CN208396950U - A kind of self priming pump of idle running - Google Patents

Abstract

The utility model provides a kind of self priming pump of idle running, by being provided with cooling oil in pump mechanical seal water cooling chamber, and tank filler sleeve and drain oil are respectively arranged in cooling chamber cavity wall, when the scarce liquid of pump, which lacks liquid air, to be turned, the cooling oil that its machine envelope cooling chamber is packed into can cool down mechanical seal for a long time, lack liquid operation to prevent pumping scarce liquid, internal mechanical seal can generate higher frictional force during operating, the temperature of mechanical seal sealing surface and auxiliary rubber is caused to increase, mechanical seal is caused extremely to be easily damaged, water pump normally can not suct liquid from lower；And it is respectively provided with tank filler sleeve and drain oil in cooling chamber cavity wall, cooling oil can be regularly replaced, it is convenient and efficient；Even if water pump, which is emptied or lacks liquid from low water level negative pressure operating condition, lacks liquid operation, mechanical seal will not be quickly damaged.

Description

A kind of self priming pump of idle running

Technical field

The utility model belongs to self-priming pump technical field, and in particular to be it is a kind of with mechanical seal from cooling idle running Self priming pump.

Background technique

Water pump is the machinery for conveying liquid or being pressurized liquid, it transmits the mechanical energy of prime mover or other external energies To liquid, increase liquid energy, is mainly used to convey liquid, the output shaft of motor penetrates in the pump housing, to drive the pump housing Interior wheel rotation, to guarantee the operating of water pump；What it is due to water pump conveying is liquid, and the sealing performance of water pump is closed very much Strong, the seal form majority of traditional pump seal is mechanical seal, when water pump is when scarces liquid lacks liquid air and turns, inside Mechanical seal can generate higher frictional force during operating, cause the temperature of mechanical seal sealing surface and auxiliary rubber It increases, mechanical seal is caused extremely to be easily damaged, pump leaks, and can not suct liquid from lower negative pressure, can not be normal Work is run, in view of in this, this case is given birth to therefrom.

Summary of the invention

The purpose of this utility model is the deficiency for the above technology, provides a kind of compact-sized, and mechanical seal is voluntarily cold But the self priming pump of the good idle running of effect.

The utility model is achieved through the following technical solutions: a kind of self priming pump of idle running, mainly by the pump housing and A machine envelope cooling chamber (pump is formed between the connection of the motor form being connected by output shaft with the pump housing, the pump housing and motor Bracket)；One end of the output shaft is fixed on motor, and the other end is extend into the machine envelope cooling chamber of the pump housing, extend into pump housing machine It seals on the output shaft of cooling chamber and is connected with impeller, double seals seat, end seal and machine sealing end lid in turn；The Double End is close Envelope seat and machine sealing end lid by and tight screw be connected to fasten and install；The machine closes the outer wall of cooling chamber cavity and close to double The installation place of end face machine envelope offers tank filler sleeve and drain oil, and equipped with the valve switch for refueling and draining the oil, impeller can be selected and close Formula impeller or half-opened impeller；Pump Suction inlet be equipped with check valve, in negative pressure operating condition in use, at pipeline suction inlet without Bottom valve need to be installed, liquid can also be sucted.

The beneficial effects of the utility model embodiment is: compared with prior art, the utility model passes through on output shaft Double seals seat, end seal and the machine sealing end lid of installation, play the role of sealing, anti-aging, sealing in the pump housing It is functional；It is provided with cooling oil in machine envelope cooling chamber cavity, and is respectively arranged with tank filler sleeve and drain oil on cavity wall, when It pumps when lacking liquid and lack liquid air and turn, the cooling oil being packed into can be cooled down and be lubricated to mechanical seal, lack liquid air to prevent the scarce liquid of pump Raw frictional force of changing the line of production makes the raising of mechanical seal temperature cause to damage, and pump leaks；Design has oiling on cooling chamber cavity wall Hole and drain oil, and equipped with the valve switch for refueling and draining the oil, the more convenient and quicker for allowing the work of replacement cooling oil to become guarantees cold Oily clean and cleaning, greatly prolongs the service life of mechanical seal.

Detailed description of the invention

The utility model is described in detail with reference to the accompanying drawing.

FIG. 1 is a schematic structural view of the utility model.

Following is the specific name respectively identified in figure: 1, motor；2, machine sealing end lid；3, tank filler sleeve；4, machine seals cooling chamber；5, The pump housing；6, it exports；7, import；8, impeller；9, double seals seat；10, drain oil；11 and tight screw；12, output shaft；13, End seal.

Specific embodiment

As shown in Figure 1, a kind of self priming pump of idle running, is by the pump housing 5 and the electricity being connected by output shaft 12 with the pump housing 5 Machine 1 forms, and a machine envelope cooling chamber (pump bracket) is formed between the pump housing 5 and the connection of motor 1；On the pump housing 5 respectively It is provided with liquid-inlet 7 and liquid outlet 6；One end of the output shaft 12 is fixed on motor 1, and the other end extend into the pump housing 5 Machine seals in cooling chamber 4, and extend on the output shaft 12 of pump housing machine envelope cooling chamber 4 and be connected with impeller 8, double seals in turn Seat 9, end seal 13 and machine block lid 2；It is filled with cooling oil in the machine envelope cooling chamber 4 of the pump housing 5, when the pump housing dallies When, cooling oil plays cooling effect to impeller and other internal components installed；The double seals seat 9 and machine block lid 2 It is connected by simultaneously tight screw 11 and fastens installation；The output shaft 12 protrudes into the machine envelope outer wall of cooling chamber 4 of the pump housing 5 and close The installation place of end seal 13 offers tank filler sleeve 3 and drain oil 10, and cooling oil is packed into out of tank filler sleeve 3 respectively, needs to put When machine seals the cooling oil in cooling chamber 4 out, directly released from drain oil 10.

According to the cleannes of liquid, solid content etc., double shrouded wheel or half-opened impeller is can be selected in impeller, makes this product can Multi-purpose with a pump, purposes is very extensive；Pump Suction inlet is equipped with check valve, in use, pipeline suction inlet in negative pressure operating condition Place can also suct liquid without installing bottom valve.

Claims (1)

1. a kind of self priming pump of idle running, special mainly by the pump housing and the motor form being connected by output shaft with the pump housing Sign is: forming a machine between its pump housing and the connection of motor and seals cooling chamber；One end of the output shaft is fixed on motor, separately One end is extend into the machine envelope cooling chamber of the pump housing, is extend on the output shaft of pump housing machine envelope cooling chamber and is connected with impeller, double in turn End face seal seat, end seal and machine sealing end lid；The double seals seat blocks lid with machine and is connected tightly by simultaneously tight screw Guan County's dress；The machine seals the outer wall of cooling chamber cavity and offers tank filler sleeve close to the installation place of end seal and drain the oil Hole.