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CN-224229973-U - Heat exchange furnace body of steam boiler

CN224229973UCN 224229973 UCN224229973 UCN 224229973UCN-224229973-U

Abstract

The utility model relates to a heat exchange furnace body of a steam boiler, wherein two sides of the heat exchange furnace body are respectively connected with an air inlet device and an air exhaust mechanism, the heat exchange furnace body comprises an air 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 which is communicated with the air inlet device and the air exhaust mechanism, an isolation bin which is used for isolating the combustion bin from the outer wall, a plurality of steam guide pipes which are vertically communicated with the air 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 isolating the isolation bin from the combustion bin are arranged in the combustion bin, the membrane type walls are used for guiding high-temperature air to flow to the air exhaust mechanism, and the combustion bin is provided with a convex inner cavity which is gradually enlarged and is close to the air exhaust mechanism. The utility model has reasonable structural design, by arranging the convex space in the combustion bin and arranging the narrower air duct at the ignition port, the high-temperature air flow is guided to pass through quickly, and the larger space is arranged at the position far away from the ignition port, so that the retention time of the high-temperature air flow is increased, the balance of the heating efficiency of the front space and the rear space in the combustion bin is realized, and the loss of local high temperature to equipment is reduced.

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 (7)

  1. 1. The heat exchange furnace body of the steam boiler is characterized in that the furnace body (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) which is communicated with the water inlet device (2) and the steam storage bin (13) and an isolation bin (122) which is used 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) and 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 steam storage bin (3), and convex inner cavities which are gradually enlarged near the air storage bin (3) are arranged in the combustion bin (121).
  2. 2. The heat exchange furnace body of the steam boiler according to claim 1, wherein the combustion bin (121) sequentially comprises 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 the adjacent steam guide pipes (123) sequentially expands along the directions of the combustion section (1211), the clearance section (1212) and the tail heat section (1213).
  3. 3. The heat exchange furnace body of a steam boiler according to claim 2, wherein the outer walls of the steam guide pipe (123) in the combustion section (1211) and the gap section (1212) are smooth wall surfaces, and spiral fins are arranged on the outer walls of the steam guide pipe (123) in the tail heat section (1213).
  4. 4. The heat exchange furnace body of a steam boiler according to claim 1, wherein the membrane wall (124) is composed of the steam guide pipes (123) arranged at the side and a sealing plate (1241) connecting two adjacent steam guide pipes (123).
  5. 5. The heat exchange furnace body of the steam boiler according to claim 1, wherein two sides of the combustion bin (121) are respectively provided with one isolation bin (122), and at least 1 settling tube (1221) which vertically communicates the steam storage bin (13) with the water inlet bin (11) is arranged in each isolation bin (122).
  6. 6. The heat exchange furnace body of the steam boiler according to claim 1, wherein the top of the steam storage bin (13) is communicated with the 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 (4), 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 heat exchange furnace body of a steam boiler according to claim 1, wherein the top of the steam storage bin (13) is provided with an arc-shaped top.

Description

Heat exchange furnace body of steam boiler Technical Field The utility model relates to the technical field of steam equipment, in particular to a heat exchange furnace body of a 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 issued publication number CN222143016U discloses a novel through-flow steam generator, which relates to the technical field of steam generators and comprises a boiler body, a condenser and a water supply pump, wherein the condenser is positioned on the left side of the boiler body. According to the utility model, the circulating water pump is arranged to pump soft water into the condenser, the water in the condenser enters the boiler body after being preheated and deoxidized by hot smoke, the boiler body is heated by the burner, and the burner is fully mixed with natural gas to enable the natural gas to burn more fully, so that unsafe factors such as steam saturation, furnace body overheating and the like of most of the conventional through-flow gas steam generators are solved, in addition, the condenser arranged in the equipment is a pressure-bearing member, the pressure-bearing requirement is higher, and a certain potential safety hazard exists, and the effects that the condenser is a normal pressure member, the potential safety hazard is reduced, a special separation device is adopted, and the phenomena such as furnace body overheating and the like are greatly reduced due to the fact that the steam saturation is more than 98% are achieved. But the large multi-chamber of the existing steam boiler is uniformly spaced by uniform heating pipes, heat exchange is concentrated on one side close to the ignition end, heat exchange efficiency is distributed unevenly, local high temperature is easily caused, airflow circulation is not smooth, and heating is uneven. Disclosure of utility model The utility model aims to provide a heat exchange furnace body of a steam boiler, which is used for solving the problems of local high temperature, uneven heating and higher energy consumption of the heat exchange furnace of the existing steam boiler. The utility model provides a heat exchange furnace body of a steam boiler, wherein two sides of the heat exchange furnace body are respectively connected with an air inlet device and an air exhaust mechanism, the heat exchange furnace body 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 which is communicated with the air inlet device and the air exhaust mechanism and an isolation bin which is used for 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 walls which are used for isolating the isolation bin from the combustion bin are arranged in the combustion layer, the membrane walls are used for guiding high-temperature gas to flow to the air exhaust mechanism, and the combustion bin is provided with a convex inner cavity which is gradually enlarged and is close to the air exhaust mechanism. The heat exchange furnace body of the steam boiler provided by the utility model also has the following technical characteristics: Further, 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 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, 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, 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