Intelligent drainage method of kitchen waste processor

Abstract

The application discloses a kind of intelligent drainage methods of kitchen waste processor, comprising the following steps: S10, build drying type kitchen waste treatment system;The system includes heating device, temperature sensing device, processing container, drainage device and PCBA circuit board including signal acquisition and control;S20, test system: simulate the real working environment of system, draw the real-time heating power of the kitchen waste processor with time relationship curve;S30, place kitchen waste, the kitchen waste needing drying is placed in processing container, while starting heating device to dry the kitchen waste;S40, judge the residual water amount in the processing container, start drainage device to discharge it before the residual water amount reaches safety limit.The beneficial effects of the present application are: improve the drainage accuracy and reliability of kitchen waste processor.

Description

Technical Field

[0001] This invention relates to the field of kitchen waste treatment technology, and more specifically, to an intelligent drainage method for a kitchen waste processor. Background Technology

[0002] Food waste disposers use heating elements to evaporate the moisture in the food waste inside the disposer container. At the same time, the evaporated water vapor is transported to the odor filtration system through the exhaust system and finally discharged outside the machine, achieving the purpose of killing bacteria and reducing weight and volume.

[0003] During operation, some of the water vapor produced by these types of food waste disposers liquefies into water when it is expelled from the machine. This water accumulates inside the machine, posing a risk of pipe blockage, bacterial growth, and damage to mechanical and electronic equipment. Therefore, it is often necessary to add valves or pumps to drain the accumulated water to the outside of the pipes.

[0004] Regarding the choice of drainage strategy, if the drainage frequency is too low, it may cause untimely drainage and pipe blockage; however, if a higher drainage frequency is chosen, there will be no water and empty drainage, resulting in the discharge of unfiltered garbage odors, while also increasing the noise when valves or pumps are started. On the other hand, choosing to use a solution with relevant liquid sensors will first increase the product cost, and at the same time, in the environment of high temperature, high humidity, and acid and alkali corrosive kitchen waste vapor, the reliability and accuracy of the sensors will be greatly reduced, and damage or false triggering will frequently occur. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides an intelligent drainage method for food waste disposers, which improves the drainage accuracy and reliability of food waste disposers.

[0006] The technical solution adopted by this invention to solve its technical problem is: an intelligent drainage method for a kitchen waste disposer, wherein the improvement is that the method includes the following steps:

[0007] S10, Build a drying-type kitchen waste treatment system; the system includes a heating device, a temperature sensing device, a treatment container, a drainage device, and a PCBA circuit board containing signal acquisition and control;

[0008] S20, Test System: Simulate the real working environment of the system and plot the real-time heating power versus time curve of the food waste processor;

[0009] S30, Place kitchen waste in the processing container and turn on the heating device to dry the kitchen waste.

[0010] S40, determine the amount of residual water in the treatment container, and activate the drainage device to discharge the residual water before it reaches a safe limit. The method includes:

[0011] S401, the initial heating power of the processing container is measured by a temperature sensing device, and the initial water volume in the drainage device is measured;

[0012] S402, turn on the heating device, measure and record the real-time heating power of the processing container through the temperature sensing device, and measure the real-time water volume in the drainage device.

[0013] S403, calculate the cumulative energy supplied by the heating device based on the relationship curve, and calculate the energy exchanged between the processing container and the outside environment to obtain the water residue result of the kitchen waste processor.

[0014] Furthermore, in step S10, the airflow direction between the fan and the processing container is the same, and there is a sealed or semi-sealed structure between the inside of the processing container and the fan to ensure that the fan can draw air from the direction toward the processing container and discharge it away from the processing container.

[0015] Furthermore, the aforementioned PCBA circuit board includes switching circuits for controlling the fan and heating device, as well as sampling circuits for the fan's current or speed.

[0016] Furthermore, the aforementioned drying-type kitchen waste treatment system also includes a fan, a filter device, and an exhaust pipe.

[0017] Furthermore, in step S30, the kitchen waste is evenly distributed within the processing container.

