CN201666616U - Condensing indirect heat-exchanging and heat-supplying system - Google Patents
Condensing indirect heat-exchanging and heat-supplying system Download PDFInfo
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- CN201666616U CN201666616U CN2010201468406U CN201020146840U CN201666616U CN 201666616 U CN201666616 U CN 201666616U CN 2010201468406 U CN2010201468406 U CN 2010201468406U CN 201020146840 U CN201020146840 U CN 201020146840U CN 201666616 U CN201666616 U CN 201666616U
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- boiler
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a condensing indirect heat-exchanging and heat-supplying system, which aims at increasing the heat efficiency of the system and improving the effect of residual-heat utilization for a boiler. The system comprises a hot-water boiler, a hot-water supplying pipe and a hot-water return pipe. The boiler comprises a boiler body and a boiler barrel in the boiler body; the upper part of the boiler barrel is connected with an expansion water tank; the lower part of the inner cavity of the boiler barrel is provided with a combustion chamber; a smoke exhausting channel connecting the upper part of the boiler body and a smoke box at the tail part of the combustion chamber is provided with a condenser; a plurality of rows of finned tubes are arranged in the condenser; the upper part of the inner cavity of the boiler barrel is provided with a heat exchanger; the heat exchanger comprises a plurality of rows of heat-exchanging pipes which are distributed in array and pass through the length direction of the boiler barrel; the outside parts of two end plates of the heat exchanger are respectively provided with a heat-exchanger sealing head; a heat-exchanger water inlet and a heat-exchanger water outlet are arranged on the heat-exchanger sealing heads; a condenser water inlet is connected with the hot-water return pipe, meanwhile, a condenser water outlet is connected with the heat-exchanger water inlet, and the heat-exchanger water outlet is connected with the hot-water supplying pipe. The heat-supplying system has high thermal efficiency, low smoke-exhausting temperature and good heat recovery performance.
Description
Technical field
The utility model relates to a kind of hot-water heating system in heat supply process field, particularly a kind of condensation indirect heat exchange heating system.
Background technology
At present, hot-water heating system mainly adopts normal-pressure hot-water boiler, for work, life provide domestic water, the primary structure of hot-water boiler comprises body of heater and places the interior drum of body of heater, the top of drum is connected with expansion tank, the bottom of drum inner chamber is provided with the combustion chamber, the smokejack that the body of heater top links to each other with the combustor tail smoke box is provided with condenser, be provided with number row finned tube in the condenser, to reclaim the heat in the smoke evacuation, reduce exhaust gas temperature, fresh water is flowed through and is made a gift to someone after the finned tube temperature of condenser is raise in the drum simultaneously.The weak point of this heating system is: the water after the heating is sent to heat supply point through pipeline and uses, fresh cold water source constantly replenishes in the body of heater, owing to be rich in calcium, magnesium ion in the fresh water, has certain rigidity, after working long hours, when constantly heating fresh water, the fouling meeting in the drum is serious day by day, and incrustation scale has very high thermal resistance, can reduce heat transfer efficiency greatly, not only cause energy waste, and make heating surface can not get good cooling, have potential safety hazard.Must blowing out carry out scale removal when fouling is heavier, scale removal not only needs man-hour, increases use cost, and no matter is mechanical descaling or chemical cleaning, all can cause certain damage to drum.In addition, the dissolved oxygen in the fresh water has corrosiveness to steel, also can shorten the service life of boiler.
Also have a kind of heating system, the condenser water inlet links to each other with boiler drum bottom by circulating pump, and the condenser delivery port links to each other with the drum top, and promptly hot water in the condenser and drum form circulation.It is less that such heating system enters the water temperature and the temperature difference between the exhaust gas temperature of condenser, influenced the waste heat recovery effect of condenser.
The utility model content
At existing unpressurized hot water boiler's above shortcomings, the utility model provides the condensation indirect heat exchange that a kind of UTILIZATION OF VESIDUAL HEAT IN is effective, the thermal efficiency is high heating system.
For solving above technical problem, a kind of condensation indirect heat exchange heating system provided by the utility model, comprise hot-water boiler, hot water feeding pipe and hot water return pipe, hot-water boiler comprises body of heater and places the interior drum of body of heater, the top of drum is connected with expansion tank, the bottom of drum inner chamber is provided with the combustion chamber, the smokejack that the body of heater top links to each other with the combustor tail smoke box is provided with condenser, be provided with number row finned tube in the condenser, the top of drum inner chamber is provided with heat exchanger, heat exchanger comprise that number row is that array distributes and through the drum length direction heat exchanger tube, the two end plates of heat exchanger is respectively equipped with exchanger head outward, exchanger head is provided with heat exchanger water inlet and heat exchanger delivery port, the condenser water inlet links to each other with described hot water return pipe, the condenser delivery port links to each other with the heat exchanger water inlet, and the heat exchanger delivery port links to each other with described hot water feeding pipe.
Compared with prior art, the beneficial effect that the utility model is obtained is: the back-end ductwork of boiler is provided with condenser can reclaim waste heat in the smoke evacuation, reduce exhaust gas temperature, make the water at low temperature that enters heat exchanger obtain preheating, in the condenser between high-temperature flue gas and the hot water backwater temperature difference bigger, good effect of heat exchange; Connect with heat exchanger in the water route of condenser, water at low temperature enters indirect that heat exchanger continues to be subjected to stove water again after the condenser preheating become and meet the hot water that heating system requires; Being subjected to the direct-fired water in combustion chamber in the drum is closed cycle, consumes seldom, can not improve dissolved oxygen and hardness of water in the drum because of a large amount of fresh waters that replenish.
Description of drawings
Fig. 1 is the front view of the utility model condensation indirect heat exchange heating system.
Among the figure: 1 combustion chamber, 1a burner interface, 2 heat exchangers, 2a heat exchanger delivery port, 2b heat exchanger water inlet, 2c exchanger head, 2d heat exchanger tube, 3 expansion tanks, 4 condensers, 4a condenser water inlet, 4b condenser delivery port, 4c finned tube, 5a condenser advance mouth, 5b condenser exhaust opening, 6 drums, 6a hand hole, 6b drum sewage draining exit.
The specific embodiment
As shown in Figure 1, condensation indirect heat exchange heating system of the present utility model comprises hot-water boiler, hot water feeding pipe and hot water return pipe, hot-water boiler comprises body of heater and places the interior drum 6 of body of heater, the top of drum 6 is connected with expansion tank 3, with the Volume Changes that the water in the compensation drum causes because of variations in temperature, the bottom of drum 6 is provided with hand hole 6a and drum sewage draining exit 6b.The bottom of drum inner chamber is provided with combustion chamber 1, and combustion chamber 1 is connected with burner by burner interface 1a, and the smokejack of body of heater top is provided with condenser 4, is provided with number row finned tube 4c in the condenser 4.The top of drum inner chamber is provided with heat exchanger 2, heat exchanger 2 comprise that number row is that array distributes and through the drum length direction heat exchanger tube 2d, the two end plates of heat exchanger 2 is respectively equipped with exchanger head 2c outward, and exchanger head 2c is provided with heat exchanger delivery port 2a and heat exchanger water inlet 2b.Condenser water inlet 4a links to each other with hot water return pipe, and condenser delivery port 4b links to each other with heat exchanger water inlet 2b, and heat exchanger delivery port 2a links to each other with the hot water feeding pipe.Condenser advances mouth 5a and links to each other with the exhaust opening of combustor tail smoke box, and discharge from condenser exhaust opening 5b at last in the high-temperature flue gas gap between the finned tube 4c in the condenser 4 of flowing through.
During the work of this heating system, hot water backwater's temperature is 10 ℃～20 ℃, 4a enters condenser 4 from the condenser water inlet, advances process along finned tube 4c, and the tail flue gas of boiler heats it, makes its temperature rise to 50 ℃, flows out from condenser delivery port 4b; Then enter heat exchanger 2 by heat exchanger water inlet 2b, high temperature furnace water heat exchanging device 2 carries out indirect, makes the coolant-temperature gage among the heat exchanger tube 2d rise to 80 ℃, flows out from heat exchanger delivery port 2a, enters the hot water feeding pipe of heating system.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (1)
1. condensation indirect heat exchange heating system, comprise hot-water boiler, hot water feeding pipe and hot water return pipe, hot-water boiler comprises body of heater and places the interior drum of body of heater, the top of drum is connected with expansion tank, the bottom of drum inner chamber is provided with the combustion chamber, the smokejack that the body of heater top links to each other with the combustor tail smoke box is provided with condenser, be provided with number row finned tube in the condenser, it is characterized in that, the top of drum inner chamber is provided with heat exchanger, heat exchanger comprise that number row is that array distributes and through the drum length direction heat exchanger tube, the two end plates of heat exchanger is respectively equipped with exchanger head outward, and exchanger head is provided with heat exchanger water inlet and heat exchanger delivery port, and the condenser water inlet links to each other with described hot water return pipe, the condenser delivery port links to each other with the heat exchanger water inlet, and the heat exchanger delivery port links to each other with described hot water feeding pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201468406U CN201666616U (en) | 2010-04-01 | 2010-04-01 | Condensing indirect heat-exchanging and heat-supplying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201468406U CN201666616U (en) | 2010-04-01 | 2010-04-01 | Condensing indirect heat-exchanging and heat-supplying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666616U true CN201666616U (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201468406U Expired - Lifetime CN201666616U (en) | 2010-04-01 | 2010-04-01 | Condensing indirect heat-exchanging and heat-supplying system |
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| Country | Link |
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| CN (1) | CN201666616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915808A (en) * | 2019-04-26 | 2019-06-21 | 宁波金名片能源科技有限公司 | A kind of steam generator changes water installations |
-
2010
- 2010-04-01 CN CN2010201468406U patent/CN201666616U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915808A (en) * | 2019-04-26 | 2019-06-21 | 宁波金名片能源科技有限公司 | A kind of steam generator changes water installations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yangzhou Star Boiler Co., Ltd. Assignor: Pei Guangtai Contract record no.: 2012990000367 Denomination of utility model: Condensing indirect heat-exchanging and heat-supplying system Granted publication date: 20101208 License type: Exclusive License Record date: 20120531 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |