CN109404871B - A kind of solar steam generator of connection tube spacing variation - Google Patents
A kind of solar steam generator of connection tube spacing variation Download PDFInfo
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- CN109404871B CN109404871B CN201811212247.4A CN201811212247A CN109404871B CN 109404871 B CN109404871 B CN 109404871B CN 201811212247 A CN201811212247 A CN 201811212247A CN 109404871 B CN109404871 B CN 109404871B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The present invention provides a kind of solar steam generators, including reflecting mirror and drum, the drum is located at the focal position of reflecting mirror, solar energy reflection is used to heat the water in drum by the reflecting mirror to drum, the heat pipe upwardly extended since drum bottom is arranged in inside steam drum, the heat pipe is more, and communicating pipe is arranged between at least two adjacent heat pipes；From heat pipe lower part to heat pipe top, the spacing of communicating pipe is continuously increased.The present invention provides a kind of solar steam generator of new heat pipe structure, the present invention can guarantee to reach pressure equilibrium as soon as possible in process fluid flow, save communicating pipe quantity, energy-saving material by the variation of the diameter of communicating pipe.
Description
Technical field
The present invention relates to a kind of steam generator technology more particularly to a kind of steam generators of the heat pipe of Novel structure.
Background technique
Hot pipe technique is U.S. Los Alamos (Los Alamos) in 1963National LaboratoryGeorge Ge Luofo
One kind of (George Grover) invention is known as the heat transfer of " heat pipe "Element, it takes full advantage of heat-conduction principle and phase transformation is situated between
The heat of thermal objects is transmitted to outside heat source rapidly by the quick thermal transport property of matter through heat pipe, and the capacity of heat transmission is more than to appoint
The capacity of heat transmission of what known metal.
The industries such as aerospace, military project were widely used in front of hot pipe technique, since being introduced into radiator manufacturing, so that
People change the mentality of designing of traditional heat sinks, get rid of the list for obtaining more preferable heat dissipation effect by high air quantity motor merely
One radiating mode makes radiator obtain satisfied heat transfer effect using hot pipe technique, opens heat dissipation industry new world.At present
Heat pipe is widely used in various heat exchange equipments, including power domain, such as the UTILIZATION OF VESIDUAL HEAT IN of power plant etc..
Steam generator is the mechanical equipment for water being heated as using the thermal energy of fuel or other energy steam.Steam hair
Raw device application field is extensive, is widely used in clothing factory, drycleaner's, restaurant, steamed bun shop,Dining room,Dining room, factories and miness,Bean productFactory etc.
Place.Current steam generator is also widely used in the treatment of various diseases, be particularly applied to muscle, ligament etc. because
For aging and it is old damage caused by chronic disease treatment, such as CN2167709Y patent, but at present in the prior art, such as
CN2167709Y patent, because directly generating steam by heating, the vapor (steam) temperature that will lead to generation is excessively high, and will lead to
The water from steam of generation point is excessive, and drug is because be that particle it is possible that will appear is deposited on lower part, the steam sprayed
Middle active constituent content is too low, and temperature is excessively high, and intelligence degree is not high in the prior art, can not carry out effective intelligence
Energyization operation.
In background technique, when utilizing solar energy heating steam generator, solar energy perhaps directly heats drum or passes through
Secondary heat exchange generates steam, especially directly heats drum, and drum top is carried out using the heat convection of inside steam drum under
The fluid convection in portion exchanges heat, but needs lower part hot fluid free convection to top in such cases, and heat exchange efficiency is low.
In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, a kind of new structure is provided
Solar steam generator makes full use of heat source, reduces energy consumption, improves combustion efficiency.
Summary of the invention
In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, a kind of new heat pipe knot is provided
Structure steam generator, to realize making full use of for solar energy.
To achieve the goals above, technical scheme is as follows:
A kind of solar steam generator, including reflecting mirror and drum, the drum are located at the focal position of reflecting mirror, institute
It states reflecting mirror and solar energy reflection is used to heat water in drum to drum, inside steam drum setting is prolonged upwards since drum bottom
The heat pipe stretched, the heat pipe are more, and communicating pipe is arranged between at least two adjacent heat pipes；From heat pipe lower part on heat pipe
The spacing in portion, communicating pipe is continuously increased.
Preferably, from heat pipe lower part to heat pipe top, the ever-increasing amplitude of the spacing of communicating pipe is increasing.
Preferably, the bottom of the lower end of the heat pipe is the inner wall of drum.
Preferably, communicating pipe is arranged between at least two adjacent heat pipes.
Preferably, the center of drum is located at the focal position of reflecting mirror.
Preferably, header is arranged in the bottom of the drum, the heat pipe lower part is connected to header.
Preferably, the lower wall surface of the header is the face of the bottom of drum.
Preferably, the heat pipe surrounds bottom centre's point annular Multi-layers distributing of drum.
Preferably, be arranged multilayer heat pipe along bottom centre's point of drum, the axis of every layer of heat pipe and central point away from
From identical, to be formed using the bottom centre of drum point as the arc structure in the center of circle.
Preferably, the outer diameter of heat pipe is d in horizontal plane projection, between the adjacent heat pipe center of circle of same layer away from
From for L, it is N, same layer institute that the center of circle of heat pipe and two closed on the heat pipe center of circle of adjacent row, which constitute the apex angle of isosceles triangle,
Then meet claimed below in diameter of a circle D2, the diameter of a circle D1 of adjacent inner layer:
Sin (N)=a-b*S2- c*S, S=d/ (D2-D1), a, b, c are parameters, meet following require:
0.846<a<0.848,0.529<b<0.530,0.846<b<0.848；
0.3<d/L<0.5。
Preferably, gradually becoming smaller with d/L, a is increasing, and b is smaller and smaller, and c is increasing.
Compared with prior art, the present invention has the advantage that:
1) because of flowing up with heat pipe vertical portion fluid, the continuous heat release of fluid, as fluid is constantly put
Heat, the pressure in different heat pipes gradually decrease.The present invention can guarantee to flow in fluid by the variation of the diameter of communicating pipe
Reach pressure equilibrium in journey as soon as possible, saves communicating pipe quantity, energy-saving material.
1) present invention improves solar steam generator, by the way that heat pipe is arranged in drum bottom, passes through heat pipe
Solar energy is quickly transmitted to the top of drum by the fast feature of heat transfer rate, improves the heat transfer rate to solar energy, can
The absorbability of further satisfaction heat.
2) will be set communicating pipe between adjacent heat pipe, it, can be to avoid uneven heating between heat pipe by the way that communicating pipe is arranged
It is even, realize that the pressure between heat pipe is balanced, defect caused by avoiding the uneven heating between different heat pipes even.
3) changing rule of the invention by crossing distributed quantity and caliber communicating pipe, can guarantee in process fluid flow
In reach as soon as possible pressure equilibrium.
4) regularity of distribution of opposite heat tube has carried out a large amount of numerical simulation and experimental study, summarizes on the basis of research
The relational expression of optimal heat pipe distribution.
Detailed description of the invention
Fig. 1 is solar steam generator structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of steam generator setting communicating pipe of the present invention.
Fig. 3 is heat pipe horizontal plane projection structure schematic diagram of the present invention.
Fig. 4 is control structure schematic diagram of the present invention.
In figure: 1- reflective mirror, 2- drum, 3-heat pipes, 4- water inlet, 5- steam (vapor) outlet, 6- communicating pipe, 7- central controller
Specific embodiment
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.
Herein, if without specified otherwise, it is related to formula, "/" indicates that division, "×", " * " indicate multiplication.
A kind of solar steam generator using heat pipe is disclosed picture 1-4, and the steam generator includes reflecting mirror 1
With drum 2, the drum 2 is located at the focal position of reflecting mirror 1, and solar energy reflection is used to heat by the reflecting mirror 1 to drum 2
Water in drum 2, the steam generator further include the heat pipe 3 being arranged in drum 2, as shown in Figure 1, the heat pipe 3 is arranged
It is upwardly extended inside drum 2, and since 2 bottom of drum, the heat pipe 3 is more, and the bottom of the lower end of the heat pipe connects
It connects on the inner wall of drum.
Traditional solar steam generator is all to generate steam by direct irradiation of sunlight drum, utilizes inside steam drum
Heat convection carry out the fluid convection heat exchange of drum upper and lower part, but need lower part hot fluid natural in such cases
It is by convection into top, heat exchange efficiency is low, and the present invention is by being arranged heat pipe in drum bottom, because the gas of the inside is vertical after heat pipe is heated
The evaporation ends for carving the top for the heat pipe that evaporation rises, exchange heat on top, and such heat is just quickly transmitted to drum top,
Heat exchange efficiency can be quickly improved, solar energy heating utilization rate is improved.
Preferably, the bottom of the lower end of the heat pipe 3 is the inner wall of drum 2.Make heat pipe and drum
Thermal contact resistance is reduced using the inner wall of drum as the lower end wall surface of heat pipe for an entirety, so that compact overall structure,
Preferably, the drum and heat pipe are to be integrated.
Preferably, communicating pipe 6 is arranged between at least two adjacent heat pipes 3.Such as it is as shown in Fig. 2, adjacent to each other
Communicating pipe 6 is set between two heat pipes 5.Certainly, Fig. 2 is only schematic diagram, although showing only two heat pipes, not table
Bright only two heat pipes., can be even to avoid uneven heating between heat pipe 3 by the way that communicating pipe 6 is arranged, realize the pressure between heat pipe
Equilibrium, defect caused by avoiding the uneven heating between different heat pipes even.
Preferably, being continuously increased the distance between adjacent communicating pipe 6 from 3 lower part of heat pipe to 3 top of heat pipe.Because hot
Pipe absorbs solar energy, the then heat release in drum in bottom.With flowing up for heat pipe vertical portion fluid, fluid is continuous
Heat release, with the continuous heat release of fluid, the pressure in different heat pipes is gradually decreased, therefore by above-mentioned setting, can be guaranteed
Reach pressure equilibrium in process fluid flow as soon as possible, saves communicating pipe quantity, energy-saving material.
Preferably, the distance between adjacent communicating pipe 6, ever-increasing amplitude was got over from 3 lower part of heat pipe to 3 top of heat pipe
Come bigger.Be found through experiments that, above-mentioned setting, can guarantee in process fluid flow it is more excellent faster reach pressure equilibrium.
This is also the optimal mode of communicating got and largely studying pressure changes in distribution rule.
Preferably, from 3 lower part of heat pipe to 3 top of heat pipe, the diameter of communicating pipe 6 constantly reduces.This purpose is to set
It sets and guarantees bigger connection area, because of flowing up with fluid, the continuous heat release of fluid, as fluid is constantly put
Heat, the pressure in different heat pipes is smaller and smaller, therefore by above-mentioned setting, can guarantee to reach as soon as possible in process fluid flow
To pressure equilibrium.
Preferably, from 3 lower part of heat pipe to 3 top of heat pipe, the ever-reduced amplitude of the diameter of communicating pipe 6 is increasing.
Be found through experiments that, above-mentioned setting, can guarantee in process fluid flow it is more excellent faster reach pressure equilibrium.This is also logical
The optimal mode of communicating that excessive quantifier elimination pressure changes in distribution is regular and gets.
Preferably, the center of drum is located at the focal position of reflecting mirror.It is located at reflector focal point position by drum center
It sets, it is ensured that drum Omnidirectional heating is uniform.
Preferably, medical fluid is arranged in the drum.The steam generator is a kind of steaming of drug fumigation in treating function
Vapour generator.
Preferably, drum includes water inlet 4 and steam (vapor) outlet 5, the steam of generation is directly gone out from steam (vapor) outlet 5.
Alternatively, the steam generator further includes medical fluid evaporation tank, and the medical fluid evaporation tank passes through pipeline
It is connected to drum 3, atomizer is set in the medical fluid evaporation tank, steam (vapor) outlet is arranged in the medical fluid evaporation tank.
Drug is set in the drum, the drug immersion in water, in use, being added in drum by heat pipe
Hot water, by water come Heating Drug, to generate medical fluid in drum 3.The medical fluid of generation enters medical fluid evaporation tank by pipeline
It is interior, and be atomized in medical fluid evaporation tank, then it is discharged by steam (vapor) outlet.Steam (vapor) outlet can be directly against the life of patient
Sick position discharge, for treating.
The heat pipe be it is multiple, along the center radially outward direction of drum bottom, the distribution density of the heat pipe
It is smaller and smaller.Numerical simulation and it was found that, along drum bottom center radially outward direction, the received heat of heat pipe
It is smaller and smaller, and the temperature of the heat pipe of different location is also different, to cause local heating uneven.Because in
The solar energy of the heart, focusing is more, and received heat is increasing, and exchange capability of heat is caused also to increase, and therefore, the present invention passes through in drum
The density of the different location setting heat pipe of bottom is different, so that the integral heat pipe temperature made keeps essentially identical, to improve whole
The heat exchange efficiency of body saves material, avoids local damage caused by non-uniform temperature, extend the service life of heat pipe.
Preferably, along the center radially outward direction of drum bottom, the distribution density of the heat pipe is smaller and smaller
Amplitude constantly increase.As the variation of heat pipe distribution density, the present invention has carried out a large amount of numerical simulation and experiment, thus
Obtain the changing rule of above-mentioned heat pipe distribution density.By above-mentioned changing rule, material can be saved, while can also be mentioned
High 9% or so heat exchange efficiency.
Preferably, the diameter and length of each heat pipe 3 are identical.
Preferably, the heat pipe 3 be it is multiple, along the center radially outward direction of drum bottom, the heat pipe
Caliber it is smaller and smaller.The reason of concrete reason is with front heat pipe distribution density is identical.
Preferably, along the center radially outward direction of drum bottom, the smaller and smaller width of the caliber of the heat pipe
Degree is continuous to be increased.The reason of concrete reason is with front heat pipe distribution density is identical.
Preferably, the distribution density and length of all heat pipes 3 are all identical.
Preferably, as shown in figure 3, from top downwards from, or horizontal plane projection on, the heat pipe 3 surround vapour
Wrap the central point annular Multi-layers distributing of bottom.
Preferably, heat pipe 3 is arranged in center position, multilayer heat pipe 3, the axis of every layer of heat pipe 3 are set along central point
With it is identical at a distance from central point, thus formed using the central point of drum bottom as the arc structure in the center of circle.
By numerical simulation and experiment discovery, the distance between heat pipe 3, including distance at same diametrical position and adjacent
The distance between layer cannot be too small, too small to will lead to heat pipe distribution excessively, causes the caloric receptivity of every heat pipe insufficient, crosses conference and leads
The distribution of pyrogenicity pipe is very little, causes heat pipe to overheat, therefore the application sums up by a large amount of numerical simulation and experiment and carrys out heat pipe 3
The distribution of the optimization of distribution, the deficiency so that heat pipe can neither recept the caloric, and it is excessive to recept the caloric.
As shown in figure 3, the internal diameter of the drum is D, the outer diameter of heat pipe 3 is d, the adjacent heat pipe central axis of same layer
The circular arc of line is N, and the distance between adjacent heat pipe center of circle of same layer is L, and the center of circle of the circular arc is the center of storage heater
Axis, diameter of a circle D2 where same layer, the diameter of a circle D1 of adjacent inner layer then meet claimed below:
Sin (N)=a-b*S2- c*S, S=d/ (D2-D1), a, b, c are parameters, meet following require:
0.846<a<0.848,0.529<b<0.530,0.846<b<0.848；
Preferably, a=0.847, b=0.5292, c=0.847.
Preferably, gradually becoming smaller with D2/D, a is increasing, b, and c is smaller and smaller.
Preferably, 0 ° < N < 120 °.
Preferably, 10 ° < N < 70 °.
Above-mentioned empirical equation is to be obtained by a large amount of numerical simulations and experiment, and pass through verification experimental verification, and error is substantially
Within 3%.
Preferably, the heat absorption capacity 900-1100W of heat pipe, further preferably 1000W；
Internal diameter is that D is 1300-1500 millimeters, further preferably 1400 millimeters.
Heat pipe 3 is 9-10 millimeters, further preferably 9.5mm.
Certainly, Fig. 3 shows only 3 layers of heat pipe, can actually be more than three layers.D2, D1 of Fig. 3 is also only an act
Example, can actually be using the heat pipe of central axis as the layer where D1, i.e. D1=0, using current D1 as the layer where D2.
Fig. 3 shows only half, the other half is symmetrical therewith, is just not described in detail.
Preferably, temperature sensor is arranged in the drum 3, for measuring the temperature of water in drum 3.
Preferably, water level sensor is arranged in the drum 3, for measuring the water level in drum.
Preferably, pressure sensor is arranged in 3 top of drum, for measuring pressure in drum 3.
Preferably, flow sensor is set on the steam (vapor) outlet 5, the steam stream for cooling water of units of measurement time output
Amount.
Preferably, temperature sensor is arranged on the steam (vapor) outlet 5, for measuring the vapor (steam) temperature of outlet.
Preferably, the temperature sensor, water level sensor, 7 data of pressure sensor, flow sensor and controller
Connection.
Preferably, electric heater is arranged in the drum, avoid in the insufficient situation of solar energy for supplementary heating.
