A test method and system for a converter valve waste heat utilization device

Abstract

This invention discloses a testing method and system for a converter valve waste heat utilization device, relating to the field of converter valve waste heat utilization control technology. It employs boundary data from various heat sources to perform a heating decoupling test on the converter valve waste heat utilization device, obtaining performance data for the heating subsystem. It also employs boundary data from various heat sources to perform a cooling decoupling test on the device, obtaining performance data for the cooling subsystem. Based on the boundary data of the heat sources corresponding to a preset rated load, it performs combined heating and cooling tests and disturbance robustness tests on the device, obtaining coupled operating condition performance data and disturbance robustness test data. Based on the performance data of the heating subsystem, cooling subsystem, coupled operating condition, and disturbance robustness test data, the performance of the converter valve waste heat utilization device is evaluated, yielding the test results. This invention solves the technical problem that existing tests, which are mostly individual heat exchange performance tests detached from the valve cooling system, have limited accuracy.

Description

Technical Field

[0001] This invention relates to the field of waste heat utilization control technology for converter valves, and in particular to a testing method and system for a waste heat utilization device for converter valves. Background Technology

[0002] With the continuous construction of ultra-high voltage direct current (UHVDC) transmission projects in my country, the scale of cross-regional power transmission is constantly expanding. As the core equipment for AC-DC power conversion, the converter valve relies on a water-cooling circulation system to remove the heat generated during operation. Traditional heat dissipation methods directly discharge the low-temperature waste heat carried by the cooling medium into the atmosphere through cooling towers, resulting in low thermal energy utilization. Simultaneously, the long-term operation of equipment such as cooling towers and circulating water pumps consumes a considerable amount of station electricity. Under the development requirements of energy conservation, carbon reduction, quality improvement, and efficiency enhancement in the new power system, to recover waste heat from the converter valve cooling water circuit and reduce auxiliary energy consumption in converter stations, the industry has successively developed and launched converter valve waste heat utilization devices. These devices extract heat from the cooling circuit through heat exchange branches and use the waste heat for valve hall insulation, station domestic heating, and auxiliary building heating, thereby achieving cascaded energy utilization. Converter valve waste heat utilization devices are gradually becoming a key equipment promoted in the field of energy-saving retrofitting of converter stations.

[0003] After the waste heat recovery device for converter valves is connected to the existing valve cooling system, the start-up and shutdown of the heat exchange branch and changes in the heat exchange load will disturb the operating parameters of the main cooling circuit, such as water temperature, flow rate, and pressure. The reliability of the waste heat recovery device is directly related to the heat dissipation safety of the converter valve itself. Currently, there is no mature and complete test plan for the waste heat recovery device of converter valves that fits the actual field conditions. Existing tests are mostly individual heat exchange performance tests that are detached from the valve cooling system. They cannot simulate the heat source fluctuations caused by dynamic changes in the converter valve power, nor can they assess the mutual interference characteristics when the waste heat branch is coupled with the existing valve cooling system. It is difficult to fully verify the variable load operating efficiency of the waste heat recovery device, the reliability of the rapid disconnection protection action under fault conditions, and the safety margin of the valve cooling system after connection. The accuracy of test results obtained by relying solely on offline bench tests is limited, which reduces the reliability of the waste heat recovery device. Summary of the Invention

[0004] This invention provides a testing method and system for a converter valve waste heat recovery device, solving the current problem of the lack of a mature and complete testing scheme for converter valve waste heat recovery devices that closely matches actual field conditions. Existing tests are mostly individual heat exchange performance tests separated from the valve cooling system, which cannot simulate the heat source fluctuation conditions caused by dynamic changes in converter valve power, nor can they assess the mutual interference characteristics when the waste heat branch is coupled with the original valve cooling system. It is difficult to comprehensively verify the variable load operating efficiency of the waste heat recovery device, the reliability of the rapid disconnection protection action under fault conditions, and the safety margin of the valve cooling system after connection. The accuracy of test results obtained solely from offline bench tests is limited, which reduces the technical problem of the reliability of converter valve waste heat recovery device operation.

[0005] The first aspect of this invention provides a testing method for a converter valve waste heat recovery device, comprising:

[0006] Multiple heat source boundary data of the converter valve waste heat utilization device are obtained, and the heating decoupling test of the converter valve waste heat utilization device is performed using each heat source boundary data to obtain the corresponding heating subsystem performance data.

[0007] The waste heat recovery device of the converter valve is subjected to refrigeration decoupling test using the boundary data of each heat source to obtain the corresponding refrigeration subsystem performance data.

[0008] Based on the heat source boundary data corresponding to the preset rated load, the waste heat utilization device of the converter valve is subjected to combined cooling and heating test and disturbance robustness test to obtain the corresponding coupled operating condition performance data and disturbance robustness test data.

[0009] The performance of the converter valve waste heat recovery device is evaluated based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating conditions, and the disturbance robustness test data, and the corresponding test results are obtained.

[0010] Optionally, the step of using the boundary data of each heat source to perform a heating decoupling test on the waste heat recovery device of the converter valve to obtain the corresponding heating subsystem performance data includes:

[0011] Based on the boundary data of each heat source, the waste heat utilization device of the converter valve in the heating mode is tested in sequence to obtain multiple heating decoupling operating condition data.

[0012] Each of the aforementioned heating decoupling conditions is input into a preset heating output function to obtain multiple heating output values;

[0013] Each of the aforementioned heating output values ​​is compared with the total electric power of the heat pump in the corresponding heating decoupling operating condition data to obtain multiple heat pump heating performance coefficients.

[0014] Each of the aforementioned heating output values ​​is compared with the corresponding total power of the heat pump to obtain multiple first differences;

[0015] Each of the first differences is compared with the recovered waste heat in the corresponding heat source boundary data to obtain multiple first waste heat grade utilization coefficients.

[0016] The heating decoupling operating condition data, the heating output value, the heating performance coefficient of the heat pump, and the first waste heat quality utilization coefficient are used as the corresponding heating subsystem performance data.

