CN214172641U

CN214172641U - Cold-storage type wet air fresh-keeping storehouse

Info

Publication number: CN214172641U
Application number: CN202023342290.8U
Authority: CN
Inventors: 王达; 路坤仑; 贾连文; 李德明
Original assignee: JINAN INSTITUTE OF FRUIT PRODUCTS CHINA COOP
Current assignee: JINAN INSTITUTE OF FRUIT PRODUCTS CHINA COOP
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-10
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a fresh-keeping storehouse of cold-storage type humid air relates to the fresh-keeping technical field of fruit vegetables. The novel wet air cooler is characterized by comprising a storage body, wherein a wet air cooler is arranged in the storage body and comprises a shell, a first partition plate, a second partition plate and a third partition plate, the first partition plate, the second partition plate and the third partition plate are used for sequentially dividing the inner space of the shell into a fan installation area, a static pressure slow flow area, a filler heat exchange area and a medium recovery area from top to bottom, and through holes are uniformly distributed in the first partition plate, the second partition plate and the third partition plate. An air inlet is formed in the shell and located below the filler heat exchange area, an air outlet communicated with the fan mounting area is formed in the upper portion of the shell, and a fan is arranged at the air outlet. The filler heat exchange area is filled with filler, and the bottom of the static pressure slow flow area is provided with a spraying device. The fresh-keeping storehouse can solve the problems of water loss and periodic defrosting during the storage of the traditional refrigeration house.

Description

Cold-storage type wet air fresh-keeping storehouse

Technical Field

The utility model belongs to the technical field of the fresh-keeping technique of fruit vegetables and specifically relates to a cold-storage type humid air storehouse that keeps fresh.

Background

The constant temperature warehouse uses a cooling coil and a cold air unit, and the temperature in the warehouse is maintained through heat exchange between air and a refrigerant in the coil. Meanwhile, moisture in the air is continuously condensed on the coil pipe, and the stored products (fruits, vegetables, flowers and the like) are subjected to refrigeration for a period of time, so that the moisture loss is large, the drying shrinkage deformation is caused, the original color and luster are lost, and the quality is reduced. A separate humidifying device is therefore required for products with high humidity requirements.

The surface temperature of a cooling coil pipe in a traditional refrigeration house is lower than zero, moisture in air is continuously condensed and frosted, periodic defrosting is needed, the temperature is increased, the agricultural products can be quickly damaged if water drops on the agricultural products, the periodic defrosting energy consumption is high, the operation and maintenance cost is high, and water loss of products and periodic defrosting are the main problems faced by the traditional refrigeration house at present.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a fresh-keeping storehouse of cold accumulation type humid air, this fresh-keeping storehouse prepares humid cold air through adopting water cold-storage and indoor heat transfer device, and the problem of desiccation and periodic defrosting when solving traditional freezer and preserving.

The utility model provides a technical scheme that its technical problem adopted is:

a cold storage type humid air fresh-keeping storehouse comprises a storehouse body, wherein a humid air cooler is arranged in the storehouse body, the humid air cooler comprises a shell, a first partition plate, a second partition plate and a third partition plate, the first partition plate, the second partition plate and the third partition plate divide the inner space of the shell into a fan installation area, a static pressure slow flow area, a filler heat exchange area and a medium recovery area from top to bottom in sequence, and through holes are uniformly distributed in the first partition plate, the second partition plate and the third partition plate;

an air inlet is formed in the shell and is positioned below the filler heat exchange area, an air outlet communicated with the fan mounting area is formed in the upper portion of the shell, and a fan is arranged at the air outlet;

the filler heat exchange area is filled with filler, and the bottom of the static pressure slow flow area is provided with a spraying device.

Further, the outside of the storehouse body is provided with cold storage pond and refrigerating unit, the upper portion in cold storage pond is provided with hot water and advances pipe and hot water exit tube, the lower part in cold storage pond is provided with cold water and advances pipe and cold water exit tube, the hot water advance the pipe through first pipeline with the medium recovery district link to each other, hot water exit tube and cold water advance the pipe respectively through second pipeline and third pipeline with refrigerating unit's import and export link to each other, the cold water exit tube pass through the fourth pipeline with spray set link to each other, first pipeline, second pipeline, third pipeline and fourth pipeline on all be provided with control valve, the fourth pipeline on be provided with the circulating pump.

Further, the cold-storage pond in be provided with the liquid distributor, the liquid distributor include the trunk line, the middle part of trunk line is provided with the collector tube that extends to the inboard along vertical direction, the collector tube on be provided with a plurality of liquid separating pipes along the circumferencial direction equipartition, and be a plurality of liquid separating pipe be radial arrangement, liquid separating pipe on be provided with a plurality of liquid outlets along the axis direction equipartition.

Further, the liquid outlet on be provided with the drain pipe, the drain pipe include the connecting portion that are connected with the liquid outlet, the free end of connecting portion is provided with the head that is hollow bowl form structure, the edge of head is provided with a plurality of cloth liquid holes, and is a plurality of cloth liquid hole along the circumferencial direction equipartition.

Further, the diameter of the liquid distribution pipe is gradually reduced from the inside to the outside.

Furthermore, the cold storage pool is buried and underground.

Furthermore, the filler heat exchange area is provided with three layers of fillers, and the structure of the filler positioned in the middle is different from the structure of the upper layer of filler and the lower layer of filler.

Further, the height of the static pressure slow flow region is 400-800 mm.

The utility model has the advantages that:

1. the device adopts humid air cooler to carry out hot humid processing to the air for humid air's relative humidity is more than 98%, can effectively avoid the product to lose water the phenomenon, and storehouse agricultural product moisture loss can keep fresh and reduce about 70% than traditional freezer.

2. The device adopts spray set and air to carry out heat and moisture exchange in the freezer, and the frosting phenomenon does not have, and through the ingenious setting of static pressure case, realizes the aqueous vapor separation in the air, has avoided the problem of water droplet product surface pollution in the air, and humid air cooler can realize the heat transfer of little difference in temperature, avoids the product frostbite phenomenon.

3. The device adopts the cold-storage type cooling device, the energy of the refrigerating unit is stored to balance the load fluctuation of the refrigeration house, for example, the high load moment when the refrigeration house is put in storage can fully utilize the cold quantity stored in the cold-storage house to rapidly cool the air in the refrigeration house, the configuration of the refrigerating unit can be reduced by more than 30 percent compared with that of the common refrigeration house, and the novel refrigeration house does not need to be provided with a refrigerant coil pipe, thereby reducing the capital construction resources and realizing the purpose of saving the initial investment.

4. The novel refrigeration house can fully utilize energy-saving cold accumulation modes such as peak-valley electricity, cold quantity recovery, seasonal cold accumulation and the like, and can realize the comprehensive utilization of the energy of the device.

Drawings

FIG. 1 is a schematic diagram of the preservation warehouse;

FIG. 2 is a schematic structural diagram of a fresh-keeping warehouse;

fig. 3 is a schematic structural view of a cold storage pool;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic perspective view of the drain pipe;

FIG. 6 is a top view of the drain tube;

FIG. 7 is a sectional view taken along line A-A of FIG. 6;

fig. 8 is a schematic view of a distribution structure of liquid distribution pipes.

In the figure: 11-shell, 111-air inlet, 12-fan mounting area, 13-static pressure slow flow area, 131-spraying device, 14-filler heat exchange area, 15-medium recovery area, 16-fan,

2-cold storage pool, 211-main pipe, 212-liquid collecting pipe, 213-liquid distributing pipe, 214-liquid outlet pipe, 2141-connecting part, 2142-head part, 2143-liquid distributing hole, 22-hot water inlet pipe, 23-hot water outlet pipe, 24-cold water inlet pipe, 25-cold water outlet pipe,

3-a refrigerating unit, wherein the refrigerating unit comprises a refrigerating unit,

41-a first line, 42-a second line, 43-a third line, 44-a fourth line,

5-controlling the valve to open the valve,

6-a circulating pump is arranged in the device,

7-library body.

Detailed Description

Implement method

As shown in fig. 1, the cold storage type humid air fresh-keeping storage comprises a storage body 7 and a humid air cooler arranged in the storage body 7, wherein a cold storage pool 2 and a refrigerating unit 3 are arranged outside the storage body 7.

As shown in fig. 2, the wet air cooler includes a housing 11, a first partition plate, a second partition plate and a third partition plate are sequentially arranged in the housing 11 from top to bottom, the first partition plate, the second partition plate and the third partition plate divide an inner space of the housing 11 from top to bottom into a fan installation area 12, a static pressure slow flow area 13, a filler heat exchange area 14 and a medium recovery area 15, and the height of the static pressure slow flow area 13 is 400-800 mm. And the first partition plate, the second partition plate and the third partition plate are uniformly provided with through holes for allowing air flow and water flow to pass through. As a specific implementation manner, the first partition plate, the second partition plate, and the third partition plate in this embodiment are all made of sieve plates.

The housing 11 is provided with an air inlet 111 and an air outlet, wherein the air inlet 111 is communicated with the medium recovery area 15, the air inlet 111 is located at the upper part of the medium recovery area 15, the air outlet is communicated with the fan mounting area 12, the air outlet is provided with a fan 16, air in the fresh-keeping warehouse enters the wet air cooler from the air inlet 111 under the driving of the fan 16, and is discharged from the air outlet of the fan 16 after heat and humidity exchange.

Preferably, the air inlet 111 and the air outlet are both disposed on the inner side wall of the housing 11 (the side facing the inner side of the fresh food storage compartment is the inner side).

The filler heat exchange area 14 is filled with filler.

The bottom of the static pressure slow flow region 13 is provided with a spraying device 131, and the inlet of the spraying device 131 sequentially penetrates through the shell 11 and the side wall of the storehouse body 7 to extend to the outside of the storehouse body 7.

The bottom of the medium recovery area 15 is provided with a liquid return pipe, and the outer end of the liquid return pipe sequentially penetrates through the side walls of the shell 11 and the storehouse body 7 to extend to the outside of the storehouse body 7.

As shown in fig. 3, liquid distributors are arranged in the cold storage tank 2 at the upper part and the lower part of the cold storage tank 2, and the two liquid distributors are symmetrically arranged. As shown in fig. 3 and 8, the liquid distributor includes a main pipe 211 radially penetrating the cold storage tank 2, a liquid collecting pipe 212 extending inward in a vertical direction is disposed in the middle of the main pipe 211, and an axis of the liquid collecting pipe 212 coincides with a central assembly of the cold storage tank 2. The liquid collecting pipe 212 is uniformly provided with a plurality of liquid distributing pipes 213 along the circumferential direction, and the plurality of liquid distributing pipes 213 are radially arranged. The outer end of the liquid separating pipe 213 is a blind end, and the inner end of the liquid separating pipe 213 is communicated with the liquid collecting pipe 212. Divide liquid pipe 213 on be provided with a plurality of openings towards inboard liquid outlet along the axis direction equipartition, just the axis of liquid outlet is vertical state.

The upper portion of cold-storage pond 2 is provided with hot water and advances pipe 22 and hot water exit tube 23, the lower part of cold-storage pond 2 is provided with cold water and advances pipe 24 and cold water exit tube 25, and the both ends of the trunk line 211 that is located the cloth ware on upper portion are advanced pipe 22 and hot water exit tube 23 with hot water respectively and are linked to each other, and the both ends of the trunk line 211 that is located the cloth ware on lower portion are advanced pipe 24 and cold water exit tube 25 with cold water respectively and are linked to each other.

As shown in fig. 1, the hot water inlet pipe 22 is connected to the liquid return pipe through a first pipeline 41, the hot water outlet pipe 23 is connected to an inlet of the refrigeration unit 3 through a second pipeline 42, the cold water inlet pipe 24 is connected to an outlet of the refrigeration unit 3 through a third pipeline 43, and the cold water outlet pipe 25 is connected to an inlet of the spray device 131 through a fourth pipeline 44. The first pipeline 41, the second pipeline 42, the third pipeline 43 and the fourth pipeline 44 are all provided with control valves 5, and the fourth pipeline 44 is provided with a circulating pump 6 for pumping liquid into the spraying device 131.

In operation, under the driving of the fan 16, air in the warehouse enters the humid air cooler through the air inlet 111, cold water sprayed from the spraying device 131 performs sufficient heat and humidity exchange in the filler heat exchange area 14, and the filler heat exchange area 14 functions to increase the heat exchange area and the heat exchange time of the water and the air. After sufficient heat and moisture exchange, small temperature difference heat exchange can be realized, and air is changed into humid air with the temperature of about 1-2 ℃ and the relative humidity of about 98%. At the moment, a certain amount of water drops are carried in the air, and if the water drops are not treated, the water drops can pass through the fan 16 to the surfaces of the fruits and vegetables in the refrigeration house, so that the fruits and vegetables are rotten. Therefore, the static pressure slow flow region 13 is provided, which is used for slowing down the flow velocity of the air, because the channel cross section area in the filler heat exchange region 14 is small, under the condition of a certain flow rate, the average flow velocity of the air is large, the cross section area is suddenly increased after the air enters the static pressure slow flow region 13, the average flow velocity of the air is rapidly reduced, and at the moment, water drops carried in the air are separated from the air due to the action of gravity.

When the cold storage pool 2 is used for cold storage, water in the cold storage pool 2 flows out from the hot water outlet pipe 23 and enters the refrigerating unit 3, and cold water cooled by the refrigerating unit 3 is introduced into the cold storage pool 2 from the bottom through the cold water inlet pipe 24. When the cold storage tank 2 is used for cold discharge, water in the cold storage tank 2 flows out from the cold water outlet pipe 25 and enters the spraying device 131, and after heat exchange, the water is left in the medium recovery area 15 and finally returns to the cold storage tank 2 through the hot water inlet.

Further, in order to improve the heat exchange effect of the filler heat exchange area 14, as shown in fig. 2, the filler heat exchange area 14 described in this embodiment is provided with three layers of fillers, and the three layers of fillers are arranged in a staggered manner, and the structure of the filler located in the middle is different from the structure of the upper and lower layers of fillers, so that the disturbance and the water flow distribution effect can be increased.

Further, in order to improve the uniformity of the liquid distribution of the liquid distributor, as shown in fig. 4, a liquid outlet pipe 214 is disposed on the liquid outlet of the liquid distribution pipe 213, as shown in fig. 5, 6 and 7, the liquid outlet pipe 214 includes a connecting portion 2141 connected to the liquid outlet, and preferably, the connecting portion 2141 is connected to the liquid outlet in a threaded manner. The upper end of the connecting portion 2141 is provided with a head portion 2142 having a hollow bowl-shaped structure, the inner space of the head portion 2142 is communicated with the liquid outlet through the connecting portion 2141, a plurality of liquid distribution holes 2143 communicated with the hollow inner space of the head portion 2142 are arranged at the edge of the head portion 2142, and the liquid distribution holes 2143 are uniformly distributed along the circumferential direction.

Further, the diameter of the liquid distribution pipe 213 is gradually reduced from the inside to the outside, so that the velocity of each outflow opening is ensured to be uniform.

Furthermore, the cold storage pool 2 is buried and underground.

Example two

The moist air cooler comprises a flat plate, and the flat plate and the side wall of the storage body 7 together form a shell 11 for accommodating the internal structure of the moist air cooler, and the rest of the structure is similar to the embodiment.

Claims

1. The utility model provides a cold-storage type humid air fresh-keeping storehouse, includes the storehouse body, its characterized in that: the wet air cooler is arranged in the warehouse body and comprises a shell, a first partition plate, a second partition plate and a third partition plate, the first partition plate, the second partition plate and the third partition plate divide the inner space of the shell into a fan installation area, a static pressure slow flow area, a filler heat exchange area and a medium recovery area from top to bottom in sequence, and through holes are uniformly distributed in the first partition plate, the second partition plate and the third partition plate;

2. The cold storage type humid air fresh-keeping warehouse according to claim 1, characterized in that: the outside of the storehouse body is provided with cold-storage pond and refrigerating unit, the upper portion in cold-storage pond is provided with hot water and advances pipe and hot water exit tube, the lower part in cold-storage pond is provided with cold water and advances pipe and cold water exit tube, hot water advance the pipe through first pipeline with the medium recovery district link to each other, hot water exit tube and cold water advance the pipe respectively through second pipeline and third pipeline with refrigerating unit's import and export link to each other, the cold water exit tube pass through the fourth pipeline with spray set link to each other, first pipeline, second pipeline, third pipeline and fourth pipeline on all be provided with control flap, the fourth pipeline on be provided with the circulating pump.

3. The cold storage type humid air fresh-keeping warehouse according to claim 2, characterized in that: cold-storage pond in be provided with the liquid distributor, the liquid distributor include the trunk line, the middle part of trunk line is provided with the collector tube that extends to the inboard along vertical direction, the collector tube on be provided with a plurality of liquid separation pipes along the circumferencial direction equipartition, and a plurality of the liquid separation pipe be radial arrangement, the liquid separation pipe on be provided with a plurality of liquid outlets along the axis direction equipartition.

4. The cold storage type humid air fresh-keeping warehouse according to claim 3, characterized in that: the liquid outlet on be provided with the drain pipe, the drain pipe include the connecting portion that are connected with the liquid outlet, the free end of connecting portion is provided with the head that is hollow bowl form structure, the edge of head is provided with a plurality of cloth liquid holes, and is a plurality of cloth liquid hole along the circumferencial direction equipartition.

5. The cold storage type humid air fresh-keeping warehouse according to claim 3, characterized in that: the diameter of the liquid distribution pipe is gradually reduced from the inside to the outside.

6. The cold storage type humid air fresh-keeping warehouse according to claim 3, characterized in that: the cold storage pool is buried underground.

7. The cold storage type humid air fresh-keeping warehouse according to claim 1, characterized in that: the filler heat exchange area is provided with three layers of fillers, and the structure of the filler positioned in the middle is different from the structure of the upper layer of filler and the lower layer of filler.

8. The cold storage type humid air fresh-keeping warehouse according to claim 1, characterized in that: the height of the static pressure slow flow region is 400-800 mm.