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CN-224229974-U - High-efficiency energy-saving steam boiler

CN224229974UCN 224229974 UCN224229974 UCN 224229974UCN-224229974-U

Abstract

The utility model relates to a high-efficiency energy-saving steam boiler which comprises an air inlet device, a combustion mechanism and an exhaust mechanism, wherein the combustion mechanism comprises a water inlet bin, a combustion layer and a steam storage bin which are sequentially arranged from bottom to top, the combustion layer comprises a combustion bin and an isolation bin, a plurality of steam guide pipes which are vertically communicated with the water inlet bin and the steam storage bin and are arranged at intervals are arranged in the combustion bin, membrane walls which are used for separating the isolation bin from the combustion bin are arranged in the combustion layer, the membrane walls are used for guiding high-temperature air to flow to the exhaust mechanism, and the exhaust mechanism comprises a vertically arranged flue and a multi-layer preheating device which is arranged in the flue and is communicated with the water inlet bin through a pipeline. The utility model has reasonable structural design, and the isolation bin with the mode wall is used for isolating and forming the inner part and the outer wall, so that the combustion bin is isolated and protected, the high-temperature outward diffusion is reduced, the temperature in the combustion bin is ensured, the full utilization of the energy of the equipment is realized, the full heating of water vapor is further realized, and the heat exchange efficiency of the equipment is improved.

Inventors

  • GUAN ZHONGHAI
  • LIU ZHONGYING
  • WANG WENMING
  • Yang Gaozhen

Assignees

  • 河南乾丰暖通科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250527

Claims (9)

  1. 1. The efficient energy-saving steam boiler is characterized in that the combustion mechanism (1) comprises a water inlet bin (11), a combustion layer (12) and a steam storage bin (13) which are sequentially arranged from bottom to top, the combustion layer (12) comprises a combustion bin (121) communicated with the air inlet device (2) and the exhaust mechanism (3) and an isolation bin (122) for isolating the combustion bin (121) from the outer wall, a plurality of steam guide pipes (123) which are vertically communicated with the water inlet bin (11) and the steam storage bin (13) and are arranged at intervals are arranged in the combustion bin (121), two membrane walls (124) which are used for separating the isolation bin (122) from the combustion bin (121) are arranged in the combustion layer (12), the membrane walls (124) are used for guiding high-temperature air to flow towards the exhaust mechanism (3), the exhaust mechanism (3) comprises a vertically arranged flue (31), and a plurality of layers of preheating devices (5) communicated with the water inlet bin (11) through pipelines are arranged in the flue (31).
  2. 2. The efficient and energy-saving steam boiler according to claim 1, wherein the combustion bin (121) is provided with a convex inner cavity, the combustion bin (121) is sequentially provided with a combustion section (1211), a clearance section (1212) and a tail heat section (1213) along the direction close to the exhaust mechanism (3), and the distance between adjacent steam guide pipes (123) is sequentially enlarged along the directions of the combustion section (1211), the clearance section (1212) and the tail heat section (1213).
  3. 3. A steam boiler according to claim 1, wherein the membrane wall (124) comprises the steam guide pipes (123) arranged at the side and a sealing plate (1241) connecting two adjacent steam guide pipes (123).
  4. 4. The efficient and energy-saving steam boiler as set forth in claim 2, wherein the outer walls of said steam guide pipes (123) in said combustion section (1211) and said gap section (1212) are smooth wall surfaces, and spiral fins are provided on the outer walls of said steam guide pipes (123) in said tail heat section (1213).
  5. 5. The efficient and energy-saving steam boiler as set forth in claim 1, wherein two sides of said combustion chamber (121) are respectively provided with one said isolation chamber (122), and at least 1 settling tube (1221) vertically communicating said steam storage chamber (13) with said water inlet chamber (11) is provided in each said isolation chamber (122).
  6. 6. The efficient energy-saving steam boiler according to claim 1 is characterized in that the top of the steam storage bin (13) is communicated with a steam-water separator (4) through a vertical vent pipe (131), an inverted V-shaped flow gathering plate (41) fixed on the top wall of the steam-water separator (4) through a hanging bracket (42) is arranged in the steam-water separator, the flow gathering plate (41) is obliquely upwards arranged along the direction close to the exhaust mechanism (3), and a flow guide pipe (43) communicated with the water inlet bin (11) is arranged at one side of the bottom of the steam-water separator (4) close to the air inlet device (2).
  7. 7. The efficient energy-saving steam boiler according to claim 1, wherein the air inlet device (2) comprises a premixing fan (21) communicated with the combustion bin (121) through a pipeline, an air inlet pipe (22) is communicated with an air inlet of the premixing fan (21), an air inlet (23) which is communicated with a fuel gas pipeline and controlled by a valve is arranged on the air inlet pipe (22), and a filter (24) communicated with external air flow is arranged on the air inlet pipe (22).
  8. 8. The efficient energy-saving steam boiler according to claim 1, wherein a bend (32) which is communicated with the inner cavity of a combustion bin (121) is arranged at the bottom of the flue (31), the preheating device (5) comprises a plurality of layers of preheating finned tubes (51) which are communicated end to end and are arranged at intervals, a water inlet pipe (52) which is communicated with inlets of the plurality of preheating finned tubes (51) and a water outlet pipe (53) which is communicated with lower openings of the plurality of preheating finned tubes (51), a water inlet (54) which is communicated with an external water source is arranged on the water inlet pipe (52), the water inlet pipe (52) is arranged at the upper part of the side wall of the flue (31), and the water outlet pipe (53) is communicated with the water inlet bin (11) through a pipeline.
  9. 9. A high efficiency energy saving steam boiler according to claim 1, wherein the top of the steam storage bin (13) is provided with an arc-shaped top.

Description

High-efficiency energy-saving steam boiler Technical Field The utility model relates to the field of steam equipment, in particular to a high-efficiency energy-saving steam boiler. Background Steam boilers are mechanical devices that utilize the thermal energy of fuel or other energy sources to heat water into hot water or steam, most of which are currently in use as gas-fired steam boilers. The Chinese patent document of the authorized bulletin No. CN221839686U discloses a water pipe type waste heat steam boiler, which comprises a boiler body, an exhaust pipe and a waste heat recovery component, wherein the waste heat recovery component comprises a heat exchange pipe, a water inlet pipe, an water outlet pipe, a shell, a smoke pipe, an air outlet pipe, an upper plate and a lower plate, a combustion chamber and a furnace liner are arranged in the boiler body, combusted smoke is discharged through the exhaust pipe, the discharged smoke enters the shell, the smoke is split through the smoke pipe on the lower plate, the heat exchange pipe is arranged at the outer side of each smoke pipe, water is introduced through the water inlet pipe to absorb heat, then the water absorbing heat is discharged and stored through the water outlet pipe, the plurality of heat exchange pipes are communicated with each other, the smoke is gathered together through the gap between the upper plate and the shell, the smoke is discharged from the air outlet pipe, the heat exchange pipe and the smoke are not in direct contact with each other, the service life of the conventional device is prolonged, and the problem that impurities in the smoke are easy to be blocked due to adhesion to a filter plate in the long-time use process, and the heating efficiency is low is solved. However, the existing steam boiler has the problems of insufficient combustion and uneven heating, and the energy consumption of the steam boiler is high. Disclosure of utility model The utility model aims to provide a high-efficiency energy-saving steam boiler, which is used for solving the problems of insufficient combustion, uneven heating and higher energy consumption of the existing steam boiler. The utility model provides a high-efficiency energy-saving steam boiler, which comprises an air inlet device, a combustion mechanism and an exhaust mechanism, wherein the combustion mechanism comprises a water inlet bin, a combustion layer and a steam storage bin which are sequentially arranged from bottom to top, the combustion layer comprises a combustion bin communicated with the air inlet device and the exhaust mechanism and an isolation bin isolating the combustion bin from the outer wall, a plurality of steam guide pipes which are vertically communicated with the water inlet bin and the steam storage bin and are arranged at intervals are arranged in the combustion bin, two membrane type walls which are used for separating the isolation bin from the combustion bin are arranged in the combustion layer, the membrane type walls are used for guiding high-temperature gas to flow to the exhaust mechanism, and the exhaust mechanism comprises a vertically arranged flue, and a plurality of layers of preheating devices communicated with the water inlet bin through pipelines are arranged in the flue. The utility model provides a high-efficiency energy-saving steam boiler, which also has the following technical characteristics: The combustion bin is provided with a convex inner cavity, the combustion bin is sequentially provided with a combustion section, a clearance section and a tail heat section along the direction close to the exhaust mechanism, and the distance between adjacent steam guide pipes is sequentially enlarged along the directions of the combustion section, the clearance section and the tail heat section. Further, the membrane wall is formed by the steam guide pipes arranged at the side and a sealing plate for connecting the adjacent two steam guide pipes. Further, the outer walls of the steam guide pipes in the combustion section and the clearance section are smooth wall surfaces, and spiral fins are arranged on the outer walls of the steam guide pipes in the tail heat section. Further, two sides of the combustion bin are respectively provided with one isolation bin, and each isolation bin is internally provided with at least 1 settling tube which is vertically communicated with the steam storage bin and the water inlet bin. The top of the steam-water separator is communicated with the steam-water separator through a vertical vent pipe, an inverted V-shaped flow gathering plate fixed on the top wall of the steam-water separator through a hanging bracket is arranged in the steam-water separator, the flow gathering plate is obliquely upwards arranged along the direction close to the exhaust mechanism, and a flow guide pipe communicated with the water inlet bin is arranged at one side of the bottom of the steam-water separator close to the air inlet device. The air