CN211462143U

CN211462143U - Condensate water recycling device for acrylamide concentrated tail gas purification tower

Info

Publication number: CN211462143U
Application number: CN201922032042.4U
Authority: CN
Inventors: 张虎寅; 庄贤军
Original assignee: Zhejiang Xinyong Biological Chemical Co ltd
Current assignee: Zhejiang Xinyong Biological Chemical Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-09-11
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a comdenstion water recovery unit again for concentrated tail gas clean-up tower of acrylamide, it is including collection portion, condensation portion, and condensation portion is including compiling a section of thick bamboo, and the upper end that collects a section of thick bamboo is equipped with spray set, and collection portion includes the tuber pipe, collects the pipe, and the tuber pipe is connected with collecting the pipe, collects the pipe and is connected to a section of thick bamboo that collects, collects the pipe and is one at least, collects the tuber pipe that the pipe links to each other with every and is one at least. The tail gas collected into the collecting cylinder is cooled through the spraying device and condensed, so that the water vapor loss is reduced, and the concentration of acrylamide carried by the tail gas is further reduced; one or more purification towers are connected to the collecting pipe through the air pipe, and tail gas of the purification towers is led into the collecting cylinder through one or more collecting pipes, so that the tail gas of one or more purification towers can be collected and condensed together, and the condensing efficiency is increased; meanwhile, the spraying valve of the spraying device changes the opening degree of the spraying valve according to the temperature sensor, and the condensation effect is guaranteed.

Description

Condensate water recycling device for acrylamide concentrated tail gas purification tower

Technical Field

The utility model relates to a technical field that tail gas condensation was retrieved, specifically is a comdenstion water recovery unit again for concentrated tail gas purification tower of acrylamide.

Background

In the acrylamide industry, concentrated waste gas is purified by a secondary purification tower, and a small amount of acrylamide carried in the waste gas is absorbed by the purification tower and then is discharged, so that the environmental protection requirement can be met. However, since the temperature of the concentrated exhaust gas is higher, generally about 90 ℃, after the concentrated exhaust gas is absorbed by the secondary purification tower, the temperature of the water in the purification tower is gradually increased, and the temperature of the tail gas is also 50 ℃ or even higher, so that the tail gas discharged from the discharge port of the purification tower is always in a white bubbling state, which results in that each purification tower can lose more than 10 tons of water vapor per day on average, and a plurality of purification towers can work at the same time, and the discharged tail gas wastes a large amount of resources.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the condensate water recycling device for the acrylamide concentrated tail gas purification tower can condense and recycle tail gas discharged by a plurality of purification towers.

The utility model adopts the technical proposal that: the condensate water recycling device for the acrylamide concentrated tail gas purification tower comprises a collecting part and a condensing part, wherein the condensing part comprises a collecting cylinder, a spraying device is arranged at the upper end of the collecting cylinder, the collecting part comprises an air pipe and a collecting pipe, the air pipe is connected with the collecting pipe, the collecting pipe is connected to the collecting cylinder, at least one collecting pipe is provided, and at least one air pipe connected with each collecting pipe is provided.

After the structure more than adopting, the utility model discloses a comdenstion water recovery unit again for concentrated tail gas clean-up tower of acrylamide compares with prior art and has following advantage: firstly, the air pipe is connected with the air outlet of the purification tower, tail gas is led into the collecting pipe and is led into the collecting cylinder through the collecting pipe, and the tail gas is cooled through the spraying device to be condensed, so that the water vapor loss is reduced, and the concentration of acrylamide carried by the tail gas is further reduced. And secondly, the air outlet of at least one purification tower can be connected to a collecting pipe through an air pipe, and tail gas is led to a collecting cylinder through at least one collecting pipe, so that the tail gas of one or more purification towers can be collected and condensed together, resources are saved, and the condensing efficiency is increased.

Preferably, a packing layer is further arranged in the collecting cylinder, and the packing layer is arranged below the spraying device. The packing layer can increase the cooling area and achieve the purpose of recovering the water vapor carried in the tail gas.

Preferably, the spraying device comprises a spraying water pipe and a spraying valve, and the spraying valve is connected with the spraying water pipe. The spraying device is connected with a spraying valve, the spraying water quantity is controlled, and the waste of water resources or the condition that a good condensation effect cannot be achieved is avoided.

Preferably, a temperature sensor is connected to the spraying device. Temperature sensor can detect the temperature of tail gas to give spray set with temperature information transmission, spray valve alright in order according to temperature regulation self aperture, guarantee also can guarantee well the condensation effect under the condition that the change appears in the tail gas temperature.

Preferably, the lower part of the collecting cylinder is funnel-shaped, and the lower end part of the funnel-shaped is provided with a water drain valve. The lower part is arranged to be funnel-shaped, so that condensed water can be concentrated conveniently, and the water drain valve can control the collected water to be discharged into the water storage tank.

Drawings

Fig. 1 is a schematic structural diagram of a condensed water recycling device for an acrylamide concentrated tail gas purification tower of the present invention.

Wherein, 1, a collecting cylinder; 2. an air duct; 3. a header; 4. a filler layer; 5. a spray header; 6. a spray valve; 7. a water drain valve; 8. a purification tower; 9. a temperature sensor.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

The utility model provides a condensed water recycling device for an acrylamide concentrated tail gas purification tower, which comprises a collecting part and a condensing part, wherein the condensing part comprises a collecting cylinder 1, the upper end of the collecting cylinder 1 is provided with a spraying device, the collecting part comprises an air pipe 2 and a collecting pipe 3, the air pipe 2 is connected with the collecting pipe 3, and the collecting pipe 3 is connected to the collecting cylinder 1; a packing layer 4 is also arranged in the collecting cylinder 1, and the packing layer 4 is arranged below the spraying device; the spraying device comprises a spraying water pipe 5 and a spraying valve 6, and the spraying valve 6 is also connected with a temperature sensor 9; the lower part of the collecting cylinder 1 is funnel-shaped, and the lower end part of the funnel-shaped is provided with a water drain valve 7.

As can be seen from fig. 1 in the specification, in this embodiment, 3 collecting pipes 3 are provided to be connected to the collecting cylinder 1, each collecting pipe 3 is connected to 2 air pipes 2, and each air pipe 2 is connected to one purification tower 8, so that the steam generated by 6 purification towers 8 can be condensed and recycled at the same time, thereby saving resources and improving efficiency.

In the present example, the diameter of the collecting tube 3 is 800mm, the diameter of the collecting cylinder 1 is 1600mm, the diameters of the spray valve 6 and the spray pipe 5 are DN25, and the height of the packing layer 4 is 2000 mm.

Temperature sensor 9 can install in the spray set top, detects the tail gas temperature through the condensation, if the tail gas temperature through the condensation is still too high, then increases the aperture through the valve that sprays and makes the water yield that sprays improve to this makes the tail gas temperature further reduce, increases the condensation effect.

The working principle is that the air pipe 2 connected with the discharge port of the purification tower 8 guides the gas discharged by the purification tower 8, so that the tail gas discharged by one or more purification towers 8 is collected in the collecting pipe 3, then the tail gas in the collecting pipe 3 is collected into the collecting cylinder 1, the tail gas collected in the collecting cylinder 1 moves upwards due to higher temperature of the tail gas, when the tail gas moves to the upper end, the temperature of the tail gas is reduced and condensed due to the water sprayed by the spray water pipe 5, the cooling area is increased on the packing layer 4 below the spraying device, so that the condensation effect of the tail gas is better, the temperature sensor 9 detects the temperature of the tail gas in the collecting cylinder 1 and transmits data to the spraying valve 6, the spraying valve 6 controls the opening degree of the spraying valve according to the temperature parameter, thereby controlling the spraying water quantity, and ensuring the condensation quality when the tail gas with different temperatures is treated, and simultaneously saves water resources; the tail gas is through the condensation condensate water that produces and shower water together drop to the collection section of thick bamboo 1 lower part under the effect of self gravity, alright concentrate through the valve 7 that drains and retrieve, owing to collect the guide effect that a section of thick bamboo 1 lower part is hourglass hopper-shaped, can make and collect the remaining of the interior reduction water of section of thick bamboo 1, play and collect the effect better.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a condensate water recovery unit again for concentrated tail gas clean-up tower of acrylamide, it includes collection portion, condensation portion, its characterized in that: the condensation part comprises a collection cylinder (1), a spraying device is arranged at the upper end of the collection cylinder (1), the collection part comprises an air pipe (2) and a collection pipe (3), the air pipe (2) is connected with the collection pipe (3), the collection pipe (3) is connected to the collection cylinder (1), at least one collection pipe (3) is arranged, and at least one air pipe (2) connected with each collection pipe (3) is arranged.

2. The condensate water recycling device for the acrylamide concentrated tail gas purification tower is characterized in that a packing layer (4) is further arranged in the collecting cylinder (1), and the packing layer (4) is arranged below the spraying device.

3. The condensate water recycling device for the acrylamide concentrated tail gas purification tower according to claim 2, wherein the spraying device comprises a spraying water pipe (5) and a spraying valve (6), and the spraying valve (6) is connected with the spraying water pipe (5).

4. The condensate water recycling device for the acrylamide concentrated tail gas purification tower as claimed in claim 3, wherein a temperature sensor (9) is connected to the spraying device.

5. The condensate water recycling device for an acrylamide concentrated tail gas purification tower according to claim 4, characterized in that the lower part of the collecting barrel (1) is funnel-shaped, and the lower end of the funnel-shaped is provided with a water drain valve (7).