CN210832645U - Siphon oil cooling system of screw parallel compressor unit - Google Patents
Siphon oil cooling system of screw parallel compressor unit Download PDFInfo
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- CN210832645U CN210832645U CN201921706069.0U CN201921706069U CN210832645U CN 210832645 U CN210832645 U CN 210832645U CN 201921706069 U CN201921706069 U CN 201921706069U CN 210832645 U CN210832645 U CN 210832645U
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Abstract
The utility model discloses a siphon oil cooling system of a screw parallel compressor unit, wherein the lower end oil outlet of a compressor oil separator is sequentially connected with a first oil way stop valve, an oil way filter and a first oil way stop valve through pipelines; the outlet end of the first oil way stop valve is connected with an oil inlet of the plate-type oil cooler; the plate oil cooler is sequentially connected with a third oil way stop valve and an oil pump through an oil pipe; the siphon tank is sequentially connected with a first fluorine path stop valve, a fluorine path filter and a second fluorine path stop valve through pipelines; an electromagnetic valve is arranged at the outlet end of the second fluorine path stop valve; the outlet end of the electromagnetic valve is connected with a fluorine inlet of the plate-type oil cooler through a pipeline; and a fluorine outlet of the plate-type oil cooler is sequentially connected with a third fluorine path stop valve, a fourth fluorine path stop valve and a siphon tank through pipelines. The utility model discloses can provide a parallelly connected compressor unit siphon oil cooling system of screw rod that oil circuit is simple reliable, cooling flow control is convenient, cold and hot oil mixes evenly and temperature control stability is good.
Description
Technical Field
The utility model relates to a technical field is made in refrigeration plant production, specifically is a parallelly connected compressor unit siphon oil cooling system of screw rod.
Background
In the existing refrigeration equipment system, the flow and oil temperature control of the refrigerating oil of the existing screw parallel compressor unit are two key aspects of the stable operation of the screw compressor, the oil cooling system of the screw parallel compressor unit mostly adopts a siphon oil cooling system because of numerous advantages, but the change situation of the oil cooling load of the unit is large due to seasonal changes and system working conditions, so that some methods are needed to control the oil temperature in a proper range, a bypass pipeline is added at an oil way inlet and an oil way outlet of a plate type oil cooler in the prior art, an electromagnetic valve is installed on the pipeline, the flow of cold oil and hot oil is adjusted through an electromagnetic valve switch, and the ideal oil temperature is obtained after the cold oil and the hot oil are mixed; however, the opening of the electromagnetic valve needs a pressure difference, and the pressure difference, the pressure loss through the electromagnetic valve and the pressure loss of the refrigeration oil through the oil cooler are very small, so that when the oil path bypass electromagnetic valve is opened, the adjustment of the flow of the cold oil and the hot oil cannot be performed well as required, the cold oil and the hot oil are not mixed uniformly in a pipeline, error information is easily fed back to a control system, and the oil temperature control fluctuation is large, even the oil temperature control fluctuation cannot be adjusted.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, for solving above-mentioned technical problem, the utility model provides an oil circuit is simple reliable, cooling flow control is convenient, cold and hot oil misce bene and the good screw rod compressor unit siphon oil cooling system of temperature control stability that connects in parallel.
In order to achieve the above object, the utility model provides a following technical scheme: a siphon oil cooling system of a screw parallel compressor unit comprises an oil way system and a fluorine way system, wherein the oil way system comprises a compressor oil separator, a first oil way stop valve, an oil way filter, a second oil way stop valve, a plate type oil cooler, a third oil way stop valve and an oil pump; the upper part and the lower part of the plate oil cooler are simultaneously provided with an oil inlet, an oil outlet, a fluorine inlet and a fluorine outlet; the outlet end of the second oil way stop valve is connected with an oil inlet of the plate-type oil cooler; an oil outlet of the plate-type oil cooler is sequentially connected with a third oil way stop valve and an oil pump through an oil pipe; the fluorine path system comprises a siphon tank, a first fluorine path stop valve, a fluorine path filter, a second fluorine path stop valve, an electromagnetic valve, a plate type oil cooler, a third fluorine path stop valve and a fourth fluorine path stop valve, wherein the outlet end of the siphon tank is sequentially connected with the first fluorine path stop valve, the fluorine path filter and the second fluorine path stop valve through pipelines; an electromagnetic valve is installed at the outlet end of the second fluorine path stop valve; the outlet end of the electromagnetic valve is connected with a fluorine inlet of the plate-type oil cooler through a pipeline; and a fluorine outlet of the plate-type oil cooler is connected to the inlet end of the siphon tank after sequentially passing through a third fluorine path stop valve and a fourth fluorine path stop valve through pipelines.
As a further improvement, the quantity of the electromagnetic valves is two or more than two, and the electromagnetic valves are installed in a parallel mode on a pipeline between the second fluorine path stop valve and the plate type oil cooler.
As a further improvement, still the erection joint has oil temperature sensor on the oil circuit between third oil circuit stop valve and the oil pump, oil temperature sensor pass through the circuit with the mutual electric connection of PLC controller on the solenoid valve.
As a further improvement of the present invention, the compressor oil separator is any one of a washing type oil separator, a centrifugal type oil separator, a filtering type oil separator, and a packing type oil separator.
The utility model provides a parallelly connected compressor unit siphon oil cooling system of screw rod possesses following beneficial effect: compared with the traditional oil absorption cooling device, the oil absorption cooling device can effectively solve the problem of unstable oil supply temperature caused by inaccurate cold and hot oil flow control and uneven cold and hot oil mixing, simplifies an oil circuit system and reduces the construction cost of the device; according to the technical scheme, the oil path system and the fluorine path system are arranged, and the compressor oil separator, the oil path filter, the plate type oil cooler, the siphon tank, the fluorine path filter and other components are arranged in a matched manner, so that heat exchange can be carried out on compressor lubricating oil circulating through the plate type oil cooler and refrigerant fluorine circulating through the plate type oil cooler after cooling, and the beneficial technical effect of rapid and uniform cooling is achieved; this technical scheme still sets up two or more than two solenoid valves at plate oil cooler's fluorine entrance point to the erection joint has oil temperature sensor on the oil circuit between third oil circuit stop valve and oil pump, just so can be according to the lubricating oil real-time temperature of oil temperature sensor feedback, the on-off state and the on-off time of adjustment every solenoid valve, realize the liquid supply volume to adjusting plate oil cooler from this, and then reach the convenient control compressor lubricating oil fuel feeding temperature, very big improvement the life of compressor job stabilization nature and oil pump.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The reference numbers in the figures are: 1. a compressor oil separator; 2. a first oil path cutoff valve; 3. an oil path filter; 4. a second oil path stop valve; 5. a plate oil cooler; 6. a third waterway stop valve; 7. a first fluorine path stop valve; 8. a siphon tank; 9. a second fluorine path stop valve; 10. an electromagnetic valve; 11. a third oil path stop valve; 12. an oil pump; 13. a fourth fluorine path stop valve; 14. a fluorine path filter; 15. an oil temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1, the utility model provides a technical solution: a siphon oil cooling system of a screw parallel compressor unit comprises an oil path system and a fluorine path system, wherein the oil path system comprises a compressor oil separator 1, a first oil path stop valve 2, an oil path filter 3, a second oil path stop valve 4, a plate oil cooler 5, a third oil path stop valve 11 and an oil pump 12, and an oil outlet at the lower end of the compressor oil separator 1 is sequentially connected with the first oil path stop valve 2, the oil path filter 3 and the second oil path stop valve 4 through pipelines; the upper part and the lower part of the plate oil cooler 5 are simultaneously provided with an oil inlet, an oil outlet, a fluorine inlet and a fluorine outlet; the outlet end of the second oil way stop valve 4 is connected with the oil inlet of the plate-type oil cooler 5; an oil outlet of the plate-type oil cooler 5 is sequentially connected with a third oil way stop valve 11 and an oil pump 12 through an oil pipe; the fluorine path system comprises a siphon tank 8, a first fluorine path stop valve 7, a fluorine path filter 14, a second fluorine path stop valve 9, an electromagnetic valve 10, a plate oil cooler 5, a third fluorine path stop valve 6 and a fourth fluorine path stop valve 13, wherein the outlet end of the siphon tank 8 is sequentially connected with the first fluorine path stop valve 7, the fluorine path filter 14 and the second fluorine path stop valve 9 through pipelines; an electromagnetic valve 10 is arranged at the outlet end of the second fluorine path stop valve 9; the outlet end of the electromagnetic valve 10 is connected with the fluorine inlet of the plate-type oil cooler 5 through a pipeline; a fluorine outlet of the plate-type oil cooler 5 is connected to an inlet end of the siphon tank 8 after sequentially passing through a third fluorine path stop valve 6 and a fourth fluorine path stop valve 13 through pipelines; the number of the electromagnetic valves 10 is two or more, and the electromagnetic valves are arranged on a pipeline between the second fluorine path stop valve 9 and the plate type oil cooler 5 in a parallel connection mode; an oil temperature sensor 15 is also installed and connected on the oil path between the third oil path stop valve 11 and the oil pump 12, and the oil temperature sensor 15 is electrically connected with a PLC (programmable logic controller) on the electromagnetic valve 10 through a circuit; the compressor oil separator 1 is any one of a washing type oil separator, a centrifugal type oil separator, a filter type oil separator, and a packing type oil separator.
This system is after the operation is used, compressor exhaust high temperature high pressure and thoughtlessly have the gas of lubricating oil to carry out oil-gas separation in oil separator 1, the lubricating oil of separating is sent back the compressor, lubricating oil plays the lubrication in the compressor, the cooling, the effect of making an uproar falls, because the internal lubricating oil temperature of compressor discharge gas is higher, the viscosity of lubricating oil reduces, can't provide lubrication and cooling function for the compressor, can cause the compressor operation condition to worsen rapidly, arouse serious fault, so the lubricating oil temperature of separating in the oil separator 1 must drop to suitable temperature and remain stable, just can ensure the steady operation of system. The temperature sensor arranged in the lubricating oil pipeline can sense the temperature of lubricating oil in the oil pipe in real time, meanwhile, a temperature signal is transmitted to the PLC controller in real time, the temperature signal is compared with set parameters of a system, when the temperature exceeds a set value t1, the first electromagnetic valve on the fluorine side is opened, the PLC adjusts the opening time of the electromagnetic valve according to the real-time sensed temperature through a programmed program, if the oil temperature exceeds a set value t2 (t 2 is more than t 1), the second electromagnetic valve on the fluorine side is opened, the electromagnetic valve follows the principle of first opening and then closing, the oil return temperature is automatically adjusted and controlled by adjusting the amount of refrigerant liquid supply, and the influence of environmental change and working condition change is avoided.
The difference between the system and the traditional siphon oil cooling is as follows: traditional siphon oil cooling system, the oil circuit increases bypass pipeline, adjusts the oil temperature through the flow of the oil of adjusting through plate-type oil cooler: and this technical scheme then adopts the mode that control panel oil cooler supplied liquid measure to control the oil temperature, compares traditional oil temperature control mode, and this technical scheme's oil temperature control is more stable, reliable, and system application scope is wider, and very big improvement the compressor job stabilization nature and the life of oil pump.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a parallelly connected compressor unit siphon oil cooling system of screw rod which characterized in that: the oil-way system consists of an oil-way system and a fluorine-way system, wherein the oil-way system comprises a compressor oil separator (1), a first oil-way stop valve (2), an oil-way filter (3), a second oil-way stop valve (4), a plate-type oil cooler (5), a third oil-way stop valve (11) and an oil pump (12), and an oil outlet at the lower end of the compressor oil separator (1) is sequentially connected with the first oil-way stop valve (2), the oil-way filter (3) and the second oil-way stop valve (4) through pipelines; the upper part and the lower part of the plate type oil cooler (5) are simultaneously provided with an oil inlet, an oil outlet, a fluorine inlet and a fluorine outlet; the outlet end of the second oil way stop valve (4) is connected with an oil inlet of the plate-type oil cooler (5); an oil outlet of the plate-type oil cooler (5) is sequentially connected with a third oil way stop valve (11) and an oil pump (12) through an oil pipe; the fluorine path system comprises a siphon tank (8), a first fluorine path stop valve (7), a fluorine path filter (14), a second fluorine path stop valve (9), an electromagnetic valve (10), a plate oil cooler (5), a third fluorine path stop valve (6) and a fourth fluorine path stop valve (13), wherein the outlet end of the siphon tank (8) is sequentially connected with the first fluorine path stop valve (7), the fluorine path filter (14) and the second fluorine path stop valve (9) through pipelines; an electromagnetic valve (10) is installed at the outlet end of the second fluorine path stop valve (9); the outlet end of the electromagnetic valve (10) is connected with a fluorine inlet of the plate-type oil cooler (5) through a pipeline; and a fluorine outlet of the plate-type oil cooler (5) is connected to the inlet end of the siphon tank (8) after sequentially passing through a third fluorine path stop valve (6) and a fourth fluorine path stop valve (13) through pipelines.
2. The siphon oil cooling system of the screw parallel compressor unit according to claim 1, wherein: the number of the electromagnetic valves (10) is two or more, and the electromagnetic valves are arranged on a pipeline between the second fluorine path stop valve (9) and the plate type oil cooler (5) in a parallel connection mode.
3. The siphon oil cooling system of the screw parallel compressor unit according to claim 1, wherein: and an oil temperature sensor (15) is further installed and connected on an oil path between the third oil path stop valve (11) and the oil pump (12), and the oil temperature sensor (15) is electrically connected with the PLC on the electromagnetic valve (10) through a line.
4. The siphon oil cooling system of the screw parallel compressor unit according to claim 1, wherein: the compressor oil separator (1) adopts any one of a washing oil separator, a centrifugal oil separator, a filtering oil separator and a packing oil separator.
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| CN201921706069.0U CN210832645U (en) | 2019-10-12 | 2019-10-12 | Siphon oil cooling system of screw parallel compressor unit |
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| CN201921706069.0U CN210832645U (en) | 2019-10-12 | 2019-10-12 | Siphon oil cooling system of screw parallel compressor unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567205A (en) * | 2019-10-12 | 2019-12-13 | 江苏星星家电科技有限公司 | Siphon oil cooling system of screw parallel compressor unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567205A (en) * | 2019-10-12 | 2019-12-13 | 江苏星星家电科技有限公司 | Siphon oil cooling system of screw parallel compressor unit |
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Address after: 221000 north side of Xuning Road, Suining Economic Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Xingxing Cold Chain Technology Co.,Ltd. Address before: 221200 north side of Xuning Road, Suining Economic Development Zone, Xuzhou City, Jiangsu Province (100m west of Jinghua middle school) Patentee before: JIANGSU XINGXING HOME APPLIANCES TECHNOLOGY Co.,Ltd. |