CN203655638U - Miniature vertical type two-stage threaded rod refrigeration compressor - Google Patents
Miniature vertical type two-stage threaded rod refrigeration compressor Download PDFInfo
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- CN203655638U CN203655638U CN201320523459.0U CN201320523459U CN203655638U CN 203655638 U CN203655638 U CN 203655638U CN 201320523459 U CN201320523459 U CN 201320523459U CN 203655638 U CN203655638 U CN 203655638U
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Abstract
The utility model discloses a miniature vertical type two-stage threaded rod refrigeration compressor which is compact in structure, small in size and small in occupied space. The miniature vertical type two-stage threaded rod refrigeration compressor comprises a chassis, an engine body, a first end cover, a second end cover, a high-pressure male rotor, a high-pressure female rotor, a low-pressure male rotor, a low-pressure female rotor, a compression driving mechanism, an oil separator, a middle-pressure mixing chamber and a lubricating oil passage of a rotating component; the chassis is of a closed structure; the engine body, the first end cover, the second end cover, the high-pressure male rotor, the high-pressure female rotor, the low-pressure male rotor, the low-pressure female rotor, the compression driving mechanism and the oil separator are located in the chassis; two ends of the engine body are respectively and detachably connected with the first end cover and the second end cover; a high-pressure cylinder and a lower-pressure cylinder which penetrates through the whole engine body are arranged in the engine body along the axis direction. The compressor has the advantages of being compact structure, convenient to assemble, small in size, high in running performance, smooth and steady to operate and stable in working.
Description
Technical field
The utility model relates to refrigeration technology field, particularly relates to a kind of minitype vertical type two-stage screw bolt refrigerant compressor.
Background technique
In multiple industry and civilian refrigeration and cold storage applications such as aquatic products, crops and chemical industry, in a lot of situations, need low temperature environment, Vapor Compression Refrigeration Cycle system is widely used.Capital equipment in Vapor Compression Refrigeration Cycle system is refrigeration compressor, along with the application of numerical control machine tool, and the improving constantly of machining accuracy, the using scope of Spiral Lobe Refrigeration Compressor constantly increases.
Existing cryogenic freezing cold storage refrigeration system Spiral Lobe Refrigeration Compressor, is mostly opening type, and high and low pressure stage compressor is single stage compressor combo or employing single machine two-stage formula, and refrigerating capacity is large, boundary dimension is large.And for using flexibly, control small-sized cryogenic freezing cold storage refrigeration system easily, be difficult to choose suitable two-stage screw bolt refrigerant compressor.Therefore, urgently stable, the compact structure of development, boundary dimension is little, little two-stage screw bolt refrigerant compressor takes up space.
Model utility content
The purpose of this utility model is for existing technological deficiency, and the minitype vertical type two-stage screw bolt refrigerant compressor that a kind of compact structure, boundary dimension are little, take up space little is provided.
For realizing the technological scheme that the purpose of this utility model adopts be:
A kind of minitype vertical type two-stage screw bolt refrigerant compressor, comprise the oil leab of casing, body, the first end cap, the second end cap, high pressure stage male rotor, high pressure stage female rotor, low pressure stage male rotor, low pressure stage female rotor, compressible drive mechanism, oil separator, intermediate pressure mixing chamber and rotatable parts, described casing is enclosed construction, and described body, the first end cap, the second end cap, high pressure stage male rotor, high pressure stage female rotor, low pressure stage male rotor, low pressure stage female rotor, compressible drive mechanism and oil separator are positioned at described casing inside, the fixed installation that closely cooperates of described body and described casing inner wall, described body two ends respectively with described the first end cap and the second end cap releasable connection, in described body, be provided with along axial direction the high pressure stage cylinder and the low pressure stage cylinder that run through whole body, the described high pressure stage male rotor and the high pressure stage female rotor that cooperatively interact are installed in described high pressure stage cylinder, the described low pressure stage male rotor and the low pressure stage female rotor that cooperatively interact are installed in described low pressure stage cylinder, the inner position relative with described high pressure stage cylinder of described the first end cap is high pressure stage exhaust cavity, the inner position relative with described low pressure stage cylinder of described the first end cap is low pressure stage air aspiration cavity, the both sides of described high pressure stage exhaust cavity are respectively arranged with and the high pressure stage relief opening of described high pressure stage cylinder connection and the high pressure stage exhaust port for being connected with high pressure stage vent connection, on described high pressure stage exhaust port, be sealedly connected with described high pressure stage vent connection, described high pressure stage vent connection is connected with the pressurized gas import of described oil separator, on described oil separator, be sealedly connected with the high pressure stage outlet pipe through described casing, described high pressure stage outlet pipe is connected with described external condensation device, the both sides of described low pressure stage air aspiration cavity are respectively arranged with the low pressure stage intakeport that is communicated with described low pressure stage cylinder and the low pressure stage suction port for being communicated with space in described casing, a described casing side corresponding with institute low pressure stage suction port is provided with the low pressure stage air inlet tube with described casing internal communication, and described low pressure stage air inlet tube is connected with described external boiler, on described the second end cap, the position relative with described high pressure stage cylinder is high pressure stage air aspiration cavity, on described the second end cap, the position relative with described low pressure stage cylinder is low pressure stage exhaust cavity, the both sides of described high pressure stage air aspiration cavity are respectively arranged with the high pressure stage intakeport being communicated with described high pressure stage cylinder and the high pressure stage suction port being communicated with described intermediate pressure mixing chamber by high pressure stage air inlet tube, the both sides of described low pressure stage exhaust cavity are respectively arranged with the low pressure stage relief opening being communicated with described low pressure stage cylinder and the low pressure stage exhaust port being communicated with described intermediate pressure mixing chamber by low pressure stage vent connection, on described casing, be provided with the liquid-spraying pipe being communicated with described intermediate pressure mixing chamber through described casing, described compressible drive mechanism drives described low pressure stage male rotor and described high pressure stage male rotor to rotate along equidirectional, the center line of described body, high pressure stage male rotor, high pressure stage female rotor, low pressure stage male rotor and low pressure stage female rotor is Vertical direction, the radially side that described high pressure stage intakeport is thrown off mutually at the tooth of described high pressure stage male rotor and high pressure stage female rotor, the radially side that described high pressure stage relief opening is clogged mutually at the tooth of described high pressure stage male rotor and high pressure stage female rotor, the radially side that described low pressure stage intakeport is thrown off mutually at the tooth of described low pressure stage male rotor and low pressure stage female rotor, the radially side that described low pressure stage relief opening is clogged mutually at the tooth of described low pressure stage male rotor and low pressure stage female rotor.
Described compressible drive mechanism is drive motor, and the stator of described drive motor and rotor are installed in described casing, and the rotor of described drive motor drives described low pressure stage male rotor.
The main back shaft of high pressure stage male rotor at described high pressure stage male rotor two ends and the auxiliary back shaft of high pressure stage male rotor are rotatably connected with described the first end cap and the second end cap respectively, the main back shaft of described high pressure stage male rotor connects described the first end cap, non-through described the second end cap of the auxiliary back shaft of described high pressure stage male rotor; The main back shaft of high pressure stage female rotor at described high pressure stage female rotor two ends and the auxiliary back shaft of high pressure stage female rotor are rotatably connected with described the first end cap and the second end cap respectively, non-through described the first end cap of the main back shaft of described high pressure stage female rotor, non-through described the second end cap of the auxiliary back shaft of described high pressure stage female rotor; The main back shaft of low pressure stage male rotor at described low pressure stage male rotor two ends and the auxiliary back shaft of low pressure stage male rotor are rotatably connected with described the first end cap and the second end cap respectively, the main back shaft of described low pressure stage male rotor connects described the first end cap, non-through described the second end cap of the auxiliary back shaft of described low pressure stage male rotor; The main back shaft of low pressure stage female rotor at described low pressure stage female rotor two ends and the auxiliary back shaft of low pressure stage female rotor are rotatably connected with described the first end cap and the second end cap respectively, non-through described the first end cap of the main back shaft of described low pressure stage female rotor, non-through described the second end cap of the auxiliary back shaft of described low pressure stage female rotor; The main back shaft of described low pressure stage male rotor is closely connected with the rotor of described drive motor, the main back shaft of described low pressure stage male rotor is connected with the main back shaft of described high pressure stage male rotor by driving mechanism, the rotor of described drive motor drives the main back shaft of described low pressure stage male rotor, and the main back shaft of described low pressure stage male rotor drives the main back shaft of described high pressure stage male rotor.
Driving mechanism between the main back shaft of described low pressure stage male rotor and the main back shaft of described high pressure stage male rotor comprises the first gear, the second gear, the 3rd gear and gear shaft, described the first gear is installed on the main back shaft of described low pressure stage male rotor, described the second gear is installed on described gear shaft, described the 3rd gear is installed on the main back shaft of described high pressure stage male rotor, described compressible drive mechanism drives described low pressure stage male rotor to turn clockwise, by described driving mechanism, high pressure stage male rotor clockwise direction rotation described in described the 3rd gear driven, the non-through outside that is installed on described the first end cap of described gear shaft.
Described casing is welded by the first casing and the second casing.
Between described body and described the first end cap and the second end cap, be bolted respectively.
Described liquid-spraying pipe is connected with the fraction highly pressurized liquid throttling decompression tube coming from condenser, the position corresponding with described low pressure stage relief opening is provided with low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, spurts into the Fluid Volume of described intermediate pressure mixing chamber by the control of described low pressure stage exhaust gas temperature sensor from described liquid-spraying pipe 1.
The oil leab of described rotatable parts comprises the oil leab of disalignment on the main back shaft of described low pressure stage male rotor, be arranged at the connection main back shaft of described low pressure stage female rotor that described first end covers and lubricant oil low pressure stage first oil duct of the main back shaft bearing hole of described low pressure stage male rotor, be arranged at the connection main back shaft of described high pressure stage female rotor that described first end covers and lubricant oil high pressure stage first oil duct of the main back shaft bearing hole of described high pressure stage male rotor, be arranged at the connection auxiliary back shaft of described low pressure stage female rotor on described the second end cap and lubricant oil low pressure stage second oil duct of the auxiliary back shaft bearing hole of described low pressure stage male rotor, be arranged at the connection auxiliary back shaft of described high pressure stage female rotor on described the second end cap and lubricant oil high pressure stage second oil duct of the auxiliary back shaft bearing hole of described high pressure stage male rotor, be communicated with first of described high pressure stage the first oil duct and low pressure stage the first oil duct and be communicated with ditch, be communicated with second of described lubricant oil low pressure stage the first oil duct and lubricant oil low pressure stage the second oil duct and be communicated with ditch, be communicated with the third connecting ditch of described lubricant oil high pressure stage the first oil duct and lubricant oil high pressure stage the second oil duct, described second is communicated with ditch runs through and is opened near the main back shaft of described low pressure stage female rotor and the auxiliary back shaft place of low pressure stage female rotor, described third connecting ditch runs through and is opened near the main back shaft of described high pressure stage female rotor and the auxiliary back shaft place of high pressure stage female rotor, described oil leab is communicated with described low pressure stage the first oil duct.
The lower end of the oil exit pipe of described oil separator is goed deep under the lubricant oil liquid level in described casing.
Compared with prior art, the beneficial effects of the utility model are:
1, minitype vertical type two-stage screw bolt refrigerant compressor of the present utility model, high pressure stage male rotor, high pressure stage female rotor, low pressure stage male rotor and low pressure stage female rotor are in a body, all component are enclosed in casing, utilize after the fraction highly pressurized liquid throttling step-down of condenser, absorption heat further reduces the temperature of low pressure exhaust, compact structure, take up room little, boundary dimension is little, and refrigerating capacity is little, meets the use needs of the small-sized cryogenic refrigerating system of low temperature test of scientific research aspect.
2, minitype vertical type two-stage screw bolt refrigerant compressor of the present utility model, spurts into the Fluid Volume of intermediate pressure mixing chamber and is automatically controlled by low pressure stage exhaust gas temperature sensor, and it is convenient to control, and uses flexibly.
3, minitype vertical type two-stage screw bolt refrigerant compressor of the present utility model is easy for installation, smooth running, working stability.
Brief description of the drawings
Figure 1 shows that the F-F generalized section in the utility model minitype vertical type two-stage screw bolt refrigerant compressor Fig. 3;
Figure 2 shows that A-A sectional drawing;
Figure 3 shows that B-B sectional drawing;
Figure 4 shows that C-C sectional drawing;
Figure 5 shows that D-D sectional drawing;
Figure 6 shows that E-E sectional drawing.
In figure: 1. liquid-spraying pipe, 2. intermediate pressure mixing chamber, 3. the auxiliary back shaft of low pressure stage male rotor, 4. the second end cap, 5. the second casing, 6. body, 7. the first end cap, 8. gear shaft, 9. the main back shaft of high pressure stage male rotor, 10. the main back shaft of low pressure stage male rotor, 11. rotors, 12. motor stators, 13. oil exit pipes, 14. oil separators, 15. high pressure stage vent connections, the main back shaft of 16. low pressure stage female rotor, 17. first casings, 18. high pressure stage outlet pipes, 19. first clamping bolts, 20. low pressure stage female rotors, 21. second clamping bolts, the auxiliary back shaft of 22. low pressure stage female rotor, 23. high pressure stage air inlet tubes, 24. low pressure stage vent connections, 25. low pressure stage air inlet tubes, the auxiliary back shaft of 26. high pressure stage female rotor, the auxiliary back shaft of 27. high pressure stage male rotor, 28. high pressure stage female rotors, 29. high pressure stage male rotors, 30. oilholes, 31. low pressure stage male rotors, 32. high pressure stage cylinders, 33. low pressure stage cylinders, 34. body bolts hole, 35. high pressure stage oil ducts, 36. low pressure stage oil ducts, 37. high pressure stage exhaust ports, 38. low pressure stage suction ports, the main back shaft of 39. high pressure stage female rotor, 40. first end bonnet bolt holes, 41. high pressure stage relief openings, 42. first gears, 43. second gears, 44. the 3rd gears, 45 low pressure stage intakepories.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The utility model minitype vertical type two-stage screw bolt refrigerant compressor schematic diagram as shown in Figures 1 to 6, comprises the oil leab of casing, body 6, the first end cap 7, the second end cap 4, high pressure stage male rotor 29, high pressure stage female rotor 28, low pressure stage male rotor 31, low pressure stage female rotor 20, compressible drive mechanism, oil separator 14, intermediate pressure mixing chamber 2 and rotatable parts.Described casing is enclosed construction, and in the present embodiment, described casing is welded by the first casing 17 and the second casing 5.Described body 6, the first end cap 7, the second end cap 4, high pressure stage male rotor 29, high pressure stage female rotor 28, low pressure stage male rotor 31, low pressure stage female rotor 20, compressible drive mechanism and oil separator 14 are positioned at described casing inside, the fixed installation that closely cooperates of described body 6 and described casing inner wall, described body 6 two ends respectively with described the first end cap 7 and the second end cap 4 releasable connections, the interior high pressure stage cylinder 32 and the low pressure stage cylinder 33 that run through whole body of being provided with along axial direction of described body 6, the described high pressure stage male rotor 29 and the high pressure stage female rotor 28 that cooperatively interact are installed in described high pressure stage cylinder 32, the described low pressure stage male rotor 31 and the low pressure stage female rotor 20 that cooperatively interact are installed in described low pressure stage cylinder 33, described the first inner position relative with described high pressure stage cylinder 32 of end cap 7 is high pressure stage exhaust cavity, described the first inner position relative with described low pressure stage cylinder 33 of end cap 7 is low pressure stage air aspiration cavity, the both sides of described high pressure stage exhaust cavity are respectively arranged with and the high pressure stage relief opening 41 of described high pressure stage cylinder connection and the high pressure stage exhaust port 37 for being connected with high pressure stage vent connection 15, on described high pressure stage exhaust port 37, be welded to connect high pressure stage vent connection 15, described high pressure stage vent connection 15 is connected with the pressurized gas import of described oil separator 14, on described oil separator 14, be sealedly connected with the high pressure stage outlet pipe 18 through described casing, described high pressure stage outlet pipe 18 is connected with described external condensation device, the both sides of described low pressure stage air aspiration cavity are respectively arranged with the low pressure stage intakeport 45 being communicated with described low pressure stage cylinder 33 and the low pressure stage suction port 38 being communicated with space in casing, a described casing side corresponding with institute low pressure stage suction port 38 is provided with the low pressure stage air inlet tube 25 with described casing internal communication, and described low pressure stage air inlet tube 25 is connected with described external boiler, on described the second end cap 4, the position relative with described high pressure stage cylinder 32 is high pressure stage air aspiration cavity, on described the second end cap 4, the position relative with described low pressure stage cylinder 33 is low pressure stage exhaust cavity, the both sides of described high pressure stage air aspiration cavity are respectively arranged with the high pressure stage intakeport being communicated with described high pressure stage cylinder 32 and the high pressure stage suction port being communicated with described intermediate pressure mixing chamber 2 by high pressure stage air inlet tube 23, the both sides of described low pressure stage exhaust cavity are respectively arranged with the low pressure stage relief opening being communicated with described low pressure stage cylinder 33 and the low pressure stage exhaust port being communicated with described intermediate pressure mixing chamber 2 by low pressure stage vent connection 24, on described casing, be provided with the liquid-spraying pipe 1 being communicated with described intermediate pressure mixing chamber through described casing, described compressible drive mechanism drives described low pressure stage male rotor 31 and described high pressure stage male rotor 29 to rotate along equidirectional, the center line of described body, high pressure stage male rotor, high pressure stage female rotor, low pressure stage male rotor and low pressure stage female rotor is Vertical direction.The radially side that described high pressure stage intakeport is thrown off mutually at described high pressure stage male rotor 29 and the tooth of high pressure stage female rotor 28, the radially side that described high pressure stage relief opening 41 is clogged mutually at described high pressure stage male rotor 29 and the tooth of high pressure stage female rotor 28; The radially side that described low pressure stage intakeport 45 is thrown off mutually at described low pressure stage male rotor 31 and the tooth of low pressure stage female rotor 20, the radially side that described low pressure stage relief opening is clogged mutually at described low pressure stage male rotor 31 and the tooth of low pressure stage female rotor 20.
In the present embodiment, described compressible drive mechanism is drive motor, and the stator 12 of described drive motor and rotor 11 are installed in described casing, and the rotor 11 of described drive motor drives described low pressure stage male rotor 31.
In the present embodiment, the mounting type of each rotor is: the main back shaft 9 of high pressure stage male rotor at described high pressure stage male rotor 29 two ends and the auxiliary back shaft 27 of high pressure stage male rotor are rotatably connected with described the first end cap 7 and the second end cap 4 respectively, main support 9 axles of described high pressure stage male rotor connect described the first end cap 7, non-through described the second end cap 4 of the auxiliary back shaft 27 of described high pressure stage male rotor; The main back shaft 39 of high pressure stage female rotor at described high pressure stage female rotor two ends and the auxiliary back shaft 26 of high pressure stage female rotor are rotatably connected with described the first end cap 7 and the second end cap 4 respectively, non-through described the first end cap 7 of the main back shaft 39 of described high pressure stage female rotor, non-through described the second end cap 4 of the auxiliary back shaft 26 of described high pressure stage female rotor; The main back shaft 10 of low pressure stage male rotor at described low pressure stage male rotor 31 two ends and the auxiliary back shaft 3 of low pressure stage male rotor are rotatably connected with described the first end cap 7 and the second end cap 4 respectively, the main back shaft 10 of described low pressure stage male rotor connects described the first end cap 7, non-through described the second end cap 4 of the auxiliary back shaft 3 of described low pressure stage male rotor; The main back shaft 16 of low pressure stage female rotor at described low pressure stage female rotor 20 two ends and the auxiliary back shaft 22 of low pressure stage female rotor are rotatably connected with described the first end cap 7 and the second end cap 4 respectively, non-through described the first end cap 7 of the main back shaft 16 of described low pressure stage female rotor, non-through described the second end cap 4 of the auxiliary back shaft 22 of described low pressure stage female rotor; The main back shaft 10 of described low pressure stage male rotor is closely connected with the rotor 11 of described drive motor, the main back shaft 10 of described low pressure stage male rotor is connected with the main back shaft 9 of described high pressure stage male rotor by driving mechanism, the rotor 11 of described drive motor drives the main back shaft 10 of described low pressure stage male rotor, and the main back shaft 10 of described low pressure stage male rotor drives the main back shaft 9 of described high pressure stage male rotor.
Driving mechanism between the main back shaft 10 of described low pressure stage male rotor and the main back shaft 9 of described high pressure stage male rotor comprises the first gear 42, the second gear 43, the 3rd gear 44 and gear shaft 8, described the first gear 42 is installed on the main back shaft 10 of described low pressure stage male rotor, described the second gear 43 is installed on described gear shaft 8, described the 3rd gear 44 is installed on the main back shaft 9 of described high pressure stage male rotor, described compressible drive mechanism drives described low pressure stage male rotor 31 to turn clockwise, by described driving mechanism, described the 3rd gear 44 drives described high pressure stage male rotor 29 clockwise direction rotations, the non-through outside that is installed on described the first end cap 7 of described gear shaft 8.
Between described body and described the first end cap 7 and the second end cap 4, be bolted respectively.On the first end cap 7, be provided with multiple first end bonnet bolts hole 40, be provided with the bolt hole corresponding with first end bonnet bolt hole 40 in body 6 side relative with the first end cap, between the first end cap 7 and body 6, be connected by the first clamping bolt 19, be provided with multiple body bolts hole 34 in body 6 side relative with the second end cap, on the second end cap 4, be provided with the bolt hole corresponding with multiple body bolts hole 34, the second end cap 4 is connected by the second clamping bolt 21 with body 6.
Described liquid-spraying pipe 1 is connected with the fraction highly pressurized liquid throttling decompression tube coming from condenser, the position corresponding with described low pressure stage relief opening is provided with low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, spurts into the Fluid Volume of described intermediate pressure mixing chamber 2 by the control of described low pressure stage exhaust gas temperature sensor from described liquid-spraying pipe 1.
The oil leab of described rotatable parts comprises the oil leab 30 of disalignment on the main back shaft 10 of described low pressure stage male rotor, be arranged at the main back shaft 16 of the described low pressure stage female rotor of connection on described the first end cap 7 and lubricant oil low pressure stage first oil duct 36 of main back shaft 10 bearing holes of described low pressure stage male rotor, be arranged at the main back shaft 39 of the described high pressure stage female rotor of connection on described the first end cap 7 and lubricant oil high pressure stage first oil duct 35 of main back shaft 9 bearing holes of described high pressure stage male rotor, be arranged at the auxiliary back shaft 22 of the described low pressure stage female rotor of connection on described the second end cap 4 and lubricant oil low pressure stage second oil duct of auxiliary back shaft 3 bearing holes of described low pressure stage male rotor, be arranged at the auxiliary back shaft 26 of the described high pressure stage female rotor of connection on described the second end cap 4 and lubricant oil high pressure stage second oil duct of auxiliary back shaft 27 bearing holes of described high pressure stage male rotor, be communicated with first of described high pressure stage the first oil duct 35 and low pressure stage the first oil duct 36 and be communicated with ditch 46, be communicated with second of described lubricant oil low pressure stage the first oil duct 36 and lubricant oil low pressure stage the second oil duct and be communicated with ditch 47, be communicated with the third connecting ditch of described lubricant oil high pressure stage the first oil duct and lubricant oil high pressure stage the second oil duct, described second is communicated with ditch 47 runs through and is opened near the main back shaft of described low pressure stage female rotor and the auxiliary back shaft place of low pressure stage female rotor, described third connecting ditch runs through and is opened near the main back shaft of described high pressure stage female rotor and the auxiliary back shaft place of high pressure stage female rotor, described oil leab 30 is communicated with described low pressure stage the first oil duct.
In the process of rotating at the main back shaft 10 of low pressure stage male rotor, due to the effect of centrifugal force, lubricant oil enters oil leab 30, by other oil ducts of oil leab of the rotatable parts that are communicated with, the lubricated part surface of running mutually.
The lower end of the oil exit pipe 13 of described oil separator 14 is goed deep under the lubricant oil liquid level in described casing.
When assembling, first low pressure stage air inlet tube 25 is inserted to the respective aperture position of the first casing 17, and be welded to connect, rotor 11, motor stator 12 are put into the first casing 17 location to be fixed, the oil separator 14 that has welded oil exit pipe 13, high pressure stage vent connection 15 and high pressure stage outlet pipe 18 is put into the first casing 17 location and fix, high pressure stage outlet pipe 18 passes the first casing 17 and welds with the first casing 17, after being worked good, high pressure stage female rotor 28 and high pressure stage male rotor 29 put into high pressure stage cylinder 32, after being worked good, low pressure stage female rotor 20 and low pressure stage male rotor 31 put into low pressure stage cylinder 33, the second end cap 4 is aimed at body 6, the middle sealing gasket of placing, the auxiliary back shaft 22 of low pressure stage female rotor, the auxiliary back shaft 3 of low pressure stage male rotor, the auxiliary back shaft 26 of high pressure stage female rotor and the auxiliary back shaft 27 of high pressure stage male rotor are coordinated with corresponding bearing hole respectively, and fix through the second bolt of cover hole by the second clamping bolt 21, the first end cap 7 is aimed at body 6, the middle sealing gasket of placing, make the corresponding bearing hole of the main back shaft 9 of the main back shaft 10 of low pressure stage male rotor and high pressure stage male rotor through the first end cap 7, the main back shaft 16 of low pressure stage female rotor and the main back shaft 39 of high pressure stage female rotor coordinate with bearing hole simultaneously, fixing through first end bonnet bolt hole 40 by the first clamping bolt 19, gear shaft 8 is coordinated with the corresponding bearing hole of the first end cap 7, main to the first gear 42 and low pressure stage male rotor back shaft 10 is coordinated to installation, and the second gear 43 coordinates installation with gear shaft 8, and the 3rd gear 44 coordinates installation with the main back shaft 9 of high pressure stage male rotor, the vertical rotor 11 that inserts of the main back shaft 10 of low pressure stage male rotor that above-mentioned mounted entirety is stretched out, welds the high pressure stage exhaust port of the first end cap 7 37 and high pressure stage vent connection 15, liquid-spraying pipe 1 will have been welded, the intermediate pressure mixing chamber 2 of high pressure stage air inlet tube 23 and low pressure stage vent connection 24, again the high pressure stage suction port on high pressure stage air inlet tube 23 and the second end cap 4 is welded to connect, low pressure stage exhaust port on low pressure stage vent connection 24 and the second end cap 4 is welded to connect, in the first casing 17, be filled with the lubricant oil calculating, the second casing 5 is aimed at the first casing 17, make liquid-spraying pipe 1 through the second corresponding hole of casing 5 welding, weld the second casing 5 and the first casing 17, so far, minitype vertical type two-stage screw bolt refrigerant compressor has been assembled.
When use, low pressure stage air inlet tube 25 is connected with vaporizer, high pressure stage outlet pipe 18 is connected with condenser, the refrigerant vapor of the low-temp low-pressure that vaporizer comes, the space entering in casing through low pressure stage air inlet tube 25, after motor is cooled, through the low pressure stage suction port 38 on the first end cap 7, low pressure stage air aspiration cavity and low pressure stage intakeport, enter by the first end cap 7, the second end cap 4, low pressure stage female rotor 20, between cog volume space between low pressure stage male rotor 31 and low pressure stage cylinder 33, after compression pressure raises, through the low pressure stage relief opening on the second end cap 4, low pressure stage exhaust cavity and low pressure stage vent connection 24 enter intermediate pressure mixing chamber 2, the fraction highly pressurised liquid attracting from condenser enters in intermediate pressure mixing chamber 2 through liquid-spraying pipe 1 after reducing pressure by regulating flow sprays, spurt into the liquid heat absorption evaporation in fluid, mix with the low pressure stage exhaust of low pressure stage vent connection 24, through high pressure stage air inlet tube 23, high pressure stage air aspiration cavity on the second end cap 4 and high pressure stage intakeport, enter by the first end cap 7, the second end cap 4, high pressure stage female rotor 28, between cog volume space between high pressure stage male rotor 29 and high pressure stage cylinder 32, after compression pressure raises, through the high pressure stage relief opening on the first end cap 7, high pressure stage exhaust cavity and high pressure stage vent connection 15 enter oil separator 14, isolated pressurized gas process high pressure stage outlet pipe 18 is discharged to condenser, the isolated lubricant oil of oil separator 14 enters in the lubricating oil bath of the first casing 17 bottoms through oil exit pipe 13, lubricant oil in lubricating oil bath is through the eccentric oilhole 30 of the main back shaft 10 of low pressure stage male rotor, under the effect of centrifugal force, oil leab 30 through the main back shaft 10 of low pressure stage male rotor enters low pressure stage the first oil duct, enter again in the oil groove in the first end cap 7 and the second end cap 4 the lubricated part surface of running mutually.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a minitype vertical type two-stage screw bolt refrigerant compressor, it is characterized in that, the oil leab that comprises casing, body (6), the first end cap (7), the second end cap (4), high pressure stage male rotor (29), high pressure stage female rotor (28), low pressure stage male rotor (31), low pressure stage female rotor (20), compressible drive mechanism, oil separator (14), intermediate pressure mixing chamber (2) and rotatable parts, described casing is enclosed construction, described body (6), the first end cap (7), the second end cap (4), high pressure stage male rotor (29), high pressure stage female rotor (28), low pressure stage male rotor (31), low pressure stage female rotor (20), compressible drive mechanism and oil separator (14) are positioned at described casing inside, the fixed installation that closely cooperates of described body (6) and described casing inner wall, described body (6) two ends respectively with described the first end cap (7) and the second end cap (4) releasable connection, in described body (6), be provided with along axial direction the high pressure stage cylinder (32) and the low pressure stage cylinder (33) that run through whole body, the described high pressure stage male rotor (29) and the high pressure stage female rotor (28) that cooperatively interact are installed in described high pressure stage cylinder (32), the described low pressure stage male rotor (31) and the low pressure stage female rotor (20) that cooperatively interact are installed in described low pressure stage cylinder (33), the inner position relative with described high pressure stage cylinder (32) of described the first end cap (7) is high pressure stage exhaust cavity, the inner position relative with described low pressure stage cylinder (33) of described the first end cap (7) is low pressure stage air aspiration cavity, the both sides of described high pressure stage exhaust cavity are respectively arranged with and the high pressure stage relief opening (41) of described high pressure stage cylinder connection and the high pressure stage exhaust port (37) for being connected with high pressure stage vent connection (15), on described high pressure stage exhaust port (37), be sealedly connected with described high pressure stage vent connection (15), described high pressure stage vent connection (15) is connected with the pressurized gas import of described oil separator (14), on described oil separator (14), be sealedly connected with the high pressure stage outlet pipe (18) through described casing, described high pressure stage outlet pipe (18) is connected with external condensation device, the both sides of described low pressure stage air aspiration cavity are respectively arranged with the low pressure stage intakeport (45) that is communicated with described low pressure stage cylinder (33) and the low pressure stage suction port (38) for being communicated with space in described casing, a described casing side corresponding with institute's low pressure stage suction port (38) is provided with the low pressure stage air inlet tube (25) with described casing internal communication, and described low pressure stage air inlet tube (25) is connected with described external boiler, the upper position relative with described high pressure stage cylinder (32) of described the second end cap (4) is high pressure stage air aspiration cavity, the upper position relative with described low pressure stage cylinder (33) of described the second end cap (4) is low pressure stage exhaust cavity, the both sides of described high pressure stage air aspiration cavity are respectively arranged with the high pressure stage intakeport being communicated with described high pressure stage cylinder (32) and the high pressure stage suction port being communicated with described intermediate pressure mixing chamber (2) by high pressure stage air inlet tube (23), the both sides of described low pressure stage exhaust cavity are respectively arranged with the low pressure stage relief opening being communicated with described low pressure stage cylinder (33) and the low pressure stage exhaust port being communicated with described intermediate pressure mixing chamber (2) by low pressure stage vent connection (24), on described casing, be provided with the liquid-spraying pipe (1) being communicated with described intermediate pressure mixing chamber through described casing, described compressible drive mechanism drives described low pressure stage male rotor (31) and described high pressure stage male rotor (29) to rotate along equidirectional, the center line of described body, high pressure stage male rotor, high pressure stage female rotor, low pressure stage male rotor and low pressure stage female rotor is Vertical direction, the radially side that described high pressure stage intakeport is thrown off mutually at described high pressure stage male rotor (29) and the tooth of high pressure stage female rotor (28), the radially side that described high pressure stage relief opening (41) is clogged mutually at described high pressure stage male rotor (29) and the tooth of high pressure stage female rotor (28), the radially side that described low pressure stage intakeport (45) is thrown off mutually at described low pressure stage male rotor (31) and the tooth of low pressure stage female rotor (20), the radially side that described low pressure stage relief opening is clogged mutually at described low pressure stage male rotor (31) and the tooth of low pressure stage female rotor (20).
2. minitype vertical type two-stage screw bolt refrigerant compressor according to claim 1, it is characterized in that, described compressible drive mechanism is drive motor, stator (12) and the rotor (11) of described drive motor are installed in described casing, and the rotor of described drive motor (11) drives described low pressure stage male rotor (31).
3. minitype vertical type two-stage screw bolt refrigerant compressor according to claim 2, it is characterized in that, the main back shaft of high pressure stage male rotor (9) at described high pressure stage male rotor (29) two ends and the auxiliary back shaft of high pressure stage male rotor (27) are rotatably connected with described the first end cap (7) and the second end cap (4) respectively, the main support of described high pressure stage male rotor (9) axle connects described the first end cap (7), non-through described the second end cap of the auxiliary back shaft of described high pressure stage male rotor (27) (4); The main back shaft of high pressure stage female rotor (39) at described high pressure stage female rotor two ends and the auxiliary back shaft of high pressure stage female rotor (26) are rotatably connected with described the first end cap (7) and the second end cap (4) respectively, non-through described the first end cap of the main back shaft of described high pressure stage female rotor (39) (7), non-through described the second end cap of the auxiliary back shaft of described high pressure stage female rotor (26) (4); The main back shaft of low pressure stage male rotor (10) at described low pressure stage male rotor (31) two ends and the auxiliary back shaft of low pressure stage male rotor (3) are rotatably connected with described the first end cap (7) and the second end cap (4) respectively, the main back shaft of described low pressure stage male rotor (10) connects described the first end cap (7), non-through described the second end cap of the auxiliary back shaft of described low pressure stage male rotor (3) (4); The main back shaft of low pressure stage female rotor (16) at described low pressure stage female rotor (20) two ends and the auxiliary back shaft of low pressure stage female rotor (22) are rotatably connected with described the first end cap (7) and the second end cap (4) respectively, non-through described the first end cap of the main back shaft of described low pressure stage female rotor (16) (7), non-through described the second end cap of the auxiliary back shaft of described low pressure stage female rotor (22) (4); The main back shaft of described low pressure stage male rotor (10) is closely connected with the rotor (11) of described drive motor, the main back shaft of described low pressure stage male rotor (10) is connected with the main back shaft of described high pressure stage male rotor (9) by driving mechanism, the rotor (11) of described drive motor drives the main back shaft of described low pressure stage male rotor (10), and the main back shaft of described low pressure stage male rotor (10) drives the main back shaft of described high pressure stage male rotor (9).
4. minitype vertical type two-stage screw bolt refrigerant compressor according to claim 3, it is characterized in that, driving mechanism between the main back shaft (9) of the main back shaft of described low pressure stage male rotor (10) and described high pressure stage male rotor comprises the first gear (42), the second gear (43), the 3rd gear (44) and gear shaft (8), described the first gear (42) is installed on the main back shaft (10) of described low pressure stage male rotor, described the second gear (43) is installed on described gear shaft (8), described the 3rd gear (44) is installed on the main back shaft (9) of described high pressure stage male rotor, described compressible drive mechanism drives described low pressure stage male rotor (31) to turn clockwise, by described driving mechanism, described the 3rd gear (44) drives the rotation of described high pressure stage male rotor (29) clockwise direction, the non-through outside that is installed on described the first end cap (7) of described gear shaft (8).
5. according to the minitype vertical type two-stage screw bolt refrigerant compressor described in any one in claim 1 to 4, it is characterized in that, described casing is welded by the first casing and the second casing.
6. minitype vertical type two-stage screw bolt refrigerant compressor according to claim 5, is characterized in that, between described body and described the first end cap and the second end cap, is bolted respectively.
7. minitype vertical type two-stage screw bolt refrigerant compressor according to claim 6, it is characterized in that, described liquid-spraying pipe (1) is connected with the fraction highly pressurized liquid throttling decompression tube coming from condenser, the position corresponding with described low pressure stage relief opening is provided with low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, spurts into the Fluid Volume of described intermediate pressure mixing chamber by the control of described low pressure stage exhaust gas temperature sensor from described liquid-spraying pipe (1).
8. minitype vertical type two-stage screw bolt refrigerant compressor according to claim 7, it is characterized in that, the oil leab of described rotatable parts comprises the oil leab (30) of the upper disalignment of the main back shaft of described low pressure stage male rotor (10), be arranged at the connection main back shaft of described low pressure stage female rotor (16) on described the first end cap (7) and lubricant oil low pressure stage first oil duct (36) of the main back shaft of described low pressure stage male rotor (10) bearing hole, be arranged at the connection main back shaft of described high pressure stage female rotor (39) on described the first end cap (7) and lubricant oil high pressure stage first oil duct (35) of the main back shaft of described high pressure stage male rotor (9) bearing hole, be arranged at the connection auxiliary back shaft of described low pressure stage female rotor (22) on described the second end cap (4) and lubricant oil low pressure stage second oil duct of the auxiliary back shaft of described low pressure stage male rotor (3) bearing hole, be arranged at the connection auxiliary back shaft of described high pressure stage female rotor (26) on described the second end cap 4 and lubricant oil high pressure stage second oil duct of the auxiliary back shaft of described high pressure stage male rotor (27) bearing hole, be communicated with first of described high pressure stage the first oil duct (35) and low pressure stage the first oil duct (36) and be communicated with ditch (46), be communicated with second of described lubricant oil low pressure stage the first oil duct (36) and lubricant oil low pressure stage the second oil duct and be communicated with ditch (47), be communicated with the third connecting ditch of described lubricant oil high pressure stage the first oil duct and lubricant oil high pressure stage the second oil duct, described second is communicated with ditch (47) runs through and is opened near the main back shaft of described low pressure stage female rotor and the auxiliary back shaft place of low pressure stage female rotor, described third connecting ditch runs through and is opened near the main back shaft of described high pressure stage female rotor and the auxiliary back shaft place of high pressure stage female rotor, described oil leab (30) is communicated with described low pressure stage the first oil duct.
9. minitype vertical type two-stage screw bolt refrigerant compressor according to claim 8, is characterized in that, the lower end of the oil exit pipe (13) of described oil separator (14) is goed deep under the lubricant oil liquid level in described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523459.0U CN203655638U (en) | 2013-08-26 | 2013-08-26 | Miniature vertical type two-stage threaded rod refrigeration compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523459.0U CN203655638U (en) | 2013-08-26 | 2013-08-26 | Miniature vertical type two-stage threaded rod refrigeration compressor |
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| Publication Number | Publication Date |
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| CN203655638U true CN203655638U (en) | 2014-06-18 |
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| CN201320523459.0U Expired - Fee Related CN203655638U (en) | 2013-08-26 | 2013-08-26 | Miniature vertical type two-stage threaded rod refrigeration compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134600A (en) * | 2015-09-29 | 2015-12-09 | 天津商业大学 | Vertical all-sealed double-stage compression internal transmission rotary compressor |
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2013
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134600A (en) * | 2015-09-29 | 2015-12-09 | 天津商业大学 | Vertical all-sealed double-stage compression internal transmission rotary compressor |
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