KR100414531B1 - Volatile organic compound separator of electric washing machine - Google Patents

Abstract

PURPOSE: A volatile organic compound recovering device in a washing machine is provided to prevent environmental pollution by restricting discharge of volatile organic compound by circulating internal air forcibly, and to reduce energy consumption and the installation space. CONSTITUTION: A volatile organic compound recovering device comprises a case(1); a basket(2) installed in the case to dry the volatile organic compound of the laundry; a wind direction adjuster(3) adjusting the balance for work by regulating the discharge amount of gas including the volatile organic compound from the basket; a recovery unit installed in the case and connected to the wind direction adjuster and an air guide pipe(9) to condense and liquefy the volatile organic compound from air; a blower(5) forcibly circulating air including remaining organic compound through the recovery unit to the basket; an air circulation guide duct(6) guiding air transferred to the blower into the basket; a steam radiator(7) mounted between the outlet of the air circulation guide duct and the basket to heat remaining air to the basket; and a water and oil separator separating the volatile organic compound from the liquid volatile organic compound from the recovery unit.

Description

Volatile organic compound separator of electric washing machine

The present invention, unlike the conventional method to discharge the volatile organic compound (VOC) containing gas vaporized during drying in the washing machine using a solvent such as solvent into the air without any filtering device while forcibly circulating the gas in the device with a powerful blower It is possible to fundamentally prevent environmental and air pollution by collecting until the VOC content discharged in parallel with drying and recovery is less than the standard value, and to recover the VOC recovered during drying and moisture and impurities again. The present invention relates to a volatile organic compound recovery apparatus of a washing machine capable of recycling expensive VOC.

In general, a laundry machine washes laundry using VOCs such as solvents. In order to prevent environmental pollution and to recycle resources, a large amount of evaporated VOCs are mixed in the air discharged from the laundry drying process. The volatile organic compounds must be separated and recovered from the vented air.

In the related art, most of the laundry facilities use only an air purifier having a simple filter structure, thereby causing the environmental pollution by discharging VOC in the air as it is, and thus requiring an apparatus capable of effectively recovering the VOC.

Therefore, there is a need for a recovery device having a strong recovery function as a method for effectively recovering the VOC. However, the conventional recovery device has a number of restrictions in manufacturing installation and use because the unit recovery device constituting the drying device of the laundry facility is configured as a separate unit.

Specifically, the apparatus for separating organic compounds in a conventional laundry facility was to install a recovery device in a case separate from the case in which the dryer of the laundry is formed, and to connect the air outlet of the dryer to the recovery device and the duct. .

In the conventional reclaim device, as the outside air passes through the steam radiator through the blower, the heated air absorbs the material contained in the laundry inside the basket and discharges the air discharged to the outside using a duct to a separate recovery device. When the VOC-containing gas passes through once, the VOC content cannot be lowered below the reference value in the discharged air, so that the VOC and water are recovered to some extent. Unrecovered residual VOCs were released into the atmosphere.

Such a conventional recovery place requires a relatively large installation space by installing a separate recovery device connected to the duct separately from the drying device, and in the case of passing through the cooling device once, the recovery rate of the material is low and thus a large amount of condensation cannot be realized. Since the solvent is discharged to the outside together with the discharged air, the cooling device is installed in at least triple to increase the recovery rate. Not only does the size of the recovery device itself increase in size, but also the power loss increases. The price increase is remarkable.

The present invention is configured in one unit in which a VOC recovery device and a cooling device are integrally formed inside a dryer of a laundry facility, and condensed by air heated in a state containing VOC material inside the basket via the cooling device. Forced circulation until the air containing the VOC material is not discharged to the outside and the VOC content is lower than the standard value by circulating the basket through the steam radiator without releasing the air from the outside to the outside. It will be recovered while continuing to cycle.

Such a present invention can be easily installed in the dryer structure of the laundry facility, no separate installation space is required, and since the operation and management are not necessary, the production cost and use and maintenance cost are low, and the forced circulation method is recovered. Since only one device can be installed, it is small in volume and simple, and it is recovered until the VOC content in the internal air is below the reference value to prevent environmental and air pollution, and the energy recovery effect is high with high recovery rate of VOC.

1 is a perspective view of the present invention

2 is a front view of the present invention

3 is a side view of the present invention

Figure 4 is a perspective view of the induction panel applied to the present invention

Figure 5a is a front view of the wind direction control device

Figure 5b is a side cross-sectional view of the wind direction control device

Figure 6 is a device diagram of the oil and water separator applied to the present invention * Explanation of the symbols for the main parts 1: Case 2: Basket 3: Wind direction control device 4: Recovery device 5: Blower 6: Duct 7: Steam radiator 8: Oil Separator

The present invention for achieving the above object, the case; A basket installed in the case to dry the laundry VOC; A wind direction control device formed under the basket to adjust and block an amount of VOC-containing gas discharged from the basket to adjust a balance of a working environment that may be generated according to a change in temperature, a blowing capacity, or the like; A recovery device connected to the wind direction control device and the air induction pipe while installed in the case, and condensing and liquefying the VOC from the VOC-containing gas; A blower which circulates the air containing the remaining VOC to the basket through the recovery device; An air circulation induction duct for guiding air transferred to the blower to a basket; A steam radiator installed between the discharge side of the air circulation duct and the basket to heat the residual VOC-containing gas flowing into the basket; An oil and water separator for separating the VOC from the liquid VOC mixed liquid recovered from the recovery device. An embodiment of the present invention will be described in detail with reference to the accompanying drawings. 2 is a front view of the present invention, and FIG. 3 shows a side view of the present invention. As referred to in this drawing, the present invention provides a case (1), a basket (2), and a wind direction control device ( 3) a recovery device 4, a blower 5, a duct 6, a steam radiator 7, and an oil / water separator 8. The basket 2, wind direction control device 3, recovery device (4), the blower (5), the duct (6), the steam radiator (7) and the oil / water separator (8) are installed inside the case (1). The basket (2) is formed in the case (1) The VOC is to be evaporated, which is provided with a lock device 20 as a general laundry facility. The burr 21 is formed, the steam radiator 7 is formed in the upper part, and the wind direction adjusting device 3 is formed in the lower part which becomes the outlet of VOC containing gas. VOC-containing gas evaporated from the laundry introduced into the) is discharged, formed on the upper portion of the air induction pipe (9) connected to the recovery device (4) is discharged from the basket (2) VOC-containing gas It is possible to maintain the highest VOC recovery rate at all times by adjusting the balance of working conditions that can be generated by changes in temperature, air blowing capacity, and working environment by blocking, opening, and controlling the strength and weakness of inflow to the recovery device (8). In this case, the structure may be a structure such as a wind direction control device formed in a general air-conditioning device. Specifically, as shown in FIGS. 5A and 5B, a plurality of rotating plates 30 are rotated. When possible, each rotating plate 30 is connected to the upper connecting rod 31 and the lower connecting rod 31a to be rotated at the same time, and the fixed shaft of the adjusting dial 32 fixed to the case 1 and rotating ( When one rotary plate 30 is fixed to 33 and rotates the adjustment dial 32, the rotary plate 30 can be finely opened and closed to adjust the amount of VOC-containing gas flowing into the recovery device 4. Wind direction control The device 3 and the recovery device 4 are connected to the air induction pipe 9. The air induction pipe 9 is formed with a filter 90 inward while the wind direction control device 3 is formed at the inlet side, and the case On the inner side of (1), a corrugated plate 91, which is bent in a wave shape, is formed on the inner side of the case 1 so that the VOC-containing gas that has passed through the filter 90 may be bumped and fixed to the inner side of the case 1. As a result, it buffers the velocity and direction of VOC-containing gas that flows somewhat faster. The filter 90 is a removable high-performance filter, which has a characteristic of appropriately adding or subtracting the amount of VOC-containing gas discharged from the wind direction control device 5 to pass through. The recovery device 4 recovers VOC from the VOC-containing gas discharged from the basket 2 by adsorption by condensation liquefaction using a refrigeration device, and includes a compressor 40 and a cooler (constitution of a conventional refrigeration device). 41, a preheater 42, and a drain pipe 43 disposed in the lower part of the refrigerating device in the case 1. The compressor 40 is composed of a duct 6 as shown in FIG. The cooler 41 is composed of an evaporator of a general refrigerating device, and is connected to the outlet side of the air induction pipe 9 so that a relatively high temperature VOC mixed gas discharged from the basket 2 passes through. Done As the condensed liquid developer to the pipe surface shown by the heat exchange action of the mixed VOC gas is dissolved dew becomes maethyeo. Therefore, the VOC-containing gas discharged from the basket 2 with a large amount of VOC passes through the filter 90 and the cooler 41, and the content of VOC is significantly reduced, resulting in air in which VOC remains. 42. The preheater 42 is configured as a condenser of a general refrigerating device and is installed side by side on the cooler 41. As shown in FIG. The preheater 42 passes through the cooler 41 and condensation occurs in a conventional condenser by air remaining in the temperature of the VOC lowered by the heat exchange action, and is circulated in a state where the temperature is raised to some extent by the heat exchange. The pipe of the cooler 41 and the preheater 42 is a labyrinth heat exchange method in which cooling fins are formed on the outer circumferential surface of the VOC-containing gas to move through a sporadic path, thereby maximizing the contact area to maximize the recovery rate of the VOC. In order to cool the high-temperature compressed heat naturally occurring in the compressor 40 for compressing the refrigerant, a cooling device is required, but in the recovery device 4 of the present invention, the compressor 40 is a blower space of the duct 6. Compressed heat of high temperature without the need for a separate compressor cooling facility by using the cool air passing through the cooler 41 and the preheater 42 because it is installed inside the Not only has the absorbable property, the preheater 42 is continuously installed on one side of the cooler 41 so that the cool air passing through the cooler 41 absorbs heat again while passing through the preheater 42. As the temperature rises, the temperature rises to an appropriate temperature for compressing the condensation liquefaction pressure in the refrigerating device and at the same time preheats the forced circulation air, thereby minimizing heat loss in the steam radiator 7, thereby saving energy. The drain pipe 43 is inclined under the cooler 41 and the preheater 42, and passes through the cooler 41 and the preheater 42. Water is collected and sent to the oil / water separator 8. The movement of the VOC mixed gas blown from the basket 2 to the recovery device 4 is located at the outlet side of the preheater 42. The blower 5 is forcedly circulated to the basket 4 through the duct 6 and the steam radiator 7 through the duct 6 and the steam radiator 7. The duct 6 connects the outlet side of the preheater 42 and the inlet side of the steam radiator 7 in the integrated case 1 so that the VOC passed through the adsorption recovery device 4 remains. Allows gas to circulate through the steam radiator 7 and back into the basket 2, which is a VOC drying unit. The steam radiator 7 introduces air into the basket 2 to evaporate the VOC contained in the laundry. Induction panel 70 is heated to the temperature of about 50 ~ 60 ℃, to minimize the interference between the remaining VOC containing gas flowing through the duct (1) to enter smoothly, is formed VOC-containing To heat the gas The pressure reducing valve 71 which adjusts uniformly and stably maintains the temperature set suitably for collection | recovery, and maximizes a recovery rate is provided.

The induction panel 70 has a narrow upper part and a wide lower part as shown in FIG. 4, and a plurality of trapezoidal passages are arranged at regular intervals. Such an induction panel 70 is formed in the blower 10. The gas rising strongly through the narrow duct 6 is precisely distributed through several trapezoidal passages installed in close proximity to the end of the duct 6, so that the interference between the gases at the upper part of the steam radiator 3 is minimized, causing the gas to disperse. The phenomenon does not occur, and thus the gas entering the induction panel 70 moves along the passage gradually widening downward, and the blowing pressure is lowered to smoothly assist the entry into the steam radiator 7.

