DE102020102525A1 - Closed climate cell for growing plants in several layers with space and energy-saving climate system - Google Patents

Abstract

Around a closed climatic cell 100 for growing plants in several layers 12 arranged one above the other, wherein the climatic cell 100 comprises at least one chamber 10 in which the layers 12 are arranged one above the other and extend from a first side 11a of the chamber 10 to a second side 11b of the chamber 10 each layer 12 has at least one plant growing container and at least one lighting platform arranged above it, with a climate system 20 of the climate cell 100 being used to set a climate in the at least one chamber 10 to create both a space-saving and an energy-saving system for climate setting possesses, it is proposed that a heat-storing element 13 is arranged on the first side 11a and second side 11b of the at least one chamber 10, an air flow 25 generated by a ventilation system 21 of the air-conditioning system 20 flowing through both of the heat-storing elements 13, one of the both be th 11a, 11b at least at one point in time an air inlet side 23 and the remaining side an air outlet 24 for the air flow 25, the heat-storing element 13 arranged at the air inlet 23 acting as a heat-emitting element 13a and the heat-storing element 13 arranged at the air outlet 24 as a heat-absorbing element 13a acts.

Description

The invention relates to a closed climatic cell for growing plants in several layers arranged one above the other, the climatic cell comprising at least one chamber in which the layers are arranged one above the other and extend from a first side of the chamber to a second side of the chamber, each layer having at least one Has plant growing container and at least one lighting platform arranged above it. A climate is set in the at least one chamber by means of a climate system of the climate cell.

It is already known that plants can be grown in greenhouses with a regulated climate. It is common to use artificial light in the evening hours and winter months to encourage the plant to grow. In addition, it is known to have a fan or an air exchange system installed in the greenhouses, which ensures an air exchange or a supply of fresh air and via which the air composition such as oxygen content, CO2 content or humidity can be regulated.

State of the art

In the DE 1 778 624 A describes a device for conditioning air for a climatic chamber. A circulating fan is used to distribute and circulate air in an essentially closed circuit in a climatic chamber, with a conditioning unit being able to humidify, dehumidify, cool and heat the air. Here, however, the air is set centrally by the conditioning unit and then circulated in the entire climatic chamber before it comes back to the conditioning unit.

In the DE 10 2016 121 126 B3 describes a climatically closed climatic cell for growing plants indoors, with several containers being arranged one above the other in at least two layers within the climatic cell. Each container has a receiving area with a flatly arranged substrate for receiving the plants and / or for receiving seeds, the container having a frame surrounding the receiving area circumferentially.

Presentation of the invention: task, solution, advantages

The object of the present invention is to improve a closed air-conditioning cell for growing plants in several superimposed layers with regard to air-conditioning inside the air-conditioning cell in such a way that the air-conditioning is designed to be very space-saving. A simple structure of the climate system of the climate cell not only has the advantage that assembly is less complex, it is also energy-saving to use fewer fans and simpler cooling with heat recovery. In addition, the new construction concept offers a very homogeneous temperature distribution and a uniform temperature for all plants, at which this only fluctuates by a few degrees, even if the climate cell reaches a large size. The construction concept is also very flexible, as air can be blown in on both sides and can therefore be adapted for different climate chamber sizes and climate cells.

According to the invention, a closed climate cell for growing plants in several layers is provided for this purpose, the climate cell comprising at least one chamber in which the layers are arranged one above the other and extend from a first side of the chamber to a second side of the chamber, with each layer having at least one plant growing container and has at least one lighting platform arranged above it. A climate is set in at least one chamber by means of a climate system of the climate cell.

For this purpose, a heat-storing element is arranged on each of the first and second sides of the at least one chamber, an air flow generated by a ventilation system of the air-conditioning system flowing through both heat-storing elements, with one of the two sides having an air inlet side at least at one point in time and the remaining side an air outlet side forms for the air flow, wherein the heat-storing element arranged on the air inlet side acts as a heat-emitting element at this point in time and the heat-accumulating element arranged on the air outlet side acts as a heat-absorbing element at this point in time.

According to the invention, a closed climatic cell is understood to mean a climatic cell closed on six sides for growing plants in the interior. By means of the climate system, the climate inside the closed climate cell is adapted or regulated accordingly to the needs of the plants, also depending on the respective growth phase. For this purpose, in particular the temperature, the humidity, the carbon dioxide content, the oxygen content and the air flow velocity are set. A particular advantage of the closed climate cell is that less water is used compared to conventional cultivation methods, since not much moisture escapes in the closed system and therefore less water has to be added for the plants.

The plant growing containers can be trough-shaped and have one or more receiving areas for plants or the seeds. Several plant growing containers can be arranged next to one another in a trough-shaped carrier. A substrate on which the seed or the plant sits is arranged in the receiving area of each plant growing container. The corresponding nutrient solution is preferably passed along below the substrate.

The lighting platform preferably has essentially the same external dimensions as the plant growing container or the carrier with several plant growing containers arranged next to one another. Each lighting platform can have several lighting means, in particular LEDs and also optionally sensors and / or cameras. The lighting means can preferably also consist of hybrid light, that is to say be mixed from daylight and artificially generated light. For example, daylight can be directed into the enclosed climatic chamber via mirrors and glass fibers and distributed there. Sensors can measure the strength and composition of daylight and control the lighting means so that missing components are added to the spectrum of daylight, for example via LEDs. By means of the lighting means, the lighting can be adjusted to the conditions of the plant as a function of the current growth phase. For this purpose, the lighting platforms or the lighting means of the lighting platforms can preferably be controlled automatically. Using the optional sensors and / or cameras, the actual state of the climate inside the closed climate cell as well as the current growth phase of the plants can be determined. The lighting platforms and / or the air conditioning system or the ventilation system or air conditioning elements attached between the chambers can then be controlled on the basis of this data.

A chamber of the climate cell consists of several layers arranged one above the other, which are attached to the opposite sides of the chamber. Each side has its own air inlet or air outlet and can preferably be flowed through over the full width of air. This means that air or the air flow generated enters the chamber through a first side of the chamber, flows through the chamber and exits the chamber again on a second side.

If several chambers are arranged next to one another, the first side of the second chamber is arranged adjacent to the second side of the first chamber, so that the air leaving the first chamber, after flowing through a space between the two chambers, enters the second chamber through its first side can. The intermediate space is preferably significantly narrower than a chamber. This makes it possible to place many chambers next to each other in a climate cell. It is also possible to place the chambers one behind the other so that several rows with chambers placed next to one another are arranged one behind the other. These chambers placed one behind the other, however, preferably do not have a common air circulation, but are preferably adjusted and / or regulated in a climatically independent manner by means of the air conditioning system or a further air conditioning system. For example, each row of chambers could be assigned a ventilation system by means of which an air flow is generated which flows through all chambers of a row arranged next to one another.

A heat-storing element is attached in or on the first or second side of the chamber, wherein the heat-storing element can be a heat-emitting element or a heat-absorbing element or functions as a heat-emitting or heat-absorbing element, depending on the direction of the air flow of the ventilation system. For the purposes of this invention, the heat-storing element always functions as a heat-emitting element at a point in time, which element is arranged on the air inlet side of a chamber at this point in time. The heat-storing element, which is arranged on the air outlet side of the same chamber at this point in time, functions as a heat-absorbing element at this point in time. Thus, the heat-storing elements can change their function between heat-absorbing and heat-releasing. This can be done, for example, by reversing the air flow.

According to this invention, a heat-storing element has a heat-emitting function when it gives off stored heat to the air flow which flows through this heat-storing element. Conversely, a heat-storing element has a heat-absorbing function when it absorbs heat from the air flow which flows through this heat-storing element and thus cools the air flow.

In the case of chambers arranged next to one another, the heat-absorbing element of the chamber lying first in the air flow is arranged next to the heat-emitting element of the chamber lying second in the air flow, with both elements or the chambers being separated by a gap. Further elements of the air conditioning system can be placed in this space will or be placed, for example a climate control element. Such a climate regulating element can, for example, preferably be used for air cooling and / or for humidity regulation.

The ventilation system comprises an air-moving element and / or an element which generates the air flow. For example, a fan can be provided for this purpose, which can be attached to one or both sides of the air-conditioning cell in an edge space. Edge spaces, which are preferably both equipped with a ventilation system, can also be attached to both ends of a row of chambers arranged next to one another. The edge spaces thus to a certain extent form the beginning and the end of a row of chambers arranged next to one another and, instead of an intermediate space, are arranged following the first side of the first chamber and the second side of the last chamber. The direction of the air flow in the climate cell or the chambers is determined by the ventilation system.

The at least one chamber of the closed climate cell preferably consists of at least one upper and at least one lower level. The levels are preferably structurally separated so that no significant exchange of air between the levels is possible. Ideally, the structural separation is such that the individual chambers, including the spaces in between, are separated so that an air flow that runs in the upper level and an air flow that runs in the lower level can flow independently of one another. The air flow of the upper level and the air flow of the lower level are particularly preferably oriented in opposite directions. If there are more than two levels in the chamber, it is possible that the direction of the air flow is always alternating between two levels in opposite directions, so that either two levels are flowed through in a kind of ring-shaped circulation or all levels are serpentine in alternating directions be flowed through by the air. If there are several levels, it is also possible for the air flow to flow through some levels in the same direction, so that the direction of the air flow does not change between all levels. Particularly preferably, each level consists of a similar number of layers, so that the distances between the levels are approximately equidistant.

The direction of the air flow which flows through the at least one chamber is preferably changeable and / or changeable. This means that the air flow on one plane can flow alternately in a first direction and in an opposite second direction. A change in direction of the flow can mean any change in direction, but in particular a flow in the opposite direction of the previous flow direction on the same plane. Preferably, the air stream flows in one direction for 40 seconds to 3 minutes before changing direction. The air stream particularly preferably flows in one direction for 60 seconds to 2 minutes, very particularly preferably 90 seconds to 100 seconds, before a change of direction takes place. If there is a change in direction, the air flow preferably flows as long as it has flowed in one direction, also in the other direction, so that the changes in direction take place in regular periods. The air flow is preferably paused for a short time when there is a change in direction, that is to say the air flow comes to a standstill for a short time, in particular for less than 20 seconds, preferably for less than 10 seconds. The air flow can come to a standstill because ventilation systems are not switched on on both sides. The air flow can, however, also be slowed down or brought to a standstill by switching off a ventilation system in an edge area on one side of the air conditioning cell and switching it on in the edge area on the opposite side of the air conditioning cell so that the fastest possible change of direction can be achieved.

Furthermore, it is preferably provided that the closed air-conditioning cell has a ventilation system by means of which the direction of the air flow can be changed and / or changed. The ventilation system preferably comprises a fan, alternatively or additionally the ventilation system can comprise a blower or a compressor. It is important that the ventilation system is able to control the direction of an air flow.

Furthermore, it is preferably provided that the heat-storing elements are rigidly arranged on the first or the second side of the chamber. A rigid arrangement here means that the elements are firmly, that is, immovably, connected to the first or second side of the chamber. The heat-storing elements can be installed and removed, but not movable with respect to the respective side of the chamber. The heat-storing elements provide the air inlet and air outlet of the chamber, that is, they close them structurally, but are themselves air-permeable, for example through holes or passages. For example, the heat-storing elements can be mounted on the fastening frame of the layers. Particularly preferably, after a change in direction of the air flow, the function of the two heat-storing elements is swapped, specifically in such a way that the element previously functioning as a heat-emitting element functions as a heat-absorbing element, and that previously as heat-absorbing element acts as a heat-emitting element. This has the advantage that the heat-absorbing and heat-emitting element exchange alternately, the first heat-absorbing element withdraws heat from the air flowing through it, which, if it functions as a heat-emitting element, it can then give off again to the air flowing through in the opposite direction. Due to the heat storage in the heat-storing element, energy can therefore be saved, since it takes advantage of the fact that the air at the air inlet and the air outlet of the chamber has different temperatures and through the reversal of air inlet and air outlet and the interim storage of the energy given off by the air at the air outlet in one of the heat-storing elements, this can be recycled when the air enters after the reversal.

As an alternative to a change in direction of the air in the closed air-conditioning cell, the element of the upper level of the at least one chamber that functions as a heat-emitting element at one point in time can be connected to the element of the lower level of the at least one chamber that functions as heat-absorbing element at this point in time in such a way that the two Element are movably interchangeable. Movable can be understood to mean turning, pivoting and / or rotating or some other movement of the two elements with one another or relative to one another. The heat-storing elements of the at least two levels are preferably connected in pairs across the levels, so that elements on the same side of the chamber with different functions, that is to say heat-emitting or heat-absorbing, are connected to one another. This means that the heat-emitting element of the air inlet of the upper level is connected to the heat-absorbing element of the air outlet of the lower level and the heat-absorbing element of the air outlet of the upper level is connected to the heat-emitting element of the air inlet of the lower level. In particular, it is preferred that the two elements of the first and the second side are each rotatable, pivotable, rotatable or otherwise movable about one another, so that they can easily exchange their position. The elements can also be installed slightly offset from one another, so that they are swapped by moving the elements up or down.

Alternatively, the two elements can be two halves of a rotationally symmetrical body, so that the two connected heat-storing elements form two parts of a rotor. The rotation changes which part of the body is heat-absorbing and which is heat-emitting, but not the position of the heat-emitting element, which is always located at the air outlet, or the heat-absorbing element, which is always located at the air inlet. It is therefore particularly preferred that when the heat-storing elements of two levels are rotated, the element of the first level that functions as a heat-absorbing element is changed to an element of the second level that functions as a heat-emitting element and the element of the first level that acts as a heat-emitting element is changed to a heat-absorbing element of the second Level is changed.

The movement of the two connected, heat-storing elements preferably takes place continuously. This leads to a constant change in the two heat-storing elements and a constant change between the heat-absorbing and heat-emitting elements. This has the advantage that the temperature of the body is very constant in the respective area of the air inlet and outlet. More precisely, the temperature profile of the continuously moving heat-storing element in the air inlet area of a first level in the direction of rotation shows the warmest element temperature coming directly after the air outlet area of a second level, with the other area of the air inlet area of the first level, which lies in the direction of rotation in front of the air outlet area of the second level , is a bit colder in comparison. In the case of the air outlet area, the temperature gradient is exactly the opposite, the area following the air inlet of a second level is colder than the area of the air outlet area of a first level, which lies in the direction of rotation in front of the air inlet area of a second level.

As an alternative to a continuous movement, the movement of the two connected, heat-storing elements can preferably take place in discrete steps. Here, the movement of the heat-storing elements can take place at regular time intervals, for example a maximum of 1 minute, preferably less than 30 seconds, particularly preferably less than 10 seconds, at regular, periodic intervals. It is possible, for example, that a rotation of 30 °, 60 °, 120 ° or 180 ° is always carried out. Depending on the shape of the heat-storing elements, it may also be that only a rotation through exactly 180 ° is possible if the body is not rotationally symmetrical. In this case, however, with a horizontally offset installation of the two heat-storing elements, an upward or downward movement of the elements can also lead to an exchange of places. If there is a rotation of the elements, i.e. if the movement is a rotation, there is again a temperature gradient within the heat-storing elements, so that the The air inlet area of a first level, which comes in the direction of rotation directly after the air outlet area of a second level, has a warmer element temperature than the area of the inlet area, which comes in the direction of rotation before the air outlet area of the second level. Conversely, the area of the air outlet area of a first level, which comes in the direction of rotation directly after the air inlet area of a second level, has a colder temperature than the area of the air outlet area of the first level, which is arranged directly in front of the air inlet area of the second level in the direction of rotation.

The closed climate cell preferably comprises several chambers, which are preferably arranged next to one another, so that the air flow flows through the chambers one behind the other. This means that the air flow, when it leaves one side of the first chamber, flows through a short space between the chambers in order to then flow through the side of the second chamber facing the first chamber. While the air flow is circulating, it flows through all of the chambers at the same time. As a result, a stream of air can flow through several chambers and, if present, the spaces between the chambers, one behind the other in the same direction.

A climate regulating element is particularly preferably attached in an intermediate space between two adjacent chambers of the closed climate cell and / or on one side of an individual chamber. The climate regulating element can be, for example, an element for air cooling or for humidity regulation. The air cooling can take place, for example, by the flowing in of cold air or by the introduction of other cold substances, for example cold water droplets. The moisture regulation can be both a moisture reduction and an increase in moisture, whereby a moisture reduction can take place with water filters, air dehumidifiers, or through condensation on cold water droplets. If the air is to be cooled by cool water, any pollutants and impurities can also be removed from the air, as with "air washing". The climate regulating element in the spaces between the chambers offers the advantage that the air can be regulated after each chamber and thus controlled climatic conditions prevail at the beginning of each chamber. Measuring devices that control the air can preferably also be installed in the intermediate spaces so that the air conditions can be readjusted. It is also possible to adjust the chambers to different climatic conditions, for example when plants are in different growth stages in the chambers and other temperatures or humidity are ideal.

Furthermore, it is preferably provided that the heat-storing element has or consists of thermally conductive material, in particular metal, preferably aluminum. Various thermally conductive materials are possible, the main important factor is the heat storage capacity of the thermally conductive material.

Furthermore, the heat-storing element has a plurality of elongated passages and preferably consists of a honeycomb structure or has one. Oblong passages in this case means that the diameter of the passage is smaller than the length of the passage, in particular the length is at least twice as long as the diameter, particularly preferably the length is at least five times as long as the diameter, very particularly preferably corresponds the length ten times the diameter of the passage. It is also possible for the heat-storing element to have a lamellar structure or to be built up from a spiral, with smaller structures such as webs or waves being attached between the circles or spiral arms. The waves can also be arranged between the spiral arms so that the maxima and minima each touch adjacent spiral arms.

The temperature change or the change in humidity of the air of the ventilation system is described here as an example of climate regulation of a chamber with an associated space: Preferably, a temperature of the air of the ventilation system is increased by a heat-emitting element when air enters the chamber and is increased after the air has entered the chamber up to The air outlet increases from this in order to then be lowered at the air outlet from the chamber by the heat-absorbing element and possibly after the chamber in an intermediate space by a climate control element.

For example, the temperature at the air inlet into the chamber can be warmed up from 20 ° C to 22 ° C when it passes the heat-emitting element. In the chamber, the temperature can rise from 22 ° C to 25 ° C, for example, this rise being mainly due to waste heat from the lighting system. At the air outlet of the chamber, the air is cooled by the heat-absorbing element, for example from 25 ° C to 23 ° C, whereby it can be further cooled from 23 ° C to 20 ° C in the space between two chambers, in particular by a climate control element. In the space in between, the humidity can also be reduced from 85% to 65% because the humidity increases as the air flows through the chamber. Ideally, the climate control element in the space between the chambers is both an air-cooling element and is responsible for setting the air humidity. The climate regulating element can particularly preferably regulate the CO2 and / or the oxygen concentration of the air.

Figure list

The invention is explained below by way of example with the aid of preferred embodiments.

• 1: eine klimatisch abgeschlossene Klimazelle mit mehreren Kammern,
• 2a, b: ein wärmespeicherndes Element in einer Seiten- und Vorderansicht,
• 3a, b: den Luftstrom eines Klimasystems zu zwei verschiedenen Zeitpunkten und
• 4a, b: die Rotation eines wärmespeichernden Elements während des Betriebs der abgeschlossenen Klimazelle.

They show schematically:

• 1 : a climatically closed climate cell with several chambers,
• 2a, b : a heat-retaining element in a side and front view,
• 3a, b : the air flow of an air conditioning system at two different times and
• 4a, b : the rotation of a heat-storing element during the operation of the closed climate cell.

Preferred embodiments of the invention

1 shows a closed climate cell 100 for growing plants, which are exemplified by four chambers 10 consists. The chambers 10 are arranged side by side, and by a small space 15th separated from each other. Chambers 10 and spaces 15th however, lie completely within the closed climate cell 100 .

The chambers 10 each comprise several layers 12th which comprise one or more plant growing containers and one or more lighting platforms arranged above them. The locations 12th extend from a first side 11a the chamber 10 to a second page 11b the chamber 10 and are over the full height of the chamber 10 appropriate.

On the first page 11a and the second page 11b the chamber 10 are each one or more heat-storing elements 13th arranged through which one of a ventilation system 21 of a climate system 20th generated airflow 25th (please refer 3 ) can flow or flows. Between the heat-storing elements 13th respectively pages 11a , 11b adjacent chambers 10 is in the space 15th a climate control element 22nd arranged.

The air is through a ventilation system 21 which is in an edge room 16 , who is the closed climate cell 100 terminates on both sides, is attached, through the chambers 10 directed. The chambers 10 include a first level 14a , which in the upper area of the chambers 10 is arranged, and a structurally separate second level 14b showing the lower area of the chambers 10 forms. Even the spaces in between 15th are so in two planes 14a , 14b Cut. The one in the climate cell 100 circulated air flows within one level 14a , 14b always in the same direction, can be in the two different levels 14a , 14b however preferably flow in mutually different directions. The levels 14a , 14b are therefore split in such a way that an air flow 25th cannot overcome the structural separation.

2a shows a side view of a heat storage element 13th , through which an air flow from left to right 25th flows. The airflow 25th flows through passages 31 in the heat-storing element 13th which extends completely from the front 33a on the back 33b extend. The surface structure of the heat-storing element 13th is thereby on the front 33a identical to the back 33b . Between the culverts 31 there is thermally conductive material 32 , which is the heat-retaining element 13th has or what the heat-storing element is made of 13th consists. 2a shows straight through the heat-storing element 13th running culverts 31 , however, in another embodiment, these can also be curved or bent.

2 B shows a front view of a heat storage element 13th , which is the inlet of the passages 31 indicates. Between the culverts 31 are bars made of thermally conductive material 32 shown. The honeycomb structure of the passages is easy to see 31 of the heat-storing element 13th . The diameter of the passages 31 is significantly smaller than the length of the passages 31 so that there is an elongated structure with thin passages 31 results, as it is also in 2a is recognizable. The thermally conductive material 32 is also heat-storing. The outer shape of the heat-storing element 13th can be square or rectangular or round, the heat-storing element 13th but can also have a different shape.

In 3a becomes a closed climate cell 100 shown, which are exemplified by four chambers 10 that consists of a gap 15th are separated from each other. The closed climate cell 100 is on two levels 14a , 14b divided, with both the chambers 10 as well as the spaces in between 15th through a structural separation into these two levels 14a , 14b are divided. The first level 14a is the upper level and the second level 14b is the lower level. The division into two Levels 14a , 14b does not extend through the marginal spaces 16 which in front of the first chamber 10 and after the last chamber 10 are arranged and the climate cell 100 thus complete in the horizontal direction.

In the peripheral areas 16 each is a ventilation system 21 attached, for example a fan. The chambers 10 are from a first page 11a and a second page 11b limited, being between the sides 11a , 11b inside the chambers 10 Locations 12th are arranged, which lie vertically one above the other and run horizontally. Any location 12th consists of one or more plant growing containers and one or more lighting platforms arranged above them.

In each of the levels 14a , 14b is on the first page 11a and the second page 11b a chamber 10 one heat-storing element each 13th attached, through the air or the air flow 25th into the chamber 10 in and out of the chamber 10 can flow out. The chambers 10 and the spaces in between 15th the first level 14a and the second level 14b are thus each connected in such a way that an air flow 25th a level 14a , 14b can flow through unhindered.

In 3a you can see a stream of air 25th clockwise through the first level 14a which is the top level, and the second level 14b , which is the lower level, which flow through the operation of the ventilation system 21 on the left in the edge space 16 is maintained or generated. The airflow 25th flows to the edge space 16 first through the heat-retaining element 13th the first page 11a a chamber 10 which is the air inlet 23 realized in the chamber and as a heat-emitting element 13a acts. Thus there is this heat-storing element 13th when the air flow enters 25th into the chamber 10 stored heat to the airflow 25th away. Inside the chamber is the airflow 25th for example further heated by the lighting. At the air outlet 24 the chamber 10 on the second page 11b acts the heat-storing element 13th as a heat absorbing element 13b . Thus, this heat-storing element takes 13th when the air flow exits 25th out of the chamber 10 stored heat from the air flow 25th and thereby cools the air flow.

Then the air of the air stream flows 25th in a space 15th , in which a climate control element 22nd is appropriate. The climate regulating element 22nd can be controlled by an external controller and thus readjust, set or regulate the air between the first and second chambers.

At the beginning of the second chamber 10 the air now flows through the first side again 11a and an exothermic element 13a through the air inlet 23 into the chamber 10 and at the air outlet 24 through the heat-absorbing element 13b the second page 11b this chamber 10 in the next space 15th .

At the end of the first level 14a becomes the airflow 25th in the edge area 16 to the second level 14b and flows back there in the opposite direction, so that it is the second side first 11b the chamber 10 happens which is the air inlet 23 this chamber 10 represents with the heat-emitting element 13a . After flowing through the chamber 10 leaves the airflow 25th the chamber 10 through the air outlet 24 on the first page 11a the chamber 10 through the heat-absorbing element 13b to get into the gap 15th to get. This air flow 25th or direction of the air flow 25th is in operation of the closed climate cell 100 for several seconds, preferably 30s to 3 min, particularly preferably 60s to 120s and very particularly preferably 90s to 100s.

After that, as in 3b shown, the direction of the air flow 25th vice versa, so that no longer the ventilation system 21 the edge space on the left side of the closed climate cell 100 which drives the air, but rather the ventilation system 21 at the edge 16 the opposite side (shown here on the right). This causes the air of the air stream to flow 25th counterclockwise through the first and second levels 14a , 14b . The air flow then happens 25th on the first level 14a first the second page 11b a chamber 10 , being at the air inlet 23 the heat-emitting element 13a is located. After flowing through the chamber 10 the air enters the air outlet 24 through the heat-absorbing element 13b on the first page 11a the chamber in the space 15th one in which a climate control element 22nd is appropriate. On the second level 14b the air flow circulates 25th upon entering the chamber 10 through the air inlet 23 , so the heat-emitting element 13a on the first page 11a the chamber 10 . After flowing through the chamber 10 the air enters the air outlet 24 through the heat-absorbing element 13b on the second page 11b the chamber 10 out again. The climate regulating element 22nd as well as the ventilation system 21 are part of the climate system 20th which, however, can also include further elements, for example measuring devices, sensors and / or further regulating units.

In 4th is shown schematically as a rotation of the heat-storing element 13th instead of changing the direction of the airflow 25th for switching between the heat-emitting element 13a and heat absorbing element 13b can be used. That heat-retaining element 13th is partly at the height of the first level 14a and the other part at the level of the second level 14b , with the item on the first page 11a or second page 11b the chamber 10 is arranged. The heat-storing element can thereby 13th consist of one or more parts which are arranged at the same level, that is, directly one above the other, but which can also be arranged offset from one another. One way of using the heat-retaining elements 13th to swap is the rotation of the heat-storing elements 13th around a common center, where in 4a the first level 14a the air inlet 23 represents in which the exothermic element 13a is arranged and the second level 14b the air outlet 24 represents in which the heat absorbing element 13b is arranged. This is exemplified in 4b the heat-storing element 13th rotated by 60 °, whereby part of the formerly heat-emitting element 13a the first level 14a now to a heat-absorbing element 13b in the second level 14b has become. The air inlet is as usual 23 on the first level 14a and the air outlet 24 on the second level 14b .

List of reference symbols

100

Climate cell

10

chamber

11a

first page

11b

second page

12th

location

13th

heat-retaining element

13a

heat-emitting element

13b

heat absorbing element

14a

first floor

14b

second level

15th

Space

16

Edge space

20th

Climate system

21

Ventilation system

22nd

Climate control element

23

Air inlet

24

Air outlet

25th

Airflow

31

passage

32

thermally conductive material

33a

front

33b

back

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 1778624 A [0003]
• DE 102016121126 B3 [0004]

Claims (15)

Closed climatic cell (100) for growing plants in several layers (12) arranged one above the other, the climatic cell (100) comprising at least one chamber (10) in which the layers (12) are arranged one above the other and extend from a first side (11a) of the Chamber (10) extending to a second side (11b) of the chamber (10), each layer (12) having at least one plant growing container and at least one lighting platform arranged above it, the climate cell (100) being provided with a climate system (20) the at least one chamber (10) is set, characterized in that a heat-storing element (13) is arranged on the first (11a) and second side (11b) of the at least one chamber (10), one of which is provided by a ventilation system (21 ) the air conditioning system (20) generated air flow (25) flows through both heat-storing elements (13), one of the two sides (11a, 11b) at least one air inlet side (23) and the verb The remaining side forms an air outlet side (24) for the air flow (25), the heat-storing element (13) arranged on the air inlet side (23) acting as a heat-emitting element (13a) and the heat-storing element (13) arranged on the air outlet side (24) acts as a heat-absorbing element (13a). Closed climate cell (100) according to Claim 1 , characterized in that the at least one chamber (10) of the climate cell (100) consists of at least a first and at least a second level (14a, 14b) and the air flow (25) in the first level (14a) and the second level ( 14b) is aligned in the opposite direction. Closed climate cell (100) according to Claim 1 or 2 , characterized in that a direction of the air flow (25) through the at least one chamber (10) can be changed and / or changed. Closed climate cell (100) according to Claim 3 , characterized in that the air-conditioning cell (100) has a ventilation system (21) through which the direction of the air flow (25) can be changed and / or changed. Enclosed air-conditioning cell (100) according to one of the preceding claims, characterized in that the heat-storing elements (13) are rigidly arranged on the first (11a) or second side (11b) of the chamber (10). Closed climate cell (100) according to one of the Claims 3 until 5 , characterized in that after a change in direction of the air flow (25) the function of the two heat-storing elements (13) is swapped, in such a way that the element (13a) previously functioning as a heat-emitting element acts as a heat-absorbing element (13b), and that before as a heat-absorbing element acting element (13b) acts as a heat-emitting element (13a). Closed climate cell (100) according to Claim 2 , characterized in that the element (13b) of the first level (14a) of the at least one chamber (10) functioning as a heat-emitting element at one point in time is movable with the element (13a) of the second level (14b) of the at least one functioning as heat-absorbing element at this point in time a chamber (10) is connected. Closed climate cell (100) according to Claim 7 , characterized in that during the movement of the heat-storing elements (13) of two planes (14a, 14b) the element (13b) of one plane (14a, 14b) functioning as a heat-absorbing element to an element (13a) acting as a heat-emitting element of the other plane ( 14a, 14b) is changed and the element (13a) of one level (14a, 14b) functioning as a heat-emitting element is changed to an element (13b) acting as heat-absorbing element of the other level (14a, 14b). Closed climate cell (100) according to one of the Claims 7 and 8th , characterized in that the two connected, heat-storing elements (13) form two parts of a rotor. Closed climate cell (100) according to one of the Claims 7 until 9 , characterized in that the movement of the two connected, heat-storing elements (13) takes place continuously. Closed climate cell (100) according to one of the Claims 7 until 9 , characterized in that the movement of the two connected, heat-storing elements (13) takes place in discrete steps. Enclosed air-conditioning cell (100) according to one of the preceding claims, characterized in that the air-conditioning cell (100) comprises several chambers (10), which are preferably arranged next to one another, so that the air stream (25) flows through the chambers (25) one behind the other. Enclosed air-conditioning cell (100) according to one of the preceding claims, characterized in that in an intermediate space (15) between two adjacent chambers (10) and / or in an edge space (16) on one side (11a, 11b) of an individual chamber (10 ) a climate control element (22) is attached. Enclosed air-conditioning cell (100) according to one of the preceding claims, characterized in that the heat-storing element (13) comprises or consists of heat-conducting material (32), in particular metal, preferably aluminum. Enclosed air-conditioning cell (100) according to one of the preceding claims, characterized in that the heat-storing element (13) has a plurality of elongated passages (31) and preferably has or consists of a honeycomb structure.

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