CN204254588U - For improving the tube connector of economizer water temperature - Google Patents
For improving the tube connector of economizer water temperature Download PDFInfo
- Publication number
- CN204254588U CN204254588U CN201420722748.8U CN201420722748U CN204254588U CN 204254588 U CN204254588 U CN 204254588U CN 201420722748 U CN201420722748 U CN 201420722748U CN 204254588 U CN204254588 U CN 204254588U
- Authority
- CN
- China
- Prior art keywords
- economizer
- square ring
- valve
- ring pipe
- improving
- 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.)
- Active
Links
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
For improving the tube connector of economizer water temperature.Existing subcritical 300MW, 600MW boiler does not possess denitration condition.When boiler at low load runs, economizer exit flue-gas temperature can not meet the minimum continuous running temperature of normal denitration.The utility model composition comprises: economizer shunt valve (1), and described economizer shunt valve one end is connected with economizer exit header (2), and the other end is connected with economizer entrance header (3); Described economizer shunt valve comprises two and half square ring pipes, between half square ring pipe described in two, electric control valve (4) is installed, half described square ring pipe is hung by erecting by overhang (5), half described square ring pipe is provided with vent valve (6), drain valve (7), and the pipe of the vertical layout of half described square ring pipe is provided with guider (8).The utility model is for improving economizer water temperature.
Description
technical field:
the utility model relates to a kind of tube connector for improving economizer water temperature.
background technology:
according to national environmental protection policy and requirement, out of stock device is installed to existing thermal power generation unit.Existing subcritical 300MW, 600MW boiler does not possess denitration condition.When boiler at low load runs, economizer exit flue-gas temperature can not meet the minimum continuous running temperature of normal denitration.Therefore, in order to meet denitration requirement, just need to increase economizer exit flue-gas temperature.
utility model content:
the purpose of this utility model is to provide a kind of tube connector for improving economizer water temperature.
the purpose of this utility model is achieved in that
for improving a tube connector for economizer water temperature, its composition comprises: economizer shunt valve, and described economizer shunt valve one end is connected with economizer exit header, and the other end is connected with economizer entrance header.
described economizer shunt valve comprises two and half square ring pipes, between half square ring pipe described in two, electric control valve is installed, half described square ring pipe is hung by erecting by overhang, half described square ring pipe is provided with vent valve, drain valve, and the pipe of the vertical layout of half described square ring pipe is provided with guider.
beneficial effect:
1. boiler load lower than 60% time, economizer exit cigarette temperature can not meet the minimum continuous running temperature of normal denitration lower than 316 DEG C.And the utility model is after setting up economizer shunt valve, economizer exit water temperature can increase by 10 ~ 15 DEG C (by bypassing the water of 25-20%), and economizer exit cigarette temperature can improve 30 DEG C, meets out of stock requirement.
. the utility model bends near boiler structure platform two benefits:
(1) straight section due to pipeline is longer, and suitable bend pipe trend, improves the flexibility of pipe.
pipe level direction mounted valve near boiler structure platform, convenient operation.
the utility model is equipped with guider and erecting by overhang in economizer bypass conduit, has both played the effect of fixed-piping, and vibration problems when simultaneously also preventing conduit running, enhances the stability of conduit running and the service life of pipeline.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 is side views of accompanying drawing 1.
detailed description of the invention:
embodiment 1:
for improving a tube connector for economizer water temperature, its composition comprises: economizer shunt valve 1, and described economizer shunt valve one end is connected with economizer exit header 2, and the other end is connected with economizer entrance header 3.
embodiment 2:
the tube connector for improving economizer water temperature described in embodiment 1, described economizer shunt valve comprises two and half square ring pipes, between half square ring pipe described in two, electric control valve 4 is installed, half described square ring pipe is hung by erecting by overhang 5, half described square ring pipe is provided with vent valve 6, drain valve 7, and the pipe of the vertical layout of half described square ring pipe is provided with guider 8.
embodiment 3:
the described tube connector for improving economizer water temperature, through repeatedly organizing experts' evaluation and carrying out feasibility analysis, analysis result thinks that it is feasible for setting up economizer bypass.When boiler load is normal, economizer bypass keeps closed condition.The flow of economizer bypass is determined according to SCR minimum steady provisioning request and underload economizer inlet port flue-gas temperature.The aperture position of economizer bypass is in economizer entrance header to economizer exit header exit, and boiler left and right sides installs a bypass respectively, and pipeline specifications is Φ 219 × 18, material 20G.
embodiment 4:
the described tube connector for improving economizer water temperature, the every bar bypass of economizer is all provided with electric control valve, and pipeline is also provided with hydrophobic and bleeder pipe joint, arranges temperature point 9 in economizer exit header simultaneously.When boiler runs at full capacity, economizer exit cigarette temperature can reach the temperature needed for denitration, load lower than 60% time, then can not meet the demands.Thus boiler at full capacity time, can shunt valve be enabled, therefore in bypass, add electric control valve.When the operation of reality, can according to actual conditions switch on/off electric control valve.When boiler is out of service, the steam water interface in pipeline be emitted, in bypass, be therefore provided with valve that is hydrophobic and venting.When bypass runs, conveniently detect the temperature of economizer exit header, be provided with two temperature points respectively in both sides, economizer exit place, electric control valve can be regulated according to carrying out practically situation, regulate bypass flow.
Claims (2)
1. for improving a tube connector for economizer water temperature, its composition comprises: economizer shunt valve, is characterized in that: described economizer shunt valve one end is connected with economizer exit header, and the other end is connected with economizer entrance header; Described economizer shunt valve comprises two and half square ring pipes.
2. the tube connector for improving economizer water temperature according to claim 1, it is characterized in that: between half square ring pipe described in two, electric control valve is installed, half described square ring pipe is hung by erecting by overhang, half described square ring pipe is provided with vent valve, drain valve, and the pipe of the vertical layout of half described square ring pipe is provided with guider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722748.8U CN204254588U (en) | 2014-11-27 | 2014-11-27 | For improving the tube connector of economizer water temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722748.8U CN204254588U (en) | 2014-11-27 | 2014-11-27 | For improving the tube connector of economizer water temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204254588U true CN204254588U (en) | 2015-04-08 |
Family
ID=52958889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420722748.8U Active CN204254588U (en) | 2014-11-27 | 2014-11-27 | For improving the tube connector of economizer water temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204254588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406155A (en) * | 2014-11-27 | 2015-03-11 | 哈尔滨锅炉厂有限责任公司 | Connecting pipe for improving water temperature of coal economizer |
-
2014
- 2014-11-27 CN CN201420722748.8U patent/CN204254588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406155A (en) * | 2014-11-27 | 2015-03-11 | 哈尔滨锅炉厂有限责任公司 | Connecting pipe for improving water temperature of coal economizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105909326A (en) | Steam extraction heat supply structure and heat supply system of power plant steam unit | |
| CN204254588U (en) | For improving the tube connector of economizer water temperature | |
| CN109140234A (en) | A kind of optimization method and device of heating steam pipe network | |
| CN203453778U (en) | Tracing pipe for condensate water drainer | |
| CN104406155A (en) | Connecting pipe for improving water temperature of coal economizer | |
| CN104295899B (en) | 8-well-type heating and separating integrated device | |
| CN205991197U (en) | A kind of gas collecting apparatus for ship tail gas desulphurization system | |
| CN203822362U (en) | Integral air curtain device | |
| CN204513342U (en) | Low-pressure heater drainage control system | |
| CN204254580U (en) | A kind of steam accumulator control device of quick response | |
| CN202834490U (en) | Connecting structure of water air conditioner heat exchanger water inlet and outlet pipes | |
| CN204513343U (en) | High-pressure heater drainage control system | |
| CN103968400A (en) | Smoke duct and two-in-one converging pipe thereof | |
| CN205504431U (en) | Pipe joints's device with avoid wearing and tearing | |
| CN204629650U (en) | A kind of band flowmeter water knockout drum | |
| CN204988381U (en) | It is experimental with condensate flow measuring device among flow nozzle access power plant DCS | |
| CN202853151U (en) | Vacuum-tube solar water heater | |
| CN207335056U (en) | Bushing type gives exhaust system shunting means | |
| CN203823786U (en) | Double-barreled chimney inlet flue structure of thermal power plant | |
| CN202974345U (en) | Water pipe flow measuring device | |
| CN205825188U (en) | Electric intelligent effusion meter water knockout drum | |
| CN208810404U (en) | A kind of Coating Pretreatment exhaust system with drainage system | |
| CN202087384U (en) | Sealing air system of medium-speed coal mill | |
| CN205320441U (en) | Aluminium foil workshop power cooling device | |
| CN204114911U (en) | A kind of flue gas deep cooling type oxygen-eliminating device with dedusting function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |