A supply device for a mushroom production workshop
By improving the impeller structure of the supply pump in the mushroom production workshop and adding arc-shaped guide parts and guide vanes, the vortex problem at the impeller inlet was solved, the efficiency of the supply pump was improved, and the stable supply of nutrient solution and clean water was ensured.
Patent Information
- Application Number
- CN202411158432.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2044-08-22
AI Technical Summary
In the existing supply device of mushroom production workshop, the vortex at the impeller inlet of the supply pump has a greater impact, the inlet flow is reduced, the flow loss of the pump is large, and the anti-cavitation performance is reduced.
By improving the centrifugal impeller design of the supply pump, adding arc-shaped guide parts and guide vanes, optimizing the blade structure, improving the diversion effect at the impeller inlet, reducing vortexes, and increasing the inlet flow.
Reduce the flow loss of the supply pump, improve the anti-cavitation performance, and ensure the stable and efficient supply of nutrient solution, treatment fluid and clean water.
Smart Images
Figure CN119042157B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mushroom and fungus production and manufacturing equipment, and in particular to a supply device used in a mushroom production workshop. Background Art
[0002] Existing supply devices for mushroom production workshops include one or more supply pumps, supply pipelines, multiple control valves, pressure gauges, and flow meters. The multiple supply pumps are connected by supply pipelines equipped with control valves, pressure gauges, and flow meters. The supply pumps are used to supply nutrient solution, treatment solution, and / or clean water. The supply pumps include a centrifugal impeller and a volute. The centrifugal impeller is rotatably mounted within the volute. The impeller includes a lower cover plate, an upper cover plate, and blades. Multiple blades are circumferentially distributed and connected between the upper and lower cover plates. A hub is provided radially inwardly of the lower cover plate, and an inlet ring is provided radially inwardly of the upper cover plate. The hub is mounted on a rotating shaft connected to a motor. However, existing supply pumps still suffer from significant vortex effects at the impeller inlet, which reduces inlet flow, resulting in significant pump flow losses and reduced cavitation resistance. Summary of the Invention
[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a supply device for a mushroom production workshop. Through the improved design of the centrifugal impeller of the supply pump, the device can improve the diversion effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate, thereby reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump, thereby ensuring the stable and efficient supply of nutrient solution, treatment liquid and / or clean water.
[0004] In order to achieve the above object, the technical solution adopted by the present invention is:
[0005] A supply device for a mushroom production workshop comprises one or more supply pumps, a supply pipeline, a plurality of control regulating valves, a pressure gauge, and a flow meter. The plurality of supply pumps are connected via the supply pipeline. The supply pipeline is equipped with a control regulating valve, a pressure gauge, and a flow meter. The supply pump is used to supply nutrient solution, treatment solution, and / or clean water. The supply pump comprises a centrifugal impeller and a volute. The centrifugal impeller is rotatably mounted in the volute. The impeller (20) comprises a lower cover plate (21), an upper cover plate (22), and blades (23). The plurality of blades are distributed circumferentially and connected between the upper cover plate and the lower cover plate. The lower cover plate A hub (24) is provided on the radial inner side of the upper cover plate, an inlet ring is provided on the radial inner side of the upper cover plate, the hub is mounted on a rotating shaft (25), and the rotating shaft is connected to the motor; the blade comprises a first blade portion (211) and a second blade portion (212), and the first blade portion is provided upstream of the second blade portion; the characteristic is that the first blade portion comprises a main body portion (215) and an arc-shaped guide portion (216), and the arc-shaped guide portion is provided upstream of the main body portion; in the axial direction, the upstream end of the first blade portion protrudes from the upper end surface of the inlet ring and the upper end surface of the hub, and the upstream end of the first blade portion is provided with the arc-shaped guide portion.
[0006] Furthermore, the cross section of the arc-shaped guide portion (216) is circular, the arc-shaped guide portion is connected to the main body portion (215) via an arc-shaped transition portion (217), and the arc-shaped transition portion is only provided on the pressure surface of the first blade portion (211); the upstream end line of the arc-shaped guide portion is perpendicular to the rotation axis (XX) of the impeller (20).
[0007] Furthermore, the radius R of the arc-shaped guide portion (216) gradually increases from the radial inner side to the radial outer side.
[0008] Furthermore, the blade thickness H of the main body portion (215) gradually increases from the radial inner side to the radial outer side.
[0009] Furthermore, the connection between the blade (23) and the hub (24) has a first arc-shaped portion (213), the connection between the blade and the upper cover plate (22) has a second arc-shaped portion (214), and a dividing line L is provided between the first blade portion (211) and the second blade portion (212), one end of the dividing line L passes through the upstream endpoint of the first arc-shaped portion, and the other end passes through the upstream endpoint of the second arc-shaped portion, and the angle between the dividing line L and the rotation axis (XX) is 50-70°.
[0010] Furthermore, a groove (26) is provided at the upper end of the wheel hub (24), a nut (27) is installed in the groove, the nut is threadedly connected to the shaft end of the rotating shaft (25), and the nut is completely sunk into the groove, and a cylindrical portion (28) is provided on the outer periphery of the groove.
[0011] Furthermore, the upper end surface of the cylindrical portion (28) is provided with a guide vane (29), a plurality of guide vanes are evenly distributed along the circumference, the number of the guide vanes is greater than the number of the blades (23), and the number of the guide vanes is 2-8 times the number of the blades, and the guide vanes are inclined relative to the radial line passing through the axis.
[0012] Furthermore, the cross-section of the guide plate (29) is roughly a right triangle, and the first right-angled side of the right triangle is parallel to the rotation axis (XX) and is arranged adjacent to the groove (26), and the second right-angled side is in contact with the upper end surface of the cylinder (28), that is, the axial height of the guide plate gradually decreases from the radial inside to the radial outside.
[0013] Furthermore, the upper end surface of the guide plate (29) is flush with the upper end surface of the arc-shaped guide portion (216), the inner diameter of the guide plate is equal to the diameter of the groove (26), and the outer diameter of the guide plate is equal to the inner diameter of the first blade portion (211) or the arc-shaped guide portion (216).
[0014] The present invention provides a supply device for a mushroom production workshop. Through an improved design of a centrifugal impeller of a supply pump, a first blade portion includes a main body portion and an arc-shaped guide portion, and the arc-shaped guide portion is arranged upstream of the main body portion; in the axial direction, the upstream end of the first blade portion protrudes from the upper end surface of the inlet ring and the upper end surface of the hub, and the upstream end of the first blade portion is provided with the arc-shaped guide portion, which can improve the guide effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate, thereby reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump, thereby ensuring the stable and efficient supply of nutrient solution, treatment liquid and / or clean water.
[0015] Through the design of the first blade portion (the radius R of the arc-shaped guide portion and the blade thickness H of the main body) and the guide plate, the present invention can better improve the diversion effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate, thereby further reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump and ensuring the stable and efficient supply of nutrient solution, treatment liquid and / or clean water. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of a supply device for a mushroom production workshop according to the present invention;
[0017] Figure 2 This is a schematic diagram of the impeller structure of the supply pump of the present invention;
[0018] Figure 3 Schematic diagram of the PP cross-sectional structure of the first blade portion of the impeller of the present invention;
[0019] Figure 4 It is a schematic diagram of the guide plate structure of the present invention.
[0020] In the figure: centrifugal impeller 20, lower cover plate 21, upper cover plate 22, blades 23, hub 24, rotating shaft 25, groove 26, nut 27, cylinder 28, guide vane 29, first blade portion 211, second blade portion 212, first arc-shaped portion 213, second arc-shaped portion 214, main body 215, arc-shaped guide portion 216, arc-shaped transition portion 217, dividing line L, rotation axis XX. DETAILED DESCRIPTION
[0021] To make the technical solution and its advantages of the present invention more clear, the technical solution of the present invention will be further described in detail below in conjunction with 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, the accompanying drawings only show the parts / structures related to the present invention. Other related parts can refer to the general design. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other to obtain new embodiments.
[0022] All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention. Furthermore, unless otherwise defined, technical or scientific terms used in the description of the present invention shall have the same meanings as those generally understood by persons of ordinary skill in the art to which the present invention belongs.
[0023] The present invention will be described in further detail below with reference to the accompanying drawings.
[0024] like Figure 1-4As shown, a supply device for a mushroom production workshop includes one or more supply pumps, supply pipelines, multiple control regulating valves, pressure gauges, flow meters, etc. The multiple supply pumps are connected through the supply pipelines, and the supply pipelines are equipped with control regulating valves, pressure gauges, and flow meters. The supply pumps are used to supply nutrient solution, treatment solution and / or clean water; the supply pump includes a centrifugal impeller 20 and a volute. The centrifugal impeller 20 is rotatably installed in the volute. The impeller 20 includes a lower cover plate 21, an upper cover plate 22, and blades 23. The multiple blades 23 are distributed along the circumferential direction and connected between the upper cover plate 22 and the lower cover plate 21. A hub 24 is provided on the radial inner side of the lower cover plate 21, and the radial inner side of the upper cover plate 22 is provided. An inlet ring is provided on the inner side, and the hub 24 is mounted on the rotating shaft 25, which is connected to the motor; the blade 23 includes a first blade portion 211 and a second blade portion 212 (the blade 23 is composed of the first blade portion 211 and the second blade portion 212), and the first blade portion 211 is provided upstream of the second blade portion 212; it is characterized in that: the first blade portion 211 includes a main body portion 215 and an arc-shaped guide portion 216, and the arc-shaped guide portion 216 is provided upstream of the main body portion 215; in the axial direction, the upstream end of the first blade portion 211 protrudes from the upper end face of the inlet ring and the upper end face of the hub 24, and the upstream end of the first blade portion 211 is provided with an arc-shaped guide portion 216.
[0025] The present invention provides a supply device for a mushroom production workshop. Through an improved design of a centrifugal impeller 20 of a supply pump, a first blade portion 211 includes a main body portion 215 and an arc-shaped guide portion 216. The arc-shaped guide portion 216 is arranged upstream of the main body portion 215. In the axial direction, the upstream end of the first blade portion 211 protrudes from the upper end surface of the inlet ring and the upper end surface of the hub 24. The upstream end of the first blade portion 211 is provided with the arc-shaped guide portion 216, which can improve the diversion effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate, thereby reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump, thereby ensuring a stable and efficient supply of nutrient solution, treatment liquid and / or clean water.
[0026] like Figure 2-3 As shown, further, the cross-section of the arc-shaped guide portion 216 is circular, the arc-shaped guide portion 216 is connected to the main body portion 215 through an arc-shaped transition portion 217, and the arc-shaped transition portion 217 is only arranged on the pressure surface of the first blade portion 211; the upstream end line of the arc-shaped guide portion 216 is perpendicular to the rotation axis XX of the impeller 20.
[0027] The radius R ( R1 , R2 , R3 ) of the arc-shaped guide portion 216 gradually increases from the radial inner side to the radial outer side, that is, R1 < R2 < R3 .
[0028] The blade thickness H ( H1 , H2 , H3 ) of the main body portion 215 gradually increases from the radial inner side to the radial outer side, that is, H1 < H2 < H3 .
[0029] Through the design of the first blade portion 211 (the radius R of the arc-shaped guide portion 216 and the blade thickness H of the main body portion 215), the present invention can better improve the diversion effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate, thereby further reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump and ensuring the stable and efficient supply of nutrient solution, treatment liquid and / or clean water.
[0030] Furthermore, the connection between the blade 23 and the hub 24 has a first arc-shaped portion 213, and the connection between the blade 23 and the upper cover plate 22 has a second arc-shaped portion 214. A dividing line L is provided between the first blade portion 211 and the second blade portion 212. One end of the dividing line L passes through the upstream end point of the first arc-shaped portion 213, and the other end passes through the upstream end point of the second arc-shaped portion 214. The angle between the dividing line L and the rotation axis XX is 50-70°, preferably 60°.
[0031] A groove 26 is formed at the upper end of the hub 24. A nut 27 is mounted in the groove 26. The nut 27 is threadedly connected to the end of the shaft 25 and is completely sunken in the groove 26. The nut 27 can be round or polygonal. A cylindrical portion 28 is provided on the outer periphery of the groove 26. By completely sunk the nut 27 in the groove 26, the present invention can improve the suction effect of the impeller.
[0032] The upper end surface of the cylinder 28 is provided with a guide vane 29, and a plurality of guide vanes 29 are evenly distributed along the circumference, and the number of the guide vanes 29 is greater than the number of the blades 23. Specifically, the number of the guide vanes 29 is 2-5 times the number of the blades 23. The guide vanes 29 are inclined relative to the radial line passing through the axis (such as Figure 4 shown).
[0033] The cross-section of the guide vane 29 is roughly a right triangle, and the first right-angled side of the right triangle is parallel to the rotation axis XX and is arranged adjacent to the groove 26, and the second right-angled side is in contact with the upper end surface of the cylinder 28, that is, from the radial inside to the radial outside, the axial height of the guide vane 29 gradually decreases.
[0034] The upper end surface of the guide plate 29 is flush with the upper end surface of the arc-shaped guide portion 216 , the inner diameter of the guide plate 29 is equal to the diameter / inner diameter of the groove 26 , and the outer diameter of the guide plate 29 is equal to the inner diameter of the first blade portion 211 or the arc-shaped guide portion 216 .
[0035] The present invention can better improve the diversion effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate through the design of the guide vane 29, thereby further reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump.
[0036] The present invention provides a supply device for a mushroom production workshop. Through an improved design of a centrifugal impeller 20 of a supply pump, a first blade portion 211 includes a main body portion 215 and an arc-shaped guide portion 216. The arc-shaped guide portion 216 is arranged upstream of the main body portion 215. In the axial direction, the upstream end of the first blade portion 211 protrudes from the upper end surface of the inlet ring and the upper end surface of the hub 24. The upstream end of the first blade portion 211 is provided with the arc-shaped guide portion 216, which can improve the diversion effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate, thereby reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump, thereby ensuring a stable and efficient supply of nutrient solution, treatment liquid and / or clean water.
[0037] Through the design of the first blade portion 211 (the radius R of the arc-shaped guide portion 216 and the blade thickness H of the main body 215) and the guide plate 29, the present invention can better improve the diversion effect at the impeller inlet, reduce eddy currents, and increase the inlet flow rate, thereby further reducing the flow loss of the supply pump and improving the anti-cavitation performance of the supply pump, thereby improving the efficiency of the pump, thereby ensuring a stable and efficient supply of nutrient solution, treatment liquid and / or clean water.
[0038] The above-mentioned embodiments are illustrative of the present invention, not limiting thereof. It is understood that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A supply device for a mushroom production workshop, comprising one or more supply pumps, a supply pipeline, a plurality of control regulating valves, a pressure gauge, and a flow meter, wherein the plurality of supply pumps are connected via the supply pipeline, and the control regulating valve, the pressure gauge, and the flow meter are installed on the supply pipeline; the supply pump comprises a centrifugal impeller and a volute, wherein the centrifugal impeller is rotatably installed in the volute, the impeller (20) comprises a lower cover plate (21), an upper cover plate (22), and blades (23), wherein the plurality of blades are distributed along the circumferential direction and connected between the upper cover plate and the lower cover plate, a hub (24) is provided on the radial inner side of the lower cover plate, an inlet ring is provided on the radial inner side of the upper cover plate, the hub is installed on a rotating shaft (25), and the rotating shaft is connected to a motor; the blades comprise a first blade portion (211) and a second blade portion (212), wherein the first blade portion is provided upstream of the second blade portion; Its characteristics are: The first blade portion includes a main body portion (215) and an arc-shaped flow guide portion (216), and the arc-shaped flow guide portion is arranged upstream of the main body portion; in the axial direction, the upstream end of the first blade portion protrudes from the upper end surface of the inlet ring and the upper end surface of the hub, and the upstream end of the first blade portion is provided with the arc-shaped flow guide portion; the cross section of the arc-shaped flow guide portion is circular, and the arc-shaped flow guide portion and the main body portion are connected by an arc-shaped transition portion (217), and the arc-shaped transition portion is only provided on the pressure surface of the first blade portion; the upstream end line of the arc-shaped flow guide portion is perpendicular to the rotation axis (XX) of the impeller; From the radial inner side to the radial outer side, the radius R of the arc-shaped guide portion (216) gradually increases; and from the radial inner side to the radial outer side, the blade thickness H of the main body portion (215) gradually increases.
2. A supply device for a mushroom production workshop according to claim 1, characterized in that: The connection between the blade (23) and the hub (24) has a first arc-shaped portion (213), the connection between the blade and the upper cover plate (22) has a second arc-shaped portion (214), a dividing line L is provided between the first blade portion (211) and the second blade portion (212), one end of the dividing line L passes through the upstream end point of the first arc-shaped portion, and the other end passes through the upstream end point of the second arc-shaped portion, and the angle between the dividing line L and the rotation axis (XX) is 50-70 degrees.
3. A supply device for a mushroom production workshop according to claim 2, characterized in that: The upper end of the wheel hub (24) is provided with a groove (26), in which a nut (27) is installed. The nut is threadedly connected to the shaft end of the rotating shaft (25), and the nut is completely sunk into the groove. The outer periphery of the groove is provided with a cylindrical portion (28).
4. A supply device for a mushroom production workshop according to claim 3, characterized in that: The upper end surface of the cylinder (28) is provided with a guide plate (29), and a plurality of guide plates are evenly distributed along the circumference, and the number of the guide plates is greater than the number of blades (23), and the number of the guide plates is 2-8 times the number of blades, and the guide plates are inclined relative to the radial line passing through the axis.
5. A supply device for a mushroom production workshop according to claim 4, characterized in that: The cross section of the guide plate (29) is a right triangle, and the first right-angled side of the right triangle is parallel to the rotation axis (XX) and is arranged adjacent to the groove (26), and the second right-angled side is in contact with the upper end surface of the cylinder (28), that is, the axial height of the guide plate gradually decreases from the radial inner side to the radial outer side.
6. A supply device for a mushroom production workshop according to claim 5, characterized in that: The upper end surface of the guide plate (29) is flush with the upper end surface of the arc-shaped guide portion (216), the inner diameter of the guide plate is equal to the diameter of the groove (26), and the outer diameter of the guide plate is equal to the inner diameter of the first blade portion (211) or the arc-shaped guide portion (216).
Citation Information
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