CN103410729A - Horizontal fully-closed two-stage screw refrigeration compressor - Google Patents
Horizontal fully-closed two-stage screw refrigeration compressor Download PDFInfo
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- CN103410729A CN103410729A CN2013103759423A CN201310375942A CN103410729A CN 103410729 A CN103410729 A CN 103410729A CN 2013103759423 A CN2013103759423 A CN 2013103759423A CN 201310375942 A CN201310375942 A CN 201310375942A CN 103410729 A CN103410729 A CN 103410729A
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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
In the production of the industrial products such as oil, chemical industry, light industry, medicine, the low temperature test aspect scientific research, need low temperature environment in a lot of situations such as the low temperature process of food, aquatic products, storage.Due to the advantage that Spiral Lobe Refrigeration Compressor has, its using scope constantly increases, and is subject to user's favor.
The two-stage screw bolt refrigerant compressor that existing cryogenic freezing cold storage refrigeration system is used, be mostly opening type, and the high and low pressure stage compressor is the single stage compressor combo, or adopt the single machine two-stage formula, and refrigerating capacity is large, boundary dimension is large.And, for the small-sized cryogenic refrigerating system of the low temperature test of scientific research aspect, 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.
Summary of the invention
The objective of the invention is the technological deficiency existed for prior art, provide a kind of compact structure, boundary dimension is little, little horizontal totally-enclosed two-stage screw bolt refrigerant compressor takes up space.
For realizing that the technological scheme that purpose of the present invention adopts is:
A kind of horizontal totally-enclosed two-stage screw bolt refrigerant compressor, the oil leab, casing and the body that 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, 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 high pressure stage cylinder and the low pressure stage cylinder that runs 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; Described the first inner position relative with described high pressure stage cylinder of end cap 7 is the high pressure stage air aspiration cavity, the inner position relative with described low pressure stage cylinder of described the first end cap is the 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 inner 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 inner space and the low pressure stage relief opening be communicated with described low pressure stage cylinder; The inner position relative with described high pressure stage cylinder of described the second end cap is the high pressure stage exhaust cavity, and the inner position relative with described low pressure stage cylinder of described the second end cap is the 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 high pressure stage exhaust port for being connected with described 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 oil exit pipe and the high pressure stage outlet pipe that passes 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 the low pressure stage air inlet tube and the low pressure stage intakeport be communicated with described low pressure stage cylinder; On described low pressure stage suction port, be welded to connect the low pressure stage air inlet tube that passes described casing, described low pressure stage air inlet tube is connected with described external boiler; Described casing one side corresponding with described high pressure stage suction port is equipped with the liquid-spraying pipe that passes described casing; Described compressible drive mechanism's described low pressure stage male rotor of driving and described high pressure stage male rotor 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 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.
High pressure stage male rotor master's back shaft 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, described high pressure stage male rotor master back shaft connects described the first end cap, non-through described the second end cap of the auxiliary back shaft of described high pressure stage; High pressure stage female rotor master's back shaft 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 described high pressure stage female rotor master back shaft, non-through described the second end cap of the auxiliary back shaft of described high pressure stage female rotor; Low pressure stage male rotor master's back shaft 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, described low pressure stage male rotor master back shaft 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; Low pressure stage female rotor master's back shaft 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 described low pressure stage female rotor master back shaft, non-through described the second end cap of the auxiliary back shaft of described low pressure stage female rotor; Described low pressure stage male rotor master back shaft closely is connected with the rotor of described drive motor, described low pressure stage male rotor master back shaft is connected with described high pressure stage male rotor master back shaft by driving mechanism, the rotor of described drive motor drives described low pressure stage male rotor master back shaft, and described low pressure stage male rotor master back shaft drives described high pressure stage male rotor master back shaft.
Driving mechanism between the main back shaft of described low pressure stage male rotor master's back shaft and 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, the described low pressure stage male rotor of described compressible drive mechanism's drive turns clockwise, by described driving mechanism, the rotation of the described high pressure stage male rotor of described the 3rd gear driven clockwise direction, the non-through outside that is installed on described the first end cap of described gear shaft.
The minimum position of described the second gear is more lower slightly than the pasta position of lubricant oil in described casing, and the minimum position of described the 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.
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 come from condenser, the position corresponding with described low pressure stage exhaust port is equipped with the low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, by described low pressure stage exhaust gas temperature sensor, controls the Fluid Volume of spurting into described casing from described liquid-spraying pipe 1.
On described low pressure stage male rotor master back shaft, be 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 the second end cap is welded to connect, the oil leab of described rotatable parts comprises the oil leab of disalignment on described low pressure stage male rotor master back shaft, be arranged at the described low pressure stage female rotor of connection master's back shaft that described first end covers and lubricant oil low pressure stage first oil duct of described low pressure stage male rotor master back shaft bearing hole, be arranged at the described high pressure stage female rotor of connection master's back shaft that described first end covers and lubricant oil high pressure stage first oil duct of described high pressure stage male rotor master back shaft bearing hole, 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 second of described lubricant oil high pressure stage the second oil duct and lubricant oil low pressure stage the second oil duct and be communicated with ditch, and the first connection ditch that connects lubricant oil high pressure stage the first oil duct and lubricant oil high pressure stage the second oil duct, described first is communicated with ditch runs through main back shaft and the auxiliary back shaft of the high pressure stage female rotor place be opened near described high pressure stage female rotor, described oil leab is communicated with described lubricant oil low pressure stage the first oil duct, oil supply hole on described the second end cap is communicated with described low pressure stage the 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 the second oil duct through described fuel supply line.
On described high pressure stage suction port, be welded with the air-breathing adapter of high pressure stage.
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 further reduces low pressure exhaust, compact structure, take up room little, boundary dimension is little, and refrigerating capacity is little, meets the use needs of the low temperature test of scientific research aspect with small-sized cryogenic refrigerating system.
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 of spurting in casing is controlled automatically by the low pressure stage exhaust gas temperature sensor, and it is convenient to control, and uses flexibly.
The 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 the A-A sectional drawing;
Figure 3 shows that the B-B sectional drawing;
Figure 4 shows that the C-C sectional drawing;
Figure 5 shows that the D-D sectional drawing;
Figure 6 shows that the 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. high pressure stage male rotor master back shaft, 10. low pressure stage male rotor master back shaft, 11. rotor, 12. motor stator, 13. oil exit pipe, 14. oil separator, 15. high pressure stage vent connection, 16. low pressure stage female rotor master back shaft, 17. the first casing, 18. high pressure stage outlet pipe, 19. the first clamping bolt, 20. low pressure stage female rotor, 21. the second clamping bolt, 22. the auxiliary back shaft of low pressure stage female rotor, 23. high pressure stage air inlet tube, 24. low pressure stage exhaust port, 25. low pressure stage air inlet tube, 26. the auxiliary back shaft of high pressure stage female rotor, 27. the auxiliary back shaft of high pressure stage male rotor, 28. high pressure stage female rotor, 29. high pressure stage male rotor, 30. oil leab, 31. low pressure stage male rotor, 32. high pressure stage cylinder, 33. low pressure stage cylinder, 34. body bolt hole, 35. high pressure stage oil duct, 36. low pressure stage oil duct, 37. high pressure stage relief opening, 38. low pressure stage intakeport, 39. high pressure stage female rotor master back shaft, 40. first end bonnet bolt hole, 41. high pressure stage intakeport, 42. the first gear, 43. the second gear, 44. the 3rd gear, 45. low pressure stage relief opening, 46. fuel supply line.
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, 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 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 the first end cap 7 and the second end cap 4 are cast inblock.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; Interior high pressure stage cylinder 32 and the low pressure stage cylinder 33 that runs through whole body that be 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 the high pressure stage air aspiration cavity, described the first inner position relative with described low pressure stage cylinder 33 of end cap 7 is the 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 inner 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 inner space and the low pressure stage relief opening 45 be communicated with described low pressure stage cylinder 33; Described the second inner position relative with described high pressure stage cylinder 32 of end cap 4 is the high pressure stage exhaust cavity, and described the second inner position relative with described low pressure stage cylinder 33 of end cap 4 is the 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 high pressure stage exhaust port for being connected with high pressure stage vent connection 15, on described high pressure stage exhaust port, be 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, on described oil separator 14, be sealedly connected with oil exit pipe 13 and the high pressure stage outlet pipe 18 that passes described casing, described high pressure stage outlet pipe 18 is connected with condenser; Described low pressure stage air aspiration cavity both sides are respectively arranged with for the low pressure stage suction port be connected with low pressure stage air inlet tube 25 and the low pressure stage intakeport 38 be communicated with described low pressure stage cylinder; On described low pressure stage suction port, be welded to connect the low pressure stage air inlet tube 25 that passes described casing, described low pressure stage air inlet tube 25 is connected with described external boiler.Described casing one side corresponding with described high pressure stage suction port is equipped with the liquid-spraying pipe 1 that passes described casing; Described compressible drive mechanism's described low pressure stage male rotor 31 of driving and described high pressure stage male rotor 29 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 radially side that described high pressure stage intakeport 41 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 37 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 38 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 45 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 high pressure stage male rotor master back shaft 9 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, described high pressure stage male rotor master supports 9 axles and connects 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; The high pressure stage female rotor master back shaft 39 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 high pressure stage female rotor master back shaft 39, non-through described the second end cap 4 of the auxiliary back shaft 26 of described high pressure stage female rotor.The low pressure stage male rotor master back shaft 10 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, described low pressure stage male rotor master back shaft 10 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 low pressure stage female rotor master back shaft 16 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 described low pressure stage female rotor master back shaft 16, non-through described the second end cap 4 of the auxiliary back shaft 22 of described low pressure stage female rotor; Described low pressure stage male rotor master back shaft 10 closely is connected with the rotor 11 of described drive motor, described low pressure stage male rotor master back shaft 10 is connected with described high pressure stage male rotor master back shaft 9 by driving mechanism, the rotor of described drive motor drives described low pressure stage male rotor master back shaft, and described low pressure stage male rotor master back shaft drives described high pressure stage male rotor master back shaft 9.
Driving mechanism between the main back shaft 9 of described low pressure stage male rotor master back shaft 10 and 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 9 of described low pressure stage male rotor master back shaft 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, the described low pressure stage male rotor 31 of described compressible drive mechanism's drive turns 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.
For the ease of realizing the lubricated of rotatable parts, the minimum position of described the second gear is more lower slightly than the pasta position of lubricant oil in described casing, and the minimum position of described the second gear is goed deep in the lubricant oil of described casing bottom.
In the present embodiment, be bolted respectively between described body 6 and described the first end cap 7 and the second end cap 4.On the first end cap 7, be provided with a plurality of first end bonnet bolts hole 40, in body 6 side relative with the first end cap, be provided with the bolt hole corresponding with first end bonnet bolt hole 40, between the first end cap 7 and body 6, be connected by the first clamping bolt 19, a side relative with the second end cap at body 6 is provided with a plurality of body bolts hole 34, on the second end cap 4, be provided with the bolt hole corresponding with a plurality of 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 come from condenser, the position corresponding with described low pressure stage exhaust port is equipped with the low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, by described low pressure stage exhaust gas temperature sensor, controls the Fluid Volume of spurting into described casing from described liquid-spraying pipe 1.
On described low pressure stage male rotor master back shaft 10, be 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 the second end cap 4 is welded to connect, the oil leab of described rotatable parts comprises the oil leab 30 of disalignment on described low pressure stage male rotor master back shaft 10, be arranged at the described low pressure stage female rotor of connection master back shaft 16 on described the first end cap 7 and lubricant oil low pressure stage first oil duct 36 of described low pressure stage male rotor master back shaft 10 bearing holes, be arranged at the described high pressure stage female rotor of connection master back shaft 39 on described the first end cap 7 and lubricant oil high pressure stage first oil duct 35 of described high pressure stage male rotor master back shaft 9 bearing holes, 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 second of described lubricant oil high pressure stage the second oil duct and lubricant oil low pressure stage the second oil duct and be communicated with ditch 47, and the first connection ditch that connects lubricant oil high pressure stage the first oil duct 35 and lubricant oil high pressure stage the second oil duct, described first is communicated with ditch runs through main back shaft and the auxiliary back shaft of the high pressure stage female rotor place be opened near described high pressure stage female rotor, described oil leab 30 is communicated with described lubricant oil low pressure stage the first oil duct 36, oil supply hole on described the second end cap 4 is communicated with described low pressure stage the second oil duct, the isolated parts of lubricating oil of described oil separator 14 enters in the lubricating oil bath of described casing bottom through oil exit pipe 13, the isolated parts of lubricating oil of described oil separator 14 enters described low pressure stage the second oil duct through described fuel supply line 46.
On described high pressure stage suction port, be welded with the air-breathing adapter 23 of high pressure stage.
During assembling, first liquid-spraying pipe 1 is inserted to the hole of the relevant position of the first casing 17, and be welded to connect, by the rotor of drive motor 11, stator 12 is put into the first casing 17 location and is fixed, 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, 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 26 of high pressure stage female rotor and the auxiliary back shaft 27 of high pressure stage male rotor coordinate with corresponding bearing hole respectively, and fix by the bolt hole that the second clamping bolt 21 passes on the second end cap, the first end cap 7 is aimed at body 6, the middle sealing gasket of placing, make low pressure stage male rotor master back shaft 10 and high pressure stage male rotor master back shaft 9 pass the corresponding bearing hole of the first end cap 7, low pressure stage female rotor master's back shaft 16 and high pressure stage female rotor master back shaft 39 coordinate with bearing hole simultaneously, by the first clamping bolt 19, pass first end bonnet bolt hole 40 fixing, gear shaft 8 is coordinated with the corresponding bearing hole of the first end cap 7, the first gear 42 is coordinated to installation with low pressure stage male rotor master back shaft 10, and the second gear 43 coordinates installation with gear shaft 8, and the 3rd gear 44 coordinates installation with high pressure stage male rotor master back shaft 9, by the high pressure stage suction port of the first end cap 7 and the air-breathing adapter of high pressure stage 23 welding, low pressure stage male rotor master back shaft 10 levels that above-mentioned mounted integral body is stretched out are inserted the rotor 11 of drive motor, the corresponding aperture of oil separator 14 has been welded to 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 and oil exit pipe 13 is welded, the oil supply hole welding of the other end and the second end cap 4, low pressure stage air inlet tube 25 is welded on to the position of low pressure stage air inlet tube 25 corresponding apertures on the second end cap 4, high pressure stage vent connection 15 is welded on to 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 to the second casing 5 and weld with the second casing 5, in casing, be filled with the lubricant oil calculated, the second casing 5 is aimed at and is welded to connect with the first casing 17, 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 that process low pressure stage air inlet tube 25 enters on the second end cap 4, through the low pressure stage intakeport, enter the between cog volume space by 33, the first end cap 7, the second end cap 4, low pressure stage female rotor 20, low pressure stage male rotor 31 and low pressure stage cylinder, after compression pressure raises, enter in casing through 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.The fraction highly pressurised liquid attracted from condenser enters in casing by liquid-spraying pipe 1 through reducing pressure by regulating flow, spurt into the liquid heat absorption evaporation in the fluid in casing, with the low pressure stage exhaust, mix, through high pressure stage air inlet tube 23, high pressure stage air aspiration cavity on the first end cap 7, high pressure stage intakeport 41 enters by the first end cap 7, the second end cap 4, high pressure stage female rotor 28, the between cog volume space that high pressure stage male rotor 29 and high pressure stage cylinder are 32, after compression pressure raises, through the 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 process high pressure stage outlet pipe 18 is 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, in casing, splash, enter the rear inflow oil leab 30 of oil collecting hole 2, oil leab 30 departs from the axle center of low pressure stage male rotor master back shaft 10, under the effect of the centrifugal force of the low pressure stage male rotor master back shaft 10 of High Rotation Speed, through low pressure stage male rotor master back shaft 10, enter the oil leab of rotatable parts, simultaneously, under the effect of oil separator internal pressure, the isolated parts of lubricating oil of oil separator 14 enters low pressure stage the second oil duct through fuel supply line 46, the lubricated part surface of running 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. horizontal totally-enclosed two-stage screw bolt refrigerant compressor, it is characterized in that, comprise 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), the oil leab of rotatable parts, casing and body (6), 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 high pressure stage cylinder (32) and the low pressure stage cylinder (33) that runs 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 the high pressure stage air aspiration cavity, the inner position relative with described low pressure stage cylinder (33) of described the first end cap (7) is the 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 inner 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 inner 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 the second end cap (4) is the high pressure stage exhaust cavity, and the inner position relative with described low pressure stage cylinder (33) of described the second end cap (4) is the 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 high pressure stage exhaust port for being connected with described high pressure stage vent connection (15), on described high pressure stage exhaust port, 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 oil exit pipe (13) and pass the high pressure stage outlet pipe (18) of described casing, described high pressure stage outlet pipe (18) 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 (25) and the low pressure stage intakeport (38) be communicated with described low pressure stage cylinder, on described low pressure stage suction port, be welded to connect the low pressure stage air inlet tube (25) that passes described casing, described low pressure stage air inlet tube (25) is connected with described external boiler, described casing one side corresponding with described high pressure stage suction port is equipped with the liquid-spraying pipe (1) that passes described casing, described compressible drive mechanism's driving described low pressure stage male rotor (31) and described high pressure stage male rotor (29) 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 radially side that described high pressure stage intakeport (41) 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 (37) 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 (38) 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 (45) is clogged mutually at described low pressure stage male rotor (31) and the tooth of low pressure stage female rotor (20).
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, the stator of described drive motor (12) and rotor (11) are installed in described casing, and the rotor of described drive motor (11) 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 high pressure stage male rotor master back shaft (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, described high pressure stage male rotor master supports (9) axle and connects described the first end cap (7), non-through described the second end cap of the auxiliary back shaft of described high pressure stage (27) (4); The high pressure stage female rotor master back shaft (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 described high pressure stage female rotor master back shaft (39) (7), non-through described the second end cap of the auxiliary back shaft of described high pressure stage female rotor (26) (4); The low pressure stage male rotor master back shaft (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, described low pressure stage male rotor master back shaft (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 low pressure stage female rotor master back shaft (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 described low pressure stage female rotor master back shaft (16) (7), non-through described the second end cap of the auxiliary back shaft of described low pressure stage female rotor (22) (4); Described low pressure stage male rotor master back shaft (10) closely is connected with the rotor (11) of described drive motor, described low pressure stage male rotor master back shaft (10) is connected with described high pressure stage male rotor master back shaft (9) by driving mechanism, the rotor of described drive motor drives described low pressure stage male rotor master back shaft, and described low pressure stage male rotor master back shaft drives described high pressure stage male rotor master back shaft (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 (9) of described low pressure stage male rotor master back shaft (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's described low pressure stage male rotor of drive (31) turns 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. horizontal totally-enclosed two-stage screw bolt refrigerant compressor according to claim 4, it is characterized in that, the minimum position of described the second gear is more lower slightly than the pasta position of lubricant oil in described casing, and the minimum position of described the second gear is goed deep in the lubricant oil of described casing bottom.
6. according to the described horizontal totally-enclosed two-stage screw bolt refrigerant compressor of any one in claim 1 to 5, it 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, is bolted respectively between described body and described the 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 equipped with the low pressure stage exhaust gas temperature sensor, described low pressure stage exhaust gas temperature sensor is connected with refrigerant system controller, by described low pressure stage exhaust gas temperature sensor, controls the Fluid Volume of 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, on described low pressure stage male rotor master back shaft (10), be provided with oil collecting hole (2), the outlet of one end of fuel supply line (46) and described oil exit pipe (13) is welded to connect, oil supply hole on the other end of described fuel supply line (46) and described the 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 described low pressure stage male rotor master back shaft (10), be arranged at the described low pressure stage female rotor of connection master's back shaft (16) on described the first end cap (7) and lubricant oil low pressure stage first oil duct (36) of described low pressure stage male rotor master back shaft (10) bearing hole, be arranged at the described high pressure stage female rotor of connection master's back shaft (39) on described the first end cap (7) and lubricant oil high pressure stage first oil duct (35) of described high pressure stage male rotor master back shaft (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 second of described lubricant oil high pressure stage the second oil duct and lubricant oil low pressure stage the second oil duct and be communicated with ditch (47), and the first connection ditch that connects lubricant oil high pressure stage the first oil duct (35) and lubricant oil high pressure stage the second oil duct, described first is communicated with ditch runs through main back shaft and the auxiliary back shaft of the high pressure stage female rotor place be opened near described high pressure stage female rotor, described oil leab (30) is communicated with described lubricant oil low pressure stage the first oil duct (36), oil supply hole on described the second end cap (4) is communicated with described low pressure stage the second oil duct, the isolated parts of lubricating oil of described oil separator (14) enters in the lubricating oil bath of described casing bottom through oil exit pipe (13), the isolated parts of lubricating oil of described oil separator (14) enters described low pressure stage the 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, on described high pressure stage suction port, is welded with the air-breathing adapter of high pressure stage (23).
Priority Applications (1)
| 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 true CN103410729A (en) | 2013-11-27 |
| CN103410729B CN103410729B (en) | 2015-07-01 |
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| CN109906317A (en) * | 2016-09-21 | 2019-06-18 | 克诺尔商用车制动系统有限公司 | Screw compressor for commercial vehicle |
| CN112940682A (en) * | 2021-02-04 | 2021-06-11 | 青岛万宝压缩机有限公司 | Refrigerant composition, mixed working medium and compressor |
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|---|---|
| CN103410729B (en) | 2015-07-01 |
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