CN203116047U - Water-feeding slag cooling system for efficient heat recycling boiler - Google Patents
Water-feeding slag cooling system for efficient heat recycling boiler Download PDFInfo
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- CN203116047U CN203116047U CN 201320043715 CN201320043715U CN203116047U CN 203116047 U CN203116047 U CN 203116047U CN 201320043715 CN201320043715 CN 201320043715 CN 201320043715 U CN201320043715 U CN 201320043715U CN 203116047 U CN203116047 U CN 203116047U
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- water
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- slag
- pump
- slag cooling
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Abstract
A water-feeding slag cooling system for an efficient heat recycling boiler comprises a pressure stabilizing hot water pump, a high temperature high pressure slag cooling machine and a boiler water feeding pump. A water-outlet pipe of a deaerator is in connecting communication with the pressure stabilizing hot water pump, a water-outlet pipe of the pressure stabilizing hot water pump is in connecting communication with the water-inlet end of the high temperature high pressure slag cooling machine, a water-outlet pipe of the high temperature high pressure slag cooling machine is in connecting communication with the boiler water-feeding pump, a water-outlet pipe of the boiler water-feeding pump is in connecting communication with a boiler, meanwhile a hot slag outlet at the bottom end of the boiler is in connecting communication with a hot slag inlet of the high temperature high pressure slag cooling machine, and the tail of the high temperature high pressure slag cooling machine is connected with a slag cooling device further connected with a cold slag discharging port. The water-feeing slag cooling system for the efficient heat recycling boiler is high in heat recovery rate, can effectively improve boiler heat efficiency, meanwhile solves the problem of insufficient cooling water of the slag cooling machine, greatly saves energy, and avoids environment pollution.
Description
Technical field
The utility model relates to the boiler technology field, refers to that specifically a kind of efficient thimble-tube boiler is to the water-cooled slag system.
Background technology
In boiler low calorie fuels combustion process, having a large amount of high temperature sludges produces, need a large amount of soft water water quench just can deposit, and inlet water temperature control export water temperature control in 70 ℃ in 30 ℃, hydro-thermal quality after the heating is low, heat can't take full advantage of, and the water yield can't fully satisfy the slag cooling, influences boiler operatiopn, cold slag cost height, energy waste is serious.
Summary of the invention
Technical problem to be solved in the utility model is: at the problem of above-mentioned prior art existence, and provide a kind of efficient thimble-tube boiler to the water-cooled slag system, take full advantage of the heat that the boiler high temperature slag produces, the heating boiler feedwater, comprehensive utilization, energy savings, avoid environmental pollution, the heat recovery rate height greatly improves boiler thermal output, solves the not enough problem of cold slag machine cooling water simultaneously.
The technical solution adopted in the utility model is:
A kind of efficient thimble-tube boiler is given the water-cooled slag system, comprise the voltage stabilizing heat-exchanger pump, the cold slag machine of HTHP and boiler feed pump, the oxygen-eliminating device outlet pipe connects the voltage stabilizing heat-exchanger pump, voltage stabilizing heat-exchanger pump outlet pipe connects the cold slag machine of HTHP water inlet end, the outlet pipe of the cold slag machine of HTHP connects boiler feed pump, the boiler feedwater water pump outlet pipe connects boiler, meanwhile, the warm sludge outlet of boiler bottom connects by the warm sludge import of hot slag tube and the cold slag machine of HTHP, the cold slag drive end unit of HTHP connects slag cooler, and slag cooler connects cold slag outlet again.
In the technique scheme, the inlet tube and outlet tube of voltage stabilizing heat-exchanger pump is separately installed with stop valve and check-valves, and the inlet tube and outlet tube of boiler feed pump is equipped with stop valve.
Operation principle:
The utility model feeds water with oxygen-eliminating device water cooling slag and heating boiler.Oxygen-eliminating device water (105 degree) enters the voltage stabilizing heat-exchanger pump, and the outlet of voltage stabilizing heat-exchanger pump keeps certain pressure, and band presses hot water (105 ℃) to enter the cold slag machine of HTHP (pressure-bearing is greater than 1Mpa), and water is heated to 150 ℃ by high temperature sludge, enters boiler by boiler feed pump again.According to the cold slag machine outlet of HTHP water temperature the boiler feed pump inlet pressure is set, by voltage stabilizing heat-exchanger pump frequency converter regulation and control boiler feed pump inlet pressure, guarantees safe and stable operation.The warm sludge outlet of boiler bottom connects by the warm sludge import of hot slag tube and HTHP slag cooler, HTHP slag cooler afterbody connects common slag cooler, discharge by cold slag outlet slag cooling back, and cooling water system and the feed water system of boiler of the cold slag machine of HTHP connect.
