KR102168303B1 - Air Supply System and Method with Exhaust Gas - Google Patents

Abstract

The present invention relates to a system and method for supplying regenerative air using combustion flue gas to efficiently use energy by recycling combustion heat generated in a combustion process of a regenerative combustor. The present invention has the effect of reducing thermal energy and electric energy by using the heat exhausted from the regenerative combustion unit as regeneration air of the dehumidifier.

Description

Regeneration air supply system and method using combustion exhaust gas {Air Supply System and Method with Exhaust Gas}

The present invention relates to a regenerative air supply system and method using combustion exhaust gas, and to a regenerative air supply system and method using combustion exhaust gas to efficiently use energy by recycling combustion heat generated in the combustion process of a regenerative combustion combustor. .

In general, a vehicle painting booth sprays fine droplets of paint to apply color to the vehicle. In this process, a large amount of volatile organic compounds (VOCs), which are very harmful to the human body, are generated. In addition, the coating process is an essential requirement to maintain the optimum temperature and humidity in order to secure the best appearance quality and weather resistance quality.

Accordingly, in order to realize temperature control, humidity control, and VOC removal in the painting booth, an adsorption dehumidifier is installed as an air supply system, and a concentrator and a regenerative thermal oxidizer (RTO) are installed and implemented as an exhaust system.

The concentrator constituting the exhaust system adsorbs VOCs to zeolite and releases clean air to the atmosphere, and the VOCs adsorbed in the concentrator are concentrated during the regeneration process and transferred to RTO to undergo burner combustion, heat storage, and purge processes. It is released to the atmosphere after removing VOCs. At this time, combustion heat of about 800°C is generated during the combustion process, and after a certain portion is recovered through a recovery device, most of it is discharged to the atmosphere.

The adsorption-type dehumidifier constituting the air supply system includes a cabinet in which dehumidification and regeneration are formed, a dehumidification rotor such as silica gel or zeolite is impregnated with a dehumidifying agent, and a dehumidification rotor rotatably installed in the regeneration and dehumidification area in the cabinet, and the dehumidification area to remove moisture. And a process air supply device for supplying the process air for, and rotor drying means for heating a regeneration heater to be described later in the regeneration area. And while slowly rotating the dehumidifying rotor coated with the dehumidifying agent, moisture in the air passing through the dehumidifying rotor is removed. And the rotor drying means is provided on the circulation passage and the circulation passage configured to pass through the dehumidification rotor, a regeneration fan that circulates internal air containing moisture collected by the dehumidification rotor, and a regeneration fan provided on the circulation passage and internal air or It consists of a regeneration heater that heats the dehumidification rotor.

However, since the conventional adsorption dehumidifier is configured to generate heated air of about 140 to 200°C using steam or electric energy as a heat source for heating the regeneration heater, there is a problem in that energy consumption is excessive. In addition, in the case of RTO, high-temperature combustion heat is generated during the combustion process, and this combustion heat is mostly released to the atmosphere without recycling. Therefore, there is a demand for technology development to recycle the combustion heat generated in the combustion process of RTO as a heating source for the dehumidification rotor of the adsorption dehumidifier.

Korean Patent Publication No. 10-1579206 Korean Patent Publication No. 10-2016-0024436

An object of the present invention to solve the problems of the prior art as described above is to recycle the combustion heat generated in the combustion process of the regenerative combustor as a heating source for the dehumidifying rotor of the dehumidifier, and supply regeneration air using combustion exhaust gas to efficiently use energy. It is to provide a system and method.

In order to achieve the above object, the present invention provides a concentrator for concentrating VOCs exhausted from a drying unit, a regenerative combustion combustor for burning VOCs concentrated in the concentrator, and a dehumidifier for supplying air from which moisture has been removed to the drying unit using a dehumidifying rotor. An air conditioning method having, comprising: a dehumidification supplying process of supplying exhaust gas generated in a combustion process of the heat storage type combustor to the dehumidifier as regeneration air; And a heating process in which the dehumidifier heats the dehumidifying rotor by using the regenerated air. It provides a method of supplying regenerated air using combustion exhaust gas.

In addition, the dehumidification supply process may include: a mixing step in which exhaust gas generated during the combustion process of the heat storage type combustor and external air supplied from the outside air supply unit are mixed with regeneration air in a combustion mixing box; And a supply step of supplying the regenerated air mixed in the combustion mixing box to the dehumidifier as regenerated air.

In addition, the mixing step may include measuring, by a temperature measuring unit, a temperature of the exhaust gas generated in the combustion process of the regenerative combustor; Transmitting the temperature of the exhaust gas measured by the temperature measuring unit to a control unit; And when the temperature of the exhaust gas does not correspond to a preset temperature range, the control unit further comprises adjusting an amount of outside air supplied from the outside air supply unit to the combustion mixing box. Provides a method of supplying air.

In addition, the dehumidification supply process includes: a heat exchange step in which exhaust gas generated in the combustion process of the heat storage type combustor is heat-exchanged from the heat exchanger to regenerated air; And a supply step of supplying the regenerated air heat-exchanged in the heat exchanger to the dehumidifier as regenerated air.

Further, after the supplying step, a measuring step of measuring a temperature of the regenerated air supplied to the dehumidifier by a temperature measuring unit; A delivery step of transferring the temperature of the regenerated air measured by the temperature measuring unit to a control unit; And a purge step of discharging the regenerated air to the outside without supplying the regenerated air to the dehumidifier when the temperature of the regenerated air does not correspond to a preset temperature range. Provide a supply method.

In addition, before the dehumidification supplying process, an adsorption process in which VOCs exhausted from the drying unit are adsorbed by adsorption of the concentrator; A concentration process in which VOCs adsorbed in the adsorption of the concentrator are concentrated by regeneration air; A delivery process of transferring the VOCs concentrated in the concentrator to the regenerative burner; A removal process of removing VOCs by heat storage, heat dissipation, and combustion by the heat storage type combustor receiving the concentrated VOCs from the concentrator; A concentrated mixing process in which the exhaust gas generated in the combustion process of the regenerative type combustor and the cooling air discharged from the concentrator are mixed with regeneration air in the concentrated mixing box; And a concentrated supplying process in which the regenerated air mixed in the concentrated mixing box is supplied to the concentrator.

In addition, the drying unit provides a method of supplying regeneration air using combustion exhaust gas, characterized in that it includes a painting booth or a dry room.

In addition, the present invention is an air conditioning system having a concentrator for concentrating VOCs exhausted from the drying unit, a regenerative combustion combustor for burning the VOCs concentrated in the concentrator, and a dehumidifier for supplying the dehumidified air to the drying unit using a dehumidifying rotor. According to claim 1, Combustion mixing box to supply the exhaust gas generated in the combustion process of the regenerative combustor; And an outdoor air supply unit supplying outside air to the combustion mixing box, wherein the combustion mixing box generates regeneration air by mixing the exhaust gas and the outside air, and the regeneration air generated by the combustion mixing box is supplied to the dehumidifier. , The dehumidifier provides a regeneration air supply system using combustion exhaust gas, characterized in that heating the dehumidification rotor using the regeneration air delivered from the combustion mixing box.

In addition, a temperature measuring unit for measuring the temperature of the exhaust gas generated in the combustion process of the regenerative combustor; An opening/closing driver configured to control an opening angle of the outside air supply unit according to a control signal to control the amount of outside air supplied to the combustion mixing box by the outside air supply unit; And a control unit for transmitting a control signal to the opening/closing driver when the temperature of the exhaust gas transmitted from the temperature measuring unit does not correspond to a preset temperature range, providing a regeneration air supply system using combustion exhaust gas, characterized in that it further comprises do.

In addition, the present invention is an air conditioning system having a concentrator for concentrating VOCs exhausted from the drying unit, a regenerative combustion combustor for burning the VOCs concentrated in the concentrator, and a dehumidifier for supplying the dehumidified air to the drying unit using a dehumidifying rotor. Wherein the heat exchanger receives the exhaust gas generated in the combustion process of the heat storage type combustor, wherein the heat exchanger generates regeneration air by exchanging heat so that the temperature of the exhaust gas is lowered, and the regeneration air generated by the heat exchanger is the dehumidifier. It is supplied to, and the dehumidifier provides a regeneration air supply system using combustion exhaust gas, characterized in that heating the dehumidification rotor using the regeneration air received from the heat exchanger.

In addition, a temperature measuring unit that measures the temperature of the regeneration air supplied to the dehumidifier by the heat exchanger; A purge unit located between the heat exchanger and the dehumidifier and discharging regenerated air supplied by the heat exchanger to the dehumidifier to the outside according to a control signal; And a control unit for transmitting a control signal to the purge unit and discharging the regenerated air to the outside when the temperature of the regeneration air received from the temperature measuring unit does not correspond to a preset temperature range. It provides a regeneration air supply system using the combustion exhaust gas.

In addition, the drying unit, the concentrator, the regenerative combustion unit, and the dehumidifier provides a regeneration air supply system using combustion exhaust gas, characterized in that the wireless communication is wirelessly connected to each other.

In addition, the drying unit provides a regeneration air supply system using combustion exhaust gas, characterized in that it includes a painting booth or a dry room.

The present invention has the effect of reducing thermal energy and electric energy by using the heat exhausted from the regenerative combustion unit as regeneration air of the dehumidifier.

In addition, by appropriately controlling the amount of outside air supplied by the outside air supply unit according to the temperature change of the exhaust gas discharged by the regenerative combustion unit, the combustion mixing box has the effect of delivering regenerated air at a constant temperature to the dehumidifier.

In addition, there is an effect of selectively transferring regenerated air that maintains an appropriate temperature among regenerated air heat-exchanged in the heat exchanger to the dehumidifier.

1 is a diagram illustrating a regeneration air supply system using combustion exhaust gas according to a first embodiment of the present invention.
2 is a diagram illustrating an opening/closing control means of a regeneration air supply system using combustion exhaust gas according to a first embodiment of the present invention.
3 is a diagram illustrating a regeneration air supply system using combustion exhaust gas according to a second exemplary embodiment of the present invention.
4 is a diagram illustrating a heat exchange control box of a regeneration air supply system using combustion exhaust gas according to a second exemplary embodiment of the present invention.
5 is a diagram illustrating a method of supplying regeneration air using combustion exhaust gas according to a first embodiment of the present invention.
6 is a diagram illustrating a method of supplying regeneration air using combustion exhaust gas according to a second exemplary embodiment of the present invention.

Hereinafter, a system and method for supplying regeneration air using combustion exhaust gas according to a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating a regeneration air supply system using combustion exhaust gas according to a first exemplary embodiment of the present invention, and FIG. 2 is a diagram illustrating a regeneration air supply using combustion exhaust gas according to a first exemplary embodiment of the present invention. It is a diagram illustrating the opening and closing control means of the system.

1 and 2, the regeneration air supply system using combustion exhaust gas according to the first preferred embodiment of the present invention includes a drying unit 100, a concentrator 200, a regenerative burner 300, and a concentration mixing box 400. ), a combustion mixing box 500, an opening/closing control means 512, and a dehumidifier 600.

The drying unit 100 may include, for example, a paint booth for applying color to a vehicle or a dry room for drying various items. Paint booths or dry rooms require hot air, that is, regeneration air to control the internal humidity.

The concentrator 200 adsorbs and concentrates VOCs by rotation of the rotor. The rotor is divided into an adsorption zone, a regeneration zone, and a cooling zone, and repeats adsorption, regeneration, cooling and adsorption while gradually rotating. In the adsorption area, VOCs are adsorbed using an adsorbent such as zeolite. In the regeneration zone, regenerated air of about 200°C is supplied to heat the adsorbent in the adsorption zone, thereby concentrating the adsorbed VOCs molecules, and the concentrated VOCs are transferred to the regenerative burner 300.

The cooling zone is to cool the rotor to less than 50℃, which is an appropriate temperature for adsorption, and the air used at this time is used by supplying part of the air supplied from the exhaust fan 112 to the cooling zone, and air discharged from the cooling zone. Is delivered to the concentration mixing box 400 to be described later. In addition, some of the air discharged from the regeneration area or the cooling area may be transferred to the chimney 310 and discharged to the outside.

In addition, a filter box 110 and an exhaust fan 112 are further included between the dryer and the concentrator 200. The filter box 110 is a conventional filtering device that filters foreign substances of air exhausted from the drying unit 100. The exhaust fan 112 is a conventional fan for exhausting the air exhausted from the drying unit 100 to the concentrator 200.

The regenerative burner 300 is for preventing air pollution by burning the concentrated VOCs, that is, the exhaust gas delivered from the concentrator 200, and recovers the waste heat of the exhaust gas as much as possible using ceramic with a large surface area, so that the heat recovery efficiency is 90 % Or more, and fuel consumption can be drastically reduced. And between the concentrator 200 and the regenerative combustor 300, a concentration supply fan 120 for transferring the exhaust gas received from the concentrator 200 to the regenerative combustor 300 may be further provided. In addition, a burner fan 320 and a purge fan 330 are further connected to the regenerative burner 300. The burner fan 320 requires a burner to initially operate the regenerative burner 300, and is to supply air used for combustion of the burner. The purge fan 330 is responsible for supplying purge air for the air blocking function of the heat storage burner 300. In addition, some of the exhaust gas generated in the combustion process of the regenerative combustor 300 may be supplied to the chimney 310 and discharged to the outside.

In the concentrated mixing box 400, the exhaust gas generated in the combustion process of the regenerative combustor 300 and the cooling air discharged from the concentrator 200 are mixed with regeneration air. That is, the exhaust gas generated in the combustion process of the regenerative combustor 300 is very high at about 800° C., and thus it cannot be supplied to the concentrator 200 as it is. Accordingly, the cooling air discharged from the concentrator 200 is mixed with the exhaust gas generated in the combustion process of the regenerative combustor 300 to generate regeneration air. The temperature of the regenerated air is as low as 200°C, and can be supplied to the regenerated air for the concentrator 200.

Combustion mixing box 500 is a core configuration of the present invention, the relatively high temperature exhaust gas generated in the combustion process of the regenerative combustor 300, and fresh outdoor air with a relatively low temperature supplied from the outside air supply unit 510 By mixing to generate regeneration air for the dehumidifier 600. The temperature of the regenerated air generated in the combustion mixing box 500 is as low as 140°C to 200°C, and thus can be supplied to the regenerated air for the dehumidifier 600.

On the other hand, when the temperature of the exhaust gas generated in the combustion process of the regenerative combustor 300 is higher or lower than necessary, the outdoor air supply unit 510 adjusts the amount of outdoor air supplied to the combustion box to be generated in the combustion mixing box 500 It may be configured so that the temperature of the regenerated air is adjusted to an appropriate temperature. To this end, the present invention further includes an open/close control means (512). The opening/closing control means 512 includes a temperature measuring unit 512a, a control unit 512c, a storage unit 512b, and an opening/closing drive unit 512d.

The temperature measuring unit 512a measures the temperature of the exhaust gas supplied to the combustion mixing box 500 from the regenerative combustor 300, and transmits the temperature information of the exhaust gas measured by the temperature measuring unit 512a to the controller 512c. . The storage unit 512b stores a suitable range of exhaust gas supplied to the combustion mixing box 500 by the regenerative combustor 300, for example, 790°C to 810°C.

