CN218915391U - Natural gas boiler equipment - Google Patents
Natural gas boiler equipment Download PDFInfo
- Publication number
- CN218915391U CN218915391U CN202222896900.1U CN202222896900U CN218915391U CN 218915391 U CN218915391 U CN 218915391U CN 202222896900 U CN202222896900 U CN 202222896900U CN 218915391 U CN218915391 U CN 218915391U
- Authority
- CN
- China
- Prior art keywords
- boiler
- boiler body
- wall
- economizer
- convection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to the technical field of boiler equipment, and discloses natural gas boiler equipment, which comprises a burner, a boiler body, a convection heat exchanger, a primary economizer, a secondary economizer, an economizer, a chimney and a membrane water-cooled wall, wherein the burner is arranged in the middle of one side of the boiler body, and an ignition port of the burner extends into a hearth of the boiler body; the membrane water cooling wall is arranged on the inner wall of the hearth of the boiler body; the convection heat exchanger is arranged at the rear of the inner cavity of the boiler body; the primary economizer and the secondary economizer are both arranged in a flue at the rear end of the boiler body. The utility model reduces the weight of the boiler body, improves the sealing effect of the smoke and the heat absorption area of the hearth, is beneficial to improving the heat efficiency of the boiler, and ensures uniform scouring of the smoke and improves the convection heat exchange coefficient of the inner wall of the boiler, thereby improving the recovery efficiency of the smoke waste heat, reducing the temperature of the smoke at the outlet of the boiler and reducing the waste of tail waste heat resources.
Description
Technical Field
The utility model relates to the technical field of boiler equipment, in particular to natural gas boiler equipment.
Background
In recent years, with the rapid development of urban and rural construction and the increasing of the living standard of people, the demands on boilers for burning natural gas or light oil in the market are rapidly increased, the demands on energy sources are increasingly increased for the society aiming at the situation, meanwhile, the environmental awareness is also improved, the reasonable utilization of clean energy sources is realized, and the energy source transformation and upgrading are urgent. Natural gas is used as a high-efficiency clean energy source and has the potential of large-scale development.
The natural gas boiler is a boiler taking natural gas as energy, and is mainly a single-drum transverse chamber water-fired tube boiler in structure. However, the conventional natural gas boiler still has the following defects:
1. the boiler body is heavier due to the fact that the boiler wall is built inside the boiler, the flue gas sealing effect is poor, the heat absorption area of the inner wall of the hearth is smaller, and the thermal efficiency of the boiler is lower;
2. the flue gas scouring is not uniform enough, so that the convection heat exchange coefficient of the inner wall of the boiler is low, and the waste heat recovery efficiency is low;
3. the temperature of the flue gas at the outlet of the boiler is higher, and the waste of waste heat resources at the tail is larger.
Disclosure of Invention
In view of the above-mentioned problems of the prior art, the present utility model provides a natural gas boiler plant.
In order to achieve the above purpose, the natural gas boiler equipment provided by the utility model comprises a burner, a boiler body, a convection heat exchanger, a primary economizer, a secondary economizer, an economizer, a chimney and a membrane water-cooled wall, wherein the burner is arranged in the middle of one side of the boiler body, and an ignition port of the burner extends into a hearth of the boiler body; the membrane water cooling wall is arranged on the inner wall of the hearth of the boiler body; the convection heat exchanger is arranged at the rear of the inner cavity of the boiler body; the primary economizer and the secondary economizer are both arranged in a flue at the rear end of the boiler body; the energy-saving device is arranged at the outlet of the flue at the rear end of the boiler body, and the exhaust port of the energy-saving device is connected with the chimney through a pipeline.
Preferably, the convection structure of the convection heat exchanger is formed by butt joint of convection tube bundles arranged on an upper header and a lower header, and two sides of the convection tube bundles form a loop by adopting a membrane wall structure.
Preferably, the membrane water wall comprises a plurality of membrane water wall pipes which are vertically distributed and are arranged side by side, and two adjacent membrane water wall pipes are fixedly connected.
Compared with the prior art, the natural gas boiler equipment provided by the utility model has the following beneficial effects:
according to the utility model, the membrane water-cooling walls are arranged on the inner wall of the boiler body, and the design of a plurality of membrane water-cooling wall pipes which are vertically distributed side by side is utilized, so that the heat absorption area is increased, the heat efficiency of the boiler is improved, the flue gas sealing effect is also improved, the brick furnace wall in the traditional boiler is replaced, the membrane wall is used as a partition wall, the weight of the boiler body is greatly reduced, and the sealing and heat-insulating effect of the boiler is improved;
the convection heat exchanger is formed by butt joint of the convection tube bundles arranged on the upper header and the lower header, the two sides of the convection tube bundles are in a membrane wall structure to form a loop, and the convection heating surface is a transverse flushing tube bundle, so that the convection heat exchange coefficient is improved, the uniformity of flue gas flushing is improved, and the flue gas waste heat recovery is facilitated;
in order to reduce the temperature of the outlet flue gas of the boiler body, the primary economizer and the secondary economizer are arranged at the tail part of the convection heat exchanger, and boiler water is fed into the primary economizer and the secondary economizer from the economizer at the tail part of the boiler, so that the reverse heat exchange with the flue gas is completed, the temperature of the outlet flue gas of the boiler body is reduced to the greatest extent, the waste of tail waste heat resources is reduced, and the heat efficiency of the boiler is improved.
Drawings
FIG. 1 is a schematic cross-sectional elevation view of the present utility model;
fig. 2 is a schematic top view of the present utility model.
In the figure: 1. a burner; 2. a boiler body; 3. a convection heat exchanger; 4. a primary economizer; 5. a secondary economizer; 6. an energy-saving device; 7. a chimney; 8. membrane water wall.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure.
The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims. Also, the terms such as "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for which the utility model may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
Referring to fig. 1-2, a natural gas boiler apparatus includes a burner 1, a boiler body 2, a convection heat exchanger 3, a primary economizer 4, a secondary economizer 5, an economizer 6, a chimney 7, and a membrane water wall 8, wherein the burner 1 is installed in the middle of one side of the boiler body 2, and an ignition port of the burner 1 extends into a furnace of the boiler body 2; the membrane water wall 8 is arranged on the inner wall of the hearth of the boiler body 2; the convection heat exchanger 3 is arranged at the rear of the inner cavity of the boiler body 2; the primary economizer 4 and the secondary economizer 5 are both arranged in a flue at the rear end of the boiler body 2; the energy-saving device 6 is arranged at the outlet of the flue at the rear end of the boiler body 2, and the exhaust port of the energy-saving device 6 is connected with the chimney 7 through a pipeline.
The convection structure of the convection heat exchanger 3 is formed by butt joint of convection tube bundles arranged on an upper header and a lower header, and two sides of the convection tube bundles form a loop by adopting a membrane wall structure.
The membrane water wall 8 comprises a plurality of membrane water wall pipes which are vertically distributed and are arranged side by side, and two adjacent membrane water wall pipes are fixedly connected.
According to the utility model, the membrane water-cooling walls 8 are arranged on the inner wall of the boiler body 2, and the design of a plurality of membrane water-cooling wall pipes which are vertically distributed side by using the membrane water-cooling walls 8 is utilized, so that the heat absorption area is increased, the heat efficiency of the boiler is improved, the flue gas sealing effect is also improved, the brick furnace wall in the traditional boiler is replaced, the membrane wall is used as a partition wall, the weight of the boiler body 2 is greatly reduced, and the sealing and heat-insulating effect of the boiler is improved; the convection heat exchanger 3 is formed by butt joint of convection tube bundles arranged on an upper header and a lower header, two sides of the convection tube bundles form a loop by adopting a membrane wall structure, and a convection heating surface is a transverse flushing tube bundle, so that the convection heat exchange coefficient is improved, the uniformity of flue gas flushing is improved, and the flue gas waste heat recovery is facilitated; in order to reduce the temperature of the outlet flue gas of the boiler body 2, a primary economizer 4 and a secondary economizer 5 are arranged at the tail part of the convection heat exchanger 3, boiler water enters the primary economizer 4 and the secondary economizer 5 from an economizer 6 at the tail part of the boiler, the reverse heat exchange with the flue gas is completed, the temperature of the outlet flue gas of the boiler body 2 is reduced to the greatest extent, waste of tail waste heat resources is reduced, and the heat efficiency of the boiler is improved.
When the boiler is used, natural gas is combusted by the burner 1 and then enters the hearth of the boiler 2 to be combusted, the membrane water-cooled wall 8 is arranged on the inner wall of the hearth, so that after high-temperature flue gas absorbs heat through the hearth, the temperature of the flue gas is reduced, the flue gas enters the convection heat exchanger 3 at the rear part of the hearth again, the flue gas evenly flushes the convection tube, the flue gas waste heat recovery is facilitated, water is supplemented into the primary economizer 4 and the secondary economizer 5 through the energy saver 6, the flue gas exchanges heat through the primary economizer 4 and the secondary economizer 5, the temperature of the flue gas is reduced, and finally the flue gas is sent into the chimney 7 through the boiler outlet flue.
The above description is only exemplary embodiments of the present utility model and is not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.
Claims (3)
1. The utility model provides a natural gas boiler equipment, includes combustor (1), boiler body (2), convection heat exchanger (3), one-level economizer (4), second grade economizer (5), energy-saving appliance (6), chimney (7), membrane water wall (8), its characterized in that:
the burner (1) is arranged in the middle of one side of the boiler body (2), and an ignition port of the burner (1) extends to the inside of a hearth of the boiler body (2);
the membrane water cooling wall (8) is arranged on the inner wall of the hearth of the boiler body (2);
the convection heat exchanger (3) is arranged at the rear of the inner cavity of the boiler body (2);
the primary economizer (4) and the secondary economizer (5) are both arranged in a flue at the rear end of the boiler body (2);
the energy-saving device (6) is arranged at the outlet of the flue at the rear end of the boiler body (2), and the exhaust port of the energy-saving device (6) is connected with the chimney (7) through a pipeline.
2. A natural gas boiler plant according to claim 1, characterized in that the convection structure of the convection heat exchanger (3) is formed by butt joint of convection tube bundles arranged in an upper header and a lower header, and the two sides of the convection tube bundles are formed into a loop by a membrane wall structure.
3. A natural gas boiler plant according to claim 1, wherein the membrane water wall (8) comprises a plurality of membrane water wall tubes arranged side by side in a vertical distribution and fixedly connected between two adjacent membrane water wall tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222896900.1U CN218915391U (en) | 2022-11-01 | 2022-11-01 | Natural gas boiler equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222896900.1U CN218915391U (en) | 2022-11-01 | 2022-11-01 | Natural gas boiler equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218915391U true CN218915391U (en) | 2023-04-25 |
Family
ID=86042040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222896900.1U Active CN218915391U (en) | 2022-11-01 | 2022-11-01 | Natural gas boiler equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218915391U (en) |
-
2022
- 2022-11-01 CN CN202222896900.1U patent/CN218915391U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218915391U (en) | Natural gas boiler equipment | |
| CN104501397A (en) | Membrane water-wall compound return water condensing type natural gas hot water boiler | |
| CN204648206U (en) | Horizontal double-deck water pipe furnace grate many backhauls water bath dust-removing flashback coal burning boiler | |
| CN201066195Y (en) | Horizontal type reverse-combusting coal-firing boiler | |
| CN203384986U (en) | Composite garbage incineration boiler | |
| CN202791953U (en) | Water pipe type condensation superheating steam generator | |
| CN205481729U (en) | High -efficient energy -saving pot stove of vertical extreme misery pipe | |
| CN205279449U (en) | High -efficient plant specimen | |
| CN202792536U (en) | Water pipe type condensation hot water boiler | |
| CN208186844U (en) | A kind of oil burning boiler | |
| CN202675592U (en) | Vertical type energy-saving gilled pipe boiler using biomass as fuel | |
| CN207065874U (en) | A kind of fire coal, biomass-burning, fuel vapor multi-fired boiler | |
| CN217816690U (en) | Convection system of gas boiler | |
| CN220931093U (en) | Annular header energy-saving device | |
| CN212842192U (en) | Circulating energy-saving boiler | |
| CN220397842U (en) | Split type gas hot water boiler | |
| CN218033092U (en) | Modular assembly type gas-steam boiler | |
| CN110762512B (en) | Deep energy-saving waste heat recovery system and method for tubular heating furnace | |
| CN215809285U (en) | High-efficient living beings boiler | |
| CN210718054U (en) | Corner tube type gas boiler | |
| CN202791952U (en) | Water pipe type condensation saturation steam generator | |
| CN219624089U (en) | Combined energy-saving device | |
| CN214536856U (en) | Full-premixing water-cooling combustion vacuum boiler | |
| CN108317720A (en) | A kind of oil burning boiler | |
| CN214536121U (en) | Low-nitrogen type overheating steam injection boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |