CN215833812U - Lubricating oil pump working environment temperature adjusting device - Google Patents
Lubricating oil pump working environment temperature adjusting device Download PDFInfo
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- CN215833812U CN215833812U CN202122356003.7U CN202122356003U CN215833812U CN 215833812 U CN215833812 U CN 215833812U CN 202122356003 U CN202122356003 U CN 202122356003U CN 215833812 U CN215833812 U CN 215833812U
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Abstract
The utility model belongs to the technical field of environmental high and low temperature, and discloses a lubricating oil pump working environment temperature adjusting device which comprises an environment box, a first axial flow fan, a second axial flow fan, an electric heater, a compressor unit, a condenser, an evaporator and a refrigerator; one end of the axial flow fan II is connected with the environment box, the other end of the axial flow fan II is connected with the electric heater, and the electric heater is connected with the environment box to form a heating loop; one end of the axial flow fan is connected with the environment box, the other end of the axial flow fan is connected with the refrigerator, and the refrigerator is connected with the environment box to form a refrigeration loop; the evaporator is connected with the refrigerator to form a secondary refrigerant loop; the condenser and the compressor unit are connected to the evaporator in series to form a refrigerating machine loop, the working environment temperature adjusting condition of the lubricating oil pump is met, the national standard requirements are met, the high-temperature and low-temperature working tests of the multi-model lubricating oil pump verify that the working environment temperature adjusting device of the lubricating oil pump meets the requirements of test documents, and the research and development progress of products is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of environmental high and low temperature, and particularly relates to a temperature adjusting device for a working environment of a lubricating oil pump.
Background
Most structures of aviation lubricating oil pumps adopt an inner meshing cycloid gear structure and mainly comprise a transmission shaft (spline structure), an inner rotor, an outer rotor, an interstage shell assembly, a sliding bearing, a pump shell and the like, and a driving motor carries out power input on the lubricating oil pumps in a spline connection mode during testing, so that the lubricating oil pumps are guaranteed to normally absorb and return oil.
The aviation lubricating oil pump which is independently developed and designed carries out an environment assessment test according to the requirements of a host and GJB150A, wherein the assessment state is the operating condition of the lubricating oil pump, the environmental temperature is (-55-250) DEG C, and the structure is called a lubricating oil pump working environment temperature adjusting device for short.
At present, no lubricating oil pump working environment temperature adjusting device of the type is available in China, the internal space of the environment box is large, operators can work by multiple persons, such as connecting pipelines and adjusting valves, the universality is very strong, and high and low temperature working tests of model lubricating oil pumps in the prior research, the pre-research and the like can be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a temperature adjusting device for the working environment of a lubricating oil pump, which can simulate the real working environment state of the lubricating oil pump.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme.
A temperature adjusting device for the working environment of a lubricating oil pump comprises an environment box, a first axial flow fan, a second axial flow fan, an electric heater, a compressor unit, a condenser, an evaporator and a refrigerator; one end of the axial flow fan II is connected with the environment box, the other end of the axial flow fan II is connected with the electric heater, and the electric heater is connected with the environment box to form a heating loop; one end of the axial flow fan is connected with the environment box, the other end of the axial flow fan is connected with the refrigerator, and the refrigerator is connected with the environment box to form a refrigeration loop; the evaporator is connected with the refrigerator to form a secondary refrigerant loop; the condenser and the compressor unit are connected in series and then connected to the evaporator to form a refrigerating machine loop.
Furthermore, the refrigerating circuit and the heating circuit are both provided with two electric valves.
Further, the environment box is internally provided with heat-insulating cotton with the thickness of 100 mm.
Furthermore, the heat insulation cotton is fixed on the inner wall surface of the environment box through a fixing frame.
And the axial flow fan I, the axial flow fan II, the electric heater, the compressor unit, the condenser, the evaporator and the refrigerator are all arranged in the independent heat insulation box.
Further, the electric heater adopts a 25kw finned electric heater; the compressor unit adopts two groups of 11kw cascade compressors.
The utility model has the beneficial effects that:
the lubricating oil pump working environment temperature adjusting device has the advantages that the lubricating oil pump working environment temperature adjusting condition is achieved, the national standard requirements are met, high-low temperature working tests of multi-model lubricating oil pumps verify that the lubricating oil pump working environment temperature adjusting device meets the requirements of test files, and the research and development progress of products is guaranteed.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
the system comprises a condenser 1, a compressor unit 2, a compressor unit 3, an evaporator 4, a refrigerator 5, axial flow fans I and 6, an electric valve 7, an electric heater 8 and an axial flow fan II.
Detailed Description
Referring to fig. 1, a temperature adjusting device for working environment of a lubricating oil pump comprises an environment box, a first axial flow fan 5, a second axial flow fan 8, an electric heater 7, a compressor unit 2, a condenser 1, an evaporator 3 and a refrigerator 4; one end of the second axial flow fan 8 is connected with the environment box, the other end of the second axial flow fan is connected with the electric heater 7, and the electric heater 7 is connected with the environment box to form a heating loop;
the heating system comprises a heating loop: the 25Kw finned electric heater 7 is used for directly heating the gas in the pipeline of the heating system, and the axial flow fan II 8 is used for sending the high-temperature gas in the pipeline into the environment box and sucking the high-temperature gas in the environment box, so that a circulating heating system is formed.
One end of the axial flow fan I5 is connected with the environment box, the other end of the axial flow fan I is connected with the refrigerator 4, and the refrigerator 4 is connected with the environment box to form a refrigeration loop; the evaporator 3 is connected with the refrigerator 4 to form a secondary refrigerant loop; the condenser 1 and the compressor unit 2 are connected in series and then connected to the evaporator 3 to form a refrigerating machine loop.
A refrigeration system comprising a refrigeration circuit, a refrigerant circuit, and a coolant circuit: the two 11Kw cascade compressors draw out refrigerant vapor in the evaporator 3 and compress it into a high-temperature and high-pressure state. The refrigerant releases heat after passing through the condenser 1 and the throttling element, becomes liquid at low temperature and low pressure, and enters the evaporator 3 to evaporate and absorb heat. The secondary refrigerant makes air and refrigerant indirectly exchange heat, and has the advantages of high refrigerating efficiency, good anti-frosting effect, long continuous operation time, settable keeping temperature, etc. and the features are all suitable for the design requirement of the environment box. The ventilating duct exchanges heat with the secondary refrigerant, and the low-temperature constant-temperature control in the environmental chamber is realized by controlling the air volume. The electric valve 6 is isolated from the cavity, and the damage of high-temperature gas in a heating experiment to the refrigeration equipment is prevented.
Furthermore, two electric valves 6 are arranged on the refrigerating circuit and the heating circuit.
The function is as follows: the automatic switching device is used for automatically switching the high-temperature and low-temperature working environment of the lubricating oil pump.
Further, the environment box is internally provided with heat-insulating cotton with the thickness of 100 mm.
The function is as follows: the temperature in the environmental chamber is isolated from the external environmental temperature, and the heat preservation effect is achieved.
Furthermore, the heat insulation cotton is fixed on the inner wall surface of the environment box through a fixing frame.
The function is as follows: the support is used for supporting the heat insulation cotton and preventing the heat insulation cotton from automatically sliding down due to gravity, thereby playing a role in fixing.
Further, the device also comprises an independent heat insulation box, wherein the axial flow fan I5, the axial flow fan II 8, the electric heater 7, the compressor unit 2, the condenser 1, the evaporator 3 and the refrigerator 4 are all arranged in the independent heat insulation box.
The function is as follows: the axial flow fan I5 is used for sending cold air generated by the compressor unit 2, the condenser 1, the evaporator 3 and the refrigerator 4 to the environment box and pumping air from the interior of the environment box to ensure the circulation of cold air; the axial flow fan II 8 is used for sending hot air generated by the electric heater 7 to the environment box and pumping air from the interior of the environment box to ensure that the hot air circulates; .
Further, the electric heater 7 adopts a 25kw fin type electric heater; the compressor unit adopts two groups of 11kw cascade compressors.
The function is as follows: the 25kw finned electric heater is used for heating air; two sets of 11kw cascade compressors were used to refrigerate the air.
Due to the influence of heat dissipation of the internal space of the environment box, the pipeline and the shell of the test piece, the heating and cooling time and the maximum cooling temperature index are correspondingly reduced. The power of the heating and cooling device is selected in consideration of the operating time of 3 hours. The capacity of the refrigerant and the secondary refrigerant can enable the air to reach-70 ℃, and a certain margin is left.
The refrigerant is a mixture of 404a and R23; 404a refrigerant is HFC type non-azeotropic environment-friendly refrigerant, obtains the mainstream low-temperature environment-friendly refrigerant which is approved and recommended by most countries in the world at present, and is widely applied to the adding in the initial installation and maintenance process of new refrigeration equipment. The R23 refrigerant is an environmentally friendly refrigerant that is widely used as an ultra-low temperature refrigerant and is approved and recommended by most countries in the world because it does not destroy the ozone layer at all, and is also one of the mainstream environmentally friendly refrigerants.
The utility model has been described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the specific implementation in the above-described manner, and it is within the scope of the utility model to apply the inventive concept and solution to other applications without substantial modification.
Claims (6)
1. The utility model provides a lubricating oil pump operational environment temperature regulation apparatus, includes the environment case, its characterized in that: the system also comprises a first axial flow fan (5), a second axial flow fan (8), an electric heater (7), a compressor unit (2), a condenser (1), an evaporator (3) and a refrigerator (4); one end of the second axial flow fan (8) is connected with the environment box, the other end of the second axial flow fan is connected with the electric heater (7), and the electric heater (7) is connected with the environment box to form a heating loop; one end of the axial flow fan I (5) is connected with the environment box, the other end of the axial flow fan I is connected with the refrigerator (4), and the refrigerator (4) is connected with the environment box to form a refrigeration loop; the evaporator (3) is connected with the refrigerator (4) to form a secondary refrigerant loop; the condenser (1) and the compressor unit (2) are connected in series and then connected to the evaporator (3) to form a refrigerating machine loop.
2. The lubricating oil pump working environment temperature adjusting device according to claim 1, characterized in that: and the refrigerating circuit and the heating circuit are both provided with two electric valves (6).
3. The lubricating oil pump working environment temperature adjusting device according to claim 1, characterized in that: the environment box inside be provided with 100mm thick heat preservation cotton.
4. The lubricating oil pump working environment temperature adjusting device according to claim 3, characterized in that: the heat insulation cotton is fixed on the inner wall surface of the environment box through the fixing frame.
5. The lubricating oil pump working environment temperature adjusting device according to claim 1, characterized in that: the air conditioner further comprises an independent heat insulation box, wherein the axial flow fan I (5), the axial flow fan II (8), the electric heater (7), the compressor unit (2), the condenser (1), the evaporator (3) and the refrigerator (4) are all arranged in the independent heat insulation box.
6. The lubricating oil pump working environment temperature adjusting device according to claim 1, characterized in that: the electric heater (7) adopts a 25kw finned electric heater; the compressor unit (2) adopts two groups of 11kw cascade compressors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122356003.7U CN215833812U (en) | 2021-09-27 | 2021-09-27 | Lubricating oil pump working environment temperature adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122356003.7U CN215833812U (en) | 2021-09-27 | 2021-09-27 | Lubricating oil pump working environment temperature adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215833812U true CN215833812U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122356003.7U Active CN215833812U (en) | 2021-09-27 | 2021-09-27 | Lubricating oil pump working environment temperature adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215833812U (en) |
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2021
- 2021-09-27 CN CN202122356003.7U patent/CN215833812U/en active Active
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