Dedusting and purifying device for mushroom production room

Abstract

The invention discloses a dust removal and purification device for a mushroom production room. The dust removal and purification device comprises a first fan, a cyclone separator, a filter purifier and a second fan, and the first fan is sequentially connected with the cyclone separator, the filter purifier and the second fan through pipelines; the fan comprises a shell, an impeller and a rotating shaft, the shell comprises a front side wall and a rear side wall, and the impeller comprises a front cover plate, a rear cover plate and blades; the device is characterized in that a first adjusting disc is arranged between the front side wall and the front cover plate, the first adjusting disc can axially move and rotate under the action of airflow, a second adjusting disc is arranged between the rear side wall and the rear cover plate, and the second adjusting disc can axially move and rotate under the action of airflow. Pressure distribution on the two sides of the impeller can be effectively adjusted, axial force is balanced, axial movement of the rotor is prevented, and therefore the operation stability of the fan is improved, and the service life of the fan is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of mushroom production equipment / process, and in particular to a dust removal and purification device used in a mushroom production room. Background Art

[0002] The existing dust removal and purification device used in mushroom production rooms includes a first fan, a cyclone separator, a filter purifier, and a second fan. The first fan is connected to the cyclone separator, the filter purifier, and the second fan in sequence through a pipeline; the first fan or the second fan includes a housing, an impeller, and a rotating shaft. The housing includes a front side wall, a rear side wall, and an inlet pipe. The impeller includes a front cover plate, a rear cover plate, and blades. A plurality of blades are distributed along the circumference and fixedly connected between the front cover plate and the rear cover plate; the axial force can be balanced through a variety of ways (such as a balance plate, a balance drum, a balance hole, a pressure regulating pipeline, etc.). However, the existing dust removal and purification fans still have problems such as uneven pressure distribution on both sides of the impeller, poor axial force balancing effect, and the operating stability and service life need to be further improved. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a dust removal and purification device for a mushroom production room. Through the design of the first adjusting disk, the second adjusting disk and the adjusting ring of the fan, the pressure distribution on both sides of the impeller can be effectively adjusted, the axial force can be balanced, and the axial movement of the rotor can be prevented, thereby improving the operating stability and service life of the fan.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A dust removal and purification device for a mushroom production room, comprising a first fan, a cyclone separator, a filter purifier, and a second fan, wherein the first fan is connected to the cyclone separator, the filter purifier, and the second fan in sequence through a pipeline; the first fan or the second fan comprises a casing, an impeller, and a rotating shaft, the casing comprises a front side wall, a rear side wall, and an inlet pipe, the impeller comprises a front cover plate, a rear cover plate, and blades, a plurality of blades are distributed circumferentially and fixedly connected between the front cover plate and the rear cover plate; it is characterized in that: a first adjusting disk is arranged between the front side wall and the front cover plate, the first adjusting disk can be axially moved and / or rotated under the action of airflow, and a second adjusting disk is arranged between the rear side wall and the rear cover plate, the second adjusting disk can be axially moved and / or rotated under the action of airflow.

[0006] Furthermore, the first adjustment disk includes a first disk body, a first outer ring, a first sealing ring, and a first adjustment hole. The first outer ring is arranged on the outer periphery of the first side surface of the first disk body, and the inner diameter of the first outer ring is larger than the outer diameter of the front cover plate. The first sealing ring is arranged on the radial outer side of the second side surface of the first disk body, and the first adjustment hole is opened on the radial inner side of the first disk body. The first adjustment hole is an axial through hole and is arranged adjacent to the mouth ring seal.

[0007] Furthermore, the second adjustment disk includes a second disk body, a second outer ring, a second sealing ring, and a second adjustment hole. An outer peripheral edge of a first side surface of the second disk body is provided with the second outer ring, an inner diameter of the second outer ring being greater than an outer diameter of the rear cover plate. A radially outer side of a second side surface of the second disk body is provided with the second sealing ring. A radially inner side of the second disk body is provided with the second adjustment hole, the second adjustment hole being an axial through hole and being disposed adjacent to the rotating shaft.

[0008] Furthermore, a bearing and thrust effect of an air bearing is formed between an inner peripheral surface and a side surface of a radially inner end of the first adjustment disk and corresponding mating surfaces, and a bearing and thrust effect of an air bearing is formed between an inner peripheral surface and a side surface of a radially inner end of the second adjustment disk and corresponding mating surfaces.

[0009] Furthermore, a first inclined surface is provided at a free end of the first outer ring, the first inclined surface being substantially aligned with a corresponding inclined portion of an annular flow passage of the housing. A second inclined surface is provided at a free end of the second outer ring, the second inclined surface being substantially aligned with a corresponding inclined portion of the annular flow passage of the housing.

[0010] Furthermore, an annular cavity and a first communication hole are formed in a rear side wall of the housing, the first communication hole being directly connected to the annular cavity. A second communication hole is formed in a front side wall. The first communication hole is connected to the second communication hole through a pressure regulating pipeline, and a control regulating valve is provided on the pressure regulating pipeline.

[0011] Furthermore, an adjustment ring is further included. The adjustment ring is mounted on the first adjustment disk and is axially movable relative to the first adjustment disk. The adjustment ring is disposed between the first sealing ring and the first adjustment hole.

[0012] Furthermore, the adjustment ring includes an adjustment cavity and an adjustment ring body. An adjustment cavity is formed between the adjustment ring body and the first adjustment disk. A guiding groove is formed in the first adjustment disk. The adjustment ring body is engaged with the guiding groove through guiding protrusions on two radial sides thereof.

[0013] Furthermore, a spring is mounted in the adjustment cavity. The spring provides an axial pre-tightening force. One or more third adjustment holes are formed in the first adjustment disk. The third adjustment holes are respectively communicated with a gap between the first adjustment disk and the front side wall and the adjustment cavity. The adjustment ring is axially movable relative to the first adjustment disk under the action of air flow pressure.

[0014] Furthermore, a plurality of grooves are provided on a side surface of the adjustment ring adjacent to the front cover plate. The grooves are annular grooves or spiral grooves, and the plurality of grooves are distributed radially.

[0015] A dust removal and purification device for a mushroom production room according to the present invention, through the design of the first adjustment disk and the second adjustment disk of the fan, the first adjustment disk can axially move and / or rotate under the action of air flow, and the second adjustment disk can axially move and / or rotate under the action of air flow (that is, the axial position can be automatically adjusted by air flow pressure), which can effectively adjust the pressure distribution on both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and thus improve the operation stability and service life of the fan.

[0016] Through the design of the adjustment ring of the fan according to the present invention, the adjustment ring can axially move relative to the first adjustment disk under the action of air flow pressure (that is, the axial position can be automatically adjusted by air pressure), and a plurality of grooves are provided on one side surface of the adjustment ring adjacent to the front cover plate, which can more efficiently adjust the pressure distribution on both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and thus improve the operation stability and service life of the fan. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the dust removal and purification device for a mushroom production room according to the present invention;

[0018] Figure 2 It is a schematic structural diagram of the fan of the dust removal and purification device according to the present invention;

[0019] Figure 3 It is a partially enlarged schematic structural diagram of the fan of the dust removal and purification device according to the present invention;

[0020] Figure 4 It is a partially enlarged schematic structural diagram of the fan of the dust removal and purification device according to the present invention.

[0021] In the figure: the first fan 10, the cyclone separator 20, the filter purifier 30, the second fan 40, the housing 1, the impeller 2, the rotating shaft 3, the first adjustment disk 4, the second adjustment disk 5, the pressure regulating pipeline 6, the adjustment ring 7, the front side wall 11, the rear side wall 12, the inlet pipe 13, the annular cavity 14, the first communication hole 15, the second communication hole 16, the front cover plate 21, the rear cover plate 22, the blade 23, the first disk body 41, the first outer ring 42, the first sealing ring 43, the first adjustment hole 44, the second disk body 51, the second outer ring 52, the second sealing ring 53, the second adjustment hole 54, the control regulating valve 61, the adjustment cavity 71, the adjustment ring body 72, the guide groove 73, the third adjustment hole 74, the spring 75, the groove 76. Detailed Description of the Invention

[0022] To make the technical solution and its advantages of the present invention clearer, the following will further clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. It can be understood that the specific embodiments described herein are only partial embodiments of the present invention, which are only used to explain the present invention rather than limit the present invention. It should be noted that for the convenience of description, only the parts / structures related to the present invention are shown in the drawings, and other related parts can refer to the general design. Without conflict, the embodiments in the present invention and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0023] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the present invention should have the ordinary meaning understood by those of ordinary skill in the art to which the present invention pertains.

[0024] The following further describes the present invention in detail with reference to the accompanying drawings.

[0025] As Figures 1-4 shown, a dust removal and purification device for a mushroom production room includes a first fan 10, a cyclone separator 20, a filter purifier 30, and a second fan 40. The first fan 10 is connected to the cyclone separator 20 through a pipeline, the other end of the cyclone separator 20 is connected to the filter purifier 30 through a pipeline, and the other end of the filter purifier 30 is connected to the second fan 40 through a pipeline. The first fan 10 and / or the second fan 40 is a centrifugal fan.

[0026] The first fan 10 and / or the second fan 40 includes a housing 1, an impeller 2, and a rotating shaft 3. The impeller 2 is rotatably installed in the housing 1 and on the rotating shaft 3. The rotating shaft 3 is in transmission connection with the motor. The housing 1 includes a front side wall 11, a rear side wall 12, and an inlet pipe 13. The impeller 2 includes a front cover plate 21, a rear cover plate 22, and blades 23. A plurality of blades 23 are circumferentially distributed and fixedly connected between the front cover plate 21 and the rear cover plate 22. It is characterized in that: a first adjustment disk 4 is provided between the front side wall 11 and the front cover plate 21, and the first adjustment disk 4 can axially move and rotate under the action of air flow. A second adjustment disk 5 is provided between the rear side wall 12 and the rear cover plate 22, and the second adjustment disk 5 can axially move and rotate under the action of air flow.

[0027] Further, the first adjustment disc 4 includes a first disc body 41, a first outer ring 42, a first sealing ring 43, and a first adjustment hole 44. The outer peripheral edge of the first side surface of the first disc body 41 is provided with the first outer ring 42, the inner diameter of the first outer ring 42 is larger than the outer diameter of the front cover plate 21, the radially outer side of the second side surface of the first disc body 41 is provided with the first sealing ring 43, and the radially inner side of the first disc body 41 is provided with the first adjustment hole 44. The first adjustment hole 44 is an axial through hole and is arranged adjacent to the seal of the impeller shroud.

[0028] The second adjustment disc 5 includes a second disc body 51, a second outer ring 52, a second sealing ring 53, and a second adjustment hole 54. The outer peripheral edge of the first side surface of the second disc body 51 is provided with the second outer ring 52, the inner diameter of the second outer ring 52 is larger than the outer diameter of the rear cover plate 22, the radially outer side of the second side surface of the second disc body 51 is provided with the second sealing ring 53, and the radially inner side of the second disc body 51 is provided with the second adjustment hole 54. The second adjustment hole 54 is an axial through hole and is arranged adjacent to the rotating shaft 3.

[0029] Between the inner peripheral surface and the side surface of the radially inner end of the first adjustment disc 4 and the corresponding mating surface, a supporting and thrust effect of the air bearing is formed. Between the inner peripheral surface and the side surface of the radially inner end of the second adjustment disc 5 and the corresponding mating surface, a supporting and thrust effect of the air bearing is formed.

[0030] The free end of the first outer ring 42 is provided with a first inclined surface, and the first inclined surface is generally aligned with the corresponding inclined part of the annular flow channel of the housing 1. The free end of the second outer ring 52 is provided with a second inclined surface, and the second inclined surface is generally aligned with the corresponding inclined part of the annular flow channel of the housing 1.

[0031] Through the design of the first adjustment disc 4 and the second adjustment disc 5, the first adjustment disc 4 can axially move and rotate under the action of the air flow, and the second adjustment disc 5 can axially move and rotate under the action of the air flow (that is, the axial position can be automatically adjusted by the air flow pressure). The pressure distribution on both sides of the impeller 2 can be effectively adjusted, the axial force can be balanced, and the axial movement of the rotor can be prevented, thereby improving the operation stability and service life of the fan.

[0032] In an embodiment, an annular cavity 14 and a first communication hole 15 are formed on the rear side wall 12 of the housing 1. The first communication hole 15 is directly connected to the annular cavity 14. A second communication hole 16 is formed on the front side wall 11. The first communication hole 15 is connected to the second communication hole 16 through a pressure regulating pipeline 6, and a control regulating valve 61 is arranged on the pressure regulating pipeline 6.

[0033] Through the design of the pressure regulating pipeline 6, the present invention can guide the high-pressure fluid between the second regulating disc 5 and the rear side wall 12 to the gap between the first regulating disc 4 and the front side wall 11, further adjust the pressure distribution on both sides of the impeller 2, balance the axial force, prevent the axial movement of the rotor, and thus improve the operation stability and service life of the fan.

[0034] In one embodiment, it further includes an adjusting ring 7. The adjusting ring 7 is installed on the first regulating disc 4 and is axially movable relative to the first regulating disc 4. The adjusting ring 7 is arranged between the first sealing ring 43 and the first adjusting hole 44.

[0035] The adjusting ring 7 includes an adjusting cavity 71 and an adjusting ring body 72. The adjusting ring body 72 and the first regulating disc 4 form the adjusting cavity 71. The first regulating disc 4 is provided with a guiding groove 73, and the adjusting ring body 72 is matched with the guiding groove 73 through the guiding protrusions on its radial two sides.

[0036] A spring 75 is installed in the adjusting cavity 71. The spring 75 provides an axial pre-tightening force. The first regulating disc 4 is provided with one or more third adjusting holes 74, and the third adjusting holes 74 are respectively communicated with the gap between the first regulating disc 4 and the front side wall 11 and the adjusting cavity 71. The adjusting ring 7 is axially movable relative to the first regulating disc 4 under the action of the air flow pressure (that is, the axial position can be automatically adjusted by air pressure).

[0037] One side surface of the adjusting ring 7 adjacent to the front cover plate 21 is provided with a plurality of grooves 76. The grooves 76 are annular grooves or spiral grooves, and the plurality of grooves 76 are distributed radially.

[0038] Through the design of the adjusting ring 7, the adjusting ring 7 is axially movable relative to the first regulating disc 4 under the action of the air flow pressure (that is, the axial position can be automatically adjusted by air pressure). One side surface of the adjusting ring 7 adjacent to the front cover plate 21 is provided with a plurality of grooves 76, which can more efficiently adjust the pressure distribution on both sides of the impeller 2, balance the axial force, prevent the axial movement of the rotor, and thus improve the operation stability and service life of the fan.

[0039] A dust removal and purification device for a mushroom production room according to the present invention, through the design of the first regulating disc 4 and the second regulating disc 5 of the fan, the first regulating disc 4 can be axially moved and rotated under the action of the air flow, and the second regulating disc 5 can be axially moved and rotated under the action of the air flow (that is, the axial position can be automatically adjusted by the air flow pressure), which can effectively adjust the pressure distribution on both sides of the impeller 2, balance the axial force, prevent the axial movement of the rotor, and thus improve the operation stability and service life of the fan.

[0040] Through the design of the adjusting ring 7 of the fan in the present invention, the adjusting ring 7 can axially move relative to the first adjusting disc 4 under the pressure of the air flow (i.e., the axial position can be automatically adjusted by air pressure). A plurality of grooves 76 are provided on one side surface of the adjusting ring 7 adjacent to the front cover plate 21, which can more efficiently adjust the pressure distribution on both sides of the impeller 2, balance the axial force, prevent the axial displacement of the rotor, and thus improve the operation stability and service life of the fan.

[0041] The above embodiments are illustrative of the present invention and not restrictive thereof. It will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal and purification device for a mushroom production room, comprising a first fan (10), a cyclone separator (20), a filter purifier (30), and a second fan (40), wherein the first fan is connected to the cyclone separator, the filter purifier, and the second fan in sequence through a pipeline; the first fan or the second fan comprises a housing (1), an impeller (2), and a rotating shaft (3), the housing comprises a front side wall (11), a rear side wall (12), and an inlet pipe (13), the impeller comprises a front cover plate (21), a rear cover plate (22), and blades (23), and a plurality of blades are distributed along the circumferential direction and fixedly connected between the front cover plate and the rear cover plate; the characteristics are as follows: A first adjusting disk (4) is arranged between the front side wall and the front cover plate, and the first adjusting disk can move axially and rotate under the action of airflow. A second adjusting disk (5) is arranged between the rear side wall and the rear cover plate, and the second adjusting disk can move axially and rotate under the action of airflow.

2. A dust removal and purification device for mushroom production room according to claim 1, characterized in that: The first adjustment disk comprises a first disk body (41), a first outer ring (42), a first sealing ring (43), and a first adjustment hole (44). The first outer ring is arranged on the outer periphery of the first side surface of the first disk body, and the inner diameter of the first outer ring is greater than the outer diameter of the front cover plate. The first sealing ring is arranged on the radial outer side of the second side surface of the first disk body, and the first adjustment hole is opened on the radial inner side of the first disk body. The first adjustment hole is an axial through hole and is arranged adjacent to the mouth ring seal.

3. A dust removal and purification device for mushroom production room as claimed in claim 2, characterized in that: The second adjustment disk comprises a second disk body (51), a second outer ring (52), a second sealing ring (53), and a second adjustment hole (54). The second outer ring is arranged on the outer periphery of the first side surface of the second disk body. The inner diameter of the second outer ring is larger than the outer diameter of the rear cover plate. The second sealing ring is arranged on the radial outer side of the second side surface of the second disk body. The second adjustment hole is opened on the radial inner side of the second disk body. The second adjustment hole is an axial through hole and is arranged adjacent to the rotating shaft.

4. A dust removal and purification device for mushroom production room as claimed in claim 3, characterized in that: The inner circumference and side surfaces of the radial inner end of the first adjustment disk and the corresponding mating surfaces form a support and thrust effect of an air bearing, and the inner circumference and side surfaces of the radial inner end of the second adjustment disk and the corresponding mating surfaces form a support and thrust effect of an air bearing.

5. A dust removal and purification device for mushroom production room as claimed in claim 4, characterized in that: The free end of the first outer ring is provided with a first inclined surface, which is roughly aligned with the corresponding inclined portion of the annular flow channel of the shell. The free end of the second outer ring is provided with a second inclined surface, which is roughly aligned with the corresponding inclined portion of the annular flow channel of the shell.

6. A dust removal and purification device for mushroom production room as claimed in claim 5, characterized in that: An annular cavity (14) and a first connecting hole (15) are provided on the rear side wall of the shell, the first connecting hole is directly connected to the annular cavity, and a second connecting hole (16) is provided on the front side wall, the first connecting hole is connected to the second connecting hole through a pressure regulating pipeline (6), and a control regulating valve (61) is provided on the pressure regulating pipeline.

7. A dust removal and purification device for mushroom production room as claimed in claim 6, characterized in that: It also includes an adjustment ring (7), which is mounted on the first adjustment disk (4) and can move axially relative to the first adjustment disk. The adjustment ring is arranged between the first sealing ring and the first adjustment hole.

8. A dust removal and purification device for mushroom production room as claimed in claim 7, characterized in that: The adjusting ring comprises an adjusting cavity (71) and an adjusting ring body (72). The adjusting cavity is formed between the adjusting ring body and the first adjusting disk. The first adjusting disk is provided with a guide groove (73). The adjusting ring body cooperates with the guide groove through guide protrusions on both radial sides thereof.

9. A dust removal and purification device for mushroom production room as claimed in claim 8, characterized in that: A spring (75) is installed in the adjustment cavity, and the spring provides an axial preload. One or more third adjustment holes (74) are opened on the first adjustment disk, and the third adjustment holes are respectively connected to the gap between the first adjustment disk and the front side wall and the adjustment cavity. The adjustment ring can move axially relative to the first adjustment disk under the pressure of the airflow.

10. A dust removal and purification device for mushroom production room as claimed in claim 9, characterized in that: A side surface of the adjustment ring adjacent to the front cover plate is provided with a plurality of grooves (76), the grooves being annular grooves or spiral grooves, and the plurality of grooves are distributed in the radial direction.

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