(1) outlet steam temperature controls
Temperature sensor 7 is arranged in the steam (vapor) outlet position, for measuring the temperature of steam (vapor) outlet；The temperature sensing
7 data connection of device, electric heater and controller, the controller automatically control electricity according to the temperature of temperature sensor measurement and add
The heating power of thermal, if the temperature of temperature sensor measurement is lower than certain temperature, controller controls electric heating dress
Set starting heating；If the temperature of temperature sensor measurement is higher than certain temperature, controller, which controls electric heater unit, to be stopped adding
Heat.
Preferably, controller improves electricity automatically if the temperature data of temperature sensor measurement is lower than the first numerical value
The heating power of heating device, if the temperature data of temperature sensor measurement is higher than second value, controller reduces automatically
The heating power of electric heater unit, the second value are greater than the first numerical value.
Preferably, when the temperature of measurement be lower than the first temperature when, electric heater unit starting heating, and with the first power into
Row heating；When the temperature of measurement is lower than the second temperature lower than the first temperature, electric heater unit is to be higher than the of the first power
Two power are heated；When the temperature of measurement is lower than the third temperature lower than second temperature, electric heater unit is to be higher than second
The third power of power is heated；When the temperature of measurement be lower than four temperature lower than third temperature when, electric heater unit with
The 4th power higher than third power is heated；When the temperature of measurement is lower than five temperature lower than the 4th temperature, electricity adds
Thermal is heated with the 5th power for being higher than the 4th power.
Preferably, the first temperature is greater than 8-10 degrees Celsius of second temperature, it is Celsius that second temperature is greater than third temperature 8-10
Degree, third temperature are greater than the 4th 8-10 degrees Celsius of temperature, and the 4th temperature is greater than the 5th 8-10 degrees Celsius of temperature.
Preferably, the first temperature is greater than 9 degrees Celsius of second temperature, second temperature is greater than 9 degrees Celsius of third temperature, third
Temperature is greater than 9 degrees Celsius of the 4th temperature, and the 4th temperature is greater than 9 degrees Celsius of the 5th temperature.
Preferably, the 5th power is 1.1-1.3 times of the 4th power, the 4th power is 1.1-1.3 times of third power,
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.
Preferably, the 5th power is 1.1-1.15 times of the 4th power, the 4th power is the 1.15-1.2 of third power
Times, third power is 1.2-1.25 times of the second power, and the second power is 1.25-1.3 times of the first power.
By intelligent controlled electrical heater heating power, to guarantee the steam temperature exported in the insufficient situation of solar energy
Degree meets needs, can be further improved the intelligence of system.
(2) hot water temperature controls
Preferably, temperature sensor is arranged in the drum 3, for measuring the temperature of water in drum 3.The temperature passes
7 data connection of sensor, electric heater and controller, the controller 7 are automatically controlled according to the temperature of temperature sensor measurement
The heating power of electric heater unit, if the temperature of temperature sensor measurement is lower than certain temperature, controller 7 controls electricity and adds
Thermal starting heating；If the temperature of temperature sensor measurement is higher than certain temperature, controller 7 controls electric heater unit and stops
Only heat.
The controller 7 automatically controls the heating power of electric heater unit according to the temperature of temperature sensor measurement.
Preferably, controller controls electric heating dress if the temperature of temperature sensor measurement is lower than certain temperature
Set starting heating.If the temperature of temperature sensor measurement is higher than certain temperature, such as higher than dangerous critical-temperature, then for
It avoids overheating, controller controls electric heater unit and stops heating.
Preferably, controller 7 improves adding for electric heater unit automatically if detection temperature data is lower than the first numerical value
Thermal power, if the temperature data of measurement is higher than second value, controller 7 reduces the heating power of electric heater unit automatically,
The second value is greater than the first numerical value.
Preferably, when the temperature of measurement be lower than the first temperature when, electric heater unit starting heating, and with the first power into
Row heating；When the temperature of measurement is lower than the second temperature lower than the first temperature, electric heater unit is to be higher than the of the first power
Two power are heated；When the temperature of measurement is lower than the third temperature lower than second temperature, electric heater unit is to be higher than second
The third power of power is heated；When the temperature of measurement be lower than four temperature lower than third temperature when, electric heater unit with
The 4th power higher than third power is heated；When the temperature of measurement is lower than five temperature lower than the 4th temperature, electricity adds
Thermal is heated with the 5th power for being higher than the 4th power.
Preferably, the first temperature is greater than 4-6 degrees Celsius of second temperature, second temperature is greater than 4-6 degrees Celsius of third temperature,
Third temperature is greater than the 4th 4-6 degrees Celsius of temperature, and the 4th temperature is greater than the 5th 4-6 degrees Celsius of temperature.
Further preferably, the first temperature is greater than 5.5-6 degrees Celsius of second temperature, and second temperature is greater than third temperature 5-5.5
Degree Celsius, third temperature is greater than the 4th 4.5-5 degrees Celsius of temperature, and the 4th temperature is greater than the 5th 4-4.5 degrees Celsius of temperature.
Preferably, the 5th power is 1.1-1.3 times of the 4th power, the 4th power is 1.1-1.3 times of third power,
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.
Preferably, the 5th power is 1.1-1.15 times of the 4th power, the 4th power is the 1.15-1.2 of third power
Times, third power is 1.2-1.25 times of the second power, and the second power is 1.25-1.3 times of the first power.
It, can be with especially by the setting of differential heating power and the temperature difference by the preferred of above-mentioned temperature and power
Heating efficiency is further increased, the time is saved.It is found through experiments that, can be improved the heating efficiency of 10-15% or so.
Preferably, the temperature sensor is arranged on the bottom wall of drum.
Preferably, the temperature sensor be it is multiple, the temperature data of the controller foundation is multiple temperature sensing
The temperature of device measurement, to control the operation of steam generator.
By intelligent controlled electrical heater heating power, to guarantee that hot water temperature meets in the insufficient situation of solar energy
It needs, to be further ensured that the vapor (steam) temperature of output is met the requirements, can be further improved the intelligence of system.
(3) water level control
Preferably, water level sensor, 7 data of the water level sensor, water pump and controller are arranged in the drum 3
Connection, the controller 7 is according to the power of the water level automatically controlled water pump in the drum 3 of measurement.Preferably, if under water level
Drop, controller are then led to increase the flow of the water into drum 3 if water level is excessively high by the power that control improves water pump
It crosses the power for reducing water pump or switches off the pump to reduce into water flow in drum 3 or stop supplying water into drum 3.
By above-mentioned setting, on the one hand avoid water level it is too low caused by steam generation rate is too low and electric heater unit
Dry combustion method, cause electric heater unit damage and generate safety accident, on the other hand, avoiding and being caused because water level is excessively high
Water it is excessive, realize the intelligent control of water level.
Preferably, controller 7 is controlled water pump and is supplied with the first power when the water level of measurement is lower than the first water level
Water；When the water level of measurement is lower than second water level lower than the first water level, controller 7 controls water pump to be higher than the of the first power
Two power supply water；When the water level of measurement is lower than the third water level lower than the second water level, controller 7 controls water pump to be higher than
The third power of second power supplies water；When the water level of measurement is lower than four water level lower than third water level, controller 7 is controlled
Water pump processed is supplied water with the 4th power for being higher than third power；When the water level of measurement is lower than fiveth water level lower than the 4th water level
When, controller 7 is controlled water pump and is supplied water with the 5th power for being higher than the 4th power.
Preferably, the first water level is 1.1-1.3 times of the second water level, the second water level is 1.1-1.3 times of third water level,
Third water level is 1.1-1.3 times of the 4th water level, and the 4th water level is 1.1-1.3 times of the 5th water level.
Preferably, the first water level is 1.1-1.15 times of the second water level, the second water level is the 1.15-1.2 of third water level
Times, third water level is 1.2-1.25 times of the 4th water level, and the 4th water level is 1.25-1.3 times of the 5th water level.
Preferably, the 5th power is 1.7-1.9 times of the 4th power, the 4th power is 1.6-1.8 times of third power,
Third power is 1.5-1.7 times of the second power, and the second power is 1.3-1.5 times of the first power.
By the preferred of above-mentioned water level and pump power, especially by the setting of differential water level and pump power,
It can quickly realize the constant of water level, improve steam generation rate, save the time.It is found through experiments that, can be improved 12-
16% or so steam output.
By the power of intelligent control water pump, to guarantee to meet the requirements in water level, excessively high or too low, Ke Yijin is avoided
The intelligence of one step raising system.
(4) control according to water level to heating power
Preferably, water level sensor, the water level sensor, electric heater and controller 7 are arranged in the drum 3
Data connection, the controller 7 is according to the heating power of the water level automatic controlled electric heater in the drum 3 of measurement.As excellent
Choosing, if water level is too low, controller if, which passes through control, to reduce the power of electric heater or directly closes the heating of electric heater,
To avoid causing further decreasing for water level because steam output caused by heating power is excessively high is excessive, if water level is excessively high,
Then by increasing the heating power of electric heater, steam output is improved, to reduce water level.
By above-mentioned setting, the too low dry combustion method for causing electric heater unit of water level is on the one hand avoided, electric heating is caused to fill
The damage set and generate safety accident, on the other hand, avoid because water level is excessively high and caused by water in drum it is excessive.
Preferably, when the water level of measurement be lower than the first water level when, controller 7 control electric heater unit with the first power into
Row heating；When the water level of measurement is lower than second water level lower than the first water level, controller 7 controls electric heater unit lower than the
Second power of one power is heated；When the water level of measurement is lower than the third water level lower than the second water level, controller 7 is controlled
Electric heater unit is heated with the third power lower than the second power；When the water level of measurement is lower than the lower than third water level the 4th
When water level, controller 7 is controlled electric heater unit and is heated with the 4th power lower than third power；When the water level of measurement is lower than
When lower than the 4th water level five water level, controller 7 is controlled electric heater unit and is added with the 5th power lower than the 4th power
Heat；When the water level of measurement is lower than six water level lower than the 5th water level, controller 7 controls electric heater unit and stops heating.
Preferably, the first water level is 1.1-1.3 times of the second water level, the second water level is 1.1-1.3 times of third water level,
Third water level is 1.1-1.3 times of the 4th water level, and the 4th water level is 1.1-1.3 times of the 5th water level.
Preferably, the first water level is 1.1-1.15 times of the second water level, the second water level is the 1.15-1.2 of third water level
Times, third water level is 1.2-1.25 times of the 4th water level, and the 4th water level is 1.25-1.3 times of the 5th water level.
Preferably, the first power is 1.6-1.7 times of the second power, the second power is 1.5-1.6 times of third power,
Third power is 1.4-1.5 times of the 4th power, and the 4th power is 1.3-1.4 times of the 5th power.
By the preferred of the power of above-mentioned water level and electric heater unit, filled especially by differential water level and electric heating
The setting for the power set, can quickly realize water level in scheduled home, and water level is excessively high when, can protect
Steam generation rate is demonstrate,proved, the time is saved.
(5) pressure controls
Preferably, pressure sensor is arranged in 3 top of drum, for measuring pressure in drum 3.The pressure sensing
7 data connection of device, electric heater unit and controller, the controller 7 are automatically controlled according to the pressure that pressure sensor measures
The heating power of electric heater unit.Preferably, if the pressure of pressure sensor measurement is lower than certain pressure, controller
7 control electric heater unit starting heating.If the temperature of pressure sensor measurement is higher than pressure upper limit, in order to avoid pressure mistake
It is big to generate dangerous, controller control electric heater unit stopping heating.
By so set, heating power can be adjusted according to the pressure in drum 3, to guarantee maximizing steam
In the case where output, guarantee the safety of steam generator.
Preferably, controller 7 controls electric heater unit if the pressure of pressure sensor measurement is lower than a certain numerical value
Improve heating power.If the temperature of pressure sensor measurement is higher than certain numerical value, in order to avoid the excessive generation of pressure is dangerous,
Controller, which controls electric heater unit, reduces heating power.
Preferably, controller 7 controls the heating power drop of electric heater unit when the pressure of measurement is higher than first pressure
It is heated as low as the first power；When the pressure of measurement is higher than the second pressure higher than first pressure, controller 7 controls electricity and adds
The heating power of thermal is reduced to second power lower than the first power to be heated；When the pressure of measurement is higher than than the second pressure
When the high third pressure of power, the heating power that controller 7 controls electric heater unit is reduced to the third power lower than the second power
It is heated；When the pressure of measurement is higher than four pressure higher than third pressure, controller 7 controls the heating of electric heater unit
Power is reduced to fourth power higher than third power to be heated；When the pressure of measurement is higher than fiveth pressure higher than the 4th pressure
When power, controller 7 stops the heating of electric heater unit.
Preferably, the 4th power is 0.4-0.6 times of third power, third power is 0.6-0.8 times of the second power,
Second power is 0.7-0.9 times of the first power.
Further preferably, preferably, the 4th power is 0.5 times of third power, third power is the 0.7 of the second power
Times, the second power is 0.8 times of the first power.
5th pressure is exactly pressure upper limit.
The upper position of drum is arranged in the pressure sensor.
Preferably, the pressure sensor be it is multiple, the pressure data of the controller foundation is multiple pressure sensings
The temperature of device measurement, to control the operation of steam generator.
(6) steam flow controls
Preferably, the steam outlet pipe road setting flow sensor, the steam for cooling water of units of measurement time output
Flow, 7 data connection of the flow sensor, electric heater and controller.The controller 7 is according to the unit of sensor measurement
The steam flow data of time output automatically control the heating power of electric heater unit.Preferably, if the steam of measurement
Flow is lower than certain numerical value, then controller 7 controls electric heater unit and heated or increased heating power.If pressure passes
The temperature of sensor measurement is higher than certain numerical value, and controller controls electric heater unit and reduces heating power or stop heating.
By so set, heating power, guarantee steam can be adjusted according to the quantity of steam that steam generator generates
Output quantity it is constant, avoid quantity too large or too small, cause quantity of steam insufficient or waste.
Preferably, controller 7 controls the heating power drop of electric heater unit when the flow of measurement is higher than first flow
It is heated as low as the first power；When the flow of measurement is higher than the second flow higher than first flow, controller 7 controls electricity and adds
The heating power of thermal is reduced to second power lower than the first power to be heated；When the flow of measurement is higher than than second
When measuring high third flow, the heating power that controller 7 controls electric heater unit is reduced to the third power lower than the second power
It is heated；When the flow of measurement is higher than four flow higher than third flow, controller 7 controls the heating of electric heater unit
Power is reduced to fourth power higher than third power to be heated；When the flow of measurement is higher than fiveth stream higher than the 4th flow
When amount, controller 7 stops the heating of electric heater unit.
Preferably, the 4th power is 0.4-0.6 times of third power, third power is 0.6-0.8 times of the second power,
Second power is 0.7-0.9 times of the first power.
Further preferably, preferably, the 4th power is 0.5 times of third power, third power is the 0.7 of the second power
Times, the second power is 0.8 times of the first power.
Further preferably, the 5th flow is 1.1-1.2 times of the 4th flow, and the 4th flow is the 1.2-1.3 of third flow
Times, third flow is 1.3-1.4 times of second flow, and second flow is 1.4-1.5 times of first flow.
By the preferred of the power of above-mentioned flow and electric heater unit, filled especially by differential flow and electric heating
The setting for the power set can quickly realize the constant of flow, save the time.
By so set, electric heating amount, guarantee steam can be adjusted according to the quantity of steam that steam generator generates
Output quantity it is constant, avoid quantity too large or too small, cause quantity of steam insufficient or waste, while waste heat can be saved
The energy.
The present invention can also be realized according to valve intelligent control steam generator.
1. embodiment one
It is improved as one, temperature sensor is set in the drum 3, for measuring the temperature of the steam in drum 3.
Inlet valve and steam valve, the temperature sensor, inlet valve is respectively set on the water inlet pipe 4 and steam (vapor) outlet 5 of drum 3
With steam valve and 7 data connection of central controller.Central controller 7 controls water inlet according to the temperature of temperature sensor measurement
The opening and closing of valve and steam valve and the size of aperture.
If the temperature of the steam in temperature sensor measurement drum 3 is lower than the numerical value of lower limit, central controller 7 is controlled
Inlet valve and steam valve are automatically closed, to guarantee that the steam in drum 3 continues heat temperature raising；If the drum 3 of measurement
The temperature of interior steam is more than the numerical value of the upper limit, then central controller 7 controls inlet valve and steam valve automatically opens.Pass through
Above-mentioned measure, can and guarantee drum 3 export steam temperature keep certain temperature, so as to reach utilizable temperature
Degree.
Preferably, the multiple temperature sensors of setting in the drum 3, measure steam by multiple temperature sensors
Temperature.
Preferably, central controller 7 is controlled by the average value of the temperature of the steam of multiple temperature sensor measurements
The opening and closing of inlet valve and steam valve.
Preferably, central controller 7 is controlled by the peak of the temperature of the steam of multiple temperature sensor measurements
The opening and closing of inlet valve and steam valve.By taking peak, the excessively high generation danger of temperature of the steam in drum 3 can be avoided
Danger.
Preferably, the position in drum 3 close to steam (vapor) outlet is arranged at least one described temperature sensor.
2. embodiment two
It is improved as one, the size that the central controller 7 passes through the aperture of control inlet valve and steam valve
Leaving water temperature to guarantee in drum reaches steady state value.Drum 3 is entered with the flow of drum 3 said is left by adjusting to adjust
The temperature of the steam of the steam (vapor) outlet of whole drum 3.
Outlet pipe temp sensor is set on the drum steam (vapor) outlet 5, and the outlet temperature sensor and center control
7 data connection of device, central controller 7 control the opening and closing of inlet valve and steam valve according to the temperature of temperature sensor measurement
And the size of aperture.
If the temperature of the steam of the outlet of temperature sensor measurement is lower than the numerical value of lower limit, central controller 7 is controlled
The aperture of steam valve processed increases, and reduces the aperture of water inlet valve, so that reduced into the water in drum 3, so that from
The steam opened in drum 3 increases, so that the discharge reduction in drum 3.Steam in drum 3 is improved by the reduction of water
Temperature, to improve the outlet temperature of drum 3.On the contrary, the temperature of the water of the outlet of temperature sensor measurement is higher than the upper limit
Numerical value, then 7 control valve 20 of central controller aperture reduce, increase the aperture of water inlet valve, so that into vapour
Water in packet 3 increases, so that the steam left in drum 3 is reduced, so that the water in drum 3 increases.Pass through water
Increase to reduce the temperature of water in drum 3, to reduce the outlet temperature of drum 3.By above-mentioned measure, can and guarantee drum
The temperature of the steam of 3 outputs is kept in a certain range, so as to reach utilizable temperature.
Preferably, multiple temperature sensors are arranged in the steam (vapor) outlet 5, vapour is measured by multiple temperature sensors
The temperature of the water of packet outlet pipe.
Preferably, the average value of the temperature for the water that central controller 7 is measured by multiple temperature sensors 19 controls
Steam valve, water inlet valve aperture size.
Preferably, the peak of the temperature for the water that central controller 7 is measured by multiple temperature sensors 19 controls
The aperture of steam valve, water inlet valve.By taking peak, it can guarantee the safety of drum.
Preferably, steam (vapor) outlet 5 is arranged in close to the position of drum 3 at least one described temperature sensor.
Preferably, it is 5-10 degrees Celsius, preferably 6-8 degrees Celsius that limit value, which subtracts lower numerical limit,.
3. embodiment three
As the further improvement of embodiment two, steam valve, water inlet pipe are controlled by the temperature of water in measurement drum 3
The opening and closing of valve.
If the temperature of the water for the drum 3 that temperature sensor 19 measures is lower than the numerical value of lower limit, central controller 7 is controlled
The aperture of steam valve increases, and reduces the aperture of water inlet valve, so that reducing into the water in drum 3, so that leaving
Steam in drum 3 increases, so that the discharge reduction in drum 3.The temperature of water in drum 3 is improved by the reduction of water
Degree, to improve the outlet temperature of drum 3.On the contrary, the temperature of the water in the drum 3 of temperature sensor measurement is higher than the number of the upper limit
Value, the then aperture that central controller 7 controls steam valve are reduced, and increase the aperture of water inlet valve, so that into drum 3
Interior water increases, so that the steam left in drum 3 is reduced, so that the water in drum 3 increases.Pass through the increase of water
The temperature of water in drum 3 is reduced, to reduce the outlet temperature of drum 3.By above-mentioned measure, can and guarantee in drum 3
Water temperature keep in a certain range, to guarantee that steam can reach utilizable temperature.
Preferably, the multiple temperature sensors of setting in the drum 3, measure water by multiple temperature sensors
Temperature.
Preferably, central controller 7 controls steaming by the average value of the temperature of the water of multiple temperature sensor measurements
The aperture of steam valve door, water inlet valve.
Preferably, central controller 7 controls steaming by the minimum of the temperature of the water of multiple temperature sensor measurements
The aperture of steam valve door, water inlet valve.By taking minimum, it can guarantee the temperature of the water of all positions in drum 3 all
Utilizable temperature can be reached.
Preferably, it is 8-13 degrees Celsius, preferably 9-11 degrees Celsius that limit value, which subtracts lower numerical limit,.
Preferably, the bottom of drum is arranged in the temperature sensor.
4. example IV
It is improved as one, water-level gauge, 7 data connection of the water-level gauge and central controller is set in the drum 3.
The height of central controller level monitoring is to control the size of the aperture of steam valve, water inlet valve.
By the height of level monitoring, avoid the water level in drum too low, thus cause 3 release end of heat of heat pipe that can not radiate,
It causes heat pipe to damage, while avoiding the water level in drum 3 excessively high, to cause pressure in drum excessive, especially boiled in heating
In the case where rising.
If the water level of the drum 3 of water-level gauge measurement is higher than the numerical value of the upper limit, central controller 7 controls steam valve
Aperture increases, and reduces the aperture of water inlet valve, so that reducing into the water in drum 3, so that leaving the steaming in drum 3
Vapour increases, so that the discharge reduction in drum 3.The water level of water in drum 3 is reduced by the reduction of water.On the contrary, water
Water level in the drum 3 of position meter measurement is lower than the numerical value of lower limit, then the aperture that central controller 7 controls steam valve is reduced, and increases
The aperture of aqueduct valve is added, so that increase into the water in drum 3, so that the steam left in drum 3 is reduced, thus
So that the water in drum 3 increases.
Preferably, the limit value of water level be drum volume 40%-45% where height, preferably 43%.
Preferably, the lower numerical limit of water level is that 1 release end of heat 10 of thermal-collecting tube protrudes into the height in drum.To guarantee drum
In water cover release end of heat comprehensively.
5. embodiment five
Embodiment is fifth is that the improvement combined to embodiment one, example IV.
If the temperature of the water in temperature sensor measurement drum 3 is lower than the numerical value of lower limit, at this time 7 basis of central controller
The water level of the water-level gauge measurement of monitoring automatically controls the opening and closing of steam valve, water inlet valve, and concrete measure is as follows:
The water level for the water-level gauge measurement that central controller 7 monitors is higher than lower limit value and is lower than upper limit value, then center control
Device 7 is controlled to be automatically closed into steam valve, water inlet valve, to guarantee that the water in drum 3 continues heat temperature raising；
The water level for the water-level gauge measurement that central controller 7 monitors is lower than lower limit value, then central controller 7 controls steam valve
It is automatically closed, water inlet valve continues to open, to guarantee that water continues to flow into drum 3, when the water level that central controller 7 monitors
The water level of meter measurement is at or above lower limit value, then central controller 7 controls water inlet valve and is automatically closed；
The water level for the water-level gauge measurement that central controller 7 monitors is higher than upper limit value, then central controller 7 controls steam valve
Continue to open, water inlet valve is automatically closed, to guarantee that water continues to flow out drum 3, when the water-level gauge that central controller 7 monitors
The water level of measurement is equal to or less than upper limit value, then central controller 7 controls steam valve and is automatically closed.
As soon as remaining feature is identical as embodiment, embodiment five, no longer describe one by one.
6. embodiment six
Embodiment is sixth is that the improvement combined to embodiment two, example IV.
If the temperature of the water of the outlet of temperature sensor measurement is lower than the numerical value of lower limit, central controller 7 is according to prison
The water level of the water-level gauge measurement of control automatically controls the aperture of steam valve, water inlet valve, and concrete measure is as follows:
The water level for the water-level gauge measurement that central controller 7 monitors is lower than upper limit value, then central controller 7 controls steam valve
Aperture increase, reduce the aperture of water inlet valve so that into drum 3 water reduce so that leaving in drum 3
Water increases, so that the discharge reduction in drum 3, if the water level in drum 3 is reduced to lower limit value or close to lower limit value,
Then central controller controls steam valve, water inlet valve are closed；
The water level for the water-level gauge measurement that central controller 7 monitors is lower than lower limit value, then central controller 7 controls steam valve
It closes, is simultaneously emitted by alarm；Show the water temperature that cannot achieve needs at present at this time, reason may be intensity of illumination not enough or its
His reason, to remind operator to pay attention to.
If the temperature of the water of the outlet of temperature sensor measurement is higher than the numerical value of the upper limit, central controller 7 is according to prison
The water level of the water-level gauge measurement of control automatically controls the aperture of steam valve, water inlet valve, and concrete measure is as follows:
The water level for the water-level gauge measurement that central controller 7 monitors is lower than upper limit value, then central controller 7 controls steam valve
Aperture reduce, increase the aperture of water inlet valve so that into drum 3 water increase so that leaving in drum 3
Water is reduced, so that the water in drum 3 increases；If the water level in drum 3 increases to upper limit value or close to upper limit value,
Then central controller controls steam valve, water inlet valve are closed；
The water level for the water-level gauge measurement that central controller 7 monitors is higher than upper limit value, then the control of central controller 7 water inlet pipe valve
Door is closed, and alarm is simultaneously emitted by；Show the water temperature that cannot achieve needs at present at this time, reason may be setting water temperature it is too low or
Other reasons, to remind operator to pay attention to.
As soon as remaining feature is identical as embodiment, embodiment five, no longer describe one by one.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention
When being defined by the scope defined by the claims..
Claims (2)
1. a kind of solar steam generator, including reflecting mirror and drum, the drum is located at the focal position of reflecting mirror, described
Solar energy reflection is used to heat the water in drum by reflecting mirror to drum, which is characterized in that inside steam drum is arranged from drum bottom
Start the heat pipe upwardly extended, the heat pipe is more, and communicating pipe is arranged between at least two adjacent heat pipes；From heat pipe lower part
To heat pipe top, the spacing of communicating pipe is continuously increased.
2. solar steam generator as described in claim 1, from heat pipe lower part to heat pipe top, the spacing of communicating pipe is continuous
Increased amplitude is increasing.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910844997.1A CN110529833B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator with variable heat pipe distribution |
| CN201910844993.3A CN110542069B (en) | 2018-04-20 | 2018-10-18 | Solar energy steam generator of intelligence position control |
| CN201910844985.9A CN110542068B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator of intelligence flow control |
| CN201910844996.7A CN110542070B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator of intelligence control by temperature change |
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| CN2018103587561 | 2018-04-20 | ||
| CN201810358756.1A CN108561865A (en) | 2018-04-20 | 2018-04-20 | A kind of solar steam generator of connection tube spacing variation |
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| CN201910844993.3A Division CN110542069B (en) | 2018-04-20 | 2018-10-18 | Solar energy steam generator of intelligence position control |
| CN201910844996.7A Division CN110542070B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator of intelligence control by temperature change |
| CN201910844985.9A Division CN110542068B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator of intelligence flow control |
| CN201910844997.1A Division CN110529833B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator with variable heat pipe distribution |
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| CN201910844985.9A Active CN110542068B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator of intelligence flow control |
| CN201910844997.1A Active CN110529833B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator with variable heat pipe distribution |
| CN201811212247.4A Active CN109404871B (en) | 2018-04-20 | 2018-10-18 | A kind of solar steam generator of connection tube spacing variation |
| CN201910844996.7A Active CN110542070B (en) | 2018-04-20 | 2018-10-18 | Solar steam generator of intelligence control by temperature change |
| CN201910844993.3A Active CN110542069B (en) | 2018-04-20 | 2018-10-18 | Solar energy steam generator of intelligence position control |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109404871A (en) | 2019-03-01 |
| CN110542068A (en) | 2019-12-06 |
| CN110542070B (en) | 2020-08-21 |
| CN110529833B (en) | 2020-10-23 |
| CN110542069B (en) | 2020-08-28 |
| CN110542069A (en) | 2019-12-06 |
| CN110529833A (en) | 2019-12-03 |
| CN110542068B (en) | 2020-10-27 |
| CN110542070A (en) | 2019-12-06 |
| CN108561865A (en) | 2018-09-21 |
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