CN201443751U - Waste heat boiler power failure protector - Google Patents
Waste heat boiler power failure protector Download PDFInfo
- Publication number
- CN201443751U CN201443751U CN2009200315218U CN200920031521U CN201443751U CN 201443751 U CN201443751 U CN 201443751U CN 2009200315218 U CN2009200315218 U CN 2009200315218U CN 200920031521 U CN200920031521 U CN 200920031521U CN 201443751 U CN201443751 U CN 201443751U
- Authority
- CN
- China
- Prior art keywords
- waste heat
- heat boiler
- stop valve
- power failure
- main steam
- 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.)
- Expired - Fee Related
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
A waste heat boiler power failure protector consists of an emptying chimney (1), a stop valve I (2), a main steam pipeline (3), a stop valve IV (7), a regulating valve (8), a small-sized steam turbine (9) and a boiler water-feeding pump (10). The waste heat boiler power failure protector is characterized in that: the main steam pipeline (3) is fixedly connected with a stop valve II (4); the lower end of the main steam pipeline (3) is fixedly connected with a pressure-reducing valve (5) and a stop valve III (6) by pipelines and the pressure-reducing valve (5) and the stop valve III (6) are connected with each other in parallel; and therefore, the waste heat boiler power failure protector can solve the problem that water can not be fed into the waste heat boiler in time due to sudden power failure, effectively prevent the explosion accidents of the waste heat boiler as the waste heat boiler boils is dry, have higher energy utilization ratio, simple structure, strong applicability and steady working, and reduce production cost, and is applicable to the use of the gold smelting industry.
Description
Technical field:
The utility model relates to a kind of protective device, and particularly a kind of waste heat boiler cut protection device belongs to waste heat boiler safe practice field.
Background technology:
At present the waste heat boiler of operation is divided into two kinds of forced circulation mode and natural circulation modes, when operation, if run into unexpected power failure, the waste heat of material makes operating mode medium (water) vaporization in waste heat boiler and the roaster, the steam pressure of waste heat boiler raises rapidly, if can not moisturizing in waste heat boiler in time, can cause waste heat boiler to dryout, cause convection tube, water-cooling wall and the roaster water jacket of waste heat boiler all to burn out.After if boiler dryouies, carry out moisturizing again, can vaporize suddenly because of the operating mode medium, cause the waste heat boiler blast.Though some waste heat boiler has increased the stand-by boiler feed pump when design, increased stand-by power supply, under the situation of bad weather, still can run into suddenly all power failures, can cause boiler to dryout infringement equipment equally.
Summary of the invention:
The purpose of this utility model is exactly will provide a kind of can solve the problem that can't in time supply water to waste heat boiler that has a power failure suddenly and cause; effectively prevention is dryouied because of waste heat boiler; and cause boiler explosion accident; simple in structure; applicability is strong; energy utilization rate is higher, working stability, the waste heat boiler cut protection device that reduces production costs.
The purpose of this utility model is achieved in that a kind of waste heat boiler cut protection device; form by emptying chimney, stop valve I, main steam pipe, stop valve IV, control valve, small steam turbine, boiler feed pump; it is characterized in that fixedly connected stop valve II on the described main steam pipe; the lower end of main steam pipe is by the fixedly connected pressure-reducing valve of pipeline, stop valve III, and pressure-reducing valve and stop valve III are connected in parallel.
The utility model compared with prior art has the following advantages:
Owing to adopt fixedly connected stop valve II on the main steam pipe, the lower end of main steam pipe is by the fixedly connected pressure-reducing valve of pipeline, stop valve III, the version that pressure-reducing valve and stop valve III are connected in parallel, thereby can solve can't effectively preventing to dryout of having a power failure suddenly and cause in time to the problem of boiler water supply because of waste heat boiler, and cause boiler explosion accident, energy utilization rate is higher, and is simple in structure, and applicability is strong, working stability reduces production costs.
Description of drawings:
Figure: be the utility model concrete structure schematic diagram
1, emptying chimney 2, stop valve I 3, main steam pipe 4, stop valve II5, pressure-reducing valve 6, stop valve III 7, stop valve IV 8, control valve 9, small steam turbine 10, boiler feed pump
The specific embodiment:
Fixedly connected stop valve II 4 on the main steam pipe 3, the lower end of main steam pipe 3 is by the fixedly connected pressure-reducing valve 5 of pipeline, stop valve III 6, and pressure-reducing valve 5 is connected in parallel with stop valve III 6.
During use, the pressure of pressure-reducing valve is transferred at 0.5MPa, stop valve III and stop valve IV keep full-gear, when the steam generator system external world has a power failure suddenly, open control valve rapidly, close stop valve II, utilize residue vapor drive small steam turbine in the waste heat boiler, small steam turbine drives boiler feed pump and supplies water in waste heat boiler, can use.
Claims (1)
1. waste heat boiler cut protection device; form by emptying chimney (1), stop valve I (2), main steam pipe (3), stop valve IV (7), control valve (8), small steam turbine (9), boiler feed pump (10); it is characterized in that upward fixedly connected stop valve II (4) of described main steam pipe (3); the lower end of main steam pipe (3) is by the fixedly connected pressure-reducing valve of pipeline (5), stop valve III (6), and pressure-reducing valve (5) is connected in parallel with stop valve III (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200315218U CN201443751U (en) | 2009-08-05 | 2009-08-05 | Waste heat boiler power failure protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200315218U CN201443751U (en) | 2009-08-05 | 2009-08-05 | Waste heat boiler power failure protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443751U true CN201443751U (en) | 2010-04-28 |
Family
ID=42548431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200315218U Expired - Fee Related CN201443751U (en) | 2009-08-05 | 2009-08-05 | Waste heat boiler power failure protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775819A (en) * | 2014-02-26 | 2014-05-07 | 章礼道 | System for once-through boiler start-up drainage water and low voltage bypass shared energy dissipater |
-
2009
- 2009-08-05 CN CN2009200315218U patent/CN201443751U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775819A (en) * | 2014-02-26 | 2014-05-07 | 章礼道 | System for once-through boiler start-up drainage water and low voltage bypass shared energy dissipater |
| CN103775819B (en) * | 2014-02-26 | 2016-06-01 | 章礼道 | DC furnace start-up drainage and low voltage bypass share the system of energy dissipating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20100805 |