CN204082557U - Vacuum pump screw rotor cooling system - Google Patents

Vacuum pump screw rotor cooling system Download PDF

Info

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
Authority
CN
China
Prior art keywords
cooling water
rotor
cooling
screw rotor
vacuum pump
Prior art date
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.)
Active
Application number
CN201420542681.XU
Other languages
Chinese (zh)
Inventor
张泽武
王于祥
何敏剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG MOTEC SCREW VACUUM PUMP Co Ltd
Original Assignee
ZHEJIANG MOTEC SCREW VACUUM PUMP Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG MOTEC SCREW VACUUM PUMP Co Ltd filed Critical ZHEJIANG MOTEC SCREW VACUUM PUMP Co Ltd
Priority to CN201420542681.XU priority Critical patent/CN204082557U/en
Application granted granted Critical
Publication of CN204082557U publication Critical patent/CN204082557U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Vacuum pump screw rotor cooling system
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.
CN201420542681.XU 2014-09-19 2014-09-19 Vacuum pump screw rotor cooling system Active CN204082557U (en)

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 Active 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 (5)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN204082557U (en) Vacuum pump screw rotor cooling system
CN201433911Y (en) Dry-running sewage submersible pump with dirt separator
RU2007103317A (en) Turbo pump unit
CN205260308U (en) Lobe pump
CN205001176U (en) Flexible rotor gyration power pump
CN204402923U (en) A kind of low noise liquid-ring vacuum pump
CN204402869U (en) For the cooling oil pump of wet clutch
CN203297110U (en) Throttling sealing submersible pump
RU2629054C1 (en) Axial pump of auxiliary circulation
CN205101278U (en) Heat dissipation bearing box
CN204186603U (en) A kind of small volume electric pump
CN204493207U (en) Jet type self-suction centrifugal pump
CN203516109U (en) Roots pump with rotor cooling structure
CN204283999U (en) Engine water pump
CN105090018A (en) Flexible rotor rotodynamic pump
CN203685891U (en) Bearing cooling mechanism
CN203627296U (en) Centrifugal pump impeller assembly
CN202129154U (en) Cooling device for drive mechanism of disc type separator
CN202946440U (en) Pipeline pump structure
CN204126908U (en) A kind of blade pump for hydraulic engine
CN202833139U (en) Constant flow vane pump
CN205315282U (en) Horizontal multi -stage centrifugal pump
CN103511282B (en) With the Roots pump of rotor cooling structure
CN204553243U (en) A kind of centrifugal pump that can not leak
CN211423022U (en) Single-stage single-suction cantilever type chemical centrifugal pump

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant