Multiple separation self-priming pump

Abstract

This application relates to a multi-separation self-priming pump, belonging to the technical field of water pumps. It includes a pump body with an inlet, an outlet, and a pump chamber. Both the inlet and outlet are connected to the pump chamber. A check valve is provided at the inlet, allowing unidirectional flow from the outside to the pump chamber. A one-way valve is provided at the connection between the pump chamber and the outlet, allowing unidirectional flow from the pump chamber to the outside. A partitioning assembly is also provided within the pump chamber, dividing it into multiple non-communicating compartments. The partitioning assembly is eccentrically positioned within the pump chamber. A rotating component on the pump body is also provided to drive the partitioning assembly to rotate. This application has the advantage of shortening the start-up time of the self-priming pump.

Description

Technical Field

[0001] This application relates to the technical field of water pumps, and in particular to a multi-separation self-priming pump. Background Technology

[0002] Self-priming pumps have advantages such as wide applicability and simple structure, and are therefore widely used in agricultural irrigation, chemical production, and mineral transportation. However, because self-priming pumps rely on the centrifugal force of the impeller to create a vacuum and lift water, the gate valve must be closed and the pump primed before starting. Therefore, in emergency situations, priming a self-priming pump for the first time significantly prolongs the start-up time and severely restricts its working efficiency. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, one of the objectives of this application is to provide a multi-separation self-priming pump, which has the advantage of shortening the start-up time of the self-priming pump.

[0004] The above-mentioned objective of this application is achieved through the following technical solution:

[0005] A multi-separation self-priming pump includes a pump body with an inlet, an outlet, and a pump chamber. Both the inlet and outlet are connected to the pump chamber. A check valve is provided at the inlet, allowing unidirectional flow from the outside to the pump chamber. A one-way valve is provided at the connection between the pump chamber and the outlet, allowing unidirectional flow from the pump chamber to the outside. A partitioning assembly is also provided within the pump chamber, dividing it into multiple non-communicating partition chambers. The partitioning assembly is eccentrically positioned within the pump chamber. A rotating component is also provided on the pump body to drive the partitioning assembly to rotate.

[0006] By adopting the above technical solution, during use, the partition component rotates. Since the partition component is eccentrically set in the pump cavity and divides the pump cavity into multiple non-interconnected partition chambers, the volume of the partition chambers in the pump cavity periodically increases and decreases during the rotation of the partition component. When the volume of the partition chamber on the side of the pump cavity closer to the inlet increases, external gas will enter the pump cavity through the inlet. When the volume of the partition chamber on the side of the pump cavity closer to the outlet decreases, the gas there will be discharged from the outlet, thereby achieving waterless start-up and shortening the start-up time of the self-priming pump.

[0007] In a preferred embodiment, the present application may be further configured such that: the partition assembly includes a rotating member and a telescopic member connected to the rotating member, the telescopic member and the rotating member are connected, the telescopic member is in contact with the cavity wall of the pump chamber, and the partition cavity is formed between the telescopic member, the rotating member and the pump chamber.

[0008] By adopting the above technical solution, the presence of the telescopic component during use allows for better contact with the surface of the pump cavity, thereby improving the pressure regulation effect within the partition cavity.

[0009] In a preferred embodiment, the present application may be further configured such that: the telescopic member includes a partition plate and an elastic member, the rotating member is further provided with a connecting cavity, the partition plate extends into the connecting cavity, the elastic member is located in the connecting cavity and one end abuts against the end of the partition plate extending into the connecting cavity, and the other end abuts against the cavity wall of the connecting cavity.

[0010] By adopting the above technical solution, the presence of the elastic element ensures that one end of the partition plate can always maintain a good fit with the cavity wall of the pump chamber during use.

[0011] In a preferred embodiment, this application may be further configured such that: the pump body is further provided with a separation chamber and an exhaust port, the water inlet is connected to the separation chamber, the separation chamber is connected to the pump chamber, the exhaust port is connected to the separation chamber and is located above the separation chamber, and the separation chamber is further provided with a separation device for gas-liquid separation.

[0012] By adopting the above technical solution, the separation device can perform gas-liquid separation on the mixed liquid entering the separation chamber, thereby reducing the gas content entering the pump chamber.

[0013] In a preferred embodiment, the present application may be further configured such that: the separation device includes a separation blade and a drive component for driving the agitator to rotate; the water inlet is located on one side of the separation blade; and the separation device further includes a second one-way valve, which is located at the exhaust port and allows one-way flow from the separation chamber to the outside.

[0014] By adopting the above technical solution, centrifugal force is applied to the gas-liquid mixture during the rotation of the separating blade, thereby achieving the purpose of gas-liquid separation.

[0015] In a preferred embodiment, the present application may be further configured such that the separating blade includes a rotating shaft and helical blades mounted on the rotating shaft.

[0016] By adopting the above technical solution, the presence of the spiral blades enables the application of good centrifugal force to the gas-liquid mixture.

[0017] In a preferred embodiment, the present application may be further configured such that: the pump body is further provided with an impurity chamber, the impurity chamber being located below the separation chamber and communicating with the separation chamber.

[0018] By adopting the above technical solution, during use, impurities in the separation chamber will enter the impurity chamber, thereby achieving the purpose of separating impurities.

[0019] In a preferred embodiment, this application may be further configured such that: the impurity chamber is further provided with a cutting blade, which rotates within the impurity chamber to cut the impurities within the impurity chamber.

[0020] By adopting the above technical solution, the presence of the cutting blade enables the cutting of impurities in the impurity chamber, thereby facilitating the discharge of impurities from the impurity chamber.

[0021] In a preferred embodiment, the present application may be further configured such that: the pump body is further provided with a cleaning chamber and a feeding port, the feeding port and the cleaning chamber are connected, the cleaning chamber and the pump chamber are connected, and the water outlet and the cleaning chamber are connected.

[0022] By adopting the above technical solution, that is, during use, the impurity removal agent is added through the feeding port to remove impurities dissolved in the water, thereby making the water impurity removal process better.

[0023] In a preferred embodiment, this application may be further configured such that: the impurity removal chamber is further provided with a stirring device for stirring the liquid in the impurity removal chamber.

[0024] By adopting the above technical solution, the presence of the stirring device makes the impurity removal agent dissolve better in the liquid, further enhancing the impurity removal effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this application.

[0026] Figure 2 This is a schematic diagram of the check valve structure of this application.

[0027] Figure 3 This is a schematic diagram of the separation device structure of this application.

[0028] Figure 4 This is a schematic diagram of the internal structure of the impurity cavity in this application.

[0029] Figure 5 This is a schematic diagram of the partition component structure in this application.

[0030] Attached reference numerals: 1. Pump body; 11. Inlet; 12. Outlet; 13. Exhaust port; 14. Separation chamber; 141. Separation chamber; 142. Expansion chamber; 15. Filter channel; 151. Filter screen; 16. Impurity chamber; 161. Baffle; 17. Pump chamber; 171. Connecting hole; 172. Separation chamber; 18. One-way channel; 181. One-way valve; 19. Impurity removal chamber; 191. Feed port; 2. Check valve; 21. Valve body; 2 2. Upper-stage storage valve chamber; 23. Lower-stage storage valve chamber; 24. Rubber valve; 3. Separation device; 31. Drive component; 32. Separating blade; 321. Rotating shaft; 322. Spiral blade; 33. One-way valve II; 34. Adsorption pad; 41. Cutting blade; 42. Drive shaft; 5. Separation assembly; 51. Rotating component; 511. Connecting cavity; 52. Telescopic component; 521. Separating plate; 522. Elastic component; 61. Stirring blade; 62. Stirring shaft. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figures 1-5 This application discloses a multi-stage self-priming pump with multiple separations, comprising a pump body 1. The pump body 1 has an inlet 11, an outlet 12, an exhaust port 13, a separation chamber 14, a filter channel 15, an impurity chamber 16, a pump chamber 17, a one-way flow channel 18, a feed port 191, and a removal chamber 19. The inlet 11 is located on one side of the separation chamber 14 and is connected to the separation chamber 14. The exhaust port 13 is located above the separation chamber 14 and is connected to the separation chamber 14. The impurity chamber 16 is located below the separation chamber 14 and is connected to the separation chamber 14 through the filter channel 15. The pump chamber 17 is connected to the filter channel 15. One end of the one-way flow channel 18 is connected to the pump chamber 17, and the other end is connected to the removal chamber 19. The pump chamber 17 has a connecting hole 171 for connecting to the filter channel 15 and the one-way flow channel 18, respectively. The feeding port 191 is located above the impurity removal chamber 19 and is connected to the impurity removal chamber 19, and the water outlet 12 is located at the upper part of the impurity removal chamber 19 and is connected to the impurity removal chamber 19.

[0033] A check valve 2 is installed at the inlet 11. The check valve 2 includes a valve body 21. The valve body 21 has an upper-level storage valve chamber 22, a rubber valve 24 plate, and a lower-level storage valve chamber 23. The rubber valve 24 plate and the valve body 21 are rotatably connected. The upper-level storage valve chamber 22 and the lower-level storage valve chamber 23 are respectively located on both sides of the rubber valve 24 plate, providing space for the movement of the rubber valve 24 plate. The maximum rotation angle of the rubber valve 24 plate is 60°. The length of the rubber valve 24 plate is 2:1 to the diameter of the inlet 11 and 4:5 to the length of the upper-level storage valve chamber 22.

[0034] The separation chamber 14 includes a separation chamber 141 and an expansion chamber 142 located below the separation chamber 141. The diameter of the expansion chamber 142 is larger than the diameter of the separation chamber 141. A separation device 3 is provided inside the separation chamber 141. The separation device 3 includes a separation blade 32 and a drive component 31. In this embodiment, the drive component 31 is a motor. The separation blade 32 includes a rotating shaft 321 and a twisted spiral blade 322 wound around the rotating shaft 321 and fixedly connected to it. The separation device 3 also includes a second one-way valve 33, which is installed at the exhaust port 13 and allows one-way flow from the separation chamber 14 to the outside. The separation chamber 141 and the expansion chamber 142 are connected, and an absorbent pad 34 is fixedly connected inside the expansion chamber 142. In this embodiment, the absorbent pad 34 is made of cotton, but it can also be made of other materials with absorbent properties. The absorbent pad 34 has holes for the passage of the mixed liquid.

[0035] A filter screen 151 is installed inside the filter channel 15. The filter screen 151 is tubular, with one end connected to the expansion chamber 142 and the other end connected to the impurity chamber 16. One side of the filter screen 151 is connected to the pump chamber 17. Two baffles 161, made of rubber, are also installed inside the impurity chamber 16. One baffle is located at the connection between the impurity chamber 16 and the filter channel 15, and the other is located below the impurity chamber 16. The baffles 161 are rotatably connected to the pump body 1, and the diameter of the baffles 161 is smaller than the inner diameter of the filter screen 151. A rotating shaft is provided radially on the baffles 161 and extends outside the pump body 1. Under the drive of an external force (such as human power or the driving force generated by an electric motor), the rotating shaft can drive the baffles 161 to rotate.

[0036] The impurity chamber 16 is also provided with a cutting blade 41, and a drive shaft 42 is provided on the cutting blade 41. The drive shaft 42 extends to the outside of the pump body 1. Under the drive of external force (such as human power or the driving force generated by the motor), the drive shaft 42 can drive the cutting blade 41 to rotate.

[0037] The pump chamber 17 has a circular cross-section and a partition assembly 5 is provided inside. The partition assembly 5 includes a rotating member 51 and a telescopic member 52. The rotating member 51 is cylindrical and its end face contacts the cavity wall of the pump chamber 17 to form a seal. The center point of the rotating member 51 is located above the center point of the pump chamber 17, and a connecting cavity 511 is provided on the rotating member 51. The telescopic member 52 includes an elastic member 522 and a partition plate 521. One end of the partition plate 521 extends into the connecting cavity 511, and the other end abuts against the cavity wall of the pump chamber 17. The elastic member 522 is located in the connecting cavity 511, and one end abuts against the end of the partition plate 521 that extends into the connecting cavity 511, while the other end abuts against the cavity wall of the connecting cavity 511. The output shaft of an external motor extends into the pump chamber 17 and connects with the center point of the rotating member 51, driving the rotating member 51 to rotate along its own axis. The axis of the output shaft passes through the center point of the rotating member 51. In this embodiment, the elastic member 522 is a spring. In this embodiment, the connecting cavity 511 consists of six telescopic members 52, each corresponding to a connecting cavity 511 and evenly distributed on the rotating member 51. That is, in this embodiment, the partition plate 521, the cavity wall of the pump cavity 17, and the rotating member 51 constitute six non-communicating partition cavities 172. The ratio of the length of the partition plate 521 to the length of the vertical line from the lowest point of the rotating member 51 to the cavity wall of the pump cavity 17 is 26:25; the ratio of the radius of the rotating member 51 to the radius of the pump cavity 17 is 2:3; and the ratio of the distance from the center point of the rotating member 51 to the center point of the pump cavity 17 to the radius of the pump cavity 17 is 1:6.

[0038] A one-way valve 181 is provided in the one-way flow channel 18, which allows one-way flow from the pump chamber 17 to the impurity removal chamber 19. The impurity removal chamber 19 is equipped with a stirring device, which includes a stirring shaft 62 and stirring blades 61 fixedly mounted on the stirring shaft 62. Under the drive of an external force (such as human power or the driving force generated by an electric motor), the stirring shaft 62 can drive the baffle 161 to rotate. A check valve 2 is installed at the feeding port 191, which allows flow from the outside to the impurity removal chamber 19. Its structure is the same as that of the check valve 2 installed at the water inlet 11.

[0039] The implementation principle of this embodiment is as follows: During use, the motor drives the rotating part 51 to rotate counterclockwise, thus the partition plate 521 rotates. During the rotation, due to the presence of the partition chamber 172 and the eccentric arrangement of the rotating part 51 within the pump chamber 17, the volume of the partition chamber 172 located to the left of the center line of the pump chamber 17 gradually increases, and the pressure decreases. This allows the gas in the separation chamber 14 to be replenished into the partition chamber 172. The gas in the external pipeline is replenished into the separation chamber 14 through the check valve 2. During the rotation, the volume of the partition chamber 172 located to the right of the center line of the pump chamber 17 continuously decreases, and the pressure gradually increases. This allows the pressure in the pump chamber 17 to flow through the one-way valve 181 to the impurity removal chamber 19 and be discharged. When the gas and liquid in the external pipeline enter the separation chamber 14, they will come into contact with the rotating separation blade 32 within the separation chamber 14, and under the action of centrifugal force, the gas and liquid phases will separate. When the air pressure inside chamber 141 allows the one-way valve 33 at the exhaust port to be open, the gas in the separation chamber 141 will be discharged from the exhaust port. At the same time, the adsorption pad 34 adsorbs the liquid, which can further enhance the discharge of gas. After passing through the separation chamber 14, the liquid will enter the filter screen 151. Impurities will be blocked by the filter screen 151. When the baffle 161 at the connection between the impurity chamber 16 and the filter channel 15 rotates, the impurities in the filter screen 151 will enter the impurity chamber 16 and come into contact with the rotating cutting blade 41 in the impurity chamber 16, and be cut into smaller impurities. The liquid filtered by the filter screen 151 will enter the pump chamber 17 and, under the action of the rotating part 51, enter the impurity removal chamber 19 through the one-way valve 181. Impurity removal agent, such as flocculant, is added through the feed port 191 and, under the stirring of the stirring blade 61, fully contacts the liquid in the impurity removal chamber 19, thereby further removing impurities from the liquid in the impurity removal chamber 19. After the work is completed, all motors in working condition are turned off. With the cooperation and sealing of check valve 2, check valve 181, and check valve 23, the damage caused by water hammer during shutdown can be effectively reduced, and the service life of the pump can be extended. When restarted, it can directly enter the normal operating condition, which significantly improves the work efficiency.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage self-priming pump, characterized in that: The system includes a pump body (1), which has an inlet (11), an outlet (12), and a pump chamber (17). Both the inlet (11) and outlet (12) are connected to the pump chamber (17). A check valve (2) is provided at the inlet (11), allowing one-way flow from the outside to the pump chamber (17). A one-way valve (181) is provided at the connection between the pump chamber (17) and the outlet (12), allowing one-way flow from the pump chamber (17) to the outside. A partition assembly (5) is also provided inside the pump chamber (17), which separates the contents of the pump chamber (17) from the outside. The pump chamber (17) is divided into multiple non-communicating partition chambers (172). The partition assembly (5) is eccentrically disposed within the pump chamber (17). The pump body (1) is also provided with a rotating component (51) for driving the partition assembly (5) to rotate. The partition assembly (5) includes a rotating component (51) and a telescopic component (52) connected to the rotating component (51). The telescopic component (52) is connected to the rotating component (51) and contacts the cavity wall of the pump chamber (17). The telescopic member (52), the rotating member (51), and the pump chamber (17) form the partition cavity (172); the telescopic member (52) includes a partition plate (521) and an elastic member (522); the rotating member (51) is also provided with a connecting cavity (511); the partition plate (521) extends into the connecting cavity (511); the elastic member (522) is located in the connecting cavity (511) and one end abuts against the end of the partition plate (521) extending into the connecting cavity (511), and the other end abuts against the cavity wall of the connecting cavity (511); the pump body (1) also has The pump body (1) is provided with a separation chamber (14) and an exhaust port (13). The water inlet (11) is connected to the separation chamber (14), the separation chamber (14) is connected to the pump chamber (17), the exhaust port (13) is connected to the separation chamber (14) and is located above the separation chamber (14). The separation chamber (14) is also provided with a separation device (3) for gas-liquid separation. The pump body (1) is also provided with an impurity chamber (16), which is located below the separation chamber (14) and is connected to the separation chamber (14).

2. The multi-separation self-priming pump according to claim 1, characterized in that: The separation device (3) includes a separation blade (32) and a drive unit (31) for driving the stirring separation blade (32) to rotate. The water inlet (11) is located on one side of the separation blade (32). The separation device (3) also includes a one-way valve (33), which is located at the exhaust port (13) and is unidirectionally connected to the outside through the separation chamber (14).

3. The multi-separation self-priming pump according to claim 2, characterized in that: The separating blade (32) includes a rotating shaft (321) and a helical blade (322) mounted on the rotating shaft (321).

4. The multi-separation self-priming pump according to claim 1, characterized in that: The impurity chamber (16) is also provided with a cutting blade (41), which rotates in the impurity chamber (16) to cut the impurities in the impurity chamber (16).

5. A multi-separation self-priming pump according to claim 1, characterized in that: The pump body (1) is also provided with a cleaning chamber (19) and a feeding port (191). The feeding port (191) is connected to the cleaning chamber (19). The cleaning chamber (19) is connected to the pump chamber (17). The water outlet (12) is connected to the cleaning chamber (19).

6. A multi-separation self-priming pump according to claim 5, characterized in that: The impurity removal chamber (19) is also equipped with a stirring device for stirring the liquid in the impurity removal chamber (19).

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