CN209840764U - Dish washer heat recovery unit and dish washer - Google Patents
Dish washer heat recovery unit and dish washer Download PDFInfo
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- CN209840764U CN209840764U CN201822275208.0U CN201822275208U CN209840764U CN 209840764 U CN209840764 U CN 209840764U CN 201822275208 U CN201822275208 U CN 201822275208U CN 209840764 U CN209840764 U CN 209840764U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The utility model provides a dishwasher heat recovery device and a dishwasher, relating to the technical field of household appliances, comprising a first box body, a first heat exchange pipe group, a second heat exchange pipe group, a third heat exchange pipe group and a control system which are arranged in the first box body, wherein the first box body is provided with a first hot water inlet connected with a water outlet of the dishwasher and a first hot water outlet connected with a drainage pipe, the first heat exchange pipe group is connected with a cold water inlet, the third heat exchange pipe group is connected with a water inlet of the dishwasher, two adjacent heat exchange pipe groups are connected through a one-way valve and are provided with a shunt pipe, the control system is used for controlling whether the first shunt pipe and the second shunt pipe are communicated with the dishwasher or not, the heat recovery device can heat the cold water when a hot rinsing program is carried out, the electricity consumption is increased, wasting energy and the like.
Description
Technical Field
The utility model belongs to the technical field of domestic appliance technique and specifically relates to a dish washer heat reclamation device and dish washer are related to.
Background
With the improvement of living standard and the improvement of science and technology of people, whether various consumer products are energy-saving, environment-friendly and low-carbon is more and more concerned by consumers. The energy consumption value of products in the dishwasher industry is reduced more and more in recent years, and innovation points of various brands are developed around how to reduce the power consumption. The dish washer is used for automatically cleaning tableware such as dish, chopsticks, dish, knife and fork, and can be divided into two types of box type and conveying type according to the structure. It reduces the labor intensity for the cooking personnel in dining room, hotel and dining room of office, improves the working efficiency and promotes the cleanness and sanitation. At present, various small dishwashers are on the market, and are gradually entering ordinary households.
The main electricity consumption link of the dish washing machine is a heating stage of a washing pump, mainly a main washing stage and a heating drying stage. Usually, the power of a washing pump for a dish washer is 1200W-1800W, most methods for reducing power consumption in the industry at present adopt an auxiliary scheme to reduce heating time or heating temperature points, for example, the temperature points of the last hot rinsing can be reduced by adopting fan drying, and the power of a motor for driving a fan is very low and only dozens of watts are needed, so that the power consumption of a heater can be reduced, and the purpose of reducing the power consumption of the whole machine is achieved, or a chemical drying mode is adopted, and a medium capable of absorbing steam absorbs water vapor in the machine, so that the drying effect is achieved.
However, the existing scheme for reducing power consumption only reduces or reduces power consumption in the implementation process, but not does not consume power, for example, the fan is dry, and only reduces power consumption because the power of a motor for driving the fan is small, but also generates power consumption. At present, most of products in the industry directly discharge hot water (usually 55-65 ℃) of main washing after the main washing is finished, and the hot water of the main washing is not recycled, so that the heat in the hot water directly discharged is wasted, cold water needs to be heated when the last hot rinsing procedure is carried out, the power consumption is increased, and energy is wasted.
Based on the above description, there is a need for a new heat recovery device of a dishwasher to solve the problems of the prior art that cold water needs to be heated when a heat drifting procedure is performed, power consumption is increased, and energy is wasted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dish washer heat reclamation device, the device have solved and need heat for cold water when carrying out the hot procedure that floats, have increased the power consumption, extravagant energy scheduling problem.
The purpose of the utility model is realized by adopting the following technical scheme.
The utility model provides a heat recovery device of a dish washing machine, which comprises a first box body, a first heat exchange pipe group, a second heat exchange pipe group, a third heat exchange pipe group and a control system, wherein the first heat exchange pipe group, the second heat exchange pipe group, the third heat exchange pipe group and the control system are arranged in the first box body;
the first box body is provided with a first hot water inlet connected with a water outlet of the dish washing machine and a first hot water outlet connected with a drainage pipeline;
the first heat exchange tube group is connected with a cold water inlet;
the third heat exchange tube group is connected with a water inlet of the dish washing machine;
the first heat exchange tube group and the second heat exchange tube group are connected with each other through one-way valves, and the second heat exchange tube group and the third heat exchange tube group are connected with each other through one-way valves;
a first shunt pipe connected with the water inlet is arranged between the first heat exchange pipe group and the second heat exchange pipe group;
a second shunt pipe connected with the water inlet is arranged between the second heat exchange pipe group and the third heat exchange pipe group;
the control system is used for controlling whether the first shunt pipe and the second shunt pipe are communicated with the dishwasher or not.
In any one of the above technical solutions, preferably, the first heat exchange tube group includes a first casing and a first exchange tube disposed in the first casing;
one end of the first exchange pipe penetrates through the first shell and is used for inflow of cold water, and the other end of the first exchange pipe is connected with the second heat exchange pipe group;
the first shell is communicated with the first hot water inlet.
In any of the above technical solutions, preferably, the second heat exchange tube group includes a second casing and a second exchange tube disposed in the second casing;
one end of the second exchange tube penetrates through the second shell to be connected with the first exchange tube for receiving the output of the first exchange tube, and the other end of the second exchange tube is connected with the third heat exchange tube group;
the first exchange pipe is connected with the second exchange pipe through a first one-way valve;
a first electromagnetic valve connected with the control system is arranged between the first one-way valve and the second exchange pipe;
the first shell is communicated with the second shell through a third one-way valve.
In any one of the above technical solutions, preferably, the third heat exchange tube group includes a third casing and a third exchange tube disposed in the third casing;
one end of the third exchange pipe penetrates through the third shell and is connected with the second exchange pipe for receiving the output of the second exchange pipe, and the other end of the third exchange pipe is connected with the water inlet of the dishwasher;
the second exchange pipe is connected with the third exchange pipe through a second one-way valve;
a second electromagnetic valve connected with the control system is arranged between the second one-way valve and the third exchange pipe;
the second shell is communicated with the third shell through a fourth one-way valve;
the third housing is in communication with the first hot water outlet.
In any of the above technical solutions, preferably, a first temperature sensor is disposed at a connection position of the first exchanging tube and the second exchanging tube;
a second temperature sensor is arranged at the joint of the second exchange tube and the third exchange tube;
the first temperature sensor and the second temperature sensor are both connected with the control system.
In any of the above technical solutions, preferably, a third electromagnetic valve connected with the control system is arranged at a connection position of the first shunt pipe and the first exchange pipe and a connection position of the second shunt pipe and the second exchange pipe;
and a fourth electromagnetic valve connected with the control system is arranged at the joint of the second shunt pipe and the second exchange pipe and the third exchange pipe.
In any of the above technical solutions, preferably, a first water level sensor and a second water level sensor are disposed in the first housing;
the first water level sensor is arranged at the top in the first shell;
the second water level sensor is arranged at the bottom in the first shell.
In any of the above technical solutions, a third water level sensor and a fourth water level sensor are disposed in the second housing;
the third water level sensor is arranged at the top in the second shell;
the fourth water level sensor is arranged at the bottom in the second shell.
In any of the above technical solutions, a fifth water level sensor and a sixth water level sensor are disposed in the third housing;
the fifth water level sensor is arranged at the top in the third shell;
the sixth water level sensor is arranged at the bottom in the third shell.
