CN217429932U - Dish washing machine - Google Patents

Abstract

The utility model discloses a dish washing machine relates to the equipment technical field that washes dishes for overcome among the prior art dish washing machine adopt electric heater unit heating power consumption big and rate of heating slow, and the heat pump structure is complicated, and the great problem of volume. The utility model discloses a dishwasher includes the casing, be formed with the purge chamber in the casing, install in the casing and wash subassembly and gas heating device, gas heating device and water supply installation intercommunication, and be used for the heating the washing water that water supply installation provided, wash the subassembly with gas heating device intercommunication, it can with to wash the subassembly the washing water after the gas heating device heating spout to wash on the article of waiting to wash in the purge chamber. The utility model discloses a dish washer is used for the self-cleaning tableware.

Description

Dish-washing machine

Technical Field

The utility model relates to a equipment technical field that washes dishes especially relates to a dish washer.

Background

With the improvement of living standard of people, more and more families can choose the dish washing machine to improve the quality of life. The dish-washing machine carries out 360-degree mechanical washing on the surface of tableware placed in the dish-washing machine through high-temperature high-pressure water flow, assists the decomposition of a cleaning agent on greasy dirt and residues on the surface of the tableware, and in addition, hot water is soaked and swelled on food residues, so that the greasy dirt and the residues are rapidly decomposed and fall off from the tableware, the dual effects of cleaning and degerming are achieved, and the dish-washing machine is time-saving, labor-saving, simple and convenient to operate, high in dirt-removing capacity and thorough in disinfection.

Since the dishwasher needs hot water for washing when operating, a heating device is installed in the dishwasher. At present, two heating devices commonly used in a dishwasher in the market are an electric heating device and a heat pump respectively, and the electric heating device is adopted to heat washing water, so that the heating speed is low, the requirement on the heat preservation performance of the dishwasher is high, and the power consumption is high; the heat pump has a complex structure and a large volume.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a dish washing machine, which is used for solving the problems that the dish washing machine in the prior art adopts an electric heating device to heat, the electric power consumption is large, the heating speed is low, the structure of a heat pump is complex, and the volume is large.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

the embodiment of the application provides a dish washer includes the casing, be formed with the purge chamber in the casing, install in the casing and wash subassembly and gas heating device, gas heating device and water supply installation intercommunication, and be used for heating the washing water that water supply installation provided, wash the subassembly with gas heating device intercommunication, it can with to wash the subassembly the washing water after the gas heating device heating spout to wash on the article to be washd in the purge chamber.

In some possible embodiments of the present application, the gas heating apparatus includes: the gas heating assembly is connected between the water supply device and the cleaning assembly; lead the cigarette subassembly, it sets up to lead the cigarette subassembly the top of gas heating element, and be used for with the flue gas that gas heating element produced is derived.

In some possible embodiments of the present application, the gas heating assembly comprises a heat exchanger, wherein one end of a heat exchange pipe in the heat exchanger is communicated with a water supply device, and the other end of the heat exchange pipe in the heat exchanger is communicated with the cleaning assembly; a burner located below the heat exchanger and capable of heating water in the heat exchanger; an igniter mounted at an air inlet of the burner.

In some possible embodiments of the present application, the smoke guide assembly includes a smoke collection hood, the smoke collection hood having a smoke collection chamber formed therein, and the smoke collection hood being disposed on the heat exchanger; the smoke exhaust fan is communicated with the smoke collecting cavity and the smoke guide pipe in the smoke collecting hood respectively; and one end of the smoke guide pipe, which is far away from the smoke exhaust fan, penetrates through the shell.

In some possible embodiments of the present application, the smoke guiding pipe is a double-layer smoke pipe, an inner layer flue of the smoke guiding pipe is communicated with an air outlet of the smoke exhaust fan, and a portion of the outer layer flue of the smoke guiding pipe, which is located outside the housing, is provided with a vent hole.

In some possible embodiments of the present application, a heating chamber is further formed in the housing, and the gas heating assembly and the smoke guide assembly are both located in the heating chamber.

In some possible embodiments of the present application, the gas heating apparatus further includes a storage water tank connected between the gas heating assembly and the washing assembly.

In some possible embodiments of the present application, the gas heating apparatus further includes: a water inlet pipe connected between the heat exchanger and a water supply device; the temperature detection device is arranged on the water inlet pipeline; the flow adjusting device is installed on the water inlet pipeline and electrically connected with the temperature detecting device, and is used for adjusting water flow entering the heat exchanger according to the temperature value detected by the temperature detecting device.

In some possible embodiments of the present application, the gas heating apparatus further includes: the gas pipeline is used for being communicated with a gas supply device, and the combustor is communicated with the gas pipeline; a gas control valve mounted on the gas conduit; the controller is electrically connected with the temperature detection device and the gas control valve, and is used for controlling the opening degree of the gas control valve according to the temperature value detected by the temperature detection device so as to adjust the gas quantity entering the combustor.

In some possible embodiments of the present application, the flow regulating device is a water volume servo.

Compared with the prior art, the dishwasher provided by the embodiment of the application comprises the gas heating device, the gas heating device is arranged between the cleaning component and the water supply device and is communicated with the cleaning component and the water supply device, the gas heating device can heat the washing water and then guide the water into the cleaning component, and the cleaning component can spray the hot water to the objects to be cleaned in the cleaning chamber for cleaning, so that the cleaning function of the dishwasher is realized; and the gas heating device mainly adopts gas to heat, and on the basis of not losing other performance requirements of any dish washer, the required power consumption of heating process is lower, and the energy consumption is lower, and rate of heating is fast, the structure is simpler and the volume is less.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a dishwasher according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a gas heating device in a dishwasher according to an embodiment of the present application;

FIG. 3 is a schematic flow chart of a washing operation of a dishwasher according to an embodiment of the present application.

Reference numerals:

100-dishwasher, 1-housing, 101-washing chamber, 102-heating chamber, 11-housing, 12-inner container, 121-water tank, 2-washing assembly, 21-first water inlet pipe, 22-water discharge pipe, 23-circulation pipe, 24-washing water pump, 25-water discharge pump, 26-spray device, 26 a-first spray arm, 26 b-second spray arm, 27-first control water valve, 28-pipe joint, 3-gas heating device, 31-gas heating assembly, 311-heat exchanger, 312-burner, 32-smoke guide assembly, 321-smoke collecting hood, 322-smoke exhaust fan, 323-smoke guide pipe, 33-storage water tank, 34-second control water valve, 35-third control water valve, 36-a second water inlet pipeline, 361-a water inlet joint, 362-a flow regulating device, 363-a temperature detecting device, 37-a water outlet pipeline, 38-a gas pipeline and 381-a gas control valve.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description of the present application, "and/or" is only one kind of association relationship describing an associated object, and means that three kinds of relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Referring to fig. 1, a dishwasher 100 according to an embodiment of the present application includes a housing 1, a washing chamber 101 formed in the housing 1, and a support structure installed in the washing chamber 101, the support structure being a bowl and basket assembly to facilitate fixing and separating of articles to be washed. Wherein, the articles to be cleaned can be tableware, fruits and vegetables, egg articles and the like.

The housing 1 of the dishwasher 100 may have a shape of an approximately rectangular parallelepiped, and accordingly, the washing chamber 101 formed therein may also have a rectangular parallelepiped. Of course, the shape of the housing 1 of the dishwasher 100 in the embodiment of the present application is not limited to the rectangular parallelepiped, but may be a cube, a cylinder, other irregular shapes, and the like.

The housing 1 includes a casing 11 and an inner container 12, wherein the casing 11 is used for defining an external structure, the inner container 12 is located in the casing 11, and an internal space of the inner container 12 defines the cleaning chamber 101. That is, the housing 1 of the dishwasher 100 has a double-layered housing structure, which can ensure the heat insulation performance of the dishwasher 100.

The outer casing 11 and the inner container 12 are each of a box structure having an opening. Illustratively, the openings of the housing 11 and the tub 12 of the built-in dishwasher 100 are generally opened at the front thereof, and the openings of the housing 11 and the tub 12 of the sump dishwasher 100 are generally opened at the top thereof.

The dishwasher 100 of the embodiment of the present application further includes a door body disposed at the opening and used for opening or closing the washing chamber 101. When the door body opens the opening, the user can place the article to be washed in the washing chamber 101, or take out the washed article from the washing chamber 101.

For the two different types of the above-mentioned dishwashers 100, the installation positions of the door bodies are different, for example, for the built-in dishwasher 100, the door body is installed at the front part of the built-in dishwasher 100; for the sump dishwasher 100, the door is mounted on the top of the sump dishwasher 100.

A cleaning assembly 2 is further installed in the housing 1, and the cleaning assembly 2 includes a first water inlet pipe 21, a water discharge pipe 22, a circulation pipe 23, a washing water pump 24, a drain pump 25, a shower device 26, a first control water valve 27, and the like.

Wherein, first inlet channel 21, drainage pipe 22, circulating line 23 all communicate with purge chamber 101, and the first end and the water supply system intercommunication of first inlet channel 21, and the first end of drainage pipe 22 wears to establish outside casing 1. Referring to fig. 1, a first end of a circulation pipe 23 is directly communicated with a cleaning chamber 101, a second end of the circulation pipe 23 is communicated with a second end of a first water inlet pipe 21, a second end of a drain pipe 22 and the cleaning chamber 101 through a pipe joint 28, and the pipe joint 28 is provided with a control valve member to control the communication or disconnection of the pipes.

The washing water pump 24 is installed on the circulation pipe 23, and the washing water pump 24 can repeatedly pump the water in the washing chamber 101 into the washing chamber 101 and pump the water into the washing chamber 101 through the first water inlet pipe 21. In order to facilitate water outlet, a water tank 121 is formed at the bottom of the cleaning chamber 101, a filter screen is installed at a water outlet of the water tank 121, the washing water in the cleaning chamber 101 naturally flows to the water tank 121 under the action of gravity, and after being filtered by the filter screen, the washing water can filter large impurities in the washing water to prevent the water discharge pipeline 22 or the circulation pipeline 23 from being blocked.

The drain pump 25 is installed on the drain line 22, and the drain pump 25 can pump the water in the washing chamber 101 to the outside of the cabinet 1 through the drain line 22.

The shower device 26 is located in the cleaning chamber 101 and communicates with the circulation duct 23. The spray device 26 in the cleaning chamber 101 shown in fig. 1 includes two spray arms, which are a first spray arm 26a and a second spray arm 26b, respectively, the first spray arm 26a is located at the upper portion of the cleaning chamber 101, the second spray arm 26b is located at the lower portion of the cleaning chamber 101, the first spray arm 26a sprays water upward, and the second spray arm 26b sprays water downward.

With continued reference to fig. 1, a first control water valve 27 is installed in the first water inlet pipe 21, and the first control water valve 27 is used to adjust the water inlet flow rate of the cleaning chamber 101 to ensure stable water supply to the cleaning chamber 101.

After the dishwasher 100 starts a washing function, the first control water valve 27 adjusts the inflow rate of water introduced into the washing chamber 101, and the water supply system sprays washing water into the washing chamber 101 through the spray device 26 and adds a detergent, and stops supplying water into the washing chamber 101 after the water level in the washing chamber 101 reaches a preset level. In the preset cleaning process, the washing water pump 24 repeatedly pumps the washing water out of the cleaning chamber 101 and pumps the water into the cleaning chamber 101, thereby completing the washing function of the object to be cleaned. After the washing process or the rinsing process is completed, the drain pump 25 is turned on, and the drain pump 25 pumps the water in the washing chamber 101 out of the washing chamber 101 through the drain line 22.

Because the dishwasher 100 needs to be washed by hot water in the washing process to accelerate the soaking and swelling of food residues and the separation speed of oil stains and residues from tableware, if the heating device is an electric heating device arranged in the washing chamber 101, such as a heating plate or a heating wire, the electric heating device heats the washing water, so that the heating speed is low, the requirement on the heat preservation performance of the dishwasher 100 is high, and the power consumption is high; if the heating device is a heat pump, the heat pump has a complex structure and a large volume.

In order to solve the above problems, referring to fig. 1 and fig. 2, the heating device in the dishwasher 100 according to the embodiment of the present application is the gas heating device 3, the gas heating device 3 is disposed between the washing assembly 2 and the water supply device and is communicated with both of them, the gas heating device 3 can heat the washing water provided by the water supply device and then introduce the water into the washing assembly 2, and the washing assembly 2 can spray the hot water to the articles to be washed in the washing chamber 101 for washing, thereby realizing the washing function of the dishwasher 100; and the gas heating device 3 mainly adopts gas to heat, and on the basis of not losing other performance requirements of any dish washer, the required power consumption of heating process is lower, and the energy consumption is lower, and rate of heating is fast, the structure is simpler and the volume is less.

Through practical test, to two dish washers that volume and capacity are the same, the complete machine power of the dish washer that adopts electric heater unit is 1800W, and the complete machine power of the dish washer that adopts gas heating device 3 can drop to 100W, can reduce the power consumption by a wide margin, reduces the energy consumption by a wide margin to shorten heating time.

The gas heating device 3 comprises a gas heating component 31 and a smoke guide component 32, wherein the gas heating component 31 is connected between the water supply device and the cleaning component 2; lead the top that cigarette subassembly 32 set up at gas heating subassembly 31, and lead cigarette subassembly 32 and can lead out the flue gas that produces behind the combustion heating subassembly burning reaction to the casing 1 outside to guarantee gas heating device 3's security.

Wherein, the gas heating assembly 31 comprises a heat exchanger 311, a burner 312 and an igniter, wherein one end of a heat exchange pipeline in the heat exchanger 311 is communicated with a water supply device, and the other end of the heat exchange pipeline in the heat exchanger 311 is communicated with the cleaning assembly 2; the burner 312 is positioned below the heat exchanger 311, the burner 312 can heat water in the heat exchanger 311, and the igniter is installed at an air inlet of the burner 312 and can ignite gas in the burner 312.

When the gas heating device 3 is operated, the igniter ignites the gas in the burner 312, and the burner 312 burns and heats the washing water in the heat exchanger 311, thereby achieving the purpose of supplying hot water to the washing assembly 2.

The gas heating apparatus 3 further includes a storage water tank 33, the storage water tank 33 is connected between the heat exchanger 311 and the washing unit 2, and water heated by the heat exchanger 311 may be stored in the storage water tank 33. When the washing module 2 needs to supply water, the hot water in the storage tank 33 can be directly pumped out without waiting, and the time required by the washing process can be shortened.

Illustratively, a second control water valve 34 is installed on a connecting water channel at the water inlet of the storage water tank 33, a third control water valve 35 is installed on a connecting water pipe at the water outlet of the storage water tank 33, the second control water valve 34 is used for controlling the on-off of the heat exchanger 311 and the storage water tank 33, and the third control water valve 35 is used for controlling the on-off of the storage water tank 33 and the cleaning assembly 2. Specifically, the second control water valve 34 and the third control water valve 35 are both solenoid valves.

When hot water needs to be stored, the second control water valve 34 is opened, the third control water valve 35 is closed, and the hot water from the heat exchanger 311 can enter the storage water tank 33 for storage; when the washing process is performed, the second control valve 34 is closed and the third control valve 35 is opened, and the water in the storage tank 33 can be guided to the shower device 26 by the washing water pump 24.

In some embodiments of the present application, the heating chamber 102 is further formed in the housing 1, and the heat exchanger 311, the burner 312 and the igniter of the gas heating device 3 are all installed in the heating chamber 102, so as to avoid the smoke generated by the burner 312 from leaking to other areas of the housing 1 and causing safety problems.

If the flue gas that combustor 312 produced only relies on atmospheric pressure to derive, exhaust speed is slow, and the security is lower, only is applicable to the position that ventilates well. Referring to fig. 2, the smoke guiding assembly 32 in the embodiment of the present application includes a smoke collecting hood 321, a smoke exhaust fan 322, and a smoke guiding pipe 323, wherein a smoke collecting cavity is formed in the smoke collecting hood 321, the smoke collecting hood 321 is covered on the heat exchanger 311, the smoke exhaust fan 322 is communicated with the smoke collecting cavity in the smoke collecting hood 321 and the smoke guiding pipe 323, and one end of the smoke guiding pipe 323, which is far away from the smoke exhaust fan 322, is penetrated outside the housing 1. The smoke collecting cover 321 collects the smoke generated by the burner 312 in the smoke collecting cavity therein, and under the action of the smoke exhaust fan 322, the smoke generated by the burner 312 is extracted from the smoke collecting cavity and guided out of the housing 1 through the smoke guide pipe 323, and the smoke of the burner 312 can be quickly guided out, so that the safety of the dishwasher 100 is high.

The smoke guide pipe 323 can be a single-layer smoke pipe and is only used as a smoke guide duct structure of the smoke exhaust fan 322; or, the smoke guide pipe 323 is a double-layer smoke pipe, an inner layer flue of the smoke guide pipe 323 is communicated with the air outlet of the smoke exhaust fan 322, and a part of the outer layer flue of the smoke guide pipe 323, which is located outside the housing 1, is provided with a vent hole. When the smoke guide pipe 323 is installed, one end of the smoke guide pipe 323 is inserted outdoors, and the vent hole is located outdoors, so that outdoor air can enter the heating chamber 102 through the vent hole, oxygen required for combustion reaction is supplied to the burner 312, and indoor air is not consumed, and safety is high.

The gas heating device 3 in the embodiment of the present application further includes a second water inlet pipe 36 and a water outlet pipe 37, the second water inlet pipe 36 communicates the heat exchanger 311 with the water supply device, a water inlet joint 361 is further installed at a water inlet of the second water inlet pipe 36, and the water inlet joint 361 can be conveniently connected with an external waterway pipe; an outlet conduit 37 communicates the heat exchanger 311 with the first inlet conduit 21.

The gas inlet of the burner 312 is further connected with a gas pipeline 38, and the gas pipeline 38 is communicated with a gas supply device, so that gas supply to the burner 312 is realized; similarly, a gas joint is also installed at the inlet of the gas pipeline 38.

It should be noted that, except for the openings for passing through the second water inlet pipe 36, the water outlet pipe 37, the gas pipe 38, the smoke guide pipe 323 and necessary electric wires, etc., the housing 1 forming the heating chamber 102 of the present application is hermetically provided in other areas, and the dishwasher 100 employs a double-layer smoke pipe, which meets the requirements of GB6932-2015 for a balanced combustion water heater.

The second water inlet pipe 36 is provided with a flow regulator 362 and a temperature detector 363, the flow regulator 362 can regulate the water inlet flow of the heat exchanger 311, and the temperature detector 363 is installed on the second water inlet pipe 36 and is used for detecting the water temperature in the second water inlet pipe 36.

The flow regulator 362 may be a flow regulating valve or a water servo valve. The flow regulating device 362 in the embodiment of the application is a water quantity servo valve which can realize accurate temperature control, so that the fluctuation range of water temperature in continuous use is small, water with preset temperature is continuously output, and the water quantity is stable; and the water quantity servo valve is electrically connected with the temperature detection device 363, and according to the water inlet temperature detected by the temperature detection device 363 and the preset water outlet temperature, the flow regulation device 362 can regulate the water inlet speed of the heat exchanger 311 so as to regulate the water flow entering the heat exchanger 311, thereby ensuring the stable water outlet temperature of the heat exchanger 311.

When the flow regulating device 362 is a flow regulating valve, a special controller needs to be configured to regulate and control the flow regulating valve, and the controller is electrically connected with the flow regulating valve and the temperature detecting device 363.

Referring to fig. 2, a gas control valve 381 is installed on the gas pipe, and the gas control valve 381 can control whether or not gas is supplied to the burner 312 and adjust the degree of opening thereof to adjust the intake speed of the burner 312. Specifically, the above-described gas control valve 381 may be a proportional regulating valve.

In order to reasonably control the combustion load of the burner 312, the dishwasher 100 of the embodiment of the present application further includes a controller, the controller is electrically connected to the temperature detection device 363 and the gas control valve 381, and the controller can control the opening degree of the gas control valve 381 according to the temperature value detected by the temperature detection device 363, that is, the embodiment of the present application can adjust the opening degree of the combustion control valve according to different water inlet temperatures, so as to adjust the gas quantity entering the burner 312, thereby adjusting the heat supply quantity required by the burner 312 and reducing the energy consumption.

It should be noted that the controller may be a controller dedicated to control the gas heating device 3, or may be an overall controller for controlling the washing operation of the dishwasher 100. The housing 1 is further provided with a control device electrically connected with the controller, the control device can interact with a user, and the user can send control instructions such as washing mode selection, washing mode operation, washing mode suspension and the like through the control device. In particular, the control means may be a control button or a control panel.

Actual heating capacity Q of the gas heating apparatus 3 _s The calculation formula of (2) is as follows:

Q _s ＝(25℃×L)/(T _out -T _in )。

wherein L is the rated liter number of the gas heating device 3, T _out T is the temperature of the water outlet of the heat exchanger 311 (a temperature detector is also installed in the water outlet pipe 37 or at the water outlet of the heat exchanger 311) _in The temperature of the incoming water to heat exchanger 311.

According to the actual heating capacity Q of the gas heating device 3 _s And the calculation formula of the international standard rated heat load is as follows: q _f ＝2×Q _s Calculating the combustion load Q of the gas heating apparatus 3 _f 。

For example, in one embodiment of the present application, the rated number of liters L of the gas heating device 3 is 10L/min, and the heat exchange is performedInlet water temperature T of the vessel 311 _in At 20 deg.C, the outlet water temperature T of the heat exchanger 311 _out At 70 ℃, calculating the actual heating capacity Q of the gas heating device 3 according to the formula _s 5L/min, combustion load Q of the gas heating device 3 _f At 20 KW.

In the dishwasher 100 to which the gas heating apparatus 3 is attached, if the storage tank 33 has a capacity of 2.5L, the storage tank 33 can be filled with water of 70 ℃ after heating for 30 seconds, and the heating rate is short.

When a user sends a washing instruction through the control device, a self-checking process is performed (the self-checking process refers to the fact that the controller checks the conditions of various components in the dishwasher 100), and a heating process is started after the self-checking process is completed; the heating process comprises the following steps: the smoke exhaust fan 322, the second control valve 34 and the gas control valve 381 of the gas heating device 3 are all turned on, the third control valve 35 is kept turned off, the flow rate of water entering the heat exchanger 311 is adjusted by the flow rate adjusting device 362 (for example, the flow rate of water is 5L/min), the igniter is ignited, the burner 312 starts to burn, and before the water in the storage water tank 33 is full (or reaches a preset water amount), for example, the water amount Q of the storage water tank 33 _c Less than 2.5L, burner 312 continues to burn; when the water in the storage water tank 33 is full (or reaches a preset water amount), a post-cleaning mode is executed, wherein the post-cleaning process means that both the second control water valve 34 and the gas control valve 381 are closed, the flow rate adjusting device 362 adjusts the water flow rate entering the heat exchanger 311 to be zero, the burner 312 stops burning, the smoke exhaust fan 322 in the gas heating device 3 is kept on, and the smoke exhaust fan 322 can lead out the residual smoke in the heating chamber 102, so that the dishwasher is safer. At the on time t of the exhaust fan 322 _q Reach the preset safe time t _q0 Then, the exhaust fan 322 is turned off, and the post-cleaning process is completed.

When the water of the storage tank 33 is filled (or reaches a preset amount of water), the washing process is started. The washing process comprises the following steps: controlling the third control valve 35 to be opened, starting timing (the controller can be provided with a timer), starting the washing water pump 24, pumping the storage water tank 33 into the spraying device 26 by the washing water pump 24, and spraying washing water to the objects to be cleaned in the cleaning chamber 101 through the spraying device 26;when the water amount entering the cleaning chamber 101 reaches a predetermined level (for example, a flow sensor is installed on the washing water pump 24, the controller can calculate the water amount or level entering the cleaning chamber 101 according to the water flow amount and the spraying time detected by the flow sensor), or the water amount Q of the storage tank 33 _c Below a predetermined minimum water quantity Q _min (e.g. preset minimum water level Q) _min 0.1L), the third control valve 35 is closed, the washing water pump 24 is kept opened, and the washing water pump 24 can repeatedly and circularly pump the water in the cleaning chamber 101 into the cleaning chamber 101, so that the objects to be cleaned are repeatedly cleaned, and the cleaning effect is better.

If the number of times of washing i set by the dishwasher 100 is multiple times of washing, the number of times of washing is N, for example, the number of times of washing N is 3, when the number of times of washing i does not reach N and the timer counts the remaining washing time t _s Reaching the starting heating time t _r (e.g., remaining washing time t) _s Equal to the preset buffer time plus the heating time required by the gas heating device 3 to heat the preset water amount), the heating process is restarted without waiting for heating, thereby shortening the washing time of the dishwasher 100. And when the washing times i reach N, finishing the whole washing process after the time of the washing process is finished.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A dishwasher, comprising a housing in which a washing chamber is formed, the housing having mounted therein:

cleaning the assembly;

the gas heating device, gas heating device and water supply installation intercommunication, and be used for the heating the washing water that water supply installation provided, wash the subassembly with gas heating device intercommunication, it can with the washing water after the gas heating device heating spout to wash on the article to be washd in the purge chamber.

2. The dishwasher of claim 1, wherein the gas heating device comprises:

the gas heating assembly is connected between the water supply device and the cleaning assembly;

lead the cigarette subassembly, it sets up to lead the cigarette subassembly the top of gas heating element, and be used for with the flue gas that gas heating element produced is derived.

3. The dishwasher of claim 2, the gas heating assembly comprising:

one end of a heat exchange pipeline in the heat exchanger is communicated with a water supply device, and the other end of the heat exchange pipeline in the heat exchanger is communicated with the cleaning assembly;

a burner located below the heat exchanger and capable of heating water in the heat exchanger;

an igniter mounted at an air inlet of the burner.

4. The dishwasher of claim 3, wherein the smoke guide assembly comprises:

the smoke collecting hood is internally provided with a smoke collecting cavity and is covered on the heat exchanger;

the smoke exhaust fan is communicated with the smoke collecting cavity in the smoke collecting hood and the smoke guide pipe respectively; one end of the smoke guide pipe, which is far away from the smoke exhaust fan, is arranged outside the shell in a penetrating way.

5. The dishwasher of claim 4, wherein the smoke guide pipe is a double-layer smoke pipe, an inner layer flue of the smoke guide pipe is communicated with an air outlet of the smoke exhaust fan, and a part of the outer layer flue of the smoke guide pipe, which is positioned outside the housing, is provided with a vent hole.

6. The dishwasher of any one of claims 2 to 5, wherein a heating chamber is further formed in the housing, and the gas heating assembly and the fume guide assembly are both located in the heating chamber.

7. The dishwasher according to any one of claims 2 to 5, wherein the gas heating apparatus further comprises:

and the storage water tank is connected between the gas heating assembly and the cleaning assembly.

8. The dishwasher of any one of claims 3 to 5, wherein the gas heating device further comprises:

a water inlet pipe connected between the heat exchanger and a water supply device;

the temperature detection device is arranged on the water inlet pipeline;

the flow adjusting device is installed on the water inlet pipeline and electrically connected with the temperature detecting device, and is used for adjusting water flow entering the heat exchanger according to the temperature value detected by the temperature detecting device.

9. The dishwasher of claim 8, wherein the gas heating device further comprises:

the gas pipeline is used for being communicated with a gas supply device, and the combustor is communicated with the gas pipeline;

a gas control valve mounted on the gas conduit;

the controller is electrically connected with the temperature detection device and the gas control valve, and is used for controlling the opening degree of the gas control valve according to the temperature value detected by the temperature detection device so as to adjust the gas quantity entering the combustor.

10. The dishwasher of claim 8, wherein the flow regulating device is a water volume servo.

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