CN110397898B

CN110397898B - Cloud processing solar steam generator with intelligent water level control function

Info

Publication number: CN110397898B
Application number: CN201811059831.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Shandong Linuorit Energy Saving And Environmental Protection Technology Co Ltd
Current assignee: Shandong Linuorit Energy Saving And Environmental Protection Technology Co Ltd
Priority date: 2018-04-24
Filing date: 2018-09-12
Publication date: 2022-08-23
Anticipated expiration: 2038-09-12
Also published as: CN110397898A

Abstract

The invention provides a solar steam generator which comprises a reflector and a steam drum, wherein the steam drum is positioned at the focus position of the reflector, an electric heater for supplementing heating is arranged in the steam drum, and a temperature sensor is arranged in the steam drum and used for measuring the temperature of water in the steam drum; temperature sensor, electric heater and controller data connection, the high in the clouds server is connected to the controller, and the high in the clouds server is connected with the client, and wherein the controller transmits the data transmission of measuring temperature sensor, electric heater for the high in the clouds server, then sends the client to through the high in the clouds server, the client is the cell-phone, cell-phone installation APP program, the user can select automatic control or manual control's mode at the client, and the controller controls electric heater unit's heating power according to the mode of control customer selection. The invention controls the temperature of water in the steam drum by intelligently controlling the heating power of the electric heater, thereby ensuring that the temperature of the steam output under the condition of insufficient solar energy meets the requirement and further improving the intellectualization of the system.

Description

Cloud processing solar steam generator with intelligent water level control function

Technical Field

The invention relates to a steam generator technology, in particular to a steam generator of a heat pipe with a novel structure.

Background

The heat pipe technology is Luo Si Alamoss (Los Alamos) in 1963National laboratoryGeorge Grover, a heat transfer called "heat pipe" of the inventionComponentThe heat conduction principle and the quick heat transfer property of the phase change medium are fully utilized, the heat of a heating object is quickly transferred to the outside of a heat source through the heat pipe, and the heat conduction capability of the heat pipe exceeds the heat conduction capability of any known metal.

The heat pipe technology is widely applied to the industries of aerospace, military industry and the like, and since the heat pipe technology is introduced into the radiator manufacturing industry, people change the design idea of the traditional radiator, get rid of the single heat dissipation mode of obtaining better heat dissipation effect by only depending on a high-air-volume motor, adopt the heat pipe technology to ensure that the radiator obtains satisfactory heat exchange effect, and open up a new place in the heat dissipation industry. At present, heat pipes are widely applied to various heat exchange devices, including the field of electric power, such as waste heat utilization of power plants.

Steam generators are mechanical devices that utilize the heat energy of a fuel or other energy source to heat water into steam. The steam generator has wide application field, is widely suitable for clothing factories, dry cleaning shops, restaurants and bunkers,dining room，Dining roomThe method is used for the production of industrial and mining,bean productFactories, etc. The current steam generator is also widely applied to the treatment of various diseases, especially to the treatment of chronic diseases caused by aging and old damage of muscles, ligaments and the like, for example, the CN2167709Y patent, but in the current prior art, for example, the CN2167709Y patent, the temperature of the generated steam is too high and the moisture in the generated steam is too high because the steam is directly generated by heating, and the medicine is possibly deposited at the lower part because the medicine is particles, so that the content of effective components in the sprayed steam is too low and the temperature is too high, and the intelligence degree in the prior art is not high, and the effective intelligent operation cannot be carried out.

In the background art, when a steam generator is heated by solar energy, the steam drum is heated by solar energy or directly, or steam is generated by secondary heat exchange, particularly the steam drum is heated directly, fluid convection heat exchange of the upper part and the lower part of the steam drum is carried out by convection heat exchange inside the steam drum, but in this case, a lower hot fluid is required to naturally convect to the upper part, and the heat exchange efficiency is low.

The existing solar steam generator is low in output efficiency, low in intelligent degree and troublesome in remote monitoring, so that the solar steam generator based on intelligent control needs to be designed.

Aiming at the problems, the invention is improved on the basis of the invention, and provides the steam generator with a new structure, which makes full use of a heat source, reduces energy consumption and realizes remote intelligent control.

Disclosure of Invention

In view of the above problems, the present invention is an improvement on the foregoing invention, and provides a new steam generator with a heat pipe structure to fully utilize solar energy.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a solar steam generator comprises a reflector and a steam drum, wherein the steam drum is positioned at the focal position of the reflector, the reflecting mirror reflects the solar energy to the steam drum for heating water in the steam drum, the steam drum comprises a water inlet and a steam outlet, the water inlet is provided with a water pump, an electric heater for supplementing heating is arranged in the steam pocket, a water level sensor is arranged in the steam pocket, the water level sensor and the water pump are in data connection with a controller, the controller is connected with a cloud server, the cloud server is connected with a client, wherein the controller transmits the measured data of the water level sensor and the water pump to the cloud server, and then transmits the data to the client through the cloud server, the client is a mobile phone, the mobile phone is provided with an APP, a user can select an automatic control working mode or a manual control working mode at the client, and the controller controls the power of the water pump according to the working mode selected by the user.

Preferably, in the manual control operation mode, the user obtains the water level data of the water level sensor and the power data of the water pump from the client, and the power of the water pump is manually controlled at the client.

Preferably, in the automatic control operation mode, the controller automatically controls the power of the water pump according to the measured water level in the steam drum, and if the water level is lowered, the controller increases the power of the water pump to increase the flow rate of water entering the steam drum, and if the water level is too high, the controller decreases the power of the water pump or turns off the water pump to decrease the flow rate of water entering the steam drum or stops supplying water into the steam drum.

Preferably, the controller controls the water pump to supply water at a first power when the measured water level is lower than a first water level; when the measured water level is lower than a second water level lower than the first water level, the controller controls the water pump to supply water at a second power higher than the first power; when the measured water level is lower than a third water level lower than the second water level, the controller controls the water pump to supply water at a third power higher than the second power; when the measured water level is lower than a fourth water level lower than the third water level, the controller controls the water pump to supply water at a fourth power higher than the third power; when the measured water level is lower than a fifth water level lower than the fourth water level, the controller controls the water pump to supply water at a fifth power higher than the fourth power.

Preferably, a communication pipe is provided between at least two adjacent heat pipes.

Preferably, the steam drum and the heat pipe are integrally manufactured.

Preferably, the heat pipes are annularly distributed in multiple layers around the bottom center point of the steam pocket; and arranging a plurality of layers of heat pipes along the bottom center point of the steam pocket, wherein the distance between the axis of each layer of heat pipe and the center point is the same, so that an arc structure taking the bottom center point of the steam pocket as the center of a circle is formed.

Preferably, in the horizontal plane projection, the outer diameter of the heat pipe is D, the distance between the centers of adjacent heat pipes in the same layer is L, the vertex angle of an isosceles triangle formed by the center of the heat pipe and the centers of adjacent two heat pipes in adjacent rows is N, the diameter D2 of the circle in the same layer and the diameter D1 of the circle in the adjacent inner layer satisfy the following requirements:

Sin(N)＝a-b*S ² -c S, S D/(D2-D1), a, b, c are parameters satisfying the following requirements:

0.846<a<0.848,0.529<b<0.530,0.846<b<0.848；

0.3<d/L<0.5。

preferably, the bottom of the lower end of the heat pipe is the inner wall of the steam drum.

Preferably, the centre of the steam drum is located at the focal position of the mirror.

Preferably, the bottom of the steam drum is provided with a header, and the lower part of the heat pipe is communicated with the header.

Preferably, the lower wall surface of the header is the surface of the bottom of the steam drum.

Preferably, a is larger, b is smaller, and c is larger as d/L is smaller.

Compared with the prior art, the invention has the following advantages:

1) the invention intelligently controls the power of the water pump through the client, thereby ensuring that the water level meets the requirement, avoiding overhigh or overlow, and further improving the remote control intelligence of the system.

2) The solar steam generator is improved, the heat pipe is arranged at the bottom of the steam drum, and solar energy is quickly transmitted to the upper part of the steam drum through the characteristic of high heat transmission speed of the heat pipe, so that the heat transmission speed of the solar energy is improved, and the heat absorption capacity can be further met.

3) The communicating pipe is arranged between the adjacent heat pipes, so that uneven heating between the heat pipes can be avoided, pressure balance between the heat pipes is realized, and the defect caused by uneven heating between different heat pipes is avoided.

4) The invention can ensure that the pressure is balanced as soon as possible in the flowing process of the fluid through the distribution quantity of the communicating pipes and the change rule of the pipe diameters.

5) A large amount of numerical simulation and experimental research are carried out on the distribution rule of the heat pipes, and the optimal relational expression of the heat pipe distribution is summarized on the basis of the research.

Drawings

Fig. 1 is a schematic view of the solar steam generator according to the present invention.

Fig. 2 is a schematic view of the structure of the communicating tube of the steam generator of the present invention.

FIG. 3 is a schematic diagram of a horizontal projection structure of a heat pipe according to the present invention.

FIG. 4 is a schematic diagram of a control structure according to the present invention.

In the figure: 1-reflector, 2-steam drum, 3-heat pipe, 4-water inlet, 5-steam outlet, 6-communicating pipe, 7-central controller, 8-cloud server, 9-client

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

In this document, "/" denotes division and "×", "denotes multiplication, referring to formulas, if not specifically stated.

As shown in fig. 1-4, a solar steam generator using heat pipes is disclosed, the steam generator includes a reflector 1 and a steam drum 2, the steam drum 2 is located at a focal position of the reflector 1, the reflector 1 reflects solar energy to the steam drum 2 for heating water in the steam drum 2, the steam generator further includes a plurality of heat pipes 3 disposed in the steam drum 2, as shown in fig. 1, the heat pipes 3 are disposed inside the steam drum 2 and extend upwards from the bottom of the steam drum 2, and the bottoms of the lower ends of the heat pipes are connected to the inner wall of the steam drum.

According to the traditional solar steam generator, the steam pocket is directly irradiated by sunlight to generate steam, and the convection heat exchange of the upper part and the lower part of the steam pocket is carried out by utilizing the convection heat exchange in the steam pocket, but in the condition, the lower part hot fluid naturally convects to the upper part, so that the heat exchange efficiency is low.

Preferably, the bottom of the lower end of the heat pipe 3 is the inner wall of the steam drum 2. Thus, the heat pipe and the steam drum can be taken as a whole, the inner wall of the steam drum is taken as the lower end wall surface of the heat pipe, the contact thermal resistance is reduced, the integral structure is compact,

Preferably, the steam drum and the heat pipe are integrally manufactured.

Preferably, the communication pipe 6 is provided between at least two adjacent heat pipes 3. For example, as shown in fig. 2, a communication pipe 6 is provided between two heat pipes 5 adjacent to each other. Of course, FIG. 2 is merely a schematic illustration and, while only two heat pipes are shown, it is not intended to indicate only two heat pipes. By arranging the communicating pipe 6, uneven heating between the heat pipes 3 can be avoided, pressure balance between the heat pipes is realized, and the defect caused by uneven heating between different heat pipes is avoided.

Preferably, the distance between adjacent communication pipes 6 increases from the lower portion of the heat pipe 3 to the upper portion of the heat pipe 3. Because the heat pipe absorbs solar energy at the bottom and then releases heat in the steam drum. The fluid continuously releases heat along with the upward flow of the vertical part of the fluid of the heat pipe, and the pressure in different heat pipes is gradually reduced along with the continuous heat release of the fluid, so that the pressure balance can be ensured to be achieved as soon as possible in the flowing process of the fluid, the number of communicating pipes is saved, and materials are saved.

Preferably, the distance between adjacent communication pipes 6 increases from the lower portion of heat pipe 3 to the upper portion of heat pipe 3 to a larger extent. Experiments show that the arrangement can ensure that the pressure balance is achieved more optimally and more quickly in the fluid flowing process. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

Preferably, the diameter of communication pipe 6 is reduced from the lower portion of heat pipe 3 to the upper portion of heat pipe 3. The purpose is to ensure a larger communication area, because the fluid continuously releases heat along with the upward flow of the fluid, and the pressure in different heat pipes is smaller and smaller along with the continuous heat release of the fluid, so that the pressure balance can be ensured to be achieved as soon as possible in the fluid flowing process through the arrangement.

Preferably, the diameter of the communication pipe 6 is reduced from the lower portion of the heat pipe 3 to the upper portion of the heat pipe 3 by a larger amount. Experiments show that the arrangement can ensure that the pressure is equalized more optimally and more quickly in the fluid flowing process. This is also the best way of communicating by extensively studying the law of change of the pressure distribution.

Preferably, the centre of the steam drum is located at the focal position of the mirror. The steam drum center is positioned at the focal position of the reflector, so that the steam drum can be uniformly heated in all directions.

Preferably, the steam pocket is provided with a liquid medicine. The steam generator is a steam generator with a medicine fumigation and washing treatment function.

Preferably, the steam drum comprises a water inlet 4 and a steam outlet 5, the steam generated being directed out of the steam outlet 5.

As another option, the steam generator further comprises a liquid medicine evaporation tank, the liquid medicine evaporation tank is communicated with the steam drum 3 through a pipeline, an atomizer is arranged in the liquid medicine evaporation tank, and the liquid medicine evaporation tank is provided with a steam outlet.

The steam pocket is internally provided with medicines which are soaked in water, when the steam pocket is used, water is heated in the steam pocket through the heat pipe, and the medicines are heated through the water, so that liquid medicine is generated in the steam pocket 3. The generated liquid medicine enters the liquid medicine evaporation tank through a pipeline, is atomized in the liquid medicine evaporation tank and is discharged through the steam outlet. The vapor outlet may be discharged directly against the patient's diseased site for treatment.

The steam drum comprises a steam drum bottom, a plurality of heat pipes and a heat pipe, wherein the heat pipes are distributed in a radial direction from the center of the bottom of the steam drum to the outside, and the distribution density of the heat pipes is smaller and smaller. In numerical simulation and experiments, the heat pipes are heated less and less along the radial direction from the center of the bottom of the steam drum to the outside, and the temperatures of the heat pipes at different positions are different, so that local heating is not uniform. Because the closer to the center, the more the focused solar energy is, the larger the heat receiving amount is, and the heat exchange capacity is increased, therefore, the density of the heat pipes arranged at different positions of the bottom of the steam drum is different, so that the temperature of the whole heat pipe is kept basically the same, the whole heat exchange efficiency is improved, the material is saved, the local damage caused by uneven temperature is avoided, and the service life of the heat pipe is prolonged.

Preferably, the distribution density of the heat pipes is continuously increased in a smaller and smaller range along the radial direction from the center of the bottom of the steam drum to the outside. As the change of the distribution density of the heat pipe, the invention carries out a large number of numerical simulations and experiments, thereby obtaining the change rule of the distribution density of the heat pipe. Through the change rule, materials can be saved, and meanwhile, the heat exchange efficiency can be improved by about 9%.

Preferably, the diameter and length of each heat pipe 3 are the same.

Preferably, the heat pipe 3 is provided in plurality, and the diameter of the heat pipe is smaller and smaller along the radial direction from the center of the bottom of the steam drum to the outside. The specific reason is the same as the reason of the distribution density of the heat pipes in the foregoing.

Preferably, the diameter of the heat pipe is gradually increased in a smaller and smaller range along the radial direction from the center of the bottom of the steam drum to the outside. The specific reason is the same as the reason of the distribution density of the heat pipes in the foregoing.

Preferably, the distribution density and the length of all the heat pipes 3 are the same.

Preferably, the heat pipes 3 are distributed in a ring-shaped multi-layer around the center point of the bottom of the steam drum, as seen from above downwards, or in a horizontal plane projection, as shown in fig. 3.

Preferably, the heat pipe 3 is arranged at the central point, the plurality of layers of heat pipes 3 are arranged along the central point, and the distance between the axis of each layer of heat pipe 3 and the central point is the same, so that an arc structure taking the central point of the bottom of the steam drum as the center is formed.

Through numerical simulation and experiment, it is found that the distance between the heat pipes 3, including the distance at the same diameter position and the distance between adjacent layers, cannot be too small, and the undersize results in the heat pipes being excessively distributed, resulting in insufficient heat absorption capacity of each heat pipe, and the oversize results in the heat pipes being excessively distributed, resulting in overheating of the heat pipes, so that the optimal distribution of the heat pipes 3 is summarized through a large amount of numerical simulation and experiments, and the heat pipes can not absorb insufficient heat and can not absorb excessive heat.

As shown in fig. 3, the inner diameter of the steam drum is D, the outer diameter of the heat pipe 3 is D, the circular arc of the central axis of the adjacent heat pipe on the same layer is N, the distance between the centers of the adjacent heat pipes on the same layer is L, the center of the circular arc is the central axis of the heat accumulator, the diameter D2 of the circle on the same layer and the diameter D1 of the circle on the adjacent inner layer satisfy the following requirements:

0.846<a<0.848,0.529<b<0.530,0.846<b<0.848；

preferably, a is 0.847, b is 0.5292, and c is 0.847.

Preferably, a is larger and b and c are smaller as D2/D is smaller.

Preferably, 0 ° < N <120 °.

Preferably, 10 ° < N <70 °.

The empirical formula is obtained through a large number of numerical simulations and experiments, and the error is basically within 3% through experimental verification.

Preferably, the heat absorption capacity of the heat pipe is 900-;

the inner diameter D is 1300-1500 mm, more preferably 1400 mm.

The heat pipe 3 is 9 to 10 mm, and more preferably 9.5 mm.

Of course, fig. 3 shows only 3 layers of heat pipes, and in practice there may be more than three layers. D2 and D1 in fig. 3 are also merely examples, and actually, the heat pipe at the central axis may be the layer where D1 is located, that is, D1 is 0, and the current D1 is the layer where D2 is located.

Only one half is shown in fig. 3, the other half being symmetrical to it and not described in detail.

Preferably, a temperature sensor is arranged in the steam drum 3 for measuring the temperature of the water in the steam drum 3.

Preferably, a water level sensor is arranged in the steam drum 3 and is used for measuring the water level in the steam drum.

Preferably, a pressure sensor is arranged at the upper part of the steam drum 3 and used for measuring the pressure in the steam drum 3.

Preferably, a flow sensor is arranged on the steam outlet 5 and is used for measuring the steam flow produced in unit time.

Preferably, a temperature sensor is arranged on the steam outlet 5 for measuring the temperature of the steam at the outlet.

Preferably, the temperature sensor, the water level sensor, the pressure sensor and the flow sensor are in data connection with the controller 7.

Preferably, an electric heater is arranged in the steam pocket, so that the electric heater is used for supplementary heating under the condition of insufficient solar energy.

The controller 7 is connected with the cloud server 8, the cloud server 8 is connected with the client 9, the controller 7 transmits measured data (including all sensor data, electric heater data, valve data and the like) to the cloud server 8, the measured data are transmitted to the client 9 through the cloud server 8, the client 9 is a mobile phone, and an APP program is installed on the mobile phone. The user can detect the relevant data in real time at the client.

Outlet steam temperature control

A temperature sensor is arranged at the position of the steam outlet and used for measuring the temperature of the steam outlet; temperature sensor, electric heater and 7 data connection of controller, controller 7 is connected high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transmission of measuring temperature sensor, electric heater, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP procedure, user can select automatic control or manual control's mode at

customer end

9, and 7 control customer selection's mode of controller come electric heater's heating power.

By setting a manual or automatic control mode, a multi-means control mode can be provided for a user, and the intelligent degree of the system is improved.

Preferably, in the manual control operation mode, the user manually controls the heating power of the electric heating device at the client 9 based on the temperature data measured by the temperature sensor and the heating power data of the electric heater obtained at the client 9.

Preferably, in the automatic control working mode, the controller automatically controls the heating power of the electric heating device according to the temperature measured by the temperature sensor, and if the temperature measured by the temperature sensor is lower than a certain temperature, the controller controls the electric heating device to start heating; if the temperature measured by the temperature sensor is higher than a certain temperature, the controller controls the electric heating device to stop heating.

Preferably, the controller automatically increases the heating power of the electric heating apparatus if the temperature data measured by the temperature sensor is lower than a first value, and automatically decreases the heating power of the electric heating apparatus if the temperature data measured by the temperature sensor is higher than a second value, which is greater than the first value.

Preferably, when the measured temperature is lower than the first temperature, the electric heating device starts heating and performs heating at a first power; when the measured temperature is lower than a second temperature lower than the first temperature, the electric heating device heats at a second power higher than the first power; when the measured temperature is lower than a third temperature lower than the second temperature, the electric heating device heats at a third power higher than the second power; when the measured temperature is lower than a fourth temperature lower than the third temperature, the electric heating device heats at a fourth power higher than the third power; when the measured temperature is lower than a fifth temperature lower than the fourth temperature, the electric heating device heats at a fifth power higher than the fourth power.

Preferably, the first temperature is higher than the second temperature by 8-10 ℃, the second temperature is higher than the third temperature by 8-10 ℃, the third temperature is higher than the fourth temperature by 8-10 ℃, and the fourth temperature is higher than the fifth temperature by 8-10 ℃.

Preferably, the first temperature is greater than the second temperature by 9 degrees centigrade, the second temperature is greater than the third temperature by 9 degrees centigrade, the third temperature is greater than the fourth temperature by 9 degrees centigrade, and the fourth temperature is greater than the fifth temperature by 9 degrees centigrade.

Preferably, the fifth power is 1.1 to 1.3 times the fourth power, the fourth power is 1.1 to 1.3 times the third power, the third power is 1.1 to 1.3 times the second power, and the second power is 1.1 to 1.3 times the first power.

Preferably, the fifth power is 1.1 to 1.15 times the fourth power, the fourth power is 1.15 to 1.2 times the third power, the third power is 1.2 to 1.25 times the second power, and the second power is 1.25 to 1.3 times the first power.

The heating power of the electric heater is intelligently controlled, so that the temperature of the steam output under the condition of insufficient solar energy is ensured to meet the requirement, and the intelligence of the system can be further improved.

(II) Hot Water temperature control

Preferably, a temperature sensor is arranged in the steam drum 3 for measuring the temperature of the water in the steam drum 3. Temperature sensor, electric heater and 7 data connection of controller, controller 7 is connected high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transmission of measuring temperature sensor, electric heater, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP procedure, user can select automatic control or manual control's mode at

customer end

Preferably, in the automatic control operation mode, the controller 7 automatically controls the heating power of the electric heating device according to the temperature measured by the temperature sensor, and if the temperature measured by the temperature sensor is lower than a certain temperature, the controller 7 controls the electric heating device to start heating; if the temperature measured by the temperature sensor is higher than a certain temperature, the controller 7 controls the electric heating device to stop heating.

The controller 7 automatically controls the heating power of the electric heating device according to the temperature measured by the temperature sensor.

Preferably, the controller controls the electric heating device to start heating if the temperature measured by the temperature sensor is lower than a certain temperature. If the temperature measured by the temperature sensor is above a certain temperature, for example above a dangerous critical temperature, the controller controls the electric heating device to stop heating in order to avoid overheating.

Preferably, the controller 7 automatically increases the heating power of the electric heating means if the detected temperature data is lower than a first value, and the controller 7 automatically decreases the heating power of the electric heating means if the measured temperature data is higher than a second value, which is higher than the first value.

Preferably, the first temperature is 4-6 ℃ higher than the second temperature, the second temperature is 4-6 ℃ higher than the third temperature, the third temperature is 4-6 ℃ higher than the fourth temperature, and the fourth temperature is 4-6 ℃ higher than the fifth temperature.

Further preferably, the first temperature is 5.5-6 ℃ higher than the second temperature, the second temperature is 5-5.5 ℃ higher than the third temperature, the third temperature is 4.5-5 ℃ higher than the fourth temperature, and the fourth temperature is 4-4.5 ℃ higher than the fifth temperature.

By optimizing the temperature and power, especially by setting the heating power and temperature difference in a differentiated manner, the heating efficiency can be further improved, and the time can be saved. Experiments show that the heating efficiency can be improved by about 10-15%.

Preferably, the temperature sensor is arranged on the bottom wall of the steam drum.

Preferably, the temperature sensor is a plurality of temperature sensors, and the controller controls the operation of the steam generator according to the temperature data measured by the plurality of temperature sensors.

Through intelligent control electric heater heating power to guarantee that hot water temperature satisfies the needs under the not enough condition of solar energy, thereby further guarantee that the steam temperature of output satisfies the requirement, can further improve the intellectuality of system.

(III) Water level control

Preferably, a water level sensor is arranged in the steam drum 3, the water level sensor and the water pump are in data connection with a controller 7, the controller 7 is connected with a cloud server 8, the cloud server 8 is connected with a client 9, the controller 7 transmits data of the measured water level sensor and the measured water pump to the cloud server 8, then the data are transmitted to the client 9 through the cloud server 8, the client 9 is a mobile phone, an APP program is installed on the mobile phone, a user can select an automatic control or manual control working mode at the client 9, and the controller 7 controls the power of the water pump according to the working mode selected by the user.

Preferably, in the manual control operation mode, the user manually controls the power of the water pump at the client 9 based on the water level data of the water level sensor and the power data of the water pump obtained at the client 9.

Preferably, in an automatically controlled mode of operation, the controller 7 automatically controls the power of the water pump in dependence on the measured water level in the drum 3. Preferably, the controller increases the flow of water into the drum 3 by controlling the power of the water pump to be increased if the water level falls, and decreases the flow of water into the drum 3 or stops the supply of water into the drum 3 by reducing the power of the water pump or turning off the water pump if the water level is too high.

Through foretell setting, avoided the water level on the one hand to hang down the steam output rate that causes and hang down and electric heater unit's dry combustion method, caused electric heater unit's damage and produced the incident, on the other hand, avoided because the water level is too high and the water yield that causes is too big, realizes the intelligent control of water level.

Preferably, the controller 7 controls the water pump to supply water at a first power when the measured water level is lower than a first water level; when the measured water level is lower than a second water level lower than the first water level, the controller 7 controls the water pump to supply water at a second power higher than the first power; when the measured water level is lower than a third water level lower than the second water level, the controller 7 controls the water pump to supply water at a third power higher than the second power; when the measured water level is lower than a fourth water level lower than the third water level, the controller 7 controls the water pump to supply water at a fourth power higher than the third power; when the measured water level is lower than a fifth water level lower than the fourth water level, the controller 7 controls the water pump to supply water at a fifth power higher than the fourth power.

Preferably, the first water level is 1.1 to 1.3 times the second water level, the second water level is 1.1 to 1.3 times the third water level, the third water level is 1.1 to 1.3 times the fourth water level, and the fourth water level is 1.1 to 1.3 times the fifth water level.

Preferably, the first water level is 1.1 to 1.15 times the second water level, the second water level is 1.15 to 1.2 times the third water level, the third water level is 1.2 to 1.25 times the fourth water level, and the fourth water level is 1.25 to 1.3 times the fifth water level.

Preferably, the fifth power is 1.7-1.9 times the fourth power, the fourth power is 1.6-1.8 times the third power, the third power is 1.5-1.7 times the second power, and the second power is 1.3-1.5 times the first power.

Through the preferred of above-mentioned water level and water pump power, especially through the settlement of the water level of differentiation and water pump power, can be quick realize the invariant of water level, improve steam output rate, save time. Experiments show that the steam yield can be improved by about 12-16%.

Through the power of intelligent control water pump to guarantee to satisfy the requirement at the water level, avoid too high or low excessively, can further improve the intellectuality of system.

(IV) control of heating power according to water level

Preferably, a water level sensor is arranged in the steam drum 3, the water level sensor and the electric heater are in data connection with a controller 7, the controller 7 is connected with a cloud server 8, the cloud server 8 is connected with a client 9, the controller 7 transmits measured data of the water level sensor and the electric heater to the cloud server 8, the measured data are transmitted to the client 9 through the cloud server 8, the client 9 is a mobile phone, an APP program is installed on the mobile phone, a user can select an automatic control or manual control working mode at the client 9, and the controller 7 controls the heating power of the electric heater according to the working mode selected by the user.

Preferably, in the manual control mode of operation, the user manually controls the heating power of the electric heater at the client 9 based on the water level data of the water level sensor obtained at the client 9.

Preferably, in an automatically controlled mode of operation, the controller 7 automatically controls the heating power of the electric heater in dependence on the measured water level in the steam drum 3. Preferably, if the water level is too low, the controller reduces the power of the electric heater or directly turns off the heating of the electric heater by controlling, so as to avoid that the steam output caused by too high heating power is too large, which causes further reduction of the water level, and if the water level is too high, the steam output is improved by increasing the heating power of the electric heater, which reduces the water level.

Through foretell setting, avoided the water level to hang down excessively to cause electric heater unit's dry combustion method on the one hand, caused electric heater unit's damage and produced the incident, on the other hand, avoided because the water level is too high and the water yield in the steam pocket that causes is too big.

Preferably, the controller 7 controls the electric heating device to heat at a first power when the measured water level is lower than the first water level; when the measured water level is lower than a second water level lower than the first water level, the controller 7 controls the electric heating device to heat at a second power lower than the first power; when the measured water level is lower than a third water level lower than the second water level, the controller 7 controls the electric heating device to heat at a third power lower than the second power; when the measured water level is lower than a fourth water level lower than the third water level, the controller 7 controls the electric heating device to heat at a fourth power lower than the third power; when the measured water level is lower than a fifth water level lower than the fourth water level, the controller 7 controls the electric heating device to heat at a fifth power lower than the fourth power; when the measured water level is lower than a sixth water level lower than the fifth water level, the controller 7 controls the electric heating device to stop heating.

Preferably, the first power is 1.6 to 1.7 times the second power, the second power is 1.5 to 1.6 times the third power, the third power is 1.4 to 1.5 times the fourth power, and the fourth power is 1.3 to 1.4 times the fifth power.

Through the optimization of the water level and the power of the electric heating device, especially through the setting of the differentiated water level and the power of the electric heating device, the water level can be quickly positioned at a preset safety position, the steam output rate can be ensured when the water level is too high, and the time is saved.

(V) pressure control

Preferably, a pressure sensor is arranged at the upper part of the steam drum 3 and used for measuring the pressure in the steam drum 3. Pressure sensor, electric heater unit and controller 7 data connection, controller 7 is connected cloud end server 8, and cloud end server 8 is connected with customer end 9, and wherein controller 7 gives cloud end server 8 with the data transfer of measuring pressure sensor, electric heater, then sends customer end 9 to through cloud end server 8, customer end 9 is the cell-phone, cell-phone installation APP program, user can select automatic control or manual control's mode at

customer end

9, and 7 control customer's mode of selection of controller come control electric heater's heating power.

Preferably, in the manual control mode of operation, the user manually controls the heating power of the electric heater at the client 9 based on the water level data of the pressure sensor obtained at the client 9.

Preferably, in the automatically controlled mode of operation, the controller 7 automatically controls the heating power of the electric heating device in dependence on the pressure measured by the pressure sensor. Preferably, the controller 7 controls the electric heating device to start heating if the pressure measured by the pressure sensor is lower than a certain pressure. If the temperature measured by the pressure sensor is higher than the upper limit pressure, the controller controls the electric heating device to stop heating in order to avoid danger caused by excessive pressure.

Through so setting up, can come the regulation heating power according to the pressure in the steam pocket 3 to guarantee under the condition of maximize steam output, guarantee steam generator's safety.

Preferably, the controller 7 controls the electric heating device to increase the heating power if the pressure measured by the pressure sensor is lower than a certain value. If the temperature measured by the pressure sensor is higher than a certain value, the controller controls the electric heating device to reduce the heating power in order to avoid the danger caused by the overlarge pressure.

Preferably, when the measured pressure is higher than the first pressure, the controller 7 controls the heating power of the electric heating device to be reduced to the first power for heating; when the measured pressure is higher than a second pressure higher than the first pressure, the controller 7 controls the heating power of the electric heating device to be reduced to a second power lower than the first power for heating; when the measured pressure is higher than a third pressure higher than the second pressure, the controller 7 controls the heating power of the electric heating device to be reduced to a third power lower than the second power for heating; when the measured pressure is higher than a fourth pressure higher than the third pressure, the controller 7 controls the heating power of the electric heating device to be reduced to a fourth power higher than the third power for heating; when the measured pressure is higher than a fifth pressure higher than the fourth pressure, the controller 7 stops the heating of the electric heating device.

Preferably, the fourth power is 0.4 to 0.6 times the third power, the third power is 0.6 to 0.8 times the second power, and the second power is 0.7 to 0.9 times the first power.

Further preferably, the fourth power is 0.5 times the third power, the third power is 0.7 times the second power, and the second power is 0.8 times the first power.

The fifth pressure is the upper limit pressure.

The pressure sensor is arranged at the upper part of the steam drum.

Preferably, the pressure sensor is a plurality of pressure sensors, and the controller controls the operation of the steam generator according to the pressure data which is the temperature measured by the plurality of pressure sensors.

(VI) steam flow control

Preferably, a flow sensor is arranged on the steam outlet pipeline and used for measuring the steam flow produced in unit time, and the flow sensor and the electric heater are in data connection with the controller 7. The controller 7 is connected with the cloud server 8, the cloud server 8 is connected with the client 9, the controller 7 transmits data of the measured flow sensor and the electric heater to the cloud server 8, the data are transmitted to the client 9 through the cloud server 8, the client 9 is a mobile phone, the APP program is installed on the mobile phone, a user can select an automatic control or manual control working mode at the client 9, and the heating power of the electric heater is controlled by the working mode selected by the controller 7 control clients.

Preferably, in the manual control mode of operation, the user manually controls the heating power of the electric heater at the client 9 based on the flow data from the flow sensor obtained at the client 9.

Preferably, in the automatic control mode of operation, the controller 7 automatically controls the heating power of the electric heating device according to the steam flow data produced per unit time measured by the sensor. Preferably, the controller 7 controls the electric heating device to perform heating or increase heating power if the measured steam flow is below a certain value. If the temperature measured by the pressure sensor is higher than a certain value, the controller controls the electric heating device to reduce the heating power or stop heating.

Through so setting up, can adjust heating power according to the steam quantity that steam generator produced, guarantee the invariant of steam output quantity, avoid the quantity too big or undersize, cause steam quantity not enough or extravagant.

Preferably, when the measured flow rate is higher than the first flow rate, the controller 7 controls the heating power of the electric heating device to be reduced to the first power for heating; when the measured flow rate is higher than a second flow rate higher than the first flow rate, the controller 7 controls the heating power of the electric heating device to be reduced to a second power lower than the first power for heating; when the measured flow is higher than a third flow higher than the second flow, the controller 7 controls the heating power of the electric heating device to be reduced to a third power lower than the second power for heating; when the measured flow is higher than a fourth flow higher than the third flow, the controller 7 controls the heating power of the electric heating device to be reduced to a fourth power higher than the third power for heating; when the measured flow rate is higher than the fifth flow rate, which is higher than the fourth flow rate, the controller 7 stops the heating of the electric heating device.

Further preferably, the fifth flow rate is 1.1 to 1.2 times the fourth flow rate, the fourth flow rate is 1.2 to 1.3 times the third flow rate, the third flow rate is 1.3 to 1.4 times the second flow rate, and the second flow rate is 1.4 to 1.5 times the first flow rate.

By optimizing the flow rate and the power of the electric heating device, especially by setting the flow rate and the power of the electric heating device in a differentiated manner, the flow rate can be quickly kept constant, and time can be saved.

Through so setting up, can adjust the electricity heating volume according to the steam quantity that steam generator produced, guarantee the invariant of steam output quantity, avoid the too big or undersize of quantity, cause steam quantity not enough or extravagant, can practice thrift the waste heat energy simultaneously.

The invention can also realize the intelligent control of the steam generator according to the valve.

1. Example one

As a modification, a temperature sensor is provided in the steam drum 3 for measuring the temperature of the steam in the steam drum 3. And a water inlet valve and a steam valve are respectively arranged on the water inlet pipe 4 and the steam outlet 5 of the steam pocket 3, and the temperature sensor, the water inlet valve and the steam valve are in data connection with the central controller 7. Controller 7 connects high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transfer of measuring temperature sensor, water inlet valve and steam valve, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP program, the user can select automatic control or manual control's mode at customer end 9, and the aperture of water inlet valve and steam valve is controlled to 7 control customer selection's mode of controller.

Preferably, in the manual control operation mode, the user manually controls the opening degree of the water inlet valve and the steam valve at the client 9 according to the temperature data measured by the temperature sensor obtained by the client 9.

Preferably, in the automatic control operation mode, the central controller 7 controls the opening and closing of the water inlet valve and the steam valve and the size of the opening degree according to the temperature measured by the temperature sensor.

If the temperature sensor measures that the temperature of the steam in the steam drum 3 is lower than the lower limit value, the central controller 7 controls the water inlet valve and the steam valve to be automatically closed, so that the steam in the steam drum 3 is ensured to be continuously heated and heated; if the measured temperature of the steam in the steam drum 3 exceeds the upper limit value, the central controller 7 controls the water inlet valve and the steam valve to be automatically opened. Through the measures, the temperature of the steam output by the steam drum 3 can be ensured to be kept at a certain temperature, so that the temperature can be utilized.

Preferably, a plurality of temperature sensors are arranged in the steam drum 3, and the temperature of the steam is measured by the plurality of temperature sensors.

Preferably, the central controller 7 controls the opening and closing of the water inlet valve and the steam valve by an average value of the temperatures of the steam measured by the plurality of temperature sensors.

Preferably, the central controller 7 controls the opening and closing of the water inlet valve and the steam valve by the highest value of the temperature of the steam measured by the plurality of temperature sensors. By taking the highest value, it is possible to avoid the risk of the steam in the steam drum 3 being at too high a temperature.

Preferably, the at least one temperature sensor is arranged in the steam drum 3 close to the steam outlet.

2. Example two

As a modification, the central controller 7 controls the opening of the water inlet valve and the steam valve to ensure that the temperature of the steam outlet in the steam drum reaches a constant value. I.e. the temperature of the steam at the steam outlet of the steam drum 3 is adjusted by adjusting the so-called flow rates into the steam drum 3 and out of the steam drum 3.

An outlet pipe temperature sensor is arranged on the steam drum steam outlet 5, the outlet pipe temperature sensor is in data connection with the central controller 7, and the outlet pipe temperature sensor, the water inlet valve and the steam valve are in data connection with the central controller 7. Controller 7 connects high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transfer of measuring temperature sensor, water inlet valve and steam valve, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP program, the user can select automatic control or manual control's mode at customer end 9, and the aperture of water inlet valve and steam valve is controlled to 7 control customer selection's mode of controller.

Preferably, in the manual control mode of operation, the user manually controls the opening of the water inlet valve and the steam valve at the client 9 according to the temperature data measured by the outlet pipe temperature sensor obtained by the client 9.

Preferably, in the automatic control operation mode, the central controller 7 controls the opening and closing of the water inlet valve and the steam valve and the size of the opening degree according to the temperature measured by the outlet pipe temperature sensor.

If the temperature of the steam in the outlet pipe, as measured by the temperature sensor, is below the lower limit value, the central controller 7 controls the opening of the steam valve to increase, decreasing the opening of the water inlet pipe valve, thereby causing the water entering the drum 3 to decrease, causing the steam exiting the drum 3 to increase, thereby causing the amount of water in the drum 3 to decrease. The temperature of the steam in the steam drum 3 is increased by the reduction of the amount of water, thereby increasing the outlet temperature of the steam drum 3. Conversely, if the temperature of the outlet pipe water measured by the temperature sensor is higher than the upper limit value, the central controller 7 controls the opening of the valve 20 to decrease, increasing the opening of the inlet pipe valve, thereby causing the water entering the steam drum 3 to increase, causing the steam leaving the steam drum 3 to decrease, thereby causing the amount of water in the steam drum 3 to increase. The temperature of the water in the drum 3 is reduced by the increase of the amount of water, thereby reducing the outlet temperature of the drum 3. By the measures, the temperature of the steam output by the steam drum 3 can be ensured to be kept in a certain range, so that the usable temperature can be reached.

Preferably, the steam outlet 5 is provided with a plurality of temperature sensors, and the temperature of the water in the steam drum water outlet pipe is measured through the plurality of temperature sensors.

Preferably, the central controller 7 controls the opening degree of the steam valve and the water inlet pipe valve by an average value of the temperatures of the water measured by the plurality of temperature sensors 19.

Preferably, the central controller 7 controls the opening degree of the steam valve and the water inlet pipe valve by the highest value of the water temperature measured by the plurality of temperature sensors 19. By adopting the highest value, the safety of the steam drum can be ensured.

Preferably, the at least one temperature sensor is arranged at a position of the steam outlet 5 close to the steam drum 3.

Preferably, the upper value minus the lower value is in the range of 5 to 10 degrees Celsius, preferably 6 to 8 degrees Celsius.

3. EXAMPLE III

As a further improvement of the second embodiment, the opening and closing of the steam valve and the water inlet pipe valve are controlled by measuring the temperature of the water in the steam drum 3.

Controller 7 connects high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transfer of measuring temperature sensor, water inlet valve and steam valve, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP program, the user can select automatic control or manual control's mode at customer end 9, and the aperture of water inlet valve and steam valve is controlled to 7 control customer selection's mode of controller.

Preferably, in the manual control operation mode, the user manually controls the opening degree of the water inlet valve and the steam valve at the client 9 according to the temperature data of the water measured by the temperature sensor in the steam drum obtained by the client 9.

Preferably, in the automatic control operation mode, if the temperature of the water in the drum 3 measured by the temperature sensor is lower than the lower limit value, the central controller 7 controls the opening degree of the steam valve to be increased and the opening degree of the water inlet pipe valve to be decreased, so that the water entering the drum 3 is decreased and the steam leaving the drum 3 is increased, so that the amount of water in the drum 3 is decreased. The temperature of the water in the drum 3 is increased by the reduction of the amount of water, thereby increasing the outlet temperature of the drum 3. Conversely, if the temperature of the water in the drum 3 measured by the temperature sensor is higher than the upper limit value, the central controller 7 controls the opening of the steam valve to decrease, increasing the opening of the water inlet pipe valve, so that the water entering the drum 3 increases, the steam leaving the drum 3 decreases, and the amount of water in the drum 3 increases. The temperature of the water in the drum 3 is reduced by the increase of the amount of water, thereby reducing the outlet temperature of the drum 3. By the above measures, it can be ensured that the temperature of the water in the steam drum 3 is kept within a certain range, thereby ensuring that the steam can reach a usable temperature.

Preferably, a plurality of temperature sensors are arranged in the steam drum 3, and the temperature of the water is measured by the plurality of temperature sensors.

Preferably, the central controller 7 controls the opening degree of the steam valve and the water inlet pipe valve by an average value of the temperatures of the water measured by the plurality of temperature sensors.

Preferably, the central controller 7 controls the opening degree of the steam valve and the water inlet pipe valve by the lowest value of the water temperature measured by the plurality of temperature sensors. By taking the lowest value, it can be ensured that the temperature of the water in all positions in the steam drum 3 can reach a temperature that is available.

Preferably, the upper value minus the lower value is 8 to 13 degrees Celsius, preferably 9 to 11 degrees Celsius.

Preferably, the temperature sensor is arranged at the bottom of the steam drum.

4. Example four

As an improvement, a water level meter is arranged in the steam drum 3, and the water level meter is in data connection with the central controller 7. The outlet pipe water level gauge, the water inlet valve and the steam valve are in data connection with the central controller 7. Controller 7 connects high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transfer of measuring fluviograph, water inlet valve and steam valve, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP procedure, the user can select automatic control or manual control's mode at customer end 9, and the aperture of water inlet valve and steam valve is controlled to the mode that 7 control customers chose to the controller.

Preferably, in the manual control operation mode, the user manually controls the opening degree of the water inlet valve and the steam valve at the client 9 according to the water level data measured by the water level gauge obtained by the client 9.

Preferably, in the automatic control operation mode, the central controller monitors the height of the water level so as to control the opening degree of the steam valve and the water inlet pipe valve.

Through the height of control water level, avoid the water level in the steam pocket to hang down excessively to cause the heat release end of heat pipe 3 to lose heat, cause the heat pipe harm, avoid the water level in the steam pocket 3 too high simultaneously, thereby cause the steam pocket internal pressure too big, especially under the condition of heating boiling.

If the water level of the drum 3 measured by the water level gauge is higher than the upper limit value, the central controller 7 controls the opening of the steam valve to increase, decreasing the opening of the water inlet pipe valve, so that the water entering the drum 3 decreases, so that the steam leaving the drum 3 increases, and so that the amount of water in the drum 3 decreases. The level of water in the drum 3 is lowered by the reduction of the amount of water. Conversely, if the water level in the drum 3 measured by the water level gauge is lower than the lower limit value, the central controller 7 controls the opening of the steam valve to decrease, increasing the opening of the water inlet pipe valve, so that the water entering the drum 3 increases, so that the steam leaving the drum 3 decreases, and so that the amount of water in the drum 3 increases.

Preferably, the upper limit value of the water level is the height at which 40-45%, preferably 43%, of the drum volume is located.

Preferably, the lower limit value of the water level is the height of the heat release end 10 of the heat collecting pipe 1 extending into the steam drum. Thereby ensuring that the water in the steam pocket covers the heat release end completely.

5. EXAMPLE five

The fifth embodiment is an improvement of the combination of the first embodiment and the fourth embodiment.

And the temperature sensor in the steam drum, the water level gauge in the steam drum, the water inlet valve and the steam valve are in data connection with the central controller 7. Controller 7 connects high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transfer of measuring temperature sensor, fluviograph, inlet valve and steam valve, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP procedure, the user can select automatic control or manual control's mode at

customer end

9, and 7 control customers's the mode of selecting come the aperture of controlling inlet valve and steam valve.

Preferably, in the manual control operation mode, the user manually controls the opening degree of the water inlet valve and the steam valve at the client 9 according to the data measured by the temperature sensor and the water level meter at the client 9.

Preferably, in the automatic control operation mode, if the temperature sensor measures that the temperature of the water in the steam drum 3 is lower than the lower limit value, the central controller 7 automatically controls the opening and closing of the steam valve and the water inlet pipe valve according to the water level measured by the monitored water level meter, and the specific measures are as follows:

the water level measured by the water level meter monitored by the central controller 7 is higher than the lower limit value and lower than the upper limit value, the central controller 7 controls the steam inlet valve and the water inlet pipe valve to be automatically closed, and therefore the water in the steam drum 3 is ensured to be continuously heated and heated;

when the water level measured by the water level meter monitored by the central controller 7 is lower than the lower limit value, the central controller 7 controls the steam valve to be automatically closed, the water inlet pipe valve is continuously opened, so that the water is ensured to continuously flow into the steam drum 3, and when the water level measured by the water level meter monitored by the central controller 7 is equal to or higher than the lower limit value, the central controller 7 controls the water inlet pipe valve to be automatically closed;

when the water level measured by the water level gauge monitored by the central controller 7 is higher than the upper limit value, the central controller 7 controls the steam valve to be continuously opened, the water inlet pipe valve is automatically closed, so that water is ensured to continuously flow out of the steam drum 3, and when the water level measured by the water level gauge monitored by the central controller 7 is equal to or lower than the upper limit value, the central controller 7 controls the steam valve to be automatically closed.

The remaining features are the same as those of the first and fifth embodiments, and are not described one by one.

6. EXAMPLE six

The sixth embodiment is an improvement of the combination of the second embodiment and the fourth embodiment.

And the outlet pipe temperature sensor, the water level meter, the water inlet valve and the steam valve are in data connection with the central controller 7. Controller 7 connects high in the clouds server 8, and high in the clouds server 8 is connected with customer end 9, and wherein controller 7 gives high in the clouds server 8 with the data transfer of measuring temperature sensor, fluviograph, inlet valve and steam valve, then sends customer end 9 to through high in the clouds server 8, customer end 9 is the cell-phone, cell-phone installation APP procedure, the user can select automatic control or manual control's mode at

customer end

Preferably, in the manual control mode, the user manually controls the opening degree of the water inlet valve and the steam valve at the client 9 according to the temperature data measured by the outlet pipe temperature sensor and the water level data of the water level gauge obtained by the client 9.

Preferably, in the automatic control operation mode, if the temperature of the water in the outlet pipe measured by the temperature sensor is lower than the lower limit value, the central controller 7 automatically controls the opening degree of the steam valve and the water inlet pipe valve according to the water level measured by the monitored water level meter, and the specific measures are as follows:

if the water level measured by the water level gauge monitored by the central controller 7 is lower than the upper limit value, the central controller 7 controls the opening of the steam valve to increase and the opening of the water inlet pipe valve to decrease so that the water entering the steam drum 3 decreases and the water leaving the steam drum 3 increases so that the water amount in the steam drum 3 decreases, and if the water level in the steam drum 3 decreases to the lower limit value or approaches to the lower limit value, the central controller controls the steam valve and the water inlet pipe valve to close;

if the water level measured by the water level meter monitored by the central controller 7 is lower than the lower limit value, the central controller 7 controls the steam valve to close and simultaneously gives an alarm; this time indicates that the desired water temperature is not currently being achieved, perhaps due to insufficient light intensity or other reasons, to alert the operator.

If the temperature of the water in the outlet pipe measured by the temperature sensor is higher than the upper limit value, the central controller 7 automatically controls the opening degree of the steam valve and the water inlet pipe valve according to the water level measured by the monitored water level meter, and the specific measures are as follows:

when the water level measured by the water level meter monitored by the central controller 7 is lower than the upper limit value, the central controller 7 controls the opening of the steam valve to be reduced, and increases the opening of the water inlet pipe valve, so that the water entering the steam drum 3 is increased, the water leaving the steam drum 3 is reduced, and the water amount in the steam drum 3 is increased; if the water level in the steam drum 3 is increased to the upper limit value or is close to the upper limit value, the central controller controls the steam valve and the water inlet pipe valve to be closed;

the water level measured by the water level meter monitored by the central controller 7 is higher than the upper limit value, and the central controller 7 controls the water inlet pipe valve to close and simultaneously gives an alarm; this time indicates that the desired water temperature is not currently being achieved, perhaps because the set water temperature is too low or for other reasons to alert the operator.

The remaining features are the same as those of the first and fifth embodiments, and are not described one by one. Although the present invention has been described with reference to the preferred embodiments, it is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A solar steam generator comprises a reflector and a steam drum, wherein the steam drum is positioned at the focus position of the reflector, the reflector reflects solar energy to the steam drum for heating water in the steam drum, the steam drum comprises a water inlet and a steam outlet, the water inlet is provided with a water pump, an electric heater for supplementing heating is arranged in the steam drum, a plurality of heat pipes extending upwards from the bottom of the steam drum are arranged in the steam drum, and the bottoms of the lower ends of the heat pipes are connected to the inner wall of the steam drum; the steam pocket is internally provided with a water level sensor, the water level sensor and the water pump are in data connection with a controller, the controller is connected with a cloud server, the cloud server is connected with a client, the controller transmits measured data of the water level sensor and the water pump to the cloud server, and then the measured data are transmitted to the client through the cloud server, the client is a mobile phone, the mobile phone is provided with an APP program, a user can select an automatic control working mode or a manual control working mode at the client, and the controller controls the working mode selected by the user to control the power of the water pump; the heat pipes are annularly distributed in multiple layers around the bottom center point of the steam drum; arranging a plurality of layers of heat pipes along the bottom center point of the steam pocket, wherein the distances between the axis of each layer of heat pipe and the center point are the same, so that an arc structure taking the bottom center point of the steam pocket as the center of a circle is formed; the heat pipes are multiple, and the distribution density of the heat pipes is smaller and smaller along the outward radial direction of the center of the bottom of the steam drum; the distribution density of the heat pipes is continuously increased in a smaller and smaller range along the radial direction from the center of the bottom of the steam drum to the outside.

2. The solar steam generator of claim 1, wherein in the manual control mode of operation, a user manually controls the power of the water pump at the client based on the water level data from the water level sensor and the power data from the water pump obtained at the client.

3. The solar steam generator of claim 1, wherein in the automatic control mode of operation, the controller automatically controls the power of the water pump based on the measured water level in the steam drum, and if the water level drops, the controller increases the flow of water into the steam drum by controlling the power of the water pump to increase, and if the water level is too high, decreases the flow of water into the steam drum or stops supplying water into the steam drum by reducing the power of the water pump or turning off the water pump.

4. The solar steam generator of claim 3, wherein the controller controls the water pump to supply water at the first power when the measured water level is lower than the first water level; when the measured water level is lower than a second water level lower than the first water level, the controller controls the water pump to supply water at a second power higher than the first power; when the measured water level is lower than a third water level lower than the second water level, the controller controls the water pump to supply water at a third power higher than the second power; when the measured water level is lower than a fourth water level lower than the third water level, the controller controls the water pump to supply water at a fourth power higher than the third power; when the measured water level is lower than a fifth water level lower than the fourth water level, the controller controls the water pump to supply water at a fifth power higher than the fourth power.

5. The steam generator of claim 1, wherein a communication pipe is disposed between at least two adjacent heat pipes.

6. The steam generator of claim 1, wherein the steam drum and the heat pipe are integrally manufactured.