CN2432361Y

CN2432361Y - Combined water pump

Info

Publication number: CN2432361Y
Application number: CN 00212575
Authority: CN
Inventors: 史守明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-08
Filing date: 2000-07-08
Publication date: 2001-05-30
Anticipated expiration: 2010-07-08

Abstract

The utility model discloses a special water pumping pump. The utility model is composed of a centrifugal water pump and a vacuum pump which are combined, wherein, the centrifugal water pump and the vacuum pump are respectively driven by motors, and the other end of an air pumping pipe of the vacuum pump is connected with the water outlet of the centrifugal water pump; the water outlet in the centrifugal water pump is also provided with an inducting contact terminal of a liquid level relay. A sealing float which is arranged and is safely used can prevent water from being pumped in the vacuum pump. A switch of the motor of the vacuum pump and a switch of the motor of the centrifugal water pump can be automatically switched by a control circuit and can be manually controlled. The utility model can always maintain strong automatic pumping capacity in the course of pumping the water, and when a distance between the utility model and a water surface is larger, the utility model which has the advantage of wide application range can be used for normally pumping the water.

Description

Combined water pump

The utility model is a kind of suction pump that is constituted by centrifugal water pump and vacuum pump.

Present suction pump generally adopts submersible pump, submersible pump has good sealing property, can be in continuous operation under the liquid level, liquid is transported to the height of tens meters and even hundreds of rice, yet submersible pump also exists himself unconquerable defective, must under the liquid level of certain depth, work as submersible pump, be unfavorable for pond operation clearly, submersible pump maintenance difficulty, could overhaul after must from the pond, hanging out pump, pretty troublesome, be used for carrying the submersible pump of sewage to be corroded easily in the sewage operation for a long time, parts and motor are damaged.The common pulsating pump of use that also has; though there is not the defective of submersible pump; but its self-priming height is low; can not satisfy requirement than the deep water position; and now occurred the strong self-priming water pump of suction pump and the shared motor of aspirator; in initial breathing process; water pump spindle rotates under the lubricated situation not having, and has aggravated the wearing and tearing of seal, and after water is pumped up; again aspirator and motor are thrown off; when occurring falling the water phenomenon in the course of the work, could hang into aspirator after must shutting down, such takes off again; hang operation; increase working strength of workers, also influenced the continuity of draining.

The purpose of this utility model is, provides a kind of suction pump and vacuum pump respectively by two motor driving, the water pump liquid level reaches setting height, can close vacuum pump automatically, and the highly big Combined water pump of vertical suction is to overcome the deficiency of prior art.

Available following mode realizes the utility model:

Combined water pump comprises centrifugal water pump and aspirator, described aspirator is a vacuum pump, vacuum pump and centrifugal water pump are driven respectively by two motors, the sucking pipe the other end of vacuum pump is installed in centrifugal water pump water outlet place, water outlet place in the pump case of water pump also is provided with the induction contact of a liquid level relay, and the signal output part of induction contact is connected to the input end of control circuit.

This Combined water pump drives centrifugal water pump and vacuum pump work respectively by two motors, the automatic switchover of motor, the electrical signal that is sent by induction contact moves for control circuit and realizes, operator's working strength is reduced greatly, and utilize the gettering ability of vacuum pump, water can be aspirated up from very low water level, with the ground replacement submersible pump that draws water, prolong pump working life, and in pump process, remain the suction capacity of extra-heavy,, can open vacuum pump with suction pump and work simultaneously when the vertical height of water surface distance water pump is excessive when water occurring falling, realize normally drawing water, accommodation is big.

Fig. 1 is the utility model overall structure schematic representation.

Embodiment:

Vacuum pump 9 is driven by motor 10, centrifugal suction pump 11 is by another motoring, the switch motion of two motors is by control circuit 12 controls, the induction contact 3 of liquid level relay places water outlet below in suction pump 11 pump housings, the other end of the sucking pipe 5 of vacuum pump 9 is connected to the top that aqueous vapor is isolated bucket 7, and be added with seal ring 6, prevent gas leakage, above the bottom air inlet of aqueous vapor isolation bucket 7, establish a sealing float 8, the 2nd, the blade of suction pump 11, its working procedure is as follows: during start, operator press start button, start vaccum pump motor 10, drive vacuum pump 9 work,, isolate the sucking pipe 5 of bucket 7 via aqueous vapor the air in air in the pipeline that draws water and suction pump 11 pump cases 1, sucking vacuum pump 9 backs discharges, degree of vacuum in the pipeline that draws water is increased gradually, and the low water level in the pipeline is under the effect of atmospheric pressure, rise gradually, when water is full of pump case 1, when rising to the induction contact 3 of level relay, induction contact is sent electrical signal at once, send into control circuit, vaccum pump motor 10 is closed in the control circuit action, starts centrifugal suction pump motor simultaneously, water pump blade 2 rotations, water is constantly extracted out by water outlet 4.When water enters aqueous vapor when isolating bucket 7, sealing float 8 is under the water buoyancy function, and rising combines with seal ring 6, seals the air-breathing mouth of pipe, can prevent that sealing is inhaled into vacuum pump 9.If in use, the vertical height that water surface distance water pump 11 occurs is excessive, make when water occurring falling in the pump process, vacuum pump 9 must start continuously, turn round simultaneously with water pump 11, so just can accomplish still can normally draw water when water pump and water surface perpendicular distance are big, vaccum pump motor 10 control switchs of this moment place often to open and get final product.

Claims

1, a kind of Combined water pump, comprise centrifugal water pump and aspirator, it is characterized in that: aspirator is a vacuum pump, vacuum pump and centrifugal water pump are driven respectively by two motors, the sucking pipe the other end of vacuum pump is installed in centrifugal water pump water outlet place, water outlet place in the pump case of water pump also is provided with the induction contact of a liquid level relay, and the signal output part of induction contact is connected to the input end of control circuit.

2, Combined water pump according to claim 1, it is characterized in that: an aqueous vapor is set between the water outlet of the sucking pipe of vacuum pump and centrifugal water pump isolates bucket, establish a sealing float above the bottom air inlet of aqueous vapor isolation bucket, sucking pipe and aqueous vapor are isolated a bucket joint, top and are added with seal ring.