JP2001231736A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas booster whose heat efficiency is higher than that of a conventional gas booster, and to provid a dishwasher without needing the formation of a notch for an exhaust cylinder at the back guard of a table by integrating the gas booster to a dishwasher main body, thereby eliminating the connecting construction of the gas booster at an installing site. SOLUTION: A gas, booster device 25 for feeding the rinsing hot water at a prescribed temperature to a rinsing hot water tank provided in the dishwasher main body 20 is fitted directly to the side surface of the main body 20. The exhaust path 36 for discharging the exhaustion of the device 25 is provided along the back surface of the main body 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher using hot rinse water generated by a gas booster device.

[0002]

2. Description of the Related Art Generally, a dishwasher widely used in a family restaurant or the like has a dishwasher main body 1 located at a center and a right table 2 at right and left sides as shown in FIGS. It is configured by connecting the left table 3. The left and right right tables 2 and left tables 3 each have a standard height of 80 cm, and have rack sliding flat portions 4, 5 formed on the upper surfaces thereof. Also, on the back of the right table 2 and the left table 3, a wall 6
Back guards 7, 8 each having a predetermined distance of, for example, 15 cm in height are formed integrally with each other to prevent water from spilling on the floor surface. These back guards 7 and 8 are connected to the right table 2 and the left table 3.
And also covers the lower surface. Next, a gas booster 9 is installed on the side of the dishwasher main body 1, for example, below the right table 2. The gas booster 9 includes a water storage tank 11 connected to a rinsing water pump (not shown) provided in the dishwasher main body 1 by a connection pipe 10.
A gas burner 12 is provided below the water storage tank 11 to form a heat exchanger 13 as a whole. A booster exhaust tube 14 is formed through the center of the heat exchanger 13, and an L-shaped bent exhaust tube 15 is continuously provided above the booster exhaust tube 14. That is, the exhaust pipe 15 has a hole 16 on its lower surface into which the booster exhaust pipe 14 is fitted, and the upper end of the vertical portion is open upward. An exhaust pipe notch 17 is formed in the right back guard 7 so that the exhaust pipe 15 penetrates. A is an exhaust hood provided above.

In such a configuration, a dirty tableware 18 is used.
Is placed on the rack sliding plane portion 4 of the right table 2 and is moved to the left to slide into the dishwasher main body 1. The rack 19 is a square rack of 50 cm square, which has become a standard worldwide standard. And
When the door of the dishwasher main body 1 is closed, the dishwasher main body 1 is closed.
In the process, the process of washing (45 seconds) → rinsing (12 seconds) is automatically performed, and one cycle of washing is completed. When one cycle of such washing is completed, the door of the dishwasher main body 1 is opened, and the rack 19 is pulled out to the rack sliding plane portion 5 of the left table 3. By repeating such a series of operations, dishwashing is efficiently performed.

However, in the above-described rinsing step, in order to rinse and clean the tableware 18 after cleaning,
Requires 85 ° C hot water. This hot water is produced by the gas booster 9. That is, the gas burner 12
By burning the water storage tank 1 in the heat exchanger 13
The water in 1 is heated to create hot water efficiently.

[0005]

As a system for washing dishes, not only the dishwasher body 1 but also a rack 1 is used.
A right table 2 and a left table 3 for transporting the hot water 9 are required, and a gas booster 9 for producing hot water required for rinsing is required. Therefore, the right table 2, the left table 3, and the gas booster 9 must be properly connected to the dishwasher main body 1. However, in installation work, the exhaust cylinder 15 of the gas booster 9 and the exhaust cylinder of the right table 2 are often used. There is a problem that the positions of the cuts 17 do not match.

The reason for this is that the construction of the entire system has not been performed by a single company.
That is, the dishwasher body 1 and the gas booster 9 are manufactured as a set by the dishwasher manufacturer, and
5 is also manufactured together as a part of the gas booster 9.
On the other hand, the production of the right table 2 with the back guard 7 and the left table 3 with the back guard 8 and the cutting of the exhaust pipe 1
7 and the connection with the dishwasher body 1 are often performed by a kitchen equipment company.

The present invention provides a gas booster that is more efficient than a conventional gas booster, and integrates the gas booster into a dishwasher body to eliminate the connection work of the gas booster at the installation site. It is another object of the present invention to provide a dishwasher which does not need to form a cut for a stack in a back guard of a table.

[0008]

According to the first aspect of the present invention,
A gas booster device for supplying a rinsing water at a predetermined temperature to a rinsing water tank provided in the dishwasher main body is directly attached to a side surface of the dishwasher main body, and an exhaust passage for discharging exhaust gas from the gas booster device is provided. Along the back of the dishwasher body.

Therefore, since the gas booster device is integrated with the dishwasher main body and the exhaust path of the gas booster device is also integrally formed, a kitchen equipment manufacturer is required to construct a dishwashing system. Only needs to align the table with the dishwasher main body. Further, when manufacturing the table, it is not necessary to form the exhaust pipe cut for the gas booster device, so that there is no problem when constructing the system. Things.

According to a second aspect of the present invention, in the dishwasher according to the first aspect, a cleaning liquid tank is formed inside a back plate of the main body of the dishwasher, and the back plate is used as a part of a passage. An exhaust path for discharging exhaust gas was formed.

Therefore, the amount of heat generated by the gas booster device can be effectively used, and the thermal efficiency can be improved.

According to a third aspect of the present invention, in the dishwasher according to the second aspect, a heat exchanger is disposed between the cleaning liquid tank of the main body of the dishwasher and an exhaust passage for discharging exhaust gas from the gas booster device. .

Therefore, the amount of heat generated by the gas booster device can be more effectively utilized, and the thermal efficiency can be improved.

According to a fourth aspect of the present invention, a gas booster device for supplying a rinsing water at a predetermined temperature to a rinsing water tank provided in the dishwasher main body is directly attached to a side surface of the dishwasher main body. A heat exchange pipe for circulating the rinse water heated by the gas booster device was passed through the washing water tank of the dishwasher body.

Therefore, the cleaning water can be heated by the gas booster device, and it is not necessary to separately provide an electric heater or the like for heating the cleaning water, and the power consumption can be reduced.

[0016]

FIG. 6 shows a first embodiment of the present invention.
This will be described with reference to FIGS. First, the dishwasher body 2
For 0, a description of the internal mechanism is omitted, but a box-shaped door 22 having a downwardly open box is provided at the upper part of a main body case 21 formed in a rectangular shape so as to be able to move up and down. It is provided so as to be rotatable around a fulcrum 23 and to be moved by an operation handle 24 pulled out to the near side.

A gas booster device 25 is directly attached to a side surface of the main body case 21 of the dishwasher main body 20. This gas booster device 25 has a water storage tank 27 provided in a rectangular parallelepiped main body case 26, and a gas burner 28 installed below the heat exchanger 29.
Are formed. The water storage tank 27 is connected to a rinse water pump (not shown) in the dishwasher main body 20 by a connection pipe 30. Thus, the water storage tank 27 is formed along the outer peripheral surface of the main body case 26, and a heat exchange section 31 through which the hot air of the gas burner 28 flows is formed at the center thereof. The heat exchange section 31 includes an inner peripheral surface 32 of the water storage tank 27, an upper plate 33 located above, and a plurality of heat exchange pipes 34 penetrating in the front-rear direction. An exhaust port 3 is provided on the back of the main body case 26.
The exhaust port 35 is formed in a substantially L-shape as a whole, and communicates with an exhaust pipe 36 that constitutes an exhaust path along the back surface of the dishwasher main body 20. This exhaust pipe 36 is provided on one side of the back plate 3 of the dishwasher main body 20.
The washing water tank (not shown) of the dishwasher main body 20 is located inside the back plate 37. A heat exchanger 3 having a large contact area with exhaust gas and extremely high heat exchange efficiency is provided between the lower portion of the exhaust pipe 36 and the dishwasher main body 20.
8 are provided.

An 80 cm-high table is connected to both sides of the dishwasher main body 20 formed as described above to complete the dishwashing system, and the dishwasher in which the gas booster device 25 is integrally provided. Washing machine body 20
Is manufactured by a washing machine manufacturer, and the work of installing the dishwasher main body 20 and arranging tables on both sides is performed by a kitchen equipment company.

In such a configuration, the dishwashing operation is performed in the same manner as in the above-described conventional example, and the operation itself is not changed. The supply of the rinse water as the hot water can be performed without any problem by the supply from the gas booster device 25. However, the heat efficiency of the gas booster device 25 is much higher than that of the conventional gas booster device. That is, the amount of heat generated by the gas burner 28 is efficiently transmitted to the water stored in the water storage tank 27 due to the large surface area of the heat exchange unit 31. This is because the heat exchange section 31 includes a plurality of heat exchange pipes 34 disposed on the inner surface of the water storage tank 27 and a portion of the gas burner 28 through which hot air passes, and the upper plate 33 of the water storage tank 27. The contact area of the hot air generated by the gas burner 28 is extremely large. Therefore, the heat exchange efficiency is extremely high.

Further, the exhaust port 3 of the gas booster device 25
Although the amount of heat held by the exhaust gas discharged from the exhaust pipe 5 to the exhaust pipe 36 is considerable, one surface of the exhaust pipe 36 is a back plate 37 of the dishwasher main body 20 and a heat exchanger 38 is provided. This heats the water in the washing liquid tank provided in the dishwasher main body 20. Thereby, the heat of the exhaust gas passing through the exhaust pipe 36 is also effectively used.

As described above, there is no need to connect the gas booster device 25 and the dishwasher main body 20 which have been separately installed up to now, and it is possible to combine the gas booster device 25 with the dishwasher manufacturer in an ideal form before shipping. Therefore, there is no need for additional work for installation, and there is no need to additionally cut a cut for an exhaust pipe on the table. Further, the cleaning water is exhausted through the back of the dishwasher main body 20. , And has a large practical effect such as a small exhaust hood.

A second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Generally, dishwasher body 2
0 has a washing water tank 40 for storing washing water 39 and a rinse water tank (not shown). The temperature of the washing water 39 is about 65 ° C., and the temperature of the rinse water is about 85 ° C. Therefore, conventionally, for heating the washing water 39, an electric heater was inserted into the washing water tank 40, and the temperature was controlled by a thermostat. The capacity of the electric heater was required to be about 4 kW when the washing operation in which the washing cycle was about one minute was performed continuously. The calorific value is 4 kW x 860 kcal = 3440 kcal. In the present embodiment, the cleaning water 39 at a required temperature can be obtained without using such an electric heater. That is, the rinsing water 41 heated in the water storage tank 27 in the gas booster device 25 connected to the dishwasher main body 20 is used. Specifically, a small circulation pump 42 connected to the water storage tank 27 is disposed in the dishwasher main body 20, and a heat exchange pipe connected to the small circulation pump 42 and opening to the water storage tank 27. 43 is passed through the washing water 39. The heat exchange pipe 43 has a wall thickness of 0.1 mm.
It is a bellows-shaped pipe made of stainless steel of 2 to 0.3 mm and has a very large contact area for heat exchange.

In such a configuration, when the gas booster device 25 is formed directly by the dishwasher manufacturer, the heating structure of the washing water 39 used in the dishwasher body 20 is also manufactured integrally. Therefore, when installing the apparatus, there is no need for a kitchen equipment company to perform a work for heating the cleaning water 39, and the work is extremely simplified.

When the cleaning water 39 is heated by the electric heater and the heating method by the gas booster device 25 is compared. Assuming that the efficiency of the gas booster device 25 is 70%, The cost is about one half of the electricity bill, and the user has a great economic effect. In particular, in the case of the shape of the present embodiment, since the heat exchange pipe 43 has a small portion in contact with the outside air, there is almost no heat loss due to heat radiation to the outside air, and the efficiency is high.

[0025]

According to the first aspect of the present invention, a gas booster device for supplying rinsing water at a predetermined temperature to a rinsing water tank provided in the dishwasher main body is directly attached to a side surface of the dishwasher main body. Since an exhaust passage for discharging the exhaust gas of the gas booster device is provided along the back of the dishwasher main body, the gas booster device is integrated with the dishwasher main body, and the exhaust passage of the gas booster device is also provided. Is also integrally formed, so that the kitchen equipment supplier only needs to align the table with the dishwasher main body in order to construct the dishwashing system, and even when manufacturing the table, the gas booster device is used. It is not necessary to form the exhaust pipe notch for this purpose, and there is an effect that various conventional problems at the time of system construction are completely eliminated.

According to a second aspect of the present invention, in the dishwasher according to the first aspect, a cleaning liquid tank is formed inside a back plate of the main body of the dishwasher, and the back plate is used as a part of a passage. Since the exhaust path for exhausting the exhaust gas is formed, the amount of heat generated in the gas booster device can be effectively used, and the thermal efficiency can be improved.

According to a third aspect of the present invention, in the dishwasher according to the second aspect, a heat exchanger is provided between the cleaning liquid tank of the main body of the dishwasher and an exhaust passage for discharging exhaust gas from the gas booster device. Therefore, the amount of heat generated by the gas booster device can be more effectively used, and the thermal efficiency can be improved.

According to a fourth aspect of the present invention, a gas booster device for supplying rinsing water at a predetermined temperature to a rinsing water tank provided in the dishwasher main body is directly attached to a side surface of the dishwasher main body. Since the heat exchange pipe circulating the rinse water heated by the gas booster device is passed through the washing water tank of the dishwasher main body, the heating of the washing water can be performed by the gas booster device, and the washing water is heated. There is no need to separately provide an electric heater or the like, which has the effect of reducing power consumption.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a conventional dishwashing system.

FIG. 2 is a front view thereof.

FIG. 3 is a vertical side view of a gas booster portion.

FIG. 4 is a perspective view of an exhaust pipe.

FIG. 5 is a bottom view of the exhaust pipe.

FIG. 6 is a front view showing the first embodiment of the present invention.

FIG. 7 is a side view thereof.

FIG. 8 is a rear view thereof.

FIG. 9 is a vertical sectional side view of a heat exchanger part.

FIG. 10 is a front view showing a second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 20 dishwasher main body 25 gas booster device 36 exhaust pipe (exhaust passage) 38 heat exchanger 39 washing water 40 washing water tank

Claims (4)

[Claims] 1. A gas booster device for supplying a rinsing water at a predetermined temperature to a rinsing water tank provided in the dishwasher main body is directly attached to a side surface of the dishwasher main body. A dishwasher, wherein an exhaust path for discharging is provided along a back surface of the dishwasher main body. 2. A washing liquid tank is formed inside a back plate of a dishwasher main body, and an exhaust passage for discharging exhaust gas from a gas booster device is formed using the back plate as a part of a passage. The dishwasher according to 1. 3. The dishwasher according to claim 2, wherein a heat exchanger is provided between the washing liquid tank of the dishwasher main body and an exhaust passage for discharging the exhaust of the gas booster device. 4. A gas booster device for supplying a rinsing water at a predetermined temperature to a rinsing water tank provided in the dishwasher main body is directly attached to a side surface of the dishwasher main body, and heated by the gas booster device. A dishwasher, wherein a heat exchange pipe for circulating rinse water is passed through a washing water tank of the dishwasher body.