CN219283315U

CN219283315U - Combustion chamber and outdoor fuel air heater

Info

Publication number: CN219283315U
Application number: CN202320420517.0U
Authority: CN
Inventors: 李正强; 冉周
Original assignee: Fengyou Machinery Shanghai Co ltd
Current assignee: Fengyou Machinery Shanghai Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-06-30
Anticipated expiration: 2033-03-07

Abstract

The utility model provides a combustion chamber and a fuel oil outdoor air heater, relates to the technical field of combustion equipment, and solves the technical problems of low heat exchange efficiency and inconvenient use of the air heater; the combustion chamber comprises a first combustion chamber and a second combustion chamber, wherein the first combustion chamber is communicated with the second combustion chamber, a fuel combustion part is arranged in the first combustion chamber, an air inlet and an air outlet are communicated with the second combustion chamber, more than two heat exchange pipes are arranged in the second combustion chamber and used for exchanging heat with air passing through the second combustion chamber after being heated by the fuel combustion part; the fuel oil combustion part ignites fuel oil in the first combustion chamber and heats the heat exchange tubes in the second combustion chamber, when normal-temperature air enters the second combustion chamber through the air inlet and flows out from the air outlet, the fuel oil combustion part can exchange heat with the heat exchange tubes, the heat exchange area is large, and the normal-temperature air is uniformly heated; the structure can save energy sources by utilizing an indirect combustion mode, and improves the heating efficiency of air.

Description

Combustion chamber and outdoor fuel air heater

Technical Field

The utility model relates to the technical field of combustion equipment, in particular to a combustion chamber and an outdoor fuel air heater.

Background

When heating in areas without electricity outdoors, a hot air blower is usually needed. The air heater in the prior art only comprises a combustion chamber, fuel is ignited in the combustion chamber, the fuel at the nozzle is utilized to directly heat air, or a metal pipe is arranged in the combustion chamber, and heat exchange is carried out between the metal pipe and the air, so that the heating purpose is realized.

The applicant found that the prior art has at least the following technical problems: the heat exchange area in the air heater is small, the heat exchange effect is poor, the heat source waste is large, and the use is inconvenient.

Disclosure of Invention

The utility model aims to provide a combustion chamber and a fuel oil outdoor air heater, so as to solve the technical problems of low heat exchange efficiency and inconvenient use of the air heater in the prior art; the preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a combustion chamber, which comprises a first combustion chamber and a second combustion chamber, wherein:

the first combustion chamber is communicated with the second combustion chamber, a fuel combustion part is arranged in the first combustion chamber, the second combustion chamber is communicated with an air inlet and an air outlet, heat exchange pipes are arranged in the second combustion chamber, and the heat exchange pipes are more than two and used for exchanging heat with air passing through the second combustion chamber after being heated by the fuel combustion part.

Preferably, the heat exchange tubes are uniformly spaced within the second combustion chamber.

Preferably, the air inlet and the air outlet are respectively arranged at two opposite sides of the second combustion chamber.

Preferably, the first combustion chamber is provided with and communicated with an air blowing port, and the second combustion chamber is provided with and communicated with an air exhaust port.

Preferably, the first combustion chamber is communicated with one end of the second combustion chamber, and the exhaust port is communicated with the other end of the second combustion chamber.

Preferably, the exhaust port is located at a central position of the second combustion chamber end.

Preferably, the heat exchange pipe extends from one end of the second combustion chamber communicating with the first combustion chamber to the other end.

Preferably, the fuel combustion section includes an ignition nozzle located at an end of the first combustion chamber remote from the second combustion chamber.

Preferably, the cross section of the first combustion chamber is circular or square.

The utility model also provides a fuel oil outdoor air heater, which comprises the combustion chamber, wherein the fuel oil combustion part is communicated with an oil tank.

Compared with the prior art, the combustion chamber and the fuel oil outdoor air heater provided by the utility model have the following beneficial effects: the fuel oil combustion part ignites fuel oil in the first combustion chamber and heats the heat exchange tubes in the second combustion chamber, when normal-temperature air enters the second combustion chamber through the air inlet and flows out from the air outlet, the fuel oil combustion part can exchange heat with the heat exchange tubes, the heat exchange area is large, and the normal-temperature air is uniformly heated; the structure utilizes an indirect combustion mode, can save energy, improves the heating efficiency of air, and is more convenient to use by the fuel oil outdoor air heater.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic elevational view of a combustion chamber;

FIG. 2 is a schematic side view of a combustion chamber.

In the figure 1, a first combustion chamber; 2. a second combustion chamber; 3. a heat exchange tube; 4. a fuel combustion section; 5. blowing an air port; 6. an exhaust port; 7. an air inlet; 8. and an air outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

In the description of the present utility model, it should be understood that the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The embodiment of the utility model provides a combustion chamber and a fuel oil outdoor air heater, which have large heat exchange area, and the normal-temperature air is uniformly heated, so that the heat exchange efficiency is improved.

The technical solution provided by the present utility model is described in more detail below with reference to fig. 1 and 2.

Example 1

As shown in fig. 1 and 2, the present embodiment provides a combustion chamber including a first combustion chamber 1 and a second combustion chamber 2, wherein: the first combustion chamber 1 is communicated with the second combustion chamber 2, the first combustion chamber 1 is internally provided with a fuel combustion part 4, the second combustion chamber 2 is communicated with an air inlet 7 and an air outlet 8, the second combustion chamber 2 is internally provided with heat exchange tubes 3, and the heat exchange tubes 3 are provided with more than two heat exchange tubes for exchanging heat with air passing through the second combustion chamber 2 after being heated by the fuel combustion part 4. The normal temperature air enters the second combustion chamber 2 from the air inlet 7, and flows out of the second combustion chamber 2 from the air outlet 8 to form hot air.

In order to facilitate heating of the heat exchange tube 3, the heat exchange tube 3 may be made of stainless steel or the like.

In the combustion chamber of the embodiment, the fuel combustion part 4 ignites fuel in the first combustion chamber 1 and heats the heat exchange tubes 3 in the second combustion chamber 2, when normal-temperature air enters the second combustion chamber 2 through the air inlet 7 and flows out from the air outlet 8, the normal-temperature air can exchange heat with the heat exchange tubes 3, the heat exchange area is large, and the normal-temperature air is uniformly heated; the structure utilizes an indirect combustion mode, can save energy, improves the heating efficiency of air, and is more convenient to use by the fuel oil outdoor air heater.

As an alternative embodiment, see fig. 1, the fuel combustion section 4 comprises an ignition nozzle, which is located at the end of the first combustion chamber 1 remote from the second combustion chamber 2. The ignition nozzle is a mature technology in the prior art, and the structure thereof is not described herein. The ignition nozzle is connected with an oil tank through a pipeline, an oil pump is arranged on the pipeline, and the oil pump can pump the fuel in the oil tank into the ignition nozzle.

As an alternative embodiment, the heat exchange tubes 3 are arranged at even intervals within the second combustion chamber 2, as shown in fig. 1 and 2. Specifically, the heat exchange tubes 3 are distributed in a matrix in the second combustion chamber 2, when normal-temperature air enters the second combustion chamber 2 through the air inlet 7, the normal-temperature air exchanges heat with the heat exchange tubes 3 and flows out through the air outlet 8, in the process, the heat exchange area of the air and the heat exchange tubes 3 is large, the heat exchange efficiency is improved, and the air can be conveniently and rapidly heated.

As an alternative embodiment, referring to fig. 2, the air inlet 7 and the air outlet 8 are respectively disposed at two opposite sides of the second combustion chamber 2, so that air can pass through the second combustion chamber 2 and exchange heat with the plurality of heat exchange tubes 3 uniformly.

In order to further increase the combustion efficiency, as an alternative embodiment, referring to fig. 1, a blowing port 5 is provided and connected to the first combustion chamber 1, and an exhaust port 6 is provided and connected to the second combustion chamber 2. In other words, the combustion chamber in this embodiment is in communication with the outside atmosphere, and wind can flow into the air blowing port 5 by a blower or the like, so that oxygen in the first combustion chamber 1 and the second combustion chamber 2 is sufficient, fuel combustion is facilitated, and exhaust gas after combustion can be discharged through the exhaust port 6.

As an alternative embodiment, referring to fig. 1, the first combustion chamber 1 communicates with one end of the second combustion chamber 2, and the exhaust port 6 communicates with the other end of the second combustion chamber 2. The above structure can make the oxygen in the first combustion chamber 1 and the second combustion chamber 2 sufficient, and the exhaust gas after combustion is conveniently discharged from the exhaust port 6.

As an alternative embodiment, referring to fig. 1 and 2, the exhaust port 6 is located at the center of the end of the second combustion chamber 2, so as to facilitate the exhaust of the exhaust gas after combustion.

As an alternative embodiment, referring to fig. 1, the heat exchange tube 3 extends from one end of the second combustion chamber 2 communicating with the first combustion chamber 1 to the other end. The structure can fully utilize the inner space of the second combustion chamber 2, further improve the heat exchange area of the normal-temperature air and the heat exchange tube 3, and improve the heat exchange efficiency.

As an alternative embodiment, the cross section of the first combustion chamber 1 is circular or square. Preferably, referring to fig. 1 and 2, the cross section of the first combustion chamber 1 in this embodiment is circular, so that the first combustion chamber 1 can be prevented from being damaged, and air flow is facilitated.

The combustion chamber of this embodiment, when in use: the high-pressure ignition ignites the fuel oil of the ignition nozzle, and the normal-temperature air is blown into the inner cavity of the first combustion chamber 1 by the air blowing port 5, so that the combustion is facilitated; the heat exchange tube 3 in the second combustion chamber 2 is heated uniformly, and the combusted waste gas is discharged through the exhaust port 6; the air blower makes the normal temperature air enter the second combustion chamber 2 from the air inlet 7, the normal temperature air flows through the heat exchange tube 3, and after being heated uniformly by the heat exchange tube 3, the hot air is blown out from the air outlet 8.

Example two

The embodiment provides an outdoor fuel air heater, which comprises the combustion chamber, wherein the fuel combustion part 4 is communicated with an oil tank.

The fuel oil outdoor air heater of this embodiment owing to possess above-mentioned combustion chamber, so utilize indirect combustion mode, can the energy saving, improved the heating efficiency to the air, the outdoor air heater of fuel oil uses more conveniently.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples in this specification.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A combustion chamber comprising a first combustion chamber and a second combustion chamber, wherein:

2. The combustor according to claim 1, wherein said heat exchange tubes are uniformly spaced within said second combustion chamber.

3. The combustor of claim 1, wherein the air inlet and the air outlet are disposed on opposite sides of the second combustor, respectively.

4. The combustion chamber of claim 1, wherein the first combustion chamber is provided with and communicates with a blowing port and the second combustion chamber is provided with and communicates with an exhaust port.

5. The combustion chamber of claim 4, wherein the first combustion chamber is in communication with one end of the second combustion chamber and the exhaust port is in communication with the other end of the second combustion chamber.

6. The combustion chamber of claim 5 wherein said exhaust port is centrally located at an end of said second combustion chamber.

7. The combustion chamber of claim 1 or 5, wherein the heat exchange tube extends from one end of the second combustion chamber in communication with the first combustion chamber to the other end.

8. The combustion chamber of claim 1, wherein the fuel combustion section comprises an ignition nozzle located at an end of the first combustion chamber remote from the second combustion chamber.

9. The combustion chamber of claim 1, wherein the first combustion chamber is circular or square in cross-section.

10. A fuel-fired outdoor air heater comprising the combustion chamber of any one of claims 1-9, wherein the fuel-fired combustion section is in communication with an oil tank.