CN204082557U - Vacuum pump screw rotor cooling system - Google Patents
Vacuum pump screw rotor cooling system Download PDFInfo
- Publication number
- CN204082557U CN204082557U CN201420542681.XU CN201420542681U CN204082557U CN 204082557 U CN204082557 U CN 204082557U CN 201420542681 U CN201420542681 U CN 201420542681U CN 204082557 U CN204082557 U CN 204082557U
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- CN
- China
- Prior art keywords
- cooling water
- rotor
- screw rotor
- vacuum pump
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 239000000498 cooling water Substances 0.000 claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides vacuum pump screw rotor cooling system, belongs to vacuum pump technology field.It solve and of the prior artly all to cool in pump outside in employing, there is no and directly contact cooling with rotor, therefore its cooling effect bad, can not effectively reduce the problems such as the operating temperature of rotor.This vacuum pump screw rotor cooling system, comprises the screw rotor be arranged in vacuum pump body, and the two ends of described screw rotor all offer axis hole; Inside is provided with the cooling water flow conduits being communicated with axis hole, rotor shaft passes screw rotor by axis hole, left side in described rotor shaft and right side opening are provided with axial cooling water hole, two cooling water holes are all connected with cooling water flow conduits, the cooling water hole of cooling water in rotor shaft can be carried to the cooling water flow conduits in screw rotor, and then discharge through cooling water hole.The utility model has the advantages such as cooling water and screw rotor area of contact are large, good cooling results, flow of cooling water are smooth and easy.
Description
Technical field
The utility model belongs to vacuum pump technology field, refers in particular to a kind of vacuum pump screw rotor cooling system.
Background technique
When screw vacuum pump runs well, pump exhaust inlet gas recoils work done in pump chamber, gas temperature in pump chamber raises, thus the screw pump pump housing and temperature of rotor are raised, in screw vacuum pump, rotor is arranged on pump chamber inside and high speed rotating work done, of the prior art all employing cool in pump outside, there is no and directly contact cooling with rotor, therefore its cooling effect bad, effectively can not reduce the operating temperature of rotor.
Summary of the invention
The purpose of this utility model is to provide a kind of vacuum pump screw rotor cooling system, it is started with from structural design, change the structure of screw rotor, cooling water is transported to screw rotor inside, cooling water and screw rotor directly contact lowers the temperature, the operating temperature of effective guarantee screw rotor, in suitable scope, improves the working life of vacuum pump.
The purpose of this utility model is achieved in that
Vacuum pump screw rotor cooling system, comprises the screw rotor be arranged in vacuum pump body, it is characterized in that: the two ends of described screw rotor all offer axis hole; Inside is provided with the cooling water flow conduits being communicated with axis hole, rotor shaft passes screw rotor by axis hole, left side in described rotor shaft and right side opening are provided with axial cooling water hole, two cooling water holes are all connected with cooling water flow conduits, the cooling water hole of cooling water in rotor shaft can be carried to the cooling water flow conduits in screw rotor, and then discharge through cooling water hole.
In above-mentioned vacuum pump screw rotor cooling system, be positioned on the left of screw rotor and right side rotor shaft on offer and be communicated with the water inlet one of cooling water hole and weep hole one, position with the rotor shaft in screw rotor offers the water inlet two and weep hole two that are communicated with cooling water hole, cooling water can be carried via cooling screw rotor in the cooling water flow conduits of the water inlet one on rotor shaft, cooling water hole and water inlet two to screw rotor, discharge cooling water via weep hole two, cooling water hole and the weep hole two on rotor shaft.
In above-mentioned vacuum pump screw rotor cooling system, the coolant flow channel of described screw rotor inside is provided with in the screw-shaped flow paths wall around rotor shaft spiralization.
In above-mentioned vacuum pump screw rotor cooling system, the position that in described coolant flow channel, spiral flow channel wall and rotor shaft fit is provided with the vent axially arranged.
In above-mentioned vacuum pump screw rotor cooling system, the two ends of described rotor shaft are equipped with double-action motive sealing, and the double-action motive sealing be located on the left of rotor shaft is connected with the cooling water intake be located in vacuum pump body.
In above-mentioned vacuum pump screw rotor cooling system, described in the double-action motive sealing be located on the right side of rotor shaft be connected with the drain chamber be located in vacuum pump body, drain chamber connect cooling water outlet.
The utility model gives prominence to compared to existing technology and useful technique effect is:
1, in the utility model, cooling water gos deep into screw rotor inside, directly contacts with screw rotor internal surface, and cooling directly effectively.
2, the cooling water flow conduits that in the utility model, screw rotor inside is arranged has the screw-shaped flow paths wall matched with screw rotor, and the area of contact of cooling water and screw-shaped flow paths wall is large, good cooling effect.
3, in the utility model, cooling water is inner along with screw-shaped flow paths wall axial advancement at screw rotor, spiral produces large end thrust to cooling water, inertial centrifugal force when therefore can overcome High Rotation Speed suffered by cooling water, ensures the flowing continuity of cooling water, keeps the effect of cooling.
Accompanying drawing explanation
Fig. 1 is structural panel sectional view of the present utility model.
Fig. 2 is partial structurtes schematic diagram in the utility model.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, see Fig. 1-2:
Vacuum pump screw rotor cooling system, comprises the screw rotor 2 be arranged in vacuum pump body 1, and the two ends of described screw rotor all offer axis hole 3; Inside is provided with the cooling water flow conduits 4 being communicated with axis hole, rotor shaft 5 passes screw rotor by axis hole, left side in described rotor shaft 5 and right side opening are provided with axial cooling water hole 6, two cooling water holes 6 are all connected with cooling water flow conduits 4, the cooling water flow conduits 4 in cooling water hole 6 to the screw rotor 2 of cooling water in rotor shaft 5 can be carried, and then discharge through cooling water hole 6.
In use, it is inner that cooling water is deep into screw rotor 2 to the utility model, large with the area of contact of rotor, near with rotor surface distance, plays good rotor cooling effect.
Be positioned on the left of screw rotor 2 and right side rotor shaft 5 on offer and be communicated with the water inlet 1 of cooling water hole 6 and weep hole 1, position with the rotor shaft 5 in screw rotor 2 offers the water inlet 29 and weep hole 2 10 that are communicated with cooling water hole 6, cooling water can be carried via cooling screw rotor 2 in the cooling water flow conduits 4 of the water inlet 1 on rotor shaft 5, cooling water hole 6 and water inlet 2 10 to screw rotor 2, discharge cooling water via the weep hole 2 10 on rotor shaft 5, cooling water hole 6 and weep hole 2 10.
The cooling water flow conduits 4 of described screw rotor 2 inside is provided with in the screw-shaped flow paths wall 11 around rotor shaft 5 spiralization.
Namely screw-shaped flow paths wall 11 is spiral water interlayer, and screw rotor is when High Rotation Speed, and spiral can produce very large end thrust to cooling water, thus inertial centrifugal force when can overcome High Rotation Speed suffered by cooling water, ensure the continuity of flow of cooling water.
The position that in described coolant flow channel, spiral flow channel wall and rotor shaft fit is provided with the vent 12 axially arranged.Spiral high speed rotates the load that the end thrust produced can increase exhaust side double-action motive sealing, accelerates the wearing and tearing of motive sealing, reduces the reliability of motive sealing, need arrange vent when, in order to avoid the hydraulic pressure of exhaust side is excessive in rotor water interlayer.
The two ends of described rotor shaft are equipped with double-action motive sealing 13, and the double-action motive sealing be located on the left of rotor shaft is connected with the cooling water intake 14 be located in vacuum pump body.
The described double-action motive sealing be located on the right side of rotor shaft is connected with the drain chamber 15 be located in vacuum pump body, and drain chamber connects cooling water outlet 16.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.
Claims (6)
1. vacuum pump screw rotor cooling system, comprises the screw rotor be arranged in vacuum pump body, it is characterized in that: the two ends of described screw rotor all offer axis hole; Inside is provided with the cooling water flow conduits being communicated with axis hole, rotor shaft passes screw rotor by axis hole, left side in described rotor shaft and right side opening are provided with axial cooling water hole, two cooling water holes are all connected with cooling water flow conduits, the cooling water hole of cooling water in rotor shaft can be carried to the cooling water flow conduits in screw rotor, and then discharge through cooling water hole.
2. vacuum pump screw rotor cooling system according to claim 1, it is characterized in that: be positioned on the left of screw rotor and right side rotor shaft on offer and be communicated with the water inlet one of cooling water hole and weep hole one, position with the rotor shaft in screw rotor offers the water inlet two and weep hole two that are communicated with cooling water hole, cooling water can be carried via cooling screw rotor in the cooling water flow conduits of the water inlet one on rotor shaft, cooling water hole and water inlet two to screw rotor, discharge cooling water via weep hole two, cooling water hole and the weep hole two on rotor shaft.
3. vacuum pump screw rotor cooling system according to claim 2, is characterized in that: the coolant flow channel of described screw rotor inside is provided with in the screw-shaped flow paths wall around rotor shaft spiralization.
4. vacuum pump screw rotor cooling system according to claim 3, is characterized in that: the position that in described coolant flow channel, spiral flow channel wall and rotor shaft fit is provided with the vent axially arranged.
5. vacuum pump screw rotor cooling system according to claim 2, is characterized in that: the two ends of described rotor shaft are equipped with double-action motive sealing, the double-action motive sealing be located on the left of rotor shaft is connected with the cooling water intake be located in vacuum pump body.
6. vacuum pump screw rotor cooling system according to claim 5, is characterized in that: described in the double-action motive sealing be located on the right side of rotor shaft be connected with the drain chamber be located in vacuum pump body, drain chamber connect cooling water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542681.XU CN204082557U (en) | 2014-09-19 | 2014-09-19 | Vacuum pump screw rotor cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542681.XU CN204082557U (en) | 2014-09-19 | 2014-09-19 | Vacuum pump screw rotor cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082557U true CN204082557U (en) | 2015-01-07 |
Family
ID=52175280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542681.XU Expired - Fee Related CN204082557U (en) | 2014-09-19 | 2014-09-19 | Vacuum pump screw rotor cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082557U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715513A (en) * | 2016-04-07 | 2016-06-29 | 台州环球真空设备制造有限公司 | Air-cooling type vacuum pump |
| CN106704176A (en) * | 2016-12-02 | 2017-05-24 | 马德宝真空设备集团有限公司 | Cooling system of Roots pump |
| CN108430734A (en) * | 2015-12-18 | 2018-08-21 | 米其林集团总公司 | Convey the screw rod and its production method of material |
| CN108488071A (en) * | 2018-03-06 | 2018-09-04 | 荣易 | A kind of full package thermostatically-controlled equipment for Roots vaccum pump and roots blower |
| CN109681430A (en) * | 2018-12-25 | 2019-04-26 | 江阴爱尔姆真空设备有限公司 | A kind of vacuum pump screw rotor cooling device |
| CN111536041A (en) * | 2020-05-11 | 2020-08-14 | 山东凯恩真空技术有限公司 | Corrosion-resistant screw vacuum pump for special treatment of overflow surface |
| CN114412785A (en) * | 2022-03-28 | 2022-04-29 | 天津捷盛东辉保鲜科技有限公司 | Wide-temperature-range constant-temperature rotor type double-screw refrigeration compressor |
| CN114738280A (en) * | 2022-04-10 | 2022-07-12 | 江苏天丰真空泵有限公司 | Oil-free screw type vacuum pump with cooling device |
| CN115853780A (en) * | 2022-11-10 | 2023-03-28 | 江阴华西节能技术有限公司 | Variable-pitch screw vacuum pump |
| CN117212155A (en) * | 2023-08-15 | 2023-12-12 | 南京真空泵厂有限公司 | Double-screw vacuum pump rotor structure and vacuum pump |
-
2014
- 2014-09-19 CN CN201420542681.XU patent/CN204082557U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108430734A (en) * | 2015-12-18 | 2018-08-21 | 米其林集团总公司 | Convey the screw rod and its production method of material |
| CN105715513A (en) * | 2016-04-07 | 2016-06-29 | 台州环球真空设备制造有限公司 | Air-cooling type vacuum pump |
| CN105715513B (en) * | 2016-04-07 | 2017-10-24 | 台州环球真空设备制造有限公司 | Air-cooled vavuum pump |
| CN106704176A (en) * | 2016-12-02 | 2017-05-24 | 马德宝真空设备集团有限公司 | Cooling system of Roots pump |
| CN108488071A (en) * | 2018-03-06 | 2018-09-04 | 荣易 | A kind of full package thermostatically-controlled equipment for Roots vaccum pump and roots blower |
| CN109681430A (en) * | 2018-12-25 | 2019-04-26 | 江阴爱尔姆真空设备有限公司 | A kind of vacuum pump screw rotor cooling device |
| CN111536041A (en) * | 2020-05-11 | 2020-08-14 | 山东凯恩真空技术有限公司 | Corrosion-resistant screw vacuum pump for special treatment of overflow surface |
| CN114412785A (en) * | 2022-03-28 | 2022-04-29 | 天津捷盛东辉保鲜科技有限公司 | Wide-temperature-range constant-temperature rotor type double-screw refrigeration compressor |
| CN114412785B (en) * | 2022-03-28 | 2022-07-15 | 天津捷盛东辉保鲜科技有限公司 | Wide-temperature-range constant-temperature rotor type double-screw refrigeration compressor |
| CN114738280A (en) * | 2022-04-10 | 2022-07-12 | 江苏天丰真空泵有限公司 | Oil-free screw type vacuum pump with cooling device |
| CN114738280B (en) * | 2022-04-10 | 2024-04-09 | 江苏天丰真空泵有限公司 | Oilless screw vacuum pump with cooling device |
| CN115853780A (en) * | 2022-11-10 | 2023-03-28 | 江阴华西节能技术有限公司 | Variable-pitch screw vacuum pump |
| CN115853780B (en) * | 2022-11-10 | 2023-09-12 | 江阴华西节能技术有限公司 | Variable pitch screw vacuum pump |
| CN117212155A (en) * | 2023-08-15 | 2023-12-12 | 南京真空泵厂有限公司 | Double-screw vacuum pump rotor structure and vacuum pump |
| CN117212155B (en) * | 2023-08-15 | 2024-02-27 | 南京真空泵厂有限公司 | Double-screw vacuum pump rotor structure and vacuum pump |
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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: 20150107 |