Heat recovery system applied to dish washing machine

Abstract

A heat recovery system using a dish-washing machine comprises a dish-washing reservoir, a heating water tank and a water inlet unit. The dish washing reservoir comprises a reservoir main body, a first heater, a water inlet and a water outlet. The heating water tank comprises a heating water tank body, a second heater, a heating water tank water inlet and a heating water tank water outlet. The water inlet unit comprises a water inlet section, a transmission section and a water outlet section. One end of the transmission section is connected with the water inlet, and the other end of the transmission section is connected with the water outlet. The transmission section comprises a plurality of U-shaped pipes which are connected end to end, and the outer contour of each U-shaped pipe is U-shaped, so that the transmission time of clear water in the reservoir main body is prolonged. According to the heat recovery system applying the dish-washing machine, injected clear water is preheated through waste water, the use cost is effectively saved, the energy consumption of the dish-washing machine is effectively reduced, and the dish-washing machine is more energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model belongs to the technical field of dishwashers, in particular to a heat recovery system applied to dishwashers. Background Art

[0002] A dishwasher is a device that automatically washes tableware such as bowls, chopsticks, plates, dishes, knives, forks, etc. The fully automatic dishwashers on the market can be divided into two categories: household and commercial. Household fully automatic dishwashers are only suitable for families, and they are mainly cabinet-type, table-top, sink-integrated and integrated.

[0003] Dishwashers consume a lot of energy during the cleaning and drying process, especially in the water heating process. Most dishwashers are equipped with heating elements to heat the water entering the dishwasher to a certain temperature for effective cleaning and disinfection. The water injected into the current dishwasher is directly conducted to the heating element and heated by the heating element, but this process not only consumes electricity, but also increases energy consumption and cleaning costs if the heating time is too long or the heated water temperature is too high. Utility Model Content

[0004] In view of this, the utility model provides a heat recovery system for a dishwasher which can save use cost and meet industrial needs.

[0005] A heat recovery system for a dishwasher includes a dishwashing water reservoir, a heating water tank disposed on one side of the dishwashing water reservoir, and a water inlet unit connected between the dishwashing water reservoir and the heating water tank. The dishwashing water reservoir includes a water reservoir body, a first heater disposed on the water reservoir body, a water inlet disposed on the outer side wall of the water reservoir body, and a water outlet disposed on the outer side wall of the water reservoir body. The heating water tank includes a heating water tank body, at least one second heater disposed on the heating water tank body, a heating water tank water inlet disposed on the heating water tank body, and a heating water tank water outlet disposed on the heating water tank body and used to connect to a spray device. The water inlet unit includes a water inlet section connected to the water inlet and used to connect to an external water source, a transmission section disposed in the water reservoir body, and a water outlet section disposed between the water inlet and the water outlet of the heating water tank. One end of the transmission section is connected to the water inlet, and the other end of the transmission section is connected to the water outlet. The transmission section includes a plurality of U-shaped tubes connected end to end, and the outer contour of the U-shaped tube is U-shaped, which increases the transmission time of clean water in the water storage tank body.

[0006] Furthermore, the height of the water inlet is smaller than the height of the water outlet.

[0007] Furthermore, the water inlet of the heating water tank and the water outlet of the heating water tank are respectively arranged at two ends of the heating water tank body.

[0008] Furthermore, the second heater is disposed at one end of the heating water tank body facing the water outlet of the heating water tank.

[0009] Furthermore, the plurality of U-shaped tubes are integrally formed.

[0010] Furthermore, the heating water tank also includes a temperature sensor arranged on the heating water tank body.

[0011] Compared with the prior art, the heat recovery system for dishwashers provided by the utility model transmits clean water to the dishwashing water reservoir and the heating water tank in sequence through the water inlet unit. A first heater is arranged on the water reservoir body in the dishwashing water reservoir, and a water inlet and a water outlet are arranged on the outer wall of the water reservoir body. A second heater is arranged on the heating water tank body in the heating water tank, and a heating water tank water inlet and a heating water tank water outlet are arranged on the heating water tank body. The water inlet section in the water inlet unit is connected to the water inlet and is used to connect to an external water source, the transmission section is arranged in the water reservoir body, and the water outlet section is arranged between the heating water tank water inlet and the water outlet. One end of the transmission section is connected to the water inlet, and the other end of the transmission section is connected to the water outlet, that is, the transmission section transmits the water from the water inlet section to the water outlet section, and the transmission section includes a plurality of U-shaped tubes connected end to end. The clean water is transmitted through a plurality of U-shaped tubes, which increases the time that the clean water stays in the water reservoir body, that is, increases the time that the waste water in the water reservoir body preheats the clean water in the transmission section, thereby improving the efficiency of heat recovery. It can be seen from this that the heat recovery system of the dishwasher preheats the injected clean water through waste water, effectively saving the use cost, effectively reducing the energy consumption of the dishwasher, and making the dishwasher more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model provides a schematic structural diagram of a heat recovery system for a dishwasher. DETAILED DESCRIPTION

[0013] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0014] like Figure 1As shown, it is a schematic diagram of the structure of the heat recovery system for the dishwasher provided by the utility model. The heat recovery system for the dishwasher includes a dishwashing water reservoir 10 for receiving a dishwashing spray device (not shown), a heating water tank 20 arranged on one side of the dishwashing water reservoir 10, and a water inlet unit 30 connected between the dishwashing water reservoir 10 and the heating water tank 20. The heat recovery system for the dishwasher also includes some other functional modules, such as assembly components, etc., which should be technologies known to those skilled in the art and will not be described in detail one by one here.

[0015] The dishwashing water tank 10 includes a water tank body 11, a first heater 12 disposed on the water tank body 11, a water inlet 13 disposed on the outer wall of the water tank body 11, and a water outlet 14 disposed on the outer wall of the water tank body 11. The water tank body 11 is used to contain water, and the first heater 12 is used to heat the water in the water tank body 11, so as to maintain the water temperature in the water tank body 11. During use, water in the dishwashing spray device (not shown) falls into the water tank body 11, and the wastewater in the water tank body 11 is maintained stable by the first heater 12, and the wastewater is re-transmitted and cleaned by the wastewater recycling equipment (not shown). The structure of the wastewater recycling equipment re-transmitting the wastewater is a prior art, and the first heater 12 is also a prior art, which will not be described in detail here.

[0016] The water outlet 14 and the water inlet 13 are used to connect to the water inlet unit 30 , so the water outlet 14 and the water inlet 13 will be described in detail in conjunction with the water inlet unit 30 and will not be described in detail herein.

[0017] The heating water tank 20 includes a heating water tank body 21, at least one second heater 22 arranged on the heating water tank body 21, a heating water tank water inlet 23 arranged on the heating water tank body 21, a heating water tank water outlet 24 arranged on the heating water tank body 21 and used to connect a spray device, and a temperature sensor 25 arranged on the heating water tank body 21.

[0018] The heating water tank body 21 is used to accommodate the water injected by the water inlet unit 30. The heating water tank body 21 is a prior art and will not be described in detail herein.

[0019] The second heater 22 is used to heat the water in the heating water tank body 21. The second heater 22 is a prior art and will not be described in detail herein.

[0020] The water inlet 23 of the heating water tank is used to connect to the water outlet section 33 in the water inlet unit 30, that is, the water inlet unit 30 transfers water to the heating water tank body 21, and the water outlet 24 of the heating water tank is used to transfer the heating water tank body 21 to the spraying equipment (not shown). The water inlet 23 and the water outlet 24 of the heating water tank are a prior art.

[0021] The heating water tank water inlet 23 and the heating water tank water outlet 24 are respectively arranged at the two ends of the heating water tank body 21, and the second heater 22 is arranged at one end of the heating water tank body 21 facing the heating water tank water outlet 24, so that the water injected into the heating water tank body 21 is directly heated by the second heater 22 to improve the heating efficiency.

[0022] The temperature sensor 25 is used to sense the temperature in the heating water tank body 21 and control the water temperature in the heating water tank body 21 to maintain a specified temperature range. The temperature sensor 25 is a prior art and will not be described in detail here.

[0023] The water inlet unit 30 includes a water inlet section 31 connected to the water inlet 13 and used to connect to an external water source, a transmission section 32 arranged in the water reservoir body 11, and a water outlet section 33 arranged between the water inlet 23 of the heating water tank and the water outlet 14.

[0024] One end of the transmission section 32 is connected to the water inlet 13, and the other end of the transmission section 32 is connected to the water outlet 24, that is, the transmission section transmits the water of the water inlet section 31 to the water outlet section 33. The height of the water inlet 13 is less than the height of the water outlet 14, that is, the water flows from low to high, which increases the flow time of water in the transmission section 32 and improves the preheating effect.

