CN218565802U - Lubricating oil cooling system and parallel refrigeration compressor set - Google Patents
Lubricating oil cooling system and parallel refrigeration compressor set Download PDFInfo
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- CN218565802U CN218565802U CN202222868589.XU CN202222868589U CN218565802U CN 218565802 U CN218565802 U CN 218565802U CN 202222868589 U CN202222868589 U CN 202222868589U CN 218565802 U CN218565802 U CN 218565802U
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Abstract
The utility model provides a lubricating oil cooling system and parallelly connected refrigeration compressor unit, lubricating oil cooling system mainly by the liquid storage pot, the oil cleaner, the oil pump valve, vapour and liquid separator, plate heat exchanger, the solenoid valve, constitute such as fuel feeding collector and fuel feed pump, a plurality of compressors are fixed in the top of frame, the base of frame is fixed in through the triangular seat of its bottom to the discharge manifold of breathing in, the induction port of a plurality of compressors is respectively through breathing in the filter, the sixth valve is connected with the discharge manifold of breathing in, the discharge manifold is fixed in the inner chamber of frame and is in the lower part of a plurality of compressors, the gas vent of a plurality of compressors is connected with the discharge manifold through exhaust branch pipe respectively, oil separator and plate heat exchanger set up in one side of frame base and through the bolt fastening on the base of frame, the vertical top of installing in the frame of liquid storage pot. The unit utilizes low-temperature circulating working medium in the external liquid storage device to cool and cool lubricating oil, and the system is simple and convenient to operate.
Description
Technical Field
The utility model relates to a parallelly connected compressor unit technical field, concretely relates to lubricating oil cooling system and parallelly connected compressor unit.
Background
The parallel type refrigeration compressor set is a refrigeration compressor set which is formed by installing two or more compressors in parallel on the same frame. Compared with a single-compressor refrigerating unit, the parallel-connection type refrigerating compressor can flexibly and accurately design the parallel-connection type refrigerating unit which is suitable for special requirements of users by selecting the same or different number of compressors and combining the compressors which are good, and further the phenomenon that refrigerating capacity of the unit is excessive or insufficient is avoided. Therefore, the parallel refrigeration compressor set is widely applied to large-scale cold storages to meet the cold using requirements of different cold storages. The prior parallel refrigeration compressor set is provided with a common air suction and exhaust collecting pipe, so that only one oil separator, a gas-liquid separator, a liquid reservoir and an oil filter are needed in the parallel refrigeration compressor set, and the common components simultaneously serve the parallel refrigeration compressor set to respectively complete corresponding functions and actions. For example, the high-temperature and high-pressure oil-gas mixed medium discharged from the exhaust port of the parallel refrigeration compressor unit enters the oil separator through the exhaust manifold, and then flows back to the inside of the parallel refrigeration compressor unit through the oil supply device to form circulation. If after the oil separator, when the temperature of the lubricating oil entering the parallel refrigeration compressor set by the oil supply device is higher, the exhaust temperature of the parallel refrigeration compressor set is easily overhigh, and the refrigeration effect of the whole refrigeration house system is seriously influenced.
In view of the oil return subassembly of current parallel refrigeration compressor unit has the too high phenomenon of oil temperature, and the interior cycle fluid of the reservoir of parallelly connected refrigeration compressor unit is in the low temperature state, on the basis that does not additionally increase cooling arrangement, how to utilize the cold volume of parallelly connected refrigeration compressor unit self to cool off and cool down its lubricating oil and handle, is the technical problem that this technical field needs to be solved urgently, needs a lubricating oil cooling system and has this cooling system's parallelly connected refrigeration compressor unit urgently.
SUMMERY OF THE UTILITY MODEL
The utility model is directed at above-mentioned technical defect, in order to solve the too high technological problem of lubricating oil temperature among the current parallel refrigeration compressor unit, provided a lubricating oil cooling system and parallelly connected refrigeration compressor unit.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a lubricating oil cooling system comprises a liquid storage tank, an oil separator, an oil filter, an oil pump valve, a gas-liquid separator, a plate heat exchanger, an electromagnetic valve, an oil supply header pipe, an oil supply pump, a liquid viewing mirror, an oil supply branch pipe and a valve assembly, wherein the exhaust ports of a plurality of compressors are respectively connected to an oil content inlet of the oil separator through an exhaust header, an oil content outlet of the oil separator is externally connected to a condenser, an oil pump valve is arranged at the position, close to the bottom of the oil separator, of the side wall of the oil separator, an oil filter is fixed at the outlet of the oil pump valve, the outlet of the oil filter is connected with a fifth valve and is connected with a lubricating oil inlet of a plate heat exchanger, a lubricating oil outlet of the plate heat exchanger is connected with one end of a horizontally arranged oil supply header through a pipeline, the inlets of a plurality of oil supply pumps are respectively connected to the oil supply header through pipelines, the outlets of a plurality of oil supply pumps respectively enter the compressors through oil supply branch pipes, and a liquid viewing mirror is arranged in the vertical section of the oil supply branch pipes, plate heat exchanger's coolant liquid import is connected with gas-liquid separator's export, gas-liquid separator's import department is connected with the pipeline of vertical installation and the terminal installation second valve of pipeline, the other end of second valve connects to the reservoir outward, the fourth valve is installed on the pipeline of the vertical installation in gas-liquid separator exit, the liquid storage pot is vertical to be fixed in the frame, the import on liquid storage pot upper portion is connected with plate heat exchanger's coolant liquid export through the third valve, the export of liquid storage pot lower part is connected with the pipeline of the vertical installation of gas-liquid separator import department through first valve, the pipeline that first valve is connected with first valve is in the horizontality, the upper end of solenoid valve is connected with plate heat exchanger's lubricating oil inlet pipeline through the pipeline, the lower extreme of solenoid valve is connected with plate heat exchanger's lubricating oil outlet pipeline through the pipeline.
Furthermore, one end of the oil supply collecting pipe is connected with a lubricating oil outlet of the plate heat exchanger, the other end of the oil supply collecting pipe is plugged in a welding mode, two ends of the oil supply collecting pipe are respectively provided with a support, the outer circle surface of the oil supply collecting pipe is provided with a plurality of circular holes, the circle centers of the circular holes are located on the same straight line, and the supports at two ends of the oil supply collecting pipe are fixed on the rack in a bolt connection mode.
Furthermore, the oil filter and the gas-liquid separator are both installed horizontally, the outlet directions of the oil filter and the gas-liquid separator are both horizontal directions, and the inlet directions of the oil filter and the gas-liquid separator are both vertical directions.
Furthermore, the electromagnetic valve and the pipeline connected with the electromagnetic valve adopt a vertical installation mode, and a control line of the electromagnetic valve is connected to the PLC output end of the control system of the parallel refrigeration compressor unit.
Furthermore, an overflow valve is installed at the bottom of the liquid storage tank, and an outlet at the top of the liquid storage tank is connected with an external liquid storage device.
By adopting the technical scheme, in the normal operation process of the parallel refrigeration compressor unit, if the temperature of the lubricating oil entering the compressor is within the designed value range, the fourth valve and the first valve are in the closed state at the moment, the second valve, the third valve and the fifth valve are in the open state, the electromagnetic valve is controlled to be in the open state by the control system of the parallel refrigeration compressor unit, the lubricating oil in the oil separator directly enters the oil supply header through the electromagnetic valve and the vertical pipeline connected with the electromagnetic valve after entering the oil filter through the oil pump valve at the moment, and the lubricating oil is provided for the compressors of the parallel refrigeration compressor unit. If the temperature of the lubricating oil entering the compressor is higher than the designed value range at a certain moment, the fourth valve is opened at the moment, the first valve is still in a closed state, the second valve, the third valve and the fifth valve are in an opened state, the electromagnetic valve is controlled to be in a closed state by a control system of the parallel refrigeration compressor unit, a circulating working medium externally connected with a liquid storage device enters the plate heat exchanger through the second valve, the fourth valve and the gas-liquid separator, then flows out of a cooling liquid outlet of the plate heat exchanger and enters the liquid storage tank through the third valve, the lubricating oil in the oil separator enters the plate heat exchanger after entering the oil filter and the fifth valve through the oil pump valve and then flows out of a lubricating oil outlet of the plate heat exchanger and enters the oil collecting pipe, the lubricating oil is cooled and cooled after the lubricating oil in the plate heat exchanger exchanges heat with the low-temperature circulating working medium, and the temperature of the lubricating oil entering the compressor is further ensured to be in the designed value range; if the circulating working medium entering the plate heat exchanger from the external liquid storage device is reduced or insufficient, the first valve can be opened at the moment, the circulating working medium inside the liquid storage tank enters the plate heat exchanger through the first valve, the fourth valve and the gas-liquid separator, and the lubricating oil inside the plate heat exchanger is continuously cooled. This lubricating oil cooling system utilizes the cold volume of the inside low temperature cycle working medium of reservoir, cools off and the cooling through plate heat exchanger to lubricating oil, and the cycle working medium after the intensification flows back to external reservoir in simultaneously, has not only reached the purpose of cooling lubricating oil, has also realized the reuse of cycle working medium moreover, has guaranteed the normal operating of parallelly connected compressor unit, has improved the utilization ratio of cycle working medium.
Parallel refrigeration compressor unit, including lubricating oil cooling system, the compressor, a machine support, the discharge header of breathing in and exhaust discharge header, wherein a plurality of compressors are fixed in the top of frame through its rag bolt, the discharge header of breathing in is fixed in the base of frame through the triangular seat of its bottom, the induction port of a plurality of compressors is respectively through breathing in the filter, the sixth valve is connected with the discharge header of breathing in, the discharge header is fixed in the inner chamber of frame and is in the lower part of a plurality of compressors, the gas vent of a plurality of compressors is connected with the discharge header through exhaust branch pipe respectively, oil separator and plate heat exchanger set up in one side of frame base and through the bolt fastening on the base of frame, the liquid storage pot is vertical to be installed in the top of frame.
Furthermore, the gas collecting pipe of breathing in adopt the horizontal installation mode, a plurality of circular port is seted up at the top of the gas collecting pipe of breathing in, the centre of a circle of each circular port is in same straight line, the quantity of circular port equals the quantity of compressor.
Furthermore, the exhaust gas collecting pipe adopts a horizontal installation mode, a plurality of circular holes are formed in the top of the exhaust gas collecting pipe, the circle centers of the circular holes are located on the same straight line, and the number of the circular holes is equal to that of the compressors.
Further, the frame be the channel-section steel, be connected through the welded mode between channel-section steel and the channel-section steel.
Furthermore, the parallel refrigeration compressor unit also comprises a control system which consists of a temperature sensor and a PLC (programmable logic controller), wherein the temperature sensor is arranged on the oil supply collecting pipe, an analog signal of the temperature sensor enters a CPU (central processing unit) of the PLC through the input end of the PLC, and the PLC controls the opening and closing of the electromagnetic valve according to the temperature value change of the lubricating oil.
By adopting the technical scheme, the parallel refrigeration compressor unit is integrated with the lubricating oil cooling system, the compressor, the air suction collecting pipe, the air exhaust collecting pipe and the valve assembly, the integration degree is higher, and meanwhile, the lubricating oil cooling system is connected with the external liquid storage device, so that the cold-heat separation is realized; in addition, the control system of the parallel refrigeration compressor unit can automatically detect the temperature of lubricating oil in the oil supply collecting pipe and control the opening and closing of the electromagnetic valve, so that automatic control is achieved, and the operation detection of the parallel refrigeration compressor unit is greatly facilitated.
Drawings
FIG. 1 is a view showing a structure of an oil supply system according to the present invention;
FIG. 2 is a structural diagram of an oil supply system of the belt frame of the present invention;
fig. 3 is an overall structural view of the parallel refrigeration compressor unit of the present invention;
FIG. 4 is a rear view of FIG. 3;
fig. 5 is a structural diagram of the plate heat exchanger of the present invention.
Labeled as: 1: a compressor; 21: a liquid viewing mirror; 22: an oil supply branch pipe; 23: an oil supply pump; 24: an oil supply header; 25: a support; 3: a liquid storage tank; 4: an oil separator; 41: an oil inlet; 42: an oil outlet; 5: an oil filter; 6: an oil pump valve; 61: a first valve; 62: a second valve; 63: a third valve; 64: a fourth valve; 65: a fifth valve; 66: a sixth valve; 7: a gas-liquid separator; 8: a plate heat exchanger; 81: a coolant outlet; 82: a coolant inlet; 83: a lubricant outlet; 84: a lubricating oil inlet; 9: an electromagnetic valve; 10: a frame; 11: an air intake filter; 12: a gas suction and collection pipe; 13: and an exhaust gas collecting pipe.
Detailed Description
In order to make the technical problem, technical solution and implementation effect to be solved by the present invention clearer, an embodiment of the present invention is further described below with reference to fig. 1 to 5:
referring to fig. 1-5, a lubricating oil cooling system of the present invention comprises a liquid storage tank 3, an oil separator 4, an oil filter 5, an oil pump valve 6, a gas-liquid separator 7, a plate heat exchanger 8, a solenoid valve (9), an oil supply header 24, an oil supply pump 23, a liquid observing mirror 21, an oil supply branch pipe 22 and a valve assembly, wherein exhaust ports of a plurality of compressors 1 are connected to an oil inlet 41 of the oil separator 4 through an exhaust header respectively, an oil outlet 42 of the oil separator 4 is externally connected to a condenser, the oil pump valve 6 is installed at a position on a side wall of the oil separator 4 near the bottom of the oil separator 4, the oil filter 5 is fixed at an outlet of the oil pump valve 6, an outlet of the oil filter 5 is connected to a lubricating oil inlet 84 of the plate heat exchanger 8 through a fifth valve 65, a lubricating oil outlet 83 of the plate heat exchanger 8 is connected to one end of the oil supply header 24 through a pipeline, inlets of the plurality of the oil pump 23 are connected to the oil supply header 24 through pipelines respectively, outlets of the oil supply pumps 23 enter the compressors 1 through the oil supply branch pipe 22, the oil supply mirror 21 is installed in a vertical section of the oil supply branch pipe 22, an inlet 82 of the gas-liquid separator 8 is connected to an upper end of the liquid storage tank 7, an outlet of the liquid storage tank 7, an upper end of the vertical heat exchanger 7, an inlet of the vertical heat exchanger 7 is connected to an inlet of the vertical heat exchanger 7, and an inlet of the vertical heat exchanger 7, an outlet of the vertical heat exchanger 7, an inlet of the vertical heat exchanger 7, an outlet of the vertical heat exchanger 7 is connected to an inlet of the vertical heat exchanger 7, and an inlet of the vertical heat exchanger 7, an inlet of the vertical pipe 64, the pipeline of the first valve 61 connected with the first valve 61 is in a horizontal state, the upper end of the electromagnetic valve (9) is connected with the lubricating oil inlet 84 pipeline of the plate heat exchanger 8 through a pipeline, and the lower end of the electromagnetic valve (9) is connected with the lubricating oil outlet 83 pipeline of the plate heat exchanger 8 through a pipeline.
Preferably, one end of the oil supply header 24 is connected to the lubricant outlet 83 of the plate heat exchanger 8, the other end of the oil supply header 24 is sealed by welding, two ends of the oil supply header 24 are respectively installed with a support 25, the outer circumferential surface of the oil supply header 24 is provided with a plurality of circular holes, the centers of the circular holes are located on the same straight line, the supports 25 at the two ends of the oil supply header 24 are fixed on the frame 10 by bolting, the oil supply header 24 is connected to the oil supply pump 23 of each compressor 1 by a plurality of branch pipes, and the oil supply pump 23 of each compressor 1 provides cooled lubricant for the corresponding compressor 1.
Preferably, the oil filter 5 and the gas-liquid separator 7 are both horizontally installed, the outlet directions of the oil filter 5 and the gas-liquid separator 7 are both horizontal directions, the inlet directions of the oil filter 5 and the gas-liquid separator 7 are both vertical directions, the oil filter 5 filters the lubricating oil flowing out of the oil separator 4, it is ensured that the lubricating oil entering the plate heat exchanger 8 is not doped with solid impurities, the gas-liquid separator 7 can separate the gaseous circulating working medium and the liquid circulating working medium entering the plate heat exchanger 8, so that the circulating working medium entering the plate heat exchanger 8 is in a liquid state, and the separated gaseous circulating working medium flows back to the liquid storage tank 3 along the inlet pipeline of the gas-liquid separator 7.
Preferably, the electromagnetic valve (9) and a pipeline connected with the electromagnetic valve (9) are vertically installed, a control line of the electromagnetic valve (9) is connected to a PLC output end of a control system of the parallel refrigeration compressor unit, and the PLC of the control system controls the opening and closing of the electromagnetic valve (9).
Preferably, an overflow valve is installed at the bottom of the liquid storage tank 3, and an outlet at the top of the liquid storage tank 3 is connected with an external liquid storage device.
By adopting the technical scheme, in the normal operation process of the parallel refrigeration compressor unit, if the temperature of the lubricating oil entering the compressor 1 is in the designed value range, the fourth valve 64 and the first valve 61 are in the closed state, the second valve 62, the third valve 63 and the fifth valve 65 are in the open state, the electromagnetic valve (9) is controlled to be in the open state by the control system of the parallel refrigeration compressor unit, and at the moment, the lubricating oil in the oil separator 4 directly enters the oil filter 5 through the oil pump valve 6 and then enters the oil supply header 24 through the electromagnetic valve (9) and the vertical pipeline connected with the electromagnetic valve (9) to provide the lubricating oil for the compressor 1 of the parallel refrigeration compressor unit. If the temperature of the lubricating oil entering the compressor 1 at a certain moment is higher than the designed value range, the fourth valve 64 is opened at the moment, the first valve 61 is still in a closed state, the second valve 62, the third valve 63 and the fifth valve 65 are in an opened state, the electromagnetic valve (9) is controlled to be in a closed state by a control system of the parallel refrigeration compressor set, the circulating working medium externally connected with a liquid accumulator enters the plate heat exchanger 8 through the second valve 62, the fourth valve 64 and the gas-liquid separator 7, then flows out from a cooling liquid outlet 81 of the plate heat exchanger 8 and enters the liquid storage tank 3 through the third valve 63, the lubricating oil in the oil separator 4 enters the plate heat exchanger 8 after entering the oil filter 5 and the fifth valve 65 through the oil pump valve 6, then flows out from a lubricating oil outlet 83 of the plate heat exchanger 8 and enters the oil header, and the lubricating oil is cooled and cooled after the lubricating oil in the plate heat exchanger 8 exchanges heat with the low-temperature circulating working medium, and the temperature of the lubricating oil entering the compressor 1 is further ensured to be in the designed value range; if the circulating working medium entering the plate heat exchanger 8 from the external liquid storage device is reduced or insufficient, the first valve 61 can be opened at the moment, the circulating working medium inside the liquid storage tank 3 enters the plate heat exchanger 8 through the first valve 61, the fourth valve 64 and the gas-liquid separator 7, and the lubricating oil inside the plate heat exchanger 8 is continuously cooled. This lubricating oil cooling system utilizes the cold volume of the inside low temperature cycle working medium of reservoir, cools off and the cooling through plate heat exchanger 8 to lubricating oil, and the cycle working medium after the intensification flows back to external reservoir in simultaneously, has not only reached the purpose of cooling lubricating oil, has also realized the reuse of cycle working medium moreover, has guaranteed the normal operating of parallelly connected compressor unit, has improved the utilization ratio of cycle working medium.
The parallel refrigeration compressor unit comprises a lubricating oil cooling system, compressors 1, a rack 10, an air suction gas collecting pipe 12 and an air exhaust gas collecting pipe 13, wherein a plurality of compressors 1 are fixed to the top of the rack 10 through foundation bolts of the compressors, the air suction gas collecting pipe 12 is fixed to the base of the rack 10 through a triangular seat at the bottom of the air suction gas collecting pipe, air suction ports of the compressors 1 are respectively connected with the air suction gas collecting pipe 12 through an air suction filter 11 and a sixth valve 66, the air exhaust gas collecting pipe 13 is fixed in an inner cavity of the rack 10 and located at the lower portion of the compressors 1, exhaust ports of the compressors 1 are respectively connected with the air exhaust gas collecting pipe 13 through an air exhaust branch pipe, an oil separator 4 and a plate type heat exchanger 8 are arranged on one side of the base of the rack 10 and fixed to the base of the rack 10 through bolts, and a liquid storage tank 3 is vertically installed at the top of the rack 10.
Preferably, the air suction collecting pipe 12 is installed horizontally, a plurality of circular holes are formed in the top of the air suction collecting pipe 12, the circle centers of the circular holes are located on the same straight line, the number of the circular holes is equal to that of the compressors 1, and sufficient gaseous circulating working media are filled in the air suction collecting pipe 12 to provide gaseous circulating working media for the compressors 1 of the parallel refrigeration compressor units.
Preferably, the exhaust gas collecting pipe 13 is installed horizontally, a plurality of circular holes are formed in the top of the exhaust gas collecting pipe 13, the circle centers of the circular holes are located on the same straight line, the number of the circular holes is equal to that of the compressors 1, the compressors 1 in the parallel connection refrigeration compressor set in the running state discharge the discharged high-temperature and high-pressure circulating working medium to the exhaust gas collecting pipe 13, and the high-temperature and high-pressure circulating working medium enters the oil separator 4 through the exhaust gas collecting pipe 13.
Preferably, the frame 10 is made of channel steel, the channel steel is connected with the channel steel in a welding manner, and all the components of the parallel refrigeration compressor unit are concentrated on the frame 10.
Preferably, the parallel refrigeration compressor unit further comprises a control system, the control system is composed of a temperature sensor and a PLC (programmable logic controller), the temperature sensor is installed on the oil supply header 24, an analog signal of the temperature sensor enters a CPU (central processing unit) of the PLC through an input end of the PLC, and the PLC controls the opening and closing of the electromagnetic valve (9) according to the temperature value change of lubricating oil.
By adopting the technical scheme, the parallel refrigeration compressor unit is integrated with the lubricating oil cooling system, the compressor 1, the air suction collecting pipe 12, the air exhaust collecting pipe 13 and the valve assembly, the integration degree is higher, and meanwhile, the lubricating oil cooling system is connected with the external liquid storage device, so that the cold-heat separation is realized; in addition, the control system of the parallel refrigeration compressor unit can automatically detect the temperature of lubricating oil in the oil supply header 24 and control the opening and closing of the electromagnetic valve (9), so that automatic control is achieved, and the operation detection of the parallel refrigeration compressor unit is greatly facilitated.
Claims (10)
1. The utility model provides a lubricating oil cooling system, includes liquid storage pot (3), oil separator (4), oil filter (5), oil pump valve (6), vapour and liquid separator (7), plate heat exchanger (8), solenoid valve (9), oil supply header (24), oil feed pump (23), looks liquid mirror (21) and oil supply branch pipe (22) and valve subassembly, its characterized in that: the exhaust ports of a plurality of compressors (1) are respectively connected to an oil content inlet (41) of an oil separator (4) through an exhaust manifold, an oil content outlet (42) of the oil separator (4) is externally connected to a condenser, an oil pump valve (6) is installed on the side wall of the oil separator (4) close to the bottom of the oil separator (4), an oil filter (5) is fixed at the outlet of the oil pump valve (6), the outlet of the oil filter (5) is connected with a fifth valve (65) and is connected with a lubricating oil inlet (84) of a plate heat exchanger (8), a lubricating oil outlet (83) of the plate heat exchanger (8) is connected with one end of a horizontally installed oil supply manifold (24) through a pipeline, the inlets of a plurality of oil supply pumps (23) are respectively connected to the oil supply manifold (24) through pipelines, the outlets of the plurality of oil supply pumps (23) respectively enter the compressors (1) through oil supply branch pipelines (22), a liquid observation mirror (21) is installed in the vertical section of the oil supply branch pipelines (22), a cooling liquid inlet (82) of the plate heat exchanger (8) is connected with the outlet of a gas-liquid separator (7), the gas-liquid valve (7) is installed outside the second valve and is connected with a vertical pipeline (62) installed at the outlet of a fourth valve installed outside the second valve (7), liquid storage pot (3) vertical fixation is in on frame (10), the import on liquid storage pot (3) upper portion is connected with coolant outlet (81) of plate heat exchanger (8) through third valve (63), the export of liquid storage pot (3) lower part is connected with the pipeline of the vertical installation of vapour and liquid separator (7) import department through first valve (61), the pipeline that first valve (61) are connected with first valve (61) is in the horizontality, the upper end of solenoid valve (9) is connected with lubricating oil import (84) pipeline of plate heat exchanger (8) through the pipeline, the lower extreme of solenoid valve (9) is connected with lubricating oil export (83) pipeline of plate heat exchanger (8) through the pipeline.
2. The oil cooling system of claim 1, wherein: one end of the oil supply collecting pipe (24) is connected with a lubricating oil outlet (83) of the plate type heat exchanger (8), the other end of the oil supply collecting pipe (24) is plugged in a welding mode, two ends of the oil supply collecting pipe (24) are respectively provided with a support (25), a plurality of circular holes are formed in the outer circle surface of the oil supply collecting pipe (24), the circle centers of the circular holes are located on the same straight line, and the supports (25) at the two ends of the oil supply collecting pipe (24) are fixed on the rack (10) in a bolt connection mode.
3. The oil cooling system of claim 1, wherein: the oil filter (5) and the gas-liquid separator (7) are both horizontally installed, the outlet directions of the oil filter (5) and the gas-liquid separator (7) are both horizontal directions, and the inlet directions of the oil filter (5) and the gas-liquid separator (7) are both vertical directions.
4. The oil cooling system of claim 1, wherein: the solenoid valve (9) and the pipeline connected with the solenoid valve (9) adopt a vertical installation mode, and a control line of the solenoid valve (9) is connected to the PLC output end of the control system of the parallel refrigeration compressor unit.
5. The oil cooling system of claim 1, wherein: an overflow valve is arranged at the bottom of the liquid storage tank (3), and the top outlet of the liquid storage tank (3) is connected with an external liquid storage device.
6. Parallel refrigeration compressor unit, including lubricating oil cooling system, compressor (1), frame (10), air-breathing gas collecting pipe (12) and exhaust gas collecting pipe (13), its characterized in that: the air-suction gas collecting pipe (12) is fixed to the base of the rack (10) through a triangular seat at the bottom of the air-suction gas collecting pipe, air suction ports of the compressors (1) are respectively connected with the air-suction gas collecting pipe (12) through an air-suction filter (11) and a sixth valve (66), an exhaust gas collecting pipe (13) is fixed in an inner cavity of the rack (10) and is positioned at the lower parts of the compressors (1), exhaust ports of the compressors (1) are respectively connected with the exhaust gas collecting pipe (13) through exhaust branch pipes, an oil separator (4) and a plate type heat exchanger (8) are arranged on one side of the base of the rack (10) and are fixed to the base of the rack (10) through bolts, and the liquid storage tank (3) is vertically installed at the top of the rack (10).
7. The parallel refrigeration compressor train of claim 6, wherein: the air suction gas collecting pipe (12) adopts a horizontal installation mode, a plurality of circular holes are formed in the top of the air suction gas collecting pipe (12), the circle centers of the circular holes are located on the same straight line, and the number of the circular holes is equal to that of the compressors (1).
8. The parallel refrigeration compressor train of claim 6, wherein: the exhaust gas collecting pipe (13) adopts a horizontal installation mode, a plurality of circular holes are formed in the top of the exhaust gas collecting pipe (13), the circle centers of the circular holes are located on the same straight line, and the number of the circular holes is equal to that of the compressors (1).
9. The parallel refrigeration compressor train of claim 6, wherein: the rack (10) is made of channel steel, and the channel steel is connected with the channel steel in a welding mode.
10. The parallel refrigeration compressor train of claim 6, wherein: the lubricating oil temperature control system further comprises a control system, the control system is composed of a temperature sensor and a PLC (programmable logic controller), the temperature sensor is installed on the oil supply collecting pipe (24), an analog signal of the temperature sensor enters a CPU (central processing unit) of the PLC through an input end of the PLC, and the PLC controls the opening and closing of the electromagnetic valve (9) according to the temperature value change of lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222868589.XU CN218565802U (en) | 2022-10-31 | 2022-10-31 | Lubricating oil cooling system and parallel refrigeration compressor set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222868589.XU CN218565802U (en) | 2022-10-31 | 2022-10-31 | Lubricating oil cooling system and parallel refrigeration compressor set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218565802U true CN218565802U (en) | 2023-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222868589.XU Active CN218565802U (en) | 2022-10-31 | 2022-10-31 | Lubricating oil cooling system and parallel refrigeration compressor set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218565802U (en) |
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2022
- 2022-10-31 CN CN202222868589.XU patent/CN218565802U/en active Active
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