CN215951852U - Tunnel type liquid nitrogen circulation instant freezer - Google Patents
Tunnel type liquid nitrogen circulation instant freezer Download PDFInfo
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- CN215951852U CN215951852U CN202023005731.5U CN202023005731U CN215951852U CN 215951852 U CN215951852 U CN 215951852U CN 202023005731 U CN202023005731 U CN 202023005731U CN 215951852 U CN215951852 U CN 215951852U
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- liquid nitrogen
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Abstract
The utility model provides a tunnel type liquid nitrogen circulating instant freezer, under the cooperation of a fan and a circulating air duct, redundant gaseous liquid nitrogen is sucked into the circulating air duct through a vent hole and is discharged into a freezing chamber again under the action of pressure, so that the utilization rate of liquid ammonia is improved, and the redundant gaseous liquid nitrogen is prevented from overflowing from the freezing chamber.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to a tunnel type liquid nitrogen circulation instant freezer.
Background
With the further improvement and development of the liquid nitrogen quick freezing technology, the liquid nitrogen quick freezing machine is rapidly and widely applied to the freezing of fish, shrimps, crabs, chickens, ducks, meat, fruits, vegetables and various prefabricated foods, the existing tunnel type quick freezing machine has the condition that gaseous liquid nitrogen overflows from the gap of a freezing chamber, and the loss of the gaseous liquid nitrogen exists in the opening process of a door of the freezing chamber, so that waste is caused, and the utilization rate of the gaseous liquid nitrogen is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides a tunnel type liquid nitrogen circulation instant freezer which improves the utilization rate of gaseous liquid nitrogen.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a tunnel type liquid nitrogen circulation frozen machine, includes freezer, fan and circulation wind channel, is equipped with first circulation wind channel and second circulation wind channel in the freezer, and the top of freezer is located to the fan, be equipped with the ventilation hole of a certain amount on the circulation wind channel.
Furthermore, the first circulating air duct and the second circulating air duct are both L-shaped.
Further, the fan includes an air draft fan and an air supply fan.
Further, the exhaust fan is communicated with the circulating air duct.
Further, the air supply fan is connected with a liquid nitrogen vacuum pipeline, and the liquid nitrogen vacuum pipeline is connected with an external liquid nitrogen emission device.
Compared with the prior art, the utility model has the beneficial effects that: through the cooperation of fan and wind channel, increase gaseous state liquid nitrogen's reuse rate, it is extravagant to reduce to spill over.
Drawings
Fig. 1 is a schematic structural diagram of a tunnel type liquid nitrogen circulation instant freezer.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
As shown in fig. 1, a tunnel type liquid nitrogen circulation instant freezer comprises a freezing chamber 1, a fan and a circulation air duct, wherein a first circulation air duct 7 and a second circulation air duct 8 are arranged in the freezing chamber, the fan is arranged at the top of the freezing chamber, a certain number of ventilation holes 5 are arranged on the circulation air duct, under the condition that an air draft fan 3 works, redundant gaseous liquid nitrogen passes through the first circulation air duct 7 and the second circulation air duct 8 through the ventilation holes 5, the fan comprises the air draft fan 3 and an air supply fan 4, the air supply fan 4 is connected with a liquid nitrogen emission device outside the freezing chamber through a liquid nitrogen vacuum pipeline 6 (zero loss of liquid nitrogen in the conveying process), the vacuum pipeline 6 can realize zero loss of liquid nitrogen in the conveying process, and waste in the conveying process of liquid nitrogen is reduced; the gaseous nitrogen entering the air draft fan 3 is discharged into the freezing chamber again under the action of pressure and is reused, so that the resource waste caused by leakage from the freezing chamber is reduced.
In conclusion, the beneficial effects are as follows: be equipped with two circulation wind channels on the freezer, let unnecessary gaseous state liquid nitrogen under the condition of air exhauster effect, get into circulation wind channel through the ventilation hole, later get into the freezer chamber once more, increase the utilization ratio of liquid nitrogen, avoid too much liquid nitrogen to spill over from the freezer.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the utility model. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (5)
1. The utility model provides a tunnel type liquid nitrogen circulation frozen machine, includes freezer, fan and circulation wind channel, its characterized in that: be equipped with first circulation wind channel and second circulation wind channel in the freezer, the top of freezer is located to the fan, be equipped with the ventilation hole of a certain amount on the circulation wind channel.
2. The tunnel type liquid nitrogen circulation instant freezer according to claim 1, characterized in that: the first circulating air duct and the second circulating air duct are both L-shaped.
3. The tunnel type liquid nitrogen circulation instant freezer according to claim 1, characterized in that: the fan comprises an air draft fan and an air supply fan.
4. The tunnel type liquid nitrogen circulation instant freezer according to claim 3, characterized in that: and the air exhaust fan is communicated with the circulating air duct.
5. The tunnel type liquid nitrogen circulation instant freezer according to claim 3, characterized in that: the air supply fan is connected with a liquid nitrogen vacuum pipeline, and the liquid nitrogen vacuum pipeline is connected with an external liquid nitrogen transmitting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023005731.5U CN215951852U (en) | 2020-12-15 | 2020-12-15 | Tunnel type liquid nitrogen circulation instant freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023005731.5U CN215951852U (en) | 2020-12-15 | 2020-12-15 | Tunnel type liquid nitrogen circulation instant freezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215951852U true CN215951852U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023005731.5U Active CN215951852U (en) | 2020-12-15 | 2020-12-15 | Tunnel type liquid nitrogen circulation instant freezer |
Country Status (1)
| Country | Link |
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| CN (1) | CN215951852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218577A (en) * | 2022-07-26 | 2022-10-21 | 极速(广东)冷链设备有限公司 | Quick-freezing method for gradually utilizing liquid nitrogen cold energy |
-
2020
- 2020-12-15 CN CN202023005731.5U patent/CN215951852U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218577A (en) * | 2022-07-26 | 2022-10-21 | 极速(广东)冷链设备有限公司 | Quick-freezing method for gradually utilizing liquid nitrogen cold energy |
| CN115218577B (en) * | 2022-07-26 | 2024-01-19 | 极速(广东)冷链设备有限公司 | Quick freezing method for gradually utilizing liquid nitrogen cold energy |
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