[0017] Optionally, the step of using the boundary data of each heat source to perform a refrigeration decoupling test on the waste heat recovery device of the converter valve to obtain the corresponding refrigeration subsystem performance data includes:

[0018] Based on the boundary data of each heat source, the waste heat utilization device of the converter valve in the cooling mode is tested in sequence to obtain multiple cooling decoupling condition data.

[0019] Each of the aforementioned cooling decoupling operating condition data is input into a preset cooling output function to obtain multiple cooling output values;

[0020] Each of the aforementioned refrigeration output values ​​is compared with the total power of the cold pump in the corresponding refrigeration decoupling operating condition data to obtain multiple lithium bromide thermodynamic coefficients.

[0021] Each of the aforementioned refrigeration output values ​​is compared with the corresponding total power of the cold pump to obtain multiple second differences;

[0022] Each of the second differences is compared with the recovered waste heat in the corresponding heat source boundary data to obtain multiple second waste heat grade utilization coefficients.

[0023] The refrigeration decoupling operating condition data, the refrigeration output value, the lithium bromide thermodynamic coefficient, and the second waste heat utilization coefficient are used as the corresponding refrigeration subsystem performance data.

[0024] Optionally, the step of performing combined cooling and heating tests and disturbance robustness tests on the converter valve waste heat utilization device based on the heat source boundary data corresponding to the preset rated load, to obtain the corresponding coupled operating condition performance data and disturbance robustness test data, includes:

[0025] The waste heat recovery device of the converter valve under the combined cooling and heating mode was tested using the heat source boundary data corresponding to the preset rated load, and the corresponding coupled operating condition data was obtained.

[0026] The cooling output value and heating output value in the coupled operating condition data are summed to obtain the corresponding total effective output value.

[0027] The ratio of the total effective output value to the total input power in the coupled operating condition data is processed to obtain the corresponding combined cooling and heating energy efficiency ratio.

[0028] The coupled operating condition data is input into a preset coupled heat loss function to obtain the corresponding coupled heat loss ratio, and the coupled operating condition data, the total effective output value, the combined cooling and heating energy efficiency ratio and the coupled heat loss ratio are used as the corresponding coupled operating condition performance data.

[0029] The disturbance robustness test of the converter valve waste heat utilization device under the combined cooling and heating mode was carried out using the heat source boundary data corresponding to the preset rated load and the pre-acquired simulated heat source response time. The corresponding disturbance condition data were obtained.

[0030] The robustness of the disturbance condition data and the response time of the simulated heat source are evaluated to obtain the corresponding disturbance robustness test data.

[0031] Optionally, the disturbance condition data includes total regression time, protection action evaluation, disturbance cooling output value, and disturbance heating output value. The step of performing a robustness assessment on the disturbance condition data and the response time of the simulated heat source to obtain the corresponding disturbance robustness test data includes:

[0032] The difference between the total regression time and the response time of the simulated heat source is processed to obtain the corresponding disturbance recovery time.

[0033] The ratio of the disturbed cooling output value to the preset cooling target output value is processed to obtain the corresponding first ratio.

[0034] The ratio of the disturbed heating output value to the preset heating target output value is processed to obtain the corresponding second ratio.

[0035] The minimum value between the first ratio and the second ratio is selected as the operating condition adaptation margin, and the disturbance recovery time, the operating condition adaptation margin, and the protection action evaluation are used as disturbance robustness test data.

[0036] Optionally, the step of evaluating the performance of the converter valve waste heat recovery device based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, and the disturbance robustness test data to obtain the corresponding test results includes:

[0037] The waste heat utilization device of the converter valve was subjected to a long-term continuous reliability test to obtain the initial refrigeration waste heat utilization coefficient, the termination refrigeration waste heat utilization coefficient, the initial heating waste heat utilization coefficient, the termination heating waste heat utilization coefficient, the initial combined cooling and heating energy efficiency ratio, the termination combined cooling and heating energy efficiency ratio, and the reliability test records.

[0038] The difference between the initial refrigeration waste heat utilization coefficient and the final refrigeration waste heat utilization coefficient is processed to obtain a third difference value, and the third difference value is compared with the initial refrigeration waste heat utilization coefficient to obtain the corresponding first attenuation rate.

[0039] The difference between the initial heating waste heat utilization coefficient and the final heating waste heat utilization coefficient is processed to obtain a fourth difference value. The fourth difference value is then compared with the initial heating waste heat utilization coefficient to obtain the corresponding second attenuation rate.

[0040] The difference between the initial combined cooling and heating energy efficiency ratio and the final combined cooling and heating energy efficiency ratio is processed to obtain the fifth difference value. The fifth difference value is then compared with the initial combined cooling and heating energy efficiency ratio to obtain the corresponding third attenuation rate.

[0041] When the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record meet the preset qualification conditions, the test qualification is taken as the corresponding test result.

[0042] If the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record do not meet the qualification conditions, then the test failure shall be taken as the corresponding test result.

[0043] The second aspect of the present invention provides a test system for a converter valve waste heat recovery device, comprising:

[0044] The acquisition module is used to acquire multiple heat source boundary data of the converter valve waste heat utilization device, and to perform a heating decoupling test on the converter valve waste heat utilization device using each heat source boundary data to obtain the corresponding heating subsystem performance data.

[0045] The first test module is used to perform a refrigeration decoupling test on the waste heat utilization device of the converter valve using the boundary data of each heat source, and to obtain the corresponding refrigeration subsystem performance data.

[0046] The second test module is used to perform combined cooling and heating tests and disturbance robustness tests on the converter valve waste heat utilization device according to the heat source boundary data corresponding to the preset rated load, and obtain the corresponding coupled operating condition performance data and disturbance robustness test data.

[0047] The evaluation module is used to evaluate the performance of the converter valve waste heat utilization device based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating conditions, and the disturbance robustness test data, and obtain the corresponding test results.

[0048] A third aspect of the present invention provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the test method for the waste heat utilization device of the converter valve as described above.

[0049] The fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed, implements the test method for the waste heat recovery device of the converter valve as described above.

[0050] The fifth aspect of the present invention provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, wherein, when the program instructions are executed by a computer, the computer performs the test method for the waste heat utilization device of the converter valve as described above.

[0051] As can be seen from the above technical solutions, the present invention has the following advantages:

[0052] This invention acquires multiple heat source boundary data of a converter valve waste heat recovery device, and uses this data to conduct heating decoupling tests on the device to obtain corresponding heating subsystem performance data. Similarly, it uses the same heat source boundary data to conduct cooling decoupling tests, obtaining corresponding cooling subsystem performance data. Based on the heat source boundary data corresponding to a preset rated load, it conducts combined heating and cooling tests and disturbance robustness tests on the device, obtaining corresponding coupled operating condition performance data and disturbance robustness test data. Finally, based on the heating subsystem performance data, cooling subsystem performance data, coupled operating condition performance data, and disturbance robustness test data, the device's performance is evaluated, yielding corresponding test results. This overcomes the technical problem that existing tests, which are mostly individual heat exchange performance tests detached from the valve cooling system, cannot simulate the heat source fluctuations caused by dynamic changes in converter valve power, thus reducing the reliability of the converter valve waste heat recovery device. Compared with traditional testing methods for converter valve waste heat recovery devices, this invention, by sequentially conducting heating decoupling tests, cooling decoupling tests, combined heating and cooling coupling tests, and disturbance robustness tests, can separately test the independent operating performance of a single branch and the coupled and coordinated operating performance of two branches. This allows for the separate acquisition of steady-state basic parameters such as waste heat recovery capacity and energy efficiency levels of the heating and cooling subsystems under different heat source boundary conditions. It also reproduces the actual coupled operating conditions of the device's combined heating and cooling, quantifying the overall energy efficiency and coupled heat loss when both branches are operating simultaneously. Furthermore, the disturbance robustness test simulates heat source waste heat fluctuations, evaluating the device's dynamic adjustment and recovery capabilities and the reliability of its protection logic. The four types of test data collected in multiple dimensions and at different levels are cross-referenced and corroborated, avoiding the one-sidedness of evaluations based solely on a single steady-state condition. This results in a more comprehensive, objective, and accurate overall performance evaluation of the converter valve waste heat recovery device, improving its operational reliability. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a flowchart of the steps for testing a waste heat recovery device for a converter valve according to Embodiment 1 of the present invention.

[0055] Figure 2 This is a flowchart of the steps for testing a waste heat recovery device for a converter valve according to Embodiment 2 of the present invention.

[0056] Figure 3 This is a structural block diagram of a test system for a converter valve waste heat utilization device provided in Embodiment 3 of the present invention;

[0057] Figure 4 This is a structural block diagram of an electronic device provided in Embodiment 4 of the present invention. Detailed Implementation

[0058] This invention provides a testing method and system for a converter valve waste heat recovery device, addressing the current lack of a mature and comprehensive testing scheme for converter valve waste heat recovery devices that closely matches actual field conditions. Existing tests are mostly individual heat exchange performance tests detached from the valve cooling system, which cannot simulate the heat source fluctuations caused by dynamic changes in converter valve power, nor can they assess the mutual interference characteristics when the waste heat branch is coupled with the original valve cooling system. It is difficult to comprehensively verify the variable load operating efficiency of the waste heat recovery device, the reliability of rapid disconnection protection action under fault conditions, and the safety margin of the valve cooling system after connection. The accuracy of test results obtained solely from offline bench tests is limited, reducing the technical problem of the reliability of converter valve waste heat recovery device operation.

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] Please see Figure 1 , Figure 1 The flowchart illustrates the steps of a test method for a converter valve waste heat utilization device provided in Embodiment 1 of the present invention.

[0061] The present invention provides a testing method for a converter valve waste heat recovery device, comprising:

[0062] Step 101: Obtain the boundary data of multiple heat sources of the converter valve waste heat utilization device, and use the boundary data of each heat source to perform a heating decoupling test on the converter valve waste heat utilization device to obtain the corresponding heating subsystem performance data.

[0063] Heat source boundary data refers to the set of input parameters used to reproduce the waste heat supply status under different operating conditions of the converter valve. This includes parameters such as waste heat recovery power, heat source supply water temperature, and circulation flow rate, and serves as the boundary input condition for all performance tests. The different operating conditions are specifically as follows:

[0064] Operating Condition A: Low Heat Load: Waste Heat Recovery Q rec,A =20kW, heat source water supply 50℃;

[0065] Operating Condition B: Rated Load: Q rec,B =60kW, heat source water supply 65℃;

[0066] Operating condition C: High heat load: Q rec,C =60kW, heat source water supply 80℃.

[0067] The performance data of the heating subsystem refers to the complete dataset output by the heating decoupling test, which includes heating decoupling operating condition data, heating output value, heat pump heating performance coefficient, and first waste heat grade utilization coefficient, serving as the basic reference data for overall system performance evaluation.

[0068] In this embodiment of the invention, multiple heat source boundary data of the converter valve waste heat utilization device are acquired. Each set of heat source boundary data is sequentially loaded onto the simulated heat source side of the converter valve waste heat utilization device, locking the relevant pipelines and electrical circuits of the refrigeration subsystem, eliminating thermal and hydraulic interference caused by the refrigeration branch, and enabling the converter valve waste heat utilization device to operate in heating mode. After the system reaches thermal steady state, heating decoupling condition data is collected. Each heating decoupling condition data is input into a preset heating output function to obtain multiple heating output values. Each heating output value and the total power of the heat pump in the corresponding heating decoupling condition data are input into a preset heat pump heating performance function to obtain multiple heat pump heating performance coefficients. Each heating output value and the recovered waste heat and the total power of the heat pump in the corresponding heat source boundary data are input into a preset first waste heat grade utilization function to obtain multiple first waste heat grade utilization coefficients. The performance data of the corresponding heating subsystem are obtained by using the data of each heating decoupling condition, each heating output value, each heat pump heating performance coefficient, and each first waste heat grade utilization coefficient.

[0069] It should be noted that the heat pump heating performance function is as follows:

[0070] ;

[0071] in, The coefficient of performance (COP) of a heat pump. This is the heating output value. This refers to the total electrical power of the heat pump (i.e., the total electrical power of the compressor, water pump, and fan).

[0072] The specific function for utilizing the first waste heat grade is as follows:

[0073] ;

[0074] in, The first waste heat grade utilization coefficient, To recover waste heat.

[0075] Step 102: Use the boundary data of each heat source to perform a refrigeration decoupling test on the waste heat utilization device of the converter valve, and obtain the corresponding refrigeration subsystem performance data.

[0076] The performance data of the refrigeration subsystem refers to the complete dataset output by the refrigeration decoupling test, which includes refrigeration decoupling operating condition data, refrigeration output value, lithium bromide thermodynamic coefficient, and second waste heat utilization coefficient. It is an important basic data for the overall performance evaluation of the system.

[0077] In this embodiment of the invention, the piping and electrical circuits of the heating subsystem of the converter valve waste heat utilization device are locked, and the hydraulic and thermal interference generated by the heating branch is shielded. The converter valve waste heat utilization device is switched to cooling mode, and tests are conducted by loading heat source boundary data group by group. After the converter valve waste heat utilization device enters thermal steady state, cooling decoupling condition data is collected. Each cooling decoupling condition data is input into a preset cooling output function to obtain multiple cooling output values. Each cooling output value and the total power of the cold pump in the corresponding cooling decoupling condition data are input into a preset lithium bromide thermodynamic function to obtain multiple lithium bromide thermodynamic coefficients. Each cooling output value and the corresponding heat source boundary data and the total power of the cold pump are input into a preset second waste heat grade utilization function to obtain multiple second waste heat grade utilization coefficients. Each cooling decoupling condition data, each cooling output value, each lithium bromide thermodynamic coefficient, and each second waste heat grade utilization coefficient are used as the corresponding cooling subsystem performance data.

[0078] It should be noted that the heat pump heating performance function is as follows:

[0079] ;

[0080] in, The thermal coefficient of lithium bromide, This is the cooling output value. This refers to the total electrical power of the cold pump (i.e., the total electrical power of the solution pump, cooling pump, cooling tower fan, and chilled water pump).

[0081] The specific function for utilizing the first waste heat grade is as follows:

[0082] ;

[0083] in, The second waste heat grade utilization coefficient.

[0084] Step 103: Based on the heat source boundary data corresponding to the preset rated load, conduct combined cooling and heating tests and disturbance robustness tests on the converter valve waste heat utilization device to obtain the corresponding coupled operating condition performance data and disturbance robustness test data.

[0085] The preset rated load corresponding heat source boundary data refers to a set of heat source boundary parameters set according to the rated working conditions of the converter valve waste heat utilization device. It simulates the waste heat supply state on the converter valve side when the device is running at full load and is a fixed input condition for combined cooling and heating and disturbance robustness testing.

[0086] Coupled operating condition performance data refers to the dataset output from combined cooling and heating tests, which includes coupled operating condition data, total effective output value, combined cooling and heating energy efficiency ratio, and the proportion of coupled heat loss, reflecting the comprehensive performance of the device in coupled steady-state operation.

[0087] Disturbance robustness test data refers to the test conducted under steady-state conditions of combined cooling and heating by applying a step disturbance to the heat source parameters to verify the output recovery capability and protection logic reliability of the device after being disturbed. It is used to verify the device's ability to adapt to heat source fluctuations in the converter valve.

[0088] In this embodiment of the invention, heat source boundary data corresponding to a preset rated load is invoked to simultaneously put the heating and cooling subsystems of the converter valve waste heat utilization device into operation, placing the device in a combined cooling and heating mode. After the system stabilizes, coupled operating condition data is collected. The cooling and heating output values ​​in the coupled operating condition data are summed to obtain the corresponding total effective output value. The ratio of the total effective output value to the total input power in the coupled operating condition data is calculated to obtain the corresponding combined cooling and heating energy efficiency ratio. The coupled operating condition data is input into a preset coupled heat loss function to obtain the corresponding coupled heat loss ratio. The coupled operating condition data, total effective output value, combined cooling and heating energy efficiency ratio, and coupled heat loss ratio are used as the corresponding coupled operating condition performance data. A disturbance robustness test is conducted on the converter valve waste heat utilization device in the combined cooling and heating mode using heat source boundary data corresponding to a preset rated load and a pre-acquired simulated heat source response time, obtaining the corresponding disturbance operating condition data. The disturbance condition data and the response time of the simulated heat source are used to perform quantitative evaluation calculations to obtain the disturbance recovery time and the condition adaptation margin. These are combined with the protection action evaluation based on the disturbance condition data to form the disturbance robustness test data.

[0089] Step 104: Evaluate the performance of the converter valve waste heat recovery device based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating conditions, and the disturbance robustness test data, and obtain the corresponding test results.

[0090] In this embodiment of the invention, a long-term continuous reliability test is conducted on the waste heat recovery device of the converter valve. The initial refrigeration waste heat utilization coefficient, the terminated refrigeration waste heat utilization coefficient, the initial heating waste heat utilization coefficient, the terminated heating waste heat utilization coefficient, the initial combined cooling and heating energy efficiency ratio, the terminated combined cooling and heating energy efficiency ratio, and reliability test records are collected. A first attenuation rate, a second attenuation rate, and a third attenuation rate are calculated sequentially. When the performance data of the heating subsystem, the performance data of the refrigeration subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test records meet the preset qualification conditions, the test is considered qualified as the corresponding test result. When the performance data of the heating subsystem, the performance data of the refrigeration subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test records do not meet the qualification conditions, the test is considered unqualified as the corresponding test result.

[0091] It should be noted that the expression for the first attenuation rate is as follows:

[0092] First attenuation rate = (initial refrigeration waste heat utilization coefficient - final refrigeration waste heat utilization coefficient) / initial refrigeration waste heat utilization coefficient;

[0093] The expression for the second attenuation rate is as follows:

[0094] Second decay rate = (initial heating waste heat utilization coefficient - termination heating waste heat utilization coefficient) / initial heating waste heat utilization coefficient.

[0095] The expression for the third attenuation rate is as follows:

[0096] Third decay rate = (initial combined cooling and heating energy efficiency ratio - final combined cooling and heating energy efficiency ratio) / initial combined cooling and heating energy efficiency ratio.

[0097] In this embodiment of the invention, multiple heat source boundary data of the converter valve waste heat utilization device are acquired. Heating decoupling tests are then performed on the device using these heat source boundary data to obtain corresponding heating subsystem performance data. Similarly, cooling decoupling tests are performed using the same heat source boundary data to obtain corresponding cooling subsystem performance data. Combined cooling and heating tests and disturbance robustness tests are then conducted on the device based on the heat source boundary data corresponding to the preset rated load, yielding corresponding coupled operating condition performance data and disturbance robustness test data. Finally, the performance of the converter valve waste heat utilization device is evaluated based on the heating subsystem performance data, cooling subsystem performance data, coupled operating condition performance data, and disturbance robustness test data, resulting in corresponding test results. This overcomes the technical problem that existing tests, which are mostly single-unit heat exchange performance tests detached from the valve cooling system, cannot simulate the heat source fluctuation conditions caused by dynamic changes in converter valve power, thus reducing the reliability of the converter valve waste heat utilization device's operation. Compared with traditional testing methods for converter valve waste heat recovery devices, this invention, by sequentially conducting heating decoupling tests, cooling decoupling tests, combined heating and cooling coupling tests, and disturbance robustness tests, can separately test the independent operating performance of a single branch and the coupled and coordinated operating performance of two branches. This allows for the separate acquisition of steady-state basic parameters such as waste heat recovery capacity and energy efficiency levels of the heating and cooling subsystems under different heat source boundary conditions. It also reproduces the actual coupled operating conditions of the device's combined heating and cooling, quantifying the overall energy efficiency and coupled heat loss when both branches are operating simultaneously. Furthermore, the disturbance robustness test simulates heat source waste heat fluctuations, evaluating the device's dynamic adjustment and recovery capabilities and the reliability of its protection logic. The four types of test data collected in multiple dimensions and at different levels are cross-referenced and corroborated, avoiding the one-sidedness of evaluations based solely on a single steady-state condition. This results in a more comprehensive, objective, and accurate overall performance evaluation of the converter valve waste heat recovery device, improving its operational reliability.

[0098] Please see Figure 2 , Figure 2 This is a flowchart illustrating the steps of a test method for a converter valve waste heat utilization device provided in Embodiment 2 of the present invention.

[0099] The present invention provides a testing method for a converter valve waste heat recovery device, comprising:

[0100] Step 201: Obtain multiple heat source boundary data of the converter valve waste heat utilization device, and use the boundary data of each heat source to perform a heating decoupling test on the converter valve waste heat utilization device to obtain the corresponding heating subsystem performance data.

[0101] Further, step 201 includes the following sub-steps:

[0102] S11. Based on the boundary data of each heat source, the waste heat utilization device of the converter valve in the heating mode is tested in sequence to obtain multiple heating decoupling operating condition data.

[0103] Heating decoupled operating condition data refers to the set of raw operating parameters collected for a specific heat source boundary condition under the condition that only the heating subsystem is in operation and the cooling subsystem is completely isolated. These parameters include physical quantities such as inlet and outlet temperatures on the heat source side, inlet and outlet temperatures on the heating user side, circulating volumetric flow rate, total power of the heat pump, and ambient temperature.

[0104] In this embodiment of the invention, the waste heat recovery device of the converter valve in heating mode is tested sequentially based on the boundary data of each heat source. The boundary data of each heat source is used as input conditions, and the lithium bromide refrigeration branch of the waste heat recovery device is simultaneously shut down to ensure that the flow rate of the waste heat main pipe is not disturbed. After each operating condition reaches thermal steady state, the inlet and outlet water temperatures and flow rates on the heating side, as well as the electrical power of each device, are collected to obtain multiple heating decoupling operating condition data.

[0105] S12. Input the data of each heating decoupling condition into the preset heating output function to obtain multiple heating output values.

[0106] The heating output value refers to the result calculated by the heating output function. It represents the effective heat power actually output by the heating subsystem to the heating user side and intuitively reflects the heating capacity of the heating branch under different heat source boundary conditions.

[0107] In this embodiment of the invention, each set of steady-state acquired heating decoupling operating condition data is sequentially sent to a preset heating output function to obtain multiple heating output values.

[0108] It should be noted that the heating output function is as follows:

[0109] ;

[0110] in, This is the heating output value. The specific heat capacity of water at constant pressure. For the density of water, The loop inlet temperature is the temperature under the condition that only the heating subsystem is in operation and the refrigeration subsystem is completely isolated. The loop outlet temperature is the temperature under the condition that only the heating subsystem is in operation and the refrigeration subsystem is completely isolated. The circulating volumetric flow rate is the result of operating only the heating subsystem and completely isolating the refrigeration subsystem.

[0111] S13. Ratio each heating output value with the total power of the heat pump in the corresponding heating decoupling operating condition data to obtain multiple heat pump heating performance coefficients.

[0112] The coefficient of performance (COP) of a heat pump is the ratio of its heating output to its total electrical power under the same operating conditions. It is a dimensionless index used to measure the overall efficiency of converting electrical energy into heat energy under the heating conditions of a water source heat pump. The higher the COP, the better the level of electrical energy utilization on the heating side.

[0113] The total electrical power of a heat pump refers to the sum of electrical power consumed by all electrical equipment in the heating subsystem recorded in the heating decoupling operating condition data, including the power consumption of equipment such as compressors, circulating water pumps, and fans.

[0114] In this embodiment of the invention, the ratio between each heating output value and the total electric power of the heat pump in the corresponding heating decoupling operating condition data is calculated to obtain multiple heat pump heating performance coefficients.

[0115] S14. Perform difference processing on each heating output value and the corresponding total power of the heat pump to obtain multiple first differences.

[0116] In this embodiment of the invention, the difference between each heating output value and the corresponding total power of the heat pump is calculated to obtain multiple first differences.

