CN2811627Y

CN2811627Y - Seal-free self-priming pump

Info

Publication number: CN2811627Y
Application number: CN 200520091840
Authority: CN
Inventors: 朱龙友
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-15
Filing date: 2005-07-15
Publication date: 2006-08-30
Anticipated expiration: 2015-07-15

Abstract

The utility model relates to a kind of non-sealing self-sucking pump, and this self-priming pump mainly comprises motor, the pump housing, combined rotor, solenoid valve and safety check; Be divided into the suction chamber and the delivery chamber that are interconnected in the pump housing; Suction chamber is externally connected with suction pipe; Suction pipe is provided with solenoid valve; The motor power axle head is fixedlyed connected with the delivery chamber end of the pump housing by fixed base; The motor power axle directly connects with combined rotor; Combined rotor is arranged in the delivery chamber cavity of the pump housing, and it is provided with impeller by the axle front end, and impeller is provided with stator, on the axle behind the impeller cutoff board is set, and on the axle behind the cutoff board sub-propeller is set and constitutes; Delivery chamber is externally connected with drain pipe, and drain pipe is provided with safety check.The utility model is simple in structure, volume is little, aesthetic in appearance, good stability, employing sub-propeller, realize not having sealing, not having and leak, and desirable all corrosion-resistant Under Water Pumpss of foundry industry, the utility model cost is low, long service life, its cost of production is low.

Description

Non-sealing self-sucking pump

One, technical field: the utility model relates to a kind of pump, particularly relates to a kind of industries such as chemical industry, oil field that are applied to and carries out a kind of packingless self-priming pump that liquid is carried, and belongs to mechanical field.

Two, background technique: at present, centrifugal pump has supporting type, cantilever type, middle open type, axial flow, liquid following formula etc. several, but they in use all exist connecting link many, it is short that accumulated error is big, it's the long life is past axle, cost height, problems such as maintenance difficult, especially Under Water Pumps also exist vibration big, maintenance is inconvenient, working life is short, is subjected to installation conditions restriction etc., and Under Water Pumps is because connecting link is many, the length of axle is big, the ordinary circumstance lower tail is long wants three sections axles just can meet the demands more than 5 meters, and swing was too big when the impeller of pump was worked, damage soon, can't keep in repair after the damage.

Three, summary of the invention:

1, goal of the invention: the utility model provides a kind of non-sealing self-sucking pump, and it is many that its purpose is to solve traditional Under Water Pumps connecting link, and accumulated error is big, axle is long, and working life is short, cost height, the problem that aspects such as maintenance difficult exist.

2, technological scheme: the utility model is achieved through the following technical solutions:

A kind of non-sealing self-sucking pump is characterized in that: this self-priming pump mainly comprises motor, the pump housing, combined rotor, solenoid valve and safety check; Be divided into the suction chamber and the delivery chamber that are interconnected in the pump housing; Suction chamber is externally connected with suction pipe; Suction pipe is provided with solenoid valve; The motor power axle head is fixedlyed connected with the delivery chamber end of the pump housing by fixed base; The motor power axle directly connects with combined rotor; Combined rotor is arranged in the delivery chamber cavity of the pump housing, and it is provided with impeller by the axle front end, and impeller is provided with stator, on the axle behind the impeller cutoff board is set, and on the axle behind the cutoff board sub-propeller is set and constitutes; Delivery chamber is externally connected with drain pipe, and drain pipe is provided with safety check.

Stator is made of semiclosed cover plate and blade.

The pump housing is seat vertical barrel single-stage or multilevel hierarchy.

3, advantage and effect: by the enforcement of technical solutions of the utility model, it is many to solve traditional Under Water Pumps connecting link well, and accumulated error is big, axle is long, and working life is short, cost height, the problem that aspects such as maintenance difficult exist.The utility model is simple in structure; volume is little; aesthetic in appearance; good stability; adopt sub-propeller; realize not having sealing; do not have and leak; desirable all corrosion-resistant Under Water Pumpss of foundry industry; the utility model cost is low; long service life; its cost of production only is 25% of a Under Water Pumps; life-span is more than 5 times of Under Water Pumps; because the setting of cutoff board; can stop the interior liquid of pump chamber to be socialized well influences pump performance, and sub-propeller is installed in the upper end of the pump housing, and it plays and stops the liquid direct-axis directly to overflow; play fine seal action; because magnetic force promotes flap closed vent hole, make suction pipe be in full closeding state during the solenoid valve start, satisfied the requirement of self-priming; shut down back automatic disconnection ventilation; prevent that suction pipe from producing siphonage, with the endoceliac liquid emptying of pump, safety check when start since the pressure effect in the pump housing make it to open voluntarily; during shutdown because pipeline internal liquid return pressure and flap are conducted oneself with dignity just valve plate close automatically, play and stop the purpose that refluxes.

Four, description of drawings: accompanying drawing 1 is the utility model structural representation;

Accompanying drawing 2 is the utility model appliance wiring schematic representation.

Five, embodiment:

As shown in Figure 1, the utility model non-sealing self-sucking pump, this self-priming pump mainly comprise motor 1, the pump housing 9, combined rotor, solenoid valve 2 and safety check 10; The profile of the pump housing 9 is the sitting cartridge type, and its structure is a single-stage or multistage; Be divided into the suction chamber 11 and the delivery chamber 12 that are interconnected in the pump housing 9; Suction chamber 11 is externally connected with suction pipe 13; Suction pipe 13 is provided with solenoid valve 2, because magnetic force promotes the flap closed grate hole, makes suction pipe be in full closeding state during start, satisfy the requirement of self-priming, shut down back automatic disconnection ventilation, prevent that suction pipe from producing siphonage, the endoceliac liquid emptying of pump; Motor directly connects an end of delivery chamber in the pump housing 9, combined rotor is arranged in the delivery chamber cavity of the pump housing 9, the line shaft of motor directly connects with combined rotor, combined rotor is made of following structure: axle 5 front ends are provided with impeller 7, impeller 7 is provided with stator 8, and stator 8 is made of semiclosed cover plate and blade, is installed in the pump housing 9 delivery chamber inner chamber bottoms, it plays the diffuser effect, medium and suitable delivering in the extrusion chamber of pump that main collection is spread out of by impeller 7; Axle behind the impeller 7 is provided with cutoff board 6 on 5, and cutoff board 6 is used for preventing the fluid rotation of taking advantage of a situation, and influences pump performance to stop medium to rotate; On the axle 5 behind the cutoff board 6 sub-propeller 4 is set, sub-propeller 4 is arranged on the upper end and the motor base (frame) joint of the pump housing 9 inner chambers, stops the liquid direct-axis directly to overflow well, plays seal action, save the Sealing of establishing in addition on traditional self-priming pump, reduced the leakage that causes because of the Sealing damage; Delivery chamber 12 is externally connected with drain pipe 14; drain pipe 14 is provided with safety check 10; because the pressure effect in the pump housing makes it to open voluntarily, because pipeline internal liquid return pressure and flap deadweight are closed valve plate automatically, play the purpose that prevention refluxes during shutdown during start.

The utility model adopts sub-propeller 4 to satisfy seal request and addresses the leakage concern; It is good that stator 8 has solved the little run stability of volume; Solve self-priming by 7 exhausts of water seal impeller; Cutoff board 6 prevents following current rotation unsteady flow in the pump chamber; When the solenoid valve may command is shut down following current directly down, guaranteeing has certain liquid level in the pump chamber, accomplishes that a drainage forever uses; Safety check 10 guarantees not reflux, and liquid medium overflows from the sub-propeller sealing part when preventing to shut down.

The utility model working procedure is as follows:

As shown in Figure 2, with this practical motor and solenoid valve with after power supply correctly is connected, suction pipe and drain pipe are with after medium pipeline to be carried is communicated with, make motor and solenoid valve connect power supply, during the solenoid valve start because magnetic force promotion flap closed vent hole, make suction pipe be in full closeding state, satisfied the requirement of self-priming, combined rotor in the motor drives pump housing delivery chamber cavity rotates, impeller produces the interior vacuum phenomenon that produces of suction chamber that centrifugal force makes the pump housing 9 during the combined rotor running, reach the order ground of self-priming, enter the liquid and the air of impeller, gas and liquid mixture is discharged the stator that directly has been sent to the diffuser effect by impeller, delivery chamber collection back by the pump housing is external by connected drain pipe excavationg pump, during pump work, cutoff board 6 on the combined rotor can prevent the fluid rotation of taking advantage of a situation, and has effectively stoped the medium rotation to influence pump performance; Sub-propeller 4 is installed in the pump housing 9 upper ends; it can play the motor cabinet lower end and stop the liquid direct-axis directly to overflow; play seal action; because pipeline internal liquid return pressure and the deadweight of safety check flap are closed valve plate automatically, play the purpose that stops backflow during shutdown, and after shutting down; solenoid valve automatic disconnection vent; prevent that suction pipe from producing siphonage, cause the endoceliac liquid emptying of pump, self-priming when convenience is descended task.

Claims

1, a kind of non-sealing self-sucking pump is characterized in that: this self-priming pump mainly comprises motor (1), the pump housing (9), combined rotor, solenoid valve (2) and safety check (10); Be divided into the suction chamber (11) and the delivery chamber (12) that are interconnected in the pump housing (9); Suction chamber (11) is externally connected with suction pipe (13); Suction pipe (13) is provided with solenoid valve (2); Motor (1) power axle head is fixedlyed connected with delivery chamber (12) end of the pump housing (9) by fixed base (3); Motor (1) line shaft directly connects with combined rotor; Combined rotor is arranged in the delivery chamber cavity of the pump housing (9), it is provided with impeller (7) by axle (5) front end, impeller (7) is provided with stator (8), on the axle (5) behind the impeller (7) cutoff board (6) is set, and sub-propeller (4) is set on the axle (5) behind the cutoff board (6) constitutes; Delivery chamber (12) is externally connected with drain pipe (14), and drain pipe (14) is provided with safety check (10).

2, according to the non-sealing self-sucking pump described in the claim 1, it is characterized in that: stator (8) is made of semiclosed cover plate and blade.

3, according to the non-sealing self-sucking pump described in the claim 1, it is characterized in that: the pump housing (9) is seat vertical barrel single-stage or multilevel hierarchy.