JP2017196193A - Tableware washing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide tableware washing equipment comprising a blower for blowing water droplets adhered to tableware, capable of reducing discharge of steam in the equipment to outside of the device, and enhancing heat efficiency in the device.SOLUTION: Tableware washing equipment 1 comprises: a conveyor 2 for transporting tableware P; a rough washing part 3 and a detergent washing part 4 for washing the tableware P which is transported by the conveyor 2; and a rinsing washing part 5 for performing rinsing washing of the tableware P washed by the detergent washing part 4 and transported by the conveyor 2. The detergent washing part 4 and the rinsing washing part 5 wash the tableware P with heated detergent washing water w2 and rinsing washing water w3. The rinsing washing part 5 comprises: a spraying port 62 for spraying air A to the tableware A: a suction port 63 for sucking the air A in the rinsing washing part 5; and a blower 65 for sucking the air A from the suction port 63 and discharging the sucked air A from the spraying port 62.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a dishwashing apparatus for washing dishes with washing water while conveying the dishes, and more particularly to a dishwashing apparatus provided with a blower that blows off water droplets attached to the dishes.

  2. Description of the Related Art Conventionally, when washing a large amount of tableware, a tableware washing apparatus that uses a washing nozzle to spray washing water onto a tableware while conveying a plurality of tableware by a conveying unit such as a conveyor has been used. The dishwashing apparatus is divided into a plurality of sections depending on the purpose of washing, such as rough washing, detergent washing, rinsing washing, and finishing washing. The conveyance part is arrange | positioned in the dishwashing apparatus so that tableware may be conveyed continuously to these divided sections.

  For example, Patent Document 1 discloses a transport unit that transports tableware, a pre-cleaning unit that pre-cleans the tableware transported by the transport unit, a detergent cleaning unit that cleans the tableware cleaned by the pre-cleaning unit, and a detergent. There has been proposed a dish washing apparatus including a rinse washing unit for rinsing and washing the dishes washed by the washing unit. In this dishwashing apparatus, a blowing port for blowing air from the blower onto the tableware is disposed between the detergent washing unit and the rinsing washing unit.

  According to the tableware washing apparatus described in Patent Literature 1, after the water droplets adhering to the tableware are blown off by the air from the spray outlet in the detergent cleaning unit, the tableware from which the water droplets have been blown off can be rinsed and washed.

Japanese Patent Laid-Open No. 10-235305

  However, in the dishwashing apparatus according to Patent Document 1, since the washing water sprayed on the dishes in the detergent washing unit is heated, steam is generated in the dishwashing apparatus. In an environment where steam is generated, air outside the device (outside air) is sucked in by a blower, and the sucked air is blown into the tableware from the outlet, so that the same amount of steam as the amount of outside air sucked in the dishwasher There is a risk of leakage from the inlet and outlet. Thereby, it is assumed that steam is sprayed on the worker who is working at the entrance and the exit of the dishwashing apparatus, which hinders the work.

  Furthermore, since the tableware washing apparatus which concerns on patent document 1 draws in the air outside the apparatus (outside air) lower than the temperature of washing water with a blower, and blows inhaled air on the tableware, the temperature in the dishwashing apparatus by outside air and There is a possibility that the temperature of the washing water is lowered. For this reason, it is assumed that the heat loss of the tableware washing apparatus becomes large and waste of heat etc. for heating the washing water is caused.

  The present invention has been made in view of the above points, and an object of the present invention is to release steam inside the apparatus to the outside of the apparatus in the dish washing apparatus provided with a blower that blows off water droplets attached to the tableware. An object of the present invention is to provide a dishwashing apparatus capable of reducing this and improving thermal efficiency.

  In view of the above problems, a dishwashing apparatus according to the present invention is a dishwashing apparatus for washing dishes, and the dishwashing apparatus includes a transport unit that transports tableware from an inlet to an outlet of the dishwashing apparatus, A main cleaning unit that cleans the tableware transported by the transport unit; and a rinse cleaning unit that rinses and cleans the tableware cleaned by the main cleaning unit and transported by the transport unit, the main cleaning unit Alternatively, at least one of the rinsing cleaning units is for cleaning dishes with heated cleaning water, and the rinsing cleaning unit sucks the air in the rinsing cleaning unit and a spray port for blowing air to the conveyed tableware. A suction port and a blower that sucks air from the suction port and pumps the sucked air to the spray port.

  ADVANTAGE OF THE INVENTION According to this invention, the tableware wash | cleaned by the main washing | cleaning part can be conveyed by a conveyance part, and the conveyed tableware can be wash | cleaned by a rinse washing | cleaning part. In the rinse washing part, the droplet (washing water) adhering to the tableware can be blown away with the air discharged from the spraying opening.

  Here, since at least one of the main washing section and the rinsing washing section wash the dishes with the heated washing water, steam is generated in the dish washing apparatus. In this invention, since the air in a rinse washing | cleaning part is suck | inhaled from the suction inlet of a dishwashing apparatus, the steam generated in the dishwashing apparatus flows with the air of a blowing opening, and is attracted | sucked from a suction inlet.

  In the present invention, since the blower sucks air from the suction port and pumps the sucked air to the spraying port, the air in the dishwasher can be circulated. That is, the flow rate of the air discharged from the blowing port and the flow rate of the air sucked from the suction port can maintain a flow rate balance in the dishwashing apparatus. As a result, the outside air is not introduced by the drive of the blower, and the steam in the dishwasher can be prevented from leaking outside.

  Furthermore, in the present invention, air in the dishwashing apparatus is circulated by the blower, and the blower does not suck air having a temperature lower than the temperature of the washing water from the outside of the apparatus. It can suppress that temperature falls and can improve the thermal efficiency of a dishwashing apparatus.

  As a more preferable aspect, the suction port is provided in the vicinity of the outlet of the dishwashing apparatus. According to this aspect, since the suction port sucks in steam that is about to leak from the outlet, it is possible to reduce the leakage of steam from the outlet.

  As a more preferable aspect, the rinse cleaning unit includes a guide member that guides the air on the inlet side to the suction port from the suction port in the rinse cleaning unit. According to this aspect, even if the suction port is provided in the vicinity of the outlet, the guide member guides air on the inlet side from the suction port of the dishwasher, that is, air at a predetermined distance from the outlet, to the suction port. Therefore, it becomes difficult for air outside the apparatus to be sucked through the outlet of the dishwashing apparatus. Thereby, the fall of the temperature in the dishwashing apparatus by the external air suck | inhaled from the exit and the temperature of washing water can be suppressed more effectively, and the thermal efficiency of a dishwashing apparatus can be improved.

  As a more preferable aspect, the rinse cleaning unit includes a reflecting member that reflects the air discharged from the spray port below the transport unit. According to this aspect, the air blown from the spray port can be reflected by the reflecting member provided below the transport unit, and the reflected air can be directed to the suction port.

  As a more preferable aspect, the rinsing cleaning unit includes a rinsing cleaning nozzle that sprays rinsing cleaning water onto the tableware transported by the transporting unit, and the transporting unit is located closer to the outlet side of the dishwashing apparatus than the rinsing cleaning nozzle. A finishing cleaning nozzle that sprays finishing cleaning water, which is clean water, onto the tableware conveyed by the section, a rinsing cleaning water sprayed onto the tableware and a finishing cleaning water, and a storage tank for storing the recovered cleaning water, A pumping unit that pumps the cleaning water stored in the storage tank to the cleaning nozzle as the rinsing cleaning water, and the spray port is provided between the rinsing cleaning nozzle and the finishing cleaning nozzle. It has been.

  According to this aspect, in the rinsing cleaning section, the rinsing cleaning water sprayed by the rinsing cleaning nozzle and adhered to the tableware is blown off by the air from the spray port, and then the tableware is subjected to the finishing cleaning water from the finishing cleaning nozzle ( It can be washed with clean water). Thereby, tableware can be washed with a small amount of finish washing water, and consumption of clean water used for finish washing can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, in the tableware washing apparatus provided with the blower which blows off the water drop adhering to tableware, while reducing the steam in the apparatus leaking outside the apparatus, the thermal efficiency in an apparatus can be improved.

The typical conceptual diagram of the tableware washing apparatus concerning the embodiment of the present invention. (A) is a typical perspective view of the strainer vicinity of the tableware washing apparatus shown in FIG. 1, (b) is a typical perspective view which concerns on the modification of Fig.2 (a).

Hereinafter, a dishwashing apparatus according to an embodiment of the present invention will be described with reference to FIG.
1. About the whole structure of the tableware washing apparatus 1 As shown in FIG. 1, the tableware washing apparatus 1 which concerns on this embodiment is an apparatus which wash | cleans with the wash water, conveying the tableware P with the conveyor 2 (conveyance part). The dishwashing apparatus 1 includes an entrance buffer chamber 10A and a cleaning chamber 10B. The cleaning chamber 10B includes a rough cleaning unit 3 for roughly cleaning the tableware P, a detergent cleaning unit 4 for cleaning the roughly cleaned tableware P, and a rinse cleaning unit 5 for rinsing and cleaning the tableware P cleaned. Here, the rough cleaning unit 3 and the detergent cleaning unit 4 correspond to the main cleaning unit in the present invention.

  The conveyor 2 is a device that conveys the tableware P from the inlet 11 of the tableware washing apparatus 1 into which the tableware P is carried toward the outlet 13 from which the tableware P is carried out. The dish washing apparatus 1 is formed with a conveyance path 12 that conveys the tableware P to the outlet 13 while washing the tableware P introduced from the inlet 11. The conveyance passage 12 is a passage through which the tableware P is continuously passed from the rough cleaning section 3 to the rinse cleaning section 5 described above, and the passage of each cleaning section constitutes a chamber for cleaning the tableware P.

  A first inlet curtain (throwing curtain) 11a is attached to the inlet (tableware opening) 11 of the dishwashing apparatus 1, and a second inlet curtain 11b is provided between the inlet buffer chamber 10A and the washing chamber 10B. It is attached. Further, an outlet curtain 13 a is attached to the outlet 13 of the dishwasher 1. These curtains 11a, 11b, and 13a have flexibility and are attached so as to hang down from the apparatus main body.

  By providing the first entrance curtain 11a and the exit curtain 13a, it is possible to reduce the leakage of steam generated in the apparatus from the entrance 11 and the exit 13. Furthermore, by providing the second entrance curtain 11b, leakage of steam from the washing chamber 10B toward the entrance 11 of the tableware washing apparatus 1 can be suppressed. Furthermore, steam can be extinguished in the inlet buffer chamber 10A described later between the first and second inlet curtains 11a and 11b. In addition, since the steam is circulated in the outlet 13 of the tableware washing apparatus 1 as will be described later, only the outlet curtain 13a is disposed on the outlet side, unlike the inlet side.

  The conveyor 2 includes a chain belt 21 that moves while placing the tableware P from the inlet 11 to the outlet 13 of the tableware washing apparatus 1 (specifically, the conveyance path 12), a driven roller 22 around which the chain belt 21 is wound, and a drive. And a roller 23. The drive roller 23 is connected to a drive motor 25 via a drive belt 24.

  With this configuration, when the drive motor 25 is driven, the drive roller 23 is rotated via the drive belt 24, and the chain belt 21 wound around the drive roller 23 rotates the driven roller 22 while conveying the conveyance path 12. Move in. Thereby, the tableware P placed on the chain belt 21 can be transported in the transport path 12 from the rough cleaning section 3 to the rinse cleaning section 5.

  Furthermore, a steam guide plate 10 c is installed between the inlet 11 of the dishwasher 1 and the driven roller 22 of the conveyor 2 and below the upper chain belt 21. More specifically, the steam guide plate 10c allows steam from the cleaning chamber 10B that has entered the lower side of the inlet 11 to be discharged toward the inlet buffer chamber 10A without being discharged from the upper chain belt 21 to the outside. Arranged to guide.

2. About the entrance buffer chamber 10A (Moisler) The entrance buffer chamber 10A is installed closer to the entrance 11 of the dishwasher 1 than the wash chamber 10B, and prevents steam leaking from the wash chamber 10B from leaking outside the apparatus. is there. In the inlet buffer chamber 10A, a discharge port 10a for discharging steam is formed above and communicates with a heat exchanger 72 described later via a discharge duct 10b. An exhaust fan 73 a is attached to the heat exchanger 72.

  By providing the exhaust fan 73a, steam leaked from the cleaning chamber 10B can be sucked into the heat exchanger 72 from the discharge port 10a of the inlet buffer chamber 10A through the discharge duct 10b. In the heat exchanger 72, the steam that has been sucked in is cooled by passing water W <b> 4 (described later), and the steam is eliminated by exchanging the heat of the steam with the clean water. The air from which the steam has disappeared is discharged to the outside through the exhaust port 73b. Hereinafter, the apparatus configuration from the rough cleaning section 3 to the rinse cleaning section 5 will be described in detail.

3. About the rough cleaning unit 3 The rough cleaning unit 3 rough-cleans the tableware P in order to wash away the coarse dirt adhering to the used tableware P conveyed by the conveyor 2 from the entrance 11 of the tableware cleaning device 1 with the rough cleaning water w1. Section to be washed. The rough cleaning unit 3 includes a rough cleaning nozzle 31 that sprays the rough cleaning water w1 onto the tableware P conveyed by the conveyor 2 from above and below. The rough cleaning nozzle 31 has a nozzle pipe (not shown) in which an axis is arranged in a direction crossing the conveyor 2 (width direction of the chain belt 21 of the conveyor 2) and a predetermined along the axis direction of the nozzle pipe. And a plurality of nozzle tips (not shown) attached to the nozzle pipe.

  As shown in FIG. 1, four rough cleaning nozzles 31 are arranged on the upper and lower sides along the conveying direction of the tableware P across the chain belt 21 of the conveyor 2. However, if the tableware P can be roughly cleaned with the rough cleaning water w1, the number and arrangement of the rough cleaning nozzles 31 are not limited thereto.

  Here, of the four rough cleaning nozzles 31, the upper and lower cleaning nozzles closest to the inlet 11 are arranged so that the spray direction is inclined in the rough cleaning section (on the outlet 13 side). In FIG. 1, for convenience of explanation, only the injection of the upper and lower rough cleaning nozzles closest to the inlet 11 is illustrated, and the blowing direction of the other rough cleaning nozzles 31 is the vertical direction.

  By inclining the blowing direction of the upper and lower rough cleaning nozzles 31 closest to the inlet 11, the rough cleaning water w <b> 1 is jetted from the inlet 11 side to the outlet 13 side. As a result, a slight air flow is generated along with the injection of the rough cleaning water w1, and steam flowing toward the inlet 11 is pushed back into the rough cleaning section 3, and leakage of steam from the inlet 11 can be suppressed.

  The rough cleaning unit 3 includes a rough cleaning water storage tank 32 that recovers the rough cleaning water w <b> 1 discharged from the rough cleaning nozzle 31 and stores the recovered rough cleaning water w <b> 1 below the rough cleaning nozzle 31. The water temperature of the rough cleaning water w1 stored in the rough cleaning water storage tank 32 is about 60 ° C., and a heater may be further provided as necessary. Above the rough washing water storage tank 32, a water supply port 36 for supplying rinse washing water w3 described later is disposed. A strainer 39 is disposed between the conveyor 2 and the rough cleaning water storage tank 32. The strainer 39 captures the dirt washed off from the tableware P by the rough washing water w1 with a mesh member (filter).

  A water amount detection sensor (not shown) for detecting the amount of water (accommodated amount) of the stored rough cleaning water w <b> 1 is disposed inside the rough cleaning water storage tank 32. A signal corresponding to the water amount of the rough cleaning water w1 detected by the water amount detection sensor is input to the control unit 8 via a signal line.

  The rough cleaning unit 3 includes a pressure feed pump 33 that pumps the rough cleaning water w1 stored in the rough cleaning water storage tank 32 to the rough cleaning nozzle 31, and a rough cleaning water w1 that is pumped by the pressure pump 33 to the rough cleaning nozzle 31. And a water supply pipe 34 for supplying water.

  The position of the chain belt 21 (on the conveyor 2) in the center in the transport direction of the region where the rough cleaning water w1 is sprayed by the rough cleaning nozzle 31 is lower than the position of the chain belt 21 before and after the tableware P is transported. Further, the chain belt 21 before and after the central chain belt 21 in the conveying direction is inclined with respect to the horizontal direction. As a result, the tableware P being conveyed is inclined so as to become lower toward the center, and the rough cleaning water w1 sprayed from the rough cleaning nozzle 31 and attached to the tableware P is removed below the rough cleaning nozzle 31. It can fall to the rough washing water storage tank 32, and this can be collect | recovered efficiently.

4). About detergent washing part 4 In order to wash away dirt, such as oil which adhered to tableware P after rough washing conveyed from rough washing part 3 by conveyor 2, detergent washing part 4 is washed with detergent washing water w2 containing detergent. This is a section for cleaning the tableware P with detergent. The detergent cleaning unit 4 includes a detergent cleaning nozzle 41 that sprays detergent cleaning water w2 on the tableware P conveyed by the conveyor 2 from above and below. The detergent cleaning nozzle 41 has the same structure as the rough cleaning nozzle 31. The detergent cleaning nozzles 41 are arranged four above and below along the conveying direction of the tableware P across the chain belt 21 of the conveyor 2, but if the tableware P can be cleaned with the detergent cleaning water w2, The number and arrangement of the detergent cleaning nozzles 41 are not limited to this.

  The detergent washing unit 4 includes a detergent washing water storage tank 42 that collects the detergent washing water w <b> 2 discharged from the detergent washing nozzle 41 and accommodates the collected detergent washing water w <b> 2 below the detergent washing nozzle 41. Above the detergent cleaning water storage tank 42, a water supply port 46 for supplying rinse cleaning water w3 described later is disposed. A strainer 49 is disposed between the conveyor 2 and the detergent cleaning water storage tank 42. The strainer 49 captures the dirt washed from the tableware P with the detergent washing water w2 by a mesh member (filter).

  In the detergent cleaning water storage tank 42, a water amount detection sensor (not shown) for detecting the amount of water (accommodation amount) of the stored detergent cleaning water w2 and a concentration sensor (not shown) for measuring the detergent concentration of the detergent cleaning water w2. And a temperature sensor (not shown) for measuring the temperature of the detergent cleaning water w2. A signal corresponding to the amount of detergent cleaning water w2 detected by the water amount detection sensor is input to the control unit 8 through a signal line. Signals from the concentration sensor and the temperature sensor are also input to the control unit 8.

  Further, a heater 48 for heating the stored detergent cleaning water w2 is disposed inside the detergent cleaning water storage tank 42. The heater 48 heats the stored detergent cleaning water w2 so that the detergent cleaning water w2 is sprayed from the detergent cleaning nozzle 41 to the tableware P at a predetermined temperature (for example, 60 to 65 ° C.). Specifically, the control unit 8 controls the heating temperature of the heater 48 based on the temperature detected by the temperature sensor described above.

  The detergent cleaning unit 4 presses the detergent cleaning water w2 stored in the detergent cleaning water storage tank 42 to the detergent cleaning nozzle 41, and the detergent cleaning water w2 pumped by the pressure pump 43 to the detergent cleaning nozzle 41. And a water supply pipe 44 for supplying water.

  A water return inclined plate 76 is disposed between the detergent cleaning nozzle 41 of the detergent cleaning unit 4 and the rough cleaning nozzle 31 of the rough cleaning unit 3. The water return inclined plate 76 has one side (rough cleaning unit 3 side) inclined from the center of the plate in the transport direction to the lower side where the rough cleaning water storage tank 32 is located, and the other side (detergent cleaning unit 4 side) is detergent cleaned. The water storage tank 42 is inclined downward. Thereby, after being discharged from the rough cleaning nozzle 31 to the tableware P, the rough cleaning water w1 that adheres to the tableware P and falls from the tableware P, or the rough cleaning water w1 scattered from the tableware P does not move to the detergent cleaning unit 4. Thus, the rough cleaning water w1 can be collected in the rough cleaning water storage tank 32. Similarly, after the detergent cleaning nozzle 41 discharges to the tableware P, the detergent cleaning water w2 that adheres to the tableware P and falls from the tableware P, or the detergent cleaning water w2 scattered from the tableware P does not move to the rough cleaning unit 3. As described above, the detergent cleaning water w <b> 2 can be collected in the detergent cleaning water storage tank 42.

  The position of the chain belt 21 (on the conveyor 2) in the center in the transport direction of the region where the detergent cleaning water w2 is sprayed by the detergent cleaning nozzle 41 is lower than the position of the chain belt 21 before and after the tableware P is transported. Further, the chain belt 21 before and after the central chain belt 21 in the conveying direction is inclined with respect to the horizontal direction. As a result, the tableware P being transported is inclined so as to become lower toward the center, and the detergent cleaning water w2 sprayed from the detergent cleaning nozzle 41 and adhering to the tableware P is removed below the detergent cleaning nozzle 41. It can fall to the detergent washing water storage tank 42, and this can be collect | recovered efficiently.

5. About the Rinse Washing Unit 5 The rinse washing unit 5 rinses the detergent, etc., adhered to the tableware P after the detergent washing carried by the conveyor 2 from the detergent washing unit 4 with the rinse washing water w3, and then finish washing water (clean water) ) This is a section for rinsing and finishing washing the tableware P so as to be washed away with w4. The rinsing cleaning section 5 includes a rinsing cleaning nozzle 51A that sprays rinsing cleaning water w3 onto the tableware P conveyed by the conveyor 2 from above and below. Further, the rinsing cleaning unit 5 includes a finishing cleaning nozzle 51B that sprays finishing cleaning water w4, which is clean water, onto the tableware P conveyed by the conveyor 2 on the outlet 13 side of the tableware cleaning apparatus 1 relative to the rinsing cleaning nozzle 51A. Yes.

  The rinse cleaning nozzle 51A and the finish cleaning nozzle 51B have the same structure as the rough cleaning nozzle 31. One rinse cleaning nozzle 51A and one finish cleaning nozzle 51B are arranged above and below the chain belt 21 of the conveyor 2, respectively. However, as long as the tableware P can be washed with the rinse water w3 and the finish wash water w4, the number and arrangement of the rinse nozzle 51A and the finish nozzle 51B are not limited to this.

  The rinse cleaning unit 5 collects rinse water w3 discharged from the rinse nozzle 51A and clean water (finished water) w4 discharged from the finish nozzle 51B, and contains rinse water containing the collected rinse water w3. A tank 52 is provided. The rinse water storage tank 52 is disposed below the rinse nozzle 51A and the finish nozzle 51B. Above the rinse water storage tank 52, a water supply port 56 for supplying clean water w4 described later is disposed.

  The rinse water storage tank 52 includes a water amount detection sensor (not shown) for detecting the amount of water (accommodation amount) of the rinse water w3 accommodated, and a temperature sensor (not shown) for measuring the temperature of the rinse water w3 accommodated. (Not shown). A signal corresponding to the amount of rinse water w3 detected by the water amount detection sensor and a signal from the temperature sensor are input to the control unit 8 via a signal line.

  Furthermore, a heater 58 for heating the rinse water w3 accommodated therein is disposed inside the rinse water reservoir 52. The heating temperature of the heater 58 is controlled by the control unit 8 so that the rinse water w3 is sprayed to the tableware P at a predetermined temperature (for example, 65 to 70 ° C.) from the rinse nozzle 51A.

  The rinsing cleaning unit 5 pumps the rinsing cleaning water w3 stored in the rinsing cleaning water storage tank 52 to the rinsing cleaning nozzle 51A, and the rinsing cleaning water w3 pumped by the pumping pump 53 to the rinsing cleaning nozzle 51A. A water supply pipe 54 for supplying water.

  Further, the water supply pipe 54 divides the rinsing cleaning water w3 pressure-fed to the rinsing cleaning nozzle 51A, and the divided rinsing cleaning water w3 is supplied to the rough cleaning water storage tank 32 and the detergent cleaning water storage tank 42, respectively. As shown, the water pipes 54A and 54B are connected.

  Specifically, each of the water supply pipes 54 </ b> A and 54 </ b> B is connected to water supply ports 36 and 46 disposed above the rough cleaning water storage tank 32 and the detergent cleaning water storage tank 42. Adjustment valves 55A and 55B for adjusting the supply amounts of the rinse water w3 in the rough cleaning water storage tank 32 and the detergent cleaning water storage tank 42 are attached to the water supply pipes 54A and 54B, respectively.

  The adjustment valve 55A is provided to the control unit 8 so that the opening degree of the adjustment valve 55A can be adjusted based on the amount of water in the rough washing water storage tank 32 and the amount of water in the rinse water storage tank 52 detected by the water amount detection sensor. It is connected. On the other hand, the regulating valve 55B adjusts the regulating valve 55B based on the amount of water in the detergent cleaning water storage tank 42 and the amount of water in the rinse cleaning water storage tank 52 detected by the water amount detection sensor and, if necessary, the detergent concentration of the detergent cleaning water w2. It is connected to the control part 8 so that adjustment of the opening degree can be performed.

  Here, the clean water w4 supplied to the finish cleaning nozzle 51B is supplied from the supply port 70 to the tableware cleaning apparatus 1. The supplied clean water w4 passes through the heat exchanger 72 and is heated. The heat exchanger 72 is attached above the rough cleaning unit 3 in the dishwashing apparatus 1, takes in the steam or steam heat of the cleaning water heated by the heaters 48 and 58 described above, and rises with the captured heat. Water w4 is heated.

  The clean water w4 discharged from the heat exchanger 72 is diverted toward the finishing cleaning nozzle 51B and the water supply port 56. A flow rate adjustment valve 74 is attached upstream of the finish cleaning nozzle 51 </ b> B, and an on-off valve 75 is attached upstream of the water supply port 56. The opening degree of the flow rate adjustment valve 74 and the opening / closing of the opening / closing valve 75 are controlled by a control signal input via a signal line.

  Between the rinse cleaning nozzle 51A of the rinse cleaning unit 5 and the detergent cleaning nozzle 41 of the detergent cleaning unit 4, two water return inclined plates 77 that are inclined downward toward the detergent cleaning unit 4 are arranged. . Thereby, after the detergent cleaning nozzle 41 releases the tableware P to the tableware P, the detergent cleaning water w2 that adheres to the tableware P and falls from the tableware P, or the detergent cleaning water w2 scattered from the tableware P does not move to the rinse cleaning unit 5. As described above, the detergent cleaning water w <b> 2 can be collected in the detergent cleaning water storage tank 42. As a result, it is possible to restrict the detergent cleaning water w2 from being taken out from the detergent cleaning unit 4 to the rinse cleaning unit 5, and to reduce the amount of detergent mixed into the rinse cleaning water w3.

6). Structure for circulating air A The rinsing unit 5 is a jet projecting above the chain belt 21 (of the conveyor 2) and projecting toward the conveyor 2 (that is, below) from the ceiling surface that forms the conveyance path 12 of the rinsing unit 5. The nozzle 61 is provided, and the spray port of the spray nozzle 61 is a spray port 62 that blows air onto the tableware P conveyed by the conveyor.

  The rinsing cleaning unit 5 includes a suction port 63 that sucks air A in the rinsing cleaning unit 5 and a blower 65 that communicates with the blowing port 62 and the suction port 63 on the outlet 13 side of the tableware washing apparatus 1 from the spraying port 62. And more. The blowing port 62 and the suction port 63 communicate with the blower 65 through the circulation duct 64. The blower 65 is connected to the circulation duct 64 so as to suck air A from the suction port 63 and pressure-feed the sucked air A to the blowing port 62. The suction port 63 is provided in the vicinity of the outlet 13 in the ceiling surface that forms the transport passage 12 of the rinsing cleaning unit 5, and sucks steam that is about to leak from the outlet 13 together with the air A.

  Although the blowing port 62 and the suction port 63 have a shape opened in a rectangular shape along the direction crossing the conveyor 2, air can be blown to the conveyed tableware P, and the air in the apparatus can be sucked. If it is, the installation surface and shape are not specifically limited.

  Furthermore, in this embodiment, the spray port (spout port) 62 of the spray nozzle 61 is provided between the rinse cleaning nozzle 51A and the finish cleaning nozzle 51B. As a result, after the droplets of the rinse cleaning water w3 sprayed by the rinse cleaning nozzle 51A and attached to the tableware P are blown off by the air from the spray port 62, the final cleaning water (clean water) w4 from the finish cleaning nozzle 51B is blown. Thus, the tableware P can be washed. In order to increase the rinse cleaning effect by blowing off excess adhering water in advance, the tableware P can be cleaned with a small amount of the final cleaning water w4. For this reason, the consumption of the clean water w4 used for finish cleaning can be reduced.

  The blowing direction of the blowing port 62 is inclined toward the inlet 11 side so that air from the blower 65 is blown from the blowing port 62 to the inlet 11 side (upstream side in the transport direction). Thereby, the droplet of the rinse water w3 adhering to the tableware P is blown away to the upstream side, and the tableware P can be drained more effectively. Further, since air from the blowing port 62 is blown down toward the inlet 11 side (upstream side in the conveying direction), the action of pushing back the steam flowing from the inlet 11 side to the outlet 13 side to the inlet 11 side works. The leakage of steam from 13 can be more effectively suppressed.

  The rinse cleaning unit 5 includes a strainer 80 between the conveyor 2 and the rinse water storage tank 52. The strainer 80 also has a function as a reflecting member that reflects the air A emitted from the spray port 62 in addition to the function of capturing dirt washed off from the tableware P by the rinse water w3 and the like.

  Specifically, as shown in FIG. 2A, the strainer 80 includes a flat plate-like main body portion 81 and a frame portion 82 erected from the periphery of the main body portion 81. The strainer 80 is disposed in the upper part of the rinse water storage tank 52. The main body 81 is formed with a plurality of through holes 83 penetrating in the thickness direction. As a result, when the rinse water w3 ejected from the rinse nozzle 51A returns to the rinse water storage tank 52, the rinse water w3 passes through the through-hole 83, and the dust contained in the rinse water w3. Can catch dirt.

  Here, the main body 81 can be manufactured by punching a through hole 83 in a plate body such as a metal plate by punching or the like. Therefore, the surface of the main body 81 has one continuous flat surface, and an opening of the through hole 83 is formed on this surface. As a result, the air A blown out (blowed down) from the blowing port 62 can be reflected on the surface of the strainer 80 provided below the conveyor 2, and the reflected air A is directed to the suction port 63. You can make it. As shown in FIG. 2 (a), the strainer 80 is installed horizontally, but it may be installed in an inclined manner so that the reflected air A flows smoothly to the inlet port 63 side. The installation state is not limited.

  In addition to this, for example, as shown in FIG. 2B, the main body portion 81 ′ of the strainer 80 is a mesh member, and the reflection that reflects the air A emitted from the blowing port 62 is reflected on the upper portion of the strainer 80. A plate (reflecting member) 84 may be provided separately. In FIG. 2B, the reflector 84 is inclined downward toward the outlet side so as to reflect the air A discharged from the blowing port 62 toward the outlet 13 side and guide it to the suction port 63. ing. However, as long as the air A reflected by the reflecting plate 84 can be sucked by the suction port 63, the reflecting plate 84 may be arranged in the horizontal direction, and the arrangement state is not particularly limited.

  The rinse cleaning unit 5 includes a guide plate (guide member) 68 that guides the air A on the inlet 11 side in the rinse cleaning unit 5 to the suction port 63. The guide plate 68 extends from the inner wall of the outlet 13 toward the inlet 11 so as to cover the inlet 63 while being separated from the inlet 63, and is inclined toward the inlet 11 from the outlet 13. . The air on the inlet 11 side from the suction port 63 is guided to the suction port 63.

  By providing the guide plate 68, it is possible to suppress the outside air from being sucked into the suction port 63 from the outlet 13, and to guide the air A on the inlet 11 side of the tableware washing apparatus 1 in the rinse cleaning unit 5 to the suction port. . In particular, by covering the suction port 63 with the guide plate 68, the guide plate 68 becomes negative pressure, and the surrounding steam can be sucked in evenly and efficiently, and the suction of the outlet curtain 13a can be prevented. For this reason, even if the suction port 63 is provided in the vicinity of the outlet 13, air from the outlet 13 side and suction of the outlet curtain 13 a can be suppressed, so that a great distance is secured from the outlet 13 to the suction port 63. There is no need, and the apparatus can be made compact.

  If the length of the guide plate 68 in the direction of the inlet 11 is too short, too much outside air is sucked in from the outlet 13, and if it is too long, the steam in the rinsing washing section 5 leaks out from the outlet 13. The amount is appropriately adjusted according to the amount of suction and the amount of steam. The guide plate 68 extends from the inner wall of the outlet 13, but is not limited to this shape as long as the air A on the inlet 11 side is guided from the suction port 63 to the suction port 63.

  Further, a storage tank partition plate that partitions the storage tank between the rough cleaning water storage tank 32 and the detergent cleaning water storage tank 42 and between the detergent cleaning water storage tank 42 and the rinse cleaning water storage tank 52. 79 is erected. By providing the storage tank partition plate 79, it is possible to prevent the washing water from moving between the storage tanks due to overflow. Further, the air injected from the spray port 62 is reflected to the strainer 80 together with the steam in the apparatus, but at this time, a part of the reflected air also flows to the inlet 11 side. However, the storage tank partition plate 79 between the detergent cleaning water storage tank 42 and the rinse cleaning water storage tank 52 suppresses the flow of steam to the inlet 11 side and suppresses the leakage of steam to the inlet 11. it can.

7). About the washing | cleaning method of the tableware P using the tableware washing apparatus 1 7-1. Preparation for Operation of the Tableware Cleaning Device 1 First, as a preparation stage for the operation of the tableware cleaning device 1, first, the clean water w4 is supplied from the supply port 70 to the tableware cleaning device 1. The supplied clean water w4 flows in the order of the clean water pipe 71 from the supply port 70 via the heat exchanger 72, passes through the on-off valve 75 opened by the control signal of the control unit 8, and enters the rinse water storage tank 52. Supplied. At this time, the flow rate adjusting valve 74 may be closed by a control signal from the control unit 8.

  The clean water w4 of the rinse water storage tank 52 is pumped by the pump pump 53 and is opened by the control signals of the control unit 8 from the water supply pipes 54A and 54B through the adjustment valves 55A and 55B. Sent to. Accordingly, the cleaning water is supplied to each of the rough cleaning water storage tank 32 and the detergent cleaning water storage tank 42. In the detergent cleaning water storage tank 42, detergent is supplied from a detergent supply device (not shown) so as to obtain a desired detergent concentration. As a result, the detergent cleaning water w <b> 2 is accommodated in the detergent cleaning water storage tank 42. Also, the detergent cleaning water w2 stored in the detergent cleaning water storage tank 42 and the rinse cleaning water w3 stored in the rinse cleaning water storage tank 52 are heated to the set temperatures by the heaters 48 and 58, respectively. The In this state, the drive motor 25 and the pressure feed pumps 33, 43, 53 are driven.

7-2. Cleaning Tableware P by Tableware Cleaning Device 1 A method for cleaning tableware P will be described below. The tableware P placed on the chain belt 21 of the conveyor 2 is conveyed from the inlet 11 of the tableware washing apparatus 1 into the conveyance path 12. The tableware P that has passed through the inlet 11 of the tableware washing apparatus 1 is conveyed to the rough washing unit 3.

  In the rough cleaning section 3, the rough cleaning water w <b> 1 (for example, cleaning water heated to about 60 ° C.) pumped by the pump 33 from the rough cleaning water storage tank 32 and sent to the rough cleaning nozzle 31 is used as the rough cleaning nozzle 31. And is sprayed on the tableware P. Thereby, the deposit | attachment adhering to the tableware P is washed away. At this time, steam flowing toward the inlet 11 in the cleaning chamber 10B is sent from the discharge port 10a of the inlet buffer chamber 10A to the heat exchanger 72 via the discharge duct 10b. In the heat exchanger 72, while the hot water w4 sent to the rinse washing | cleaning part 5 is heated with the heat | fever contained in the steam, the steam is cooled with the clean water w4, and this is lost.

  Next, the tableware P roughly cleaned by the rough cleaning unit 3 is conveyed to the detergent cleaning unit 4. In the detergent cleaning unit 4, the detergent cleaning water w <b> 2 whose temperature is adjusted in the detergent cleaning water storage tank 42 (for example, temperature adjusted to 60 to 65 ° C.) is pumped to the detergent cleaning nozzle 41 by the pumping pump 43. The sent detergent cleaning water w2 is discharged from the detergent cleaning nozzle 41 and sprayed onto the tableware P, and the oil and the like adhering to the tableware P is washed away. Here, when the amount of the detergent cleaning water in the detergent cleaning water storage tank 42 is insufficient, the adjustment valve 55B is opened, and the cleaning water is supplied from the rinse cleaning unit 5. In accordance with this, the concentration of the detergent contained in the detergent washing water is also adjusted.

  Next, the tableware P cleaned by the detergent cleaning unit 4 is conveyed to the rinse cleaning unit 5. In the rinsing cleaning section 5, the rinsing cleaning water w <b> 3 whose temperature has been adjusted in the rinsing cleaning water storage tank 52 (for example, temperature adjusted to 65 to 70 ° C.) is pumped by the pumping pump 53 to the rinsing nozzle 51 </ b> A. The sent rinse water w3 is discharged from the rinse nozzle 51A, sprayed onto the tableware P, and the detergent attached to the tableware P is washed away.

  Next, the tableware P rinsed and washed by the rinse washing unit 5 is conveyed below the spray port 62, and the air A blown from the spray port 62 is blown onto the tableware P, and the rinse water w3 attached to the tableware P is washed. The liquid is drained. At this time, the air A blown out from the blowing port 62 collides with the tableware P, and blows off droplets containing cleaning water and residual detergent. Thereafter, the air A containing steam that collides with the strainer (reflecting member) 80 is reflected by the strainer 80 and changes the traveling direction toward the suction port 63 side that sucks air and becomes negative pressure.

  The air A whose direction has changed toward the suction port 63 is guided to the suction port 63 by the guide plate 68, passes through the circulation duct 64, and is sucked into the blower 65. The sucked air A is pumped by the blower 65 to the blowing port 62 of the jet nozzle 61 and is discharged from the blowing port 62 again.

  The blower 65 sucks the air in the rinsing cleaning unit 5 through the circulation duct 64 and blows out the sucked air into the rinsing cleaning unit 5 as it is, so that the suction amount and the blowing amount to the rinsing cleaning unit 5 are the same amount. Become. Thereby, since the outside air is not introduced, the air in the rinsing unit 5 does not generate a negative pressure or a positive pressure as compared with the outside air, and the intake of the outside air or the leakage of the steam outside the apparatus hardly occurs. As a result, on the outlet 13 side, the operator who takes out the tableware P can work without discomfort due to steam.

  Further, the blower 65 blows away the cleaning water adhering to the tableware P before the final cleaning in the final process. Furthermore, since the air A in the vicinity of the outlet 13 is sucked, a circulating flow of the air A is formed in the apparatus on the outlet 13 side. Therefore, since the air A including steam toward the outlet 13 is drawn into the circulation flow and sucked from the suction port 63, the flow of the air A including steam toward the outlet 13 can be blocked by the circulation flow.

  Further, the blower 65 sucks the air A containing steam in the rinsing cleaning section 5 (indoor) and circulates so that the sucked air A is sprayed to the rinsing cleaning section 5. The air temperature is the same as the room temperature. Therefore, the blower 65 does not reduce the temperature of the blown tableware P, the conveyor 2, the temperature in the room, and the temperature of the rinse water storage tank 52, so that excessive heating by the heaters 48 and 58 can be suppressed. . Thus, the thermal efficiency in the dishwashing apparatus 1 can be improved.

  Furthermore, since the steam generated in the cleaning chamber 10B is prevented from leaking out from the inlet 11 and the outlet 13, the steam stays in the cleaning chamber 10B. As a result, the leakage of heat due to steam is suppressed from the cleaning chamber 10B, and the heat stays in the cleaning chamber 10B, thereby further preventing the room temperature in the cleaning chamber 10B and the water temperature of the cleaning water from being reduced. Loss can be minimized.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed.

  For example, in this embodiment, the rough cleaning unit and the detergent cleaning unit are provided as the main cleaning unit of the present invention. However, if the cleaning unit includes a cleaning nozzle, a storage tank, and a pumping unit, the cleaning unit is further provided. Alternatively, either the rough cleaning section or the detergent cleaning section may be omitted.

  In the present embodiment, since clean water is used for the finish cleaning nozzle, a spray port is provided between the rinse cleaning nozzle and the finish cleaning nozzle from the viewpoint of reducing the consumption of clean water. However, the spray outlet is not limited to the arrangement according to the embodiment as long as it is arranged at a location where drainage of the tableware is required.

  In the present embodiment, the suction port is provided in the vicinity of the outlet as a preferred mode. However, if the suction port is arranged on the outlet side of the spraying port, air can be circulated in the apparatus. It does not have to be in the vicinity.

  In the present embodiment, air is suitably circulated in the apparatus by providing a reflecting plate and a guide plate as a preferred mode, but either one may be provided or both may not be provided. Moreover, in this embodiment, although the strainer or the reflecting plate was provided as a plate-shaped reflection member, if it can reflect the air from a spraying opening, it will not be limited to a plate-shaped thing, a block shape, a board It may be a reflecting member such as a shape. Similarly, in this embodiment, a guide plate is provided as a plate-shaped guide member. However, as long as air can be guided to the suction port, the guide plate is not limited to a plate-like member, and a tubular shape, a board shape, etc. It may be a guide member.

  In the present embodiment, the detergent cleaning water and the rinse cleaning water are heated and sprayed by the heater in the apparatus, but these cleaning water may be heated using an external heater.

1: Tableware washing device, 2: Conveyor (conveyance unit), 3: Rough washing unit (main washing unit), 4: Detergent washing unit (main washing unit), 5: Rinse washing unit, 8: Control unit, 10A: Entrance Buffer chamber, 10B: Cleaning chamber, 10a: Discharge port, 10b: Discharge duct, 10c: Steam guide plate, 12: Transport passage, 11: Inlet, 11a: First entrance curtain (input curtain), 11b: Second entrance curtain , 13: outlet, 13a: outlet curtain, 21: chain belt, 22: driven roller, 23: driving roller, 24: driving belt, 25: driving motor, 31: rough cleaning nozzle, 32: rough cleaning water storage tank, 33 : Pressure feed pump, 34: Water feed pipe, 36: Water feed port, 41: Detergent washing nozzle, 42: Detergent washing water storage tank, 43: Pressure feed pump, 44: Water feed pipe, 46: Water feed port, 48: Heater, 51A: Rinse Cleaning nozzle, 1B: Finish washing nozzle, 52: Rinse washing water storage tank, 53: Pressure feed pump, 54, 54A, 54B: Water feed pipe, 55A, 55B: Adjustment valve, 56: Water supply port, 58: Heater, 61: Injection nozzle, 62 : Spray port, 63: Suction port, 65: Blower, 80: Strainer (reflective member), 81, 81 ′: Main body part, 82: Frame part, 83: Through hole, 84: Reflector plate (reflective member), 71: Water pipe, 72: heat exchanger, 73a: exhaust fan, 73b: exhaust port, 74: flow rate adjusting valve, 75: on-off valve, 76, 77: water return inclined plate, A: air, w1: rough washing water, w2 : Detergent wash water, w3: Rinse wash water, w4: Clean water (finish wash water), P: Tableware

Claims (5)

A dishwasher for washing dishes,
The dishwashing apparatus, a transport unit for transporting tableware from the entrance to the outlet of the dishwashing apparatus,
A main cleaning unit that cleans the tableware transported by the transport unit, and a rinse cleaning unit that rinses and cleans the tableware cleaned by the main cleaning unit and transported by the transport unit;
At least one of the main washing section or the rinse washing section is for washing dishes with heated washing water,
The rinsing cleaning unit includes a blowing port that blows air on the conveyed tableware, a suction port that sucks air in the rinsing cleaning unit, and a blower that sucks air from the suction port and pressure-feeds the sucked air to the blowing port. And a dishwashing apparatus.   2. The dishwashing apparatus according to claim 1, wherein the suction port is provided in the vicinity of the outlet of the dishwashing apparatus.   The dish washing apparatus according to claim 2, wherein the rinse cleaning unit includes a guide member that guides air on the inlet side to the suction port from the suction port in the rinse cleaning unit.   The said rinse washing | cleaning part is provided with the reflection member which reflects the air discharge | released from the said spraying port under the said conveyance part, The dishwashing apparatus as described in any one of Claims 1-3 characterized by the above-mentioned. The rinsing unit is a rinsing nozzle that sprays rinsing water on the tableware conveyed by the conveying unit;
On the outlet side of the dish washing apparatus from the rinse washing nozzle, a finish washing nozzle that blows finishing washing water that is clean water onto the tableware conveyed by the conveying unit;
Rinse washing water and finish washing water sprayed on the tableware are collected, a storage tank for storing the recovered cleaning water, and the cleaning water stored in the storage tank are pumped to the cleaning nozzle as the rinse cleaning water. A pumping section,
The tableware washing apparatus according to any one of claims 1 to 4, wherein the spray port is provided between the rinse washing nozzle and the finish washing nozzle.

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