CN221104658U - Fruit and vegetable fresh-keeping treatment system - Google Patents
Fruit and vegetable fresh-keeping treatment system Download PDFInfo
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- CN221104658U CN221104658U CN202323046860.2U CN202323046860U CN221104658U CN 221104658 U CN221104658 U CN 221104658U CN 202323046860 U CN202323046860 U CN 202323046860U CN 221104658 U CN221104658 U CN 221104658U
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- keeping box
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- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 53
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002745 absorbent Effects 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 235000013399 edible fruits Nutrition 0.000 claims 2
- 235000013311 vegetables Nutrition 0.000 claims 2
- 230000006378 damage Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 51
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 210000002381 plasma Anatomy 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003958 fumigation Methods 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000036579 abiotic stress Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004790 biotic stress Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000005305 organ development Effects 0.000 description 1
- 230000021368 organ growth Effects 0.000 description 1
- 230000008557 oxygen metabolism Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Storage Of Fruits Or Vegetables (AREA)
Abstract
The utility model discloses a fruit and vegetable fresh-keeping processing system, which particularly relates to the technical field of agricultural product fresh-keeping, and comprises a fresh-keeping box, a vacuum pump, an N 2 gas cylinder and an H 2 S quantitative conveying device, wherein the fresh-keeping box is used for containing fruits and vegetables to be processed, the fresh-keeping box is connected and communicated with the vacuum pump, the vacuum pump is used for vacuumizing the interior of the fresh-keeping box, the fresh-keeping box is connected and communicated with the N 2 gas cylinder, the H 2 S quantitative conveying device is connected and communicated with the fresh-keeping box, and the H 2 S quantitative conveying device is used for discharging quantitative H 2 S into the fresh-keeping box. The H 2 S concentration control device can control the application concentration of H 2 S, is quick and convenient to implement, is safe and reliable in structure, and reduces harm to human bodies.
Description
Technical Field
The utility model relates to the technical field of agricultural product preservation, in particular to a fruit and vegetable preservation treatment system.
Background
Hydrogen sulfide (H 2 S) is a colorless, corrosive gas with a foul egg smell, which is one of the endogenous signal gas transmitters. The low-concentration H 2 S can be involved in regulating and controlling various physiological metabolic processes in plants, such as promoting seed germination and organ growth and development, maintaining redox balance, enhancing various stress tolerance and the like. At present, research on preservation of picked fruits and vegetables shows that the low-concentration H 2 S treatment can effectively maintain the quality of picked fruits and vegetables, prolong the shelf life, maintain the content of soluble solids and nutrients of fruits and vegetables, regulate the physiological processes of active oxygen metabolism, respiratory metabolism and the like, inhibit the aging of the picked fruits and vegetables, and improve the tolerance of biotic stress and abiotic stress. The H 2 S treatment has a wider application prospect in storage, transportation and fresh-keeping of the picked fruits and vegetables.
When the application concentration of H 2 S for fruit and vegetable fresh-keeping treatment is low, the fresh-keeping capability of the fruits and vegetables is poor, and when the application concentration of H 2 S for fruit and vegetable fresh-keeping treatment is high, the residual concentration of H 2 S on the fruits and vegetables can be increased, and the human health can be seriously harmed. Only when the application concentration of H 2 S for fruit and vegetable fresh-keeping treatment is very 10-100 mu L/L, the effective fresh-keeping effect can be produced, the residual concentration of H 2 S on fruits and vegetables is lower than the endogenous H 2 S level (116.48 mu L/L) of human blood plasma, and the H 2 S has no toxic or harmful effect on fruit and vegetable products.
However, in the existing fresh-keeping technology for treating fruits and vegetables by using H 2 S, H 2 S is released mainly by fumigating with NaHS solution, so that the applied concentration dosage of the treated H 2 S is difficult to realize accurate control, and the guidance of practical application concentration is not facilitated.
Disclosure of utility model
The utility model aims to provide a fruit and vegetable fresh-keeping treatment system which solves the problems in the prior art, can control the application concentration of H 2 S, is quick and convenient to implement, is safe and reliable in structure and reduces harm to human bodies.
In order to achieve the above object, the present utility model provides the following solutions:
The utility model provides a fruit and vegetable fresh-keeping processing system which comprises a fresh-keeping box, a vacuum pump, an N 2 gas cylinder and an H 2 S quantitative conveying device, wherein the fresh-keeping box is used for containing fruits and vegetables to be processed, the fresh-keeping box is connected and communicated with the vacuum pump, the vacuum pump is used for vacuumizing the interior of the fresh-keeping box, the fresh-keeping box is connected and communicated with the N 2 gas cylinder, the H 2 S quantitative conveying device is connected and communicated with the fresh-keeping box, and the H 2 S quantitative conveying device is used for discharging quantitative H 2 S into the fresh-keeping box.
Preferably, the fresh-keeping box comprises a box body and a box cover, the box cover is connected with the box body and can enable the box body to be sealed, an opening is formed in the box cover, gas in the fresh-keeping box can be discharged through the opening, gas outside the fresh-keeping box can enter the fresh-keeping box through the opening, and the opening can be sealed by a sealing plug.
Preferably, a commodity shelf is arranged in the box body, and the fruit and vegetable products to be processed can be placed on the commodity shelf.
Preferably, the fresh-keeping box is connected and communicated with the N 2 gas cylinder through a conveying pipeline, a three-way valve is arranged on the conveying pipeline, a first port of the three-way valve is communicated with the fresh-keeping box, a second port of the three-way valve is communicated with the vacuum pump, and a third port of the three-way valve is communicated with the N 2 gas cylinder.
Preferably, the fresh-keeping box further comprises a recovery pump and an absorption device, wherein the absorption device is connected and communicated with the fresh-keeping box through a recovery pipeline, and the recovery pump is arranged on the recovery pipeline.
Preferably, the absorption device is filled with an alkaline H 2 S absorbent.
Preferably, the air inlet end of the vacuum pump is connected with the first valve.
Preferably, the gas outlet of the N 2 gas cylinder is connected with a second valve.
Preferably, the air inlet end of the absorption device is connected with a third valve.
Compared with the prior art, the utility model has the following technical effects:
The utility model provides a fruit and vegetable fresh-keeping processing system, wherein a fresh-keeping box for containing fruits and vegetables to be processed is connected and communicated with a vacuum pump, the vacuum pump can vacuumize the fresh-keeping box, air and moisture in the fresh-keeping box are removed, and the influence on the concentration of H 2 S is reduced; n 2 gas cylinder and H 2 S quantitative conveying device are connected and communicated with the fresh-keeping box, N 2 gas cylinder and H 2 S quantitative conveying device are opened, under the action of pressure difference, quantitative H 2 S gas in N 2 and H 2 S quantitative conveying device in N 2 gas cylinder enters the fresh-keeping box after vacuumizing, quantitative H 2 S gas can be conveyed according to the volume of the fresh-keeping box, the application concentration of H 2 S gas in the fresh-keeping box can be accurately controlled, fresh keeping of fruits and vegetables can be kept, the storage life of the fruits and vegetables is prolonged, the residual concentration of H 2 S on the fruits and vegetables is lower than the endogenous H 2 S level (5.2X10 -6 M) of human blood plasma, and the method has the advantages of safety, no toxicity, safety, convenience, high precision and easiness in control compared with other fumigation methods.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fruit and vegetable fresh-keeping treatment system of the utility model.
In the figure: 1-a box body; 2-a case cover; 3-a commodity shelf; 4-sealing plugs; 5-a conveying pipeline; 6-a three-way valve; 7-a vacuum pump; 8-a first valve; 9-N 2 gas cylinders; 10-a second valve; 11-H 2 S quantitative conveying device; 12-a recovery pump; 13-a third valve; 14-an absorption device.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a fruit and vegetable fresh-keeping treatment system which solves the problems in the prior art, can control the application concentration of H 2 S, is quick and convenient to implement, is safe and reliable in structure and reduces harm to human bodies.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The embodiment provides a fruit and vegetable fresh-keeping processing system, as shown in figure 1, which comprises a fresh-keeping box, a vacuum pump 7, an N 2 gas cylinder 9 and an H 2 S quantitative conveying device 11, wherein the fresh-keeping box is used for containing fruits and vegetables to be processed, the fresh-keeping box is connected and communicated with the vacuum pump 7, the vacuum pump 7 is used for vacuumizing the interior of the fresh-keeping box, the fresh-keeping box is connected and communicated with the N 2 gas cylinder 9, the H 2 S quantitative conveying device 11 is connected and communicated with the fresh-keeping box, the H 2 S quantitative conveying device 11 is used for discharging quantitative H 2 S into the fresh-keeping box, the fresh-keeping box filled with the fruits and vegetables to be treated is connected and communicated with the vacuum pump 7, the vacuum pump 7 can vacuumize the fresh-keeping box, air and moisture in the fresh-keeping box are removed, and the influence on the concentration of H 2 S is reduced; the N 2 gas cylinder 9 and the H 2 S quantitative conveying device 11 are connected and communicated with the fresh-keeping box, the N 2 gas cylinder 9 and the H 2 S quantitative conveying device 11 are opened, under the action of pressure difference, quantitative H 2 S gas in the N 2 and H 2 S quantitative conveying device 11 in the N 2 gas cylinder 9 enters the fresh-keeping box after vacuumizing, quantitative H 2 S gas can be conveyed according to the volume of the fresh-keeping box, the application concentration of H 2 S gas in the fresh-keeping box is accurately controlled, the fresh-keeping method can keep the fresh of the fruits and vegetables, prolongs the storage life of the fruits and vegetables, ensures that the residual concentration of H 2 S on the fruits and vegetables is lower than the endogenous H 2 S level (116.48 mu L/L) of human plasma, has safe and nontoxic effects on fruit and vegetable products, and is safe, convenient, high in precision and easy to control compared with other fumigation methods. Further, the quantitative H 2 S delivering device 11 may be a syringe with a capacity mark, and deliver the quantitative H 2 S gas matched with the volume of the fresh-keeping box into the fresh-keeping box. N 2 is widely applied to the food fresh-keeping industry to replace air, the commercialization degree of the use is high, the process is mature, and meanwhile, compared with other inert gases, the nitrogen has low cost and convenient manufacturing process, and is more suitable for the fruit and vegetable fresh-keeping industry.
It is further preferable in the embodiment of the present embodiment that the fresh-keeping box includes a box body 1 and a box cover 2, the box cover 2 is connected with the box body 1 and can enable the box body 1 to be sealed, an opening is formed in the box cover 2, gas in the fresh-keeping box can be discharged through the opening, gas outside the fresh-keeping box can enter the fresh-keeping box through the opening, the opening can be sealed by the sealing plug 4, the box cover 2 is opened, fruits and vegetables to be processed can be placed in the fresh-keeping box, the sealing plug 4 of the opening is opened, vacuum can be pumped into the fresh-keeping box, or N 2 and H 2 S gas enter the fresh-keeping box, the sealing plug 4 can seal the opening, and the fresh-keeping box is kept in a sealed state.
In the embodiment of the present embodiment, it is further preferable that a shelf 3 is provided in the case 1, and the fruit and vegetable product to be processed can be placed on the shelf 3, and the shelf 3 is preferably a shelf 3 having ventilation holes, so that the ventilation of the gas can be facilitated.
In the embodiment of the present embodiment, it is further preferred that the fresh-keeping tank is connected and communicated with the N 2 gas cylinder 9 through the conveying pipeline 5, the conveying pipeline 5 is provided with a three-way valve 6, a first port of the three-way valve 6 is communicated with the fresh-keeping tank, a second port of the three-way valve 6 is communicated with the vacuum pump 7, a third port of the three-way valve 6 is communicated with the N 2 gas cylinder 9, an air inlet end of the vacuum pump 7 is connected with the first valve 8, an air outlet of the N 2 gas cylinder 9 is connected with the second valve 10, the first port of the three-way valve 6 is communicated with the second port at first, the first valve 8 and the vacuum pump 7 are opened to enable vacuumizing of the fresh-keeping tank, then the first port of the three-way valve 6 is communicated with the third port, the second valve 10 is opened, and N 2 gas of the N 2 gas cylinder 9 enters the fresh-keeping tank under the action of a pressure difference. Further preferably, the H 2 S dosing device 11 is connected to and communicates with the delivery line 5.
In the embodiment of the present embodiment, it is further preferred that the fruit and vegetable fresh-keeping processing system further includes a recovery pump 12 and an absorption device 14, the absorption device 14 is connected and communicated with the fresh-keeping box through a recovery pipeline, the recovery pump 12 is disposed on the recovery pipeline, an air inlet end of the absorption device 14 is connected with a third valve 13, after a period of sealed fresh-keeping of fruits and vegetables in the fresh-keeping box, the third valve 13 and the recovery pump 12 are opened, and redundant gas in the fresh-keeping box can be pumped into the absorption device 14, so that when an operator opens the fresh-keeping box to take the fruits and vegetables in the fresh-keeping box, the irritation of the H 2 S gas to the human body is reduced.
In the embodiment of this example, it is further preferable that the absorption device 14 is filled with an alkaline H 2 S absorbent, and the alkaline H 2 S absorbent is capable of absorbing H 2 S gas, so as to reduce the harm of the H 2 S gas to the human body and the environment.
Example 2
The embodiment is a method for processing fruit and vegetable fresh-keeping by using the fruit and vegetable fresh-keeping processing system of embodiment 1, comprising the following steps:
Step 1, opening a box cover 2, placing the fruit and vegetable products to be processed on a material rack in a box body 1, and covering the box cover 2 to enable a fresh-keeping box to form a sealed cavity;
step 2, adjusting a sealing plug 4 of an opening of the box cover 2 to an open state, communicating a first port and a second port of a three-way valve 6, opening a vacuum pump 7 and a first valve 8, vacuumizing the fresh-keeping box, closing the vacuum pump 7 and the first valve 8 after vacuumizing is finished, and recording a vacuum pressure value of the vacuum pump 7;
Step 3, the first port of the three-way valve 6 is communicated with the third port, the second valve 10 and the N 2 gas cylinder 9 are opened, the pressure gauge parameters of the gas cylinder 9 are recorded, N 2 in the N 2 gas cylinder 9 enters a fresh-keeping box under the pressure difference, fruits and vegetables in the fresh-keeping box are preprocessed, when the pressure value is equal to the vacuum pressure value in the step 2, the preprocessing is finished, and the second valve 10 and the N 2 gas cylinder 9 are closed after the preprocessing is finished;
Step 4, the first port of the three-way valve 6 is communicated with the second port, the vacuum pump 7 and the first valve 8 are opened again, the N 2 filled into the fresh-keeping box in the step 3 is pumped out, and the vacuum pump 7 and the first valve 8 are closed after the vacuumizing is finished;
Step 5, the first port of the three-way valve 6 is communicated with the third port, the second valve 10 and the N 2 gas cylinder 9 are opened, the pressure gauge parameters of the gas cylinder 9 are recorded, meanwhile, the H 2 S quantitative conveying device 11 is opened, N 2 gas and quantitative H 2 S gas flow into the fresh-keeping box under the action of pressure difference, H 2 S gas takes N 2 gas as carrier gas to be introduced into the fresh-keeping box, when the reduction of the pressure value is equal to the vacuum pressure value in the step 2, the second valve 10 and the N 2 gas cylinder 9 are closed after the treatment is finished, the sealing plug 4 seals the opening of the box cover 2, and the fresh-keeping box is in a closed state;
step 6, sealing the fresh-keeping box for 10-40min;
And 7, after the closing treatment time is reached, adjusting the sealing plug 4 of the opening of the box cover 2 to an open state, opening the third valve 13 and the recovery pump 12, sucking residual gas in the fresh-keeping box into the absorbing device 14, closing the third valve 13 and the recovery pump 12 after the end, and opening the box cover 2 to take out the fresh-keeping treated fruits and vegetables.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (6)
1. A fruit and vegetable fresh-keeping processing system is characterized in that: including fresh-keeping case, vacuum pump, N 2 gas cylinder and H 2 S quantitative conveyor, fresh-keeping case is used for splendid attire fruit vegetables to be handled, fresh-keeping case with the vacuum pump is connected and communicates, the vacuum pump is used for right fresh-keeping incasement portion evacuation, fresh-keeping case with N 2 gas cylinder is connected and communicates, H 2 S quantitative conveyor with fresh-keeping case is connected and communicates, H 2 S quantitative conveyor is used for discharging quantitative H 2 S to fresh-keeping case in, fresh-keeping case includes box and case lid, the case lid with the box is connected and can make the box is sealed, open on the case lid, gas in the fresh-keeping case can be discharged through the opening, gas outside the fresh-keeping case can be passed through the opening gets into fresh-keeping case, the opening can be sealed by the sealing plug, be provided with the supporter in the box, the fruit vegetables products of waiting to handle can be placed on the supporter, fresh-keeping case pass through the delivery line with N 2 is connected and communicates, the delivery line is provided with the gas cylinder and can make the box is sealed, the three-way valve is connected with the three-way valve, the three-way valve is connected with the three way valve.
2. The fruit and vegetable fresh-keeping processing system according to claim 1, wherein: still include recovery pump and absorbing device, absorbing device pass through the recovery pipeline with fresh-keeping case is connected and communicates, the recovery pump sets up on the recovery pipeline.
3. The fruit and vegetable fresh-keeping processing system according to claim 2, wherein: the absorption device is filled with an alkaline H 2 S absorbent.
4. The fruit and vegetable fresh-keeping processing system according to claim 1, wherein: and the air inlet end of the vacuum pump is connected with the first valve.
5. The fruit and vegetable fresh-keeping processing system according to claim 1, wherein: and an air outlet of the N 2 air cylinder is connected with a second valve.
6. The fruit and vegetable fresh-keeping processing system according to claim 2, wherein: and the air inlet end of the absorption device is connected with a third valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323046860.2U CN221104658U (en) | 2023-11-10 | 2023-11-10 | Fruit and vegetable fresh-keeping treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323046860.2U CN221104658U (en) | 2023-11-10 | 2023-11-10 | Fruit and vegetable fresh-keeping treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221104658U true CN221104658U (en) | 2024-06-11 |
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ID=91338947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323046860.2U Active CN221104658U (en) | 2023-11-10 | 2023-11-10 | Fruit and vegetable fresh-keeping treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221104658U (en) |
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2023
- 2023-11-10 CN CN202323046860.2U patent/CN221104658U/en active Active
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