CN101509705A - Condensing gas water heater based on thermosiphon secondary heat exchange - Google Patents
Condensing gas water heater based on thermosiphon secondary heat exchange Download PDFInfo
- Publication number
- CN101509705A CN101509705A CN 200910030092 CN200910030092A CN101509705A CN 101509705 A CN101509705 A CN 101509705A CN 200910030092 CN200910030092 CN 200910030092 CN 200910030092 A CN200910030092 A CN 200910030092A CN 101509705 A CN101509705 A CN 101509705A
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- China
- Prior art keywords
- heat
- water heater
- chamber
- gas water
- thermal
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
- F28D21/0007—Water heaters
Abstract
The invention discloses a condensing fuel gas water heater based on the secondary heat-exchanging of a thermal siphon pipe, comprising a condensing fuel gas water heater body which is provided with a water inlet pipe and a smoke exhaust pipe. The condensing fuel gas water heater also comprises a heat-exchanging system for the thermal siphon pipe. The heat-exchanging system for the thermal siphon pipe comprises a flue gas chamber, a heat-exchanging chamber and a plurality of thermal siphon pipes; the heat-exchanging chamber is arranged above the flue gas chamber; the flue gas chamber is provided with a flue gas inlet and a flue gas outlet; the heat-exchanging chamber is provided with a water inlet and a water outlet; a plurality of hot siphon pipes are arranged vertically; the cooling section of the thermal siphon pipe is arranged in the heat-exchanging chamber and the heating section thereof is arranged in the flue gas chamber; the water outlet of the heat-exchanging chamber is connected with the water inlet pipe of the condensing fuel gas water heater body; and the flue gas inlet of the flue gas chamber is connected with the smoke exhaust pipe of the condensing fuel gas water heater body. The condensing fuel gas water heater adopts a thermal pipe technology to collect the thermal difference sensible heat of the exhausted smoke and the latent heat due to coagulation and gasification of steam so as to lead the heat to be used for preheating the water temperature, ensures the safe and reliable running of the fuel gas water heater simultaneously, and has the advantages of low cost, simple structure, wide applicable range and the like.
Description
Technical field
The present invention relates to a kind of condensed type combustion gas water heater, is a kind of condensed type combustion gas water heater based on thermosiphon secondary heat exchange specifically.
Background technology
Be becoming tight energy day now, particularly under fossil fuel situation in short supply day by day, condensed type combustion gas water heater is owing to being paid attention to widely more than 12% than the general gas water heater thermal efficiency is high, existing many at present companies release condensed type combustion gas water heater, generally all be to carry out twice heat exchange by heat-exchange system, after flue gas that burning produces is through a heat exchange, its temperature reduces, after through heat exchange for the second time, temperature is reduced to below the flue gas dew point temperature, steam in the flue gas will be condensed into water, discharges latent heat.But, the condensed type combustion gas water heater of having reported adopts integration production, when improving the thermal efficiency and energy-saving effect, paid huger economy input, and the integration design makes condensing type water heater bring numerous inconvenience aspect R and M, also can bring certain potential safety hazard because of the corrosion of afterheat heat exchanger in the long-term process of using.
Summary of the invention
The objective of the invention is to, at existing common condensed type combustion gas water heater input cost height, safeguard inconvenience and have deficiency such as potential safety hazard, a kind of condensed type combustion gas water heater based on thermosiphon secondary heat exchange is provided, adopt thermal siphon to utilize the waste heat of flue gas, when not additional additional energy source consumes, the waste heat of flue gas is made full use of, reach the effect of energy savings.
The technical scheme that the present invention is adopted for achieving the above object is:
Based on the condensed type combustion gas water heater of thermosiphon secondary heat exchange, comprise the condensed type combustion gas water heater body, the condensed type combustion gas water heater body is provided with water inlet pipe and smoke exhaust pipe, it is characterized in that:
Also be provided with the thermal siphon heat-exchange system;
Described thermal siphon heat-exchange system comprises: smoke chamber, heat-exchanging chamber, some thermal siphons; Heat-exchanging chamber is positioned at the smoke chamber top; Smoke chamber is provided with gas approach and exhanst gas outlet; Heat-exchanging chamber is provided with water inlet and delivery port; Described some thermal siphons (abbreviation heat pipe) are vertical array, and the part of thermal siphon places heat-exchanging chamber (for the thermal siphon cooling section), and another part places smoke chamber (for the thermal siphon bringing-up section);
The delivery port of described heat-exchanging chamber connects the water inlet pipe of condensed type combustion gas water heater body;
The gas approach of described smoke chamber connects the smoke exhaust pipe of condensed type combustion gas water heater body.
Described smoke chamber bottom is provided with the condensed water delivery port.
Described thermal siphon is equipped with some fins being positioned on the smoke chamber part, to increase heat exchange area.
The present invention adopts hot pipe technique to collect in the smoke evacuation temperature difference sensible heat and the steam latent heat of vaporization of condensing, and is used for the preheating water temperature, guarantees the gas heater safe and reliable operation simultaneously, has characteristics such as cost is low, simple in structure, applied widely.
Description of drawings
Fig. 1 is the condensed type combustion gas water heater structural representation that the present invention is based on thermosiphon secondary heat exchange;
Fig. 2 is a thermal siphon heat-exchange system structural upright schematic diagram of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment:
As shown in Figure 2, the thermal siphon heat-exchange system comprises smoke chamber 1, heat-exchanging chamber 2, some thermal siphons 3; Heat-exchanging chamber is positioned at the smoke chamber top; Smoke chamber is provided with gas approach 4 and exhanst gas outlet 5; Heat-exchanging chamber is provided with water inlet 6 and delivery port 7; Described some thermal siphons are vertical array, and the cooling section of thermal siphon places heat-exchanging chamber, and the bringing-up section of thermal siphon places smoke chamber.Described smoke chamber bottom is provided with condensed water delivery port 8.Described thermal siphon is equipped with some fins 9 on bringing-up section (being positioned at the flue gas indoor section), to increase heat exchange area.
In Fig. 1, the gas approach 4 of the smoke chamber of thermal siphon heat-exchange system connects the smoke exhaust pipe of condensed type combustion gas water heater body 10, heat-exchanging chamber water inlet 6 water receiving sources, and delivery port 7 connects the water inlet pipe of condensed type combustion gas water heater body.Usually, the flue of exhanst gas outlet 5 need slightly be inclined upwardly, to allow a small amount of condensate return collect discharge to smoke chamber.
Heat pipe is closed conduct or the system that inside vacuumized and charged into certain quantity of fluid, and an end of pipe is evaporator section (bringing-up section), and the other end is condensation segment (cooling section), can arrange heat insulation layer (being called the adiabatic section) according to application need two sections centres.Liquid carburation by evaporation when an end of heat pipe is heated in the capillary wick, liquid carburation by evaporation when steam flows to the other end and is heated under small pressure reduction in the capillary wick, steam flows to the other end and emits heat and condense into liquid under small pressure reduction, liquid flows back to evaporator section along porous material by the effect of capillary force again.So circulate endlessly, heat reaches the other end by an end of heat pipe.
Therefore, heat pipe has following structure and heat compensator conducting property:
1) inside heat pipe is vaporization and the phase-change heat-exchange that condenses, and thermal resistance is very little, so that heat pipe has high axial thermal conductivity ability or an axial temperature is even, therefore is called as high-performance heat transfer components or superconduction thermal element.
2) the cold and hot side liquid that participates in heat exchange all flows outside heat pipe, and fluid flow resistance is little, and is easy to fin and realizes heat conduction reinforced.
3) adopting heat pipes for heat transfer has passed through wall twice, does not have seepage, and thermal source and low-temperature receiver fluid mix anything but mutually.
When 4) inside heat pipe had the imbibition core, heat transfer can automatically reversely be carried out, and can adapt to the heat exchange needs of Various Seasonal and heat transfer temperature difference.
Heat-transfer capability is big, heat transfer temperature difference is little, flow resistance is low because heat pipe has, reverse heat transfer, do not have features such as the remote layout of seepage, Cooling and Heat Source, so be used for technical solutions of the utility model, good effect of heat exchange.
The course of work of the present invention is:
The high-temperature flue gas that fuel gas buring produces is by behind the main heat exchanger of condensed type combustion gas water heater body 10, enter smoke chamber 1 by smoke exhaust pipe, carry out heat exchange with thermal siphon 3, thermal siphon 3 is used for the heat that absorbs to the cold water preheating in the heat-exchanging chamber by cooling section, thereby reach the effect of recovery waste heat, whole device makes the thermal efficiency improve more than 12%.Flue gas by heat pipe after the condensed water of condensation can absorb the NO of part in the flue gas
xAnd SO
x, to discharge by condensed water delivery port 8, the flue gas after lowering the temperature like this can directly enter the air from flue, can play effect such as prevent the pollution of the environment.
Claims (3)
1, a kind of condensed type combustion gas water heater based on thermosiphon secondary heat exchange comprises condensed type combustion gas water heater body (10), and the condensed type combustion gas water heater body is provided with water inlet pipe and smoke exhaust pipe, it is characterized in that:
Also be provided with the thermal siphon heat-exchange system;
Described thermal siphon heat-exchange system comprises: smoke chamber (1), heat-exchanging chamber (2), some thermal siphons (3); Heat-exchanging chamber is positioned at the smoke chamber top; Smoke chamber is provided with gas approach (4) and exhanst gas outlet (5); Heat-exchanging chamber is provided with water inlet (6) and delivery port (7); Described some thermal siphons are vertical array, and the cooling section of thermal siphon places heat-exchanging chamber, and the bringing-up section of thermal siphon places smoke chamber;
The delivery port of described heat-exchanging chamber (7) connects the water inlet pipe of condensed type combustion gas water heater body;
The gas approach of described smoke chamber (4) connects the smoke exhaust pipe of condensed type combustion gas water heater body.
2, according to the described heat exchanger that is used for condensed type combustion gas water heater of claim 1, it is characterized in that: described smoke chamber bottom is provided with condensed water delivery port (8).
3, according to the described heat exchanger that is used for condensed type combustion gas water heater of claim 1, it is characterized in that: described thermal siphon is equipped with some fins (9) on bringing-up section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910030092 CN101509705A (en) | 2009-04-01 | 2009-04-01 | Condensing gas water heater based on thermosiphon secondary heat exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910030092 CN101509705A (en) | 2009-04-01 | 2009-04-01 | Condensing gas water heater based on thermosiphon secondary heat exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101509705A true CN101509705A (en) | 2009-08-19 |
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ID=41002181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910030092 Pending CN101509705A (en) | 2009-04-01 | 2009-04-01 | Condensing gas water heater based on thermosiphon secondary heat exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101509705A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091713A (en) * | 2016-08-08 | 2016-11-09 | 中冶华天南京工程技术有限公司 | The residual heat combined recirculation system of heating furnace |
| CN107588536A (en) * | 2016-07-07 | 2018-01-16 | 林内株式会社 | Horizontal arrangement type water heater |
| CN107702188A (en) * | 2017-10-23 | 2018-02-16 | 南昌大学 | A kind of heat-pipe apparatus for having heat storage capacity |
-
2009
- 2009-04-01 CN CN 200910030092 patent/CN101509705A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588536A (en) * | 2016-07-07 | 2018-01-16 | 林内株式会社 | Horizontal arrangement type water heater |
| CN107588536B (en) * | 2016-07-07 | 2021-05-07 | 林内株式会社 | Horizontal water heater |
| CN106091713A (en) * | 2016-08-08 | 2016-11-09 | 中冶华天南京工程技术有限公司 | The residual heat combined recirculation system of heating furnace |
| CN107702188A (en) * | 2017-10-23 | 2018-02-16 | 南昌大学 | A kind of heat-pipe apparatus for having heat storage capacity |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20090819 |