KR20230083381A - Carbon dioxide supply system of greenhouse - Google Patents

Abstract

The present invention relates to a carbon dioxide supply system for a greenhouse.
Specifically, the carbon dioxide necessary for the greenhouse is supplied based on the exhaust gas generated from the engine generator. In other words, the greenhouse for growing plants at low temperatures is a facility that blocks the circulation of air with the outside to maintain the temperature. Due to carbon assimilation, the inside of the greenhouse tends to become short of carbon. To this end, the present invention is directed to a greenhouse carbon dioxide supply system that removes harmful substances from the exhaust gas of an engine-driven generator and directly supplies the remaining carbon dioxide to the greenhouse. it's about

Description

Greenhouse carbon dioxide supply system {CARBON DIOXIDE SUPPLY SYSTEM OF GREENHOUSE}

The present invention relates to a carbon dioxide supply system for a greenhouse.

Specifically, the carbon dioxide necessary for the greenhouse is supplied based on the exhaust gas generated from the engine generator. In other words, the greenhouse for growing plants at low temperatures is a facility that blocks the circulation of air with the outside to maintain the temperature. Due to carbon assimilation, the inside of the greenhouse tends to become short of carbon. To this end, the present invention is directed to a greenhouse carbon dioxide supply system that removes harmful substances from the exhaust gas of an engine-driven generator and directly supplies the remaining carbon dioxide to the greenhouse. it's about

Carbon dioxide consumed by the carbon action of plants is absolutely insufficient when the space is sealed to maintain the temperature of the greenhouse.

This inevitably adversely affects the growth of plants, and some farms purchase and supply compressed carbon dioxide for crop growth and fruit production, but it is not easy because the cost is enormous.

Accordingly, the present applicant intends to propose a technology for supplying carbon dioxide to a greenhouse based on exhaust gas generated from an engine-driven generator.

As a related technology, Korean Patent Registration No. 10-2196641 discloses a carbon dioxide supply device.

A carbon dioxide supplying device according to the above technique includes an accumulation unit, an accumulation passage, a supply passage, and a control unit. The accumulation unit accumulates carbon dioxide contained in exhaust gas generated by heating of a greenhouse in which plants are grown. Also, the storage passage guides the exhaust gas to the storage unit. Further, the supply passage guides the air to the greenhouse through the storage unit. Then, the control unit performs accumulation control and supply control. In the accumulation control, carbon dioxide contained in the exhaust gas generated by warming is accumulated in the accumulator during the warming period. Further, in the supply control, air is guided through the supply flow passage during a non-heating period, and carbon dioxide accumulated in the storage unit is supplied to the greenhouse. In addition, it is described that in the warming period, when the start condition is satisfied during storage control, replenishment processing for alternately performing supply control and storage control is performed.

In addition, Japanese Patent Publication No. 6179915 discloses a carbon dioxide supply device to a horticultural facility using carbon dioxide in combustion exhaust gas.

The technology recovers carbon dioxide from combustion exhaust gas by using a physical adsorption method that does not require a heat source, vacuum pump, or compressor to recover and store carbon dioxide from combustion gas and release the stored carbon dioxide when the carbon dioxide concentration in the greenhouse decreases. To provide a device for supplying carbon dioxide to a horticultural facility capable of supplying carbon dioxide.

Registered Patent Publication No. 10-2196641 (2020.12.30. Notice) Japanese Patent Publication No. 6179915 (issued on August 16, 2017) Publication No. 10-2016-0058916 (May 25, 2016) Japanese Patent Publication No. 4822749 (issued on November 24, 2011)

An object of the present invention is to supply carbon dioxide necessary for a greenhouse based on exhaust gas generated from an engine generator. In other words, a greenhouse for growing plants at low temperatures is a facility that blocks air circulation with the outside to maintain temperature. , Due to the carbon assimilation of plants, the interior of the greenhouse tends to become short of carbon. To this end, the present invention removes harmful substances from the exhaust gas of an engine-driven generator and directly supplies the remaining carbon dioxide to the greenhouse, thereby supplying carbon dioxide to the greenhouse. to provide the system.

The carbon dioxide supply system of the greenhouse according to the present invention, which was devised to achieve the above object, includes an engine generator 10; a reduction device 20 that receives exhaust gas generated from the engine generator 10 and reduces nitrogen oxides (NOx) based on a selective catalytic oxidation method (SCR); a wet cleaner 30 receiving the exhaust gas in which nitrogen oxides are reduced from the reduction device 20 and performing cleaning by removing contaminants in a wet method; It is characterized in that it includes; a greenhouse 40 that is supplied with carbon dioxide purified by washing in the wet scrubber 30.

At this time, the wet cleaner 30,

an accommodating tank 31 configured at the bottom side to accommodate the washing water containing contaminants according to the spraying of the washing liquid; a washing tank 32 formed of one or more layers above the storage tank 31; a blower 33 configured on one side of the wet cleaner 30 to supply air into the wet cleaner 30 and to shape the direction of the supplied air; a cleaning solution supply unit 34 for supplying a cleaning solution to the wet cleaner 30; It is characterized in that it includes; a carbon dioxide discharge unit 35 for discharging carbon dioxide purified by washing in the wet cleaner 30.

In addition, the cleaning liquid supply unit 34,

a supply pipe 34a for supplying a cleaning liquid; A spray pipe 34b connected to one side of the supply pipe 34a, extending into the cleaning tank 32 of the wet cleaner 30, and having a plurality of nozzles.

In addition, when the washing tank 32 of the wet cleaner 30 has one or more layers, it is characterized in that the spray pipe 34b is extended for each layer.

According to the system for supplying carbon dioxide in a greenhouse according to the present invention, it is possible to supply insufficient carbon inside the greenhouse by the carbon assimilation of plants in the greenhouse, and it is possible to prevent excessive costs for purchasing and supplying carbon.

Also, it can help the plants in the greenhouse grow.

1 is a block diagram of a greenhouse carbon dioxide supply system according to the present invention.
Figure 1a specifically shows an example of a carbon dioxide supply system for a greenhouse according to the present invention.
2 shows a wet scrubber of a carbon dioxide supply system for a greenhouse according to the present invention.

The terms or words used in this specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventors can properly define the concept of terms in order to best explain their invention. Based on the principle, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of the present application It should be understood that there may be variations and examples.

Hereinafter, prior to description with reference to the drawings, matters that are not necessary to reveal the subject matter of the present invention, that is, known configurations that can be added obviously by those skilled in the art, are not shown or specifically described. reveal the sound

The present invention relates to a carbon dioxide supply system for a greenhouse.

Specifically, the carbon dioxide necessary for the greenhouse is supplied based on the exhaust gas generated from the engine generator. In other words, the greenhouse for growing plants at low temperatures is a facility that blocks the circulation of air with the outside to maintain the temperature. Due to carbon assimilation, the inside of the greenhouse tends to become short of carbon. To this end, the present invention is directed to a greenhouse carbon dioxide supply system that removes harmful substances from the exhaust gas of an engine-driven generator and directly supplies the remaining carbon dioxide to the greenhouse. it's about

The greenhouse carbon dioxide supply system according to the present invention will be described through the accompanying drawings.

1 is a block diagram of a carbon dioxide supply system for a greenhouse according to the present invention, and FIG. 1A specifically shows an example of a carbon dioxide supply system for a greenhouse according to the present invention.

A greenhouse carbon dioxide supply system according to the present invention includes an engine generator 10 used to drive an engine; a reduction device 20 that receives exhaust gas generated from the engine generator 10 and reduces nitrogen oxides (NOx) based on a selective catalytic oxidation method (SCR); a wet cleaner 30 receiving the exhaust gas in which nitrogen oxides are reduced from the reduction device 20 and performing cleaning by removing contaminants in a wet method; and a greenhouse 40 receiving purified carbon dioxide cleaned by the wet scrubber 30 .

At this time, an example according to the configuration of the engine generator 10, the reduction device 20, the wet cleaner 30 and the greenhouse 40 described above may refer to FIG. 1A of the accompanying drawings, and the engine generator 10 As a generator for engine driving, any configuration capable of discharging exhaust gas is sufficient, and the configuration of the engine generator 10 according to FIG. 1A may not necessarily be adopted.

Also, the engine generator 10 may be a combustion engine generator for heating a greenhouse. Alternatively, all other generators capable of discharging exhaust gas may be included.

In addition, any reduction device 20 can be applied as long as it is an SCR type nitrogen oxide reduction device, and an example of such a reduction device can be a device searched for on an Internet line.

In addition, the greenhouse 40 may employ all conventional greenhouses 40 as long as carbon dioxide can be supplied from the wet cleaner 30 .

The wet scrubber 30 receives the exhaust gas in which nitrogen oxides are reduced from the reduction device 20, and sprays washing water to increase the load of the pollutants on the exhaust gas and drop them to remove pollutants from the exhaust gas. Perform a cleaning operation to separate.

A wet cleaner 30 for this purpose is shown in FIG. 2 of the accompanying drawings.

2 shows a wet scrubber of a carbon dioxide supply system for a greenhouse according to the present invention.

The wet cleaner 30 according to the present invention according to FIG. 2 of the accompanying drawings includes a receiving tank 31 configured at the bottom side to accommodate washing water containing contaminants according to the spraying of the washing liquid; a washing tank 32 formed of one or more layers above the storage tank 31; a blower 33 configured on one side of the wet cleaner 30 to supply air into the wet cleaner 30 and to shape the direction of the supplied air; a cleaning solution supply unit 34 for supplying a cleaning solution to the wet cleaner 30; and a carbon dioxide discharge unit 35 for discharging carbon dioxide that has been cleaned and purified in the wet scrubber 30 .

At this time, it should be understood that the receiving tank 31 and the washing tank 32 may have a communication integral structure and are divided into zones.

In addition, the blower 33 allows the air to be supplied in a downward direction to an upward direction.

On the other hand, it is natural that each of the engine generator 10, the reduction device 20, the wet cleaner 30, and the greenhouse 40 described above is connected by a pipe for gas movement.

In addition, the cleaning liquid supply unit 34 includes a supply pipe 34a for supplying the cleaning liquid; and a spray pipe 34b connected to one side of the supply pipe 34a, extending into the cleaning tank 32 of the wet cleaner 30, and having a plurality of nozzles.

At this time, when the washing tank 32 of the wet cleaner 30 has one or more layers, the spray pipe 34b is extended for each layer.

In addition, the supply pipe 34a includes a valve for receiving a cleaning liquid from a cleaning liquid tank (not shown); A pump assisting in the supply of the cleaning solution may be further included.

On the other hand, the other side of the supply pipe 34a is connected to one side of the storage tank 31a by a pipe, and a check valve and a filter are included on one side of the connected pipe, thereby containing contaminants received in the storage tank 31a. The cleaning solution can also be reused.

In addition, the container 31a may include a discharge port 31a on the other side to help discharge when the amount of cleaning solution inside the container 31a is too large.

In addition, one side of the washing tank 32 includes an inlet 32a so that exhaust gas having reduced nitrogen oxides can be supplied to the wet cleaner 30 . The exhaust gas supplied in this way may be transported from the lower side to the upper side by the induction of the blower 33 .

In addition, a filter 1 may be configured on the upper side of the spray pipe 34b. Such a filter 1 may be fixed inside the wet cleaner 30 by including a separate frame.

Such a filter 1 may allow remaining contaminants to be removed once again while the gas from which contaminants are removed by spraying the cleaning liquid passes through the filter 1 .

Meanwhile, the wet cleaner 30 may further include components as shown in [Table 1].

The wet cleaner 30 according to [Table 1] includes a concave groove 2 having a predetermined length on the side wall of the space between the filters 1 located below one of the spray pipes 34b.

In addition, a second filter (3) having a mesh size smaller than that of the filter (1) is included at a position corresponding to the concave groove (2).

The concave groove 2 is formed along the inner wall of the washing tank 32, and the second filter 3 is configured to have a size corresponding to the size of the concave groove 2.

At this time, the cylinder 4 is connected from the upper surface of the second filter 3 to the upper end of the concave groove. The second filter 3 can be moved up/down on the concave groove 2 by this cylinder 4 .

In addition, at the lower end of the concave groove 2, a support body 6 including a groove portion concave from the upper side to the lower side is configured, and the lower surface of the second filter 3 has a pressing body 7 bent in an 'L' shape. ; is composed of

At this time, the area protruding downward of the pressing body 7 is inserted into the groove part of the support body 6, and the spring (see Xbox in [Table 1]) is included in the groove part.

In addition, when the washing tank 32 of the wet cleaner 30 has the above-described structure, a discharge hole 5 is included on the sidewall of the washing tank 32 corresponding to the upper side of the filter 1, and the The discharge hole 5 includes a check valve 5a.

At this time, the lowermost surface of the discharge hole 5 is positioned lower than the uppermost surface of the filter 1.

As configured as described above, when contaminants accumulate in the filter 1 of the wet cleaner 30, when the wet cleaner 30 is not in use, the cleaning liquid is sprayed using the spray pipe 34b, but the cylinder 4 ) to lower the second filter (3), and the foreign substances on the upper surface of the filter (1) are discharged like cleaning liquid by the pressure generated by the pressing body (7) according to the lowering of the second filter (3). It is discharged through the hole (5). At this time, the check valve 5a is operated together with discharge using the discharge hole 5 so that the discharge hole 5 is normally closed and then opened.

At this time, as the pressing body 7 has a predetermined length and extends horizontally with the second filter 3, the mesh network of the second filter 3 has through holes to prevent low pressure from being generated. , At the same time, when the second filter 3 is configured to be completely blocked, it is possible to prevent gas movement and excessive pressure generation.

What has been described using the drawings above is only the main points of the present invention, and it is obvious that the present invention is not limited to the configuration of the drawings as various designs are possible within the technical scope.

10: engine generator
20: reduction device
30: wet cleaner
31: water tank
31a: outlet
32: washing tank
32a: inlet
33: blower
34: cleaning solution supply unit
34a: supply pipe
34b: spray pipe
35: carbon dioxide outlet
1 : filter
40: Greenhouse

Claims (4)

An engine generator 10;
a reduction device 20 that receives exhaust gas generated from the engine generator 10 and reduces nitrogen oxides (NOx) based on a selective catalytic oxidation method (SCR);
a wet cleaner 30 receiving the exhaust gas in which nitrogen oxides are reduced from the reduction device 20 and performing cleaning by removing contaminants in a wet method;
A carbon dioxide supply system for a greenhouse, comprising: a greenhouse (40) supplied with carbon dioxide cleaned and purified by the wet scrubber (30).
The method of claim 1,
The wet cleaner 30,
an accommodating tank 31 configured at the bottom side to accommodate the washing water containing contaminants according to the washing liquid spray;
a washing tank 32 formed of one or more layers above the storage tank 31;
a blower 33 configured on one side of the wet cleaner 30 to supply air into the wet cleaner 30 and to shape the direction of the supplied air;
a cleaning liquid supply unit 34 for supplying cleaning liquid to the wet cleaner 30;
A carbon dioxide supply system for a greenhouse characterized in that it includes a; carbon dioxide discharge unit 35 for discharging carbon dioxide purified by washing in the wet scrubber 30.
The method of claim 2,
The washing liquid supply unit 34,
a supply pipe 34a for supplying a cleaning liquid;
A carbon dioxide supply system for a greenhouse characterized in that it includes a spray pipe (34b) connected to one side of the supply pipe (34a) and extending into the cleaning tank (32) of the wet cleaner (30) and having a plurality of nozzles.
The method of claim 2,
When the washing tank 32 of the wet cleaner 30 has one or more layers, the spray pipe 34b is extended for each layer.

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