CN111265170A

CN111265170A - Washing appliance and energy recovery device for a washing appliance

Info

Publication number: CN111265170A
Application number: CN201811480859.1A
Authority: CN
Inventors: 赵洪图
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2020-06-12

Abstract

The invention discloses a washing electric appliance and an energy recovery device for the same, wherein the energy recovery device comprises: the body is provided with a first channel, a second channel and an energy recovery part, the energy recovery part is made of materials with specific heat capacity of more than or equal to 800J/(kg-K), the energy recovery part is constructed to be suitable for exchanging heat with fluid in the first channel and transferring the heat or cold obtained by the heat or cold exchange to the fluid in the second channel, and the fluid can be introduced into the first channel and the second channel at the same time or not. The energy recovery device for the washing electric appliance can realize the recovery, storage and reutilization of energy, has high energy recovery rate and good energy storage effect, and can simultaneously or non-simultaneously perform the energy recovery and the energy reutilization so as to meet more use requirements.

Description

Washing appliance and energy recovery device for a washing appliance

Technical Field

The invention relates to the technical field of washing appliances, in particular to a washing appliance and an energy recovery device for the same.

Background

The temperature of the wastewater after the dish washer washes the dishes is still high, and energy is wasted if the wastewater is directly discharged. In the related art, energy recovery is realized by heat exchange between waste water and cold water, but energy recovery requires that drainage and inflow of water of a dishwasher are performed simultaneously, so that use is inconvenient, and an energy recovery device has a complex structure and occupies a large space.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide an energy recovery device for a washing appliance, which can achieve energy recovery, storage and reuse, and has a good energy storage effect.

Another object of the present invention is to provide a washing appliance having the above energy recovery device.

An energy recovery device for a washing appliance according to an embodiment of the present invention includes: the body is provided with a first channel, a second channel and an energy recovery part, the energy recovery part is made of materials with specific heat capacity of more than or equal to 800J/(kg-K), the energy recovery part is constructed to be suitable for exchanging heat with fluid in the first channel and transferring the heat or cold obtained by the heat or cold exchange to the fluid in the second channel, and the fluid can be introduced into the first channel and the second channel at the same time or not.

The energy recovery device for the washing electric appliance can realize the recovery, storage and reutilization of energy, has high energy recovery rate and good energy storage effect, and can simultaneously or non-simultaneously perform the energy recovery and the energy reutilization so as to meet more use requirements.

In addition, the energy recovery device for a washing appliance according to the above embodiment of the present invention may further have the following additional technical features:

according to the energy recovery device for a washing appliance of the embodiment of the present invention, at least one of at least a portion of the first channel and at least a portion of the second channel extends spirally or linearly within the energy recovery part.

According to some embodiments of the invention, the body comprises: an energy recovery body, at least a portion of which constitutes the energy recovery portion; the first pipe body is internally provided with the first channel and comprises a first pipe section which is in contact with the outer surface of the energy recovery part and/or a second pipe section which extends into the energy recovery part; the second pipe body is internally provided with the second channel and comprises a third pipe section in contact with the outer surface of the energy recovery part and/or a fourth pipe section extending into the energy recovery part.

Further, the outer surface of the energy recovery part is provided with a first fixing groove, and at least one part of the first pipe section is embedded into the first fixing groove; and/or the outer surface of the energy recovery portion has a second fixing groove, and at least a portion of the third pipe section is embedded in the second fixing groove.

Further, at least one of the first fixing groove and the second fixing groove is semicircular in cross section, and at least one of the first pipe section and the third pipe section is a hollow circular pipe matched with the semicircular shape.

Further, at least one of the first tube section and the third tube section surrounds an outer surface of the energy recovery portion in a direction of helical extension.

Further, the first pipe section and the third pipe section both extend spirally on the outer surface of the energy recovery portion along the same spiral axis direction, and the first pipe section and the third pipe section are arranged at intervals along the spiral axis direction.

In some embodiments of the invention, the first tube and the second tube are spaced apart.

According to some embodiments of the present invention, the first pipe body and the second pipe body are made of a material having a specific heat capacity of 800J/(kg · K) or more.

According to some embodiments of the invention, the energy recovery device further comprises: the body is arranged in the shell, and the shell is made of a material with the specific heat capacity of more than or equal to 800J/(kg.K).

In some embodiments of the invention, the energy recovery section is made of asbestos.

The washing appliance according to an embodiment of the present invention includes an energy recovery device for a washing appliance according to an embodiment of the present invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an energy recovery device according to an embodiment of the invention;

fig. 2 is a partial cross-sectional view of an energy recovery device according to an embodiment of the invention.

Reference numerals:

an energy recovery device 100;

a body 10;

an energy recovery body 20; an energy recovery unit 21; the first fixing groove 211; a second fixing groove 212;

a first tube 30; a first channel 301; a first tube section 31;

a second tube 40; a second channel 401; a third tube section 41.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

An energy recovery device 100 for a washing appliance according to an embodiment of the present invention is described below with reference to fig. 1 and 2.

Referring to fig. 1 and 2, an energy recovery apparatus 100 for a washing appliance according to an embodiment of the present invention may include: a body 10.

Specifically, as shown in fig. 1 and 2, the body 10 may be provided with a first passage 301, a second passage 401, and an energy recovery part 21. Wherein the energy recovery part 21 is made of a material having a specific heat capacity of 800J/(kg · K) or more, the energy recovery part 21 is configured to be capable of exchanging heat with the fluid in the first passage 301, and the energy recovery part 21 is capable of transferring the heat or cold obtained by the exchange to the fluid in the second passage 401. Thereby, a heat exchange between the fluid in the first channel 301 and the fluid in the second channel 401 is achieved, i.e. the heat of the fluid in the first channel 301 is finally transferred to the fluid in the second channel 401, or the heat of the fluid in the second channel 401 is finally transferred to the fluid in the first channel 301.

In the invention, the specific heat capacity of the material for manufacturing the energy recovery part 21 is more than or equal to 800J/(kg.K), and the specific heat capacity of the energy recovery part 21 is relatively large, so that the energy recovery part 21 can recover and store more heat, the energy recovery efficiency is higher, the energy recovery and reutilization effect is better, and the energy saving and consumption reduction are more facilitated.

Alternatively, in some specific embodiments, the specific heat capacity of the material making up the energy recovery portion 21 may be 1000J/(kg · K), 1200J/(kg · K), 1500J/(kg · K), 1800J/(kg · K), 2000J/(kg · K), 3000J/(kg · K), or the like. Alternatively, in some embodiments, the energy recovery part 21 may be made of asbestos, which has a high specific heat capacity and a good energy storage effect, and is easy to process and low in cost, thereby facilitating the simplification of the processing process and the reduction of the production cost.

In addition, the first channel 301 and the second channel 401 may be simultaneously supplied with fluid, or the first channel 301 and the second channel 401 may not be simultaneously supplied with fluid.

That is, in one usage condition of the energy recovery device 100, the first channel 301 and the second channel 401 may simultaneously flow in fluid, the fluid in the first channel 301 may exchange heat with the energy recovery part 21, for example, transfer heat to the energy recovery part 21, and the energy recovery part 21 may simultaneously exchange heat with the fluid in the second channel 401 to further transfer heat to the fluid in the second channel 401, so as to realize the transfer of the heat of the fluid in the first channel 301 to the fluid in the second channel 401, and the energy transfer efficiency is high. Of course, the fluid in the first duct 301 may transmit the coldness to the energy recovery unit 21, and the energy recovery unit 21 may transmit the coldness to the fluid in the second duct 401 at the same time, that is, the heat of the fluid in the second duct 401 may be transmitted to the fluid in the first duct 301.

In another use condition of the energy recovery device 100, the fluid is first introduced into the first channel 301, and the fluid in the first channel 301 exchanges heat with the energy recovery part 21, for example, transfers and stores heat or cold to the energy recovery part 21. When the second channel 401 is filled with fluid, the energy recovery part 21 may exchange heat with the fluid in the second channel 401 to further transfer heat or cold to the fluid in the second channel 401, so as to realize heat exchange between the fluid in the first channel 301 and the fluid in the second channel 401. In this process, the energy recovery part 21 can store energy, and the energy recovery and energy reuse processes do not need to be performed simultaneously, so that the use is more convenient.

Of course, the order of the fluid flowing into the first channel 301 and the second channel 401 may be interchanged, that is, the fluid is first flowing into the second channel 401, the fluid is then flowing into the first channel 301, or the time of flowing into the first channel 301 and the time of flowing into the second channel 401 may be partially overlapped.

For example, when the energy recovery device 100 is applied to a washing appliance, the first passage 301 may communicate with a drain passage of the washing appliance, and the second passage 401 may communicate with a water inlet passage of the washing appliance. After the washing electric appliance washes for a period of time, the water in the washing electric appliance is heated to a certain temperature, and after the previous washing round of the washing electric appliance is finished, the waste water with the residual heat can flow into the first channel 301 and then is discharged. The wastewater is heat-exchanged with the energy recovery part 21 in the first passage 301 to transfer heat to the energy recovery part 21, thereby achieving energy recovery.

Energy recuperation portion 21 can be stored the heat, when the washing of the back round, cold water passes through second passageway 401 and then gets into the washing electrical apparatus through inhalant canal, cold water carries out the heat exchange with energy recuperation portion 21 in second passageway 401, energy recuperation portion 21 is with the cold water of heat transfer to in the second passageway 401 of storing, in order to preheat it, the washing is heated again after the water entering washing electrical apparatus that preheats, the rate of heating is faster, be favorable to improving washing efficiency, and play energy saving and consumption reduction effect.

It should be noted that, in the present invention, the "previous washing round" and the "next washing round" may be two washing processes before and after washing the same batch of objects to be cleaned by the washing electric appliance, or may be two washing processes after washing the different batches of objects to be cleaned by the washing electric appliance. For example, the washing appliance is a dishwasher, the energy recovery part 21 can recover and store heat of wastewater after the dishwasher washes dishes at noon, and the energy recovery part 21 can use the stored heat for heating intake water when washing dishes after dinner, so as to realize energy recycling. Here, the inlet water may be water supplied from a city government or other water sources, and may be low-temperature water, normal-temperature water, warm water, or hot water.

According to the energy recovery device 100 for the washing appliance, the body 10 provided with the first channel 301, the second channel 401 and the energy recovery part 21 can be used for recovering, storing and recycling energy, the energy recovery part 21 is made of a material with the specific heat capacity of more than or equal to 800J/(kg · K), the energy recovery rate is high, the energy storage effect is good, fluid can be introduced into the first channel 301 and the second channel 401 at the same time or not, and the energy recovery and the energy recycling of the energy recovery device 100 can be carried out at the same time or not, so that more use requirements can be met.

Alternatively, in some embodiments, at least a portion of the first channel 301 may extend spirally or linearly within the energy recovery part 21 to improve the heat exchange efficiency between the fluid in the first channel 301 and the energy recovery part 21, and the first channel 301 has a simple structure and is easy to machine.

In other embodiments, at least a portion of the second channel 401 may extend spirally or linearly within the energy recovery part 21 to improve the heat exchange efficiency between the fluid in the second channel 401 and the energy recovery part 21, and the second channel 401 is simple in structure and easy to machine.

Of course, in still other embodiments, at least a portion of the first channel 301 and at least a portion of the second channel 401 may each extend spirally or linearly within the energy recovery portion 21, and the extending structures of at least a portion of the first channel 301 and at least a portion of the second channel 401 may be the same or different.

According to some embodiments of the present invention, as shown in fig. 2, the body 10 may include: the energy recovery body 20, the first tube 30, and the second tube 40, at least a portion of the energy recovery body 20 may constitute the energy recovery portion 21.

The first pipe body 30 may have a first passage 301 therein, and the first pipe body 30 may include at least one of a first pipe section 31 and a second pipe section. Wherein the first pipe section 31 may be in contact with an outer surface of the energy recovery part 21 and the second pipe section may extend into the interior of the energy recovery part 21. The second pipe body 40 may have a second passage 401 therein, and the second pipe body 40 may include at least one of a third pipe section 41 and a fourth pipe section. Wherein the third pipe section 41 may be in contact with the outer surface of the energy recovery part 21 and the fourth pipe section may extend into the interior of the energy recovery part 21. The body 10 is simple in structure and small in size, and various structures can be designed according to actual requirements so as to meet different energy recovery, storage and recycling requirements.

