An air conditioning system and ventilation fan for intelligent mushroom houses

Abstract

This invention discloses an air conditioning system for an intelligent mushroom house, comprising a housing (10), a mushroom rack (20), an air conditioning system (30), and a control system. The air conditioning system includes a ventilation fan (40) and a heat exchanger. The fan includes a volute (41) and an impeller (42). The volute has a rear side plate (47) and a front side plate (48). The impeller includes a front cover plate (44), a rear cover plate (45), and blades (46). The front and rear cover plates are flat, and the outer diameter of the blades is equal to that of the front and rear cover plates. The invention is characterized by having N guide rings on the outer periphery of the blades, where N ≥ 2, and the circumferential span of the guide rings is Q, where Q = 360° / N. Furthermore, the axial positions of the N guide rings are different along the impeller axis. This invention can improve the fan flow rate and ensure the stability and uniformity of the fan flow rate, thereby improving the fan efficiency and providing effective protection for constant temperature, constant humidity, and constant ventilation in the intelligent mushroom house.

Description

Technical Field

[0001] This invention relates to the field of mushroom / fungus cultivation equipment technology, specifically to an air conditioning system and ventilation fan for intelligent mushroom houses. Background Technology

[0002] Existing modular / container-style intelligent mushroom cultivation rooms include a container body, mushroom racks, an air conditioning system, and a control system. The container body is a modular / container-style three-dimensional structure, with multiple sets of mushroom racks inside for placing one or more types of mushrooms / fungi. The air conditioning system includes ventilation fans, heat exchangers, compressors, filters, atomizers, and ventilation ducts. The control system includes an intelligent / smart control platform and various sensors (such as temperature sensors, humidity sensors, and carbon dioxide / CO2 sensors). However, existing air conditioning systems still suffer from problems such as reduced or unstable / uneven fan flow, and reduced fan efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an air conditioning system and ventilation fan for intelligent mushroom houses. Through the improved design of the impeller, specifically the design of N guide rings, it can reduce turbulence and eddies at the impeller outlet and in the volute cavity, and promote the flow of the return airflow at the fourth guide ring into the return channel between the front cover plate and the front side plate, thereby improving the return effect. This can increase the fan flow rate and ensure the stability and uniformity of the fan flow rate, thereby improving the fan efficiency and providing effective protection for constant temperature, constant humidity, and constant flow / constant ventilation in intelligent mushroom houses.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] An air conditioning system for an intelligent mushroom house includes a housing (10), a mushroom rack (20), an air conditioning system (30), and a control system. The air conditioning system includes a ventilation fan (40), a heat exchanger, a compressor, a filter, an atomizing device, and ventilation ducts. The control system includes an intelligent control platform and various sensors. The fan includes a volute (41), an impeller (42), and a shaft (43). The impeller is installed inside the volute and on the shaft. The volute has a rear side plate (47) and a front side plate (48). 8) An arc-shaped inlet ring is provided at the center of the front side plate. The impeller includes a front cover plate (44), a rear cover plate (45), and blades (46). Multiple blades are distributed circumferentially and connected between the front cover plate and the rear cover plate. The front cover plate and the rear cover plate are flat. The outer diameter of the blades is equal to the outer diameter of the front cover plate and the rear cover plate. The characteristic is that N guide rings are provided on the outer periphery of the blades (46), N≥2, the circumferential span of the guide rings is Q, Q=360° / N, and the axial positions of the N guide rings are different in the axial direction of the impeller.

[0006] Furthermore, at least two of the N guide rings protrude from the outer periphery of the blade (46), that is, the outer diameter of at least two guide rings is greater than the outer diameter of the blade.

[0007] Furthermore, when N=4, Q=90°, and the N guide rings include a first guide ring (51), a second guide ring (52), a third guide ring (53), and a fourth guide ring (54) arranged sequentially along the circumferential direction. The circumferential span of each guide ring is 90°, and they do not overlap in the circumferential direction. In the axial direction, from the rear side plate (47) side to the front side plate (48) side, the first guide ring, the second guide ring, the third guide ring, and the fourth guide ring are arranged sequentially along the axial direction.

[0008] Furthermore, in the axial direction, there is an axial blade flow channel width L between the front cover plate (44) and the rear cover plate (45), a flow channel width L1 between the lower end face of the first guide ring (51) and the upper end face of the rear cover plate, a flow channel width L2 between the lower end face of the second guide ring (52) and the upper end face of the rear cover plate, a flow channel width L3 between the lower end face of the third guide ring (53) and the upper end face of the rear cover plate, and a flow channel width L4 between the lower end face of the fourth guide ring (54) and the upper end face of the rear cover plate, and L1 = (0.02-0.2)L, L2 = (0.25-0.45)L, L3 = (0.5-0.7)L, L4 = (0.75-0.95)L.

