Large-flow strong self-priming energy-saving pump
By introducing vacuum impeller and machine sealing chamber design into the SPP pump, the problems of insufficient self-priming height and cumbersome operation are solved, efficient self-priming and simplified operation are achieved, and the energy saving and portability of the self-priming pump are improved.
Patent Information
- Application Number
- CN202410007427.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2025-07-04
AI Technical Summary
The self-priming height of traditional SPP pumps is not enough, and the self-priming process is cumbersome, requiring additional self-priming devices and water sealing and sealing operations, resulting in inconvenience in use.
The vacuum impeller and machine sealing chamber design are adopted to achieve self-priming through the vacuum impeller extraction, the traditional water seal and check valve are abolished, and the media self-priming is performed by the synchronous rotation of the vacuum impeller and the impeller.
The self-priming height is achieved up to nine meters, no additional driving source is required, and the operation is simplified, the pump is energy-saving and portable, and the sealing problem is reduced.
Smart Images
Figure CN120251550A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of self-priming pumps, and specifically to a large-flow strong self-priming energy-saving pump. Background Art
[0002] The SPP pump refers to "Single-Stage Process Pump", that is, a single-stage process pump. The SPP pump is a common industrial pump used to handle various fluids and media, including liquids, gases, and mixtures; the SPP pump is usually a centrifugal pump, and its working principle is based on the action of centrifugal force. It is driven by a rotating impeller (or called a blade, caster), and the fluid is sucked in from the inlet of the pump by centrifugal force and pushed towards the outlet of the pump under the action of the high-speed rotating impeller. The design and structure of the SPP pump can be adjusted according to specific application requirements to adapt to different process requirements and medium characteristics.
[0003] In the actual use of the traditional SPP pump body, its self-priming function is interfered by the pump body chamber, resulting in an unsatisfactory self-priming height and not reaching the actual required height. In order to adjust the self-priming height of the pump body, it is often necessary to additionally install a self-priming device on the pump body for supplementation, which is more cumbersome to use. At the same time, in order to keep the inside sealed when the traditional SPP pump body is working, a check valve and water filling for water sealing operation are also required at the inlet before the pump body starts. The overall operation is cumbersome. In order to improve the use efficiency and simplicity of the SPP pump body, therefore, a large-flow strong self-priming energy-saving pump is proposed to solve the above problems. Summary of the Invention
[0004] Aiming at the deficiencies of the prior art, the present invention provides a large-flow strong self-priming energy-saving pump. By changing the pump cover structure, adopting the design of a vacuum chamber and a mechanical seal chamber, and using the mutual cooperation of a vacuum impeller and a secondary impeller, the disadvantages of cumbersome operation and time consumption before the start of the traditional SPP pump are solved.
[0005] To achieve the above object, the present invention provides the following technical solution: a large-flow strong self-priming energy-saving pump, including a self-priming energy-saving pump body;
[0006] The self-priming energy-saving pump body forms a pump chamber; a main shaft is arranged in the pump chamber of the self-priming energy-saving pump body, and a sleeve A and a sleeve B are sleeved outside the main shaft;
[0007] The sleeve A and the sleeve B are attached to each other and a vacuum impeller is sleeved outside them together;
[0008] A mechanical seal cover is sleeved outside the main shaft, and a groove portion is formed on one side of the mechanical seal cover;
[0009] A pump cover is also sleeved outside the main shaft. A groove portion is formed on one side of the pump cover and encloses the vacuum impeller therein; an impeller is connected to the other side of the pump cover.
[0010] A vacuum chamber is formed in the groove portion of the pump cover; the pump chamber of the self-priming energy-saving pump body is spaced by a mechanical seal cover and forms a mechanical seal chamber opposite to the vacuum chamber.
[0011] Furthermore, an impeller nut is sleeved on one end of the main shaft, and the impeller nut is used to limit the impeller outside the main shaft.
[0012] Furthermore, a motor is disposed in the self-priming energy-saving pump body. The output end of the motor is connected with a coupling, and the end of the coupling is connected with the main shaft.
[0013] Furthermore, a bearing bracket is sleeved outside the coupling, and an outer rear bearing cover is assembled on the bearing bracket.
[0014] Furthermore, a thrust ball bearing and a deep groove ball bearing are filled and fitted in the bearing bracket.
[0015] Furthermore, an inner rear bearing cover is disposed on one side of the thrust ball bearing. The inner rear bearing cover is assembled outside the main shaft and abuts against the thrust ball bearing, and the deep groove ball bearing abuts against the outer rear bearing cover.
[0016] Furthermore, a front bearing cover is sleeved outside the main shaft, and the front bearing cover abuts against one side of the inner rear bearing cover.
[0017] Furthermore, an inlet S-bend flange is communicated and provided on one side of the self-priming energy-saving pump body.
[0018] Furthermore, a pump base is disposed outside the self-priming energy-saving pump body, and the pump base is used to support and carry the self-priming energy-saving pump body.
[0019] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0020] 1. For this large-flow and strong self-priming energy-saving pump, the air at the inlet S-bend flange and in the pump chamber is pumped out by the provided vacuum impeller, and the atmospheric pressure then squeezes and fills the inlet S-bend flange and the pump chamber with the medium. The provided impeller can then do work on the medium. Because it has an independent vacuum impeller for pumping vacuum, the self-priming energy-saving pump body does not require additional drive during self-priming. Therefore, only one drive source is needed during the use of this pump, and the overall energy-saving performance is stronger.
[0021] 2. The large-flow strong self-priming energy-saving pump uses the provided vacuum impeller to extract the air at the inlet S-bend flange and inside the pump chamber, enabling it to adapt to complex environments during operation. During use, it can self-prime the medium without the need to add a separate self-priming device. In actual applications, the self-priming height of the SPP self-priming pump of this application can reach nine meters, solving the drawback of insufficient self-priming height of traditional pump bodies. At the same time, through the operation of evacuating the vacuum, the traditional water seal and the operation of adding a check valve are abandoned, making the overall use simple and highly portable. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a schematic cross-sectional structure diagram of the pump body of the self-priming energy-saving pump of the present invention;
[0023] Figure 2 is a schematic cross-sectional structure diagram of the pump body of the self-priming energy-saving pump of the present invention;
[0024] Figure 3 is a schematic front view installation structure diagram of the pump body of the self-priming energy-saving pump of the present invention;
[0025] Figure 4 is a schematic exploded structure diagram of the disassembled self-priming energy-saving pump body of the present invention.
[0026] In the figure: 1. Inlet S-bend flange; 2. Self-priming energy-saving pump body; 3. Impeller nut; 4. Impeller; 5. Pump cover; 6. Sleeve A; 7. Vacuum impeller; 8. Sleeve B; 9. Mechanical seal cover; 10. Front bearing cover; 11. Main shaft; 12. Inner rear bearing cover; 13. Thrust ball bearing; 14. Deep groove ball bearing; 15. Outer rear bearing cover; 16. Bearing bracket; 17. Coupling; 18. Motor; 19. Pump base. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0028] Please refer to Figures 1-4 , in the large-flow strong self-priming energy-saving pump in this embodiment, it includes a self-priming energy-saving pump body 2;
[0029] The self-priming energy-saving pump body 2 forms a pump chamber; a main shaft 11 is disposed inside the pump chamber of the self-priming energy-saving pump body 2, and a sleeve A 6 and a sleeve B 8 are sleeved outside the main shaft 11;
[0030] The sleeve A 6 and the sleeve B 8 are in contact with each other and a vacuum impeller 7 is sleeved outside them together;
[0031] An engine seal cover 9 is sleeved outside the main shaft 11, and a groove portion is formed on one side of the engine seal cover 9;
[0032] A pump cover 5 is also sleeved outside the main shaft 11. A groove portion is formed on one side of the pump cover 5, and the vacuum impeller 7 is surrounded therein; the other side of the pump cover 5 is connected to an impeller 4;
[0033] A vacuum chamber is formed in the groove portion of the pump cover 5; the pump chamber of the self-priming energy-saving pump body 2 is spaced apart by the engine seal cover 9 and an engine seal chamber is formed opposite to the vacuum chamber.
[0034] In this embodiment, the air at the inlet S-bend flange 1 and in the pump chamber is pumped out by the provided vacuum impeller 7, and the atmospheric pressure then squeezes and fills the medium into the inlet S-bend flange 1 and the pump chamber. The provided impeller 4 can then do work on the medium. Because it has an independent vacuum impeller 7 for vacuum pumping, the self-priming energy-saving pump body 2 does not require additional drive during self-priming. Therefore, this pump only requires one drive source during use, and the overall energy-saving performance is stronger; the air at the inlet S-bend flange 1 and in the pump chamber is pumped out by the provided vacuum impeller 7, enabling it to adapt to complex environments during operation. During use, it does not require an additional separate self-priming device to self-prime the medium. In actual applications, the self-priming height of the SPP self-priming pump of this application can reach nine meters, solving the shortcoming of insufficient self-priming height of traditional pump bodies. At the same time, through the vacuum pumping operation, the traditional water seal and the operation of adding a check valve are abandoned, and the overall use is simple and the portability is relatively high.
[0035] It should be noted that during actual use, in order to support the pump body, as shown in a preferred embodiment Figures 1-4 as shown, a pump base 19 is provided outside the self-priming energy-saving pump body 2. The pump base 19 is used to support and carry the self-priming energy-saving pump body 2. Through the provided pump base 19, the overall self-priming energy-saving pump body 2 can be carried. At the same time, considering the vibration effect of the self-priming energy-saving pump body 2 during use, the provided pump base 19 can perform shock absorption operations in the design. Preferably, rubber pads are provided at the bottom of the pump base 19 for buffer protection of the self-priming energy-saving pump body 2.
[0036] Furthermore, considering the vibration problem of the self-priming energy-saving pump body 2 during use, in a preferred embodiment, such as in the embodiment Figure 1As shown in the figure, an inlet S-bend flange 1 is connected to one side of the self-priming energy-saving pump body 2. By setting the inlet S-bend flange 1 at the pump inlet, the flow direction of the medium fluid can be changed, and the flow distance of the medium fluid can be increased. This can reduce the impact and vibration when the fluid enters the pump body, reduce the occurrence of water hammer phenomenon, thereby protecting the stable operation of the pump and the pipeline system. At the same time, the design of the inlet S-bend flange 1 can reduce the resistance and pressure loss at the inlet. Through reasonable bending radius and flow channel design, the resistance of the fluid at the inlet can be reduced, the flow efficiency at the inlet can be improved, and the energy loss can be reduced.
[0037] Please refer to Figure 4 , in order to seal the inside of the pump chamber, an impeller nut 3 is sleeved on one end of the main shaft 11 in this embodiment. The impeller nut 3 is used to limit the impeller 4 outside the main shaft 11; a motor 18 is configured in the self-priming energy-saving pump body 2. The output end of the motor 18 is connected to a coupling 17, and the end of the coupling 17 is connected to the main shaft 11; a bearing housing 16 is sleeved outside the coupling 17, and an outer rear bearing cover 15 is assembled on the bearing housing 16; a thrust ball bearing 13 and a deep groove ball bearing 14 are filled and fitted inside the bearing housing 16; an inner rear bearing cover 12 is provided on one side of the thrust ball bearing 13. The inner rear bearing cover 12 is assembled outside the main shaft 11 and abuts against the thrust ball bearing 13, and the deep groove ball bearing 14 abuts against the outer rear bearing cover 15; a front bearing cover 10 is sleeved outside the main shaft 11, and the front bearing cover 10 abuts against one side of the inner rear bearing cover 12.
[0038] In this embodiment, through the mechanical seal cover 9 provided in the mechanical seal chamber, the provided mechanical seal cover 9 can divide the pump chamber in the self-priming energy-saving pump body 2 into a mechanical seal chamber. The provided mechanical seal chamber can be used to integrally seal the mechanical mechanism inside the pump body. Through the support of the frame body of the provided bearing housing 16 and the enclosure of the inner rear bearing cover 12 and the outer rear bearing cover 15 on the bearing parts, the motor 18 and the main shaft 11 provided in the self-priming energy-saving pump body 2 can be integrally rotationally connected in a sealed manner, avoiding the entry of the medium into the output end direction of the motor 18, thereby reducing the problem of medium leakage. At the same time, compared with the traditional water seal treatment and the addition of check valves, the overall sealing performance of the pump body structure of this application is better.
[0039] The working principle of the above embodiment is:
[0040] The self-priming energy-saving SPP pump body of this application forms a vacuum chamber by using the groove part of the pump cover 5 and forms a mechanical seal chamber by using the groove part of the mechanical seal cover 9 (as in the embodiment Figure 1As shown in [Figure], the vacuum chamber is the chamber where the vacuum impeller 7 and the impeller 4 are installed, and the mechanical seal chamber is the chamber where the mechanical seal (and the pump seal) is installed. By adding a vacuum impeller 7, a vacuum chamber, and a mechanical seal chamber to the traditional large-flow SPP pump, through the structural changes of the three, the installed vacuum impeller 7 is also driven by the main shaft 11 and rotates synchronously with the impeller 4. After the pump starts, the motor 18 transmits kinetic energy to the main shaft 11 through the coupling 17, and the main shaft 11 drives the impeller 4 and the vacuum impeller 7 to rotate. At this time, the impeller 4 rotates idly, and the vacuum impeller 7 starts to do work (its characteristic is to do work specifically on air). The air at the inlet S-bend flange 1 and in the pump chamber is pumped out by the vacuum impeller 7, and the atmospheric pressure also squeezes and fills the medium into the inlet S-bend flange 1 and the pump chamber. The installed impeller 4 can then do work on the medium. Because it has an independent vacuum impeller 7 for vacuum pumping, no additional drive is required. Therefore, this pump only needs one drive source during use, and the overall energy-saving performance is stronger. At the same time, it can adapt to complex environments and can self-prime the medium without adding a separate self-priming device during use. In actual applications, the self-priming height of the SPP self-priming pump of this application can reach nine meters, solving the shortcoming of the insufficient self-priming height of the traditional pump body. At the same time, through the operation of vacuum pumping, the traditional water seal and the operation of adding a check valve are abandoned, and the overall use is simple and the portability is relatively high.
[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. Large-flow and strong self-priming energy-saving pump, characterized in that: including a self-priming energy-saving pump body (2); The self-priming energy-saving pump body (2) forms a pump chamber; a main shaft (11) is arranged in the pump chamber of the self-priming energy-saving pump body (2), and a sleeve A (6) and a sleeve B (8) are sleeved outside the main shaft (11); The sleeve A (6) and the sleeve B (8) are attached to each other, and a vacuum impeller (7) is sleeved outside them together; A mechanical seal cover (9) is sleeved outside the main shaft (11), and a groove portion is formed on one side of the mechanical seal cover (9); A pump cover (5) is also sleeved outside the main shaft (11), a groove portion is formed on one side of the pump cover (5), and the vacuum impeller (7) is surrounded therein; the other side of the pump cover (5) is connected with an impeller (4); A vacuum chamber is formed in the groove portion of the pump cover (5); the pump chamber of the self-priming energy-saving pump body (2) is spaced by the mechanical seal cover (9) and forms a mechanical seal chamber opposite to the vacuum chamber.
2. The large-flow strong self-priming energy-saving pump according to claim 1, wherein: An impeller nut (3) is sleeved on one end of the main shaft (11), and the impeller nut (3) is used to limit the impeller (4) outside the main shaft (11).
3. The large-flow strong self-priming energy-saving pump according to claim 1, characterized in that: A motor (18) is arranged in the self-priming energy-saving pump body (2), the output end of the motor (18) is connected with a coupling (17), and the end of the coupling (17) is connected with the main shaft (11).
4. The large-flow and strong self-priming energy-saving pump according to claim 3, characterized in that: A bearing bracket (16) is sleeved outside the coupling (17), and an outer rear bearing cover (15) is assembled on the bearing bracket (16).
5. The large-flow strong self-priming energy-saving pump according to claim 4, characterized in that: A thrust ball bearing (13) and a deep groove ball bearing (14) are filled and fitted in the bearing bracket (16).
6. The large-flow and strong self-priming energy-saving pump according to claim 5, characterized in that: An inner rear bearing cover (12) is arranged on one side of the thrust ball bearing (13), the inner rear bearing cover (12) is assembled outside the main shaft (11) and abuts against the thrust ball bearing (13), and the deep groove ball bearing (14) abuts against the outer rear bearing cover (15).
7. The large-flow and strong self-priming energy-saving pump according to claim 6, wherein: A front bearing cover (10) is sleeved outside the main shaft (11), and the front bearing cover (10) abuts against one side of the inner rear bearing cover (12).
8. The large-flow strong self-priming energy-saving pump according to claim 1, characterized in that: An inlet S-bend flange (1) is communicated and arranged on one side of the self-priming energy-saving pump body (2).
9. The large-flow and strong self-priming energy-saving pump according to claim 1, wherein: A pump base (19) is arranged outside the self-priming energy-saving pump body (2), and the pump base (19) is used to support and carry the self-priming energy-saving pump body (2).