As shown in FIG. 6, the oil / water separator 8 supplied with the VOC mixed solution from the recovery device 4 includes a reservoir 80 connected to the drain pipe 43 of the recovery device 4, and a valve 87. A VOC-containing gas intake pipe 81 branching from the air induction pipe 9, and a VOC-mixed liquid suction pipe 82 connected to the volatile organic mixture-containing gas intake pipe 81, with which the VOC mixed solution is withdrawn from the reservoir 80; A VOC container 83 connected to the VOC mixed liquid suction pipe 82; It consists of a discharge pipe 84 connected to the suction side of the blower 5 in the upper portion of the VOC container 83. The reservoir 80 is installed at the lowermost part of the case 1 and recovered to the right as shown in FIG. A drain pipe 43 into which the VOC mixture is introduced from the apparatus 4 is installed, and an outlet pipe 85 is formed on the left side to discharge water, and a lower passage is provided between the drain pipe 43 and the outlet pipe 85. A partition 86 forming the 88 is formed, and an impurity discharge tube 89 is formed at a lower portion thereof. The reservoir 80 stores the VOC mixed liquid 800 recovered by the drain pipe 43, which is stored therein. The VOC mixed solution 800 is separated by the specific gravity difference between water and VOC so that the VOC floats to the top of the water.

Here, the VOC mixed liquid 800 is supplied to the VOC container 83 along the VOC mixed liquid suction pipe 82 by the suction negative pressure of the blower 5 to be separately recovered, and the VOC material 801 collected in the VOC container 83. Since the gas state is condensed in the recovery device 4, it is a pure state with almost no impurities, and thus can be immediately reused without any additional treatment. The discharge pipe 84 on the upper portion of the VOC vessel 83 is a suction port of the blower 5. Gas is separated from the VOC material is circulated to the basket (2) through the duct (6) and the steam radiator (7).

On the other hand, the valve 87 installed in the VOC-containing gas suction pipe 81 may finely adjust the amount of gas inflow, thereby adjusting the amount of VOC material recovered according to the state of operating the device.

Therefore, the suction force to be sucked is adjusted according to the degree of adjusting the valve 87 of the VOC mixed solution suction pipe 82.

The outlet pipe 85 allows water, which is heavier than VOC, to sink to the bottom so that it can be separated separately. When the water surface reaches the height of the outlet pipe 85, it flows out.

The partition 86 separates the water and the VOC in the reservoir 80 to facilitate the recovery of only the VOC.

That is, the lower passage 88 is formed under the partition 86 so that water can flow out toward the outlet pipe 85 so that the VOC mixed liquid 800 flowing through the drain pipe 43 is a space between the partitions 86. And water is collected in the space toward the outlet pipe 85 through the lower passage 88. Thus, the VOC mixed liquid 800 is discharged through the VOC mixed liquid suction pipe 82, and the water is discharged to the outlet pipe. Discharged through the 85, and the impurities are discharged to the impurity discharge pipe 89 formed under the reservoir 80.

The principle of the oil / water separator 8 uses a portion of the powerful suction force of the blower 5, using a VOC-containing gas suction tube 81 and a VOC mixed liquid suction tube 82 having a Y-shape as shown in FIG. VOC material and condensed in the gathered up only the material from the water has a feature to be collected and recycled in a separate VOC container (83).

In more detail, the gas in the device is sucked through the funnel-shaped VOC mixed liquid suction pipe 82, the VOC mixed liquid suction pipe 82 is gradually narrower in cross section, the flow of incoming gas is faster. This blowing pressure may be controlled by adjusting the amount of air sucked from the reservoir 80 by using the valve 87 to control the amount of VOC sucked up. That is, at the Y-shaped central portion formed at the outlet of the valve 87 Due to the suction force of the blower (5) VOC is sucked up by the pressure difference between the inside of the device and the outside air pressure. At this time, the gas flowing quickly through the narrow passage of the VOV mixed liquid suction pipe 82 is slowed down as the tube widens in the upper portion of the VOC container 83, and the sucked-up material naturally flows down the VOC container 83. In addition, the gas sucked into the VOC mixed liquid suction pipe 82 is sent back to the steam radiator 7 through the blower (5).

In FIG. 6, reference numeral 800 denotes a VOC solvent floating on water separated from water due to its small specific gravity, and '801' denotes water that is separated from the VOC solvent.

The present invention forms an internal circulation cycle and operates while being repeatedly circulated without being discharged to the outside until the VOC becomes below the reference value.

According to the present invention, it is possible to easily mount the recovery device of the present invention anywhere in and outside the existing laundry dryer provided in all the businesses that do laundry service industry, reducing manufacturing cost and installation space, and drying machine, recovery device and oil / water separator It is united in one case, so it is easy to operate and operate, and it is easy to use and maintain. Also, by forming an internal circulation cycle until the VOC is absorbed and separated below the reference value, it prevents environmental pollution and It is possible to recycle expensive energy, VOC, with high recovery rate, which greatly saves energy.

Claims (7)

Case 1; A basket (2) installed in the case (1) to dry the VOC of the laundry; It is formed under the basket (2) to control and block the discharge of the VOC-containing gas discharged from the basket (2) to adjust the balance of the working conditions that can be generated according to the change in temperature, blowing ability, work environment Wind direction control device (3); A recovery device (4) installed in the case (1) and connected to the wind direction control device (3) and the air induction pipe (9) to condense and liquefy the VOC from the VOC-containing gas; A blower (5) passing through the recovery device (4) to forcibly circulate air containing residual organic compounds to the basket (2); An air circulation induction duct 6 for guiding air transferred to the blower 5 to the basket 2; A steam radiator (7) installed between the discharge side of the air circulation duct (6) and the basket (2) to heat the residual VOC-containing gas flowing into the basket (2); Volatile organic compound recovery apparatus for a washing machine, characterized in that it comprises an oil and water separator (8) for separating VOC from the liquid VOC mixed liquid recovered from the recovery device (4). 2. A volatile organic compound recovery apparatus for a washing machine according to claim 1, wherein a filter (90) is formed to appropriately adjust the amount of VOC-containing gas discharged from the wind direction control device (3). The apparatus for recovering volatile organic compounds of a washing machine according to claim 1, wherein a corrugated plate (91) is provided in the air induction pipe (9) to relax the moving speed of the VOC-containing gas. 2. The recovery device (4) according to claim 1, wherein the recovery device (4) is a cooler (41) for liquefying the air flowing from the air induction pipe (9), and air placed on one side of the cooler (41) and supplied to the steam radiator (7). A preheater 42 for preheating the water, and a drain pipe 43 installed at the lower part of the cooler 41 and the preheater 42 to collect a solution containing the condensed liquefied VOC and supply it to the oil / water separator 8. Volatile organic compound recovery apparatus of the washing machine comprising a. The upper and lower parts of the panel according to claim 1, wherein a plurality of panels are constantly arranged to minimize interference of residual VOC-containing gas flowing through the duct 6 and to facilitate entry into the steam radiator 7. Volatile organic compound recovery apparatus for a washing machine comprising an induction panel 70 to form a wide space. The oil / water separator (8) is formed with a drain pipe (43) into which the VOC mixture is introduced from the recovery device (4), and an outlet pipe (85) from which moisture is discharged, and the drain pipe (43) and the outlet. A reservoir 80 in which a partition 86 is formed between the pipes 85; A VOC mixed liquid suction pipe (82) connected to the VOC-containing gas suction pipe (81) with which the VOC mixed liquid is withdrawn from the reservoir (80); A VOC container (83) connected to the VOC liquid mixture suction pipe (82); Volatile organic compound recovery apparatus of the washing machine, characterized in that the discharge pipe (84) connected to the suction side of the blower (5) above the VOC container (83). 7. The apparatus for recovering volatile organic compounds of a washing machine according to claim 6, wherein the VOC mixed liquid suction pipe (82) includes a VOC-containing gas suction pipe (81) having a valve (87) branched from the air induction pipe (9).