The control unit 512c determines whether the temperature information of the exhaust gas transmitted from the temperature measurement unit 512a falls within the temperature range stored in the storage unit 512b. As a result of the determination, when the temperature information of the exhaust gas transmitted from the temperature measuring unit 512a does not correspond to the temperature range stored in the storage unit 512b, the control unit 512c sends a control signal to operate the opening/closing drive unit 512d to be described later. Generate. Then, the outside air supply unit 510 controls the amount of outside air supplied to the combustion mixing box 500. And, as a result of the determination, if the temperature information of the exhaust gas transmitted from the temperature measuring unit 512a falls within the temperature range stored in the storage unit 512b, the control unit 512c does not perform a separate operation, and the outside air supply unit 510 is A predetermined amount of outside air is supplied to the combustion mixing box 500.

The opening/closing driving unit 512d adjusts the opening angle of the opening/closing unit (not shown) installed in the outdoor air supply unit 510 to adjust the amount of outside air delivered to the combustion mixing box 500 by the outdoor air supply unit 510. For example, the outside air supply unit 510 is composed of a conventional damper connected to the combustion mixing box 500, and the opening/closing unit is installed at the opening of the damper to adjust the opening/closing angle of the opening. The opening/closing driver 512d receives a control signal from the controller 512c and adjusts the opening/closing angle of the opening to adjust the amount of outside air delivered to the combustion mixing box 500 by the outside air supply unit 510.

That is, when the temperature information of the exhaust gas transmitted from the temperature measuring unit 512a is lower than the temperature range stored in the storage unit 512b, the external air supply unit 510 transmits the outside air to the combustion mixing box 500. The opening/closing drive unit 512d is controlled so that the amount of is less than the preset amount of outside air. Then, the opening/closing driving unit 512d controls the opening angle of the opening/closing unit to be reduced so that the amount of outside air delivered by the outside air supply unit 510 to the combustion mixing box 500 is less than the preset amount of outside air. On the contrary, when the temperature information of the exhaust gas transmitted from the temperature measuring unit 512a is higher than the temperature range stored in the storage unit 512b, the external air supply unit 510 transmits the outside air to the combustion mixing box 500. The opening/closing drive unit 512d is controlled so that the amount is greater than the preset amount of outside air. Then, the opening/closing driving unit 512d controls the opening angle of the opening/closing unit to increase so that the amount of outside air delivered by the outside air supply unit 510 to the combustion mixing box 500 is greater than the preset amount of outside air.

As described above, the present invention properly adjusts the amount of outside air supplied by the outside air supply unit 510 according to the temperature change of the exhaust gas discharged from the regenerative burner 300, so that the combustion mixing box 500 dehumidifies the regenerated air at a constant temperature ( 600).

The dehumidifier 600 may be configured as an adsorption-type dehumidifier that removes moisture contained in the air by using the moisture absorption and moisture-proof action of the dehumidifying rotor. Looking at the basic structure of the dehumidifier 600, a cabinet having an intake passage and a discharge passage, a dehumidifying rotor provided in a suction passage in the cabinet and acting as a dehumidification function, and a dehumidifying rotor installed at the point where the suction passage and the discharge passage meet to suck indoor air. And a processing fan that sucks in through the flow path and then discharges the dehumidified air through the discharge flow path, and a drying means for drying the dehumidification rotor while passing through the dehumidification rotor. The present invention is configured to dry the dehumidifying rotor by heating the dehumidifying rotor by receiving the regeneration air delivered from the combustion mixing box 500, so that energy for operating the drying means can be reduced, so that energy can be efficiently used. have. That is, the present invention has an effect of reducing thermal energy and electric energy by using the heat exhausted from the regenerative combustor 300 as regeneration air of the dehumidifier 600.

In addition, by integrating the heat storage type combustor 300 in charge of exhaust and the dehumidifier 600 in charge of supply air, stable supply/exhaust, ventilation, dehumidification and VOC treatment of the drying unit 100 are possible. In addition, the drying unit 100, the concentrator 200, the regenerative burner 300, and the dehumidifier 600 are wirelessly connected to each other through wireless communication, so that they can be managed in an integrated manner.

3 is a diagram illustrating a system for supplying regeneration air using combustion exhaust gas according to a second exemplary embodiment of the present invention, and FIG. 4 is a diagram illustrating a supply of regeneration air using combustion exhaust gas according to a second exemplary embodiment of the present invention. It is a diagram illustrating the heat exchange control box 550 of the system.

3 and 4, the regeneration air supply system using combustion exhaust gas according to the second preferred embodiment of the present invention controls heat exchange instead of the combustion mixing box 500 and the outside air supply unit 510 in the first embodiment. Except for including the box 550, it is configured to be the same as the first embodiment. That is, it includes a drying unit 100, a concentrator 200, a regenerative burner 300, a concentrated mixing box 400, a heat exchange control box 550, and a dehumidifier 600. Since the drying unit 100, the concentrator 200, the regenerative combustion unit 300, the concentration mixing box 400, and the dehumidifier 600 have already been described, the heat exchange control box 550 will be described below.

The heat exchange control box 550 includes a heat exchanger 552, a temperature measuring unit 554, a storage unit 557, a control unit 556, and a purge unit 558.

The heat exchanger 552 receives exhaust gas generated in the combustion process of the regenerative combustor 300, and generates regeneration air by exchanging heat so that the temperature of the exhaust gas decreases. In addition, the regenerated air generated by the heat exchanger 552 is supplied to the dehumidifier 600, and the dehumidifier 600 heats the dehumidifying rotor using the regenerated air delivered from the heat exchanger 552.

The temperature measurement unit 554 measures the temperature of the regenerated air supplied from the heat exchanger 552 to the dehumidifier 600, and transmits the temperature information of the regenerated air measured by the temperature measurement unit 554 to the control unit 556. . The storage unit 557 stores an appropriate temperature range of regeneration air supplied from the heat exchanger 552 to the dehumidifier 600, for example, 140°C to 200°C.

The control unit 556 determines whether the temperature information of the regenerated air received from the temperature measurement unit 554 falls within the temperature range stored in the storage unit 557. As a result of the determination, if the temperature information of the regenerated air received from the temperature measuring unit 554 does not correspond to the temperature range stored in the storage unit 557, the control unit 556 controls a control signal to operate the purge unit 558 to be described later. Create Then, the regenerated air discharged from the heat exchanger 552 is not supplied to the dehumidifier 600 and is discharged to the outside through the purge unit 558. And, as a result of the determination, when the temperature information of the regenerated air received from the temperature measuring unit 554 falls within the temperature range stored in the storage unit 557, the control unit 556 When the temperature information falls within the temperature range stored in the storage unit 557, the control unit 556 does not perform a separate operation, and the regenerated air discharged from the heat exchanger 552 is supplied to the dehumidifier 600.

The purge unit 558 is located between the heat exchanger 552 and the dehumidifier 600, and discharges regenerated air that moves from the heat exchanger 552 to the dehumidifier 600 according to a control signal to the outside. . That is, when the temperature of the regenerated air heat-exchanged in the heat exchanger 552 is too low or too high, it is not transferred to the dehumidifier 600 as it is, and discharged from the purge unit 558 to the outside. Accordingly, the present invention has an effect of selecting only regenerated air that maintains an appropriate temperature among regenerated air heat-exchanged by the heat exchanger 552 and transferring it to the dehumidifier 600.

Hereinafter, a method of supplying regeneration air using combustion exhaust gas according to a preferred embodiment of the present invention will be described in more detail.

5 is a diagram illustrating a method of supplying regeneration air using combustion exhaust gas according to a first embodiment of the present invention.

1, 2 and 5, first, VOCs exhausted from the drying unit 100 are adsorbed in the concentrator 200 (S100). Subsequently, the VOCs adsorbed in the adsorption area of the concentrator 200 are concentrated by the regeneration air (S110). And the VOCs concentrated in the concentrator 200 are transferred to the regenerative burner 300 (S120). The regenerative combustor 300 receiving the concentrated VOCs from the concentrator 200 removes the VOCs by heat storage, heat dissipation and combustion (S130). And after the exhaust gas generated in the combustion process of the regenerative combustor 300 and the cooling air discharged from the concentrator 200 are mixed with regeneration air in the concentrated mixing box 400 (S140), the mixed in the concentrated mixing box 400 Regenerated air is supplied to the concentrator 200 (S150).