[0018] Furthermore, S403 includes: subtracting the energy of heat exchange between the processing container and the outside from the cumulative energy supplied by the heating device to obtain the energy for water vapor generation from water liquefaction in the processing container; calculating the energy required to reach the set safe water volume for the liquefied water in the processing container; comparing the energy for water vapor generation from water liquefaction in the processing container with the energy required to reach the set safe water volume for the liquefied water in the processing container to obtain the water residue result of the food waste processor.

[0019] Furthermore, the residual water result of the food waste disposer includes a first residual result and a second residual result, wherein the first residual result indicates that the residual water in the food waste disposer exceeds the set safe water level and the drainage device needs to be opened to drain the water; the second residual result indicates that the residual water in the food waste disposer does not exceed the set safe water level and no drainage is required.

[0020] Furthermore, the first residual result is that the energy required for the water vapor produced by the liquefaction of water in the treatment container is greater than the energy required for the liquefied water in the treatment container to reach the set safe water volume; the second residual result is that the energy required for the water vapor produced by the liquefaction of water in the treatment container is less than the energy required for the liquefied water in the treatment container to reach the set safe water volume.

[0021] Furthermore, the calculation of the energy required to treat the liquefied water in the container when the set safe water volume is reached includes: calculating the amount of water that needs to be vaporized before reaching the set safe water volume based on the set safe water volume and the proportion of liquid water vaporizing into water vapor; the proportion of liquid water vaporizing into water vapor is obtained through multiple experimental tests; and calculating the energy required to treat the liquefied water in the container when the set safe water volume is reached based on the amount of water that needs to be vaporized before reaching the set safe water volume and the energy required for vaporization per unit mass of water under standard conditions.

[0022] Furthermore, the cumulative energy supplied by the heating device is obtained through integral calculation.

[0023] The beneficial effect of this invention is that it determines the amount of liquefied water in the processing container based on the output power of the food waste disposer, intelligently senses the amount of water accumulating in the pipe, and starts the valve or water pump to discharge it before the accumulation reaches the safety limit, which greatly improves the drainage accuracy and reliability of the food waste disposer. Attached Figure Description

[0024] Figure 1 This is an overall flowchart of an intelligent drainage method for a food waste disposer according to the present invention;

[0025] Figure 2 This is a schematic diagram showing the real-time heating power versus time curve of an intelligent drainage method for a food waste disposer according to the present invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0028] Reference Figure 1-2 As shown, this solution discloses an intelligent drainage method for a food waste disposer, the method comprising the following steps:

[0029] S10, Build a drying-type kitchen waste treatment system; the system includes a heating device, a temperature sensing device, a treatment container, a drainage device, and a PCBA circuit board containing signal acquisition and control; the airflow direction between the fan and the treatment container is the same, and there is a sealed or semi-sealed structure between the inside of the treatment container and the fan to ensure that the fan can draw air from the direction towards the treatment container and discharge it away from the treatment container; the PCBA contains a switching circuit for controlling the fan and the heating device, as well as a sampling circuit for the current or speed of the fan;

[0030] S20, Test System: Simulate the real working environment of the system and plot the real-time heating power versus time curve of the food waste processor;

[0031] When the processing container is empty, the system is started normally, mainly including the heating system and fan. The heating system is controlled to maintain the machine at its normal operating temperature for a period of time until the system reaches thermal stability. Simultaneously, the energy (W) supplied to the heating system is monitored. Ph After the system output power Ph stabilizes, since the total heat input of the entire system is only W at this time... Ph The heat output is only W. Pe According to the law of conservation of energy, W can be considered as Pe =W Ph The energy (W) of heat exchanged between the system and the external environment at the operating temperature can then be measured. Pe .

[0032] In one exemplary embodiment, such as Figure 2 As shown in the figure, the change curve of the system output power is obtained. It can be seen from the figure that when Ph output power is stable, the power is 40W, that is, the power of the system heat exchange with the outside is 40W.

[0033] S30, Place kitchen waste in the processing container and turn on the heating device to dry the kitchen waste; the kitchen waste is evenly distributed in the processing container.

[0034] S40, determine the amount of residual water in the treatment container, and activate the drainage device to discharge the residual water before it reaches a safe limit. The method includes:

[0035] S401, the initial heating power of the processing container is measured by a temperature sensing device, and the initial water volume in the drainage device is measured;

[0036] S402, turn on the heating device, measure and record the real-time heating power of the processing container through the temperature sensing device, and measure the real-time water volume in the drainage device.

[0037] S403, calculate the cumulative energy supplied by the heating device based on the relationship curve, and calculate the energy exchanged between the processing container and the outside environment to obtain the water residue result of the kitchen waste processor.

[0038] Specifically, the first step is to subtract the energy of heat exchange between the processing container and the outside world from the cumulative energy supplied by the heating device to obtain the energy of water vapor generated by water liquefaction in the processing container.

[0039] like Figure 2 As shown, the cumulative energy supplied by the heating device is obtained through integral calculation, according to the formula. Solve for the actual energy Q required for the liquefaction of water in the processing container to produce water vapor. s ,Right now Figure 2 The area of ​​the shaded region shown.

[0040] The second step is to calculate the energy required to process the liquefied water in the container when the set safe water volume is reached.

[0041] The amount of water required to vaporize before reaching the set safe water volume is calculated based on the set safe water volume and the proportion of liquid water vaporized into water vapor; the proportion of liquid water vaporized into water vapor is obtained through multiple experimental tests.

[0042] In one specific embodiment, a certain amount of distilled water, weighing W, is placed in the system processing container. b For example, with a capacity of 500ml, the system is started normally, including the heating system, fan, filter, and exhaust pipe, while the drainage device is shut off throughout the process. After all the distilled water in the treatment container has evaporated at the system's normal operating temperature, the system is immediately stopped, and the weight W of the remaining liquid water in the exhaust pipe is measured. r That is, the proportion of liquid water converted into water vapor, k = W. r ÷W b .

[0043] After obtaining P e After determining the k value, the W value also needs to be set according to the specific structure of the product. s W s This refers to the safe amount of residual liquid water in the exhaust duct. Liquid water within this safe amount will not adversely affect the system. Liquid water exceeding this safe amount may affect the smooth flow of the duct or cause other adverse factors. Therefore, drainage is required if this safe amount is exceeded. sThe specific value needs to be set according to factors such as the structure and size of the product's own air duct. It can be used as a reference setting if the blocked duct exhaust area is less than 15%.

[0044] In actual measurement, a test was conducted using a certain food waste disposer model. When more than 70g of water was poured into the exhaust pipe, the water level could potentially affect the fan blades' ventilation. Furthermore, to allow for a certain margin in the design, a safe amount W of residual liquid water in the exhaust pipe was considered. s Set to 50g.

[0045] The third step is to calculate the energy required to treat the liquefied water in the container when the set safe water volume is reached, based on the amount of water that needs to be vaporized before reaching the set safe water volume and the energy required for vaporization of a unit mass of water under standard conditions.

[0046] To achieve a safe level of residual liquid water W in the exhaust pipe s It needs to evaporate W bs gram of water, and the liquid is known.

[0047] If the proportion of water converted to water vapor is k, then W bs =W s ÷k. According to basic physics, under normal pressure, it takes approximately 2257 joules for 1 gram of water to evaporate at 100 degrees Celsius. Therefore, W joules are needed to evaporate at 100 degrees Celsius. bs The theoretical energy required to quantify water is Qs'≈W. bs *2257J.

[0048] By comparing the energy required for water vapor to be produced by liquefying water in the treatment container with the energy required to reach the set safe water volume, the following can be obtained. The The residual water content of the food waste disposer. The residual water content of the food waste disposer includes a first residual result and a second residual result.

[0049] Based on the above formula, after the product starts, the system is monitored by temperature or power to infer when the processed material in the product's container is heated to its boiling point (e.g., when the temperature sensor detects a temperature exceeding 100 degrees Celsius). At this point, the effective output power is integrated. That is, the actual energy Q of water vapor produced by liquefaction of water in the processing container. s The theoretical energy Q required to process the liquefied water in the container when the set safe water volume is greater than the specified amount. s At this point, the residual water level in the food waste disposer is the first residual result, meaning the residual water level exceeds the set safe level, requiring the drainage device to be opened to drain the water; while when That is, the actual energy Q of water vapor produced by liquefaction of water in the processing container.s The energy Q required to process the liquefied water in the container when the set safe water volume is less than the theoretical energy required. s At this point, the residual water level of the food waste disposer is the second residual result, meaning that the residual water level of the food waste disposer does not exceed the set safe water level, and there is no need to drain the water.

[0050] By following the steps above, the amount of liquefied water in the processing container can be determined based on the output power of the food waste disposer. The disposer can intelligently sense the amount of water accumulating in the pipes and start the valve or water pump to discharge the water before the accumulation reaches the safety limit, which greatly improves the drainage accuracy and reliability of the food waste disposer.

[0051] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A smart drainage method for a kitchen waste disposer, characterized in that, The method comprises: S10, building a drying type kitchen garbage treatment system; the system comprises a heating device, a temperature sensing device, a treatment container, a drainage device, and a PCBA circuit board comprising signal acquisition and control; the drying type kitchen garbage treatment system further comprises a fan, a filtering device, and an exhaust duct; S20, testing the system: simulating the real working environment of the system to draw a real-time heating power-time relationship curve of the kitchen garbage disposer; S30, placing kitchen garbage: placing the kitchen garbage to be dried in the treatment container, and simultaneously starting the heating device to dry the kitchen garbage; S40, judging the residual water amount in the treatment container: starting the drainage device to drain the residual water before the residual water amount reaches a safety limit, and the method comprises: S401, measuring the initial heating power of the treatment container by the temperature sensing device, and measuring the initial water amount in the drainage device; S402, opening the heating device, measuring and recording the real-time heating power of the treatment container by the temperature sensing device, and measuring the real-time water amount in the drainage device; S403, calculating the cumulative energy supplied by the heating device according to the relationship curve, and calculating the energy exchanged with the outside world by the treatment container to obtain the water residual result of the kitchen garbage disposer; the S403 comprises: subtracting the energy exchanged with the outside world by the treatment container from the cumulative energy supplied by the heating device to obtain the energy for producing water vapor by the liquefaction of water in the treatment container; calculating the energy required for the liquefied water in the treatment container to reach the set safety water amount; the calculation of the energy required for the liquefied water in the treatment container to reach the set safety water amount comprises: calculating the water amount required for vaporization before reaching the set safety water amount according to the set safety water amount and the proportion of liquid water vaporized into water vapor; the proportion of liquid water vaporized into water vapor is obtained through multiple tests; calculating the energy required for the liquefied water in the treatment container to reach the set safety water amount according to the water amount required for vaporization before reaching the set safety water amount and the energy required for vaporization per unit mass of water under standard conditions; comparing the energy for producing water vapor by the liquefaction of water in the treatment container with the energy required for the liquefied water in the treatment container to reach the set safety water amount to obtain the water residual result of the kitchen garbage disposer; the water residual result of the kitchen garbage disposer comprises a first residual result and a second residual result, wherein the first residual result indicates that the residual water amount of the kitchen garbage disposer exceeds the set safety water amount, and the drainage device needs to be opened for drainage; the second residual result indicates that the residual water amount of the kitchen garbage disposer does not exceed the set safety water amount, and drainage is not required; the first residual result is that the energy for producing water vapor by the liquefaction of water in the treatment container is greater than the energy required for the liquefied water in the treatment container to reach the set safety water amount; and the second residual result is that the energy for producing water vapor by the liquefaction of water in the treatment container is less than the energy required for the liquefied water in the treatment container to reach the set safety water amount.

2. The intelligent drainage method of a kitchen waste disposer according to claim 1, wherein, In step S10, the fan and the processing container have the same air flow direction, and there is a closed or semi-closed structure between the inside of the processing container and the fan, so that the fan can draw air from the direction towards the processing container and discharge air from the direction away from the processing container.

3. The intelligent drainage method of a kitchen waste disposer according to claim 1, wherein, The PCBA circuit board contains a switching circuit for controlling the fan and the heating device, and a sampling circuit for sampling the current or rotating speed of the fan.

4. The intelligent drainage method of a kitchen garbage disposer according to claim 1, wherein, In step S30, the kitchen garbage is uniformly distributed in the processing container.

5. The intelligent drainage method of a kitchen waste disposer according to claim 1, wherein, The cumulative energy supplied by the heating device is obtained by integral calculation.

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