CN208870793U

CN208870793U - A kind of follow-on centrifugal pump

Info

Publication number: CN208870793U
Application number: CN201821723085.6U
Authority: CN
Inventors: 侯明君
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-24
Filing date: 2018-10-24
Publication date: 2019-05-17
Anticipated expiration: 2028-10-24

Abstract

The utility model relates to water pump technologies, disclose a kind of follow-on centrifugal pump, including shell A, axle bed, support；The left side lower end of the shell A and the right end of axle bed are bolted to connection, and are fixedly connected on the downside of the upper end of support and shell A；The liquid that liquid storage chamber by the way that large volume is arranged can facilitate storage more, can compensate the liquid leaked in impeller cavity in time, guarantee the water for having sufficient in centrifugal pump；The height of liquid storage chamber is higher than impeller cavity, and the liquid in liquid storage chamber can automatically flow into impeller cavity, can effectively prevent generating air bubble in impeller cavity and flowing water is unsmooth；Shell A is bolted to connection with shell B, convenient replace and safeguard centrifugal pump to impeller；The utility model have the characteristics that it is easy to use, water amount of seepage can be supplemented, is simple and compact for structure, the liquid leaked in the impeller cavity of centrifugal pump can be compensated, guarantee the water for having sufficient in centrifugal pump, improve the service life of centrifugal pump.

Description

A kind of follow-on centrifugal pump

Technical field

The utility model relates to water pump technology, specially a kind of follow-on centrifugal pump.

Background technique

Centrifugal pump refers to the centrifugal force by generating when impeller rotation to convey the pump of liquid, and centrifugal pump is before activation, it is necessary to Make then to start motor full of water in pump case and suction hose, pump shaft impeller and water made to do high speed rotary motion, water occur from Heart movement, is thrown toward impeller outer edge, and the runner through volute pump case flows into the pressure pipe road of water pump；When the working depth of centrifugal pump is high Liquid in liquid level, when reusing centrifugal pump after extended periods, due to the relationship of gravitation and leakproofness, in centrifugal pump Easy to leak is lost, and because the pump housing lacks liquid idle running when being centrifuged pump work, is easy to cause centrifugal pump to burn out, when the liquid in centrifugal pump When the less generation air bubble of Loss by leaching, erosion easily is generated to impeller when being centrifuged pump work；In conclusion the liquid in centrifugal pump After Loss by leaching generates cavity, there are larger security risk when being centrifuged pump work, production and living are influenced.

Utility model content

The purpose of the utility model is to provide a kind of follow-on centrifugal pump, have it is easy to use, can supplement water amount of seepage, Feature simple and compact for structure can compensate the liquid leaked in the impeller cavity of centrifugal pump, guarantee there is abundance in centrifugal pump Water, improve the service life of centrifugal pump, solve deficiency in the prior art.

To achieve the above object, the utility model provides the following technical solutions: a kind of follow-on centrifugal pump, including shell A, axle bed, support；The left side lower end of the shell A and the right end of axle bed are bolted to connection, the upper end of support and shell A Downside be fixedly connected；

The shell A is formed using iron casting, and the left upper part of shell A is inlet, and the left end of inlet is provided with Ring flange, the right end of inlet are provided with liquid storage chamber, the generally rectangular-shaped cavity of liquid storage chamber, and liquid storage chamber passes through interface channel and leaf It is connected to and in communication on the right side of wheel chamber, the upper end of impeller cavity is exhaust chamber, and the upper end of impeller cavity is connected to and in communication with exhaust chamber, drain The upper end of chamber is connected to and in communication with liquid outlet, and the upper end of liquid outlet is provided with ring flange；

The axle bed includes impeller, shell B, pump shaft, bearing, capping；The shell B is cylinder cone cylinder shape, the right side of shell B End is fixedly connected by bolt with the shell A at impeller cavity, and bearing is two, is respectively nested in the left end of shell B inner wall in Between position, capping is fixedly connected by bolt with the left end shell B, and pump shaft, which sequentially passes through, to be covered and two bearings, and the one of pump shaft End is goed deep into impeller cavity, and is fixedly connected with impeller in the axial end of pump shaft, and the shaft end of pump shaft is provided with impeller junction Mechanical seal.

The liquid that liquid storage chamber by the way that large volume is arranged can facilitate storage more, can compensate the liquid leaked in impeller cavity in time Body guarantees the water for having sufficient in centrifugal pump；The height of liquid storage chamber is higher than impeller cavity, and the liquid in liquid storage chamber can automatically flow into leaf It takes turns intracavitary, can effectively prevent generating air bubble in impeller cavity and flowing water is unsmooth；Shell A is bolted to connection with shell B, side Just impeller replace and safeguard centrifugal pump；The utility model have it is easy to use, water amount of seepage, structure can be supplemented Simple and compact feature can compensate the liquid leaked in the impeller cavity of centrifugal pump, guarantee the water for having sufficient in centrifugal pump Amount, improves the service life of centrifugal pump.

Further, liquid injection port is offered at the liquid storage chamber on the shell A of upper end, the liquid injection port inward turning is screwed with sealing Corking.

It can be facilitated by opening up liquid injection port to liquid storage chamber and impeller cavity progress fluid injection, the sealing corking of setting can be to liquid injection port It is sealed, prevents gas leakage.

Further, slag-drip opening is offered at the impeller cavity on the shell of lower end, the slag-drip opening inward turning is screwed with sealing Corking.

By the way that slag-drip opening is arranged, the impurity precipitated in liquid storage chamber and impeller cavity can be excluded, reduce impurity to impeller Slag-drip opening can be sealed with the sealing corking of the erosion of shell A, setting, prevent liquid leakage.

Further, the position that the shell A and shell B, shell B and capping are in contact after connecting is provided with gasket Circle.

By the way that seal washer is arranged, the generation of connecting portion sepage phenomenon can be prevented, liquid storage chamber and impeller intraluminal fluid are prevented The leakage of body.

Part is not directed in the device to be the same as those in the prior art or can be realized by using the prior art.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon.

Fig. 1 is a kind of overall structure half-section diagram of follow-on centrifugal pump of the utility model；

Fig. 2 is the shell and seat structure half-section diagram of a kind of follow-on centrifugal pump of the utility model；

Fig. 3 is a kind of shaft base structure half-section diagram of follow-on centrifugal pump of the utility model.

Figure label explanation: 1 it is shell A, 11 is inlet, 12 is liquid storage chamber, 13 is liquid outlet, 14 is exhaust chamber, 15 It is axle bed for impeller cavity, 2,21 be impeller, 22 be shell B, 23 be pump shaft, 24 be bearing, 25 be capping, 3 be support, 101 is Sealing corking, 102 are slag-drip opening.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Please refer to Fig. 1-3: a kind of follow-on centrifugal pump, including shell A1, axle bed 2, support 3；A left side of the shell A1 Side lower end and the right end of axle bed 2 are bolted to connection, and are fixedly connected on the downside of the upper end of support 3 and shell A1；

The shell A1 is formed using iron casting, and the left upper part of shell A1 is inlet 11, the left end of inlet 11 It is provided with ring flange, the right end of inlet 11 is provided with liquid storage chamber 12, the generally rectangular-shaped cavity of liquid storage chamber 12, and liquid storage chamber 12 is led to It crosses on the right side of interface channel and impeller cavity 15 and is connected to and in communication with, the upper end of impeller cavity 15 is exhaust chamber 14, and the upper end of impeller cavity 15 It is connected to and in communication with exhaust chamber 14, the upper end of exhaust chamber 14 is connected to and in communication with liquid outlet 13, and the upper end of liquid outlet 13 is provided with method Blue disk；

The axle bed 2 includes impeller 21, shell B22, pump shaft 23, bearing 24, capping 25；The shell B22 is cylinder cone The right end of tubular, shell B22 is fixedly connected by bolt with the shell A1 at impeller cavity 15, and bearing 24 is two, nested respectively In the left end and middle position of shell B22 inner wall, capping 25 is fixedly connected by bolt with the left end shell B22, and pump shaft 23 is successively Across capping 25 and two bearings 24, and one end of pump shaft 23 is goed deep into impeller cavity 15, and fixes in the axial end of pump shaft 23 Impeller 21 is connected, and the shaft end of pump shaft 23 and 21 junction of impeller are provided with mechanical seal.

The liquid that liquid storage chamber 12 by the way that large volume is arranged can facilitate storage more can compensate leakage in impeller cavity 15 in time Liquid guarantees the water for having sufficient in centrifugal pump；The height of liquid storage chamber 12 is higher than impeller cavity 15, and the liquid in liquid storage chamber 12 can be certainly It is dynamic to flow into impeller cavity 15, it can effectively prevent generating air bubble in impeller cavity 15 and flowing water is unsmooth；Shell A1 passes through with shell B22 Bolt is fixedly connected, convenient replace and safeguard centrifugal pump to impeller 21；The utility model have it is easy to use, can Water amount of seepage, feature simple and compact for structure are supplemented, the liquid that can be leaked in the impeller cavity 15 to centrifugal pump compensates, and guarantees There is sufficient water in centrifugal pump, improves the service life of centrifugal pump.

Liquid injection port is offered at the liquid storage chamber 12 on the shell A1 of upper end, the liquid injection port inward turning is screwed with sealing corking 101；It can be facilitated by opening up liquid injection port to liquid storage chamber 12 and the progress fluid injection of impeller cavity 15, the sealing corking 101 of setting can be to note Liquid mouth is sealed, and prevents gas leakage.

Slag-drip opening 102 is offered at the impeller cavity 15 on the shell of lower end, 102 inward turning of slag-drip opening is screwed with sealing-plug Lid 101；By the way that slag-drip opening 102 is arranged, the impurity precipitated in liquid storage chamber 12 and impeller cavity 15 can be excluded, reduce impurity pair The sealing corking 101 of the erosion of impeller 21 and shell A1, setting can be sealed slag-drip opening 102, prevent liquid leakage.

The position that the shell A1 is in contact after connecting with shell B22, shell B22 with capping 25 is provided with seal washer； By the way that seal washer is arranged, the generation of connecting portion sepage phenomenon can be prevented, liquid in liquid storage chamber 12 and impeller cavity 15 is prevented Leakage.

Working principle of the utility model is: support 3 is fixed on coagulation soil matrix using bolt by follow-on centrifugal pump On seat, motor rotary shaft is connect with pump shaft 23 using shaft coupling, by external pipe using bolt respectively with inlet 11, go out liquid Ring flange on mouthfuls 13 is fixedly connected, and the sealing corking 101 at liquid storage chamber 12 is backed out, and water is filled after liquid storage chamber 12 again close Blocking lid 101 is tightened, and after starting motor, 23 impeller of pump shaft, 21 high speed rotation, impeller 21 and water do high speed rotary motion, Centrifugal movement occurs for water, is thrown toward 21 outer rim of impeller, and the upper end through impeller cavity 15 flows into exhaust chamber 14 and passes through liquid outlet 13 Discharge, during this period, the water in liquid storage chamber 12 is flowed by suction into impeller 21, and external water source is timely entered through inlet 11 In liquid storage chamber 12；After closing motor, which stops working, when the long period when not in use, because of leakproofness and gravitation Effect, water in impeller cavity 15 can Loss by leaching, while the water in liquid storage chamber 12 water being lost in impeller cavity 15 can be carried out and When supplement, guarantee the water for having sufficient in centrifugal pump；When the centrifugal pump after using for a longer period when not used, can will be under impeller cavity 15 The sealing corking 101 at end unscrew by impeller cavity 15 impurity and water discharge, to reduce erosion to impeller 21.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms；Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein, and should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims

1. a kind of follow-on centrifugal pump, it is characterised in that: including shell A, axle bed, support；The left side lower end of the shell A with The right end of axle bed is bolted to connection, and is fixedly connected on the downside of the upper end of support and shell A；

The shell A is formed using iron casting, and the left upper part of shell A is inlet, and the left end of inlet is provided with flange Disk, the right end of inlet are provided with liquid storage chamber, the generally rectangular-shaped cavity of liquid storage chamber, and liquid storage chamber passes through interface channel and impeller cavity Right side is connected to and in communication with, and the upper end of impeller cavity is exhaust chamber, and the upper end of impeller cavity is connected to and in communication with exhaust chamber, exhaust chamber Upper end is connected to and in communication with liquid outlet, and the upper end of liquid outlet is provided with ring flange；

The axle bed includes impeller, shell B, pump shaft, bearing, capping；The shell B is cylinder cone cylinder shape, and the right end of shell B is logical It crosses bolt to be fixedly connected with the shell A at impeller cavity, bearing is two, is respectively nested in left end and the interposition of shell B inner wall It sets, capping is fixedly connected by bolt with the left end shell B, and pump shaft sequentially passes through capping and two bearings, and one end of pump shaft is deep Enter to impeller cavity, and is fixedly connected with impeller in the axial end of pump shaft, and the shaft end of pump shaft and impeller junction are provided with machinery Sealing.

2. follow-on centrifugal pump according to claim 1, it is characterised in that: at the liquid storage chamber on the shell A of upper end Liquid injection port is offered, the liquid injection port inward turning is screwed with sealing corking.

3. follow-on centrifugal pump according to claim 1, it is characterised in that: opened on the shell of lower end at the impeller cavity Equipped with slag-drip opening, the slag-drip opening inward turning is screwed with sealing corking.

4. follow-on centrifugal pump according to claim 1, it is characterised in that: the shell A and shell B, shell B and envelope The position being in contact after lid connection is provided with seal washer.