CN106402825A - Steam generator capable of achieving intelligent temperature control through mobile phone APP - Google Patents

Abstract

The invention provides a steam generator, comprising a furnace body, a water tank, and a water pump, the water tank is connected to the water pump through a first pipeline, the water pump is connected to the furnace body through a second pipeline, and an electric heating device is arranged in the furnace body, The upper part of the furnace body is provided with a steam outlet pipeline, and the water tank is provided with an inlet pipeline; a temperature sensor is provided in the furnace body for measuring the temperature of the water in the furnace body. The temperature sensor, the electric heating device are connected to the data of the controller, the controller is connected to the cloud server, and the cloud server is connected to the client, wherein the controller transmits the measured water temperature to the cloud server, and then transmits it to the client through the cloud server , the client is a mobile phone, the mobile phone is installed with an APP program, and the user obtains temperature data through the client to control the heating power of the electric heating device. The invention monitors the operation of the steam generator through the mobile phone APP, realizes the remote monitoring temperature detection, and realizes the intelligent control of the water temperature in the steam generator.

Description

A mobile APP intelligent temperature control steam generator

technical field

The invention relates to the technical field of boilers, in particular to a steam generator intelligently controlled by a mobile APP.

Background technique

A steam generator is a mechanical device that uses heat from fuel or other energy sources to heat water into steam. The steam generator has a wide range of applications, and is widely used in clothing factories, dry cleaners, restaurants, steamed bun shops, canteens, restaurants, factories and mines, bean products factories and other places. The current steam generator is mostly heated by gas or fuel oil, and the heating efficiency is low, the degree of intelligence is not high, and it cannot be controlled remotely. Therefore, it is necessary to design a smart control through mobile phone APP.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides an intelligently controlled steam generator, and at the same time provides an electric heating steam generator with a new structure, and the steam generator has the characteristics of rapid heating, uniform temperature distribution, automatic power Controlled, safe and reliable functions improve heating efficiency.

To achieve the above object, the present invention adopts the following technical solutions:

A steam generator, comprising a furnace body, a water tank, and a water pump, the water tank is connected to the water pump through a first pipeline, the water pump is connected to the furnace body through a second pipeline, an electric heating device is arranged in the furnace body, and the furnace body The upper part is provided with a steam outlet pipeline, and the water tank is provided with an inlet pipeline; it is characterized in that a temperature sensor is provided in the furnace body to measure the temperature of the water in the furnace body; the temperature sensor, the electric heating device and the controller data connection, the controller is connected to the cloud server, and the cloud server is connected to the client, wherein the controller transmits the measured water temperature to the cloud server, and then transmits it to the client through the cloud server, the client is a mobile phone, and the mobile phone is installed APP program, the user can choose the working mode of automatic control or manual control on the client side, and the controller controls the operation of the electric heating device based on the working mode selected by the customer.

Preferably, in the manual control mode, the user obtains the temperature data from the client, manually inputs the heating power on the client, and then transmits it to the controller through the cloud server, and the controller controls the electric heating device to heat according to the heating power input by the client.

Preferably, in the working mode of automatic control, the controller automatically controls the heating power of the electric heating device according to the temperature measured by the temperature sensor, and transmits the heating power and temperature data to the client, 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, if the temperature data measured by the temperature sensor is lower than the first value, the controller automatically increases the heating power of the electric heating device, and if the temperature data measured by the temperature sensor is higher than the second value, the controller automatically reduces the heating power of the electric heating device. The heating power, the second value is greater than the first value.

Preferably, when the measured temperature is lower than the first temperature, the electric heating device starts heating, and heats with the first power; when the measured temperature is lower than the second temperature lower than the first temperature, the electric heating device Heating at the second power of the first power; when the measured temperature is lower than the third temperature lower than the second temperature, the electric heating device is heated with the third power higher than the second power; when the measured temperature is lower than When the fourth temperature is lower than the third temperature, the electric heating device heats with the fourth power higher than the third power; when the measured temperature is lower than the fifth temperature lower than the fourth temperature, the electric heating device heats with the fourth power higher than The fifth power of the fourth power is used for heating.

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

Preferably, the first temperature is 5.5-6 degrees Celsius higher than the second temperature, the second temperature is 5-5.5 degrees Celsius higher than the third temperature, the third temperature is 4.5-5 degrees Celsius higher than the fourth temperature, and the fourth temperature is 4-4.5 degrees Celsius higher than the fifth temperature. .

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

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

Preferably, the electric heating device includes a left tube box, a right tube box and a floating coil, the floating coil is connected with the left tube box and the right tube box to form a closed circulation of heating fluid, and the electric heating rod is arranged between the left tube box and the right tube box. The right tube box; the left tube box, the right tube box and the floating coil are filled with heating fluid; there are one or more floating coils, each floating coil includes multiple arc-shaped tube bundles, and multiple arc-shaped tube bundles The center line of the center line is an arc of concentric circles, and the ends of adjacent tube bundles are connected, so that the ends of the tube bundles form a free end of the tube bundle; the concentric circle is a circle centered on the center of the left tube box, and the inner diameter of the left tube box R1, the inner diameter of the right tube box is R2, the power of the electric heating rod of the left tube box is P1, and the power of the electric heating rod of the right tube box is P2, satisfying the following relationship:

P1/P2=a*(R1/R2) ² -b*(R1/R2)+c;

a, b, c are coefficients, among which 0.82<a<0.91, 1.95<b<2.05, 2.67<c<2.77;

Among them, 58mm<R1<87mm;

29mm<R2<68mm;

1.2<R1/R2<2.1;

1600W<P1<2500W;

670W<P2<1680W.

Preferably, as R1/R2 increases, a and c increase, and b decreases.

The present invention has the following advantages:

1. The present invention realizes the intelligent control of the steam generator through the mobile phone APP client and temperature detection, saves energy, improves safety, improves the intelligence of the steam generator, and realizes remote control.

2. In the present invention, the floating coil is applied to the heating of the steam generator. By setting the floating coil, the volume of the heating fluid will expand after being heated, and the free ends BC and B'C' of the floating coil will be induced to vibrate, thereby enhancing the heat transfer .

3. The present invention optimizes the best relationship of the parameters of the floating coil through a large number of tests, thereby further improving the heating efficiency.

4. In the present invention, by setting the electric heater in the pipe box, it can directly prevent the contact between the fluid and the electric heater, thereby avoiding electric shock and playing a protective role.

5. The present invention improves the heating efficiency and heating uniformity by setting the electric heater power of different tube boxes.

Description of drawings:

Fig. 1 is a structural schematic diagram of the steam generator of the present invention.

Fig. 2 is a schematic diagram of the control structure of the steam generator in Fig. 1 .

Fig. 3 is an A-A sectional view in Fig. 1 .

Fig. 4 is a cross-sectional view of the electric heating device in Fig. 1 .

Fig. 5 is a sectional view taken along line A-A in Fig. 4 .

FIG. 6 is a schematic diagram of the dimensions of the structure in FIG. 5 .

Fig. 7 is a schematic flow chart of manual control of the steam generator.

Fig. 8 is a schematic flow chart of automatic control of the steam generator.

In the figure: 1. furnace body, 2. water tank, 3. water tank inlet pipeline, 4. water pump, 5. nozzle, 6. electric heating device, 7. steam outlet pipeline, 8. controller, 9. flow sensor, 10. valve, 11. water level sensor, 12 temperature sensor, 13 nozzle, 14 nozzle inlet pipeline, 15 pipeline, 16 outer casing, 17 pressure sensor, 18 floating coil, 19 left tube box, 20 free end, 21 right tube box, 22 tube bundle, 23 electric Heater, 231 the first electric heating rod, 232 the second electric heating rod, 24 cloud server, 25 clients

detailed description

A kind of steam generator as shown in Figure 1, comprises body of heater 1, water tank 2, water pump 4, and described water tank 2 is connected water pump 4 through pipeline 15, and described water pump 4 is connected body of heater 1 through pipeline 14, and described An electric heating device 6 is arranged in the furnace body 1 , a steam outlet pipeline 7 is arranged on the upper part of the furnace body 1 , and an inlet pipeline 3 is arranged in the water tank 2 .

The water enters the furnace body 1 from the water tank 3 through the water pump 4 , is heated in the furnace body 1 by the electric heating device 6 , and the generated steam is discharged through the steam outlet pipeline 7 .

Preferably, the steam discharged from the steam outlet pipeline 7 enters the water tank 2 through the inlet pipeline 3 after utilization, so as to achieve the purpose of recycling.

Preferably, the inlet pipeline 3 is connected to a water pipe, through which water is replenished. Preferably, a purification device is provided between the water pipe and the water tank 2 to purify the tap water, avoiding scaling of the electric heating device in the water tank and affecting the heating effect.

Preferably, the cross section of the furnace body 1 is a circular structure.

As a preference, an outer casing 16 is arranged outside the furnace body 1 , and the water tank 4 and the water pump 2 are arranged inside the outer casing 16 .

Preferably, there are multiple electric heating devices 6 . The electric heating device 6 is arranged close to the vertical inner wall surface of the furnace body 1, as shown in FIG. 1 .

Preferably, a spray pipe 5 is provided on the wall of the furnace body 1, and a spray hole 13 is provided on the spray pipe 5. The pipeline 14 is connected to the nozzle pipe 5, and the water is sent into the nozzle pipe 5 by a water pump, and then sprayed out through the nozzle hole 13.

By arranging the nozzle pipe and the nozzle hole, the water can be more evenly distributed into the motor heater, which further promotes the generation of steam.

Preferably, as shown in FIG. 3 , the nozzle pipe 5 is arranged in a complete circle around the vertical inner wall of the furnace body. By setting in this way, the nozzles 5 on the entire inner wall can be communicated, so that after water enters the nozzles 5, water can be sprayed out at a complete circle of the inner wall of the furnace, thereby increasing the steam output rate.

Preferably, a temperature sensor 12 is provided in the furnace body 1 for measuring the temperature of water in the furnace body 1 .

Preferably, a water level sensor 11 is arranged in the furnace body 1 for measuring the water level in the furnace body.

Preferably, a pressure sensor 17 is arranged in the furnace body 1 for measuring the pressure in the furnace body 1 .

Preferably, a flow sensor 9 is provided on the steam outlet pipeline 7 for measuring the steam flow produced per unit time.

As preferably, the temperature sensor 12, the water level sensor 11, the pressure sensor 17, the flow sensor 9, the electric heating device 6 are connected to the controller 8 for data connection, the controller 8 is connected to the cloud server 24, and the cloud server 24 is connected to the client 25 , wherein the controller 8 transmits the measured water temperature to the cloud server 24, and then transmits it to the client 25 through the cloud server 24. The client 25 is a mobile phone, and the mobile phone is installed with an APP program. Users can view relevant data in real time on the client side.

One object of the invention is to achieve temperature control.

Preferably, a temperature sensor 12 is provided in the furnace body 1 for measuring the temperature of water in the furnace body 1 . The temperature sensor 12, the electric heating device 6 are connected to the data of the controller 8, the controller 8 is connected to the cloud server 24, and the cloud server 24 is connected to the client 25, wherein the controller 8 transmits the measured water temperature to the cloud server 24 , and then send it to the client 25 through the cloud server 24, the client 25 is a mobile phone, the mobile phone is installed with an APP program, the user can select the working mode of automatic control or manual control on the client 25, and the controller 8 controls the customer's selection To control the heating power of the electric heating device 6 according to the working mode.

By setting the manual or automatic control mode, a multi-method control method can be provided for the user, which improves the intelligence of the system.

Preferably, in the manual control mode, the user obtains the temperature data according to the client 25, manually inputs the heating power at the client 25, and then transmits it to the controller 8 through the cloud server 24, and the controller 8 controls the electric heating device 6 according to the user's temperature data. Terminal 25 input heating power heating.

As preferably, under the working mode of automatic control, the controller 8 automatically controls the heating power of the electric heating device 6 according to the temperature measured by the temperature sensor 12, and transmits the heating power and temperature data to the client 25, if the temperature sensor If the measured temperature is lower than a certain temperature, the controller 8 controls the electric heating device 6 to start heating; if the temperature measured by the temperature sensor 12 is higher than a certain temperature, the controller 8 controls the electric heating device 6 to stop heating.

The controller 8 automatically controls the heating power of the electric heating device 6 according to the temperature measured by the temperature sensor 12 .

Preferably, if the temperature measured by the temperature sensor 12 is lower than a certain temperature, the controller controls the electric heating device 6 to start heating. If the temperature measured by the temperature sensor is higher than a certain temperature, for example higher than a dangerous critical temperature, in order to avoid overheating, the controller controls the electric heating device 6 to stop heating.

As preferably, if the detected temperature data is lower than the first value, the controller 8 automatically increases the heating power of the electric heating device 6, and if the measured temperature data is higher than the second value, the controller 8 automatically reduces the heating power of the electric heating device 6. power, the second value is greater than the first value.

As preferably, when the measured temperature is lower than the first temperature, the electric heating device 6 starts heating, and heats with the first power; when the measured temperature is lower than the second temperature lower than the first temperature, the electric heating device 6 Heating with the second power higher than the first power; when the measured temperature is lower than the third temperature lower than the second temperature, the electric heating device 6 is heated with the third power higher than the second power; when the measured When the temperature is lower than the fourth temperature lower than the third temperature, the electric heating device 6 heats with the fourth power higher than the third power; when the measured temperature is lower than the fifth temperature lower than the fourth temperature, the electric heating The device 6 heats with a fifth power, which is higher than the fourth power.

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

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

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

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

By optimizing the above temperature and power, especially by setting differentiated heating power and temperature difference, the heating efficiency can be further improved and time can be saved. It is found through experiments that the heating efficiency can be increased by about 10-15%.

Preferably, the temperature sensor 12 is arranged on the bottom wall of the furnace body.

Preferably, there are multiple temperature sensors 12, and the temperature data of the controller is the temperature measured by the multiple temperature sensors 12 to control the operation of the steam generator.

Another object of the invention is to achieve pressure control.

Preferably, a pressure sensor 17 is arranged in the furnace body 1 for measuring the pressure in the furnace body 1 . The pressure sensor 17, the electric heating device 6 are connected to the data of the controller 8, the controller 8 is connected to the cloud server 24, and the cloud server 24 is connected to the client 25, wherein the controller 8 transmits the measured pressure data to the cloud server 24 , and then send it to the client 25 through the cloud server 24, the client 25 is a mobile phone, the mobile phone is installed with an APP program, the user can select the working mode of automatic control or manual control on the client 25, and the controller 8 controls the customer's selection To control the heating power of the electric heating device 6 according to the working mode.

By setting the manual or automatic control mode, a multi-method control method can be provided for the user, which improves the intelligence of the system.

Preferably, in the manual control mode, the user obtains the pressure data according to the client 25, manually inputs the heating power at the client 25, and then transmits it to the controller 8 through the cloud server 24, and the controller 8 controls the electric heating device 6 according to the user's Terminal 25 input heating power heating.

Preferably, in the automatic control working mode, the controller 8 automatically controls the heating power of the electric heating device 6 according to the pressure measured by the pressure sensor. And transmit the heating power and pressure data of the electric heater 6 to the client 25.

Preferably, if the pressure measured by the pressure sensor 17 is lower than a certain pressure, the controller 8 controls the electric heating device 6 to start heating. If the temperature measured by the pressure sensor is higher than the upper limit pressure, then in order to avoid danger caused by excessive pressure, the controller controls the electric heating device 6 to stop heating.

By setting in this way, the heating power can be adjusted according to the pressure in the furnace body 1, so as to ensure the safety of the steam generator under the condition of maximizing steam output.

Preferably, if the pressure measured by the pressure sensor 17 is lower than a certain value, the controller 8 controls the electric heating device 6 to increase the heating power. If the temperature measured by the pressure sensor is higher than a certain value, in order to avoid the danger caused by excessive pressure, the controller controls the electric heating device 6 to reduce the heating power.

As preferably, when the measured pressure is higher than the first pressure, the controller 8 controls the heating power of the electric heating device 6 to reduce to the first power for heating; when the measured pressure is higher than the second pressure higher than the first pressure, The controller 8 controls the heating power of the electric heating device 6 to reduce to a second power lower than the first power for heating; when the measured pressure is higher than the third pressure higher than the second pressure, the controller 8 controls the electric heating device 6 The heating power is reduced to the third power lower than the second power for heating; when the measured pressure is higher than the fourth pressure higher than the third pressure, the controller 8 controls the heating power of the electric heating device 6 to reduce to the third power lower than the third pressure. The fourth power with higher power is used for heating; when the measured pressure is higher than the fifth pressure higher than the fourth pressure, the controller 8 stops the heating of the electric heating device 6 .

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

Further preferably, 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 17 is arranged at the upper position of the furnace body.

Preferably, there are multiple pressure sensors 17, and the pressure data of the controller is the temperature measured by the multiple pressure sensors 17 to control the operation of the steam generator.

Another object of the present invention is to provide a novel electric heating device, especially an electric heating device suitable for steam generators.

Fig. 4 has shown the cross-section schematic diagram of electric heating device 6, and described electric heating device 6 comprises left tube box 19, right tube box 21 and floating coil 18, and floating coil 18 communicates with left tube box 19 and right tube box 21 , the heating fluid is closed and circulated in the left pipe box 19, the right pipe box 21 and the floating coil, and the electric heater 23 is arranged in the electric heating device 6, and the electric heater 23 is used to heat the inner fluid of the electric heating device 6 , and then heat the water in the tank through the heated fluid.

Preferably, the electric heating device 6 is arranged in the left tube box 19 or the right tube box 21 .

The floating coils 18 are one or more groups, each group of floating coils 18 includes a plurality of arc-shaped tube bundles 22, the centerlines of the multiple arc-shaped tube bundles 22 are arcs of concentric circles, and the adjacent tube bundles 22 The ends are communicated, so that the ends of the coiled pipes 18 form a free end 20 of the tube bundle, such as the free end 20 in FIG. 5 .

Preferably, the electric heating device is evacuated and then filled with heating fluid.

Preferably, the heating fluid is ammonia, methanol or ethanol.

Preferably, the heating fluid is one of cesium and rubidium.

Traditional floating coils use the impact of fluid flow to vibrate and descale to enhance heat transfer. They are all used for forced convection heat transfer. However, the water in the steam generator has poor fluidity and cannot perform forced convection heat transfer. However, the present invention applies the floating coil to the steam generator for the first time. By setting the floating coil, the volume of the heating fluid will expand after being heated, and the free end 20 of the floating coil 18 will be induced to vibrate. The water has a turbulence effect, which has the effect of enhancing heat transfer.

In the present invention, because the electric heater 23 is arranged in the pipe box 19, 21, it can directly avoid the contact of the fluid with the electric heater, thereby avoiding electric shock and playing a protective role.

As a preference, the left tube box 19, the right tube box 21 and the floating coil tube 18 are all circular tube structures.

Preferably, the tube bundles of the floating coils 18 are elastic tube bundles.

By setting the tube bundles of the floating coils 18 as elastic tube bundles, the heat transfer coefficient can be further improved.

Preferably, the concentric circles are circles centered on the center of the left pipe box 19 . That is, the tube bundle 22 of the floating coil 18 is arranged around the center line of the left tube box 19 .

As shown in Fig. 5, the tube bundle 22 is not a complete circle, but leaves a mouth, thereby forming the free end of the tube bundle. The angle of the arc of the mouth is 65-85 degrees, that is, the sum of angles b and c in Fig. 6 is 65-85 degrees.

Preferably, the pipe diameter of the left pipe box 19 is larger than the pipe diameter of the right pipe box 21 .

Through the above setting, the heat transfer can be further enhanced and the heat exchange efficiency can be increased by 8-15%.

Preferably, the inner diameter of the left tube box is R1, and the inner diameter of the right tube box is R2, so 1.5<R1/R2<2.5.

Through the above-mentioned preferred settings, the heat exchange efficiency can be optimized.

Preferably, the distance between adjacent tube bundles increases as the distance from the center of the left tube box 19 increases.

Preferably, the distance between adjacent tube bundles increases continuously with increasing amplitude.

Through the above preferred settings, the heat exchange efficiency can be further improved, and the heating uniformity can be increased. It is found through experiments that the heat exchange efficiency can be increased by 10-11% through the above settings.

Preferably, the diameter of the tube bundle becomes larger as the distance from the center of the left tube box 19 increases.

Preferably, the diameter of the tube bundle increases continuously with larger and larger amplitudes.

Through the above preferred settings, the heat exchange efficiency can be further improved, and the heating uniformity can be increased. It is found through experiments that the heat exchange efficiency can be increased by about 10% through the above setting.

As preferably, as shown in Figure 4, the electric heater 23 is respectively arranged in the left tube box 19 and the right tube box 21, that is, the first electric heater 231 is arranged in the left tube box 19, and the second electric heater 232 is arranged in the right tube box 19. Inside the pipe box 21.

Preferably, the lengths of the left tube box 19 and the right tube box 21 are the same.

The pipe diameter of the preferred left pipe box is greater than the pipe diameter of the right pipe box.

Preferably, as shown in FIG. 4 , when the steam generator is running, the heating power of the first electric heater 231 is greater than the heating power of the second electric heater 232 . Through the above arrangement, it is found through experiments that the heating of the hot water in the water tank can be made more uniform.

Preferably, the heating power of the first electric heater 231 is 1.3-1.8 times, preferably 1.4-1.65 times, that of the second electric heater 232 .

Numerical simulations and corresponding experiments have found that the sizes of the left tube box 19 and the right tube box 21 and the proportional relationship between the first heater 231 and the second heater 232 can affect the heating efficiency and uniformity. If the size difference between the left pipe box 19 and the right pipe box 21 is too large, and the heating power difference between the first heater 231 and the second heater 232 is relatively small, the heating efficiency will be low and the heating will be uneven. Similarly, if If the size difference between the left tube box 19 and the right tube box 21 is too small and the heating power difference between the first heater 231 and the second heater 232 is relatively large, the heating efficiency will be low and the heating will be uneven. Therefore, the present invention summarizes the above-mentioned relationship through a large number of numerical simulations, and verifies it through experiments. The best relationship between the size of the left tube box 19 and the right tube box 21 and the heating power of the first heater 231 and the second heater 232 is obtained.

Preferably, the inner diameter of the left tube box is R1, the inner diameter of the right tube box is R2, the power of the electric heating rod of the left tube box is P1, and the power of the electric heating rod of the right tube box is P2, satisfying the following relationship:

P1/P2=a*(R1/R2) ² -b*(R1/R2)+c;

a, b, c are coefficients, among which 0.82<a<0.91, 1.95<b<2.05, 2.67<c<2.77;

Among them, 58mm<R1<87mm;

29mm<R2<68mm;

1.2<R1/R2<2.1; preferably, 1.5<P1/P2<2.3;

Preferably; 1600W<P1<2500W; 670W<P2<1680W.

First electric heater 231 and second electric heater 232 are connected with controller 8 data, and described controller 8 is connected cloud server 24, and cloud server 24 is connected with client 25, and wherein controller 8 will measure the first electric heating The heating power of the heater 231 and the second electric heater 232 is transmitted to the cloud server 24, and then transmitted to the client 25 through the cloud server 24. The client 25 is a mobile phone, and the mobile phone is installed with an APP program. Select the working mode of automatic control or manual control, and the controller 8 controls the working mode selected by the customer to control the heating power of the first electric heater 231 and the second electric heater 232 .

As preferably, under the working mode of manual control, the user obtains the heating power data of the first electric heater 231 and the second electric heater 232 according to the client 25, and manually inputs the first electric heater 231 and the second electric heater 232 at the client 25. The heating power of the heater 232 is then transmitted to the controller through the cloud server, and the controller controls the first electric heater and the second electric heater to heat according to the heating power input by the client.

As preferably, under the working mode of automatic control, the controller 8 determines the ratio of the heating power of the first electric heater 231 and the second electric heater 232 according to the pipe diameters of the left pipe box 19 and the right pipe box 21, and The heating power data of the first electric heater 231 and the second electric heater 232 are transmitted to the client.

The specific determined formula is formula 1.

Preferably, as R1/R2 increases, a and c increase, and b decreases.

Preferably, the number of tube bundles is 3-5, preferably 3 or 4.

Preferably, a=0.87, b=2, c=2.72.

The distance between the centerlines of the left tube box 19 and the right tube box 21 is 220-270mm; preferably 240-250mm.

The radius of the tube bundle is preferably 10-25mm;

As preferably, the distance between the circular arc where the centerline of the tube bundle nearest to the centerline of the left tube box is located and the circular arc where the centerline of the adjacent tube bundle is located (for example, the distance between the circular arc centerlines where tube bundles A and B are located in Fig. 4 The distance between them) is 1.1-2.0 times, preferably 1.2-1.7 times, preferably 1.3-1.5 times the average outer diameter (outer diameter) of the two tube bundles.

The average of the diameters of the two tube bundles is the weighted average of the two tube diameters.

Preferably, the ends of the tube bundles on the same side are aligned, and on the same plane, the extension line of the ends (or the plane where the ends are located) passes through the centerline of the left tube box 19, as shown in FIG. 5 .

Further preferably, the electric heater 23 is an electric heating rod.

The electric heating device of the present invention, as shown in FIG. 5 , the left pipe box 19 communicates with end A of the floating coil; the right pipe box 21 communicates with end D of the floating coil.

Preferably, as shown in Figure 5, the first end of the inner tube bundle of the floating coil 18 is connected to the first tube box 19, the second end is connected to one end of the adjacent outer tube bundle, and one end of the outermost tube bundle of the floating coil 18 is It is connected with the second tube box 8, and the ends of the adjacent tube bundles communicate, thus forming a series structure.

The angle c formed between the plane where the first end is located and the plane where the centerlines of the first tube box 19 and the second tube box 8 are located is 40-50 degrees.

The angle b formed by the plane where the second end is located and the plane where the centerlines of the first pipe box 19 and the second pipe box 8 are located is 25-35 degrees.

Through the above-mentioned preferred design of the included angle, the vibration of the free end can be optimized, so that the heating efficiency can be optimized.

As shown in Figure 5, there are four tube bundles of the floating coil, and the tube bundles A, B, C, and D are connected. Of course, it is not limited to four, and more than one can be set as required, and the specific connection structure is the same as that in FIG. 5 .

There are multiple floating coils 18, and the multiple floating coils 18 are independently connected to the first tube box 19 and the second tube box 8, that is, the multiple floating coils 18 are in a parallel structure.

Although the present invention has been disclosed above with preferred embodiments, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (10)

1. a kind of steam generator, including body of heater, water tank, water pump, described water tank passes through the first pipeline and connects water pump, described water pump Setting electric heater unit in body of heater, described body of heater is connected by the second pipeline, described upper of furnace body arranges steam (vapor) outlet pipeline, institute State water tank inlet porting pipeline；It is characterized in that, in described body of heater, temperature sensor is set, for measuring the temperature of water in body of heater Degree；Described temperature sensor, electric heater unit are connected with controller data, and described controller connects cloud server, and high in the clouds takes Business device is connected with client, and wherein the coolant-temperature gage of measurement is passed to cloud server by controller, then passes through cloud server Send client to, described client is mobile phone, APP program installed by described mobile phone, user can select automatically to control in client System or the mode of operation of hand control, controller root controls the operation to control electric heater unit for the mode of operation of customer selecting.

2. steam generator as claimed in claim 1 is it is characterised in that under the mode of operation of hand control, user is according to visitor Family end obtains temperature data, manually enters heating power in client, is then transferred to controller by cloud server, controls Device controls electric heater unit to heat according to the heating power that client inputs.

3. steam generator as claimed in claim 1 is it is characterised in that under the mode of operation that automatically controls, described controller Temperature according to temperature sensor measurement automatically controlling the heating power of electric heater unit, and by heating power and temperature data Pass to client, if the temperature of temperature sensor measurement is less than certain temperature, controller controls electric heater unit to open Dynamic heating；If the temperature of temperature sensor measurement is higher than certain temperature, controller controls electric heater unit to stop heating.

If 4. steam generator as claimed in claim 3 is it is characterised in that the temperature data of temperature sensor measurement is less than First numerical value, then controller automatically improve the heating power of electric heater unit, if temperature sensor measurement temperature data Higher than second value, then controller reduces the heating power of electric heater unit automatically, and described second value is more than the first numerical value.

5. steam generator as claimed in claim 4, when the temperature of measurement is less than the first temperature, electric heater unit startup adds Heat, and heated with the first power；When the temperature of measurement is less than lower than the first temperature second temperature, electric heater unit with Heated higher than the second power of the first power；When the temperature of measurement is less than three temperature lower than second temperature, electricity adds Thermal is heated with the 3rd power higher than the second power；When the temperature of measurement is less than fourth temperature lower than the 3rd temperature When, electric heater unit is heated with the 4th power higher than the 3rd power；When the temperature of measurement is less than lower than the 4th temperature During five temperature, electric heater unit is heated with the 5th power higher than the 4th power.

6. steam generator as claimed in claim 5, the first temperature is more than second temperature 4-6 degree Celsius, and second temperature is more than 3rd temperature 4-6 degree Celsius, the 3rd temperature is more than the 4th temperature 4-6 degree Celsius, and it is Celsius that the 4th temperature is more than the 5th temperature 4-6 Degree.

7. steam generator as claimed in claim 6, the first temperature is more than second temperature 5.5-6 degree Celsius, and second temperature is big In the 3rd temperature 5-5.5 degree Celsius, the 3rd temperature is more than the 4th temperature 4.5-5 degree Celsius, and the 4th temperature is more than the 5th temperature 4- 4.5 degree Celsius.

8. steam generator as claimed in claim 5, the 5th power is 1.1-1.3 times of the 4th power, and the 4th power is 1.1-1.3 times of three power, the 3rd power is 1.1-1.3 times of the second power, and the second power is the 1.1-1.3 of the first power Times.

9. steam generator as claimed in claim 8, the 5th power is 1.1-1.15 times of the 4th power, and the 4th power is 1.15-1.2 times of three power, the 3rd power is 1.2-1.25 times of the second power, and the second power is the 1.25- of the first power 1.3 again.

10. the steam generator as described in one of claim 1-9 it is characterised in that described electric heater unit include left pipe box, Right pipe box and floating coiled pipe, floating coiled pipe is connected with left pipe box and right pipe box, forms heating fluid closed circulation, electrically heated rod It is arranged in left pipe box and right pipe box；Filling heating fluid in left pipe box, right pipe box and floating coiled pipe；Floating coiled pipe be one or Person is multiple, and each floating coiled pipe includes the tube bank of many circular arcs, and the centrage of the tube bank of many circular arcs is the circle of concentric circular Arc, the end connection of adjacent tube bank, so that the end of tube bank forms tube bank free end；Described concentric circular is with left pipe box Center is the circle in the center of circle, and the internal diameter of left pipe box is R1, and the internal diameter of right pipe box is R2, and the power of the electrically heated rod of left pipe box is P1, The power of the electrically heated rod of right pipe box is P2, meets following relation：

P1/P2=a* (R1/R2)²-b*(R1/R2)+c；

A, b, c are coefficients, wherein 0.82 ＜ a ＜ 0.91,1.95 ＜ b ＜ 2.05,2.67 ＜ c ＜ 2.77；

Wherein 58mm ＜ R1 ＜ 87mm；

29mm ＜ R2 ＜ 68mm；

1.2 ＜ R1/R2 ＜ 2.1；

1600W ＜ P1 ＜ 2500W；

670W ＜ P2 ＜ 1680W.