CN2554390Y - High-pressure cavity compressor parallel oil supply device - Google Patents
High-pressure cavity compressor parallel oil supply device Download PDFInfo
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- CN2554390Y CN2554390Y CN 02206127 CN02206127U CN2554390Y CN 2554390 Y CN2554390 Y CN 2554390Y CN 02206127 CN02206127 CN 02206127 CN 02206127 U CN02206127 U CN 02206127U CN 2554390 Y CN2554390 Y CN 2554390Y
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Abstract
The utility model relates to a high-pressure cavity parallel-compressor oil-supply device used for a cooling system. The utility model comprises a plurality of high-pressure cavity compressors, a check valve, an air / liquid separator and just one oil separator. The oil separator is in parallel connected with corresponding high-pressure oil pools of compressors through a plurality of two-way oil-guiding pipes, and then is in parallel connected with an inlet of each compressor or is connected with the air / liquid separator after pressure-limiting by an oil-return pipe. An absorbed oil volume of the compressor is not less than a drained oil volume. The oil-guiding pipes not only can lead redundant oils of compressors generated in a running process to be released to the oil separator, but also can lead a high-level oil in the oil separator to actively enter the compressors in an idle state. An opening of the oil-guiding pipe at the oil pool bottom can conserve an oil-abundant layer in the oil pool so as to form oil pressure quickly. The device can keep a constant oil-supply for a starting process, an abundant oil trend in the running process and no-lack of oil in the idle state for any compressor. Compared with the prior art, the utility model is simple, reliable and low in cost, and can avoid an oil-lack phenomenon caused by uneven oil-return volumes of the compressor.
Description
Affiliated technical field
The utility model relates to a kind of compressor parallel oil feed device, especially can guarantee compressor not oil starvation, the hyperbaric chamber compressor parallel oil feed device of oil-break not.
Background technique
At present, multiple compressors parallel operation, especially lubricating oil bath belong to many parallel operations of compressor of hyperbaric chamber, exist indivedual compressors because of the problem that oil starvation or oil-break burn out, and need reliable oil supply measure.
The ZL99216836 of State Intellectual Property Office utility model patent specification has been announced a kind of oil sharing automatic controller for multiple refrigeration compressors.
Below be in conjunction with of the explanation of its accompanying drawing to this oil sharing automatic controller for multiple refrigeration compressors.
As shown in Figure 4, this oil sharing automatic controller for multiple refrigeration compressors is made up of oil separator 3, one-way valve 2, flow controller 4, the store oil bag 6 worn for the compressor 5 of high pressure oil and each compressor 5 in many casings.The housing of each compressor 5 is provided with oil outlet and joins with set store oil bag 6 imports, the outlet of each store oil bag 6 is staggered joins with set oil equalizing pipe 1 and oil equalizing pipe 2 10 respectively, the relief opening of each compressor 5 and oil separator 3 join, the upper outlet of oil separator 3 and one-way valve 2 imports are joined, the outlet of each one-way valve 2 with go the outlet pipe 9 of condenser to join, the following outlet of each oil separator 3 and flow controller 4 imports are joined, enter the intakeport of compressor 5 separately after 4 outlets of each flow controller are joined with the sucking pipe that comes from evaporator drier and draw and take over 1, each is taken over 1 and staggeredly joins with oil equalizing pipe 2 10 and oil equalizing pipe 1 respectively.
It below is explanation to the equal oily autocontrol mode of this device.
During compressor 5 operations, the refrigeration agent high compressed steam enters condenser behind oil separator 3, one-way valve 2.The refrigeration oil that is separated in oil separator 3 returns after flow controller 4 step-downs separately in the compressor 5.
Owing to return the oil mass of each compressor 5 can not evenly the phenomenon of certain compressor 5 rich oil or oil starvation appear promptly.
When certain compressor 5 rich oil, when promptly surpassing compressor 5 proper functioning oil levels, refrigeration oil then along set oil outlet on its housing flow into store oil bag 6 and the oil equalizing pipe 1 or oil equalizing pipe 2 10 that are attached thereto in.The refrigeration oil of in oil equalizing pipe 1 or oil equalizing pipe 2 10, storing, its pressure is approximately the exhaust pressure of compressor 5, under the effect of pressure reduction, get back in the sucking pipe of oil starvation compressor 5 through flow controller 11 again, the compressor 5 of oil starvation continuously is recovered to the unnecessary refrigeration oil of rich oil compressor 5, make its oil level go back up to normal work oil level scope, guarantee every compressor 5 proper functioning.In whole equal oily automatic control device, if when part compressor 5 work is only arranged, the oil that retains in the system will be got back in the compressor 5 that is turning round.When the rich oil phenomenon occurring, in the rich oil compressor 5 unnecessary oil will be stored in store oil bag 6 and the oil equalizing pipe 1 or oil equalizing pipe 2 10 that are attached thereto in.
After originally out-of-work compressor 5 starts, petrol starvation can occur in the short time, this moment is because the low-pressure suction of sucking pipe, supplies required refrigeration oil from the store oil bag 6 of rich oil compressor 5 and oil equalizing pipe 1 or oil equalizing pipe 2 10.
But this oil sharing automatic controller for multiple refrigeration compressors can not solve the problem that original out-of-work compressor 5 starts back oil starvation or oil-break separately.
Phenomenon, reason and the consequence thereof of oil starvation or oil-break after below compressor 5 starts separately in this device of explanation.
At first, after compressor 5 started separately in this device, its oil outlet and relief opening were tending towards oil starvation with the discharge of the lubricant oil in the compressor 5.Need thereupon and be cross-linked with it and could from the store oil bag 6 of rich oil compressor and oil equalizing pipe, obtain required refrigeration oil as a supplement for the working pressure of the compressor of rich oil.But compressor 5 starts separately; it is neither in running that this compressor air suction mouth is drawn adapter 1 compressor that is connected; pressure in store oil bag 6 and the oil equalizing pipe has no way of setting up; separately the compressor 5 that starts because of its sucking pipe suction less than refrigeration oil in the store oil bag 6 of the compressor that is in shutdown and the oil equalizing pipe, oil starvation takes place to be continued so that burn out the consequence of compressor.
Oil starvation continued so that the phenomenon that burns out also can take place when refrigeration system is just opened after compressor 5 started separately in this device.For example, when opening, refrigeration system, then have only a compressor to be activated if required refrigerating capacity only reaches or be lower than the suction amount of a compressor.After the independent startup of this compressor, one side pressure in its oil storage bag goes out lubricant oil and does not utilize again, discharges oil mass through outlet pipe again on the other hand and distributes with satisfied original oil level by common each position of all system of satisfying of multiple compressors.Like this, the oil mass of discharging when always the oil mass that sucks of from evaporator drier sucking pipe is less than this compressor operating, the compressor that starts is tending towards oil starvation separately.The required refrigerating capacity of refrigeration system is not if in time increase; other compressors do not start yet; oil starvation promptly takes place and continues so that burn out the consequence of compressor because of its sucking pipe aspirates less than the store oil bag 6 of the compressor that is in shutdown and the refrigeration oil in the oil equalizing pipe in the compressor that starts separately.
Similarly, because the structure characteristic of this device is promptly returned the oil mass of each compressor 5 and can not evenly just can not be avoided any compressor to shut down, in shutting down, keep oil starvation in oil starvation.If start separately in oil starvation, oil starvation can take place equally continue so that burn out the consequence of compressor.
Secondly, because this device lacks the measure of setting up oil pressure rapidly, also the oil-break phenomenon can take place during each compressor start under the low temperature environment.
Compressor is after low temperature environment is shut down, and a large amount of refrigerants accumulate in the oil sump, its and lubricant oil the dissolve each other oil-enriched layer that forms the higher position and oil-poor layer of lower position.The inlet port of known hyperbaric chamber compressor moving element is arranged on the lower position of oil sump, shuts down a period of time back startup again, the oil-poor layer of lower position at first can be sucked.Oil-poor layer comprises too much refrigerant and is sucked into the middle chamber of pressing, during making, refrigerant vaporization evaporation press the pressure in chamber to raise, blocked the feed-in of lubricant oil to the high pressure moving element, the high pressure moving element can't be set up and arrive to oil pressure, the high pressure moving element can not get the lubricated and cooling of oil, and temperature continues to raise so that burn out compressor.
Summary of the invention
In order to overcome the defective that existing oil sharing automatic controller for multiple refrigeration compressors exists indivedual compressor oil starvations or oil-break; the utility model provides a kind of hyperbaric chamber compressor parallel oil feed device; oil-break not when it can make any compressor start is tending towards rich oil during running, oil starvation not during shutdown.
The technical measures that its technical problem that solves the utility model adopts comprise:
One table oil separator only is set, oil separator and each compressor place same level, and bottom-up definite minimum working oil bit line, system stability oil level line and pre-oiling bit line, a pair of is drawn to oil guide pipe in each compressor bottom, each high pressure oil sump is linked side by side through separately oil guide pipe and oil separator bottom, one end opening of oil guide pipe is at the oil-poor layer of oil sump bottom, at first oil-poor layer is leaked into oil separator and oil-enriched layer is retained in the oil sump through oil guide pipe during compressor start, oil level is reduced to and is remained on the minimum working oil bit line, do not cause its pressure to raise owing to there is too much refrigerant to enter the middle chamber of pressing, the high pressure moving element is set up and arrived to oil pressure rapidly, the high pressure moving element constantly obtains the lubricated and cooling of oil, compressor is able to proper functioning, has avoided existing oil balancing device can't set up the oil-break phenomenon that takes place at low temperature environment lower compression machine because of oil pressure;
A return tube is drawn in the oil separator bottom, return tube is taken the photograph the oil pipe inlet through a voltage limiter and and is connected, divide the inconsistent oil pipe end of respectively taking the photograph to link side by side with the sucking pipe of the corresponding nearly intakeport of compressor respectively from taking the photograph oil pipe, respectively take the photograph oil pipe terminal airtight be inserted in the inside of corresponding sucking pipe and be provided with one take the photograph oilhole, during compressor operation, the oil of oil separator bottom is passed to after pressure limiting takes the photograph oilhole, fluid oozes from taking the photograph oilhole, high velocity air in the sucking pipe is dispersed into oil droplet and is vaporificly taken in by compressor, because of compressor is not less than the oil mass that compressor is discharged from relief opening from the oil mass of taking the photograph the oilhole absorption, so be tending towards rich oil during the running of any compressor, avoided existing oil balancing device to return the inhomogeneous and phenomenon of oil starvation of the oil mass of each compressor;
Perhaps, a return tube is drawn in the oil separator bottom, directly be connected through a voltage limiter with the gas/liquid separation shell, during compressor operation, the oil of oil separator bottom is got back to the gas/liquid separation bottom after pressure limiting, the oil-sucking hole inspiration of oil return each compressor suction duct in gas/liquid separation, air-flow is dispersed into oil return and is vaporificly finally sucked by compressor, the oil mass that sucks through oil-sucking hole from gas/liquid separation bottom because of compressor is not less than the oil mass that compressor is discharged from relief opening, and the purpose that is tending towards rich oil during any compressor compressor operation also can reach;
Oil guide pipe the other end opening is concordant with system stability oil level line in oil separator, the oil that compressor in the running leaks into rises the oil level of oil separator and surpasses system stability oil level line, the oil level that raises is because of action of gravity, initiatively import lubricant oil by the compressor of other oil guide pipes in shutting down, make system open any oil level that rises without the oil level that starts compressor and be tending towards near oil separator in back, so, in the operational system any one can oil starvation without the compressor that starts, when this starts subsequently for compressor not oil starvation necessary condition is provided, avoided the phenomenon of oil starvation before the existing oil balancing device compressor start;
Oil guide pipe is all offered oil guiding hole in minimum working oil bit line flush position in compressor and in oil separator, each compressor and oil separator have been marked with lubricant oil and have reached pre-oiling bit line before system opens, after system opens, the fluid of each one of system distributes and tends towards stability, after the distribution fluid of system was stable, the oil level of each compressor and oil separator can drop to system stability oil level line.System shuts down once more, and the pressure in compressor and the oil separator is tending towards static equilibrium, because the connection effect of oil guide pipe and oil guiding hole, the oil level of each compressor and oil separator tends to balance and maintains on the system stability oil level line.Shut down under two kinds of situations before system opens and system operation back; the oil level of all compressors all reaches the above system stability oil level line of minimum working oil bit line and oil starvation not; can not provide necessary condition by oil starvation when this restarts for any shutdown compressor, it is inhomogeneous and have in the oil starvation phenomenon that keeps oil starvation in shutting down, shutting down to have avoided existing oil balancing device to return the oil mass of each compressor.
The beneficial effects of the utility model are, reliably to the compressor oil supply, compressor are turned round under normal lubricated and cool condition, and it is simple in structure, and parts are few, and cost is low.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is first embodiment's tectonic maps of hyperbaric chamber compressor parallel oil feed device.
Fig. 2 takes the photograph the oilhole sectional view.
Fig. 3 is second embodiment's tectonic maps of hyperbaric chamber compressor parallel oil feed device.
1. compressors among the figure, 2. lubricating oil bath, 3. oil guiding hole, 4. two-way oil guide pipe, 5. oil separator, 6. outlet pipe, 7. spill port, 8. return tube, 9. voltage limiter is 10. taken the photograph the oil pipe inlet, and 11. take the photograph the oil pipe end, and 12. take the photograph oilhole, 13. one-way valve, 14. sucking pipes, 15. oil-sucking holes, 16. gas/liquid separations, 17. suction tude, 18. steam outlet pipes, 19. pre-oiling bit lines, 20. system stability oil level line, 21. minimum working oil bit lines, other devices of 22. refrigeration systems.
Fig. 4 is a prior art oil sharing automatic controller for multiple refrigeration compressors tectonic maps.
Embodiment
In first embodiment shown in Figure 1, some two-way oil guide pipes are drawn in the oil separator bottom, for linking with the oil separator bottom through oil guide pipe, the oil sump of realizing each compressor is communicated with, oil guide pipe is arranged on the bottom of the following oil sump of minimum working oil bit line at the opening of compressor one end, and the oil guide pipe the other end is extended down to system stability oil level the line crooked and opening towards wall again from the oil separator bottom to rising.Oil guide pipe at first leaks into oil separator with the oil-poor layer of oil sump bottom and oil-enriched layer is retained in the oil sump during compressor start, and pressure reduction makes oil pressure set up and arrive at the high pressure moving element rapidly, and the high pressure moving element constantly obtains the lubricated and cooling of oil.The oil that leaks into of running compressor raises the oil separator oil level, and oil guide pipe makes the fluid that is higher than system stability oil level line in the oil separator initiatively import in the oil sump of compressor of other shutdown again.
Oil guide pipe is all left oil guiding hole according to minimum working oil bit line in compressor and in oil separator, the pasta of each compressor and oil separator was equilibrated on the system stability oil level line when connection effect of oil guide pipe and oil guiding hole made system static;
Oil separator bottom is drawn a return tube in addition, and adjustable with the one or fixed voltage limiter inlet of return tube links to each other, and the voltage limiter outlet enters the mouth and links to each other with taking the photograph oil pipe, so as after the pressure limiting to taking the photograph the oil pipe fuel feeding.Return tube one end at the minimum working oil bit line in oil separator bottom with under shed, for preferentially being offered, the oil-enriched layer part takes the photograph oil pipe, also opening can be extended upward a little less than system stability oil level line and below the minimum working oil bit line in oil separator bottom spill port is set, the return tube the other end is dispensed to oil respectively to take the photograph the oil pipe end by taking the photograph oil pipe inlet, it is inner and be provided with one and take the photograph oilhole respectively to take the photograph the terminal airtight corresponding compressor suction inlet sucking pipe nearby that is inserted in of oil pipe, Fig. 2 is a sectional view of taking the photograph oilhole, take the photograph the oil pipe end and be inserted in the sectional area that has reduced corresponding site in the sucking pipe in the sucking pipe, the speed of its local air flow is promoted, come from raised speed aerodynamic atomization and send into compressor of the fluid of taking the photograph oilhole, realize fuel feeding compressor.
In second embodiment shown in Figure 3, some oil guide pipes are drawn in the oil separator bottom, for linking with the oil separator bottom through oil guide pipe, the oil sump of realizing each compressor is communicated with, oil guide pipe is arranged on the bottom of the following oil sump of minimum working oil bit line at the opening of compressor one end, and the oil guide pipe the other end is extended down to system stability oil level the line crooked and opening towards wall again from the oil separator bottom to rising.Oil guide pipe at first leaks into oil separator with the oil-poor layer of oil sump bottom and oil-enriched layer is retained in the oil sump during compressor start, and pressure reduction makes oil pressure set up and arrive at the hyperbaric chamber part rapidly, and the high pressure moving element constantly obtains the lubricated and cooling of oil.The oil that leaks into of running compressor raises the oil separator oil level, and oil guide pipe makes the fluid that is higher than system stability oil level line in the oil separator initiatively import in the oil sump of compressor of other shutdown again.
Oil guide pipe is all left oil guiding hole according to minimum working oil bit line in compressor and in oil separator, the pasta of each compressor and oil separator was equilibrated on the system stability oil level line when connection effect of oil guide pipe and oil guiding hole made system static;
The oil separator bottom is drawn a return tube in addition, adjustable with the one or fixed voltage limiter inlet of return tube links to each other, the voltage limiter outlet is communicated with the middle part of gas/liquid separation shell, its link position can be higher than pre-oiling bit line, makes the not static oil level balance of participation oil separator and each compressor of gas/liquid separation.After the system start-up, gas/liquid separation is in low pressure, oil separator is in high pressure and the fluid of its bottom is imported the bottom of gas/liquid separation, gas/liquid separation separates suction tude and makes from the particle that dissolves each other of other devices of refrigeration system and drips in the bottom from gas, the liquid that dissolves each other of bottom contains the lubricant oil of taking back from system, like this, the gas/liquid separation bottom has held the fluid oil from two aspects.Sucking pipe by gas/liquid separation bottom has oil-sucking hole, the fluid oil of gas/liquid separation bottom through the oil-sucking hole of sucking pipe suck and be dispersed into vaporific after, in company with gaseous coolant to compressor oil-supplying.
Claims (7)
1. hyperbaric chamber compressor parallel oil feed device, comprise some on compressor, one-way valve, gas/liquid separation, it is characterized in that: a table oil separator only is set, oil separator bottom links with the high pressure oil sump of corresponding compressor side by side by some two-way oil guide pipes, and oil separator and each compressor place same level, and bottom-up definite minimum working oil bit line, system stability oil level line and oiling bit line in advance.
2. hyperbaric chamber compressor parallel oil feed device according to claim 1, it is characterized in that: the aperture position of oil guide pipe in oil separator can be concordant with minimum working oil bit line, also can be extended down to system stability oil level the line crooked and opening towards wall again to rising with after the concordant place of minimum working oil bit line offers oil guiding hole.
3. hyperbaric chamber compressor parallel oil feed device according to claim 1, it is characterized in that: the aperture position of oil guide pipe in the compressor oil sump can be concordant with minimum working oil bit line, also can with extend the oil sump bottom opening downwards after the concordant place of minimum working oil bit line offers oil guiding hole.
4. according to claim 2,3 described hyperbaric chamber compressor parallel oil feed device, it is characterized in that: oil separator bottom links to each other by adjustable with one an or fixed voltage limiter inlet of return tube, the voltage limiter outlet with take the photograph oil pipe and enter the mouth and link to each other or link to each other with gas/liquid separation.
5. hyperbaric chamber compressor parallel oil feed device according to claim 4, it is characterized in that: the aperture position of return tube in oil separator can be lower than minimum working oil bit line, also can be after being lower than minimum working oil bit line spill port be set, to rising to opening between minimum working oil bit line and the system stability oil level line.
6. hyperbaric chamber compressor parallel oil feed device according to claim 4, it is characterized in that: take the photograph the oil pipe inlet and be communicated with voltage limiter, divide the inconsistent oil pipe end of respectively taking the photograph from taking the photograph oil pipe, can link to each other with sucking pipe near the compressor air suction mouth separately, also can be bent to form the parallel-segment after-opening, or be provided with one in the parallel-segment intermediate portion and take the photograph oilhole and the parallel-segment terminal is sealed at the nearby airtight inner and downstream direction of sucking pipe that is inserted in of compressor air suction mouth separately.
7. hyperbaric chamber compressor parallel oil feed device according to claim 4 is characterized in that: the voltage limiter outlet is connected with gas/liquid separation shell middle part, and the voltage limiter outlet end can be more than system stability oil level line at the aperture position of gas/liquid separation shell.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206127 CN2554390Y (en) | 2002-02-28 | 2002-02-28 | High-pressure cavity compressor parallel oil supply device |
| AU2003211676A AU2003211676A1 (en) | 2002-02-28 | 2003-02-27 | Improvement for multi-coupled heat pump system |
| PCT/CN2003/000153 WO2003085334A1 (en) | 2002-02-28 | 2003-02-27 | Improvement for multi-coupled heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206127 CN2554390Y (en) | 2002-02-28 | 2002-02-28 | High-pressure cavity compressor parallel oil supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554390Y true CN2554390Y (en) | 2003-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02206127 Expired - Fee Related CN2554390Y (en) | 2002-02-28 | 2002-02-28 | High-pressure cavity compressor parallel oil supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2554390Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564883C (en) * | 2007-12-10 | 2009-12-02 | 攀枝花新钢钒股份有限公司 | Fuel injection helical lobe compressor lubricant oil ancillary equipment |
-
2002
- 2002-02-28 CN CN 02206127 patent/CN2554390Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564883C (en) * | 2007-12-10 | 2009-12-02 | 攀枝花新钢钒股份有限公司 | Fuel injection helical lobe compressor lubricant oil ancillary equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |