CN202769957U - Return water preheating energy-saving device of atmospheric boiler - Google Patents
Return water preheating energy-saving device of atmospheric boiler Download PDFInfo
- Publication number
- CN202769957U CN202769957U CN201220434693.1U CN201220434693U CN202769957U CN 202769957 U CN202769957 U CN 202769957U CN 201220434693 U CN201220434693 U CN 201220434693U CN 202769957 U CN202769957 U CN 202769957U
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- Prior art keywords
- boiler
- heat exchanger
- return water
- energy
- flue gas
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Abstract
The utility model provides a return water preheating energy-saving device of an atmospheric boiler and belongs to the technical field of boiler energy conservation. The return water preheating energy-saving device of the atmospheric boiler aims to mainly solve the problems that air pollution is caused and a large amount of heat energy is wasted due to the fact that waste gas produced by fuel combustion is discharged directly during an operation process of a common boiler. The return water preheating energy-saving device of the atmospheric boiler comprises a flue gas discharge pipe, a heat exchanger, a returning pipe and an induced draft fan, wherein the heat exchanger is arranged between the return water and a water inlet of the boiler. The flue gas produced by boiler combustion preheats the return water of a heating system after passing through the heat exchanger, the temperature of the return water of the heating system is increased to a certain extent, and then the return water of the heating system is input into the boiler to be heated. The return water preheating energy-saving device of the atmospheric boiler has the advantages of greatly reducing heat loss of discharge smoke of the atmospheric boiler and recycling the lost heat energy.
Description
Technical field
The utility model belongs to the boiler energy-saving technical field, is specifically related to a kind of backwater of atmospheric boiler energy-saving apparatus for prewarming.
Background technology
Boiler is as the equipment of producing hot water or steam, it is one of the most frequently used cooker, boiler all kinds of various, classifying by the material that burns has dividing of coal-fired and combustion gas, because a variety of causes causes the specified thermal efficiency of boiler can only reach below 75% of boiler gross capability, there is the heat energy more than 25% to scatter and disappear by flue gas loss, loss of the inadequacy burning for chemistry mechanics reason, unburned carbon loss, body of heater radiation loss, lime-ash physics sensible heat loss etc.Wherein flue gas loss accounts for more than 90% of total heat waste, the decrease heat loss due to exhaust gas, and this partial heat energy recycled the key point that becomes boiler energy-saving, in the running of plain cylindrical furnace, the waste gas that combustion fuel produces is directly discharged, both cause air pollution, wasted again many heat energy.
Summary of the invention
The purpose of this utility model is to solve the problem that prior art exists, the device that provides a kind of combustion product gases waste heat that utilizes normal-pressure boiler the backwater of water-heating system to be carried out preheating.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be:
A kind of backwater of atmospheric boiler energy-saving apparatus for prewarming comprises flue gas exhaust pipeline, heat exchanger, return pipe and air-introduced machine; It is characterized in that: described heat exchanger is tubular, barrel is that the bottom of its heat exchanger of water jacket is provided with the heat exchanger water inlet, the top of its heat exchanger is provided with the heat exchanger delivery port, the boiler exhaust gas gas port is connected by flue gas exhaust pipeline with the flue gas mouth that advances on heat exchanger top, the heat exchanger bottom arranges the heat exchanger exhanst gas outlet, and described heat exchanger exhanst gas outlet is connected with air-introduced machine by flue gas exhaust pipeline; Described return pipe is connected with the heat exchanger water inlet, and the heat exchanger delivery port is connected by pipeline with the boiler blow-down water entrance.
The utility model compared with prior art has following beneficial effect:
Because the utility model adopts the heat exchanger preheating to add water, the flue gas that has utilized greatly boiler emission with heat; Fuel savings reduces the heating cost, realizes energy-saving and emission-reduction.
2, because the utility model is simple in structure, can transform at original boiler, easy to utilize.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-boiler; 2-boiler exhaust gas gas port; 3-flue gas exhaust pipeline; 4-heat exchanger delivery port; 5-advance the flue gas mouth; 6-heat exchanger; 7-heat exchanger water inlet; 8-return pipe; 9-air-introduced machine; 10-heat exchanger exhanst gas outlet; 11-boiler blow-down water entrance.
The specific embodiment
As shown in Figure 1, a kind of backwater of atmospheric boiler energy-saving apparatus for prewarming comprises flue gas exhaust pipeline 3, heat exchanger 6, return pipe 8 and air-introduced machine 9; Described heat exchanger 6 is tubular, barrel is that the bottom of its heat exchanger of water jacket is provided with heat exchanger water inlet 7, the top of its heat exchanger is provided with heat exchanger delivery port 4, boiler exhaust gas gas port 2 is connected by flue gas exhaust pipeline 3 with the flue gas mouth 5 that advances on heat exchanger top, the heat exchanger bottom arranges heat exchanger exhanst gas outlet 10, and described heat exchanger exhanst gas outlet 10 is connected with air-introduced machine 9 by flue gas exhaust pipeline 3; Described return pipe 8 is connected with heat exchanger water inlet 7, and heat exchanger delivery port 4 and boiler blow-down water entrance 11 are connected by pipeline.
The utility model can new system, also can transform at original boiler.
Operation principle:
During the utility model work, the flue gas of discharging in the boiler 1 enters in the heat exchanger 6 backwater is wherein heated, and discharges through air-introduced machine 9 through the flue gas after the heat exchange; Heated backwater enters boiler by the backwater entrance 11 of boiler.
Claims (1)
1. a backwater of atmospheric boiler energy-saving apparatus for prewarming comprises flue gas exhaust pipeline (3), heat exchanger (6), return pipe (8) and air-introduced machine (9); It is characterized in that: described heat exchanger (6) is tubular, its underpart is provided with heat exchanger water inlet (7), its top is provided with heat exchanger delivery port (4), boiler exhaust gas gas port (2) is connected by flue gas exhaust pipeline (3) with the flue gas mouth (5) that advances on heat exchanger top, the heat exchanger bottom arranges heat exchanger exhanst gas outlet (10), and described heat exchanger exhanst gas outlet (10) is connected with air-introduced machine (9) by flue gas exhaust pipeline (3); Described return pipe (8) is connected with heat exchanger water inlet (7), and heat exchanger delivery port (4) is connected by pipeline with boiler blow-down water entrance (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220434693.1U CN202769957U (en) | 2012-08-30 | 2012-08-30 | Return water preheating energy-saving device of atmospheric boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220434693.1U CN202769957U (en) | 2012-08-30 | 2012-08-30 | Return water preheating energy-saving device of atmospheric boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202769957U true CN202769957U (en) | 2013-03-06 |
Family
ID=47776523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220434693.1U Expired - Lifetime CN202769957U (en) | 2012-08-30 | 2012-08-30 | Return water preheating energy-saving device of atmospheric boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202769957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068022A (en) * | 2018-01-23 | 2019-07-30 | 佛山市广雅金属橡胶制品有限公司 | Natural gas hot water's boiler afterheat recovering device |
-
2012
- 2012-08-30 CN CN201220434693.1U patent/CN202769957U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068022A (en) * | 2018-01-23 | 2019-07-30 | 佛山市广雅金属橡胶制品有限公司 | Natural gas hot water's boiler afterheat recovering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160804 Address after: 045499 No. 10 industrial park, Shouyang County, Shanxi, Jinzhong Patentee after: Shanxi Shenghuoweiye Technology Co.,Ltd. Address before: 045400 No. 10 industrial park, Shouyang County, Shanxi, Jinzhong Patentee before: SHANXI HENGTE TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |