KR101239181B1 - Outdoor voc retrieving system with suction pump - Google Patents

Abstract

PURPOSE: A volatile organic compound collecting apparatus for outdoor use is provided to increase the collection rate while using the same amount of electricity by conducting multiple stages of collecting processes using more than to collecting chambers inside a cooling room. CONSTITUTION: A volatile organic compound collecting apparatus for outdoor use includes a suction unit(10), a heating unit(20), a collecting unit(40), a spraying unit(30), a scavenge port(46), and an air discharging pipe. The suction unit includes a suction pipe connected to an oil vapor generation source, and a suction pump(13) sucking oil vapor from the suction pipe. The heating unit heats the oil vapor to the predetermined temperature range. The collecting unit includes a cooling main body(451) with a cooling chamber, a partition wall(43), and plural cooling pins. The partition wall divides the cooling chamber to a first collecting chamber(41) and a second collecting chamber(42). The cooling pings receive coldness from the cooling main body, and condense the oil vapor.

Description

Outdoor Volatile Organic Compound Recovery System with Suction Pump {OUTDOOR VOC RETRIEVING SYSTEM WITH SUCTION PUMP}

The present invention relates to an apparatus for recovering a volatile organic compound, and more particularly, even when the vapor pressure of the vapor generation source is low, the vapor can be efficiently sucked and recovered, and at the same time, the recovery process is performed in multiple stages to maximize recovery and reduce power consumption. The present invention relates to an outdoor volatile organic compound recovery device equipped with a suction pump.

Organic solvents are widely used for dissolving adhesive materials in large-capacity dilution tanks, such as chemical plants, or for diluting paints or washing products in printing paint manufacturing workshops.

The organic solvent contains a large amount of volatile organic compounds (VOC: Volatile Organic Compound), which is very harmful to the human body when the organic solvent is vaporized in the use process of the organic solvent and released into the air. In addition, since the pollutant is the source of ozone depletion and global warming, legal regulations on emissions have recently been tightened.

However, the existing vapor recovery apparatus has many problems in installation operation as well as low recovery rate, excessive production cost, despite the large size and large power consumption due to the complicated structure.

For example, since the oil vapor pressure of most of the above-mentioned oil vapor generating sources is not constant in working conditions or time zones, inducing efficient inflow into a recovery device is an important factor of the recovery rate. Nevertheless, the conventional recovery device has a problem that the recovery rate is low because there is no separate device for the introduction of oil vapor.

In addition, the conventional recovery device is a nature that must be installed outdoors according to its size and use, the recovery rate is affected by changes in outside temperature, such as hot summer or cold winter, there is a problem that it is difficult to ensure a stable operation.

Therefore, an object of the present invention, the steam can be properly introduced irrespective of the oil vapor pressure of the steam generator, the self-air circulation in the suction pump through the pressure circulation control tube when the vacuum pressure in the steam generator caused by excessive suction of the suction pump The present invention provides an outdoor volatile organic compound recovery apparatus equipped with a suction pump that controls forced suction and induces a natural flow of oil vapor.

In addition, another object of the present invention, it is possible to perform a multi-step recovery procedure by dividing the cooling chamber into two or more recovery chambers, it is possible to represent a higher recovery rate with the same power, it is less power consumption at the same recovery rate recovery efficiency It is to provide an outdoor volatile organic compound recovery device equipped with a suction pump that can maximize the.

In addition, another object of the present invention is to provide an outdoor volatile organic compound recovery apparatus equipped with a suction pump that can control the temperature of the oil vapor flowing through the heating portion to maintain the optimum set temperature range to achieve an optimum recovery rate. .

According to an embodiment of the present invention, the suction part having a suction pipe connected to the source of the steam generation, and a suction pump installed in the suction pipe to introduce the vapor; A heating unit for heating the oil vapor sucked into the suction unit to a set temperature range; A cooling body forming a cooling chamber therein, a partition wall separating the cooling chamber into a first recovery chamber and a second recovery chamber, and a first recovery chamber and a second recovery chamber, and transferring cold air from the cooling body. A recovery unit having a plurality of cooling fins to condense the vapor; An injection unit provided with injection holes for injecting oil vapor heated in the heating unit into the first recovery chamber; A drain port for discharging the liquid organic solvent containing the volatile organic compound condensed and recovered through the first and second recovery chambers, and an air discharge pipe through which the air from which the organic solvent is recovered is discharged to the outside; It is achieved by an outdoor volatile organic compound recovery device equipped with a suction pump.

