CN104481875A - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN104481875A CN104481875A CN201410810827.9A CN201410810827A CN104481875A CN 104481875 A CN104481875 A CN 104481875A CN 201410810827 A CN201410810827 A CN 201410810827A CN 104481875 A CN104481875 A CN 104481875A
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- China
- Prior art keywords
- oil
- helical
- oil circuit
- lobe compressor
- shaft bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000003921 oil Substances 0.000 claims description 210
- 239000000314 lubricant Substances 0.000 claims description 32
- 238000003032 molecular docking Methods 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 27
- 238000000034 method Methods 0.000 description 7
- 230000008676 import Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to a screw compressor, which comprises a machine body, a rotor, a slide valve, an exhaust bearing seat and an electromagnetic valve for controlling loading and unloading of the slide valve, wherein an oil way for controlling loading and unloading of the screw compressor in the exhaust bearing seat is connected with an oil way of the electromagnetic valve in the machine body by adopting an internal oil way structure. According to the invention, the internal oil circuit structure is adopted to connect the oil circuit used for controlling the loading and unloading of the screw compressor in the exhaust bearing seat and the oil circuit in the machine body of the electromagnetic valve, so that the problem of inconvenient disassembly easily caused by adopting an external oil pipe is solved, the internal structure of the screw compressor is simplified, and the disassembly efficiency is improved; meanwhile, the problem of oil circuit leakage caused by the existence of an external oil pipe can be avoided, the loading and unloading performance of the screw compressor is improved, and the reliability of the screw compressor is ensured.
Description
Technical field
The present invention relates to Compressor Technology field, particularly relate to a kind of helical-lobe compressor.
Background technique
Refrigeration compressor is a vital part in refrigeration system, and the compressor be widely used at present has piston type, eddy type, centrifugal and screw type etc.
For screw compressor, guiding valve mainly refers to energy adjustment guiding valve, regulates compressor displacement by the effective active length changing compressor drum.The set-up mode of guiding valve mainly contains three kinds: above put, underlying and side.Exhaust shaft bearing needs to be vented end face with body and is connected, and Main Function is the setting for the fixing of compressor air-discharging step bearing and relief opening.When helical-lobe compressor guiding valve is underlying, oil cylinder in corresponding exhaust shaft bearing is also in downside, and according to the structure of compressor and process property easy for installation and consider, generally solenoid valve interface can be arranged at the upside of body, this generates a problem, be connected with solenoid valve oil circuit by oil circuit exhaust shaft bearing being used for control compressor and adding unloading if want, just must be communicated with oil circuit between exhaust shaft bearing and body solenoid valve with external oil pipe, this will cause following drawback:
1. because oil content barrel internal structure limit, this makes external oil pipe complex structure, thus causes dismounting inconvenience, affects working efficiency;
2. external oil pipe joint is easily leaked, thus it is abnormal to cause compressor to add unloading, affects the reliability of compressor.
Summary of the invention
The object of the invention is to propose a kind of helical-lobe compressor, easily there is the problem of leaking in the dismounting inconvenience easily occurred when overcoming employing external oil pipe to be communicated with the oil circuit between exhaust shaft bearing and body solenoid valve and external oil pipe joint.
For achieving the above object, the invention provides a kind of helical-lobe compressor, comprise body, rotor, guiding valve, exhaust shaft bearing and add the solenoid valve of unloading for controlling described guiding valve, the oil circuit adding unloading in wherein said exhaust shaft bearing for controlling described helical-lobe compressor adopts inner oil way structure to be connected with the oil circuit of described solenoid valve in described body.
Further, described guiding valve is underlying relative to described rotor, described solenoid valve is arranged on described body relative to horizontal central line position on the lower, the oil circuit adding unloading in the oil circuit of described solenoid valve in described body and described exhaust shaft bearing for controlling described helical-lobe compressor is all arranged on described body relative to horizontal central line position on the lower, and docks with on the attachment face of described exhaust shaft bearing at described body.
Further, being positioned by locating stud between described body and described exhaust shaft bearing, docking with on the attachment face of described exhaust shaft bearing at described body with the oil circuit adding unloading in described exhaust shaft bearing for controlling described helical-lobe compressor to make the oil circuit of described solenoid valve in described body.
Further, in described exhaust shaft bearing for control described helical-lobe compressor add the oil circuit of unloading and the oil circuit of described solenoid valve in described body include default load proportion be 25% and 100% oil circuit, preset load proportion be 50% oil circuit and default load proportion be the oil circuit of 75%, when the oil circuit adding unloading in described exhaust shaft bearing for controlling described helical-lobe compressor docks with the oil circuit of described solenoid valve in described body, the oil circuit of identical default load proportion docks mutually.
Further, described helical-lobe compressor also comprises suction end, exhaust end and oil content barrel, described oil content barrel is arranged on the end face of described exhaust end, described exhaust shaft bearing is covered, described oil content barrel is used for the gas-liquid separation of described helical-lobe compressor, and the isolated lubricant oil of described oil content barrel can supply the oil circuit adding unloading in described exhaust shaft bearing for controlling described helical-lobe compressor.
Further, described body is provided with working connection, a lubricant oil part for described working connection enters in the bearing bore of described suction end, and a part enters in the bearing bore of described exhaust end.
Further, oil return circuit is provided with in described body and described exhaust shaft bearing, and dock with on the attachment face of described exhaust shaft bearing at described body, oil return circuit on wherein said body is communicated with rotor chamber, and the lubricant oil that described working connection enters in the bearing bore of described exhaust end enters described rotor chamber by described oil return circuit.
Further, described body is provided with working connection shrouding, after external oil circuit is connected with described working connection shrouding, hydraulic oil one tunnel enters described working connection, and another road enters the oil circuit of described solenoid valve in described body.
Further, also orifice union is provided with between described working connection shrouding and described solenoid valve.
Based on technique scheme, the present invention connects by adopting inner oil way structure the oil circuit and the oil circuit of solenoid valve in body that add unloading in exhaust shaft bearing for controlling helical-lobe compressor, overcome the problem of the dismounting inconvenience easily occurred when adopting external oil pipe, simplify the internal structure of helical-lobe compressor, improve removal efficiency; Also can avoid the oil circuit leakage problem caused due to the existence of external oil pipe, what improve helical-lobe compressor adds unloading performance simultaneously, ensures the reliability of helical-lobe compressor.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the plan view of a helical-lobe compressor of the present invention embodiment.
Fig. 2 is the structural representation of a helical-lobe compressor of the present invention embodiment.
Fig. 3 is the sectional view of the working connection of a helical-lobe compressor of the present invention embodiment.
Fig. 4 is the sectional view of the oil return circuit of a helical-lobe compressor of the present invention embodiment.
Fig. 5 is the sectional view that the load oil circuit of a helical-lobe compressor of the present invention embodiment connects.
In figure: 1-air-breathing end cap, 2-body, 3-working connection shrouding, 4-orifice union, 5-oil content barrel, 6-solenoid valve shrouding, 7-solenoid valve, 8-exhaust shaft bearing, 9-rotor, 10-rotor chamber, 11-suction end, 12-exhaust end, 13-working connection, 14-oil return circuit, 15-presets the oil circuit that load proportion is 25% and 100%, 16-presets the oil circuit that load proportion is 50%, and 17-presets the oil circuit that load proportion is 75%.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it will be appreciated that, term " " center ", " transverse direction ", " longitudinal direction ", " front ", " afterwards ", " left side ", " right side ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limiting the scope of the invention can not be interpreted as.
In order to solve the problem that the dismounting inconvenience that easily occurs when helical-lobe compressor in prior art adopts external oil pipe to be communicated with the oil circuit between exhaust shaft bearing and body solenoid valve and external oil pipe joint easily occur to leak, the invention provides a kind of helical-lobe compressor, see Fig. 1, shown in 2 and 3, this helical-lobe compressor comprises body 2, rotor 9, guiding valve, exhaust shaft bearing 8 and add the solenoid valve 7 of unloading for controlling described guiding valve, the oil circuit adding unloading in wherein said exhaust shaft bearing 8 for controlling described helical-lobe compressor adopts inner oil way structure to be connected with the oil circuit of described solenoid valve 7 in described body 2.
The oil circuit adding unloading in exhaust shaft bearing for controlling helical-lobe compressor adopts inner oil way structure to be connected with the oil circuit of solenoid valve in body, the problem of the dismounting inconvenience easily occurred when adopting external oil pipe can be overcome, simplify the internal structure of helical-lobe compressor, improve removal efficiency; Also can avoid the oil circuit leakage problem caused due to the existence of external oil pipe, what improve helical-lobe compressor adds unloading performance simultaneously, ensures the reliability of helical-lobe compressor.Wherein the form of inner oil way structure has a variety of, as long as the oil circuit being used for controlling helical-lobe compressor in exhaust shaft bearing and adding unloading can be connected in helical-lobe compressor inside with the oil circuit of solenoid valve in body, avoids adopting external oil pipe.
In one embodiment, described guiding valve is underlying relative to described rotor 9, described solenoid valve 7 is arranged on described body 2 relative to horizontal central line position on the lower, the oil circuit adding unloading in the oil circuit of described solenoid valve 7 in described body 2 and described exhaust shaft bearing 8 for controlling described helical-lobe compressor is all arranged on described body 2 relative to horizontal central line position on the lower, and docks with on the attachment face of described exhaust shaft bearing 8 at described body 2.
Wherein, the underlying advantage of guiding valve is, when guiding valve is underlying, there is lubricant oil, thus reduce friction between guiding valve and piston chamber surface of contact, reduces frictionally damage, the operation of guiding valve also can be made more smooth and easy.
Above-described embodiment gives a kind of concrete form that the oil circuit that adds unloading for controlling helical-lobe compressor in exhaust shaft bearing adopts inner oil way structure to be connected with the oil circuit of solenoid valve in body, body position is on the lower arranged on by solenoid valve, the horizontal central line position on the lower referred on the lower relative to body mentioned here, can ensure that the oil circuit adding unloading in the oil circuit of solenoid valve in body and exhaust shaft bearing for controlling helical-lobe compressor is all positioned at body relative to horizontal central line position on the lower like this, and the two in the same horizontal line, the two can dock with on the attachment face of exhaust shaft bearing at body like this, after docking, can be communicated with, avoid employing external oil pipe.
Preferably, being positioned by locating stud between described body 2 and described exhaust shaft bearing 8, docking with on the attachment face of described exhaust shaft bearing 8 at described body 2 with the oil circuit adding unloading in described exhaust shaft bearing 8 for controlling described helical-lobe compressor to make the oil circuit of described solenoid valve 7 in described body 2.
Body and exhaust shaft bearing be connected with various ways, as long as ensure that the oil circuit adding unloading in the oil circuit of solenoid valve in body and exhaust shaft bearing for controlling helical-lobe compressor can to connecting.Locating stud such as can be adopted to position, and this mode is not only simple but also reliable.
In one embodiment, in described exhaust shaft bearing 8 for control described helical-lobe compressor add the oil circuit of unloading and the oil circuit of described solenoid valve 7 in described body 2 include default load proportion be 25% and 100% oil circuit 15, preset load proportion be 50% oil circuit 16 and default load proportion be 75% oil circuit 17, when the oil circuit adding unloading in described exhaust shaft bearing 8 for controlling described helical-lobe compressor docks with the oil circuit of described solenoid valve 7 in described body 2, the oil circuit of identical default load proportion docks mutually.
The energy adjustment method of helical-lobe compressor has a variety of, such as suck flow restriction control, turn and stop adjustment, guiding valve adjustment, stick harness valve regulation, variable frequency adjustment etc., helical-lobe compressor provided by the invention also can adopt multiple kinds of energy regulating method, is only adjusted to example with guiding valve here and is described.In an embodiment of helical-lobe compressor of the present invention, utilize electromagnetic valve guiding valve, then by the movement of guiding valve, change effective active length of rotor, reach the object of energy adjustment.
As shown in Figure 5, the oil circuit of solenoid valve in body comprises the oil circuit that default load proportion is 25% and 100%, default load proportion be 50% oil circuit and default load proportion be 75% oil circuit three kinds of oil circuits, the oil circuit adding unloading in exhaust shaft bearing for controlling helical-lobe compressor also comprises the oil circuit that default load proportion is 25% and 100%, default load proportion be 50% oil circuit and default load proportion be 75% oil circuit three kinds of oil circuits, when the oil circuit adding unloading in the oil circuit of solenoid valve in body and exhaust shaft bearing for controlling helical-lobe compressor docks mutually, the oil circuit of identical default load proportion is docked mutually, namely solenoid valve preset in body load proportion be 25% and 100% oil circuit and the default load proportion adding unloading in exhaust shaft bearing for controlling helical-lobe compressor be 25% and 100% oil circuit docks mutually, solenoid valve preset in body load proportion be 50% oil circuit and the default load proportion adding unloading in exhaust shaft bearing for controlling helical-lobe compressor be 50% oil circuit docks mutually, solenoid valve preset in body load proportion be 75% oil circuit and the default load proportion adding unloading in exhaust shaft bearing for controlling helical-lobe compressor be 75% oil circuit docks mutually.
Like this, when 100% solenoid valve open, during all the other closed electromagnetic valves, the lubricant oil from working connection enters 25% and 100% oil circuit, helical-lobe compressor start load until be added to 100% be fully loaded with; When needing unloading, 25% solenoid valve is opened, all the other closed electromagnetic valves, and helical-lobe compressor starts unloading until 25% load; When 50% solenoid valve is opened, during all the other closed electromagnetic valves, helical-lobe compressor starts unloading until 50% load; When 75% solenoid valve is opened, during all the other closed electromagnetic valves, helical-lobe compressor starts unloading until 75% load.
In another embodiment, described helical-lobe compressor also comprises suction end 11, exhaust end 12 and oil content barrel 5, described oil content barrel 5 is arranged on the end face of described exhaust end 12, described exhaust shaft bearing 8 is covered, described oil content barrel 5 is for the gas-liquid separation of described helical-lobe compressor, and the isolated lubricant oil of described oil content barrel 5 can supply the oil circuit adding unloading in described exhaust shaft bearing 8 for controlling described helical-lobe compressor.Wherein suction end outer installment has air-breathing end cap 1.
Helical-lobe compressor in the present invention both can adopt built-in oil content, also can adopt external oil content.When adopting built-in oil content, needing oil content barrel structure to adjust accordingly, oil content barrel need be lengthened to install oily filtrating equipment, and need to increase oil tank to store lubricant oil.No matter be adopt built-in oil content or adopt external oil content, the position relationship of oil content barrel does not change, and oil content barrel is arranged on the exhaust end end face of body, and exhaust shaft bearing is covered.The isolated lubricant oil of oil content barrel can supply external oil circuit, the lubricant oil of external oil circuit resupplies the oil circuit adding unloading in exhaust shaft bearing for controlling helical-lobe compressor, also can be used for the bearing lubrication of suction end and exhaust end and the cooling of screw compression inboard rotor.
In one embodiment, described body 2 is provided with working connection 13, a lubricant oil part for described working connection 13 enters in the bearing bore of described suction end 11, and a part enters in the bearing bore of described exhaust end 12.
In another embodiment, oil return circuit 14 is provided with in described body 2 and described exhaust shaft bearing 8, and dock with on the attachment face of described exhaust shaft bearing 8 at described body 2, oil return circuit 14 on wherein said body 2 is communicated with rotor chamber 10, and the lubricant oil that described working connection 13 enters in the bearing bore of described exhaust end 12 enters described rotor chamber 10 by described oil return circuit 14.
Lubricant oil is by being divided into two-way after the import of working connection, one tunnel directly enters suction end, the bearing of suction end is lubricated or associated components is cooled, another road then enters exhaust end, the bearing of exhaust end is lubricated or associated components is cooled, after lubricant oil lubricates in discharge end bearings chamber, along with the rotation of rotor, lubricant oil enters oil return circuit by the matching gap between parts, when oil circuit simultaneously owing to adding unloading in the oil circuit of solenoid valve in body and exhaust shaft bearing for controlling helical-lobe compressor docks mutually, body and the oil return circuit in exhaust shaft bearing also dock with on the attachment face of exhaust shaft bearing at body, as shown in Figure 4, namely lubricant oil enter rotor chamber by oil return circuit, lubricant oil in rotor chamber can get back to suction end under the drive of rotor.
In one embodiment, described body 2 is provided with working connection shrouding 3, after external oil circuit is connected with described working connection shrouding 3, hydraulic oil one tunnel enters described working connection 13, and another road enters the oil circuit of described solenoid valve 7 in described body 2.
In another embodiment, orifice union 4 is also provided with between described working connection shrouding 3 and described solenoid valve 7.Or solenoid valve 7 can also be connected with solenoid valve shrouding 6, and orifice union 4 is connected on solenoid valve shrouding 6.Orifice union can the flowing velocity of lubricant oil on oil circuit control, regulates the fuel delivery of lubricant oil.
Below for an embodiment of helical-lobe compressor of the present invention, the process of circulation of its lubricant oil is described:
First, the lubricant oil of external oil circuit enters working connection shrouding, and after working connection shrouding, oil circuit is divided into two-way, and a road enters working connection, and orifice union of separately leading up to enters the oil circuit of solenoid valve in body.Enter the lubricant oil of working connection by being divided into two-way again after the import of working connection, one tunnel directly enters suction end, the bearing of suction end is lubricated or associated components is cooled, another road then enters exhaust end, the bearing of exhaust end is lubricated or associated components is cooled, after lubricant oil lubricates in discharge end bearings chamber, along with the rotation of rotor, lubricant oil enters oil return circuit by the matching gap between parts, lubricant oil can enter rotor chamber by oil return circuit, and the lubricant oil in rotor chamber can get back to suction end under the drive of rotor.Enter the lubricant oil of the oil circuit of solenoid valve in body, oil inlet quantity can be regulated under the control of orifice union, the oil circuit of solenoid valve in body is connected by inner oil way structure with the oil circuit adding unloading in exhaust shaft bearing for controlling helical-lobe compressor, by the motion of electromagnetic valve guiding valve, thus control helical-lobe compressor add unloading.In addition, the lubricant oil entered in the bearing bore of suction end and the bearing bore of exhaust end can also enter oil content barrel with gas medium, and the lubricant oil after oil content barrel is separated can supply external oil circuit again, thus forms recycling of lubricant oil.
Helical-lobe compressor of the present invention connects by adopting inner oil way structure the oil circuit and the oil circuit of solenoid valve in body that add unloading in exhaust shaft bearing for controlling helical-lobe compressor, avoid use external oil pipe, overcome the problem of dismounting inconvenience and oil circuit leakage, simplify the internal structure of helical-lobe compressor, improve the reliability of working efficiency and helical-lobe compressor.
Finally should be noted that: above embodiment is only in order to illustrate that technological scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technological scheme scope of request of the present invention protection.
Claims (9)
1. a helical-lobe compressor, it is characterized in that, described helical-lobe compressor comprises body (2), rotor (9), guiding valve, exhaust shaft bearing (8) and adds the solenoid valve (7) of unloading for controlling described guiding valve, and the oil circuit adding unloading in wherein said exhaust shaft bearing (8) for controlling described helical-lobe compressor adopts inner oil way structure to be connected with the oil circuit of described solenoid valve (7) in described body (2).
2. helical-lobe compressor according to claim 1, it is characterized in that, described guiding valve is underlying relative to described rotor (9), described solenoid valve (7) is arranged on described body (2) relative to horizontal central line position on the lower, the oil circuit adding unloading in the oil circuit of described solenoid valve (7) in described body (2) and described exhaust shaft bearing (8) for controlling described helical-lobe compressor is all arranged on described body (2) relative to horizontal central line position on the lower, and dock with on the attachment face of described exhaust shaft bearing (8) at described body (2).
3. helical-lobe compressor according to claim 2, it is characterized in that, being positioned by locating stud between described body (2) and described exhaust shaft bearing (8), docking with on the attachment face of described exhaust shaft bearing (8) at described body (2) with the oil circuit adding unloading in described exhaust shaft bearing (8) for controlling described helical-lobe compressor to make the oil circuit of described solenoid valve (7) in described body (2).
4. helical-lobe compressor according to claim 2, it is characterized in that, the oil circuit of unloading is added and the oil circuit of described solenoid valve (7) in described body (2) includes the oil circuit (15) that default load proportion is 25% and 100% for controlling described helical-lobe compressor in described exhaust shaft bearing (8), default load proportion be 50% oil circuit (16) and default load proportion be 75% oil circuit (17), when the oil circuit adding unloading in described exhaust shaft bearing (8) for controlling described helical-lobe compressor docks with the oil circuit of described solenoid valve (7) in described body (2), the oil circuit of identical default load proportion docks mutually.
5. helical-lobe compressor according to claim 1, it is characterized in that, described helical-lobe compressor also comprises suction end (11), exhaust end (12) and oil content barrel (5), described oil content barrel (5) is arranged on the end face of described exhaust end (12), described exhaust shaft bearing (8) is covered, described oil content barrel (5) is for the gas-liquid separation of described helical-lobe compressor, and described oil content barrel (5) isolated lubricant oil can supply the oil circuit adding unloading in described exhaust shaft bearing (8) for controlling described helical-lobe compressor.
6. helical-lobe compressor according to claim 5, it is characterized in that, described body (2) is provided with working connection (13), a lubricant oil part for described working connection (13) enters in the bearing bore of described suction end (11), and a part enters in the bearing bore of described exhaust end (12).
7. helical-lobe compressor according to claim 6, it is characterized in that, oil return circuit (14) is provided with in described body (2) and described exhaust shaft bearing (8), and dock with on the attachment face of described exhaust shaft bearing (8) at described body (2), oil return circuit (14) on wherein said body (2) is communicated with rotor chamber (10), and the lubricant oil that described working connection (13) enters in the bearing bore of described exhaust end (12) enters described rotor chamber (10) by described oil return circuit (14).
8. helical-lobe compressor according to claim 6, it is characterized in that, described body (2) is provided with working connection shrouding (3), after external oil circuit is connected with described working connection shrouding (3), hydraulic oil one tunnel enters described working connection (13), and another road enters the oil circuit of described solenoid valve (7) in described body (2).
9. helical-lobe compressor according to claim 8, is characterized in that, is also provided with orifice union (4) between described working connection shrouding (3) and described solenoid valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410810827.9A CN104481875A (en) | 2014-12-19 | 2014-12-19 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410810827.9A CN104481875A (en) | 2014-12-19 | 2014-12-19 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104481875A true CN104481875A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410810827.9A Pending CN104481875A (en) | 2014-12-19 | 2014-12-19 | Screw compressor |
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| CN (1) | CN104481875A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386356A (en) * | 2018-04-18 | 2018-08-10 | 北京燕都碧城科技有限公司 | A kind of mobile single-screw compressor |
| CN108934174A (en) * | 2017-03-24 | 2018-12-04 | 日立江森自控空调有限公司 | Screw fluid machine |
| CN110486254A (en) * | 2019-09-18 | 2019-11-22 | 珠海格力电器股份有限公司 | With the oil circuit circuit board and compressor for simplifying oil circuit effect |
| CN112055784A (en) * | 2018-04-26 | 2020-12-08 | Srm意大利有限公司 | Positive displacement compressor with automatic compression ratio adjustment system |
| CN110486254B (en) * | 2019-09-18 | 2024-10-29 | 珠海格力电器股份有限公司 | Oil circuit integrated plate with oil circuit simplifying effect and compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089271A (en) * | 1996-09-20 | 1998-04-07 | Hitachi Ltd | Screw compressor |
| JPH1182354A (en) * | 1997-09-11 | 1999-03-26 | Hitachi Ltd | Capacity control device for screw compressor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934174A (en) * | 2017-03-24 | 2018-12-04 | 日立江森自控空调有限公司 | Screw fluid machine |
| CN108386356A (en) * | 2018-04-18 | 2018-08-10 | 北京燕都碧城科技有限公司 | A kind of mobile single-screw compressor |
| CN108386356B (en) * | 2018-04-18 | 2024-05-28 | 北京燕都碧城科技有限公司 | Movable single-screw compressor |
| CN112055784A (en) * | 2018-04-26 | 2020-12-08 | Srm意大利有限公司 | Positive displacement compressor with automatic compression ratio adjustment system |
| CN110486254A (en) * | 2019-09-18 | 2019-11-22 | 珠海格力电器股份有限公司 | With the oil circuit circuit board and compressor for simplifying oil circuit effect |
| CN110486254B (en) * | 2019-09-18 | 2024-10-29 | 珠海格力电器股份有限公司 | Oil circuit integrated plate with oil circuit simplifying effect and compressor |
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Application publication date: 20150401 |