CN114738280A - Oil-free screw type vacuum pump with cooling device - Google Patents
Oil-free screw type vacuum pump with cooling device Download PDFInfo
- Publication number
- CN114738280A CN114738280A CN202210370566.8A CN202210370566A CN114738280A CN 114738280 A CN114738280 A CN 114738280A CN 202210370566 A CN202210370566 A CN 202210370566A CN 114738280 A CN114738280 A CN 114738280A
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- Prior art keywords
- cooling
- pump
- wall
- rotor
- water
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- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000000498 cooling water Substances 0.000 claims abstract description 38
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 241000883990 Flabellum Species 0.000 claims description 11
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 8
- 229910052753 mercury Inorganic materials 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The application discloses an oilless screw vacuum pump with a cooling device in the technical field of vacuum pumps, which comprises a connecting shaft, an air suction cover, an inner water inlet, an inner water outlet, an outer water inlet, an outer water outlet and a cooling water pump, wherein the two ends of a rotor are connected with the connecting shaft, the two side walls of a pump body are both provided with the air suction cover, the inner water inlet and the inner water outlet are connected with a second cooling water pipe penetrating through the connecting shaft and the rotor, the inner wall of the pump body is provided with a cooling air cavity, a first cooling water pipe is arranged in the cooling air cavity, one side of the inner wall of the pump body is provided with a water pump start-stop device, the cooling water pump start-stop device controls the start-stop of the cooling water pump to realize the air cooling of the outer wall of the rotor and the pump body, when the air cooling can not meet the cooling of the pump body through water cooling, the cooling effect of the pump body can be effectively improved, and can effectively reduce energy consumption.
Description
Technical Field
The application relates to the technical field of vacuum pumps, in particular to an oil-free screw type vacuum pump with a cooling device.
Background
When the oil-free screw vacuum pump operates normally, the working temperature of gas in a pump cavity rises, so that the temperature of a pump body and a rotor of the screw pump rises.
In view of the above-mentioned related art, the present application provides an oil-free screw type vacuum pump having a cooling device.
Disclosure of Invention
The application provides an oilless screw vacuum pump with cooling device to solve the general problem of prior art to the cooling efficiency of vacuum pump that proposes among the above-mentioned background art.
The application provides an oil-free screw vacuum pump with cooling device adopts following technical scheme: the cooling pump comprises a pump body, wherein the pump body comprises a rotor, screw blades and a driving motor, and further comprises a connecting shaft, an air suction cover, an inner water inlet, an inner water outlet, an outer water inlet, an outer water outlet and a cooling water pump, the two ends of the rotor are connected with the connecting shaft, the air suction covers are mounted on the two side walls of the pump body, the connecting shaft penetrates through the air suction cover, one side of the connecting shaft is connected with the output end of the driving motor through a driving belt, the inner water inlet and the inner water outlet are connected with a second cooling water pipe penetrating through the connecting shaft and the inner part of the rotor, a cooling air cavity is formed in the inner wall of the pump body, a first cooling water pipe is arranged in the cooling air cavity, the outer water inlet and the outer water outlet are connected through the first cooling water pipe, the two groups of air suction covers are communicated with the rotor and the cooling air cavity, and the output end of the cooling water pump is respectively connected with the inner water inlet and the outer water inlet, and a water pump start-stop device is installed on one side of the inner wall of the pump body, and the cooling water pump is controlled to start and stop by the water pump start-stop device.
Optionally, one end of the connecting shaft far away from the air suction cover is connected with an inner water inlet through a water pipe rotating seat, and the other end of the connecting shaft far away from the air suction cover is connected with an inner water outlet through a water pipe rotating seat.
Through adopting above-mentioned technical scheme, adopt the water pipe to rotate the seat, can be when the connecting axle rotates, let in the connecting axle with cooling water in.
Optionally, the suction hood is internally provided with fan blades and a filter screen, the fan blades are fixedly sleeved on the connecting shaft and are positioned in two groups of fan blades in the connecting shaft in the same direction.
Through adopting above-mentioned technical scheme, the filter screen can filter absorptive outside air, avoids polluting the internal air chamber of pump, and two sets of flabellums work can make one side air admission to the pump body in, the opposite side with air escape.
Optionally, both sides wall of the pump body all opens the intercommunication chamber, the cover that induced drafts through the intercommunication chamber respectively with cooling air cavity and rotor communicate mutually, the intercommunication chamber with be connected with a plurality of intercommunication air cavities that are the design of spoke form between the intercommunication air cavity.
Through adopting above-mentioned technical scheme, when can guaranteeing pump body stable in structure, guarantee the effect to pump body external cooling.
Optionally, the rotor comprises an outer wall, an inner wall and a rotor air chamber, the rotor air chamber is arranged between the outer wall and the inner wall, the outer wall and the inner wall are connected with a plurality of supporting blocks, and a screw blade air chamber communicated with the rotor air chamber is formed inside the screw blade.
By adopting the technical scheme, the heat inside the rotor and the screw blade is driven.
Optionally, the water pump start-stop device comprises a shell, a piston cylinder is installed on one side of the shell, a piston is inserted into one side of the interior of the piston cylinder, one end, extending out of the piston cylinder, of the piston is connected with a movable plate, one end, far away from the movable plate, of the piston and a mercury injection cavity are filled between the inner wall of the piston cylinder, a switch is installed on the side wall of the pump body, an electric contact movable block is arranged on the outer wall of the movable plate, an electric contact static block is arranged on the outer wall of the switch, and a spring is connected between the movable plate and the switch.
Through adopting above-mentioned technical scheme, when the internal temperature of pump was too high, mercury can expand and drive electric contact movable block and the contact of electric contact quiet piece, realizes the switch-on of switch to start cooling water pump and carry out work, realize the water-cooling.
Optionally, the input end of the cooling water pump is connected with the inner water outlet and the outer water outlet through a cooling box.
Through adopting above-mentioned technical scheme, discharge the heat that produces in the pump body to the cooling tank through interior delivery port and the mouth of a river of going out and carry out the hydrologic cycle, then carry out the circulation of coolant liquid again.
In summary, the present application includes at least one of the following benefits:
this application drives the rotor through the connecting axle and carries out work when, drives simultaneously and breathes in the inside flabellum of cover and carry out work, realizes the air cooling of rotor and pump body outer wall, opens when the water pump opens and stops that ware monitoring air cooling can not satisfy the cooling of the pump body, through the water-cooling, not only can effectively improve the cooling effect of the pump body, can effectively reduce energy resource consumption moreover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic structural view of the suction hood of the present application;
FIG. 3 is a cross-sectional view of the present application A-A;
FIG. 4 is a schematic view of the internal structure of the rotor and screw blade of the present application;
FIG. 5 is a schematic diagram of the structure of the water pump start-stop device.
Description of reference numerals: 1. a pump body; 101. a rotor; 1011. an outer wall; 1012. an inner wall; 1013. a rotor air chamber; 102. a screw blade; 1021. a screw blade air chamber; 103. a drive motor; 2. a connecting shaft; 3. an air suction hood; 301. a fan blade; 302. a filter screen; 4. a transmission belt; 5. a cooling air cavity; 6. a first cooling water pipe; 7. an inner water inlet; 8. an inner water outlet; 9. a water pipe rotating seat; 10. a water pump start-stop device; 1001. a housing; 1002. a piston cylinder; 1003. a piston; 1004. a mercury injection chamber; 1005. a movable plate; 1006. electrically contacting the moving block; 1007. a switch; 1008. electrically contacting the stationary block; 1009. a spring; 11. an outer water inlet; 12. an outlet water port; 13. a cooling water pump; 14. a communicating cavity; 15. the air cavity is communicated; 16. and a second cooling water pipe.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
Referring to fig. 1, the application discloses an oil-free screw vacuum pump with a cooling device, which comprises a pump body 1, wherein the pump body 1 comprises a rotor 101, a screw blade 102 and a driving motor 103, and further comprises a connecting shaft 2, an air suction cover 3, an inner water inlet 7, an inner water outlet 8, an outer water inlet 11, an outer water outlet 12 and a cooling water pump 13, the two ends of the rotor 101 are connected with the connecting shaft 2, the air suction cover 3 is mounted on the two side walls of the pump body 1, the connecting shaft 2 penetrates through the air suction cover 3, the connecting shaft 2 on one side is connected with the output end of the driving motor 103 through a driving belt 4, the inner water inlet 7 and the inner water outlet 8 are connected with a second cooling water pipe 16 penetrating through the connecting shaft 2 and the rotor 101, a cooling air cavity 5 is formed on the inner wall of the pump body 1, a first cooling water pipe 6 is arranged in the cooling air cavity 5, and the outer water inlet 11 and the outer water outlet 12 are connected through the first cooling water pipe 6, two sets of cover 3 and rotor 101 and cooling air cavity 5 homogeneous phase intercommunication induced drafts, and cooling water pump 13's output is connected with interior water inlet 7 and outer water inlet 11 respectively, and the water pump is installed on one side of the inner wall of the pump body 1 and is stopped ware 10, stops ware 10 control cooling water pump 13 through the water pump and stops and open.
Wherein, the input end of the cooling water pump 13 is connected with the inner water outlet 8 and the outer water outlet 12 through the cooling box, and the heat generated in the pump body 1 is discharged to the cooling box through the inner water outlet 8 and the outer water outlet 12 for water circulation, and then the circulation of the cooling liquid is carried out. One end of one group of connecting shaft 2, which is far away from the air suction hood 3, is connected with an inner water inlet 7 through a water pipe rotating seat 9, one end of the other group of connecting shaft 2, which is far away from the air suction hood 3, is connected with an inner water outlet 8 through a water pipe rotating seat 9, and the water pipe rotating seat 9 is adopted, so that cooling water can be introduced into the connecting shaft 2 while the connecting shaft 2 rotates.
Referring to fig. 2, the internally mounted of cover 3 that induced drafts has flabellum 301 and filter screen 302, flabellum 301 is fixed to fix the cover and is located on connecting axle 2, drive flabellum 301 through connecting axle 2 and rotate, flabellum 301 is current product, it can absorb outside air when rotating, filter screen 302 can filter absorptive outside air, avoid polluting air chamber in the pump body 1, flabellum 302 orientation syntropy that is located two sets of connecting axles 2 sets up, two sets of flabellum 302 work, can make one side air enter into the pump body 1 in, the opposite side is with air escape.
Referring to fig. 3, both sides wall of the pump body 1 has all opened intercommunication chamber 14, it is linked together with cooling air cavity 5 and rotor 101 respectively to induced draft cover 3 through intercommunication chamber 14, inside air through induced draft cover 3 can flow to cooling air cavity 5 and rotor 101 respectively, the realization is to the outside and inside simultaneous cooling of the pump body 1, be connected with a plurality of intercommunication air cavities 15 that are the design of spoke form between intercommunication chamber 14 and the intercommunication air cavity 15, when can guaranteeing the stable in structure of the pump body 1, guarantee the outside refrigerated effect of the pump body 1.
Referring to fig. 4, the rotor 101 is composed of an outer wall 1011, an inner wall 1012 and a rotor air chamber 1013, the rotor air chamber 1013 is arranged between the outer wall 1011 and the inner wall 1012, the outer wall 1011 and the inner wall 1012 are connected with a plurality of supporting blocks, so as to ensure the stable structure of the rotor 101, the air can flow through the interior of the rotor 101, the screw blade air chamber 1021 communicated with the rotor air chamber 1013 is arranged inside the screw blade 102, the flowing air can also flow into the interior of the screw blade 102, and the internal heat drive of the screw blade 102 is realized.
Referring to fig. 5, water pump opens stops ware 10 and includes casing 1001, piston barrel 1002 is installed to one side of casing 1001, it has piston 1003 to peg graft in inside one side of piston barrel 1002, the one end that piston 1003 extends piston barrel 1002 is connected with fly leaf 1005, it has mercury injection chamber 1004 to fill between the one end that piston 1003 kept away from fly leaf 1005 and the piston barrel 1002 inner wall, switch 1007 is installed to the lateral wall of the pump body 1, be equipped with electric contact movable block 1006 on the outer wall of fly leaf 1005, be equipped with electric contact static block 1008 on the outer wall of switch 1007, be connected with spring 1009 between fly leaf 1005 and the switch 1007, inject mercury in the mercury injection chamber 1004, when the interior high temperature of the pump body 1, mercury can expand and drive electric contact movable block 1006 and electric contact static block 1008 contact, realize the switch-on of switch 1007, thereby start cooling water pump 13 and work, realize the water-cooling.
The application discloses an implementation theory of operation of having no oily screw vacuum pump of cooling device does:
when the oil-free screw type vacuum pump works, the driving motor 103 works, the rotor 101 and the screw blade 102 are driven to rotate through the connecting shaft 2, external air is sucked into the communicating cavity 14 through the fan blade 301 in the air suction cover 3 on one side while the connecting shaft 2 rotates, then the external air flows into the rotor 101, the screw blade 102 and the cooling air cavity 5 respectively to drive heat outside the pump body 1, the air with the heat is discharged through the fan blade 301 in the air suction cover 3 on the other side to promote air flow rate and improve cooling effect, when the water pump start-stop device 10 monitors that the temperature in the pump body 1 is overhigh, the cooling water pump 13 is driven to work, the cooling water can enter the first cooling water pipe 6 through the outer water inlet 11 on one way to cool the outside of the pump body 1, and the cooling water enters the second cooling water pipe 16 on the other way to cool the inside of the rotor 101, the rapid cooling of the pump body 1 is achieved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. An oil-free screw vacuum pump with a cooling device, comprising a pump body (1), the pump body (1) comprising a rotor (101), a screw blade (102) and a drive motor (103), characterized in that: the cooling pump is characterized by further comprising a connecting shaft (2), an air suction cover (3), an inner water inlet (7), an inner water outlet (8), an outer water inlet (11), an outer water outlet (12) and a cooling water pump (13), wherein the two ends of the rotor (101) are connected with the connecting shaft (2), the air suction cover (3) is installed on two side walls of the pump body (1), the connecting shaft (2) penetrates through the air suction cover (3), the connecting shaft (2) is connected with the output end of the driving motor (103) through a driving belt (4), the inner water inlet (7) and the inner water outlet (8) are connected with a second cooling water pipe (16) penetrating through the connecting shaft (2) and the rotor (101), a cooling air cavity (5) is formed in the inner wall of the pump body (1), a first cooling water pipe (6) is arranged in the cooling air cavity (5), and the outer water inlet (11) and the outer water outlet (12) are connected through the first cooling water pipe (6), two sets of cover (3) that induced drafts with rotor (101) and cooling air cavity (5) homogeneous phase intercommunication, the output of cooling water pump (13) respectively with interior water inlet (7) are connected with outer water inlet (11), the inner wall one side of the pump body (1) is installed the water pump and is stopped ware (10), through the water pump is stopped ware (10) control cooling water pump (13) and is stopped and open.
2. An oil-free screw vacuum pump having a cooling device as claimed in claim 1, wherein: one end of the connecting shaft (2) far away from the air suction cover (3) is connected with an inner water inlet (7) through a water pipe rotating seat (9), and the other end of the connecting shaft (2) far away from the air suction cover (3) is connected with an inner water outlet (8) through a water pipe rotating seat (9).
3. An oil-free screw vacuum pump having a cooling device as claimed in claim 1, wherein: the internal mounting of cover (3) that induced drafts has flabellum (301) and filter screen (302), flabellum (301) are fixed to be overlapped and are located on connecting axle (2), are located two sets of flabellum (301) orientation syntropy setting in connecting axle (2).
4. An oil-free screw vacuum pump with a cooling device as claimed in claim 1, characterized in that: both sides wall of the pump body (1) all opens and has intercommunication chamber (14), the cover (3) that induced drafts through intercommunication chamber (14) respectively with cooling air cavity (5) and rotor (101) are linked together, intercommunication chamber (14) with be connected with a plurality of intercommunication air cavities (15) that are the design of spoke form between intercommunication air cavity (15).
5. An oil-free screw vacuum pump with a cooling device as claimed in claim 1, characterized in that: the rotor (101) comprises an outer wall (1011), an inner wall (1012) and a rotor air chamber (1013), the rotor air chamber (1013) is arranged between the outer wall (1011) and the inner wall (1012), the outer wall (1011) and the inner wall (1012) are connected with a plurality of supporting blocks, and a screw blade air chamber (1021) communicated with the rotor air chamber (1013) is formed in the screw blade (102).
6. An oil-free screw vacuum pump with a cooling device as claimed in claim 1, characterized in that: the water pump opens and stops ware (10) includes casing (1001), piston cylinder (1002) are installed to one side of casing (1001), the inside one side grafting of piston cylinder (1002) has piston (1003), piston (1003) extend the one end of piston cylinder (1002) is connected with fly leaf (1005), piston (1003) keep away from the one end of fly leaf (1005) with it pours into chamber (1004) to fill mercury between piston cylinder (1002) the inner wall, switch (1007) are installed to the lateral wall of the pump body (1), be equipped with electric contact movable block (1006) on the outer wall of fly leaf (1005), be equipped with electric contact static block (1008) on the outer wall of switch (1007), be connected with spring (1009) between fly leaf (1005) and switch (1007).
7. An oil-free screw vacuum pump having a cooling device as claimed in claim 1, wherein: and the input end of the cooling water pump (13) is connected with the inner water outlet (8) and the outer water outlet (12) through a cooling box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210370566.8A CN114738280B (en) | 2022-04-10 | 2022-04-10 | Oilless screw vacuum pump with cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210370566.8A CN114738280B (en) | 2022-04-10 | 2022-04-10 | Oilless screw vacuum pump with cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114738280A true CN114738280A (en) | 2022-07-12 |
| CN114738280B CN114738280B (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210370566.8A Active CN114738280B (en) | 2022-04-10 | 2022-04-10 | Oilless screw vacuum pump with cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114738280B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750353A (en) * | 2022-11-19 | 2023-03-07 | 上海阿波罗机械股份有限公司 | Shielding multistage self-cooling compressor |
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| CN113357665A (en) * | 2021-07-06 | 2021-09-07 | 西安热工研究院有限公司 | Cooling system and method for high-temperature ammonia-spraying denitration water-cooling spray gun |
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| Publication number | Publication date |
|---|---|
| CN114738280B (en) | 2024-04-09 |
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