CN216601010U - Positive pressure air supply system with heat exchange and refrigeration functions - Google Patents
Positive pressure air supply system with heat exchange and refrigeration functions Download PDFInfo
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- CN216601010U CN216601010U CN202123285220.8U CN202123285220U CN216601010U CN 216601010 U CN216601010 U CN 216601010U CN 202123285220 U CN202123285220 U CN 202123285220U CN 216601010 U CN216601010 U CN 216601010U
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- air
- heat exchange
- air duct
- positive pressure
- air outlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The utility model discloses a positive pressure air supply system with heat exchange and refrigeration functions, which comprises a cold-heat exchanger arranged in a pipeline, wherein an air outlet of the pipeline is connected with an air inlet of a high-pressure fan; wherein, the position close to the air outlet in the pipeline and the air duct are both provided with temperature detecting units. The utility model can supply air in long distance, and supply air uniformly when in use, and can cool in summer and heat in winter. In addition, the fertilizer can also be used for assisting carbon dioxide fertilization when the fertilizer is applied.
Description
Technical Field
The utility model relates to the field of air supply equipment, in particular to a positive pressure air supply system with a heat exchange and refrigeration function.
Background
With the increasing demand of people on consumer goods such as fruits and vegetables and the stricter requirements on quality, the multi-span glass greenhouse is rapidly developed, the building scale of the greenhouse is gradually increased, and the management is more and more precise and intelligent. However, the traditional multi-span glass greenhouse is limited by the window opening area and the window opening structure, and the ventilation and cooling effects of the greenhouse can not be achieved by only natural ventilation, so that multiple obstacles such as large energy consumption in winter heating, difficult cooling in summer and the like are caused. In addition, as the area of the built single bodies of the multi-span glass greenhouse is gradually increased, the length of the greenhouse is inevitably increased, and the air supply distance of the wet curtain is too long, so that the temperature and humidity are not uniformly distributed, the occurrence of greenhouse diseases and insect pests is easily caused, and the environment control cannot be accurately controlled.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a positive pressure air supply system with a heat exchange and refrigeration function, which can supply air for a long distance, uniformly supply air when in ventilation, and can cool in summer and warm in winter. In addition, the fertilizer can also be used for assisting carbon dioxide fertilization when the fertilizer is applied.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a positive pressure air supply system with heat exchange and refrigeration functions comprises a cold heat exchanger arranged in a pipeline, an air outlet of the pipeline is connected with an air inlet of a high-pressure fan, the air outlet of the high-pressure fan is connected with an air duct, a plurality of air outlet holes are formed in the side wall of the air duct, and an air duct blocking plate is arranged at the end part of the air duct; wherein, the position that is close to the air outlet in the pipeline and the wind channel are both provided with temperature detection units.
In an embodiment, the plurality of air outlets form an air outlet group, and the air outlet group is disposed on the side wall of the air duct at equal intervals.
In one embodiment, the diameters of the air outlet holes are the same.
In one embodiment, the air outlet holes comprise a large-diameter air outlet hole and a small-diameter air outlet hole.
In one embodiment, the large-diameter air outlet holes and the small-diameter air outlet holes are alternately arranged.
In an embodiment, be equipped with arc wall and a plurality of air outlet on the air duct closure plate, the arc wall internal slip is equipped with adjusting nut, the rear side of air duct closure plate is equipped with the baffle, adjusting nut connects the baffle.
In one embodiment, the air duct is a thin film air duct.
In one embodiment, the film air duct is a single-layer film air duct or a double-layer film air duct.
In one embodiment, the cold heat exchanger includes a cold exchanger and a heat exchanger.
In one embodiment, a carbon dioxide concentration detection unit is installed in the air duct.
The utility model has the advantages that:
the positive pressure air supply system with the heat exchange and refrigeration functions can be applied to cooling in summer and auxiliary heating in winter, and has the function of assisting in applying carbon dioxide in a greenhouse. The system can create a high-pressure environment for the greenhouse, so that germs, spores, ova and the like outside the greenhouse are relatively more difficult to enter the greenhouse, and the environment suitable for plant growth is ensured.
Drawings
FIG. 1 is a schematic diagram of the main structure of a positive pressure air supply system with heat exchange and refrigeration functions of the present invention;
FIG. 2 is a schematic diagram of the construction of a cold heat exchanger according to the present invention;
FIG. 3 is a schematic structural view of a single layer thin film duct of the present invention;
FIG. 4 is a schematic structural view of a dual layer thin film duct of the present invention;
FIG. 5 is a schematic view of the mechanism of the air chute plate of the present invention.
Detailed Description
The positive pressure air supply system with the heat exchange and refrigeration functions can increase airflow disturbance, and small holes with different distances and different diameters are arranged in the air duct 5, so that hot airflow or cold airflow or carbon dioxide gas with high concentration in the air duct 5 is uniformly fed into the greenhouse under the action of the high-pressure fan 4. The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 exemplarily shows a main structure of a positive pressure air supply system with a heat exchange and refrigeration function, and as shown in fig. 1, the positive pressure air supply system with a heat exchange and refrigeration function provided in this embodiment includes a cold-heat exchanger 2 installed in a pipeline 1, an air outlet of the pipeline 1 is connected to an air inlet of a high-pressure fan 4, an air outlet of the high-pressure fan 4 is connected to an air duct 5, a plurality of air outlet holes 6 are formed in a side wall of the air duct 5, and an air duct blocking plate 7 is arranged at an end of the air duct 5; wherein, the position in the pipeline 1 close to the air outlet and the air duct 5 are both provided with a temperature detection unit 8. By detecting the air temperature in the air duct 5 and the pipeline 1, the amount of the cooling medium or the heating medium introduced into the cooling heat exchanger 2 can be controlled, so that the temperature in the greenhouse can be accurately controlled. Similarly, a carbon dioxide concentration detection unit can be installed in the air duct 5. Carbon dioxide can be pumped into the air inlet of the pipeline 1, so that the concentration of the carbon dioxide in the greenhouse can be controlled by detecting the concentration of the carbon dioxide in the air duct 5 and adjusting the pumping amount of the carbon dioxide. The temperature detection unit 8 includes a temperature sensor. The carbon dioxide concentration detection unit includes a carbon dioxide concentration sensor.
Referring to fig. 2, the cold-heat exchanger 2 includes a cold exchanger and a heat exchanger, and is a heat exchange system for heating or cooling air. When the cold medium flows through the cold exchanger of the device, the air around the cold exchanger is cooled for cooling in summer; when the hot medium flows through the heat exchanger, the air around the heat exchanger is heated for warming in winter. The cold-heat exchanger has a heat exchange function. The heat exchanger 2 in this embodiment is a surface cooler.
The high pressure fan 4 is a high pressure fan, the fan with proper air volume and pressure is configured according to the length of the air duct 5, the high pressure fan 4 is a main functional component of the system, and high pressure is formed through rotation of the high pressure fan 4, so that the atmospheric pressure in the greenhouse is always higher than the external air pressure, and the purposes of ventilation and air exchange are achieved. The high-pressure fan 4 provided by the embodiment can send wind to places other than 100m along the air duct 5, and meets the requirement of large-scale multi-span greenhouse construction.
The air duct 5 is a film air duct, the film air duct can be an air duct with a specific diameter made of a film with proper thickness, and the diameter of the air duct 5 is matched with the diameter of the high-pressure fan 4 properly. The film air duct can be a single-layer film air duct (as shown in fig. 3), or a double-layer film air duct (as shown in fig. 4) which is used by sleeving the air duct with a larger diameter into the air duct with a smaller diameter.
A plurality of air outlet holes 6 can be adopted on the air duct 5 to form an air outlet hole group, and a plurality of air outlet groups are arranged on the side wall of the air duct 5 at equal intervals. The diameters of the air outlets 6 on the air duct 5 may be the same, or the air outlets 6 may include a large-diameter air outlet and a small-diameter air outlet. The major diameter exhaust vent and the minor diameter exhaust vent are arranged alternately. For example, the large-diameter outlet holes may be formed as a large-diameter outlet group, or the small-diameter outlet holes may be formed as a small-diameter outlet group, and the large-diameter outlet group may be alternately arranged. The distance between the air outlet groups is designed according to the flow of the high-pressure fan 4.
Referring to fig. 5, an arc-shaped groove 8 and a plurality of air outlets 9 are arranged on the air duct blocking plate 7, an adjusting nut 3 is slidably arranged in the arc-shaped groove, a baffle is arranged on the rear side of the air duct blocking plate 7, and the adjusting nut 3 is connected with the baffle. The area of the air outlet 9 shielded by the baffle can be controlled by sliding the adjusting nut 3.
The positive pressure air supply system with the heat exchange and refrigeration functions can be installed at the lower part of the plant cultivation tank, saves the space of a greenhouse, and is used for ventilation, heating, carbon dioxide fertilization and other functions in the greenhouse. By disturbing the air flow in the greenhouse, the air is uniformly blown to the canopy of the plant from the lower part of the plant, so that the air disturbance among plants is increased, and the distribution of the air temperature and the carbon dioxide concentration is more uniform.
The above description is of the preferred embodiment of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any changes and modifications based on the equivalent changes and simple substitutions of the technical solution of the present invention are within the protection scope of the present invention without departing from the spirit and scope of the present invention.
Claims (10)
1. A positive pressure air supply system with heat exchange and refrigeration functions is characterized by comprising a cold-heat exchanger arranged in a pipeline, wherein an air outlet of the pipeline is connected with an air inlet of a high-pressure fan, the air outlet of the high-pressure fan is connected with an air duct, a plurality of air outlet holes are formed in the side wall of the air duct, and an air duct blocking plate is arranged at the end part of the air duct; wherein, the position that is close to the air outlet in the pipeline and the wind channel are both provided with temperature detection units.
2. The positive pressure air supply system with heat exchange and refrigeration functions as claimed in claim 1, wherein the plurality of air outlets form an air outlet group, and the plurality of air outlet groups are arranged on the side wall of the air duct at equal intervals.
3. The positive pressure feed air system with heat exchange and refrigeration functions of claim 1, wherein the diameters of the air outlet holes are the same.
4. The positive pressure feed air system with heat exchange and refrigeration functions of claim 1, wherein the air outlet holes comprise a large-diameter air outlet hole and a small-diameter air outlet hole.
5. The positive pressure feed air system with heat exchange and refrigeration functions of claim 4, wherein the large-diameter air outlet holes and the small-diameter air outlet holes are arranged alternately.
6. The positive pressure air supply system with the heat exchange and refrigeration functions as claimed in claim 1, wherein an arc-shaped groove and a plurality of air outlets are formed in the air duct blocking plate, an adjusting nut is slidably arranged in the arc-shaped groove, a baffle plate is arranged on the rear side of the air duct blocking plate, and the adjusting nut is connected with the baffle plate.
7. The positive pressure feed air system with heat exchange and refrigeration functions of claim 1, wherein the air duct is a membrane air duct.
8. The positive pressure air supply system with the heat exchange and refrigeration functions as claimed in claim 7, wherein the film air duct is a single-layer film air duct or a double-layer film air duct.
9. The positive pressure feed air system with heat exchange and refrigeration function according to claim 1, wherein the cold heat exchanger includes a cold exchanger and a heat exchanger.
10. The positive pressure feed air system with the heat exchange and refrigeration functions as claimed in claim 1, wherein a carbon dioxide concentration detection unit is installed in the air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123285220.8U CN216601010U (en) | 2021-12-24 | 2021-12-24 | Positive pressure air supply system with heat exchange and refrigeration functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123285220.8U CN216601010U (en) | 2021-12-24 | 2021-12-24 | Positive pressure air supply system with heat exchange and refrigeration functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216601010U true CN216601010U (en) | 2022-05-27 |
Family
ID=81682827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123285220.8U Active CN216601010U (en) | 2021-12-24 | 2021-12-24 | Positive pressure air supply system with heat exchange and refrigeration functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216601010U (en) |
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2021
- 2021-12-24 CN CN202123285220.8U patent/CN216601010U/en active Active
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