[0009] Furthermore, L1 = (0.07-0.11)L, L2 = (0.32-0.36)L, L3 = (0.58-0.62)L, and L4 = (0.82-0.86)L.

[0010] Furthermore, each guide ring has the same axial thickness T and the same radial length W; in the radial direction, there is a radial protrusion length H2 between the outer peripheral surface of the blade (46) and the outer peripheral surface of the second guide ring (52), a radial protrusion length H3 between the outer peripheral surface of the blade and the outer peripheral surface of the third guide ring (53), and a radial protrusion length H4 between the outer peripheral surface of the blade and the outer peripheral surface of the fourth guide ring (54), and T = (0.35-0.65)W, H2 = (0.35-0.65)W, H3 = (0.6-0.9)W, H4 = (0.85-1.15)W.

[0011] Furthermore, T = (0.45-0.55)W, H2 = (0.45-0.55)W, H3 = (0.7-0.8)W, and H4 = (0.95-1.05)W.

[0012] Furthermore, W = (0.05 - 0.3)L.

[0013] Furthermore, W = (0.1-0.2)L; the outer diameter of the first guide ring (51) is equal to the outer diameter of the blade (46).

[0014] Furthermore, the outer periphery of the second guide ring (52), the third guide ring (53), and the fourth guide ring (54) is provided with an arc-shaped surface (55), which is a semi-circular or semi-elliptical structure.

[0015] Furthermore, the outer periphery of the second, third, and fourth guide rings is provided with grooves (56), which extend from the arc-shaped surface to the radially inner side. The grooves are roughly in the shape of an isosceles triangle, and their two sides are arc-shaped lines.

[0016] This invention discloses an air conditioning system and ventilation fan for an intelligent mushroom house. Through an improved impeller design, specifically the design of N guide rings, it reduces turbulence and eddies at the impeller outlet and within the volute cavity, and promotes the flow of the return airflow at the fourth guide ring into the return channel between the front cover plate and the front side plate, thereby improving the return effect. This increases the fan flow rate and ensures the stability and uniformity of the fan flow rate, improving fan efficiency and providing effective protection for constant temperature, constant humidity, and constant flow / constant ventilation in the intelligent mushroom house. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a portion of the intelligent mushroom house structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the ventilation fan structure of the air conditioning system of the present invention;

[0019] Figure 3 This is a schematic diagram of the ventilation fan structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the ventilation fan structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the flow guide ring structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the groove structure of the guide ring of the present invention.

[0023] In the diagram: 10 box body, 20 mushroom rack, 30 air conditioning system, 40 ventilation fan, 41 volute, 42 impeller, 43 shaft, 44 front cover plate, 45 rear cover plate, blades, 46 rear side plate, 47 front side plate, 48 front side plate, 51 first guide ring, 52 second guide ring, 53 third guide ring, 54 fourth guide ring, 55 arc-shaped surface, 56 groove. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] like Figure 1 As shown, an air conditioning system for an intelligent mushroom house includes a housing 10, mushroom racks 20, an air conditioning system 30, and a control system. The housing 10 is a modular / container-type three-dimensional structure. Multiple mushroom racks 20 are installed inside the housing 10. The mushroom racks 20 are used to place one or more types of mushrooms / fungi. The air conditioning system 30 includes a ventilation fan 40, a heat exchanger, a compressor, a filter, a misting device, and ventilation ducts. The control system includes an intelligent / smart control platform and various sensors (such as temperature sensors, humidity sensors, carbon dioxide / CO2 sensors, etc.). The air conditioning system 30 is used to regulate and control factors such as temperature, humidity, and airflow / ventilation rate in the mushroom house.

[0028] like Figure 2-5As shown, the fan 40 includes a volute 41, an impeller 42, and a shaft 43. The impeller 42 is installed inside the volute 41 and on the shaft 43. The shaft 43 is connected to a drive motor. An outlet pipe is provided on the volute 41, which is approximately tangential to the outer periphery of the volute 41. The volute 41 has a rear side plate 47 and a front side plate 48. An arc-shaped inlet ring is provided at the center of the front side plate 48, extending into the volute 41 or the impeller 42. The impeller 42 includes a front cover plate 44, a rear cover plate 45, and blades 46. Multiple blades 46 extend along... The blade 46 is circumferentially distributed and connected between the front cover plate 44 and the rear cover plate 45. The front cover plate 44 and the rear cover plate 45 are flat. The outer diameter of the blade 46 is equal to that of the front cover plate 44 and the rear cover plate 45. The blade 46 is characterized by having N guide rings on its outer circumferential side, where N ≥ 2. The circumferential span / circumferential extension angle of the guide ring is Q, where Q = 360° / N. That is, when N = 3, Q = 120°, and when N = 4, Q = 90°. The axial positions of the N guide rings are different along the axial direction of the impeller 42 (along the impeller axis).

[0029] Furthermore, at least two of the N guide rings protrude from the outer periphery of the blade 46, meaning that the outer diameter of at least two guide rings is greater than the outer diameter of the blade 46.

[0030] In one specific embodiment, when N=4, Q=90°, and the N guide rings include a first guide ring 51, a second guide ring 52, a third guide ring 53, and a fourth guide ring 54 arranged sequentially along the circumferential direction. The circumferential span / circumferential extension angle of each guide ring is 90°, and they do not overlap in the circumferential direction (except for the endpoints). In the axial direction, from the rear side plate 47 side to the front side plate 48 side, the first guide ring 51, the second guide ring 52, the third guide ring 53, and the fourth guide ring 54 are arranged sequentially along the axial direction.

[0031] The present invention discloses an air conditioning system and ventilation fan for an intelligent mushroom house. Through the improved design of the impeller 42, specifically the design of N guide rings, it can reduce turbulence and eddies at the outlet of the impeller 42 and in the volute cavity, and promote the flow of the return airflow at the fourth guide ring 54 into the return channel between the front cover plate 44 and the front side plate 48, thereby improving the return effect. This can increase the fan flow rate and ensure the stability and uniformity of the fan flow rate, thereby improving the fan efficiency and providing effective protection for constant temperature, constant humidity, constant flow rate / constant ventilation in the intelligent mushroom house.

[0032] like Figure 3-4As shown, further, in the axial direction, there is an axial blade flow channel width L between the front cover plate 44 and the rear cover plate 45, a flow channel width L1 between the lower end face of the first guide ring 51 and the upper end face of the rear cover plate 45, a flow channel width L2 between the lower end face of the second guide ring 52 and the upper end face of the rear cover plate 45, a flow channel width L3 between the lower end face of the third guide ring 53 and the upper end face of the rear cover plate 45, and a flow channel width L4 between the lower end face of the fourth guide ring 54 and the upper end face of the rear cover plate 45, and L1 = (0.04-0.14)L, L2 = (0.29-0.39)L, L3 = (0.55-0.65)L, L4 = (0.79-0.89)L.

[0033] Preferably, L1 = (0.07-0.11)L, L2 = (0.32-0.36)L, L3 = (0.58-0.62)L, and L4 = (0.82-0.86)L.

[0034] Each guide ring has the same axial thickness T and the same radial length W; in the radial direction, there is a radial protrusion length H2 between the outer peripheral surface of blade 46 and the outer peripheral surface of the second guide ring 52, a radial protrusion length H3 between the outer peripheral surface of blade 46 and the outer peripheral surface of the third guide ring 53, and a radial protrusion length H4 between the outer peripheral surface of blade 46 and the outer peripheral surface of the fourth guide ring 54, and T = (0.4-0.6)W, H2 = (0.4-0.6)W, H3 = (0.65-0.85)W, H4 = (0.9-1.1)W.

[0035] Preferably, T = (0.45-0.55)W, H2 = (0.45-0.55)W, H3 = (0.7-0.8)W, and H4 = (0.95-1.05)W.

[0036] Further, W = (0.05-0.3)L, preferably W = (0.1-0.2)L.

[0037] The outer diameter of the first guide ring 51 is equal to the outer diameter of the blade 46.

[0038] In one embodiment, such as Figure 2 , Figure 6 As shown, the outer periphery of the second guide ring 52, the third guide ring 53, and the fourth guide ring 54 is provided with an arc-shaped surface 55, which has a semi-circular or semi-elliptical structure.

[0039] The outer periphery of the second guide ring 52, the third guide ring 53, and the fourth guide ring 54 is provided with a groove 56. The groove 56 extends radially inward from the arc surface 55. The groove 56 is roughly in the shape of an isosceles triangle, and the two sides are arc lines.

[0040] The present invention, through the design of the arc surface 55 and the groove 56, can suppress / reduce the eddy current at the trailing edge of the guide ring, thereby better improving the fan flow rate and ensuring the stability and uniformity of the fan flow rate, and improving the fan efficiency.

[0041] The present invention discloses an air conditioning system and ventilation fan for an intelligent mushroom house. Through the improved design of the impeller 42, specifically the design of N guide rings, it can reduce turbulence and eddies at the outlet of the impeller 42 and in the volute cavity, and promote the flow of the return airflow at the fourth guide ring 54 into the return channel between the front cover plate 44 and the front side plate 48, thereby improving the return effect. This can increase the fan flow rate and ensure the stability and uniformity of the fan flow rate, thereby improving the fan efficiency and providing effective protection for constant temperature, constant humidity, constant flow rate / constant ventilation in the intelligent mushroom house.

[0042] The above embodiments are illustrative of the present invention and not intended to limit the invention. It is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air conditioning system for an intelligent mushroom house, comprising a housing (10), a mushroom rack (20), an air conditioning system (30), and a control system. The air conditioning system includes a ventilation fan (40), a heat exchanger, a compressor, a filter, an atomizing device, and ventilation ducts. The control system includes an intelligent control platform and various sensors. The fan includes a volute (41), an impeller (42), and a rotating shaft (43). The impeller is installed inside the volute and on the rotating shaft. The volute has a rear side plate (47) and a front side plate (48). An arc-shaped inlet ring is provided at the center of the front side plate. The impeller includes a front cover plate (44), a rear cover plate (45), and blades (46). Multiple blades are distributed circumferentially and connected between the front cover plate and the rear cover plate. The front cover plate and the rear cover plate are flat. The outer diameter of the blades is equal to the outer diameter of the front cover plate and the rear cover plate. The system is characterized by: N guide rings are provided on the outer periphery of the blade (46), N≥2, the circumferential span of the guide rings is Q, Q=360° / N, and the axial positions of the N guide rings are different in the axial direction of the impeller; at least two of the N guide rings protrude from the outer periphery of the blade (46), that is, the outer diameter of at least two guide rings is greater than the outer diameter of the blade; when N=4, Q=90°, the N guide rings include the first guide ring (51), the second guide ring (52), the third guide ring (53), and the fourth guide ring (54) arranged in sequence along the circumferential direction, the circumferential span of each guide ring is 90°, and there is no overlap between them in the circumferential direction; in the axial direction, from the rear side plate (47) side to the front side plate (48) side, the first guide ring, the second guide ring, the third guide ring, the fourth guide ring, the fourth guide ring, the fifth guide ring, the sixth guide ring, the seventh guide ring, the fifth guide ring, the sixth guide ring, the seventh guide ring, the fifth guide ring, the sixth guide ring, the seventh guide ring, the eighth guide ring, the ninth guide ring, the tenth ... The flow ring, the third guide ring, and the fourth guide ring are arranged sequentially along the axial direction. In the axial direction, there is an axial blade flow channel width L between the front cover plate (44) and the rear cover plate (45), a flow channel width L1 between the lower end face of the first guide ring (51) and the upper end face of the rear cover plate, a flow channel width L2 between the lower end face of the second guide ring (52) and the upper end face of the rear cover plate, a flow channel width L3 between the lower end face of the third guide ring (53) and the upper end face of the rear cover plate, and a flow channel width L4 between the lower end face of the fourth guide ring (54) and the upper end face of the rear cover plate, and L1 = (0.02-0.2)L, L2 = (0.25-0.45)L, L3 = (0.5-0.7)L, L4 = (0.75-0.95)L.

2. The air conditioning system for an intelligent mushroom house as described in claim 1, characterized in that, L1=(0.07-0.11)L, L2=(0.32-0.36)L, L3=(0.58-0.62)L, L4=(0.82-0.86)L.

3. The air conditioning system for an intelligent mushroom house as described in claim 1, characterized in that, Each guide ring has the same axial thickness T and the same radial length W; in the radial direction, there is a radial protrusion length H2 between the outer peripheral surface of the blade (46) and the outer peripheral surface of the second guide ring (52), a radial protrusion length H3 between the outer peripheral surface of the blade and the outer peripheral surface of the third guide ring (53), and a radial protrusion length H4 between the outer peripheral surface of the blade and the outer peripheral surface of the fourth guide ring (54), and T = (0.35-0.65)W, H2 = (0.35-0.65)W, H3 = (0.6-0.9)W, H4 = (0.85-1.15)W.

4. An air conditioning system for an intelligent mushroom house as described in claim 3, characterized in that, T=(0.45-0.55)W, H2=(0.45-0.55)W, H3=(0.7-0.8)W, H4=(0.95-1.05)W.

5. An air conditioning system for an intelligent mushroom house as described in claim 3, characterized in that, W = (0.05 - 0.3)L.

6. An air conditioning system for an intelligent mushroom house as described in claim 5, characterized in that, W = (0.1-0.2)L; the outer diameter of the first guide ring (51) is equal to the outer diameter of the blade (46).

7. An air conditioning system for an intelligent mushroom house as described in claim 3, characterized in that, The outer periphery of the second guide ring (52), the third guide ring (53), and the fourth guide ring (54) is provided with an arc-shaped surface (55), which is a semi-circular or semi-elliptical structure; the outer periphery of the second guide ring, the third guide ring, and the fourth guide ring is provided with a groove (56), which extends radially inward from the arc-shaped surface, and the groove is roughly an isosceles triangle structure with its two sides being arc lines.

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