CN208504353U - A kind of cycles, economized heating system - Google Patents
A kind of cycles, economized heating system Download PDFInfo
- Publication number
- CN208504353U CN208504353U CN201721855381.7U CN201721855381U CN208504353U CN 208504353 U CN208504353 U CN 208504353U CN 201721855381 U CN201721855381 U CN 201721855381U CN 208504353 U CN208504353 U CN 208504353U
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- China
- Prior art keywords
- oxygen
- water
- pipeline
- eliminating device
- cooling wall
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Abstract
The utility model discloses a kind of cycles, economized heating systems, it is characterized by comprising oxygen-eliminating devices, the oxygen-eliminating device is connected with feed pump pipeline, the feed pump is connected with height plus pipeline, the height adds to be connected with boiler economizer pipeline, the boiler economizer is connected with water-cooling wall, and the water-cooling wall is connected with separator, and the separator is connected by NWL valve with the oxygen-eliminating device pipeline；Utility model has the advantages that not only recycling a large amount of working medium and heat, but also boiler tube metal temperature before lighting a fire is significantly improved, substantially reduces the time of cold start baker, in the case where not increasing equipment investment, save great amount of fuel oil.
Description
Technical field
The utility model relates to a kind of loop heating system, specifically a kind of cycles, economized heating system belongs to and follows
Ring heating system field.
Background technique
The separator bottom design of 670WM#3,4 unit starting systems have NWL valve (being connect with oxygen-eliminating device) and HWL-1,
HWL-2 valve (is connect) with collecting-tank and condenser, the water by the startup program of design instruction, before ignition of the boiler, in separator
Collecting-tank is directly discharged by HWL-1, HWL-2 valve to improve the quality of water, without recycling.The process of water are as follows: water supply →
Oxygen-eliminating device → feed pump → height plus → boiler economizer → water-cooling wall → starting separator → HWL valve → collecting-tank → outlet.One
Secondary starting washing time 5 hours, outer displacement was up to more than 1000 tons.The direct emission of water causes a large amount of demineralized water and heat
Waste.
Summary of the invention
To solve the above-mentioned problems, the utility model devises a kind of cycles, economized heating system, not only recycles a large amount of works
Matter and heat, and boiler tube metal temperature before lighting a fire is significantly improved, the time of cold start baker is substantially reduced, is not being increased
In the case that oil (gas) filling device is put into, great amount of fuel oil is saved.
The technical solution of the utility model are as follows:
A kind of cycles, economized heating system, including oxygen-eliminating device, the oxygen-eliminating device are connected with feed pump pipeline, the feed pump
It is connected with high-pressure heater pipeline, the high-pressure heater is connected with boiler economizer pipeline, the boiler economizer and water cooling
Wall is connected, and the water-cooling wall is connected with separator, and the separator is connected by NWL valve with the oxygen-eliminating device pipeline.
The temperature of the oxygen-eliminating device is >=100 DEG C.The temperature of the water-cooling wall is≤40 DEG C.
After boiler cold-state rinses qualification, before igniting, oxygen-eliminating device temperature is gradually increased to 150 DEG C or so, while opening NWL valve
Separator draining is recycled, HWL-1, HWL-2 valve is closed, circulating-heating 3-5 hours, improves feed temperature in water-cooling wall,
Process is as follows: water supply → oxygen-eliminating device → feed pump → height plus → boiler economizer → water-cooling wall → starting separator → NWL valve →
Oxygen-eliminating device.
Working medium and heat are recycled to oxygen-eliminating device using NWL valve, while improving boiler tube metal, are used to dry after reducing ignition of the boiler
The fuel consumption of furnace, to reduce unit starting consumption.
The utility model provides a kind of mode that the fuel-economizing of unit starting process is water-saving, before ignition of the boiler, utilizes system original
Some pipelines carry out working medium circulation, not only recycle a large amount of working medium and heat, but also significantly improve boiler tube metal temperature before lighting a fire,
The time for substantially reducing cold start baker saves great amount of fuel oil in the case where not increasing equipment investment.One-shot
More than 1000 ton of demineralized water can be saved, 10 tons of fuel oil of starting is saved.
Utility model has the advantages that carrying out working medium circulation using the original pipeline of system, not only before ignition of the boiler
A large amount of working medium and heat are recycled, and significantly improves boiler tube metal temperature before lighting a fire, substantially reduces cold start baker
Time saves great amount of fuel oil in the case where not increasing equipment investment.One-shot can save more than 1000 ton of demineralized water, section
About start 10 tons of fuel oil.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Specific embodiment
The preferred embodiment of the utility model is illustrated below, it should be understood that preferred embodiment described herein
It is only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, a kind of cycles, economized heating system, including oxygen-eliminating device, the oxygen-eliminating device pass through entrance of water-supplying pump valve
It is connected with feed pump pipeline, the feed pump is connected by feed pump outlet valve with high-pressure heater pipeline, and high-pressure heater is
One vapor-water heat exchanger, surface-type heat exchange enter the water supply of boiler by extracted steam from turbine heating, described to improve boiler efficiency
Height, which adds, to be connected by high-pressure heater group outlet electric valve with boiler economizer pipeline, and the boiler economizer is gone out by economizer
Mouth header is connected with water-cooling wall, and the water-cooling wall is connected (welding) with separator, and the separator passes through NWL valve and the deoxygenation
Device pipeline is connected.
The temperature of the oxygen-eliminating device is >=100 DEG C.The temperature of the water-cooling wall is≤40 DEG C.
After boiler cold-state rinses qualification, before igniting, oxygen-eliminating device temperature is gradually increased to 100 DEG C or more, while opening NWL valve
Separator draining is recycled, HWL-1, HWL-2 valve is closed, circulating-heating 3-5 hours, improves feed temperature in water-cooling wall,
Process is as follows: water supply → oxygen-eliminating device → feed pump → height plus → boiler economizer → water-cooling wall → starting separator → NWL valve →
Oxygen-eliminating device.
Working medium and heat are recycled to oxygen-eliminating device using NWL valve, while improving boiler tube metal, are used to dry after reducing ignition of the boiler
The fuel consumption of furnace, to reduce unit starting consumption.
The utility model provides a kind of mode that the fuel-economizing of unit starting process is water-saving, before ignition of the boiler, utilizes system original
Some pipelines carry out working medium circulation, not only recycle a large amount of working medium and heat, but also significantly improve boiler tube metal temperature before lighting a fire,
The time for substantially reducing cold start baker saves great amount of fuel oil in the case where not increasing equipment investment.One-shot
More than 1000 ton of demineralized water can be saved, 10 tons of fuel oil of starting is saved.
Claims (3)
1. a kind of cycles, economized heating system, it is characterised in that: including oxygen-eliminating device, the oxygen-eliminating device is connected with feed pump pipeline,
The feed pump is connected with high-pressure heater pipeline, and the high-pressure heater pipeline is connected with boiler economizer pipeline, the pot
Furnace economizer is connected with water-cooling wall, and the water-cooling wall is connected with separator, and the separator passes through NWL valve and the oxygen-eliminating device pipe
Road is connected.
2. a kind of cycles, economized heating system according to claim 1, it is characterised in that: the temperature of the oxygen-eliminating device be >=
100℃。
3. a kind of cycles, economized heating system according to claim 1 or 2, it is characterised in that: the temperature of the water-cooling wall
It is≤40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855381.7U CN208504353U (en) | 2017-12-27 | 2017-12-27 | A kind of cycles, economized heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855381.7U CN208504353U (en) | 2017-12-27 | 2017-12-27 | A kind of cycles, economized heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208504353U true CN208504353U (en) | 2019-02-15 |
Family
ID=65302938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721855381.7U Expired - Fee Related CN208504353U (en) | 2017-12-27 | 2017-12-27 | A kind of cycles, economized heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208504353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649312A (en) * | 2020-06-08 | 2020-09-11 | 上海申能电力科技有限公司 | System and method for starting adjacent steam heating boiler of drum boiler |
-
2017
- 2017-12-27 CN CN201721855381.7U patent/CN208504353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649312A (en) * | 2020-06-08 | 2020-09-11 | 上海申能电力科技有限公司 | System and method for starting adjacent steam heating boiler of drum boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20191227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |