Annular radiator performance testing device

Abstract

The invention discloses an annular radiator performance testing device which mainly comprises a cold air supply system using a fan as an air source and capable of stably supplying large-flow normal-temperature air exceeding 30000 kg / h; the secondary cooling air supply system with compressed air as an air source can provide hot air with the temperature being 100 DEG C and the flow being not lower than 6000 kg / h, and the hot path air supply system with compressed air as an air source can stably provide hot air with the temperature being 600 DEG C and the flow being larger than 3000 kg / h. The performance testing device is designed according to the performance testing requirements of the annular radiator and existing conditions, the high-temperature and large-flow testing requirements of the annular radiator can be met, and the performance testing requirements of other air radiators under the coverage of device capacity conditions can also be met.

Description

Technical Field

[0001] The invention belongs to the technical field of simulation testing, relates to a radiator parameter simulation test, and specifically is a ring radiator performance testing device. Background Art

[0002] The annular radiator (hereinafter referred to as the product) is an accessory of the aircraft environmental control and thermal management system. It is installed in the annular radiator equipment compartment and uses a large flow of low-temperature air in the air intake to cool the hot air drawn from the engine.

[0003] When the product is undergoing performance testing, the test device needs to provide three-way air (one cold way, two cold ways and one hot way) to the product stably. The working flow of the cold way is large (25,000kg / h), and the working temperature of the hot way is high (580°C). In the early stage of product development, there was no test device in China to complete the performance test of the product. The product performance could only be tested after installation, which seriously affected the product development progress.

[0004] Therefore, it is necessary to provide a set of scientific, effective and practical testing equipment based on product performance parameters and existing conditions to simulate product performance tests accurately, conveniently, safely and quickly. Summary of the invention

[0005] The present invention aims to provide a ring-shaped radiator performance testing device, which can accurately, conveniently, safely and quickly perform simulation testing on the performance of the ring-shaped radiator.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A ring radiator performance testing device, comprising:

[0008] a cold air supply system, the cold air supply system comprising a fan for air supply, the fan being connected to a cold inlet of the annular radiator, and a second flow meter, a fifth pressure sensor and a fifth temperature sensor being sequentially arranged between the fan and the cold inlet of the annular radiator;

[0009] A secondary cooling air supply system, the secondary cooling air supply system comprises a first compressed air source for air supply, a first flow meter, a first electric regulating valve, a first pressure sensor, a first temperature sensor, a first manual valve, a first heater, a second pressure sensor, a second temperature sensor, a third electric regulating valve, a third pressure sensor and a third temperature sensor are sequentially arranged between the first compressed air source and the secondary cooling inlet of the annular radiator;

[0010] A heat path air supply system, the heat path air supply system comprising a second compressed air source for air supply, a third flow meter, a fifth electric regulating valve, a seventh pressure sensor, a seventh temperature sensor, a third manual valve, a third heater, an eighth pressure sensor, an eighth temperature sensor, a seventh electric regulating valve, a ninth pressure sensor and a ninth temperature sensor are sequentially arranged between the second compressed air source and the heat path inlet of the annular radiator;

[0011] The silencing chamber is connected to the first cold outlet, the second cold outlet and the hot outlet of the annular radiator respectively, wherein:

[0012] A sixth temperature sensor and a sixth pressure sensor are also arranged in sequence between the anechoic chamber and a cold outlet of the annular radiator;

[0013] A fourth temperature sensor and a fourth pressure sensor are arranged in sequence between the anechoic chamber and the secondary cooling outlet of the annular radiator;

[0014] A tenth pressure sensor and a tenth temperature sensor are arranged in sequence between the anechoic chamber and the heat path outlet of the annular radiator.

[0015] Furthermore, the annular radiator performance test device further includes a first bypass pipeline and a second bypass pipeline arranged in the secondary cooling air supply system, wherein:

[0016] One end of the first bypass pipeline is connected to the rear end of the first flow meter, and the other end is connected between the first electric regulating valve and the first pressure sensor, and a second electric regulating valve is arranged on the first bypass pipeline;

[0017] One end of the second bypass line is connected between the first temperature sensor and the first manual valve, and the other end is connected between the first heater and the second pressure sensor. The second bypass line is provided with a second manual valve and a second heater.

[0018] Further, the nominal diameter of the second electric regulating valve in the first bypass line is smaller than the nominal diameter of the first electric regulating valve.

[0019] Furthermore, the annular radiator performance test device further includes a third bypass pipeline and a fourth bypass pipeline arranged in the heat path air supply system, wherein:

[0020] One end of the third bypass pipeline is connected to the rear end of the third flow meter, and the other end is connected between the fifth electric regulating valve and the seventh pressure sensor. The third bypass pipeline is provided with a sixth electric regulating valve;

[0021] One end of the fourth bypass line is connected between the seventh temperature sensor and the third manual valve, and the other end is connected between the third heater and the eighth pressure sensor. A fourth manual valve and a fourth heater are provided on the fourth bypass line.

[0022] Further, the nominal diameter of the sixth electric regulating valve in the third bypass line is smaller than the nominal diameter of the fifth electric regulating valve.

[0023] As a solution:

[0024] The flow rate of normal temperature air in the cold air supply system is greater than 30000 kg / h;

[0025] The hot air temperature in the secondary cooling air supply system is 100°C and the flow rate is greater than or equal to 6000kg / h;

[0026] The hot air temperature in the hot path air supply system is 600° C. and the flow rate is greater than 3000 kg / h.

[0027] Compared with the prior art, the annular radiator performance testing device of the present invention has the following characteristics:

[0028] 1. This device is designed according to the performance test requirements of the annular radiator. It can simulate the use conditions of the annular radiator and meet the high temperature and large flow test requirements of the annular radiator. At the same time, it can also meet the performance test of other air products under the device capacity conditions;

[0029] 2. After the product test, the three-way gas (air) finally flows into the anechoic chamber for silencing and noise reduction, and the testing process is environmentally friendly; 3. Compared with the use of fans as air sources, this device uses compressed air sources as the second cooling and hot air sources based on existing conditions, saving the manufacturing cost of the device;

[0030] 4. The flow of the secondary cooling circuit and the hot circuit is roughly and finely adjusted through two electric regulating valves with different pipe diameters (nominal diameters), and the flow regulation accuracy is high;

[0031] 5. Different numbers of heaters are selected for the second cooling circuit and the hot circuit according to the flow rate (the first heater and the second heater are used alone, or both are used at the same time), which increases the air heating speed and prevents the heater from being damaged due to too small flow during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of a ring radiator performance test device;

[0033] In the figure: 1-first compressed air source, 2-first flow meter, 3-first electric regulating valve, 4-second electric regulating valve, 5-first pressure sensor, 6-first temperature sensor, 7-first hand valve, 8-first heater, 9-second hand valve, 10-second heater, 11-second pressure sensor, 12-second temperature sensor, 13-third electric regulating valve, 14-third pressure sensor, 15-third temperature sensor, 16-fourth pressure sensor, 17-fourth temperature sensor, 18-fourth electric regulating valve, 19-muffler chamber, 20-fan, 21-second flow meter, 22-fifth pressure sensor, 23- Fifth temperature sensor, 24-sixth pressure sensor, 25-sixth temperature sensor, 26-second compressed air source, 27-third flow meter, 28-fifth electric regulating valve, 29-sixth electric regulating valve, 30-seventh pressure sensor, 31-seventh temperature sensor, 32-third hand valve, 33-third heater, 34-fourth hand valve, 35-fourth heater, 36-eighth pressure sensor, 37-eighth temperature sensor, 38-seventh electric regulating valve, 39-ninth temperature sensor, 40-ninth pressure sensor, 41-tenth temperature sensor, 42-tenth pressure sensor, 43-eighth electric regulating valve. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to the common technical knowledge and customary means in the field are included in the scope of the present invention.

[0035] like Figure 1 As shown, a ring radiator performance test device designed by the present invention includes a first cold air supply system, a second cold air supply system, a hot air supply system and a muffler chamber 19, wherein:

[0036] A cold air supply system is supplied with air by a fan 20. After the air enters the annular radiator through a cold inlet of the annular radiator, it enters the silencing chamber 19 through a cold outlet of the annular radiator. A second flow meter 21, a fifth pressure sensor 22, and a fifth temperature sensor 23 are sequentially arranged between the fan 20 and the cold inlet of the annular radiator.

[0037] The secondary cooling air supply system is supplied with air by the first compressed air source 1. After the air enters the annular radiator through the secondary cooling inlet of the annular radiator, it enters the muffler chamber 19 through the secondary cooling outlet of the annular radiator. A first flow meter 2, a first electric regulating valve 3, a first pressure sensor 5, a first temperature sensor 6, a first hand valve 7, a first heater 8, a second pressure sensor 11, a second temperature sensor 12, a third electric regulating valve 13, a third pressure sensor 14, and a third temperature sensor 15 are sequentially arranged between the first compressed air source 1 and the secondary cooling inlet of the annular radiator.

[0038] The secondary cooling air supply system is also provided with a first bypass pipeline and a second bypass pipeline.

[0039] One end of the first bypass pipeline is connected to the rear end of the first flowmeter 2, and the other end is connected between the first electric control valve 3 and the first pressure sensor 5. A second electric control valve 4 is arranged on the first bypass pipeline. The nominal diameter of the second electric control valve 4 in the first bypass pipeline is smaller than the nominal diameter of the first electric control valve 3.

[0040] One end of the second bypass line is connected between the first temperature sensor 6 and the first manual valve 7 , and the other end is connected between the first heater 8 and the second pressure sensor 11 ; a second manual valve 9 and a second heater 10 are provided on the second bypass line.

[0041] The heat path air supply system is supplied with air by the second compressed air source 26. After the air enters the annular radiator through the heat path inlet of the annular radiator, it enters the muffler chamber 19 through the heat path outlet of the annular radiator. A third flow meter 27, a fifth electric regulating valve 28, a seventh pressure sensor 30, a seventh temperature sensor 31, a third manual valve 32, a third heater 33, an eighth pressure sensor 36, an eighth temperature sensor 37, a seventh electric regulating valve 38, a ninth pressure sensor 40, and a ninth temperature sensor 39 are sequentially arranged between the second compressed air source 26 and the heat path inlet of the annular radiator.

[0042] A third bypass pipeline and a fourth bypass pipeline are also provided in the hot path air supply system.

[0043] One end of the third bypass pipeline is connected to the rear end of the third flowmeter 27, and the other end is connected between the fifth electric control valve 28 and the seventh pressure sensor 30. A sixth electric control valve 29 is arranged on the third bypass pipeline. The nominal diameter of the sixth electric control valve 29 in the third bypass pipeline is smaller than the nominal diameter of the fifth electric control valve 28.

[0044] One end of the second bypass line is connected between the seventh temperature sensor 31 and the third manual valve 32 , and the other end is connected between the third heater 33 and the eighth pressure sensor 36 . The fourth manual valve 34 and the fourth heater 35 are provided on the second bypass line.

[0045] A sixth pressure sensor 24 and a sixth temperature sensor 25 are arranged in sequence between a cold outlet of the annular radiator and the muffler chamber 19 .

[0046] A tenth temperature sensor 41 and a tenth pressure sensor 42 are arranged in sequence between the heat path outlet of the annular radiator and the muffler chamber 19 .

[0047] A fourth pressure sensor 16 and a fourth temperature sensor 17 are arranged in sequence between the secondary cooling outlet of the annular radiator and the muffler chamber 19 .

[0048] Take the performance test of a ring radiator as an example, using Figure 1 The process of testing the annular radiator performance test device shown is as follows:

[0049] 1. Ring radiator installation:

[0050] according to Figure 1 As shown, the first cold circuit (one cold inlet and one cold outlet), the second cold circuit (two cold inlets and two cold outlets), and the hot circuit (hot circuit inlet and hot circuit outlet) of the tested annular radiator are respectively connected to the first cold air supply system, the second cold air supply system, and the hot circuit air supply system of the testing device.

[0051] 2. Test parameter setting:

[0052] Open the test parameter setting interface and set the parameters as follows:

[0053] First cold flow: 20000±500kg / h;

[0054] Secondary cooling flow rate: 4500±150kg / h, secondary cooling inlet temperature 90±2℃, secondary cooling inlet pressure 155±5kPa;

[0055] Hot circuit flow rate: 1300±65kg / h, hot circuit inlet temperature 580±5℃, hot circuit inlet pressure 760±20kPa;

[0056] 3. Start of the test:

[0057] Click the Start Test button to start the test. The operation process of each system in the device is as follows:

[0058] Start of the first cooling circuit: The system starts the fan 20 and slowly increases the speed of the fan 20 until the flow rate of the first cooling circuit is stabilized within the range of 20000±500kg / h;

[0059] Start of the second cooling circuit: the system first adjusts the flow rate through the first electric regulating valve 3 on the second cooling circuit large pipeline (the main pipeline where the first electric regulating valve 3 is located). When the flow rate is close to the target value of 4500kg / h, it is fine-tuned through the second electric regulating valve 4 (first bypass pipeline). After the flow rate is relatively stable, the heaters (the first heater 8 and the second heater 10) are started to heat the air. During the heating process, the system conducts actual measurement, monitoring and adjustment of the flow rate of the second cooling circuit. After the flow rate and temperature reach the target range and stabilize, the system finally performs joint adjustment through the first electric regulating valve 3, the second electric regulating valve 4, and the fourth electric regulating valve 18 to stabilize the inlet pressure of the annular radiator within the range of 760±20kPa;

[0060] The adjustment method of the hot circuit is similar to that of the secondary cooling circuit, and is adjusted according to the flow rate, inlet temperature and inlet pressure required by the test.

[0061] Data recording: When all test parameters meet the requirements and stabilize (not less than 10 minutes), the system automatically collects a set of data every 1 minute. The test is completed after collecting 3 sets of data.

[0062] 4. Cooling down and shutdown:

[0063] After the test is completed, the system turns off each heater and maintains the air supply state to cool the system. When the air temperature in the hot circuit drops to 60°C, the air supply is stopped.

[0064] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A ring radiator performance test device, characterized in that: include: A cold air supply system, the cold air supply system comprising a fan (20) for supplying air, the fan (20) being connected to a cold inlet of the annular radiator, and a second flow meter (21), a fifth pressure sensor (22) and a fifth temperature sensor (23) being arranged in sequence between the fan (20) and the cold inlet of the annular radiator; A secondary cooling air supply system, the secondary cooling air supply system comprising a first compressed air source (1) for air supply, a first flow meter (2), a first electric regulating valve (3), a first pressure sensor (5), a first temperature sensor (6), a first manual valve (7), a first heater (8), a second pressure sensor (11), a second temperature sensor (12), a third electric regulating valve (13), a third pressure sensor (14) and a third temperature sensor (15) being arranged in sequence between the first compressed air source (1) and the secondary cooling inlet of the annular radiator; A heat path air supply system, the heat path air supply system comprising a second compressed air source (26) for air supply, a third flow meter (27), a fifth electric regulating valve (28), a seventh pressure sensor (30), a seventh temperature sensor (31), a third manual valve (32), a third heater (33), an eighth pressure sensor (36), an eighth temperature sensor (37), a seventh electric regulating valve (38), a ninth pressure sensor (40) and a ninth temperature sensor (39) being sequentially arranged between the second compressed air source (26) and the heat path inlet of the annular radiator; A muffler chamber (19), wherein the muffler chamber (19) is respectively connected to a first cold outlet, a second cold outlet and a hot outlet of the annular radiator, wherein: A sixth temperature sensor (25) and a sixth pressure sensor (24) are arranged in sequence between the anechoic chamber (19) and a cold outlet of the annular radiator; A fourth temperature sensor (17) and a fourth pressure sensor (16) are arranged in sequence between the silencing chamber (19) and the secondary cooling outlet of the annular radiator; A tenth pressure sensor (42) and a tenth temperature sensor (41) are arranged in sequence between the muffler chamber (19) and the heat path outlet of the annular radiator.

2. The annular radiator performance testing device according to claim 1, characterized in that: It also includes a first bypass pipeline and a second bypass pipeline arranged in the secondary cooling air supply system, wherein: One end of the first bypass pipeline is connected to the rear end of the first flow meter (2), and the other end is connected between the first electric regulating valve (3) and the first pressure sensor (5), and a second electric regulating valve (4) is provided on the first bypass pipeline; One end of the second bypass pipeline is connected between the first temperature sensor (6) and the first manual valve (7), and the other end is connected between the first heater (8) and the second pressure sensor (11). A second manual valve (9) and a second heater (10) are provided on the second bypass pipeline.

3. The annular radiator performance testing device according to claim 2, characterized in that: The nominal diameter of the second electric regulating valve (4) in the first bypass pipeline is smaller than the nominal diameter of the first electric regulating valve (3).

4. The annular radiator performance testing device according to claim 1, characterized in that: It also includes a third bypass pipeline and a fourth bypass pipeline arranged in the hot path air supply system, wherein: One end of the third bypass pipeline is connected to the rear end of the third flow meter (27), and the other end is connected between the fifth electric regulating valve (28) and the seventh pressure sensor (30). A sixth electric regulating valve (29) is arranged on the third bypass pipeline. One end of the fourth bypass pipeline is connected between the seventh temperature sensor (31) and the third manual valve (32), and the other end is connected between the third heater (33) and the eighth pressure sensor (36). A fourth manual valve (34) and a fourth heater (35) are provided on the fourth bypass pipeline.

5. The annular radiator performance testing device according to claim 4, characterized in that: The nominal diameter of the sixth electric regulating valve (29) in the third bypass line is smaller than the nominal diameter of the fifth electric regulating valve (28).

6. The annular radiator performance testing device according to claim 1, characterized in that: The flow rate of normal temperature air in the cold air supply system is greater than 30000 kg / h; The hot air temperature in the secondary cooling air supply system is 100°C and the flow rate is greater than or equal to 6000kg / h; The hot air temperature in the hot path air supply system is 600° C. and the flow rate is greater than 3000 kg / h.

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