CN106264403A - A kind of dish-washing machine heat-exchange system and dish-washing machine - Google Patents

Abstract

The invention discloses a dishwasher heat exchange system and relates to the technical field of dishwashers. The dishwasher heat exchange system includes an inner container, a hot water tank, a cold water tank, a water inlet pipe, a drain pipe and a washing pump, the water inlet of the inner container and the water inlet of the cold water tank are respectively connected with the water inlet pipe, and the water outlet of the inner container is connected with the water inlet of the cold water tank. The water outlet of the hot water tank is connected with the drain pipe respectively; the hot water water supply port of the inner tank is connected with the water inlet of the washing pump, and the water outlet of the washing pump is respectively connected with the spray pipe extending into the inner tank and the hot water tank. The water tank is installed in the cold water tank, and the water outlet of the cold water tank is connected with the inner tank. The application also discloses a dishwasher including the heat exchange system. This application can inject the hot water of the inner tank in the main washing stage into the hot water tank to exchange heat with the cold water stored in the cold water tank, and the water treated by heat exchange enters the inner tank again for hot bleaching and washing, which reduces the hot bleaching process The heating time of the medium heater reduces energy consumption, saves energy, and reduces use costs.

Description

A kind of dishwasher heat exchange system and dishwasher

technical field

The invention relates to the technical field of dishwashers, in particular to a dishwasher heat exchange system and a dishwasher equipped with the dishwasher heat exchange system.

Background technique

In recent years, whether consumer products are energy-saving, environmentally friendly and low-carbon has attracted more and more attention from consumers. The energy consumption value of products in the dishwasher industry has also been reduced one after another. The innovation points of various brands focus on how to reduce power consumption. The main power consumption link is the heating stage of the washing pump, mainly for the main washing and heating and drying stages. Usually, the power of the washing pump for dishwashers is 1200W-1800W. At present, the methods to reduce power consumption in the industry are mostly to take auxiliary measures to reduce the heating time Or reduce the heating temperature point, such as using a fan to dry the temperature point of the last heat drift, because the power of the motor driving the fan is very low, only tens of watts, so the power consumption of the heater can be reduced to achieve the purpose of reducing the power consumption of the whole machine , or use a chemical drying method to absorb the water vapor in the whole machine with a medium that can absorb steam, so as to achieve the drying effect.

Existing solutions to reduce power consumption only reduce or reduce power consumption during the implementation process, not without power consumption. For example, if the fan is dry, the power consumption of the motor driving the fan is small, which reduces power consumption, but still generates power consumption. . At present, all products in the industry will directly drain the hot water (usually 55-65 degrees Celsius) after the main wash is completed, and this part of the hot water for the main wash cannot be recovered, which requires increased power consumption to achieve the final result. The water temperature of the thermal bleaching heats up the temperature point, which increases the waste of energy.

Based on the above description, there is an urgent need for a new heat exchange system for dishwashers to solve the problem of existing dishwashers that the hot water cannot be recovered during the washing process, which requires increased power consumption to reach the water temperature heating point of the last hot rinse, resulting in the overall The problem of high energy consumption.

Contents of the invention

An object of the present invention is to propose a dishwasher heat exchange system, which can recover hot water during the washing process, make full use of the heat energy resources recovered from hot water, save energy, reduce energy waste, and reduce the use of cost.

Another object of the present invention is to provide a dishwasher, which has the above-mentioned dishwasher heat exchange system, and the whole machine of the dishwasher has low energy consumption and low use cost.

For reaching this purpose, the present invention adopts following technical scheme:

The invention provides a dishwasher heat exchange system, comprising an inner tank, a hot water tank, a cold water tank, a water inlet pipe, a drain pipe and a washing pump, the water inlet of the inner tank and the water inlet of the cold water tank are respectively connected to the The water inlet pipe is connected, and the drain port of the inner tank and the drain port of the hot water tank are respectively connected with the drain pipe;

The hot water supply port of the inner tank is connected with the water inlet of the washing pump, and the water outlet of the washing pump is respectively connected with the spray pipe extending into the inner tank and the hot water tank, and the hot water tank is installed in the cold water tank In the casing, the water outlet of the cold water tank is connected with the inner tank.

As a preferred solution of the above-mentioned dishwasher heat exchange system, it also includes a first water diversion valve, the water inlet interface of the first water diversion valve is connected to the water inlet pipe, and a water outlet interface of the first water diversion valve is connected to the inlet of the cold water tank. The water outlet is connected, and the other water outlet is connected with the water inlet of the inner tank.

As a preferred solution of the above-mentioned dishwasher heat exchange system, the spray pipe includes a first spray pipe located below and a second spray pipe located in the middle, and the first spray pipe and the second spray pipe The tubes all extend into the inner tank.

As a preferred solution of the above-mentioned dishwasher heat exchange system, it also includes a second water diversion valve, the water inlet port of the second water diversion valve is connected to the water outlet of the washing pump, and the second water diversion valve The first water outlet interface of the second water diversion valve is connected to the first spray pipe, the second water outlet interface of the second water diversion valve is connected to the second spray pipe, and the third water outlet interface of the second water diversion valve is connected to the hot water tank .

As a preferred solution of the above dishwasher heat exchange system, it also includes a third water diversion valve, the first water inlet port of the third water diversion valve is connected to the drain port of the inner container, and the third water diversion valve The second water inlet port is connected to the drain port of the hot water tank, the water outlet port of the third water diversion valve is connected to a drain pipe, and a drain pump is installed on the drain pipe.

As a preferred solution of the above dishwasher heat exchange system, a solenoid valve is installed on the pipe connecting the inner tank and the water outlet of the cold water tank.

The present invention also provides a dishwasher, including the dishwasher heat exchange system described in any one of the above items.

The beneficial effects of the present invention are:

The invention provides a dishwasher heat exchange system. The dishwasher heat exchange system can inject the hot water in the inner tank in the main washing stage into the hot water tank and exchange heat with the cold water stored in the cold water tank. The treated water enters the inner tank again for hot bleaching and washing. Due to the cold and heat exchange, the temperature of the cold water rises significantly, which reduces the heating time of the heater during the hot bleaching process and reduces energy consumption. The invention can recycle the hot water in the washing process, fully utilize the heat energy resources of the recovered hot water, save energy, effectively reduce energy waste, and greatly reduce the use cost.

The present invention provides a dishwasher. The dishwasher includes the above-mentioned dishwasher heat exchange system. The whole dishwasher has low energy consumption and low use cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to the content of the embodiment of the present invention and these drawings without any creative effort.

Fig. 1 is a schematic structural view of a dishwasher heat exchange system provided by a preferred embodiment of the present invention.

In the picture:

1. Inner container; 2. Hot water tank; 3. Cold water tank; 4. Inlet pipe; 5. Drainage pipe; 6. Drainage pump; 7. First water diversion valve; 8. Second water diversion valve; Three-point water valve; 10. Washing pump; 11. First spray pipe; 12. Second spray pipe; 13. Solenoid valve.

detailed description

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

preferred embodiment

As shown in Figure 1, this embodiment proposes a more preferred heat exchange system for a dishwasher, which includes an inner tank 1, a hot water tank 2, a cold water tank 3, an inlet pipe 4, a drain Pipe 5, first water diversion valve 7, second water diversion valve 8, third water diversion valve 9 and washing pump 10. The water inlet of the inner bag 1 and the water inlet of the cold water tank 3 are respectively connected with the water inlet pipe 4, and the water outlet of the inner bag 1 and the water outlet of the hot water tank 2 are respectively connected with the drain pipe 5. The hot water supply port of the liner 1 is connected to the water inlet of the washing pump 10, and the water outlet of the washing pump 10 is respectively connected to the spray pipe and the hot water tank 2, wherein the spray pipe includes a first spray pipe 11 located below And the second shower pipe 12 located in the middle, the first shower pipe 11 and the second shower pipe 12 all extend into the inner container 1 . The hot water tank 2 is installed in the casing of the cold water tank 3, and the water outlet of the cold water tank 3 is connected with the inner tank 1.

In this embodiment, specifically, a solenoid valve 13 is installed on the pipeline connecting the water outlet of the cold water tank 3 and the inner tank 1 . The water inlet interface H of the first water diversion valve 7 is connected to the water inlet pipe 4, the water outlet interface I of the first water diversion valve 7 is connected to the water inlet of the cold water tank 3, and the water outlet interface J of the first water diversion valve 7 is connected to the inner tank 1 water inlet connection. The water inlet port A of the second water diversion valve 8 is connected to the water outlet of the washing pump 10, the first water outlet port B of the second water diversion valve 8 is connected to the first spray pipe 11, and the second water diversion valve 8 is connected to the first spray pipe 11. The water outlet port C is connected to the second spray pipe 12 , and the third water outlet port D of the second water diversion valve 8 is connected to the hot water tank 2 . The first water inlet port E of the third water diversion valve 9 is connected with the drain port of the inner tank 1, the second water inlet port F of the third water diverter valve 9 is connected with the drain port of the hot water tank 2, and the third water diverter valve The water outlet G of 9 is connected with the drain pipe 5, and the drain pump 6 is installed on the drain pipe 5.

The workflow of the heat exchange system of the present invention is specifically as follows:

Dishwasher washing programs are generally divided into four parts: pre-washing, main washing (heating washing), cold bleaching, and hot bleaching. When the washing program starts, water enters the inner tank 1 of the dishwasher, and water also enters the cold water tank 3 at the same time. At this time, the cold water in the cold water tank 3 exchanges heat with room temperature, and the entire heat exchange time is the total time of pre-wash and main wash.

The water for pre-washing and main washing is the same as the normal water inlet of the water inlet pipe 4, and the water flow direction is: water inlet pipe 4-the water inlet interface of the first water diversion valve 7-the water outlet interface of the first water diversion valve 7-inner tank 1. At this time, the water intake of the water inlet pipe 4 is carried out under the pressure of tap water. When the washing program is in progress, the washing pump 10 provides power, and the water flows through the second water diversion valve 8 and flows into the first spray pipeline respectively (the flow direction of the water path is: the water inlet port A of the second water diversion valve 8-the second water diversion valve 8 The first water outlet interface B-the first spray pipe 11) and the second spray pipeline (the flow direction of the water path is: the water inlet A of the second water diversion valve 8-the second water outlet C of the second water diversion valve 8 - Second shower pipe 12).

After the main wash in the second stage of the washing procedure, the hot water for the main wash with a temperature of about 55 degrees Celsius is not discharged, it is injected into the hot water tank 2 and stored in the cold water tank 3 through the washing pump 10 and the second water diversion valve 8 The cold water is used for heat exchange, and the water flow direction is: liner 1 - washing pump 10 - water inlet port A of the second water diversion valve 8 - third water outlet port D of the second water diversion valve 8 - hot water tank 2.

When the washing process enters the third stage of cold bleaching, the water inlet of the inner tank 1 is the normal water inlet of the water inlet pipe 4, and the water flow direction is: water inlet pipe 4-the water inlet interface H of the first water diversion valve 7-the first water diversion The water outlet interface J-inner tank 1 of the valve 7. In the stage of cold rinsing and washing, the hot water stored in the hot water tank 2 exchanges heat with the hot water stored in the cold water tank 3 at the beginning of the program.

After the cold bleaching program ends, the hot bleaching program starts. At this time, the water that has undergone heat exchange treatment flows directly into the inner tank 1 of the dishwasher through the electromagnetic valve 13 under the action of gravity, and performs the hot bleaching program washing. Since the temperature rise of the cold water after the cold and heat exchange is obvious, the heating time of the heater during the thermal bleaching process is reduced, and the energy consumption is reduced.

After the washing program is finished, the water in the hot water tank 2 is discharged from the drain pipe 5 through the pipeline through the third water diversion valve 9 and the drain pump 6, and the water flow direction is: hot water tank 2-the second inlet of the third water diversion valve 9 Water interface F—water outlet interface of the third water diversion valve 9—drainage pump 6—drainage pipe 5 . At the end of the pre-washing, cold bleaching and hot bleaching procedures, the drainage of the inner tank 1 is discharged through the pipeline through the third water diversion valve 9 and the drainage pump 6, and then discharged from the drain pipe 5, and the water flow direction is: inner tank 1-the third water diversion valve The first water inlet interface E of 9-the water outlet interface G of the third water diversion valve 9-the drain pump 6-the drain pipe 5.

After the hot water tank 2 is cleaned, the final hot bleach water can be programmed to pass through the washing pump 10, the water inlet port A of the second water diversion valve 8, the third water outlet port D of the second water diversion valve 8, and the hot water tank. 2. The second water inlet port F of the third water diversion valve 9, the water outlet port G of the third water diversion valve 9, the drain pump 6 and the drain pipe 5 are discharged.

The above-mentioned dishwasher heat exchange system can inject the hot water in the inner tank in the main washing stage into the hot water tank to exchange heat with the cold water stored in the cold water tank, and the water treated by heat exchange enters the inner tank again for hot rinsing and washing. Due to the cold and heat exchange, the temperature of the cold water rises significantly, which reduces the heating time of the heater during the bleaching process, fully utilizes the heat energy resources of the hot water in the recovery washing process, saves energy, reduces energy waste, and reduces the use cost.

The present invention also proposes a dishwasher, including the dishwasher heat exchange system described in any one of the above items. The whole machine of the dishwasher has low energy consumption and low use cost.

"First", "second", "third" and so on in the present invention are only used to distinguish in description and have no special meaning.

The present invention is not limited to the connection form of the above-mentioned heat exchange pipelines, but can also reduce some parts or add additional parts or change the connection form, and can make full use of the heat energy resources recovered from hot water in the washing process, and the technical solutions for saving energy should be included in this within the scope of the application.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (7)

1. A dishwasher heat exchange system, characterized in that it comprises an inner container (1), a hot water tank (2), a cold water tank (3), a water inlet pipe (4), a drain pipe (5) and a washing pump ( 10), the water inlet of the inner tank (1) and the water inlet of the cold water tank (3) are respectively connected with the water inlet pipe (4), and the water outlet of the inner tank (1) and the hot water tank (2) The drain outlets are connected with the drain pipe (5) respectively; The hot water supply port of the inner tank (1) is connected with the water inlet of the washing pump (10), and the water outlet of the washing pump (10) is respectively connected with the spray pipe extending into the inner tank (1) and the hot water The tank (2) is connected, the hot water tank (2) is installed in the casing of the cold water tank (3), and the water outlet of the cold water tank (3) is connected with the inner tank (1). 2. The dishwasher heat exchange system according to claim 1, further comprising a first water diversion valve (7), the water inlet port of the first water diversion valve (7) is connected to the water inlet pipe (4) , a water outlet of the first water diversion valve (7) is connected with the water inlet of the cold water tank (3), and the other water outlet is connected with the water inlet of the inner tank (1). 3. The dishwasher heat exchange system according to claim 1 or 2, characterized in that the spray pipe comprises a first spray pipe (11) located below and a second spray pipe (12) located in the middle ), the first shower pipe (11) and the second shower pipe (12) all extend into the inner bag (1). 4. The dishwasher heat exchange system according to claim 2, further comprising a second water diversion valve (8), the water inlet interface of the second water diversion valve (8) is connected with the washing pump (10) is connected to the water outlet, the first water outlet interface of the second water diversion valve (8) is connected to the first spray pipe (11), and the second water outlet interface of the second water diversion valve (8) is connected to the water outlet of the second water diversion valve (8). The second spray pipe (12) is connected, and the third water outlet port of the second water diversion valve (8) is connected with the hot water tank (2). 5. The dishwasher heat exchange system according to claim 4, further comprising a third water diversion valve (9), the first water inlet interface of the third water diversion valve (9) and the inner tank (1) is connected to the drain port, the second water inlet port of the third water diversion valve (9) is connected to the drain port of the hot water tank (2), and the water outlet port of the third water diversion valve (9) is connected to the drain port of the hot water tank (2). The drainage pipe (5) is connected, and the drainage pump (6) is installed on the described drainage pipe (5). 6. The dishwasher heat exchange system according to claim 1, characterized in that a solenoid valve (13) is installed on the pipe connecting the inner tank (1) and the water outlet of the cold water tank (3). 7. A dishwasher, characterized by comprising the dishwasher heat exchange system according to any one of claims 1-6.