CN220736255U

CN220736255U - F142b degassing tower

Info

Publication number: CN220736255U
Application number: CN202322073351.2U
Authority: CN
Inventors: 韦东; 冯志刚; 王峰杰; 奚琪
Original assignee: Ningxia Fufeng New Material Technology Co ltd
Current assignee: Ningxia Fufeng New Material Technology Co ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-04-09
Anticipated expiration: 2033-08-03

Abstract

The application discloses F142b degasser, in-service use, including degasser and degasser, the top of degasser is provided with the condenser, the degasser includes the tower body, well tower body and lower tower body, be provided with the distributor in the well tower body, well tower body is close to the top one side of distributor and is provided with the feed inlet, the below of distributor is provided with first gas-liquid separation subassembly, be provided with a plurality of second gas-liquid separation subassemblies in the lower tower body, the bottom of lower tower body sets up the head, lower tower body is close to the top one side of head and is provided with the drain, one side intercommunication of lower tower body is provided with the discharging pipe, the other end of discharging pipe is connected with one side of the bottom of degasser, be provided with the steam pipe between the top one side of degasser and the lower tower body, provide stable heat source in the degasser through the setting of degasser, evaporate impurity in F142b as early as possible in the degasser, improve purification efficiency.

Description

F142b degassing tower

Technical Field

The utility model relates to the technical field of chemical production, in particular to an F142b degassing tower.

Background

F142b (difluorochloroethane) is a very important fluorochloroalkane which can be used as an intermediate of a refrigerant, a temperature controller medium and an aviation propeller and is a main monomer vinylidene fluoride raw material for manufacturing fluororubber and fluoroplastic. F142b is generally produced by fluorination of methyl chloroform and hydrogen fluoride, or by addition of acetylene and hydrogen fluoride followed by photochlorination. In the process of preparing vinylidene fluoride, raw material F142b is cracked to generate mixed gas, and the mixed gas is filtered, washed with water, washed with alkali and the like, and then enters a normal-pressure gas warehouse to wait for entering a fractionation section.

The existing degassing tower has poor degassing efficiency on F142b and does not have the impurity removing effect on raw materials, so that the production efficiency and the yield of the whole vinylidene fluoride are affected.

Disclosure of Invention

The purpose of this application is to provide a F142b degasser to solve current degasser and to F142 b's degasification inefficiency, and do not possess the edulcoration effect to the raw materials, and then influence the problem of the production efficiency and the yield of whole vinylidene fluoride.

For solving above-mentioned technical problem, this application provides an F142b degasser, including degasser and degasser cauldron, the top of degasser is provided with the condenser, the degasser includes tower body, well tower body and lower tower body, be provided with the distributor in the well tower body, well tower body is close to top one side of distributor is provided with the feed inlet, the below of distributor is provided with first gas-liquid separation subassembly, be provided with a plurality of second gas-liquid separation subassemblies in the lower tower body, the bottom of lower tower body sets up the head, the lower tower body is close to top one side of head is provided with the drain, one side intercommunication of lower tower body is provided with the discharging pipe, the other end of discharging pipe with the bottom one side of degasser cauldron is connected, top one side of degasser cauldron with be provided with the steam pipe between the lower tower body.

In the scheme, a skirt is arranged at the bottom of the degassing tower.

It is further worth to say that the upper tower body is also provided with a third gas-liquid separation component.

It is further worth explaining that first gas-liquid separation subassembly, second gas-liquid separation subassembly and third gas-liquid separation subassembly all include guide grid tray and catch basin, the guide grid tray passes through the holding ring setting in the degasser, the catch basin is fixed the bottom of guide grid tray.

As a preferable implementation mode, the middle tower body is provided with two distributors, and the feeding hole is correspondingly formed above each distributor.

As a preferred implementation mode, the middle tower body is also provided with a first temperature measuring port and a first pressure difference meter port, and the upper tower body is provided with a second temperature measuring port and a second pressure difference meter port.

As a preferred embodiment, lifting lugs are arranged on two sides of the upper tower body, the middle tower body and the lower tower body.

As a preferred implementation mode, the side wall of the middle tower body is provided with an ear seat, and the ear seat is provided with an electrostatic grounding plate.

Compared with the prior art, the F142b degasser provided by the utility model at least comprises the following beneficial effects:

1. the middle tower body is internally provided with a distributor and a first gas-liquid separation component, F142b containing impurities can be uniformly distributed in the degassing tower after being added from the feed inlet, so that part of the impurities are separated in the distributor, the degassing kettle provides a hot air source for the degassing tower, the F142b and low-boiling-point substances become gases to rise to the condenser, the F142b flows back into the degassing tower again through the condensation effect of the condenser for degassing, the low-boiling-point substances are discharged from the condenser, and the circulation is completed to remove the impurities of the F142 b.

2. Through the setting of degasification cauldron, provide stable heat source for the degasification tower is interior, evaporates the impurity in the F142b in the degasification tower as soon as possible, improves purification efficiency.

Drawings

For a clearer description of the technical solutions of the present application, the drawings that are required to be used in the embodiments will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without making any effort.

FIG. 1 is a schematic diagram of an F142b degasser provided by the utility model;

FIG. 2 is a schematic diagram showing the connection of a degassing tower and a degassing kettle;

FIG. 3 is a top view of a distributor provided by the present utility model;

FIG. 4 is a top view of a drip pan provided by the present utility model;

in the figure: 1. a degasser; 100. a lower tower body; 200. a middle tower body; 300. an upper tower body; 2. a skirt; 3. a seal head; 4. a sewage outlet; 5. a discharge pipe; 6. a steam pipe; 7. a second gas-liquid separation assembly; 8. a first gas-liquid separation assembly; 9. a distributor; 10. a feed inlet; 11. a third gas-liquid separation assembly; 12. a condenser; 131. a material guiding grid plate; 132. a drip pan; 141. a first temperature measuring port; 142. a second temperature measuring port; 151. a first differential pressure gauge port; 152. a second differential pressure gauge port; 16. lifting lugs; 171. an ear seat; 172. an electrostatic ground plate; 18. and (5) a degassing kettle.

Detailed Description

In order to better understand the technical solutions in the present application, the following description will be made in detail with reference to the accompanying drawings.

The core of the application is to provide an F142b degassing tower, which solves the problems that the existing degassing tower has poor degassing efficiency on F142b and does not have impurity removal effect on raw materials, thereby influencing the production efficiency and yield of the whole vinylidene fluoride.

Fig. 1 is a schematic structural diagram of an F142b degasser provided by the present utility model, fig. 2 is a schematic connecting diagram of the degasser and the degasser provided by the present utility model, fig. 3 is a top view of a distributor provided by the present utility model, and fig. 4 is a top view of a liquid collecting tray provided by the present utility model. See fig. 1-4.

The utility model provides a F142b degasser, including degasser 1 and degasser 18, the degasser setting is in one side of degasser 1, the top of degasser 1 is provided with condenser 12, condenser 12 intercommunication sets up in the top of degasser 1, when the gaseous material in the degasser 1 rises to condenser 12, let in frozen brine into condenser 12, and then carry out condensation treatment to gaseous material, and then carry out separation with low boiling point thing impurity and F142b, degasser 1 includes upper tower 300, well tower 200 and lower tower 100, concretely, the height of degasser 1 can be decided according to actual demand, be provided with distributor 9 in the well tower 200, the top side that well tower 200 is close to distributor 9 is provided with feed inlet 10, with the F142b that contains the impurity through the feed inlet 10 in adding degasser 1, fall to distributor 9, distributor 9 makes F142b evenly distributed in degasser 1, and evenly fall down along distributor 9, the below of distributor 9 is provided with first liquid separation subassembly 8, be provided with a plurality of second liquid separation subassemblies 7 in the lower tower 100, the velocity of gas separation subassembly through the second liquid separation subassembly 7 increases, the area of gas separation with the material increases, increase the removal rate of material. The bottom of lower tower body 100 sets up head 3, moisture or other impurity that breaks away from in the F142b separates with F142b, drop to head 3 on, lower tower body 100 is close to the top side of head 3 and is provided with drain 4, drain 4 with moisture and other impurity, one side intercommunication of lower tower body 100 is provided with discharging pipe 5, be provided with steam pipe 6 between the top side of degasification cauldron 18 and the lower tower body 100, the other end of discharging pipe 5 is connected with the bottom side of degasification cauldron 18, the structure and the theory of operation of degasification cauldron 18 all can see prior art, the periphery of degasification cauldron 18 is provided with the heating intermediate layer, heat degasification cauldron 18 through the heating intermediate layer, and then make the material that flows back into in the degasification cauldron 18 through the F142b liquid of condensation back to in the degasification cauldron 18 through discharging pipe 5, become gas again and get into degasification tower 1 through steam pipe 6 and carry out degasification edulcoration.

In this embodiment, in order to improve the stability of the degassing tower 1 during operation, it is preferable that the bottom of the degassing tower 1 is provided with a skirt 2.

As a preferred embodiment, a third gas-liquid separation assembly 11 is further disposed in the upper tower 300. When the gas material rises to the upper tower 300 and passes through the third gas-liquid separation assembly 11, the water vapor is liquefied on the surface of the third gas-liquid separation assembly 11, and then flows back to the lower tower 100 for removal.

In this embodiment, preferably, the first gas-liquid separation assembly 8, the second gas-liquid separation assembly 7 and the third gas-liquid separation assembly 11 each include a material guiding grid plate 131 and a liquid collecting disc 132, the material guiding grid plates 131 are arranged in the degassing tower 1 through supporting rings, the liquid collecting discs 132 are fixed at the bottoms of the material guiding grid plates 131, and when the liquid above the material guiding grid plates falls down evenly through the material guiding grid plates 131, steam rises evenly through the liquid collecting discs 132, so that the gas-liquid contact area is increased, and the effect of fully removing impurities is achieved.

In order to improve the working efficiency of the degassing tower 1, preferably, two distributors 9 are arranged on the middle tower body, and a feed inlet 10 is correspondingly arranged above each distributor 9. And a certain amount of F142b containing impurities is slowly added into the degassing tower 1 through the two feed inlets 10, so that the gas-liquid contact area is increased, and the working efficiency is improved.

For better degassing efficiency control and better impurity removal effect, preferably, the middle tower body 200 is further provided with a first temperature measuring port 141 and a first pressure difference meter port 151, and the upper tower body 300 is provided with a second temperature measuring port 142 and a second pressure difference meter port 152. The operating temperature of the condenser 12 is controlled by measuring the temperature difference and pressure difference between the middle tower body 200 and the upper tower body 300, thereby ensuring that the low-boiling-point substances are removed from the F142 b.

Preferably, both sides of the upper tower body 300, the middle tower body 200, and the lower tower body 100 are provided with lifting lugs 16. The degassing tower 1 is conveniently installed through lifting lugs 16.

Preferably, the side wall of the middle tower body 200 is provided with an ear seat 171, and the ear seat 171 is provided with an electrostatic grounding plate 172 for eliminating static electricity in the degassing tower 1 and ensuring normal operation of the degassing tower 1.

According to the F142b degassing tower, in actual use, F142b containing impurities is added into the degassing tower 1 through the feed inlet 10 and falls onto the distributor 9, the F142b is uniformly distributed in the degassing tower 1 by the distributor 9 and uniformly falls down along the distributor 9, then the contact area of materials and ascending gas is increased through the first gas-liquid separation assembly 8 and the second gas-liquid separation assembly 7, the flow rate of the materials is increased, the removal speed of the impurities is accelerated, the degassing kettle 18 provides a hot gas source for the degassing tower 1, the F142b and low-boiling-point substances become gases to rise to the condenser 12, the F142b flows back into the degassing tower 1 again through the condensation of the condenser 12 for degassing, the low-boiling-point substances are discharged from the condenser 12, and the cycle is completed to remove impurities of the F142 b.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The above-described embodiments of the present application are not intended to limit the scope of the present application.

Claims

1. An F142b degasser comprising:

the utility model provides a degasification tower (1) and degasification cauldron (18), the top of degasification tower (1) is provided with condenser (12), degasification tower (1) is including last tower body (300), well tower body (200) and lower tower body (100), be provided with distributor (9) in well tower body (200), well tower body (200) are close to top one side of distributor (9) is provided with feed inlet (10), the below of distributor (9) is provided with first gas-liquid separation subassembly (8), be provided with a plurality of second gas-liquid separation subassembly (7) in lower tower body (100), the bottom of lower tower body (100) sets up head (3), lower tower body (100) are close to top one side of head (3) is provided with drain (4), one side intercommunication of lower tower body (100) is provided with discharging pipe (5), the other end of discharging pipe (5) with one side of the bottom of distributor (18) is connected, top one side of degasification cauldron (18) with be provided with steam between lower tower body (100) 6.

2. An F142b degasser according to claim 1, characterized in that the bottom of the degasser (1) is provided with a skirt (2).

3. An F142b degasser according to claim 1, characterized in that a third gas-liquid separation assembly (11) is also provided in said upper tower body (300).

4. A F142b degasser according to claim 3, characterized in that said first gas-liquid separation module (8), second gas-liquid separation module (7) and third gas-liquid separation module (11) each comprise a guide grid (131) and a drip tray (132), said guide grids (131) being arranged in said degasser (1) by means of support rings, said drip tray (132) being fixed at the bottom of said guide grids (131).

5. An F142b degassing tower according to claim 1, characterized in that two distributors (9) are arranged on the middle tower body, and correspondingly, the feed inlet (10) is arranged above each distributor (9).

6. The F142b degasser of claim 1, wherein the middle tower body (200) is further provided with a first temperature measuring port (141) and a first pressure difference meter port (151), and the upper tower body (300) is provided with a second temperature measuring port (142) and a second pressure difference meter port (152).

7. An F142b degasser according to claim 1, characterized in that lifting lugs (16) are provided on both sides of the upper (300), middle (200) and lower (100) tower.

8. The F142b degasser of claim 1, wherein an ear seat (171) is provided on a side wall of said middle tower body (200), and an electrostatic grounding plate (172) is provided on said ear seat (171).