CN218235508U

CN218235508U - Self-priming pump with impeller inlet multistage sealing device

Info

Publication number: CN218235508U
Application number: CN202221541241.3U
Authority: CN
Inventors: 仲建武
Original assignee: Jiangsu Hongguang Pump Valve Technology Co ltd
Current assignee: Jiangsu Hongguang Pump Valve Technology Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-01-06
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to a self priming pump technical field just discloses a self priming pump with impeller inlet multistage sealing device, including the self priming pump main part, the top fixed mounting of self priming pump main part has driving motor, and driving motor's output fixed mounting has the shaft coupling, and the terminal fixed mounting of shaft coupling has the pump shaft, and the fixed surface of pump shaft has the sealing ring, and the inside rigid coupling of self priming pump main part has the seal box. This application is when self priming pump main part pause work, can block the inside of inlet tube fast through the electronic air control valve of installation, prevent that the inside water of inlet tube can fall backward flow, can avoid the inside of inlet tube to store up a large amount of air and influence the time that the restart goes out water simultaneously as far as possible, the high efficiency has been strengthened, and through setting up mechanical seal and stopping pad, can strengthen the leakproofness of drive impeller, simultaneously air exhaust through the extraction opening initiative, can slow down the latency in the exhaust stage.

Description

Self-priming pump with impeller inlet multistage sealing device

Technical Field

The application relates to the technical field of self-priming pumps, in particular to a self-priming pump with an impeller inlet multistage sealing device.

Background

The self-priming pump belongs to a special centrifugal pump, only a certain amount of water needs to be added into a pump body before the pump body is started for the first time, the water inlet pipe does not need to be filled with water, and after the pump is started, gas in the water inlet pipe can be discharged for a certain time, so that the pump can normally work. The air-liquid mixing pump utilizes the air-liquid mixing principle and the special structure of the pump to realize air suction, forms a certain vacuum state in a suction pipeline of the pump, does not need to be attached with other special air suction devices, and can not guide water after being used every time except for water required for the first time. The centrifugal pump has the advantages of convenient use, reliable work, convenient remote centralized control, automatic operation and the like, thereby being widely applied to departments of ships, agriculture, municipal administration, electric power, mines, chemical industry and the like, being particularly suitable for occasions of flowing irrigation and drainage, moving work, frequent start, difficult liquid irrigation and the like, and having the tendency of gradually replacing the common centrifugal pump in ground water lifting.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: current self priming pump is at the time of suspension during operation, and the whereabouts of the water meeting direct reflux in the inlet channel, when leading to next time to start, need wait for once more just can go out water after the interior air of longer time discharge inlet channel, efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model provides an in order to solve among the prior art self priming pump at the time of suspension work, the interior water of inlet channel can direct reflux whereabouts, and the time of water-out overlength when restarting, and the self priming pump with multistage sealing device of impeller import that provides.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a self priming pump with multistage sealing device of impeller import, including the self priming pump main part, the top fixed mounting of self priming pump main part has driving motor, driving motor's output fixed mounting has the shaft coupling, the terminal fixed mounting of shaft coupling has the pump shaft, the fixed surface of pump shaft installs the sealing ring, the inside rigid coupling of self priming pump main part has the seal box, the inside rigid coupling of self priming pump main part has the spiral case, the surface rigid coupling of pump shaft has driving impeller, the inside fixed mounting of self priming pump main part has arc guide plate, the side fixed mounting of self priming pump main part has the inlet tube, the fixed surface of inlet tube installs electronic air control valve, the another side fixed mounting of self priming pump main part has the outlet pipe, the bottom rigid coupling of self priming pump main part has unable adjustment base.

Adopt above-mentioned technical scheme, through installation sealing ring and seal box, when drive impeller pivoted, the sealing ring can rotate to be connected in the inside of seal box, can avoid as far as possible that water can directly pass the sealing ring and spill over from the junction of pump shaft and self priming pump main part.

Preferably, the interior of the water outlet pipe is movably provided with a check valve.

By adopting the technical scheme, when the self-sucking pump main body does not work, the water backflow in the water outlet pipe can be avoided as much as possible by installing the check valve.

Preferably, the outer surface of the coupler is rotatably connected to the inside of the self-priming pump main body, and the outer surface of the sealing ring is rotatably connected to the inside of the sealing box.

By adopting the technical scheme, the sealing performance between the pump shaft and the self-priming pump main body can be enhanced.

Preferably, the outer surface of the driving impeller is rotatably connected inside the volute, and the water inlet pipe and the water outlet pipe are both communicated with the inside of the volute.

By adopting the technical scheme, the water introduced by the water inlet pipe can be guided into the water outlet pipe by driving the impeller to rotate.

Preferably, the outer surface of the pump shaft is fixedly sleeved with a mechanical seal, and the lower surface of the mechanical seal is fixedly installed on the upper surface of the driving impeller.

By adopting the technical scheme, the sealing performance between the pump shaft and the driving impeller can be enhanced.

Preferably, the outer surface of the pump shaft is fixedly sleeved with a retaining pad, and the top of the retaining pad is abutted against the lower surface of the driving impeller.

By adopting the technical scheme, the stability of the driving impeller can be enhanced, and the driving impeller is prevented from sliding up and down on the surface of the pump shaft as much as possible.

Preferably, the fixed surface of self priming pump main part installs first dop, and the inside fixed mounting of self priming pump main part has the second dop, and the side rigid coupling of self priming pump main part has the blast pipe, and the side rigid coupling of blast pipe has the extraction opening.

Adopt above-mentioned technical scheme, through setting up the extraction opening, when drive impeller pivoted, can be through the extraction opening, with inside gas outgoing, simultaneously through the extraction opening initiative bleed, can slow down the latency in the exhaust stage.

Preferably, the first clamping head and the second clamping head are connected through a rubber pipe.

By adopting the technical scheme, lubricating grease can be conveniently added into the machine seal.

Compared with the prior art, the application provides a self priming pump with multistage sealing device of impeller import, possesses following beneficial effect:

1. this self priming pump with multistage sealing device of impeller import when self priming pump main part pause work, can block the inside of inlet tube fast through the electronic air control valve of installation, prevents that the inside water of inlet tube can fall backward flow, can avoid the inside of inlet tube to store up a large amount of air and influence the time that starts out water once more simultaneously as far as possible, has strengthened the high efficiency.

2. This self priming pump with multistage sealing device of impeller import through setting up the extraction opening, when drive impeller pivoted, can discharge inside gas through the extraction opening, actively bleeds through the extraction opening simultaneously, can slow down the latency in the exhaust stage, has strengthened the practicality.

And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, and this application is through installation sealing ring and seal box, when drive impeller pivoted, can avoid water can directly pass the sealing ring and spill over from the junction of pump shaft and self priming pump main part as far as possible to through setting up mechanical seal and stopping pad, can strengthen drive impeller's leakproofness, actively bleed through the extraction opening simultaneously, can slow down the latency in the exhaust stage.

Drawings

Fig. 1 is a schematic structural view of a self-priming pump with a multistage sealing device for an impeller inlet according to the present application;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a partial structural schematic view of a multistage sealing device with an impeller inlet according to the present application.

In the figure: 1. a self-priming pump body; 2. a drive motor; 3. a coupling; 4. a pump shaft; 5. a seal ring; 6. a sealing box; 7. a volute; 8. driving the impeller; 9. an arc-shaped guide plate; 10. a water inlet pipe; 11. an electric air control valve; 12. a water outlet pipe; 13. a fixed base; 14. machine sealing; 15. a backstop pad; 16. a first chuck; 161. a second chuck; 17. an exhaust pipe; 18. an air exhaust port.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1, a self priming pump with multistage sealing device of impeller import, including self priming pump main part 1, the top fixed mounting of self priming pump main part 1 has driving motor 2, driving motor 2's output fixed mounting has shaft coupling 3, the inside at self priming pump main part 1 is connected in the rotation of surface of shaft coupling 3, the terminal fixed mounting of shaft coupling 3 has pump shaft 4, the fixed surface of pump shaft 4 installs sealing ring 5, the inside rigid coupling of self priming pump main part 1 has seal box 6, the inside at seal box 6 is connected in the rotation of surface of sealing ring 5, can avoid water can directly pass sealing ring 5 and spill over from the junction of pump shaft 4 and self priming pump main part 1 as far as possible.

Referring to fig. 1-2, the inside rigid coupling of self priming pump main part 1 has spiral case 7, the surface rigid coupling of pump shaft 4 has drive impeller 8, the fixed surface of pump shaft 4 has cup jointed mechanical seal 14, and the lower fixed surface of mechanical seal 14 installs the upper surface at drive impeller 8, the fixed surface of pump shaft 4 has cup jointed stopping pad 15, and the top of stopping pad 15 supports and leans on the lower surface at drive impeller 8, the surface rotation of drive impeller 8 connects the inside at spiral case 7, through setting up mechanical seal 14 and stopping pad 15, can strengthen drive impeller 8's leakproofness.

Referring to fig. 1-2, there is arc guide plate 9 inside fixed mounting of self priming pump main part 1, self priming pump main part 1's side fixed mounting has inlet tube 10, inlet tube 10's fixed surface installs electronic air control valve 11, self priming pump main part 1's another side fixed mounting has outlet pipe 12, inlet tube 10 and outlet pipe 12 all are linked together with spiral case 7's inside, outlet pipe 12's inside movable mounting has the check valve, self priming pump main part 1's bottom rigid coupling has unable adjustment base 13, through installing electronic air control valve 11, can block inlet tube 10's inside fast, prevent that the inside water of inlet tube 10 can the whereabouts backward flow, can avoid inlet tube 10's inside to store up a large amount of air and influence the time of restarting the water simultaneously as far as possible.

Referring to fig. 1-3, the outer surface fixed mounting of self priming pump main part 1 has first dop 16, and the inside fixed mounting of self priming pump main part 1 has second dop 161, and second dop 161 is linked together with the space above the machine seals 14, connects through the rubber tube between first dop 16 and the second dop 161, and the side rigid coupling of self priming pump main part 1 has blast pipe 17, and the side rigid coupling of blast pipe 17 has extraction opening 18, through the initiative extraction of extraction opening 18, can slow down the latency in the exhaust stage.

The working principle is as follows: when lubricant is added to the inside of the starter seal 14, lubricating grease can be directly injected into the surface of the starter seal 14 through the first clamping head 16, when the starter self-priming pump main body 1 is used, the pump shaft 4 is driven to rotate through the coupler 3, when the pump shaft 4 rotates, the driving impeller 8 can be rotatably connected to the inside of the volute 7, and due to air pressure, water can be pumped into the inside of the volute 7 through the water inlet pipe 10 and then discharged from the water outlet pipe 12, when the driving impeller 8 rotates, the sealing ring 5 can be rotatably connected to the inside of the sealing box 6, and when the driving impeller 8 rotates, air can be generated inside the volute 7, and the air can be discharged from the air suction port 18 through the exhaust pipe 17, after air suction is finished, the plug is in threaded connection with the inside of the air suction port 18, the air suction port 18 is blocked, when the pump main body 1 stops working temporarily, the inside of the water inlet pipe 10 can be actively blocked by installing the electric air control valve 11, the impeller in the inside of the water inlet pipe 10 can be prevented from falling and flowing back, meanwhile, the time of starting water discharge can be avoided from accumulating in a large amount to influence, high efficiency is enhanced, and the efficiency of the starter seal can be enhanced through the exhaust gasket 15, and the exhaust port can be simultaneously, and the exhaust waiting time can be reduced by the exhaust port 15.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present application, and equivalent alternatives or modifications according to the technical solutions and the application concepts of the present application, which are within the technical scope of the present application.

Claims

1. The utility model provides a self priming pump with multistage sealing device of impeller import, including self priming pump main part (1), a serial communication port, the top fixed mounting of self priming pump main part (1) has driving motor (2), the output fixed mounting of driving motor (2) has shaft coupling (3), the terminal fixed mounting of shaft coupling (3) has pump shaft (4), the fixed surface of pump shaft (4) installs sealing ring (5), the inside rigid coupling of self priming pump main part (1) has seal box (6), the inside rigid coupling of self priming pump main part (1) has spiral case (7), the surface rigid coupling of pump shaft (4) has drive impeller (8), the inside fixed mounting of self priming pump main part (1) has arc guide plate (9), the side fixed mounting of self priming pump main part (1) has inlet tube (10), the fixed surface of inlet tube (10) installs electronic air control valve (11), the another side fixed mounting of self priming pump main part (1) has outlet pipe (12), the bottom rigid coupling of self priming pump main part (1) has unable adjustment base (13).

2. The self-primer pump with impeller inlet multistage sealing device according to claim 1, characterized in that the interior of the outlet pipe (12) is movably mounted with a check valve.

3. The self-primer pump with impeller-inlet multistage sealing device according to claim 1, wherein the outer surface of the coupling (3) is rotatably connected inside the self-primer pump body (1), and the outer surface of the sealing ring (5) is rotatably connected inside the sealing box (6).

4. The self-priming pump with the multistage impeller-inlet sealing device according to claim 1, wherein the outer surface of the driving impeller (8) is rotatably connected to the inside of the volute (7), and the water inlet pipe (10) and the water outlet pipe (12) are both communicated with the inside of the volute (7).

5. The self-priming pump with the multistage impeller-inlet sealing device according to claim 1, wherein a mechanical seal (14) is fixedly sleeved on the outer surface of the pump shaft (4), and the lower surface of the mechanical seal (14) is fixedly installed on the upper surface of the driving impeller (8).

6. The self-priming pump with the multistage impeller-inlet sealing device according to claim 1, wherein a retaining pad (15) is fixedly sleeved on the outer surface of the pump shaft (4), and the top of the retaining pad (15) abuts against the lower surface of the driving impeller (8).

7. The self-sucking pump with the multistage sealing device at the impeller inlet according to claim 1, characterized in that a first chuck (16) is fixedly installed on the outer surface of the self-sucking pump main body (1), a second chuck (161) is fixedly installed inside the self-sucking pump main body (1), an exhaust pipe (17) is fixedly connected to the side surface of the self-sucking pump main body (1), and an air suction opening (18) is fixedly connected to the side surface of the exhaust pipe (17).

8. The self-primer pump with impeller inlet multi-stage seal arrangement of claim 7 wherein said first chuck (16) and said second chuck (161) are connected by a hose.