CN203100147U - Condensing type ordinary pressure gas-fired boiler - Google Patents
Condensing type ordinary pressure gas-fired boiler Download PDFInfo
- Publication number
- CN203100147U CN203100147U CN 201320053038 CN201320053038U CN203100147U CN 203100147 U CN203100147 U CN 203100147U CN 201320053038 CN201320053038 CN 201320053038 CN 201320053038 U CN201320053038 U CN 201320053038U CN 203100147 U CN203100147 U CN 203100147U
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- heat exchanger
- condensing
- boiler
- main heat
- gas
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Abstract
The utility model discloses a condensing type ordinary pressure gas-fired boiler which comprises a combustion engine and a main heat exchanger. The condensing type ordinary pressure gas-fired boiler is characterized by further comprising a condensing heat exchanger, a gas duct of the condensing heat exchanger is connected with an gas duct outlet of the main heat exchanger through bending pipes in a bunch mode, a water outlet of the condensing heat exchanger is communicated with a water inlet of the main heat exchanger, after the water outlet of the condensing heat exchanger is communicated with the water inlet of the main heat exchanger, the water inlet of the condensing heat exchanger is used as a cold water inlet of the boiler and the water outlet of the main heat exchanger is used as a hot water outlet of the boiler; and the main heat exchanger, the gas duct bending pipes and the condensing heat exchanger are covered together by a heat-insulation layer, are sealed by a shell, and form the condensing type ordinary pressure gas-fired boiler together with the combustion engine. The condensing type ordinary pressure gas-fired boiler is capable of significantly reducing gas exhausting temperature of the boiler, and sufficiently utilizing gas heat, and beneficial to energy saving and environmental-protection.
Description
Technical field
The utility model belongs to the Thermal Power Engineering technical field, is specifically related to atmospheric gas-burning boiler.
Background technology
Present known traditional gas fired-boiler, mainly containing combustor and main heat exchanger forms, extensively model is used aspect building heating and heat supply water, but because of its exchange capability of heat design ratio less, generally more than 200 ℃, heat loss is bigger for exhaust gas temperature, and the thermal efficiency is all less than 90%, and the hot flue gas of its discharging causes certain pollution to environment, is unfavorable for energy-conserving and environment-protective.
Summary of the invention
The purpose of this utility model is the condensing atmospheric gas-burning boiler that a kind of remarkable reduction exhaust gas temperature is provided, makes full use of fuel gas calorie.
Technical scheme is, a kind of condensing atmospheric gas-burning boiler, it comprises combustor and main heat exchanger, it is characterized in that, it also comprises condensing heat exchanger, and the flue of condensing heat exchanger and the flue outlet of main heat exchanger connect with the bend pipe polyphone, and the delivery port of condensing heat exchanger is communicated with the water inlet of main heat exchanger, the water inlet that is communicated with the back condensing heat exchanger is as the boiler cooling water inlet, and the delivery port of main heat exchanger exports as boiler hot-water; And main heat exchanger, flue bent pipe and condensing heat exchanger are bundled together with heat-insulation layer, and with the shell encapsulation, constitute the condensing atmospheric gas-burning boiler with combustor.
The preferred tubular heat exchanger structure of above-mentioned main heat exchanger (material is a mild steel).
The above-mentioned preferred finned condensing heat exchanger of heat exchanger (material is copper, stainless steel or aluminium) with fixed attention.
Be to increase the condensing heat exchanger heat exchange area, finned condensing heat exchanger is composed in series by multilayer up and down.
Good effect of the present utility model is:
1, owing to adopt the condensing heat exchanger secondary heat exchange, heat can make full use of, and the condensation hot water of heat exchange can be used for building heating, industrial hot water and life hot water.Adopt finned condensing heat exchanger, belong to the heat exchange of multilevel hierarchy formula, bigger than other condenser boiler heat exchange areas, make the complete machine thermal efficiency obtain maximum lift.Flue gas is from lower to upper in main heat exchanger, and the flow direction that enters condensing heat exchanger makes the condensed water that forms on the sweep of gases condensing heat exchanger wall more from top to bottom like this, is beneficial to the discharge of condensed water, makes condensing heat exchanger remain high exchange capability of heat.
2, owing to adopt the two-stage heat exchange structure, exhaust gas temperature drop to have only 40～60 ℃, sensible heat and latent heat in the flue gas fully absorbed, make the thermal efficiency significantly improve, press the natural gas low heat value and calculate, the thermal efficiency is up to 107%, and the conventional gas fired-boiler of thermal efficiency ratio improves more than 10%, by condensation to flue gas, filtering the harmful substance in the smoke evacuation, the harmful substance of discharging in the flue gas can reduce more than 70%, has great economic benefit and social benefit.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Marginal data, 1-combustor, 2-main heat exchanger, 3-condensing heat exchanger, 4-flue bent pipe, 5-cooling water inlet, 6-hot water outlet, 7-exhanst gas outlet, 8-condensation-water drain, 9-heat-insulation layer, 10-shell.
The specific embodiment
With reference to the accompanying drawings the utility model is described further.
Condensing atmospheric gas-burning boiler as shown in Figure 1, main body comprise combustor 1, main heat exchanger 2, condensing heat exchanger 3, flue bent pipe 4, cooling water inlet 5, hot water outlet 6, exhanst gas outlet 7 and condensation-water drain 8.The flue of condensing heat exchanger 3 and main heat exchanger 2 flues connect with flue bent pipe 4 polyphones, the delivery port of condensing heat exchanger 3 is communicated with the water inlet of main heat exchanger 2, the water inlet that is communicated with back condensing heat exchanger 3 is as boiler cooling water inlet 5, and the delivery port of main heat exchanger 2 is as boiler hot-water outlet 6; And main heat exchanger 2, flue bent pipe 4 and condensing heat exchanger 3 all are bundled together with heat-insulation layer 9, and encapsulate with shell 10.So just constituted a kind of condensing atmospheric gas-burning boiler.
Above-mentioned main heat exchanger adopts low-carbon steel material tubular heat exchanger structure.
The above-mentioned finned condensing heat exchanger that coagulates heat exchanger employing copper, stainless steel or aluminium material.
Be to increase the condensing heat exchanger heat exchange area, finned condensing heat exchanger is composed in series by multilayer up and down.
Burning of the present utility model, smoke evacuation flow process are: combustion gas enters combustor 1, through fully burning, the hot flue gas that discharges is through main heat exchanger 2, finish elementary heat exchange, flue gas (temperature is at 180～220 ℃) enters into condensing heat exchanger 3 by flue bent pipe 4 again, the latent heat that the water vapour condensation discharges in waste heat in the flue gas and the flue gas heat exchanger 3 that is condensed fully absorbs, by the suitable flue gas of the condensed water of water recovery generation down, discharge through condensation-water drain 8, final flue gas (temperature is at 40～60 ℃) is discharged by exhanst gas outlet 7.
The water route circulation process is: water at low temperature is introduced into condensing heat exchanger 3 by cooling water inlet 5, utilizes flue gas to heat, and flows into main heat exchanger 2 again, and further the heating back is sent by hot water outlet 6.The condensation hot water that condensation-water drain 8 is discharged can be used for building heating, industrial hot water and life hot water.
Claims (4)
1. condensing atmospheric gas-burning boiler, it comprises combustor and main heat exchanger, it is characterized in that, it also comprises condensing heat exchanger, the flue of condensing heat exchanger and the flue outlet of main heat exchanger connect with the bend pipe polyphone, the delivery port of condensing heat exchanger is communicated with the water inlet of main heat exchanger, and the water inlet that is communicated with the back condensing heat exchanger is as the boiler cooling water inlet, and the delivery port of main heat exchanger exports as boiler hot-water; And main heat exchanger, flue bent pipe and condensing heat exchanger are bundled together with heat-insulation layer, and with the shell encapsulation, constitute the condensing atmospheric gas-burning boiler with combustor.
2. condensing atmospheric gas-burning boiler as claimed in claim 1 is characterized in that, described main heat exchanger adopts the tubular heat exchanger structure.
3. condensing atmospheric gas-burning boiler as claimed in claim 1 is characterized in that described condensing heat exchanger is selected finned condensing heat exchanger for use.
4. condensing atmospheric gas-burning boiler as claimed in claim 3 is characterized in that, described condensing heat exchanger is composed in series by multilayer up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053038 CN203100147U (en) | 2013-01-31 | 2013-01-31 | Condensing type ordinary pressure gas-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053038 CN203100147U (en) | 2013-01-31 | 2013-01-31 | Condensing type ordinary pressure gas-fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203100147U true CN203100147U (en) | 2013-07-31 |
Family
ID=48851541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320053038 Expired - Fee Related CN203100147U (en) | 2013-01-31 | 2013-01-31 | Condensing type ordinary pressure gas-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203100147U (en) |
-
2013
- 2013-01-31 CN CN 201320053038 patent/CN203100147U/en not_active Expired - Fee Related
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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: 20130731 Termination date: 20140131 |