Fresh-keeping refrigeration house for agricultural products
By employing composite insulation and moisture-proof structures in the cold storage, combined with vertical airflow paths and uniform cold air delivery, the problems of uneven cold air distribution and insufficient insulation performance have been solved, thereby improving the quality of fruit and vegetable storage and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional cold storage facilities suffer from uneven air distribution and insufficient insulation, leading to a decline in the quality of stored fruits and vegetables and an increase in operating costs.
It adopts a composite insulation and moisture-proof structure, combined with a vertical airflow path and a uniform cold air delivery mechanism. By setting up return air panels and air duct networks in the cold storage, it achieves uniform distribution and efficient recovery of cold air. Polyurethane foam material and food-grade PE anti-mildew board are used to improve insulation performance.
It achieves uniform distribution of cold air within the cold storage, improves the quality of stored fruits and vegetables, and reduces operating costs by minimizing cold energy loss.
Smart Images
Figure CN224034098U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of agricultural product fresh-keeping technology, and particularly relates to a fresh-keeping refrigeration house for agricultural products. BACKGROUND
[0002] The fresh-keeping refrigeration house generally refers to a facility that can artificially control and maintain stable low temperature by using various equipment for refrigeration; and the basic components thereof are: a cold air unit; an electric control device; a warehouse with certain heat insulation performance; and an accessory building.
[0003] The traditional fresh-keeping refrigeration house adopts a single air supply mode, which leads to uneven distribution of cold air, too low temperature in the area close to the cold air unit, and too high temperature in the remote area, thereby affecting the storage quality of fruits and vegetables; meanwhile, the insufficient performance of the heat preservation material of the refrigeration house leads to waste of electric energy and increase of the operation cost of the refrigeration house.
[0004] The information disclosed in the background section of this document is only intended to increase the understanding of the general background of the present utility model, and should not be considered as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims to provide a fresh-keeping refrigeration house for agricultural products, which can solve the problem of uneven distribution of cold air in the refrigeration house and affect the storage quality of fruit trees, and the problem of high operation cost caused by poor heat preservation performance of the refrigeration house.
[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by a specific embodiment of the utility model is as follows:
[0007] A fresh-keeping refrigeration house for agricultural products comprises:
[0008] The refrigeration house body mechanism comprises a composite heat preservation structure and a moisture-proof structure, the composite heat preservation mechanism comprises a structure protection layer, a heat preservation layer and a health protection layer, the structure protection layer, the heat preservation layer and the health protection layer are sequentially arranged from outside to inside, the structure protection layer is used for protecting the outer layer and is a structural member of the refrigeration house; the heat preservation layer is used for heat preservation of the refrigeration house, and the heat preservation layer is used for avoiding conduction of internal and external temperatures; the health protection layer is an internal protection member and is used for contacting the agricultural products. The moisture-proof structure is arranged at the bottom of the composite heat preservation structure, so as to form the fresh-keeping refrigeration house with excellent heat preservation and moisture-proof performance. The moisture-proof structure comprises a return air plate arranged at the top layer, a plurality of honeycomb holes are formed in an array on the return air plate, when the cold air moves from top to bottom, the cold air naturally sinks into the plurality of honeycomb holes on the return air plate, so as to recycle the cold air, form a vertical air flow path from top to bottom, and effectively avoid the temperature stratification problem caused by the traditional horizontal air supply.
[0009] The cold air conveying mechanism comprises a wind pipe network which is installed on the inner side wall of the top of the composite heat preservation structure, and a plurality of cold air conveying nozzles are installed on the bottom of the wind pipe network; the wind pipe network is arranged on the top of the cold storage, and the cold air is uniformly conveyed into the cold storage through the plurality of cold air conveying nozzles on the bottom of the wind pipe network, so that the cold air moves from top to bottom in the cold storage, thereby uniformly distributing the cold air in the cold storage and facilitating the recycling of the cold air through the air return plate, and the storage quality of fruits and vegetables is improved.
[0010] In one or more embodiments of the present application, the heat preservation layer is made of polyurethane foaming material, which has the characteristics of light weight and low thermal conductivity, thereby making the heat preservation layer have excellent heat preservation performance. The sanitary protection layer is made of food-grade PE mildew-resistant board, so that the sanitary protection layer meets the food contact material standard, is non-toxic and odorless, and inhibits the growth of mold; and the surface of the sanitary protection layer is smooth and does not stain, and can be directly washed with water to avoid contamination of agricultural products; the surface resistivity of the PE board is low, reducing electrostatic adsorption of dust, and reducing the risk of condensation through a hydrophilic coating.
[0011] In one or more embodiments of the present application, a sealing door is installed on the side wall of the composite heat preservation structure, and the sealing door is a heat preservation door.
[0012] In one or more embodiments of the present application, the moisture-proof structure further comprises a foundation base layer, a moisture-proof layer and a heat preservation plate, which are sequentially arranged from bottom to top, thereby making the moisture-proof structure have good heat preservation and moisture-proof performance.
[0013] In one or more embodiments of the present application, a plurality of air return plates are provided, and the plurality of air return plates are sequentially laid on the heat preservation plate, and the heat preservation plate is provided with an air return channel. Since the honeycomb holes are provided on the air return plate, foreign matters can enter the air return plate. Therefore, in order to facilitate cleaning of the air return plate during cleaning of the cold storage, the air return plate is assembled in blocks, so that the air return plate can be easily disassembled and cleaned. After the cold air is recycled through the honeycomb holes, it can be recycled through the air return channel for reuse.
[0014] In one or more embodiments of the present application, the opening rate of the plurality of honeycomb holes on the air return plate is greater than or equal to 60%, thereby ensuring the recycling efficiency of the honeycomb holes for the cold air in the cold storage.
[0015] In one or more embodiments of the present application, the wind pipe network comprises a main wind pipe and a plurality of branch wind pipes, and the main wind pipe is fixedly installed on the inner side wall of the top of the composite heat preservation structure.
[0016] In one or more embodiments of the utility model, the main air pipe is arranged as a rectangular structure, and multiple branch air pipes are installed at equal intervals between the pipelines on both sides of the main air pipe, so that the air pipe network occupies a larger space in the cold storage through the main air pipe and the branch air pipes.
[0017] In one or more embodiments of the utility model, the cold air conveying nozzle comprises multiple first nozzles and multiple second nozzles, the multiple first nozzles are installed at equal intervals on the bottom of the main air pipe, the multiple second nozzles are installed at equal intervals on the bottom of the branch air pipe, and the cold air can be uniformly conveyed into the cold storage through the first nozzles and the second nozzles.
[0018] In one or more embodiments of the utility model, the top of the composite heat preservation structure is installed with a conveying pipe in a penetrating manner, the lower end of the conveying pipe is installed on the air inlet of the main air pipe, and the other end of the conveying pipe is installed with a cold air unit, so that the cold air prepared by the cold air unit is conveyed into the main air pipe through the conveying pipe.
[0019] Compared with the prior art, the fresh-keeping cold storage formed by the combination of the composite heat preservation structure and the moisture-proof structure has excellent heat preservation performance, and the frost formation is reduced and the cold air recycling rate is improved through the sanitary protective layer and the air return plate, thereby effectively reducing the operation cost of the cold storage; the cold air is uniformly distributed in the cold storage through the cold air conveying mechanism, and the storage quality of fruits and vegetables is improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments in the utility model, and other drawings can be obtained by those skilled in the art without creative labor.
[0021] Figure 1 It is a perspective view of the fresh-keeping cold storage for agricultural products in an embodiment of the utility model;
[0022] Figure 2 It is a sectional view of the fresh-keeping cold storage for agricultural products in an embodiment of the utility model;
[0023] Figure 3 It is a perspective view of the fresh-keeping cold storage for agricultural products in an embodiment of the utility model; Figure 2
[0024] Figure 4 It is a bottom view of the cold storage in the utility model;
[0025] Figure 5 It is a schematic view of the air return plate in the utility model;
[0026] Figure 6 Figure 1 is a schematic diagram of the air pipe network in the utility model.
[0027] Main figure mark explanation:
[0028] 1-cold storage body mechanism, 11-structure protective layer, 12-thermal insulation layer, 13-health protection layer, 14-foundation base layer, 15-moisture-proof layer, 16-thermal insulation board, 17-return air plate, 18-honeycomb hole, 19-sealing door, 2-cold air conveying mechanism, 21-main air pipe, 22-branch air pipe, 23-first nozzle, 24-second nozzle, 25-conveying pipe, 26-cold air unit. DETAILED DESCRIPTION
[0029] In order to make the person in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.
[0030] As shown in Figure 1 and Figure 2 , an embodiment of the utility model is a fresh-keeping cold storage for agricultural products, which comprises a cold storage body mechanism 1 and a cold air conveying mechanism 2.
[0031] As shown in Figures 1 to 5 , the cold storage body mechanism 1 comprises a composite thermal insulation structure and a moisture-proof structure. The composite thermal insulation mechanism comprises a structure protective layer 11, a thermal insulation layer 12 and a health protection layer 13. The structure protective layer 11, the thermal insulation layer 12 and the health protection layer 13 are sequentially arranged from outside to inside. The structure protective layer 11 is used for protecting the outer layer and is a structural member of the cold storage. The thermal insulation layer 12 is used for thermal insulation of the cold storage and avoids the conduction of internal and external temperature through the thermal insulation layer 12. The health protection layer 13 is an internal protective member and is used for contacting the agricultural products. The moisture-proof structure is arranged at the bottom of the composite thermal insulation structure so as to form the fresh-keeping cold storage with excellent thermal insulation and moisture-proof performance. The moisture-proof structure comprises a return air plate 17 arranged at the top layer. A plurality of honeycomb holes 18 are arranged on the return air plate 17 in an array. When the cold air moves from top to bottom, the cold air naturally sinks into the plurality of honeycomb holes 18 on the return air plate 17 so as to recycle the cold air and form a vertical air flow path from top to bottom, which effectively avoids the temperature stratification problem caused by the traditional horizontal air supply.
[0032] Preferably, the heat preservation layer 12 is made of polyurethane foam material, which has the characteristics of light weight and low thermal conductivity, so that the heat preservation layer 12 has excellent heat preservation performance. The sanitary protection layer 13 is made of food-grade PE mildew-resistant board, so that the sanitary protection layer 13 meets the food contact material standard, is non-toxic and odorless, and inhibits the growth of mold; and the surface of the sanitary protection layer 13 is smooth and does not stain, and can be directly washed with water to avoid contamination of agricultural products; the surface resistivity of the PE board is low, reducing static adsorption of dust, and the risk of condensation is reduced through a hydrophilic coating.
[0033] As shown in Figure 1 , a sealing door 19 is installed on the side wall of the composite heat preservation structure, and the sealing door 19 is a heat preservation door.
[0034] As shown in Figure 2 , in combination with Figure 3 , the moisture-proof structure further includes a foundation base layer 14, a moisture-proof layer 15 and a heat preservation plate 16, which are sequentially arranged from bottom to top, so that the moisture-proof structure has good heat preservation and moisture-proof performance.
[0035] As shown in Figure 4 , the air return plate 17 is provided with a plurality of air return plates 17, which are sequentially laid on the heat preservation plate 16, and the heat preservation plate 16 is provided with an air return channel. Since the honeycomb holes 18 are provided on the air return plate 17, foreign matter and the like will enter, so in order to facilitate cleaning of the air return plate 17 during cleaning of the cold storage, the air return plate 17 is assembled in blocks to facilitate disassembly and cleaning of the air return plate 17. At the same time, the cold air recovered through the honeycomb holes 18 can be recycled and reused through the air return channel.
[0036] It should be noted that the cold air recovered by the air return channel is transported to the cold air fan unit 26 through the pipeline. Since the air return channel transports cold air to the cold air fan unit 26, which is prior art, the air return channel and the air return pipeline are not shown in the drawings of the present application.
[0037] As shown in Figure 5 , the opening rate of the plurality of honeycomb holes 18 on the air return plate 17 is ≥60%, which ensures the recycling efficiency of the honeycomb holes 18 for the cold air in the cold storage.
[0038] As shown in Figure 1 and Figure 2 , the cold air conveying mechanism 2 includes a wind pipe network installed on the inner side wall of the top of the composite heat preservation structure, and the bottom of the wind pipe network is provided with a plurality of cold air conveying nozzles. By providing the wind pipe network on the top of the cold storage and uniformly conveying cold air to the cold storage through the plurality of cold air conveying nozzles at the bottom of the wind pipe network, the cold air moves from top to bottom in the cold storage, so that the cold air in the cold storage is uniformly distributed, and the cold air is easily recycled through the air return plate 17, improving the storage quality of fruits and vegetables.
[0039] As Figure 2 and Figure 6 shown, the air pipe network includes a main air pipe 21 and a plurality of branch air pipes 22, the main air pipe 21 is installed on the inner side wall of the top of the composite heat preservation structure in a fixed manner.
[0040] As Figure 6 shown, the main air pipe 21 is arranged in a rectangular structure, and the plurality of branch air pipes 22 are installed at equal intervals between the pipelines on both sides of the main air pipe 21, so that the air pipe network occupies a larger space in the cold storage by the main air pipe 21 and the branch air pipes 22.
[0041] As Figure 2 and Figure 6 shown, the cold air delivery nozzle includes a plurality of first nozzles 23 and a plurality of second nozzles 24, the plurality of first nozzles 23 are installed at equal intervals at the bottom of the main air pipe 21, and the plurality of second nozzles 24 are installed at equal intervals at the bottom of the branch air pipe 22, so that the cold air can be uniformly delivered into the cold storage by the first nozzles 23 and the second nozzles 24.
[0042] As Figure 2 shown, the top of the composite heat preservation structure is installed with a delivery pipe 25 in a penetrating manner, the lower end of the delivery pipe 25 is installed on the air inlet of the main air pipe 21, and the other end of the delivery pipe 25 is installed with a cold air unit 26, so that the cold air prepared by the cold air unit 26 is delivered into the main air pipe 21 through the delivery pipe 25.
[0043] In use, the fresh-keeping cold storage is combined by the composite heat preservation structure and the moisture-proof structure, the cold air prepared by the cold air unit 26 is delivered into the main air pipe 21 through the delivery pipe 25, and the cold air can flow in the air pipe network composed of the main air pipe 21 and the plurality of branch air pipes 22, the cold air is uniformly delivered into the cold storage through the plurality of first nozzles 23 and the plurality of second nozzles 24, so that the cold air moves from top to bottom in the cold storage, thereby the cooling effect of the cold air on the agricultural products in the cold storage is good, and the cold air flows to contact with the return air plate 17, and then the cold air is delivered into the return air channel through the plurality of honeycomb holes 18, and is recycled to the cold air unit 26 through the return air channel, thereby effectively reducing the loss of cold energy.
[0044] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.
[0045] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.
Claims
1. A cold storage facility for preserving agricultural products, characterized in that, include: The cold storage body structure includes a composite insulation structure and a moisture-proof structure. The composite insulation structure includes a structural protective layer, an insulation layer, and a sanitary protective layer, which are arranged sequentially from the outside to the inside. The moisture-proof structure is located at the bottom of the composite insulation structure and includes a return air plate on the top layer. The return air plate has multiple honeycomb holes arranged in an array. A cold air delivery mechanism includes a duct network installed on the top inner wall of a composite insulation structure, and multiple cold air delivery nozzles installed at the bottom of the duct network.
2. The cold storage for preserving agricultural products according to claim 1, characterized in that, The insulation layer is made of polyurethane foam, and the sanitary protection layer is made of food-grade PE anti-mildew board.
3. The cold storage for preserving agricultural products according to claim 1, characterized in that, A sealing door is installed on the side wall of the composite insulation structure, and the sealing door is an insulated door.
4. The cold storage for preserving agricultural products according to claim 1, characterized in that, The moisture-proof structure also includes a foundation base, a moisture-proof layer, and an insulation board, which are arranged sequentially from bottom to top.
5. A cold storage for preserving agricultural products according to claim 4, characterized in that, Multiple return air panels are provided, and the multiple return air panels are laid sequentially on the insulation board, and the insulation board is provided with return air channels.
6. A cold storage for preserving agricultural products according to claim 1, characterized in that, The opening ratio of the multiple honeycomb holes on the return air plate is ≥60%.
7. A cold storage for preserving agricultural products according to claim 1, characterized in that, The air duct network includes a main air duct and multiple branch air ducts. The main air duct is fixedly installed on the top inner wall of the composite insulation structure.
8. A cold storage for preserving agricultural products according to claim 7, characterized in that, The main duct is configured as a rectangular structure, and multiple branch ducts are installed at equal intervals between the ducts on both sides of the main duct.
9. A cold storage for preserving agricultural products according to claim 8, characterized in that, The cold air delivery nozzle includes a plurality of first nozzles and a plurality of second nozzles. The plurality of first nozzles are installed at equal intervals at the bottom of the main air duct, and the plurality of second nozzles are installed at equal intervals at the bottom of the branch air duct.
10. A cold storage for preserving agricultural products according to claim 9, characterized in that, The top of the composite insulation structure is equipped with a conveying pipe that runs through it. The lower end of the conveying pipe is installed on the air inlet of the main air duct, and the other end of the conveying pipe is equipped with a cooling unit.