CN206571685U - A kind of band is vented the Roots vaccum pump of cooling structure - Google Patents
A kind of band is vented the Roots vaccum pump of cooling structure Download PDFInfo
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- CN206571685U CN206571685U CN201720232296.9U CN201720232296U CN206571685U CN 206571685 U CN206571685 U CN 206571685U CN 201720232296 U CN201720232296 U CN 201720232296U CN 206571685 U CN206571685 U CN 206571685U
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- pump
- cooling
- roots vaccum
- exhaust outlet
- vaccum pump
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Abstract
The utility model discloses the Roots vaccum pump that a kind of band is vented cooling structure, including pump case, pump case is provided with air inlet, exhaust outlet, described Roots vaccum pump one end is sets the inlet end of air inlet, and the other end of the Roots vaccum pump is sets the exhaust end of exhaust outlet, and the Roots vacuum pump exhaust inlet includes side exhaust outlet and lower exhaust outlet, the Roots vaccum pump also includes the cooling jacket for being installed on exhaust end, the cooling jacket is located inside pump casing, side exhaust outlet offside, lower exhaust outlet side.During work, cooling water is passed through in chuck, pump housing cooling is given, compared with prior art, the cooling jacket that the utility model is used effectively can carry out Physical temperature-lowering to the pump housing, save the energy, increase the service life of pump, overall structure is simple, good cooling results, it is easy to operate, solve the too high problem of Roots vaccum pump exhaust port temperatures.
Description
Technical field
The utility model belongs to vacuum pump technology field, and the Roots vacuum of cooling structure is vented more particularly to a kind of band
Pump.
Background technology
Roots vaccum pump produces heat due to conveying and compressed gas, and these heats must reach housing from rotor and dissipate
Hair.But under low pressure, conduction and convection current performance extreme difference of the gas to heat, the heat for causing rotor to absorb is difficult to shed, and causes to turn
Sub- temperature is always higher than the temperature of housing.Due to the thermal expansion of rotor, make between rotor and rotor, the gap between rotor and pump case subtracts
It is few, especially in the case where pressure difference is also high, it is particularly acute, or even cause rotor stuck, damage pump.In order that Roots vaccum pump
Worked under higher pressure difference, scope is used to expand, increase the reliability of pump, the heat for the rotor generation that just must try to shed
Amount, that is to say, that to be cooled down to rotor.
At present frequently with cooling means for air cooling, the internal cooling of rotor, rotor oil film cooling, wherein：（1）
Air cooling refers to that, in the intensive cooling fin of the exhaust ports setting of pump, cooling fin is cooled down with cold water pipe, or in the row of pump
Cooling water pipe is mounted directly at gas port, the gas of such exhaust ports will cool, this cooling means can effectively shed sieve
Hold amount of the thatch vacuum pump rotor produced by compressed gas.This cooling means has relation with environment temperature, and environment temperature is high
The gas temperature of suction is just high, then cooling effect is just bad.In addition, this method can only avoid the hyperpyrexia that High Pressure Difference is produced, and
It can not prevent from generating heat in pump pressure compression process, and cause the problem of gap diminishes, so being limited by pump gap itself；（2）Rotor
Internal cooling refer to cool down rotor with recycle oil, squeezed into respectively by oilhole, oily footpath spindle nose at pump shaft two ends, through rotor inner wall
Discharged again from the other end；（3）The oil film cooling of rotor is to connect a petroleum pipeline in Roots vaccum pump porch, with uniformly dripping
Cooling oil take away the heat of rotor.This method effect preferably, but is due to have oil in pump, loses Roots vaccum pump oil-free
The characteristics of steam contamination vacuum system.On the other hand, oil has certain viscosity, and the Roots vacuum pump rotor of high speed rotation is increased
Many frictional force are added, making the power consumption of pump increases.
Utility model content
The purpose of this utility model is that there is provided a kind of band exhaust cooling structure to overcome above-mentioned the deficiencies in the prior art
Roots vaccum pump.
To achieve the above object, the utility model uses following technical proposals：A kind of Roots of band exhaust cooling structure is true
Empty pump, including pump case, pump case are provided with air inlet, exhaust outlet, and described Roots vaccum pump one end is the inlet end for setting air inlet,
The other end of the Roots vaccum pump for set exhaust outlet exhaust end, the Roots vacuum pump exhaust inlet include side exhaust outlet and
Lower exhaust outlet, the Roots vaccum pump also includes the cooling jacket for being installed on exhaust end, and the cooling jacket is located inside pump casing,
Side exhaust outlet offside, lower exhaust outlet side.
As optimization, the cooling jacket is provided with cooling medium outlet and cooling medium entrance, and cooling medium can be
The cooling jacket interior circulation.
As optimization, the cooling medium is cooling water.
As optimization, the cooling medium outlet height is higher than the cooling medium entrance height.
As optimization, the Roots vaccum pump is provided with overfall.
The utility model in the lower exhaust part of the Roots vacuum pump housing by increasing water-cooling jacket, during work, in chuck
Cooling water is inside passed through, pump housing cooling is given, it is to avoid a series of problems caused by temperature is too high.
The beneficial effects of the utility model are：The pump housing effectively can be carried out Physical temperature-lowering by cooling jacket, saved the energy, increased
Plus the service life of pump, simply, good cooling results are easy to operate, solve Roots vaccum pump exhaust port temperatures mistake for overall structure
High problem.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is front view of the present utility model；
Fig. 2 is left view of the present utility model.
Shown in figure：1st, air inlet, 2, cooling water jecket, 3, side exhaust outlet, 4, lower exhaust outlet, 5, overfall, 6, pump case,
7th, cooling medium is exported, 8 cooling medium entrances.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
A kind of band as shown in Fig. 1 and Fig. 2 is vented the Roots vaccum pump of cooling structure, including pump case 6, pump case 6 are provided with
Air inlet, exhaust outlet, are provided with one end referred to as inlet end of air inlet 1, are provided with one end referred to as exhaust end of exhaust outlet, described
Exhaust outlet includes side exhaust outlet 3 and lower exhaust outlet 4, and Roots vaccum pump also includes the cooling jacket 2 for being installed on exhaust end, described cold
But chuck 2 is located at the inner side of pump case 6, the offside of side exhaust outlet 3, the lower side of exhaust outlet 4.The cooling jacket 2 goes out provided with cooling medium
Mouth 7 and cooling medium entrance 8, cooling medium can be in the interior circulation of cooling jacket 2.The cooling medium be cooling water or its
He has the fluid of refrigerating function.The cooling medium exports 7 height higher than the height of cooling medium entrance 8.In order to ensure
The normal operation of Roots vaccum pump, is provided with overfall 5 on the Roots vaccum pump.During work, pass through cooling medium entrance 8
Cooling water is inwardly injected, cooling water is full of whole cooling jacket 2, for cooling to the pump housing, it is to avoid turn caused by temperature is too high
Subcard is waited indefinitely a series of problems, extends the service life of Roots vaccum pump.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of band is vented the Roots vaccum pump of cooling structure, including pump case, pump case is provided with air inlet, exhaust outlet, its feature
It is：Described Roots vaccum pump one end is the inlet end for being provided with air inlet, and the other end of the Roots vaccum pump is to be provided with
The exhaust end of exhaust outlet, the Roots vacuum pump exhaust inlet includes side exhaust outlet and lower exhaust outlet, and the Roots vaccum pump is also wrapped
The cooling jacket for being installed on exhaust end is included, the cooling jacket is located inside pump casing, side exhaust outlet offside, lower exhaust outlet side.
2. a kind of band according to claim 1 is vented the Roots vaccum pump of cooling structure, it is characterised in that：The cooling folder
Cooling medium outlet and cooling medium entrance are arranged with, cooling medium can be in the cooling jacket interior circulation.
3. a kind of band according to claim 2 is vented the Roots vaccum pump of cooling structure, it is characterised in that：The cooling is situated between
Matter is cooling water.
4. a kind of band according to claim 2 is vented the Roots vaccum pump of cooling structure, it is characterised in that：The cooling is situated between
Matter outlet height is higher than cooling medium inlet height.
5. the Roots vaccum pump of cooling structure is vented according to any described a kind of band in Claims 1-4, it is characterised in that：
The Roots vaccum pump is provided with overfall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232296.9U CN206571685U (en) | 2017-03-10 | 2017-03-10 | A kind of band is vented the Roots vaccum pump of cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232296.9U CN206571685U (en) | 2017-03-10 | 2017-03-10 | A kind of band is vented the Roots vaccum pump of cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571685U true CN206571685U (en) | 2017-10-20 |
Family
ID=60056994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720232296.9U Active CN206571685U (en) | 2017-03-10 | 2017-03-10 | A kind of band is vented the Roots vaccum pump of cooling structure |
Country Status (1)
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| CN (1) | CN206571685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278207A (en) * | 2018-01-23 | 2018-07-13 | 安徽银立方金属科技有限公司 | A kind of ion plating equipment is with applying mechanically Roots vaccum pump |
-
2017
- 2017-03-10 CN CN201720232296.9U patent/CN206571685U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278207A (en) * | 2018-01-23 | 2018-07-13 | 安徽银立方金属科技有限公司 | A kind of ion plating equipment is with applying mechanically Roots vaccum pump |
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