CN216480902U

CN216480902U - Through-flow gas-steam boiler

Info

Publication number: CN216480902U
Application number: CN202123043844.9U
Authority: CN
Inventors: 冯彬鹏
Original assignee: Guangzhou Xinuo Mechanical And Electrical Equipment Engineering Co ltd
Current assignee: Guangzhou Xinuo Mechanical And Electrical Equipment Engineering Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-10
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a through-flow gas steam boiler, include: the utility model discloses a closely arrange outer spiral water pipe and interior spiral water pipe and link to each other with vertical fin through outer support, outer support inner wall, the vaporizing chamber internal part is located outer spiral water pipe and is equipped with the inner support, the utility model discloses a through outer spiral water pipe and interior spiral water pipe tightly close-phase row and make the heating surface arrange compactly, the water pipe is arranged on outer support and inner support, and outer support both ends are the flaring state, and inner support both ends are the necking down state, make interior spiral water pipe lean on the half of furnace side to radiate the heating surface, and interior spiral water pipe other half and outer spiral water pipe lean on the half of furnace side to the convection heating surface, increased heat transfer area and the flow of being heated of water pipe by a wide margin, the vaporization effect is better, has increased heat utilization ratio, the waste of heat is reduced.

Description

Through-flow gas-steam boiler

Technical Field

The utility model relates to a boiler technical field specifically is a through-flow gas steam boiler.

Background

The gas-fired tubular steam boiler is composed of main body, steam-water separator, water pump and burner, etc. and its accessories. The gas through-flow steam boiler has wide application, and can be used for disinfection, heating, canteens, equipment heating, equipment purification, medicinal material cooking, medicinal material extraction, hospital dry cleaning machines, hospital laundry disinfection and the like in the medical industry.

In the gasification process of a hearth of the conventional tubular gas steam boiler, water pipes are generally arranged into an inner ring and an outer ring, so that the heating surface is compactly arranged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a through-flow gas steam boiler to the water pipe that proposes in solving above-mentioned background art generally arranges for inside and outside two circles, makes to receive the hot side and arranges compactly, but this kind of water pipe is arranged, and heat transfer area is little, and the water pipe is heated the flow and is short, and heat utilization rate is lower, the not good problem of vaporization effect.

In order to achieve the above object, the utility model provides a following technical scheme: a once-through gas-fired steam boiler comprising: the boiler comprises a boiler shell, a hearth, outer spiral water pipes and inner spiral water pipes, wherein the hearth is arranged on the inner wall of the bottom of the boiler shell, a vaporization chamber is arranged in the upper half area inside the boiler shell, outer supports are arranged on the inner wall of the vaporization chamber, the outer spiral water pipes are arranged on the inner wall of the outer supports, inner supports are arranged between the outer spiral water pipes in the vaporization chamber, the inner spiral water pipes are arranged on the outer wall of the inner supports, longitudinal fins are arranged between the outer walls of the inner spiral water pipes and the outer walls of the outer spiral water pipes, and a main air valve is arranged on one side of the top of the boiler shell.

Furthermore, a controller is arranged on one side of the outer wall of the upper half part of the boiler shell, and a burner is arranged on the outer wall of the boiler shell, which is positioned on the outer side of the hearth.

Furthermore, a water level gauge is arranged on one side of the boiler shell, a water supply valve is arranged on one side of the lower half part of the boiler shell, and a drain valve is arranged on the other side of the outer wall of the lower half part of the boiler shell.

Furthermore, the top and the bottom of the outer bracket are trumpet-shaped.

Furthermore, the top and the bottom of the inner support are provided with necking parts.

Furthermore, a safety valve is arranged on one side of the top of the boiler shell.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model realizes compact arrangement of the heating surface by arranging the outer spiral water pipe and the inner spiral water pipe closely and connecting the outer spiral water pipe and the inner spiral water pipe by the longitudinal fins when the tubular gas steam boiler is used, the two ends of the outer support are in flaring state, the two ends of the inner support are in necking state, then the water pipes are connected with the upper and the lower header by welding, the welding of the water pipes and the welding of the T-shaped circular seam adopt the full-automatic carbon dioxide welding or the semi-automatic welding, thereby greatly reducing the welding stress, leading the half circumference of the inner spiral water pipe close to the hearth side to be a radiation heating surface, leading the other half circumference of the inner spiral water pipe and the half circumference of the outer spiral water pipe close to the hearth side to be convection heating surfaces according to the size of the boiler capacity, greatly increasing the heating flow of the heat transfer area and the water pipes, having better vaporization effect and increasing the heat utilization ratio, the waste of heat is reduced.

Drawings

FIG. 1 is a schematic sectional view of the overall front view structure of the present invention;

fig. 2 is a schematic view of the overall structure of the utility model on the right.

In the figure: 1-boiler shell; 101-a water level gauge; 102-a water supply valve; 103-a blowdown valve; 2-hearth; 3-a vaporization chamber; 4-external support; 5-external spiral water pipe; 6-inner support; 7-internal spiral water pipe; 8-a controller; 9-longitudinal fins; 10-a burner; 11-main gas valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a once-through gas-fired steam boiler comprising: boiler shell 1, furnace 2, outer spiral water pipe 5 and interior spiral water pipe 7, the welding of 1 bottom inner wall of boiler shell has furnace 2, the first region in boiler shell 1 is vaporizer 4, the welding of 4 inner walls of vaporizer has outer support 4, the joint of 4 inner walls of outer support has outer spiral water pipe 5, the welding of 4 inside positions in vaporizer between outer spiral water pipe 5 has inner support 6, interior spiral water pipe 7 of 6 outer wall joints of inner support, the welding has vertical fin 9 between 7 outer walls of interior spiral water pipe and the outer spiral water pipe 5 outer wall, one side joint in the top of boiler shell 1 has main air valve 11.

First outer wall one side of boiler shell 1 has controller 8 through screw connection, there is combustor 10 through screw connection in the boiler shell 1 outer wall position in the 2 outsides of furnace, 1 joint in one side of boiler shell has

fluviograph

101, 1 joint in one side of the lower half of boiler shell has

feed valve

102, 1 joint in the lower half of boiler shell outer wall opposite side has

blowoff valve

103, 4 tops of outer support and bottom are the loudspeaker form, 6 tops of inner support and bottom are equipped with the throat, 1 joint in top one side of boiler shell has the relief valve.

The working principle is as follows: when the tubular gas steam boiler is used, the outer spiral water pipes 5 and the inner spiral water pipes 7 are closely arranged and connected by the longitudinal fins 9, so that the heating surface is compactly arranged, the water pipes are arranged on the outer support 4 and the inner support 6, two ends of the outer support are in an expanding state, two ends of the inner support 6 are in a necking state, then the water pipes are welded and connected with the upper header and the lower header, the welding of the water pipes and the welding of the T-shaped circular seam adopt full-automatic carbon dioxide welding or semi-automatic welding, so that the welding stress is greatly reduced, according to the volume of the boiler, the half circle of the inner spiral water pipe close to the side of a hearth is a radiation heating surface, the other half circle of the inner spiral water pipe 7 and the half circle of the outer spiral water pipe 5 close to the side of the hearth are convection heating surfaces, the heat transfer area and the heating flow of the water pipes are greatly increased, the vaporization effect is good, the heat utilization rate is increased, and the waste of heat is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A once-through gas-fired steam boiler comprising: boiler shell (1), furnace (2), outer spiral water pipe (5) and interior spiral water pipe (7), its characterized in that: the boiler comprises a boiler shell (1), and is characterized in that a hearth (2) is arranged on the inner wall of the bottom of the boiler shell (1), a vaporizing chamber (3) is arranged in the upper half area of the interior of the boiler shell (1), an outer support (4) is arranged on the inner wall of the vaporizing chamber (3), outer spiral water pipes (5) are arranged on the inner wall of the outer support (4), an inner support (6) is arranged between the outer spiral water pipes (5) inside the vaporizing chamber (3), inner spiral water pipes (7) are arranged on the outer wall of the inner support (6), longitudinal fins (9) are arranged between the outer wall of the inner spiral water pipes (7) and the outer wall of the outer spiral water pipes (5), and a main air valve (11) is arranged on one side of the top of the boiler shell (1).

2. A once-through gas steam boiler as set forth in claim 1, wherein: one side of the outer wall of the upper half part of the boiler shell (1) is provided with a controller (8), and the outer wall of the boiler shell (1) is positioned outside the hearth (2) and is provided with a burner (10).

3. A once-through gas steam boiler as set forth in claim 1, wherein: one side of the boiler shell (1) is provided with a water level gauge (101), one side of the lower half part of the boiler shell (1) is provided with a water supply valve (102), and the other side of the outer wall of the lower half part of the boiler shell (1) is provided with a blow-down valve (103).

4. A once-through gas steam boiler as set forth in claim 1, wherein: the top and the bottom of the outer bracket (4) are trumpet-shaped.

5. A once-through gas steam boiler as set forth in claim 1, wherein: the top and the bottom of the inner support (6) are provided with necking parts.

6. A once-through gas steam boiler as set forth in claim 1, wherein: and a safety valve is arranged on one side of the top of the boiler shell (1).