High-speed air knife smoke collecting cover

Abstract

The utility model provides a high-speed air knife smoke collecting cover which comprises a cover body, a cover opening plate is installed on the inner side of the periphery of the cover body, and a high-speed air knife structure is formed between the peripheral side of a cover opening of the cover body and the peripheral side of the cover opening plate due to the fact that the overflowing area is reduced. Under the driving of the fan with the same power, the high-speed air knife structure forms a high negative pressure area, and smoke to be exhausted can be easily exhausted by the fan through high negative pressure, namely, the fan with the same power can generate a better air exhausting effect through the high-speed air knife structure, so that the smoke can be exhausted more effectively. Therefore, a low-power fan can be selected by a production enterprise under the condition that the flue gas collection effect is achieved, the power consumption is low, the occupied area is small, the noise is low, and the production cost is finally reduced.

Description

Technical Field

[0001] The utility model relates to a high-speed air knife flue gas collection hood. Background Art

[0002] For traditional flue gas collection hoods, if a high flue gas collection effect is to be achieved, a high-power fan needs to be used, so that a large air extraction efficiency can be achieved. And if a higher flue gas collection effect is to be achieved, a fan with even higher power needs to be used. That is to say, the traditional flue gas collection effect completely depends on the size of the fan power. And the larger the fan, the greater the power consumption, the larger the floor area and the greater the noise, ultimately resulting in an increase in production costs. Content of the Utility Model

[0003] The purpose of the utility model is to provide a high-speed air knife flue gas collection hood to solve the problems put forward in the above background art.

[0004] To solve the above technical problems, the utility model provides the following technical solution: A high-speed air knife flue gas collection hood, including a hood body, a hood plate is installed at the hood opening of the hood body, and a high-speed air knife structure is formed between the circumferences of the hood opening of the hood body and the circumferences of the hood plate.

[0005] Preferably, the cross-sectional area of the high-speed air knife structure is greater than or equal to the cross-sectional area of the flue, so as not to affect the air discharge volume.

[0006] Preferably, an elastic fastening mechanism is arranged on the high-speed air knife structure. The elastic fastening mechanism includes a plug pin column, a spring and a knob member. The spring is sleeved on the plug pin column, and the spring is located on one side of the limit ring fixed on the plug pin column. The plug pin column is inserted into the through groove of the high-speed air knife structure, and a threaded groove is arranged at the bottom of the plug pin column. The knob member is screwed into the threaded groove of the plug pin column.

[0007] Preferably, the cross-section of the middle section of the plug pin column is an elliptical structure, and the major axis of the ellipse is arranged vertically.

[0008] Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

[0009] 1. Driven by a fan with the same power, due to the reduction of the flow-through area, a high negative pressure area is formed in the high-speed air knife structure, and the flue gas to be discharged can be easily sucked away by the fan through the high negative pressure. That is to say, the high-speed air knife structure enables a fan with the same power to produce a better air extraction effect. Therefore, production enterprises can choose a small-power fan under the condition of meeting the flue gas collection standard, with small power consumption, small floor area and small noise, ultimately reducing the production cost.

[0010] 2. The utility model is installed on the high-speed air knife structure through an elastic fastening mechanism. The elastic fastening mechanism includes a pin column, a spring and a knob part. Through the cooperation of the pin column, the spring and the knob part in this application, while ensuring stable air extraction, it is convenient for the disassembly and installation of the hood plate, adjusts the cross-sectional area of the high-speed air knife structure, thereby adjusting the air flow velocity, and at the same time facilitates the regular cleaning of the hood plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification. In the drawings:

[0012] Figure 1 is the front view structural schematic diagram of the high-speed air knife flue gas collection hood of the utility model;

[0013] Figure 2 is the bottom view structural schematic diagram of the high-speed air knife flue gas collection hood of the utility model;

[0014] Figure 3 is Figure 1 the enlarged view of part A in

[0015] Figure 4 is Figure 3 the sectional view of part B in

[0016] In the figure: 1 hood body; 2 hood plate; 3 high-speed air knife structure; 4 flue; 5 elastic fastening mechanism; 51 pin column; 52 spring; 53 knob part; 6 limiting part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the utility model.

[0018] Embodiment 1: Please refer to Figure 1-2, the present utility model provides a technical solution: a high-speed air knife flue gas collection hood, which includes a hood body 1. A hood plate 2 is installed at the hood opening of the hood body 1. A high-speed air knife structure 3 is formed between the peripheral side of the hood opening of the hood body 1 and the peripheral side of the hood plate 2. Driven by a fan, the high-speed air knife structure 3 forms a high negative pressure area. The flue gas to be discharged can be easily sucked away by the fan through the high negative pressure. The cross-sectional area of the high-speed air knife structure 3 (i.e., the area between the inner peripheral side of the hood body 1 and the outer peripheral side of the hood plate 2) is greater than or equal to the cross-sectional area of the flue 4. The high-speed air knife structure 3 improves the gas flow velocity, enabling a fan of the same power to produce a better air extraction effect. Therefore, production enterprises can choose a small-power fan when meeting the flue gas collection standard, with low power consumption, small floor area, and low noise, ultimately reducing production costs.

[0019] Example 2: Please refer to Figure 1-3 , on the basis of the technical solution of Example 1, an elastic fastening mechanism 5 is provided on the high-speed air knife structure 3, that is, the elastic fastening mechanism 5 is installed on the side walls of the hood body 1 and the hood plate 2. The elastic fastening mechanism 5 includes a plug pin 51, a spring 52, and a knob 53. A spring 52 is sleeved on the plug pin 51. The spring 52 is located on one side of the limit ring fixed on the plug pin 51. The plug pin 51 is inserted into the through grooves opened on the side walls of the hood body 1 and the hood plate 2, and a threaded groove is provided at the bottom of the plug pin 51. The knob 53 is screwed into the threaded groove of the plug pin 51.

[0020] When the hood plate 2 needs to be installed, the plug pin 51 is inserted into the through grooves opened on the side walls of the hood body 1 and the hood plate 2, and a threaded groove is provided at the bottom of the plug pin 51. The knob 53 is screwed into the threaded groove. The screwing end of the knob 53 is provided with a limiting portion 6, which is similar to a U-shaped structure, facilitating screwing and simultaneously limiting the plug pin 51, so that the hood plate 2 is installed at the hood opening of the hood body 1. The elasticity of the spring 52 can strengthen the cooperation between the plug pin 51 and the knob 53, thereby strengthening the firmness of the installation of the hood plate 2. When the hood plate 2 needs to be disassembled, press the plug pin 51 forcefully to make it move, then screw the knob 53 out of the threaded groove at the bottom of the plug pin 51, and finally pull out the plug pin 51. At this time, the hood plate 2 can be taken out.

[0021] Example 3: Please refer to Figure 4 , on the basis of the technical solution of Example 2, the cross-section of the middle section of the plug pin 51 is an elliptical structure, and the long axis of the ellipse is arranged vertically. This structural design can reduce wind resistance and ensure the air extraction effect.

[0022] It should be noted that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0023] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacement of some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-speed air knife flue gas collection hood, comprising a hood body, characterized in that: A hood mouth plate is installed at the hood mouth of the hood body, and a high-speed air knife structure is formed between the circumferences of the hood mouth of the hood body and the circumferences of the hood mouth plate.

2. The high-speed air knife flue gas collection hood according to claim 1, wherein: The cross-sectional area of the high-speed air knife structure is greater than or equal to the cross-sectional area of the flue.

3. The high-speed air knife flue gas collection hood according to claim 1, characterized in that: An elastic fastening mechanism is arranged on the high-speed air knife structure. The elastic fastening mechanism includes a pin column, a spring and a knob member. The spring is sleeved on the pin column. The pin column is inserted into a through groove of the high-speed air knife structure, and a threaded groove is arranged at the bottom of the pin column. The knob member is screwed into the threaded groove of the pin column.

4. The high-speed air knife flue gas collection hood according to claim 3, wherein: The cross-section of the middle section of the pin column is an elliptical structure, and the major axis of the ellipse is arranged vertically.

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