CN210538693U - Low-oxygen air-conditioned cold store - Google Patents
Low-oxygen air-conditioned cold store Download PDFInfo
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- CN210538693U CN210538693U CN201921517521.9U CN201921517521U CN210538693U CN 210538693 U CN210538693 U CN 210538693U CN 201921517521 U CN201921517521 U CN 201921517521U CN 210538693 U CN210538693 U CN 210538693U
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Abstract
The utility model discloses a low oxygen gas-conditioned cold store belongs to the gas-conditioned cold store field, aims at providing a low oxygen gas-conditioned cold store, and its technical scheme main points are including the gas-conditioned cold store, first sealing door has been seted up on the gas-conditioned cold store, it is equipped with the room of falling oxygen to lie in first sealing door one side in the gas-conditioned cold store, the room of falling oxygen is kept away from first sealing door one side and has been seted up the second sealing door, it is equipped with gaseous spray tube to fall the oxygen room top, it is equipped with the gas mixture storage tank to fall the oxygen room outside, gaseous spray tube is kept away from and is fallen oxygen room one end and connect on the gas mixture storage tank, it is equipped with the loading board to fall oxygen room bottom, a plurality of through-holes have been seted up on the loading board, the loading board below is equipped with the absorption chamber, the utility model has the advantages.
Description
Technical Field
The utility model relates to a gas-conditioned cold store field, in particular to low oxygen gas-conditioned cold store.
Background
The controlled atmosphere fresh-keeping storehouse is characterized by that the ratio of nitrogen, oxygen, carbon dioxide and ethylene in the air, humidity, temp. (above freezing critical point) and air pressure are artificially controlled, and the respiration quantity of the cell of the stored material is inhibited to delay its metabolism process, so that it is in near-dormant state, but not in cell death state, so that the texture, colour, taste and nutrient of the stored material can be basically retained for a long time, and the effect of long-term fresh-keeping can be reached. Even if the preserved storage is separated from the atmosphere-controlled preservation environment, the cell life activities of the preserved storage can still keep the normal metabolism rate in the natural environment and cannot be matured and corrupted quickly.
In the existing air-conditioned cold store design, in order to keep food fresh, the oxygen content in the air-conditioned cold store is low, and a certain proportion of mixed gas of nitrogen and carbon dioxide is introduced into the air-conditioned cold store to keep the food fresh.
The Chinese patent with publication number CN207100368U discloses a nitrogen transmission system for an air-conditioned cold store, which comprises two air-conditioned bags, a two-position three-way pneumatic valve, a two-position two-way pneumatic valve, a pressure protection valve and a PVC pipeline, wherein one air-conditioned bag is a nitrogen bag, the other air-conditioned bag is a store air bag, one end of the nitrogen bag is connected with an outlet of a nitrogen making machine through a three-way reducing valve, the other end of the nitrogen bag is connected with a pressure protection valve, and the two-position three-way pneumatic valve is connected with an inlet of a carbon dioxide removing machine; one end of the air bag is respectively connected with the inlet of the nitrogen making machine and the outlet of the carbon dioxide removing machine through two-position three-way pneumatic valves, and the other end of the air bag is connected with a pressure protection valve; one end of the pressure protection valve on the nitrogen bag and the storehouse air bag is connected through a two-position two-way pneumatic valve, and the storehouse air outlet and the storehouse air inlet of the carbon dioxide are respectively connected with the air inlet and the air outlet of the air-conditioned storehouse.
According to the prior art scheme, the oxygen reduction speed of the air-conditioned cold store is increased, the nitrogen utilization rate and the nitrogen production efficiency of the nitrogen production machine are increased, the nitrogen production concentration of the nitrogen production machine is increased, the ultra-low oxygen conditioning environment is favorably realized, and the low-oxygen environment requirement of the air-conditioned cold store can be efficiently realized.
In the actual use process, a small inlet is often arranged on the air-conditioned cold store, so that workers can carry oxygen equipment to enter the air-conditioned cold store for observation and maintenance, but the situation that the outside air is introduced into the air-conditioned cold store when the workers pass in and out can not be completely avoided by reducing the area of the inlet, airflow exchange still exists inside and outside the air-conditioned cold store, the oxygen content in the air-conditioned cold store can be increased, the proportion of carbon dioxide and nitrogen in the air-conditioned cold store can be reduced, and the food preservation effect can be reduced when the oxygen content is increased and the carbon dioxide and nitrogen are scattered slightly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low oxygen gas-conditioned cold store has and introduces the external air to the gas-conditioned cold store when preventing that the staff from passing in and out the gas-conditioned cold store, avoids causing oxygen increase and carbon dioxide and nitrogen gas in the gas-conditioned cold store to scatter and disappear to the advantage of guarantee food fresh-keeping effect.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a low oxygen gas-conditioned cold store, includes the gas-conditioned cold store, first sealing door has been seted up on the gas-conditioned cold store, it is equipped with the oxygen chamber to lie in first sealing door one side in the gas-conditioned cold store, the oxygen chamber is kept away from first sealing door one side and has been seted up the second sealing door, the oxygen chamber top is equipped with gaseous spray tube, the oxygen chamber outside is equipped with the gas mixture storage tank, gaseous spray tube is kept away from oxygen chamber one end and is connected on the gas mixture storage tank, the oxygen chamber bottom is equipped with the loading board, a plurality of through-holes have been seted up on the loading board, the loading board below is equipped.
By adopting the technical scheme, a worker needs to enter the controlled atmosphere storage to check the food preservation condition, the opening of the controlled atmosphere storage is provided with the oxygen reduction chamber, the oxygen reduction chamber is connected with the outside through the first sealing door, the side of the oxygen reduction chamber far away from the first sealing door is provided with the second sealing door for connecting the oxygen reduction chamber with the controlled atmosphere storage, the worker firstly opens the first sealing door and enters the oxygen reduction chamber, the first sealing door and the second sealing door are both in a closed state, at the moment, the gas in the mixed gas storage tank is injected into the oxygen reduction chamber from top to bottom through the gas spray pipe, the air entering the oxygen reduction chamber along with the worker is extruded when the first sealing door is opened, the oxygen and a part of other gases are injected into the mixed gas in the oxygen reduction chamber and are discharged into the absorption cavity below the bearing plate from the through hole on the bearing plate, the gas in the mixed gas storage is the mixed gas of carbon dioxide and nitrogen, and the ratio of the carbon dioxide to the nitrogen is the initial injection ratio of the carbon dioxide to the nitrogen in the controlled atmosphere storage, when the oxygen in the oxygen reduction chamber is discharged, the second sealing door is opened, the workers enter the controlled atmosphere storage, the oxygen reduction chamber is arranged to prevent external oxygen from entering the controlled atmosphere storage, and the mixed gas of the nitrogen and the carbon dioxide in the oxygen reduction chamber can prevent the nitrogen and the carbon dioxide in the controlled atmosphere storage from losing when the door is opened, so that the food preservation effect is ensured.
Furthermore, an exhaust pipe is arranged below the bearing plate in the absorption cavity, one end of the exhaust pipe is connected with an exhaust fan, and an exhaust opening is formed in the exhaust pipe.
Through adopting above-mentioned technical scheme, the exhaust column work that the air exhauster during operation is located between loading board and the absorption solution is bled the processing to the gas that enters into the absorption intracavity from the through-hole on the loading board, will be bled the discharge by oxygen and other gases that enter into in the oxygen reduction chamber, also can take out the processing with the gas of exhaust in the mist storage tank in the in-process of bleeding for enter into the indoor oxygen discharge of oxygen reduction.
Furthermore, a plurality of exhaust pipes are connected to the exhaust fan and evenly arranged below the bearing plate.
Through adopting above-mentioned technical scheme, the exhaust column is equipped with a plurality ofly, can improve convulsions efficiency, accelerates oxygen discharge.
Furthermore, the air suction opening is arranged in a horn shape extending outward in the direction away from the air suction pipe.
By adopting the technical scheme, the flared suction opening can increase the contact area of the suction opening and gas, accelerate the air draft speed and improve the oxygen discharge efficiency.
Furthermore, the oxygen reduction chamber is internally provided with a plurality of rubber belts which are arranged along the height of the oxygen reduction chamber, and the rubber belts are arranged along the width direction of the oxygen reduction chamber and are sequentially pressed on the side walls of the adjacent rubber belts from one side of the air-conditioned cold store.
Through adopting above-mentioned technical scheme, earlier through the rubber tape that sets up in a row when the staff enters into the oxygen reduction room, the staff enters into between first sealing door and the rubber tape earlier, enter into between rubber tape and the second sealing door between two adjacent rubber tapes again, when the staff passes through from between a plurality of rubber tapes, need dial the gap between two adjacent rubber tapes, make things convenient for the staff to get into, simultaneously because the separation in rubber tape, can reduce and enter into between rubber tape and the second sealing door from the air that first sealing door got into.
Furthermore, the two sides of the overlapping part of the rubber belt and the adjacent rubber belt are respectively provided with a sealing gasket in a connecting way.
Through adopting above-mentioned technical scheme, there is the overlap section between two adjacent rubber bands, prevents to pass through between two rubber bands when unmanned process is gas occasionally, and sealed setting of filling up overlaps one side at two rubber bands, can improve the seal between two rubber bands when unmanned process.
Further, the gas nozzle is located between the rubber belt and the second sealing door.
Through adopting above-mentioned technical scheme, when the staff entered into between rubber tape and the second sealing door, the gas injection pipe injected into the gas in the mist storage tank between rubber tape and the second sealing door, need not inject the mist between rubber tape and the first sealing door, can save the injection of mist, also can accelerate the discharge of oxygen simultaneously, when preventing that the second sealing door from opening, nitrogen gas and carbon dioxide in the gas-conditioned storehouse run off, prevent simultaneously that oxygen from entering into the gas-conditioned storehouse.
Furthermore, an oxygen detector is arranged in the oxygen reduction chamber and electrically connected with the second sealing door.
Through adopting above-mentioned technical scheme, the indoor oxygen detector of oxygen reduction detects the indoor oxygen content of oxygen reduction, and when oxygen value control was in certain extent, the staff can operate and open the second sealing door, and when oxygen content was higher, then the second sealing door was in locking state, can not open.
To sum up, the utility model discloses following beneficial effect has:
1. through the arrangement of the oxygen reduction chamber, the oxygen reduction chamber can be filled with oxygen before people enter the air-conditioned cold store, and after external air is isolated, the oxygen brought into the oxygen reduction chamber by people is extruded and discharged through nitrogen;
2. through the arrangement of the exhaust pipe arranged below the bearing plate and the exhaust fan connected to the exhaust pipe, the effect of accelerating absorption of oxygen downwards discharged by the extrusion of nitrogen can be achieved;
3. through the setting of the apron that articulates at the absorption tank top, can play when nobody is in the oxygen reduction room, the apron is articulated to be closed, prevents in debris fall the absorption solution, causes the effect that the absorption solution became invalid.
Drawings
FIG. 1 is a schematic view of the exterior of a controlled atmosphere storage according to an embodiment;
FIG. 2 is a schematic structural diagram for embodying the interior of the oxygen reduction chamber in the embodiment;
FIG. 3 is a schematic cross-sectional view of an embodiment of the oxygen reduction chamber;
FIG. 4 is a schematic diagram of an embodiment for embodying the connection between a plurality of rubber belts;
FIG. 5 is an enlarged view at A in FIG. 4;
FIG. 6 is a schematic structural diagram for embodying the bottom of the oxygen reduction chamber in the embodiment;
fig. 7 is an enlarged view at B in fig. 6.
In the figure, 1, air conditioned cold store; 11. a first sealing door; 12. an oxygen reduction chamber; 13. a second sealing door; 14. a rubber belt; 141. a gasket; 2. a mixed gas storage tank; 21. a gas nozzle; 3. an exhaust fan; 31. an exhaust pipe; 311. an air suction opening; 4. an oxygen detector; 5. a carrier plate; 51. a through hole; 52. an absorption chamber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
a low-oxygen controlled store comprises a controlled store 1, wherein a first sealing door 11 is arranged on the controlled store 1, an oxygen reduction chamber 12 is arranged on one side, located on the first sealing door 11, of the controlled store 1, the oxygen reduction chamber 12 is provided with a second sealing door 13 on the side, far away from the first sealing door 11, of the oxygen reduction chamber 12, a worker with oxygen equipment opens the first sealing door 11 first and enters the oxygen reduction chamber 12, the second sealing door 13 is always closed in the process, after entering the oxygen reduction chamber 12, the first sealing door 11 and the second sealing door 13 are both closed, and then oxygen reduction treatment is carried out in the oxygen reduction chamber 12.
As shown in fig. 2 and 4, the oxygen reduction chamber 12 is provided with a plurality of rubber belts 14 arranged along the height direction of the oxygen reduction chamber 12, the plurality of rubber belts 14 are arranged along the width direction of the controlled atmosphere storage 1, the plurality of rubber belts 14 are sequentially pressed on the side walls of the adjacent rubber belts 14 from one side of the controlled atmosphere storage 1, and the two sides of the overlapping part of the rubber belts 14 and the adjacent rubber belts 14 are respectively provided with a sealing gasket 141 in a connecting manner, i.e. the two sealing gaskets 141 on the two adjacent rubber belts 14 are mutually abutted.
As shown in fig. 2 and 3, the top of the rubber belt 14 is fixedly installed on the top of the oxygen reduction chamber 12, and the bottom of the rubber belt 14 is fixedly connected to the top of the bearing plate 5.
As shown in fig. 2 and 4, after the worker first enters between the first sealing door 11 and the rubber belt 14 and closes the first sealing door 11, the worker may enter between the rubber belt 14 and the second sealing door 13 from a gap between two adjacent rubber belts 14 because the rubber belt 14 is made of an elastic material.
As shown in fig. 2 and 3, due to the elastic material property of the rubber belt 14, when a worker enters between the rubber belt 14 and the second sealing door 13, the air entering between the rubber belt 14 and the second sealing door 13 along with the worker is reduced.
As shown in fig. 2 and 5, when the worker leaves the rubber belt 14, the rubber belt 14 is restored to the original state due to elasticity, and the sealing pad 141 of the overlapped portion of the rubber belt 14 can improve the sealability between the plurality of rubber belts 14, reducing the gas permeation.
As shown in fig. 2, an oxygen detector 4 is arranged in the oxygen reduction chamber 12, the oxygen detector 4 is located on one side of the second sealing door 13, the oxygen detector 4 is electrically connected with the second sealing door 13, when the oxygen content in the oxygen reduction chamber 12 is high, the oxygen detector 4 transmits a signal to the second sealing door 13, the second sealing door 13 is in a locking state and cannot be opened, when the oxygen content in the oxygen reduction chamber 12 is in a proper range, the oxygen detector 4 transmits a signal to the second sealing door 13, and at this time, a worker can open the second sealing door 13 and enter the controlled atmosphere storage 1.
As shown in fig. 2, when the oxygen content in the oxygen reduction chamber 12 is high, the oxygen reduction treatment needs to be performed in the oxygen reduction chamber 12, a mixed gas storage tank 2 is provided outside the oxygen reduction chamber 12, and the mixed gas storage tank 2 is a mixed gas of carbon dioxide and nitrogen, and has the same ratio of carbon dioxide to nitrogen as that injected into the controlled atmosphere storage 1.
As shown in fig. 2 and 3, a gas nozzle 21 is arranged at the top of the oxygen reduction chamber 12, the gas nozzle 21 is located between the rubber belt 14 and the second sealing door 13, so that the gas injection range can be reduced, the mixed gas can be saved, one end of the gas nozzle 21, which is far away from the oxygen reduction chamber 12, is connected with the mixed gas storage tank 2, when a worker is located in the oxygen reduction chamber 12, the first sealing door 11 and the second sealing door 13 are tightly closed, the gas in the mixed gas storage tank 2 is sprayed into the oxygen reduction chamber 12 from the gas nozzle 21, the oxygen reduction chamber 12 is filled, and oxygen and other gases entering the oxygen reduction chamber 12 along with the worker are downwards extruded.
As shown in fig. 2 and 3, a bearing plate 5 is disposed at the bottom of the oxygen reduction chamber 12, a through hole 51 is disposed on the bearing plate 5, an absorption cavity 52 is disposed below the bearing plate 5, an exhaust pipe 31 is disposed below the bearing plate 5, the exhaust pipe 31 is uniformly disposed below the bearing plate 5, and one end of each exhaust pipe 31 is connected to the exhaust fan 3.
As shown in fig. 6 and 7, the suction pipe 31 is provided with a plurality of suction openings 311, and the suction openings 311 are flared and extended away from the suction fan 3.
As shown in fig. 6 and 7, the mixed gas of carbon dioxide and nitrogen gas ejected from the gas nozzle 21 and the plurality of gases including oxygen is sucked through the suction port 311 by the operation of the exhaust fan 3, and then is discharged from the oxygen reduction chamber 12 through the exhaust pipe 31.
When the oxygen content between the rubber band 14 and the second sealing door 13 is reduced to a suitable range, as shown in fig. 2, the worker opens the second sealing door 13 to enter the air-conditioned cold store 1.
The specific implementation process comprises the following steps: the staff opens the first sealing door 11, enter into between first sealing door 11 and the rubber tape 14, enter into between rubber tape 14 and the second sealing door 13 from the gap of rubber tape 14 again, at this moment, oxygen detector 4 sends the oxygen detection result to on the second sealing door 13, when oxygen content is higher, the second sealing door 13 locks tightly, the gas in the gas mixture storage tank 2 is spouted into between rubber tape 14 and the second sealing door 13 from gas nozzle 21, crowd oxygen and other gas around the staff downwards, work through air exhauster 3 and drive the suction opening 311 on the suction pipe 31 and take out gas, discharge gas-conditioned cold storage 1, when oxygen content is lower, the staff can open the second sealing door 13 and enter into gas-conditioned cold storage 1.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. A low-oxygen controlled atmosphere storage comprises a controlled atmosphere storage (1) and is characterized in that: the improved oxygen-reducing air conditioning warehouse is characterized in that a first sealing door (11) is arranged on the air conditioning warehouse (1), an oxygen reducing chamber (12) is arranged on one side of the first sealing door (11) in the air conditioning warehouse (1), the oxygen reducing chamber (12) is far away from one side of the first sealing door (11) and is provided with a second sealing door (13), a gas spray pipe (21) is arranged at the top of the oxygen reducing chamber (12), a mixed gas storage tank (2) is arranged on the outer side of the oxygen reducing chamber (12), one end of the oxygen reducing chamber (12) is far away from the gas spray pipe (21) and is connected onto the mixed gas storage tank (2), a bearing plate (5) is arranged at the bottom of the oxygen reducing chamber (12), a plurality of through holes (51) are formed in the bearing plate (5), and an.
2. The controlled atmosphere low oxygen storage according to claim 1, wherein: an exhaust pipe (31) is arranged below the bearing plate (5) in the absorption cavity (52), one end of the exhaust pipe (31) is connected with an exhaust fan (3), and an exhaust opening (311) is formed in the exhaust pipe (31).
3. A modified atmosphere low oxygen store according to claim 2, wherein: a plurality of exhaust pipes (31) are connected to the exhaust fan (3), and the exhaust pipes (31) are uniformly arranged below the bearing plate (5).
4. A modified atmosphere low oxygen store according to claim 2, wherein: the air suction opening (311) is arranged in a flared outward expansion mode towards the direction far away from the air suction pipe (31).
5. The controlled atmosphere low oxygen storage according to claim 1, wherein: the oxygen reduction chamber (12) is internally provided with a plurality of rubber belts (14) arranged along the height direction of the oxygen reduction chamber (12), and the rubber belts (14) are arranged along the width direction of the oxygen reduction chamber (12) and are sequentially pressed on the side walls of the rubber belts (14) adjacent to the rubber belts (14) from one side of the air-conditioned cold store (1).
6. A modified atmosphere low oxygen storage according to claim 5, wherein: and sealing gaskets (141) are connected and arranged on two sides of the overlapping part of the rubber belt (14) and the adjacent rubber belt (14).
7. A modified atmosphere low oxygen storage according to claim 5, wherein: the gas nozzle (21) is located between the rubber belt (14) and the second sealing door (13).
8. The controlled atmosphere low oxygen storage according to claim 1, wherein: an oxygen detector (4) is arranged in the oxygen reduction chamber (12), and the oxygen detector (4) is electrically connected with the second sealing door (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517521.9U CN210538693U (en) | 2019-09-12 | 2019-09-12 | Low-oxygen air-conditioned cold store |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517521.9U CN210538693U (en) | 2019-09-12 | 2019-09-12 | Low-oxygen air-conditioned cold store |
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| Publication Number | Publication Date |
|---|---|
| CN210538693U true CN210538693U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921517521.9U Active CN210538693U (en) | 2019-09-12 | 2019-09-12 | Low-oxygen air-conditioned cold store |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114667856A (en) * | 2021-12-08 | 2022-06-28 | 中国农业大学 | Cut-flower precooling warehouse |
-
2019
- 2019-09-12 CN CN201921517521.9U patent/CN210538693U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114667856A (en) * | 2021-12-08 | 2022-06-28 | 中国农业大学 | Cut-flower precooling warehouse |
| CN114793669A (en) * | 2021-12-08 | 2022-07-29 | 中国农业大学 | Cut flower pre-refrigeration house control system and method |
| CN114667856B (en) * | 2021-12-08 | 2022-12-20 | 中国农业大学 | Cut flower pre-refrigeration house and control system for cut flower pre-refrigeration house |
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