CN210300624U

CN210300624U - Energy storage steaming device

Info

Publication number: CN210300624U
Application number: CN201920066727.8U
Authority: CN
Inventors: 邓力
Original assignee: Shenzhen Hanshi Intelligent Technology Co ltd
Current assignee: Shenzhen Hanshi Intelligent Technology Co ltd
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2020-04-14
Anticipated expiration: 2029-01-15

Abstract

The utility model belongs to the field of cooking appliances, in particular to an energy-storage steaming device, which comprises a container for storing water and steam, a water inlet part for injecting water into the container, an exhaust part for communicating the container and a steaming tool, and a heater for heating the water in the container to a boiling point above the normal pressure; the superheated water/steam is stored in the container, and when the device is used for steaming, the steam generated by the conversion of the steam and the superheated water is released into the steaming tool through the exhaust part. The utility model discloses an energy storage formula plays to evaporate the design, through setting up the heater that the miniwatt slowly preheated, slowly preheats to the evaporation before the water extraction to with steam storage in the container, when the user carries out food and evaporates, release the steam of storage in food evaporates the utensil, and continue the miniwatt and maintain the heating evaporation, and then improved the miniwatt electricity and evaporated the speed that plays of utensil.

Description

Energy storage steaming device

Technical Field

The utility model belongs to the cooking utensil field especially relates to an energy storage plays to evaporate device.

Background

The existing electric steaming tools, such as an electric steam box, an electric steamer and the like, can generate steam by heating water and lead the steam into the electric steaming tools to steam foods. The existing electric steaming tool basically adopts a high-power heater for higher heating speed, when a user needs to steam food, water is heated from normal temperature to be evaporated through the high-power heater, the cost is higher, and the electric steaming tool is a dilemma in the design of the steaming tool. For the low-power electric steaming tool, in the starting stage of steam generation, long steam starting time is needed to wait for water to boil and evaporate, so that the use experience is influenced, and the low-speed temperature rise steaming has negative influence on the quality of steamed food, so that the low-power electric steaming tool is difficult to be well applied in the market.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an energy storage plays to evaporate device aims at solving current miniwatt electricity and evaporates the utensil and play to evaporate the problem that the speed is slow, the steaming quality is poor.

The embodiment of the utility model provides a realize like this, an energy storage plays to evaporate device, the device includes:

a container for storing water and steam, wherein the container is provided with a water inlet and a water outlet,

a water inlet part for injecting water into the container,

an exhaust part for communicating the container and the steaming tool,

and a heater for heating the water in the container to a boiling point at normal pressure or higher;

the superheated water/steam is stored in the container, and when the device is used for steaming, the steam generated by the conversion of the steam and the superheated water is released into the steaming tool through the exhaust part.

Preferably, the steam generator further comprises an energy storage material part which is in contact with the container and the heater and releases accumulated heat to the container when the steam generator starts steaming.

Preferably, a control device is further included, which controls the steam discharge rate of the exhaust portion.

Preferably, the control means controls the steam discharge rate by one or a combination of the following conditions:

the outlet flow rate of the exhaust part is in a time relation with the time in a first preset time period;

in a second preset time period, the steam temperature-time relation in the steaming tool;

in a third preset time period, the steam pressure index-time relation in the steaming tool;

and in a fourth preset time period, the temperature-time index of the food in the steaming tool is set.

Preferably, the energy storage steaming device further comprises a steaming timing controller which sets a corresponding steaming duration according to different types of steamed foods.

Preferably, the energy storage steaming device further comprises a water inlet pump, and the water inlet pump is connected with the water inlet part.

The embodiment of the utility model provides an adopt the energy storage formula to play to evaporate the design, through setting up the heater that preheats, carry out preheating to exceeding the boiling point before water extraction, and keep warm in airtight container, make steaming tool space and food surface heated to higher temperature rapidly, at this moment, when the user carries out food steaming, open the relief valve, the steam that superheated water rapid evaporation produced is released in food steaming tool, the miniwatt maintains the heating evaporation and accomplishes the steaming, and then has improved the speed of evaporating of miniwatt electricity steaming tool. Compared with high-power steaming, the product of the embodiment reduces power consumption, saves energy and protects environment. Compared with other low-power steaming, the steaming speed is high, the quality of the steamed food is improved, and the effect generated when the high-power heater is used for steaming is achieved and exceeded by using the low-power heater.

Drawings

Fig. 1 is a schematic structural diagram of an energy storage steaming device provided by an embodiment of the present invention;

fig. 2 is a schematic view of a connection structure of a control device according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure of a steaming timing controller according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings and the embodiments. It should be understood that the description herein of specific embodiments is intended to be illustrative of the embodiments of the invention and is not intended to limit the embodiments of the invention.

The existing electric steaming tools usually adopt a steam generating device with larger power. When a user steams food, the high-power steaming device directly heats water from normal temperature to evaporation and introduces the water into the food steaming tool, and the high-power heating device maintains the steam discharge rate. In another embodiment, the applicant proposes a solution for maintaining a low power for steaming food, which allows to obtain a higher heating rate of the food than a high power. But the low-power heater can't play fast and evaporate, leads to the steam air current to form the unfavorable invalid period of time of one to food temperature before, the utility model discloses based on this actual demand, the energy storage of design energy storage formula plays to evaporate the device, only uses the low-power heater, through preheating water slowly in advance to be higher than the boiling point and save in playing to evaporate the device, can constant temperature, heat preservation standby this moment. When a user steams food, the pressure is released, and the superheated water releases steam, so that extremely high steaming efficiency is obtained. It should be noted that the utility model discloses subsequent continuous heating evaporation is still based on this low-power plays to evaporate the device. For the existing high-power steaming device, preheating is not necessary, or the preheating is too energy-consuming for the high-power steaming device. With the existing low-power steaming device, it is impossible to use a low-power heater in the subsequent continuous heating and steaming stage. Therefore, it should be understood that the energy storage steaming device of the present invention adopts the continuous heating with low power to obtain the food heating speed higher than that of the high-power electric steaming tool.

Example one

Referring to fig. 1, the present embodiment provides an energy storage steaming device, which is applied to a food steaming tool, and the device includes: a container 10 for storing water and steam, a water inlet part 20 for injecting and storing water into the container 10, an exhaust part 30 for communicating the container 10 and a steaming tool, and a heater 40 for preheating the superheated water and steam slowly with low power from the water in the container 10; superheated water and steam are stored in the container 10, and when the temperature sensor detects that the temperature of the superheated water reaches a predetermined value, the superheated water and the steam can be steamed, and after the superheated water and the steam are started, the steam is rapidly released into the steaming tool through the exhaust part 30. Specifically, the container 10 refers to a body for containing water or/and steam or/and air in a broad sense, and may be a single structure in which water and steam/air are stored in the same surrounding space, or a combined structure in which water and steam are separately stored in two or more spaces communicating with each other. In this embodiment, the integrated container 10 containing both water and steam is preferred. The integrated container 10 may be made of metal, nonmetal such as stainless steel, zinc alloy, aluminum alloy, glass, ceramic, etc. that satisfies the temperature and pressure of the superheated water/steam. In this embodiment, the integrated container 10 is a stainless steel container 10 with a heat insulation structure.

Specifically, the heat preservation structure can be passive heat insulation and preservation, and can also be active heating and preservation. The heat insulation and preservation refers to the treatment by a heat insulation material, a heat insulation structure or a heat insulation process, wherein the heat insulation material can be an organic heat insulation material, such as polyurethane foam, polystyrene board, phenolic foam and the like, or an inorganic heat insulation material, such as aerogel felt, glass wool, rock wool, expanded perlite, micro-nano heat insulation, foamed cement and the like. Or the double-layer metal can be used for clamping the inner heat-insulating material or vacuumizing the middle of the double-layer metal, thereby structurally preventing the heat in the food steaming tool from being lost to the external environment. The heat preservation part can also be processed by other heat preservation processes. The steam which is preheated is preserved in the container 10, the heat exchange between the inside of the container 10 and the external environment is reduced, and the energy consumption of the steaming device is further reduced, so that the steaming tool adopting the steaming device can be in a standby state with low energy consumption, and a user can obtain the steam with sufficient quantity and temperature when steaming food.

The water inlet 20 is used to introduce water into the container 10 from the outside, and the water inlet 20 should be understood as a control actuator. In this embodiment, the water inlet portion 20 is a water inlet valve, the control device 50 sends a control command to the water inlet valve according to a preset setting, and the water inlet valve executes a control action according to the control command. In this embodiment, the control action includes opening and closing of the inlet valve and the degree of opening and closing of the inlet valve. For example, during the preheating phase, the control device 50 controls the water inlet valve to be fully opened to inject water into the container 10; when the water in the container 10 reaches the preset water level line, the control device 50 controls the water inlet valve to be completely closed to inform that water is injected into the container 10; for another example, when the user is steaming food, the steaming device needs to continuously heat water to generate steam to supply the steam to the food steaming tool, and the control device 50 controls the water inlet valve to maintain 30% of the opening degree according to a preset algorithm to control a certain flow rate to stably supply water into the container 10.

Wherein the exhaust part 30 is used for releasing the steam stored in the container 10 into the food steaming tool, the exhaust part 30 should be understood as a control execution component with feedback. The control conditions for starting the exhaust portion include: 1. the temperature of the water in the container reaches a preset value; 2. and starting steaming instructions. In the present embodiment, the exhaust unit 30 is an exhaust valve, and the control device 50 sends a control command to the exhaust valve according to a preset algorithm, and the exhaust valve performs a control operation according to the control command. In this embodiment, the control action includes opening and closing of the exhaust valve and the degree of opening and closing of the exhaust valve. For example, in the preheating stage, the control device 50 controls the exhaust valve to be completely closed, and the heater 40 heats the superheated water in the container 10 to be automatically evaporated and stored in the container 10; when the user starts to steam the food, the control device 50 controls the exhaust valve to open to release the steam into the food steamer. When steaming food is continuously performed, the control device 50 adjusts the opening and closing degree of the exhaust valve according to the steam temperature and steam flow rate information fed back by the food steaming tool, when the food steaming tool needs a lower steam discharge rate, the exhaust valve reduces the opening degree, and when the food steaming tool needs a higher steam discharge rate, the exhaust valve increases the opening degree. The control device 50 substantially changes the speed of the steaming device for releasing steam into the food steaming tool by adjusting the opening and closing degree of the exhaust valve, namely changes the steam discharge speed for the food steaming tool, and further realizes the regulation and control of the food steaming process to obtain high-quality food.

Wherein a low power slow pre-heating heater 40 is used to heat the water in the container 10 to generate superheated water/steam, the heater 40 being arranged according to the specific structure of the container 10. When the container 10 is an integrated structure in which water and steam are stored in the same surrounding space, the heater 40 is provided in the surrounding space to heat the water; when the container 10 is a combined structure in which water and steam are separately stored in two or more spaces that communicate with each other, the heater 40 may be provided only in the container 10 that can directly heat the water. The heater 40 may be a conventional electric heater 40 that generates heat and absorbs itself by generating eddy currents in an alternating magnetic field using metal, and is different from the heater 40 of the related art in that it is slowly preheated with a small power.

Specifically, the low-power slow preheating means that the heater 40 slowly heats the water to an overheating state through the low-power heater 40 in advance and maintains the water at a specific temperature before the food steamer is started but the food heating operation is not performed. The food steaming tool has the advantage that when the food steaming tool needs to heat food, the steaming starting device can release high-temperature steam for a long time. Because the embodiment of the utility model provides a through the food on the steam forced circulation process food bearing structure for food evaporates the inside high temperature high pressure state that remains all the time of utensil, heater 40 only need can satisfy food through the low-power heating and evaporates subsequent steam demand of utensil, makes the food of this embodiment evaporate the utensil and only need the low-power heater 40 just can realize having heated fast of food and rise to evaporate, and only can maintain food through low-power heater 40 and evaporate subsequent steam demand of utensil. In the prior art, the electric steamer or the electric steam box heats water instantly to steam through the high-power heater 40, and steam of the existing electric steamer or the electric steam box is released to the outside without being recycled, so that the existing electric steamer or the electric steam box needs the high-power heater 40 to continuously heat to maintain a sufficient steam discharge rate.

Example two

The embodiment is improved on the basis of the above embodiment, the heater 40 includes a heating portion 41, an energy storage material portion 42 and an insulating layer 43, the heating portion is disposed at the bottom of the container 10, the heating portion heats the superheated water/water in the container 10, the energy storage material portion 42 is disposed at the bottom of the container 10 and contacts with the heating portion 41 to realize heat conduction, the energy storage material portion 42 can be heated to a high temperature by the heating portion, and the superheated water can continue to release heat to heat the water after being evaporated, so as to form evaporation for a longer time. The main energy material part can be a single or composite material with strong heat storage capacity, such as metal, nonmetal and the like. Because the higher the temperature of the superheated water is, the more the energy is stored, but the higher the temperature and the pressure are, the higher the requirements on the water quantity, the container and the valve are put forward. After the water volume reaches the standard of the pressure container, the manufacturing difficulty and cost can be greatly improved. And the energy storage material outside the container is simple and the energy storage size is not limited. As long as the energy storage material quality and heat transfer to the container is controlled. The intensity and duration of evaporation is easily controlled by controlling the mass-temperature-heat transfer to the container of the energy storage material. And aiming at the energy storage material, a heater and a temperature control system are additionally arranged, which is also a derivative scheme of the technical scheme. The insulating layer 43 is disposed on the outer circles of the container 10 and the energy storage material portion 42, so that the superheated water-steam-heating portion-energy storage material portion forms a relatively closed heat energy system, thereby preventing heat loss and facilitating control of heat balance in the system.

Wherein, the heating part 41 is simultaneously contacted with the superheated water and the energy storage material part 42 in the container 10 to heat the superheated water to complete evaporation and store the thermal energy in the energy storage material part 42. In this embodiment, the heating portion 41 heats the water/superheated water in the container 10 to generate steam according to the preset time and the preset power, the energy storage steaming device often needs to continue to heat the water/superheated water in the container 10 after steaming, the temperature of the superheated water in the container 10 can be maintained under the condition that the heating portion 41 stops heating through the energy storage material portion 42, and the steam in the container 10 can timely transmit heat energy to the superheated water after releasing the heat energy to the discharge portion, so that the superheated water/steam in the container 10 is maintained in a high-temperature evaporation state, so that the heating portion 41 can maintain the amount of heat balance in the container without continuously heating, and energy is saved.

The energy storage material portion 42 refers to a thermal energy storage material disposed around the heating portion, and the thermal energy storage material may be an organic phase change heat storage material, including straight chain alkane, fatty acid, fatty alcohol, polyol, and polymer phase change material; the material can also be a molten salt phase-change heat storage material, the molten salt phase-change material generally consists of fluoride, chloride, nitrate, carbonate and the like of alkali metal, and can be a single-component, double-component or multi-component mixture; the alloy phase-change heat storage material can also be a binary, ternary or quaternary alloy mainly composed of single metal or multiple metals and the like.

The insulating layer 43 is passive heat insulation. The heat insulation material can be organic heat insulation material, such as polyurethane foam, polystyrene board, phenolic foam and the like, or inorganic heat insulation material, such as aerogel felt, glass wool, rock wool, expanded perlite, micro-nano heat insulation, foamed cement material and the like, through heat insulation material, heat insulation structure or heat insulation process treatment. The insulation structure may be a double metal sandwich with insulation material or a double metal sandwich with vacuum pumping, thereby structurally preventing heat in the container 10 from escaping to the outside environment. The insulating layer 43 may also be treated by other insulating processes. Through the arrangement, heat exchange between the inside of the container 10 and the external environment is reduced, and heat loss in the air is avoided.

EXAMPLE III

The present embodiment is modified from the above-described embodiments, and further includes a control device 50, and the control device 50 controls the steam discharge rate of the exhaust portion 30.

The steam exhaust discharge rate refers to the amount of steam released from the container 10 of the steaming device to the food steaming tool through the exhaust part 30 per unit time.

Wherein said control means 50 further comprises a water temperature control which monitors the temperature of the water/superheated water in the container 10 by providing a water temperature sensor 51 in the container 10.

As shown in fig. 2, the control device 50 is connected to the water temperature sensor 51, the water inlet part 20, the air outlet part 30 and the heater 40, and the connection may be a communication connection implemented by a wireless communication method such as infrared, bluetooth, radio frequency, etc., or an electrical coupling implemented by a wired method such as an electric circuit, an integrated circuit, etc.

Specifically, the control device 50 may be a circuit including at least one processor, a circuit including at least one single chip, a combination of multiple circuits or chips, or a common circuit including an amplifier, a comparator, a transistor, and a MOS transistor, and implements corresponding functions in a pure hardware manner.

It can be understood that the control device 50 can be controlled by the control circuit in combination with a button, or by the control circuit in combination with software such as the mobile phone APP. The control device 50 may also adopt other control schemes including a communication module, a display module, a storage module, etc. in the prior art, as long as the corresponding control function can be realized.

The relationship includes that the control device 50 controls the degree of opening and closing of the exhaust part 30, and that the exhaust part 30 feeds back information to the control device 50 for further adjustment. The information includes the outlet flow rate of the exhaust part 30, and also includes feedback information such as the superheated water/steam temperature and steam pressure in the food steaming tool space where the exhaust part 30 is located. In this embodiment, the control device 50 adjusts the steam discharge rate of the steaming device through the outlet flow rate fed back by the exhaust part 30. The control device 50 establishes a relationship for controlling the steam discharging rate with the exhaust part 30, so that the control device 50 can simultaneously adjust the working relationship of the water inlet part 20, the exhaust part 30 and the heater 40 based on the current steam discharging rate of the steaming device. For example, when the user steams the food, the steam outlet flow rate fed back to the control device 50 by the exhaust part 30 is greater than the preset threshold, and at the same time, the control device 50 reduces the opening degree of the water inlet part 20, reduces the heating power of the heater 40, and reduces the opening degree of the exhaust part 30, thereby maintaining the steam balance inside the steaming device while reducing the steam discharge rate of the steaming device. Make the continuous work of rising to evaporate the device and maintain dynamic balance, guarantee the stability of food steaming process to improve food steaming efficiency, promote food quality.

Example four

The present embodiment is modified from the above-described embodiment in that the control device 50 controls the steam discharge rate by one or a combination of the following conditions:

the outlet flow rate of the exhaust portion 30 versus time over a first preset time period;

in a second preset time period, the temperature-time relation of the steam in the steaming tool;

and in a fourth preset time period, the temperature-time index of the food in the steaming tool.

Wherein, the first, second, third, fourth of preset time quantum do not refer to the order relation, can be that arbitrary condition independently exists in a time quantum, also can be that arbitrary a plurality of conditions are in a time quantum together, or the combination of a plurality of time quantum, and multiple implementation mode is occasionally specifically realized, does not receive the embodiment of the utility model discloses the restriction. One or a combination of the following conditions should be understood as the corresponding relationship between the control parameters solidified by a program language and built in a computer memory or a processor, the algorithm of the program language adopts the prior art, and the significance of the control of the steam generation rate on solving the technical problem is clarified through the limitation of the control parameters in the embodiment.

Therefore, the embodiment adopts the energy storage type steaming device, and superheated water/steam is firstly stored in the steaming device. In control, the accurate detection and control of the steam discharge rate can be realized only by detecting and controlling the air valve communicated with the food steaming tool by the control device 50, so as to adjust the temperature of the steam in the food steaming tool.

In a concrete application scene, the utility model discloses an energy storage plays to evaporate the device and uses in food evaporates the utensil, and the energy storage plays to evaporate the device and mainly evaporates the temperature regulation heater 40, exhaust portion 30 of interior food of utensil, the operating parameter of portion 20 of intaking according to food. Specifically, the energy storage steaming device controls the power of the heater according to the temperature of the food to realize the degree of heating the superheated water in the container 10, and when the temperature of the food does not reach a preset index, the energy storage steaming device opens the exhaust part 30 to inject steam into the food steaming tool, thereby improving the temperature of the food. When the temperature of the food reaches the preset index but needs to be further heated, the heater 40 reduces the power of the heater, the water inlet part 20 replenishes water into the container according to the storage amount of the superheated water in the container 10, and the air exhaust part 30 intermittently or continuously injects a proper amount of steam into the container according to the temperature of the food in a preset mode. Furthermore, the energy storage steaming device presets multiple modes of power control corresponding to the energy storage steaming device according to the change of the temperature of the food, and further the process of heating the food by the food steaming tool is realized.

In this embodiment, the control of the steam discharge rate should be understood in connection with the food steamer to which the steaming device is applied. The food evaporates and is provided with the ease mouth on the utensil, when the user starts food and evaporates the utensil and evaporate food, the ease mouth is equivalent to the sealing member, and the high temperature steam time that plays to evaporate the device release is full of and restricts inside food evaporates the utensil for food in the food evaporates the utensil can get into the high temperature and evaporate the state fast, has improved food and has evaporated efficiency.

The escape port can be set with escape conditions, the escape conditions can be steam temperature and/or real-time escape flow of steam, and the steam temperature and the escape flow can be fixed values or values dynamically changed and adjusted along with time. The embodiment feeds back real-time data to the steaming starting device and/or the escape port through the detection of the steam temperature and/or the escape flow of the escape port. The control device 50 of the steaming device adjusts the sealing degree of the escape hole and the opening and closing degree of the exhaust part 30 based on the real-time data, meanwhile, the control device 50 performs adaptive control on the water inlet part 20 and the heater 40, the steam balance inside the steaming device is kept, the steam discharge rate of the steaming device can be adjusted based on the real-time feedback data by the control device 50, the food steaming process of the food steaming device is adjusted, the steaming efficiency is improved, and the food quality is improved.

The preferred control form has the advantages that the control of the steaming process of the food steaming tool can be realized at lower cost, the control mechanism of the steaming device and the control mechanism of the escape port are included, and the control of the temperature, the air pressure and the steam flow rate of steam in the steaming tool is further realized, so that the control of the food steaming process is realized, the escape amount of the steam is reduced while high-quality steamed food is obtained, and the energy is saved and the consumption is reduced.

Another more specific control form is based on the above preferred control form, aiming at realizing more flexible and more accurate energy-saving control of the steaming process, which is based on the preset outlet flow-time relation of the steaming starting device; presetting steam temperature-time and steam pressure index-time in the food steaming tool; a predetermined temperature-time index for the food.

Wherein, the preset outlet flow-time relation of the steaming starting device refers to the flow of the steam released into the food steaming tool in unit time by the steaming starting device according to detection. Controlling the steam discharge rate to detect the steam flow rate may be accomplished by providing a steam flow sensor in the exhaust section 30 of the steaming device or/and the food steamer. The steam flow sensor may be electromagnetic, differential capacitive, inductive or strain-resistance.

Specifically, the steam flow sensor may be configured to cooperate with the control device 50, or may serve as one of the signal sensing modules of the control device 50.

In this embodiment, the steam flow sensor is used as one of the signal sensing modules of the control device 50, and the steam flow sensor is in communication connection with the control device 50, so that the steam flow discharged from the steaming device into the food steaming tool within a certain time period is used as a reference signal for controlling the steam discharge rate of the control device 50.

In an intelligent control scheme, the reference signal may be given a coefficient and functional relationship as a variable in a particular algorithm to obtain a control output signal for the rate of steam discharge, for example, when the steam flow of the steaming device is 1m³When the flow rate of the steam is/h, the flow rate of the steam is taken as a characteristic value and is substituted into a specific function S1 to obtain 0.5m³The control output signal of/h causes the control device 50 to reduce the degree of opening of the exhaust portion 30 of the steaming device, thereby reducing the steam discharge rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S1 when the standard heating mode is selected, and the characteristic value corresponding to function S2 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be displayed only on a display for user awareness, or may be used as an internal feedback mechanism to assist in controlling the regulation of the output signal, such as a user input of 1m³A steam discharge rate of/h, and an actual steam flow of 0.5m measured by a steam flow sensor³H, the control device 50 regulates the steaming deviceOpening degree of the exhaust valve to make the steam exhaust rate close to 1m set by user³/h。

Through the arrangement, the steam discharge rate is used as a reference signal for controlling the steam discharge rate by the control device 50, so that the steam discharge rate is always in a dynamic adjustment state, the steam discharge rate can be adjusted in real time according to the requirement of the food steaming tool on the steam discharge rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating.

The preset steam temperature-time relation and steam pressure index-time relation in the food steaming tool mean that the steam discharge rate is adjusted according to the real-time state and the change state of the steam temperature in the specific time or according to the real-time state of the steam pressure in the specific time and the state of the difference value between the steam pressure index and the preset steam pressure index.

Since temperature and vapor pressure have an equivalent relationship in thermodynamic systems. Therefore, the present embodiment can be based on both the preset steam temperature-time relationship and the steam pressure index-time relationship, or can be based on only the preset steam temperature-time relationship or the steam pressure index-time relationship.

Specifically, when the steam discharge rate is adjusted solely according to the preset steam temperature-time relationship, the detection of the steam temperature can be realized by arranging a temperature sensor in the food steaming tool. The temperature sensor may be a common sheet metal sensor, an electronic temperature sensor, or a thermocouple temperature sensor.

Specifically, the temperature sensor may be configured to cooperate with the control device 50, or may serve as one of the signal sensing modules of the control device 50.

In this embodiment, a temperature sensor is used as one of the signal sensing modules of the control device 50. The temperature sensor is communicatively connected to the control device 50 such that the temperature of the steam in the food steamer over time serves as a reference signal for the control device 50 to control the rate of steam discharge.

In an intelligent control scheme, the reference signal may be given certain coefficients and functional relationships as a variable in a particular algorithm to obtainControl output signal for steam discharge rate, for example, when the steam temperature is 100 degrees centigrade, the steam temperature is substituted as a characteristic value into a specific function S3 to obtain 0.5m³The control output signal of/h causes the control device 50 to decrease the opening of the exhaust valve of the steaming device, thereby decreasing the steam discharge rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S3 when the standard heating mode is selected, and the characteristic value corresponding to function S4 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be only displayed on a display for a user to know, or may be used as an internal feedback mechanism to participate in the adjustment of the control output signal, for example, when the user inputs a steam temperature of 105 degrees celsius, and the actual steam temperature measured by the temperature sensor is 100 degrees celsius, the control device 50 adjusts the opening of the exhaust valve of the steaming device, so that the steam discharge rate is a positive value, the air pressure of the food steamer continues to rise, so that the steam pressure (the boiling point of water) continues to rise, and when the temperature of the steam reaches 110 degrees celsius preset by the user, the control device 50 controls the steaming device to stop releasing the steam into the food steamer, and when the steam completes heat exchange with the food to reduce the temperature, the control device 50 continues to control the steaming device to release the steam. Through the arrangement, the steam temperature is used as a reference signal for controlling the steam discharge rate by the control device 50, so that the steam temperature is always in a dynamic adjustment state, the steam discharge rate can be adjusted in real time according to the requirement of the food steaming tool on the steam discharge rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating.

When the steam discharge rate is adjusted according to the preset steam pressure index-time relation, the detection of the steam pressure can be realized by arranging a pressure sensor in the food steaming tool. The air pressure sensor can be a common digital air pressure sensor which processes a vacuum cavity and a Wheatstone bridge on a monocrystalline silicon sheet by using MEMS technology.

Specifically, the air pressure sensor may be configured to cooperate with the control device 50, or may serve as one of the signal sensing modules of the control device 50.

In this embodiment, the air pressure sensor is used as one of the signal sensing modules of the control device 50, and the air pressure sensor is in communication connection with the control device 50, so that the air pressure of the steam in the food steaming tool in a certain time period is used as a reference signal for the control device 50 to control the steam discharge rate.

In an intelligent control scheme, the reference signal may be given a certain coefficient and functional relationship as a variable in a specific algorithm to obtain a control output signal for the steam discharge rate, for example, when the steam pressure is 150kpa, the steam pressure is substituted as a characteristic value into a specific function S5 to obtain 0.5m³The control output signal of/h causes the control device 50 to decrease the opening of the exhaust valve of the steaming device, thereby decreasing the steam discharge rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S5 when the standard heating mode is selected, and the characteristic value corresponding to function S6 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be only displayed on a display for a user to know, or may be used as an internal feedback mechanism to participate in the adjustment of the control output signal, for example, the user inputs a steam pressure of 150kpa, and the actual steam pressure measured by the pressure sensor is 120kpa, then the control device 50 adjusts the opening of the exhaust valve of the steaming device, so that the steam discharge rate is a positive value, the air pressure of the food steaming tool continues to rise, when the air pressure reaches 150kpa preset by the user, the control device 50 controls the steaming device to stop releasing steam into the food steaming tool, and when the steam completes heat exchange with the food to reduce the air pressure, the control device 50 continues to control the steaming device to release steam. Through the setting, steam pressure is as the reference signal of controlling means 50 control steam discharge rate for steam pressure is in the state of dynamic adjustment all the time, can evaporate the utensil promptly according to food and adjust steam discharge rate in real time to steam discharge rate's demand, also can provide abundanter intelligent control scheme according to the demand of user to food heating.

Meanwhile, when the steam discharge rate is adjusted according to the preset steam temperature-time relation and the steam pressure index-time relation, a temperature sensor and a pressure sensor can be arranged on the food steaming tool at the same time, and the detected steam temperature information and the detected steam pressure information are respectively used as reference signals to control the steam discharge rate. The steam temperature and the steam pressure are always in a dynamic adjustment state, the steam discharge rate can be adjusted in real time according to the requirement of the food steaming tool on the steam discharge rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating

The food temperature-time relationship refers to adjusting the steam discharge rate according to the detected real-time state and the change state of the food temperature in a specific time. The detection of the temperature of the food can be realized by interposing a temperature sensing probe on the food. The temperature sensor may be a common metal sheet sensor, an electronic temperature sensor, or a thermocouple temperature sensor, and in this embodiment, the temperature sensing probe is a thermocouple temperature sensor.

Specifically, the temperature sensing probe may be configured with the control device 50, or may serve as one of the signal sensing modules of the control device 50.

In this embodiment, the temperature sensing probe is used as one of the signal sensing modules of the control device 50, and the temperature sensing probe is connected to the control device 50 in a communication manner, so that the temperature of the food within a certain time period is used as a reference signal for the control device 50 to control the steam discharge rate. In an intelligent control scheme, the reference signal may be given a certain coefficient and functional relationship as a variable in a specific algorithm to obtain a control output signal for the steam discharge rate, for example, when the temperature of the food is 90 degrees celsius, the temperature of the food is substituted as a characteristic value into a specific function S7 to obtain 0.5m³The control output signal of/h causes the control device 50 to decrease the opening of the exhaust valve of the steaming device, thereby decreasing the steam discharge rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S7 when the standard heating mode is selected, and the characteristic value corresponding to function S8 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be displayed on a display for the user to know, or may be used as an internal feedback mechanism to participate in the adjustment of the control output signal, for example, the user inputs a steam temperature of 150 degrees celsius, and the actual food temperature measured by the temperature sensing probe is 130 degrees celsius, then the control device 50 adjusts the opening of the exhaust valve of the steaming device, so that the steam discharge rate is a positive value, the air pressure and temperature of the food steamer continues to rise, the steam continues to forcibly circulate to further heat the food under the driving of the steam circulation driving device, and when the food temperature reaches 130 degrees celsius preset by the user, the control device 50 controls the steaming device to stop releasing steam into the food steamer. Through the arrangement, the food temperature is used as a reference signal for controlling the steam discharge rate by the control device 50, so that the steam temperature is always in a dynamic adjustment state, the steam discharge rate can be adjusted in real time according to the requirement of the food steaming tool on the steam discharge rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating.

In one non-intelligent control scheme, the valve indexing-flow relationship is obtained by pre-measurement. The required steam flow is obtained by controlling the valve indexing.

Based on the control mode disclosed above, the control algorithm for the sealing degree of the steaming device and the escape opening can be a control algorithm constructed based on food steaming tools with different power models and actual test structures

EXAMPLE five

In the present embodiment, an improvement is made on the basis of the above-mentioned embodiment, and the energy storage steaming device further includes a steaming timing controller 60 for setting a steaming time period corresponding to different types of steamed foods.

As shown in fig. 3, the steaming timing controller 60 is connected to the heater, and the steaming timing controller 60 can be regarded as a submodule of the control device 50, which corresponds to different steaming food types by presetting different steaming time, and there is a scheme that different food types correspond to different heating time lengths in the prior art, the utility model discloses the idea is improved in that the scheme is applied to the energy storage steaming device that the small power slowly preheats, different from the existing high-power steaming timing controller 60, the high-power timing controller is usually that the rated heating power corresponds to a fixed heating time, and the power-heating time of heating is in an obvious linear relation. The low-power slow heating is different from the high-power heating, the steam generated by the low power does not directly and linearly act on the food heating, the heat energy of the steam and the change of the air pressure after the steam is released to the food steaming tool influence the food heating efficiency, and the control device 50 can adjust the power of the heater 40 according to the steam discharge rate, so that the power of the low-power slow heating is dynamically changed, and correspondingly, the heating time is also dynamically changed. The present embodiment presets the heating time by providing an algorithm for controlling the steaming time by a sub-module, which should be associated with other parameters of the control device 50 according to the actual specifications of the steaming device, rather than a separate stand-alone module. So that the steaming timing controller 60 is not a conventional controller which presets a fixed heating time, but a user can obtain a desired steaming effect only according to the kind of the steamed food.

EXAMPLE six

In this embodiment, an improvement is made on the basis of the above embodiment, and the energy storage steaming device further includes a water inlet pump 70, and the water inlet pump 70 is connected with the water inlet portion 20.

Specifically, the water inlet pump 70 is a fixed displacement pump, which refers to the water inlet pump 70 with a fixed output flow rate under the condition of a constant rotation speed.

Further, the constant delivery pump is connected with the control device 50, the control device 50 controls the water inlet of the container 10 by controlling the water inlet part 20 and the constant delivery pump, the constant delivery pump can be specifically set according to the specification of the steaming device selected and used actually, and the constant delivery pump and the water inlet part 20 can realize the control of the water inlet flow through a preset algorithm. When a user begins to steam food, the energy storage steaming device rapidly releases the steam stored in the container 10 into the food steaming tool, and at this time, the water inlet part 20 can timely inject water into the container 10 through the arrangement of the water inlet pump 70, so that the heater 40 continues to heat and generate steam in a continuous heating stage.

Specifically, the energy storage steaming device of the present embodiment is further provided with a safety valve 80, which is connected to the container 10 by a safety method, and releases the steam in the container 10 to the outside when the pressure of the steam in the container 10 exceeds a preset safety value. It should be noted that the arrangement of the safety valve 80 needs to be adapted to the structure of the container 10. When the container 10 is an integrated structure for storing water and steam in the same surrounding space, the safety valve 80 is directly connected to the container 10; when the container 10 is a combined structure in which water and steam are respectively stored in two or more spaces communicating with each other, the safety valve 80 is connected to the container 10 in which steam is stored or a space communicating with the container. When the water pressure is sufficient, the fixed displacement pump may not be used. When the water amount is enough, residual water is remained after steaming, and then the water amount is kept to be supplemented to the water level. The water supply is slightly greater than the evaporation amount, and the water supply is large and insufficient, which can cause insufficient or stop evaporation.

EXAMPLE seven

An energy storage steaming device, which is used in a food steaming tool and is executed by a control device 50, and comprises:

s10 sending a first control command to the water inlet part 20 to open the water inlet part 20 to inject water to be heated and evaporated into the container 10;

s20 sending a second control command to the water inlet part 20 and the air outlet part 30 to close the water inlet part 20 and the air outlet part 30, respectively;

before the steaming of the S30 device, a third control command is sent to the heater 40, the heater 40 slowly preheats water in the container 10 with low power according to the third control command to generate steam, and the steam is stored in the closed container 10;

when the steaming is started by the S40 apparatus, a fourth control command is sent to the exhaust unit 30, and the exhaust unit 30 quickly releases the steam stored in the container 10 into the steaming tool according to the fourth control command.

Specifically, in step S10, before the user uses the food steamer to steam the food, the energy storage steaming device is started. The steaming device sends a water inlet starting control instruction to the water inlet part 20 through the control device 50, and the water inlet part 20 adjusts the opening degree thereof according to the instruction, so that water can enter the container 10. In the scheme provided with the water inlet pump 70, the control device 50 also sends a control command to the water inlet pump 70, the water inlet pump 70 delivers water into the container 10, and when the water in the container 10 reaches a preset water level, the water inlet pump 70 stops operating, and simultaneously the water inlet part 20 and the air exhaust part 30 are closed, so that the container 10 forms a closed space.

Specifically, in step S20, before the user uses the food steamer to steam the food, if the user plans to use the food steamer recently to steam the food, the preheating function of the energy storage steaming device is started. The steaming starting device sends a control command for starting preheating to the heater 40 through the control device 50, the heater 40 starts heating the water in the container 10 according to the control command, the water is slowly heated until being evaporated, and the steam fills the closed space of the container 10. When the control device 50 detects that the air pressure in the container 10 reaches a preset threshold value, a control instruction for stopping preheating is sent to the heater 40, the steam is stored in the closed space, so that heat dissipation is very slow, and when the air pressure in the closed space, where the steam is slowly dissipated, is low to the preset threshold value, the control device 50 sends the control instruction for starting preheating to the heater 40 again, so that high-temperature steaming is always stored in the container 10 for use when a user steams food.

Specifically, S30, when the user uses the food steamer to steam food, the corresponding type of the steamed food on the energy storage steaming device is started. The steam starting device sends a control command for starting steam release to the exhaust unit 30 through the control device 50. The exhaust part 30 adjusts the opening degree thereof according to the control instruction, and the high-temperature steam stored in the container 10 is quickly released into the food steaming tool for steaming the food, thereby achieving the purpose of quickly steaming the food.

Specifically, S40, when the user uses the food steamer to steam food, the energy storage steaming device controls the heating time and intensity according to the type of the food to be steamed selected by the user, when the food steamer needs a stable steam discharge rate, the exhaust part 30 maintains the opening degree of itself, and the water inlet part 20 and the heater 40 are adaptively controlled according to the water and the steam in the container 10; when the food steaming tool needs to increase the steam discharge rate, the opening degree of the exhaust part 30 is increased, meanwhile, the heating power of the heater 40 is increased, and the water inlet part 20 is adaptively adjusted according to the water and the steam in the container 10; when the food steamer needs to reduce the steam discharge rate, the exhaust part 30 is opened to a lower degree, the heater 40 is heated to a lower power, and the water inlet part 20 is adjusted adaptively according to the water and the steam in the container 10. Through the setting, the energy storage steaming device can timely respond and adjust to the demand of the steam discharge rate according to the food steaming tool, so that the food steaming process is controlled, the food steaming efficiency is improved, the food steaming quality is improved, and different types of steamed food are obtained.

Therefore, the embodiment of the utility model provides an adopt the energy storage formula to play to evaporate the design, through setting up the heater 40 that the miniwatt preheats slowly, to carrying out slowly preheating to the evaporation before the water extraction to with steam storage in container 10, when the user carries out food steaming, release the steam of storage in food steaming utensil, and continue the miniwatt and maintain the heating evaporation, and then improved the speed of evaporating that plays of miniwatt electricity steaming utensil, compare in high-power play and evaporate the words, the product of this embodiment reduces the consumption, and is energy-concerving and environment-protective. Compared with other low-power steaming, the steaming speed is high, the quality of steamed food is improved, the low-power heater 40 is used in the continuous heating and evaporating stage, the plurality of heaters 40 are not needed, and the cost is saved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the embodiments of the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the embodiments of the present invention should be included in the scope of the embodiments of the present invention.

Claims

1. An energy storage steaming device, comprising:

a water inlet part for injecting water into the container,

an exhaust part for communicating the container and the steaming tool,

superheated water/steam is stored in the container, and when the device is started to steam, the steam and steam generated by the conversion of the superheated water are released into the steaming tool through the exhaust part.

2. The energy storing steaming device of claim 1, further comprising an energy storing material portion in contact with the container and the heater for releasing accumulated heat to the container upon steaming.

3. The energy storage steaming device of claim 1, further comprising a control device that controls a steam discharge rate of the exhaust portion.

4. The energy storage steaming device of claim 1, further comprising a water inlet pump connected to the water inlet portion.