CN108775705B - Heating boiler capable of inhibiting scale - Google Patents
Heating boiler capable of inhibiting scale Download PDFInfo
- Publication number
- CN108775705B CN108775705B CN201810779774.7A CN201810779774A CN108775705B CN 108775705 B CN108775705 B CN 108775705B CN 201810779774 A CN201810779774 A CN 201810779774A CN 108775705 B CN108775705 B CN 108775705B
- Authority
- CN
- China
- Prior art keywords
- heating
- heating rod
- boiler
- sleeve
- corrosion
- 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.)
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Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 80
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims abstract description 59
- 230000007797 corrosion Effects 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 41
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
- F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of liquid heating, in particular to a heating boiler. A heating boiler capable of inhibiting scale comprises the following technical scheme: the anti-corrosion sleeve is sleeved outside the heating area of the heating rod, and a gap is reserved between the anti-corrosion sleeve and the heating rod; the bottom of the boiler shell is provided with an inlet, and the top of the boiler shell is provided with an outlet; the bottom of the anti-corrosion sleeve is connected with the inner wall of the boiler shell, so that the inlet and the outlet are communicated only through the gap between the anti-corrosion sleeve and the heating rod. According to the invention, the anti-corrosion sleeve is sleeved outside the heating area of the heating rod, so that fluid is discharged upwards through the gap between the anti-corrosion sleeve and the heating rod, the flow rate of the fluid is accelerated due to the fact that only a small gap is reserved between the anti-corrosion sleeve and the heating rod, the outer surface of the heating rod is flushed by the fluid, the surface of the heating rod is not easy to scale, meanwhile, forced convection is formed in the heating area of the heating rod due to the fact that the flow rate of the fluid is accelerated, and the heat exchange efficiency is remarkably improved.
Description
Technical Field
The invention relates to the technical field of liquid heating, in particular to a heating boiler.
Background
When the fluid in the boiler is heated, as shown in fig. 1, the electric heating rod is inserted into the fluid to be heated, and heat radiation of the heating rod is utilized to conduct heat to the fluid; when heating, the fluid is in a static state or a low-speed circulation state, and the heat transfer is slower.
In the running process of the boiler, calcium and magnesium ions in water are heated and decomposed and then are condensed on the metal surface of a heating rod with high temperature, and a thick scale layer is formed after a long time. When the scale is too much accumulated, the normal heating of the electric heating rod can be influenced, the heating time is prolonged when the electric heating rod is light, electricity is consumed, the heat energy conduction is not caused to crack the shell on the surface of the metal heating body when the electric heating rod is heavy, so that the electric heating rod is electrified in water, the use safety of a boiler is endangered, and even the danger of explosion of the boiler is caused.
Disclosure of Invention
The purpose of the invention is that: in order to solve the defects in the prior art, a scale-inhibiting heating boiler is provided.
The technical scheme of the invention is as follows: a scale-inhibiting heating boiler comprising: boiler shell, heating rod and anti-corrosion sleeve;
the anti-corrosion sleeve is sleeved outside the heating area of the heating rod, and a gap is reserved between the anti-corrosion sleeve and the heating rod;
the bottom of the boiler shell is provided with an inlet, and the top of the boiler shell is provided with an outlet; the bottom of the anti-corrosion sleeve is connected with the inner wall of the boiler shell, so that the inlet and the outlet are communicated only through the gap between the anti-corrosion sleeve and the heating rod.
The working principle is as follows: fluid enters the boiler shell through the inlet and is discharged upwards through a gap between the anti-corrosion sleeve and the heating rod, and as only a small gap is reserved between the anti-corrosion sleeve and the heating rod, the flow area of the fluid is rapidly reduced, so that the flow speed of the fluid is accelerated, the surface of the heating rod is not easy to scale due to the fact that the fluid flushes the outer surface of the heating rod, meanwhile, forced convection is formed in a heating area of the heating rod due to the fact that the flow speed of the fluid is accelerated, and the heat exchange efficiency is remarkably improved.
Furthermore, the scheme is further divided into two modes that the upper part of the anti-corrosion sleeve is connected with the inner wall of the boiler shell, and the upper part of the anti-corrosion sleeve is not connected with the inner wall of the boiler shell.
Under the condition that the upper part of the anti-corrosion sleeve is connected with the inner wall of the boiler shell, a cavity structure is formed between the anti-corrosion sleeve and the inner wall of the boiler shell; fluid passing through the gap between the corrosion protection sleeve and the heating rod is directly discharged from the outlet. Furthermore, the interior of the cavity structure between the anti-corrosion sleeve and the inner wall of the boiler shell can be vacuumized to form a vacuum area. The vacuum area is used as a heat insulation layer, so that heat dissipation is reduced.
And under the condition that the upper part of the anti-corrosion sleeve is not connected with the inner wall of the boiler shell, one part of fluid passing through a gap between the anti-corrosion sleeve and the heating rod is directly discharged from the outlet, and the other part of fluid is discharged between the inner wall of the boiler shell and the outer wall of the anti-corrosion sleeve. Because the interval between the inner wall of the boiler shell and the outer wall of the anti-corrosion sleeve is larger, compared with the fluid in the gap between the anti-corrosion sleeve and the heating rod, the fluid flow rate and the temperature are relatively lower, so that the fluid discharged into the gap between the inner wall of the boiler shell and the outer wall of the anti-corrosion sleeve is low-speed low-temperature fluid, and the low-speed low-temperature fluid isolates the fluid passing through the gap from the external environment, thereby playing a role in heat preservation.
In the above scheme, specifically, the anti-corrosion sleeve is sleeved on the sleeve with the outer side surface of the heating area of the heating rod being a smooth straight pipe, a corrugated pipe or other curved surfaces, and different curves are arranged on the sleeve surface, so that disturbance is generated when fluid passes through the surface, the heat exchange efficiency is improved, and the inner wall of the sleeve is not easy to scale.
In the above scheme, the anti-corrosion sleeve is specifically made of stainless steel or ceramic materials.
The beneficial effects are that: according to the invention, the anti-corrosion sleeve is sleeved outside the heating area of the heating rod, so that only a slight gap exists between the anti-corrosion sleeve and the heating rod, fluid enters the boiler shell through the inlet, and is discharged upwards through the gap between the anti-corrosion sleeve and the heating rod, the flow rate of the fluid is accelerated due to the fact that only the slight gap exists between the anti-corrosion sleeve and the heating rod, the outer surface of the heating rod is flushed by the fluid, the surface of the heating rod is not easy to scale, meanwhile, forced convection is formed in the heating area of the heating rod due to the fact that the flow rate of the fluid is accelerated, and the heat exchange efficiency is remarkably improved.
Drawings
FIG. 1 is a schematic view of a boiler according to the related art;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention;
wherein: 1-heating rod, 2-anti-corrosion sleeve, 3-boiler shell and 4-vacuum area.
Detailed Description
The invention will now be described in detail by way of example with reference to the accompanying drawings.
Example 1, a scale-inhibitable heating boiler, comprising: a boiler shell 3, a heating rod 1 and an anti-corrosion sleeve 2;
the anti-corrosion sleeve 2 is sleeved outside the heating area of the heating rod 1, and a gap is reserved between the anti-corrosion sleeve and the heating rod 1;
the bottom of the boiler shell 3 is provided with an inlet, and the top is provided with an outlet; the bottom of the anti-corrosion sleeve 2 is connected with the inner wall of the boiler shell 3, so that the inlet and the outlet are communicated only through the gap between the anti-corrosion sleeve 2 and the heating rod 1.
The working principle is as follows: fluid enters the boiler shell 3 through the inlet and is discharged upwards through a gap between the anti-corrosion sleeve 2 and the heating rod 1, and as only a small gap is reserved between the anti-corrosion sleeve 2 and the heating rod 1, the flow rate of the fluid is accelerated due to the rapid reduction of the flow area of the fluid, the surface of the heating rod 1 is not easy to scale due to the flushing of the outer surface of the heating rod 1 by the fluid, and meanwhile, forced convection is formed in a heating zone of the heating rod 1 due to the acceleration of the flow rate of the fluid, so that the heat exchange efficiency is remarkably improved.
In the embodiment 2, referring to fig. 2, further, on the basis of the embodiment 1, the upper portion of the anti-corrosion sleeve 2 is connected with the inner wall of the boiler shell 3, and a cavity structure is formed between the anti-corrosion sleeve 2 and the inner wall of the boiler shell 3; the fluid passing through the gap between the anti-corrosive sleeve 2 and the heating rod 1 is directly discharged from the outlet. Furthermore, a cavity structure formed between the anti-corrosion sleeve 2 and the inner wall of the boiler shell 3 can be vacuumized to form a vacuum area 4. The vacuum area 4 is used as a heat insulation layer, so that heat dissipation is reduced.
Example 3 with reference to fig. 3, further on the basis of example 1, the upper part of the anti-corrosion sleeve 2 is not connected with the inner wall of the boiler housing 3, and the fluid passing through the gap between the anti-corrosion sleeve 2 and the heating rod 1 is discharged from the outlet directly, and the other part is discharged between the inner wall of the boiler housing 3 and the outer wall of the anti-corrosion sleeve 2. Because the interval between the inner wall of the boiler shell 3 and the outer wall of the anti-corrosion sleeve 2 is larger, compared with the fluid in the gap between the anti-corrosion sleeve 2 and the heating rod 1, the fluid flow rate and the temperature are relatively lower, so that the fluid discharged between the inner wall of the boiler shell 3 and the outer wall of the anti-corrosion sleeve 2 is low-speed low-temperature fluid, and the low-speed low-temperature fluid isolates the fluid passing through the gap from the external environment, thereby playing a role of heat preservation.
Example 4 the corrosion protection sleeve 2 is further defined on the basis of examples 1 or 2 or 3:
the part of the anti-corrosion sleeve 2 sleeved on the heating area of the heating rod 1 is a sleeve with a smooth straight pipe, a corrugated pipe or other curved surfaces, and different curves are arranged on the sleeve surface, so that disturbance is generated when fluid passes through the surface, the heat exchange efficiency is improved, and the inner wall of the sleeve is not easy to scale.
The anti-corrosion sleeve 2 is made of stainless steel or ceramic material.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A scale-inhibiting heating boiler comprising: a boiler shell (3) and a heating rod (1); characterized in that it further comprises: a corrosion protection sleeve (2);
the anti-corrosion sleeve (2) is sleeved outside the heating area of the heating rod (1), and a gap is reserved between the anti-corrosion sleeve and the heating rod (1);
the bottom of the boiler shell (3) is provided with an inlet, and the top of the boiler shell is provided with an outlet; the bottom of the anti-corrosion sleeve (2) is connected with the inner wall of the boiler shell (3), so that the inlet and the outlet are communicated only through a gap between the anti-corrosion sleeve (2) and the heating rod (1);
the upper portion of anticorrosive sleeve pipe (2) with boiler casing (3) inner wall connection, anticorrosive sleeve pipe (2) with form the cavity structure between boiler casing (3) inner wall, to anticorrosive sleeve pipe (2) with the cavity structure inside between boiler casing (3) inner wall carries out the evacuation and handles, forms vacuum region (4).
2. A scale-inhibiting heating boiler as claimed in claim 1, wherein the outer surface of the anti-corrosion sleeve (2) which is sleeved on the heating zone of the heating rod (1) is a smooth straight tube or a corrugated tube.
3. A scale-inhibitable heating boiler according to claim 1 or 2, characterized in that the corrosion resistant sleeve (2) is made of stainless steel or ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779774.7A CN108775705B (en) | 2018-07-16 | 2018-07-16 | Heating boiler capable of inhibiting scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779774.7A CN108775705B (en) | 2018-07-16 | 2018-07-16 | Heating boiler capable of inhibiting scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108775705A CN108775705A (en) | 2018-11-09 |
| CN108775705B true CN108775705B (en) | 2024-02-13 |
Family
ID=64029895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779774.7A Active CN108775705B (en) | 2018-07-16 | 2018-07-16 | Heating boiler capable of inhibiting scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775705B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727587B (en) * | 2019-10-28 | 2022-05-03 | 广州汽车集团股份有限公司 | Coolant liquid temperature control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324423A1 (en) * | 1983-07-07 | 1985-01-17 | Karl-Eugen 8901 Dasing Bux | Water tank heater (immersion heater) |
| CN2589885Y (en) * | 2002-12-18 | 2003-12-03 | 河北阳光锅炉厂 | Backwater ejection hot-water boiler |
| CN201412948Y (en) * | 2009-05-27 | 2010-02-24 | 丹东大正机电设备科技有限公司 | Full-bath-heat-type electric hot water boiler |
| CN107543307A (en) * | 2017-06-26 | 2018-01-05 | 胡振华 | Low scale immediate heating type electric heater |
| CN208475621U (en) * | 2018-07-16 | 2019-02-05 | 北京福泰奥科技发展有限公司 | It is a kind of can scale inhibition heating boiler |
-
2018
- 2018-07-16 CN CN201810779774.7A patent/CN108775705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324423A1 (en) * | 1983-07-07 | 1985-01-17 | Karl-Eugen 8901 Dasing Bux | Water tank heater (immersion heater) |
| CN2589885Y (en) * | 2002-12-18 | 2003-12-03 | 河北阳光锅炉厂 | Backwater ejection hot-water boiler |
| CN201412948Y (en) * | 2009-05-27 | 2010-02-24 | 丹东大正机电设备科技有限公司 | Full-bath-heat-type electric hot water boiler |
| CN107543307A (en) * | 2017-06-26 | 2018-01-05 | 胡振华 | Low scale immediate heating type electric heater |
| CN208475621U (en) * | 2018-07-16 | 2019-02-05 | 北京福泰奥科技发展有限公司 | It is a kind of can scale inhibition heating boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108775705A (en) | 2018-11-09 |
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