Regenerative burner

Abstract

The utility model provides a heat accumulating type burner. The heat accumulating type burner comprises a heat accumulating box, a heat accumulator and a burner body, a partition plate is arranged in the heat storage box and divides the heat storage box into a first heat storage chamber and a second heat storage chamber. The bottoms of the first heat storage chamber and the second heat storage chamber are communicated, so that a U-shaped airflow channel is formed in the heat storage box; the plurality of heat accumulators are uniformly distributed in the U-shaped airflow channel; the burner body is fixed to the heat storage box, and the position of the burner body corresponds to that of the first heat storage chamber. The heat storage box is provided with a first vent hole, and the position of the first vent hole corresponds to that of the second heat storage chamber. High temperature and low temperature in the heat storage box are isolated through the heat storage body and the partition plate, heat exchange in the heat storage box is achieved, heat exchange in the heat storage box is sufficient and efficient, and meanwhile production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion, in particular to a heat storage burner. Background Art

[0002] The regenerative burner is a burner device that uses two burners with heat storage media as a pair to alternately allow furnace gas and combustion air to flow in, recover waste heat as high-temperature air, and achieve alternating combustion to improve combustion efficiency. The advantage of the regenerative burner is that the heat of the flue gas is used to preheat the gas in the burner, thereby improving combustion efficiency, reducing fuel consumption, and saving energy.

[0003] The existing regenerative burner, such as a regenerative burner for a heating furnace disclosed in Chinese patent CN110160049A, comprises a regenerative box, a flue gas duct, an air intake duct and a leak-proof mesh cover, wherein the upper portion of the regenerative box is provided with an upper air vent, and the lower portion is provided with a lower air vent, the upper air vent is communicated with the air channel, and a regenerative body is arranged in the regenerative box; the flue gas duct and the air intake duct are respectively communicated with the lower air vent, and a flue gas reversing valve and an air reversing valve are respectively arranged on the flue gas duct and the air intake duct; the leak-proof mesh cover is arranged on the lower air vent, and a regenerative body is arranged in the regenerative box. A supporting net is also arranged in the regenerative box, and the regenerative body is placed on the supporting net.

[0004] The heat storage body of the above-mentioned heat storage burner is placed on a supporting net for alternating circulation of heat in the heat storage box. However, the heat storage body usually has a high temperature after absorbing heat. After a certain number of years of use, the supporting net will melt under high temperature conditions, causing damage to the heat storage burner. In addition, the supporting net needs to be manufactured additionally, and the production cost is relatively high. Utility Model Content

[0005] Based on this, in order to solve the problem that the support net will be melted under high temperature, resulting in high production costs, the utility model provides a regenerative burner, and its specific technical solution is as follows:

[0006] A regenerative burner comprises a regenerative tank, a regenerative body and a burner body;

[0007] A partition plate is provided in the heat storage box, and the partition plate divides the heat storage box into a first heat storage chamber and a second heat storage chamber;

[0008] The first heat storage chamber and the second heat storage chamber are connected at the bottom, so that a U-shaped airflow channel is formed in the heat storage box;

[0009] The plurality of heat storage bodies are evenly distributed in the U-shaped air flow channel;

[0010] The burner body is fixed to the heat storage tank, and the position of the burner body corresponds to the first heat storage chamber;

[0011] The heat storage box is provided with a first vent hole, and the position of the first vent hole corresponds to the second heat storage chamber.

[0012] The above-mentioned regenerative burner divides the heat storage box into a U-shaped airflow channel through a partition plate, isolates the high and low temperatures in the heat storage box through the heat storage body and the partition plate, and realizes heat exchange in the heat storage box. There is no need to additionally make a support net or the like for supporting the heat storage body, which saves production costs and reduces the probability of damage to the regenerative burner. In addition, the setting of the U-shaped airflow channel increases the distance of gas flow in the heat storage box, making the gas flow in the heat storage box more sufficient, thereby making the heat exchange in the heat storage box fully and efficiently, thereby improving production efficiency.

[0013] Furthermore, the volume of the first heat storage chamber is greater than the volume of the second heat storage chamber.

[0014] Further, the heat storage box comprises a top wall, a side wall and a bottom wall, and the side wall connects the top wall and the bottom wall;

[0015] The partition plate is vertically fixed to the top wall, so that the heat storage tank is divided into the first heat storage chamber and the second heat storage chamber;

[0016] A communication gap is provided between the bottom of the partition plate and the bottom wall, so that the bottoms of the first heat storage chamber and the second heat storage chamber are communicated with each other.

[0017] Furthermore, the ratio of the connecting distance to the height of the partition plate is 2:7.

[0018] Furthermore, the top wall is provided with a second vent hole and a plurality of holes for heat storage bodies;

[0019] The second vent hole is located at a side where the first regenerator is located, and the second vent hole is used to connect the first regenerator and the burner body;

[0020] The side wall is provided with a heat storage body discharge hole and the first vent hole, and the first vent hole is located above the heat storage body discharge hole.

[0021] Furthermore, the heat storage tank is integrally cast.

[0022] Furthermore, the heat storage body is an alumina ball.

[0023] Furthermore, the burner body comprises a burner head and a connecting pipe, and the burner head and the connecting pipe are vertically connected;

[0024] The pipe opening of the connecting pipe is fixed to the second vent hole, and the angle between the connecting pipe and the top wall is less than 90°. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0026] Figure 1 It is a schematic structural diagram of the side surface of a regenerative burner according to an embodiment of the utility model;

[0027] Figure 2 It is a schematic structural diagram of a top view of a regenerative burner according to an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1-heat storage box, 10-partition plate, 11-first heat storage chamber, 12-second heat storage chamber, 13-top wall, 131-heat storage body loading hole, 14-side wall, 141-first air vent, 142-heat storage body unloading hole, 15-bottom wall; 2-heat storage body; 3-burner body, 31-burner head, 32-connecting pipe. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0034] like Figure 1-2 As shown, a regenerative burner in one embodiment of the utility model comprises a regenerative tank 1, a regenerative body 2 and a burner body 3; a partition plate 10 is provided in the regenerative tank 1, and the partition plate 10 divides the regenerative tank 1 into a first regenerative chamber 11 and a second regenerative chamber 12; the first regenerative chamber 11 and the second regenerative chamber 12 are connected at the bottom, so that a U-shaped air flow channel is formed in the regenerative tank 1; a plurality of regenerative bodies 2 are evenly distributed in the U-shaped air flow channel; the burner body 3 is fixed to the regenerative tank 1, and the position of the burner body 3 corresponds to the first regenerative chamber 11; the regenerative tank 1 is provided with a first vent hole 141, and the position of the first vent hole 141 corresponds to the second regenerative chamber 12.

[0035] In the utility model, when the regenerative burner is used up, the gas enters the first regenerative chamber 11 from the burner body 3, and enters the second regenerative chamber 12 along the U-shaped airflow channel, the regenerative body 2 absorbs the heat in the gas, and heat exchange is performed between the regenerative body 2 and the gas, so as to realize the heat storage operation of the regenerative box 1, reduce fuel consumption, and save energy; when the regenerative burner starts to be used, the gas enters the second regenerative chamber 12 from the first vent hole 141, and enters the first regenerative chamber 11 along the U-shaped airflow channel, the regenerative body 2 releases heat into the regenerative box 1, so that the burner body 3 can quickly return to temperature, thereby improving production efficiency. In the utility model, the partition plate 10 divides the heat storage box 1 into a U-shaped airflow channel, and the high and low temperatures in the heat storage box 1 are isolated by the heat storage body 2 and the partition plate 10, so that heat exchange in the heat storage box 1 is realized, and there is no need to additionally make a support net or the like for supporting the heat storage body 2, thereby saving production costs and reducing the probability of damage to the heat storage burner. In addition, the setting of the U-shaped airflow channel increases the distance of gas flow in the heat storage box 1, so that the gas flow in the heat storage box 1 is more sufficient, thereby making the heat exchange in the heat storage box 1 fully and efficiently, thereby improving production efficiency.

[0036] Since the gas entering the first regenerator 11 from the burner body 3 is usually hot gas, according to the characteristics of thermal expansion and contraction of gas, in one embodiment, the volume of the first regenerator 11 is greater than the volume of the second regenerator 12, so as to ensure that when the gas flows from the first regenerator 11 to the second regenerator 12, sufficient and effective heat exchange can be carried out, thereby improving the working efficiency of the heat storage tank 1. Preferably, the volume ratio between the first regenerator 11 and the second regenerator 12 is 3:2.

[0037] In one embodiment, the heat storage box 1 includes a top wall 13, a side wall 14 and a bottom wall 15, and the side wall 14 connects the top wall 13 and the bottom wall 15; the partition plate 10 is vertically fixed to the top wall 13, so that the heat storage box 1 is divided into a first heat storage chamber 11 and a second heat storage chamber 12, and the partition plate 10 separates the cold and hot gases between the first heat storage chamber 11 and the second heat storage chamber 12, so that the heat exchange in the heat storage chamber is more orderly and efficient; a connecting distance is provided between the bottom of the partition plate 10 and the bottom wall 15, so that the bottoms of the first heat storage chamber 11 and the second heat storage chamber 12 are connected, so that the gases between the first heat storage chamber 11 and the second heat storage chamber 12 can circulate with each other, which is convenient for heat exchange between the heat storage body 2 and the gas.

[0038] In order to further ensure the stability of the gas flow between the first heat storage chamber 11 and the second heat storage chamber 12, in one embodiment, the ratio of the connecting distance to the height of the partition plate 10 is 2:7.

[0039] In one embodiment, the top wall 13 is provided with a second vent hole and a plurality of heat storage holes 131; the second vent hole is located on the side where the first heat storage chamber 11 is located, and the second vent hole is used to connect the first heat storage chamber 11 and the burner body 3, so that the hot gas in the burner body 3 can flow directly to the first heat storage chamber 11, and the first heat storage method is used for preliminary heat storage, and the temperature of the gas flowing along the U-shaped air flow channel to the second heat storage chamber 12 gradually decreases, and then flows out from the first vent hole 141, completing the heat storage operation of the heat storage box 1. Similarly, the gas enters the second heat storage chamber 12 through the first vent hole 141, and the heat storage is completed. The heat body 2 releases heat to achieve the initial temperature recovery of the gas. The temperature of the gas flowing along the U-shaped airflow channel to the first heat storage chamber 11 gradually increases, and then flows to the burner body 3 through the first air vent 141, so as to achieve rapid temperature recovery of the gas and improve the working efficiency of the burner body 3. The side wall 14 is provided with a heat storage body unloading hole 142 and a first air vent 141. The first air vent 141 is located above the heat storage body unloading hole 142. The heat storage body loading hole 131 is used to load the heat storage body 2 into the heat storage box 1, and the heat storage body unloading hole 142 is used to unload the heat storage body 2 in the heat storage box 1, so as to facilitate the installation and maintenance of the heat storage box 1.

[0040] In one of the embodiments, the heat storage box 1 is cast in one piece, which makes the heat storage box 1 more solid and less prone to problems such as cracks and leakage. At the same time, the cast heat storage box 1 has higher safety performance, reducing the potential safety hazards of the heat storage box 1 during use, and the heat storage box 1 has better integrity and compactness.

[0041] In one embodiment, the heat storage body 2 is an alumina ball.

[0042] In one embodiment, the burner body 3 includes a burner head 31 and a connecting pipe 32, and the burner head 31 and the connecting pipe 32 are vertically connected;

[0043] The pipe mouth of the connecting pipe 32 is fixed to the second air vent, and the angle between the connecting pipe 32 and the top wall 13 is less than 90°, that is, the connecting pipe 32 is inclined, so that the connection between the burner body 3 and the heat storage tank 1 is more compact, while reducing the overall height of the heat storage burner. Preferably, the angle between the connecting pipe 32 and the top wall 13 is 73°, which can not only meet the supporting effect of the connecting pipe 32 on the burner head 31, but also reduce the overall height of the heat storage burner.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A regenerative burner, characterized in that: It includes a heat storage box, a heat storage body and a burner body; A partition plate is provided in the heat storage box, and the partition plate divides the heat storage box into a first heat storage chamber and a second heat storage chamber; The first heat storage chamber and the second heat storage chamber are connected at the bottom, so that a U-shaped airflow channel is formed in the heat storage box; The plurality of heat storage bodies are evenly distributed in the U-shaped air flow channel; The burner body is fixed to the heat storage tank, and the position of the burner body corresponds to the first heat storage chamber; The heat storage box is provided with a first vent hole, and the position of the first vent hole corresponds to the second heat storage chamber.

2. The regenerative burner according to claim 1, characterized in that: The volume of the first heat storage chamber is greater than the volume of the second heat storage chamber.

3. The regenerative burner according to claim 1, characterized in that: The heat storage box comprises a top wall, a side wall and a bottom wall, wherein the side wall connects the top wall and the bottom wall; The partition plate is vertically fixed to the top wall, so that the heat storage tank is divided into the first heat storage chamber and the second heat storage chamber; A communication gap is provided between the bottom of the partition plate and the bottom wall, so that the bottoms of the first heat storage chamber and the second heat storage chamber are communicated with each other.

4. The regenerative burner according to claim 3, characterized in that: The ratio of the connecting distance to the height of the partition plate is 2:

7.

5. The regenerative burner according to claim 3, characterized in that: The top wall is provided with a second vent hole and a plurality of holes for heat storage bodies; The second vent hole is located at a side where the first regenerator is located, and the second vent hole is used to connect the first regenerator and the burner body; The side wall is provided with a heat storage body discharge hole and the first vent hole, and the first vent hole is located above the heat storage body discharge hole.

6. The regenerative burner according to claim 1, characterized in that: The heat storage box is integrally cast.

7. The regenerative burner according to claim 1, characterized in that: The heat storage body is an aluminum oxide ball.

8. The regenerative burner according to claim 5, characterized in that: The burner body comprises a burner head and a connecting pipe, and the burner head and the connecting pipe are vertically connected; The pipe opening of the connecting pipe is fixed to the second vent hole, and the angle between the connecting pipe and the top wall is less than 90°.

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