[0025] The transmission section 32 includes a plurality of U-shaped tubes 321 connected end to end, and the outer contour of the U-shaped tubes 321 is U-shaped. The clean water is transmitted through the plurality of U-shaped tubes 321, which increases the transmission time of the clean water in the water storage tank body 11, that is, increases the preheating time of the clean water in the transmission section 32 by the wastewater in the water storage tank body 11, and improves the efficiency of heat recovery. The plurality of U-shaped tubes 321 are integrally formed to ensure the structural stability of the transmission section 32.

[0026] The water outlet section 33 connects the water inlet 23 of the heating water tank and the water outlet 14 , and transmits the clean water preheated in the transmission section 32 to the heating water tank body 21 , thereby reducing the power of the second heater 22 in the heating water tank 20 .

[0027] Compared with the prior art, the heat recovery system for dishwashers provided by the utility model transmits clean water to the dishwashing water reservoir 10 and the heating water tank 20 in sequence through the water inlet unit 30. A first heater 12 is arranged on the water reservoir body 11 in the dishwashing water reservoir 10, and a water inlet 13 and a water outlet 14 are arranged on the outer wall of the water reservoir body 11. A second heater 22 is arranged on the heating water tank body 21 in the heating water tank 20, and a heating water tank water inlet 23 and a heating water tank water outlet 24 are arranged on the heating water tank body 21. The water inlet section 31 in the water inlet unit 30 is connected to the water inlet 13 and is used to connect to an external water source, the transmission section 32 is arranged in the water reservoir body 11, and the water outlet section 33 is arranged between the heating water tank water inlet 23 and the water outlet 14. One end of the transmission section 32 is connected to the water inlet 13, and the other end of the transmission section is connected to the water outlet 24, that is, the transmission section transmits the water of the water inlet section 31 to the water outlet section 33, and the transmission section 32 includes a plurality of U-shaped tubes 321 connected end to end. The clean water is transmitted through the plurality of U-shaped tubes 321, which increases the time that the clean water stays in the water reservoir body 11, that is, increases the time that the waste water in the water reservoir body 11 preheats the clean water in the transmission section 32, thereby improving the efficiency of heat recovery. It can be seen from this that the heat recovery system of the dishwasher preheats the injected clean water through waste water, effectively saving the use cost, effectively reducing the energy consumption of the dishwasher, and making the dishwasher more energy-saving and environmentally friendly.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A heat recovery system using a dishwasher, characterized in that: The heat recovery system for the dishwasher includes a dishwashing water tank, a heating water tank arranged on one side of the dishwashing water tank, and a water inlet unit connected between the dishwashing water tank and the heating water tank. The dishwashing water tank includes a water tank body, a first heater arranged on the water tank body, a water inlet arranged on the outer side wall of the water tank body, and a water outlet arranged on the outer side wall of the water tank body. The heating water tank includes a heating water tank body, at least one second heater arranged on the heating water tank body, and a water outlet arranged on the outer side wall of the water tank body. A water inlet of a heating water tank, and a water outlet of the heating water tank arranged on the main body of the heating water tank and used for connecting to a spray device, the water inlet unit includes a water inlet section connected to the water inlet and used for connecting to an external water source, a transmission section arranged in the main body of the water reservoir, and a water outlet section arranged between the water inlet of the heating water tank and the water outlet, one end of the transmission section is connected to the water inlet, and the other end of the transmission section is connected to the water outlet, the transmission section includes a plurality of U-shaped tubes connected end to end, the outer contour of the U-shaped tube is U-shaped, which increases the transmission time of clean water in the main body of the water reservoir.

2. The heat recovery system for a dishwasher according to claim 1, characterized in that: The height of the water inlet is smaller than the height of the water outlet.

3. The heat recovery system for a dishwasher according to claim 1, characterized in that: The water inlet of the heating water tank and the water outlet of the heating water tank are respectively arranged at two ends of the heating water tank body.

4. The heat recovery system for a dishwasher according to claim 1, characterized in that: The second heater is disposed at one end of the heating water tank body facing the water outlet of the heating water tank.

5. The heat recovery system for a dishwasher according to claim 1, characterized in that: The multiple U-shaped tubes are integrally formed.

6. The heat recovery system for a dishwasher as claimed in claim 1, characterized in that: The heating water tank also includes a temperature sensor arranged on the heating water tank body.

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