Uniform gas distribution structure

Abstract

The utility model relates to the technical field of furnace body gas distribution, in particular to a uniform gas distribution structure which comprises a main gas inlet pipe, the main gas inlet pipe is communicated with a branch vent pipe, the branch vent pipe is communicated with a plurality of gas distribution pipes which are arranged in parallel, each gas distribution pipe is provided with a start-stop valve, a furnace body is arranged below the gas distribution pipes, and the furnace body is provided with a gas inlet and a gas outlet. A single-strand air flow sequentially passes through the main air inlet pipe, the branch ventilation pipes and the air distribution pipe, the single-strand air flow is distributed into a plurality of small air flows through the air distribution pipe, then the air flows are uniformly transmitted into the furnace body below through opening and closing control of the start-stop valve, and the service life of the furnace body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of furnace gas distribution technology, specifically to a uniform gas distribution structure. Background Technology

[0002] Industrial production requires various furnaces, collectively known as industrial furnaces, such as metal smelting furnaces and ceramic sintering furnaces. Based on the heating method, industrial furnaces can be divided into two main categories: electric furnaces and flame furnaces. Based on the heating temperature, they can be further divided into three categories: high-temperature furnaces (>1000℃), medium-temperature furnaces (650~1000℃), and low-temperature furnaces (<650℃). Due to the need for heat preservation, all types of industrial furnaces require timely cooling after use. Industrial furnaces are generally large in size and occupy a large area. If gas enters the furnace from only one direction during the gas transmission process, the airflow may not be distributed evenly throughout the furnace, or a single airflow may be too large or uneven, potentially damaging the furnace. Therefore, improvements are necessary. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a uniform air distribution structure to solve the above problems.

[0004] The purpose of this utility model is achieved as follows: a uniform gas distribution structure includes a main air inlet pipe, a branch air inlet pipe is connected to the main air inlet pipe, a plurality of parallel gas distribution pipes are connected to the branch air inlet pipe, each gas distribution pipe is provided with a start and stop valve, and a furnace body is provided below the gas distribution pipe.

[0005] Preferably, the air distribution pipe is provided with a plurality of air distribution holes at equal intervals, and the air distribution holes are located below the start and stop valve.

[0006] Preferably, there are two branch vents, and each branch vent has four air distribution pipes.

[0007] Preferably, the air distribution pipe is provided with a plurality of V-shaped plates, and the V-shaped plates are provided with air passage holes.

[0008] Preferably, each of the V-shaped plates has two vent holes, which are symmetrically distributed about the central axis of the V-shaped plate.

[0009] Preferably, the number of the V-shaped plates corresponds one-to-one with the number of the air distribution holes, and each air distribution hole is provided with a V-shaped plate above it.

[0010] Preferably, the air distribution pipe is provided with a plurality of circular plates, each circular plate having an air passage hole, and the upper and lower ends of the circular plates having slots. The inner sidewall of the air distribution pipe is fixedly connected with a locking block that mates with the slot.

[0011] Preferably, the circular plate is located on the front side of each air distribution hole, and the locking blocks are located on the upper and lower sides of each air distribution hole respectively.

[0012] Preferably, the diameter of the air passage is smaller than the diameter of the air distribution hole.

[0013] This utility model has the following beneficial effects:

[0014] 1. This uniform gas distribution structure allows a single airflow to pass sequentially through the main air inlet pipe, branch air inlet pipe, and gas distribution pipe. The single airflow is then distributed into multiple smaller airflows through the gas distribution pipe. The opening and closing of the start and stop valves control the airflow to be evenly distributed into the furnace body below, thereby improving the service life of the furnace body.

[0015] 2. Several V-shaped plates are fixedly connected inside the air distribution pipe. Air passage holes are opened on the V-shaped plates. The central axis of the V-shaped plate coincides with the central axis of the air distribution pipe section. There are two air passage holes on the V-shaped plate. The two air passage holes are symmetrically distributed about the central axis of the V-shaped plate. The number of V-shaped plates corresponds one-to-one with the number of air distribution holes. There is a V-shaped plate above each air distribution hole. The diameter of the air passage hole is smaller than the diameter of the air distribution hole, so the air distribution effect is more uniform. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the internal structure of the air distribution pipe in Embodiment 1 of this utility model.

[0020] Figure 4 This is a schematic cross-sectional view of the internal structure of the air distribution pipe in Embodiment 2 of this utility model;

[0021] Figure 5 This is a schematic diagram of the circular plate structure of Embodiment 2 of this utility model.

[0022] The labels in the attached diagram are:

[0023] 1. Main air inlet pipe, 2. Branch air inlet pipe, 3. Air distribution pipe, 4. Start and stop valve, 5. Furnace body, 6. Air distribution hole, 7. V-shaped plate, 8. Air passage hole, 9. Circular plate, 10. Slot, 11. Slot block. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0025] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0026] Example 1:

[0027] A uniform gas distribution structure includes a main air inlet pipe 1, a branch air inlet pipe 2 connected to the main air inlet pipe 1, and several parallel gas distribution pipes 3 connected to the branch air inlet pipe 2. Each gas distribution pipe 3 is equipped with a start / stop valve 4, which can be a solenoid valve or a manual valve. A furnace body 5 is located below the gas distribution pipes 3. Preferably, there are two branch air inlet pipes 2, and four gas distribution pipes 3 are installed on each branch air inlet pipe 2. A single airflow passes through the main air inlet pipe 1, the branch air inlet pipe 2 and the gas distribution pipes 3 in sequence. The single airflow is distributed into multiple small airflows through the gas distribution pipes 3. The opening and closing of the start / stop valves 4 control the airflow to be evenly transmitted into the furnace body 5 below, thereby improving the comprehensiveness of the airflow distribution in the furnace body 5 and the service life of the furnace body 5.

[0028] In this embodiment, a plurality of air distribution holes 6 are evenly spaced on the air distribution pipe 3. The air distribution holes 6 are located below the start and stop valve 4. The air distribution holes 6 allow the airflow to not only flow out from below the air distribution pipe 3, but also flow out horizontally from the side of the air distribution pipe 3, thereby further achieving the effect of uniform air distribution.

[0029] In this embodiment, several V-shaped plates 7 are fixedly connected inside the air distribution pipe 3. Air passage holes 8 are opened on the V-shaped plates 7. The central axis of the V-shaped plates 7 coincides with the central axis of the cross section of the air distribution pipe 3. There are two air passage holes 8 on the V-shaped plates 7. The two air passage holes 8 are symmetrically distributed about the central axis of the V-shaped plates 7. The number of V-shaped plates 7 corresponds one-to-one with the number of air distribution holes 6. Each air distribution hole 6 is provided with a V-shaped plate 7 above it. The aperture value of the air passage hole 8 is smaller than the aperture value of the air distribution hole 6, so the air distribution effect is more uniform.

[0030] Example 2:

[0031] A uniform gas distribution structure includes a main air inlet pipe 1, a branch air inlet pipe 2 connected to the main air inlet pipe 1, and several parallel gas distribution pipes 3 connected to the branch air inlet pipe 2. Each gas distribution pipe 3 is equipped with a start / stop valve 4, which can be a solenoid valve or a manual valve. A furnace body 5 is located below the gas distribution pipes 3. Preferably, there are two branch air inlet pipes 2, and four gas distribution pipes 3 are installed on each branch air inlet pipe 2. A single airflow passes through the main air inlet pipe 1, the branch air inlet pipe 2 and the gas distribution pipes 3 in sequence. The single airflow is distributed into multiple small airflows through the gas distribution pipes 3. The opening and closing of the start / stop valves 4 control the airflow to be evenly transmitted into the furnace body 5 below, thereby improving the comprehensiveness of the airflow distribution in the furnace body 5 and the service life of the furnace body 5.

[0032] The air distribution pipe 3 is provided with several air distribution holes 6 evenly spaced. The air distribution holes 6 are located below the start and stop valve 4. The air distribution holes 6 allow the airflow to not only flow out from below the air distribution pipe 3, but also flow out horizontally from the side of the air distribution pipe 3, further achieving the effect of uniform air distribution.

[0033] The difference between this embodiment and Embodiment 1 is that: Figure 4-5 As shown, the air distribution pipe 3 is provided with several circular plates 9, and each circular plate 9 is provided with an air passage hole 8. The number of air passage holes 8 can preferably be five. The specific installation method of the circular plates 9 is as follows: the upper and lower ends of the circular plates 9 are provided with slots 10, and the slots 10 are rectangular in shape. The inner side wall of the air distribution pipe 3 is fixedly connected with a locking block 11 that cooperates with the slot 10. The circular plates 9 and the locking blocks 11 are inserted and installed. The circular plates 9 are located in front of each air distribution hole 6, and the locking blocks 11 are located on the upper and lower sides of each air distribution hole 6 respectively. The aperture value of the air passage hole 8 is smaller than the aperture value of the air distribution hole 6, so the air distribution effect is more uniform.

[0034] The working principle and application scenarios of this utility model are as follows: This structure is suitable for use in large industrial furnaces. Industrial furnaces require timely cooling after use. Therefore, an exhaust pipe is connected to the furnace body. The exhaust pipe transmits the gas inside the furnace to a cooling device, such as a cooling tower. After the cooling tower exchanges heat and cools the gas, it is then introduced into the furnace body 5 through the main intake pipe 1, branch intake pipe 2, and distribution pipe 3. A single airflow passes through the main intake pipe 1, branch intake pipe 2, and distribution pipe 3 in sequence. The single airflow is distributed into multiple small airflows through the distribution pipe 3. The opening and closing of the start and stop valve 4 controls the airflow to be evenly distributed into the furnace body 5 below, improving the overall distribution of airflow in the furnace body 5 and extending the service life of the furnace body 5. Several distribution holes 6 are evenly spaced on the distribution pipe 3. The distribution holes 6 are located below the start and stop valve 4. The distribution holes 6 allow the airflow to not only flow out from below the distribution pipe 3 but also flow horizontally from the side of the distribution pipe 3, further achieving a uniform gas distribution effect. Several V-shaped plates 7 are fixedly connected inside the air distribution pipe 3. Air passage holes 8 are formed on the V-shaped plates 7. The central axis of the V-shaped plates 7 coincides with the central axis of the cross-section of the air distribution pipe 3. Two air passage holes 8 are provided on each V-shaped plate 7, symmetrically distributed about the central axis of the V-shaped plate 7. The number of V-shaped plates 7 corresponds one-to-one with the number of air distribution holes 6, and each air distribution hole 6 is topped with a V-shaped plate 7. Alternatively, several circular plates 9 are provided inside the air distribution pipe 3, and the circular plates 9 are provided with… The air passage 8 can preferably be set in five. The circular plate 9 has a slot 10 at both the top and bottom. The slot 10 is rectangular in shape. The inner side wall of the air distribution pipe 3 is fixedly connected with a locking block 11 that cooperates with the slot 10. The circular plate 9 and the locking block 11 are inserted and installed. The circular plate 9 is located in front of each air distribution hole 6. The locking blocks 11 are located on the top and bottom sides of each air distribution hole 6 respectively. The diameter of the air passage 8 is smaller than that of the air distribution hole 6, so the air distribution effect is more uniform.

[0035] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be divided into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model. The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A uniform air distribution structure, comprising a main air intake pipe (1), characterized in that: The main air inlet pipe (1) is connected to a branch air pipe (2), and a number of parallel air distribution pipes (3) are connected to the branch air pipe (2). Each air distribution pipe (3) is equipped with a start / stop valve (4), and a furnace body (5) is located below the air distribution pipe (3).

2. The uniform air distribution structure according to claim 1, characterized in that: The air distribution pipe (3) is provided with a number of air distribution holes (6) evenly spaced, and the air distribution holes (6) are located below the start and stop valve (4).

3. The uniform air distribution structure according to claim 2, characterized in that: There are two branch ventilation pipes (2), and each branch ventilation pipe (2) is provided with four air distribution pipes (3).

4. The uniform air distribution structure according to claim 3, characterized in that: The air distribution pipe (3) is provided with several V-shaped plates (7), and the V-shaped plates (7) are provided with air passage holes (8).

5. The uniform air distribution structure according to claim 4, characterized in that: Each of the V-shaped plates (7) has two air holes (8), which are symmetrically distributed about the central axis of the V-shaped plate (7).

6. The uniform air distribution structure according to claim 4, characterized in that: The number of the V-shaped plates (7) corresponds one-to-one with the number of the air distribution holes (6), and each air distribution hole (6) is provided with a V-shaped plate (7) above it.

7. The uniform air distribution structure according to claim 4, characterized in that: The air distribution pipe (3) is provided with several circular plates (9), and the circular plates (9) are provided with air passage holes (8). The upper and lower ends of the circular plates are provided with slots (10). The inner side wall of the air distribution pipe (3) is fixedly connected with a locking block (11) that cooperates with the slot (10).

8. The uniform air distribution structure according to claim 7, characterized in that: The circular plate (9) is located on the front side of each air distribution hole (6), and the locking block (11) is located on the upper and lower sides of each air distribution hole (6).

9. A uniform air distribution structure according to claim 7, characterized in that: The aperture value of the air passage (8) is smaller than the aperture value of the air distribution hole (6).

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