CN210434538U

CN210434538U - Downcomer of float valve type chlorination tower

Info

Publication number: CN210434538U
Application number: CN201921222326.3U
Authority: CN
Inventors: 陈永贵; 过学军; 黄中桂; 袁晓林; 朱凯明; 杨镭; 魏学岭; 李芳�
Original assignee: Anhui Dongzhi Guangxin Agrochemical Co Ltd
Current assignee: Anhui Dongzhi Guangxin Agrochemical Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-01
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a downcomer of a float valve type chlorination tower, which comprises a downcomer body, wherein the downcomer body is fixedly arranged on a tower plate, a plurality of float valves which are uniformly distributed are arranged on the upper end surface of the tower plate, an overflow weir is arranged between the downcomer body and the float valves, and an auxiliary downcomer is arranged on the right side of the downcomer body. The long-term impact on the lower tower plate causes the service life of the tower plate to be reduced.

Description

Downcomer of float valve type chlorination tower

Technical Field

The utility model relates to a float valve formula chlorination tower technical field specifically is downcomer of float valve formula chlorination tower.

Background

The float valve type chlorination tower is a chlorination tower which adopts float valve type tower plates to perform chlorination processing and is characterized in that a valve plate which can move up and down is arranged at each sieve pore. When the air speed of the sieve pore is high, the valve plate is jacked up and rises, when the air speed is low, the valve plate falls due to the self weight, and the lifting position of the valve plate is automatically adjusted along with the size of the air flow, so that the air speed entering the liquid layer is basically stable.

The downcomer that is used for floating valve formula chlorination tower at present is when carrying out liquid phase water conservancy diversion, often appears under the high liquid velocity of flow, if under pressurization distillation and absorption condition, the downcomer flow is not enough, and the condition of downcomer overflow takes place, and the downcomer velocity of flow is too high, strikes for a long time to the column tray below for the life of column plate reduces.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a downcomer of float valve formula chlorination tower to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the downcomer of the float valve type chlorination tower comprises a downcomer body, wherein the downcomer body is fixedly installed on a tower plate, a plurality of uniformly distributed float valves are arranged on the upper end face of the tower plate, an overflow weir is arranged between the downcomer body and the float valves, and an auxiliary downcomer is arranged on the right side of the downcomer body.

Preferably, the downcomer body comprises a first pipe body, the first pipe body is fixedly mounted on the column plate, a flow expansion part is arranged at the lower end of the first pipe body, a flow diffusion cover is arranged below the flow expansion part, a mounting column is arranged at the bottom of the inner wall of the flow diffusion cover, the mounting column is inserted in the flow expansion part, and the mounting column is fixedly connected with the inner side wall of the flow expansion part through a plurality of symmetrically distributed mounting columns.

Preferably, a plurality of liquid outlet pipes which are uniformly distributed in a surrounding mode are fixedly installed at the bottom of the flow dispersing cover, and a plurality of flow dispersing holes which are uniformly distributed in a surrounding mode are formed in the outer side wall of the flow dispersing cover.

Preferably, the auxiliary downcomer comprises a second pipe body, a first overflow cover is arranged on the outer side of the second pipe body, a plurality of symmetrically distributed first connecting rods are arranged between the inner side wall of the first overflow cover and the second pipe body, a second overflow cover is arranged on the outer side of the first overflow cover, and a plurality of symmetrically distributed second connecting rods are arranged between the inner side wall of the second overflow cover and the first overflow cover.

Preferably, the outer side wall and the bottom of the first overflow cover are provided with a plurality of first clean discharge holes which are uniformly distributed, the outer side wall and the bottom of the second overflow cover are provided with a plurality of second clean discharge holes which are uniformly distributed, a plurality of flow dividing resistance plates are fixedly mounted on the upper end surface of the column plate, and the flow dividing resistance plates are located between the downcomer body and the auxiliary downcomer.

Preferably, a guide plate is fixedly installed on the upper end face of the tower plate, and a plurality of guide grooves which are uniformly distributed are formed in the upper end face of the guide plate.

Compared with the prior art, the beneficial effects of the utility model are that: the down-flow pipe of the float valve type chlorination tower is arranged by the down-flow pipe body and the auxiliary down-flow pipe to prevent the down-flow pipe from overflowing, thereby reducing the impact of the down-flow pipe on the lower tower plate and prolonging the service life of the tower plate, liquid phase fluid overflows to one side of the down-flow pipe body through the overflow weir, fluid with certain thickness is formed on the other side of the overflow weir and is used for fully contacting with gas phase sprayed out from the float valve, the liquid phase fluid descends through the first pipe body, the liquid phase fluid is arranged by the flow expanding part and the flow dispersing cover, so that the liquid is guided to flow through the inner side wall of the flow dispersing cover, and simultaneously flows through the liquid outlet pipe and the flow dispersing hole, thereby improving the flow dispersing efficiency, reducing the impact force on the lower tower plate, under high liquid flow speed, the flow at the down-flow pipe body is insufficient, when the liquid height is higher than the flow dividing resistance plate, the liquid flows into, the liquid in the first overflow cover and the second overflow cover can be drained completely when the liquid flow rate is reduced, the guide plate on the lower column plate corresponds to the positions of the downcomer body and the auxiliary downcomer on the upper column plate, and the scattered liquid is guided into the lower column plate through the guide groove and is matched with the overflow weir to form a liquid layer with a certain height to be fully contacted with a gas phase. The utility model discloses a downcomer of float valve formula chlorination tower, through setting up the effluence cover, vice downcomer and reposition of redundant personnel baffler etc, it leads to the overflow to have reached to avoid the downcomer flow not enough, reduce the impact force that the below column plate receives, improve column plate life's effect, the downcomer that has been used for float valve formula chlorination tower at present has been solved when carrying out the liquid phase water conservancy diversion, often appear under the high liquid velocity of flow, if under pressurization distillation and absorption condition, the downcomer flow is not enough, the condition of downcomer overflow takes place, and the downcomer velocity of flow is too high, long-term impact to below column plate, make the problem that the life of column plate reduces.

Drawings

FIG. 1 is a schematic structural diagram of a downcomer of a float valve type chlorination column;

FIG. 2 is a schematic structural diagram of a downcomer body in a downcomer of a float valve type chlorination column;

FIG. 3 is a schematic structural diagram of a secondary downcomer in a downcomer of a float valve type chlorination column.

In the figure: 1-downcomer body, 2-tower plate, 3-floating valve, 4-overflow weir, 5-guide plate, 6-guide groove, 7-flow dividing baffle plate, 8-auxiliary downcomer, 9-first pipe body, 10-flow dividing part, 11-mounting column, 12-fixing rod, 13-flow dividing cover, 14-liquid outlet pipe, 15-flow dividing hole, 16-second pipe body, 17-first overflow cover, 18-first connecting rod, 19-second overflow cover, 20-second connecting rod, 21-first discharge hole and 22-second discharge hole.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the downcomer of the float valve type chlorination tower comprises a downcomer body 1, wherein the downcomer body 1 is fixedly installed on a tower plate 2, a plurality of float valves 3 which are uniformly distributed are arranged on the upper end face of the tower plate 2, an overflow weir 4 is arranged between the downcomer body 1 and the float valves 3, and an auxiliary downcomer 8 is arranged on the right side of the downcomer body 1.

Through the arrangement of the downcomer body 1 and the auxiliary downcomer 8, the downcomer is prevented from overflowing, the impact of the downcomer on a lower tower plate is reduced, and the service life of the tower plate is prolonged.

The downcomer body 1 comprises a first pipe body 9, the first pipe body 9 is fixedly installed on the tower plate 2, a flow expansion portion 10 is arranged at the lower end of the first pipe body 9, a flow dispersion cover 13 is arranged below the flow expansion portion 10, an installation column 11 is arranged at the bottom of the inner wall of the flow dispersion cover 13, the installation column 11 is inserted into the flow expansion portion 10, and the installation column 11 is fixedly connected with the inner side wall of the flow expansion portion 10 through a plurality of symmetrically distributed installation columns 11.

A plurality of liquid outlet pipes 14 which are uniformly distributed in a surrounding manner are fixedly arranged at the bottom of the flow dispersing cover 13, and a plurality of flow dispersing holes 15 which are uniformly distributed in a surrounding manner are formed in the outer side wall of the flow dispersing cover 13.

Liquid phase fluid overflows to one side of the downcomer body 1 through the overflow weir 4, fluid with a certain thickness is formed in the liquid phase on the other side of the overflow weir 4 and is used for being fully contacted with the gas phase sprayed out of the floating valve 3, the liquid phase fluid descends through the first pipe body 9, and the flow expanding portion 10 and the flow dispersing cover 13 are arranged, so that the liquid is guided to flow dispersing through the inner side wall of the flow dispersing cover 13, and meanwhile, the liquid is dispersed through the liquid outlet pipe 14 and the flow dispersing holes 15, the flow dispersing efficiency is improved, and the impact force on a lower tower plate is reduced.

The secondary downcomer 8 comprises a second pipe body 16, a first overflow cover 17 is arranged on the outer side of the second pipe body 16, a plurality of symmetrically distributed first connecting rods 18 are arranged between the inner side wall of the first overflow cover 17 and the second pipe body 16, a second overflow cover 19 is arranged on the outer side of the first overflow cover 17, and a plurality of symmetrically distributed second connecting rods 20 are arranged between the inner side wall of the second overflow cover 19 and the first overflow cover 17.

The outer side wall and the bottom of the first overflow cover 17 are provided with a plurality of first clean discharge holes 21 which are uniformly distributed, the outer side wall and the bottom of the second overflow cover 19 are provided with a plurality of second clean discharge holes 22 which are uniformly distributed, a plurality of flow dividing resistance plates 7 are fixedly mounted on the upper end surface of the tower plate 2, and the flow dividing resistance plates 7 are located between the downcomer body 1 and the auxiliary downcomer 8.

Under the high liquid velocity of flow, the flow of downcomer body 1 department is not enough, and when liquid height was higher than reposition of redundant personnel baffler 7, liquid flowed in vice downcomer 8 department through reposition of redundant personnel baffler 7, overflowed through first overflow shroud 17 and second overflow shroud 19, shared the flow of downcomer body 1 department, through first row of clean hole 21 and second row of clean hole 22 for when the liquid velocity of flow descends, the liquid in first overflow shroud 17 and the inside of second overflow shroud 19 can the evacuation drain.

The upper end face of the tower plate 2 is fixedly provided with a guide plate 5, and the upper end face of the guide plate 6 is provided with a plurality of guide grooves 6 which are uniformly distributed.

The material guide plate 5 on the lower tower plate 2 corresponds to the positions of the downcomer body 1 and the auxiliary downcomer 8 of the upper tower plate 2, and the dispersed liquid is guided to the lower tower plate 2 through the guide groove 6 and is matched with the overflow weir 4 to form a liquid layer with a certain height to be fully contacted with a gas phase.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Downcomer of float valve formula chlorination tower, including downcomer body (1), its characterized in that: the downcomer body (1) is fixedly arranged on the tower plate (2), a plurality of floating valves (3) which are uniformly distributed are arranged on the upper end face of the tower plate (2), an overflow weir (4) is arranged between the downcomer body (1) and the floating valves (3), and an auxiliary downcomer (8) is arranged on the right side of the downcomer body (1).

2. The downcomer of a float valve chlorination column of claim 1, wherein: the downcomer body (1) comprises a first pipe body (9), the first pipe body (9) is fixedly installed on the tower plate (2), a flow expansion portion (10) is arranged at the lower end of the first pipe body (9), a flow dispersion cover (13) is arranged below the flow expansion portion (10), an installation column (11) is arranged at the bottom of the inner wall of the flow dispersion cover (13), the installation column (11) is inserted into the flow expansion portion (10), and the installation column (11) is fixedly connected with the inner side wall of the flow expansion portion (10) through a plurality of symmetrically distributed installation columns (11).

3. The downcomer of a float valve chlorination column of claim 2, wherein: the bottom fixed mounting of scattered flow cover (13) has drain pipe (14) that a plurality of evenly encircles the distribution, set up on the lateral wall of scattered flow cover (13) a plurality of evenly encircles scattered discharge orifice (15) that distribute.

4. The downcomer of a float valve chlorination column of claim 3, wherein: the auxiliary downcomer (8) comprises a second pipe body (16), a first overflow cover (17) is arranged on the outer side of the second pipe body (16), a plurality of symmetrically distributed first connecting rods (18) are arranged between the inner side wall of the first overflow cover (17) and the second pipe body (16), a second overflow cover (19) is arranged on the outer side of the first overflow cover (17), and a plurality of symmetrically distributed second connecting rods (20) are arranged between the inner side wall of the second overflow cover (19) and the first overflow cover (17).

5. The downcomer of a float valve chlorination column of claim 4, wherein: the outer side wall and the bottom of the first overflow cover (17) are provided with a plurality of uniformly distributed first row clean holes (21), the outer side wall and the bottom of the second overflow cover (19) are provided with a plurality of uniformly distributed second row clean holes (22), a plurality of flow dividing resistance plates (7) are fixedly mounted on the upper end face of the tower plate (2), and the flow dividing resistance plates (7) are located between the downcomer body (1) and the auxiliary downcomer (8).

6. The downcomer of a float valve chlorination column of claim 5, wherein: the upper end face of the tower plate (2) is fixedly provided with a guide plate (5), and the upper end face of the guide plate (5) is provided with a plurality of guide grooves (6) which are uniformly distributed.