Here, the suction pipe has a first suction pipe connecting between the steam generator and the suction pump, and a second suction pipe connecting between the suction pump and the heating unit, between the first suction pipe and the second suction pipe. The pressure circulation control pipe may be further provided to configure a pressure circulation path leading to the first suction pipe, the suction pump, the second suction pipe, the pressure circulation control pipe, and the first suction pipe.

Here, the set temperature range is 20 ~ 35 ℃, the heating unit, the temperature sensor is installed in one or more of the housing to form a heating space, the suction pipe or the injection inlet port for sensing the temperature of the vapor, and the housing It may include a heating unit provided outside, and a heating control unit for operating the heating unit when the temperature of the oil vapor is less than the set temperature range as a result of the detection of the temperature sensor.

A second heat generating unit provided inside the cooling body to prevent frost formed on the cooling fins and connected to the drain hole or connected to the drain port to prevent freezing of the oil pipe in which water and organic solvent are separated and discharged. It may further comprise one or more of.

The injection unit further includes an injection chamber in communication with the heating unit, and an overpressure valve provided between the injection chamber and the discharge pipe. When the pressure inside the injection chamber is equal to or greater than a set pressure, the oil vapor in the injection chamber is discharged. It can be discharged through the discharge pipe.

Therefore, according to the outdoor volatile organic compound recovery apparatus equipped with the suction pump according to the present invention, even if the oil vapor pressure generated from the oil vapor source is low by mounting the suction pump, it can be efficiently sucked, on the contrary, excessive suction of the suction pump In the vacuum pressure generation of the steam generator according to the induction of the self-air circulation in the suction pump through the pressure circulation control tube to maintain a constant pressure inside the steam generator.

In addition, by dividing the cooling chamber into two or more recovery chambers, a multi-stage recovery procedure can be performed, resulting in a higher recovery rate with the same power, and consuming less power at the same recovery rate, thereby maximizing recovery efficiency. The consumption can be reduced.

In addition, the temperature of the oil vapor flowing through the heating unit can be maintained in a suitable set temperature range that exhibits an optimum recovery rate.

1 is a perspective view of an outdoor volatile organic compound recovery apparatus equipped with a suction pump according to an embodiment of the present invention;
2 is a cross-sectional view of the outdoor volatile organic compound recovery apparatus equipped with the suction pump shown in FIG.
3 is an enlarged perspective view of the suction unit and the heating unit illustrated in FIG. 2;
4 is a jet plate according to an embodiment of the present invention,
Figure 5 is a side perspective view of the recovery portion according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 and 2, the outdoor volatile recovery device 1 equipped with a suction pump according to an embodiment of the present invention, the suction unit 10 for sucking the vapor and the vapor to heat the set temperature range A heating unit 20, a recovery unit 40 for recovering the liquid organic solvent containing volatile organic compounds by cooling and condensing the heated oil vapor, the injection unit 30, the discharge to discharge the recovered organic solvent A portion 50 is included.

2 and 3, the suction unit 10 includes suction pipes 11a and 11b connected to an oil vapor generating source, and a suction pump 13 installed in the suction pipes 11a and 11b to introduce oil vapor.

The vapor generating source may be provided in various kinds, and for example, it is possible to use any type of solvent wherever volatile organic compounds evaporate, such as a dilution tank or drying apparatus for manufacturing adhesives installed in a chemical plant, or washing printed paint manufacturing products. .

The reason for providing the suction pump 13 in the present invention is that the oil vapor generated from the oil vapor generator is naturally generated, and the capacity of the oil vapor generator varies depending only on the oil vapor pressure in some cases. When the oil vapor pressure is low, the oil vapor is lost by the gap of the lid or the connection portion of the tank, such as the steam generation source, and thus the amount of oil vapor flowing into the recovery device through the connecting pipe is reduced, which may cause a problem that the recovery rate itself decreases.

Thus, by installing the suction pump 13 to efficiently suck the vapor generated from the steam generator, at the same time to provide a pressure circulation control pipe 15 to be described later to prevent the vacuum atmosphere of the steam generator due to excessive suction.

The suction pipes 11a and 11b are connected to the steam generator so as to suck the steam.

The suction pipes 11a and 11b have a first suction pipe 11a connecting between the vapor generator and the suction pump 13, and a second suction pipe 11b connecting between the suction pump 13 and the heating part 20. Can be.

Here, the pressure circulation control pipe 15 may be further provided between the first suction pipe 11a and the second suction pipe 11b.

In this case, the pressure circulation control pipe 15 passes through the first suction pipe 11a, the suction pump 13, the second suction pipe 11b, and the pressure circulation control pipe 15 to the first suction pipe 11a. Construct a circuit.

Thus, when a vacuum pressure such as over suction by the suction pump 13 is generated in an oil vapor generating source such as a working tank, it induces its own air circulation in the suction pump 13.

Therefore, it is possible to prevent the overload of the suction pump 13, to prevent the inside of the steam generator to become a vacuum atmosphere to maintain a constant pressure, even if the suction pump 13 is not operated due to power failure or failure, Through the pressure circulation control tube 15 to allow the flow into the second suction pipe (11b).

The heating unit 20 heats the oil vapor sucked into the suction unit 10 to a set temperature range.

That is, the outdoor volatile organic compound recovery device 1 equipped with the suction pump according to the present invention is installed outdoors, and is used in low outdoor air conditions such as winter as well as hot air conditions.

On the other hand, when recovering the organic solvent in the recovery unit 40 to recover the organic solvent by cooling and condensing the vapor, condensation in the cooling fin 452 only when the temperature of the introduced oil vapor compared to the cooling temperature has a temperature difference of more than the appropriate temperature. This happens well. If the temperature of the incoming steam is lower than the appropriate temperature, not only is it difficult to properly condense on the cooling fins 452, but also frost or freezing may occur on the cooling fins 452 due to moisture in the steam.

Therefore, the temperature of the cooling fin 452 is controlled to maintain the proper temperature by controlling the cooling module 45, while maintaining the temperature of the incoming oil vapor also in the appropriate temperature range to achieve a constant recovery rate. As a result, it was found that 20 ~ 35 ℃ is the most suitable result of the applicant's repeated experiments, this is called the set temperature range.

The heating unit 20 may include, for example, a housing 21 forming a heating space, a temperature sensor (not shown) installed at the suction pipe 11 or the injection unit inlet 31 to sense the temperature of the oil vapor, and the housing. It may include a heating element 23 provided on the outside of the 21 and the heating control unit for operating the heating element 23 when the temperature of the oil vapor is less than the set temperature range as a result of the detection of the temperature sensor.

In the above case, since the temperature of the oil vapor discharged from the heating unit 20 is more important than the temperature of the oil vapor flowing into the heating unit 20, it is preferable that the temperature sensor is basically installed at the injection unit inlet 31 side. In addition, the suction pipe 11 may be installed.

Thus, the heating control unit is operated when the oil vapor discharged from the heating unit 20 is less than the set temperature range to heat the oil vapor, and when the temperature of the discharged vapor exceeds the set temperature range, Stop operation.

On the other hand, since there is a risk of fire or the like when the vapor directly contacts the heating element 23, the heating element 23 is provided by a heating line or the like outside the housing 21 of the heating unit 20, as shown in FIG. Oil vapor can be prevented from being directly exposed to the heat source.

The injection unit 30 injects the oil vapor heated in the heating unit 20 to the first recovery chamber 41.

Here, the recovery part 40 will be described first for convenience.

The recovery part 40 includes a cooling body 451 for forming a cooling chamber therein, a partition 43 for separating the cooling chamber into a first recovery chamber 41 and a second recovery chamber 42, and a first recovery. It is provided over the chamber 41 and the second recovery chamber 42 and includes a plurality of cooling fins 452 for receiving cold air from the cooling body 451 to condense the oil vapor.

2 and 5, the cooling chamber is formed surrounded by the cooling main body 451. The cooling chamber is divided into a first recovery chamber 41 and a second recovery chamber 42 by the partition 43.

Here, dividing the cooling chamber into two or more recovery chambers is to maximize the recovery rate by first passing the recovery fins through the cooling fins 452 and secondarily recovering the recovered steam.

Therefore, when the same power is used, the recovery device 1 according to the present invention may exhibit a higher recovery rate, and at the same recovery rate, less power may be consumed, thereby reducing power consumption.

Here, in the present invention, two recovery chambers are described as an example, but it can be divided into three or more as necessary.

Meanwhile, in FIG. 3, the second recovery chamber 42 is formed on the outside of the first recovery chamber 41, whereas the first recovery chamber 41 is on the outside of the second recovery chamber 42. It is also possible to form on the side.

Here, the cooling fins 452 provided in the first recovery chamber 41 and the cooling fins 452 provided in the second recovery chamber 42 may be provided to have the same interval and the same cooling area, and may be provided at different intervals and from each other. It may be provided to have another cooling area.

The cooling fins 452 may be made of a material having high thermal conductivity, and for example, may be formed of a material such as aluminum or copper.

The cooling module 45 may include a cooling body 451, a cooling fin 452, a compressor 453, a condenser 454, a capillary tube 455, and an evaporator 456.

The cooling body 451 is cooled by the action of the evaporator 456 attached to the inside of the wall, and delivers cold air to the cooling fins 452 in contact with the cooling body 451.

In the machine room of the cooling main body 451, a general cooling device such as a compressor 453 for compressing a refrigerant gas, a condenser 454 for condensing the compressed refrigerant, a capillary tube 455, and an evaporator 456 is configured. do.

The inside of the wall of the cooling body 451 may be filled with urethane foam for the thermal insulation effect.

In this case, an evaporator 456 and a first heat generating part 457 for removing frost may be further provided inside the wall of the cooling body 451 filled with urethane foam.

That is, when the content of water mixed with the oil vapor is high or the temperature of the oil vapor is lower than the cooling condensation temperature, frost or freezing may occur on the cooling fin 452. On the other hand, the cooling fins 452 are formed to be densely in order to maximize the cooling area, if frost or frost occurs can interfere with the circulation of the vapor. Thus, frost or freezing generated in the cooling fins 452 may be removed through the first heat generating unit 457.

On the other hand, the bottom of the cooling body 451 has a drain port 46 for discharging the organic solvent, connected to the drain port 46 to prevent freezing in the drain pipe 52 is separated and discharged water and organic solvent. The second heat generating unit 54 may be further provided.

Here, reference numeral 32b shown in FIG. 1 denotes a switch for turning on / off the recovery device 1 according to the present invention, and reference numeral 32c denotes an input unit for setting the temperature of the cooling fin 452 in the cooling module. Indicates.

Returning to the spray unit 30, the spray plate 35 is provided on the bottom surface of the spray unit 30, forming a boundary with the recovery unit 40. In the injection unit 30, a plurality of injection holes 37 are formed at positions corresponding to the first recovery chamber 41.

The number and cross-sectional area of the injection hole 37 may be provided in various changes as necessary.

On the other hand, at the position corresponding to the second recovery chamber 42 in the injection plate 35 is formed with a discharge hole 47 through which the recovered and discharged air is discharged while passing through the second recovery chamber 42.

Thus, as shown in FIG. 2, the oil vapor introduced into the injection chamber 33 flows into the first recovery chamber 41 through the injection hole 37 and is cooled and condensed by the cooling fin 452. The organic solvent is collected on the bottom surface and discharged to the drain port 46.

Meanwhile, the oil vapor passing through the first recovery chamber 41 flows into the second recovery chamber 42 in the center and is recovered secondarily through the cooling fin 452, and the remaining air is discharged to the upper discharge hole 47. It is discharged to the air discharge pipe 51 through.

In this case, when the pressure of the oil vapor introduced into the injection chamber 33 is excessive, the steel ball 39 provided in the overpressure valve 38 is raised to allow some oil to escape to the air discharge pipe 51, In fact, the pressure inside the 33 is prevented from rising excessively.

The discharge unit 50 is provided to discharge the liquid organic solvent containing the volatile organic compound condensed and recovered through the recovery unit 40.

Discharge unit 50 is an exhaust pipe 52 for separating and discharging the liquid organic solvent introduced through the drain port 46 with water once again, the organic solvent storage chamber 53 and the organic solvent storage chamber 53 It further includes an air outlet 55 for discharging the smell of the oil vapor diffused therein to the outside.

1: Outdoor Volatile Organic Compound Recovery System with Suction Pump
10: suction part
11a: first suction pipe 11b: second suction pipe
13: suction pump 15: pressure circulation control pipe
20: heating part
21: housing 23; Heating element
30: injection unit
31: injection part inlet 33; Spray room
35 injection plate 37 injection hole
38: overpressure valve 39: steel ball
40: recovery unit
41; First Recovery Room 42: Second Recovery Room
43: bulkhead 45: cooling module
451: cooling body 452: cooling fin
453: compressor 454: condenser
455 capillary 456 evaporator
457: first heat generation unit 46: drainage port
47: discharge hole
50: discharge part
51: air discharge pipe 52: oil pipe
53 organic solvent storage room 54 second heat generating unit
55; Air outlet

Claims (5)

A suction unit having a suction pipe connected to an oil vapor generating source, and a suction pump installed at the suction pipe to introduce oil vapor;
A heating unit for heating the oil vapor sucked into the suction unit to a set temperature range;
A cooling body forming a cooling chamber therein, a partition wall separating the cooling chamber into a first recovery chamber and a second recovery chamber, and a first recovery chamber and a second recovery chamber, and transferring cold air from the cooling body. A recovery unit having a plurality of cooling fins to condense the vapor;
An injection unit provided with injection holes for injecting oil vapor heated in the heating unit into the first recovery chamber;
A drain port for discharging the liquid organic solvent containing the volatile organic compound condensed and recovered through the first and second recovery chambers, and an air discharge pipe through which the air from which the organic solvent is recovered is discharged to the outside; Volatile organic compound recovery system for outdoor use with suction pump. The method of claim 1,
The suction pipe has a first suction pipe connecting between the steam generator and the suction pump, and a second suction pipe connecting between the suction pump and the heating part,
A pressure circulating pipe is further provided between the first suction pipe and the second suction pipe to configure a pressure circulation path leading to the first suction pipe, the suction pump, the second suction pipe, the pressure circulation control pipe, and the first suction pipe. Outdoor volatile organic compound recovery device equipped with a suction pump. The method of claim 1,
The set temperature range is 20 ~ 35 ℃,
The heating unit may include a housing forming a heating space, a temperature sensor installed at at least one of the suction pipe or the inlet of the injection unit, for detecting a temperature of oil vapor, a heating unit provided outside the housing, and a sensing result of the temperature sensor. An outdoor volatile organic compound recovery device, characterized in that it comprises a heat generation control unit for operating the heat generating unit when the temperature of the vapor is less than the set temperature range. The method of claim 1,
A second heat generating unit provided inside the cooling body to prevent frost formed on the cooling fins and connected to the drain hole or connected to the drain port to prevent freezing of the oil pipe in which water and organic solvent are separated and discharged. Outdoor volatile organic compound recovery device equipped with a suction pump, characterized in that it further comprises one or more of. The method of claim 1,
The injection unit further includes an injection chamber in communication with the heating unit, and an overpressure valve provided between the injection chamber and the discharge pipe. When the pressure inside the injection chamber is equal to or greater than a set pressure, the oil vapor in the injection chamber is discharged. Outdoor volatile organic compound recovery device equipped with a suction pump, characterized in that the discharge to the discharge pipe.

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