CN-224220775-U - Flash evaporation steam recovery device of rectifying tower

CN224220775UCN 224220775 UCN224220775 UCN 224220775UCN-224220775-U

Abstract

The utility model discloses a flash evaporation steam recovery device of a rectifying tower, which comprises a tubular heat exchanger, a compressor, a purifying box body and a recovery storage box body, wherein the tubular heat exchanger is arranged on the top surface of the purifying box body through a supporting frame, a feeding end of the tubular heat exchanger is connected with a steam outlet of the rectifying tower, the compressor is arranged on the side wall of the purifying box body and is connected with a discharging end of the tubular heat exchanger, the compressor compresses steam and then conveys the compressed steam into the purifying box body, a purifying mechanism is arranged in the purifying box body, the purified steam enters the purifying box body through the compressor, impurities are removed and purified through the purifying mechanism, and the purified steam is stored in the recovery storage box body below the purifying box body. Compared with the prior art, the utility model has the advantages that the steam is primarily cooled by the tubular heat exchanger and the condensed water is recovered, then the pressure of the steam is increased by the compressor so as to facilitate the subsequent treatment, the energy waste caused by the steam emission is effectively reduced, and the pollutant emission is reduced by the purification mechanism.

Inventors

SHI JIN
Luo Yedong
QU LONGXUE
YU CHANGFU
WANG WEIHUA
Jiao tian

Assignees

新疆合盛硅业新材料有限公司

Dates

Publication Date: 20260512
Application Date: 20250429

Claims (5)

1. The flash evaporation steam recovery device of the rectifying tower is characterized by comprising a tubular heat exchanger (1), a compressor (2), a purifying box body (3) and a recovery storage box body (4); The tubular heat exchanger (1) is arranged behind the top surface of the purifying box body (3) through a supporting frame, the feeding end is connected with a steam outlet of the rectifying tower, the compressor (2) is arranged on the side wall of the purifying box body (3) and is connected with the discharging end of the tubular heat exchanger (1), and the compressor (2) compresses steam and then conveys the compressed steam into the purifying box body (3); The purifying box body (3) is internally provided with a purifying mechanism, after steam enters the purifying box body (3) through the compressor (2), the purified steam is purified by impurity removal through the purifying mechanism, and the purified steam is stored in the recovery storage box body (4) below the purifying box body (3).
2. The flash evaporation steam recovery device of the rectifying tower according to claim 1, further comprising a drain pipe (5) and a water collecting tank (6); The drain pipe (5) is connected with a condensed water outlet of the tubular heat exchanger (1), condensed water is released into a water collecting tank (6) on the top surface of the purifying tank body (3) through the drain valve, and a liquid level display screen (7) is arranged on the water collecting tank (6).
3. A flash distillation column vapor recovery device according to claim 1, wherein the purifying mechanism comprises an electric precipitator (8) and an activated carbon adsorption plate (9); The electric dust collector (8) is arranged at the top end inside the purifying box body (3), a plurality of electric dust collectors are arranged in sequence, steam sequentially passes through the active carbon adsorption plates (9) after being dedusted by the electric dust collectors (8), the active carbon adsorption plates (9) are detachably arranged below the electric dust collectors (8), and the steam enters the recycling storage box body (4) after being purified.
4. A flash evaporation steam recovery device of a rectifying tower according to claim 3 is characterized in that a transparent cover plate (10) is hinged on the purifying box body (3), and a mounting groove (11) for accommodating an activated carbon adsorption plate (9) in a matched mode is formed in the purifying box body.
5. A flash evaporation steam recovery device of a rectifying tower according to claim 3 is characterized in that a gas detector (12) positioned below an activated carbon adsorption plate (9) is arranged on the side wall of a purifying box body (3), and purified gas passes through the gas detector (12) and then enters a recovery storage box body (4) through an air pump (13) and a conveying pipe (14).

Description

Flash evaporation steam recovery device of rectifying tower Technical Field The utility model relates to the technical field of rectifying towers, in particular to a flash evaporation steam recovery device of a rectifying tower. Background In the chemical industry, rectifying columns are one of the important devices for separating liquid mixtures. During operation, a significant amount of flash vapor (i.e., vapor formed by rapid evaporation due to sudden changes in temperature or pressure) is generated; Traditionally, flash vapors from rectifying columns are often released untreated into the air, however these vapors often contain impurities and Volatile Organic Compounds (VOCs), which, if discharged directly to the atmosphere, result in a significant thermal energy loss, and the direct discharge of unfiltered or purified flash vapors containing hazardous materials can negatively impact the quality of the air, which requires a rectifying column flash vapor recovery unit. Disclosure of utility model The utility model aims to solve the technical problems that the direct discharge of steam not only causes waste, but also has certain pollution, and provides a flash evaporation steam recovery device of a rectifying tower. In order to solve the technical problems, the technical scheme provided by the utility model is that the flash evaporation steam recovery device of the rectifying tower comprises a tubular heat exchanger, a compressor, a purifying box body and a recovery storage box body; The tubular heat exchanger is arranged on the top surface of the purifying box body through a supporting frame, the feeding end is connected with a steam outlet of the rectifying tower, the compressor is arranged on the side wall of the purifying box body and is connected with the discharging end of the tubular heat exchanger, and the compressor compresses the steam and then conveys the compressed steam into the purifying box body; The purifying box body is internally provided with a purifying mechanism, after steam enters the purifying box body through the compressor, the purified steam is purified by impurity removal through the purifying mechanism, and the purified steam is stored in a recovery storage box body positioned below the purifying box body. As an improvement of the process, the water collecting device also comprises a water drain pipe and a water collecting tank; The drain pipe is connected with the condensed water outlet of the tubular heat exchanger, and then releases condensed water into a water collecting tank on the top surface of the purifying tank body through the drain valve, and a liquid level display screen is arranged on the water collecting tank. As an improvement, the purifying mechanism comprises an electric dust collector and an activated carbon adsorption plate; The electrostatic precipitator sets up on purifying box body inside top, and has set gradually a plurality of, and steam passes each electrostatic precipitator in proper order and removes dust the back through the activated carbon adsorption plate, and activated carbon adsorption plate demountable installation is in the electrostatic precipitator below, and in getting into the recovery storage box body after the steam purification. As an improvement, the purifying box body is hinged with a transparent cover plate, and an installation groove for accommodating the activated carbon adsorption plate in a matched manner is formed in the purifying box body. As an improvement, the side wall of the purifying box body is provided with a gas detector below the activated carbon adsorption plate, and purified gas passes through the gas detector and then enters the recycling storage box body through an air pump and a conveying pipe. Compared with the prior art, the utility model has the advantages that: 1. The steam is primarily cooled through the tubular heat exchanger, condensed water is recovered, and then the pressure of the steam is increased by the compressor so as to facilitate subsequent treatment, thereby effectively reducing energy waste caused by steam emission; 2. The pollutant discharge amount is reduced through double purification of the electric dust remover and the activated carbon adsorption plate, and the green production target is realized; 3. the gas detector is provided, so that the quality of the purified gas can be monitored in real time, and the safety and compliance of the output gas are ensured. Drawings Fig. 1 is a first perspective view of a rectifying column flash vapor recovery device of the present utility model. Fig. 2 is a second perspective view of a rectifying column flash vapor recovery device of the present utility model. Fig. 3 is a cross-sectional view of a flash vapor recovery device of a rectifying column of the present utility model. Fig. 4 is a schematic diagram of a tubular heat exchanger of a flash vapor recovery device for a rectifying tower according to the present utility model. The device comprises a tub