CN211069094U

CN211069094U - Acetone recovery device

Info

Publication number: CN211069094U
Application number: CN201921624868.3U
Authority: CN
Inventors: 黄国顺; 魏勇; 张勇
Original assignee: Mianyang Guoshun Electrical Co ltd
Current assignee: Mianyang Guoshun Electrical Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-24
Anticipated expiration: 2029-09-26

Abstract

The utility model relates to the technical field of glass fiber reinforced plastic production equipment, in particular to an acetone recovery device; the adopted technical scheme is as follows: an acetone recovery device comprises a wind collecting cover and a fan, wherein the fan is arranged in a recovery pipeline, one end of the recovery pipeline is connected with the wind collecting cover, and the other end of the recovery pipeline is connected with a compressor through a first one-way valve; the compressor is used for compressing the liquefied gas, the compressor exit end is connected with the condenser through the liquid pump, the condenser is used for condensing the acetone after the liquefaction, condenser exit linkage has acetone recovery tank. The utility model discloses a fan will wash in the workshop waste gas send into the compressor, by the compressor with waste gas compression liquefaction, further condense with the vapor condensation water with in the waste gas through the condenser again to form the mixed solution of acetone and water, send into acetone at last and retrieve in retrieving the jar, can effectively retrieve the acetone gas that waves when wasing the plastic glass mould.

Description

Acetone recovery device

Technical Field

The utility model relates to a glass steel production facility technical field, concretely relates to acetone recovery unit.

Background

In the production of glass fiber reinforced plastic, acetone is often used as a cleaning agent to clean the glass fiber reinforced plastic mold so as to clean stains which are difficult to clean, such as a wax layer on the surface of the glass fiber reinforced plastic mold. Acetone is easy to volatilize, flammable and explosive, is easy to pollute the environment, can be used for preparing toxin and explosion, and needs to be recycled. The liquid waste liquid may be directly fractionated, whereas acetone volatilized into a gaseous form is generally subjected to filtration or activated carbon adsorption, and the recovery rate is low.

SUMMERY OF THE UTILITY MODEL

The technical problem that the gaseous recovery rate of acetone that volatilizees when wasing the plastic injection mould is low to the aforesaid, the utility model provides an acetone recovery unit can effectively retrieve the acetone gas that volatilizees when wasing the plastic injection mould, has the characteristics of the rate of recovery height, energy-concerving and environment-protective.

The utility model discloses a following technical scheme realizes:

an acetone recovery device comprises a wind collecting cover and a fan, wherein the fan is arranged in a recovery pipeline, one end of the recovery pipeline is connected with the wind collecting cover, and the other end of the recovery pipeline is connected with a compressor through a first one-way valve; the compressor is used for compressing the liquefied gas, the compressor exit end is connected with the condenser through the liquid pump, the condenser is used for condensing the acetone after the liquefaction, condenser exit linkage has acetone recovery tank.

The utility model discloses a fan will wash in the workshop waste gas send into the compressor in, compress the liquefaction with waste gas by the compressor to compress into gaseous acetone liquid state, further condense into water with the vapor condensation in the waste gas through the condenser again, with the mixed solution of formation acetone and water. And finally, sending the acetone into an acetone recovery tank for recovery to be further processed, so as to realize the recovery of acetone gas.

As specific embodiments of the condenser: the condenser comprises a primary condensing device and a secondary condensing device, and the primary condensing device and the secondary condensing device are connected in series; one-level condensing equipment includes snakelike cooling tube, snakelike cooling tube lateral wall equipartition has a plurality of thermoelectric generation pieces, the thermoelectric generation piece is used for the heat conversion in acetone liquid and the air to the electric energy. The thermoelectric power generation piece can recycle part of heat, and the temperature of the mixed solution is reduced in an energy conversion mode without extra energy consumption; the thermoelectric generation piece absorbs heat and then is cooled by the secondary condensing device, so that the power consumption of the secondary condensing device can be reduced, and the thermoelectric generation piece is energy-saving, economical and environment-friendly.

The concrete implementation of the secondary cooling device is as follows: the secondary condensing device comprises a cooling box, a spiral pipe is arranged in the cooling box, and a cooling medium is filled in a space between the outer side wall of the spiral pipe and the cooling box. Through cooling medium cooling, cooling efficiency is high, and it is convenient to refrigerate.

Further, the acetone recovery tank is placed in a temperature control box, and the temperature control box is used for controlling the environmental temperature of the acetone recovery tank. The temperature control box controls the storage environment temperature of the mixed solution of the acetone and the water so as to prevent the acetone from volatilizing again.

Further, acetone is retrieved jar upper end and is equipped with the gas outlet, can retrieve jar pressure release to acetone for the mixed solution of acetone and water can get into in the acetone retrieves jar. The upper end of the air outlet is connected with a second one-way valve to prevent outside air from entering the acetone recovery tank and condensing into water.

Furthermore, still include the adsorption tank, the opening in adsorption tank both ends, the adsorption tank intussuseption is filled with active carbon, adsorption tank one end links to each other with the second check valve. The activated carbon can adsorb a small amount of acetone gas volatilized from the acetone recovery tank to prevent acetone from leaking out.

Preferably, the adsorption tank other end is connected with the third check valve, can prevent through the third check valve that the steam of air from getting into in the adsorption tank, and reduce the life of active carbon in the adsorption tank.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the fan is installed in the recovery pipeline, and the wind-collecting cover is connected with first check valve, compressor, liquid pump, condenser, acetone recovery jar through the fan in proper order. The waste gas in the cleaning workshop is sent into the compressor through the fan, the waste gas is compressed and liquefied by the compressor, and the waste gas is further condensed by the condenser to condense the water vapor in the waste gas into water so as to form a mixed solution of acetone and water. And finally, sending the acetone into an acetone recovery tank for recovery to be further processed, so as to realize the recovery of acetone gas.

2. The condenser comprises a primary condensing device and a secondary condensing device, and the primary condensing device and the secondary condensing device are connected in series; and a plurality of thermoelectric generation pieces are uniformly distributed on the side wall of the serpentine cooling pipe of the primary condensing device. The thermoelectric power generation piece can recycle part of heat, and the temperature of the mixed solution is reduced in an energy conversion mode without extra energy consumption; the secondary condensing device is used for cooling after the thermoelectric generation piece absorbs heat, so that the power consumption of the secondary condensing device can be reduced, and the energy can be saved, and the device is clean and environment-friendly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic view of the pipeline connection of the present invention;

fig. 2 is a schematic structural view of the condenser of the present invention.

Reference numbers and corresponding part names in the drawings:

1-air collecting cover, 2-thermoelectric generation sheet, 3-recovery pipeline, 41-first one-way valve, 42-second one-way valve, 43-third one-way valve, 5-compressor, 6-liquid pump, 7-condenser, 71-primary condensing device, 711-serpentine cooling pipe, 712-thermoelectric generation sheet, 72-secondary condensing device, 721-cooling box, 722-spiral pipe, 8-acetone recovery tank, 9-temperature control box and 10-adsorption tank.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

The utility model provides an acetone recovery unit, includes wind-collecting cover 1, fan 2 installs in recovery duct 3, recovery duct one end links to each other with the wind-collecting cover. The air collecting hood 1 is usually installed at the upper end of a glass reinforced plastic mold cleaning station, and can completely suck away the acetone volatilized gas, and the fan 2 is installed in the recovery pipeline 3 and can prevent the acetone gas from leaking. The fan 2 is usually an axial flow fan, and the flow rate is easy to install. The other end of the recovery pipeline 3 is connected with a compressor 5 through a first check valve 41, and the compressor 5 is used for compressing liquefied gas.

It can be understood that the single check valve 41 can prevent the acetone off-gas from being absorbed by the acetone off-gas due to the backflow of the gas when the compressor 5 compresses the gas. The outlet end of the compressor 5 is connected to a condenser 7 via a liquid pump 6, and since the compressor 5 is difficult to compress water vapor and air, the liquid output from the outlet end of the compressor 5 is usually a gas-liquid mixture, and the compressed liquid can be input into the condenser 7 via the liquid pump 6. The liquid pump 6 may be a diaphragm pump, a piston pump, or the like that can mix and convey gas and liquid. The condenser 7 is used for condensing the liquefied acetone and condensing water vapor in the air into water. And an outlet of the condenser 7 is connected with an acetone recovery tank 8 for collecting the mixed solution of acetone and water.

The utility model discloses a fan 2 will wash the waste gas in the workshop and send into compressor 5 in, compress the liquefaction with waste gas by compressor 5 to compress into liquid with the acetone of gaseous state. And further condensed by a condenser 7 to condense water vapor in the exhaust gas into water to form a mixed solution of acetone and water. And finally, the acetone is sent into an acetone recovery tank 8 for recovery to be further processed, so that the recovery of acetone gas is realized. The condensed mixed solution of acetone and water can be directly used for cleaning part of the glass fiber reinforced plastic mold, and can be obtained by purification or fractional distillation if acetone with higher concentration is needed.

As a specific embodiment of the condenser 7: the condenser 7 comprises a primary condensing device 71 and a secondary condensing device 72, wherein the primary condensing device 71 and the secondary condensing device 72 are connected in series; the first-stage condensing device 71 comprises a serpentine cooling pipe 711, a plurality of thermoelectric generation pieces 712 are uniformly distributed on the side wall of the serpentine cooling pipe 711, and the thermoelectric generation pieces 712 are used for converting heat in the compressed acetone liquid and air into electric energy. By the thermoelectric generation piece 712, partial heat can be recycled, and the temperature of the mixed solution is reduced in an energy conversion manner without additional energy consumption; the thermoelectric generation piece 712 absorbs heat and then is cooled by the secondary condensation device 72, so that the power consumption of the secondary condensation device 72 can be reduced, and the thermoelectric generation device is energy-saving, economical and environment-friendly.

As a specific implementation of the secondary cooling device 72: the secondary condensing unit 72 includes a cooling tank 721, a coil 722 is disposed in the cooling tank 721, and a cooling medium is filled in a space between an outer side wall of the coil 722 and the cooling tank 721. Through cooling medium cooling, cooling efficiency is high, and it is convenient to refrigerate. The temperature of the cooling medium is generally controlled to be 0 to 5 ℃.

Further, the acetone recovery tank 8 is placed in a temperature control box 9, and the temperature control box 9 is used for controlling the environmental temperature of the acetone recovery tank 8. A constant temperature water tank or a refrigerator is generally used as the temperature control box 9, and the temperature control box 9 controls the storage environment temperature of the mixed solution of acetone and water to prevent acetone from being volatilized again.

Further, 8 upper ends of acetone recovery tanks are provided with gas outlets, and the pressure of 8 acetone recovery tanks can be relieved, so that the mixed solution of acetone and water can enter 8 acetone recovery tanks. The upper end of the air outlet is connected with a second one-way valve 42 to prevent outside air from entering the acetone recovery tank 8 and condensing into water.

Further, still include adsorption tank 10, adsorption tank 10 both ends opening, adsorption tank 10 intussuseption is filled with the active carbon, adsorption tank 10 one end links to each other with second check valve 42. The acetone gas volatilized from the acetone recovery tank 8 can be adsorbed by the activated carbon to prevent the acetone from leaking out. And the other end of the canister 10 is normally open and in communication with the air.

Preferably, the other end of the adsorption tank 10 is connected with a third check valve 43, and the third check valve 43 can prevent the water vapor of the air from entering the adsorption tank 10, so that the service life of the activated carbon in the adsorption tank 10 is reduced.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an acetone recovery unit, includes wind-collecting cover (1), fan (2), its characterized in that: the fan (2) is arranged in the recovery pipeline (3), one end of the recovery pipeline (3) is connected with the air collecting cover (1), and the other end of the recovery pipeline (3) is connected with the compressor (5) through a first one-way valve (41); compressor (5) are used for compressing the liquefied gas, compressor (5) exit end is connected with condenser (7) through liquid pump (6), condenser (7) are used for condensing the acetone after the liquefaction, condenser (7) exit linkage has acetone recovery tank (8).

2. The acetone recovery device according to claim 1, characterized in that: the condenser (7) comprises a primary condensing device (71) and a secondary condensing device (72), wherein the primary condensing device (71) and the secondary condensing device (72) are connected in series;

one-level condensing equipment (71) includes snakelike cooling tube (711), snakelike cooling tube (711) lateral wall equipartition has a plurality of thermoelectric generation pieces (712), thermoelectric generation piece (712) are used for converting the heat in acetone liquid and the air into the electric energy.

3. The acetone recovery device according to claim 2, characterized in that: the secondary condensation device (72) comprises a cooling box (721), a spiral pipe (722) is arranged in the cooling box (721), and a cooling medium is filled in a space between the outer side wall of the spiral pipe (722) and the cooling box (721).

4. The acetone recovery device according to claim 1, characterized in that: the acetone recovery tank (8) is arranged in a temperature control box (9), and the temperature control box (9) is used for controlling the environment temperature of the acetone recovery tank (8).

5. The acetone recovery device according to any one of claims 1 to 4, wherein: the acetone is retrieved jar (8) upper end and is equipped with the gas outlet, the gas outlet upper end is connected with second check valve (42).

6. The acetone recovery device according to claim 5, wherein: still include adsorption tank (10), adsorption tank (10) both ends opening, adsorption tank (10) intussuseption is filled with active carbon, adsorption tank (10) one end links to each other with the second check valve.

7. The acetone recovery device according to claim 6, wherein: the other end of the adsorption tank (10) is connected with a third one-way valve (43).