NZ702599A - Frost and freezing preventing apparatus - Google Patents
Frost and freezing preventing apparatus Download PDFInfo
- Publication number
- NZ702599A NZ702599A NZ702599A NZ70259914A NZ702599A NZ 702599 A NZ702599 A NZ 702599A NZ 702599 A NZ702599 A NZ 702599A NZ 70259914 A NZ70259914 A NZ 70259914A NZ 702599 A NZ702599 A NZ 702599A
- Authority
- NZ
- New Zealand
- Prior art keywords
- fan
- operated
- temperature
- frost
- heater
- Prior art date
Links
- 230000008014 freezing Effects 0.000 title abstract 3
- 238000007710 freezing Methods 0.000 title abstract 3
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Greenhouses (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
To solve the difficulty in efficiently raising the temperature near crops in an energy-saving manner. In a frost and freezing preventing apparatus, a fan disposed at a high position blows air downward from a high place toward a low place and a fan disposed at a low position blows air in a substantially horizontal direction. A heater is provided in the farm field. The fan at the high position is operated only when the temperature in the high place, in which an inversion layer may be caused, is high. After that, if a temperature drop occurs near the crops, the heater is operated. Conversely, if the temperature in the high place, in which an inversion layer may be caused, is equal to or lower than the temperature near the crops, the fan at the high position is not operated and the heater and/or the fan at the low position is operated so that warm air is blown in a substantially horizontal direction. Thus, damage due to freezing and frost can be prevented.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-106277 | 2014-05-22 | ||
| JP2014106277A JP6341752B2 (en) | 2014-05-22 | 2014-05-22 | Anti-frost / freezing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ702599A true NZ702599A (en) | 2019-05-31 |
| NZ702599B NZ702599B (en) | 2019-09-03 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| CN105075755A (en) | 2015-11-25 |
| JP2015221003A (en) | 2015-12-10 |
| JP6341752B2 (en) | 2018-06-13 |
| CN105075755B (en) | 2019-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PSEA | Patent sealed | ||
| RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 04 DEC 2020 BY AJ PARK Effective date: 20191008 |
|
| RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 04 DEC 2021 BY AJ PARK Effective date: 20201118 |
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| RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 04 DEC 2022 BY AJ PARK Effective date: 20211116 |
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| RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 04 DEC 2023 BY AJ PARK Effective date: 20221110 |
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| RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 04 DEC 2024 BY AJ PARK Effective date: 20231127 |