CN109645915B

CN109645915B - Dish washing machine

Info

Publication number: CN109645915B
Application number: CN201910066174.0A
Authority: CN
Inventors: 苗森春; 李鹏兴; 王加浩; 史知晓; 肖浩军
Original assignee: Lanzhou University of Technology
Current assignee: Lanzhou University of Technology
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2021-10-08
Anticipated expiration: 2039-01-24
Also published as: CN109645915A

Abstract

The invention belongs to the technical field of automatic sanitary ware equipment in a kitchen, and particularly relates to a dish-washing machine. In order to reduce the use of detergent in the existing dish washing machine, the invention discloses a dish washing machine. The dish washing machine comprises an inner cylinder, a rotary table, an atomizer, an air compressor, an air heater, an air-liquid mixing pipe and a plurality of nozzles; the turntable is supported and fixed in the inner cylinder through the upright post and can rotate in the circumferential direction; the inlet of the atomizer is connected with a water source, and the outlet of the atomizer is communicated with a gas-liquid mixing pipe; the inlet of the air heater is communicated with the outlet of the air compressor, and the outlet of the air heater is communicated with the gas-liquid mixing pipe; the gas-liquid mixing pipe is of an annular structure and is sleeved and fixed outside the inner cylinder; the nozzles are distributed on the gas-liquid mixing pipe along the circumferential direction, and the outlets of the nozzles extend to the inner part of the inner cylinder and point to the rotating disc. The dish washing machine can generate high-temperature and high-speed gas-liquid mixture to carry out physical impact washing on bowls and chopsticks, thereby omitting the use of detergent.

Description

Dish washing machine

Technical Field

The invention belongs to the technical field of automatic sanitary ware equipment in a kitchen, and particularly relates to a dish-washing machine.

Background

Along with the rapid development of economy and the excessive increase of population, the demand of human beings on water resources is continuously increased, and in addition, unreasonable exploitation and utilization of water resources exist, water shortage problems of different degrees appear in many countries and regions, and China becomes one of the most serious countries in water resource shortage. One of the focuses on solving the current water resource shortage in China is as follows: throttling, i.e. saving water. Wherein, daily dish washing begins to wash gradually to the machine washing transition from hand washing, and through relevant experimental verification, machine washing not only saves water than hand washing, and machine washing energy consumption is also less than hand washing energy consumption (heating running water) moreover.

At present, most of the conventional dish washing machines perform a washing operation of dishes by providing soaking and rinsing with hot water at a proper water temperature by means of chemical decontamination performance of detergent. Therefore, enough detergent needs to be added to ensure the cleaning effect, the use of a large amount of detergent can affect the health of human bodies, the use amount of hot water can be increased by means of soaking of the hot water, and the water-saving and energy-saving effects of the dish-washing machine are greatly reduced.

Disclosure of Invention

In order to solve the technical problems of the existing dish washing machine, the invention provides a dish washing machine. The dish washer comprises an inner cylinder, a rotary disc, an atomizer, an air compressor, an air heater, an air-liquid mixing pipe and a plurality of nozzles; the turntable is supported and fixed in the inner cylinder through the upright post and can rotate in the circumferential direction; the inlet of the atomizer is connected with a water source, and the outlet of the atomizer is communicated with a gas-liquid mixing pipe; an inlet of the air heater is communicated with an outlet of the air compressor, and an outlet of the air heater is communicated with the gas-liquid mixing pipe; the gas-liquid mixing pipe is of an annular structure and is sleeved and fixed outside the inner cylinder; the nozzles are distributed on the gas-liquid mixing pipe along the circumferential direction, and the outlets of the nozzles extend to the inner part of the inner barrel and point to the rotary disc.

Preferably, the nozzle comprises a housing and a guide vane; the nozzle inlet is connected with the gas-liquid mixing pipe, and the nozzle outlet points to the rotary disc; the guide vane is positioned inside the housing near the outlet, extends along the gas-liquid flow direction inside the housing, and gradually twists in the circumferential direction.

Further preferably, the guide vane is a helical vane.

Further preferably, the nozzle further comprises a needle, a spray bar and a controller; wherein the spray bar extends through the housing with one end located inside the housing and extending to the nozzle outlet location for connection with the needle and the other end located outside the housing and connected to the controller; the controller drives the spray rod to reciprocate, so that the spray needle is driven to move, and the flow area of the nozzle outlet is changed.

Further preferably, the nozzle needle is conical and forms a circular outlet with the nozzle outlet.

Further preferably, the controller adopts a proportional electromagnet.

Preferably, the dishwasher further comprises an air cleaner; the air cleaner is located upstream of the air compressor.

Preferably, the dishwasher further comprises a generator; the generator is connected with the upright post through a transmission mechanism, and the generator is driven to generate electricity through the rotation of the upright post.

Further preferably, the dishwasher further comprises a battery; the storage battery is connected with the generator and used for storing electric energy.

Preferably, the dishwasher further comprises a drain valve; the drain valve is positioned at the bottom of the inner cylinder and used for draining accumulated water in the inner cylinder.

Compared with the prior conventional dish-washing machine, the dish-washing machine has the following beneficial effects:

1. in the dishwasher of the invention, firstly, a high-temperature and high-pressure gas-liquid mixture is formed by the atomizer, the air compressor and the air heater, and then the high-temperature and high-pressure gas-liquid mixture is sprayed to the surfaces of the bowls and chopsticks to be cleaned at high speed by the gas-liquid mixing pipe and the nozzle. At the moment, on one hand, the dirt on the surfaces of the bowls and chopsticks is directly cleaned by high-temperature impact through the high-temperature gas-liquid mixture sprayed at a high speed, and on the other hand, the tough dirt remained on the bowls and chopsticks is cleaned by the vibration of microwaves with irregular frequency when a large amount of bubbles in the gas-liquid mixture are contacted with the surfaces of the bowls and chopsticks and are broken. Thus, the bowls and chopsticks are cleaned under the complete physical action, the use of a detergent is omitted, the protection on the health of a human body is improved, the use of hot water for soaking is omitted, and the effects of water saving and energy saving are greatly improved.

2. In the dishwasher, the guide vane is arranged in the nozzle, so that the gas-liquid mixture passing through the nozzle generates the speed in the circumferential direction, and the gas-liquid mixture generates tangential acting force when contacting with the surfaces of bowls and chopsticks, generates a tangential removing effect on dirt on the surfaces of the bowls and chopsticks, and further improves the physical cleaning effect on the bowls and chopsticks.

Drawings

FIG. 1 is a schematic top view of a dishwasher in accordance with an embodiment;

FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;

fig. 3 is a schematic structural view of the nozzle of fig. 1.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 3, the dishwasher of the present embodiment includes an outer tub 1, an inner tub 2, a turntable 3, an atomizer 4, an air compressor 5, an air heater 6, an air-liquid mixing pipe 7, and three nozzles 8.

The inner cylinder 2 is a cylindrical barrel-shaped structure and is supported and fixed in the outer cylinder 1 through a support pillar 9. The turntable 3 is supported and fixed inside the inner cylinder 2 by a column 10 and can rotate in the circumferential direction in the inner cylinder 2. The inlet of the atomizer 4 is connected with a water source through a water pump, and the outlet is communicated with the gas-liquid mixing pipe 7 and is used for atomizing water to form a gas-liquid mixture containing bubbles and conveying the gas-liquid mixture into the gas-liquid mixing pipe 7. The inlet of the air heater 5 is communicated with the outlet of the air compressor 6, and the outlet of the air heater 5 is communicated with the gas-liquid mixing pipe 7. At this time, the external air is first compressed by the air compressor 6 to form a high-pressure gas with a certain pressure, and then heated by the air heater 5 to form a high-temperature high-pressure gas, and the high-temperature high-pressure gas enters the gas-liquid mixing pipe 7 to be mixed with the atomized water. In this embodiment, the air heater 5 is an electric heating wire to heat air, and other heaters may be used.

The gas-liquid mixing pipe 7 is of an annular pipe structure and is sleeved and fixed between the inner barrel 2 and the outer barrel 1. The three nozzles 8 are distributed on the gas-liquid mixing pipe 7 along the circumferential direction, and the outlets of the nozzles 8 extend to the inner part of the inner cylinder 2 and point to the rotary table 3, so that the high-temperature and high-pressure gas-liquid mixture in the gas-liquid mixing pipe 7 is introduced into the inner cylinder and sprayed to bowls and chopsticks to be cleaned on the rotary table 3.

When the dish washing machine is used for washing bowls and chopsticks, firstly, the bowls and chopsticks to be washed are placed on the rotary disc 3, wherein the bowls and the dishes to be washed are sequentially and vertically placed on the outermost circumference of the rotary disc 3 along the circumferential direction, and the chopsticks to be washed are placed at the center of the rotary disc 3 through the chopstick basket, so that the whole surfaces of the bowls and the dishes can be washed in the rotating process of the rotary disc 3; and then starting the atomizer 4, the air compressor 5 and the air heater 6, so that the high-pressure and high-temperature compressed air carries atomized water containing a large amount of bubbles to enter the gas-liquid mixing pipe 7 to form a high-temperature and high-pressure gas-liquid mixture, and finally the high-temperature and high-speed gas-liquid mixture is converted into the high-temperature and high-speed gas-liquid mixture through the three nozzles 8 and sprayed to the bowls and chopsticks to be cleaned on the rotating disc 3.

At the moment, when the gas-liquid mixture which is high in temperature and high in speed and contains a large amount of bubbles is sprayed to the bowls and chopsticks to be cleaned, dirt on the bowls and chopsticks is subjected to two physical actions, on one hand, the gas-liquid mixture directly generates positive impact on the dirt through high-speed movement formed by the nozzle under the action of high pressure, and the most direct impact cleaning on the dirt is completed; on the other hand, when the gas-liquid mixture containing a large amount of bubbles contacts the surfaces of the bowls and chopsticks, the bubbles are quickly broken, so that the microwave vibration effect with irregular frequency is generated on the surfaces of the bowls and chopsticks, stubborn dirt remained on the bowls and chopsticks is cleaned in a vibrating way, and the bowls and chopsticks are cleaned purely physically. In the process, the attachment capacity of dirt can be reduced by means of high-temperature air, the cleaning effect of the bowls and chopsticks is improved, and the proportion of the high-temperature air and the water mist in the gas-liquid mixture can be adjusted in real time according to the cleaning progress, so that drying and high-temperature disinfection treatment of the bowls and chopsticks are realized, and the cleaning efficiency of the bowls and chopsticks is improved.

As shown in fig. 1 and 3 in conjunction, in the present embodiment, the nozzle 8 includes a housing 81 and guide vanes 82. Wherein, the nozzle inlet 811 is connected with the gas-liquid mixing pipe 7, and the nozzle outlet 812 points to the turntable 3, so that the gas-liquid mixture in the gas-liquid mixing pipe 7 is sprayed at high speed to the bowls and chopsticks to be cleaned. The guide vane 82 is located inside the casing 81 and near the outlet 812, and the guide vane 82 extends in the gas-liquid flow direction inside the casing and gradually twists in the circumferential direction, thereby generating a circumferential component velocity of the gas-liquid mixture passing through the nozzle 8. Therefore, when the gas-liquid mixture contacts with dirt on the surfaces of the bowls and chopsticks, tangential acting force which is positioned on the surfaces of the bowls and chopsticks and along the circumferential direction can be generated, so that a tangential removing effect can be generated on the dirt, and the cleaning effect on the bowls and chopsticks is further improved.

In the embodiment, the guide vane is directly a spiral vane and is fixed on the inner wall of the shell in a welding mode, so that the gas-liquid mixture passing through the nozzle generates a component velocity in the circumferential direction. Similarly, in other embodiments, twisted vanes with other structures can be selected and designed as guide vanes to generate the gas-liquid mixture with a partial velocity in the circumferential direction.

As shown in fig. 3, a needle 83, a spray bar 84, and a controller 85 are also provided in the nozzle 8 of the present embodiment. Wherein the spray bar 84 extends through the housing 81, with one end located inside the housing 81 and extending to a nozzle outlet 812 location for connection with the needle 83 and the other end located outside the housing 81 and connected to the controller 85. The controller 85 can drive the spray rod 84 to linearly reciprocate, so as to drive the spray needle 83 to move relative to the nozzle outlet 812, so that the flow area between the spray needle 83 and the nozzle outlet 812 can be adjusted, and the output of the gas-liquid mixture can be controlled.

Preferably, in this embodiment, the forward end of the needle 83 is conically configured and remains coaxially disposed with the nozzle outlet 812. Thus, a complete circular outlet is formed between the spray needle 83 and the nozzle outlet 812, so that the stability of the speed division in the circumferential direction can be effectively maintained when the gas-liquid mixture is output around the spray needle, and an effective circumferential tangential acting force can be generated when the gas-liquid mixture is in contact with bowls and chopsticks.

Preferably, the controller 85 employs a proportional solenoid, and maintains the end of the spray bar 84 in communication with the push rod of the proportional solenoid. Therefore, the position change of the spray rod 84 can be controlled by remotely controlling the current in the input proportion electromagnet, so that the size of the outlet of the nozzle is adjusted and controlled in real time, the output quantity of the gas-liquid mixture in different cleaning stages of bowls and chopsticks is accurately controlled, the efficient utilization of the gas-liquid mixture is improved, and the water-saving and energy-saving effects are improved.

Referring to fig. 2, the dishwasher of the present embodiment further includes an air cleaner 11. The air cleaner 11 is located at the upstream of the air compressor 5, and is used for filtering and cleaning the sucked air, improving the cleanliness of the gas in the gas-liquid mixture, and ensuring the safety and sanitation of the cleaning of the bowls and chopsticks.

In addition, as shown in fig. 2, the dishwasher of the present embodiment is further provided with a generator 12 and a storage battery 13, and the center line of the nozzle 8 is in a non-intersecting position with the central axis of the turntable 3, that is, the gas-liquid mixture sprayed from the nozzle includes a component velocity in the radial direction of the turntable and a component velocity in the tangential direction of the turntable. Wherein, the upright post 10 is rotationally fixed on the supporting plate 14 through a bearing, and the main shaft of the generator 12 is connected with the upright post 10 through a transmission mechanism consisting of a belt pulley and a transmission belt. At the moment, under the action of tangential component velocity in a high-speed gas-liquid mixture, acting force in the circumferential direction can be generated on the rotating disc through the bowl and the disc to be cleaned, so that the upright column is driven to rotate, finally, the generator is driven by the rotation of the upright column to generate electricity, and the generated electric energy is stored in the storage battery. Therefore, partial residual kinetic energy in the gas-liquid mixture can be recycled, stored and reused by the generator and the storage battery, so that the utilization rate of the whole dishwasher on energy is improved, and the energy-saving effect of the dishwasher is further improved.

In other embodiments, the dishwasher can also be provided with a driving motor for auxiliary driving of the rotation of the turntable according to the design requirements of use conditions and energy consumption. Therefore, the rotating speed of the rotary disc can be accurately controlled through the auxiliary power output by the driving motor, so that the auxiliary power is adaptive to the gas-liquid mixture output by the nozzle, and the cleaning effect of bowls and chopsticks is ensured.

In addition, as shown in connection with fig. 2, the dishwasher further includes a drain valve 15. Wherein, the drain valve 15 is positioned at the bottom of the inner cylinder 2 and is used for discharging accumulated water in the inner cylinder 2 in time and keeping the due dry environment of the inner cylinder.

Claims

1. A dish washing machine is characterized by comprising an inner cylinder, a rotary disc, an atomizer, an air compressor, an air heater, an air-liquid mixing pipe and a plurality of nozzles; the turntable is supported and fixed in the inner cylinder through the upright post and can rotate in the circumferential direction; the inlet of the atomizer is connected with a water source, and the outlet of the atomizer is communicated with a gas-liquid mixing pipe; an inlet of the air heater is communicated with an outlet of the air compressor, and an outlet of the air heater is communicated with the gas-liquid mixing pipe; the gas-liquid mixing pipe is of an annular structure and is sleeved and fixed outside the inner cylinder; the nozzles are distributed on the gas-liquid mixing pipe along the circumferential direction, and the outlets of the nozzles extend to the inner part of the inner barrel and are directed to the rotary disc; the central line of the nozzle and the central axis of the turntable form a non-crossed position relation; the nozzle comprises a shell and a guide vane; the nozzle inlet is connected with the gas-liquid mixing pipe, and the nozzle outlet points to the rotary disc; the guide vane is positioned in the shell at a position close to the outlet, extends along the gas-liquid flowing direction in the shell and is gradually twisted along the circumferential direction; the guide vanes are helical vanes; the nozzle also comprises a spray needle, a spray rod and a controller; wherein the spray bar extends through the housing with one end located inside the housing and extending to the nozzle outlet location for connection with the needle and the other end located outside the housing and connected to the controller; the controller drives the spray rod to reciprocate, so that the spray needle is driven to move, and the flow area of the nozzle outlet is changed.

2. The dishwasher of claim 1, wherein the needle is of conical configuration and forms an annular outlet with the nozzle outlet.

3. The dishwasher of claim 1, wherein the controller employs a proportional electromagnet.

4. The dishwasher of any one of claims 1 to 3, further comprising an air cleaner; the air cleaner is located upstream of the air compressor.

5. The dishwasher of any one of claims 1 to 3, further comprising a generator; the generator is connected with the upright post through a transmission mechanism, and the generator is driven to generate electricity through the rotation of the upright post.

6. The dishwasher of claim 5, further comprising a battery; the storage battery is connected with the generator and used for storing electric energy.

7. The dishwasher of any one of claims 1 to 3, further comprising a drain valve; the drain valve is positioned at the bottom of the inner cylinder and used for draining accumulated water in the inner cylinder.