Spiral flow guide ejector

Abstract

The utility model relates to the technical field of accumulated dust cleaning, in particular to a spiral flow guide ejector which comprises an ejector base, a conical cover is fixed to the top of the ejector base, an inner cavity is formed in the ejector base, a plurality of obliquely-formed jet holes are formed in the side wall of the ejector base, and the conical cover is fixed to the top of the ejector base. A flow guide frustum is fixed to the inner wall of the bottom of the inner cavity, a plurality of air spiral flow guide blocks distributed in an annular mode are fixed to the conical inclined face of the flow guide frustum, and the bottom ends of gaps between every two adjacent air spiral flow guide blocks correspond to the jet flow holes. According to the utility model, the diversion frustum is matched with the air spiral diversion block, so that high-pressure air can be shunted into a plurality of air flows corresponding to the jet holes, the shunted high-pressure air can be more stably and directly jetted from the jet holes, and accumulated dust is instantly stirred by utilizing the high-pressure air flows which are spirally diverted, so that the blowing area is wider, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust accumulation cleaning, in particular to a spiral flow guide ejector. Background Art

[0002] When the fuel is burned in the boiler, soot will adhere to the boiler's heating surface and flue. The accumulation of soot on the heating surface will reduce the boiler's thermal efficiency, increase energy consumption, and shorten its service life. When the soot is seriously accumulated, not only will the heat exchange deteriorate, but the resistance of the flue will increase, which will affect the normal operation of the boiler, and even force the boiler to be shut down to remove the soot, affecting production. The existing soot cleaning methods mainly include compressed air soot blowing, steam soot blowing, and chemical soot cleaning.

[0003] When using compressed air for soot blowing, an ejector is required. However, the existing ejectors mainly directly guide the compressed gas from the injection holes on the side and aim at the soot accumulated in the flue for soot blowing. The soot blowing effect is poor and it is difficult to instantly agitate the soot. Utility Model Content

[0004] The purpose of the utility model is to provide a spiral guide injector to solve the problems raised in the above background technology.

[0005] The technical solution of the utility model is: a spiral guide injector, comprising an injector base, a cone cover is fixed on the top of the injector base, an inner cavity is opened in the injector base, a plurality of obliquely arranged jet holes are opened on the side wall of the injector base, a guide cone is fixed on the inner wall of the bottom of the inner cavity, a plurality of annularly distributed air spiral guide blocks are fixed on the conical inclined surface of the guide cone, and the bottom end of the gap between two adjacent air spiral guide blocks corresponds to the jet hole.

[0006] The effect achieved by the above components is: the cone cover can be rotatably connected to the air outlet port of the compressed gas pipeline. When the compressed gas enters the inner cavity of the injector base from the top of the cone cover, the guide cone cooperates with the air spiral guide block to divert the compressed gas into multiple air flows corresponding to the jet holes. The diverted high-pressure air can be directly ejected from the jet holes more stably. The high-pressure airflow from the spiral guide can instantly agitate the accumulated dust, and the sweeping area is wider.

[0007] Preferably, the plurality of gaps formed between the air spiral guide blocks are centrally symmetrically arranged, and the gap formed by two adjacent air spiral guide blocks is narrow at the top and wide at the bottom.

[0008] The effect achieved by the above components is that the air spiral guide blocks arranged symmetrically at the center can effectively and stably divert the introduced high-pressure air.

[0009] Preferably, a threaded connection ring is fixed to the top of the injector base, and the bottom end of the cone cover is threadedly sleeved on the outside of the threaded connection ring.

[0010] The effect achieved by the above components is that the cone cover and the injector base can be easily disassembled and assembled through the threaded connection ring, which is convenient for later maintenance.

[0011] Preferably, the top end of the cone cover is fixedly connected to a connecting pipe via a bearing.

[0012] The effect achieved by the above components is that the connection work with the gas outlet port of the compressed gas pipeline can be more conveniently performed through the connecting pipe.

[0013] The utility model provides a spiral guide injector through improvement, which has the following improvements and advantages compared with the prior art:

[0014] The utility model can be rotatably connected to the air outlet port of the compressed gas pipeline through the cone cover. When the compressed gas enters the inner cavity of the injector base from the top of the cone cover, the guide cone cooperates with the air spiral guide block to split the gas into multiple air flows corresponding to the jet holes. The high-pressure air after the split can be directly ejected from the jet holes more stably. The high-pressure air flow from the spiral guide can instantly agitate the accumulated dust, and the sweeping area is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the distribution structure of the air spiral guide block in the utility model.

[0019] Description of reference numerals:

[0020] 1. Injector base; 2. Jet hole; 3. Guide cone; 4. Air spiral guide block; 5. Threaded connecting ring; 6. Cone cover; 7. Connecting pipe; 8. Inner cavity. DETAILED DESCRIPTION

[0021] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides a spiral guide injector through improvement. The technical solution of the utility model is:

[0023] In the embodiment of the present utility model, Figure 1-Figure 3 As shown, a spiral guide injector comprises an injector base 1, a cone cover 6 is fixed on the top of the injector base 1, a threaded connection ring 5 is fixed on the top of the injector base 1, the bottom end of the cone cover 6 is threadedly sleeved on the outside of the threaded connection ring 5, the threaded connection ring 5 can facilitate the disassembly and assembly of the cone cover 6 and the injector base 1, the top of the cone cover 6 is fixedly connected with a connecting pipe 7 through a bearing, the connecting pipe 7 can better facilitate the connection with the outlet port of the compressed gas pipeline, an inner cavity 8 is provided in the injector base 1, a plurality of obliquely arranged jet holes 2 are provided on the side wall of the injector base 1, a guide cone 3 is fixed to the inner wall at the bottom of the inner cavity 8, and the guide cone 3 A plurality of annularly distributed air spiral guide blocks 4 are fixed on the conical inclined surface, the bottom ends of the gaps between two adjacent air spiral guide blocks 4 correspond to the jet hole 2, the plurality of gaps formed between the air spiral guide blocks 4 are centrally symmetrically arranged, and the gap formed by two adjacent air spiral guide blocks 4 is narrow at the top and wide at the bottom. When the compressed gas enters the inner cavity 8 of the ejector base 1 from the top of the cone cover 6, the guide cone 3 cooperates with the air spiral guide block 4 to divert the compressed gas into multiple airflows corresponding to the jet hole 2, and the high-pressure air after diversion can be directly ejected from the jet hole 2 more stably. The high-pressure airflow from the spiral guide is used to instantly agitate the accumulated dust, and the sweeping area is wider.

[0024] The working principle of a spiral guide injector provided by the utility model is as follows: the connection work with the air outlet port of the compressed gas pipeline can be better facilitated through the connecting pipe 7, when the compressed gas enters the inner cavity 8 of the injector base 1 from the top of the cone cover 6, the guide cone 3 cooperates with the air spiral guide block 4 to split the gas into multiple air flows corresponding to the jet hole 2, and the high-pressure air after the split can be directly ejected from the jet hole 2 more stably, and the high-pressure airflow from the spiral guide is used to instantly agitate the accumulated dust, sweeping a wider area to complete the dust cleaning work.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spiral flow guide injector, comprising an injector base (1), characterized in that: A cone cover (6) is fixed on the top of the injector base (1), an inner cavity (8) is provided in the injector base (1), a plurality of obliquely arranged jet holes (2) are provided on the side wall of the injector base (1), a guide cone (3) is fixed on the inner wall of the bottom of the inner cavity (8), a plurality of annularly distributed air spiral guide blocks (4) are fixed on the conical inclined surface of the guide cone (3), and the bottom ends of the gaps between two adjacent air spiral guide blocks (4) correspond to the jet holes (2).

2. A spiral guide ejector according to claim 1, characterized in that: The multiple gaps formed between the air spiral guide blocks (4) are arranged in a centrally symmetrical manner, and the gap formed between two adjacent air spiral guide blocks (4) is narrow at the top and wide at the bottom.

3. A spiral guide ejector according to claim 1, characterized in that: A threaded connection ring (5) is fixed to the top of the injector base (1), and the bottom end of the cone cover (6) is threadedly sleeved on the outside of the threaded connection ring (5).

4. A spiral guide ejector according to claim 1, characterized in that: The top end of the cone cover (6) is fixedly connected to a connecting pipe (7) via a bearing.

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