ES2565537T3 - Ergonomic professional dishwasher - Google Patents

Abstract

Ergonomic professional dishwasher (1) comprising a casing (2) with an internal washing chamber (3), in which the crockery (20) to be washed is contained, said crockery (20) being arranged on shelves (4) installed at certain heights, said shelves (4) being associated with rotors or washing nozzles (21), which have holes and slots (22) to pass the water that comes from at least one storage tank (23) and taken from the water network, said tank (23) being located in the lower part of the dishwasher (1) and being equipped with at least one heating element (RV) and at least one discharge pump (M4PS), in which said tank enters storage (23) and said washing rotors (21) there are at least two pumps (AP, BP, AP1, AP2, BP1, BP2, M1, M2, M1A, M2A), each of which is connected, by pipes , to at least one washing rotor (21), which is located in a respective section or zone (SX, DX, SS, SD, IS, ID) of the washing chamber (3), said sections or zones (SX, DX, SS, SD, IS, ID) being superimposed on and/or adjacent to each other and at least one of said washing rotors (21), which is located in a first section or zone (SX, DX, SS, SD, IS, ID) of the washing chamber (3), being actuated alternately to at least one of said washing rotors (21), which is located in a second zone (SX, DX, SS, SD, IS, ID) of the washing chamber (3), characterized in that at least two pumps (AP1, AP2, BP1, BP2) connect with at least two washing rotors ( 21) by means of relative connectors (RD) and each pump (AP1, AP2, BP1, BP2) is thus connected to at least two washing rotors (21), said at least two washing rotors (21) being placed in a same section or area (SX, DX, SS, SD, IS, ID) of said washing chamber (3).

Description

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prewash, wash, pre-rinse, rinse and condensation after rinse.

In particular, the prewash step initially involves the loading of the tank 23 through the activation of the hot water divergent solenoid Y1 (at a maximum temperature of about 55 ° C) passing through the check valve DW and the AD softeners .

Once the water level has been reached for which the volume of water in the tank 23 is equal to L2 (value measured by means of a probe and shown in the attached figure 7), the washing pump M1 is activated for a predetermined time t1 or M2, depending on whether the wash is programmed in the right DX or left SX zone of chamber 3, that is, the M1A or M2A pump if the pump is programmed to wash less, then the M1 or M2 pump is disconnected and a time t2 set, at the end of which the pump M1A or M2A is activated (depending on the right or left zone of the chamber 3 affected by the washing) during time t1 and then disconnected (this alternation of activations and disconnections of the pumps it is also carried out for the remaining two wash pumps a preset number of times).

Meanwhile, the water load in the tank 23 continues and, when it reaches a level such that the volume of water reaches the value L1 (value measured by a linear pressure switch PL, shown in particular in Figure 7 attached), the solenoid valve Y1 It is deactivated.

During the loading of water in the tank 23 the resistance RV of the tank 23 is activated after having reached the level L2, and, for example, this is activated by placing the pump M2 as the first wash pump (the activation of a specific pump It depends, as mentioned, on the SS and / or SD and / or IS and / or ID load zone in which the wash cycle is chosen), the pump activation sequence is as follows:

- start pump M2 for a time t3;

- start pump M1 for a time t3;

-start pump M2A for a time t4;

- Start pump M1A for a time t4.

In addition, during that cycle of operation of the pumps a mode of activation and deactivation of the pumps is also switched on (soft start, soft stop: power modulation), so that they do not start and will not stop at maximum flow to optimize the water flow in the different wash nozzles 21.

The above sequence is repeated until a preset temperature value is reached for this prewash stage; to reach this temperature value, the sequence is repeated for a preset number of times for this stage, at the end of which the discharge pump M4PS is activated in order to empty the tank 23.

The washing phase initially provides for the loading of the tank 23 through the activation of the hot water solenoid Y1 (at a maximum temperature of about 55 ° C) passing through the check valve DW and the AD softeners.

Once the water level has been reached for which the volume of water in the tank 23 is equal to L2 (value measured by means of a probe and shown in the attached figure 7), the washing pump M1 is activated for a predetermined time t1 or M2, depending on whether the wash is programmed in the right DX or left SX zone of chamber 3, that is, the M1A or M2A pump if the pump is programmed to wash less, then the M1 or M2 pump is disconnected and a time t2 set, at the end of which the pump M1A or M2A is activated (depending on the right or left zone of the chamber 3 affected by the washing) during time t1 and then disconnected (this alternation of activations and disconnections of the pumps it is also carried out for the remaining two wash pumps for a preset number of times).

Meanwhile, the water charge in the tank 23 continues and, when it reaches a level such that the volume of water reaches the value L1 (value measured by a probe and shown in Figure 7 attached), the solenoid valve Y1 is deactivated .

During the loading of water in the tank 23, the resistance RV of the tank 23 is activated, after having reached the level L2, and, for example, this is activated by placing the pump M2 as the first wash pump (the activation of a Specific pump depends, as mentioned, on the SS and / or SD and / or IS and / or ID load zone in which the wash cycle is chosen), the pump activation sequence is as follows:

- start pump M2 for a time t3;

- start pump M1 for a time t3;

-start pump M2A for a time t4;

- Start pump M1A for a time t4.

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In addition, during that cycle of operation of the pumps a mode of activation and deactivation of the pumps is also switched on (soft start, soft stop: power modulation), so that they do not start and will not stop at maximum flow to optimize the water flow in the different wash nozzles 21.

At a default temperature value for this washing phase, the detergent dispenser M5 is activated for a preset time and the above sequence is repeated until a predetermined temperature value is reached for this washing phase; to obtain this temperature value repeat the sequence for a preset number of times for this stage, at the end of which the discharge pump M4PS is activated to empty the tank 23, the solenoid valve Y1 is activated again to pass water heat through the DW check valve and AD softeners, through the BT battery for a t5 wash time of said BT condensation battery and, after this, the M4PS discharge pump is reactivated to drain the deposit 23.

The pre-clearing initially involves the loading of the tank 23 through the activation of the hot water solenoid Y1 (at a maximum temperature of about 55 ° C) passing through the check valve DW and the AD softeners.

Once the water level has been reached for which the volume of water in the tank 23 is equal to L2 (value measured by the linear pressure switch PL), the wash pumps are activated according to the sequence that follows (always placing, by way of example and indicative illustration, but not limitation, in which the pump M2 is activated as the first wash pump, as a consequence of the loading zone SS and / or SD and / or IS and / or ID of the chamber 3 in which choose to do the cycle):

- start pump M2 for a time t6;

- start pump M1 for a time t6;

- Start M2A pump for a time t6;

- Start M1A pump for a time t6.

In this phase, the RV resistance of the tank 23 is turned off and also the soft start and soft stop system of the pumps is disabled.

The sequence is repeated for a preset number of times for this prewash stage, at the end of which the M4PS discharge pump is activated for emptying the tank 23.

The rinse phase initially involves the loading of the tank 23 through the activation of the hot water solenoid Y1 (at a maximum temperature of about 55 ° C) passing through the check valve DW and the AD softeners.

Once the water level has been reached for which the volume of water in the tank 23 is equal to L2 (value measured by the linear pressure switch PL), the washing pump M1 or M2 is activated for a predetermined time t1, depending on whether the washing is programmed in the right zone DX or left SX of the chamber 3, that is, the pump M1A or M2A if the pump is programmed to wash less, then the pump M1 or M2 is disconnected and a fixed time t2 passes, then from which the M1A or M2A pump is activated (depending on the zone of the 3 DX or SX chamber affected by the washing) during time t1 and then disconnected (this alternation of activations and disconnections of the pumps is also carried out to the remaining two wash pumps for a preset rpm number).

Meanwhile, the water charge in the tank 23 continues and, when it reaches a level such that the volume of water reaches the value L1 (value measured by the linear pressure switch PL), the solenoid valve Y1 is deactivated.

During the loading of water in the tank 23 the resistance RV of the tank 23 is activated, after having reached the level L2, and, for example, this is activated by placing the pump M2 as the first wash pump (the activation of a pump specific depends, as mentioned, on the SS and / or SD and / or IS and / or ID load zone in which the wash cycle is chosen), the pump activation sequence is as follows:

- start pump M2 for a time t3;

- start pump M1 for a time t3;

-start pump M2A for a time t4;

- Start pump M1A for a time t4.

In addition, during that cycle of operation of the pumps a mode of activation and deactivation of the pumps is also switched on (soft start, soft stop: power modulation), so that they do not start and will not stop at maximum flow to optimize the water flow in the different wash nozzles 21.

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that the washing cycle is chosen), the pump activation sequence is as follows:

- start pump M2 for a time t3;

- start pump M1 for a time t3;

-start pump M2A for a time t4;

- Start pump M1A for a time t4.

In addition, during that cycle of operation of the pumps a mode of activation and deactivation of the pumps is also activated (soft start, soft stop: power modulation), so that they do not start and will not stop at maximum flow to optimize the water flow in the different wash nozzles 21.

At a temperature default value for this thermo-disinfection phase, the M11 fan is activated to cool the BT battery for the condensation of the vapors leaving the washing chamber 3, as well as the M9 rinse product dispenser for a period of time. preset and the previous sequence is repeated until a preset temperature value is reached for this thermo-disinfection phase, maintaining that temperature value (about 93 ° C) for a phase time (about 10 minutes).

The phase ends leaving the water in the tank 23 and the fan M11 off.

The condensation step after the thermo-disinfection always begins with the tank 23 filled with water left from the previous step and if there is no water in the tank the cycle is interrupted.

After a predetermined period of time t7, the divergent solenoid Y9 is activated during the entire phase, up to about 5 seconds after the end of that phase.

Then, the cold water solenoid valve Y4 is activated at a temperature of about 15-25 ° C and the water passes through the check valve DW and the water softeners AD and flows out of the condensation nozzles UGC, thus draining over the walls internal to the washing chamber 3, to condense the steam inside the chamber 3 itself with a longer timed sequence than the sequence expected in the condensation stage after rinsing; at this point, the M4PS discharge pump is activated for a predetermined time t8 to empty the tank 23 is reached if the maximum water level in the tank and the M4PS discharge pump is activated again in the final phase.

The plate heating cycle provides that initially the M4PS discharge pump is activated to empty the tank 23 as a precaution and then start the water charge in the tank by activating the hot water loading solenoid Y1, going to through the DW anti-reflux valve and AD softeners.

Once the water level has been reached for which the volume of water in the tank 23 is equal to L2 (value measured by the linear pressure switch PL), the washing pump M1 or M2 is activated for a predetermined time t1, depending on whether the wash programmed on the right DX or left SX of chamber 3, that is, the pump M1A or M2A if the pump is programmed to wash less, then disconnects the pump M1 or M2 and passes a fixed time t2, after which it is activated the pump M1A or M2A (depending on the zone of the 3 DX or SX chamber affected by the washing) during time t1 and then disconnects (this alternation of activations and disconnections of the pumps is also carried out for the remaining two pumps wash for a preset rpm number).

Meanwhile, the water charge in the tank 23 continues and, when it reaches a level such that the volume of water reaches the value L1 (value measured by a probe and shown in Figure 7 attached), the solenoid valve Y1 is deactivated .

During the water load, the RV resistance of the tank 23 is activated, after having reached the level L2, for example, which is activated by placing the pump M2 as the first wash pump (the activation of a specific pump depends, as It was mentioned, from the loading area SS and / or SD and / or IS and / or ID in which the washing cycle is chosen), the activation sequence of the pumps is as follows:

- start pump M2 for a time t3;

- start pump M1 for a time t3;

-start pump M2A for a time t4;

- Start pump M1A for a time t4.

