CN105266740B - A kind of dishwasher water saving method and dishwasher - Google Patents

Abstract

The invention relates to the technical field of household appliances, in particular to a water saving method for dishwashers, a water saving method for dishwashers, comprising a water softener, the water softener comprising a salt cavity for storing saturated salt water and a In the resin cavity for storing resin, a pipeline is communicated between the salt cavity and the resin cavity, and a one-way valve is arranged on the pipeline. The set regeneration rated value Q is compared, and according to the comparison result, it is judged whether to control the water softener to perform the regeneration operation. Also disclosed is a dishwasher, which adopts the method for saving water in the dishwasher. The traditional dishwasher is regenerated after each washing program, and changed to a separate regeneration program module, and the regeneration is performed after the water intake of the dishwasher reaches the rated value of the water softener, so as to achieve the purpose of reducing the water consumption of the dishwasher .

Description

A kind of dishwasher water saving method and dishwasher

technical field

The invention relates to the technical field of household appliances, in particular to a water-saving method for a dishwasher and a dishwasher.

Background technique

At present, a water softening device has been introduced into the dishwasher field, which absorbs calcium and magnesium ions in the water body through the resin in the water softener, reduces the hardness of the water, ensures that the tableware is washed with soft water, and reduces the formation of scale. The water softener usually consists of a salt cavity and a resin cavity, both of which are controlled by solenoid valves to conduct and isolate the cavity.

The regeneration process of the water softener is as follows: after the resin in the water softener replaces the calcium and magnesium ions in the water, the calcium and magnesium ions are adsorbed in the resin and gradually reach saturation. After saturation, the calcium and magnesium ions can no longer be absorbed. The solenoid valve of the resin cavity is opened, and the NaCl solution in the salt cavity enters the resin cavity through the external water inlet, and the sodium ions replace the calcium and magnesium ions on the resin and then discharge with the water to achieve the regeneration of the water softener.

In the prior art, by setting the regeneration action of the water softener in the program, as shown in Figure 1 (flow chart of the existing washing program), the regeneration of the water softener must be carried out before the end of each washing program, and in the final stage of rinsing. All of them carry out the regeneration of the water softener. Figure 2 shows the sequence diagram of the existing washing program. The water consumption of each regeneration is about 1-2L, which makes the water consumption of the whole machine on the high side.

SUMMARY OF THE INVENTION

The purpose of the present invention is to propose a water-saving method for a dishwasher and a dishwasher. The traditional dishwasher is regenerated after each washing program, and is changed to a separate regeneration program module, and the water in the dishwasher reaches water softening. The rated value of the dishwasher is then regenerated, so as to achieve the purpose of reducing the water consumption of the dishwasher.

For this purpose, the present invention adopts the following technical solutions:

A water-saving method for a dishwasher, comprising a water softener, the water softener comprising a salt cavity for storing saturated brine and a resin cavity for storing resin, and a pipeline is communicated between the salt cavity and the resin cavity , the pipeline is provided with a one-way valve, the method is to compare the cumulative water intake Q1 entering the resin cavity with the regeneration rated value Q set by the water softener, and determine whether to control the water softener to regenerate according to the result of the comparison operate.

The initial value of the cumulative water inflow Q1 is Q0, and the cumulative water inflow Q1 is an accumulated value obtained by accumulating the water inflow of the resin cavity each time after the cumulative water inflow Q1 is equal to Q0.

Among them, if the accumulated water intake Q1 ≥ the regeneration rated value Q, the water softener will perform the regeneration operation; if Q1<Q, the regeneration operation will not be performed.

Among them, after the regeneration operation is completed, the accumulated water intake Q1 is reassigned to Q0.

The value of the regeneration rated value Q is adjustable, because the hardness of the water body is different in different regions and different water sources, and the corresponding regeneration rated value is also different. It is necessary for the user to adjust the water hardness according to the local water hardness when the machine is turned on for the first time. Set according to the recommended setting range in the manual.

A plurality of Q value selection keys for different water hardnesses are set on the operation panel of the dishwasher, and the user selects the regeneration rated value Q by pressing the Q value selection keys corresponding to the water hardness used by the user.

The cumulative influent quantity Q1 can be obtained through the flow meter installed in the water inlet pipeline.

Or the cumulative water intake Q1 can be obtained through the control unit of the dishwasher, the water level switch and the water inlet valve connected to the control unit.

A dishwasher adopts the above-mentioned method for saving water in a dishwasher.

The beneficial effects of the invention are: the regeneration of the traditional water softener needs to be carried out at the end of each dishwasher program. At this time, the water softener does not reach a saturated state, and the dishwasher consumes 1-2L of water for each regeneration action. , resulting in higher water consumption of the whole machine. In the invention, the regeneration rated value Q of the softened water quantity of the water softener and a separate regeneration program module are set in the computer board during design, and the regeneration of the water softener is performed when the accumulated water intake Q1 of the water softener reaches the upper limit of the Q value. The regeneration rating Q value of the softened water volume of the water softener used in the dishwasher is set to 60L, and one regeneration is usually performed only after 5 dishwasher programs are performed, which greatly reduces the water consumption of the dishwasher.

Description of drawings

Fig. 1 is the flow chart of the washing procedure of the existing dishwasher;

Fig. 2 is the sequence diagram of the washing program of the existing dishwasher;

FIG. 3 is a flow chart of the water saving method for a dishwasher according to the present invention.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

As shown in FIG. 3, a water saving method for a dishwasher includes a water softener, the water softener includes a salt cavity for storing saturated brine and a resin cavity for storing resin, the salt cavity and resin There is a pipeline connected between the cavities, and a one-way valve is arranged on the pipeline. The method is to compare the cumulative water inflow Q1 entering the resin cavity with the regeneration rated value Q set by the water softener, and judge whether or not according to the result of the comparison. Control the water softener for regeneration.

The concentrated brine solution stored in the salt cavity is used to replace calcium and magnesium ions in the resin cavity, and the one-way solenoid valve conducts conduction and isolation between the salt cavity and the resin cavity.

Specifically, the initial value of the cumulative water inflow Q1 is Q0, and the cumulative water inflow Q1 is the value of each time after the cumulative water inflow Q1 is equal to Q0 and before the next cumulative water inflow Q1 is restored to the initial value Q0. The accumulated value of the water inflow into the resin cavity.

If the accumulated water intake Q1 ≥ the regeneration rated value Q, the water softener will perform regeneration operation; if Q1<Q, regeneration operation will not be performed. After the regeneration operation is completed, the accumulated water intake Q1 is reassigned to Q0.

The value of the regeneration rated value Q can be a fixed value or can be adjusted, because the hardness of the water body is different in different regions and different water sources, and the corresponding regeneration rated value is also different. The setting of the rated value Q requires the user to set it according to the local water hardness and according to the recommended setting range in the manual when the machine is turned on for the first time.

Preferably, a basic regeneration rated value Q is set in the factory settings, and the user can set the value of the regeneration rated value Q by himself or herself according to the hardness value of the local water through the control buttons of the control panel after the power is turned on.

Alternatively, for the convenience of the user, Q value selection keys for different water hardnesses can also be set on the operation panel of the dishwasher, and the user can select the regeneration rated value Q corresponding to the water hardness used by the user by pressing the Q value selection key.

The cumulative influent quantity Q1 can be obtained through the flow meter installed in the water inlet pipeline.

Or the cumulative water intake Q1 can be obtained through the control unit of the dishwasher, the water level switch and the water inlet valve connected to the control unit.

The present invention also provides a dishwasher, which adopts the above-mentioned method for saving water in the dishwasher.

In specific implementation, reassigning the cumulative water inflow Q1 to Q0 is the end of a water-saving regeneration program cycle, and then starts the next cycle. The value of the cumulative water inflow Q1 is not affected by the completion of washing and the shutdown of the dishwasher or Reboot to clear.

The following is a comparison of the specific test data:

The single water consumption of the traditional dishwasher washing program is 12L, of which 1.5L is consumed for each salt flush. Calculated according to 280 cycles per year, the annual water consumption is 12*280=3360L.

In the specific implementation, the regeneration rating of the water softener is set to Q=60L. For the dishwasher using the dishwasher water saving method program, when the dishwasher performs the washing program, the water consumption per washing (excluding the Salt flushing) is 10.5L, and the regeneration rating of the water softener is Q after five washing procedures.

At this time, the difference N between Q1 and Q is 0, and the water softening regeneration program is started, and a single salt flushing consumes 1.5L of water, that is, the first four procedures consume 10.5L of water, the fifth time consumes 12L of water, and a single water consumption The levels were all (10.5*4+12)/5=10.8L.

Calculated according to 280 cycles per year, the annual water consumption is 10.8*280=3024L, which can save 336L of water per year compared with the traditional dishwasher water softening regeneration program.

To sum up, the regeneration of the traditional water softener needs to be carried out at the end of each dishwasher program. At this time, the water softener has not reached the saturation state, and the dishwasher consumes 1-2L of water for each regeneration action, resulting in The water consumption of the whole machine is relatively high.

In the invention, the regeneration rated value Q of the softened water quantity of the water softener and a separate regeneration program module are set in the computer board during design, and the regeneration of the water softener is performed when the accumulated water intake Q1 of the water softener reaches the upper limit of the Q value. The regeneration rating Q value of the water softener used in the dishwasher is set to 60L, and one regeneration is usually performed only after 5 dishwasher programs are performed, which greatly reduces the water consumption of the dishwasher.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these methods will all fall within the protection scope of the present invention.

Claims (5)

1. a kind of dish-washing machine water-saving method, including water demineralizer, the water demineralizer includes the salt chamber for storing saturated brine With the resin cavity for storing resin, it is communicated with pipeline between the salt chamber and resin cavity, check valve is provided on pipeline, it is special Sign is that the dish-washing machine sets the regeneration rated value Q of water demineralizer softening water used in computer board and individually regenerates Program module, the method are the regeneration rated value Q of the accumulation inflow Q1 and water demineralizer setting by that will enter resin cavity It compares, and judges whether that controlling water demineralizer carries out regenerative operation according to the result of the comparison；

The accumulation inflow Q1 initial value is Q0, the accumulation inflow Q1 be will be when accumulating inflow Q1 equal to Q0 after The inflow of resin cavity each time carry out cumulative accumulated value, the numerical value of the accumulation inflow Q1 is complete not because of washing At the shutdown with dish-washing machine or restarts and remove；After regenerative operation, the accumulation inflow Q1 is assigned a value of Q0 again；

The numerical value of the regeneration rated value Q be it is adjustable, be set on the operation panel of dish-washing machine multiple for different water bodys The Q value selection key of hardness, user is by pressing Q value selection key corresponding with its water body hardness used to select to regenerate rated value Q.

2. dish-washing machine water-saving method according to claim 1, which is characterized in that if accumulation inflow Q1 >=regeneration rated value When Q, water demineralizer carries out regenerative operation；If Q1 < Q, then without regenerative operation.

3. dish-washing machine water-saving method according to claim 1, which is characterized in that pass through the flow being mounted in inlet pipeline Meter obtains accumulation inflow Q1.

4. dish-washing machine water-saving method according to claim 1, which is characterized in that by the control unit of dish-washing machine and with control Water level switch that unit processed is connected, inlet valve obtain accumulation inflow Q1.

5. a kind of dish-washing machine, which is characterized in that use the described in any item dish-washing machine water-saving methods of the claims 1-4.