CN210243657U - Lubricating oil temperature test system - Google Patents
Lubricating oil temperature test system Download PDFInfo
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- CN210243657U CN210243657U CN201921013271.5U CN201921013271U CN210243657U CN 210243657 U CN210243657 U CN 210243657U CN 201921013271 U CN201921013271 U CN 201921013271U CN 210243657 U CN210243657 U CN 210243657U
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Abstract
The application discloses lubricating oil temperature test system relates to the experimental technical field of lubricating oil. The lubricating oil temperature test system comprises a lubricating oil pipeline, a lubricating oil conveying device, a low-temperature preparation device, a heater and a lubricating oil analysis device, wherein an input port of the low-temperature preparation device is connected with an output port of the lubricating oil conveying device through the lubricating oil pipeline; the input port of the heater is connected with the output port of the low-temperature preparation device through a lubricating oil pipeline; the input port of the lubricating oil analysis device is connected with the output port of the heater through a lubricating oil pipeline. Therefore, the lubricating oil temperature-changing device and the heater act on the lubricating oil together to simulate the space environment, namely the working condition with large high-low temperature difference, the lubricating oil is cooled by the low-temperature preparation device firstly, then the temperature is raised by the heater, then the lubricating oil subjected to rapid temperature change is introduced into the lubricating oil analysis device and subjected to physical property analysis, and whether the physical property meets the lubricating requirement of the spacecraft is detected.
Description
Technical Field
The application relates to the technical field of lubricating oil tests, in particular to a lubricating oil temperature test system.
Background
In the prior art, for a long-life spacecraft (such as a space station 'Tiangong I' where a Shenzhou Ten spacecraft is butted), the volatilization of lubricating oil needs to be minimized so as to prevent the lubricating oil steam from accumulating for a long time and polluting the space station, so that the lubricating oil with low volatility is needed.
In two years of space flight, the Tiangong-I-shaped aircraft needs to be intersected and butted with the Shenzhou No. eight, No. nine and No. ten in sequence, the precision requirements on activities such as flight, orbital transfer and the like are high, and lubricating oil with low saturated vapor pressure and surface tension is needed in order to avoid pollution to high-precision instruments.
The surface of the Tiangong I ship and the Shenzhou ship facing the sun in the space has a temperature of 100 ℃, the surface of the Tiangong I ship facing the sun has a temperature of-100 ℃, the temperature difference is close to 200 ℃, and lubricating oil is easy to vaporize or decompose at the temperature to lose the lubricating effect, so the lubricating oil needs to have excellent viscosity-temperature property, high-temperature safety and low-temperature fluidity in the environment with large temperature difference.
However, in the prior art, a system for testing lubricating oil is not available, and whether the lubricating oil meets the design performance and reliability in the space environment or not cannot be verified.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a lubricating oil temperature test system to solve the technical problem that whether lubricating oil meets the design performance and reliability in a space environment or not can not be verified in the prior art.
The above technical problem of the present application is mainly solved by the following technical solutions:
a lubricating oil temperature test system is used for testing the temperature of lubricating oil and comprises a lubricating oil pipeline, a lubricating oil conveying device, a low-temperature preparation device, a heater and a lubricating oil analysis device, wherein the lubricating oil pipeline is used for conveying the lubricating oil; the lubricating oil conveying device is used for placing and conveying the lubricating oil; an input port of the low-temperature preparation device is connected with an output port of the lubricating oil conveying device through the lubricating oil pipeline and used for cooling the lubricating oil; an input port of the heater is connected with an output port of the low-temperature preparation device through the lubricating oil pipeline and used for heating the lubricating oil; and an input port of the lubricating oil analysis device is connected with an output port of the heater through the lubricating oil pipeline and is used for analyzing the lubricating oil.
Therefore, the temperature of the lubricating oil is adjusted through the combined action of the low-temperature preparation device and the heater on the lubricating oil, the space environment is simulated, namely the working condition with large high-low temperature difference, the lubricating oil is cooled through the low-temperature preparation device firstly, the lubricating oil reaches the low limit temperature, then the temperature of the lubricating oil reaches the high limit temperature through the heater, then the lubricating oil subjected to rapid temperature change is introduced into the lubricating oil analysis device, the physical property of the lubricating oil is analyzed, whether the physical property of the lubricating oil meets the lubricating requirement of the spacecraft is detected, and whether the lubricating oil meets the design performance and the reliability in the space environment is verified.
The lubricating oil analysis device can be a lubricating oil physical property analyzer and can be used for detecting the physicochemical properties of the lubricating oil, such as temperature, density, viscosity index, flash point, pH value, moisture, condensation point, pour point and the like, so as to verify whether the lubricating oil meets the requirements of the spacecraft on the volatility, viscosity-temperature property, high-temperature safety, low-temperature fluidity, saturated vapor pressure, surface tension and the like of the lubricating oil in the space environment.
In one embodiment, the low-temperature preparation device comprises a lubricating oil heat exchanger and a refrigeration mechanism, wherein the refrigeration mechanism is connected with the lubricating oil heat exchanger and used for cooling the lubricating oil.
The lubricating oil heat exchanger can be heat exchanger, and wherein, the input port of lubricating oil heat exchanger links to each other with the delivery outlet of lubricating oil pump, and the delivery outlet of lubricating oil heat exchanger links to each other with the input port of heater, and lubricating oil carries out the heat exchange with refrigeration mechanism in the lubricating oil heat exchanger, and then can obtain cryogenic lubricating oil of limit, and cryogenic lubricating oil of limit is passed through the heater intensification again after that, can obtain the lubricating oil of extreme high temperature.
In one embodiment, the low temperature preparation device includes a refrigerant that circulates in the refrigeration mechanism.
The lubricating oil exchanges heat with the refrigerant in the lubricating oil heat exchanger, and then the lubricating oil with the extreme low temperature is obtained.
In one embodiment, the refrigerant has a low condensation temperature and a boiling point of-110 ℃ or below-110 ℃. Wherein, the refrigerant can be liquid nitrogen and other refrigerating fluids.
In one embodiment, the refrigeration mechanism includes: the refrigeration system comprises a refrigeration pipeline, a compressor, a precooler, a second-stage heat exchanger, a third-stage heat exchanger, a first-stage liquid storage device, a second-stage liquid storage device and a third-stage liquid storage device, wherein the compressor, the precooler, the first-stage liquid storage device and the second-stage heat exchanger are connected through the refrigeration pipeline to form a first circulation loop; the first-stage liquid storage device, the second-stage heat exchanger, the second-stage liquid storage device and the third-stage heat exchanger are connected through the refrigeration pipeline to form a second circulation loop; the second-stage reservoir, the third-stage heat exchanger and the third-stage reservoir are connected with the lubricating oil heat exchanger through the refrigeration pipeline to form a third circulation loop.
The low-temperature preparation device is divided into the first circulation loop, the second circulation loop and the third circulation loop, the cooling effect is good, and after the refrigerant passes through the first-stage heat exchanger, the second-stage heat exchanger and the third-stage heat exchanger, the liquid refrigerant at the temperature of-100 ℃ or below-100 ℃ can be obtained at least finally.
In one embodiment, the precooler may be a heat exchanger or an evaporative cooler that reduces the temperature of the refrigerant.
In one embodiment, the precooler is arranged behind the compressor, and the refrigerant is cooled by the precooler to obtain a liquid refrigerant at-40 ℃ (namely, the temperature of the liquid refrigerant is reduced to-40 ℃); the second-stage heat exchanger is arranged behind the precooler, and the refrigerant is cooled by the second-stage heat exchanger to obtain a liquid refrigerant with the temperature of-80 ℃ (namely, the temperature of the liquid refrigerant is reduced to-80 ℃); the third heat exchanger is arranged behind the second heat exchanger, and the refrigerant is cooled by the third heat exchanger to obtain the liquid refrigerant with the temperature of-100 ℃ or below-100 ℃ (namely, the temperature of the liquid refrigerant is reduced to-100 ℃ or below-100 ℃).
In an embodiment, the refrigeration mechanism further includes a first-stage capillary tube, the first-stage capillary tube is disposed in the second circulation loop, and one end of the first-stage capillary tube is connected to the first-stage reservoir, and the other end of the first-stage capillary tube is connected to the second-stage heat exchanger.
This application can play the throttle effect through setting up first order capillary. Wherein, the length and the pipe diameter of the first-stage capillary tube can be selected according to different working conditions and refrigerants with different refrigerating capacities.
In an embodiment, the refrigeration mechanism further includes a second-stage capillary tube, the second-stage capillary tube is disposed in the third circulation loop, and one end of the second-stage capillary tube is connected to the second-stage reservoir, and the other end of the second-stage capillary tube is connected to the third-stage heat exchanger.
This application can play the throttle effect through setting up second level capillary. Wherein, the length and the pipe diameter of the second-stage capillary can be selected according to different working conditions and refrigerants with different refrigerating capacities.
In one embodiment, the non-liquefied refrigerant passes through a precooler and a first-stage liquid storage device to obtain a liquid refrigerant at the temperature of minus 40 ℃; the refrigerant passes through a first-stage capillary tube, a second-stage heat exchanger and a second-stage liquid storage device to obtain a liquid refrigerant which is cooled to-80 ℃; the refrigerant finally passes through a second-stage capillary tube, a third-stage heat exchanger and a third-stage liquid storage device to obtain the liquid refrigerant which is cooled to be below-100 ℃ or below-100 ℃, and the liquid refrigerant at the temperature of-100 ℃ or below-100 ℃ is subjected to heat exchange with lubricating oil through the lubricating oil heat exchanger.
In an embodiment, the refrigeration mechanism further includes an expansion valve, the expansion valve is disposed in the third circulation loop, and one end of the expansion valve is connected to the third-stage reservoir, and the other end of the expansion valve is connected to the lubricating oil heat exchanger.
The setting of the expansion valve can accurately control the flow of the refrigerant entering the lubricating oil heat exchanger in the low-temperature preparation device.
In one embodiment, the second-stage heat exchanger and the third-stage heat exchanger are plate heat exchangers.
The plate heat exchanger is a high-efficiency heat exchanger formed by stacking a series of metal sheets with certain corrugated shapes, thin rectangular channels are formed among various plates, and heat exchange is carried out through the plates. The second-stage heat exchanger and the third-stage heat exchanger are plate heat exchangers, and have the advantages of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, wide application, long service life and the like.
In one embodiment, the heater is a resistive heater.
The resistive heater is a heating device that emits heat through an electric heater by using electric current to heat. The heater of the application is a resistance heater, and has the advantages of small volume, high heating power, high temperature control precision and the like.
In one embodiment, the lubricating oil delivery device comprises an oil expansion tank and an oil pump; the input port of the oil pump is connected with the oil expansion tank through the lubricating oil pipeline, and the output port of the oil pump is connected with the lubricating oil heat exchanger through the lubricating oil pipeline.
The oil pump can be used as a power source and used for providing power for circulating lubricating oil in the lubricating oil pipeline; and the oil expansion tank is used for accommodating lubricating oil, and can overflow or supplement a lubricating oil system through the volume difference generated by the large temperature difference of the lubricating oil under the working conditions of high and low limit.
In one embodiment, the output port of the lubricant analysis device is connected to the input port of the lubricant delivery device via a lubricant conduit. Namely, the lubricating oil temperature test system forms a circulation loop through the lubricating oil pipeline, so that the change condition of the physical property of the lubricating oil after repeated large temperature difference changes can be detected.
Compared with the prior art, the beneficial effects of the application are that: therefore, the temperature of the lubricating oil is adjusted through the combined action of the low-temperature preparation device and the heater on the lubricating oil, the space environment is simulated, namely the working condition with large high-low temperature difference, the lubricating oil is cooled through the low-temperature preparation device firstly, the lubricating oil reaches the low limit temperature, then the temperature of the lubricating oil reaches the high limit temperature through the heater, then the lubricating oil subjected to rapid temperature change is introduced into the lubricating oil analysis device, the physical property of the lubricating oil is analyzed, whether the physical property of the lubricating oil meets the lubricating requirement of the spacecraft is detected, and whether the lubricating oil meets the design performance and the reliability in the space environment is verified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of a lubricating oil temperature testing system according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a cryogenic preparation device according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a lubricating oil temperature testing system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a lubricating oil temperature testing system according to an embodiment of the present application.
Icon: 100-lube temperature test system; 1-lubricating oil; 2-lubricating oil pipeline; 3-a lubricant oil delivery device; 31-oil expansion tank; 32-an oil pump; 4-a low temperature preparation device; 41-lubricating oil heat exchanger; 42-a refrigeration mechanism; d01-compressor; d02-precooler; d03-first stage reservoir; d04-second stage heat exchanger; d05-third stage heat exchanger; d06-second stage reservoir; d07-third stage reservoir; d08-first stage capillary; d09 — second stage capillary; d11-expansion valve; d12 — refrigeration circuit; 42 a-a first circulation loop; 42 b-a second circulation loop; 42 c-a third circulation loop; 43-a refrigerant; 5-a heater; 6-lubricating oil analysis device.
Detailed Description
The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.
In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a lubricating oil temperature testing system 100 according to an embodiment of the present application. A lubricating oil temperature test system 100 is used for testing the temperature of lubricating oil and comprises a lubricating oil pipeline 2, a lubricating oil conveying device 3, a low-temperature preparation device 4, a heater 5 and a lubricating oil analysis device 6.
The lubricating oil pipeline 2 is used for conveying lubricating oil 1; the lubricating oil conveying device 3 is used for placing and conveying lubricating oil 1 through the lubricating oil pipeline 2; an input port of the low-temperature preparation device 4 is connected with an output port of the lubricating oil conveying device 3 through a lubricating oil pipeline 2 and used for cooling the lubricating oil 1; an input port of the heater 5 is connected with an output port of the low-temperature preparation device 4 through the lubricating oil pipeline 2 and used for heating the lubricating oil 1; an input port of the lubricating oil analyzing device 6 is connected to an output port of the heater 5 through the lubricating oil pipe 2, and is used for analyzing the lubricating oil 1.
Therefore, the low-temperature preparation device 4 and the heater 5 act on the lubricating oil 1 together to adjust the temperature of the lubricating oil 1, and the space environment is simulated, namely the working condition with large high-low temperature difference is simulated. Firstly, the lubricating oil 1 is cooled by a low-temperature preparation device 4, the lubricating oil 1 reaches the limit low temperature, then the temperature is raised by a heater 5, the lubricating oil 1 reaches the limit high temperature, then the lubricating oil 1 subjected to rapid temperature change is introduced into a lubricating oil analysis device 6, physical property analysis is carried out on the lubricating oil 1, whether the physical property meets the lubricating requirement of a spacecraft is detected, and whether the lubricating oil 1 meets the design performance and reliability in the space environment is verified.
The lubricating oil analysis device 6 can be a lubricating oil 1 physical property analyzer, and can be used for detecting the physicochemical properties of the lubricating oil 1, such as temperature, density, viscosity index, flash point, pH value, moisture, condensation point, pour point and the like, so as to verify whether the lubricating oil 1 meets the requirements of the spacecraft on the aspects of volatility, viscosity-temperature property, high-temperature safety, low-temperature fluidity, saturated vapor pressure, surface tension and the like of the lubricating oil 1 in the space environment.
Fig. 2 is a schematic structural diagram of a low-temperature preparation apparatus 4 according to an embodiment of the present disclosure. The low-temperature preparation device 4 comprises a lubricating oil heat exchanger 41 and a refrigeration mechanism 42, wherein the refrigeration mechanism 42 is connected with the lubricating oil heat exchanger 41 and used for cooling the lubricating oil 1.
The low temperature producing apparatus 4 includes a refrigerant 43, and the refrigerant 43 circulates in the refrigeration mechanism 42. The lubricating oil 1 exchanges heat with the refrigerant 43 in the lubricating oil heat exchanger 41, and the lubricating oil 1 at a minimum temperature is obtained. The refrigeration mechanism 42 includes a refrigeration line D12 for conveying refrigerant 43. In one embodiment, the refrigerant 43 has a low condensation temperature and a boiling point of-110 ℃ or below-110 ℃. The refrigerant 43 may be a refrigerant such as liquid nitrogen.
Fig. 3 is a schematic structural diagram of a lubricating oil temperature testing system 100 according to an embodiment of the present application. The input port of lubricating oil heat exchanger 41 links to each other with the delivery outlet of lubricating oil 1 pump, and the delivery outlet of lubricating oil heat exchanger 41 links to each other with the input port of heater 5, and lubricating oil 1 carries out the heat exchange with refrigerating mechanism 42 in lubricating oil heat exchanger 41, and then can obtain cryogenic lubricating oil 1 of limit, and then cryogenic lubricating oil 1 of limit again heats up through heater 5, can obtain lubricating oil 1 of extreme high temperature. The lubricating oil heat exchanger 41 may be a heat exchanger or a heat exchanger.
The lubricating oil delivery device 3 includes an oil expansion tank 31 and an oil pump 32; an input port of the oil pump 32 is connected to the oil expansion tank 31 through the lubricating oil pipe 2, and an output port of the oil pump 32 is connected to the lubricating oil heat exchanger 41 through the lubricating oil pipe 2.
The oil pump 32 may serve as a power source for supplying power for circulating the lubricating oil 1 in the lubricating oil conduit 2; the oil expansion tank 31 is used for accommodating the lubricating oil 1, and the lubricating oil 1 can overflow or be supplemented to the lubricating oil 1 system through the volume difference generated by the large temperature difference of the lubricating oil 1 under the working conditions of high and low limit.
The output port of the lubricating oil analysis device 6 is connected with the input port of the lubricating oil delivery device 3 through the lubricating oil pipeline 2. That is, the lubricating oil temperature test system 100 forms a circulation loop through the lubricating oil pipe 2, so that the change state of the physical properties of the lubricating oil 1 after repeated large temperature difference changes can be detected.
Fig. 4 is a schematic structural diagram of a lubricating oil temperature testing system 100 according to an embodiment of the present application. Refrigeration mechanism 42 includes refrigeration line D12, compressor D01, precooler D02, second stage heat exchanger D04, third stage heat exchanger D05, first stage receiver D03, second stage receiver D06, and third stage receiver D07.
The compressor D01, the precooler D02, the first-stage liquid storage device D03 and the second-stage heat exchanger D04 are connected through a refrigeration pipeline D12 to form a first circulation loop 42 a; the first-stage liquid storage device D03, the second-stage heat exchanger D04, the second-stage liquid storage device D06 and the third-stage heat exchanger D05 are connected through a refrigeration pipeline D12 to form a second circulation loop 42 b; the second-stage receiver D06, the third-stage heat exchanger D05, and the third-stage receiver D07 are connected to the lubricating oil heat exchanger 41 through a refrigerant line D12 to form a third circulation circuit 42 c.
In the present application, the low-temperature preparation apparatus 4 is divided into the first circulation circuit 42a, the second circulation circuit 42b and the third circulation circuit 42c, and the liquid refrigerant 43 at least at-100 ℃ or below-100 ℃ can be finally obtained after the refrigerant 43 passes through the first-stage heat exchanger, the second-stage heat exchanger D04 and the third-stage heat exchanger D05.
In one embodiment, precooler D02 may be a heat exchanger or an evaporative cooler that reduces the temperature of refrigerant 43.
In one embodiment, the pre-cooler D02 is disposed after the compressor D01, and the refrigerant 43 is cooled by the pre-cooler D02 to obtain the liquid refrigerant 43 at-40 ℃ (i.e. the temperature of the liquid refrigerant 43 is reduced to-40 ℃); after the second-stage heat exchanger D04 is disposed in the precooler D02, the refrigerant 43 is cooled by the second-stage heat exchanger D04, and the liquid refrigerant 43 at-80 ℃ is obtained (i.e., the temperature of the liquid refrigerant 43 is reduced to-80 ℃); after the third heat exchanger D05 is disposed in the second heat exchanger D04, the refrigerant 43 is cooled by the third heat exchanger D05, and the liquid refrigerant 43 at-100 ℃ or below-100 ℃ is obtained (i.e., the temperature of the liquid refrigerant 43 is reduced to-100 ℃ or below-100 ℃).
The refrigeration mechanism 42 further includes a first-stage capillary tube D08, the first-stage capillary tube D08 is disposed in the second circulation loop 42b, and one end of the first-stage capillary tube D08 is connected to the first-stage liquid receiver D03, and the other end is connected to the second-stage heat exchanger D04.
This application can play the throttle effect through setting up first order capillary D08. Wherein, the length and the pipe diameter of the first stage capillary tube D08 can be selected according to different working conditions and different refrigerating capacities of the refrigerant 43.
The refrigeration mechanism 42 further includes a second-stage capillary tube D09, the second-stage capillary tube D09 is provided in the third circulation circuit 42c, and one end of the second-stage capillary tube D09 is connected to the second-stage liquid receiver D06, and the other end is connected to the third-stage heat exchanger D05.
This application can play the throttle effect through setting up second level capillary D09. Wherein, the length and the pipe diameter of the second stage capillary tube D09 can be selected according to different working conditions and different refrigerating capacities of the refrigerant 43.
In one embodiment, the non-liquefied refrigerant 43 passes through the pre-cooler D02 and the first-stage accumulator D03 to obtain a liquid refrigerant 43 at-40 ℃; the refrigerant 43 passes through a first-stage capillary tube D08, a second-stage heat exchanger D04 and a second-stage liquid storage device D06 to obtain a liquid refrigerant 43 which is cooled to-80 ℃; the refrigerant 43 finally passes through the second-stage capillary tube D09, the third-stage heat exchanger D05 and the third-stage liquid storage device D07 to obtain the liquid refrigerant 43 cooled to-100 ℃ or below-100 ℃, and the liquid refrigerant 43 at-100 ℃ or below-100 ℃ passes through the lubricating oil heat exchanger 41 to exchange heat with the lubricating oil 1.
In one embodiment, the refrigeration mechanism 42 further includes an expansion valve D11, the expansion valve D11 is disposed in the third circulation circuit 42c, and one end of the expansion valve D11 is connected to the third-stage reservoir D07, and the other end is connected to the lube oil heat exchanger 41.
The expansion valve D11 is provided to control the flow rate of the refrigerant 43 entering the lubricant oil heat exchanger 41 in the low temperature preparation device 4.
In one embodiment, the second stage heat exchanger D04 and the third stage heat exchanger D05 are plate heat exchangers. In one embodiment, the heater 5 is a resistive heater.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A lubricating oil temperature test system for testing the temperature of lubricating oil, comprising:
the lubricating oil conveying device is used for placing and conveying lubricating oil through a lubricating oil pipeline;
an input port of the low-temperature preparation device is connected with an output port of the lubricating oil conveying device through the lubricating oil pipeline and is used for cooling the lubricating oil;
an input port of the heater is connected with an output port of the low-temperature preparation device through the lubricating oil pipeline and is used for heating the lubricating oil;
and an input port of the lubricating oil analyzing device is connected with an output port of the heater through the lubricating oil pipeline and is used for analyzing the lubricating oil.
2. The system for testing the temperature of the lubricating oil according to claim 1, wherein the low-temperature preparation device comprises a lubricating oil heat exchanger and a refrigerating mechanism, and the refrigerating mechanism is connected with the lubricating oil heat exchanger and used for cooling the lubricating oil.
3. The system for testing the temperature of lubricating oil according to claim 2, wherein the low temperature preparation device comprises a refrigerant that circulates in the refrigeration mechanism.
4. The lubricating oil temperature testing system of claim 3, wherein the cryogenic preparation device comprises: a refrigeration pipeline, a compressor, a precooler, a second-stage heat exchanger, a third-stage heat exchanger, a first-stage liquid storage device, a second-stage liquid storage device and a third-stage liquid storage device,
the compressor, the precooler, the first-stage liquid storage device and the second-stage heat exchanger are connected through the refrigeration pipeline to form a first circulation loop;
the first-stage liquid storage device, the second-stage heat exchanger, the second-stage liquid storage device and the third-stage heat exchanger are connected through the refrigeration pipeline to form a second circulation loop;
the second-stage reservoir, the third-stage heat exchanger and the third-stage reservoir are connected with the lubricating oil heat exchanger through the refrigeration pipeline to form a third circulation loop.
5. The system for testing the temperature of lubricating oil according to claim 4, wherein the refrigeration mechanism further comprises a first-stage capillary tube, the first-stage capillary tube is arranged in the second circulation loop, and one end of the first-stage capillary tube is connected with the first-stage reservoir, and the other end of the first-stage capillary tube is connected with the second-stage heat exchanger.
6. The system for testing the temperature of lubricating oil according to claim 4, wherein the refrigeration mechanism further comprises a second-stage capillary tube, the second-stage capillary tube is arranged in the third circulation loop, and one end of the second-stage capillary tube is connected with the second-stage reservoir, and the other end of the second-stage capillary tube is connected with the third-stage heat exchanger.
7. The system for testing the temperature of lubricating oil according to claim 4, wherein the refrigeration mechanism further comprises an expansion valve, the expansion valve is disposed in the third circulation loop, and one end of the expansion valve is connected to the third-stage reservoir and the other end is connected to the lubricating oil heat exchanger.
8. The system for testing the temperature of lubricating oil according to claim 4, wherein the second-stage heat exchanger and the third-stage heat exchanger are plate heat exchangers, and the heater is an electric resistance heater.
9. The oil temperature test system of any one of claims 2 to 8, wherein the oil delivery device comprises an oil expansion tank and an oil pump; the input port of the oil pump is connected with the oil expansion tank through the lubricating oil pipeline, and the output port of the oil pump is connected with the lubricating oil heat exchanger through the lubricating oil pipeline.
10. The system of claim 9, wherein the output port of the lubricant analysis device is connected to the input port of the lubricant delivery device by a lubricant conduit.
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| CN201921013271.5U CN210243657U (en) | 2019-07-01 | 2019-07-01 | Lubricating oil temperature test system |
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| CN201921013271.5U CN210243657U (en) | 2019-07-01 | 2019-07-01 | Lubricating oil temperature test system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110208499A (en) * | 2019-07-01 | 2019-09-06 | 北京瑞尔腾普科技有限公司 | Lubricating oil temperature pilot system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208499A (en) * | 2019-07-01 | 2019-09-06 | 北京瑞尔腾普科技有限公司 | Lubricating oil temperature pilot system |
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