JP6783728B2 - Carbon dioxide application device - Google Patents

Description

The present disclosure relates to a carbon dioxide application device.

Carbon dioxide application devices that apply carbon dioxide into agricultural greenhouses in order to improve the yield and quality of horticultural plants are known. On the other hand, the agricultural house is equipped with a warmer to prevent the temperature from dropping at night. The warmer burns heavy oil, kerosene, etc. and supplies warm air to the agricultural house.

Therefore, a carbon dioxide application device has been devised that collects and stores carbon dioxide in the combustion exhaust gas generated from the warmer and supplies carbon dioxide into the agricultural greenhouse at an arbitrary timing (see Patent Document 1).

In this carbon dioxide application device, after the combustion exhaust gas is passed through the liquid in the liquid storage tank to be purified, the carbon dioxide in the combustion exhaust gas is adsorbed by the adsorption tank. The liquid storage tank is provided with a drainage channel that is operated by the pressure in the liquid storage tank in order to keep the liquid level inside constant.

The carbon dioxide adsorbed in the adsorption tank is, for example, desorbed from the adsorption tank in the daytime and applied to the agricultural greenhouse.

Japanese Unexamined Patent Publication No. 2015-142531

The liquid in the liquid storage tank of the carbon dioxide application device contains a compound that reacts with a harmful substance in the combustion exhaust gas. In addition, a purifying agent that supplies a compound to the liquid is installed in the liquid storage tank. In the liquid, the combustion exhaust gas is purified by the chemical reaction between the compound in the liquid and the harmful substance in the combustion exhaust gas.

In the carbon dioxide application device, when the combustion exhaust gas passes through the liquid in the liquid storage tank, the purifying agent is violently shaken by bubbling or the like. As a result, the purifying agent decomposes and is quickly consumed.

One aspect of the present disclosure is to provide a carbon dioxide application device capable of suppressing premature consumption of a purifying agent in a liquid storage tank.

One aspect of the present disclosure is a carbon dioxide application device that supplies carbon dioxide contained in combustion exhaust gas into an agricultural greenhouse. The carbon dioxide application device stores a liquid containing a compound, and at least one liquid storage tank configured to allow combustion exhaust gas to pass through the liquid, and an intake flow path for taking combustion exhaust gas into at least one liquid storage tank. And a supply flow path configured to supply the combustion exhaust gas that has passed through the liquid to the downstream side of the liquid storage tank. At least one liquid storage tank contains a purifying agent that supplies the compound to the liquid. The intake flow path has an intake pipe that discharges combustion exhaust gas into the liquid in at least one liquid storage tank. At least one liquid storage tank has a rectifying section arranged in the liquid. The rectifying unit is arranged in at least one liquid storage tank on the upstream side in the flow direction of the combustion exhaust gas with respect to the intake pipe from the storage position of the purifying agent, and disperses the combustion exhaust gas discharged from the intake pipe. ..

According to such a configuration, the momentum of the combustion exhaust gas pumped into the liquid of the liquid storage tank is reduced, so that the combustion exhaust gas does not violently collide with the purifying agent during bubbling. As a result, decomposition of the purifying agent and rotation in the liquid storage tank are suppressed, and dispersion of the compound contained in the purifying agent in the liquid storage tank is suppressed. As a result, early consumption of the purifying agent in the liquid storage tank can be suppressed.

In one aspect of the present disclosure, the rectifying section may be configured to form a flow of liquid towards the purifying agent by dispersing the combustion exhaust gas. According to such a configuration, it is possible to improve the efficiency of supplying the compound to the liquid while suppressing the decomposition and rotation of the purifying agent. As a result, the purification effect of the combustion exhaust gas can be enhanced.

In one aspect of the present disclosure, the intake pipe may emit combustion exhaust gas from downward to upward in the vertical direction in the liquid. At least one liquid storage tank may have, as a rectifying unit, a plate with which the combustion exhaust gas discharged from the open end of the intake pipe collides. According to such a configuration, the purification effect of the combustion exhaust gas can be easily and surely enhanced while suppressing the decomposition and rotation of the purifying agent.

In one aspect of the present disclosure, the at least one liquid storage tank may further have a case for accommodating the purifying agent. The case may also be placed on top of the plate and may have an opening at least upward. According to such a configuration, decomposition and rotation of the purifying agent can be suppressed more reliably.

In one aspect of the present disclosure, the purifying agent may be retained in a container configured to be removable from at least one liquid storage tank. According to such a configuration, it is possible to improve the efficiency of the purifying agent replacement work while suppressing the decomposition and rotation of the purifying agent.

FIG. 1 is a block diagram schematically showing a configuration of a carbon dioxide application device according to an embodiment. FIG. 2 is a schematic view showing a liquid storage tank and an intake pipe of the carbon dioxide application device of FIG. FIG. 3 is a schematic perspective view showing a plate included in the liquid storage tank of FIG. FIG. 4 is a schematic view showing a liquid storage tank and a intake pipe in an embodiment different from that of FIG. FIG. 5 is a schematic view showing a liquid storage tank and a intake pipe in an embodiment different from FIGS. 2 and 4.

Hereinafter, embodiments to which the present disclosure has been applied will be described with reference to the drawings.
[1. First Embodiment]
[1-1. Constitution]
The carbon dioxide application device 1 shown in FIG. 1 is a device for recovering carbon dioxide contained in combustion exhaust gas and supplying it into an agricultural greenhouse. The carbon dioxide application device 1 is arranged inside or outside the agricultural greenhouse.

The carbon dioxide application device 1 includes a combustion device 2, a first liquid storage tank 3, a second liquid storage tank 4, a blower 5, an adsorption tank 6, and a control unit 7.
Further, the carbon dioxide application device 1 includes an exhaust gas flow path 10, a first intake flow path 11, a cooling air flow path 12, a second intake flow path 13, an application air flow path 14, and a supply flow path. It is provided with 15.

<Combustion device>
The combustion device 2 is a device that warms the air in an agricultural greenhouse by burning fuel such as heavy oil and kerosene mainly at night. The combustion exhaust gas is discharged to the outside of the agricultural greenhouse through the exhaust gas flow path 10 which is a chimney.

<1st liquid storage tank>
The first liquid storage tank 3 is a device for cooling and purifying a part of the combustion exhaust gas generated from the combustion device 2 with the liquid L.

The first liquid storage tank 3 stores the liquid L inside. Further, the first liquid storage tank 3 is configured to take in the combustion exhaust gas generated by the combustion device 2 so that the taken-in combustion exhaust gas passes through the liquid L. The combustion exhaust gas is cooled by heat exchange with the liquid L, and a part of the components contained in the compound contained in the liquid L is removed. The volume of the liquid L stored in the first liquid storage tank 3 is smaller than the volume of the first liquid storage tank 3.

Specifically, the first intake flow path 11 is connected to the first liquid storage tank 3, and the combustion exhaust gas is supplied into the liquid L from the first intake flow path 11. The first intake flow path 11 is connected to the exhaust gas flow path 10 and takes in the combustion exhaust gas. The liquid L has entered the first intake flow path 11 to the same position as the liquid level in the first liquid storage tank 3.

The first intake flow path 11 has an intake pipe 11A. The intake pipe 11A discharges combustion exhaust gas into the liquid L in the first liquid storage tank 3. The liquid L has entered the intake pipe 11A to the same position as the liquid level in the first liquid storage tank 3.

In the present embodiment, the end of the intake pipe 11A is connected to the bottom surface of the first liquid storage tank 3. Specifically, the open end of the intake pipe 11A is connected to the opening provided on the bottom surface of the first liquid storage tank 3. The intake pipe 11A discharges the combustion exhaust gas from the lower side in the vertical direction to the upper side in the liquid L.

The combustion exhaust gas supplied into the liquid L floats in the liquid L as bubbles. That is, bubbling is performed. The combustion exhaust gas that has passed through the liquid L is taken into the second liquid storage tank 4 by the second intake flow path 13.

As the liquid L stored in the first liquid storage tank 3, it is preferable that the liquid L can remove harmful substances such as sulfides and nitrides contained in the combustion exhaust gas. For example, an aqueous solution of a compound that reacts with sulfide or nitride can be suitably used as the liquid L.

As shown in FIG. 2, the first liquid storage tank 3 stores the purifying agent C that supplies the compound to the liquid L. Further, the first liquid storage tank 3 has a plate 31 as a rectifying unit for adjusting the flow of the combustion exhaust gas and the liquid L. Further, the first liquid storage tank 3 has a case 32.

The plate 31 is arranged in the liquid L so as to face the open end of the intake pipe 11A. Specifically, the plate 31 is arranged at a position separated from the bottom surface of the first liquid storage tank 3 in a direction in which the plate surface is horizontal (that is, a direction parallel to the bottom surface of the first liquid storage tank 3). ing. Further, the planar shape of the plate 31 matches the cross-sectional shape of the inside of the first liquid storage tank 3. That is, the plate 31 is arranged so as to partition the first liquid storage tank 3 in the vertical direction.

In the present embodiment, the first liquid storage tank 3 has a cylindrical shape. Therefore, as shown in FIG. 3, the plate 31 is a disk whose diameter is equal to the inner diameter of the first liquid storage tank 3. Further, the plate 31 has a collision surface 31A and a rectifying surface 31B arranged around the collision surface 31A.

The collision surface 31A is a non-perforated surface that faces the open end of the intake pipe 11A and collides with the combustion exhaust gas discharged from the open end of the intake pipe 11A. The rectifying surface 31B is provided with a plurality of through holes 31C. The diameter of each through hole 31C is smaller than the inner diameter of the intake pipe 11A, for example, 1 mm or more and 10 mm or less.

In the present embodiment, the intake pipe 11A is connected to the center of the bottom surface of the first liquid storage tank 3. Therefore, the collision surface 31A is provided in the central portion of the plate 31, and the rectifying surface 31B is provided so as to surround the collision surface 31A.

However, the intake pipe 11A does not necessarily have to be connected to the center of the bottom surface, and can be connected to an arbitrary position. The position of the collision surface 31A is appropriately designed according to the position of the opening end of the intake pipe 11A. Further, the area of the collision surface 31A is preferably equal to or larger than the area of the opening end of the intake pipe 11A.

The case 32 is a container for storing the purifying agent C. The purifying agent C has, for example, a form in which the compound is stored in a container through which a liquid can permeate. In the present embodiment, the case 32 is a tubular body having both ends open and at least one opening 32A formed on a side surface. Further, the case 32 is arranged on the plate 31. Therefore, the case 32 has openings on the upper side and on the side.

The case 32 is arranged so as to overlap the collision surface 31A of the plate 31 in a plan view. That is, the lower end of the case 32 is closed by the plate 31. Further, the purifying agent C is placed on the upper surface of the plate 31.

The combustion exhaust gas discharged from the intake pipe 11A into the liquid L is changed in the direction of flow by colliding with the collision surface 31A of the plate 31, and flows toward the rectifying surface 31B. After that, the combustion exhaust gas passes through the plurality of through holes 31C of the rectifying surface 31B and moves upward in the liquid L while being divided into fine bubbles.

In this way, the combustion exhaust gas discharged from the intake pipe 11A is dispersed by the plate 31 before coming into contact with the purifying agent C. The plate 31 is arranged on the upstream side in the flow direction of the combustion exhaust gas with respect to the intake pipe 11A from the storage position of the purifying agent C. The plate 31 disperses the combustion exhaust gas in the first liquid storage tank 3 before the purifying agent C. The dispersed combustion exhaust gas does not necessarily have to come into contact with the purifying agent C.

As shown by the broken line in FIG. 2, the flow of the combustion exhaust gas causes the liquid L to move upward from the rectifying surface 31B of the plate 31 and to the center of the first liquid storage tank 3 near the liquid surface, and further to the case. A flow is formed toward the plate 31 while passing through the inside of the 32. This flow circulates in the first liquid storage tank 3 while contacting the purifying agent C in the case 32.
In this way, the plate 31 and the case 32 form a flow of the liquid L toward the purifying agent C by dispersing the combustion exhaust gas.

Further, the above-mentioned flow of the liquid L is supplied to the purifying agent C via the rectifying surface 31B after the combustion exhaust gas collides with the collision surface 31A of the plate 31. As a result, the flow of the liquid L presses the purifying agent C downward, so that the purifying agent C is suppressed from flowing out of the case 32. Therefore, the purifying agent C does not have to be fixed to the case 32 or the plate 31. Since the flow of the liquid L described above has a smaller energy than the flow of the combustion exhaust gas, there is little possibility of damaging the bag and decomposing the purifying agent C.

The case 32 is configured to be removable from the first liquid storage tank 3 in a state where the purifying agent C is stored. That is, the purifying agent C is held in a container configured so that it can be taken out from the first liquid storage tank 3. Therefore, when the purifying agent C is replaced, the purifying agent C is replaced by taking out the case 32 from the first liquid storage tank 3 and arranging the case 32 containing the new purifying agent C in the first liquid storage tank 3. Will be done. As shown in FIG. 4, the case 32 may be a tubular body having a mesh-like or porous side surface.

Further, as shown in FIG. 1, the first liquid storage tank 3 is provided with a drainage channel 17. The drainage channel 17 is a flow path for keeping the liquid level of the liquid L constant by discharging the liquid L to the outside of the first liquid storage tank 3 by the liquid pressure when the liquid level of the liquid L rises. is there.

In the present embodiment, the drainage channel 17 is provided with an on-off valve 17A. The on-off valve 17A is opened in accordance with the rise in the liquid level of the liquid L. As the on-off valve 17A, for example, a check valve (that is, a check valve) can be used.

Further, as shown in FIG. 1, a cooling air flow path 12 for cooling the liquid L is connected to the first liquid storage tank 3. The cooling air flow path 12 is a cooling mechanism that cools the liquid L by supplying cooling air into the liquid L. The cooling air flow path 12 has a cooling pipe 12A and an on-off valve 12B.

One end of the cooling pipe 12A is arranged in the liquid L in the first liquid storage tank 3. The other end of the cooling pipe 12A is connected to a source of cooling air (not shown).
The on-off valve 12B is installed in the cooling pipe 12A. The on-off valve 12B is opened when the cooling air is supplied by the cooling pipe 12A. As the on-off valve 12B, for example, a solenoid valve can be used.

The cooling air supplied into the liquid L in the first liquid storage tank 3 is supplied into the liquid L in the second liquid storage tank 4 by the second intake flow path 13. That is, the cooling air supplied from the cooling air flow path 12 cools the liquid L in the first liquid storage tank 3 and the liquid L in the second liquid storage tank 4.

<Second liquid storage tank>
The second liquid storage tank 4 is a device for cooling and purifying the combustion exhaust gas that has passed through the first liquid storage tank 3 again. That is, the carbon dioxide application device 1 cools and purifies the combustion exhaust gas in two stages.

The second liquid storage tank 4 stores the same liquid L as the first liquid storage tank 3 inside. Further, the second liquid storage tank 4 is configured to take in the combustion exhaust gas that has passed through the liquid L of the first liquid storage tank 3 and allow the taken-in combustion exhaust gas to pass through the liquid L.

Specifically, the second intake flow path 13 is connected to the second liquid storage tank 4, and the combustion exhaust gas is taken into the liquid L from the second intake flow path 13. The combustion exhaust gas that has passed through the liquid L is supplied to the adsorption tank 6 by the supply flow path 15. The second liquid storage tank 4 is provided with a plate and a case (not shown) similar to the first liquid storage tank 3, and a drainage channel 17. The liquid L has entered the intake pipe 13A of the second intake flow path 13 to the same position as the liquid level in the second liquid storage tank 4.

The supply flow path 15 is configured to supply the combustion exhaust gas that has passed through the liquid to the inside of the agricultural house or the outside of the agricultural house via the adsorption tank 6 on the downstream side of the liquid storage tank. The supply flow path 15 includes a first supply pipe 15A, a second supply pipe 15B, and a discharge flow path 16. One end of the first supply pipe 15A is arranged in a space above the liquid level in the second liquid storage tank 4. The other end of the first supply pipe 15A is connected to the second supply pipe 15B and the application pipe 14A described later.

<Blower>
The blower 5 is provided in the supply flow path 15 and is configured to guide the combustion exhaust gas that has passed through the liquids of the first liquid storage tank 3 and the second liquid storage tank 4 to the downstream side of the liquid storage tank (that is,). Aspirator). In the present embodiment, the blower 5 supplies the combustion exhaust gas to the adsorption tank 6, the inside of the agricultural greenhouse, and the outside of the agricultural greenhouse. The blower 5 is arranged in the second supply pipe 15B of the supply flow path 15.

In the carbon dioxide adsorption step, the operation of the blower 5 creates a negative pressure in the first liquid storage tank 3 and the second liquid storage tank 4, and the combustion exhaust gas generated in the combustion device 2 becomes the first liquid storage tank 3 and the second liquid storage tank 3. It is pumped to the adsorption tank 6 via the liquid storage tank 4.

<Suction tank>
In the adsorption tank 6, an adsorbent that adsorbs carbon dioxide in the combustion exhaust gas is arranged inside. In the carbon dioxide adsorption step, the carbon dioxide in the combustion exhaust gas supplied by the blower 5 is adsorbed by the adsorbent. As the adsorbent, for example, a porous material such as activated carbon or zeolite can be used.

On the other hand, in the carbon dioxide application step, the application air is supplied into the adsorption tank 6 from the application air flow path 14, and the carbon dioxide is desorbed from the adsorbent. The desorbed carbon dioxide is applied to the agricultural greenhouse via the discharge channel 16.

In this embodiment, the application air flow path 14 is connected to the supply flow path 15. Specifically, the application air flow path 14 and the supply flow path 15 share the second supply pipe 15B. Further, the application air flow path 14 has an application pipe 14A and an on-off valve 14B.

One end of the application pipe 14A is connected to the second supply pipe 15B. The other end of the application pipe 14A is open to the atmosphere. The on-off valve 14B is installed in the application pipe 14A. The on-off valve 14B is opened when the application air is supplied by the application pipe 14A. As the on-off valve 14B, for example, a solenoid valve can be used.

Since the inflow pressure of the application air flowing in from the application pipe 14A is smaller than the pressure for pushing down the liquid level of the second liquid storage tank 4, the application air is guided to the supply flow path 15.

<Control unit>
The control unit 7 is a device that controls the operation of the carbon dioxide application device 1. Specifically, the control unit 7 controls the operation and stop of the blower 5, controls the opening and closing of the solenoid valve, and the like.

[1-2. effect]
According to the embodiment described in detail above, the following effects can be obtained.
(1a) Since the momentum of the combustion exhaust gas pumped into the liquid L of the liquid storage tank by the plate 31 is reduced, it is possible to prevent the combustion exhaust gas from violently colliding with the purifying agent C during bubbling. As a result, the purifying agent C is prevented from being decomposed due to damage to the bag or rotating in the liquid storage tank, and the dispersion of the compound contained in the purifying agent C in the liquid storage tank is suppressed. As a result, early consumption of the purifying agent in the liquid storage tank can be suppressed.

(1b) Since the flow of the liquid L toward the purifying agent C is formed by the plate 31 and the case 32, the efficiency of supplying the compound to the liquid L is increased while suppressing the decomposition and rotation of the purifying agent C. Can be done. As a result, the purification effect of the combustion exhaust gas can be enhanced.

(1c) Since the case 32 for storing the purifying agent C can be taken out from the liquid storage tank, it is possible to improve the efficiency of the purifying agent C replacement work while suppressing the decomposition and rotation of the purifying agent C. ..

(1d) The combustion exhaust gas that collides with the collision surface 31A of the plate 31 passes through the plurality of through holes 31C of the rectifying surface 31B and is divided into small volume bubbles. Therefore, the contact area between the combustion exhaust gas and the liquid L is increased, and the purification effect of the combustion exhaust gas is enhanced.

[2. Second Embodiment]
[2-1. Constitution]
FIG. 5 is a diagram showing a first liquid storage tank 3A and an intake pipe 11B in the carbon dioxide application device of the second embodiment. In the carbon dioxide application device of the second embodiment, the configurations other than the first liquid storage tank 3A and the intake pipe 11B are the same as those of the carbon dioxide application device 1 of FIG. 1, so the description of these configurations will be omitted.

The first liquid storage tank 3A is the same as the first liquid storage tank 3 in the carbon dioxide application device 1 of FIG. 1, except for the arrangement of the intake pipe 11B included in the first intake flow path 11 and the configuration of the rectifying unit. It has a similar configuration.

In the present embodiment, the intake pipe 11B penetrates the side surface of the first liquid storage tank 3A and extends in the first liquid storage tank 3A in a direction intersecting in the vertical direction. The open end of the intake pipe 11B is arranged in the liquid L and faces the side surface of the first liquid storage tank 3A.

Further, in the present embodiment, the purifying agent C is held in the case 34 and is arranged between the bottom surface of the first liquid storage tank 3A and the intake pipe 11B. The purifying agent C may or may not be fixed to the first liquid storage tank 3A or the intake pipe 11B.

The first liquid storage tank 3A has a plate 33 as a rectifying unit that closes the open end of the intake pipe 11B. The inner surface of the intake pipe 11B in the plate 33 constitutes a collision surface on which the combustion exhaust gas discharged from the intake pipe 11B collides.

Further, a plurality of through holes 11C are provided in the portion of the side wall of the intake pipe 11B that is arranged in the liquid L. The diameter of each through hole 11C is smaller than the inner diameter of the intake pipe 11B.
The combustion exhaust gas flowing through the intake pipe 11B collides with the plate 33 at the opening end of the intake pipe 11B to be released. The combustion exhaust gas that collides with the plate 33 is supplied into the liquid L while being divided by the plurality of through holes 11C.

In this way, the plate 33 disperses the combustion exhaust gas discharged from the intake pipe 11B in front of the purifying agent C (that is, on the upstream side in the flow direction of the combustion exhaust gas).
Further, a part of the plurality of through holes 11C is formed at a position facing the purifying agent C. Therefore, the combustion exhaust gas discharged from the plurality of through holes 11C causes a flow of the liquid L toward the purifying agent C arranged under the intake pipe 11B.

[2-2. effect]
According to the embodiment described in detail above, the following effects can be obtained.
(2a) The combustion exhaust gas discharged from the intake pipe 11B is dispersed by the plate 33 that closes the open end of the intake pipe 11B. Therefore, the dispersion of the compound contained in the purifying agent C in the liquid storage tank is suppressed.

(2b) Combustion exhaust gas is divided into small volume bubbles by passing through a plurality of through holes 11C of the intake pipe 11B. Therefore, the contact area between the combustion exhaust gas and the liquid L is increased, and the purification effect of the combustion exhaust gas is enhanced.

[3. Other embodiments]
Although the embodiments of the present disclosure have been described above, it goes without saying that the present disclosure is not limited to the above-described embodiments and can take various forms.

(3a) In the carbon dioxide application device 1 of the above embodiment, the number of liquid storage tanks for storing the liquid L may be one. Further, the carbon dioxide application device 1 may include three or more liquid storage tanks.

(3b) In the carbon dioxide application device 1 of the above embodiment, the rectifying unit does not necessarily have to form a flow of the liquid L toward the purifying agent C by dispersing the combustion exhaust gas. For example, the plate 31 may have at least a collision surface 31A and does not necessarily have a rectifying surface 31B. Further, the upper surface of the case 32 does not necessarily have to be open.

(3c) In the carbon dioxide application device 1 of the above embodiment, if the rectifying unit can disperse the combustion exhaust gas discharged from the intake pipe in front of the purifying agent C in the liquid storage tank, it is described above. It is not limited to the configuration. For example, fine through holes may be formed on the collision surfaces of the plates 31 and 33. Further, the combustion exhaust gas may be dispersed by a member other than the plates 31 and 33.

(3d) In the carbon dioxide application device 1 of the above embodiment, the case 32 does not necessarily have to be configured to be removable from the liquid storage tank. Further, the purifying agent C may be stored in a container having a shape different from that of the case 32 and which can be taken out from the liquid storage tank.

(3e) In the carbon dioxide application device 1 of the above embodiment, the combustion exhaust gas that has passed through the liquid storage tank may be directly supplied into the agricultural greenhouse by the blower 5.

(3f) The functions of one component in the above embodiment may be dispersed as a plurality of components, or the functions of the plurality of components may be integrated into one component. Further, a part of the configuration of the above embodiment may be omitted. Further, at least a part of the configuration of the above embodiment may be added or replaced with the configuration of the other embodiment. It should be noted that all aspects included in the technical idea specified from the wording described in the claims are embodiments of the present disclosure.

1 ... carbon dioxide application device, 2 ... combustion device, 3, 3A ... first liquid storage tank,
4 ... 2nd liquid storage tank, 5 ... blower, 6 ... adsorption tank, 7 ... control unit,
10 ... Exhaust gas flow path, 11 ... First intake flow path, 11A, 11B ... Intake piping,
11C ... through hole, 12 ... cooling air flow path, 12A ... cooling pipe, 12B ... on-off valve,
13 ... 2nd intake flow path, 13A ... intake piping, 14 ... application air flow path, 14A ... application piping,
14B ... on-off valve, 15 ... supply flow path, 15A ... first supply pipe, 15B ... second supply pipe,
16 ... drainage channel, 17 ... drainage channel, 17A ... on-off valve, 31 ... plate, 31A ... collision surface,
31B ... rectifying surface, 31C ... through hole, 32 ... case, 32A ... opening, 33 ... plate,
34 ... Case.

Claims (4)

A carbon dioxide application device that supplies carbon dioxide contained in combustion exhaust gas into an agricultural greenhouse.
At least one liquid storage tank configured to store a liquid containing a compound and allow combustion exhaust gas to pass through the liquid.
An intake flow path for taking the combustion exhaust gas into the at least one liquid storage tank, and
A supply flow path configured to supply the combustion exhaust gas that has passed through the liquid to the downstream side of the liquid storage tank, and
With
The liquid storage tank stores a purifying agent that supplies the compound to the liquid.
The intake flow path has an intake pipe that discharges the combustion exhaust gas into the liquid in the at least one liquid storage tank.
The at least one liquid storage tank has a rectifying unit arranged in the liquid.
The rectifying unit is arranged in at least one liquid storage tank on the upstream side of the intake pipe in the flow direction of the combustion exhaust gas from the storage position of the purifying agent, and is discharged from the intake pipe. The combustion exhaust gas is dispersed, and the dispersion of the combustion exhaust gas is configured to form a flow of the liquid toward the purifying agent.
The intake pipe discharges the combustion exhaust gas from the lower side in the vertical direction to the upper side in the liquid.
The at least one liquid storage tank
A plate with which the combustion exhaust gas discharged from the opening end of the intake pipe as the rectifying unit collides with the plate.
A case for storing the purifying agent and
Have,
The case is placed on top of the plate and has upper and lateral openings.
A carbon dioxide application device in which the lower end of the case is closed by the plate . The carbon dioxide application device according to claim 1 .
A carbon dioxide application device in which the purifying agent is held in a container configured to be removable from the at least one liquid storage tank. The carbon dioxide application device according to claim 1 or 2.
The plate
A non-perforated collision surface facing the open end of the intake pipe,
A rectifying surface arranged around the collision surface and provided with a plurality of through holes,
Have,
The case is a carbon dioxide application device arranged so as to overlap the collision surface in a plan view. The carbon dioxide application device according to any one of claims 1 to 3.
The plate is a carbon dioxide application device arranged so as to partition the at least one liquid storage tank in the vertical direction.

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