In addition, the exhaust gas generated in the combustion process of the regenerative combustor 300 and the external air are mixed with the regeneration air in the combustion mixing box 500 (S160). To describe this process in detail, first, after the temperature measurement unit 512a measures the temperature of the exhaust gas generated in the combustion process of the regenerative combustor 300, the temperature of the exhaust gas measured by the temperature measurement unit 512a Is transmitted to the controller 512c. When the temperature of the exhaust gas does not correspond to a preset temperature range stored in the control unit 512c, the control unit 512c adjusts the amount of outside air supplied from the outside air supply unit 510 to the combustion mixing box 500, and When the temperature of the exhaust gas falls within a preset temperature range stored in the controller 512c, the amount of outside air supplied from the outside air supply unit 510 to the combustion mixing box 500 is maintained as it is. That is, by appropriately controlling the amount of outside air supplied by the outside air supply unit 510 according to the temperature change of the exhaust gas discharged from the regenerative combustor 300, the combustion mixing box 500 provides the regenerated air at a constant temperature to the dehumidifier 600. Is to be delivered.

And the regenerated air generated in the combustion mixing box 500 is supplied to the dehumidifier 600 (S162), and the dehumidifier 600 is configured to dry the dehumidifying rotor by heating the dehumidifying rotor using the regenerated air (S164). ). As described above, in the present invention, since the dehumidification rotor is dried by using the heat exhausted from the heat storage type combustor 300, energy for drying the dehumidification rotor can be saved.

6 is a diagram illustrating a method of supplying regeneration air using combustion exhaust gas according to a second exemplary embodiment of the present invention.

3, 4, and 6, steps S100 to S150 are the same as those of FIG. 5, and thus, a description will be made from step S170 below. That is, after the regenerated air mixed in the concentrated mixing box 400 is supplied to the concentrator 200 (S150), the exhaust gas generated in the combustion process of the regenerative combustor 300 is heat exchanged from the heat exchanger 552 to the regenerated air. It becomes (S170). Thereafter, the temperature measurement unit 554 measures the temperature of the regeneration air supplied to the dehumidifier 600 and transmits it to the control unit 556 (S172), and the control unit 556 regenerates the temperature received from the temperature measurement unit 554. When the temperature of the air falls within the preset temperature range (S174), the regenerated air generated by the heat exchanger 552 is controlled to be supplied to the dehumidifier 600 (S176), and the dehumidifier 600 uses regenerated air. The dehumidification rotor is heated (S178). If, in step S174, when the temperature of the regenerated air does not fall within the preset temperature range, the control unit 556 controls the purge unit 558 to discharge the regenerated air to the outside.

Although the present invention has been described in detail in the above embodiments, it is natural that the present invention is not limited thereto, and it is obvious to those skilled in the art that various modifications and modifications are possible within the scope of the technical idea of the present invention, and such modifications and modifications are attached. If it falls within the scope of the claims, the technical idea should also be regarded as belonging to the present invention.

100: drying unit 110: filter box
112: exhaust fan 120: concentrated supply fan
200: concentrator 300: regenerative burner
310: chimney 320: burner fan
330: purge pan 400: concentrated mixing box
500: combustion mixing box 510: outside air supply
512: open/close control means 512a: temperature measurement unit
512b: storage unit 512c: control unit
512d: opening and closing drive part 550: heat exchange control box
552: heat exchanger 554: temperature measuring unit
556: control unit 557: storage unit
558: purge unit 600: dehumidifier

Claims (13)

In the air conditioning method having a concentrator for concentrating VOCs exhausted from a drying unit, a regenerative combustion combustor for burning the VOCs concentrated in the concentrator, and a dehumidifier for supplying air from which moisture has been removed to a drying unit using a dehumidifying rotor,
A dehumidification supply process of supplying exhaust gas generated in the combustion process of the heat storage type combustor to the dehumidifier as regenerated air; And
A heating process in which the dehumidifier heats the dehumidification rotor using the regenerated air,
The dehumidification supply process is:
A mixing step of mixing the exhaust gas generated in the combustion process of the regenerative combustor and the external air supplied from the external air supply unit with regeneration air in the combustion mixing box; And
Including a supply step of supplying the regenerated air mixed in the combustion mixing box to the dehumidifier,
The dehumidification supply process is:
A heat exchange step in which the exhaust gas generated in the combustion process of the regenerative combustor is heat exchanged from the heat exchanger to regeneration air; And
A supply step of supplying the regenerated air heat-exchanged in the heat exchanger to the dehumidifier,
After the supplying step,
A measuring step of measuring a temperature of the regeneration air supplied to the dehumidifier by a temperature measuring unit;
A delivery step of transferring the temperature of the regenerated air measured by the temperature measuring unit to a control unit; And
The control unit further comprises a purge step of discharging the regenerated air to the outside without supplying the regenerated air to the dehumidifier when the temperature of the regenerated air does not correspond to a preset temperature range. Way.
delete The method of claim 1,
The mixing step,
Measuring, by a temperature measuring unit, a temperature of the exhaust gas generated during the combustion process of the regenerative combustor;
Transmitting the temperature of the exhaust gas measured by the temperature measuring unit to a control unit; And
When the temperature of the exhaust gas does not correspond to a preset temperature range, the control unit further comprises the step of adjusting the amount of outdoor air supplied to the combustion mixing box from the outdoor air supply unit. Supply method.
delete delete The method of claim 1,
Before the dehumidification supply process,
An adsorption process in which VOCs exhausted from the drying unit are adsorbed by adsorption of the concentrator;
A concentration process in which VOCs adsorbed in the adsorption of the concentrator are concentrated by regeneration air;
A delivery process of transferring the VOCs concentrated in the concentrator to the regenerative burner;
A removal process of removing VOCs by heat storage, heat dissipation, and combustion by the heat storage type combustor receiving the concentrated VOCs from the concentrator;
A concentrated mixing process in which the exhaust gas generated in the combustion process of the regenerative type combustor and the cooling air discharged from the concentrator are mixed with regeneration air in the concentrated mixing box; And
Regeneration air supply method using combustion exhaust gas, characterized in that it further comprises a concentrated supply process in which the regenerated air mixed in the concentrated mixing box is supplied to the concentrator.
The method of claim 1,
The method of supplying regeneration air using combustion exhaust gas, wherein the drying unit includes a painting booth or a dry room.
delete delete In an air conditioning system having a concentrator for concentrating VOCs exhausted from a drying unit, a regenerative combustion combustor for burning VOCs concentrated in the concentrator, and a dehumidifier for supplying air from which moisture has been removed to a drying unit using a dehumidifying rotor,
A heat exchanger receiving exhaust gas generated in the combustion process of the regenerative combustor,
The heat exchanger generates regeneration air by exchanging heat so that the temperature of the exhaust gas is lowered,
Regeneration air generated by the heat exchanger is supplied to the dehumidifier,
The dehumidifier heats the dehumidification rotor using regeneration air delivered from the heat exchanger,
A temperature measuring unit that measures the temperature of the regeneration air supplied by the heat exchanger to the dehumidifier;
A purge unit located between the heat exchanger and the dehumidifier and discharging regenerated air supplied by the heat exchanger to the dehumidifier to the outside according to a control signal; And
When the temperature of the regenerated air received from the temperature measuring unit does not fall within a preset temperature range, a control signal is transmitted to the purge unit and the purge unit discharges the regenerated air to the outside. Regeneration air supply system using the combustion exhaust gas.
delete The method of claim 10,
The drying unit, the concentrator, the heat accumulator and the dehumidifier are wirelessly connected to each other through wireless communication.
The method of claim 10,
Regeneration air supply system using combustion exhaust gas, characterized in that the drying unit includes a painting booth or a dry room.

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