CN108591991B - A kind of steam generator - Google Patents

A kind of steam generator Download PDF

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Publication number
CN108591991B
CN108591991B CN201810414763.9A CN201810414763A CN108591991B CN 108591991 B CN108591991 B CN 108591991B CN 201810414763 A CN201810414763 A CN 201810414763A CN 108591991 B CN108591991 B CN 108591991B
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China
Prior art keywords
heating tube
electric heating
cabinet
steam
electrically heated
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CN201810414763.9A
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Chinese (zh)
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CN108591991A (en
Inventor
黄雪涛
钟兵
王海霞
刘彦臣
智晋宁
姚峰林
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Shandong Jiaotong University
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Shandong Jiaotong University
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Priority to CN201810414763.9A priority Critical patent/CN108591991B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/28Methods of steam generation characterised by form of heating method in boilers heated electrically
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Abstract

The present invention provides a kind of steam generators for generating steam and hot water dual function, the steam generator includes cabinet, electric heating tube, cold water inlet, hot water outlet and steam (vapor) outlet, the electric heating tube is arranged in cabinet, the electric heating tube includes outer tube and the electric heater that is arranged in outer tube, the electric heating tube is vertical direction setting, intake tunnel is arranged in the electric heating tube lower part, guarantee that the water of cabinet is able to enter electric heating tube and is heated, the top of electric heating tube connects steam (vapor) outlet.The present invention devises the steam generator of Novel structure, can generate steam and hot water simultaneously, and the steam generator have the function of heating rapidly, it is uniformity of temperature profile, safe and reliable, improve heating efficiency.

Description

A kind of steam generator
Technical field
The present invention relates to boiler technology field more particularly to a kind of steam generators of Novel structure.
Background technique
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 Products Factory etc. Place.
Current steam generator mostly uses combustion gas or fuel Heating, and heating efficiency is low, and currently used electricity Hot steam generator is directly heated and is generated to the water in water tank to the bottom of storage tank using electrothermal tube setting mostly Steam.There is heating slowly, the low problem of the thermal efficiency in this electric heating steam generator.
As Chinese patent literature CN2071061U disclose it is a kind of for beauty, health care the effects of steam generating appliances, packet It includes metal electrode board and the shell made of heat resistant plastice, go out vapour cover board, interior panelling, flexible handle, metal electrode board is necessary Power on through power supply line, there are internal baffles in shell, it is suitable for reading to have vapour cover board out, there is socket slot that can insert with band outside shell bottom The flexible handle of mouth is connected.For another example a kind of improved electric-heating steam generation disclosed in Chinese patent literature CN2651594Y Device, for generating steam, including body cavity and electric heater, electric heater are placed in body cavity, are equipped in body cavity Partition separates cavity above and below, and upper cavity is vapor cavity, and lower chamber is heating water cavity, and partition is equipped with steaming hole;Partition There are 2-6 layers, form transition chamber between partition, the steaming hole on adjacent partition, which misplaces, to be arranged.Electric heater will heat in water cavity Water heating, steam is entered spare in vapor cavity by the transition chamber of partition and its formation.Disclosed in above-mentioned two patent document Electric heating steam generator, belong to such product.
Summary of the invention
The present invention aiming at the shortcomings in the prior art, provides a kind of Novel structure Multifunctional steam generator, provides simultaneously Hot water and steam, and the steam generator have the function of heating rapidly, it is uniformity of temperature profile, safe and reliable, improve plus The thermal efficiency.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of steam generator, the steam generator include cabinet, electric heating tube, cold water inlet, hot water outlet and steaming Vapor outlet, the electric heating tube are arranged in cabinet, and the electric heating tube includes outer tube and the electric heater that is arranged in outer tube, The electric heating tube is vertical direction setting, and the electric heating tube lower part is arranged intake tunnel, guarantees that the water of cabinet is able to enter Electric heating tube is heated, and the top of electric heating tube connects steam (vapor) outlet.
Preferably, the lower part of cabinet is arranged in the cold water inlet, the hot water outlet is located at the top of cabinet.
Preferably, exhaust outlet is arranged in the cabinet top.
Preferably, the cross section of the cabinet is circle, the cross section of the electric heating tube is round.
Preferably, the middle position of cabinet is arranged in the electric heating tube.
Preferably, the outer diameter of the outer tube of the electric heating tube is 0.3-0.45 times of the internal diameter of cabinet.
Preferably, intake tunnel is aperture.
Preferably, 50% or less cabinet water level is arranged in the aperture.
Preferably, the center setting center electrically heated rod axially of the electric heating tube and along center Electrically heated rod is arranged more from radial electrically heated rod on the radial direction electrically heated rod to the more root diameters radially extended to electrically heated rod Outwardly extending triangle cooling fin.
Preferably, the triangle cooling fin is right angled triangle cooling fin, shape short side at right angle is located at radial On bar, long side extends outwardly from radial bars;Multiple triangle cooling fins are set on each radial direction electrically heated rod, described multiple three Angle radiator piece is similar figures;
The opposite acute angle of the short side at the right angle is M, and the side length of the long side at right angle is L, phase on same radial direction electrically heated rod The adjacent distance of adjacent triangle cooling fin is S, then meets following require:
tan(M)=a*tan(S/L)3-b*(S/L)2+ c* (S/L)-d, wherein tan is trigonometric function, and a, b, c, d are ginsengs Number;
61.0<a<61.5,
60.0<b<60.5,
21 < c < 22,
2.2 < d < 2.3,4 < M < 35 °, preferably 8 < M < 25 °
0.18< S/L <0.38。
The present invention has the advantage that
1) steam generator that the present invention devises a kind of Novel structure can pass through a device by such structure Realize steam and hot water double action, structure is simple, and heating efficiency is high.
2) present invention is by the aperture of setting electric heating tube bottom along the distribution density in short transverse, area and more The setting of the spacing variation of rows of openings, further improves heating efficiency, improves the security performance of steam generator.
3) present invention devises new-type vertical tubular electric heating tube, and electric heating tube top is directly connected to steam (vapor) outlet, By such mechanism, heating efficiency can be further improved.
4) present invention devises electrical heating efficiency along the variation of short transverse, can further increase the safety of device Energy and heating properties.
5) present invention devises the electric heating tube of new-type interior heat radiating fin structure, passes through the triangle of Novel structure electric heating tube Cooling fin increases the disturbance of heating surface (area) (HS and fluid, improves heating effect.
6) present invention passes through numerical simulation and many experiments, it is determined that the optimal relationship of interior cooling fin further increases Heating effect, is also related to providing an optimal reference frame for the electric heating tube of such structure.
Detailed description of the invention:
Fig. 1 is the steam generator preferred structure schematic diagram that the present invention generates hot water and steam.
Fig. 2 is the steam generator preferred structure schematic diagram for only generating steam of the invention.
Fig. 3 is electric heating tube Structure of cross section schematic diagram.
Fig. 4 is heat sink sizes schematic diagram in electric heating tube.
Fig. 5 is electric heating tube longitudinal direction section schematic diagram.
In figure: 1- cabinet;2- electric heating tube;3- cold water inlet;4- hot water outlet;5- steam (vapor) outlet;6- exhaust outlet;
21- outer tube;22- radial direction electrically heated rod;23- triangle cooling fin;The center 24- electrically heated rod;25- aperture
Specific embodiment
Fig. 1-5 illustrates a kind of steam generator.As shown in Figure 1, the steam generator includes cabinet 1, electric heating tube 2, the lower part of cabinet 1 is arranged in cold water inlet 3, hot water outlet 4 and steam (vapor) outlet 5, the cold water inlet 3, and the hot water goes out 4 mouthfuls Positioned at the top of 1 body of case.The electric heating tube 2 is arranged in cabinet, the electric heating tube 2 be vertical direction setting (perpendicular to The setting of water tank bottom plane), electric heating tube 2 includes outer tube 21 and the electric heater being arranged in outer tube 21, the electric heating tube 2 Intake tunnel is arranged in lower part, guarantees that the water of cabinet 1 is able to enter electric heating tube 2 and is heated, and the top of electric heating tube 2, which connects, steams Vapor outlet 5.
Preferably, the outer tube of 5 pipeline of steam (vapor) outlet and electric heating tube 2 is to be tightly connected.
Preferably, the outer diameter of 5 pipeline of steam (vapor) outlet is less than the outer diameter of the outer tube of electric heating tube 2.It can guarantee to steam in this way The vapour velocity of discharge.
Cold water enters cabinet by cold water inlet 3.When being worked, electric heating tube 2 is arranged in cabinet 1, in cabinet 1 Water enters electric heating tube 2 by the aperture 25 on outer tube 21, is then heated in electric heating tube 2, the steaming generated after heating Vapour is discharged by steam (vapor) outlet 5.Meanwhile electric heating tube is while generating steam, while the intracorporal water of heater box, produces after heating Raw hot water can be utilized by hot water outlet.
By above-mentioned structure setting, steam and hot water can be generated simultaneously, so that function there are many steam generating appliances, Its range utilized is expanded, and the steam generated is directly discharged by the steam (vapor) outlet connecting with electric heating tube, because being Heat the water outside electric heating tube by outer tube 21, thus external water will not explosive evaporation, also ensure the safety of heating Property.
The present invention is vertical direction setting by electric heating tube 2, can to heat water in the vertical direction, so that water exists Continuous heating in uphill process, the electric heating tube being arranged relative to horizontal direction, further improves heating efficiency.
It is improved as one, hot water outlet 4 can be removed, such as shown in Fig. 2, only using steam generator as one Generate the simple function evaporator of steam.
Preferably, exhaust outlet 6 is arranged in 1 top of cabinet.By the way that exhaust outlet 6 is arranged, 1 internal pressure of cabinet is avoided It is excessive, it is ensured that safety.
Preferably, the cross section of the cabinet is round.
Preferably, the cross section of the electric heating tube 2 is round.
Preferably, the middle position of cabinet is arranged in the electric heating tube 2.By so set, guaranteeing hot water heating Uniformity.
Preferably, the outer diameter of the outer tube 21 of the electric heating tube 2 is 0.3-0.45 times of the internal diameter of cabinet 1.Further Preferably 0.35-0.40 times.
Preferably, intake tunnel is strip slot.
Preferably, intake tunnel is aperture 25.As shown in Figure 5.It should be noted that be only schematic diagram in Fig. 5, though 1 or a rows of openings 25 for only showing setting in right Fig. 5 between adjacent electrically heated rod 22, actually not only limit to In one perhaps a row can be arranged on the upper and lower position between adjacent electrically heated rod 22 it is multiple or multiple rows of.
Preferably, 25 shape of aperture can be circle or rectangular.
Preferably, 50% or less 1 water level of cabinet is arranged in the aperture 25.By so set, can guarantee water energy Enough electric heating tubes 2 that timely enters are internally heated, while also avoiding aperture 25 from being arranged excessively high causes steam to overflow from aperture 25 Out, it avoids pressure in entire cabinet excessive, while the water of eminence also being avoided to enter in electric heating tube, the steam generated is caused to take The moisture of band is too many.
Preferably, along short transverse (i.e. direction from the bottom up, appear below along short transverse, if do not had Specified otherwise all refers to direction from the bottom up), the aperture 25 is set as multiple rows of.
It is multiple rows of by being arranged, it is ensured that different height and position water inlets avoids an independent position from intaking, causes to heat It is uneven, while the water avoided enter into is evaporated, and causes to dry up in heating tube.
Preferably, the distribution density of the aperture 25 is smaller and smaller along short transverse.The density that aperture 25 is distributed is got over It is next smaller, that is, mean the fewer and fewer of aperture distribution, the area of aperture is also just smaller and smaller.
By a large amount of numerical simulation and its experimental studies have found that, by setting aperture distribution density it is smaller and smaller, mainly The reason is that guaranteeing that most of water is heated in lower part, becomes constantly there is water to enter electric heating tube 2 in steam uphill process in water, hold Continuous heating.If lower part water inlet is few, lower part water fast vaporizing may cause, cause in electric heating tube 2 that pressure is excessive, cause The water in portion is also because pressure considerations cannot be introduced into electric heating tube.Reduce the dry of electric heating tube, while improving heating efficiency.
Further preferably, along short transverse, the amplitude that the distribution density of the aperture 25 is smaller and smaller constantly increases.
By largely testing and numerical simulation is by the variation of above-mentioned aperture distribution density to further increase Heating efficiency improves the output efficiency of steam, while can reduce dry in electric heating tube.
Preferably, the area of single aperture 25 is smaller and smaller along short transverse.Further preferably, along height side To the amplitude that the area of single aperture 25 is smaller and smaller constantly increases.Specific reason referring to 25 distribution density of aperture variation.
Preferably, the sum of area of every rows of openings 25 is smaller and smaller along short transverse.Preferably, along Short transverse, the smaller and smaller amplitude of the sum of area of every rows of openings 25 are continuously increased.Specific reason is divided referring to aperture 25 The variation of cloth density.
Preferably, the spacing between every rows of openings 25 is increasing along short transverse.Preferably, along Short transverse, the increasing amplitude of spacing between every rows of openings 25 are continuously increased.Specific reason is divided referring to aperture 25 The variation of cloth density.
Preferably, the center electrically heated rod 24 of 2 center of electric heating tube setting axially.
Preferably, the heating power of the unit length of electrically heated rod 24 is constantly reduced along short transverse.By setting The heating power for setting electrically heated rod 24 is constantly reduced, and guarantees that the fluid of lower part quickly heats, and then hot fluid passes through nature pair Top is flowed to, the fluid outside the fluid on top and the electric heating tube 2 of its underpart rapidly enters, and can further increase heating Efficiency.By largely testing and numerical simulation is by the variation of above-mentioned electric heater for heating power to further increase 10% or so heating efficiency saves heating time.
Preferably, along short transverse, the amplitude of the continuous reduction of the heating power of the unit length of electrically heated rod 24 It is continuous to increase.
By largely testing and numerical simulation can by the variation of above-mentioned 24 heating power amplitude of electrically heated rod 5% heating efficiency is further increased, further saves heating time.
Preferably, electrically heated rod 24 divides for multistage, along short transverse, the heating power of the unit length of different sections is not Together.Wherein along short transverse, the heating power of the unit length of different sections is constantly reduced.Further preferably, reduced width Degree is continuous to be increased.
Preferably, every section of length is identical.
Preferably, the heating power of every section of unit length is identical.
Specific reason is as above.
It is segmented by setting, it can be further such that being simple to manufacture conveniently.
The electric heating tube 2 is along center electrically heated rod 24 to the more root diameters radially extended to electrically heated rod 22, the diameter More are arranged on electrically heated rod 22 from the outwardly extending triangle cooling fin 23 of radial electrically heated rod 22.
The present invention is by being arranged radial electrically heated rod 22 and dissipating along the outwardly extending triangle of radial electrically heated rod 22 Backing 23 can be further improved heating efficiency, while increase heating surface (area) (HS, improve heating effect, and because setting triangle Shape cooling fin, by the triangular tip of the similar acicular texture of triangle cooling fin, so that the vapor bubbles generated are rising In the process, flow-disturbing can be further increased, bubble is cut, so that air pocket turns to smaller bubble, further promotes vapour-liquid Fusion, the heat exchange for promoting vapour-liquid are sufficiently mixed fluid, improve heating effect.
Further preferably, radial electrically heated rod cross section is rectangle, is preferably square.
Further preferably, radial electrically heated rod cross section is circle.
Preferably, the heating power of the radial electrically heated rod in unit length is 0.3-0.5 times of center electrically heated rod, Preferably 0.4 times.
Preferably, the radial electrically heated rod 22 is shaft, electric heating is extended to from the center of circle along radial The inner wall of pipe 21.
Preferably, multiple triangle cooling fins 23, multiple triangles are arranged on 22 on each radial direction electrically heated rod Shape cooling fin 23 is similar figures.Three interior angles in correspondence with each other of i.e. different triangle cooling fins are identical.
Preferably, from the center of electric heating tube 21 to the inside pipe wall of electric heating tube 21, the side length of triangle cooling fin 23 Or area is smaller and smaller.
Preferably, 22 two sides distribution triangle cooling fin 23 of radial electrically heated rod, triangle cooling fin 23 is along radial direction The center line of electrically heated rod 22 is symmetrical.
Preferably, adjacent the distance between the triangle cooling fin 23 of radial electrically heated rod 22 remains unchanged.
Preferably, from the center of electric heating tube 21 to radial direction, adjacent 22 triangle of radial electrically heated rod radiates Spacing between piece 23 constantly increases.
Constantly increased by the spacing between adjacent 22 triangle cooling fin 23 of radial electrically heated rod, can be made outer Fluid amount of flow big local fluid circulation space in portion's is big, can further decrease flow resistance, heating effect is kept not substantially Become.
Preferably, the triangle cooling fin 23 is right angled triangle cooling fin, shape short side at right angle is located at diameter To on electrically heated rod, long side extends outwardly from radial electrically heated rod.
Preferably, the radial direction electrically heated rod 22 is round bar, a diameter of 0.6-1.2mm, preferably 0.8mm.
Preferably, triangle cooling fin extends outwardly from the central plane of round bar.The triangle cooling fin is plate Structure.The slab construction is perpendicular to center electrically heated rod 24, and slab construction extended surface passes through the center line of round bar.
It is learnt by numerical analysis and experiment, adjacent triangle cooling fin spacing cannot be too big, then can greatly very much Cause cooling fin heat transfer area too small, augmentation of heat transfer effect is bad, but spacing can not be too small, and spacing is too small, causes in pipe Fluid circulation space is too small, and the resistance for causing steam to flow in pipe 2 is too big, and similarly, the apex angle of triangle cooling fin cannot be too Greatly, also will affect flow resistance if too big, and it is too big if to will lead to flow-disturbing effect bad, but can not be too small, too Heating surface (area) (HS is too small if small, also will affect heating effect.Therefore the present invention is come in terms of heating effect and flow resistance two It accounts for, therefore the present invention is through a large number of experiments, is preferentially meeting normal flow resistance (total pressure-bearing is 8Mpa or less) In the case where, so that being optimal of heating effect, has arranged the optimal relationship of parameters.
The opposite acute angle of the short side at the right angle is M, and the side length of the long side at right angle is L, on same radial direction electrically heated rod 22 The adjacent distance of adjacent triangle cooling fin is S, then meets following require:
tan(M)=a*tan(S/L)3-b*(S/L)2+ c* (S/L)-d, wherein tan is trigonometric function, and a, b, c, d are ginsengs Number;
61.0 < a < 61.5, preferably a=61.295,
60.0 <b < 60.5, preferably b=60.267,
21 < c < 22, preferably c=21.412,
2.2 < d < 2.3, preferably d=2.2734
4 < M < 35 °, preferably 8 < M < 25 °
0.18< S/L <0.38,0.25R<L<0.32 R。
R is the distance for being located at the midpoint on the side at place of axial cooling fin 22 from 2 center of circle of electric heating tube to right angled triangle.
Wherein adjacent distance S is between being located between the side at the place of axial cooling fin 22 with adjacent triangle cooling fin Away from;I.e. triangle cooling fin be located at the place of axial cooling fin 22 side rear end and rear triangular be located at axial cooling fin 22 The distance between the side front end at place.Referring specifically to the mark of Fig. 4.
Preferably, radial electrically heated rod 22 is set as 7-9 root, the angle formed between adjacent radial electrically heated rod 22 It is equal.Further preferably 8.
The side length L of the long side at right angle chooses being averaged for the side length of the long side at two right angles of adjacent triangle cooling fin Value.
Further preferably, the internal diameter of electric heating tube is 25-40mm.
Preferably, electric heating tube is straight tube.
Preferably, the heating power of steam generator is 2000-4000W, preferably 2500-3500W.
Preferably, electrically heated rod 24,22 is resistance heater, it is long to change unit by the diameter that resistance is arranged The variation of the heating power of degree.
Preferably, the distance between neighbouring radial electrically heated rod 22 is increasing along short transverse.Into one Preferably, along short transverse, the increasing amplitude of the distance between adjacent radial electrically heated rod 22 constantly increases step.
Preferably, the heating power of the unit length of different radial electrically heated rods 22 is increasingly along short transverse It is small.Further preferably, the smaller and smaller amplitude of different 22 unit length heating powers of radial electrically heated rod constantly increases.
By be arranged electrically heated rod 22 heating power in the height direction constantly reduce or the distance between it is more next It is bigger, guarantee that the fluid of lower part quickly heats, then hot fluid has arrived top, the fluid on top and its underpart by free convection Electric heating tube 2 outside fluid rapidly enter, heating efficiency can be further increased.By largely testing and Numerical-Mode It is quasi-, by the variation of above-mentioned electric heater for heating power, 8-10% heating efficiency can be further increased, when saving heating Between.
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 (7)

1. a kind of steam generator, the steam generator includes cabinet, electric heating tube, cold water inlet, hot water outlet and steam Outlet, the electric heating tube are arranged in cabinet, and the electric heating tube includes outer tube and the electric heater that is arranged in outer tube, institute Electric heating tube is stated as vertical direction setting, the electric heating tube lower part is arranged intake tunnel, guarantees that the water of cabinet is able to enter electricity Heating tube is heated, and the top of electric heating tube connects steam (vapor) outlet;
The lower part of cabinet is arranged in the cold water inlet, and the hot water outlet is located at the top of the side of cabinet;
The center setting center electrically heated rod axially of the electric heating tube and along center electrically heated rod to diameter To more root diameters of extension to electrically heated rod, it is arranged more from radial electrically heated rod outwardly extending three on the radial direction electrically heated rod Angle radiator piece;
The triangle cooling fin is right angled triangle cooling fin, and shape short side at right angle is located in radial bars, and long side is from diameter Extend outwardly to bar;Multiple triangle cooling fins are set on each radial direction electrically heated rod, multiple triangle cooling fins are Similar figures;
The opposite acute angle of the short side at the right angle is M, and the side length of the long side at right angle is L, adjacent on same radial direction electrically heated rod The adjacent distance of triangle cooling fin is S, then meets following require:
tan(M)=a*tan(S/L)3-b*(S/L)2+ c* (S/L)-d, wherein tan is trigonometric function, and a, b, c, d are parameters;
61.0<a<61.5,
60.0<b<60.5,
21 < c < 22,
2.2 < d < 2.3,4 < M < 35 °,
0.18< S/L <0.38。
2. steam generator as described in claim 1, which is characterized in that exhaust outlet is arranged in the cabinet top.
3. steam generator as described in claim 1, which is characterized in that the cross section of the cabinet is round, the electricity The cross section of heating tube is round.
4. steam generator as claimed in claim 3, which is characterized in that the interposition of cabinet is arranged in the electric heating tube It sets.
5. steam generator as claimed in claim 3, which is characterized in that the outer diameter of the outer tube of the electric heating tube is cabinet 0.3-0.45 times of internal diameter.
6. steam generator as claimed in claim 3, which is characterized in that intake tunnel is aperture.
7. steam generator as claimed in claim 6, which is characterized in that 50% or less cabinet water level is arranged in the aperture.
CN201810414763.9A 2017-07-31 2017-07-31 A kind of steam generator Expired - Fee Related CN108591991B (en)

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CN201710635581.XA CN107314358B (en) 2017-07-31 2017-07-31 A kind of steam generator for generating steam and hot water dual function
CN201810414763.9A CN108591991B (en) 2017-07-31 2017-07-31 A kind of steam generator

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CN201810414762.4A Expired - Fee Related CN108679589B (en) 2017-07-31 2017-07-31 A kind of steam generator that intake tunnel is set
CN201810414763.9A Expired - Fee Related CN108591991B (en) 2017-07-31 2017-07-31 A kind of steam generator
CN201810415653.4A Expired - Fee Related CN108679590B (en) 2017-07-31 2017-07-31 A kind of steam generator being vertically arranged electric heater

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CN110067999B (en) * 2018-11-28 2020-06-30 山东交通学院 Design method of steam generator capable of heating in sections
CN110067996B (en) * 2018-11-28 2020-06-30 山东交通学院 Design method of steam generator with variable water inlet hole row spacing
CN111271698B (en) * 2018-11-28 2021-03-30 山东交通学院 Design method of steam generator with variable distribution density of water inlet channel
CN111810931B (en) * 2019-01-16 2022-04-08 山东北辰机电设备股份有限公司 Steam generator with variable area of communication hole
CN110388636B (en) * 2019-01-24 2021-06-25 中北大学 Method for intelligently controlling steam temperature through portable cloud terminal
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CN102777877A (en) * 2012-08-03 2012-11-14 梁首强 Method for quickly producing water vapor and steamed furnace using same
CN106402825B (en) * 2016-09-19 2018-04-17 青岛科技大学 A kind of steam generator of cell phone application intelligent temperature control

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CN108679589B (en) 2019-07-12
CN107314358A (en) 2017-11-03
CN108591991A (en) 2018-09-28
CN108679590B (en) 2019-07-09
CN107314358B (en) 2018-06-01
CN108679589A (en) 2018-10-19
CN108679590A (en) 2018-10-19

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