CN-116965750-B - Cleaning system with heat recovery function

CN116965750BCN 116965750 BCN116965750 BCN 116965750BCN-116965750-B

Abstract

The invention provides a cleaning system with heat recovery, which comprises a cleaning machine box, a steam heat recovery device and a blowing and drying assembly, wherein steam in the cleaning machine box can enter a heat exchange box body through a steam inlet, the steam heat recovery device can recover heat of the steam in the heat exchange box body, a steam outlet is connected to the blowing and drying assembly, the blowing and drying assembly is provided with a blowing port, and the blowing port is used for blowing clean cleaning objects in the cleaning machine box. The steam after heat recovery treatment and the damp and hot gas generated by drying enter the cleaning machine box again, so that the effect of blowing clean cleaning objects can be achieved, the steam can be recycled again through the steam heat recovery device, and the recycling rate of the heat energy in the steam is improved. And the steam heat recovery device also comprises a heat storage loop, so that when the cleaning object is not in cleaning, namely the cleaning system is in a standby state, the heat recovery is realized, and the heat recovery rate is obviously improved.

Inventors

CHEN HU
WANG JUNJIE
WANG ZIRUN
WU ZHILE
Ruan Wantian

Assignees

厦门申颖科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20230831

Claims (8)

1. The cleaning system with the heat recovery function is characterized by comprising a cleaning machine box, a steam heat recovery device and a blowing and drying assembly, wherein a circulating fluid spray header, a blowing port, a cleaning fluid spray header and an annular air flue are sequentially arranged in the cleaning machine box according to the passing sequence of the cleaning objects, the steam heat recovery device comprises a heat exchange box body, the heat exchange box body comprises a steam inlet and a steam outlet, steam in the cleaning machine box can enter the heat exchange box body through the steam inlet, the steam heat recovery device can carry out heat recovery on the steam in the heat exchange box body, the steam outlet is connected to the blowing and drying assembly, the blowing and drying assembly comprises a blowing air flue and a drying air flue, the blowing air flue is provided with the blowing port, and the blowing air flue is used for blowing the cleaning objects in the cleaning machine box; the cleaning system further comprises a cleaning fluid tank, the steam heat recovery device further comprises a first liquid inlet pipeline, the cleaning fluid tank is connected with the first liquid inlet pipeline, the first liquid inlet pipeline comprises a steam heat exchange pipe, the steam heat exchange pipe penetrates through the heat exchange box body, and the steam heat exchange pipe can exchange heat with steam in the heat exchange box body, so that heat recovery of the steam in the heat exchange box body is achieved; The steam heat recovery device further comprises a heat storage backflow pipe, the first liquid inlet pipeline further comprises a first normal-temperature liquid inlet pipe, a liquid inlet box, a liquid inlet pump, a tee joint and a first preheating liquid inlet pipe, the liquid inlet box is provided with a liquid supplementing inlet, a backflow inlet and a liquid feeding outlet, the first normal-temperature liquid inlet pipe is connected to the liquid supplementing inlet of the liquid inlet box, the liquid feeding outlet of the liquid inlet box is connected to the steam heat exchange pipe, the outlet end of the steam heat exchange pipe is connected with the liquid inlet pump, the outlet of the liquid inlet pump is connected to the first end of the tee joint, the second end of the tee joint is connected to the heat storage backflow pipe, the heat storage backflow pipe is connected to the backflow inlet of the liquid inlet box, the third end of the tee joint is connected with the first preheating liquid inlet pipe, the first preheating liquid inlet pipe is connected to the cleaning fluid box, a valve is arranged on the heat storage backflow pipe, and the first preheating liquid inlet pipe is provided with a valve.
2. The washing system with heat recovery according to claim 1, wherein the air blowing and drying assembly and the steam outlet are further provided with a filtering device, the air blowing air duct further comprises a first guide and a first fan, the first guide, the first fan and the air blowing port are sequentially connected, the drying air duct is further provided with a second guide and a second fan, and the dehumidifying device, the heating device, the second guide, the second fan and the annular air duct are sequentially connected.
3. The washing system with heat recovery according to claim 2, wherein the first fan and the second fan are turned on or off, respectively, according to an operation mode of the system.
4. The washing system with heat recovery according to claim 1, wherein the annular air duct is arranged in the washing machine box around the washing object, and an annular opening is arranged in the direction of the center of the annular air duct.
5. The washing system with heat recovery as recited in claim 1, wherein said steam heat exchanging tube is disposed in a curved manner in said heat exchanging box.
6. The washing system with heat recovery according to claim 1, wherein the blowing air channel further comprises a first fan, the drying air channel further comprises a second fan, a temperature sensor and a humidity sensor are arranged in the heat exchange box body, when the temperature and the humidity of steam detected by the temperature sensor and the humidity sensor in the heat exchange box body are higher than a threshold value, at least one of the first fan and the second fan is started, and a valve on the heat storage return pipe and the liquid inlet pump are started successively.
7. The washing system with heat recovery according to claim 1, further comprising a waste liquid tank, wherein the washing fluid tank is further connected with a second liquid inlet pipeline, a valve is arranged on the second liquid inlet pipeline, the second liquid inlet pipeline comprises waste liquid heat exchange tubes, the waste liquid heat exchange tubes penetrate through the waste liquid tank and can exchange heat with waste liquid in the waste liquid tank, and the waste liquid heat exchange tubes are arranged in the waste liquid tank in a bending mode.
8. The washing system with heat recovery according to claim 7, wherein the first liquid inlet pipeline and the second liquid inlet pipeline are respectively provided with a temperature sensor for detecting the temperature of the fluid in the first liquid inlet pipeline and the second liquid inlet pipeline, when the fluid in the washing fluid box is insufficient and the temperature of the fluid in the first liquid inlet pipeline is higher than the temperature of the fluid in the second liquid inlet pipeline, a valve on the first preheating liquid inlet pipeline in the first liquid inlet pipeline is firstly opened, and when the fluid in the washing fluid box is insufficient and the temperature of the fluid in the second liquid inlet pipeline is higher than the temperature of the fluid in the first liquid inlet pipeline, the valve on the second liquid inlet pipeline is firstly opened.

Description

Cleaning system with heat recovery function Technical Field The invention relates to the field of cleaning systems, in particular to a cleaning system with heat recovery. Background The automatic dish washer is one kind of equipment to replace manual work to wash bowl, dish, cup, spoon, chopsticks, knife, fork, pot, shovel, etc. and has low labor strength, high work efficiency and high cleaning efficiency. The dish washer mainly sprays hot water through a spray pipe to clean tableware, and the water temperature generally reaches about 80 ℃ during spraying. Most of the dish washers in the prior art are used for directly heating cold water through a heating device and then conveying the heated cold water to a spray pipe, but the temperature of waste water after the dish washer is cleaned is about 50-60 ℃, and steam generated during spraying also has high temperature, so that the heat energy is recovered. The prior art includes systems that at least partially recover heat from such thermal energy. For example, in US3598131a, steam is removed from the dishwasher by suction through a suction removal device and is conveyed into the cavity and conducted via a heat exchanger. The heat exchanger is constructed of a porous material that is sprayed with fresh water. The condensed moisture is collected and fed back into the dishwasher. However, the steam subjected to heat recovery treatment still has certain humidity and temperature, and is discharged into the working environment to affect the temperature and humidity conditions of the working environment, thereby affecting the comfort and sanitation conditions of the working environment and causing waste of heat energy. Also, automatic dishwashers often have a standby state, i.e. the washing appliance is ready for operation without actually carrying out the washing process. During this time, at least one fluid tank for storing the cleaning fluid is typically pre-heated to provide for cleaning in normal operating conditions. In addition, after the high-temperature cleaning fluid is sprayed, residual steam still remains in the cleaning machine box, and the residual steam is generated, so that the steam heat energy in the standby state cannot be recovered in the prior art. Disclosure of Invention To this end, the present invention provides a cleaning system with heat recovery, in view of the above-mentioned problems. The invention is realized by the following scheme: The invention provides a cleaning system with heat recovery, which is characterized by comprising a cleaning machine box, a steam heat recovery device and a blowing and drying assembly, wherein a cleaning object can be cleaned and dried in the cleaning machine box, a circulating fluid spray head, a blowing port, a cleaning fluid spray head and an annular air flue are sequentially arranged in the cleaning machine box according to the passing sequence of the cleaning object, the steam heat recovery device comprises a heat exchange box body, the heat exchange box body comprises a steam inlet and a steam outlet, steam in the cleaning machine box can enter the heat exchange box body through the steam inlet, the steam heat recovery device can carry out heat recovery on steam in the heat exchange box body, the steam outlet is connected to the blowing and drying assembly, the blowing and drying assembly comprises a blowing air flue and a drying air flue, the blowing air flue is provided with the blowing port and is used for blowing clean cleaning objects in the cleaning machine box, and the drying air flue is provided with a dehumidifying device, a heating device and the annular air flue and is provided with the annular air flue and is used for blowing out drying objects in the cleaning and drying box. In one embodiment, the air blowing and drying assembly and the steam outlet further comprise a filtering device, the air blowing air duct further comprises a first guide and a first fan, the first guide, the first fan and the air blowing opening are sequentially connected, the drying air duct is further provided with a second guide and a second fan, and the dehumidifying device, the heating device, the second guide, the second fan and the annular air duct are sequentially connected. Wherein, in one embodiment, the first fan and the second fan can be turned on or off respectively according to the operation mode of the system. In one embodiment, the annular air duct is arranged in the cleaning machine case around the cleaning object, and an annular opening is arranged in the direction of the annular air duct towards the center. Wherein, in an embodiment, cleaning system still includes the washing fluid case, steam heat recovery device still includes first feed liquor pipeline, the washing fluid case is connected first feed liquor pipeline, first feed liquor pipeline contains steam heat exchange tube, steam heat exchange tube wears to locate in the heat exchange box, steam heat exchange tube can with the steam in the hea