阅读说明：本技术 一种蒸汽发生器的供水系统和方法 (Water supply system and method for steam generator ) 是由 宋维龙 杜亚鑫 沈雪松 于 2019-11-27 设计创作，主要内容包括：本发明提供了一种蒸汽发生器的供水系统和方法,其中系统包括：第一电磁阀、第二电磁阀、第一管道、第二管道、第三管道和第一喷嘴,其中,第一管道的一端为进水端,第一管道的另一端与第一喷嘴连通,第一喷嘴通过第三管道与蒸汽发生器连通,第二管道的一端为燃气进气端,第二管道的另一端与第三管道连通,第一管道上设置有第一电磁阀,第二管道上设置有第二电磁阀。本发明通过第一管道供水,第二管道输送燃气,喷嘴将第一管道内的液态水转化成雾化水,并在第三管道内与燃气混合,由于雾化水分散更均匀,所以产生的水蒸气与燃气的混合物更均匀,从而可以为燃料电池系统的电化学反应均匀提供氢气和一氧化碳的混合物,提高能量转化的效率。(The invention provides a water supply system and a method of a steam generator, wherein the system comprises: the steam generator comprises a first electromagnetic valve, a second electromagnetic valve, a first pipeline, a second pipeline, a third pipeline and a first nozzle, wherein one end of the first pipeline is a water inlet end, the other end of the first pipeline is communicated with the first nozzle, the first nozzle is communicated with the steam generator through the third pipeline, one end of the second pipeline is a fuel gas inlet end, the other end of the second pipeline is communicated with the third pipeline, the first electromagnetic valve is arranged on the first pipeline, and the second electromagnetic valve is arranged on the second pipeline. According to the invention, water is supplied through the first pipeline, fuel gas is conveyed through the second pipeline, the nozzle converts liquid water in the first pipeline into atomized water, and the atomized water is mixed with the fuel gas in the third pipeline, and as atomized water is dispersed more uniformly, the mixture of generated water vapor and the fuel gas is more uniform, so that the mixture of hydrogen and carbon monoxide can be uniformly provided for the electrochemical reaction of a fuel cell system, and the efficiency of energy conversion is improved.)

1. A water supply system of a steam generator, comprising: the steam generator comprises a first electromagnetic valve, a second electromagnetic valve, a first pipeline, a second pipeline, a third pipeline and a first nozzle, wherein one end of the first pipeline is a water inlet end, the other end of the first pipeline is communicated with the first nozzle, the first nozzle is communicated with the steam generator through the third pipeline, one end of the second pipeline is a gas inlet end, the other end of the second pipeline is communicated with the third pipeline, the first electromagnetic valve is arranged on the first pipeline, and the second electromagnetic valve is arranged on the second pipeline.

2. The system of claim 1, further comprising: the common end of the pipeline flow divider is communicated with the other end of the first pipeline, the first flow dividing end of the pipeline flow divider is communicated with the first nozzle, the second flow dividing end of the pipeline flow divider is communicated with the second nozzle, and the first nozzle and the second nozzle are communicated with the steam generator through the third pipeline.

3. The system of claim 2, further comprising: a third solenoid valve disposed between the first shunt end and the first nozzle, and a fourth solenoid valve disposed between the second shunt end and the second nozzle.

4. The system of claim 3, further comprising: the water inlet end of the first pipeline is communicated with the water outlet of the water storage tank, and the flow meter, the pressure sensor and the water pump are further arranged on the first pipeline.

5. The system of claim 4, further comprising: the gas outlet of the gas bottle is communicated with the gas inlet end of the second pipeline, and the pressure reducer is arranged on the second pipeline.

6. The system of claim 5, further comprising: and the controller is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the pressure sensor, the flowmeter and the water pump.

7. The system of claim 1, wherein the first nozzle is disposed inside the second conduit.

8. The system of claim 1, further comprising: a mixer having a fluid inlet in communication with the third conduit and a fluid outlet in communication with the steam generator inlet, the mixer including a rotatable rotating member within the mixer, the rotating member including at least one vane, the fluid inlet being opposite the fluid outlet.

9. A water supply method of a steam generator, applied to a controller of a water supply system of a steam generator according to claim 6, the method comprising:

the controller obtains a flow measurement value and a pressure measurement value;

determining whether the difference value between the flow measurement value and a preset flow value is equal to 0, and if so, controlling the working state of at least one device in the water pump, the first electromagnetic valve and the second electromagnetic valve according to the preset pressure threshold value and the pressure measurement value; and if not, adjusting the rotating speed of the water pump according to the difference value.

10. The method of claim 9, wherein said controlling the operating state of the water pump, the first solenoid valve, or the second solenoid valve based on the preset pressure threshold and the pressure measurement comprises:

determining whether the pressure measurement is less than the preset pressure threshold;

if the pressure measurement value is smaller than the preset pressure threshold value, determining whether the first electromagnetic valve and the second electromagnetic valve are both opened, and if the first electromagnetic valve and the second electromagnetic valve are both in an opened state, controlling the first electromagnetic valve to be closed or controlling the second electromagnetic valve to be closed; if at least one of the first electromagnetic valve and the second electromagnetic valve is not opened, controlling the water pump to stop;

if the pressure measurement value is not smaller than the preset pressure threshold value, determining whether the first electromagnetic valve and the second electromagnetic valve are both opened, and if the first electromagnetic valve and the second electromagnetic valve are both in an opened state, controlling the water pump to stop; if at least one of the first electromagnetic valve and the second electromagnetic valve is not opened, controlling the electromagnetic valve which is not opened to be opened;

the adjusting the rotation speed of the water pump according to the difference comprises:

if the difference value is larger than 0, reducing the rotating speed of the water pump;

and if the difference is not greater than 0, increasing the rotating speed of the water pump.

Technical Field

The invention relates to the field of fuel cells, in particular to a water supply system and a water supply method for a steam generator.

Background

The fuel cell is a high-efficiency energy conversion device which can directly convert chemical energy stored in combustible gas into electric energy, hydrogen and carbon monoxide are required in the conversion process, carbon fuel and steam can firstly generate steam reforming reaction at 300-800 ℃, and hydrogen and carbon monoxide which can be generated by the steam reforming reaction are introduced into a galvanic pile of the fuel cell to perform electrochemical reaction.

The existing steam reforming process generally injects water into a steam generator to heat the water, the water is heated to generate steam, the generated steam is mixed with carbon fuel to form a mixture, and the mixture is subjected to steam reforming reaction at high temperature to generate hydrogen and carbon monoxide.

Disclosure of Invention

In view of the above, the present invention provides a water supply system and method for a steam generator, which can uniformly supply a mixture of atomized water and carbon fuel to the steam generator, so that the steam generator can generate a uniform mixture of water vapor and carbon fuel, and thus the steam reforming reaction can uniformly generate hydrogen and carbon monoxide.

In order to achieve the above object, the present invention provides the following technical solutions:

in a first aspect, a water supply system of a steam generator includes: the steam generator comprises a first electromagnetic valve, a second electromagnetic valve, a first pipeline, a second pipeline, a third pipeline and a first nozzle, wherein one end of the first pipeline is a water inlet end, the other end of the first pipeline is communicated with the first nozzle, the first nozzle is communicated with the steam generator through the third pipeline, one end of the second pipeline is a fuel gas inlet end, the other end of the second pipeline is communicated with the third pipeline, the first electromagnetic valve is arranged on the first pipeline, and the second electromagnetic valve is arranged on the second pipeline.

With reference to the first aspect, in some optional embodiments, the system further includes: a second nozzle and a conduit diverter, a common end of said conduit diverter being in communication with said other end of said first conduit, a first diverter end of said conduit diverter being in communication with said first nozzle, a second diverter end of said conduit diverter being in communication with said second nozzle, said first nozzle and said second nozzle each being in communication with said steam generator through said third conduit.

In combination with the above embodiment, in some optional embodiments, the system further includes: a third solenoid valve disposed between the first branch end and the first nozzle, and a fourth solenoid valve disposed between the second branch end and the second nozzle.

In combination with the above embodiment, in some optional embodiments, the system further includes: the water inlet end of the first pipeline is communicated with the water outlet of the water storage tank, and the first pipeline is further provided with the flowmeter, the pressure sensor and the water pump.

In combination with the above embodiment, in some optional embodiments, the system further includes: the gas outlet of the gas bottle is communicated with the gas inlet end of the second pipeline, and the pressure reducer is arranged on the second pipeline.

In combination with the above embodiment, in some optional embodiments, the system further includes: and a controller electrically connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the pressure sensor, the flow meter, and the water pump.

With reference to the first aspect, in certain alternative embodiments, the first nozzle is disposed inside the second duct.

With reference to the first aspect, in some optional embodiments, the system further includes: a mixer, said mixer having a fluid inlet in communication with said third conduit and a fluid outlet in communication with said steam generator inlet, said mixer including a rotatable rotating member within, said rotating member including at least one vane, said fluid inlet being opposite said fluid outlet.

In a second aspect, a water supply method of a steam generator is applied to the controller of the water supply system of the steam generator, and the method includes:

the controller obtains a flow measurement value and a pressure measurement value;

determining whether the difference value between the flow measurement value and a preset flow value is equal to 0, and if so, controlling the working state of at least one device of the water pump, the first electromagnetic valve and the second electromagnetic valve according to the preset pressure threshold value and the pressure measurement value; and if not, adjusting the rotating speed of the water pump according to the difference.

With reference to the second aspect, in some optional embodiments, the controlling the operating state of the water pump, the first solenoid valve, or the second solenoid valve according to the preset pressure threshold and the pressure measurement value includes:

determining whether the pressure measurement is less than the predetermined pressure threshold;

if the pressure measurement value is smaller than the preset pressure threshold value, determining whether the first electromagnetic valve and the second electromagnetic valve are both opened, and if the first electromagnetic valve and the second electromagnetic valve are both in an opened state, controlling the first electromagnetic valve to be closed or controlling the second electromagnetic valve to be closed; if at least one of the first electromagnetic valve and the second electromagnetic valve is not opened, controlling the water pump to stop;

if the pressure measurement value is not smaller than the preset pressure threshold value, determining whether the first electromagnetic valve and the second electromagnetic valve are both opened, and if the first electromagnetic valve and the second electromagnetic valve are both in an opened state, controlling the water pump to stop; if at least one of the first electromagnetic valve and the second electromagnetic valve is not opened, controlling the electromagnetic valve which is not opened to be opened;

the adjusting the rotation speed of the water pump according to the difference value comprises:

if the difference is greater than 0, reducing the rotating speed of the water pump;

and if the difference is not greater than 0, increasing the rotating speed of the water pump.

The invention provides a water supply system and a method of a steam generator, wherein the system comprises: the steam generator comprises a first electromagnetic valve, a second electromagnetic valve, a first pipeline, a second pipeline, a third pipeline and a first nozzle, wherein one end of the first pipeline is a water inlet end, the other end of the first pipeline is communicated with the first nozzle, the first nozzle is communicated with the steam generator through the third pipeline, one end of the second pipeline is a fuel gas inlet end, the other end of the second pipeline is communicated with the third pipeline, the first electromagnetic valve is arranged on the first pipeline, and the second electromagnetic valve is arranged on the second pipeline. Therefore, the first pipeline can be used for supplying water, the first electromagnetic valve can control the water supply process, the second pipeline can be used for conveying fuel gas, the first nozzle can convert liquid water in the first pipeline into atomized water and mix the atomized water with the fuel gas conveyed by the second pipeline in the third pipeline to form a mixture of the atomized water and the fuel gas, and the atomized water is dispersed more uniformly, so that the mixture of the generated water vapor and the fuel gas is more uniform after the mixture is introduced into the steam generator, the mixture of the water vapor and the fuel gas can be uniformly provided for the electrochemical reaction of the fuel cell system, and the energy conversion efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic view illustrating a water supply system of a steam generator according to the present invention;

fig. 2 is another schematic structural view illustrating a water supply system of a steam generator according to the present invention;

FIG. 3 is another schematic view illustrating a water supply system of a steam generator according to the present invention;

FIG. 4 is another schematic structural view illustrating a water supply system of a steam generator according to the present invention;

FIG. 5 is another schematic view illustrating a water supply system of a steam generator according to the present invention;

FIG. 6 is another schematic structural view illustrating a water supply system of a steam generator according to the present invention;

fig. 7 is another schematic structural view illustrating a water supply system of a steam generator according to the present invention;

FIG. 8 illustrates a fluid flow direction intent of a water supply of a steam generator provided by the present invention;

fig. 9 is a schematic flow chart illustrating a water supply method of a steam generator according to the present invention;

fig. 10 is another flow chart illustrating a water supply method of a steam generator according to the present invention.

Detailed Description

The invention discloses a water supply system and a method of a steam generator, and a person skilled in the art can appropriately improve the technological parameters by taking the contents into consideration. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present embodiment, "a plurality" means two or more unless otherwise specified.

In the field of fuel cells, the electrochemical reaction of fuel cells requires hydrogen and carbon monoxide as raw materials. In the prior art, water is injected into a steam generator to be heated to generate steam, carbon fuel and the steam are mixed and conveyed into a reaction furnace for steam reforming reaction, and hydrogen and carbon monoxide are generated through chemical reaction. Because the liquid water is directly heated, the water in the steam generator is heated unevenly, and the fluctuation of the generated water vapor is relatively large. And because the mixture is mixed with the carbon fuel after the water vapor is generated, the large fluctuation of the water vapor can cause the non-uniform component of the mixture of the water vapor and the carbon fuel. The quantity and component fluctuation of the mixture of the water vapor and the carbon fuel are large, so that the water vapor reforming reaction taking the water vapor and the carbon fuel as raw materials is uneven, hydrogen and carbon monoxide cannot be uniformly generated, the electrochemical reaction taking the hydrogen and the carbon monoxide as the raw materials is not smooth, and the energy conversion efficiency is low.

In order to uniformly generate a mixture of water vapor and carbon fuel, the invention provides the following scheme:

as shown in fig. 1, the present invention provides a water supply system of a steam generator, including: a first solenoid valve 121, a second solenoid valve 122, a first pipe 111, a second pipe 112, a third pipe 113 and a first nozzle 131, wherein one end of the first pipe 111 is a water inlet end, the other end of the first pipe 111 is communicated with the first nozzle 131, the first nozzle 131 is communicated with the steam generator 100 through the third pipe 113, one end of the second pipe 112 is a gas inlet end, the other end of the second pipe 112 is communicated with the third pipe 113, the first solenoid valve 121 is disposed on the first pipe 111, and the second solenoid valve 122 is disposed on the second pipe 112.

It should be appreciated that, since liquid water is directly injected into the steam generator 100 for heating, the liquid water is heated unevenly, resulting in uneven generation of water vapor. The water may be converted into atomized water through the first nozzle 131 and then heated, and the atomized water is heated uniformly in the steam generator 100, so that the formed steam is relatively uniform.

It should be understood that the gas and the water vapor are directly mixed, which may result in insufficient mixing and insufficient uniformity of components, and the atomized water sprayed from the first nozzle 131 and the gas delivered from the second pipe 112 may be mixed in the third pipe 113 before the water vapor is generated, and since the gas is introduced into the third pipe 113 and the atomized water sprayed from the first nozzle 131 have a certain momentum, the gas and the atomized water may be mixed for the first time in the third pipe 113.

It should be understood that, after the gas and the atomized water are mixed in the third pipe 113, the gas and the atomized water are introduced into the steam generator 100, the gas and the atomized water are heated in the steam generator 100 together, and are heated to form brownian motion, and gas molecules and water molecules make irregular motion in the steam generator 100, so that the components of the mixture of the generated gas and the water vapor are more uniform and the mixture is more fully mixed.

Optionally, the first electromagnetic valve 121 may control the flow rate of the water in the first pipeline 111, may control the first electromagnetic valve 121 to open or close according to actual needs, and may also adjust the opening degree of the first electromagnetic valve 121 so as to control the flow rate and the pressure of the water in the first pipeline 111.

Alternatively, since different steam generators 100 may heat different atomized water with different heating effects in actual use, the first nozzle 131 may be any type of nozzle, such as a fluid high pressure nozzle, and the present invention is not limited to the type of nozzle, and any feasible type of nozzle may be adopted in the present invention.

Optionally, the atomized water and the fuel gas may be both introduced into the third pipe 113, and then the atomized water and the fuel gas are introduced into the steam generator 100 through the third pipe 113, or the atomized water and the fuel gas may be directly introduced into the steam generator 100 without being introduced into the third pipe 113, or the atomized water and the fuel gas may be introduced into the steam generator 100 through different pipes, respectively, which is not limited in this disclosure.

It can be seen from this that, the first pipe 111 can be used for supplying water, the first solenoid valve 121 can control the water supply process, the second pipe 112 can be used for delivering fuel gas, the nozzle can convert the liquid water in the first pipe 111 into atomized water, and mix the atomized water with the fuel gas delivered from the second pipe 112 in the third pipe 113 to form a mixture of atomized water and fuel gas, and since the atomized water is dispersed more uniformly, after the mixture is introduced into the steam generator 100, the mixture of generated water vapor and fuel gas is more uniform, so as to uniformly provide the mixture of water vapor and fuel gas for the electrochemical reaction of the fuel cell system, thereby improving the efficiency of energy conversion.

As shown in fig. 2, optionally, in some optional embodiments, the system further includes: a second nozzle 132 and a tube divider 210, wherein a common end of the tube divider 210 is in communication with the other end of the first tube 111, a first divided end of the tube divider 210 is in communication with the first nozzle 131, a second divided end of the tube divider 210 is in communication with the second nozzle 132, and both the first nozzle 131 and the second nozzle 132 are in communication with the steam generator 100 through the third tube 113.

It should be understood that the water spraying effect of one nozzle may not be as good as the atomization effect of a plurality of nozzles, and particularly, in the case of requiring a large amount of water vapor, the second nozzle 132 may be installed because the atomization efficiency is improved by installing a plurality of nozzles, thereby improving the efficiency of generating water vapor, although the present invention is not limited to the number of nozzles, and more nozzles may be installed.

It should be understood that since a plurality of nozzles are installed, the first pipe 111 needs to be branched, the pipe splitter 210 can be used to save pipes, it is not necessary to provide a separate pipe for each nozzle, and it is convenient to control the water flow rate of all the nozzles on the pipe splitter 210 by one switch.

Alternatively, the first nozzle 131 and the second nozzle 132 may be the same type of nozzle or different types of nozzles, which is not limited in the present invention.

As shown in fig. 3, optionally, in some optional embodiments, the system further includes: a third solenoid valve 123 and a fourth solenoid valve 124, the third solenoid valve 123 being disposed between the first branch end and the first nozzle 131, and the fourth solenoid valve 124 being disposed between the second branch end and the second nozzle 132.

It will be appreciated that variations in water flow and pressure in the water lines may occur due to differences in the manner in which the water is supplied. For example, if the water is supplied by a water pump, the water pump may have different water pumping efficiency due to different set rotation speeds of the water pump, and thus, the water flow rate and the water pressure in the water pipe may be different. For another example, if a water tower is used to supply water, the difference in the amount of water remaining in the water tower may also result in different flow rates and pressures of the water in the water line.

It should be appreciated that a third solenoid valve 123 may be provided between the first split end and the first nozzle 131 and a fourth solenoid valve 124 may be provided between the second split end and the second nozzle 132, and that if there is a change in the water flow and water pressure through the first nozzle 131 and/or the second nozzle 132, the water flow and water pressure through the first nozzle 131 and/or the second nozzle 132 may be adjusted by controlling the third solenoid valve 123 and/or controlling the fourth solenoid valve 124 as desired.

Alternatively, the third valve 123 and the fourth valve 124 may be opened when the water pressure is too high, and only one valve may be left open and the other closed when the water pressure is too low. By controlling the opening, closing, or degree of opening of the valve, the water flow and pressure through the nozzle can be controlled to be within a target flow and target pressure range.

As shown in fig. 4, optionally, in some optional embodiments, the system further includes: a flow meter 140, a pressure sensor 150, a water pump 160 and a water storage tank 170, wherein the water inlet end of the first pipe 111 is communicated with the water outlet of the water storage tank 170, and the flow meter 140, the pressure sensor 150 and the water pump 160 are further arranged on the first pipe 111.

It should be understood that since the solenoid valve and the water pump 160 need to be controlled according to the water flow and the pressure, the flow meter 140 and the pressure sensor 150 may be installed to monitor the water flow and the water pressure in the pipe in real time, and the water pump 160 and the solenoid valve may be controlled according to the collected data of the water flow and the water pressure.

Alternatively, the flow meter 140 may be disposed at any position of the first pipe 111, and the pressure sensor 150 may be disposed at the water outlet of the water pump 160.

Optionally, the type of the water pump 160 may be selected according to actual requirements, and the invention is not limited thereto.

As shown in fig. 5, optionally, in some optional embodiments, the system further includes: a pressure reducer 180 and a gas bottle 190, wherein the gas outlet of the gas bottle 190 is communicated with the gas inlet end of the second pipe 112, and the pressure reducer 180 is disposed on the second pipe 112.

It should be understood that the gas pressure in the gas bottle 190 is too high, if the gas in the gas bottle is directly introduced into the second pipeline, the pipeline may explode, or the gas in the steam generator 100 explodes too much, so that the gas pressure can be reduced through the pressure reducer 180, the risk of explosion can be avoided, and the amount of the gas entering the third pipeline 113 can be controlled, so that the mixing ratio of the water vapor and the gas can be effectively controlled, and the mixing ratio of the water vapor and the gas can be ensured to be relatively uniform.

Alternatively, the gas bottle 190 and the pressure reducer 180 may be selected from a gas bottle 190 and a pressure reducer 180 of a suitable size and model according to actual needs, which is not limited by the present invention.

Optionally, in some optional embodiments, the system further includes: and a controller electrically connected to the first solenoid valve 121, the second solenoid valve 122, the third solenoid valve 123, the fourth solenoid valve 124, the pressure sensor 150, the flow meter 140, and the water pump 160.

Optionally, the electromagnetic valve, the flow meter 140, the pressure sensor 150, the water pump 150, and the like are all electric-related products, data collected by the flow meter 140 and the pressure sensor 150 are transmitted by electric signals, and the electromagnetic valve and the water pump 160 can be controlled to be opened or closed by electric signals, so that a controller can be provided to connect the electromagnetic valve, the flow meter 140, the pressure sensor 150, and the water pump 150, so as to obtain data collected by the flow meter 140 and the pressure sensor 150, and also to control the electromagnetic valve and the water pump 160, which is convenient and fast.

Optionally, the controller may select a suitable controller according to actual needs, or may select other devices having the same or similar functions to the controller, for example, a computer or a single chip microcomputer may be used as the controller, and the present invention does not limit the controller.

As shown in fig. 6, optionally, in some alternative embodiments, the first nozzle 131 is disposed inside the second pipe 112.

Alternatively, the nozzle may be disposed in the second tube 112 and the second tube 112 may insulate a portion of the heat because the nozzle is located close to the steam generator 100 and the temperature around the steam generator 100 is high, which may cause boiling of water entering the nozzle and damage the nozzle.

It should be understood that, in addition to the second pipe 112 being capable of isolating a portion of heat, the second pipe 112 is filled with fuel gas, which has poor thermal conductivity, and is also capable of effectively isolating heat to prevent water entering the nozzle from boiling.

Optionally, in addition to placing the nozzle inside or outside the second pipe 112, other measures may be taken to prevent the water entering the nozzle from boiling, for example, the nozzle may be placed inside a device capable of cooling, and a cold water circulation pipe may be placed around the nozzle to reduce the temperature of the water entering the nozzle.

Optionally, other thermal barriers may be provided around the nozzle.

As shown in fig. 7, optionally, in some optional embodiments, the system further includes: a mixer 200, a fluid inlet of the mixer 200 being communicated with the third duct 113, a fluid outlet of the mixer 200 being communicated with an inlet of the steam generator 100, the mixer 200 including a rotatable rotating member inside, the rotating member including at least one vane, the fluid inlet being opposite to the fluid outlet.

It should be appreciated that in order to make the mixing ratio of the fuel gas and the water vapor relatively uniform, the atomized water and the fuel gas may be introduced into the mixer 200 before the atomized water and the fuel gas enter the steam generator 100, and the mixer 200 may sufficiently mix the atomized water and the fuel gas.

Optionally, the mixer 200 may adopt a static mixer, and by designing the internal structure of the mixer 200, after the gas and the atomized water are introduced into the mixer 200, the momentum of the gas and the atomized water may push the rotating part inside the mixer 200 to rotate, thereby generating a stirring effect, and fully mixing the gas and the atomized water.

Optionally, be provided with at least one blade on the rotary part, of course, also can be three blade, the mutual contained angle between every blade can be 120 degrees, and gas and atomized water can promote the blade for rotary part drives three blade and rotates simultaneously, and stirring effect is better, and so gas and atomized water mix more evenly.

Alternatively, the fluid inlet of the mixer 200 is opposite to the fluid outlet, so that the path of the gas and the atomized water passing through the mixer 200 is the longest, and the longer the path of the gas and the atomized water passing through the mixer 200, the higher the mixing degree, and the more uniform the mixing ratio of the gas and the atomized water.

As shown in fig. 8, the water in the water storage tank flows to the pipe divider 210 through the first pipe 111, the pipe divider 210 divides the water into two branches, which flow to the first nozzle 131 and the second nozzle 132, respectively, the water flows to the end of the second pipe 112 through the first nozzle 131 and the second nozzle 132, the end of the second pipe 112 is as shown by the block in fig. 8, the first nozzle 131 and the second nozzle 132 are disposed inside the end of the second pipe 112, the gas in the gas bottle 190 flows to the end of the second pipe 112 through the second pipe 112, and is mixed with the atomized water sprayed from the first nozzle 131 and the second nozzle 132 at the end for the first time, the mixed gas and atomized water are introduced into the mixer 200 through the third pipe 113 and are mixed again in the mixer 200, the gas and atomized water are also mixed during the process of passing through the third pipe 113, the gas and atomized water from the mixer 200 flow to the steam generator 100, the steam generator 100 is heated to form a mixture of steam and fuel gas, and the steam and fuel gas are continuously mixed during the heating process. In the whole process, a plurality of mixing links are provided, so that the components of the mixture of finally generated steam and fuel gas are uniform, and the amount of the generated steam and the fuel gas is relatively stable.

As shown in fig. 9, the present invention provides a water supply method of a steam generator, which is applied to the controller of the water supply system of the steam generator, the method comprising:

s100, the controller obtains a flow measurement value and a pressure measurement value;

s200, determining whether the difference value between the flow measurement value and a preset flow value is equal to 0, if so, executing S400, and if not, executing S300;

s300, adjusting the rotating speed of the water pump according to the difference value;

and S400, controlling the working state of at least one of the water pump, the first electromagnetic valve 121 and the second electromagnetic valve 122 according to the preset pressure threshold value and the preset pressure measurement value.

It should be understood that the flow measurement value may be obtained through the flow meter 140, the pressure measurement value may be obtained through the pressure sensor 150, the preset flow value may be preset in the control program for controlling the rotation speed of the water pump 160, and the preset pressure value may be preset in the control program for controlling the opening or closing of the third and fourth solenoid valves 123 and 124.

As shown in fig. 10, optionally, in some alternative embodiments, the controlling the operating state of the water pump 160, the first solenoid valve 121, or the second solenoid valve 122 according to the preset pressure threshold and the pressure measurement value includes:

s100, the controller obtains a flow measurement value and a pressure measurement value;

s200, determining whether the difference value between the flow measurement value and a preset flow value is equal to 0, if so, executing S220, and if not, executing S210;

s210, determining whether the difference is larger than 0; if the value is greater than 0, executing S211, and if the value is not greater than 0, executing S212;

s211, reducing the rotating speed of the water pump 160;

s212, increasing the rotating speed of the water pump 160;

s220, determining whether the pressure measurement value is smaller than the preset pressure threshold value;

if the pressure measurement value is smaller than the preset pressure threshold, performing S221, and if the pressure measurement value is not smaller than the preset pressure threshold, performing S224;

s221, determining whether both the first solenoid valve 121 and the second solenoid valve 122 are open, if both the first solenoid valve 121 and the second solenoid valve 122 are open, executing S222, and if at least one of the first solenoid valve 121 and the second solenoid valve 122 is not open, executing S223;

s222, controlling the first electromagnetic valve 121 to close or controlling the second electromagnetic valve 122 to close;

s223, controlling the water pump 160 to stop;

s224, determining whether both the first solenoid valve 121 and the second solenoid valve 122 are open, if both the first solenoid valve 121 and the second solenoid valve 122 are open, executing S226, and if at least one of the first solenoid valve 121 and the second solenoid valve 122 is not open, executing S225;

s225, controlling the solenoid valve which is not opened to be opened;

and S226, controlling the water pump 160 to stop.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.