Double-heat-source dish washing machine

Abstract

The utility model discloses a double-heat-source dish-washing machine, and relates to the technical field of dish-washing machines, in particular to a double-heat-source dish-washing machine which comprises a dish-washing machine body and an air energy body, a spraying mechanism is arranged in a dish-washing inner cavity of the dish-washing machine body, and the air energy body comprises an evaporator and a condenser. The double-heat-source dish washing machine further comprises a heat collection component. Hot air flow generated by the dish washing machine body is extracted through the fan assembly, and the hot air flow flows into the heat collection box; part of heat in the hot air flow is conducted into water in the water tank through the heat exchange assembly, and the water in the water tank is preheated. A refrigerant in an evaporator in an air energy body absorbs heat of hot air flow in a heat collection box, the air energy body recovers the heat of the hot air flow, and then a condenser in the air energy body transmits the heat to water in a water tank to heat the water in the water tank. Hot water in the water tank is supplied to the dish-washing machine body, and the purpose of efficiently recycling heat in the working process of the dish-washing machine is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a dual-heat-source dishwasher. Background Art

[0002] A dishwasher is a device for automatically cleaning 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. Commercial dishwashers can be divided into 5 major categories according to their structures: cabinet type, hood type, basket conveyor type, belt conveyor type, and ultrasonic type, which reduce the labor intensity of the cooking staff in restaurants, hotels, and canteens of government agencies and institutions, improve work efficiency, and enhance cleanliness and hygiene. Traditional industrial dishwashers require a large amount of hot water circulation during the dishwashing process. At present, the hot water mainly comes from electric heating, which requires a high-power heater, resulting in high electricity bills. In some places with low electrical loads, it cannot be installed, limiting the scope of application of the dishwasher. Moreover, the heat generated during the working process and the heat carried away when the washing water is discharged cannot be utilized, causing waste of energy.

[0003] In the publicly disclosed Chinese patent application, the publication number: CN212140375U, the patent name: Dual-heat-source air energy heating dishwasher. This prior art adopts a working closed-loop mode composed of a set of air energy compression system and two sets of air energy heating components. It can not only meet the heat supply of the rinsing chamber, but also supply heat to the cleaning chamber. The two sets of components can also work independently without logical influence on each other, and the power consumption is only one-fourth of that of ordinary electric heating tubes. It adopts two sets of air energy heat collection component modes to maximize the recovery and utilization of waste heat, save energy and reduce consumption, and is more environmentally friendly.

[0004] Although this prior art can realize the recovery and utilization of heat, there are certain limitations in the specific implementation process. In the specific implementation process of this prior art, an air energy heat collection component is used to collect the steam (and hot air flow) dissipated in the dishwasher, and the heat in these steam (and hot air flow) is absorbed by the low-temperature refrigerant in the pipeline of the air energy heat collector. Since the volume of steam (and hot air flow) generated during the dishwashing process by the dishwasher is large, and the collection capacity of the air energy heat collector is limited, the heat recovery in the steam (and hot air flow) is relatively limited, resulting in the loss of heat in some steam (and hot air flow) into the air, and the waste heat cannot be utilized efficiently. Summary of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a dual-heat-source dishwasher, which solves the problems raised in the above background art.

[0007] (II) Technical Solutions

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a dual-heat source dishwasher comprises a dishwasher body and an air energy body, a spray mechanism is provided in the dishwashing cavity of the dishwasher body, and the air energy body comprises an evaporator and a condenser; the dual-heat source dishwasher also comprises a heat collecting component, the heat collecting component is fixedly mounted on the dishwasher body, and the air flow inlet end of the heat collecting component is connected with the dishwashing cavity of the dishwasher body; the heat collecting component comprises a heat collecting box, a water tank, a heat exchange component, and a fan component, the fan component draws the hot air flow in the dishwashing cavity of the dishwasher body into the heat collecting box, the heat exchange component absorbs the heat in the hot air flow and transfers the heat to the water in the water tank; the air inlet end of the evaporator in the air energy body is connected with the inside of the heat collecting box, and the heat extraction end of the condenser in the air energy body is located in the water tank.

[0009] Optionally, the water tank is fixedly installed inside the thermal collecting box, a plurality of air flow holes are provided on the bottom wall of the thermal collecting box, and at least one exhaust port is provided on the upper side wall of the thermal collecting box.

[0010] Optionally, the fan assembly includes a motor and fan blades. The motor is fixedly mounted on a heat collecting box. The output shaft end of the motor is fixedly connected to a rotating shaft. The fan blades are fixedly mounted on an end of the rotating shaft away from the motor. The motor drives the fan blades to rotate. The rotation of the fan blades draws hot air flow in the washing cavity of the dishwasher body into the heat collecting box.

[0011] Optionally, the heat exchange assembly includes a heat exchange pipe and a driving component. One end of the heat exchange pipe is fixedly installed on one end of a water tank and the two are connected. The other end of the heat exchange pipe is fixedly installed on the other end of the water tank and the two are connected. A plurality of fins are fixedly connected to the outer wall of the heat exchange pipe. The driving component is arranged on the heat exchange pipe, and the driving component drives the water inside the heat exchange pipe to flow.

[0012] Optionally, the driving member is a micro water pump.

[0013] Optionally, the driving member includes a water pump cylinder, a piston plate, and a piston rod, wherein the piston plate is slidably arranged inside the water pump cylinder, the middle portion of the piston rod passes through a side wall of one end of the water pump cylinder and the two are slidably connected, and one end of the piston rod is fixedly connected to the piston plate.

[0014] Optionally, the piston plate separates the interior of the pump cylinder into a water storage chamber, and the motor is transmission-connected to the other end of the piston rod. The motor drives the piston rod to slide back and forth on the pump cylinder, and the piston rod pushes the piston plate to reciprocately compress the water storage chamber.

[0015] Optionally, the heat exchange pipe includes a first heat exchange pipe and a second heat exchange pipe. The outflow end of the first heat exchange pipe is communicated with the water storage cavity of the water pumping cylinder, and the inflow end of the second heat exchange pipe is communicated with the water storage cavity of the water pumping cylinder. One-way valves are arranged on both the first heat exchange pipe and the second heat exchange pipe.

[0016] Optionally, a water inlet pipe and a water outlet pipe are arranged on the water tank, and the water tank is communicated with the spraying mechanism of the dishwasher body through the water outlet pipe.

[0017] (III) Beneficial effects

[0018] The present utility model provides a dual heat source dishwasher, which has the following beneficial effects:

[0019] In this dual heat source dishwasher, through the coordinated setting of the dishwasher body, the air energy body, and the heat collection component, the dual heat source dishwasher has the effect of recovering the heat in the steam (and hot air flow) generated during the operation of the dishwasher. A large amount of steam (and hot air flow) is generated during processes such as washing dishes with hot water in the dishwasher body. The steam (and hot air flow) generated by the dishwasher body is extracted by the fan assembly and flows into the heat collection box. Part of the heat in the steam (and hot air flow) is conducted to the water in the water tank through the heat exchange component to preheat the water in the water tank, realizing the first heat recovery. The refrigerant in the evaporator of the air energy body absorbs the heat of the steam (and hot air flow) in the heat collection box, and the air energy body recovers the heat of the steam (and hot air flow). Subsequently, the condenser in the air energy body conducts the heat to the water in the water tank to heat the water in the water tank, realizing the second heat recovery. The hot water in the water tank is supplied to the dishwasher body, achieving the purpose of highly efficient recovery and utilization of heat during the operation of the dishwasher, saving energy and being environmentally friendly. Compared with the prior art, the heat recovery rate is higher. Description of the drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the dual heat source dishwasher of the present utility model;

[0022] Figure 2 It is a sectional structural schematic diagram of the air energy box in the dual heat source dishwasher of the present utility model;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the heat exchange pipe in the dual heat source dishwasher of the present utility model;

[0024] Figure 4 is Figure 3 The enlarged structural schematic diagram at position A in

[0025] In the figure: 1, dishwasher body; 2, motor; 3, heat collection box; 4, first heat exchange tube; 5, water pumping cylinder; 6, support column; 7, spring; 8, baffle; 9, fan blade; 10, cam; 11, rotating shaft; 12, water tank; 13, piston plate; 16, second heat exchange tube; 17, water inlet pipe; 19, water outlet pipe; 21, piston rod; 22, air energy body. Specific embodiments

[0026] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0028] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a dual-source dishwasher, including a dishwasher body 1 and an air energy body 22. A spraying mechanism is provided in the dishwashing cavity of the dishwasher body 1, and the air energy body 22 includes an evaporator and a condenser.

[0029] Among them, the dishwasher body 1 adopts the patent with the publication number CN206641826U and the patent name of a commercial dishwasher. The air energy body 22 adopts the patent with the publication number CN209960757U and the patent name of an air energy heat pump.

[0030] The dual-heat-source dishwasher further includes a heat collection component, which is fixedly installed on the dishwasher body 1, and the air inflow end of the heat collection component is communicated with the dishwashing cavity of the dishwasher body 1.

[0031] The heat collection component includes a heat collection box 3, a water tank 12, a heat exchange component, and a fan component. The fan component extracts the hot air flow in the dishwashing cavity of the dishwasher body 1 and enters it into the heat collection box 3. The heat exchange component absorbs the heat in the hot air flow and transfers the heat to the water in the water tank 12.

[0032] Among them, a large amount of steam (and hot air flow) is generated during processes such as washing dishes with hot water in the dishwasher body 1. The steam (and hot air flow) produced by the dishwasher body 1 is extracted by the fan component and flows into the heat collection box 3. Part of the heat in the steam (and hot air flow) is conducted to the water in the water tank 12 through the heat exchange component to preheat the water in the water tank 12, realizing the first heat recovery. That is, the heat recovered this time is the first heat source. The heat collection box 3 is used to collect the steam (and hot air flow). The fan component is used to transport the hot air flow and steam in the dishwashing cavity of the dishwasher body 1 to the heat collection box 3. The heat exchange component is used to conduct the heat in the steam (and hot air flow) to the water in the water tank 12.

[0033] The air inflow end of the evaporator in the air source heat pump body 22 is communicated with the inside of the heat collection box 3, and the heat export end of the condenser in the air source heat pump body 22 is located inside the water tank 12. The water tank 12 is provided with a water inlet pipe 17 and a water outlet pipe 19, and the water tank 12 is communicated with the spraying mechanism of the dishwasher body 1 through the water outlet pipe 19.

[0034] Among them, the refrigerant in the evaporator of the air source heat pump body 22 absorbs the heat of the steam (and hot air flow) in the heat collection box 3, and the air source heat pump body 22 recovers the heat of the steam (and hot air flow). Then, the condenser in the air source heat pump body 22 conducts the heat to the water in the water tank 12 to heat the water in the water tank 12, realizing the second heat recovery. That is, the heat recovered this time is the second heat source. The hot water in the water tank 12 is used to supply the spraying mechanism of the dishwasher body 1, and the spraying mechanism sprays hot water on the tableware for dishwashing operations, achieving the purpose of efficient heat recovery and utilization during the working process of the dishwasher, saving energy and protecting the environment.

[0035] Specifically, the water tank 12 is fixedly installed inside the heat collection box 3. A plurality of air flow holes are opened on the bottom wall of the heat collection box 3, and at least one air outlet is opened on the upper side wall of the heat collection box 3.

[0036] Among them, the steam (and hot air flow) in the dishwashing cavity of the dishwasher body 1 flows into the heat collection box 3 through the air flow holes. The air outlet on the heat collection box 3 is used to balance the air pressure inside and outside the heat collection box 3 to prevent the pressure difference inside and outside the heat collection box 3 from being too large.

[0037] Specifically, the fan assembly includes a motor 2 and fan blades 9. The motor 2 is fixedly mounted on the heat collecting box 3. The output shaft end of the motor 2 is fixedly connected to a rotating shaft 11. The rotating shaft 11 is rotatably connected to the heat collecting box 3. The fan blades 9 are fixedly mounted on an end of the rotating shaft 11 away from the motor 2. The motor 2 drives the fan blades 9 to rotate. The fan blades 9 rotate to draw the hot air flow in the dishwashing cavity of the dishwasher body 1 into the heat collecting box 3.

[0038] After the motor 2 is started, the fan blades 9 are driven to rotate through the rotating shaft 11 , and the rotation of the fan blades 9 drives the steam (and the hot air flow) to flow into the heat collecting box 3 .

[0039] Specifically, the heat exchange assembly includes a heat exchange pipe and a driving component. One end of the heat exchange pipe is fixedly installed with one end of the water tank 12 and the two are connected. The other end of the heat exchange pipe is fixedly installed with the other end of the water tank 12 and the two are connected. A plurality of fins are fixedly connected to the outer wall of the heat exchange pipe. The driving component is arranged on the heat exchange pipe, and the driving component drives the water inside the heat exchange pipe to flow.

[0040] The heat exchange pipe is fixedly mounted on the inner bottom wall of the heat collecting box 3. After the steam and hot air flow enter the heat collecting box 3, the heat exchange pipe is heated. The heat exchange pipe absorbs the heat and conducts the heat to the water. Each fin is used to enhance the heat exchange and improve the heat exchange efficiency. The driving member is used to drive the water flow in the heat exchange pipe.

[0041] More specifically, the driving member is a micro water pump.

[0042] One end of the heat exchange pipe is connected to one end of the water tank 12, the other end of the heat exchange pipe is connected to the inflow end of the micro water pump, and the outflow end of the micro water pump is connected to the water tank 12. The micro water pump is started to drive the water to flow.

[0043] More specifically, the driving member includes a pumping cylinder 5, a piston plate 13, and a piston rod 21. The piston plate 13 is slidably arranged inside the pumping cylinder 5. The middle part of the piston rod 21 penetrates the side wall of one end of the pumping cylinder 5 and the two are slidably connected. One end of the piston rod 21 is fixedly connected to the piston plate 13. The piston plate 13 separates the inside of the pumping cylinder 5 into a water storage chamber. The motor 2 is in transmission connection with the other end of the piston rod 21. The motor 2 drives the piston rod 21 to slide back and forth on the pumping cylinder 5. The piston rod 21 pushes the piston plate 13 to reciprocate and compress the water storage chamber. The heat exchange exhaust pipe includes a first heat exchange tube 4 and a second heat exchange tube 16. The outflow end of the first heat exchange tube 4 is connected to the water storage chamber of the pumping cylinder 5, and the inflow end of the second heat exchange tube 16 is connected to the water storage chamber of the pumping cylinder 5. A one-way valve is arranged on the first heat exchange tube 4 and the second heat exchange tube 16. The pumping cylinder 5 is fixedly connected to the inner bottom wall of the heat collecting box 3 through a plurality of support columns 6.

[0044] Among them, the one-way valve is used to make the water in the first heat exchange tube 4 and the second heat exchange tube 16 flow unidirectionally. After the motor 2 is started, it drives the piston rod 21 to slide reciprocally on the water pumping cylinder 5. When the piston rod 21 slides reciprocally, it pushes the piston plate 13 to slide reciprocally in the water pumping cylinder 5, and the piston plate 13 reciprocally compresses the water storage cavity. When the piston plate 13 compresses the water storage cavity, the water in the water storage cavity flows into the water tank 12 through the second heat exchange tube 16. When the piston plate 13 expands the water storage cavity, the space in the water storage cavity becomes larger and the pressure becomes smaller, and the water in the water tank 12 flows into the water storage cavity through the first heat exchange tube 4. When the piston plate 13 compresses the water storage cavity again, the water in the water storage cavity flows into the water tank 12 again through the second heat exchange tube 16, thereby realizing the circulating flow of the water in the water tank 12, enabling the water in the water tank 12 to circulate and exchange heat, and continuously absorbing heat.

[0045] Further specifically, a baffle 8 is fixedly connected to one end of the piston rod 21 away from the piston plate 13. A spring 7 is sleeved on the outer side wall of the piston rod 21. One end of the spring 7 abuts against the baffle 8, and the other end of the spring 7 abuts against the water pumping cylinder 5. One end of the rotating shaft 11 away from the motor 2 is fixedly connected with a cam 10, and the cutting plane of the cam 10 is elliptical. The outer peripheral side edge of the cam 10 abuts against the baffle 8.

[0046] Among them, the motor 2 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the cam 10 to rotate, and during the rotation of the cam 10, its convex end pushes the baffle 8 to reciprocate. The baffle 8 drives the piston rod 21 to reciprocate, and the piston rod 21 drives the piston plate 13 to slide reciprocally in the water pumping cylinder 5, that is, the piston plate 13 reciprocally compresses the water storage cavity of the water pumping cylinder 5.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A dual-heat source dishwasher, comprising a dishwasher body (1) and an air energy body (22), wherein a spray mechanism is arranged in the dishwashing cavity of the dishwasher body (1), and the air energy body (22) comprises an evaporator and a condenser, It is characterized in that: It also comprises a heat collecting component, which is fixedly mounted on the dishwasher body (1), and the air flow inflow end of the heat collecting component is connected to the dishwashing cavity of the dishwasher body (1); The heat collection component comprises a heat collection box (3), a water tank (12), a heat exchange component, and a fan component. The fan component draws hot air from the inner cavity of the dishwasher body (1) into the heat collection box (3). The heat exchange component absorbs heat from the hot air and transfers the heat to water in the water tank (12). The air inlet end of the evaporator in the air energy body (22) is connected to the interior of the heat collecting box (3), and the heat outlet end of the condenser in the air energy body (22) is located in the water tank (12).

2. The dual-heat-source dishwasher according to claim 1, wherein: The water tank (12) is fixedly installed inside the heat collecting box (3); a plurality of air flow holes are provided on the bottom wall of the heat collecting box (3); and at least one exhaust port is provided on the upper side wall of the heat collecting box (3).

3. The dual-heat-source dishwasher according to claim 2, wherein: The fan assembly comprises a motor (2) and a fan blade (9); the motor (2) is fixedly mounted on a heat collecting box (3); an output shaft end of the motor (2) is fixedly connected to a rotating shaft (11); the fan blade (9) is fixedly mounted on an end of the rotating shaft (11) away from the motor (2); the motor (2) drives the fan blade (9) to rotate; the fan blade (9) rotates to draw hot air flow in the dishwashing cavity of the dishwasher body (1) into the heat collecting box (3).

4. The double heat source dishwasher according to claim 3, characterized in that: The heat exchange assembly comprises a heat exchange pipe and a driving member, one end of the heat exchange pipe is fixedly mounted on one end of a water tank (12) and the two are connected, the other end of the heat exchange pipe is fixedly mounted on the other end of the water tank (12) and the two are connected, a plurality of fins are fixedly connected to the outer wall of the heat exchange pipe, and the driving member is arranged on the heat exchange pipe, and the driving member drives the water inside the heat exchange pipe to flow.

5. The dual heat source dishwasher according to claim 4, wherein: The driving member is a micro water pump.

6. The dual-heat-source dishwasher according to claim 4, wherein: The driving member comprises a water pumping cylinder (5), a piston plate (13), and a piston rod (21); the piston plate (13) is slidably arranged inside the water pumping cylinder (5); the middle portion of the piston rod (21) passes through a side wall of one end of the water pumping cylinder (5) and the two are slidably connected; one end of the piston rod (21) is fixedly connected to the piston plate (13).

7. The dual-heat-source dishwasher according to claim 6, wherein: The piston plate (13) separates the interior of the water pumping cylinder (5) into a water storage chamber, and the motor (2) is in transmission connection with the other end of the piston rod (21). The motor (2) drives the piston rod (21) to slide back and forth on the water pumping cylinder (5), and the piston rod (21) pushes the piston plate (13) to reciprocate and compress the water storage chamber.

8. The dual heat source dishwasher according to claim 6, wherein: The heat exchange pipe comprises a first heat exchange pipe (4) and a second heat exchange pipe (16); the outflow end of the first heat exchange pipe (4) is connected to the water storage chamber of the pumping cylinder (5), and the inflow end of the second heat exchange pipe (16) is connected to the water storage chamber of the pumping cylinder (5); and both the first heat exchange pipe (4) and the second heat exchange pipe (16) are provided with a one-way valve.

9. The double heat source dishwasher according to claim 1, characterized in that: A water inlet pipe (17) and a water outlet pipe (19) are arranged on the water tank (12), and the water tank (12) is communicated with the spraying mechanism of the dishwasher body (1) through the water outlet pipe (19).

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