CN113546935A

CN113546935A - Unburned methanol cleaning structure of hearth of methanol hot-blast stove

Info

Publication number: CN113546935A
Application number: CN202110948631.6A
Authority: CN
Inventors: 梁耀桓; 林俊杰; 吴丰
Original assignee: Guangdong Hanyu Energy Application Technology Co ltd
Current assignee: Guangdong Hanyu Energy Application Technology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2021-10-26
Anticipated expiration: 2041-08-18
Also published as: CN113546935B

Abstract

The invention provides a methanol cleaning structure for unburned methanol in a hearth of a methanol hot-blast stove, which comprises the following components: a burner and a fuel purge mechanism. The bottom of the hearth of the combustor is provided with a water drainage tank which is communicated with the outside atmosphere. The fuel cleaning mechanism comprises a water source, a water pump, a water pipe and a spray header. The input and the water source intercommunication of water pump, the output of water pump and the input intercommunication of water pipe, the shower head communicates with the output of water pipe. The water pump conveys water in the water source to the spray header through a water pipe. The spray header is accommodated in the hearth of the combustor and is arranged at the top of the hearth of the combustor. Above-mentioned methanol hot-blast furnace methanol that does not burn cleans the structure and can clear away the methanol that remains in combustor furnace after preceding scavenging and back scavenging effectively, has avoided because preceding scavenging and back scavenging in-process methanol clean the potential safety hazard that brings unclean, has improved the security performance of methanol combustor effectively.

Description

Unburned methanol cleaning structure of hearth of methanol hot-blast stove

Technical Field

The invention relates to the field of burners of methanol hot blast stoves, in particular to an unburned methanol cleaning structure of a hearth of a methanol hot blast stove.

Background

A burner of a methanol hot blast stove belongs to a pressure atomization burner, and the working principle of the burner is that methanol is atomized and sprayed out under the pressure action of a fuel pump, and then the atomized methanol is ignited by an ignition needle. The normal operation sequence of the burner should generally meet the following process requirements: starting a fan → scavenging in front → generating electric spark by an electrode → establishing ignition flame → establishing main flame → normal combustion → extinguishing the main flame → scavenging in back → stopping. The forward scavenging in the normal operation process refers to the process of forcibly blowing air to the hearth to sweep combustible gas before the combustor ignites and burns. The back scavenging refers to the process of forcibly blowing air to the hearth to sweep combustible gas after the burning flame of the burner is extinguished. The front scavenging and the back scavenging are key steps for the safe operation of the burner of the methanol hot blast stove. If the atomized methanol is not cleaned by the front scavenging air and the rear scavenging air, unburned methanol still remains in the hearth, and when the combustible reaches a certain amount, a larger potential safety hazard exists when the methanol burner is operated again, even detonation or safety problems are caused.

However, the traditional burner of the methanol hot blast stove has the potential safety hazard that the front scavenging and the back scavenging are not clean, and cannot meet the high safety performance requirement of the burner of the methanol hot blast stove on the market.

Disclosure of Invention

Based on this, it is necessary to provide a structure for cleaning unburned methanol in a hearth of a methanol hot-blast stove, aiming at the technical problems that the traditional burner of the methanol hot-blast stove has potential safety hazards of unclean cleaning of forward scavenging air and backward scavenging air, and cannot meet the high safety performance requirement of the burner of the methanol hot-blast stove on the market.

The utility model provides a structure is cleaned to methyl alcohol hot-blast furnace unburnt methyl alcohol, this structure is cleaned to methyl alcohol hot-blast furnace unburnt methyl alcohol includes: a burner and a fuel purge mechanism;

a drainage groove is formed in the bottom of a hearth of the combustor and communicated with the outside atmosphere;

the fuel cleaning mechanism comprises a water source, a water pump, a water pipe and a spray header; the input end of the water pump is communicated with the water source, the output end of the water pump is communicated with the input end of the water pipe, and the spray header is communicated with the output end of the water pipe; the water pump conveys water in the water source to the spray header through the water pipe; the spray header is contained in the hearth of the combustor and is arranged at the top of the hearth of the combustor.

In one embodiment, the drain channel is a wide-mouth channel.

In one embodiment, the burner further comprises a drain pipe through which the drain tank communicates with the outside atmosphere.

In one embodiment, the water source is a water storage tank.

In one embodiment, the fuel sweeping mechanism comprises at least two spray headers, and each spray header is uniformly distributed in a hearth of the combustor.

In one embodiment, the spray header is an atomizer.

In one embodiment, the drainage channel is opened in the middle area of the bottom of the hearth.

In one embodiment, the spray header is fixedly connected with a hearth of the combustor.

In one embodiment, a valve is arranged on the water pipe.

In one embodiment, the valve is an electrically operated valve

In the unburned methanol cleaning structure of the hearth of the methanol hot blast stove, the fuel cleaning mechanism starts to work after the burner performs forward scavenging and backward scavenging during the working process. Specifically, a water pump conveys water from a water source to a spray header through a water pipe, and the spray header sprays the water into a hearth of the combustor in the form of water mist. Residual fog state or liquid state unburnt methanol in the hearth is fused into water mist, and the water mist is impacted with the methanol and converged at the bottom of the hearth and is discharged outside from a water discharge tank arranged at the bottom of the hearth. Above-mentioned methanol hot-blast furnace methanol that does not burn cleans the structure and can clear away the methanol that remains in combustor furnace after preceding scavenging and back scavenging effectively, has avoided because preceding scavenging and back scavenging in-process methanol clean the potential safety hazard that brings unclean, has improved the security performance of methanol combustor effectively.

Drawings

FIG. 1 is a schematic structural diagram of an unburned methanol cleaning structure of a hearth of a methanol hot-blast stove in one embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, the present invention provides a structure 10 for cleaning unburned methanol in a furnace chamber of a methanol hot-air furnace, where the structure 10 for cleaning unburned methanol in the furnace chamber of the methanol hot-air furnace includes: a combustor 100 and a fuel purge mechanism 200.

The bottom of the hearth of the burner 100 is provided with a water drainage groove 101, and the water drainage groove 101 is communicated with the outside atmosphere. In this embodiment, the drain channel 101 is a wide-mouth channel, and the drain channel 101 is opened in the middle area of the bottom of the furnace. So as to collect the water stream with entrained methanol. Further, in the present embodiment, the burner 100 further includes a drain pipe 110, and the drain tank 101 communicates with the outside atmosphere through the drain pipe 110.

The fuel purge mechanism 200 includes a water source 210, a water pump 220, a water line 230, and a showerhead 240. The input end of the water pump 220 is communicated with the water source 210, the output end of the water pump 220 is communicated with the input end of the water pipe 230, and the spray header 240 is communicated with the output end of the water pipe 230. The water pump 220 delivers water from the water source 210 through a water line 230 to a showerhead 240. The shower head 240 is housed in the furnace of the burner 100 and is disposed on the top of the furnace of the burner 100. In the present embodiment, the water source 210 is a water storage tank. The fuel sweeping mechanism 200 includes at least two spray headers 240, and each spray header 240 is uniformly distributed in the furnace of the burner 100. Further, in this embodiment, the spray head 240 is an atomizing nozzle, so that the spray head 240 sprays atomized water, and the atomized water can fill the hearth of the burner 100, so as to sufficiently fuse methanol remaining in the hearth, thereby further improving the working efficiency of the fuel cleaning mechanism 200. In this embodiment, the shower head 240 is fixedly connected to the hearth of the burner 100.

In one embodiment, a valve 231 is disposed on the water pipe 230, and further, the valve 231 is an electric valve. In order to avoid impurities entering the hearth of the burner 100, in the present embodiment, a filter (not shown) is disposed on the water pipe 230 to filter out impurities in the water, so as to avoid impurities entering the hearth of the burner 100 and affecting the working efficiency of the burner 100.

In the unburned methanol cleaning structure 10 of the hearth of the methanol hot blast stove, during operation, after the burner 100 performs forward scavenging and backward scavenging, the fuel cleaning mechanism 200 starts to operate. Specifically, the water pump 220 delivers water from the water source 210 through the water pipe 230 to the shower head 240, and the shower head 240 sprays the water into the firebox of the burner 100 in the form of a water mist. The residual fog state or liquid state unburnt methanol in the hearth is merged into water mist, the water mist is impacted with the methanol and converged at the bottom of the hearth, and the water mist is discharged outside from a water discharge groove 101 formed in the bottom of the hearth. The unburned methanol cleaning structure 10 of the hearth of the methanol hot blast stove can effectively clean methanol remained in the hearth of the burner 100 after forward scavenging and backward scavenging, thereby avoiding potential safety hazards caused by incomplete cleaning of methanol in the forward scavenging and backward scavenging processes and effectively improving the safety performance of the methanol burner 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a methanol hot-blast furnace methanol that unburnt cleans structure which characterized in that includes: a burner and a fuel purge mechanism;

2. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein the drainage groove is a wide-mouth groove.

3. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein the burner further comprises a drain pipe through which the drain tank is communicated with the outside atmosphere.

4. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein the water source is a water storage tank.

5. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein the fuel cleaning mechanism comprises at least two spray headers, and each spray header is uniformly distributed in the hearth of the burner.

6. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein the spray header is an atomizing spray head.

7. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein the drainage channel is opened in the middle area of the bottom of the hearth.

8. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein the spray header is fixedly connected with the hearth of the burner.

9. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 1, wherein a valve is arranged on the water pipe.

10. The unburned methanol cleaning structure of the hearth of the methanol hot-blast stove according to claim 9, wherein the valve is an electric valve.