CN205478353U - Carry big viscosity and viscosity to change canned motor pump of great medium - Google Patents
Carry big viscosity and viscosity to change canned motor pump of great medium Download PDFInfo
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- CN205478353U CN205478353U CN201620132216.8U CN201620132216U CN205478353U CN 205478353 U CN205478353 U CN 205478353U CN 201620132216 U CN201620132216 U CN 201620132216U CN 205478353 U CN205478353 U CN 205478353U
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Abstract
Carry big viscosity and viscosity to change canned motor pump of great medium, including the pump body and motor, connect through the linkage segment between the pump body and the motor, the shell rear end of motor has connected gradually the rear bearing body and back lid, the pump shaft passes through the bearing to be supported on the linkage segment and the rear bearing body, install the inner chamber that is located the pump body at the impeller of pump shaft front end, motor internally mounted forms the medium ante -chamber in the front side of the epaxial rotor of pump, the connection sector hole of medium ante -chamber on through the linkage segment is linked together with the inner chamber of the pump body at impeller place, form back medium back cavity between the rear side of rotor and the rear bearing body, the export of medium on the pump body and medium back cavity flow back the hole through extrinsic cycle pipe and medium on the rear bearing body and are linked together, there is the shaft hole on the pump shaft, medium inlet on the shaft hole front end and the pump body is linked together, shaft hole rear end and medium backward flow hole are linked together, the hole of motor section's stator and the equal insert of the surface of rotor have by corrosion -resistant, the housing that nonmagnetic material made. The automatic balance axial force, safe and reliable.
Description
Technical field
This utility model relates to a kind of pump, a kind of canned motor pump carrying big viscosity and the bigger medium of viscosity B coefficent.
Background technology
In chemical engineering industry production process, there is big viscous media viscosity with temperature in course of conveying to change greatly thus affect the unbalanced situation of axial force, and Ordinary Centrifugal Pumps is the most often because axial force change causes the reasons such as imbalance cannot ensure persistently production process reliably.
Summary of the invention
The purpose of this utility model be to provide a kind of be in operation adjustable axle to power, ensure pump operation safe and reliable carry big viscosity and the canned motor pump of the bigger medium of viscosity B coefficent, overcome the deficiencies in the prior art.
nullThe big viscosity of conveying of the present utility model and the canned motor pump of the bigger medium of viscosity B coefficent，Including the pump housing and motor，Connected by linkage section between the pump housing and motor，The outer casing back of motor is connected with rear bearing body and bonnet in turn，Pump shaft passes through bearings on linkage section and rear bearing body，The impeller being arranged on pump shaft front end is positioned at the inner chamber of the pump housing，The front side of the rotor that motor internal is arranged on pump shaft forms medium ante-chamber，Medium ante-chamber is by the intracavity inter-connection connecting sector hole and the pump housing at impeller place on linkage section，Medium back cavity after being formed between rear side and the rear bearing body of rotor，Media outlet on the pump housing is connected by the medium back flow hole on outer circulating tube and rear bearing body with medium back cavity，It is machined with axis hole at described pump spindle center，The front end of axis hole is connected with the medium inlet on the pump housing，The rear end of axis hole is connected with medium back flow hole，The diameter of axis hole front portion is less than the diameter at rear portion，The endoporus of the stator of motor part and the outer surface of rotor are all installed with by corrosion-resistant、The housing that nonmagnetic substance is made.
The rear end of described rear bearing body connects rear bearing body ring, the follower head of pump shaft is provided with balancing frame, being provided with balance disk ring on balancing frame, the gap that medium back flow hole by rear bearing body ring and balances between disk ring, the rear cover cavity inside bonnet are connected with the rear end of axis hole.
The rear end of described pump shaft connects end cap, is provided with end cap hole on end cap, and axis hole is by end cap hole and bonnet intracavity inter-connection.
The big viscosity of conveying of the present utility model and the canned motor pump of the bigger medium of viscosity B coefficent, be in operation can adjustable axle to power, ensure pump operation safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model detailed description of the invention.
Detailed description of the invention
As shown in Figure 1: 1 is the pump housing, has motor at the rear portion of the pump housing 1, being connected by linkage section 3 between the pump housing 1 and motor, the outer casing back of motor is connected with rear bearing body 9 and bonnet 11 in turn, and pump shaft 4 passes through bearings on linkage section 3 and rear bearing body 9.The impeller 2 being arranged on pump shaft 4 front end is positioned at the inner chamber of the pump housing 1, and the front side of the rotor 8 that motor internal is arranged on pump shaft 4 forms medium ante-chamber 20, and medium ante-chamber 20 is by the intracavity inter-connection connecting sector hole 21 and the pump housing 1 at impeller 2 place on linkage section 3.Medium back cavity 18 after being formed between rear side and the rear bearing body 9 of rotor 8, the media outlet 22 on the pump housing 1 is connected by the medium back flow hole 16 on outer circulating tube 19 and rear bearing body 9 with medium back cavity 18.Pump shaft 4 center is machined with axis hole 5, and the front end of axis hole 5 is connected with the medium inlet 23 on the pump housing 1, and the rear end of axis hole 5 is connected with medium back flow hole 16, and the diameter of axis hole 5 front portion is less than the diameter at rear portion, i.e. axis hole is formed step-like., the endoporus of the stator 6 of motor part and the outer surface of rotor 8 are all installed with the housing being made up of corrosion-resistant, nonmagnetic substance.
The rear end of rear bearing body 9 connects rear bearing body ring 10, the follower head of pump shaft 4 is provided with balancing frame 12, being provided with balance disk ring 17 on balancing frame 12, the gap that medium back flow hole 16 by rear bearing body ring 10 and balances between disk ring 17, the rear cover cavity 15 inside bonnet 11 are connected with the rear end of axis hole 5.
The rear end of pump shaft 4 connects end cap 13, is provided with end cap hole 14 on end cap 13, and axis hole 5 is connected with rear cover cavity 15 by end cap hole 14.
This utility model uses particular design, stationary seal, has safety non-leakage, compact conformation, automatically balancing axial force, the feature such as safe and reliable.Pump and group of motors are into a single integrated structure, and the endoporus of motor stator 6 and rotor 8 outer surface are all installed with the housing being made up of corrosion-resistant, nonmagnetic substance, and the corrosion of medium avoided by housing protection motor winding and rotor.Medium medium inlet 23 from the pump housing 1 sucks, after impeller 2 pressurizes, discharged by the media outlet 22 on the pump housing 1, a portion medium is further separated into rear bearing body 9 from media outlet 22, outer circulating tube 19, through medium back flow hole 16 enter stator 6 and, the gap 7 that formed between rotor 8 housing, then flow forward, through connecting sector hole 21, flow to medium inlet 23 by the balance pipe of impeller 2 again, play the effect to electric motor temperature reduction；Another part enters in axis hole 5 through medium back flow hole 16, rear bearing body ring 10 and the gap balanced between disk ring 17, end cap hole 14, and flows to the front end of pump shaft 4, enters medium inlet 23, is formed and circulates thereby balancing axial thrust.
Claims (3)
- null1. one kind carries big viscosity and the canned motor pump of the bigger medium of viscosity B coefficent，Including the pump housing (1) and motor，Connected by linkage section (3) between the pump housing (1) and motor，The outer casing back of motor is connected with rear bearing body (9) and bonnet (11) in turn，Pump shaft (4) passes through bearings on linkage section (3) and rear bearing body (9)，The impeller (2) being arranged on pump shaft (4) front end is positioned at the inner chamber of the pump housing (1)，The front side of the rotor (8) that motor internal is arranged on pump shaft (4) forms medium ante-chamber (20)，Medium ante-chamber (20) is by the intracavity inter-connection of the connection sector hole (21) on linkage section (3) with the pump housing (1) at impeller (2) place，Medium back cavity (18) after being formed between rear side and the rear bearing body (9) of rotor (8)，Media outlet (22) on the pump housing (1) is connected by the medium back flow hole (16) on outer circulating tube (19) and rear bearing body (9) with medium back cavity (18)，It is characterized in that: described pump shaft (4) center is machined with axis hole (5)，The front end of axis hole (5) is connected with the medium inlet (23) on the pump housing (1)，The rear end of axis hole (5) is connected with medium back flow hole (16)，The diameter of axis hole (5) front portion is less than the diameter at rear portion，The endoporus of the stator (6) of motor part and the outer surface of rotor (8) are all installed with by corrosion-resistant、The housing that nonmagnetic substance is made.
- The big viscosity of conveying the most according to claim 1 and the canned motor pump of the bigger medium of viscosity B coefficent, it is held to levy and is: the rear end of described rear bearing body (9) connects rear bearing body ring (10), the follower head of pump shaft (4) is provided with balancing frame (12), being provided with balance disk ring (17) on balancing frame (12), medium back flow hole (16) are connected with the rear end of axis hole (5) by the rear cover cavity (15) in the gap between rear bearing body ring (10) and balance disk ring (17), bonnet (11) inner side.
- The big viscosity of conveying the most according to claim 2 and the canned motor pump of the bigger medium of viscosity B coefficent, it is held to levy and is: the rear end of described pump shaft (4) connects end cap (13), being provided with end cap hole (14) on end cap (13), axis hole (5) is connected with rear cover cavity (15) by end cap hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620132216.8U CN205478353U (en) | 2016-02-22 | 2016-02-22 | Carry big viscosity and viscosity to change canned motor pump of great medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620132216.8U CN205478353U (en) | 2016-02-22 | 2016-02-22 | Carry big viscosity and viscosity to change canned motor pump of great medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478353U true CN205478353U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620132216.8U Active CN205478353U (en) | 2016-02-22 | 2016-02-22 | Carry big viscosity and viscosity to change canned motor pump of great medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050679A (en) * | 2016-06-22 | 2016-10-26 | 安徽天富泵阀有限公司 | Internal circulation type self-priming shield pump |
-
2016
- 2016-02-22 CN CN201620132216.8U patent/CN205478353U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050679A (en) * | 2016-06-22 | 2016-10-26 | 安徽天富泵阀有限公司 | Internal circulation type self-priming shield pump |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |