CN201246893Y - Secondary heat exchanger for gas water heater - Google Patents
Secondary heat exchanger for gas water heater Download PDFInfo
- Publication number
- CN201246893Y CN201246893Y CN 200820053766 CN200820053766U CN201246893Y CN 201246893 Y CN201246893 Y CN 201246893Y CN 200820053766 CN200820053766 CN 200820053766 CN 200820053766 U CN200820053766 U CN 200820053766U CN 201246893 Y CN201246893 Y CN 201246893Y
- Authority
- CN
- China
- Prior art keywords
- interlayer
- heat exchange
- inner core
- heat exchanger
- utility
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a secondary heat exchange device with high heat exchange efficiency for a gas water heater, which comprises a smoke inlet [6], a smoke exhaust port [5] and a casing [2], and is characterized in that an inner core [3] is arranged in the casing [2], an interlayer [4] is formed by the casing [2] and the inner core [3], a heat exchange tube [8] which is connected with a water inlet tube [1] and a water outlet tube [7] is arranged in the interlayer [4], the smoke inlet [6] and the smoke exhaust port [5] are communicated with the interlayer [4], and a condensing water outlet [9] is arranged on the lower portion of the interlayer [4]. The utility model has simple structure, can realize the heat exchange as high temperature smoke moves along an interlayer channel, and contacts with a spiral heat exchange tube arranged in the interlayer channel, and has long heat exchange time, no heat exchange dead corners, excellent heat exchange effect and low manufacturing cost, and can simultaneously meet the requirements of the product performance and the manufacturing cost.
Description
Technical field:
The utility model relates to a kind of gas heater, specifically a kind of gas heater two times heat changing device.
Background technology:
Existing have the gas heater of one-level efficiency owing to increased two times heat changing device, the flue gas that is about to existing gas heater discharge further cools off, make the gas heater exhaust gas temperature, be reduced to below 100 ℃ by about 180 ℃, thereby exhaust gas temperature is reduced, the latent heat of vaporization that discharges when making full use of water vapor condensation in the flue gas, the general gas heater of thermal efficiency ratio improves more than 10%, is a kind of energy-efficient product.But existing condensing heat exchanger adopts following two kinds of structures usually, a kind of is copper finned tube heat-exchanger rig, the shortcoming of its structure is owing to contain corrosive deposits such as nitric acid, carbonic acid in the condensed water, can produce corrosion to the condensation segment material, so copper finned tube heat-exchanger rig surface, usually to increase corrosion-resistant coating, this corrosion-resistant coating can hinder the heat exchange effect, and anti-corrosion effects is desirable not to the utmost, corrosion-resistant coating also can increase cost of goods manufactured simultaneously, the material price of copper is higher, makes cost height, the effect of heat exchanger undesirable, influences popularizing of product.The 2nd, adopt the corrugated stainless steel tubing structure, be as heat exchange element with corrugated stainless steel tubing, be directly installed in the exhaust gases passes, flue gas and corrugated stainless steel tubing are short time of contact, influence the heat exchange effect, simultaneously because the corrugated stainless steel tubing bending radius has certain limit, there are some dead angles, flue gas just directly discharges without corrugated stainless steel tubing, and the heat exchange effect is undesirable.
Summary of the invention:
The purpose of this utility model provides the high gas heater two times heat changing device of a kind of heat exchange efficiency.
The utility model is to adopt following technical scheme to realize its goal of the invention, a kind of gas heater two times heat changing device, it comprises into mouth 6, exhaust opening 5, shell 2, be provided with an inner core 3 in the shell 2, shell 2 is formed an interlayer 4 with inner core 3, be provided with the heat exchanger tube 8 that links to each other with water inlet pipe 1, outlet pipe 7 in the interlayer 4, advance mouth 6, exhaust opening 5 is communicated with interlayer 4, is provided with condensation-water drain 9 in the bottom of interlayer 4.
Described in the utility modelly advance mouth 6 and be communicated with interlayer 4 by inner core 3.
Owing to adopt technique scheme, the utility model has been realized goal of the invention preferably, it is simple in structure, and high-temperature flue gas moves along sandwich passage during work, contacts with the spiral heat exchange tube that is arranged in wherein, realize heat exchange, heat-exchange time is long, does not have heat exchanging corner, good effect of heat exchange, low cost of manufacture can be taken into account properties of product and manufacturing cost requirement on both side simultaneously.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1:
A kind of gas heater two times heat changing device, it comprises into mouth 6, exhaust opening 5, shell 2, be provided with an inner core 3 in the shell 2, shell 2 is formed an interlayer 4 with inner core 3, be provided with the heat exchanger tube 8 that links to each other with water inlet pipe 1, outlet pipe 7 in the interlayer 4, advance mouth 6, exhaust opening 5 is communicated with interlayer 4, is provided with condensation-water drain 9 in the bottom of interlayer 4.
In the utility model when work,, flue gas enters interlayer 4 from advancing mouth 6 along inner core 3, contacts with heat exchanger tube 8 in being arranged in interlayer 4; Cold water enters from water inlet pipe 1, carries out heat exchange by heat exchanger tubes in the interlayer 48 and flue gases, and the heat in the flue gas is delivered in the water in the heat exchanger tube 8, discharges from outlet pipe 7 again.The condensation-water drain 9 of condensed water from be located at shell 2 flows out outside the two times heat changing device.
Embodiment 2:
By accompanying drawing as can be known, described in the utility modelly advance mouth 6 and be communicated with interlayer 4 by inner core 3.Surplus with embodiment 1.
Embodiment 3:
Claims (4)
1, a kind of gas heater two times heat changing device, it comprises into mouth [6], exhaust opening [5], shell [2], it is characterized in that being provided with in the shell [2] inner core [3], shell [2] is formed an interlayer [4] with inner core [3], be provided with the heat exchanger tube [8] that links to each other with water inlet pipe [1], outlet pipe [7] in the interlayer [4], advance mouth [6], exhaust opening [5] is communicated with interlayer [4], is provided with condensation-water drain [9] in the bottom of interlayer [4].
2, gas heater two times heat changing device according to claim 1 is characterized in that into mouth [6] is communicated with interlayer [4] by inner core [3].
3, gas heater two times heat changing device according to claim 1 is characterized in that exhaust opening [5] is communicated with interlayer [4] by inner core [3].
4,, it is characterized in that described heat exchanger tube [8] arranges at interlayer [4] inside spin according to claim 1 or 2 or 3 described gas heater two times heat changing devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820053766 CN201246893Y (en) | 2008-07-15 | 2008-07-15 | Secondary heat exchanger for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820053766 CN201246893Y (en) | 2008-07-15 | 2008-07-15 | Secondary heat exchanger for gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246893Y true CN201246893Y (en) | 2009-05-27 |
Family
ID=40730715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820053766 Expired - Fee Related CN201246893Y (en) | 2008-07-15 | 2008-07-15 | Secondary heat exchanger for gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246893Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202587A (en) * | 2015-09-18 | 2015-12-30 | 郭磊 | Coal-fired furnace waste heat recovery device |
| CN106016327A (en) * | 2016-07-12 | 2016-10-12 | 高鹏宇 | Low-pressure-loss flue gas heating furnace |
| EP3367035A1 (en) * | 2017-02-28 | 2018-08-29 | Robert Bosch GmbH | Heat exchanger tube helix and storage container with a heat exchanger tube helix |
-
2008
- 2008-07-15 CN CN 200820053766 patent/CN201246893Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202587A (en) * | 2015-09-18 | 2015-12-30 | 郭磊 | Coal-fired furnace waste heat recovery device |
| CN106016327A (en) * | 2016-07-12 | 2016-10-12 | 高鹏宇 | Low-pressure-loss flue gas heating furnace |
| EP3367035A1 (en) * | 2017-02-28 | 2018-08-29 | Robert Bosch GmbH | Heat exchanger tube helix and storage container with a heat exchanger tube helix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20100715 |