CN209797534U

CN209797534U - tower tray for ammonia still

Info

Publication number: CN209797534U
Application number: CN201920450571.3U
Authority: CN
Inventors: 黄瀛州; 张晓英; 刘勇刚; 韩忠瑞; 黄洁; 焦勇; 夏莹
Original assignee: Tianjin Bolong Separation Column New Technology & Development Co Ltd
Current assignee: Tianjin Bolong Separation Column New Technology & Development Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2019-12-17
Anticipated expiration: 2029-04-04

Abstract

The utility model discloses a tower tray for ammonia still, comprising a base plate, the top welding of bottom plate has first body, and the plate body of the bottom plate of first body bottom is the through-hole structure, the top welding of the circumference wall body of first body has the shunt tubes that four symmetries were arranged, the shunt tubes is the font structure of falling L, the common welding of one end of shunt tubes has annular gas distribution pipe, and first body is located the gas distribution pipe, a plurality of exhaust holes of evenly arranging are seted up on the top of gas distribution pipe, the top integrated into one piece of first body has the second body, the top welding of second body has the circular shape closing plate, the top of second body is rotated through the bearing and is installed the turning block, the top welding of turning block has the cover, closing plate and gas distribution pipe all are located the cover. The utility model relates to a rational in infrastructure, easy operation, convenient to use can improve conversion efficiency, is higher than traditional single plate-type efficiency.

Description

tower tray for ammonia still

Technical Field

The utility model relates to an ammonia still technical field especially relates to an ammonia still is tower tray for tower.

Background

The ammonia still belongs to the desorption tower, is an operation device which volatilizes and releases ammonia dissolved in circulating water through heat transfer of a heat carrier, and has the working principle that: the method adopts general heat carrier steam as a heating agent, so that the equilibrium steam pressure of ammonia on the liquid level of circulating water is greater than the partial pressure of ammonia in a heat carrier, and the vapor-liquid two phases are in countercurrent contact to carry out mass transfer and heat transfer, so that the ammonia is gradually released from the circulating water, a mixture of the ammonia steam and the steam is obtained at the tower top, and purer circulating water is obtained at the tower bottom. In general, the purpose of the alkali source is to convert the fixed ammonium salt into a volatile ammonium salt.

When the gas is from bottom to top, the liquid is contacted with and transferred from top to bottom, in order to make the gas and liquid fully contact, improve the contact surface and increase the transfer effect (for example, the liquid absorbs a certain component in the gas), a plurality of tower plates are arranged in the vertical tower, the gas and liquid are separated after fully contacting in the tower plates, the next time, the mass transfer separation is carried out in the next tower plate, and the action for a plurality of times is carried out, so that the absorption of the maximum efficiency of the liquid can be achieved;

The existing tray is only a disc-shaped structure with a plurality of small holes, but the tray has low material exchange rate when in use, and the exchange efficiency of gas-liquid passing through the small holes is low, so that the gas-liquid can not be fully contacted.

Disclosure of Invention

The utility model aims at solving the defect of low gas-liquid contact efficiency of the existing tower tray and providing the tower tray for the ammonia still.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a tower tray for ammonia still, includes the bottom plate, the top welding of bottom plate has first body, and the plate body of the bottom plate of first body bottom is the through-hole structure, the top welding of the circumference wall body of first body has four symmetry shunt tubes of arranging, the shunt tubes is the font structure of falling L, the common welding of one end of shunt tubes has annular gas distribution pipe, and first body is located the gas distribution pipe, a plurality of exhaust holes of evenly arranging are seted up on the top of gas distribution pipe, the top integrated into one piece of first body has the second body, the top welding of second body has circular shape closing plate.

Preferably, the top end of the second pipe body is rotatably provided with a rotating block through a bearing, the top end of the rotating block is welded with a cover, the sealing plate and the gas distribution pipe are both positioned in the cover, and the bottom end of the cover and the top end of the bottom plate are spaced by 2-3 CM.

Preferably, the sealing ring is bonded to the circumferential side wall of the sealing plate and is in sliding contact with the inner wall of the cover, a plurality of overflow holes are formed in the circumferential wall body of the first pipe body, and the overflow holes are located between the horizontal portions of the gas distribution pipe and the flow distribution pipe.

Preferably, a plurality of stirring rods are welded at the bottom end of the circumferential outer wall of the cover.

Preferably, the connecting rods are welded at the middle parts of the bottom ends of the rotating blocks and the outer wall of the top end of the cover, one ends of the connecting rods of the rotating blocks penetrate through the bottom plate and extend to the lower part of the bottom plate, and the bottom ends of the second pipe bodies and the connecting rods are hermetically mounted through bearing covers.

The utility model has the advantages that: the tower tray can disperse gas, and the gas distributing pipe is provided with a plurality of vent holes, so that a plurality of bubbles are generated in the gas, the gas is fully contacted with liquid, and the cover can rotate, so that the stirring rod is driven to rotate, the stirring function is realized, the liquid is mixed, and the conversion efficiency is improved;

This project organization is reasonable, easy operation, and convenient to use can improve conversion efficiency, is higher than traditional single plate-type efficiency.

Drawings

FIG. 1 is a schematic sectional view of a tray for an ammonia still according to the present invention;

FIG. 2 is a schematic view of a first tube of a tower tray for an ammonia still according to the present invention;

FIG. 3 is a schematic view of the installation structure of a tower tray for an ammonia still and an ammonia still provided by the present invention.

in the figure: the stirring device comprises a base plate 1, a stirring rod 2, a cover 3, a flow dividing pipe 4, a sealing plate 5, a rotating block 6, a second pipe 7, a first pipe 8, an overflow hole 9, a gas dividing pipe 10 and a connecting rod 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a tower tray for ammonia still, including bottom plate 1, the welding of the top of bottom plate 1 has first body 8, the plate body of bottom plate 1 of 8 bottoms of first body is the through-hole structure, the welding of the top of the circumference wall body of first body 8 has four shunt tubes 4 that the symmetry was arranged, shunt tubes 4 are the structure of falling L font, the common welding of one end of shunt tubes 4 has annular gas distribution pipe 10, first body 8 is located gas distribution pipe 10, a plurality of exhaust holes of evenly arranging are seted up on gas distribution pipe 10's top, the top integrated into one piece of first body 8 has second body 7, the welding of the top of second body 7 has circular shape closing plate 5.

In this embodiment, the top end of the second tube 7 is rotatably mounted with a rotating block 6 through a bearing, the top end of the rotating block 6 is welded with the cover 3, the sealing plate 5 and the gas distribution tube 10 are both located in the cover 3, the bottom end of the cover 3 and the top end of the bottom plate 1 have an interval of 2CM to 3CM, the circumferential side wall of the sealing plate 5 is bonded with a sealing ring, and the inner wall sliding contact of sealing washer and cover 3, a plurality of overflow holes 9 have been seted up to the circumference wall body of first body 8, overflow hole 9 is located between the horizontal position of gas-distributing pipe 10 and shunt tubes 4, the welding of the circumference outer wall bottom of cover 3 has a plurality of puddlers 2, connecting rod 11 has all been welded to the top outer wall middle part of 6 bottoms of turning block and cover 3, the one end of connecting rod 11 of turning block 6 is passed bottom plate 1 and is extended to the below of bottom plate 1, the bottom of second body 7 and connecting rod 11 pass through bearing cap seal installation.

The working principle is as follows: as shown in figure 1, a plurality of trays can be sequentially arranged in a superposition way, the aligned connecting rods 11 are connected with each other, the connecting rod 11 at the top of the ammonia still is connected with an external motor, so that the motor drives the hoods 3 on the plurality of trays in a straight line to rotate, stirring is carried out, gas is injected from the bottom of the ammonia still to sequentially rise, liquid is injected from the top of the ammonia still to sequentially fall, the flow rate of the liquid is ensured to be proper, the liquid level on the bottom plate 1 just passes through the overflow hole 9, the liquid enters the hoods 3 and flows to the next stage from the overflow hole 9, the gas enters the flow dividing pipe 4 from the first pipe body 8 and then enters the gas dividing pipe 10 and is discharged from the exhaust hole to be fully contacted with the liquid, the liquid only flows out from the overflow hole 9 because the overflow hole is higher than the other end of the flow dividing pipe 4, and the gas only enters the flow dividing pipe 4 because of the obstruction of the liquid, and the gas can be discharged from the gas distribution pipe 10, and the sealing plate 5 and the second pipe body 7 are both subjected to sealing treatment so as to protect the bearing and avoid damage.

the above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a tower tray for ammonia still, includes bottom plate (1), its characterized in that, the top welding of bottom plate (1) has first body (8), and the plate body of bottom plate (1) of first body (8) bottom is the through-hole structure, the top welding of the circumference wall body of first body (8) has shunt tubes (4) that four symmetries were arranged, shunt tubes (4) are for falling L font structure, the common welding of the one end of shunt tubes (4) has annular gas distribution pipe (10), and first body (8) are located gas distribution pipe (10), a plurality of exhaust holes of evenly arranging are seted up on the top of gas distribution pipe (10), the top integrated into one piece of first body (8) has second body (7), the top welding of second body (7) has circular shape closing plate (5).

2. Tray for ammonia still according to claim 1, characterized in that the top of the second tube (7) is rotatably mounted with a rotating block (6) through a bearing, the top of the rotating block (6) is welded with a cover (3), the sealing plate (5) and the gas distributing pipe (10) are both located in the cover (3), and the bottom of the cover (3) is spaced from the top of the bottom plate (1) by 2CM to 3 CM.

3. the tray as set forth in claim 2, wherein the sealing plate (5) has a sealing ring adhered to its circumferential side wall and slidably contacting the inner wall of the cover (3), and the first tube (8) has a plurality of overflow holes (9) formed in its circumferential wall, the overflow holes (9) being located between the gas distribution tube (10) and the horizontal portions of the flow distribution tube (4).

4. Tray for an ammonia still according to claim 2, characterized in that said hood (3) has a plurality of stirring rods (2) welded to the bottom end of the peripheral outer wall.

5. The tray for the ammonia still as claimed in claim 2, wherein the connecting rods (11) are welded at the middle parts of the bottom ends of the rotating blocks (6) and the outer wall of the top end of the cover (3), one end of each connecting rod (11) of each rotating block (6) passes through the bottom plate (1) and extends to the lower part of the bottom plate (1), and the bottom ends of the second pipe bodies (7) and the connecting rods (11) are hermetically installed through bearing covers.