CN212036897U - Double-microcirculation air-cooling service type refrigerated display cabinet - Google Patents

Abstract

The utility model relates to a two microcirculation air-cooled service formula refrigerated display case, the intelligent cabinet temperature adjusting device comprises a cabinet body, show storehouse and refrigerating unit, be provided with the show board in the show storehouse, be provided with client side air outlet on the show board, a serial communication port, show storehouse lateral part is provided with evaporimeter apron and postnotum, form first wind channel between evaporimeter apron and the show storehouse lateral wall, form the second wind channel between evaporimeter apron and the postnotum, form the third wind channel between show board and the show storehouse bottom, postnotum upper portion is provided with air intake and service side air outlet, service side air outlet is located the air intake below, first wind channel communicates with each other with second wind channel and third wind channel, the evaporimeter of refrigerating unit sets up on the show storehouse lateral wall and is located first wind channel, the fan sets up in evaporimeter top or below.

Description

Double-microcirculation air-cooling service type refrigerated display cabinet

Technical Field

The utility model provides a two microcirculation air-cooled service formula show cases that refrigerates belongs to refrigeration show cupboard field.

Background

The refrigerated display cabinet is mainly used for refrigerating and displaying food in markets and can play a role in keeping the cold and fresh food fresh. The showcase for refrigeration is generally classified into a direct cooling showcase and an air cooling showcase, the direct cooling showcase has low refrigeration efficiency and large temperature difference due to low dry consumption of foods, and the air cooling showcase has high refrigeration efficiency and small temperature difference due to high dry consumption of foods.

The conventional air-cooled showcase generally includes a display panel disposed at a lower portion, an air duct disposed below the display panel, an air inlet and an air outlet respectively disposed at both sides, and an evaporator and a fan disposed in the air duct. For example: chinese patents 201820260357.7 and 201821413620.8 disclose air-cooled showcases.

Display cases of this type have the following disadvantages: cold air directly flows from the air inlet to the air outlet, the flow rate of air flow formed on the surface of food is high, and the food dry consumption is high; because fan and evaporimeter setting are in show board below, lead to difficult cleanness and electrical safety low.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects, the technical problem to be solved by the utility model is to provide a double-microcirculation air-cooling service type refrigerated display cabinet.

The utility model provides a two microcirculation air-cooled service formula show cases, the intelligent cabinet temperature adjusting device comprises a cabinet body, show storehouse and refrigerating unit, be provided with the show board in the show storehouse, be provided with client side air outlet on the show board, show storehouse lateral part is provided with evaporimeter apron and postnotum, form first wind channel between evaporimeter apron and the show storehouse lateral wall, form the second wind channel between evaporimeter apron and the postnotum, form the third wind channel between show board and the show storehouse bottom, postnotum upper portion is provided with air intake and service side air outlet, service side air outlet is located the air intake below, first wind channel communicates with each other with second wind channel and third wind channel, the evaporimeter of refrigerating unit sets up on the show storehouse lateral wall and is located first wind channel, the fan sets up in evaporimeter top or below.

Furthermore, a compensation air hole is formed in the rear back plate and is located below the air outlet of the service side.

Furthermore, a blind area is arranged between the air inlet and the service side air outlet to separate the air inlet and the air outlet.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the double air outlets are arranged, so that the refrigerating distance of each air outlet is shortened by a half compared with that of the traditional single air outlet, and the temperature uniformity is correspondingly improved by more than 20%;

2. the arrangement of the double air outlets ensures that the air speed of the cold air is only 30-50% of the traditional air speed, and the lower air speed ensures that the food dry consumption speed is lower than that of the traditional air cooling structure;

3. the fan and the evaporator are arranged up and down, the blowing direction of the fan is consistent with the gravity sinking direction of the cold air, and the power of the whole fan can be reduced by about 30 percent, so that the manufacturing cost and the use cost are reduced; meanwhile, as the air inlet is formed in the top of the back plate at the service side, when the rear window is opened in service operation, the external hot air firstly contacts the airflow layer with higher temperature at the air inlet side, so that the colder airflow in the cabinet is protected, the temperature rise of food caused by service operation is effectively reduced, and the running time of the compressor is reduced.

4. The structure realizes that the lower part of the display board does not have any mechanical or electrical part, is convenient and fast to clean and has no dead angle.

5. The fan and the evaporator are arranged on the side part, so that water spraying and contact risks are avoided, and the electrical safety is improved.

6. Through setting up the evaporimeter apron, when realizing the lateral part wind channel, can further protect the evaporimeter for the evaporimeter is more hidden, increases beautifully.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is another schematic structural diagram of the present invention.

FIG. 3 is a schematic structural view of comparative example 1.

Fig. 4 is a schematic structural view of comparative example 2.

Fig. 5 is a schematic diagram of a test example.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1

As shown in fig. 1 and 2, a double-microcirculation air-cooling service type refrigerated display cabinet comprises a cabinet body 1, a display bin 2 and a refrigerating unit, a display board 3 is arranged in the display bin 2, a customer side air outlet 4 is arranged on the display board 3, an evaporator cover plate 5 and a back plate 6 are arranged on the side portion of the display bin 2, a first air duct is formed between the evaporator cover plate 5 and the side wall of the display bin 2, a second air duct is formed between the evaporator cover plate 5 and the back plate 6, a third air duct is formed between the display board 3 and the bottom of the display bin 2, an air inlet 7 and a service side air outlet 8 are arranged on the upper portion of the back plate 6, the service side air outlet 8 is located below the air inlet 7, the first air duct is communicated with the second air duct and the third air duct, an evaporator 10 of the refrigerating unit is arranged on the side wall of the display bin 2 and located in the first air duct.

Further, a compensation air hole 11 is formed in the rear back plate 6, and the compensation air hole 11 is located below the service side air outlet 8.

When the fan sets up in the evaporimeter below, can further improve evaporimeter mounting height, nevertheless will install the fan in evaporimeter apron below to when avoiding the evaporimeter defrosting, melt the water droplet on the fan.

Comparative example 1 is shown in fig. 3, and comparative example 2 is shown in fig. 4.

Test example

Cabinet type	COMPARATIVE EXAMPLE 1 (FIG. 3)	COMPARATIVE EXAMPLE 2 (FIG. 4)	Example 1 (FIG. 1)
				Cabinet length	2000mm	2000mm	2000mm
Width of cabinet	1050mm	1020mm	1050mm
				Cabinet height	1185mm	1197mm	1185mm
Width of display	800mm	795mm	800mm
				Compressor with a compressor housing having a plurality of compressor blades	SC12C	SC12C	SC12C
Condenser	L3071C	L3071C	L3071C
				Evaporator with a heat exchanger	HRJ91025	ALO220	ALO221B
Capillary tube	φ2.4×3m	φ2.4×3m	φ2.4×3m
				Condensing fan	Phi 25428-degree fan blade phi 254 flange of EBM 60W motor	Phi 25428-degree fan blade phi 254 flange of EBM 60W motor	Phi 25428-degree fan blade phi 254 flange of EBM 60W motor
Refrigerant	R22	R22	R22
				Filling amount	0.55	0.75	0.7
Demisting mode	Hot air demisting	Hot air demisting	Hot air demisting
				Defogging fan
	2*20W	2*20W	2*20W
				Defrosting mode	Electric defrosting	Wind defrosting	Electric defrosting
Power of heating wire	84W	Is free of	84W
				Temperature controller	ECS-180neo	ECS-180neo	ECS-180neo
Lighting in cabinet	LED lamp/13W 4	LED lamp/13W 4	LED lamp/13W 4
				Lamp box illumination	LED lamp/13W 2	LED lamp/13W 2	LED lamp/13W 2
Sterilizing lamp	30W*2	30W*2	30W*2
				Controller probe position	Outer side 50mm of right side end plate of evaporator	Outer side 50mm of right side end plate of evaporator	Outer side 50mm of right side end plate of evaporator
Evaporation fan	Is free of	14W*4	14W*3

Experiment one

And (3) testing environment: the method is carried out in a closed room with adjustable environment temperature and humidity, wherein the environment temperature is controlled to be 32 +/-0.5 ℃, and the humidity is controlled to be 60 +/-5%.

In comparative example 1, comparative example 2 and example 1, food and temperature collection points (shown in fig. 5, temperature collection points 31-36) were placed, respectively, and the thermometer probe was mounted approximately 5mm above the load during testing, and it was ensured that no other items around the probe prevented natural air flow from affecting the test results. And after starting up, recording the temperature of the collection point every 10min of operation, and ending after 1h of operation.

Cabinet type	Example 1	Comparative example 1	Comparative example 2
				Minimum temperature	-1.9	2.1	-3.6
Maximum temperature	0.5	6.8	-0.6
				Maximum temperature difference	2.4	4.7	3.0

After a refrigeration test of 60min, the temperature in the cabinets of the embodiment 1 and the comparative example 2 is reduced fastest, the refrigeration effect is achieved fastest, the temperature difference in the embodiment 1 is minimum, and the temperature in the cabinets is most balanced.

Experiment two

And (3) testing environment: the method is carried out in a closed room with adjustable environment temperature and humidity, wherein the environment temperature is controlled to be 32 +/-0.5 ℃, and the humidity is controlled to be 60 +/-5%.

Starting the display cabinet after the operation temperature of the display cabinet is set to be 0-4 ℃, operating the display cabinet for 24 hours, respectively placing food (duck necks) with similar weight into three display cabinets (as shown in figure 5, a tray 21 close to a customer side and a tray 22 close to a service side), taking out and weighing the food in the cabinets for 4 hours, and observing color change.

Comparing the dry consumption of three cabinet type foods, the example 1 is similar to the comparative example 1 and is obviously better than the comparative example 2.

Observing the color of the food in the two trays, the duck neck in the comparative example 2 is obviously darker, and the color change of the example 1 and the comparative example 1 is close, because the faster the cold air flows at the position of the duck neck, the faster the evaporation speed of the moisture on the surface of the duck neck is, and the moisture in the duck neck cannot be supplemented to the surface.

Claims (3)

1. The utility model provides a two microcirculation air-cooled service formula show cases, the intelligent cabinet temperature adjusting device comprises a cabinet body, show storehouse and refrigerating unit, be provided with the show board in the show storehouse, be provided with customer side air outlet on the show board, a serial communication port, show storehouse lateral part is provided with evaporimeter apron and backplate, form first wind channel between evaporimeter apron and the show storehouse lateral wall, form the second wind channel between evaporimeter apron and the backplate, form the third wind channel between show board and the show storehouse bottom, backplate upper portion is provided with air intake and service side air outlet, service side air outlet is located the air intake below, first wind channel communicates with each other with second wind channel and third wind channel, the evaporimeter of refrigerating unit sets up on the show storehouse lateral wall and is located first wind channel, the fan sets up in evaporimeter top or below.

2. The refrigerated display case of claim 1 wherein the back panel has a compensating air aperture positioned below the service side air outlet.

3. A dual microcirculation air-cooled service showcase for refrigeration of claim 1, wherein a dead space is provided between the air inlet and the service-side air outlet to separate the air inlet and the air outlet.

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