System flow:
1, boiler feedwater flow process:
The cold slag machine-boiler feed pump of oxygen-eliminating device soft water-voltage stabilizing heat-exchanger pump-HTHP-boiler
2, slag flow process:
The cold slag machine of warm sludge-HTHP-common cold slag machine-cold slag.
The utility model mainly adopts the voltage stabilizing heat-exchanger pump of the cold slag machine of HTHP and band voltage stabilizing control system.Characteristics are:
1, adopts the cold slag machine of HTHP, the requirement of the temperature after the adaptation boiler feedwater heats up and the feed pump inlet pressure of boiler.
2, the voltage stabilizing heat-exchanger pump of band voltage stabilizing control system is kept the feed pump inlet pressure, prevents the feed pump cavitation erosion of boiler.
3, take full advantage of the feedwater of boiler high temperature heat of slags heating boiler, heat recovery efficiency reaches 90%, and energy savings is avoided environmental pollution, satisfies the water yield demand of cold slag machine cooling water simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation
The accompanying drawing marking explanation:
The cold slag machine of 1-HTHP, 2-voltage stabilizing heat-exchanger pump, 3-boiler feed pump, 4-stop valve, 5-check-valves, the import of 6-warm sludge, the cold slag outlet of 7-.
The specific embodiment
Referring to Fig. 1, the efficient thimble-tube boiler of the utility model is given the water-cooled slag system, comprise voltage stabilizing heat-exchanger pump 2, the cold slag machine 1 of HTHP and boiler feed pump 3, the oxygen-eliminating device outlet pipe connects voltage stabilizing heat-exchanger pump 2, voltage stabilizing heat-exchanger pump outlet pipe connects cold slag machine 1 water inlet end of HTHP, the outlet pipe of the cold slag machine of HTHP connects boiler feed pump 3, the boiler feedwater water pump outlet pipe connects boiler, meanwhile, the warm sludge outlet of boiler bottom connects by the warm sludge import 6 of hot slag tube and the cold slag machine of HTHP, the cold slag drive end unit of HTHP connects slag cooler, and slag cooler connects cold slag outlet 7 again.
In the technique scheme, the inlet tube and outlet tube of voltage stabilizing heat-exchanger pump is separately installed with stop valve 4 and check-valves 5, and the inlet tube and outlet tube of boiler feed pump is equipped with stop valve 4.
Claims (2)
1. an efficient thimble-tube boiler is given the water-cooled slag system, it is characterized in that: comprise the voltage stabilizing heat-exchanger pump, the cold slag machine of HTHP and boiler feed pump, the oxygen-eliminating device outlet pipe connects the voltage stabilizing heat-exchanger pump, voltage stabilizing heat-exchanger pump outlet pipe connects the cold slag machine of HTHP water inlet end, the outlet pipe of the cold slag machine of HTHP connects boiler feed pump, the boiler feedwater water pump outlet pipe connects boiler, meanwhile, the warm sludge outlet of boiler bottom connects by the warm sludge import of hot slag tube and the cold slag machine of HTHP, the cold slag drive end unit of HTHP connects slag cooler, and slag cooler connects cold slag outlet again.
2. efficient thimble-tube boiler according to claim 1 is given the water-cooled slag system, and it is characterized in that: the inlet tube and outlet tube of voltage stabilizing heat-exchanger pump is separately installed with stop valve and check-valves, and the inlet tube and outlet tube of boiler feed pump is equipped with stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043715 CN203116047U (en) | 2013-01-28 | 2013-01-28 | Water-feeding slag cooling system for efficient heat recycling boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043715 CN203116047U (en) | 2013-01-28 | 2013-01-28 | Water-feeding slag cooling system for efficient heat recycling boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203116047U true CN203116047U (en) | 2013-08-07 |
Family
ID=48896385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320043715 Expired - Lifetime CN203116047U (en) | 2013-01-28 | 2013-01-28 | Water-feeding slag cooling system for efficient heat recycling boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203116047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444584A (en) * | 2015-12-23 | 2016-03-30 | 中国水利水电第八工程局有限公司 | Slag waste heat recycling device |
-
2013
- 2013-01-28 CN CN 201320043715 patent/CN203116047U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444584A (en) * | 2015-12-23 | 2016-03-30 | 中国水利水电第八工程局有限公司 | Slag waste heat recycling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |