Testing device of cooling and lubricating system

Abstract

The utility model belongs to the field of fan performance detection, and discloses a testing device of a cooling and lubricating system. Comprising a cooling test system, a lubrication test system, a heat exchanger and a switching device. The cooling test system forms a cooling loop, and the cooling loop comprises a cooling main line, and a first heat exchange pipeline and a first connecting pipeline which are connected with the cooling main line and are arranged in parallel; the lubrication test system forms a lubrication loop, and the lubrication loop comprises a lubrication trunk, and a second heat exchange pipeline and a second connecting pipeline which are connected with the lubrication trunk and are arranged in parallel; the heat exchanger is provided with two heat exchange channel sections capable of exchanging heat with each other, one heat exchange channel section is located on the first heat exchange pipeline, and the other heat exchange channel section is located on the second heat exchange pipeline. The switching device switches the first heat exchange pipeline or the first connecting pipeline to be communicated to the cooling main pipeline and switches the second heat exchange pipeline or the second connecting pipeline to be communicated to the lubricating main pipeline. And the performance of the cooling device and the temperature control valve can be tested conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fan performance detection, in particular to a testing device for a cooling and lubrication system. Background Art

[0002] During the operation of wind power equipment, corresponding cooling systems and lubrication systems must be equipped to ensure the normal operation of the equipment. Before installing the cooling system and lubrication system on the wind power equipment, the design of the cooling system and lubrication system needs to be tested. The existing cooling system and lubrication system are directly put into operation for testing after design, resulting in high testing and replacement costs.

[0003] At present, separate test systems are often designed for cooling systems and lubrication systems to perform performance tests. However, separate tests cannot reasonably simulate the actual heat exchange environment, and cannot perform coupled heat exchange tests between water cooling and lubrication under multiple working conditions, resulting in unreasonable redundant design of the water cooling system. In summary, it is difficult to accurately test the cooling and lubrication systems with existing technologies. Utility Model Content

[0004] The main purpose of the utility model is to provide a testing device for a cooling and lubricating system, aiming to solve the problem that it is difficult to accurately test the cooling and lubricating system in the prior art.

[0005] To achieve the above object, the utility model provides a testing device for a cooling and lubrication system, comprising:

[0006] A cooling test system is formed with a cooling circuit, the cooling circuit includes a cooling trunk line, and a first heat exchange pipeline and a first connecting pipeline both connected to the cooling trunk line and arranged in parallel, the cooling trunk line is provided with a first heating device and a heat dissipation device, the heat dissipation device is used to correspond to the external cooling device;

[0007] A lubrication test system is formed with a lubrication circuit, the lubrication circuit includes a lubrication trunk line, and a second heat exchange pipeline and a second connecting pipeline both connected to the lubrication trunk line and arranged in parallel, the lubrication trunk line is provided with a second heating device, and the lubrication trunk line is used to set an external temperature control valve;

[0008] A heat exchanger is formed with two heat exchange channel sections capable of heat exchange with each other, wherein one of the heat exchange channel sections is located on the first heat exchange pipeline and the other of the heat exchange channel sections is located on the second heat exchange pipeline; and

[0009] A switching device switches the first heat exchange pipeline or the first connecting pipeline to be connected to the cooling trunk line, and the second heat exchange pipeline or the second connecting pipeline to be connected to the lubrication trunk line.

[0010] Optionally, the first heat exchange pipeline, the first connecting pipeline, the second heat exchange pipeline and the second connecting pipeline are all provided with on-off valves, and the switching device includes the on-off valves.

[0011] Optionally, two on-off valves are arranged on the first heat exchange pipeline, and the two on-off valves are respectively located on both sides of the heat exchanger; and / or,

[0012] The second heat exchange pipeline is provided with two on-off valves, and the two on-off valves are respectively located on both sides of the heat exchanger.

[0013] Optionally, a pressure transmitter is provided on the first heat exchange pipeline and / or the second heat exchange pipeline.

[0014] Optionally, a plurality of heat dissipation devices are provided.

[0015] Optionally, a water pump is also provided on the cooling trunk circuit to drive the flow of liquid in the cooling trunk circuit.

[0016] Optionally, the cooling main circuit is further provided with a regulating valve, which is arranged on the outlet side of the water pump to adjust the liquid flow in the cooling circuit.

[0017] Optionally, the lubrication main circuit is further provided with a gear pump, and the gear pump is used to drive the flow of liquid in the lubrication circuit.

[0018] Optionally, the heat exchanger comprises a plate heat exchanger.

[0019] Optionally, at least one of a temperature sensor, a pressure transmitter and a flow meter is provided on the cooling trunk line and / or the lubrication trunk line.

[0020] The utility model provides a testing device for a cooling and lubrication system, wherein a cooling circuit is formed in the cooling test system, and when a cooling performance test is performed, the switching device switches the first connecting pipeline to connect to the cooling trunk line, and the first heating device is used to simulate the heating element in the fan to heat the liquid in the cooling circuit, and then the liquid flows to the heat dissipation device for heat dissipation, and then is cooled by an external cooling device, so as to test the cooling performance of the cooling device in the fan; a lubrication circuit is formed in the lubrication test system, and when a lubrication performance test is performed, the switching device switches the second connecting pipeline to connect to the lubrication trunk line, and the second heating device is used to simulate the heating condition of the lubricating liquid during the transportation process, and then the liquid is connected to an external temperature control valve for temperature control test, so as to test the temperature control performance of the temperature control valve in the fan; and when a coupling test is required, the first heat exchange pipeline and the second heat exchange pipeline are controlled to be connected, and the lubricating liquid in the lubrication circuit will exchange heat with the liquid in the cooling circuit in the heat exchanger, simulating the heat exchange condition between the lubrication circuit and the cooling circuit under actual working conditions, so as to facilitate accurate testing of the performance of the cooling device and the temperature control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a testing device for a cooling and lubrication system provided by an embodiment of the utility model.

[0022] Description of Figure Numbers:

[0023] 100. Test device for cooling and lubrication system; 1. Cooling test system; 11. Cooling main circuit; 111. First heating device; 112. Heat dissipation device; 113. Water pump; 114. Regulating valve; 12. First heat exchange pipeline; 13. First connecting pipeline; 2. Lubrication test system; 21. Lubrication main circuit; 211. Second heating device; 212. Gear pump; 22. Second heat exchange pipeline; 23. Second connecting pipeline; 3. Heat exchanger; 41. On-off valve; 51. Pressure transmitter.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] During the operation of wind power equipment, corresponding cooling systems and lubrication systems must be equipped to ensure the normal operation of the equipment. Before installing the cooling system and lubrication system on the wind power equipment, the design of the cooling system and lubrication system needs to be tested. The existing cooling system and lubrication system are directly put into operation for testing after design, resulting in high testing and replacement costs.

[0029] At present, separate test systems are often designed for cooling systems and lubrication systems to perform performance tests. However, separate tests cannot reasonably simulate the actual heat exchange environment, and cannot perform coupled heat exchange tests between water cooling and lubrication under multiple working conditions, resulting in unreasonable redundant design of the water cooling system. In summary, it is difficult to accurately test the cooling and lubrication systems with existing technologies.

[0030] See also Figure 1The utility model provides a test device 100 for a cooling and lubrication system, comprising a cooling test system 1, a lubrication test system 2, a heat exchanger 3 and a switching device; the cooling test system 1 forms a cooling circuit, the cooling circuit comprises a cooling trunk 11, and a first heat exchange pipeline 12 and a first connecting pipeline 13 both connected to the cooling trunk 11 and arranged in parallel, the cooling trunk 11 is provided with a first heating device 111 and a heat dissipation device 112, the heat dissipation device 112 is used to correspond to the external cooling device; the lubrication test system 2 forms a lubrication circuit, the lubrication circuit comprises a lubrication trunk 21, and a first heat exchange pipeline 12 and a first connecting pipeline 13 both connected to the lubrication trunk 21 and arranged in parallel A second heat exchange pipeline 22 and a second connecting pipeline 23 are connected and arranged in parallel, a second heating device 211 is arranged on the lubrication trunk 21, and an external temperature control valve is arranged on the lubrication trunk 21; the heat exchanger 3 is formed with two heat exchange channel sections that can exchange heat with each other, one of the heat exchange channel sections is on the first heat exchange pipeline 12, and the other heat exchange channel section is on the second heat exchange pipeline 22; the switching device switches the first heat exchange pipeline 12 or the first connecting pipeline 13 to be connected to the cooling trunk 11, and the second heat exchange pipeline 22 or the second connecting pipeline 23 is connected to the lubrication trunk 21.

[0031] In the test device 100 for the cooling and lubrication system provided by the utility model, a cooling circuit is formed in the cooling test system 1. When performing a cooling performance test, the switching device switches the first connecting pipe 13 to connect to the cooling trunk line 11, and the first heating device 111 simulates the heating element in the fan to heat the liquid in the cooling circuit. Then the liquid flows to the heat dissipation device 112 for heat dissipation, and is then cooled by an external cooling device, so as to test the cooling performance of the cooling device in the fan; a lubrication circuit is formed in the lubrication test system 2. When performing a lubrication performance test, the switching device The second connecting pipeline 23 is switched to be connected to the lubrication trunk line 21, and the heating condition of the lubricating fluid during the transportation process is simulated by the second heating device 211, and then connected to the external temperature control valve for temperature control test, so as to test the temperature control performance of the temperature control valve in the fan; and when a coupling test is required, the first heat exchange pipeline 12 and the second heat exchange pipeline 22 are controlled to be connected, and the lubricating fluid in the lubrication circuit will exchange heat with the liquid in the cooling circuit in the heat exchanger, simulating the heat exchange between the lubrication circuit and the cooling circuit under actual working conditions, thereby facilitating accurate testing of the performance of the cooling device and the temperature control valve.

[0032] It should be noted that the switching device is used to switch the connectivity between the first heat exchange pipeline 12 and the first connecting pipeline 13, and between the second heat exchange pipeline 22 and the second connecting pipeline 23. The switching device has multiple implementations. For example, a three-way valve can be used to respectively realize the on-off of the first heat exchange pipeline 12 and the first connecting pipeline 13, and the on-off of the second heat exchange pipeline 22 and the second connecting pipeline 23.

[0033] Specifically, in the present application, the first heat exchange pipeline 12, the first connecting pipeline 13, the second heat exchange pipeline 22, and the second connecting pipeline 23 are all provided with an on-off valve 41, and the switching device includes the on-off valve 41. In this embodiment, the on-off valve 41 realizes the on-off of a single pipeline, the structure is simple and reliable, and the separate switching of different pipelines can be realized, the control is simpler, and the flow and pressure control in the pipeline can be realized.

[0034] When testing the cooling performance and lubrication performance, the on-off valve 41 on the first heat exchange pipeline 12 is controlled to be closed, and the on-off valve 41 on the first connecting pipeline 13 is controlled to be opened. At the same time, the on-off valve 41 on the second heat exchange pipeline 22 is controlled to be closed, and the on-off valve 41 on the second connecting pipeline 23 is controlled to be opened, so that the cooling circuit and the lubrication circuit are tested for cooling and lubrication performance separately; and when a coupling test is required, the on-off valve 41 on the first heat exchange pipeline 12 and the second heat exchange pipeline 22 is controlled to be opened, and the on-off valve 41 on the first connecting pipeline 13 and the second connecting pipeline 23 is controlled to be closed, so that the liquid in the cooling circuit and the lubrication circuit generates heat exchange, simulating the actual thermal conditions in the fan, and facilitating cooling and lubrication performance testing.

[0035] Furthermore, two on-off valves 41 are provided on the first heat exchange pipeline 12, and the two on-off valves 41 are respectively located on both sides of the heat exchanger 3. In this embodiment, the two on-off valves can better cut off the liquid flow between the heat exchanger 3 and the cooling circuit to prevent the liquid in the cooling trunk line 11 from flowing into the heat exchanger 3 from one end of the heat exchanger 3, causing problems in the subsequent coupling test.

[0036] Similarly, two on-off valves 41 are provided on the second heat exchange pipeline 22, and the two on-off valves 41 are respectively located on both sides of the heat exchanger 3. In this embodiment, the two on-off valves 41 are used to achieve complete switching between the heat exchanger 3 and the lubrication circuit, thereby avoiding problems in subsequent coupling tests.

[0037] It should be noted that, in the present embodiment, the two relevant technical features of the on-off valve 41 on the first heat exchange pipeline 12 and the second heat exchange pipeline 22 may be selected to exist alone or simultaneously, and no specific limitation is made here.

[0038] In addition, it should be noted that there are multiple implementations of the on-off valve 41, as long as it can achieve the on-off of the liquid flow path. In the present application, the on-off valve 41 includes a ball valve.

[0039] On the other hand, a pressure transmitter 51 is provided on the first heat exchange pipeline 12 and / or the second heat exchange pipeline 22. In this embodiment, the pressure during heat exchange between the first heat exchange pipeline 12 and the second heat exchange pipeline 22 can be monitored by the pressure transmitter 51, and the heat exchange efficiency can be judged to facilitate adjustment, thereby ensuring that the simulation of the actual situation can be achieved.

[0040] It should be noted that the first heat exchange pipeline 12 and the second heat exchange pipeline 22 can be provided with the pressure transmitter 51 either one or both. In the present embodiment, the first heat exchange pipeline 12 and the second heat exchange pipeline 22 can be provided with the pressure transmitter at the same time to facilitate more accurate judgment.

[0041] Furthermore, two pressure transmitters 51 are provided on the first heat exchange pipeline 12, and the two pressure transmitters 51 are respectively located on both sides of the heat exchanger 3. In this embodiment, the two pressure transmitters 51 are used to more accurately detect the pressure value of the first heat exchange pipeline 12.

[0042] Similarly, two pressure transmitters 51 are provided on the second heat exchange pipeline 22, and the two pressure transmitters 51 are respectively located on both sides of the heat exchanger 3. In this embodiment, the pressure value on the second heat exchange pipeline 22 is detected more accurately.

[0043] On the other hand, the heat dissipation device 112 is provided in plurality, so as to simulate a real heat dissipation system.

[0044] It should be noted that the heat dissipation device 112 has various implementations, such as heat dissipation fins, etc. In this embodiment, the heat dissipation device 112 includes a plate-type radiator.

[0045] On the other hand, a water pump 113 is also provided on the cooling trunk circuit 11 to drive the flow of liquid in the cooling trunk circuit 11. In this embodiment, the water pump 113 facilitates the flow of liquid in the cooling circuit to achieve heat exchange of the coolant.

[0046] Furthermore, a regulating valve 114 is provided on the cooling trunk circuit 11, which is provided on the outlet side of the water pump 113 to adjust the liquid flow in the cooling circuit. In this embodiment, a regulating valve 114 is provided on the outlet side of the water pump 113 to adjust the liquid flow in the cooling circuit, so as to simulate the liquid flow in cooling circuits of different designs.

[0047] It should be noted that there are multiple implementations of the regulating valve 114 as long as it can regulate the flow in the flow path. In the present application, the regulating valve 114 is a ball valve.

[0048] Similarly, the lubrication trunk line 21 is further provided with a gear pump 212, and the gear pump 212 is used to drive the liquid in the lubrication circuit to flow. In this embodiment, the gear pump drives the liquid in the lubrication circuit to flow.

[0049] On the other hand, the heat exchanger 3 comprises a plate heat exchanger to facilitate heat exchange between the cooling circuit and the lubrication circuit.

[0050] On the other hand, at least one of a temperature sensor, a pressure transmitter, and a flow meter is disposed on the cooling trunk line 11. In this embodiment, the liquid state in the cooling trunk line 11 is monitored by the temperature sensor, the pressure transmitter, or the flow meter.

[0051] It should be noted that there are multiple temperature sensors, two of which are located on both sides of the heat dissipation device, and one is located on the outlet side of the water pump. Similarly, there are two pressure transmitters, two of which are located on both sides of the heat dissipation device.

[0052] Likewise, at least one of a temperature sensor, a pressure transmitter, and a flow meter is disposed on the lubrication trunk line 21 to detect the state of the liquid in the lubrication trunk line 21 .

[0053] It should be noted that the two related technical features of the cooling main circuit 11 and the lubrication main circuit 21 may exist alone or simultaneously.

[0054] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A testing device for a cooling and lubrication system, characterized in that: include: A cooling test system is formed with a cooling circuit, the cooling circuit includes a cooling trunk line, and a first heat exchange pipeline and a first connecting pipeline both connected to the cooling trunk line and arranged in parallel, the cooling trunk line is provided with a first heating device and a heat dissipation device, the heat dissipation device is used to correspond to the external cooling device; A lubrication test system is formed with a lubrication circuit, the lubrication circuit includes a lubrication trunk line, and a second heat exchange pipeline and a second connecting pipeline both connected to the lubrication trunk line and arranged in parallel, the lubrication trunk line is provided with a second heating device, and the lubrication trunk line is used to set an external temperature control valve; A heat exchanger is formed with two heat exchange channel sections capable of heat exchange with each other, wherein one of the heat exchange channel sections is located on the first heat exchange pipeline and the other of the heat exchange channel sections is located on the second heat exchange pipeline; and A switching device switches the first heat exchange pipeline or the first connecting pipeline to be connected to the cooling trunk line, and the second heat exchange pipeline or the second connecting pipeline to be connected to the lubrication trunk line.

2. The testing device for the cooling and lubrication system according to claim 1, characterized in that: The first heat exchange pipeline, the first connecting pipeline, the second heat exchange pipeline and the second connecting pipeline are all provided with on-off valves, and the switching device includes the on-off valves.

3. The cooling and lubrication system testing device according to claim 2, characterized in that: Two on-off valves are arranged on the first heat exchange pipeline, and the two on-off valves are respectively located on both sides of the heat exchanger; and / or, The second heat exchange pipeline is provided with two on-off valves, and the two on-off valves are respectively located on both sides of the heat exchanger.

4. The testing device for the cooling and lubrication system according to claim 1, characterized in that: The first heat exchange pipeline and / or the second heat exchange pipeline is provided with a pressure transmitter.

5. The testing device for the cooling and lubrication system according to claim 1, characterized in that: A plurality of heat dissipation devices are provided.

6. The testing device for the cooling and lubrication system according to claim 1, characterized in that: The cooling trunk line is also provided with a water pump for driving the liquid in the cooling trunk line to flow.

7. The testing device for the cooling and lubrication system according to claim 6, characterized in that: The cooling trunk line is also provided with a regulating valve, which is arranged on the outlet side of the water pump and is used to regulate the liquid flow in the cooling circuit.

8. The testing device for the cooling and lubrication system according to claim 1, characterized in that: The lubrication trunk line is also provided with a gear pump, and the gear pump is used to drive the flow of liquid in the lubrication circuit.

9. The testing device for the cooling and lubrication system according to claim 1, characterized in that: The heat exchanger comprises a plate heat exchanger.

10. The testing device for the cooling and lubrication system according to claim 1, characterized in that: At least one of a temperature sensor, a pressure transmitter and a flow meter is arranged on the cooling trunk line and / or the lubrication trunk line.

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