CN108534114A - A kind of high-efficient steam generator based on large area heat transfer - Google Patents
A kind of high-efficient steam generator based on large area heat transfer Download PDFInfo
- Publication number
- CN108534114A CN108534114A CN201810574961.1A CN201810574961A CN108534114A CN 108534114 A CN108534114 A CN 108534114A CN 201810574961 A CN201810574961 A CN 201810574961A CN 108534114 A CN108534114 A CN 108534114A
- Authority
- CN
- China
- Prior art keywords
- foam metal
- large area
- steam generator
- heat transfer
- area heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006260 foam Substances 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 54
- 229910052751 metal Inorganic materials 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 16
- 239000010865 sewage Substances 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
Landscapes
- 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)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a kind of high-efficient steam generators based on large area heat transfer, include shell and calandria with water inlet and gas outlet, it further include the foam metal being arranged in shell and below water inlet, it is the vapor generating cavity with gas outlet above the foam metal, the calandria is embedded in the foam metal and carries out steam generation for heating the foam metal；The high-efficient steam generator based on large area heat transfer of the present invention, flow can be dispersed in foam metal surface after entering housing cavity, it makes full use of and exchanges heat with the contact surface of foam metal, the thermal efficiency is obviously improved, and finally forms uniform, stable, continuous steam in gas outlet.
Description
Technical field
The present invention relates to steam generation technique fields, and in particular to a kind of high-efficiency steam generation based on large area heat transfer
Device.
Background technology
Steam generator has been widely used in steaming plant field as core component, certainly such as steam microwave oven, steam
Clean kitchen ventilator etc..The characteristics of Portable high-efficiency, increasingly becomes the prevailing characteristics of small household appliances, meanwhile, this also just sends out steam
The working space and steam quality of raw device propose higher demand.
To solve the above-mentioned problems, researcher proposes some efficient steam generators, such as publication number CN
The patent document of 107228349A discloses a kind of steam generator, the steam generator, includes " recessed " type outer shell and inner casing,
Inside and outside cylinder is connected to by pipeline so that the inner ring and outer ring of electromagnetic heater is heated to inside and outside cylinder simultaneously, and bee is arranged in inner casing
Nest shape shunts column, realizes making full use of for energy, effectively improves steam generation efficiency, but it is more demanding to processing technology, and
Volume is difficult to reduce.
In another example the patent document of publication number CN 103776009B discloses a kind of steam generator, the steam generator
Heated shell inner cavity setting W types heating tube and cast an entirety, small volume, while W types heating tube and flow and guide
The overlapping arrangement of partition board improves the thermal efficiency, but its internal structure is complicated, is easy fouling, nothing after casting so that flow is sufficiently heated
Method is dismantled, and the harder area of water quality is not suitable for.
In conclusion design it is a it is small, the thermal efficiency is high, the steam generator of scale removal is facilitated to become particularly significant.
Invention content
The present invention provides a kind of high-efficient steam generator based on large area heat transfer, have the small, thermal efficiency high and
The characteristics of facilitating scale removal.
A kind of high-efficient steam generator based on large area heat transfer, includes shell and heating with water inlet and gas outlet
Body further includes the foam metal being arranged in shell and below water inlet, is with gas outlet above the foam metal
Vapor generating cavity, the calandria is embedded in the foam metal and carries out steam generation for heating the foam metal.
The foam metal of the present invention fully absorbs the heat of the calandria, to heat the liquid of water inlet outflow, thermal effect
Rate is obviously improved.The face volume ratio of the foam metal is big, and water droplet is constantly crushed while heating, can shorten out steam
Time, while vapour-liquid can be achieved from separation by the arrangement of the foam metal.
The present invention is made full use of heating volume, is reduced steam liquid content using the mode of " water route is enterprising, and vapour road goes out ".
For the foam metal for being atomized liquid stream, heating atomization droplet is remarkably improved the efficiency of heating surface.
It refers to that calandria is in direct contact foam metal heating that the calandria, which is embedded in the foam metal, and embedded mode is very
It is more, including it is inserted into inside, it is enclosed in periphery etc..
In order to further increase evaporation efficiency, it is preferred that the porosity of the foam metal is 0.6~0.8.
For quick descaling, it is preferred that the housing bottom is equipped with sewage draining exit.The sewage outfalls setting is at the bottom of shell
The service life of the steam generator is improved for exhausting cleaning mixture in portion.Sewage draining exit needs that enclosed switch is arranged, for preventing
Only hot steam is escaped, and improves the thermal efficiency of heating.Enclosed switch can be opened when needing, and exhaust cleaning mixture in time, be used with improving
Service life.
In order to increase the contact area of flow and foam metal, it is preferred that the water inlet connection is mounted on steam generation
The liquid distribution trough of intracavitary.Liquid distribution trough is set to shunt the direct contact area increased and with the foam metal.
In order to improve gas phase ratio, it is preferred that the foam metal is upwardly extended close to the side of gas outlet in shell
Separate the gas outlet and vapor generating cavity.To form L-type structure, steam further adds close to the part of the gas outlet
Heat reduces the liquid content in mixture.
In order to facilitate manufacturing and install, it is preferred that the calandria is U-shaped heater, and the foam metal is divided into up and down
Two layers, the U-shaped heater is sandwiched between upper and lower two layers of foam metal.Steel wire may be used to be fixed.
Preferably, the foam metal uses nickel or copper product.Two kinds of foam metals are easily obtained, technical maturity, cost
Relatively low, the thermal conductivity of wherein copper is high, is conducive to improve outlet steam quality.
In order to facilitate dismounting and repair, it is preferred that the top surface of the shell opens setting, the end cap with sealing top surface.
Preferably, the ratio between height of the height of the foam metal and the vapor generating cavity is 0.5~0.7.It can be compared with
Meet vapor-liquid separation well and improves the purpose of outlet steam quality.
Beneficial effects of the present invention：
Liquid distribution trough is arranged in the high-efficient steam generator based on large area heat transfer of the present invention, the water inlet on shell,
So that flow can be dispersed in foam metal surface after entering housing cavity, the contact surface with metal foam is made full use of to change
Heat, the thermal efficiency are obviously improved, and finally form uniform, stable, continuous steam in gas outlet.
The high-efficient steam generator based on large area heat transfer of the present invention, U-shaped heater outer wrapping foam metal, greatly
Increase the heat exchange area of water and heater, it is ensured that steam can be generated rapidly, it is short to go out steaming time, small, light-weight, institute
It is L-type to state upper foam metal, has the ability for further increasing vapor-gas phase ratio.
The present invention based on large area heat transfer high-efficient steam generator, it is simple in structure, it is easy to disassemble, can clean immediately or
Replace foam metal.
The high-efficient steam generator based on large area heat transfer of the present invention, is arranged sewage draining exit, convenient for periodically (3~April, tool
Depending on stereoscopic water quality situation) cleaning, significantly improve the service life of the steam generator.
Description of the drawings
Fig. 1 is the internal structure schematic diagram for the high-efficient steam generator of the present invention to be conducted heat based on large area.
Fig. 2 is the stereochemical structure signal for the high-efficient steam generator (removing end cap) of the present invention to be conducted heat based on large area
Figure.
In attached drawing：
1, end cap；2, seal groove；3, water inlet；4, upper layer L-type foam metal；5, lower layer's foam metal；6, liquid distribution
Device；7, gas outlet；8, electrode；9, shell；10, U-shaped heater；11, sewage draining exit.
Specific implementation mode
As shown in Figure 1, the high-efficient steam generator based on large area heat transfer of the present embodiment includes shell 9, set on shell 9
Water inlet 3, gas outlet 7 and sewage draining exit 11 are set, water inlet 3 is connected with liquid distribution trough 6, and U-shaped heater is arranged in 9 inner cavity of shell
10, electrode 8 is located at 9 outer surface of shell, and U-shaped heater 10 is wrapped in by upper layer L-type foam metal 4 and lower layer's foam metal 5.Shell
Seal groove 2 is arranged in body 9 and 1 junction of end cap, and seal washer is arranged in seal groove 2.
When the work of the steam generator of the present embodiment, water, by liquid distribution trough 6, is evenly spread to from water inlet 3
The surface of layer L-type foam metal 4 and lower layer's foam metal 5, the upper layer L-type foam metal 4 heated by U-shaped heater 10 and lower layer
Foam metal 5 possesses great heat exchange area so that evenly dispersed water evaporates rapidly, and the thermal efficiency is promoted, and high-temperature steam is from going out
Gas port 7 uniformly and stably flows out.
When the steam generator of the present embodiment is in scale removal state, scale removal medium (such as citric acid) passes through liquid by water inlet 3
Body distributor 6 is dispersed in the surface of upper layer L-type foam metal 4 and lower layer's foam metal 5, the water for cleaning its surface
Dirt, cleaning mixture go downstream, and are flowed out after sewage draining exit 11.
When the steam generator of the present embodiment is in scale removal, water, by liquid distribution trough 6, is dispersed in by water inlet 3
The surface of foam metal 4 and 5, the scale removal medium for cleaning its surface, flow go downstream, are flowed out after sewage draining exit 11.
In conclusion the high-efficient steam generator based on large area heat transfer of the present embodiment has the following advantages：(1) shell
On water inlet be arranged liquid distribution trough 6 so that flow can be dispersed in foam metal surface after entering 9 inner cavity of shell,
It makes full use of and exchanges heat with the contact surface of foam metal, the thermal efficiency is obviously improved, and is finally formed in gas outlet uniform, stable, continuous
Steam.(2) 10 outer wrapping foam metal of U-shaped heater, greatly increases the heat exchange area of water and heater, it is ensured that can
It is rapid to generate steam, go out that steaming time is short, and small, light-weight, the upper foam metal is L-type, has and further increases
The ability of vapor-gas phase ratio.(3) overall structure is simple, easy to disassemble, can clean or replace immediately foam metal.(4) it is arranged
Sewage draining exit, convenient for periodically (3~April, specifically depending on water quality situation) cleaning, significantly improve the steam generator uses the longevity
Life.
The invention is not limited in above-mentioned specific embodiments, and it is not intended to limiting the invention, and all take is equal
The technical solution that the mode of replacement or equivalent transformation is obtained, all falls in protection scope of the present invention.
Claims (8)
1. a kind of high-efficient steam generator based on large area heat transfer, includes shell and heating with water inlet and gas outlet
Body, which is characterized in that further include the foam metal being arranged in shell and below water inlet, be above the foam metal
Vapor generating cavity with gas outlet, the calandria are embedded in the foam metal and carry out steam for heating the foam metal
Occur.
2. the high-efficient steam generator as described in claim 1 based on large area heat transfer, which is characterized in that the housing bottom
Equipped with sewage draining exit.
3. the high-efficient steam generator as described in claim 1 based on large area heat transfer, which is characterized in that the water inlet connects
Connect the liquid distribution trough mounted on steam generation intracavitary.
4. the high-efficient steam generator as described in claim 1 based on large area heat transfer, which is characterized in that the foam metal
It is upwardly extended close to the side of gas outlet and separates the gas outlet and vapor generating cavity in shell.
5. the high-efficient steam generator as described in claim 1 based on large area heat transfer, which is characterized in that the calandria is
U-shaped heater, the foam metal are divided into upper layer and lower layer, and the U-shaped heater is sandwiched between upper and lower two layers of foam metal.
6. the high-efficient steam generator as described in claim 1 based on large area heat transfer, which is characterized in that the foam metal
Using nickel or copper product.
7. the high-efficient steam generator as described in claim 1 based on large area heat transfer, which is characterized in that the top of the shell
Face opens setting, the end cap with sealing top surface.
8. the high-efficient steam generator as described in claim 1 based on large area heat transfer, which is characterized in that the foam metal
Height and the ratio between the height of the vapor generating cavity be 0.5~0.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574961.1A CN108534114A (en) | 2018-06-06 | 2018-06-06 | A kind of high-efficient steam generator based on large area heat transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574961.1A CN108534114A (en) | 2018-06-06 | 2018-06-06 | A kind of high-efficient steam generator based on large area heat transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108534114A true CN108534114A (en) | 2018-09-14 |
Family
ID=63470379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810574961.1A Pending CN108534114A (en) | 2018-06-06 | 2018-06-06 | A kind of high-efficient steam generator based on large area heat transfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108534114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556439A (en) * | 2019-01-10 | 2019-04-02 | 合肥职业技术学院 | A kind of waste heat recovering energy conserving environmental protection equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08121701A (en) * | 1994-10-24 | 1996-05-17 | Matsushita Electric Ind Co Ltd | Steam generator |
| JP2003336802A (en) * | 2002-05-20 | 2003-11-28 | Toyo Radiator Co Ltd | Steam generator |
| CN102927547A (en) * | 2012-11-06 | 2013-02-13 | 华北水利水电学院 | Heat pipe type organic working medium falling film evaporation low-temperature exhaust heat utilization system |
| CN105722439A (en) * | 2013-08-14 | 2016-06-29 | 德卢卡烤炉技术有限责任公司 | Vapor generator including wire mesh heating element |
| KR20180047995A (en) * | 2016-11-02 | 2018-05-10 | 선문대학교 산학협력단 | Multi-stage steam generator |
| CN208312341U (en) * | 2018-06-06 | 2019-01-01 | 浙江大学 | A kind of high-efficient steam generator based on large area heat transfer |
-
2018
- 2018-06-06 CN CN201810574961.1A patent/CN108534114A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08121701A (en) * | 1994-10-24 | 1996-05-17 | Matsushita Electric Ind Co Ltd | Steam generator |
| JP2003336802A (en) * | 2002-05-20 | 2003-11-28 | Toyo Radiator Co Ltd | Steam generator |
| CN102927547A (en) * | 2012-11-06 | 2013-02-13 | 华北水利水电学院 | Heat pipe type organic working medium falling film evaporation low-temperature exhaust heat utilization system |
| CN105722439A (en) * | 2013-08-14 | 2016-06-29 | 德卢卡烤炉技术有限责任公司 | Vapor generator including wire mesh heating element |
| KR20180047995A (en) * | 2016-11-02 | 2018-05-10 | 선문대학교 산학협력단 | Multi-stage steam generator |
| CN208312341U (en) * | 2018-06-06 | 2019-01-01 | 浙江大学 | A kind of high-efficient steam generator based on large area heat transfer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556439A (en) * | 2019-01-10 | 2019-04-02 | 合肥职业技术学院 | A kind of waste heat recovering energy conserving environmental protection equipment |
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