CN212417492U

CN212417492U - Tail gas washing tower for dimethyl ether synthesis

Info

Publication number: CN212417492U
Application number: CN202020930949.2U
Authority: CN
Inventors: 刘兴禄; 石红兵; 何利生; 杨家元; 刘永忠; 李仲勤
Original assignee: Chongqing Wanlilai Chemical Co ltd
Current assignee: Chongqing Wanlilai Chemical Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-01-29
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a tail gas washing tower for dimethyl ether synthesis, which mainly comprises a tower body, wherein the tower body is divided into a demisting layer, a spraying layer and a packing layer from top to bottom, the demisting overhaul port is arranged on the tower body corresponding to the demisting layer, and an observation port is arranged on the tower body corresponding to the spraying layer, the utility model relates to the technical field of dimethyl ether synthesis, the tail gas washing tower for dimethyl ether synthesis has simple structure and convenient assembly and disassembly, a packing support plate is loaded in the washing tower in an insertion mode through a pull type overhaul structure, the installation port is sealed through a sealing groove plate matched with a shell, thereby realizing the effect of the packing layer by placing the packing on the packing support plate, and when in overhaul or replacement, the packing can be overhauled and replaced by only removing the packing support plate through the sealing groove plate, thereby increasing the operation space, the operation is convenient, the efficiency of the operation, maintenance and replacement is accelerated, the sealing can be realized, and the normal use is not influenced.

Description

Tail gas washing tower for dimethyl ether synthesis

Technical Field

The utility model relates to a dimethyl ether synthesis technical field specifically is a dimethyl ether is synthetic with tail gas washing tower.

Background

Dimethyl ether is a flammable gas. Mixing with air can form an explosive mixture. The dimethyl ether is prepared by two methods or one method mainly as a methylating agent, wherein the two methods are common industrial means, and the dimethyl ether is prepared by methanol synthesis and methanol dehydration, and in the preparation synthesis process, the generated tail gas contains a large amount of harmful gases, and can cause unavoidable damage to the environment and surrounding people if the gases are directly discharged without treatment; the filler is the main structure that its realization increases gas-liquid mixing rate in current tail gas scrubbing tower, and because current filler overhauls the change, mostly realizes through less access hole, therefore to operating personnel, it is very inconvenient operation, and overhauls and change efficiency slow, also indirect treatment effeciency of having influenced, in view of this, to the above-mentioned problem deep research, tunnel and have the present case to produce.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a dimethyl ether is tail gas washing tower for synthesis to solve one of the technical problem that prior art exists at least.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a tail gas washing tower for dimethyl ether synthesis mainly comprises a tower body, wherein the tower body is divided into a demisting layer, a spraying layer and a packing layer from top to bottom, a demisting overhaul port is formed in the tower body corresponding to the demisting layer, an observation port is formed in the tower body corresponding to the spraying layer, and a pull type overhaul structure is formed in one side of the tower body corresponding to the packing layer;

the pull type overhaul structure comprises: the packing device comprises a mounting opening, a pair of mounting pieces, a sealing groove plate, a pair of butt-joint pieces, a pair of fastening bolts, a pair of bulges, a pair of sliding grooves and a packing support plate;

the tower body has been seted up on one side the installing port, and the installing port both sides are equipped with a pair of installation piece, and is a pair of the butt joint piece install in sealed frid both sides, sealed frid butt joint is installed on the installing port, and is a pair of butt joint piece and a pair of mounting panel dock each other and be connected through a pair of fastening bolt, it is equipped with a pair of arch just to be located the installing port both sides in the tower body, and is a pair of bellied relative distance is with the width with the installing port, and is a pair of the relative wall of arch has been seted up a pair of spout, the.

Preferably, a water tank is arranged at the bottom end of the tower body, an air inlet is arranged between the water tank and the packing layer, and the air inlet is arranged on one side of the tower body.

Preferably, a circulating water pump is arranged on one side of the water tank and communicated with the water tank, and a circulating pipe is arranged on the circulating water pump and connected with the spraying layer.

Preferably, an inspection port is arranged on the tower body and above the mounting port.

Preferably, the pair of protrusions are arc-shaped structures which are symmetrical up and down.

Preferably, the installing port is the notch cuttype structure, sealed frid is the arc structure and matches with the installing port shape, just sealed frid has sealed rubber ring all around.

Advantageous effects

The utility model provides a tail gas washing tower for dimethyl ether synthesis. The method has the following beneficial effects: this dimethyl ether is synthetic with tail gas scrubbing tower simple structure, easy dismounting, overhaul the structure through the pull formula, make the mode that the filler backup pad adopted the cartridge load in the scrubbing tower, and seal the installing port through the sealed frid that matches with the shell, and then realize placing the filler in the effect that can realize the filler layer in the filler backup pad, and when overhauing or changing, only need pull down the seal groove version and take the filler backup pad out and accomplish the filler and overhaul and change, the operating space has been increased, convenient operation, accelerate the efficiency that its operation was overhauld and was changed, and can realize sealing, do not influence normal use.

Drawings

FIG. 1 is a schematic view of a sectional structure of a tail gas scrubber for dimethyl ether synthesis according to the present invention.

Fig. 2 is a schematic diagram of a partial overlooking cross-sectional structure of a tail gas washing tower for dimethyl ether synthesis.

Fig. 3 is a side view schematic structural diagram of a tail gas washing tower for dimethyl ether synthesis.

In the figure: 1. a rectifying tower; 2. a heat exchanger; 3. a reboiler; 4. a membrane box; 5. a U-shaped pipe; 6. a control valve; 7. an annular plate; 8. a bolt; 9. passing through a membrane; 10. a pumping-out channel; 11. heating a tube; 12. a first heat exchange tube; 13. a second heat exchange tube; 14. a methanol absorption pipe; 15. a transition duct; 16. a flange plate.

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.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.

Example (b): as can be known from the attached figures 1-3 of the specification, the tail gas washing tower for dimethyl ether synthesis mainly comprises a tower body 1, wherein the tower body 1 is divided into a defogging layer 2, a spraying layer 3 and a packing layer 4 from top to bottom, the defogging access hole is formed in the tower body 1 corresponding to the defogging layer 2, the observation hole 5 is formed in the tower body 1 corresponding to the spraying layer 3, a pull-out type access structure is formed in one side of the tower body 1 corresponding to the packing layer 4, in the specific implementation process, the tower body 1 is a cylindrical vertical cylindrical structure, the bottom end of the cylindrical vertical cylindrical structure is a rectangular structure water tank 12, a treatment liquid is filled in the water tank 12, in the specific implementation process, the treatment liquid in the water tank 12 is pumped to the height of the spraying layer 3 by pumping water through a pump, the treatment liquid is sprayed to be fully contacted with tail gas for effective treatment, solid particles and harmful substances are taken out, and the filler on the packing layer, the demisting layer 2 demists the treated tail gas, so that the treatment liquid is prevented from being carried away by liquid;

as can be seen from the accompanying drawings 1-3 of the specification, the pull type maintenance structure comprises: the mounting opening, the pair of mounting pieces 6, the seal groove plate 7, the pair of butt pieces 8, the pair of fastening bolts 9, the pair of protrusions 10, the pair of slide grooves and the packing support plate 11 are connected and positioned as follows;

a mounting opening is formed in one side of the tower body 1, a pair of mounting pieces 6 are arranged on two sides of the mounting opening, a pair of connecting pieces 8 are arranged on two sides of a sealing groove plate 7, the sealing groove plate 7 is installed on the mounting opening in a butt joint mode, the pair of connecting pieces 8 and the pair of mounting plates are in butt joint and are connected through a pair of fastening bolts 9, a pair of protrusions 10 are arranged in the tower body 1 and located on two sides of the mounting opening, the relative distance between the pair of protrusions 10 is as wide as the mounting opening, a pair of sliding grooves are formed in the opposite wall surfaces of the pair of protrusions;

in the specific implementation process, the mounting opening is matched with the structure of the sealing groove plate 7 in size, the sealing groove plate 7 can seal the mounting opening, when the packing box is used, the packing support plate 11 is clamped through the grooves opposite to the protrusions 10, when the packing is required to be mounted or replaced, the mounting plate 6 and the butt-joint plate 8 are locked through the contact fastening bolt 9, the sealing groove plate 7 is dismounted from the mounting opening, the packing support plate 11 slides out of the grooves in a stack, the packing support plate 11 is in a segmental arc long circle shape, the segmental arc is matched with the protrusions 10, sliding rods matched with the sliding grooves are arranged on two sides of the packing support plate, and the packing support plate 11 is inserted into the protrusions 10 from the mounting opening after the replacement is completed;

to sum up the totality can know, this dimethyl ether is synthetic with tail gas washing tower simple structure, easy dismounting, overhaul the structure through the pull formula, make filler backup pad 11 adopt the mode loading of cartridge in the washing tower, and seal the installing port through the sealed frid 7 that matches with the shell, and then realize placing the filler and can realize the effect of filler layer 4 on filler backup pad 11, and when overhauing or changing, only need to pull down the sealed groove version and take out filler backup pad 11 and accomplish filler maintenance and change, the operating space has been increased, convenient operation, accelerate the efficiency of its operation maintenance and change, and can realize sealedly, do not influence normal use.

Preferably, a water tank 12 is arranged at the bottom end of the tower body 1, an air inlet 13 is arranged between the water tank 12 and the packing layer 4, the air inlet 13 is arranged at one side of the tower body 1, the air inlet 13 is used for tail gas to enter, and the water tank 12 is used for collecting and placing the treated water.

Preferably, a circulating water pump 14 is arranged on one side of the water tank 12 and communicated with the water tank 12, a circulating pipe 15 is arranged on the circulating water pump 14 and connected with the spraying layer 3, and the circulating water pump 14 is used for pumping water in the water tank 12 and introducing the water into a spray pipe in the spraying layer 3 through the circulating pipe 15.

Preferably, an inspection opening 16 is further provided on the tower body 1 above the mounting opening for observing the working state of the packing.

As a preferred scheme, furthermore, a pair of protrusions 10 are both arc-shaped structures with symmetrical upper and lower sides, and the arc-shaped structures play a good transition effect and avoid influencing the passage of fluid.

Preferably, the mounting opening is of a stepped structure, the sealing groove plate 7 is of an arc structure and is matched with the mounting opening in shape, and the sealing rubber ring 17 is arranged around the sealing groove plate 7 to improve sealing performance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tail gas washing tower for dimethyl ether synthesis mainly comprises a tower body (1) and is characterized in that the tower body (1) is divided into a demisting layer (2), a spraying layer (3) and a packing layer (4) from top to bottom, a demisting overhaul port is formed in the tower body (1) corresponding to the demisting layer (2), an observation port (5) is formed in the tower body (1) corresponding to the spraying layer (3), and a drawing overhaul structure is formed in the position, corresponding to the packing layer (4), of one side of the tower body (1);

the pull type overhaul structure comprises: the sealing device comprises a mounting opening, a pair of mounting pieces (6), a sealing groove plate (7), a pair of butt-joint pieces (8), a pair of fastening bolts (9), a pair of bulges (10), a pair of sliding grooves and a packing support plate (11);

the tower body (1) one side has been seted up the installing port, and the installing port both sides are equipped with a pair of installation piece (6), and is a pair of butt joint piece (8) install in sealed frid (7) both sides, sealed frid (7) butt joint is installed on the installing port, and is a pair of butt joint piece (8) and a pair of mounting panel dock each other and are connected through a pair of fastening bolt (9), just be located the installing port both sides in tower body (1) and be equipped with a pair of arch (10), it is a pair of the relative distance and the installing port of arch (10) are the same wide, and are a pair of spout has been seted up to the relative wall of arch (10), filler backup pad (11) cartridge is in.

2. The tail gas washing tower for dimethyl ether synthesis according to claim 1, wherein a water tank (12) is arranged at the bottom end of the tower body (1), an air inlet (13) is arranged between the water tank (12) and the packing layer (4), and the air inlet (13) is arranged at one side of the tower body (1).

3. The tail gas washing tower for dimethyl ether synthesis according to claim 2, wherein a circulating water pump (14) is arranged on one side of the water tank (12) and communicated with the water tank (12), and a circulating pipe (15) is arranged on the circulating water pump (14) and connected with the inside of the spraying layer (3).

4. The tail gas washing tower for dimethyl ether synthesis according to claim 1, wherein a view port (16) is arranged on the tower body (1) above the mounting port.

5. The tail gas washing tower for dimethyl ether synthesis according to claim 1, wherein the pair of protrusions (10) are both arc-shaped structures with upper and lower sides being symmetrical.

6. The tail gas washing tower for dimethyl ether synthesis according to claim 1, wherein the mounting port is of a stepped structure, the sealing groove plate (7) is of an arc structure and is matched with the mounting port in shape, and a sealing rubber ring (17) is arranged around the sealing groove plate (7).