CN212157098U

CN212157098U - Central back-burning oil-gas water-heating boiler

Info

Publication number: CN212157098U
Application number: CN202020776478.4U
Authority: CN
Inventors: 陈国和
Original assignee: Leshan Leguo Boiler Co ltd
Current assignee: Leshan Leguo Boiler Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-12-15
Anticipated expiration: 2030-05-12

Abstract

The utility model discloses a central back-burning type fuel oil and gas hot water boiler, which belongs to the field of hot water boilers and comprises a boiler body, wherein the boiler body comprises an inner container, a heating layer and a heat insulation layer, the inner container is arranged at the innermost part of the boiler body, the heating layer is arranged at the outer side of the inner container, and the heat insulation layer is arranged at the outer side of the heating layer; the lower end of the inner container is connected with a water pipeline leading to the outside of the boiler body, and the top end of the inner container is provided with a steam pipeline leading to the outside of the boiler body; the heating layer is provided with an input pipeline which is communicated with the outside of the boiler body and is used for inputting combustible gas and an output pipeline which is used for outputting waste gas after combustion. This scheme has adopted inner bag, zone of heating and insulating layer to make the gas burn back in the zone of heating, improved the combustion efficiency of gas, and when having increaseed the gas burning with the area of contact of inner bag, thereby improved energy conversion efficiency, and simple structure is with low costs, and it is complicated to have solved above-mentioned current gas hot water boiler structure, as the boiler that small-size enterprise used, problem with high costs.

Description

Central back-burning oil-gas water-heating boiler

Technical Field

The utility model belongs to the hot water boiler field relates to central backfire formula fuel oil gas hot water boiler.

Background

The boiler is an energy conversion device, and a certain amount of energy (chemical energy in fuel, electric energy) is input into the boiler, and the boiler outputs steam, high-temperature water or other carriers containing heat energy. The gas boiler is a kind of boiler, which is a boiler using combustible gas as fuel, but it is a very broad concept and can be divided into many kinds according to the different factors of the specific fuel, product structure, flue gas flow, boiler body material, combustion mode, etc.

The main uses of the gas boiler are as follows:

1: the household gas wall-mounted boiler is mainly used for household heating, daily life and bath hot water;

2: the commercial gas boiler is mainly used for supplying heating or bathing water and domestic hot water for business super, hospitals, schools, hotels, residential areas, bathing centers and the like;

3: industrial gas boilers are mainly used for power generation, and the used combustible gas is generally natural gas, blast furnace gas, producer gas and the like.

With the increasing importance of the country on environmental protection, the gas is more and more concerned by people as a clean energy. Energy problems and environmental problems are increasingly the focus of attention, and the harm of high pollution of coal to the environment has aroused people's consensus. The development of gas as a fuel for industrial and residential use has become an ideal choice, and gas boilers will take an increasingly important position in our lives. Firstly, natural gas is clean energy and contains few impurities, and associated gas which is produced by combustion and harms the environment is correspondingly reduced. Secondly, the heat of the natural gas is high and clean, and the heat exchange coefficient of the corresponding boiler heat exchange is high, so that the consumption of boiler raw materials such as steel and the like can be correspondingly reduced. With the development of gas boilers, wet-back boilers, which are a relatively common boiler, have high thermal efficiency, reaching 90%, and occupy a large percentage in the civil boiler market.

The central back-burning oil-gas hot water boiler has good combustion efficiency as an existing gas-water boiler, but has a complex structure, and is too high in cost as a boiler applied to small enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the central back-burning fuel-gas hot water boiler adopts the inner container, the heating layer and the heat insulation layer, improves the fuel gas efficiency by back-burning fuel gas in the heating layer, has simple structure and low cost, and solves the problem that the existing gas-hot water boiler has complex structure and overhigh cost as a boiler applied by small enterprises.

The utility model adopts the technical scheme as follows:

the central back-burning fuel-gas hot water boiler comprises a boiler body, wherein the boiler body comprises an inner container, a heating layer and a heat insulation layer, the inner container is arranged at the innermost part of the boiler body, the heating layer is arranged on the outer side of the inner container, and the heat insulation layer is arranged on the outer side of the heating layer;

the lower end of the inner container is connected with a water pipeline leading to the outside of the boiler body, and the top end of the inner container is provided with a steam pipeline leading to the outside of the boiler body; the heating layer is provided with an input pipeline which is communicated with the outside of the boiler body and is used for inputting combustible gas and an output pipeline which is used for outputting waste gas after combustion.

In order to better implement the utility model, furthermore, be equipped with the ignition device in the zone of heating.

In order to better implement the utility model discloses, further, input pipeline and output pipeline set up the opposition position on zone of heating top respectively.

In order to better implement the utility model discloses, further, be provided with valve A on the input pipeline.

In order to better implement the utility model discloses, furtherly, be provided with valve B on the water service pipeline.

This scheme uses three-layer boiler body structure, the inlayer is the inner bag, the cladding of middle zone of heating is the inner bag heating, outer insulating layer plays thermal-insulated effect, prevent the heat loss, play the guard action simultaneously, in the middle zone of heating, the gas can be along the outside face of inner bag through one section longer distance, this kind is during gas combustion heating in the zone of heating, can be great to the area of contact of the gas of lighting and inner bag, water in can be better and the inner bag carries out the heat exchange, thereby steam is produced, then steam is exported from steam conduit.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model provides a central back-burning type fuel oil gas hot water boiler, which adopts an inner container, a heating layer and a heat insulation layer, and the back burning of fuel gas in the heating layer improves the fuel gas efficiency, has simple structure and low cost, and solves the problems that the existing gas hot water boiler has complex structure and overhigh cost when being used as a boiler applied by small enterprises;

2. central back-burning fuel gas hot water boiler, provide central back-burning fuel gas hot water boiler, adopt inner bag, zone of heating and insulating layer to make the gas back-burning improve gas efficiency in the zone of heating, and simple structure is with low costs, has this higher heat exchange efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:

fig. 1 is a schematic structural diagram of the present invention;

the labels in the figure are: 1-boiler body, 2-inner container, 201-water pipeline, 202-steam pipeline, 203-valve B, 3-heating layer, 301-input pipeline, 302-output pipeline, 303-ignition device, 304-valve A, 4-heat insulation layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention will be described in further detail with reference to the following examples.

Example one

The central flashback type fuel oil and gas hot water boiler provided by the preferred embodiment of the utility model comprises a boiler body 1, wherein the boiler body 1 comprises an inner container 2, a heating layer 3 and a heat insulation layer 4, the inner container 2 is arranged at the innermost part of the boiler body 1, the heating layer 3 is arranged at the outer side of the inner container 2, and the heat insulation layer 4 is arranged at the outer side of the heating layer 3;

the lower end of the inner container 2 is connected with a water pipeline 201 leading to the outside of the boiler body 1, and the top end of the inner container 2 is provided with a steam pipeline 202 leading to the outside of the boiler body 1; the heating layer 3 has an inlet pipe 301 for introducing combustible gas to the outside of the boiler body 1 and an outlet pipe 302 for discharging exhaust gas after combustion.

The working principle is as follows: this scheme uses three-layer boiler body 1 structure, the inlayer is inner bag 2, 3 cladding inner bags 2 heating of intermediate heating layer, outer insulating layer 4 plays thermal-insulated effect, prevent the heat loss, play the guard action simultaneously, in intermediate heating layer 3, the gas can be along inner bag 2's outside face through one section longer distance, this kind is when gas combustion heating in zone of heating 3, can be great to the gas of lighting and inner bag 2's area of contact, can be better and the water in inner bag 2 carries out the heat exchange, thereby produce steam, then steam exports from steam conduit 202, this scheme simple structure, low in manufacturing cost, but the path length of gas process in zone of heating 3, so combustion efficiency is high.

Example two

In this embodiment, on the basis of the first embodiment, a lighting device 303 is further disposed in the heating layer 3. The input pipe 301 and the output pipe 302 are respectively arranged at opposite positions on the top end of the heating layer 3. The input pipeline 301 is provided with a valve A304. The water pipeline 201 is provided with a valve B203.

The working principle is as follows: this scheme uses three-layer boiler body 1 structure, the inlayer is inner bag 2, 3 cladding of intermediate heating layer are inner bag 2 heats, outer insulating layer 4 plays thermal-insulated effect, prevent the heat loss, play the guard action simultaneously, in intermediate heating layer 3, the gas can be along inner bag 2's outside face through one section longer distance, this kind is when gas combustion heating in heating layer 3, can be great the gas of lighting and inner bag 2's area of contact, can be better carry out the heat exchange with the water in the inner bag 2, thereby produce steam, then steam is exported from steam conduit 202. The device of striking sparks in zone of heating 3 directly, light the gas, make the gas combustion, input pipeline 301 and output pipeline 302's opposition sets up, make the gas can be through downwards by input pipeline 301 in zone of heating 3, then follow the export from output pipeline 302 that makes progress down again, can produce the longer path relatively, firstly, the combustion efficiency of gas has been improved, secondly when having improved the gas combustion with the area of contact of inner bag, both sides all further improve combustion efficiency, this scheme simple structure simultaneously, low in manufacturing cost, be fit for the boiler that small-size enterprise or family used alone.

Other parts of this embodiment are the same as those of embodiment 1, and thus are not described herein.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents and improvements made by those skilled in the art within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Central back-burning fuel oil gas hot water boiler, including boiler body (1), its characterized in that: the boiler body (1) comprises an inner container (2), a heating layer (3) and a heat insulation layer (4), wherein the inner container (2) is arranged at the innermost part of the boiler body (1), the heating layer (3) is arranged on the outer side of the inner container (2), and the heat insulation layer (4) is arranged on the outer side of the heating layer (3);

the lower end of the inner container (2) is connected with a water pipeline (201) leading to the outside of the boiler body (1), and the top end of the inner container (2) is provided with a steam pipeline (202) leading to the outside of the boiler body (1); the heating layer (3) is provided with an input pipeline (301) which is communicated with the outside of the boiler body (1) and is used for inputting combustible gas and an output pipeline (302) which is used for outputting waste gas after combustion.

2. The center-flashback, oil-gas-fired hot water boiler according to claim 1, characterized in that: and a lighting device (303) is arranged in the heating layer (3).

3. The center-flashback, oil-gas-fired hot water boiler according to claim 1, characterized in that: the input pipeline (301) and the output pipeline (302) are respectively arranged at opposite positions of the top end of the heating layer (3).

4. The center-flashback, oil-gas-fired hot water boiler according to claim 1, characterized in that: the input pipeline (301) is provided with a valve A (304).

5. The center-flashback, oil-gas-fired hot water boiler according to claim 1, characterized in that: and a valve B (203) is arranged on the water pipeline (201).