CN204787181U - Milky white quartz glass tube electric heat liquid heater - Google Patents
Milky white quartz glass tube electric heat liquid heater Download PDFInfo
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- CN204787181U CN204787181U CN201520294410.1U CN201520294410U CN204787181U CN 204787181 U CN204787181 U CN 204787181U CN 201520294410 U CN201520294410 U CN 201520294410U CN 204787181 U CN204787181 U CN 204787181U
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- quartz glass
- glass tube
- milky white
- electric heating
- white quartz
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Abstract
The utility model provides a milky white quartz glass tube electric heat liquid heater, includes milky white quartz glass tube, electric heating body, electric heating body electrode, and milky white quartz glass tube's outer wall is provided with the electric heating body, and the electrode tip of electric heating body is equipped with horizontal metal electrode or vertical metal electrode, milky white quartz glass tube's pipe wall divide into two -layerly from inside to outside, and the inlayer be the weaker zone, the outer compacted zone that is, and there are surperficial emulsification ripples arris, outer wall smoothness in the inlayer surface by small bubble formation. It has a higher boiling heat transfer coefficient, greatly increased boiling heat transfer coefficient, improve the liquid rate of heating and the thermal efficiency, surface emulsification ripples arris can also reduce bubble volume, increase bubble density, reduces liquid vaporization in -process to the strong disturbance of pipe wall, improves the fail safe nature of product, reduces the risk that product in use bursts.
Description
Technical field
The utility model relates to a kind of electric heating liquid heater, and particularly a kind of milky white quartz glass tube that uses crosses the electric heating liquid heater of water base material as electric heating body.
Background technology
The kind of current heating liquid electric equipment products is a lot, as: coffee machine, boiled water machine, water dispenser, water heater, washing machine, Pediluvium apparatus etc., the kind of the electric heater of this series products has multiple, as: pot type, aluminium pressure-casting type, metal pipe type, transparent quartz glass tube formula etc., firing rate is fast, food hygiene grade is high, the many market shares of good insulation preformance advantage strengthen year by year because it possesses for transparent quartz glass tube formula liquid heater in recent years, is a good product favored very much.Transparent quartz glass tube formula liquid heater arranges electric heating body at the outer wall of pipe, by the liquid heated in pipe, due to currently used be the transparent quartz glass tube of optical grade, the inwall unusual light of pipe, inside pipe wall boiling heat transfer efficiency can be produced low during heating, cause inside pipe wall surface tension of liquid excessive, boiled temperature is larger, excessive to the disturbance of tube wall in vaporizing liquid process, there is the danger that tube wall explosion can occur in long-time use, prove through test, during the boiling of transparent quartz glass tube inner surface, critical heat flux density is only about 23.2W/cm2, these problems are never well solved.
And milky white quartz glass tube, be one in the fabrication process by quartzy tubulation process, retain a part of micro-bubble, and by a kind of special quartz glass tubular construction that drawing process is formed.Due to it in appearance gas bag structure hinder ght transmission, form milky color.Therefore, people's custom is called milky white quartz glass tube.Need in milky white quartz glass tube production technology in quartz solution, retain some micro-bubbles, naturally form emulsification ripple rib at body drawing process.Due to the weaker zone that the bubble after being filled with a large amount of stretchings in the milky white silica tube of this structure is formed, thus the intensity of this quartz glass tube is lower, not withstand voltage, easily fractures with cracked.Therefore common milky white silica tube is usually used as substandard products, or defective work, comparatively cheap.
Because milky white silica tube is due to corrosion-resistant, can near infrared light be converted to far red light, milky white silica tube, usually used as infrared radiation heater, as warmer uses.
Summary of the invention
The invention reside in the shortcoming overcoming prior art and exist, utilize the design feature of milky white silica tube, design that a kind of thermal efficiency is high, firing rate is fast, boiling heat transfer critical heat flux density is high, booster rate is extremely low, safety and sanitation, milky white quartz glass tube electric heating liquid heater that cost is low.
The present invention takes following technical scheme to realize above-mentioned purpose:
A kind of milky white quartz glass tube electric heating liquid heater, comprise milky white quartz glass tube, electric heating body, electric heating body electrode, the outer wall of milky white quartz glass tube is provided with electric heating body, the electrode tip of electric heating body is provided with lateral metal electrode configuration or vertical metal electrode, it is characterized in that: the tube wall of described milky white quartz glass tube from inside to outside, is divided into two-layer, internal layer is weaker zone, skin is compacted zone, and internal layer surface is formed with surfactant emulsion ripple rib by micro-bubble, and outer wall is smooth.
The described electric heating body be arranged on milky white quartz glass tube is jet printing type Electric radiant Heating Film or rare earth thick film heating or strip heater.
The quantity of the metal electrode of described electric heating body electrode tip is two or more.
The beneficial effect of above-mentioned design is: adopt above-mentioned inwall to have surfactant emulsion ripple rib, the milky white silica tube that outer wall is smooth, the contact angle of the surfactant emulsion ripple prismatic of inwall 0 or 90 degree of becoming and water, it is uneven, form loose structure, there is the highest boiling heat transfer coefficient, surface tension of liquid can be reduced, strengthen the area contacted with water, and easily condensation and formation minute bubbles, minute bubbles can depart from inner wall surface fast, reduce bubble volume, increase bubble density, therefore boiled temperature can be reduced, thus liquid in pipe heat transfer process is further strengthened.Measure through test, the critical heat flux density of boiling can reach about 82.5W/cm2, the quartz ampoule that heating area is identical, and more powerful Electric radiant Heating Film can be adopted to provide heat.It avoid in tube wall and form larger bubble, reduce in vaporizing liquid process, particularly air pocket is to the strong disturbance of tube wall, improves the security reliability of product, reduce the risk that product in use occurs to burst, when also can reduce heating, heating tube sends the noise of puff puff.
Milky white quartz glass tube electric heating liquid heater, can use the electric heating body of various ways, can be jet printing type Electric radiant Heating Film, rare earth thick film heating, strip heater, can select according to application scenario and cost requirement.Design the quantity of the metal electrode of electric heating body electrode tip according to the operating voltage used, high voltage is with two, and low-voltage with 3 (two groups of electric heaters are in parallel), can use under facilitating multiple situation.Conventional electric heating body caliber, much smaller than pipe range, so the metal electrode of electrode tip is generally horizontally set, vertically can arrange metal electrode when the thicker length of caliber is shorter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model two metal electrode.
Fig. 2 is the structural representation of the utility model three metal electrode.
Fig. 3 is cross sectional representation of the present utility model.
Fig. 4 is the milky white quartz glass tube electric heating element that common weaker zone is thicker.
Fig. 5 is the milky white quartz glass tube electric heating element after improving.
Fig. 6 is B place enlarged drawing in Fig. 1.
Detailed description of the invention
Structure and the course of work of the utility model embodiment are described below in conjunction with accompanying drawing.
A kind of milky white quartz glass tube electric heating liquid heater, it is made up of milky white quartz glass tube 1, electric heating body 2, electric heating body electrode 4.What milky white quartz glass tube 1 adopted is finished product infrared radiation heater milky white quartz glass tube.The tube wall of described milky white quartz glass tube from inside to outside, is divided into two-layer, and internal layer is weaker zone 11, and skin is compacted zone 12, and outer wall is smooth.Its internal layer surface has micro-bubble to be formed with surfactant emulsion ripple rib 3.
As shown in Figure 3, enlarged drawing as shown in Figure 6, forms micro-bubble naturally form inside pipe wall surfactant emulsion ripple rib 3 at body pulling process to cross section in milky white quartz glass tube production technology.
The outer surface of milky white quartz glass tube 1 arranges the electric heating body 2 of various ways, can be jet printing type Electric radiant Heating Film or one of rare earth thick film heating or strip heater.For ensureing that electric heating body fully contacts with the outer wall of quartz ampoule, and prevent the cold water in pipe excessive, the outer wall of milky white quartz glass tube needs polishing and hot melt process again, forms the top layer of smooth densification.As shown in Figure 3, the micro-bubble content in this type of milky white quartz glass tube is more, and weaker zone 11 is thicker, and compacted zone 12 is thinner, is only that tube wall surface one deck is comparatively fine and close.This kind of pure white quartz glass tube price is lower.
For reaching good sealing effectiveness, bear hydraulic pressure, tube wall needs thicker compacted zone 12, strengthens intensity and the anti-pressure ability of body.For strengthening the intensity of quartz ampoule, as shown in Figure 4, can hot melt milky white quartz glass tube again, make it form thicker compacted zone 12.
The two ends of electric heating body are provided with metal electrode 4, operating voltage requirement lateral metal electrode configuration 4 according to using can be set to two or more, high voltage two metal electrodes, low-voltage with three metal electrodes or more (forming two groups of electric heaters in parallel), can use under facilitating multiple situation.
The Bottomhole pressure of liquid (as cold water) at milky white quartz glass tube 1 of heating is prepared during work, the metal electrode 4 of the electrode tip of electric heating body switches on power, electric heating body 2 generates heat, the heat produced by the tube wall of milky white quartz glass tube 1 with two kinds of forms of conduction and infrared penetration to the heating liquid in pipe, 0 to 90 degree that the surfactant emulsion ripple prismatic of milky white quartz glass tube inwall becomes and water contact angle, be conducive to during heating producing bubble, it has higher boiling heat transfer coefficient, liquid in pipe heat transfer process can be made to be further strengthened, considerably increase boiling heat transfer coefficient, improve heating liquid speed and the thermal efficiency, surfactant emulsion ripple rib can also reduce bubble volume, increase bubble density, reduces the strong disturbance to tube wall in vaporizing liquid process, improves the security reliability of product, reduce the risk that product in use bursts.
As shown in Figure 1, when the ratio of caliber and pipe range is very little, if pipe range is in the electric heating liquid heater of pipe diameter 5 times or more, the metal electrode 4 of described electric heating body electrode tip is along quartz glass tube bearing of trend horizontally set, be positioned at electric heating body two ends, form the metal electrode of annular.
Shown in Fig. 2, quartz ampoule is grown especially, the structure of Multistage electrical heating body parallel connection can also be adopted.Arrange metal electrode at the two ends of calandria, centre also increases and arranges one or more electrode, after being drawn, forms in parallel or cascaded structure by wire.
As shown in Figure 5, close with pipe range for caliber, if pipe range is the electric heating liquid heater of pipe diameter less than 2 times, the metal electrode of described electric heating body electrode tip is vertically arranged along heating tube bearing of trend, forms vertical metal electrode 41.
Claims (3)
1. a milky white quartz glass tube electric heating liquid heater, comprise milky white quartz glass tube, electric heating body, electric heating body electrode, the outer wall of milky white quartz glass tube is provided with electric heating body, the electrode tip of electric heating body is provided with lateral metal electrode configuration or vertical metal electrode, it is characterized in that: the tube wall of described milky white quartz glass tube is divided into two-layer from inside to outside, internal layer is weaker zone, skin is compacted zone, internal layer surface is formed with surfactant emulsion ripple rib by micro-bubble, and the tube wall outer wall of milky white quartz glass tube is smooth.
2. milky white quartz glass tube electric heating liquid heater according to claim 1, is characterized in that: described in the electric heating body be arranged on milky white quartz glass tube be jet printing type Electric radiant Heating Film or rare earth thick film heating or strip heater.
3. milky white quartz glass tube electric heating liquid heater according to claim 1, is characterized in that: the quantity of the metal electrode of described electric heating body electrode tip is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520294410.1U CN204787181U (en) | 2015-05-09 | 2015-05-09 | Milky white quartz glass tube electric heat liquid heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520294410.1U CN204787181U (en) | 2015-05-09 | 2015-05-09 | Milky white quartz glass tube electric heat liquid heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204787181U true CN204787181U (en) | 2015-11-18 |
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ID=54527220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520294410.1U Expired - Fee Related CN204787181U (en) | 2015-05-09 | 2015-05-09 | Milky white quartz glass tube electric heat liquid heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204787181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107007154A (en) * | 2017-03-30 | 2017-08-04 | 高亚航 | A kind of drinking device |
-
2015
- 2015-05-09 CN CN201520294410.1U patent/CN204787181U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107007154A (en) * | 2017-03-30 | 2017-08-04 | 高亚航 | A kind of drinking device |
| CN107007154B (en) * | 2017-03-30 | 2019-09-03 | 高亚航 | A kind of drinking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20210509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |