Cleaning device with heat recovery function
By designing a heat conduction wall and heat recovery device for shared heating components in the dishwasher, the problem of increasing cleaning difficulty and energy consumption of existing dishwasher heating components is solved, and heat recovery and energy saving effects are achieved.
Patent Information
- Application Number
- CN202421545266.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The washing water tank and rinsing water tank of existing dishwashers are usually set up separately and are equipped with independent heating components, which increases the difficulty of cleaning and safety risks. At the same time, since the metal box is easy to dissipate heat, it is necessary to continuously heat to maintain the water temperature, resulting in high energy consumption.
A cleaning device with heat recovery is designed, by contacting the water tank walls of the washing box and the rinsing box to form a heat conduction wall, sharing the heat source of the same heating component, and using a heat recovery device to exchange the overflowing hot washing water with cold water to achieve heat recovery.
The addition of additional heating mechanism is avoided, which reduces the complexity and total cost of the cleaning device. At the same time, energy saving and consumption reduction are achieved through heat recovery, and the cleaning effect is improved.
Smart Images
Figure CN222840993U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dishwashers, in particular to a cleaning device with heat recovery. Background Art
[0002] A dishwasher is a common kitchen cleaning device that usually uses water to wash and rinse tableware to remove grease and food residues on the tableware. It is generally equipped with a washing water tank and a rinsing water tank. The rinsing water tank mainly contains high-temperature water, and the water temperature of the rinsing water tank is usually higher than that of the washing water tank.
[0003] The washing water tank and rinsing water tank of an existing dishwasher are generally set separately, and heating components are often set in both the washing water tank and the rinsing water tank to ensure heating efficiency and cleaning effect. The heating component in the washing water tank increases the difficulty of cleaning and the safety issue of touching the heating component during use. In addition, since the box structure material of the washing water tank and the rinsing water tank is generally metal, which is easy to dissipate heat, continuous heating is required to ensure that the heat dissipation itself does not cause the water temperature to drop too quickly, which consumes a lot of energy. Utility Model Content
[0004] To this end, in order to solve the above-mentioned problem, the utility model provides a cleaning device with heat recovery. Not only does the water in the rinsing box and the washing box form heat conduction and share the heat source formed by the same heating component to avoid adding an additional heating mechanism to maintain the water temperature in the washing box, but also through the heat exchange of the heat recovery device, the hot washing water overflowing from the washing box into the waste pipe and the cold water connected to the water inlet pipe from the external water source generate heat exchange and heat conduction to achieve heat recovery.
[0005] To achieve the above purpose, the technical solution provided by the utility model is as follows:
[0006] The utility model discloses a cleaning device with heat recovery, comprising a washing box for washing objects to be washed and a rinsing box provided with a heating component, the heating component is used to heat the water in the rinsing box, the rinsing box is used to supply the heated water and transport it to the washing box or for rinsing, and also comprises a heat recovery device; at least one water tank wall of the washing box and the rinsing box is in contact with each other or shared to form a heat conduction wall, so that the water in the washing box and the water in the rinsing box form a heat conduction arrangement; the rinsing box has a rinsing water inlet for connecting to an external water source, the washing box has a waste overflow outlet for discharging washing water, the rinsing water inlet is equipped with a water inlet pipe, the waste overflow outlet is equipped with a waste pipe, the water inlet pipe and the waste pipe are both connected to the heat recovery device, and the cold water in the water inlet pipe and the hot water in the waste pipe form heat exchange through the heat recovery device to form a heat recovery arrangement.
[0007] Furthermore, the heat recovery device has a matching first heat exchange pipeline and a second heat exchange pipeline; one end of the first heat exchange pipeline is connected to the water inlet pipe, and the other end is used for an external water source; one end of the second heat exchange pipeline is connected to the waste pipe, and the other end is used to discharge waste water.
[0008] Furthermore, the washing box and the rinsing box are both provided with a water level sensor assembly for sensing the water level thereof, the water level sensor assembly comprises a high water level sensor and a low water level sensor, and one end of the first heat exchange pipeline connected to an external water source is equipped with a switch valve.
[0009] Furthermore, a water temperature sensor for sensing water temperature is provided in the washing box; and / or a water temperature sensor for sensing water temperature is provided in the rinsing box.
[0010] Furthermore, the washing box has a first water outlet for circulating washing water and is equipped with a spray assembly for spraying the washed objects; the spray assembly has a first water inlet for circulating washing water, and the first water inlet and the first water outlet are connected through a washing pump.
[0011] Furthermore, the rinse tank has a second water outlet for supplying water, the spray assembly has a second water inlet for receiving heated water in the rinse tank, and the second water outlet and the second water inlet are connected through a rinse pump.
[0012] Further, the rinsing tank is surrounded or partially surrounded by the washing tank.
[0013] Furthermore, the outer wall of the washing box and / or the rinsing box is wrapped with a thermal insulation layer for thermal insulation.
[0014] Furthermore, the thermal insulation layer is a foamed plastic layer, a foamed rubber layer, an aerogel layer or a thermal insulation mortar layer.
[0015] Furthermore, the rinse tank is provided with a rinse overflow port for overflow and exhaust; or the rinse tank is provided with an overflow port for overflow and an exhaust port for exhaust; the height of the rinse overflow port or the overflow port and the exhaust port is higher than the high water level of the rinse tank.
[0016] The technical solution provided by the utility model has the following beneficial effects:
[0017] By making at least one water tank wall of the washing tank and the rinsing tank contact or share each other to form a heat conduction wall, heat conduction can be achieved between the water in the rinsing tank and the water in the washing tank, and the heat source formed by the same heating component can be shared, so as to avoid adding an additional heating mechanism to maintain the water temperature in the washing tank, while reducing the complexity and total cost of the cleaning device of the utility model.
[0018] Then, through the heat exchange of the heat recovery device, the hot washing water overflowing from the washing box into the waste pipe will undergo heat exchange and heat conduction with the cold water from the external water source connected to the water inlet pipe, so as to preheat the cold water in the water inlet pipe, that is, to recover the heat of the hot washing water in the waste pipe, thereby achieving energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Shown is a schematic diagram of a cleaning device with heat recovery in an embodiment. DETAILED DESCRIPTION
[0020] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0021] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.
[0022] Reference Figure 1 As shown, the present embodiment is a cleaning device with heat recovery (hereinafter referred to as the cleaning device), the cleaning device includes a washing tank 1 for washing objects to be cleaned and a rinsing tank 2 provided with a heating component, the heating component is used to heat the water in the rinsing tank 2, the rinsing tank 2 is used to supply the heated water and transport it to the washing tank 1, or for rinsing, the cleaning device also includes a heat recovery device 3, a water tank wall of the washing tank 1 and the rinsing tank 2 are in contact with each other, that is, the water tank side walls of the washing tank 1 and the rinsing tank 2 are in contact and jointly form a heat conduction wall 23, so that the water in the washing tank 1 and the rinsing tank 2 form a heat conduction arrangement, and the heat source formed by sharing the same heating component is used to achieve the heat transfer of the heated water in the rinsing tank 2 to the washing water in the washing tank 1.
[0023] The rinse tank 2 has a rinse water inlet 21 for an external water source, and the washing tank 1 has a waste overflow port 11 for discharging washing water. The rinse water inlet 21 is equipped with a water inlet pipe, and the waste overflow port 11 is equipped with a waste pipe 6. The water inlet pipe and the waste pipe 6 are both connected to the heat recovery device 3, and the cold water in the water inlet pipe and the hot water in the waste pipe 6 form a heat exchange through the heat recovery device 3 to form a heat recovery device.
[0024] The cleaning device of this embodiment is a dishwasher, and the specific objects to be cleaned are tableware such as bowls and plates that are stained with oil and food residues.
[0025] The washing box 1 has a first water outlet 12 for circulating washing water, and a spray assembly 8 for spraying the washed objects is provided in the water tank of the washing box 1. The specific spray assembly 8 is a sprayer belonging to the prior art, and includes a rinsing spray head 81 and a washing spray head 82. The washing spray head 82 of the spray assembly 8 has a first water inlet for circulating washing water, and the first water inlet and the first water outlet 12 are connected through a washing pump 10 and a water pipe matched therewith.
[0026] The rinsing tank 2 has a second water outlet 22 for supplying water, and the rinsing spray head 81 of the spray assembly 8 has a second water inlet for receiving the heated water in the rinsing tank 2. The second water outlet 22 and the second water inlet are connected through a rinsing pump 9 and a water pipe matched therewith.
[0027] The washing spray head 82 further has a washing spray port corresponding to the first water inlet, and the rinsing spray head 81 further has a rinsing spray port corresponding to the second water inlet.
[0028] By bringing at least one water tank wall of the washing tank 1 and the rinsing tank 2 into contact with each other, heat conduction is achieved between the water in the rinsing tank 2 and the washing tank 1, and the heat source formed by the same heating component is shared, so as to avoid adding an additional heating mechanism to maintain the water temperature in the washing tank 1, while reducing the complexity and total cost of the cleaning device.
[0029] Then, through the heat exchange of the heat recovery device 3, the hot washing water overflowing from the washing box 1 into the waste pipe 6 will undergo heat exchange and heat conduction with the cold water from the external water source connected to the water inlet pipe, so as to preheat the cold water in the water inlet pipe, that is, to recover the heat of the hot washing water in the waste pipe 6, thereby achieving energy saving effect or reducing energy consumption during the cleaning process.
[0030] In addition, the heat continuously transferred from the rinsing box 2 to the washing box 1 can maintain the water temperature in the washing box 1 within a relatively high range, thereby improving the cleaning effect of the cleaning device.
[0031] Of course, in other embodiments, the side walls of the washing tank 1 and the rinsing tank 2 may have multiple surfaces that are in contact with each other, such as the body of the washing tank 1 surrounds the body of the rinsing tank 2, or more than two side walls of the water tank of the washing tank 1 contact one by one with the corresponding side walls of the water tank of the rinsing tank 2, or the rinsing tank 2 is partially surrounded by the washing tank 1, so that heat conduction can also be achieved.
[0032] In another preferred embodiment, the heat recovery device 3 has a first heat exchange pipeline and a second heat exchange pipeline that match each other. One end of the first heat exchange pipeline is connected to the water inlet pipe, and the other end is used to connect to an external water source. Specifically, the water inlet pipe includes a first water inlet pipe 51 and a second water inlet pipe 52. The water outlet end of the first heat exchange pipeline and the rinse water inlet 21 of the rinse box 2 are connected through the first water inlet pipe 51. The water inlet end of the first heat exchange pipeline is equipped with a second water inlet pipe 52 for connecting to an external water source.
[0033] One end of the second heat exchange pipeline is connected to the waste pipe 6 , and the other end is used to discharge waste water, that is, the other end of the second heat exchange pipeline serves as a waste water discharge port 31 .
[0034] In another preferred embodiment, the outer walls of the washing box 1 and the rinsing box 2 are wrapped with a thermal insulation layer 4 for heat preservation and insulation. Specifically, the thermal insulation layer 4 is a foamed polyurethane layer to effectively prevent heat loss, thereby further improving energy utilization.
[0035] Of course, in other embodiments, the thermal insulation layer 4 may be a foam rubber layer or other foam plastic layer, or may be an aerogel layer or a thermal insulation mortar layer.
[0036] Furthermore, when the rinsing box 2 is completely surrounded by the washing box 1 , it is only necessary to wrap the outer wall of the washing box 1 with thermal insulation material.
[0037] In a specific preferred embodiment, the rinsing box 2 and the washing box 1 are integrally formed into a box body, and a heat conduction wall 23 is provided in the box body to separate the rinsing box 2 and the washing box 1. Therefore, the structure of the cleaning device is simple to reduce the complexity of the cleaning device and reduce the manufacturing and maintenance costs. At the same time, the operation is simpler, which can improve the user experience.
[0038] Further preferably, the rinse tank 2 is provided with a rinse overflow port for overflow and exhaust, and the height of the rinse overflow port is higher than the high water level of the rinse tank 2, so that the rinse tank 2 can replenish water to the washing tank 1 through the rinse overflow port.
[0039] Of course, in other embodiments, the rinsing box 2 may also be provided with an overflow port for overflowing water and an exhaust port for exhausting air, which are arranged separately.
[0040] More specifically, both the washing box 1 and the rinsing box 2 are provided with a water level sensor assembly for sensing the water level thereof, the water level sensor assembly comprising a high water level sensor and a low water level sensor, the second water inlet pipe 52 is equipped with a switch valve 7, and both the washing box 1 and the rinsing box 2 are provided with a water temperature sensor for sensing the water temperature. Of course, in other embodiments, only the rinsing box 2 may be provided with a water temperature sensor.
[0041] In this specific embodiment, the specific switch valve 7 is a solenoid valve or other electric valve, and the cleaning device also includes a general control system belonging to the prior art. The heating component, the rinsing pump 9, the washing pump 10, the switch valve 7, the water temperature sensors in the washing box 1 and the rinsing box 2, and the water level sensor components in the washing box 1 and the rinsing box 2 are coordinated to open and close respectively through the general control system to achieve washing and rinsing according to a preset program.
[0042] When the water temperature sensor in the washing tank 1 senses that the water temperature therein is lower than the set washing water temperature, and the water temperature sensor in the rinsing tank 2 senses that the water temperature therein reaches or exceeds the set water replenishment temperature, the rinsing tank 2 keeps filling with water so that the hot water in the rinsing tank 2 overflows into the washing tank 1; or the rinsing pump 9 is started for rinsing spray, and then the hot water flows into the washing tank 1, thereby increasing the water temperature in the washing tank 1.
[0043] Cold water flows through the first heat exchange pipe, and hot washing water flows through the second heat exchange pipe at the same time. The heat of the hot washing water is transferred to the cold water through the heat transfer between the first heat exchange pipe and the second heat exchange pipe, so as to preheat the cold water in the first heat exchange pipe. The preheated water then flows into the first water inlet pipe 51, and then is transported to the rinse tank 2, so as to recover the heat of the hot washing water in the waste pipe 6.
[0044] During the design and operation of the entire cleaning device, its mechanical movement is optimized to ensure the normal and stable operation of each component of the cleaning device. For example, a control system consisting of a switch valve 7, a water temperature sensor, high and low water level sensors and a control panel is used to accurately control parameters such as the temperature and water flow of the rinse box 2 and the washing box 1 to achieve the best cleaning effect and the lowest energy consumption.
[0045] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.
Claims
1. A cleaning device with heat recovery, comprising a washing tank for washing objects to be washed and a rinsing tank provided with a heating component, wherein the heating component is used to heat water in the rinsing tank, and the rinsing tank is used to supply heated water and transport it to the washing tank or for rinsing, characterized in that: Also included is a heat recovery device; At least one wall of the washing box and at least one wall of the rinsing box are in contact with each other or shared to form a heat conduction wall, so that the water in the washing box and the water in the rinsing box form a heat conduction arrangement; The rinse box has a rinse water inlet for connecting to an external water source, and the washing box has a waste overflow for discharging washing water. The rinse water inlet is equipped with an inlet pipe, and the waste overflow is equipped with a waste pipe. The inlet pipe and the waste pipe are both connected to the heat recovery device, and the cold water in the inlet pipe and the hot water in the waste pipe form heat exchange through the heat recovery device to form a heat recovery device.
2. The cleaning device with heat recovery according to claim 1, characterized in that: The heat recovery device has a matching first heat exchange pipeline and a second heat exchange pipeline; one end of the first heat exchange pipeline is connected to the water inlet pipe, and the other end is used for an external water source; one end of the second heat exchange pipeline is connected to the waste pipe, and the other end is used to discharge waste water.
3. The cleaning device with heat recovery according to claim 2, characterized in that: The washing box and the rinsing box are both provided with a water level sensor assembly for sensing the water level thereof, the water level sensor assembly comprises a high water level sensor and a low water level sensor, and one end of the first heat exchange pipeline connected to an external water source is equipped with a switch valve.
4. The cleaning device with heat recovery according to claim 1, characterized in that: The washing box is provided with a water temperature sensor for sensing water temperature; and / or the rinsing box is provided with a water temperature sensor for sensing water temperature.
5. The cleaning device with heat recovery according to any one of claims 1 to 4, characterized in that: The washing box has a first water outlet for circulating washing water and is equipped with a spray assembly for spraying the washed objects; the spray assembly has a first water inlet for circulating washing water, and the first water inlet and the first water outlet are connected through a washing pump.
6. The cleaning device with heat recovery according to claim 5, characterized in that: The rinse tank has a second water outlet for supplying water, and the spray assembly has a second water inlet for receiving the heated water in the rinse tank. The second water outlet and the second water inlet are connected through a rinse pump.
7. The cleaning device with heat recovery according to any one of claims 1 to 4, characterized in that: The rinse tank is surrounded or partially surrounded by the wash tank.
8. The cleaning device with heat recovery according to any one of claims 1 to 4, characterized in that: The outer wall of the washing box and / or the rinsing box is wrapped with a thermal insulation layer for thermal insulation.
9. The cleaning device with heat recovery according to claim 8, characterized in that: The thermal insulation layer is a foamed plastic layer, a foamed rubber layer, an aerogel layer or a thermal insulation mortar layer.
10. The cleaning device with heat recovery according to any one of claims 1 to 4, characterized in that: The rinse tank is provided with a rinse overflow port for overflow and exhaust; or the rinse tank is provided with an overflow port for overflow and an exhaust port for exhaust; the height of the rinse overflow port or the overflow port and the exhaust port is higher than the high water level of the rinse tank.