CN214433637U

CN214433637U - Steam generating device

Info

Publication number: CN214433637U
Application number: CN202022043017.9U
Authority: CN
Inventors: 覃丽明; 王�琦; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-10-22
Anticipated expiration: 2030-09-17

Abstract

The utility model provides a steam generator, including evaporimeter, working medium cavity and controller be equipped with the gap on the evaporimeter, through the gap will the evaporimeter with working medium cavity intercommunication be equipped with working medium and pressure sensor in the working medium cavity, the working medium absorbs water the inflation in order to trigger pressure sensor, the controller with pressure sensor electric connection. The scale forming degree can be accurately identified, so that the scale can be accurately identified and removed after the scale reaches the scale forming degree preset by the system.

Description

Steam generating device

Technical Field

The utility model relates to a kitchen appliance technical field, concretely relates to steam generator.

Background

Cooking equipment needs to heat water like the steam oven in the use, accumulates the incrustation scale easily on inside heater block, the steam generator, influences heating efficiency promptly after the incrustation scale forms, still makes the energy consumption corresponding improvement, still can lead to the water route to block up and influence the normal use of product even. At present, most electric appliances prompt users to clean or automatically clean after using set time, but the water quality difference of different areas is large, and the time and the degree of scale formation are different, so the following defects still exist in the mode of prompting by setting fixed time:

1. for areas with good water quality, if cleaning agents are wasted due to frequent cleaning, the user experience is not good;

2. in areas with poor water quality, the risk of lagging scale reminding exists, so that the heat efficiency is reduced and even the water channel is blocked.

The utility model provides a steam generator and control method thereof to this problem, make the incrustation scale in the steam generator accurately discerned and is clear away after reaching the scale deposit degree that the system predetermines.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve one of the problem that exists among the prior correlation technique to a certain extent, for this reason, the utility model aims to provide a steam generator, incrustation scale in the distinguishable evaporimeter.

The above purpose is realized by the following technical scheme:

the utility model provides a steam generating device, includes evaporimeter, working medium cavity and controller be equipped with the gap on the evaporimeter, through the gap will the evaporimeter with the working medium cavity intercommunication be equipped with working medium and pressure sensor in the working medium cavity, the working medium absorbs water and expands in order to trigger pressure sensor, the controller with pressure sensor electric connection.

As a further improvement of the utility model, a heating device is arranged in the working medium cavity, and the heating device is used for right the working medium cavity is heated.

As a further improvement of the utility model, be equipped with the exhaust hole on the working medium cavity roof be equipped with first solenoid valve in the exhaust hole, through first solenoid valve is opened or is closed the exhaust hole.

As a further improvement of the utility model the gap department is equipped with the second solenoid valve, the second solenoid valve is used for opening or closing the gap, with will the evaporimeter with working medium cavity intercommunication or wall.

As a further improvement of the present invention, the controller is respectively connected to the first solenoid valve, the second solenoid valve and the heating device electrically.

As a further improvement of the utility model, the working medium chamber set up in by the evaporimeter, just be in the evaporimeter with be equipped with the insulating layer between the working medium chamber.

As a further improvement of the utility model, the working medium covers the bottom surface inside the working medium cavity.

As a further improvement of the present invention, the pressure sensor is disposed on the inner top wall of the working medium chamber.

Compared with the prior art, the utility model discloses an at least including following beneficial effect:

1. the utility model provides a steam generator utilizes the principle that working medium absorbs water inflation, dehydration shrink, to input fixed water yield in the evaporimeter, when clean incrustation scale free or the interior incrustation scale volume of evaporimeter is less in the evaporimeter, the water of input in to the evaporimeter can not follow the gap and spill over to the working medium cavity indoor. When water scale in the evaporator accumulates and reaches a certain amount, water in the evaporator overflows into the working medium cavity from the overflow port, the working medium absorbs water to expand and triggers the pressure sensor, the pressure sensor is changed from zero stress to zero stress and is larger than zero stress, and the controller controls the scale cleaning device to clean the evaporator after detecting that the stress of the pressure sensor is larger than zero. The scale forming degree can be accurately identified, so that the scale can be accurately identified and removed after the scale reaches the scale forming degree preset by the system.

Drawings

FIG. 1 is a schematic view of a steam generator according to an embodiment;

FIG. 2 is a schematic diagram showing the water absorption expansion of the working medium in the embodiment;

FIG. 3 is a schematic view showing the amount of water introduced when the evaporator is free from scale in the example.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.

Referring to the attached drawings 1-3, the utility model discloses a steam generator, including evaporimeter 1, working medium cavity 2 and controller be equipped with gap 11 on evaporimeter 1, through gap 11 will evaporimeter 1 with working medium cavity 2 intercommunication be equipped with working medium 3 and pressure sensor 4 in the working medium cavity 2, the expansion that absorbs water of working medium 3 is in order to trigger pressure sensor 4, the controller with pressure sensor 4 electric connection. Preferably, a scale cleaning device is arranged in the evaporator 1, and the controller is electrically connected with the scale cleaning device.

In the present embodiment, the weirs 11 are provided on the side walls of the evaporator 1. When water in the evaporator 1 is introduced into the working medium chamber 2 through the overflow port 11, the working medium 3 absorbs water and expands to trigger the pressure sensor 4, and the controller controls the scale cleaning device to clean the evaporator 1 after detecting that the stress of the pressure sensor 4 is greater than zero.

The utility model provides a steam generator utilizes the principle of working medium 3 inflation of absorbing water, dehydration shrink, to input fixed water yield in the evaporimeter 1, when clean no incrustation scale or the incrustation scale volume is less in the evaporimeter 1, input to the water in the evaporimeter 1 can not follow gap 11 and spill over in the working medium cavity 2. When water scale in the evaporator 1 accumulates and reaches a certain amount, water in the evaporator 1 overflows into the working medium chamber 2 from the overflow port 11, the working medium 3 absorbs water to expand and triggers the pressure sensor 4, the pressure sensor 4 is changed from zero stress to zero stress and is larger than zero stress, and the controller controls the water scale cleaning device to clean the evaporator 1 after detecting that the stress of the pressure sensor 4 is larger than zero. The scale forming degree can be accurately identified, so that the scale can be accurately identified and removed after the scale reaches the scale forming degree preset by the system.

It also comprises a water tank for delivering a fixed quantity of water into the evaporator 1 each time. When the evaporator 1 is filled with clean scale and the water tank delivers a fixed amount of water into the evaporator 1, the water level in the evaporator 1 is at a first height, the level of the overflow port 11 is at a second height, and the second height is greater than the first height. The water tank injects fixed water quantity L into the evaporator 1 at every time, under the condition of no water scale, the height of the standard water quantity in the evaporator 1 after injecting the fixed water quantity L into the evaporator 1 is the first height H1, the overflow gap 11 is arranged on the side wall of the evaporator 1, the height of the overflow gap 11 is the second height H2, and H2 is greater than H1, so that under the condition of no water scale, the fixed water quantity L is injected into the evaporator 1, and the water in the evaporator 1 cannot enter the working medium chamber 2 through the overflow gap 11.

Along with the increase of the service time, the scale in the evaporator 1 is gradually increased, when the scale amount in the evaporator 1 is accumulated to a certain degree, when a fixed water amount L is injected into the evaporator 1, the water level height in the evaporator 1 is a third height H3 at the moment, the third height H3 is larger than or equal to a second height H2, the water in the evaporator 1 flows into the working medium chamber 2 from the overflow port 11, the working medium 3 in the working medium chamber 2 absorbs water and expands, so that the pressure sensor 4 arranged in the working medium chamber 2 is extruded by the expanded working medium 3, the pressure value of the pressure sensor 4 is larger than zero, and the pressure sensor 4 is electrically connected with the controller, so that the pressure sensor 4 converts a force signal into an electric signal and transmits the electric signal to the controller, and the controller controls the scale cleaning device to clean the evaporator 1.

And a heating device 5 is arranged in the working medium cavity 2, and the heating device 5 is used for heating the working medium cavity 2. And after the working medium 3 absorbs water and expands, the controller controls the heating device 5 to generate heat so as to heat and dry the working medium 3.

And an exhaust hole 6 is formed in the top wall of the working medium cavity 2, a first electromagnetic valve is arranged on the exhaust hole 6, and the exhaust hole 6 is opened or closed through the first electromagnetic valve. When the heating device 5 generates heat to heat and dry the working medium 3, the second electromagnetic valve controls the exhaust hole 6 to be opened to exhaust steam.

And a second electromagnetic valve is arranged at the overflow port 11 and is used for opening or closing the overflow port 11 so as to communicate or isolate the evaporator 1 with the working medium chamber 2. The controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve and the heating device 5 respectively.

The second electromagnetic valve is arranged to communicate the working medium chamber 2 with the evaporator 1 when necessary and isolate the working medium chamber 2 and the evaporator 1 when working independently.

When the water tank delivers a fixed amount of water into the evaporator 1, the second electromagnetic valve opens the overflow opening 11, so that the fixed amount of water is input into the evaporator 1, and when the water level reaches the position of the overflow opening 11, the water in the evaporator 1 can enter the working medium chamber 2 through the overflow opening 11.

When the water level in the evaporator 1 does not reach the height of the overflow 11 after a fixed amount of water is input into the evaporator 1, the evaporator 1 is controlled to operate to deliver steam to the cooking apparatus. The evaporator 1 needs to heat water in the evaporator 1 when working, and the second electromagnetic valve is controlled to close the overflow opening 11 at the moment so as to prevent steam generated by the evaporator 1 from being input into the working medium chamber 2, reduce the heating efficiency of the cooking equipment and influence the normal heating of the cooking equipment.

When a fixed amount of water is input into the evaporator 1, the water level in the evaporator 1 reaches the height of the overflow opening 11, and flows into the working medium chamber 2 from the overflow opening 11, and the working medium 3 absorbs water and expands. After the pressure device is triggered after the working medium chamber 2 absorbs water and expands, the working medium 3 needs to be heated and dried so that the working medium 3 loses water and contracts to recover the original shape. The heating device 5 is controlled to generate heat so as to heat and dry the working medium 3, the second electromagnetic valve is controlled to close the overflow opening 11, the first electromagnetic valve is controlled to open the exhaust hole 6, the second electromagnetic valve is controlled to close the overflow opening 11 so as to prevent heat of the heating device 5 from entering the evaporator 1 from the overflow opening 11, the heating and drying speed of the working medium 3 is reduced, and the first electromagnetic valve is controlled to open the exhaust hole 6 so that water vapor evaporated after the working medium 3 is heated can be exhausted from the exhaust hole 6.

When the scale cleaning device cleans the evaporator 1, the second electromagnetic valve is controlled to be closed to prevent cleaning water for cleaning the evaporator 1 from entering the working medium chamber 2 through the overflow port 11, so that the working medium 3 absorbs water again to expand, and normal use is affected.

In this embodiment, the working medium chamber 2 is disposed beside the evaporator 1 to save space, and a heat insulation layer 7 is disposed between the evaporator 1 and the working medium chamber 2. The arrangement of the heat insulation layer 7 prevents the working medium cavity 2 from being affected when the evaporator 1 is heated, and also prevents the evaporator 1 from being affected when the heating device 5 in the working medium cavity 2 heats the working medium cavity 2. In other embodiments, the working medium chamber 2 and the overflow port 11 of the evaporator 1 may be connected through a water inlet pipe, and the working medium chamber 2 and the evaporator 1 are spaced by a predetermined distance, so that the mutual internal heating is not affected.

The working medium 3 covers the bottom surface inside the working medium chamber 2. So that water entering the working medium chamber 2 through the overflow 11 can be sensed by the working medium 3 quickly. The pressure sensor 4 is arranged on the top wall inside the working medium cavity 2.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. A steam generating apparatus, characterized in that: including evaporimeter (1), working medium cavity (2) and controller be equipped with gap (11) on evaporimeter (1), through gap (11) will evaporimeter (1) with working medium cavity (2) intercommunication be equipped with working medium (3) and pressure sensor (4) in working medium cavity (2), working medium (3) the inflation of absorbing water is in order to trigger pressure sensor (4), the controller with pressure sensor (4) electric connection.

2. A steam generating device as claimed in claim 1, characterized in that a heat generating device (5) is arranged in the working medium chamber (2), which heat generating device (5) is used for heating the working medium chamber (2).

3. A steam generating device as claimed in claim 2, characterized in that a venting opening (6) is provided in the top wall of the working medium chamber (2), a first solenoid valve being provided in the venting opening (6), by means of which the venting opening (6) is opened or closed.

4. A steam generating device according to claim 3, characterized in that a second solenoid valve is provided at the overflow (11) for opening or closing the overflow (11) to connect or disconnect the evaporator (1) to the working medium chamber (2).

5. A steam generating device according to claim 4, characterized in that the controller is electrically connected to the first solenoid valve, the second solenoid valve and the heat generating device (5), respectively.

6. A steam generating device according to any one of claims 1-5, characterised in that the working medium chamber (2) is arranged beside the evaporator (1), and a heat insulating layer is arranged between the evaporator (1) and the working medium chamber (2).

7. A steam generating device according to any one of claims 1-5, characterized in that the working medium (3) covers the bottom surface inside the working medium chamber (2).

8. A steam generating device according to any one of claims 1-5, characterised in that the pressure sensor (4) is arranged in the inner top wall of the working medium chamber (2).