CN205446039U - Single -stage water circulation vacuum pump - Google Patents
Single -stage water circulation vacuum pump Download PDFInfo
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- CN205446039U CN205446039U CN201521111143.6U CN201521111143U CN205446039U CN 205446039 U CN205446039 U CN 205446039U CN 201521111143 U CN201521111143 U CN 201521111143U CN 205446039 U CN205446039 U CN 205446039U
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- pump
- impeller
- pump housing
- vacuum pump
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Abstract
The utility model relates to a single -stage water circulation vacuum pump, vacuum pump include preceding pump cover (010), flow guide disc (020), impeller (040), the pump body (030), mechanical seal (070) and motor (050), preceding pump cover (010) is connected with fixing bolt (105), fixes flow guide disc (020) the pump body (030) and in the middle of preceding pump cover (010), install impeller (040) motor (050) epaxial, the pump body (030) is fixed on the flange of motor (050), form eccentric structure, install flow guide disc (020) on the pump body (030), impeller (040) is in offset in the pump body (030) is 16.4mm. Through the design offset of impeller in the pump body, clearance between flow guide disc and the impeller, the position and the size of flow guide disc business turn over gas port for this model is in the very big performance of bleeding that improves of vacuum pump. This structural design can be through fine setting impeller and flow guide disc's clearance to satisfy obstructed customer's application request.
Description
Technical field
This utility model belongs to mechanical field, is specifically related to a kind of single-stage water-ring vacuum pump.
Background technology
Water-ring vacuum pump is called for short water ring pump, is widely used in vacuum sterilization, extrusion molding, beverage industry, food processing, vacuum drying, the fields such as vacuum filtration, owing in the course of the work, the compression process of gas is isothermal, so being not susceptible to danger when compression and suction explosion hazard gases, in addition water-ring vacuum pump also can extract the aqueous gas of dust-laden, but the most pumping speed of existing water-ring vacuum pump is less, and noise is big, and compare power consumption, service life is shorter.
Utility model content
In order to solve the problems referred to above that prior art exists, this utility model provides a kind of single-stage water-ring vacuum pump.
The technical scheme that this utility model is used is:
A kind of single-stage water-ring vacuum pump, it thes improvement is that: described vacuum pump includes front pump cover (010), flow guiding disc (020), impeller (040), the pump housing (030), mechanical seal (070) and motor (050)；
Described front pump cover (010) connects fixing bolt (105), is fixed on by flow guiding disc (020) in the middle of the described pump housing (030) and described front pump cover (010)；Described front pump cover (010) is provided with valve ball hole；
Described impeller (040) is arranged on the axle of described motor (050)；The described pump housing (030) is fixed on the flange of described motor (050), forms eccentric structure；Described flow guiding disc (020) is arranged on the described pump housing (030), and the described impeller (040) offset in the described pump housing (030) is 16.4mm.
Optionally, described impeller (040) is connected by axle with described motor (050), described impeller (040) is provided with set screw (090) with the junction of described motor (050) axle, is connected fixing to described impeller (040) and described motor (050) by nut (111).
Further, between the described pump housing (030) and described impeller (040), mechanical seal (070) is used the pump housing (030) inner chamber body to be sealed；The blade end of described impeller (040) and the pump housing (030) inside dimension highest order gap 1.2～1.5mm, with minimum the 33～35mm of the pump housing (030) inside dimension；Described mechanical seal (070) includes that stationary ring and rotating ring, described rotating ring are fixed on described impeller (040), and described stationary ring is fixed on the described pump housing (030).
Further, described impeller (040) right-hand member has individual axis hole, inner side coordinates installation with described motor (050) axle, the rotating ring of described mechanical seal (070) is installed in outside, and the stationary ring of described mechanical seal (070) is then arranged on the step that the pump housing (030) is internal.
Optionally, described flow guiding disc (020) and the contact surface of the described pump housing (030) use O (080) to seal.
Optionally, being provided with the valve ball (100) of 8 PTFE materials in described valve ball hole, described valve ball (100) change according to vacuum under vacuum pump duty carries out folding automatically.
Optionally, described front pump cover (010) outside is provided with two cavitation erosions protection device (112,113).
Further, between described set screw (090) and described motor (050) axle, equipped with butterfly spring pad (110).
Optionally, it is positioned at described motor (050) lower section and motor foot (060) is installed.
Optionally, described front pump cover (010) outside is provided with described water inlet (107), and water enters into the described pump housing (030) from described water inlet (107)；The described pump housing (030) bottom is provided with turnover tank, is entered the rubbing surface of mechanical seal (070) after the water rotation of the pump housing (030) inner chamber body by intake chamber.
The beneficial effects of the utility model are:
This utility model is by the gap between eccentric structure and impeller tip and the pump housing of design impeller so that vacuum pump, in the case of Same Efficieney is lost, improves the pumping efficiency of pump.
This utility model single-stage water-ring vacuum pump series, the vacuum pump of supporting 2.2KW motor, the entrance maximum speed of evacuation reaches 95m3/h；The vacuum pump of supporting 3KW motor, the entrance maximum speed of evacuation reaches 130m3/h；The vacuum pump of supporting 4KW motor, the entrance maximum speed of evacuation reaches 155m3/h；This pumping performance improves percentage more than 20 than the vacuum pump of numerous domestic brand, efficiency.
This utility model is on impeller, equipped with set screw.This set screw can adjust impeller position in the pump housing, is allowed to meet the gap of impeller and flow guiding disc between 0.15mm～0.18mm, every equipment uniformly stable speed of exhaust during to reach to produce.
Single-stage water-ring vacuum pump of the present utility model series, is provided with cavitation erosion protection device at two at front pump cover, and to meet the product use in different operating modes, the inside of protection vacuum pump is not damaged by cavitation erosion, also reduces the noise of vacuum pump.
This utility model is by design impeller offset in the pump housing, the gap between flow guiding disc and impeller, and the positions and dimensions of flow guiding disc air inlet/outlet so that this model is being greatly improved pumping performance at vacuum pump.And the design of this structure, can be by fine setting impeller and the gap of flow guiding disc, to meet the application requirement of obstructed client.
Accompanying drawing explanation
Fig. 1 is the single-stage water-ring vacuum pump sectional view structural representation that this utility model provides；
Fig. 2 is the single-stage water-ring vacuum pump left view structural representation that this utility model provides.
In figure: 010, front pump cover；020, flow guiding disc；030, the pump housing；040, impeller；050, motor；060, motor foot；070, mechanical seal；080, o type circle；090, set screw；100, valve ball；105, fixing bolt；107, water inlet；110, butterfly spring pad；111, nut；112, cavitation erosion protection device；113, cavitation erosion protection device.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
The following description and drawings illustrate specific embodiments of the present utility model fully, to enable those skilled in the art to put into practice them.Other embodiments can include structure, logic, electric, process and other change.Embodiment only represents possible change.Unless explicitly requested, otherwise individually assembly and function are optional, and the order operated can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The scope of embodiment of the present utility model includes the gamut of claims, and all obtainable equivalent of claims.In this article, these embodiments of the present utility model can be represented individually or generally with term " utility model ", this is only used to conveniently, if and in fact disclosed the utility model more than, it would be not meant to automatically limit this application and would conceive in the range of any single utility model or utility model.
As shown in Figure 1, this utility model provides a kind of single-stage water-ring vacuum pump sectional view, including front pump cover 010, flow guiding disc 020, impeller 040, the pump housing 030, mechanical seal 070 and motor 050, impeller 040 is contained on the axle of motor 050, the pump housing 030 is fixed on the flange of motor 050, forming eccentric structure, the described impeller 040 offset in the pump housing 030 is 16.4mm.The blade end of impeller 040 and the pump housing 030 inside dimension highest order gap 1.2～1.5mm, with minimum the 33～35mm of the pump housing 030 inside dimension.The most eccentric design, makes vacuum pump in the case of Same Efficieney is lost, greatly improves pumping efficiency.
Impeller 040 is connected by axle with motor 050, and impeller 040 is provided with set screw 090 with the junction of motor 050 axle, is connected fixing with motor 050 for impeller 040 by nut 111.
Motor foot 060 is installed below motor 050.
Flow guiding disc 020 is arranged on the pump housing 030, and impeller 040 can adjust between final impeller 040 and the gap 0.15mm to 0.18mm of flow guiding disc 020 by set screw 090, every equipment uniformly stable speed of exhaust during to reach to produce.
Between the pump housing 030 and impeller 040, mechanical seal 070 is used the pump housing 030 inner chamber body to be sealed；Mechanical seal 070 includes stationary ring and rotating ring, and rotating ring is fixed on impeller 040, and stationary ring is fixed on the pump housing 030.Impeller 040 right-hand member has an individual axis hole, inner side with coordinate installation on the axle of motor 050, the rotating ring of mechanical seal 070 is installed in outside, and the stationary ring of mechanical seal 070 is then arranged on the step within the pump housing 030.The design of this structure can avoid inside cavity working solution to touch axle, makes axle in use, particularly is difficult to be corroded when chemical field is applied.
Flow guiding disc 020, with on the contact surface of the pump housing 030, is provided with o type circle 080 and seals.To ensure that the hydraulic fluid in the pump housing 030 will not leak into outside.
Between flow guiding disc 020 and front pump cover 010, it is provided with the valve ball 100 of 8 PTFE materials.This valve ball can switch according to the vacuum pressure in pump chamber, to regulate the size of vacuum pump exhaust port, the most just compression ratio to vacuum pump, make vacuum pump can under each fixing compression ratio steady operation.
Front pump cover 010 connects fixing bolt 105, is fixed on by flow guiding disc 020 in the middle of the pump housing 030 and front pump cover 010.Being positioned at outside front pump cover 010 and be provided with water inlet 107, water can be entered into the pump housing 030 by water inlet 107.It is provided with turnover tank bottom the pump housing 030, is entered the rubbing surface of mechanical seal 070, landing temperature lubrication after the water rotation of the pump housing 030 inner chamber body by intake chamber, improve the service life of mechanical seal.Two cavitation erosions protection device 112,113 (as shown in Figure 2) it are provided with outside front pump cover.One when being in the limit or close to end vacuum above, pump occurs to use during cavitation erosion；Another is in cavitation erosion hole, can carry out cavitation erosion protection under the vaccum working condition of 400mbar, protects the inner body of vacuum pump by cavitation erosion, will not extend the service life of vacuum pump to greatest extent, also reduces the noise that cavitation erosion brings.
During work, working solution is by the water inlet 107 of front pump cover 010, enter in the pump housing 030 inner chamber body via flow guiding disc 020, due to eccentrically mounted after impeller 040 rotation, a centrifugal force can be produced, make working solution form the pendular ring of a uniform thickness, the top half of pendular ring is tangent with the wheel hub of impeller 040, the latter half contacts with the end of front impeller blade, now, defines several crescent-shaped spaces in loculus body.When impeller 040 starts to rotate, the crescent loculus on the left side knows from experience progressively change greatly, and pressure the most constantly lowers, when the pressure of little cavity space is less than porch pressure, according to gas pressure intensity equilibrium principle, the gas of porch will constantly be drawn into little cavity, and now vacuum pump is in breathing process.When blade 040 rotates to least significant end, and the air entry between flow guiding disc 020 has completely cut off.Time again toward right rotation, the volume of little cavity the most constantly reduces, and pressure the most constantly increases, and this process gas is in compression process, and when gas pressure reaches outlet pressure, the air vent of a gas compressed part progressively flow guiding disc 020 is discharged to the gas outlet of front pump cover 010.Just reach vacuum pump when pump continuously runs to inlet container or the purpose of pipeline continuous air extraction, made inlet container or pipeline reach the vacuum work state needed.
This utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but in its shape or structure, make any change; every have same as the present application or akin technical scheme, within all falling within protection domain of the present utility model.
Claims (10)
1. a single-stage water-ring vacuum pump, it is characterised in that: described vacuum pump includes front pump cover (010), flow guiding disc (020), impeller (040), the pump housing (030), mechanical seal (070) and motor (050)；
Described front pump cover (010) connects fixing bolt (105), is fixed on by flow guiding disc (020) in the middle of the described pump housing (030) and described front pump cover (010)；Described front pump cover (010) is provided with valve ball hole；
Described impeller (040) is arranged on the axle of described motor (050)；The described pump housing (030) is fixed on the flange of described motor (050), forms eccentric structure；Described flow guiding disc (020) is arranged on the described pump housing (030), and the described impeller (040) offset in the described pump housing (030) is 16.4mm.
A kind of single-stage water-ring vacuum pump the most according to claim 1, it is characterized in that: described impeller (040) is connected by axle with described motor (050), described impeller (040) is provided with set screw (090) with the junction of described motor (050) axle, is connected fixing to described impeller (040) and described motor (050) by nut (111).
A kind of single-stage water-ring vacuum pump the most according to claim 2, it is characterized in that: between the described pump housing (030) and described impeller (040), use mechanical seal (070) pump housing (030) inner chamber body to be sealed；The blade end of described impeller (040) and the pump housing (030) inside dimension highest order gap 1.2～1.5mm, with minimum the 33～35mm of the pump housing (030) inside dimension；Described mechanical seal (070) includes that stationary ring and rotating ring, described rotating ring are fixed on described impeller (040), and described stationary ring is fixed on the described pump housing (030).
A kind of single-stage water-ring vacuum pump the most according to claim 3, it is characterized in that: described impeller (040) right-hand member has individual axis hole, inner side coordinates installation with described motor (050) axle, the rotating ring of described mechanical seal (070) is installed in outside, and the stationary ring of described mechanical seal (070) is then arranged on the step that the pump housing (030) is internal.
A kind of single-stage water-ring vacuum pump the most according to claim 1, it is characterised in that: use O (080) to seal on described flow guiding disc (020) and the contact surface of the described pump housing (030).
A kind of single-stage water-ring vacuum pump the most according to claim 1, it is characterized in that: be provided with the valve ball (100) of 8 PTFE materials in described valve ball hole, described valve ball (100) change according to vacuum under vacuum pump duty carries out folding automatically.
A kind of single-stage water-ring vacuum pump the most according to claim 1, it is characterised in that: described front pump cover (010) outside is provided with two cavitation erosions protection device (112,113).
A kind of single-stage water-ring vacuum pump the most according to claim 2, it is characterised in that: between described set screw (090) and described motor (050) axle, equipped with butterfly spring pad (110).
A kind of single-stage water-ring vacuum pump the most according to claim 1, it is characterised in that: it is positioned at described motor (050) lower section and motor foot (060) is installed.
A kind of single-stage water-ring vacuum pump the most according to claim 1, it is characterized in that: described front pump cover (010) outside is provided with water inlet (107), and water enters into the described pump housing (030) from described water inlet (107)；The described pump housing (030) bottom is provided with turnover tank, is entered the rubbing surface of mechanical seal (070) after the water rotation of the pump housing (030) inner chamber body by intake chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111143.6U CN205446039U (en) | 2015-12-28 | 2015-12-28 | Single -stage water circulation vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111143.6U CN205446039U (en) | 2015-12-28 | 2015-12-28 | Single -stage water circulation vacuum pump |
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| Publication Number | Publication Date |
|---|---|
| CN205446039U true CN205446039U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521111143.6U Active CN205446039U (en) | 2015-12-28 | 2015-12-28 | Single -stage water circulation vacuum pump |
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| CN (1) | CN205446039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464979A (en) * | 2015-12-28 | 2016-04-06 | 昂伯（上海）真空设备有限公司 | Single-stage water ring type vacuum pump |
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2015
- 2015-12-28 CN CN201521111143.6U patent/CN205446039U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464979A (en) * | 2015-12-28 | 2016-04-06 | 昂伯（上海）真空设备有限公司 | Single-stage water ring type vacuum pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |