CN208396960U - The vertical centrifugal pump of resistance to idle running - Google Patents
The vertical centrifugal pump of resistance to idle running Download PDFInfo
- Publication number
- CN208396960U CN208396960U CN201820925589.XU CN201820925589U CN208396960U CN 208396960 U CN208396960 U CN 208396960U CN 201820925589 U CN201820925589 U CN 201820925589U CN 208396960 U CN208396960 U CN 208396960U
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- Prior art keywords
- pump housing
- resistance
- impeller
- annular
- idle running
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Abstract
The utility model relates to a kind of centrifugal pump more particularly to a kind of vertical centrifugal pumps of resistance to idle running；Including the front cover successively installed, the pump housing and motor, the impeller stem being set in motor mandrel is installed in the pump housing, impeller and the impeller lock nut being fixed on impeller in impeller stem, the centre of front cover is equipped with inlet opening, annular groove is offered on the contact surface of front cover and the pump housing, the contact surface of the pump housing and front cover is equipped with the annular protrusion that can be inserted into annular groove bottom, the contact surface of annular groove and annular protrusion includes interior contact surface, contact bottom surface and external contacting surface, external contacting surface is equipped with internal screw thread, annular protrusion is equipped with external screw thread compatible with internal screw thread, the bottom of annular protrusion offers annular seal groove, it further include the O-ring seal for being embedded in annular seal groove；Resistance to idle running vertical centrifugal pump provided by the utility model is a kind of to facilitate installation and maintenance, be conducive to improve production efficiency, and the vertical centrifugal pump improved service life.
Description
Technical field
The utility model relates to a kind of centrifugation pump technical field more particularly to a kind of vertical centrifugal pumps of resistance to idle running.
Background technique
It is well known that centrifugal pump is mainly used for industrial circle as conveying device, including it is used for corrosive liquid, circulation or defeated
Send, plating, chemical industry, leather, dyeing and finishing wastewater, acid and alkali-resistance, the vertical pump of resistance to idle running in exhaust-gas treatment industry, it is traditional it is vertical from
In heart pump, the connection type between front cover and the pump housing includes left-hand thread, circlip and screw etc., comparatively laborious during installation, and zero
Accessory is more, and equipment is threadedly coupled after a period of use is easy to be stuck in harsh environment, maintenance not easy to disassemble.
Utility model content
In order to solve the above technical problems, the purpose of the utility model is to provide one kind only need screw threads for fastening, facilitate installation with
Maintenance improves production efficiency, and the vertical centrifugal pump of resistance to idle running that can be improved service life.
The utility model relates to a kind of vertical centrifugal pumps of resistance to idle running, described including the front cover, the pump housing and motor successively installed
The impeller stem being set in the motor mandrel, impeller are installed in the pump housing and the impeller is fixed in the impeller stem
Impeller lock nut, the centre of the front cover is equipped with inlet opening, offers annular groove on the contact surface of the front cover and the pump housing, institute
The contact surface for stating the pump housing and front cover is equipped with the annular protrusion that can be inserted into the annular groove bottom, the annular groove and annular
The contact surface of protrusion includes interior contact surface, contact bottom surface and external contacting surface, and the external contacting surface is equipped with internal screw thread, the annular
Protrusion is equipped with external screw thread compatible with the internal screw thread, and the bottom of the annular protrusion offers annular seal groove, also wraps
Include the O-ring seal for being embedded in the annular seal groove.
Further, the O-ring seal sealed material is nitrile rubber O-ring seal or fluororubber O-type sealing ring.
Further, the pump housing is set as the polypropylene pump housing or the Kynoar pump housing.
Further, spillway hole is offered on the pump housing.
Further, the axle envelope seat between the pump housing and motor is ceramic axle envelope seat.
Further, the length of the internal screw thread is equal to the height of the external contacting surface on the annular groove.
According to the above aspect of the present invention, the utility model at least has the following advantages:
1, front cover uses internal screw thread fastening means, cooperates O ring leakproofness and operability more preferable；
2, quick and easy in terms of installation and maintenance, it is easy installation and disassembly；
3, structure is simple, does not need clip and fastened by screw.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of the vertical centrifugal pump of resistance to idle running of the utility model；
Fig. 2 is the partial enlarged view in the portion I in the vertical centrifugal pump of resistance to idle running of the utility model.
The meaning of each appended drawing reference is as follows in figure.
1 front cover, 2 pump housing
3 motor, 4 motor mandrel
5 impeller stem, 6 impeller
7 impeller lock nut, 8 inlet opening
9 annular groove, 10 annular protrusion
11 O-ring seal, 12 spillway hole
13 axle envelope seats
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to Fig. 1 and Fig. 2, the centrifugal pump of one preferred embodiment of the utility model, including front cover 1, the pump housing 2 successively installed
With motor 3, the impeller stem 5 being set in motor mandrel 4, impeller 6 are installed in the pump housing 2 and impeller 6 is fixed on impeller stem 5
On impeller lock nut 7, the centre of front cover 1 is equipped with inlet opening 8, offers annular groove 9 on the contact surface of front cover 1 and the pump housing 2, pump
The contact surface of body 2 and front cover 1 is equipped with the annular protrusion 10 that can be inserted into 9 bottom of annular groove, annular groove 9 and annular protrusion 10
Contact surface include interior contact surface, contact bottom surface and external contacting surface, external contacting surface is equipped with internal screw thread, and annular protrusion 10 is equipped with
External screw thread compatible with internal screw thread, the bottom of annular protrusion 10 offer annular seal groove, further include insertion annular seal groove
O-ring seal 11.
Original front cover 1 and the pump housing 2 are used internal screw thread fastening side by resistance to idle running vertical centrifugal pump provided by the utility model
Formula connection, front cover 1 are internal screw thread, and the pump housing 2 is external screw thread, O-ring seal 11 are equipped between front cover 1 and the pump housing 2, in this way, installing
It is quick and easy, easy to operate with maintenance aspect, and cooperate O ring better tightness between front cover 1 and the pump housing 2, it is more convenient installation
And disassembly.
The pump housing 2 is penetrated into medium in order to prevent and guarantees that the motor mandrel 4 in motor 3 is not corroded, O-ring seal 11 is
Nitrile rubber O-ring seal or fluororubber O-type sealing ring.
In order to improve the resistance to acid and alkali of resistance to idle running vertical centrifugal pump, the pump housing 2 is the polypropylene pump housing 2 or the Kynoar pump housing
2；In this way, resistance to idle running vertical centrifugal pump can also be used for the industry that medium is soda acid.
Water level is excessively high in order to prevent, and spillway hole 12 is offered on the pump housing 2.
In order to improve the resistance to acid and alkali of resistance to idle running vertical centrifugal pump, prevent the leakage that corrosion causes, the pump housing 2 and motor
Axle envelope seat 13 between 3 is ceramic axle envelope seat.
Equipment is threadedly coupled after a period of use is easy to be stuck in harsh environment in order to prevent, dimension not easy to disassemble
It repairs, the length of internal screw thread is equal to the height of the external contacting surface on annular groove 9.
Above are merely preferred embodiments of the utility model, it is not intended to limit the utility model, it is noted that for
For those skilled in the art, without deviating from the technical principle of the utility model, if can also make
Dry improvement and modification, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of vertical centrifugal pump of resistance to idle running is equipped in the pump housing including the front cover, the pump housing and motor successively installed and is set in electricity
Impeller stem, impeller in machine mandrel and impeller being fixed on the impeller lock nut in impeller stem, the centre of front cover is equipped with inlet opening,
It is characterized by: offering annular groove on the contact surface of the front cover and the pump housing, set on the contact surface of the pump housing and front cover
There is an annular protrusion that can be inserted into the annular groove bottom, the contact surface of the annular groove and annular protrusion includes interior contact
Face, contact bottom surface and external contacting surface, the external contacting surface are equipped with internal screw thread, and the annular protrusion is equipped with and the internal screw thread
The bottom of compatible external screw thread, the annular protrusion offers annular seal groove, further includes the O for being embedded in the annular seal groove
Type sealing ring.
2. the vertical centrifugal pump of resistance to idle running according to claim 1, it is characterised in that: the O-ring seal sealed material is
Nitrile rubber O-ring seal or fluororubber O-type sealing ring.
3. the vertical centrifugal pump of resistance to idle running according to claim 1, it is characterised in that: the pump housing be set as the polypropylene pump housing or
The Kynoar pump housing.
4. the vertical centrifugal pump of resistance to idle running according to claim 1, it is characterised in that: offer spillway hole on the pump housing.
5. the vertical centrifugal pump of resistance to idle running according to claim 1, it is characterised in that: the axle envelope between the pump housing and motor
Seat is ceramic axle envelope seat.
6. the vertical centrifugal pump of resistance to idle running according to claim 1, it is characterised in that: the length of the internal screw thread is equal to described
The height of the external contacting surface on annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820925589.XU CN208396960U (en) | 2018-06-14 | 2018-06-14 | The vertical centrifugal pump of resistance to idle running |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820925589.XU CN208396960U (en) | 2018-06-14 | 2018-06-14 | The vertical centrifugal pump of resistance to idle running |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396960U true CN208396960U (en) | 2019-01-18 |
Family
ID=65132357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820925589.XU Active CN208396960U (en) | 2018-06-14 | 2018-06-14 | The vertical centrifugal pump of resistance to idle running |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208396960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188776A (en) * | 2020-02-13 | 2020-05-22 | 上海琼森流体设备有限公司 | Electromagnetic drive pump and drive method thereof |
| CN111197579A (en) * | 2020-03-06 | 2020-05-26 | 日益电机股份有限公司 | Anti-burst vertical pump |
-
2018
- 2018-06-14 CN CN201820925589.XU patent/CN208396960U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188776A (en) * | 2020-02-13 | 2020-05-22 | 上海琼森流体设备有限公司 | Electromagnetic drive pump and drive method thereof |
| CN111197579A (en) * | 2020-03-06 | 2020-05-26 | 日益电机股份有限公司 | Anti-burst vertical pump |
| CN111197579B (en) * | 2020-03-06 | 2021-02-02 | 日益电机股份有限公司 | Anti-burst vertical pump |
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