In addition, during that cycle of operation of the pumps a mode of activation and deactivation of the pumps is also switched on (soft start, soft stop: power modulation), so that they do not start and will not stop at maximum flow to optimize the water flow in the different wash nozzles 21.

The pump activation sequence is repeated until a preset temperature value is reached for this plate heating cycle, after which the sequence is not repeated, but, after a predetermined time interval t7, the diverse solenoid is activated. Y9 (which is deactivated after the end of that phase) and solenoid valve Y4, from which water enters at a temperature of about 15-25 ° C; which passes through the check valve DW and the softeners AD and, coming out of the condensation nozzles UGC, drains onto the internal walls of the washing chamber 3, condensing the steam inside the chamber 3 itself with a timed sequence

At this point, the M4PS discharge pump is activated for a predetermined time t8 for emptying the tank 23 is reached if the maximum water level in the tank and the M4PS discharge pump is activated again at the end of the cycle.

The self-cleaning cycle of the dishwasher initially involves the activation of the M4PS discharge pump to empty the tank 23 as a precaution and then starts the water charge in the tank through the activation of the hot water supply solenoid Y1, passing to through the DW check valve and AD water softeners.

Once the water level has been reached for which the volume of water in the tank 23 is equal to L2 (value measured by means of a probe and shown in the attached figure 7). the washing pump M1 or M2 is activated for a predetermined time t1, depending on whether the washing is programmed in the right zone DX or left SX of the chamber 3, that is, the pump M1A or M2A if the pump is programmed to wash less, then disconnect the pump M1 or M2 and spend a fixed time t2, at the end of which the pump M1A or M2A is activated (depending on the right or left area of the chamber 3 affected by the washing) during time t1 and then it is disconnected (this alternation of activations and disconnections of the pumps is also carried out for the remaining two pumps that wash for a number of times of prefase).

Meanwhile, the water charge in the tank 23 continues and, when it reaches a level such that the volume of water reaches the value L1 (value measured by the linear pressure switch PL), the solenoid valve Y1 is deactivated.

During the water load, the RV resistance of the tank 23 is activated after having reached the level L2, and, for example, it is activated by placing the pump M2 as the first wash pump (the activation of a specific pump depends, as It was said, of the SS and / or SD and / or IS and / or ID loading zone in which the washing cycle is chosen), the pump activation sequence is as follows:

- start pump M2 for a time t3;

- start pump M1 for a time t3;

-start pump M2A for a time t4;

- Start pump M1A for a time t4.

In addition, during that cycle of operation of the pumps a mode of activation and deactivation of the pumps is also activated (soft start, soft stop: power modulation), so that they do not start and will not stop at maximum flow to optimize the water flow in the different wash nozzles 21.

At a pre-set temperature value, the sanitizer dispenser M10 is activated during a phase time and, after this, the activation sequence of the pumps is repeated until a pre-set temperature value is reached for this self-cleaning turn, after which sequence is not repeated, but, after a predetermined time interval t7, the diverse solenoid Y9 is activated (which is deactivated after the end of that phase) and the solenoid valve Y4, from which water enters a temperature from about 15-25 ° C; passing through the check valve DW and the water softeners AD and, coming out of the condensation nozzles UGC, drains onto the internal walls of the washing chamber 3, condensing the steam inside the chamber 3 itself with a timed sequence

At this point, the M4PS discharge pump is activated for a predetermined time t8 to empty the tank 23 if the maximum water level in the tank is reached and the M4PS discharge pump is activated again.

After the emptying of the tank 23, the tank charge 23 starts again through the activation of the hot water solenoid Y1, which passes through the check valve DW and the softeners AD.

Once the water level has been reached for which the volume of water in the tank 23 is equal to L2 (value measured by the linear pressure switch PL), the wash pumps are activated according to the sequence that follows (always placing, by way of example and indicative, but not limiting, illustration in which the pump M2 is activated as the first wash pump, as a consequence of the loading zone SS and / or SD and / or IS and / or ID of the chamber 3 in which it is choose to do the cycle):

- start pump M2 for a time t6;

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Claims (1)

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