CN103410729B - Horizontal fully-closed two-stage screw refrigeration compressor - Google Patents
Horizontal fully-closed two-stage screw refrigeration compressor Download PDFInfo
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- CN103410729B CN103410729B CN201310375942.3A CN201310375942A CN103410729B CN 103410729 B CN103410729 B CN 103410729B CN 201310375942 A CN201310375942 A CN 201310375942A CN 103410729 B CN103410729 B CN 103410729B
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Abstract
The invention discloses a horizontal fully-closed two-stage screw refrigeration compressor which is compact in structure, small in appearance size and low in space occupation. The compressor comprises a first end cover, a second end cover, a high-pressure-stage male rotor, a high-pressure-stage female rotor, a low-pressure-stage male rotor, a low-pressure-stage female rotor, a compression driving mechanism, an oil separator, a lubricating oil passage of rotating components, a machine shell and a machine body, wherein the machine shell is of a closed structure, and the machine body, the first end cover, the second end cover, the high-pressure-stage male rotor, the high-pressure-stage female rotor, the low-pressure-stage male rotor, the low-pressure-stage female rotor, the compression driving mechanism and the oil separator are located inside the machine shell; the two ends of the machine body are detachably connected with the first end cover and the second end cover respectively; and a high-pressure-stage gas cylinder and a low-pressure-stage gas cylinder which penetrate through the whole machine body are arranged in the machine body along the axial direction. The compressor disclosed by the invention has the advantages of compact structure, convenience in mounting, small appearance size, high operating performance, steadiness in operation and stability in work.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of horizontal totally-enclosed two-stage screw bolt refrigerant compressor.
Background technique
Low temperature test in the production, scientific research of the industrial products such as oil, chemical industry, light industry, medicine, needs low temperature environment in a lot of situation such as low temperature process, storage of food, aquatic products.Due to the advantage that Spiral Lobe Refrigeration Compressor has, its using scope constantly increases, and is subject to the favor of user.
The two-stage screw bolt refrigerant compressor of existing cryogenic freezing cold storage refrigeration system is mostly opening type, and high and low pressure stage compressor is single stage compressor combo, or adopts single machine two-stage formula, and refrigerating capacity is comparatively large, boundary dimension is large.And for the small-sized cryogenic refrigerating system of low temperature test of scientific research aspect, be then difficult to choose suitable two-stage screw bolt refrigerant compressor.Therefore, urgently development is stablized, compact structure, boundary dimension are little, take up space little two-stage screw bolt refrigerant compressor.
Summary of the invention
The object of the invention is the technological deficiency existed for prior art, provide that a kind of compact structure, boundary dimension are little, take up space little horizontal totally-enclosed two-stage screw bolt refrigerant compressor.
The technological scheme adopted for realizing object of the present invention is:
A kind of horizontal totally-enclosed two-stage screw bolt refrigerant compressor, comprise 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, the oil leab of rotatable parts, casing and body, 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 internal; Described body and described casing inner wall closely cooperate and fixedly mount, described body two ends respectively with described first end cap and the second end cap releasable connection; The high pressure stage cylinder and low pressure stage cylinder that run through whole body is provided with in the axial direction in described body, the described high pressure stage male rotor and high pressure stage female rotor that cooperatively interact are installed in described high pressure stage cylinder, the described low pressure stage male rotor and 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 first end cap 7 is high pressure stage air aspiration cavity, the position that described first cover internal is relative with described low pressure stage cylinder is low pressure stage exhaust cavity, described high pressure stage air aspiration cavity both sides are respectively arranged with the high pressure stage suction port be communicated with described casing internal space and the high pressure stage intakeport be communicated with described high pressure stage cylinder, and described low pressure stage exhaust cavity both sides are respectively arranged with the low pressure stage exhaust port be communicated with described casing internal space and the low pressure stage relief opening be communicated with described low pressure stage cylinder; The position that described second cover internal is relative with described high pressure stage cylinder is high pressure stage exhaust cavity, and the position that described second cover internal is relative with described low pressure stage cylinder is low pressure stage air aspiration cavity; Described high pressure stage exhaust cavity both sides are respectively arranged with the high pressure stage relief opening that is communicated with described high pressure stage cylinder and the high pressure stage exhaust port for being connected with described high pressure stage vent connection, described high pressure stage exhaust port is 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, described oil separator is sealedly connected with oil exit pipe and the high pressure stage outlet pipe through described casing, described high pressure stage outlet pipe is connected with described external condensation device; Described low pressure stage air aspiration cavity both sides are respectively arranged with and the low pressure stage suction port for being connected with low pressure stage air inlet tube and the low pressure stage intakeport that is communicated with described low pressure stage cylinder; Described low pressure stage suction port is welded to connect the low pressure stage air inlet tube through described casing, described low pressure stage air inlet tube is connected with described external boiler; The described casing side corresponding with described high pressure stage suction port is provided with the liquid-spraying pipe 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 substantially horizontal; The radial 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 radial 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 radial 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 radial 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 stators and rotators of described drive motor is 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 first end cap and the second end cap respectively, through described first end cap of the main back shaft of described high pressure stage male rotor, non-through described second end cap of the auxiliary back shaft of described high pressure stage; 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 first end cap and the second end cap respectively, non-through described first end cap of the main back shaft of described high pressure stage female rotor, non-through described 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 first end cap and the second end cap respectively, through described first end cap of the main back shaft of described low pressure stage male rotor, non-through described 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 first end cap and the second end cap respectively, non-through described first end cap of the main back shaft of described low pressure stage female rotor, non-through described second end cap of the auxiliary back shaft of described low pressure stage female rotor; The rotor compact siro spinning technology of the main back shaft of described low pressure stage male rotor and 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 the main back shaft of described low pressure stage male rotor and described high pressure stage male rotor comprises the first gear, second gear, 3rd gear and gear shaft, described first gear is installed on the main back shaft of described low pressure stage male rotor, described second gear is installed on described gear shaft, described 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 described in described 3rd gear driven rotates, the non-through outside being installed on described first end cap of described gear shaft.
The minimum position of described second gear is more lower slightly than the oil surface level of lubricant oil in described casing, and the minimum position of described second gear is goed deep in the lubricant oil of described casing bottom.
Described casing is welded by the first casing and the second casing.
Described body is connected respectively by bolt with between described first end cap and the second end cap.
Described liquid-spraying pipe is connected with the fraction highly pressurized liquid throttling decompression tube come from condenser, the position corresponding with described low pressure stage exhaust port is provided with low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, controls by described low pressure stage exhaust gas temperature sensor the Fluid Volume spurting into described casing from described liquid-spraying pipe 1.
The main back shaft of described low pressure stage male rotor is provided with oil collecting hole, one end of fuel supply line and the outlet of described oil exit pipe are welded to connect, oil supply hole on the other end of described fuel supply line and described second end cap is welded to connect, 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 lubricant oil low pressure stage first oil duct of the main back shaft of connection described low pressure stage female rotor that described first end covers and the main back shaft bearing hole of described low pressure stage male rotor, be arranged at lubricant oil high pressure stage first oil duct of the main back shaft of connection described high pressure stage female rotor that described first end covers and the main back shaft bearing hole of described high pressure stage male rotor, be arranged at lubricant oil low pressure stage second oil duct of the auxiliary back shaft of connection described low pressure stage female rotor on described second end cap and the auxiliary back shaft bearing hole of described low pressure stage male rotor, be arranged at lubricant oil high pressure stage second oil duct of the auxiliary back shaft of connection described high pressure stage female rotor on described second end cap and the auxiliary back shaft bearing hole of described high pressure stage male rotor, be communicated with described lubricant oil high pressure stage second oil duct and be communicated with ditch with second of lubricant oil low pressure stage second oil duct, and connection lubricant oil high pressure stage first oil duct is communicated with ditch with first of lubricant oil high pressure stage second oil duct, described first is communicated with ditch runs through the main back shaft and the auxiliary back shaft place of high pressure stage female rotor that are opened near described high pressure stage female rotor, described oil leab is communicated with described lubricant oil low pressure stage first oil duct, oil supply hole on described second end cap is communicated with described low pressure stage second oil duct, the isolated parts of lubricating oil of described oil separator enters in the lubricating oil bath of described casing bottom through oil exit pipe, the isolated parts of lubricating oil of described oil separator enters described low pressure stage second oil duct through described fuel supply line.
Described high pressure stage suction port is welded with the adapter of high pressure stage air-breathing.
Compared with prior art, the invention has the beneficial effects as follows:
1, horizontal totally-enclosed two-stage screw bolt refrigerant compressor of the present invention, 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, after utilizing the fraction highly pressurized liquid throttling step-down of condenser, absorb the temperature that heat reduces low pressure exhaust further, compact structure, take up room little, boundary dimension is little, and refrigerating capacity is little, meets the use needs of low temperature test with small-sized cryogenic refrigerating system of scientific research aspect.
2, horizontal totally-enclosed two-stage screw bolt refrigerant compressor of the present invention is easy for installation, smooth running, working stability.
3, horizontal totally-enclosed two-stage screw bolt refrigerant compressor of the present invention, the Fluid Volume spurted in casing is controlled automatically by low pressure stage exhaust gas temperature sensor, and it is convenient to control, and uses flexibly.
Accompanying drawing explanation
Figure 1 shows that the horizontal totally-enclosed two-stage screw bolt refrigerant compressor F-F generalized section of the present invention;
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. oil collecting hole, 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 exhaust ports, 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. oil leabs, 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 relief openings, 38. low pressure stage intakepories, the main back shaft of 39. high pressure stage female rotor, 40. first end bonnet bolt holes, 41. high pressure stage intakepories, 42. first gears, 43. second gears, 44. the 3rd gears, 45. low pressure stage relief openings, 46. fuel supply lines.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The horizontal totally-enclosed two-stage screw bolt refrigerant compressor schematic diagram of the present invention as shown in Figures 1 to 6, comprises the oil leab of casing, body 6, first end cap 7, 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 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 first end cap 7 and the second end cap 4 are cast inblock.Described body 6, first end cap 7, 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 internal; Described body 6 and described casing inner wall closely cooperate and fixedly mount, described body 6 two ends respectively with described first end cap 7 and the second end cap 4 releasable connection; The high pressure stage cylinder 32 running through whole body and low pressure stage cylinder 33 is provided with in the axial direction in described body 6, the described high pressure stage male rotor 29 and 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 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 first end cap 7 is high pressure stage air aspiration cavity, the inner position relative with described low pressure stage cylinder 33 of described first end cap 7 is low pressure stage exhaust cavity, described high pressure stage air aspiration cavity both sides are respectively arranged with the high pressure stage suction port be communicated with described casing internal space and the high pressure stage intakeport 41 be communicated with described high pressure stage cylinder 32, and described low pressure stage exhaust cavity both sides are respectively arranged with the low pressure stage exhaust port 24 be communicated with described casing internal space and the low pressure stage relief opening 45 be communicated with described low pressure stage cylinder 33; The inner position relative with described high pressure stage cylinder 32 of described second end cap 4 is high pressure stage exhaust cavity, and the inner position relative with described low pressure stage cylinder 33 of described second end cap 4 is low pressure stage air aspiration cavity; Described high pressure stage exhaust cavity both sides are respectively arranged with the high pressure stage relief opening 37 that is communicated with described high pressure stage cylinder 32 and the high pressure stage exhaust port for being connected with high pressure stage vent connection 15, described high pressure stage exhaust port is sealedly connected with 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, described oil separator 14 is sealedly connected with oil exit pipe 13 and the high pressure stage outlet pipe 18 through described casing, described high pressure stage outlet pipe 18 is connected with condenser; The low pressure stage intakeport 38 that described low pressure stage air aspiration cavity both sides are respectively arranged with the low pressure stage suction port for being connected with low pressure stage air inlet tube 25 and are communicated with described low pressure stage cylinder; Described low pressure stage suction port is welded to connect the low pressure stage air inlet tube 25 through described casing, described low pressure stage air inlet tube 25 is connected with described external boiler.The described casing side corresponding with described high pressure stage suction port is provided with the liquid-spraying pipe 1 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 substantially horizontal.The radial side that described high pressure stage intakeport 41 is thrown off with the tooth of high pressure stage female rotor 28 mutually at described high pressure stage male rotor 29, the radial side that described high pressure stage relief opening 37 is clogged with the tooth of high pressure stage female rotor 28 mutually at described high pressure stage male rotor 29; The radial side that described low pressure stage intakeport 38 is thrown off with the tooth of low pressure stage female rotor 20 mutually at described low pressure stage male rotor 31, the radial side that described low pressure stage relief opening 45 is clogged with the tooth of low pressure stage female rotor 20 mutually at described low pressure stage male rotor 31.
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 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 first end cap 7 and the second end cap 4 respectively, through described first end cap 7 of described high pressure stage male rotor main support 9 axle, non-through described second end cap 4 of the auxiliary back shaft of described high pressure stage 27; 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 first end cap 7 and the second end cap 4 respectively, non-through described first end cap 7 of the main back shaft of high pressure stage female rotor 39, non-through described second end cap 4 of the auxiliary back shaft of described high pressure stage female rotor 26.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 first end cap 7 and the second end cap 4 respectively, through described first end cap 7 of the main back shaft of described low pressure stage male rotor 10, non-through described second end cap 4 of the auxiliary back shaft of described low pressure stage male rotor 3; 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 first end cap 7 and the second end cap 4 respectively, non-through described first end cap 7 of the main back shaft of described low pressure stage female rotor 16, non-through described second end cap 4 of the auxiliary back shaft of described low pressure stage female rotor 22; Rotor 11 compact siro spinning technology of the main back shaft of described low pressure stage male rotor 10 and described drive motor, the main back shaft of described low pressure stage male rotor 10 is connected with the main back shaft 9 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 9 of described high pressure stage male rotor.
Driving mechanism between the main back shaft of described low pressure stage male rotor 10 and the main back shaft 9 of described high pressure stage male rotor can adopt the various ways of prior art.In the present embodiment, driving mechanism between the main back shaft of described low pressure stage male rotor 10 and the main back shaft 9 of described high pressure stage male rotor comprises the first gear 42, second gear 43, 3rd gear 44 and gear shaft 8, described first gear 42 is installed on the main back shaft 10 of described low pressure stage male rotor, described second gear 43 is installed on described gear shaft 8, described 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 3rd gear 44 drives described high pressure stage male rotor 29 clockwise direction to rotate.The non-through outside being installed on described first end cap 7 of described gear shaft 8.
For the ease of realizing the lubrication of rotatable parts, the minimum position of described second gear is more lower slightly than the oil surface level of lubricant oil in described casing, and the minimum position of described second gear is goed deep in the lubricant oil of described casing bottom.
In the present embodiment, described body 6 is connected respectively by bolt with between described first end cap 7 and the second end cap 4.First end cap 7 is provided with multiple first end bonnet bolt hole 40, the bolt hole corresponding with first end bonnet bolt hole 40 is provided with in the side that body 6 is relative with the first end cap, first end cap 7 is connected by the first clamping bolt 19 with between body 6, the side that body 6 is relative with the second end cap is provided with multiple body bolt hole 34, second end cap 4 is provided with the bolt hole corresponding with multiple body bolt hole 34, and 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 come from condenser, the position corresponding with described low pressure stage exhaust port is provided with low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, controls by described low pressure stage exhaust gas temperature sensor the Fluid Volume spurting into described casing from described liquid-spraying pipe 1.
The main back shaft 10 of described low pressure stage male rotor is provided with oil collecting hole 2, one end of fuel supply line 46 and the outlet of described oil exit pipe 13 are welded to connect, oil supply hole on the other end of described fuel supply line 46 and described second end cap 4 is welded to connect, 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 lubricant oil low pressure stage first oil duct 36 of the main back shaft of connection described low pressure stage female rotor 16 on described first end cap 7 and described low pressure stage male rotor main back shaft 10 bearing hole, be arranged at lubricant oil high pressure stage first oil duct 35 of the main back shaft of connection described high pressure stage female rotor 39 on described first end cap 7 and described high pressure stage male rotor main back shaft 9 bearing hole, be arranged at lubricant oil low pressure stage second oil duct of the auxiliary back shaft of connection described low pressure stage female rotor 22 on described second end cap 4 and described low pressure stage male rotor auxiliary back shaft 3 bearing hole, be arranged at lubricant oil high pressure stage second oil duct of the auxiliary back shaft of connection described high pressure stage female rotor 26 on described second end cap 4 and described high pressure stage male rotor auxiliary back shaft 27 bearing hole, be communicated with described lubricant oil high pressure stage second oil duct and be communicated with ditch 47 with second of lubricant oil low pressure stage second oil duct, and connection lubricant oil high pressure stage first oil duct 35 is communicated with ditch with first of lubricant oil high pressure stage second oil duct, described first is communicated with ditch runs through the main back shaft and the auxiliary back shaft place of high pressure stage female rotor that are opened near described high pressure stage female rotor, described oil leab 30 is communicated with described lubricant oil low pressure stage first oil duct 36, oil supply hole on described second end cap 4 is communicated with described low pressure stage second oil duct, the isolated parts of lubricating oil of described oil separator 14 enters through oil exit pipe 13 in the lubricating oil bath of described casing bottom, the isolated parts of lubricating oil of described oil separator 14 enters described low pressure stage second oil duct through described fuel supply line 46.
Described high pressure stage suction port is welded with high pressure stage air-breathing adapter 23.
During assembling, first liquid-spraying pipe 1 is inserted the hole of the relevant position of the first casing 17, and be welded to connect, by the rotor 11 of drive motor, stator 12 is put into the first casing 17 location and is fixed, high pressure stage cylinder 32 is put into after high pressure stage female rotor 28 and high pressure stage male rotor 29 being worked good, low pressure stage cylinder 33 is put into after low pressure stage female rotor 20 and low pressure stage male rotor 31 being worked good, second end cap 4 is aimed at body 6, middle placement sealing gasket, make 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 of high pressure stage female rotor 26 and the auxiliary back shaft of high pressure stage male rotor 27 coordinate with corresponding bearing hole respectively, and fixed through the bolt hole on the second end cap by the second clamping bolt 21, first end cap 7 is aimed at body 6, middle placement sealing gasket, the main back shaft of low pressure stage male rotor 10 and the main back shaft of high pressure stage male rotor 9 is made to pass the corresponding bearing hole of the first end cap 7, the main back shaft of low pressure stage female rotor 16 and the main back shaft 39 of high pressure stage female rotor coordinate with bearing hole simultaneously, fixed through first end bonnet bolt hole 40 by the first clamping bolt 19, the corresponding bearing hole of gear shaft 8 to the first end cap 7 is coordinated, main to first gear 42 and low pressure stage male rotor back shaft 10 is coordinated installation, and the second gear 43 coordinates with gear shaft 8 to be installed, and the 3rd gear 44 coordinates with the main back shaft 9 of high pressure stage male rotor to be installed, welded with high pressure stage air-breathing adapter 23 by the high pressure stage suction port of the first end cap 7, low pressure stage male rotor main back shaft 10 level of above-mentioned mounted entirety being stretched out inserts the rotor 11 of drive motor, the corresponding aperture of oil separator 14 is welded oil exit pipe 13, high pressure stage vent connection 15 and high pressure stage outlet pipe 18, the exit position of one end of fuel supply line 46 with oil exit pipe 13 is welded, the other end welds with the oil supply hole of the second end cap 4, low pressure stage air inlet tube 25 is welded on the position of low pressure stage air inlet tube 25 corresponding aperture on the second end cap 4, high pressure stage vent connection 15 is welded on the corresponding position of high pressure stage exhaust port on the second end cap 4, and low pressure stage air inlet tube 25 and high pressure stage outlet pipe 18 are passed the second casing 5 and weld with the second casing 5, be filled with the lubricant oil calculated in casing, aimed at the first casing 17 by the second casing 5 and be welded to connect, so far, horizontal totally-enclosed two-stage screw bolt refrigerant compressor has been assembled.
During use, low pressure stage air inlet tube 25 is connected with vaporizer, and high pressure stage outlet pipe 18 is connected with condenser, and liquid-spraying pipe 1 is connected with the fraction highly pressurized liquid throttling decompression tube come from condenser.The refrigerant vapor of the low-temp low-pressure that vaporizer comes, the low pressure stage air aspiration cavity on the second end cap 4 is entered through low pressure stage air inlet tube 25, enter by the first end cap 7, second end cap 4, low pressure stage female rotor 20, inter-tooth volume space between low pressure stage male rotor 31 and low pressure stage cylinder 33 through low pressure stage intakeport, after compression pressure raises, the low pressure stage relief opening 45 on the first end cap 7, low pressure stage exhaust cavity and low pressure stage exhaust port 24 enter in casing.The fraction highly pressurised liquid attracted from condenser enters in casing through liquid-spraying pipe 1 after reducing pressure by regulating flow, spurt into the liquid heat absorption evaporation in the fluid in casing, be vented with low pressure stage and mix, through high pressure stage air inlet tube 23, high pressure stage air aspiration cavity on first end cap 7, high pressure stage intakeport 41 enters by the first end cap 7, second end cap 4, high pressure stage female rotor 28, inter-tooth volume space between high pressure stage male rotor 29 and high pressure stage cylinder 32, after compression pressure raises, high pressure stage relief opening 37 on the second end cap 4, high pressure stage exhaust cavity and high pressure stage vent connection 15 enter oil separator 14, isolated pressurized gas through high pressure stage outlet pipe 18 discharged to condenser.The isolated parts of lubricating oil of oil separator 14 enters in the lubricating oil bath of casing bottom through oil exit pipe 13.Lubricant oil in lubricating oil bath is through the whipping of the second gear 43 of over-rotation, splash in casing, oil leab 30 is flowed into after entering oil collecting hole 2, oil leab 30 departs from the axle center of the main back shaft 10 of low pressure stage male rotor, under the effect of the centrifugal force of the main back shaft 10 of the low pressure stage male rotor of High Rotation Speed, the oil leab of rotatable parts is entered through the main back shaft 10 of low pressure stage male rotor, simultaneously, under the effect of oil separator internal pressure, the isolated parts of lubricating oil of oil separator 14 enters low pressure stage second oil duct through fuel supply line 46, the part surface that lubrication operates mutually.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a horizontal totally-enclosed two-stage screw bolt refrigerant compressor, it is characterized in that, comprise the first end cap (7), 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), the oil leab of rotatable parts, casing and body (6), described casing is enclosed construction, described body (6), first end cap (7), 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 internal, described body (6) and described casing inner wall closely cooperate and fixedly mount, described body (6) two ends respectively with described first end cap (7) and the second end cap (4) releasable connection, the high pressure stage cylinder (32) and low pressure stage cylinder (33) that run through whole body is provided with in the axial direction in described body (6), the described high pressure stage male rotor (29) and 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 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 first end cap (7) is high pressure stage air aspiration cavity, the inner position relative with described low pressure stage cylinder (33) of described first end cap (7) is low pressure stage exhaust cavity, described high pressure stage air aspiration cavity both sides are respectively arranged with the high pressure stage suction port be communicated with described casing internal space and the high pressure stage intakeport (41) be communicated with described high pressure stage cylinder (32), described low pressure stage exhaust cavity both sides are respectively arranged with the low pressure stage exhaust port (24) be communicated with described casing internal space and the low pressure stage relief opening (45) be communicated with described low pressure stage cylinder (33), the inner position relative with described high pressure stage cylinder (32) of described second end cap (4) is high pressure stage exhaust cavity, and the inner position relative with described low pressure stage cylinder (33) of described second end cap (4) is low pressure stage air aspiration cavity, described high pressure stage exhaust cavity both sides are respectively arranged with the high pressure stage relief opening (37) that is communicated with described high pressure stage cylinder (32) and the high pressure stage exhaust port for being connected with high pressure stage vent connection (15), described high pressure stage exhaust port is 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), described oil separator (14) is sealedly connected with oil exit pipe (13) and the high pressure stage outlet pipe (18) through described casing, described high pressure stage outlet pipe (18) is connected with external condensation device, the low pressure stage intakeport (38) that described low pressure stage air aspiration cavity both sides are respectively arranged with the low pressure stage suction port for being connected with low pressure stage air inlet tube (25) and are communicated with described low pressure stage cylinder, described low pressure stage suction port is welded to connect the low pressure stage air inlet tube (25) through described casing, described low pressure stage air inlet tube (25) is connected with external boiler, the described casing side corresponding with described high pressure stage suction port is provided with the liquid-spraying pipe (1) 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 substantially horizontal, the radial side that described high pressure stage intakeport (41) is thrown off with the tooth of high pressure stage female rotor (28) mutually described high pressure stage male rotor (29), the radial side that described high pressure stage relief opening (37) is clogged with the tooth of high pressure stage female rotor (28) mutually described high pressure stage male rotor (29), the radial side that described low pressure stage intakeport (38) is thrown off with the tooth of low pressure stage female rotor (20) mutually described low pressure stage male rotor (31), the radial side that described low pressure stage relief opening (45) is clogged with the tooth of low pressure stage female rotor (20) mutually described low pressure stage male rotor (31).
2. horizontal totally-enclosed 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 (11) of described drive motor drives described low pressure stage male rotor (31).
3. horizontal totally-enclosed 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 first end cap (7) and the second end cap (4) respectively, through described first end cap (7) of the main back shaft of described high pressure stage male rotor (9), non-through described second end cap (4) of the auxiliary back shaft of described high pressure stage male rotor (27); 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 first end cap (7) and the second end cap (4) respectively, non-through described first end cap (7) of the main back shaft of described high pressure stage female rotor (39), non-through described second end cap (4) of the auxiliary back shaft of described high pressure stage female rotor (26); 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 first end cap (7) and the second end cap (4) respectively, through described first end cap (7) of the main back shaft of described low pressure stage male rotor (10), non-through described second end cap (4) of the auxiliary back shaft of described low pressure stage male rotor (3); 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 first end cap (7) and the second end cap (4) respectively, non-through described first end cap (7) of the main back shaft of described low pressure stage female rotor (16), non-through described second end cap (4) of the auxiliary back shaft of described low pressure stage female rotor (22); Rotor (11) compact siro spinning technology of the main back shaft of described low pressure stage male rotor (10) and 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 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 (9).
4. horizontal totally-enclosed two-stage screw bolt refrigerant compressor according to claim 3, it is characterized in that, driving mechanism between the main back shaft of described low pressure stage male rotor (10) and the main back shaft of described high pressure stage male rotor (9) comprises the first gear (42), second gear (43), 3rd gear (44) and gear shaft (8), described first gear (42) is installed on the main back shaft of described low pressure stage male rotor (10), described second gear (43) is installed on described gear shaft (8), described 3rd gear (44) is installed on the main back shaft of described high pressure stage male rotor (9), described compressible drive mechanism drives described low pressure stage male rotor (31) to turn clockwise, by described driving mechanism, described 3rd gear (44) drives described high pressure stage male rotor (29) clockwise direction to rotate, the non-through outside being installed on described first end cap (7) of described gear shaft (8).
5. horizontal totally-enclosed two-stage screw bolt refrigerant compressor according to claim 4, it is characterized in that, the minimum position of described second gear is more lower slightly than the oil surface level of lubricant oil in described casing, and the minimum position of described second gear is goed deep in the lubricant oil of described casing bottom.
6. the horizontal totally-enclosed two-stage screw bolt refrigerant compressor according to any one of claim 3 to 5, is characterized in that, described casing is welded by the first casing (17) and the second casing (5).
7. horizontal totally-enclosed two-stage screw bolt refrigerant compressor according to claim 6, is characterized in that, described body is connected respectively by bolt with between described first end cap (7) and the second end cap (4).
8. horizontal totally-enclosed 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 come from condenser, the position corresponding with described low pressure stage exhaust port is provided with low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, controls by described low pressure stage exhaust gas temperature sensor the Fluid Volume spurting into described casing from described liquid-spraying pipe (1).
9. horizontal totally-enclosed two-stage screw bolt refrigerant compressor according to claim 6, it is characterized in that, the main back shaft of described low pressure stage male rotor (10) is provided with oil collecting hole (2), one end of fuel supply line (46) and the outlet of described oil exit pipe (13) are welded to connect, oil supply hole on the other end of described fuel supply line (46) and described second end cap (4) is welded to connect, 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 lubricant oil low pressure stage first oil duct (36) of the main back shaft of connection described low pressure stage female rotor (16) on described first end cap (7) and described low pressure stage male rotor main back shaft (10) bearing hole, be arranged at lubricant oil high pressure stage first oil duct (35) of the main back shaft of connection described high pressure stage female rotor (39) on described first end cap (7) and described high pressure stage male rotor main back shaft (9) bearing hole, be arranged at lubricant oil low pressure stage second oil duct of the auxiliary back shaft of connection described low pressure stage female rotor (22) on described second end cap (4) and described low pressure stage male rotor auxiliary back shaft (3) bearing hole, be arranged at lubricant oil high pressure stage second oil duct of the auxiliary back shaft of connection described high pressure stage female rotor (26) on described second end cap (4) and described high pressure stage male rotor auxiliary back shaft (27) bearing hole, be communicated with described lubricant oil high pressure stage second oil duct and be communicated with ditch (47) with second of lubricant oil low pressure stage second oil duct, and connection lubricant oil high pressure stage first oil duct (35) is communicated with ditch with first of lubricant oil high pressure stage second oil duct, described first is communicated with 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 lubricant oil low pressure stage first oil duct (36), oil supply hole on described second end cap (4) is communicated with described lubricant oil low pressure stage second oil duct, described oil separator (14) isolated parts of lubricating oil enters in the lubricating oil bath of described casing bottom through oil exit pipe (13), described oil separator (14) isolated parts of lubricating oil enters described lubricant oil low pressure stage second oil duct through described fuel supply line (46).
10. horizontal totally-enclosed two-stage screw bolt refrigerant compressor according to claim 9, is characterized in that, described high pressure stage suction port is welded with high pressure stage air-breathing adapter (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310375942.3A CN103410729B (en) | 2013-08-26 | 2013-08-26 | Horizontal fully-closed two-stage screw refrigeration compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310375942.3A CN103410729B (en) | 2013-08-26 | 2013-08-26 | Horizontal fully-closed two-stage screw refrigeration compressor |
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| CN103410729A CN103410729A (en) | 2013-11-27 |
| CN103410729B true CN103410729B (en) | 2015-07-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102016011394A1 (en) * | 2016-09-21 | 2018-03-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Screw compressor for a commercial vehicle |
| CN112940682B (en) * | 2021-02-04 | 2022-02-01 | 青岛万宝压缩机有限公司 | Compressor suitable for Linde-Hampson type throttling refrigerating machine |
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| CN203453062U (en) * | 2013-08-26 | 2014-02-26 | 天津商业大学 | Totally-closed low-temperature twin-screw compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006035783A1 (en) * | 2006-08-01 | 2008-02-07 | Grasso Gmbh Refrigeration Technology | screw compressors |
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| US3481532A (en) * | 1967-12-20 | 1969-12-02 | Ingersoll Rand Co | Compressor |
| EP0237734A2 (en) * | 1986-03-20 | 1987-09-23 | Hitachi, Ltd. | Screw vacuum pump unit |
| JPH0953583A (en) * | 1995-08-10 | 1997-02-25 | Hokuetsu Kogyo Co Ltd | Oil-cooled screw two-stage compressor |
| JP2000205160A (en) * | 1999-01-14 | 2000-07-25 | Tochigi Fuji Ind Co Ltd | Fluid machine and its processing method |
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| CN203453062U (en) * | 2013-08-26 | 2014-02-26 | 天津商业大学 | Totally-closed low-temperature twin-screw compressor |
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| CN103410729A (en) | 2013-11-27 |
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