Further, as shown in fig. 2, in the embodiment having the first pipe segment 31, the outer surface of the energy recovery part 21 may have a first fixing groove 211, and at least a portion of the first pipe segment 31 may be embedded in the first fixing groove 211. On one hand, the first pipe section 31 can be connected with the energy recovery part 21, and the connection structure is simple and easy to assemble; on the other hand, the contact area between the first pipe section 31 and the energy recovery part 21 can be increased, so that the heat exchange efficiency, the energy recovery rate and the energy reuse rate are improved, and the reduction of the volume of the energy recovery device 100 is facilitated.

As shown in fig. 2, in the embodiment having the third pipe segment 41, the outer surface of the energy recovery part 21 may have a second fixing groove 212, and at least a portion of the third pipe segment 41 may be embedded in the second fixing groove 212. On one hand, the third pipe section 41 can be connected with the energy recovery part 21, the connection structure is simple, and the assembly is easy; on the other hand, the contact area between the third pipe section 41 and the energy recovery part 21 can be increased, so that the heat exchange efficiency, the energy recovery rate and the energy reuse rate are improved, and the reduction of the volume of the energy recovery device 100 is facilitated.

In the present invention, the structures of the first fixing groove 211 and the second fixing groove 212 may be flexibly arranged according to actual requirements. For example, in some embodiments, as shown in fig. 2, at least one of the first fixing groove 211 and the second fixing groove 212 may have a semicircular cross section, and at least one of the first tube segment 31 and the third tube segment 41 may be a hollow circular tube, and the hollow circular tube is matched with the semicircular shape, so that the hollow circular tube and the energy recovery part 21 can be in surface-to-surface contact, thereby improving heat exchange efficiency, energy recovery rate and energy reuse rate. And the hollow circular tube is more easily inserted into the semicircular groove, and at least one of the first tube section 31 and the third tube section 41 is more conveniently assembled with the energy recovery part 21.

Further, as shown in fig. 1 and 2, the first pipe segment 31 may surround the outer surface of the energy recovery part 21 in a direction in which the first pipe segment extends spirally, or the third pipe segment 41 may surround the outer surface of the energy recovery part 21 in a direction in which the third pipe segment 41 extends spirally, or both the first pipe segment 31 and the third pipe segment 41 may surround the outer surface of the energy recovery part 21 in a direction in which the third pipe segment extends spirally. Accordingly, the contact area between the first tube 31 and the third tube 41 and the energy recovery unit 21 can be further increased, and the heat exchange efficiency, the energy recovery rate, and the energy reuse rate can be further improved.

In the embodiment where the first pipe section 31 and the third pipe section 41 both surround the outer surface of the energy recovery part 21 in the direction in which the spiral extends, as shown in fig. 1 and 2, the first pipe section 31 and the third pipe section 41 may extend spirally on the outer surface of the energy recovery part 21 in the same spiral axis direction, and the first pipe section 31 and the third pipe section 41 are disposed at intervals in the spiral axis direction.

Thus, after the fluid in the first passage 301 exchanges heat with the energy recovery unit 21, heat or cold can be exchanged with the fluid in the second passage 401 without being transmitted over a large distance inside the energy recovery unit 21. That is, the energy recovery unit 21 is advantageous in that the portion that exchanges heat with the fluid in the first channel 301 and the portion that exchanges heat with the fluid in the second channel 401 are closer to each other, thereby improving the heat exchange efficiency.

Alternatively, in the present invention, the first tube 30 and the second tube 40 may be spaced apart from each other so that the first tube 30 and the second tube 40 are fixed, and when the first channel 301 and the second channel 401 are not simultaneously filled with fluid, heat conduction between the first tube 30 and the second tube 40 is not directly generated, so that heat exchange efficiency and heat exchange effect between the first tube 30 and the second tube 40 and the energy recovery part 21, respectively, can be improved.

In some embodiments of the present invention, the first pipe 30 and the second pipe 40 may be made of a material having a specific heat capacity of 800J/(kg · K) or more, so as to improve heat exchange efficiency and heat exchange effect between the first pipe 30 and the second pipe 40 and the fluid, respectively. For example, the specific heat capacity may be 1000J/(kg. K), 1200J/(kg. K), 1500J/(kg. K), 1800J/(kg. K), 2000J/(kg. K), 3000J/(kg. K), or the like.

Optionally, in some embodiments, at least one of the third tube and the fourth tube may penetrate through the energy recovery portion 21 in the axial direction of the energy recovery portion 21 to form a straight-through wrapping, which may prevent the fluid in the third tube and the fourth tube from being conducted into the air, and is beneficial to reducing energy loss.

According to some embodiments of the invention, the energy recovery device 100 may further include a housing, the body 10 may be disposed inside the housing, and the housing may be made of a material having a specific heat capacity of 800J/(kg · K) or more. Therefore, the shell can wrap the body 10, energy is reduced to be conducted to air or other parts, and the energy recovery rate and the recycling rate are improved.

Alternatively, in some embodiments, the housing may be made of asbestos, which is more insulating and easier to machine.

The washing appliance according to the embodiment of the present invention includes the energy recovery device 100 for a washing appliance according to the embodiment of the present invention. Because the energy recovery device 100 for the washing appliance according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the washing appliance according to the embodiment of the present invention can realize the recovery, storage and reuse of energy, and has the advantages of high energy recovery rate, good energy storage effect, and energy recovery and energy reuse can be performed simultaneously or not simultaneously, so as to meet more use requirements.

Other constructions and operations of the washing appliance and the energy recovery device 100 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "particular embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy recovery device for a washing appliance, characterized in that it comprises:

the body is provided with a first channel, a second channel and an energy recovery part, the energy recovery part is made of materials with specific heat capacity of more than or equal to 800J/(kg-K), the energy recovery part is constructed to be suitable for exchanging heat with fluid in the first channel and transferring the heat or cold obtained by the heat or cold exchange to the fluid in the second channel, and the fluid can be introduced into the first channel and the second channel at the same time or not.

2. The energy recovery device for a washing appliance according to claim 1, characterized in that at least one of at least a portion of the first channel and at least a portion of the second channel extends spirally or linearly within the energy recovery portion.

3. The energy recovery device for a washing appliance according to claim 1, characterized in that said body comprises:

an energy recovery body, at least a portion of which constitutes the energy recovery portion;

the first pipe body is internally provided with the first channel and comprises a first pipe section which is in contact with the outer surface of the energy recovery part and/or a second pipe section which extends into the energy recovery part;

the second pipe body is internally provided with the second channel and comprises a third pipe section in contact with the outer surface of the energy recovery part and/or a fourth pipe section extending into the energy recovery part.

4. The energy recovery device for a washing appliance according to claim 3, wherein the outer surface of the energy recovery portion has a first fixing groove, at least a portion of the first pipe section is embedded in the first fixing groove; and/or

The outer surface of the energy recovery portion is provided with a second fixing groove, and at least one part of the third pipe section is embedded into the second fixing groove.

5. The energy recovery device for a washing appliance according to claim 4, characterized in that at least one of the first and second fixing grooves is semicircular in cross section, and at least one of the first and third tube segments is a hollow circular tube matching the semicircular shape.

6. The energy recovery device for a washing appliance according to claim 5, wherein at least one of the first tube section and the third tube section surrounds the outer surface of the energy recovery portion in a direction of spiral extension.

7. The energy recovery device for a washing appliance according to claim 6, wherein the first and third tube sections each extend helically in the same helical axis direction on the outer surface of the energy recovery portion and are spaced apart in the helical axis direction.

8. The energy recovery device for a washing appliance according to claim 3, wherein the first and second tubes are spaced apart.

9. The energy recovery device for a washing appliance according to claim 3, characterized in that said first tubular body and said second tubular body are made of a material having a specific heat capacity of 800J/(kg-K) or more.

10. The energy recovery device for a washing appliance according to claim 1, characterized in that it further comprises:

the body is arranged in the shell, and the shell is made of a material with the specific heat capacity of more than or equal to 800J/(kg.K).

11. The energy recovery device for a washing appliance according to claim 1, characterized in that said energy recovery portion is made of asbestos.

12. A washing appliance, characterized in that it comprises an energy recovery device for a washing appliance according to any one of claims 1-11.