CN209876875U - Through-flow steam boiler - Google Patents
Through-flow steam boiler Download PDFInfo
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- CN209876875U CN209876875U CN201920533105.1U CN201920533105U CN209876875U CN 209876875 U CN209876875 U CN 209876875U CN 201920533105 U CN201920533105 U CN 201920533105U CN 209876875 U CN209876875 U CN 209876875U
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Abstract
The utility model discloses a high-thermal efficiency and safe through-flow steam boiler, which comprises a base, a furnace body is arranged on the base, an annular lower collecting box is arranged at the lower part in the furnace body, a water inlet pipe is arranged on the lower collecting box, the lower collecting box is communicated with an annular upper collecting box arranged at the upper part in the furnace body through an inner circle and an outer circle of arc membrane type water-cooled wall, the opening of the inner circle arc membrane type water-cooled wall is arranged opposite to the opening of the outer circle arc membrane type water-cooled wall, a smoke outlet is arranged at the position of the middle part of the side wall of the furnace body far away from the opening of the outer circle arc membrane type water-cooled wall, a burning port is arranged at the upper part of the furnace body, a burner is arranged at the upper part of the furnace body, a steam output pipe is arranged at the upper collecting box, a safety valve is also arranged on the upper collecting, the water outlet pipe on the economizer is connected with the water inlet pipe on the lower header.
Description
Technical Field
The utility model relates to a through-flow steam boiler.
Background
The tubular steam boiler is composed of long tubes arranged in a designed way, a water feeding pump feeds water at one end of each tube, and the water passes through a heating water section and an evaporation section in the tubes to generate required steam from a header on the tubes. The through-flow boiler has no boiler barrel and consists of boiler body, steam-water separator, water pump, oil pump, combustor and other parts. The main characteristic is that the steam is generated quickly, but because the water capacity is small, the energy storage is small, and the boiler pressure changes greatly along with the load; the tubes can be freely arranged, so the structure is compact, the combustion mode is special, the volume is greatly reduced, but the heat load of the boiler furnace volume is large, water is heated to be evaporated in one tube, the circulation rate is low, heat transfer is deteriorated possibly, and failures such as tube explosion, fatigue crack and the like are generated, so the temperature of the tube wall is required to be strictly controlled within a safe working range. The boiler has compact structure and poor maintainability, and only needs to be replaced with a new boiler once being damaged.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provided is a safe tubular-flow steam boiler having high thermal efficiency.
For solving the technical problem, the utility model discloses the technical scheme who adopts does: a tubular steam boiler comprises a base, a boiler body is arranged on the base, an annular lower collecting box is arranged at the lower part in the boiler body, a water inlet pipe is arranged on the lower collecting box, the lower collecting box is communicated with an annular upper collecting box arranged at the upper part in the boiler body through an inner circular arc membrane water-cooling wall and an outer circular arc membrane water-cooling wall, a smoke outlet is arranged at the position, far away from the opening of the outer circular arc membrane water-cooling wall, in the middle of the side wall of the boiler body, combusted smoke escapes from the middle of the boiler body through the opening in the inner circular arc membrane water-cooling wall, bypasses the outer side of the inner circular arc membrane water-cooling wall, continues to flow through the outer side of the outer circular arc membrane water-cooling wall to reach the smoke outlet after passing through the opening in the outer circular arc membrane water-cooling wall, a combustion port is arranged at the upper, the steam output pipe is provided with a steam-water separator, the upper header is also provided with a safety valve, the bottom of the furnace body is provided with a blow-off pipe, the lower header is connected with a liquid level meter through a liquid level pipe, the liquid level meter is provided with three indicating liquid levels of highest, working and lowest, the furnace body is provided with a coal economizer communicated with a flue gas outlet, a water inlet pipe on the coal economizer is connected with a water pump, and a water outlet pipe on the coal economizer is connected with a water inlet pipe on the lower header.
As a preferable scheme, the periphery of the furnace body is provided with a heat preservation layer.
Preferably, refractory bricks are respectively covered on two sides of the outlet of the membrane water-cooled wall at the inner layer.
The utility model has the advantages that: the opening of the inner ring circular arc-shaped membrane water-cooled wall is opposite to the opening of the outer ring circular arc-shaped membrane water-cooled wall, a flue gas outlet is formed in the middle of the side wall of the furnace body at a position far away from the opening of the outer ring circular arc-shaped membrane water-cooled wall, and combusted flue gas escapes from the middle of the furnace body through the opening in the inner ring membrane water-cooled wall, bypasses the outer side of the inner ring membrane water-cooled wall, continues to flow through the outer side of the outer ring membrane water-cooled wall to reach the flue gas outlet after passing through the opening in; the furnace body is provided with a coal economizer communicated with the flue gas outlet, a water inlet pipe on the coal economizer is connected with a water pump, and a water outlet pipe on the coal economizer is connected with a water inlet pipe on the lower header; the waste heat is fully utilized to further improve the heat efficiency of the flue gas. Because the upper header is also provided with the safety valve, the pressure can be released in time when overpressure occurs, so as to ensure the use safety; because be connected with the level gauge through the liquid level pipe on the collection case down, be equipped with the highest, work, three minimum instruction liquid level on the level gauge, but the straight tube demonstrates the water level, and suitable water yield helps controlling pipe wall temperature in safe working range, avoids the water yield to transfinite and arouses equipment trouble.
Because the periphery of the furnace body is provided with the heat preservation layer, the heat is prevented from being dissipated rapidly, and the heat efficiency is further improved.
Because the two sides of the outlet of the inner membrane water-cooled wall are respectively covered with refractory bricks, cracking of the outlet caused by long-term impact of a heated flow is avoided, the safety of equipment is improved, and the service life is prolonged.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic view of the sectional structure of the furnace body.
Fig. 4 is a schematic view of the top cross-sectional structure of the furnace body of the present invention.
In fig. 1 to 4: 1. the boiler comprises a base, a boiler body, a heat preservation layer, a lower collecting tank, a water inlet pipe, a membrane water-cooling wall, an upper collecting tank, a flue gas outlet, a burner, a connecting piece, a steam output pipe, a steam-water separator, a safety valve, a discharge pipe, a liquid level meter, a coal economizer, a water pump and refractory bricks, wherein the boiler body comprises a boiler body 2, a heat preservation layer 3, a lower collecting tank 4, a water inlet pipe 5, a membrane water-cooling wall 6, an upper collecting tank 7, a flue gas outlet 8, a burner 9.
Detailed Description
The following describes in detail a specific embodiment of the present invention with reference to the drawings.
As shown in figures 1-4, the through-flow steam boiler comprises a base 1, a boiler body 2 is arranged on the base 1, and an insulating layer 3 is arranged on the periphery of the boiler body 2. An annular lower collection tank 4 is arranged at the lower part in the furnace body 2, a water inlet pipe 5 is arranged on the lower collection tank 4, the lower collection tank 4 is communicated with an annular upper collection tank 7 arranged at the upper part in the furnace body 2 through an inner circle of circular arc-shaped membrane water-cooled wall 6 and an outer circle of circular arc-shaped membrane water-cooled wall 6, an opening of the inner circle of circular arc-shaped membrane water-cooled wall 6 is opposite to an opening of the outer circle of circular arc-shaped membrane water-cooled wall 6, a flue gas outlet 8 is arranged at the position, far away from the opening of the outer circle of circular arc-shaped membrane water-cooled wall 6, the burning flue gas escapes from the middle part of the furnace body 2 through the opening of the inner circle of membrane water-cooled wall 6, flows around the outer side of the inner circle of membrane water-.
The upper portion of furnace body 2 is equipped with the burner port, furnace body 2 upper portion is equipped with connecting piece 10 of intercommunication furnace body 2 inner chamber, be equipped with combustor 9 on the connecting piece 10, upper header 7 upper portion is equipped with steam output tube 11, be equipped with catch water 12 on the steam output tube 11, still be equipped with relief valve 13 on the upper header 7, furnace body 2 bottom is equipped with blow off pipe 14, be connected with level gauge 15 through the level pipe on the lower header 4, be equipped with the highest, work, three minimum indication liquid level on the level gauge 15, be equipped with the economizer 16 that is linked together with exhanst gas outlet 8 on the furnace body 2, the inlet tube on the economizer 16 is connected with water pump 17, the outlet pipe on the economizer 16 is connected with inlet tube 5 on the lower.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, and are not intended to limit the present invention; it should be noted that, for those skilled in the art, without departing from the inventive concept, several changes and modifications can be made, which are within the scope of the present invention.
Claims (3)
1. The utility model provides a through-flow steam boiler, includes the base, is equipped with the furnace body on the base, and the lower part is equipped with annular collection box down in the furnace body, is equipped with the inlet tube on the collection box down, and the collection box is linked together its characterized in that on the annular collection box that sets up upper portion in the furnace body through the convex membrane wall of inside and outside two circles in the collection box down: the opening of the inner ring arc-shaped membrane type water-cooling wall is opposite to the opening of the outer ring arc-shaped membrane type water-cooling wall, a smoke outlet is arranged in the middle of the side wall of the furnace body at a position far away from the opening of the outer ring arc-shaped membrane type water-cooling wall, combusted smoke escapes from the middle of the furnace body through the opening in the inner ring membrane type water-cooling wall, and continuously flows through the outer side of the outer ring membrane type water-cooling wall to reach the smoke outlet after bypassing the outer side of the inner ring membrane type water-cooling wall through the opening in the outer ring membrane type water-cooling wall, a combustion port is arranged at the upper part of the furnace body, a connecting piece communicated with the inner cavity of the furnace body is arranged at the upper part of the furnace body, a combustor is arranged on the connecting piece, a steam output pipe is arranged at the upper part, the furnace body is provided with a coal economizer communicated with the smoke outlet, a water inlet pipe on the coal economizer is connected with a water pump, and a water outlet pipe on the coal economizer is connected with a water inlet pipe on the lower header.
2. A once-through steam boiler as claimed in claim 1, wherein: and the periphery of the furnace body is provided with a heat insulation layer.
3. A once-through steam boiler as claimed in claim 2, wherein: and refractory bricks are respectively coated on two sides of an outlet of the membrane water-cooled wall of the inner layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533105.1U CN209876875U (en) | 2019-04-19 | 2019-04-19 | Through-flow steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533105.1U CN209876875U (en) | 2019-04-19 | 2019-04-19 | Through-flow steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209876875U true CN209876875U (en) | 2019-12-31 |
Family
ID=68960746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920533105.1U Active CN209876875U (en) | 2019-04-19 | 2019-04-19 | Through-flow steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209876875U (en) |
-
2019
- 2019-04-19 CN CN201920533105.1U patent/CN209876875U/en active Active
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