CN202937455U - Water cooling type aluminum cover of roots pump - Google Patents
Water cooling type aluminum cover of roots pump Download PDFInfo
- Publication number
- CN202937455U CN202937455U CN 201220581352 CN201220581352U CN202937455U CN 202937455 U CN202937455 U CN 202937455U CN 201220581352 CN201220581352 CN 201220581352 CN 201220581352 U CN201220581352 U CN 201220581352U CN 202937455 U CN202937455 U CN 202937455U
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- CN
- China
- Prior art keywords
- roots pump
- aluminium lid
- aluminum cover
- pump water
- main body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of machinery, in particular to the field of vacuum pumps. A water cooling type aluminum cover of a roots pump comprises an aluminum cover body, wherein a cooling pipe is embedded into the aluminum cover body; the cooling pipe is provided with a liquid inlet and a liquid outlet; the liquid inlet and the liquid outlet are arranged on the outer side of the aluminum cover body; and an aluminum cover used for sealing a system is mounted on the roots pump. Through the design, the water cooling system is built in the aluminum cover. Cooling liquid can flow into the liquid inlet, circulate in the cooling pipe for heat absorption and flow out of the liquid outlet. Therefore, the problem of difficulty for heat emission in the roots pump due to thin air is solved.
Description
Technical field
The utility model relates to field of mechanical technique, is specifically related to a kind of field of vacuum.
Background technique
Roots pump (abbreviation Roots pump) is a kind of rotary positive-displacement vacuum pump.It is developed by Roots blower.According to the difference of Roots pump operating range, be divided into again the rough vacuum Roots pump of discharging directly into atmosphere; Middle Vacuum Roots pump (claiming again mechanical booster pump) and Roots pump water-cooled aluminium lid.
Roots pump (roots-type pump) is a kind of vacuum pump without interior compression, and usually compression ratio is very low, therefore high, intermediate pump needs fore pump.The limiting vacuum of Roots pump, except depending on this body structure of pump and accuracy of manufacturing, also depends on the limiting vacuum of fore pump.In order to improve the ultimate vacuum of pump, the Roots pump series connection can be used.The working principle of Roots pump is similar to Roots blower.Due to the continuous rotation of rotor, pumped gas is drawn in the space v0 between rotor and pump case from suction port, then discharges through relief opening.Because air-breathing rear v0 space is full closeding state, so gas does not have compression and expansion in pump chamber.But, when rotor top turns over the relief opening edge, when the v0 space communicates with exhaust side, because the exhaust side gas pressure intensity is higher, during some gas recoils space v0, gas pressure intensity is increased suddenly.When rotor is rotated further, outside the gas excavationg pump.Roots pump, in pump chamber, has the rotor of two figures of eight to be arranged on mutual vertically on the pair of parallel axle, a pair of gear band action that is 1 by velocity ratio reverse synchronous rotary motion each other.Between rotor, between rotor and pump housing endophragm, maintain certain gap, can realize high rotating speed operation.
Roots pump has following features: larger pumping speed is arranged in wider pressure range; Starting is fast, can work immediately; Insensitive to the dust and the water vapour that contain in pumped gas; Rotor needn't lubricate, nothing oil in pump chamber; Vibrate littlely, the rotor dynamic balancing condition is better, there is no outlet valve; Driving power is little, and mechanical friction loss is little; Compact structure, floor space is little; The during-operation service expense is low.Therefore, Roots pump is widely used in metallurgy, petrochemical industry, papermaking, food, electronics industry.
Roots pump can produce heat in operation process, need to distribute in time in order to avoid affect the equipment normal operation.Because the internal environment gas density is very low, even in vacuum state, its inner heat is difficult to be dispersed into the external world by air.Therefore its heat dissipation problem relatively is difficult to process.
The model utility content
The purpose of this utility model is, provides a kind of Roots pump water-cooled aluminium lid, to solve the problems of the technologies described above.
The technical problem that the utility model solves can realize by the following technical solutions:
Roots pump water-cooled aluminium lid, an aluminium lid main body, is characterized in that, in described aluminium lid main body, is embedded with a cooling tube, described cooling tube is provided with a liquid entering hole, a liquid outlet, described liquid entering hole and described liquid outlet are arranged on the described aluminium lid main body outside.
One aluminium lid for sealing system is housed on Roots pump.The utility model, by above-mentioned design, has been set up a constituent in aluminium lid.Cooling liquid can flow into from liquid entering hole, from liquid outlet, flow out, during in described cooling tube, circulate, and heat absorption.Can be because the problem that rarefaction of air causes heat to be difficult to distribute thereby solve Roots pump.
Described aluminium lid main body is provided with connecting ring, and the inboard indent of described connecting ring, form a cavity.Connect the Roots pump housing by described connecting ring, to realize sealing.
Described connecting ring is provided with screw, so that be bolted to connection.Perhaps described connecting ring is provided with internal thread or outside thread, directly by screw thread, with the Roots pump housing, is connected, to realize sealing.
Described aluminium lid main body is divided into internal layer and skin, internal layer and outer by being welded to connect.
In described internal layer and described skin at least one deck be provided with curved slot, described curved slot and described liquid entering hole and described liquid outlet UNICOM, after described internal layer and the described outside are combined, described curved slot forms described cooling tube.
The accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Roots pump water-cooled aluminium lid, an aluminium lid main body 1, be embedded with a cooling tube 2 in aluminium lid main body 1, and cooling tube 2 is provided with liquid entering hole 21, one liquid outlets 22, and liquid entering hole 21 is arranged on aluminium lid main body 1 outside with liquid outlet 22.
One aluminium lid for sealing system is housed on Roots pump.The utility model, by above-mentioned design, has been set up a constituent in aluminium lid.Cooling liquid can flow into from liquid entering hole 21, from liquid outlet 22, flow out, during in the interior circulation of cooling tube 2, and heat absorption.Can be because the problem that rarefaction of air causes heat to be difficult to distribute thereby solve Roots pump.
Aluminium lid main body 1 is provided with connecting ring 23, and the inboard indent of connecting ring 23, form a cavity.Connect the Roots pump housing by connecting ring 23, to realize sealing.Connecting ring 23 is provided with screw, so that be bolted to connection.Perhaps connecting ring 23 is provided with internal thread or outside thread, directly by screw thread, with the Roots pump housing, is connected, to realize sealing.
Aluminium lid main body 1 is divided into internal layer and skin, internal layer and outer by being welded to connect.In internal layer and skin at least one deck be provided with curved slot, curved slot and liquid entering hole 21 and liquid outlet 22 UNICOMs, after internal layer and the outside are combined, curved slot forms cooling tube 2.
Above demonstration and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. Roots pump water-cooled aluminium lid, an aluminium lid main body, is characterized in that, in described aluminium lid main body, is embedded with a cooling tube, described cooling tube is provided with a liquid entering hole, a liquid outlet, described liquid entering hole and described liquid outlet are arranged on the described aluminium lid main body outside.
2. Roots pump water-cooled aluminium lid according to claim 1, is characterized in that, described aluminium lid main body is provided with connecting ring, and the inboard indent of described connecting ring, form a cavity.
3. Roots pump water-cooled aluminium lid according to claim 2, is characterized in that, described connecting ring is provided with screw.
4. Roots pump water-cooled aluminium lid according to claim 2, is characterized in that, described connecting ring is provided with internal thread.
5. Roots pump water-cooled aluminium lid according to claim 2, is characterized in that, described connecting ring is provided with outside thread.
6. according to claim 1,2,3,4 or 5 described Roots pump water-cooled aluminium lids, it is characterized in that, described aluminium lid main body is divided into internal layer and skin, internal layer and outer by being welded to connect.
7. Roots pump water-cooled aluminium lid according to claim 6, it is characterized in that, in described internal layer and described skin at least one deck be provided with curved slot, described curved slot and described liquid entering hole and described liquid outlet UNICOM, after described internal layer and the described outside are combined, described curved slot forms described cooling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581352 CN202937455U (en) | 2012-11-06 | 2012-11-06 | Water cooling type aluminum cover of roots pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581352 CN202937455U (en) | 2012-11-06 | 2012-11-06 | Water cooling type aluminum cover of roots pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937455U true CN202937455U (en) | 2013-05-15 |
Family
ID=48321697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220581352 Expired - Fee Related CN202937455U (en) | 2012-11-06 | 2012-11-06 | Water cooling type aluminum cover of roots pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937455U (en) |
-
2012
- 2012-11-06 CN CN 201220581352 patent/CN202937455U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20191106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |