CN205536554U - Take heat storage water tank of heat exchanger - Google Patents
Take heat storage water tank of heat exchanger Download PDFInfo
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- CN205536554U CN205536554U CN201620288595.XU CN201620288595U CN205536554U CN 205536554 U CN205536554 U CN 205536554U CN 201620288595 U CN201620288595 U CN 201620288595U CN 205536554 U CN205536554 U CN 205536554U
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- heat exchange
- coil pipe
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Abstract
The utility model relates to a take heat storage water tank of heat exchanger belongs to water heater technical field. This heat storage water tank is including having the water container for water heater inner bag of tube socket and installing in inner water tank's heat exchange coil, heat exchange coil has spiral heat transfer section and connects the straight tube construction section at both ends, the straight tube construction section alternates in the tube socket that corresponds sealedly fixed, straight tube construction section in contact with water position and spiral heat transfer section surface or internal surface cover there is special fluorine dragon anticorrosive coating. The utility model discloses a scribbling special fluorine dragon anticorrosive coating on heat exchange coil, can not only solving coil pipe corrosion problems, scribble special fluorine dragon anticorrosive coating coil pipe moreover and compare with the coil pipe of enamel coating anticorrosive coating, the heat conductivility can promote more than 70%, therefore the intensification of the same coil pipe size lower header is faster, and entire system is more energy -conserving. Special fluorine dragon anticorrosion coating sintering temperature is about 380 DEG C in addition, has solved the problem of a large amount of cinders of enamel sintering appearance simultaneously, has prolonged the life of water heater.
Description
Technical field
This utility model relates to field of water heaters, especially relates to the heat storage water tank of a kind of band heat exchanger.
Background technology
The heat exchange form of enamel internal container of water-heater can be divided into built-in heat exchange and external heat exchanger, for built-in heat exchange shape
The water heater liner of formula, for avoiding corrosion, heat exchanger mostly needs to carry out enamel process.
Provided with enamel coil pipe surface compact enamel layer has isolated coil pipe matrix and water, is avoided that electrochemical corrosion, but enamel is
Low thermal conductivity material, owing to enamel technology determines that the thickness of enamel layer is 150 μm-500 μm, average out to 300 μm, the application of slip sinters
After coil pipe heat conductivity be substantially reduced, for reaching same heat transfer effect, producer have to lengthen coil lengths, not only material become
This increase, and coil pipe lengthens the resistance increasing heat transferring medium, affects the operation of whole system.
For steel disk pipe, if only at the most unilateral enamel of coil-pipe water tank heat exchange side application of slip sintering, then steel pipe heat transferring medium
Flow side can produce a large amount of oxide skin, during water tank uses, owing to the alternating hot and cold of water temperature and heat exchange medium temperature is led
Cause oxide skin comes off, and affects heat transferring medium system and runs.
Utility model content
The purpose of this utility model is: proposes one and can not only solve coil pipe etching problem, and heat conductivility is more preferably
The heat storage water tank of band heat exchanger.
In order to reach object above, the heat storage water tank of this utility model band heat exchanger includes the water-heater water tank with base
Inner bag and be installed on the heat exchange coil of inner water tank, described heat exchange coil has spiral heat exchanging segment and is connected to the straight tube at two ends
Construction section, described straight tube construction section be interspersed in the base of correspondence seals fixing, described straight tube construction section and water contact site with
And spiral heat exchanging segment outer surface is or/and inner surface is coated with Teflon anticorrosive coat.
One end cylindrical of described base seals with inner water tank outer surface and welds, and the other end end face of base is installed with straight tube
Section outer surface seals welding.
This utility model, by being coated with Teflon anticorrosive coat on heat exchange coil matrix, can not only solve heat exchange coil corrosion and ask
Topic, and be coated with Teflon anticorrosive coat heat exchange coil compared with the heat exchange coil of enamel coating anticorrosive coat, heat conductivility can promote 70% with
On, thus identical coil size lower header heats up faster, whole system is more energy-conservation.Additionally Teflon corrosion-inhibiting coating sintering temperature
It is about 380 DEG C, solves heat exchange coil one side enamel firing simultaneously and bear the problem of now a large amount of oxide skins, extend making of water heater
Use the life-span.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of this utility model.
Fig. 2 is structure for amplifying schematic diagram at the A of Fig. 1.
Fig. 3 is structure for amplifying schematic diagram at the B of Fig. 1.
1. base, 2. inner water tank, 3. heat exchange coil, 3-1. spiral heat exchanging segment, 3-2. straight tube construction section, 4. special
Fluorine dragon anticorrosive coat.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
Embodiment one
The heat storage water tank basic structure of the present embodiment band heat exchanger as shown in Figure 1, 2, 3, including the water heater with base 1
Inner water tank 2 and be installed on the heat exchange coil 3 of inner water tank, described heat exchange coil 3 has spiral heat exchanging segment 3-1 and two ends
Straight tube construction section 3-2；Described straight tube construction section 3-2 is interspersed in the base 1 of correspondence；One end of described base 1 and water
Case inner bag 2 outer surface seals welding, and the other end of base 1 seals with straight tube construction section 3-2 and welds；Reach to fix each other
Purpose, straight tube construction section 3-2 and water contact site and spiral heat exchanging segment 3-1 outer surface (i.e. water tank heat exchange side) are or/and interior table
Face (i.e. high temperature heat transferring medium flowing side) is coated with Teflon anticorrosive coat 4.
During work, the water in liner for water tank of water heater and the high temperature heat transferring medium heat exchange liter by flowing in heat exchange coil
Temperature, as a example by the carbon steel coil-pipe water tank heat exchange side application of slip the most unilateral enamel theory analysis of sintering structure, outer diameter of steel pipes do=32mm, internal diameter
Di=28mm, heat conductivity is λ steel=50W/ (m*K), if heat exchange coil is coated with Teflon anticorrosive coat, Teflon in water tank heat exchange side spray
Average coating thickness is δ=25 μm, and mean coefficient of heat conductivity is λ=0.2W/ (m*K), and common enamel anticorrosive coat thickness is 300 μm, flat
All heat conductivitys are λ=1W/ (m*K).
Unilateral anticorrosion coil pipe total heat conductivity computational methods are as follows:
First coil pipe entire thermal resistance R is calculated total,
R total coil pipe entire thermal resistance, m*K/W；
R steel steel pipe thermal resistance, m*K/W；
R coating layer thermal resistance, m*K/W；
Coil pipe total heat conductivity λ is calculated total according to entire thermal resistance,
Respectively steel pipe, Teflon, the heat conductivity of enamel and thickness are substituted into above-mentioned formula to calculate, show that painting Teflon is prevented
The comprehensive heat conductivity of coil pipe of rotten layer is 12.9W/ (m*K), and the comprehensive heat conductivity of coil pipe of enamel coating anticorrosive coat is 7.2W/ (m*
K), the coefficient of heat transfer improves 79.2% relatively.The steel pipe coefficient of heat transfer being coated with Teflon anticorrosive coat significantly improves, and water tank heats up faster, whole
Individual system is more energy-conservation.
As a example by carbon steel coil pipe medial and lateral application of slip theory analysis, it is assumed that inside and outside anticorrosive coat consistency of thickness, then bilateral anticorrosion
Coil pipe total heat conductivity computational methods are as follows:
First coil pipe entire thermal resistance R is calculated total,
R total coil pipe entire thermal resistance, m*K/W；
R steel steel pipe thermal resistance, m*K/W；
Heat transferring medium side coating resistance, m*K/W it is coated with in R；
Water tank heat exchange side coating resistance, m*K/W it is coated with outside R；
Coil pipe total heat conductivity λ is calculated total according to entire thermal resistance,
Respectively steel pipe, Teflon, the heat conductivity of enamel and thickness are substituted into above-mentioned formula to calculate, show that coil pipe is at water tank
The comprehensive heat conductivity of coil pipe of heat exchange side and high temperature heat transferring medium flowing side equal enamel coating anticorrosive coat is 4W/ (m*K)；Coil pipe is at water
The comprehensive heat conductivity of coil pipe of the equal spraying corrosion resistant coating in case heat exchange side and high temperature heat transferring medium flowing side is 7.1W/ (m*K), heat exchange system
Number improves 74% relatively.Bilateral is coated with the heat exchange property absolute advantages of Teflon anticorrosive coat coil pipe in bilateral enamel coating anticorrosive coat coil pipe.
Practice have shown that, there is oxide skin problem in coil pipe one side enamel anticorrosion, and provided with enamel coil pipe sintering temperature is 850 DEG C, steel pipe
Heat transferring medium flowing side sinters at this temperature ten minutes and will produce a large amount of oxide skin, and this oxide skin will not take off at normal temperatures
Fall, not only can reduce heat exchange efficiency, and during water tank uses, due to water temperature and the cold and hot friendship of heat exchange medium temperature
Becoming, steel pipe heat transferring medium flowing side oxide skin comes off, and a large amount of oxide skins affect heat transferring medium system and run.Therefore water tank producer is not
Obtain and do not use bilateral enamel mode, complex manufacturing.And Teflon corrosion-inhibiting coating sintering temperature is about 380 DEG C, this temperature of steel pipe
The lower long-time sintering of degree will not produce oxide skin, and therefore spraying Teflon anticorrosive coat solves steel disk pipe one side anticorrosion oxide skin and asks
Topic.
Coil pipe is coated with Teflon anticorrosion and too increases smoothness, will not collect scaling, it is possible to long-term holding high efficient heat exchanging effect.
Claims (2)
1. a heat storage water tank for band heat exchanger, including having the liner for water tank of water heater of base and being installed on inner water tank
Heat exchange coil, described heat exchange coil has spiral heat exchanging segment and be connected to the straight tube construction section at two ends, it is characterised in that: described directly
Pipe construction section is interspersed in the base of correspondence to seal and fixes, outside described straight tube construction section is with water contact site and spiral heat exchanging segment
Surface is or/and inner surface is coated with Teflon anticorrosive coat.
The heat storage water tank of band heat exchanger the most according to claim 1, it is characterised in that: one end cylindrical of described base and water
Case outer surface of liner seals welding, and the other end end face of base seals with straight tube construction section outer surface and welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288595.XU CN205536554U (en) | 2016-04-09 | 2016-04-09 | Take heat storage water tank of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288595.XU CN205536554U (en) | 2016-04-09 | 2016-04-09 | Take heat storage water tank of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205536554U true CN205536554U (en) | 2016-08-31 |
Family
ID=56790008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620288595.XU Active CN205536554U (en) | 2016-04-09 | 2016-04-09 | Take heat storage water tank of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205536554U (en) |
-
2016
- 2016-04-09 CN CN201620288595.XU patent/CN205536554U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |