JPH0331200Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention distributes cooling air or heated air uniformly between the upper and lower parts of the processing chamber where food is subjected to cooling or heating processing. The present invention relates to a heating or cooling processing device that can make the temperature distribution inside the processing chamber uniform.

(Conventional Example) Conventionally, in the final step of manufacturing frozen desserts, as shown in FIG. 3, food is placed on a conveying device 8 provided in a processing chamber 1 and transferred indoors for cooling.

A cooling air supply chamber 13 partitioned by a partition wall 2 is formed at one end of the processing chamber 1, and a cooler 6 is connected to a cold air intake 15 opened in the ceiling wall of the air supply chamber.
1. A cold air supply duct 64 of the cooling unit 6 composed of an eliminator 62 and a blower 63 is connected.

A plurality of through windows 20 arranged in the vertical and horizontal directions are opened in the partition wall 2, and a fan 3 is installed in each window 20.

A discharge port 16 is provided in the ceiling wall at the other end of the processing chamber 1, and a suction duct 65 of the cooling unit 6 is connected to the discharge port.

Cold air sent into the supply chamber 13 from the supply duct 64 is supplied to the processing chamber 1 by the fan 3, discharged from the discharge port 16, cooled again by the cooler 61, and returned to the supply chamber 13, where it is processed. It circulates between the chamber 1 and the cooling unit 6.

(Problem to be Solved) The distribution state of the cooling air in the supply chamber 13 becomes thinner as the distance from the intake port increases.

The fans 3 in the supply chamber have the same capacity and are arranged vertically and horizontally.
Since the cold air near the fan 3 located far from the fan 3 is thin, the amount of cold air supplied indoors from the lower fan is smaller than the amount of cool air supplied indoors from the upper fan.

Moreover, since the cold air in the room is drawn toward the exhaust port as it goes toward the exhaust side, the cold air supplied into the room from the lower fan 3 flows toward the exhaust side while rising.

Therefore, the flow distribution state of the cold air in the room is not uniform, and the temperature rises slowly in areas where a large amount of cold air flows, and the temperature rises rapidly in areas where a small amount of cold air flows.

Therefore, the temperature distribution within the processing chamber 1 is also not uniform.

It is desirable to cool frozen desserts at a constant temperature, and there has been a long-awaited need for an apparatus that can maintain a uniform temperature distribution within the processing chamber 1.

(Means for solving the problem) The present invention provides a ventilation plate with a large number of through holes on the upstream side of the fan and on the discharge side of the processing chamber, and adjusts the ventilation capacity of the ventilation plate to the cold air intake. , revealed a device that can uniformly distribute the cold air in the processing chamber and minimize temperature differences by reducing the amount of cold air as it approaches the outlet, allowing food to be cooled and processed in ideal conditions. It is meant to be.

In the device of the present invention, a first ventilation plate 4 is provided on the upstream side of the partition wall 2, and the interior of the air supply chamber 13 is divided into two in the front and back to form a first supply chamber 11 and a second supply chamber 12. , a heating or cooling air intake 15 is provided in the first supply chamber 111, a second ventilation plate 5 is provided on the air discharge side of the processing chamber 1 facing the partition wall 2, and a second ventilation plate 5 is provided on the downstream side of the plate 5. A discharge chamber 14 is formed in the discharge chamber 1.
4 is provided with a discharge port 16. The second ventilation plate 5 and the first
A large number of through holes 51, 41 are formed in the ventilation plate 4, and each ventilation plate is formed such that the closer the intake port and the discharge port are to the ventilation plate, the smaller the permissible amount of ventilation becomes.

(Operation and Effect) The cold air supplied to the first supply chamber 11 is
through the through hole 41 of the first ventilation plate 4.
It is sucked into the supply chamber 12 and further sent into the processing chamber 1.

The distribution state of cold air in the first supply chamber 11 is the intake port 1.
The first ventilation plate 4 is formed so that the ventilation capacity decreases as it approaches the intake port 15, so that the same amount of cold air per unit time is drawn from each fan 3. can be sent to the cooling room.

In the discharge chamber 14, the closer to the discharge port 16 the stronger the suction force acts, but the second ventilation plate 5 that partitions the processing chamber 1 and the discharge chamber 14 is designed such that the further away from the discharge port 16 the greater the permissible ventilation amount. As a result, it is possible to draw in almost the same amount of indoor cool air from each through hole.

Therefore, the flow of cold air in the machining chamber 1 is not dense in the upper layer and rough in the lower layer on the discharge side as in the conventional case, but the cold air is distributed almost uniformly in the machining chamber 1 and flows toward the discharge side. flow, which also makes the temperature distribution within the processing chamber 1 uniform.

Incidentally, if a heating unit 6 is connected in place of the cooling unit 6, heated air can be supplied to the processing chamber 1 to heat-process the food.

(Example) Fig. 1 shows a cooling processing device for cooling ice cream dough contained in a cup, and in Fig. 1, cold air flows from the left side to the right side in the processing chamber.

A cooling unit 6 is installed above the processing chamber 1,
The cooling unit 6 includes a cooler 61 and an eliminator 6.
2 and a blower 63.

A partition wall 2 is provided at one end of the processing chamber 1 to form a cold air supply chamber 13.
A total of 16 through windows 20, 4 each in the horizontal direction
and install fan 3 to each through window.

A first ventilation plate 4 with a large number of through holes 41 is provided on the upstream side of the partition wall 2, and the cold air supply chambers 13 are divided into a first supply chamber 11 far from the cold air discharge side and a second supply chamber 12 close to the discharge side. divide

A cold air intake 15 is provided in the ceiling wall of the first supply chamber 11, and a cold air supply duct 64 of the cooling unit 6 is connected to the intake 15.

The through holes 41 of the first ventilation plate 4 are arranged regularly in the vertical and horizontal directions, and the hole diameter increases in order from the upper through hole 41a to the lower through hole 41b.

A second ventilation plate 5 is disposed on the discharge side of the processing chamber 1, facing the partition wall 2, and a discharge chamber 14 is formed on the downstream side of the second ventilation plate 5.

A discharge port 16 is provided in the ceiling wall of the discharge chamber 14, and a suction duct 65 of the cooling unit 6 is connected to the discharge port.

Like the first ventilation plate 4, the second ventilation plate 5 has a large number of through holes 5 regularly arranged in the vertical and horizontal directions.
1 is opened, and the hole diameter increases in order from the upper through hole 51a to the lower through hole 51b.

In the processing chamber 1, there is a known multi-stage endless conveyor device 8.
is in place.

The multistage endless conveyance device 8 has the same number of sprockets 81 disposed in multiple stages at equal intervals in each of the four corners of the processing chamber 1, and a rising conveyance section 82a of a conveyance body 82 that ascends in a spiral manner guided by the sprockets. and a descending conveyor 82b that descends in a spiral manner guided by a sprocket are connected in series at the rising end and the descending end, respectively, and a supply conveyor (not shown) is connected adjacent to the transition path at the bottom of the ascending conveyor 82a. A discharge conveyor (not shown) is disposed adjacent to the transition path at the bottom of the descending conveyance section 82b.

The cold air supplied from the cooling unit 6 to the first supply chamber 11 is sucked into the second supply chamber 12 by the fan 3 through the through hole 41 of the first ventilation plate 4, and is further sent into the processing chamber 1.

In the first supply chamber 12, even if the cold air becomes thinner the further away from the intake port 15, the through hole 41 of the first ventilation plate 4 is formed to have a small diameter on the intake port 15 side, so that the cold air flows away from the intake port 15. Since each fan 3 is formed to have such a large diameter, it becomes possible to send the same amount of cold air into the processing chamber 1 per unit time.

In the discharge chamber 14, the closer the discharge port 16 is, the stronger the suction force acts, but the through hole 51 of the second ventilation plate 5 that partitions the processing chamber 1 and the discharge chamber 14 is larger than the through hole 51b located far from the discharge port 16. Since the through hole 51a located close to the discharge port is opened in a small diameter,
As a result, approximately the same amount of indoor cool air is sucked into the discharge chamber 14 from each through hole 51.

Therefore, the cold air is distributed almost uniformly in the processing chamber 1 and flows toward the discharge side, thereby making the temperature distribution within the processing chamber 1 uniform, and allowing the food to be cooled in an ideal state.

In the embodiment, the through holes 41, 51 of the ventilation plates 4, 5
By changing the size of the through-holes, the permissible amount of ventilation was formed so that it decreased as it approached the inlet and outlet, but it is possible to achieve the same effect as described above by changing the distribution density of through-holes of the same diameter. Of course it can be done.

The present invention is not limited to the configuration of the above-described embodiments, and various modifications can be made within the scope of the claims for utility model registration.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the apparatus, FIG. 2 is a schematic oblique view of a processing chamber, and FIG. 3 is a longitudinal sectional view of a conventional cooling processing apparatus. 1... Processing room, 11... First supply room, 12...
2nd supply room, 2... Partition wall, 3... Fan, 4
...First ventilation plate, 41...Through hole, 5...Second ventilation plate, 51...Through hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A partition wall 2 is provided at one end of the processing chamber 1 to form an air supply chamber 13, and a plurality of through windows are formed in the partition wall 2 in parallel in the vertical and horizontal directions. A fan 3 is attached to the air supply chamber 13, and the heated air or cooling air supplied to the air supply chamber 13 is sent to the other end of the processing chamber 1 by the fan 3 and discharged from the other end of the chamber, and the discharged air is heated or cooled again. death,
In a heating or cooling processing device that feeds the air into the supply chamber 13 and circulates it, a first ventilation plate 4 is provided on the upstream side of the partition wall 2 to divide the air supply chamber 13 into two, the first supply chamber 11 and the front. A second supply chamber 12 is formed, a heating or cooling air intake 15 is provided in the first supply chamber 11, and a second ventilation plate 5 is provided on the air discharge side of the processing chamber 1 facing the partition wall 2. A discharge chamber 14 is formed on the downstream side of the plate, a discharge port 16 is provided in the discharge chamber 14, and a large number of through holes 51, 41 are opened in the second ventilation plate 5 and the first ventilation plate 4, and each A heating or cooling processing device characterized in that the ventilation plates 4 and 5 are formed such that the permissible amount of ventilation is smaller at positions closer to the intake port and discharge port than at positions farther from the intake port and the discharge port, respectively. . Through holes 4 in the first ventilation plate 4 and the second ventilation plate 5
Reference numerals 1 and 51 denote the heating or cooling processing apparatus according to claim 1, which is formed to have a small diameter at positions near the intake port and the discharge port. Through holes 4 in the first ventilation plate 4 and the second ventilation plate 5
Reference numerals 1 and 51 refer to the heating or cooling processing apparatus according to claim 1, in which the distribution density of holes is coarse at positions near the intake port and the discharge port.