JPS5925198Y2 - Air switching damper mechanism for thawing warehouse - Google Patents

Description

[Detailed description of the invention] This invention aims to eliminate uneven thawing and improve thawing efficiency in an air circulation type thawing chamber for thawing frozen foods such as fish and meat. This invention relates to an air switching damper mechanism for a thawing warehouse configured to be reversed.

Generally, meat and the like are frozen at ultra-low temperatures to maintain freshness, and are thawed appropriately during the distribution process from retail stores to consumers.

However, with conventional thawing operations, it is difficult to maintain the freshness and taste of meat, which is a major problem.

That is, drips such as meat juice seep out from the meat during thawing, causing loss of weight, discoloration, and fading, which significantly reduces the commercial value.

In addition, the air circulation type has the disadvantage that the thawing temperature, humidity, or thawing speed within the thawing chamber varies in distribution and is not constant, resulting in uneven thawing, and this tendency becomes more pronounced as the size becomes larger.

This idea was made in order to solve the above-mentioned conventional drawbacks, and in an air circulation type thawing warehouse where a continuous air flow path is forced to circulate inside the thawing chamber containing the items to be thawed, An air switching damper mechanism for thawing warehouses is designed to make it easier to operate the damper of the reversing box, which incorporates a set of dampers on the side that reverses the direction of the circulating air, eliminates uneven thawing, and improves thawing efficiency. This is what we provide.

Hereinafter, one embodiment of this invention will be described in detail based on the attached drawings.

FIG. 1 is a schematic diagram showing the entire structure of a defrosting machine using the air switching damper mechanism according to this invention, and FIG. 2 is an explanatory diagram showing the main parts thereof.

Reference numeral 1 denotes a thawing chamber whose surroundings have heat insulation performance, and on one end thereof, a thawing machine 2, a damper chamber 3, and a wind direction adjustment chamber 4 are installed, and various controls are performed by an operation panel 5.

The thawing chamber 1 is provided with a partition wall 6 in the longitudinal direction, through which circulating air blown through the damper chamber 3 and the wind direction adjustment chamber 4 flows.

In addition, an opening/closing door 7 is installed on the other end or side surface of the thawing chamber 1, and multiple shelves for storing items to be thawed are provided, and carts 83 to 8n with open both sides are installed on the left and right sides of the partition wall 6. It is now possible to accommodate a large number of them.

Therefore, the circulating air sent from the wind direction adjustment chamber 4 is introduced from one side of the partition wall 6, circulates between the carts 8a to 8n, and returns to the wind direction adjustment chamber 4 from the other side. , the items to be thawed on the shelves of the carts 8a to 8n are thawed uniformly.

As shown in FIG. 2, the damper chamber 3 and the wind direction adjustment chamber 4 are divided into two by a partition wall 10 in the longitudinal direction, and the thawing chamber 1 and the adjacent wind direction adjustment chamber 4 and damper chamber 3 are divided into two by a partition wall 10. A rectifying grill 11 is provided between the wind direction adjustment chamber 4 and the thawing chamber 1.
is installed.

Further, the damper chamber 3 is provided with a blowing section 3 by a partition wall 12.
The supply duct 13 is divided into upper and lower halves into a suction part 3a and a suction part 3b, and a supply duct 13 for blowing air through a perforated tower (not shown) is installed in the blow-off part 3a, and a discharge duct 14 is installed in the suction part 3b.

The partition wall 10 that divides the damper chamber 3 and the wind direction adjustment chamber 4 into two in the longitudinal direction has openings 15 al and 15 located at the blow-off section 3 a and the suction section 3 b of the damper chamber 3, respectively.
b is provided, and openings 17a, 17b, and 18a, 18b are formed in the partition wall 16 between the damper chamber 3 and the wind direction adjustment chamber 4 at the upper and lower sides partitioned by the partition wall 12, respectively.

Further, on the side of the blow-out section 3a in the damper chamber 3, an opening 15a of the partition wall 10 and an opening 17 at the upper part of the partition wall 16 are provided.
A damper 193 that opens and closes the damper shaft 20 as appropriate.
A damper 1 is rotatably mounted on the suction part 3b side of the damper chamber and opens and closes the opening 15b of the partition wall 10 and the opening 18b of the lower part of the partition wall 16 as appropriate.
9b is rotatably mounted on a damper shaft 20b.

As shown in FIG. 3, gears 21 a and 21 b that mesh with each other are fixed to the upper parts of the damper shafts 20 a and 20 b, and one of the gears is rotated or reversed via a chain 22 by a drive source (not shown). By this, damper 1
9a.

The rotation of 19b is controlled.

Although the gears 21a and 21b are connected to the drive source by the chain 22, they may also be connected to the drive source via a rack.

Further, in the figure, the openings 17b and 18a are always kept open.

Next, the operation of the decompressor switching damper mechanism configured as described above will be specifically explained in detail based on FIGS. 4 and 5.

First, the carts 8a to 8 in which the items to be thawed are stored in the thawing warehouse 1.
n is accommodated and thawing is started by operating the operation panel 5, the thawing machine 2 is driven and circulating air controlled to a predetermined temperature and humidity is supplied from the supply duct 13 into the blow-off section 3a of the damper chamber 3. Air is blown to

At this time, the damper shafts 20a and 20b rotate so that the damper 19a closes the opening 15a of the partition wall 10, and the damper 19b closes the opening 15b of the partition wall 10.

Therefore, the circulating air passes through the opening 17a, passes through the rectifying grill 11 of the wind direction adjustment chamber 4, and is introduced into one side of the partition wall 6 of the thawing warehouse 10.

The circulating air introduced into the thawing chamber 1 passes through the items to be thawed in the trolleys 8a to 8n, passes through the thawing chamber on the opposite side from the ventilation turning section, returns to the wind direction adjustment chamber 4, and is transferred to the damper chamber 3 through the opening 18b. It returns to the suction part 3b and is sucked into the thawing machine 2 through the discharge duct 14.

When the above one-way ventilation is unloaded for a certain period of time, the thawing warehouse 1
Since there will be a difference in the degree of thawing on the left and right sides of the inner partition wall 6, the dampers 191 and 19b will be
The switch is made to reverse the flow path of the circulating air.

That is, after a certain period of time has passed, the damper shafts 20a, 20
b is rotated, the damper 192 leaves the opening 15a of the partition wall 10 and closes the opening 17a of the partition wall 16, and the damper 19b leaves the opening 15b and closes the opening 18b of the partition wall 16. Therefore, the circulating air blown from the supply duct 13 into the blow-off section 3a of the damper chamber 3 is introduced into the thawing chamber 1 from the rectifying grill 11 via the openings 15a and 18a.

The circulating air returned from the thawing chamber 1 returns to the suction section 3b through the opening 17b, the opening 15b, and the discharge duct 14.
It is circulated from the decompressor 2 into the thawing machine 2.

Note that the damper switching mechanism according to this invention allows the supply duct 13 and the discharge duct 14 to be installed in opposite positions depending on the installation position of the thawing machine 1.
The damper mechanism can operate in a similar manner.

As explained in detail above, the air switching damper mechanism for a thawing store according to this invention has a simple structure, and the temperature, humidity, time, and ventilation direction of the thawing atmosphere in the thawing store can be arbitrarily set and controlled. , the product to be thawed can be thawed evenly and uniformly in large quantities, and the thawing time can be greatly shortened.

In addition, by detecting the difference in the thawing atmosphere on the left and right side of the partition wall in the thawing chamber or by switching the damper using a timer, etc., it is possible to automatically reverse the wind direction, improving thawing efficiency and thermal efficiency. It also has practical effects such as fewer breakdowns and easier maintenance.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing the defrosting chamber according to this invention, Fig. 2 is an explanatory diagram of the main parts according to this invention, Fig. 3 is a side view showing the main parts of the damper shaft according to this invention, and Fig. 4 5 through 5 are explanatory diagrams showing the flow of circulating air according to this invention. 1... Thawing chamber, 2... Thawing machine, 3... Damper room, 3a... Blower part, 3b... Suction part, 4... Wind direction adjustment room, 5... Operation panel, 6... Partition wall, 8a-8
n... Trolley, 10... Partition wall, 11... Rectifier grill, 12... Partition wall, 13... Supply duct, 14...
...Exhaust duct, 15a, 15b...Opening, 16-
...Partition wall, 17 a, 17 b, 18 a, 18
b-...Opening, 19a, 19b...Damper, 20a, 20b...Damper shaft.

Claims (1)

[Scope of utility model registration request] A wind direction adjustment room and a damper room are placed adjacent to a thawing chamber partitioned by a partition wall in the longitudinal direction, and the damper room is divided into upper and lower halves by a partition wall into a blowout part and a suction part, and the partition wall and the wind direction adjustment room are Divided into left and right by a partition wall corresponding to the partition wall of the thawing chamber, a partition wall is provided between the damper chamber and the wind direction adjustment chamber, and openings are provided above and below in the partition wall of the damper room and the partition wall, respectively. , further comprising a damper for opening and closing one of the opening provided in the partition wall of the blowing section and the opening provided in the partition wall, and one of the opening provided in the partition wall of the suction section and the opening provided in the partition wall. With a damper that opens and closes, each damper of the blowing part and the suction part can be operated simultaneously to open and close the opening of each wind direction adjustment chamber or the opening of the partition wall, so that the wind direction of the circulating air can be changed. An air switching damper mechanism for defrosting warehouses featuring: