Novel pump impeller special for cooling tower
Through the adjustable blade design and anti-detachment components of the new cooling tower special pump impeller, the problem of the pump impeller needs to be disassembled and replaced with different angles is solved, and the flexible adjustment of flow and head is achieved, which simplifies operation and reduces space and economic investment.
Patent Information
- Application Number
- CN202421079742.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-17
AI Technical Summary
When the pump impeller needs to change the flow rate or head, the device needs to be disassembled and replaced with different angles, which is time-consuming and laborious and takes up space to increase economic investment.
A new type of special pump impeller for cooling towers is designed, with a blade adjustable design and anti-detachment assembly, allowing the installation angle of the blade to be adjusted without removing the impeller, and the flow and head adjustment is achieved.
It realizes flexible adjustment of blade angle, avoids the steps of impeller removal and replacement, simplifies operation, and reduces space and economic investment.
Smart Images
Figure CN222334080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water pumps, in particular to a novel special pump impeller for a cooling tower. Background Art
[0002] The impeller of a pump is usually called a runner or working wheel. It is a component that converts energy. It can be divided into three structures: closed impeller, semi-open impeller and open impeller. The closed impeller consists of blades and front and rear cover plates.
[0003] The flow rate, head and efficiency of the pump will be different at different impeller angles. If the flow rate or head of some pump impellers needs to be changed, the device needs to be disassembled and replaced with impellers of different angles. This operation is time-consuming and labor-intensive, and different impellers need to be prepared, which takes up space and increases economic investment.
[0004] Therefore, a new type of special pump impeller for cooling tower is proposed. Utility Model Content
[0005] The utility model aims to provide a novel cooling tower pump impeller to solve the problem in the background technology that the pump impeller needs to be disassembled to replace the impeller with different angles when the flow rate or lift needs to be changed.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel pump impeller specially used for cooling towers, comprising a first shell and a second shell, a blade is arranged between the first shell and the second shell, a rotating shaft is rotatably arranged at one end of the blade, the rotating shaft is fixedly arranged on one side of the second shell, a sliding rod is fixedly arranged on one side of the first shell, the sliding rod is slidably arranged inside the blade, a connecting shaft is arranged on one side of the second shell, the first shell and the connecting shaft are rotatably arranged, a limiting block and an anti-slip assembly are arranged on the outside of the connecting shaft, the limiting block is arranged inside the first shell, the anti-slip assembly comprises a protrusion, a locking ring and a retaining spring, the protrusions are arranged in several groups and fixedly arranged on the outside of the connecting shaft, a first slot is arranged at one end of the protrusion, the size of the first slot is matched with the second slot, the second slot is arranged inside the locking ring, and the retaining spring is arranged inside the second slot and the first slot.
[0007] Preferably, the rotating shaft is arranged in several groups, the size of the rotating shaft is adapted to the rotating hole, the rotating shaft is rotatably arranged inside the rotating hole, the rotating hole is arranged inside one end of the blade, and the number of blades arranged corresponds to the rotating shaft.
[0008] Preferably, a slide groove is provided inside the blades, and a slide rod is provided inside the slide groove. The slide rod fits with the inner wall of the slide groove and is slidably provided inside the slide groove.
[0009] Preferably, the limit blocks are arranged in several groups and fixed to the connecting shaft, the size of the limit blocks matches the size of the second limit slots, the limit blocks are slidably arranged with the second limit slots, and the second limit slots are arranged inside the first shell.
[0010] Preferably, a first limiting groove is provided inside the locking ring, and a portion where one end of the first limiting groove intersects with the second clamping groove is connected, and the first limiting groove and the protrusion are slidably arranged.
[0011] Preferably, the size of the retaining spring is matched with the size of the second retaining slot and the first retaining slot, and the retaining spring is in contact with the side walls of the second retaining slot and the first retaining slot.
[0012] Preferably, a threaded layer is provided on the outer side of the connecting shaft, the connecting shaft is connected to the nut by threads, a convex ring is provided at one end of the nut, the convex ring is rotatably arranged with the connecting groove, and the connecting groove is arranged inside the locking ring.
[0013] Preferably, a mounting hole is provided inside the connecting shaft, and the mounting hole is sleeved on the output shaft of the motor.
[0014] Beneficial effects of the utility model:
[0015] 1. The utility model adopts an adjustable blade design, which can rotate around the rotating shaft to adjust the installation angle between the first shell and the second shell, thereby achieving the effect of adjusting the water flow and lift.
[0016] 2. The utility model designs an anti-slip assembly. When the nut is rotated, the locking ring is tightly fitted with one side of the first shell. Under the cooperation of the limit block, the positions of the first shell and the blades are limited. The retaining ring is fixed inside the second slot through a retaining spring, thereby limiting the movement of the locking ring to avoid changes in the blade angle after adjustment. At the same time, there is no need to remove the impeller from the output end of the motor and then replace it with an impeller of a suitable angle. It is only necessary to release the limiting effect of the anti-slip assembly and then rotate the first shell to adjust the offset angle of multiple impeller groups. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 The utility model is a new cooling tower dedicated pump impeller integral three-dimensional Figure 1 ;
[0019] Figure 2 A novel cooling tower pump impeller is provided in the embodiment of the utility model. Figure 1Sectional view at AA;
[0020] Figure 3 It is a three-dimensional schematic diagram of the partial structure of a new type of cooling tower dedicated pump impeller according to an embodiment of the utility model;
[0021] Figure 4 A novel cooling tower pump impeller is provided in the embodiment of the utility model. Figure 1 Sectional view at the middle BB;
[0022] Figure 5 A novel cooling tower pump impeller is provided in the embodiment of the utility model. Figure 4 A magnified schematic diagram of the structure at C in the middle;
[0023] Figure 6 It is a three-dimensional schematic diagram of the partial structure of a new type of pump impeller dedicated to a cooling tower according to an embodiment of the utility model.
[0024] The markings in the figure are: 1. first shell; 2. second shell; 3. connecting shaft; 4. blade; 5. rotating shaft; 6. rotating hole; 7. slide groove; 8. slide rod; 9. threaded layer; 10. nut; 11. protrusion; 12. first clamping groove; 13. locking ring; 14. second clamping groove; 15. first limiting groove; 16. connecting groove; 17. protruding ring; 18. retaining spring; 19. limiting block; 20. second limiting groove; 21. mounting hole. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0027] like Figures 1 to 6As shown, a specific embodiment of the utility model provides a novel pump impeller for a cooling tower, comprising a first shell 1 and a second shell 2, a blade 4 is arranged between the first shell 1 and the second shell 2, a rotating shaft 5 is rotatably arranged at one end of the blade 4, the rotating shaft 5 is fixedly arranged on one side of the second shell 2, a sliding rod 8 is fixedly arranged on one side of the first shell 1, the sliding rod 8 is slidably arranged inside the blade 4, a connecting shaft 3 is arranged on one side of the second shell 2, the first shell 1 and the connecting shaft 3 are rotatably arranged, a limiting block 19 and an anti-slip assembly are arranged on the outside of the connecting shaft 3, the limiting block 19 is arranged inside the first shell 1, the anti-slip assembly comprises a protrusion 11, a locking ring 13 and a retaining spring 18, the protrusion 11 is arranged in several groups and fixedly arranged on the outside of the connecting shaft 3, a first card slot 12 is arranged at one end of the protrusion 11, the size of the first card slot 12 is adapted to the second card slot 14, the second card slot 14 is arranged inside the locking ring 13, and the retaining spring 18 is arranged inside the second card slot 14 and the first card slot 12.
[0028] By adopting the above technical scheme, the utility model can adjust the installation angle between the first shell 1 and the second shell 2 by rotating around the rotating shaft 5 through the adjustable setting of the blade 4, thereby achieving the effect of adjusting the water flow and head. By setting the anti-slip assembly, the nut 10 is rotated to make the locking ring 13 fit tightly with one side of the first shell 1. Under the cooperation of the limit block 19, the position of the first shell 1 and the blade 4 is limited, and the retaining spring 18 is clamped inside the second slot 14, thereby limiting the movement of the locking ring 13 to avoid changes in the blade 4 angle after the adjustment is completed. With the cooperation of the anti-slip assembly, there is no need to remove the impeller from the output end of the motor and then replace the impeller with a suitable angle. It is only necessary to rotate the first shell 1 after releasing the limiting effect of the anti-slip assembly to adjust the offset angle of multiple groups of impellers, which effectively solves the problem that when the impeller of a special pump for a part of a cooling tower needs to change the flow or head, the device needs to be disassembled and replaced with impellers of different angles.
[0029] Specifically, Figure 1 and Figure 2 As shown, the rotating shaft 5 is arranged into several groups, the size of the rotating shaft 5 is adapted to the rotating hole 6, the rotating shaft 5 is rotatably arranged inside the rotating hole 6, the rotating hole 6 is arranged inside one end of the blade 4, the number of blades 4 arranged corresponds to the rotating shaft 5, the inside of the blade 4 is provided with a slide groove 7, the inside of the slide groove 7 is provided with a slide rod 8, the slide rod 8 is fitted with the inner wall of the slide groove 7 and is slidably arranged inside the slide groove 7.
[0030] By adopting the above technical solution, the slide rod 8 will slide inside the slide groove 7 during the rotation process, and the position of the slide rod 8 inside the slide groove 7 will change, so that the blade 4 will rotate around the rotating shaft 5 to achieve the effect of angle adjustment, thereby realizing the change of the head and water flow when the impeller is working.
[0031] Specifically, Figure 3 and Figure 5 As shown, the limit blocks 19 are arranged in several groups and fixed to the connecting shaft 3 , the size of the limit blocks 19 matches the size of the second limit groove 20 , the limit blocks 19 are slidably arranged with the second limit groove 20 , and the second limit groove 20 is arranged inside the first housing 1 .
[0032] By adopting the above technical solution, the limiting block 19 is stuck in the second limiting groove 20 during the movement of the first housing 1, thereby limiting the rotation of the first housing 1.
[0033] Specifically, Figure 5 and Figure 6 As shown, a first limiting groove 15 is provided inside the locking ring 13, and the part where one end of the first limiting groove 15 intersects with the second clamping groove 14 is connected, the first limiting groove 15 is slidably arranged with the protrusion 11, the size of the retaining spring 18 is adapted to the size of the second clamping groove 14 and the first clamping groove 12, and the retaining spring 18 is in contact with the side walls of the second clamping groove 14 and the first clamping groove 12.
[0034] By adopting the above technical solution, by setting the protrusion 11 and the first limiting groove 15, the locking ring 13 is restricted from moving on the connecting shaft 3 and cannot rotate. After the locking ring 13 moves into place, the locking ring 13 and the protrusion 11 are locked under the restriction of the retaining spring 18 to achieve the effect of restricting the movement of the locking ring 13.
[0035] Specifically, Figure 5 As shown, a threaded layer 9 is provided on the outer side of the connecting shaft 3 , and the connecting shaft 3 is connected to the nut 10 by threads. A convex ring 17 is provided at one end of the nut 10 , and the convex ring 17 is rotatably arranged with a connecting groove 16 , and the connecting groove 16 is arranged inside the locking ring 13 .
[0036] By adopting the above technical solution, the convex ring 17 is rotatably set inside the locking ring 13. When the nut 10 is threadedly connected to the outside of the connecting shaft 3, the nut 10 will not loosen on the connecting shaft 3 after the locking ring 13 is restricted from moving, preventing the angle of the blade 4 from changing after the adjustment is completed.
[0037] Specifically, Figure 1 As shown, a mounting hole 21 is provided inside the connecting shaft 3, and the mounting hole 21 is sleeved on the output shaft of the motor.
[0038] By adopting the above technical solution, the mounting hole 21 is sleeved on the output shaft of the motor, so that the impeller and the motor can be conveniently installed together and the motor can provide power to drive the impeller to rotate and generate centrifugal force.
[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0040] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A novel pump impeller for a cooling tower, comprising a first housing (1) and a second housing (2), wherein a blade (4) is arranged between the first housing (1) and the second housing (2), and a rotating shaft (5) is rotatably arranged at one end of the blade (4), and the rotating shaft (5) is fixedly arranged on one side of the second housing (2), characterized in that: A slide bar (8) is fixedly arranged on one side of the first housing (1), and the slide bar (8) is slidably arranged inside the blade (4); a connecting shaft (3) is arranged on one side of the second housing (2); the first housing (1) and the connecting shaft (3) are rotatably arranged, and a limit block (19) and an anti-slip assembly are arranged on the outer side of the connecting shaft (3); The limit block (19) is arranged inside the first housing (1); the anti-drop assembly comprises a protrusion (11), a locking ring (13) and a retaining spring (18); the protrusions (11) are arranged in a plurality of groups and are fixedly arranged on the outside of the connecting shaft (3); one end of each protrusion (11) is provided with a first retaining groove (12); the size of the first retaining groove (12) is adapted to that of the second retaining groove (14); the second retaining groove (14) is arranged inside the locking ring (13); and the retaining spring (18) is arranged inside the second retaining groove (14) and the first retaining groove (12).
2. A new type of cooling tower dedicated pump impeller according to claim 1, characterized in that: The rotating shaft (5) is arranged in a plurality of groups. The size of the rotating shaft (5) is adapted to the rotating hole (6). The rotating shaft (5) is rotatably arranged inside the rotating hole (6). The rotating hole (6) is arranged inside one end of the blade (4). The number of the blades (4) arranged corresponds to the rotating shaft (5).
3. A new type of cooling tower dedicated pump impeller according to claim 1, characterized in that: The blades (4) are each provided with a slide groove (7) inside, and the slide groove (7) is each provided with a slide rod (8) inside. The slide rod (8) is fitted with the inner wall of the slide groove (7) and is slidably arranged inside the slide groove (7).
4. A new type of cooling tower dedicated pump impeller according to claim 1, characterized in that: The limit blocks (19) are arranged in a plurality of groups and are fixedly arranged on the connecting shaft (3); the size of the limit blocks (19) matches the size of the second limit slot (20); the limit blocks (19) are slidably arranged on the second limit slot (20); and the second limit slot (20) is arranged inside the first housing (1).
5. The novel cooling tower dedicated pump impeller according to claim 1 is characterized in that: A first limiting groove (15) is arranged inside the locking ring (13); one end of the first limiting groove (15) is connected to the intersection of the second clamping groove (14); and the first limiting groove (15) and the protrusion (11) are slidably arranged.
6. The novel cooling tower dedicated pump impeller according to claim 1 is characterized in that: The size of the clamping spring (18) is matched with the size of the second clamping slot (14) and the first clamping slot (12), and the clamping spring (18) is in contact with the side walls of the second clamping slot (14) and the first clamping slot (12).
7. The novel cooling tower dedicated pump impeller according to claim 1 is characterized in that: A threaded layer (9) is provided on the outer side of the connecting shaft (3), the connecting shaft (3) is connected to the nut (10) by means of threads, a convex ring (17) is provided at one end of the nut (10), the convex ring (17) is rotatably arranged with a connecting groove (16), and the connecting groove (16) is arranged inside the locking ring (13).
8. The novel cooling tower dedicated pump impeller according to claim 7 is characterized in that: The connection shaft (3) is provided with a mounting hole (21) inside, and the mounting hole (21) is sleeved on the output shaft of the motor.