Environment-friendly self-adjusting negative pressure dust removal fan

Abstract

The application discloses an environment-friendly self-adjusting negative pressure dust removal fan and particularly relates to the technical field of dust removal fans, which comprises a vertical plate, a shunt conveying and dust removal assembly arranged on the vertical plate, a protective cylinder arranged on the vertical plate, a connecting disc arranged at one end of the protective cylinder and a guide pipe arranged at one end of the connecting disc. Through the cooperation of various structures, flue gas is extracted by the impeller and then is subjected to pressure boosting in the reinforced dust removal guide cylinder body, and the airflow is subjected to shunt and blocking by the second blades, so that the backflow phenomenon of the airflow after gathering in the reinforced dust removal guide cylinder body is avoided. The liquid medium is conveyed to one end of the reaction dust removal filter element assembly through the guide pipe, and the liquid medium is contacted with the high-pressure airflow when being sprayed, and both are contacted with the sieve hole cone. The liquid medium and the gas are blocked by the sieve hole cone, so that they are diffused, fully mixed together, and the dust removal efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust removal fan, more particularly, the present application relates to an environment-friendly self-adjusting negative pressure dust removal fan. BACKGROUND

[0002] The negative pressure dust removal fan is a dust removal equipment. When the flue gas enters the inside of the dust collector, it passes through the pretreatment equipment (such as a cyclone separator, a wet desulfurization device, etc.) at a certain speed, so that the dust particles are separated out and deposited at the bottom of the equipment. With the continuous entry of flue gas, a certain negative pressure will be formed in the inside of the equipment, at which time the air suction fan starts to operate to draw clean air out from the top of the equipment. The treated flue gas is discharged to the atmosphere through the exhaust pipe, so as to achieve the purpose of purifying the environment.

[0003] Among them, the patent application number CN202121472741.1 discloses a negative pressure dust removal system. It includes: a primary dust collector, a secondary dust collector, a tertiary dust collector, a fan and a connecting pipe. The lower part of the tertiary dust collector is provided with a negative pressure balance pipe, the lower part of the negative pressure balance pipe is arranged at the water level of the water tank, and the underwater part of the negative pressure balance pipe is uniformly provided with air holes. The upper part of the negative pressure balance pipe is installed at a higher level than the water washing level in the tertiary dust collector.

[0004] When the structure is used, a negative pressure is formed in the tertiary dust collector, the water in the water tank is sucked into the tertiary dust collector through the negative pressure balance pipe, and the water level in the lower water tank gradually decreases. When the water level decreases to the position of the air holes in the lower part of the negative pressure balance pipe, air enters the tertiary dust collector through the air holes. At this time, the flue gas entering the dust collector is in a steam-water mixed state. Due to the difference in steam-water specific gravity, steam and water are separated, causing the negative pressure in the tertiary dust collector to rise. The water in the water tank is sucked into the tertiary dust collector through the negative pressure balance pipe. However, the structure is not easy to guide and transport the flowing medium when used, resulting in low dust removal efficiency of the device when used. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides an environment-friendly self-adjusting negative pressure dust removal fan, which aims to solve the problems raised in the above background.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: an environment-friendly self-adjusting negative pressure dust removal fan, comprising a vertical plate, wherein the vertical plate is provided with a shunt conveying and dust removal assembly.

[0007] The shunt conveying and dust removal assembly comprises a protective cylinder arranged on the vertical plate, one end of the protective cylinder is provided with a connecting disc, one end of the connecting disc is provided with a guide pipe, the guide pipe is located at one end of a reinforced dust removal guide cylinder body and communicates with the reinforced dust removal guide cylinder body, and the end of the protective cylinder away from the connecting disc is provided with a supporting pipe.

[0008] The reinforced dust removal flow guide cylinder body is internally provided with a traction rod, the outer side of the traction rod is distributed with a plurality of reaction dust removal filter core assemblies, and one end of each reaction dust removal filter core assembly is provided with a nozzle, the end of the reaction dust removal filter core assembly away from the nozzle is provided with a screen hole cone, the outer side of the reaction dust removal filter core assembly is provided with a suction core, the outer side of the plurality of nozzles is provided with a pad, the pad is installed on the outer side of the suction core, and the outer side of the pad extends to the inner wall of the reinforced dust removal flow guide cylinder body.

[0009] One end of the traction rod is provided with a connecting piece, one side of the connecting piece is provided with a conical cylinder, the vertical cross-sectional shape of the conical cylinder is conical, the conical cylinder is internally provided with an extension rod, the extension rod is installed at one end of the traction rod, the outer side of the conical cylinder is distributed with a plurality of detectors, one end of each detector is provided with a transition core, the end of the detector away from the transition core is provided with a flow divider, the outer side of the extension rod is provided with a bearing ring, the outer side of the reinforced dust removal flow guide cylinder body is distributed with a plurality of guide pipes, and one end of each guide pipe extends into the reinforced dust removal flow guide cylinder body.

[0010] It can be seen that in the above technical solution, after the airflow is gathered and split in the reinforced dust removal flow guide cylinder body, the liquid medium is transported to one end of the reaction dust removal filter core assembly through the guide pipe, the liquid medium is sprayed and contacted with the high-pressure airflow, both of which are contacted with the screen hole cone, the liquid medium and the gas are blocked by the screen hole cone, so that they are diffused and mixed together, and then react and filter on the reaction dust removal filter core assembly, and when filtering, the water in the reaction dust removal filter core assembly is transferred to the suction core, after the flue gas is filtered by the reaction dust removal filter core assembly, the airflow is gathered and sprayed through the nozzle, the transition core guides the airflow, and then the airflow is contacted with the detector to detect the airflow, the airflow is guided and transported by the flow divider, and when the airflow is sprayed, it is contacted with the second elastic stopper, so that the second elastic stopper and the first elastic stopper are opened, facilitating the airflow transportation.

[0011] The surface side of the reinforced dust removal flow guide cylinder is provided with a controller, the inner wall side of the reinforced dust removal flow guide cylinder is provided with a flowmeter, the detector is provided with a lead wire, one end of the traction rod is provided with an impeller, the side of the impeller is provided with a plurality of first blades, each of the first blades is sleeved on the outside of the traction rod, a plurality of the first blades are detachably connected with the traction rod, and a limiting cavity is formed between each two adjacent first blades, a second blade is arranged in the limiting cavity and mounted on the inner wall of the reinforced dust removal flow guide cylinder, one end of the reinforced dust removal flow guide cylinder is provided with a plurality of first elastic stoppers, and each of the first elastic stoppers is movably connected with the reinforced dust removal flow guide cylinder through a hinge, one side of each of the plurality of first elastic stoppers is provided with a second elastic stopper, and the second elastic stopper is mounted on one end of the reinforced dust removal flow guide cylinder.

[0012] It can be seen that, in the above technical solution, the traction rod rotates the impeller, and the traction rod can also rotate the plurality of first blades when rotating, the flue gas is pressurized by the first blades after being extracted by the impeller in the reinforced dust removal flow guide cylinder, and the airflow is divided and blocked by each second blade to avoid backflow after the airflow is gathered in the reinforced dust removal flow guide cylinder, and the flow rate of the airflow during conveying is detected by the flowmeter.

[0013] Technical effects and advantages of the present application:

[0014] The traction rod and the impeller rotate, the traction rod can also rotate the plurality of first blades when rotating, the flue gas is pressurized by the first blades after being extracted by the impeller in the reinforced dust removal flow guide cylinder, and the airflow is divided and blocked by each second blade to avoid backflow after the airflow is gathered in the reinforced dust removal flow guide cylinder, and the flow rate of the airflow during conveying is detected by the flowmeter.

[0015] After the airflow is gathered and divided in the reinforced dust removal flow guide cylinder, the liquid medium is conveyed to one end of the reaction dust removal filter element assembly through the conduit, the liquid medium is sprayed and contacted with the high-pressure airflow, both of which are contacted with the sieve hole cone, the liquid medium and the gas are blocked by the sieve hole cone to diffuse, so that they are fully mixed together, and then react and filter on the reaction dust removal filter element assembly, and the water in the reaction dust removal filter element assembly is transferred to the suction core during filtering, so that it is collected.

[0016] After the flue gas is filtered by the reaction dust removal filter element assembly, the airflow is gathered and sprayed out through the nozzle, and the transition core guides the airflow, then the airflow is contacted with the detector to be detected, the airflow is divided by the flow dividing piece to be adsorbed and filtered again, and the conical cylinder is used for dividing and conveying the airflow outside and inside.

[0017] The gas flow is in contact with the second elastic blocking piece when being sprayed, so that the second elastic blocking piece and the first elastic blocking piece are opened, and the second elastic blocking piece and the first elastic blocking piece lose the pressure of the gas flow and return to block the device.

[0018] In summary, the overall design is simple and reasonable in structure. Through the cooperation of various structures, the flue gas is extracted by the impeller, then pressurized by the first blade in the reinforced dust removal flow guide cylinder, and then shunted and blocked by the second blade to avoid backflow after the flue gas is gathered in the reinforced dust removal flow guide cylinder. At the same time, the flow rate of the gas flow during conveying is detected by the flow meter. The liquid medium is conveyed to one end of the reaction dust removal filter element assembly through the conduit. The liquid medium is in contact with the high-pressure gas flow when being sprayed, and both are in contact with the screen hole cone. The liquid medium and the gas are blocked by the screen hole cone, so that they are diffused and mixed together. Then, the mixture is reacted and filtered on the reaction dust removal filter element assembly. The transition core guides the mixture. Then, the gas flow is in contact with the detector for detection. The gas flow is shunted by the shunting piece for adsorption and filtration. The conical cylinder is used for shunting and conveying the gas flow outside and inside to improve the dust removal efficiency and effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings needed to be used in some embodiments of the present disclosure. Obviously, the drawings in the following description are only some drawings of the embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limited to the actual size of the product, the actual flow of the method, the actual time sequence of the signal, etc. involved in the embodiments of the present disclosure.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 2 It is a schematic diagram of the installation of the shunt conveying dust removal assembly of the present application.

[0022] Figure 3 It is a side view of the shunt conveying dust removal assembly of the present application.

[0023] Figure 4 It is a sectional view of the shunt conveying dust removal assembly of the present application.

[0024] Figure 5 It is a side view of the shunt conveying dust removal assembly of the present application.

[0025] Figure 6 It is a sectional view of the reinforced dust removal flow guide cylinder of the present application.

[0026] Figure 7The schematic view of the reaction dedusting filter core assembly, the screen hole cone and the traction rod installed in the reinforced dedusting flow guide cylinder body.

[0027] Figure 8 The schematic view of the local structure at A in the present application. Figure 7

[0028] The reference signs are as follows: 1, vertical plate; 101, protection cylinder; 102, connecting disc; 103, guide pipe; 104, support pipe;

[0029] 2, reinforced dedusting flow guide cylinder body; 201, traction rod; 202, reaction dedusting filter core assembly; 203, nozzle; 204, pad plate; 205, screen hole cone; 206, suction core;

[0030] 3, connecting piece; 301, conical cylinder; 302, extension rod; 303, detector; 304, transition core; 305, flow dividing piece; 306, bearing ring; 307, guide pipe;

[0031] 4, controller; 401, flow meter; 402, wire; 403, impeller; 404, first blade; 405, limiting cavity; 406, second blade; 407, first elastic stopper; 408, second elastic stopper. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] The terms "first", "second", "third" in the embodiments of the present application are only used for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, the process, method, system, product or equipment including a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units not listed, or optionally includes other steps or units inherent to the process, method, product or equipment.

[0034] ​Reference to an "embodiment" in this text means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0035] As shown in the accompanying drawings, the environment-friendly self-adjusting negative pressure dust removal fan comprises a protective cylinder 101 provided on a vertical plate 1, a connecting disc 102 is arranged at one end of the protective cylinder 101, a guide pipe 103 is arranged at one end of the connecting disc 102, the guide pipe 103 is located at one end of a reinforced dust removal guide cylinder 2 and is in communication with the reinforced dust removal guide cylinder 2, and a supporting pipe 104 is arranged at the end of the protective cylinder 101 away from the connecting disc 102. Figures 1-8 As shown in the accompanying drawings, the environment-friendly self-adjusting negative pressure dust removal fan comprises a protective cylinder 101 provided on a vertical plate 1, a connecting disc 102 is arranged at one end of the protective cylinder 101, a guide pipe 103 is arranged at one end of the connecting disc 102, the guide pipe 103 is located at one end of a reinforced dust removal guide cylinder 2 and is in communication with the reinforced dust removal guide cylinder 2, and a supporting pipe 104 is arranged at the end of the protective cylinder 101 away from the connecting disc 102.

[0036] As shown in the accompanying drawings, the environment-friendly self-adjusting negative pressure dust removal fan comprises a protective cylinder 101 provided on a vertical plate 1, a connecting disc 102 is arranged at one end of the protective cylinder 101, a guide pipe 103 is arranged at one end of the connecting disc 102, the guide pipe 103 is located at one end of a reinforced dust removal guide cylinder 2 and is in communication with the reinforced dust removal guide cylinder 2, and a supporting pipe 104 is arranged at the end of the protective cylinder 101 away from the connecting disc 102. Figure 1 2 As shown in the accompanying drawings, the environment-friendly self-adjusting negative pressure dust removal fan comprises a protective cylinder 101 provided on a vertical plate 1, a connecting disc 102 is arranged at one end of the protective cylinder 101, a guide pipe 103 is arranged at one end of the connecting disc 102, the guide pipe 103 is located at one end of a reinforced dust removal guide cylinder 2 and is in communication with the reinforced dust removal guide cylinder 2, and a supporting pipe 104 is arranged at the end of the protective cylinder 101 away from the connecting disc 102.

[0037] As shown in the accompanying drawings, the environment-friendly self-adjusting negative pressure dust removal fan comprises a protective cylinder 101 provided on a vertical plate 1, a connecting disc 102 is arranged at one end of the protective cylinder 101, a guide pipe 103 is arranged at one end of the connecting disc 102, the guide pipe 103 is located at one end of a reinforced dust removal guide cylinder 2 and is in communication with the reinforced dust removal guide cylinder 2, and a supporting pipe 104 is arranged at the end of the protective cylinder 101 away from the connecting disc 102. Figure 7 As shown in the accompanying drawings, the environment-friendly self-adjusting negative pressure dust removal fan comprises a protective cylinder 101 provided on a vertical plate 1, a connecting disc 102 is arranged at one end of the protective cylinder 101, a guide pipe 103 is arranged at one end of the connecting disc 102, the guide pipe 103 is located at one end of a reinforced dust removal guide cylinder 2 and is in communication with the reinforced dust removal guide cylinder 2, and a supporting pipe 104 is arranged at the end of the protective cylinder 101 away from the connecting disc 102.As shown in the accompanying drawings, the environment-friendly self-adjusting negative pressure dust removal fan comprises a protective cylinder 101 provided on a vertical plate 1, a connecting disc 102 is arranged at one end of the protective cylinder 101, a guide pipe 103 is arranged at one end of the connecting disc 102, the guide pipe 103 is located at one end of a reinforced dust removal guide cylinder 2 and is in communication with the reinforced dust removal guide cylinder 2, and a supporting pipe 104 is arranged at the end of the protective cylinder 101 away from the connecting disc 102.

[0038] As per the instruction manual Figure 4 and 8 A connector 3 is provided at one end of the traction rod 201 shown. A conical cylinder 301 is provided on one side of the connector 3. The vertical cross-sectional shape of the conical cylinder 301 is conical. An extension rod 302 is provided inside the conical cylinder 301. The extension rod 302 is installed at one end of the traction rod 201. Several detectors 303 are distributed on the outer side of the conical cylinder 301. A transition core 304 is provided at one end of each detector 303. A diverter 305 is provided at the end of the detector 303 away from the transition core 304. A bearing ring 306 is provided on the outer side of the extension rod 302. Several conduits 307 are distributed on the outer side of the enhanced dust removal guide cylinder 2. One end of each conduit 307 extends into the enhanced dust removal guide cylinder 2.

[0039] As per the instruction manual Figure 3 and 6 A controller 4 is installed on one side of the surface of the reinforced dust removal guide cylinder 2 shown. A flow meter 401 is installed on one side of the inner wall of the reinforced dust removal guide cylinder 2. A wire 402 is installed on the detector 303. An impeller 403 is installed at one end of the traction rod 201. Several first blades 404 are installed on one side of the impeller 403, and each first blade 404 is sleeved on the outside of the traction rod 201. The multiple first blades 404 are detachably connected to the traction rod 201, and each pair of adjacent first blades 404 are connected together. A limiting cavity 405 is formed between them, and a second blade 406 is provided in the limiting cavity 405. The second blade 406 is installed on the inner wall of the reinforced dust removal guide cylinder 2. A plurality of first elastic baffles 407 are provided at one end of the reinforced dust removal guide cylinder 2, and each first elastic baffle 407 is movably connected to the reinforced dust removal guide cylinder 2 through a hinge. A second elastic baffle 408 is provided on one side of each of the plurality of first elastic baffles 407, and the second elastic baffle 408 is installed at one end of the reinforced dust removal guide cylinder 2.

[0040] When using the above structure, the staff installs the device at the designated location. When removing dust from the flue gas, the impeller 403 rotates through the traction rod 201. When the traction rod 201 rotates, it can also drive multiple first blades 404 to rotate. After the flue gas is drawn in by the impeller 403, it is pressurized by the first blades 404 in the enhanced dust removal guide cylinder 2. The airflow is then diverted and blocked by each second blade 406 to prevent the airflow from converging in the enhanced dust removal guide cylinder 2 and causing backflow. At the same time, the flow rate during air delivery is detected by the flow meter 401.

[0041] After the airflow is gathered and split in the reinforced dust removal flow guide cylinder 2, the liquid medium is transported to one end of the reaction dust removal filter element assembly 202 through the conduit 307, and the liquid medium is contacted with the high-pressure airflow when sprayed, and both are contacted with the screen hole cone 205, the liquid medium and the gas are blocked by the screen hole cone 205, so that they are diffused, facilitating the full mixing of the two, and then the reaction and filtration on the reaction dust removal filter element assembly 202, and the water is transferred to the suction core 206 in the reaction dust removal filter element assembly 202 during the filtration.

[0042] At the same time, after the flue gas is filtered through the reaction dust removal filter element assembly 202, the airflow is gathered and sprayed through the nozzle 203, the transition core 304 guides the airflow, then the airflow is contacted with the detector 303, the airflow is guided and sprayed through the flow splitter 305, and the airflow is contacted with the second elastic stopper 408 when sprayed, so that the second elastic stopper 408 and the first elastic stopper 407 are opened.

[0043] Different from the prior art, the application discloses an environment-friendly self-adjusting negative pressure dust removal fan, wherein after the flue gas is extracted through the impeller 403, the flue gas is pressurized through the first blade 404 in the reinforced dust removal flow guide cylinder 2, the airflow is split and blocked through the second blades 406, so that the airflow is not backflowed after being gathered in the reinforced dust removal flow guide cylinder 2, and the flow rate of the airflow during the transportation is detected through the flowmeter 401, the liquid medium is transported to one end of the reaction dust removal filter element assembly 202 through the conduit 307, the liquid medium is contacted with the high-pressure airflow when sprayed, and both are contacted with the screen hole cone 205, the liquid medium and the gas are blocked by the screen hole cone 205, so that they are diffused, facilitating the full mixing of the two, and then the reaction and filtration on the reaction dust removal filter element assembly 202, the transition core 304 guides the airflow, then the airflow is contacted with the detector 303, the airflow is detected, the airflow is split through the flow splitter 305, and then the airflow is adsorbed and filtered again, and the conical cylinder 301 is used for splitting and transporting the airflow outside and inside, so that the dust removal efficiency and effect are improved.

[0044] The above is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An environmentally friendly self-adjusting negative pressure dust removal fan, comprising a vertical plate (1), characterized in that: The vertical plate (1) is provided with a shunt conveying dust removal assembly; The shunt conveying dust removal assembly comprises a protective cylinder (101) arranged on the vertical plate (1), and one end of the protective cylinder (101) is provided with a connecting disc (102); The protective cylinder (101) is internally provided with a reinforced dust removal flow guide cylinder body (2), the inside of the reinforced dust removal flow guide cylinder body (2) is provided with a traction rod (201), the outside of the traction rod (201) is distributed with a plurality of reaction dust removal filter core assemblies (202), one end of each of the reaction dust removal filter core assemblies (202) is provided with a nozzle (203), and the end of the reaction dust removal filter core assembly (202) away from the nozzle (203) is provided with a sieve hole cone (205), and the outside of the reaction dust removal filter core assembly (202) is provided with a suction core (206); One end of the traction rod (201) is provided with a connecting piece (3), one side of the connecting piece (3) is provided with a conical cylinder (301), the vertical cross-sectional shape of the conical cylinder (301) is conical, the conical cylinder (301) is internally provided with an extension rod (302), and the extension rod (302) is installed at one end of the traction rod (201); One end of the traction rod (201) is provided with an impeller (403), one side of the impeller (403) is provided with a plurality of first blades (404), and each of the first blades (404) is sleeved on the outside of the traction rod (201); Each of the plurality of first blades (404) is detachably connected with the traction rod (201), and a limiting cavity (405) is formed between each two adjacent first blades (404), a second blade (406) is arranged in the limiting cavity (405), and the second blade (406) is installed on the inner wall of the reinforced dust removal flow guide cylinder body (2).

2. The environment-friendly self-adjusting negative pressure dust removal fan according to claim 1, characterized in that: One end of the connecting disc (102) is provided with a guide pipe (103), the guide pipe (103) is located at one end of the reinforced dust removal flow guide cylinder body (2) and is in communication with the reinforced dust removal flow guide cylinder body (2), and one end of the protective cylinder (101) away from the connecting disc (102) is provided with a support pipe (104).

3. The environment-friendly self-adjusting negative pressure dust removal fan according to claim 1, characterized in that: The outside of each of the plurality of nozzles (203) is provided with a backing plate (204), the backing plate (204) is installed on the outside of the suction core (206), and the outside of the backing plate (204) extends to the inner wall of the reinforced dust removal flow guide cylinder body (2).

4. The environment-friendly self-adjusting negative pressure dust removal fan according to claim 1, characterized in that: The outside of the conical cylinder (301) is distributed with a plurality of detectors (303), one end of each of the detectors (303) is provided with a transition core (304), one end of the detector (303) away from the transition core (304) is provided with a shunt (305), and the detector (303) is provided with a wire (402).

5. The environment-friendly self-adjusting negative pressure dust removal fan according to claim 1, characterized in that: The outside of the extension rod (302) is provided with a bearing ring (306), the outside of the reinforced dust removal flow guide cylinder body (2) is distributed with a plurality of guide pipes (307), and one end of each of the guide pipes (307) extends into the reinforced dust removal flow guide cylinder body (2).

6. The environment-friendly self-adjusting negative pressure dust removal fan according to claim 1, characterized in that: The surface side of the reinforced dust removal flow guide cylinder body (2) is provided with a controller (4), and the inner wall side of the reinforced dust removal flow guide cylinder body (2) is provided with a flowmeter (401).

7. The environment-friendly self-adjusting negative pressure dust removal fan according to claim 1, characterized in that: One end of the reinforced dust removal flow guide cylinder body (2) is provided with a plurality of first elastic stop pieces (407), and each first elastic stop piece (407) is hingedly connected with the reinforced dust removal flow guide cylinder body (2).

8. The environment-friendly self-adjusting negative pressure dust removal fan according to claim 7, characterized in that: One side of each of the plurality of first elastic stop pieces (407) is provided with a second elastic stop piece (408), and the second elastic stop piece (408) is installed at one end of the reinforced dust removal flow guide cylinder body (2).

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