The utility model provides a heat recovery device of dish-washing machine, which comprises a first box body, a first heat exchange pipe group, a second heat exchange pipe group, a third heat exchange pipe group and a control system, wherein the first heat exchange pipe group, the second heat exchange pipe group, the third heat exchange pipe group and the control system are arranged in the first box body, a first hot water inlet connected with a water outlet of the dish-washing machine and a first hot water outlet connected with a drainage pipe are arranged on the first box body, the first heat exchange pipe group is connected with a cold water inlet, the third heat exchange pipe group is connected with a water inlet of the dish-washing machine, the first heat exchange pipe group and the second heat exchange pipe group are connected with each other through check valves, a first shunt pipe connected with the water inlet is arranged between the first heat exchange pipe group and the second heat exchange pipe group, a second shunt pipe connected with the water inlet is arranged between the second heat exchange pipe group and the, the control system is used for controlling whether the first shunt pipe and the second shunt pipe are communicated with the dishwasher or not.
The device is used for the dishwasher to retrieve the heat that the used hot water in washing stage carried after accomplishing the washing stage to carry out the heat exchange with the heat transfer for the cold water that is about to carry out the rinsing stage, saved the quantity of the used water of rinsing stage heating consumed electricity, the energy can be saved.
The device comprises three stages of heat exchange, namely a first heat exchange pipe group, a second heat exchange pipe group and a third heat exchange pipe group, hot water in a washing stage flows in from a first hot water inlet, namely cold water in a rinsing stage flows in from the first heat exchange pipe group, heat exchange is completed in a first box body, the first heat exchange pipe group is connected with the second heat exchange pipe group through a one-way valve, so that the cold water entering the first heat exchange pipe group can only flow along the direction from the first heat exchange pipe group to the second heat exchange pipe group, and similarly, the second heat exchange pipe group is connected with the third heat exchange pipe group through the one-way valve, so that the cold water entering the second heat exchange pipe group can only flow along the direction from the first heat exchange pipe group to the third heat exchange pipe group, the first shunt pipe and the second shunt pipe are arranged, and after the cold water entering the first heat recovery pipe group reaches the temperature required by the rinsing stage, the control system is communicated with the first shunt pipe to enable the heated cold water in the first heat exchange pipe group to enter the dishwasher for a rinsing stage, similarly, the cold water entering the first heat recovery pipe group does not reach the temperature required by the rinsing stage, the first shunt pipe is in a closed state, the cold water continues to enter the second heat recovery pipe group for second heat exchange, when the cold water in the second heat exchange pipe group reaches the temperature required by the rinsing stage, the control system is communicated with the second shunt pipe to enable the heated cold water in the second heat exchange pipe group to enter the dishwasher for the rinsing stage.
The device can realize heat recovery through one-time heat exchange, two-time heat exchange or three-time heat exchange, and whether the first shunt pipe and the second shunt pipe are connected or not is determined by the control system according to the temperature of the exchanged cold water, so that the heat exchange efficiency is improved.
The number of the heat exchanging pipe sets provided by the embodiment is three, and one, two or more than three heat exchanging pipe sets can be provided, which are all within the protection scope of the present invention.
The utility model also provides a dish washer, which comprises the heat recovery device of the dish washer provided by any technical proposal and a second box body;
the dishwasher heat recovery device is arranged in the second box body, and a heat insulation piece is arranged between the dishwasher heat recovery device and the second box body.
The utility model provides an advantage that dish washer had is the same with the advantage that dish washer heat recovery unit that above-mentioned technical scheme provided had, in addition, through the setting of heat-proof piece, reduces the heat in the first box and outwards scatters and disappears, and the at utmost improves heat exchange's effect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a heat recovery device of a dishwasher according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a dishwasher according to embodiment 2 of the present invention.
Icon: 1-a first box; 2-a first heat exchange tube bank; 3-a second heat exchange tube group; 4-a third heat exchange tube bank; 5-a first shunt pipe; 6-a second shunt pipe; 7-a second box body; 8-a thermal insulation; 11-a first hot water inlet; 12-a first hot water outlet; 21-a first housing; 22-a first exchange tube; 31-a second housing; 32-a second exchange tube; 41-a third housing; 42-a third exchange tube; 51-a first one-way valve; 52-a second one-way valve; 53-a third one-way valve; 54-fourth one-way valve.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the utility model provides a heat recovery device of a dish washer, which comprises a first box body 1, a first heat exchange pipe group 2, a second heat exchange pipe group 3, a third heat exchange pipe group 4 and a control system, wherein the first heat exchange pipe group 2, the second heat exchange pipe group 3, the third heat exchange pipe group 4 and the control system are arranged in the first box body 1;
the first box body 1 is provided with a first hot water inlet 11 connected with a water outlet of the dish-washing machine and a first hot water outlet 12 connected with a drainage pipeline;
the first heat exchange tube group 2 is connected with a cold water inlet;
the third heat exchange tube group 4 is connected with the water inlet of the dish-washing machine;
the first heat exchange tube group 2 and the second heat exchange tube group 3 and the third heat exchange tube group 4 are connected through one-way valves;
a first shunt pipe 5 connected with the water inlet is arranged between the first heat exchange pipe group 2 and the second heat exchange pipe group 3;
a second shunt pipe 6 connected with the water inlet is arranged between the second heat exchange pipe group 3 and the third heat exchange pipe group 4;
the control system is used for controlling whether the first shunt pipe 5 and the second shunt pipe 6 are communicated with the dishwasher or not.
The utility model provides a heat recovery device of dish-washing machine, which comprises a first box body 1, a first heat exchange pipe group 2, a second heat exchange pipe group 3, a third heat exchange pipe group 4 and a control system, wherein the first heat exchange pipe group 2, the second heat exchange pipe group 3, the third heat exchange pipe group 4 and the control system are arranged in the first box body 1, the first box body 1 is provided with a first hot water inlet 11 connected with a water outlet of the dish-washing machine and a first hot water outlet 12 connected with a drainage pipeline, the first heat exchange pipe group 2 is connected with a cold water inlet, the third heat exchange pipe group 4 is connected with a water inlet of the dish-washing machine, a first shunt pipe 5 connected with the water inlet is arranged between the first heat exchange pipe group 2 and the second heat exchange pipe group 3 and between the second heat exchange pipe group 3 and the third heat exchange pipe group 4 through one-way valves, a second shunt pipe 6 connected with the water inlet is arranged between the second heat exchange pipe group 3 and the third heat exchange, the control system is used for controlling whether the first shunt pipe 5 and the second shunt pipe 6 are communicated with the dishwasher or not.
The device is used for the dishwasher to retrieve the heat that the used hot water in washing stage carried after accomplishing the washing stage to carry out the heat exchange with the heat transfer for the cold water that is about to carry out the rinsing stage, saved the quantity of the used water of rinsing stage heating consumed electricity, the energy can be saved.
The device comprises three-stage heat exchange, namely a first heat exchange pipe group 2, a second heat exchange pipe group 3 and a third heat exchange pipe group 4, hot water in a washing stage flows in from a first hot water inlet 11, cold water to be rinsed flows in from the first heat exchange pipe group 2, heat exchange is completed in a first box body 1, the first heat exchange pipe group 2 is connected with the second heat exchange pipe group 3 through a one-way valve, so that the cold water entering the first heat exchange pipe group 2 can only flow in the direction from the first heat exchange pipe group 2 to the second heat exchange pipe group 3, similarly, the second heat exchange pipe group 3 is connected with the third heat exchange pipe group 4 through the one-way valve, so that the cold water entering the second heat exchange pipe group 3 can only flow in the direction from the first heat exchange pipe group 2 to the third heat exchange pipe group 4, a first shunt pipe 5 and a second shunt pipe 6 are arranged, after the temperature of the cold water entering the first heat recovery pipe group reaches the temperature required by the rinsing stage, the control system is connected with the first shunt pipe 5, so that the heated cold water in the first heat exchange pipe group 2 enters the dishwasher for the rinsing stage, and in the same way, the temperature of the cold water entering the first heat recovery pipe group does not reach the temperature required by the rinsing stage, the first shunt pipe 5 is in a closed state, the cold water continues to enter the second heat recovery pipe group for the second heat exchange, when the temperature of the cold water in the second heat exchange pipe group 3 reaches the temperature required by the rinsing stage, the control system is connected with the second shunt pipe 6, so that the heated cold water in the second heat exchange pipe group 3 enters the dishwasher for the rinsing stage, and in the same way, the temperature of the cold water entering the second heat recovery pipe group does not reach the temperature required by the rinsing stage, and the second shunt pipe 6 is in a, and the cold water continuously enters the third heat exchange tube group 4 for carrying out third heat exchange, and the cold water after the third heat exchange enters the dishwasher for carrying out a rinsing stage.
The device can realize heat recovery through one-time heat exchange, two-time heat exchange or three-time heat exchange, and whether the first shunt pipe 5 and the second shunt pipe 6 are connected or not is determined by the control system according to the temperature of the exchanged cold water, so that the heat exchange efficiency is improved.
The number of the heat exchanging pipe sets provided by the embodiment is three, and one, two or more than three heat exchanging pipe sets can be provided, which are all within the protection scope of the present invention.
With continued reference to fig. 1, in an embodiment of the present invention, preferably, the first heat exchanging tube set 2 includes a first casing 21 and a first exchanging tube 22 disposed in the first casing 21;
one end of the first exchange tube 22 passes through the first shell 21 for the inflow of cold water, and the other end is connected with the second heat exchange tube group 3;
the first housing 21 communicates with the first hot water inlet 11.
Further, the second heat exchange tube group 3 includes a second casing 31 and a second exchange tube 32 disposed in the second casing 31;
one end of the second exchange tube 32 passes through the second shell 31 to be connected with the first exchange tube 22 for receiving the output of the first exchange tube 22, and the other end is connected with the third heat exchange tube group 4;
the first exchange pipe 22 is connected with the second exchange pipe 32 through a first one-way valve 51;
a first electromagnetic valve connected with the control system is arranged between the first one-way valve 51 and the second exchange pipe 32;
the first housing 21 and the second housing 31 communicate through the third check valve 53.
Further, the third heat exchange tube group 4 includes a third casing 41 and a third exchange tube 42 provided in the third casing 41;
one end of the third exchanging pipe 42 passes through the third housing 41 and is connected with the second exchanging pipe 32 for receiving the output of the second exchanging pipe 32, and the other end is connected with the water inlet of the dishwasher;
the second exchange tube 32 is connected with the third exchange tube 42 through a second one-way valve 52;
a second electromagnetic valve connected with the control system is arranged between the second one-way valve 52 and the third exchange pipe 42;
the second housing 31 communicates with the third housing 41 through the fourth check valve 54;
the third housing 41 communicates with the first hot water outlet 12.
Further, a third electromagnetic valve connected with a control system is arranged at the joint of the first shunt pipe 5 and the first exchange pipe 22 and the second exchange pipe 32;
and a fourth electromagnetic valve connected with the control system is arranged at the joint of the second shunt pipe 6, the second exchange pipe 32 and the third exchange pipe 42.
Further, a first temperature sensor is arranged at the joint of the first exchange tube 22 and the second exchange tube 32;
a second temperature sensor is arranged at the joint of the second exchange tube 32 and the third exchange tube 42;
the first temperature sensor and the second temperature sensor are both connected with the control system.
Further, a fifth electromagnetic valve connected with the control system is arranged between the third check valve 53 and the second housing 31.
Further, a sixth electromagnetic valve connected to the control system is provided between the fourth check valve 54 and the third housing 41.
In this embodiment, the first housing 21 is communicated with the first hot water inlet 11, the hot water in the washing stage enters the first housing 21, i.e. the cold water to be rinsed flows in from the first exchange tube 22 to perform the first heat exchange with the hot water in the first housing 21, the first exchange tube 22 is connected with the second exchange tube 32 through the first check valve 51, so that the cold water entering the first exchange tube 22 can only flow in the direction from the first exchange tube 22 to the second exchange tube 32, the second housing 31 is connected with the first housing 21 through the third check valve 53, so that the hot water entering the first housing 21 can only flow in the direction from the first housing 21 to the second housing 31, the temperature of the cold water in the first exchange tube 22 after heat exchange is monitored by the first temperature sensor, and when the cold water entering the first exchange tube 22 reaches the temperature required in the rinsing stage after heat exchange, the control system switches on the first shunt pipe 5, namely opens the third electromagnetic valve, cuts off the loop between the first exchange pipe 22 and the second exchange pipe 32, namely closes the first electromagnetic valve, and simultaneously cuts off the loop between the first shell 21 and the second shell 31, namely closes the fifth electromagnetic valve, so that the heated cold water in the first exchange pipe 22 enters the dishwasher for the rinsing stage, similarly, the cold water entering the first exchange pipe 22 does not reach the temperature required by the rinsing stage, the first shunt pipe 5 is in the closed state, namely closes the third electromagnetic valve, the loop between the first exchange pipe 22 and the second exchange pipe 32 is switched on again, namely opens the first electromagnetic valve, simultaneously the loop between the first shell 21 and the second shell 31 is switched on again, namely opens the fifth electromagnetic valve, the hot water in the first shell 21 enters the second shell 31, and the cold water continues to enter the second recovery pipe for the second heat exchange, monitoring the temperature of cold water in the second exchange pipe 32 after heat exchange through a second temperature sensor, after the cold water in the second exchange pipe 32 reaches the temperature required by the rinsing stage, switching on the second shunt pipe 6 by a control system, namely opening a fourth electromagnetic valve, cutting off a loop between the second exchange pipe 32 and the third exchange pipe 42, namely closing the second electromagnetic valve, and simultaneously cutting off a loop between the second shell 31 and the third shell 41, namely closing a fifth electromagnetic valve, so that the heated cold water in the second exchange pipe 32 enters the dishwasher for the rinsing stage, and similarly, the cold water entering the second exchange pipe 32 does not reach the temperature required by the rinsing stage, the second shunt pipe 6 is in a closed state, namely closing the fourth electromagnetic valve, the loop between the second exchange pipe 32 and the third exchange pipe 42 is switched on again, namely opening the second electromagnetic valve, and simultaneously the loop between the second shell 31 and the third shell 41 is switched on again, namely, the sixth electromagnetic valve is opened, the hot water in the second housing 31 enters the third housing 41, the cold water continues to enter the third exchange pipe 42 for the third heat exchange, and the cold water after the third heat exchange enters the dishwasher for the rinsing stage.
Referring to fig. 1, in an embodiment of the present invention, a first water level sensor and a second water level sensor are disposed in the first housing 21;
the first water level sensor is arranged at the top in the first shell 21;
the second water level sensor is disposed at the bottom inside the first housing 21.
Further, a third water level sensor and a fourth water level sensor are arranged in the second housing 31;
the third water level sensor is disposed at the top inside the second housing 31;
the fourth water level sensor is disposed at the bottom inside the second housing 31.
Further, a fifth water level sensor and a sixth water level sensor are arranged in the third housing 41;
the fifth water level sensor is arranged at the top in the third shell 41;
the sixth water level sensor is provided at the bottom inside the third housing 41.
Furthermore, the first water level sensor, the second water level sensor, the third water level sensor, the fourth water level sensor, the fifth water level sensor and the sixth water level sensor are all connected with the control system.
Furthermore, a seventh electromagnetic valve connected with the control system is arranged at the cold water inlet.
In this embodiment, the first water level sensor, the second water level sensor, the third water level sensor, the fourth water level sensor, the fifth water level sensor and the sixth water level sensor are all connected to the control system, and are used for detecting the water amounts in the first shell 21, the second shell 31 and the third shell 41 and transmitting the detected water amount value to the control system, the control system further controls the water amounts entering the first shell 21, the second shell 31 and the third shell 41, specifically, when the first heat exchange is performed, hot water enters the first shell 21, when the second water level sensor detects that the water level in the first shell 21 exceeds the lowest preset water level, the seventh electromagnetic valve is opened, the first exchange pipe 22 is connected to start the first heat exchange, the cold water after the first heat exchange reaches the temperature required in the rinsing stage, the seventh electromagnetic valve is closed, after the washing stage is completed, the remaining hot water is directly discharged, and in the same way, when the cold water entering the first exchange pipe 22 does not reach the temperature required by the rinsing stage, the second heat exchange is performed, the hot water enters the second shell 31, when the fourth water level sensor monitors that the water level in the second shell 31 exceeds the lowest preset water level, the seventh electromagnetic valve is opened, the first exchange pipe 22 is connected with the cold water, the first electromagnetic valve is opened, the cold water fills the second exchange pipe 32 and the first exchange pipe 22, the second heat exchange is started, the cold water after the second heat exchange reaches the temperature required by the rinsing stage, the seventh electromagnetic valve is closed, the remaining hot water after the washing stage is directly discharged, in the same way, the cold water entering the second exchange pipe 32 does not reach the temperature required by the rinsing stage, the third heat exchange is performed, the hot water enters the third shell 41, when the sixth water level sensor detects that the water level in the third housing 41 exceeds the lowest preset water level, the seventh solenoid valve is opened, the first exchange pipe 22 is connected with cold water, the first solenoid valve and the second solenoid valve are opened, the third exchange pipe 42, the second exchange pipe 32 and the first exchange pipe 22 are filled with cold water, heat exchange is started for the third time, the cold water after heat exchange for the third time reaches the temperature required by the rinsing stage, the seventh solenoid valve is closed, and residual hot water after the washing stage is finished is directly discharged.
Example 2
As shown in fig. 2, embodiment 2 of the present invention provides a dishwasher, including the dishwasher heat recovery device provided in embodiment 1, further including a second case 7;
the dishwasher heat recovery device is arranged in the second box body 7, and a heat insulation piece 8 is arranged between the dishwasher heat recovery device and the second box body 7.
The advantages of the dishwasher provided by the embodiment are the same as those of the heat recovery device of the dishwasher provided by the embodiment 1, and in addition, the heat in the first box body 1 is reduced to be dissipated to the outside by the arrangement of the heat insulation piece 8, so that the heat recovery and exchange effect is improved to the maximum extent.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A heat recovery device of a dish washing machine is characterized by comprising a first box body, a first heat exchange pipe group, a second heat exchange pipe group, a third heat exchange pipe group and a control system, wherein the first heat exchange pipe group, the second heat exchange pipe group, the third heat exchange pipe group and the control system are arranged in the first box body;
the first box body is provided with a first hot water inlet connected with a water outlet of the dish washing machine and a first hot water outlet connected with a drainage pipeline;
the first heat exchange tube group is connected with a cold water inlet;
the third heat exchange tube group is connected with a water inlet of the dish washing machine;
the first heat exchange tube group and the second heat exchange tube group are connected with each other through one-way valves, and the second heat exchange tube group and the third heat exchange tube group are connected with each other through one-way valves;
a first shunt pipe connected with the water inlet is arranged between the first heat exchange pipe group and the second heat exchange pipe group;
a second shunt pipe connected with the water inlet is arranged between the second heat exchange pipe group and the third heat exchange pipe group;
the control system is used for controlling whether the first shunt pipe and the second shunt pipe are communicated with the dishwasher or not.
2. The dishwasher heat recovery device of claim 1 wherein the first bank of heat exchange tubes comprises a first housing and a first exchange tube disposed within the first housing;
one end of the first exchange pipe penetrates through the first shell and is used for inflow of cold water, and the other end of the first exchange pipe is connected with the second heat exchange pipe group;
the first shell is communicated with the first hot water inlet.
3. The dishwasher heat recovery device of claim 2 wherein the second bank of heat exchange tubes comprises a second housing and a second exchange tube disposed within the second housing;
one end of the second exchange tube penetrates through the second shell to be connected with the first exchange tube for receiving the output of the first exchange tube, and the other end of the second exchange tube is connected with the third heat exchange tube group;
the first exchange pipe is connected with the second exchange pipe through a first one-way valve;
a first electromagnetic valve connected with the control system is arranged between the first one-way valve and the second exchange pipe;
the first shell is communicated with the second shell through a third one-way valve.
4. The dishwasher heat recovery device of claim 3 wherein the third bank of heat exchange tubes comprises a third housing and a third exchange tube disposed within the third housing;
one end of the third exchange pipe penetrates through the third shell and is connected with the second exchange pipe for receiving the output of the second exchange pipe, and the other end of the third exchange pipe is connected with the water inlet of the dishwasher;
the second exchange pipe is connected with the third exchange pipe through a second one-way valve;
a second electromagnetic valve connected with the control system is arranged between the second one-way valve and the third exchange pipe;
the second shell is communicated with the third shell through a fourth one-way valve;
the third housing is in communication with the first hot water outlet.
5. The dishwasher heat recovery device of claim 4 wherein a first temperature sensor is provided at the junction of the first exchange tube and the second exchange tube;
a second temperature sensor is arranged at the joint of the second exchange tube and the third exchange tube;
the first temperature sensor and the second temperature sensor are both connected with the control system.
6. The dishwasher heat recovery device according to claim 4, wherein a third solenoid valve connected with the control system is arranged at the connection of the first shunt pipe and the first exchange pipe and the second exchange pipe;
and a fourth electromagnetic valve connected with the control system is arranged at the joint of the second shunt pipe and the second exchange pipe and the third exchange pipe.
7. The dishwasher heat recovery device of claim 2 wherein a first water level sensor and a second water level sensor are disposed within the first housing;
the first water level sensor is arranged at the top in the first shell;
the second water level sensor is arranged at the bottom in the first shell.
8. The dishwasher heat recovery device of claim 3 wherein a third water level sensor and a fourth water level sensor are disposed within the second housing;
the third water level sensor is arranged at the top in the second shell;
the fourth water level sensor is arranged at the bottom in the second shell.
9. The dishwasher heat recovery device of claim 4 wherein a fifth water level sensor and a sixth water level sensor are provided within the third housing;
the fifth water level sensor is arranged at the top in the third shell;
the sixth water level sensor is arranged at the bottom in the third shell.
10. A dishwasher, comprising the heat recovery apparatus of any one of claims 1 to 9, further comprising a second cabinet;
the dishwasher heat recovery device is arranged in the second box body, and a heat insulation piece is arranged between the dishwasher heat recovery device and the second box body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275208.0U CN209840764U (en) | 2018-12-30 | 2018-12-30 | Dish washer heat recovery unit and dish washer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822275208.0U CN209840764U (en) | 2018-12-30 | 2018-12-30 | Dish washer heat recovery unit and dish washer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674686A (en) * | 2020-12-03 | 2021-04-20 | 珠海格力电器股份有限公司 | Waste heat recovery device and method for dish washing machine and dish washing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674686A (en) * | 2020-12-03 | 2021-04-20 | 珠海格力电器股份有限公司 | Waste heat recovery device and method for dish washing machine and dish washing machine |
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