Furnace body capable of rapidly generating steam

Abstract

A furnace body capable of rapidly generating steam comprises a horizontal heat exchange chamber located on the front portion and a vertical heat exchange chamber located on the rear portion, a plurality of first heat exchange pipes in the horizontal left-right direction are fixedly installed in the vertical heat exchange chamber, and the first heat exchange pipes are evenly distributed in the front-back direction and the up-down direction of the vertical heat exchange chamber. A water inlet pipe is connected to the uppermost first heat exchange pipe, the ends of every two adjacent first heat exchange pipes are sequentially connected in series through a U-shaped elbow to connect the first heat exchange pipes into a first snakelike straight-through pipe, a plurality of second heat exchange pipes are fixedly installed on the rear portion of the horizontal heat exchange chamber, and the ends of the second heat exchange pipes penetrate out of the horizontal heat exchange chamber. The ends of every two adjacent second heat exchange pipes are sequentially connected in series through a U-shaped elbow so that the second heat exchange pipes can be connected into a second snakelike straight-through pipe, an outlet of the first snakelike straight-through pipe is connected with an inlet of the second snakelike straight-through pipe, an inlet of the second snakelike straight-through pipe is connected with an inlet of a rectangular spiral pipe, and an outlet of the rectangular spiral pipe is connected with a steam outlet pipe. The boiler body is fast in steam generation.

Description

Technical Field

[0001] The utility model relates to a small steam boiler (generator) furnace body, in particular to a furnace body capable of quickly generating steam, belonging to the technical field of heat exchange equipment. Background Art

[0002] Small steam generators are widely used in distributed industrial and agricultural production. Steam generators can be divided into vertical steam generators and horizontal steam generators according to their form. Horizontal steam generators occupy a large area and generally provide a large steam output. Vertical steam generators occupy underground space and are generally used in situations where steam demand is small. These two types of steam generators are also widely disclosed in Chinese patent applications, such as a vertical steam generator disclosed in CN218993363U, a biomass horizontal steam generator disclosed in CN220601487U, and a direct current tubular biomass steam generator disclosed in CN214038335U. These steam generators generally require a steam drum, which has a relatively complex structure. The relatively large amount of internal water storage leads to high safety monitoring, and a certain startup time is required to generate steam. Summary of the Invention

[0003] The purpose of the utility model is to provide a steam generator furnace body with a simple structure and capable of quickly generating steam.

[0004] In order to achieve the purpose of the utility model, the following technical solutions are adopted: a furnace body for rapidly generating steam, comprising a horizontal heat exchange chamber at the front and a vertical heat exchange chamber at the rear, a combustion interface being provided at the front end of the horizontal heat exchange chamber, a flue plate being provided between the horizontal heat exchange chamber and the vertical heat exchange chamber, a flue for flue gas flow being provided between the lower end and the bottom of the flue plate, a plurality of first heat exchange tubes in horizontal left and right directions being fixedly installed in the vertical heat exchange chamber, first heat exchange tubes being distributed in the front-back direction and the up-down direction of the vertical heat exchange chamber, a water inlet pipe being connected to the uppermost first heat exchange tube, both ends of the first heat exchange tube passing through the vertical heat exchange chamber, and two adjacent first heat exchange tubes The ends of the first heat exchange tubes are connected in series through U-shaped elbows to form a first serpentine straight-through tube. A plurality of second heat exchange tubes are fixedly installed at the rear of the horizontal heat exchange chamber. The ends of the second heat exchange tubes pass through the horizontal heat exchange chamber. The ends of the two adjacent second heat exchange tubes are connected in series through U-shaped elbows to form a second serpentine straight-through tube. The outlet of the first serpentine straight-through tube is connected to the inlet of the second serpentine straight-through tube. The outlet of the first serpentine straight-through tube and the inlet of the second serpentine straight-through tube are both located at the lower part, and the outlet of the second serpentine straight-through tube is located at the upper part. The inlet of the second serpentine straight-through tube is connected to the inlet of the rectangular spiral tube, and the outlet of the rectangular spiral tube is connected to the steam outlet pipe.

[0005] Furthermore, the front end of the rectangular spiral tube is in the shape of a quadrangular pyramid.

[0006] Furthermore, the first serpentine straight-through tube, the second serpentine straight-through tube, and the rectangular spiral tube are all finned tubes with external fins except for the turning parts.

[0007] Furthermore, the first serpentine straight-through tube, the second serpentine straight-through tube and the rectangular spiral tube are all fixedly provided with longitudinal fins with spoke-shaped cross-sections except for the turning parts.

[0008] The positive and beneficial technical effects of this utility model are: the finned tubes of the furnace body have a large heat exchange area, high heat exchange efficiency, and fast heat exchange speed. The heat exchange tubes in the entire furnace body are connected into a straight pipe. Water is introduced from the rear and heat is exchanged within the furnace body to directly generate steam. The steam generation speed is extremely fast, the internal water volume is small, and the safety is excellent. Specific details will be explained in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is one of the overall schematic diagrams of the present utility model.

[0010] Figure 2 This is the second overall schematic diagram of the present utility model.

[0011] Figure 3 It is a schematic diagram of the utility model with the side and top removed.

[0012] Figure 4 It is a schematic diagram of the upper and lower sections of the rectangular spiral tube of the utility model. DETAILED DESCRIPTION

[0013] In order to more fully explain the implementation of the present invention, the following examples are provided. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

[0014] The present invention is further explained in detail in conjunction with the accompanying drawings, in which the following are marked: 1: horizontal heat exchange chamber; 2: vertical heat exchange chamber; 3: flue plate; 4: first heat exchange tube; 5: water inlet pipe; 6: first serpentine straight-through pipe; 7: second serpentine straight-through pipe; 8: steam outlet pipe; 9: burner interface; 10: connecting pipe; 11: second heat exchange tube; 12: rectangular spiral tube; 121: smooth tube; 122: outer fin; 123: longitudinal fin; 13: quadrangular pyramid; 14: flue.

[0015] In this application, the term "rectangular spiral tube" refers to a rectangular spiral, not a rectangular cross-section. Longitudinal fins refer to internal fins arranged along the axis of the tube. These divide the interior of the tube into multiple independent spaces, reducing steam blockage. There are no longitudinal fins at bends. In this utility model, horizontal heat exchange chambers are used for flue gas flow in a forward-backward direction. Vertical heat exchange chambers are used for flue gas flow in a vertical direction. Figure 1 In the embodiment, the top plate on the upper part of the vertical combustion chamber is removed, and the smoke outlet is opened on the top plate.

[0016] As shown in the accompanying drawings, a furnace body for rapidly generating steam comprises a horizontal heat exchange chamber 1 at the front and a vertical heat exchange chamber 2 at the rear, a combustion interface 9 being provided at the front end of the horizontal heat exchange chamber, a flue plate 3 being provided between the horizontal heat exchange chamber and the vertical heat exchange chamber, a flue 14 for flue gas flow being provided between the lower end and the bottom of the flue plate 3, a plurality of first heat exchange tubes 4 in horizontal left-right directions being fixedly installed in the vertical heat exchange chamber, first heat exchange tubes being distributed in the front-back direction and the up-down direction of the vertical heat exchange chamber, a water inlet pipe 5 being connected to the topmost first heat exchange tube, both ends of the first heat exchange tube passing through the vertical heat exchange chamber, the ends of the two adjacent first heat exchange tubes being connected in series in sequence through U-shaped elbows to form a first serpentine straight-through tube 6, a plurality of first heat exchange tubes 4 being fixedly installed at the rear of the horizontal heat exchange chamber. A second heat exchange tube 11, the end of the second heat exchange tube passes through the horizontal heat exchange chamber, and the ends of the two adjacent second heat exchange tubes are connected in series through U-shaped elbows to connect the second heat exchange tubes to form a second serpentine straight-through tube 7, and the outlet of the first serpentine straight-through tube is connected to the inlet of the second serpentine straight-through tube. In the figure, the connecting pipe 10 is connected from the outlet of the first serpentine straight-through tube to the inlet of the second serpentine straight-through tube. The outlet of the first serpentine straight-through tube and the inlet of the second serpentine straight-through tube are both located at the bottom, and the outlet of the second serpentine straight-through tube is located at the top. The inlet of the second serpentine straight-through tube is connected to the inlet of the rectangular spiral tube 12, and the rectangular spiral tube spirals forward to the front end of the horizontal combustion chamber. The front end of the rectangular spiral tube is a quadrangular pyramid, and 13 shows a quadrangular pyramid. The outlet of the rectangular spiral tube is connected to the steam outlet pipe 8.

[0017] The first serpentine straight-through tube, the second serpentine straight-through tube, and the rectangular spiral tube are all finned tubes with external fins except for the turning parts. The first serpentine straight-through tube, the second serpentine straight-through tube, and the rectangular spiral tube are all fixedly provided with longitudinal fins with spoke-shaped cross-sections except for the turning parts. Figure 3 The cross-sectional structure of the heat exchange tube in the left and right directions of the top of the rectangular spiral tube is shown in the figure. The inside of the finned tube is a light tube 121, and the outside of the light tube has external fins. The spoke-shaped longitudinal fins 123 are fixedly arranged inside the light tube.

[0018] After describing the implementation mode of the present invention in detail, people familiar with the technology can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention, and the present invention is not limited to the implementation mode of the examples given in the specification.

Claims

1. A furnace body for rapidly generating steam, comprising a horizontal heat exchange chamber at the front and a vertical heat exchange chamber at the rear, wherein the front end of the horizontal heat exchange chamber has a combustion interface, a flue plate is disposed between the horizontal and vertical heat exchange chambers, and a flue for flue gas flow is disposed between the lower end and the bottom of the flue plate, characterized in that: A plurality of first heat exchange tubes in the horizontal left-right direction are fixedly installed in the vertical heat exchange chamber. The first heat exchange tubes are distributed in the front-back direction and the up-down direction of the vertical heat exchange chamber. The uppermost first heat exchange tube is connected to the water inlet pipe. Both ends of the first heat exchange tube pass through the vertical heat exchange chamber. The ends of the two adjacent first heat exchange tubes are connected in series in sequence through U-shaped elbows to connect the first heat exchange tubes to form a first serpentine straight-through pipe. A plurality of second heat exchange tubes are fixedly installed at the rear of the horizontal heat exchange chamber. The ends of the second heat exchange tubes pass through the horizontal heat exchange chamber. The ends of the two adjacent second heat exchange tubes are connected in series through U-shaped elbows to connect the second heat exchange tubes to form a second serpentine straight-through tube. The outlet of the first serpentine straight-through tube is connected to the inlet of the second serpentine straight-through tube. The outlet of the first serpentine straight-through tube and the inlet of the second serpentine straight-through tube are both located at the lower part, and the outlet of the second serpentine straight-through tube is located at the upper part. The inlet of the second serpentine straight-through tube is connected to the inlet of the rectangular spiral tube. The outlet of the rectangular spiral tube is connected to the steam outlet pipe, and the smoke outlet is located at the top of the vertical heat exchange chamber.

2. A furnace for rapidly generating steam according to claim 1, characterized in that: The front end of the rectangular spiral tube is in the shape of a quadrangular pyramid.

3. The furnace for rapidly generating steam according to claim 1, characterized in that: The first serpentine straight-through pipe, the second serpentine straight-through pipe and the rectangular spiral pipe are all fixedly connected with external fins except for the turning parts.

4. The furnace for rapidly generating steam according to claim 1, characterized in that: The first serpentine straight-through pipe, the second serpentine straight-through pipe and the rectangular spiral pipe are all fixedly provided with longitudinal fins with spoke-shaped cross-sections inside except for the turning parts.

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