear sides of the ascending hole 5, a gap is provided between the tops of the two inner separation plates 62 and the top plate 64, a bottom gap 63 is provided between the bottoms of the two inner separation plates 62 and the horizontal tower plate 2, outer separation plates 65 are provided on both sides of the bottom of the top plate 64, the top plate 64 and the two outer separation plates 65 are a gate-shaped structure, the outer separation plate 65 is arranged parallel to the inner separation plate 62, and separation holes 66 are opened on the upper end of the first vertical plate 61, the upper ends of the two inner separation plates 62 and the two outer separation plates 65.

[0023] The first vertical plate 61 and the second vertical plate 68 are rectangular structures or trapezoidal structures; the inner separation plate 62 is a rectangular structure; the first vertical plate 61, the second vertical plate 68 and the two inner separation plates 62 form a rectangular body structure or a trapezoidal body structure.

[0024] The top plate 64 and the inner separation plate 62 form an angle of 90-150°.

[0025] The top plate 64 and the outer separation plate 65 form an angle of 90-150°.

[0026] A first supporting foot plate 67 is provided at the bottom of the first vertical plate 61, and the first supporting foot plate 67 is welded or bolted to the horizontal tower plate 2, and the first vertical plate 61 and the first supporting foot plate 67 are L-shaped structures; a second supporting foot plate 69 is provided at the bottom of the second vertical plate 68, and the second supporting foot plate 69 is welded or bolted to the horizontal tower plate 2, and the second vertical plate 68 and the second supporting foot plate 69 are L-shaped structures.

[0027] The height of the gap between the top plate 64 and the inner separation plate 62 is 1-30 mm, and the height of the bottom gap 63 between the inner separation plate 62 and the horizontal tower plate 2 is 1-30 mm.

[0028] The diameter of the separation hole 66 is 1-20 mm.

[0029] The distance between the outer separation plate 65 and the inner separation plate 62 on the same side is 5-200 mm.

[0030] The air riser 5 is a rectangular structure.

[0031] The first vertical plate 61 is disposed facing the downcomer channel 4 or facing away from the downcomer channel 4 .

[0032] The working principle of the utility model is as follows:

[0033] Due to gravity, the liquid passes through the downcomer channel 4 to the horizontal tower plate 2, and then enters the separation cover 6 through the bottom gap 63 on the upper surface of the horizontal tower plate 2. The gas enters the separation cover 6 through the gas lifting hole 5. The liquid entering the separation cover 6 blows the liquid layer on the horizontal tower plate 2 under the pulling action of the gas, and is pulled into a liquid film. The liquid film rises and impacts the top plate 64. After the impact, the gas returns and sprays out from the separation holes 66 of the vertical plate 61 and the side plate 62 of the separation cover 6. At the same time, the liquid film is broken into fine droplets and returns to the horizontal tower plate 2. The gas continues to rise. At this time, the first gas-liquid mass transfer and separation are completed; the rising gas after separation still carries some droplets. When the gas collides with the top plate 64, the droplets entrained by the gas are intercepted by the top plate 64 and fall back to the horizontal tower plate 2. The gas sprays out the separation holes 66 on the outer baffle 65 and is separated by gravity and inertia. At this time, the second gas-liquid mass transfer and separation are completed.

[0034] The advantages of the utility model are:

[0035] 1 Compared with other floating valve trays, this tray is a welded fixture, does not contain wearing parts, has a long service life, and low wear and tear, which makes the gas-liquid mass transfer effect stable. Ordinary floating valve trays will continue to wear during production and use, causing the plate holes to become larger and affecting the mass transfer effect.

[0036] 2 Compared with ordinary trays, this tray has good anti-clogging performance for systems containing dust particles, easy to coke, and easy to clog. It is particularly suitable for distillation conditions with large gas volume, small liquid volume and high separation accuracy.

[0037] On the basis of the traditional three-dimensional tower tray, the tower tray newly adds separation holes 66 on the outer separation plate 65, so that the gas-liquid two-phase can complete the primary mass transfer at the separation holes 66 of the first vertical plate 61 and the inner separation plate 62, and then realize the secondary mass transfer at the separation holes 66 of the outer separation plate 65, which greatly improves the working efficiency.

[0038] 4 Compared with ordinary tower plates, this tower plate provides a large and constantly updated contact surface area for the gas-liquid two phases, which strengthens the mass transfer process; and the gas-liquid two phases are sprayed out horizontally, and the initial velocity of the droplets in the vertical direction is zero, which reduces the entrainment of mist and foam, and obtains a higher tower plate efficiency and a larger production capacity.

[0039] 5 The traditional plate tower often uses a floating valve tray, which has many square or round holes on the tray, each hole has a valve plate, and the gas lifts the valve plate upward through the valve hole and shoots out horizontally. In this process, the liquid range of the tray is generally high, and the pressure that the gas needs to overcome is relatively large, which makes the pressure drop of the floating valve tower relatively large. However, the liquid range of this tray in the gas-liquid mass transfer process is lower than that of the floating valve tray, so the pressure that the gas needs to overcome becomes smaller, which significantly reduces the pressure drop of the floating valve tower.

[0040] 6As people's demand for energy conservation and emission reduction grows, energy conservation has become the development direction of three-dimensional trays. This tray can operate under the condition that the liquid phase is the dispersed phase and the gas phase is the continuous phase, which greatly increases the mass transfer area of ​​the tray, and no gas will pass through the liquid layer above the tray, and the pressure drop is significantly reduced.

[0041] 7. This tower tray has a wide range of applications, is simple to make, easy to install and easy to modify.

[0042] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A high-efficiency double-layer three-dimensional tray, It is characterized in that The tower body (1) comprises a tower body (1), wherein the inner wall of the tower body (1) is staggeredly arranged with a plurality of horizontal tower plates (2) from top to bottom, one end of the horizontal tower plate (2) is connected to a liquid receiving plate (7), the liquid receiving plate (7) is fixed on the inner wall of the tower body (1), a liquid downcomer (3) is fixed on the other end of the horizontal tower plate (2), a vertical liquid downcomer channel (4) is formed between the liquid downcomer (3) and the inner wall of the tower body (1), a plurality of air riser holes (5) are opened on the horizontal tower plate (2), and a separation cover (6) is correspondingly fixed above each air riser hole (5); The separation cover (6) comprises a first vertical plate (61) and a second vertical plate (68) which are vertically fixed on the horizontal tower plate (2). The first vertical plate (61) and the second vertical plate (68) are respectively arranged on the left and right sides of the ascending air hole (5). A top plate (64) is fixed on the top of the first vertical plate (61) and the second vertical plate (68). Two inner separation plates (62) are arranged between the first vertical plate (61) and the second vertical plate (68). The two inner separation plates (62) are respectively located on the front and rear sides of the ascending air hole (5). A gap is provided between the top of the vertical plate (62) and the top plate (64), a bottom gap (63) is provided between the bottom of the two inner separation plates (62) and the horizontal tower plate (2), outer separation plates (65) are provided on both sides of the bottom of the top plate (64), the top plate (64) and the two outer separation plates (65) are in a gate-shaped structure, the outer separation plates (65) are arranged parallel to the inner separation plates (62), and separation holes (66) are provided on the upper end of the first vertical plate (61), the upper ends of the two inner separation plates (62) and the two outer separation plates (65).

2. A high-efficiency double-layer three-dimensional tower tray according to claim 1, It is characterized in that The first vertical plate (61) and the second vertical plate (68) are rectangular structures or trapezoidal structures; the inner separation plate (62) is a rectangular structure; the first vertical plate (61), the second vertical plate (68) and the two inner separation plates (62) form a rectangular body structure or a trapezoidal body structure.

3. A high-efficiency double-layer three-dimensional tower tray according to claim 2, It is characterized in that The top plate (64) and the inner separation plate (62) form an angle of 90-150 degrees.

4. A high-efficiency double-layer three-dimensional tower tray according to claim 3, It is characterized in that The top plate (64) and the outer separation plate (65) form an angle of 90-150°.

5. A high-efficiency double-layer three-dimensional tower tray according to claim 4, It is characterized in that A first support plate (67) is provided at the bottom of the first vertical plate (61), the first support plate (67) is welded or bolted to the horizontal tower plate (2), and the first vertical plate (61) and the first support plate (67) are an L-shaped structure; a second support plate (69) is provided at the bottom of the second vertical plate (68), the second support plate (69) is welded or bolted to the horizontal tower plate (2), and the second vertical plate (68) and the second support plate (69) are an L-shaped structure.

6. A high-efficiency double-layer three-dimensional tower tray according to claim 5, It is characterized in that The height of the gap between the top plate (64) and the inner separation plate (62) is 1-30 mm, and the height of the bottom gap (63) between the inner separation plate (62) and the horizontal tower plate (2) is 1-30 mm.

7. A high-efficiency double-layer three-dimensional tower tray according to claim 6, It is characterized in that The diameter of the separation hole (66) is 1-20 mm.

8. A high-efficiency double-layer three-dimensional tower tray according to claim 7, It is characterized in that The distance between the outer separation plate (65) and the inner separation plate (62) on the same side is 5-200 mm.

9. A high-efficiency double-layer three-dimensional tower tray according to claim 8, It is characterized in that The air riser (5) is a rectangular structure.

10. A high-efficiency double-layer three-dimensional tower tray according to claim 9, It is characterized in that The first vertical plate (61) is arranged facing the downcomer channel (4) or facing away from the downcomer channel (4).

Images