A dust removal and purification device for mushroom production areas

Abstract

This invention discloses a dust removal and purification device for mushroom production, comprising a first fan, a cyclone separator, a filter purifier, and a second fan. The first fan is connected sequentially to the cyclone separator, the filter purifier, and the second fan via pipes. Each fan includes a casing, an impeller, and a shaft. The casing includes a front side wall and a rear side wall, and the impeller includes a front cover plate, a rear cover plate, and blades. The invention is characterized by a first adjusting disc disposed between the front side wall and the front cover plate, which can move and rotate axially under the action of airflow. A second adjusting disc is disposed between the rear side wall and the rear cover plate, which can also move and rotate axially under the action of airflow. This invention can effectively adjust the pressure distribution on both sides of the impeller, balance the axial force, and prevent axial movement of the rotor, thereby improving the operational stability and service life of the fan.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mushroom production equipment / technology, in particular to a dust removal and purification device for a mushroom production room. BACKGROUND

[0002] The existing dust removal and purification device for a mushroom production room comprises a first fan, a cyclone separator, a filter purifier, and a second fan, and the first fan is connected with the cyclone separator, the filter purifier, and the second fan in sequence through a pipeline; the first fan or the second fan comprises a shell, an impeller, and a rotating shaft, the shell comprises a front sidewall, a rear sidewall, and an inlet pipe, the impeller comprises a front cover plate, a rear cover plate, and blades, and the blades are distributed in a circumferential direction and fixedly connected between the front cover plate and the rear cover plate; the axial force can be balanced through various ways (such as a balance disc, a balance drum, a balance hole, a pressure regulating pipeline, etc.). However, the existing dust removal and purification fan still has problems of uneven pressure distribution on both sides of the impeller, poor effect of balancing the axial force, and further improvement of the running stability and service life. SUMMARY

[0003] The present application aims to overcome the problems in the prior art and provide a dust removal and purification device for a mushroom production room, which can effectively adjust the pressure distribution on both sides of the impeller, balance the axial force, prevent axial movement of the rotor, and thus improve the running stability and service life of the fan through the design of the first adjusting disc, the second adjusting disc, and the adjusting ring of the fan.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] A dust removal and purification device for a mushroom production room comprises a first fan, a cyclone separator, a filter purifier, and a second fan, and the first fan is connected with the cyclone separator, the filter purifier, and the second fan in sequence through a pipeline; the first fan or the second fan comprises a shell, an impeller, and a rotating shaft, the shell comprises a front sidewall, a rear sidewall, and an inlet pipe, the impeller comprises a front cover plate, a rear cover plate, and blades, and the blades are distributed in a circumferential direction and fixedly connected between the front cover plate and the rear cover plate; characterized in that: a first adjusting disc is arranged between the front sidewall and the front cover plate, the first adjusting disc can move and / or rotate axially under the action of airflow, and a second adjusting disc is arranged between the rear sidewall and the rear cover plate, the second adjusting disc can move and / or rotate axially under the action of airflow.

[0006] Further, the first adjusting disc comprises a first disc body, a first outer ring, a first sealing ring, and a first adjusting hole, the outer periphery of the first side surface of the first disc body is provided with the first outer ring, the inner diameter of the first outer ring is greater than the outer diameter of the front cover plate, the radially outer side of the second side surface of the first disc body is provided with the first sealing ring, and the radially inner side of the first disc body is provided with the first adjusting hole, which is an axial through hole and is arranged adjacent to the sealing position of the port ring.

[0007] Further, the second adjusting disc comprises a second disc body, a second outer ring, a second sealing ring, and a second adjusting hole, the outer periphery of the first side of the second disc body is provided with the second outer ring, the inner diameter of the second outer ring is greater than the outer diameter of the rear cover plate, the radially outer side of the second side of the second disc body is provided with the second sealing ring, and the radially inner side of the second disc body is provided with the second adjusting hole, which is an axial through hole and is arranged adjacent to the rotating shaft.

[0008] Further, the inner circumferential surface of the radially inner end of the first adjusting disc, the side surface, and the corresponding matching surface form the supporting and thrust effect of the air bearing, and the inner circumferential surface of the radially inner end of the second adjusting disc, the side surface, and the corresponding matching surface form the supporting and thrust effect of the air bearing.

[0009] Further, the free end of the first outer ring is provided with a first inclined surface, which is arranged in alignment with the corresponding inclined part of the annular flow channel of the shell, and the free end of the second outer ring is provided with a second inclined surface, which is arranged in alignment with the corresponding inclined part of the annular flow channel of the shell.

[0010] Further, the rear side wall of the shell is provided with an annular recess and a first communication hole, the first communication hole is directly connected with the annular recess, the front side wall is provided with a second communication hole, the first communication hole is connected with the second communication hole through a pressure regulating pipeline, and a control regulating valve is arranged on the pressure regulating pipeline.

[0011] Further, the adjusting ring is installed on the first adjusting disc and can move axially relative to the first adjusting disc, and the adjusting ring is arranged between the first sealing ring and the first adjusting hole.

[0012] Further, the adjusting ring comprises an adjusting cavity and an adjusting ring body, the adjusting cavity is formed between the adjusting ring body and the first adjusting disc, a guide groove is arranged on the first adjusting disc, and the adjusting ring body is matched with the guide groove through the guide protrusions on the two radial sides thereof.

[0013] Further, a spring is installed in the adjusting cavity to provide an axial pre-tightening force, one or more third adjusting holes are arranged on the first adjusting disc, the third adjusting holes are respectively connected with the gap between the first adjusting disc and the front side wall and the adjusting cavity, and the adjusting ring can move axially relative to the first adjusting disc under the pressure of the airflow.

[0014] Further, one side of the adjusting ring adjacent to the front cover plate is provided with a plurality of grooves, the grooves are annular grooves or helical grooves, and the plurality of grooves are distributed in the radial direction.

[0015] The application is a dust removal and purification device for mushroom production room, which can effectively adjust the pressure distribution of both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and improve the operation stability and service life of the fan by the design of the first adjusting disc and the second adjusting disc of the fan.

[0016] The application can more efficiently adjust the pressure distribution of both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and improve the operation stability and service life of the fan by the design of the adjusting ring of the fan, which can move axially relative to the first adjusting disc under the pressure of the airflow (i.e. the axial position can be automatically adjusted by air pressure), and the side adjacent to the front cover plate of the adjusting ring is provided with a plurality of grooves. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The application is a dust removal and purification device for mushroom production room, which can effectively adjust the pressure distribution of both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and improve the operation stability and service life of the fan by the design of the first adjusting disc and the second adjusting disc of the fan.

[0018] Figure 2 The application is a dust removal and purification device for mushroom production room, which can effectively adjust the pressure distribution of both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and improve the operation stability and service life of the fan by the design of the first adjusting disc and the second adjusting disc of the fan.

[0019] Figure 3 The application is a dust removal and purification device for mushroom production room, which can effectively adjust the pressure distribution of both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and improve the operation stability and service life of the fan by the design of the first adjusting disc and the second adjusting disc of the fan.

[0020] Figure 4 The application is a dust removal and purification device for mushroom production room, which can effectively adjust the pressure distribution of both sides of the impeller, balance the axial force, prevent the axial movement of the rotor, and improve the operation stability and service life of the fan by the design of the first adjusting disc and the second adjusting disc of the fan.

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

[0022] To make the technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of the present invention, and are only used to explain the present invention, not to limit the present invention. It should be noted that, for ease of description, only the parts / structures related to the present invention are shown in the accompanying drawings. Other related parts can be referred to with ordinary design. In the absence of conflict, the embodiments and technical features in the embodiments of the present invention can be combined with each other to obtain new embodiments.

[0023] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Furthermore, unless otherwise defined, the technical or scientific terms used in the description of this invention should have the ordinary meaning understood by those skilled in the art.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

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

[0026] The first fan 10 and / or the second fan 40 include a housing 1, an impeller 2, and a rotating shaft 3. The impeller 2 is rotatably mounted inside the housing 1 and on the rotating shaft 3. The rotating shaft 3 is connected to a motor for transmission. The housing 1 includes a front sidewall 11, a rear sidewall 12, and an inlet pipe 13. The impeller 2 includes a front cover plate 21, a rear cover plate 22, and blades 23. Multiple blades 23 are distributed circumferentially and fixedly connected between the front cover plate 21 and the rear cover plate 22. The first adjusting plate 4 is provided between the front sidewall 11 and the front cover plate 21. The first adjusting plate 4 can move axially and rotate under the action of airflow. The second adjusting plate 5 is provided between the rear sidewall 12 and the rear cover plate 22. The second adjusting plate 5 can move axially and rotate under the action of airflow.

[0027] Further, the first adjusting disc 4 comprises a first disc body 41, a first outer ring 42, a first sealing ring 43, and a first adjusting hole 44, the outer periphery of the first side of the first disc body 41 is provided with the first outer ring 42, the inner diameter of the first outer ring 42 is greater than the outer diameter of the front cover plate 21, the radially outer side of the second side 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 adjusting hole 44, which is an axial through hole and is arranged adjacent to the port ring seal.

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

[0029] The inner circumferential surface of the radially inner end of the first adjusting disc 4, the side surface and the corresponding matching surface form the supporting and thrust effect of the air bearing, and the inner circumferential surface of the radially inner end of the second adjusting disc 5, the side surface and the corresponding matching surface form the supporting and thrust effect of the air bearing.

[0030] The free end of the first outer ring 42 is provided with a first inclined surface, which is arranged in alignment with the corresponding inclined part of the annular flow channel of the shell 1, and the free end of the second outer ring 52 is provided with a second inclined surface, which is arranged in alignment with the corresponding inclined part of the annular flow channel of the shell 1.

[0031] The first adjusting disc 4 can be axially moved and rotated under the action of the airflow, and the second adjusting disc 5 can be axially moved and rotated under the action of the airflow (that is, the axial position can be automatically adjusted by the airflow 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.

[0032] In an embodiment, the rear side wall 12 of the shell 1 is provided with an annular recess 14 and a first communication hole 15, the first communication hole 15 is directly connected with the annular recess 14, the front side wall 11 is provided with a second communication hole 16, the first communication hole 15 is connected with the second communication hole 16 through a pressure regulating pipeline 6, and the pressure regulating pipeline 6 is provided with a control adjusting valve 61.

[0033] The application can guide the high-pressure fluid between the second adjusting disc 5 and the rear side wall 12 to the gap between the first adjusting disc 4 and the front side wall 11 through the design of the pressure regulating pipeline 6, can 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 an embodiment, an adjusting ring 7 is further included, the adjusting ring 7 is installed on the first adjusting disc 4 and can move axially relative to the first adjusting disc 4, and 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 cavity 71 is formed between the adjusting ring body 72 and the first adjusting disc 4, a guide groove 73 is formed on the first adjusting disc 4, and the adjusting ring body 72 is matched with the guide groove 73 through guide protrusions on both radial sides of the adjusting ring body 72.

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

[0037] A 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 along the radial direction.

[0038] The adjusting ring 7 can move axially relative to the first adjusting disc 4 under the pressure of the airflow (that is, the axial position can be automatically adjusted by the air pressure) through the design of the adjusting ring 7, a side surface of the adjusting ring 7 adjacent to the front cover plate 21 is provided with a plurality of grooves 76, the pressure distribution on both sides of the impeller 2 can be more efficiently adjusted, the axial force can be balanced, the axial movement of the rotor can be prevented, and thus the operation stability and service life of the fan are improved.

[0039] The application discloses a dust removal and purification device for a mushroom production room, the first adjusting disc 4 and the second adjusting disc 5 of the fan are designed, the first adjusting disc 4 can move axially and rotate under the action of the airflow, the second adjusting disc 5 can move axially and rotate under the action of the airflow (that is, the axial position can be automatically adjusted by the airflow pressure), the pressure distribution on both sides of the impeller 2 can be effectively adjusted, the axial force can be balanced, the axial movement of the rotor can be prevented, and thus the operation stability and service life of the fan are improved.

[0040] The application can more efficiently adjust the pressure distribution of both sides of the impeller 2, balance the axial force, prevent the axial movement of the rotor, and improve the operation stability and service life of the fan by the design of the adjusting ring 7 of the fan, the axial movement of the adjusting ring 7 relative to the first adjusting disc 4 under the pressure of the airflow (that is, the axial position can be automatically adjusted by air pressure), and the side of the adjusting ring 7 adjacent to the front cover plate 21 being provided with a plurality of grooves 76.

[0041] The above embodiments are illustrative of the application and are not limiting of the application. It is understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A dust removal and purification device for mushroom production room, comprising a first fan (10), a cyclone separator (20), a filter purifier (30), a second fan (40), the first fan being connected with the cyclone separator, the filter purifier and the second fan in sequence through pipes; the first fan or the second fan comprising a shell (1), an impeller (2) and a rotating shaft (3), the shell comprising a front side wall (11), a back side wall (12) and an inlet pipe (13), the impeller comprising a front cover plate (21), a back cover plate (22) and blades (23), a plurality of blades being distributed in a circumferential direction and fixedly connected between the front cover plate and the back cover plate; characterized in that: A first adjusting disc (4) is arranged between the front side wall and the front cover plate, and can move axially and rotate under the action of airflow; a second adjusting disc (5) is arranged between the rear side wall and the rear cover plate, and can move axially and rotate under the action of airflow; The first adjusting disc comprises a first disc body (41), a first outer ring (42), a first sealing ring (43) and a first adjusting hole (44), the outer periphery of the first side surface of the first disc body is provided with the first outer ring, the inner diameter of the first outer ring is greater than the outer diameter of the front cover plate, the radial outer side of the second side surface of the first disc body is provided with the first sealing ring, and the radial inner side of the first disc body is provided with the first adjusting hole which is an axial through hole and is arranged adjacent to the sealing portion of the port ring; The adjusting ring (7) is installed on the first adjusting disc (4) and can move axially relative to the first adjusting disc, and is arranged between the first sealing ring and the first adjusting hole; 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 disc, the first adjusting disc is provided with a guide groove (73), and the adjusting ring body is matched with the guide groove through guide protrusions on the two radial sides thereof; The adjusting cavity is provided with a spring (75) which provides an axial pre-tightening force, the first adjusting disc is provided with one or more third adjusting holes (74) which are respectively communicated with the gap between the first adjusting disc and the front side wall and the adjusting cavity, and the adjusting ring can move axially relative to the first adjusting disc under the pressure action of airflow.

2. A dust removal and purification device for a mushroom production room according to claim 1, characterized in that, The second adjusting disc comprises a second disc body (51), a second outer ring (52), a second sealing ring (53) and a second adjusting hole (54), the outer periphery of the first side surface of the second disc body is provided with the second outer ring, the inner diameter of the second outer ring is greater than the outer diameter of the rear cover plate, the radial outer side of the second side surface of the second disc body is provided with the second sealing ring, and the radial inner side of the second disc body is provided with the second adjusting hole which is an axial through hole and is arranged adjacent to the rotating shaft.

3. A dust removal and purification device for a mushroom production room according to claim 2, characterized in that, The inner circumferential surface, the side surface of the radial inner end of the first adjusting disc and the corresponding matching surface form the supporting and thrust effect of the air bearing, and the inner circumferential surface, the side surface of the radial inner end of the second adjusting disc and the corresponding matching surface form the supporting and thrust effect of the air bearing.

4. A dust removal and purification device for a mushroom production room according to claim 3, characterized in that, The free end of the first outer ring is provided with a first inclined surface which is arranged in alignment with the corresponding inclined portion of the annular flow channel of the shell, and the free end of the second outer ring is provided with a second inclined surface which is arranged in alignment with the corresponding inclined portion of the annular flow channel of the shell.

5. A dust removal and purification device for a mushroom production room according to claim 4, characterized in that, The rear side wall of the shell is provided with an annular recess (14) and a first communication hole (15), the first communication hole is directly connected with the annular recess, the front side wall is provided with a second communication hole (16), the first communication hole is connected with the second communication hole through a pressure regulating pipeline (6), and the pressure regulating pipeline is provided with a control adjusting valve (61).

6. A dust removal and purification device for a mushroom production room according to claim 5, characterized in that, The side surface of the adjusting ring adjacent to the front cover plate is provided with a plurality of grooves (76) which are annular grooves or helical grooves and are distributed in the radial direction.

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