[0117] S15. Ratio the first difference with the waste heat recovered in the corresponding heat source boundary data to obtain multiple first waste heat grade utilization coefficients.

[0118] Waste heat recovery refers to the waste heat power that can be provided by the converter valve side as recorded within the heat source boundary data, representing the usable heat that the waste heat source can release.

[0119] The first waste heat grade utilization coefficient refers to the ratio of the first difference to the corresponding recovered waste heat. It is a dimensionless evaluation index used to measure the device's ability to convert and utilize low-grade waste heat from the converter valve under heating conditions. The closer the value is to 1, the better the waste heat utilization effect.

[0120] In this embodiment of the invention, the ratio between each first difference and the recovered waste heat in the corresponding heat source boundary data is calculated to obtain multiple first waste heat grade utilization coefficients.

[0121] S16. Use the data of each heating decoupling condition, each heating output value, each heat pump heating performance coefficient, and each first waste heat grade utilization coefficient as the corresponding heating subsystem performance data.

[0122] In this embodiment of the invention, the data of each heating decoupling condition, each heating output value, each heat pump heating performance coefficient, and each first waste heat utilization coefficient are collected and integrated to obtain the corresponding heating subsystem performance data.

[0123] Step 202: Use the boundary data of each heat source to perform a refrigeration decoupling test on the waste heat utilization device of the converter valve to obtain the corresponding refrigeration subsystem performance data.

[0124] Further, step 202 includes the following sub-steps:

[0125] S21. Based on the boundary data of each heat source, the waste heat utilization device of the converter valve in the refrigeration mode is tested in sequence to obtain multiple refrigeration decoupling condition data.

[0126] Refrigeration decoupling operating condition data refers to the raw measured data collected after the refrigeration subsystem reaches thermal steady state under the boundary conditions of each heat source, covering operating parameters such as total power of the cold pump, loop temperature, and circulation flow rate.

[0127] In this embodiment of the invention, the pipeline valves and related electrical equipment of the heating subsystem in the converter valve waste heat utilization device are closed to eliminate the hydraulic and thermal interference caused by the heating branch. The converter valve waste heat utilization device is switched to the cooling operation mode. Each set of heat source boundary data is loaded in sequence. After each set of boundary data is loaded, the device is waited to enter the thermal steady state. Then, various operating parameters under this condition are collected and recorded. After multiple sets of heat source boundaries are traversed, multiple sets of cooling decoupling condition data can be obtained.

[0128] S22. Input the data of each refrigeration decoupling condition into the preset refrigeration output function to obtain multiple refrigeration output values.

[0129] The cooling output value refers to the calculated result of the cooling output function, which represents the effective cooling power output by the lithium bromide refrigeration subsystem to the user side, reflecting the actual cooling capacity of the refrigeration branch under different heat source boundary conditions.

[0130] In this embodiment of the invention, the cooling decoupling operating condition data collected under each steady state are sequentially imported into a preset cooling output function to obtain multiple cooling output values.

[0131] It should be noted that the cooling output function is as follows:

[0132] ;

[0133] in, This is the cooling output value. The specific heat capacity of water at constant pressure. For the density of water, The loop inlet temperature is the temperature under the condition that only the refrigeration subsystem is in operation and the heating subsystem is completely isolated. The loop outlet temperature is the temperature under the condition that only the refrigeration subsystem is in operation and the heating subsystem is completely isolated. The circulating volumetric flow rate is the result of operating only the refrigeration subsystem and completely isolating the heating subsystem.

[0134] S23. Ratio each refrigeration output value with the total power of the cold pump in the corresponding refrigeration decoupling operating condition data to obtain multiple lithium bromide thermodynamic coefficients.

[0135] The lithium bromide thermodynamic coefficient refers to the dimensionless ratio of the refrigeration output value to the total electrical power of the cooling pump under the same operating conditions. It is used to characterize the conversion efficiency between the cooling output and electrical energy consumption of a lithium bromide absorption chiller. The higher the value, the better the electrical energy utilization effect on the refrigeration side.

[0136] The total electrical power of the cooling pump refers to the total electrical power consumed by all auxiliary equipment of the refrigeration subsystem recorded in the refrigeration decoupling operating condition data, including the power consumption of solution pumps, chilled water pumps, cooling water pumps, cooling tower fans, etc.

[0137] In this embodiment of the invention, the ratio between each cooling output value and the total electrical power of the cold pump in the corresponding cooling decoupling operating condition data is calculated to obtain multiple lithium bromide thermodynamic coefficients.

[0138] S24. Perform difference processing on each refrigeration output value and the corresponding total power of the cold pump to obtain multiple second differences.

[0139] In this embodiment of the invention, the difference between each cooling output value and the corresponding total power of the cold pump is calculated to obtain multiple second differences.

[0140] S25. Ratio each second difference with the waste heat recovered in the corresponding heat source boundary data to obtain multiple second waste heat grade utilization coefficients.

[0141] The second waste heat grade utilization coefficient refers to the dimensionless ratio of the second difference to the corresponding recovered waste heat. It is used to evaluate the device's ability to convert and utilize low-grade waste heat from the converter valve in refrigeration mode. The closer the value is to 1, the higher the level of waste heat utilization.

[0142] In this embodiment of the invention, the ratio between each second difference and the recovered waste heat in the corresponding heat source boundary data is calculated to obtain multiple second waste heat grade utilization coefficients.

[0143] S26. Use the data of each refrigeration decoupling condition, each refrigeration output value, each lithium bromide thermodynamic coefficient, and each second waste heat utilization coefficient as the corresponding refrigeration subsystem performance data.

[0144] In this embodiment of the invention, various refrigeration decoupling operating condition data, various refrigeration output values, various lithium bromide thermodynamic coefficients, and various second waste heat quality utilization coefficients are collected and integrated to assemble complete refrigeration subsystem performance data.

[0145] Step 203: Test the waste heat utilization device of the converter valve under the combined cooling and heating mode using the heat source boundary data corresponding to the preset rated load, and obtain the corresponding coupled operating condition data.

[0146] Coupled operating condition data refers to the set of all original operating parameters collected after the system reaches thermal steady state in the combined cooling and heating mode where the heating and cooling subsystems are simultaneously connected in parallel on the same waste heat header. This includes the inlet and outlet temperatures and total flow rate of the waste heat header, the inlet and outlet temperatures and flow rates of the heating branches, the inlet and outlet temperatures and flow rates of the cooling branches, the total input power, the cooling output value, the heating output value, the ambient temperature, and the operating status signals of each device.

[0147] In this embodiment of the invention, the waste heat utilization device of the converter valve under combined cooling and heating mode is tested using the heat source boundary data corresponding to the preset rated load (rated operating condition B: 60kW waste heat recovery, 65℃ heat source water supply). During the test, two parallel branches for heating and cooling are simultaneously activated, allowing the two subsystems to operate collaboratively on the same waste heat main pipe, with simultaneous cooling and heating at the terminal, simulating a real-world coupling scenario in an engineering field. After the system reaches steady state, it runs continuously for 60 minutes, collecting the temperature and flow rate of the waste heat main pipe and both branches, as well as the total input electrical power of the entire device, to obtain the corresponding coupling operating condition data.

[0148] Step 204: Sum the cooling output value and heating output value in the coupled operating condition data to obtain the corresponding total effective output value.

[0149] Total effective output value refers to the result obtained by adding the cooling output value and the heating output value, which represents the total output level of the unit in terms of cold and heat energy under combined cooling and heating conditions.

[0150] In this embodiment of the invention, the sum of the cooling output value and the heating output value in the coupled operating condition data is calculated to obtain the corresponding total effective output value.

[0151] Step 205: Calculate the ratio between the total effective output value and the total input power in the coupled operating condition data to obtain the corresponding combined cooling and heating energy efficiency ratio.

[0152] Total input power refers to the sum of the power consumed by all electrical equipment in the converter valve waste heat utilization device under the combined cooling and heating mode.

[0153] The combined cooling and heating power efficiency ratio (CCHP) refers to the dimensionless ratio of total effective output value to total input electrical power, and is used to evaluate the overall energy conversion efficiency of the device under coupled operating conditions where cooling and heating are output simultaneously.

[0154] In this embodiment of the invention, the ratio between the total effective output value and the total input power in the coupled operating condition data is calculated to obtain the corresponding combined cooling and heating energy efficiency ratio.

[0155] Step 206: Input the coupled operating condition data into the preset coupled heat loss function to obtain the corresponding coupled heat loss ratio, and use the coupled operating condition data, total effective output value, combined cooling and heating energy efficiency ratio and coupled heat loss ratio as the corresponding coupled operating condition performance data.

[0156] In this embodiment of the invention, the coupled operating condition data is input into a preset coupled heat loss function to obtain the corresponding coupled heat loss ratio. The original measured coupled operating condition data, the total effective output value, the combined cooling and heating energy efficiency ratio, and the coupled heat loss ratio are then uniformly collected to form coupled operating condition performance data.

[0157] It should be noted that the coupling heat loss function is specifically as follows:

[0158] ;

[0159] in, This represents the proportion of coupled heat loss. To recover total waste heat, This represents the total input electrical power.

[0160] Step 207: Using the heat source boundary data corresponding to the preset rated load and the pre-acquired simulated heat source response time, conduct a disturbance robustness test on the converter valve waste heat utilization device under the combined cooling and heating mode to obtain the corresponding disturbance condition data.

[0161] Disturbance condition data refers to the set of characteristic parameters collected and calculated during the disturbance robustness test, from the start of the disturbance to the complete recovery of the system to steady state. These parameters include total regression time, protection action evaluation, disturbance cooling output value, and disturbance heating output value.

[0162] In this embodiment of the invention, the device under combined cooling and heating mode is subjected to a disturbance robustness test using the heat source boundary data corresponding to the preset rated load and the pre-acquired simulated heat source response time. The test starts from the coupled steady state (rated operating condition B, 65℃ water supply, 60kW waste heat) in step 203, and applies two types of step disturbances: the heat source water supply temperature drops from 65℃ to 50℃, and the heat source flow rate drops by 20%. After each disturbance is applied, the device responds freely, and all signals are continuously collected until the heating and cooling output power returns to within ±5% of the steady-state value before the disturbance. The total measured return time (i.e., total return time) is recorded. During the test, the correctness of protection logic actions such as over-temperature, low-pressure, and low-flow is also recorded to form a protection action evaluation. The disturbance cooling output value and disturbance heating output value after the disturbance stabilizes are obtained.

[0163] Step 208: Perform robustness assessment on the disturbance condition data and the response time of the simulated heat source to obtain the corresponding disturbance robustness test data.

[0164] Furthermore, the disturbance condition data includes total regression time, protection action evaluation, disturbance cooling output value, and disturbance heating output value. Step 208 includes the following sub-steps:

[0165] S31. The difference between the total regression time and the response time of the simulated heat source is processed to obtain the corresponding disturbance recovery time.

[0166] Total regression time refers to the total measured time from the moment the disturbance is applied until the device's hot and cold output parameters return to the allowable deviation range in the disturbance robustness test, including the response time of the simulated heat source and the adjustment time of the device itself.

[0167] The simulated heat source's own response time refers to the time it takes for the simulated heat source to adjust its temperature and power to a new steady state after being subjected to a step disturbance. It is used to eliminate the interference of the dynamic characteristics of the heat source equipment itself on the test results of the device.

[0168] Disturbance recovery time refers to the time parameter obtained after deducting the response time of the simulated heat source itself, representing the actual time it takes for the waste heat utilization device to adjust and return to steady state after being disturbed by the heat source.

[0169] In this embodiment of the invention, the difference between the total regression time and the response time of the simulated heat source is calculated to obtain the corresponding disturbance recovery time.

[0170] S32. Ratio the disturbed cooling output value with the preset cooling target output value to obtain the corresponding first ratio.

[0171] The perturbation cooling output value refers to the effective cooling power actually output by the refrigeration subsystem after the system reaches a steady state again following the application of a heat source perturbation.

[0172] The target output value of cooling refers to the ideal output cooling power of the cooling side under the rated operating conditions of combined cooling and heating, which is used as the benchmark for evaluating the cooling output capacity after disturbance.

[0173] In this embodiment of the invention, the ratio between the disturbed cooling output value and the preset cooling target output value is calculated to obtain the corresponding first ratio.

[0174] S33. Ratio the disturbed heating output value with the preset heating target output value to obtain the corresponding second ratio.

[0175] The perturbation heating output value refers to the effective heat power actually output by the heating subsystem when the system returns to stability after a heat source perturbation is applied.

[0176] The target output value for heating refers to the ideal output thermal power of the heating side under the rated operating conditions of combined cooling and heating, which serves as the benchmark for evaluating the heating output capacity after disturbance.

[0177] In this embodiment of the invention, the ratio between the perturbation heating output value and the preset heating target output value is calculated to obtain the corresponding second ratio.

[0178] S34. Select the minimum value between the first ratio and the second ratio as the operating condition adaptation margin, and use the disturbance recovery time, operating condition adaptation margin and protection action evaluation as disturbance robustness test data.

[0179] Protection action evaluation refers to the qualitative evaluation record of the accuracy, timeliness, and whether there are any false or non-operation situations of various interlocking protection actions of the device during the disturbance robustness test.

[0180] In this embodiment of the invention, the first ratio and the second ratio are compared and selected, and the smaller value is taken as the operating condition adaptation margin. The disturbance recovery time, operating condition adaptation margin and protection action evaluation are used as disturbance robustness test data.

[0181] Step 209: Evaluate the performance of the converter valve waste heat recovery device based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating conditions, and the disturbance robustness test data, and obtain the corresponding test results.

[0182] Furthermore, step 209 includes the following sub-steps:

[0183] S41. Conduct a long-term continuous reliability test on the waste heat utilization device of the converter valve to obtain the initial refrigeration waste heat utilization coefficient, the termination refrigeration waste heat utilization coefficient, the initial heating waste heat utilization coefficient, the termination heating waste heat utilization coefficient, the initial combined cooling and heating energy efficiency ratio, the termination combined cooling and heating energy efficiency ratio, and the reliability test record.

[0184] The initial refrigeration waste heat utilization coefficient refers to the refrigeration waste heat utilization coefficient measured at the start of the long-cycle reliability test, which is the benchmark parameter for performance degradation calculation.

[0185] The waste heat utilization coefficient of the refrigeration system after termination refers to the waste heat utilization coefficient of the refrigeration side obtained by retesting after the end of the long-term reliability test. It represents the waste heat utilization level of the refrigeration subsystem after long-term operation.

[0186] The initial heating waste heat utilization coefficient refers to the heating side waste heat utilization coefficient measured at the start of the long-cycle reliability test, which serves as the benchmark parameter for calculating the performance degradation of the heating branch.

[0187] The waste heat utilization coefficient after termination of heating refers to the waste heat utilization coefficient on the heating side obtained after the long-term reliability test is completed and retested. It represents the waste heat utilization level of the heating subsystem after long-term operation.

[0188] The initial combined cooling and heating energy efficiency ratio refers to the overall energy efficiency ratio of the unit under combined cooling and heating conditions measured at the start of the long-cycle reliability test, and serves as the benchmark parameter for calculating the performance degradation under coupled conditions.

[0189] The combined cooling and heating efficiency ratio (CCHER) refers to the CCHER obtained after the long-term reliability test is completed and retested. It represents the overall energy efficiency level of the whole machine after long-term operation under coupled conditions.

[0190] In this embodiment of the invention, a long-term continuous reliability test is conducted on the waste heat recovery device of the converter valve to obtain the initial refrigeration waste heat utilization coefficient, the termination refrigeration waste heat utilization coefficient, the initial heating waste heat utilization coefficient, the termination heating waste heat utilization coefficient, the initial combined cooling and heating energy efficiency ratio, the termination combined cooling and heating energy efficiency ratio, and reliability test records. For example, before starting, the device is restored to the rated coupled steady-state operating condition of step 4 (60kW of waste heat recovery, 65℃ of heat source water supply), and the initial refrigeration waste heat utilization coefficient, the initial heating waste heat utilization coefficient, and the initial combined cooling and heating energy efficiency ratio are measured according to the methods in steps 203-206 as performance benchmarks. Subsequently, this operating condition is maintained for continuous operation for 72 hours, during which temperature, flow rate, power, and events such as fault alarms and protection actions are recorded once per hour to form a reliability test record.

[0191] S42. The difference between the initial refrigeration waste heat utilization coefficient and the final refrigeration waste heat utilization coefficient is processed to obtain the third difference value. The third difference value is then compared with the initial refrigeration waste heat utilization coefficient to obtain the corresponding first attenuation rate.

[0192] The first attenuation rate refers to the ratio of the third difference to the initial refrigeration waste heat utilization coefficient. It is a dimensionless index used to characterize the relative attenuation of the waste heat utilization performance of the refrigeration subsystem after a long period of operation.

[0193] In this embodiment of the invention, the difference between the initial refrigeration waste heat utilization coefficient and the final refrigeration waste heat utilization coefficient is calculated to obtain the corresponding third difference. The ratio between the third difference and the initial refrigeration waste heat utilization coefficient is calculated to obtain the corresponding first attenuation rate.

[0194] S43. The difference between the initial heating waste heat utilization coefficient and the termination heating waste heat utilization coefficient is processed to obtain the fourth difference value. The fourth difference value is then compared with the initial heating waste heat utilization coefficient to obtain the corresponding second attenuation rate.

[0195] The second attenuation rate refers to the dimensionless ratio of the fourth difference to the initial heating waste heat utilization coefficient, which is used to characterize the relative attenuation of the waste heat utilization performance of the heating subsystem after a long period of operation.

[0196] In this embodiment of the invention, the difference between the initial heating waste heat utilization coefficient and the final heating waste heat utilization coefficient is calculated to obtain the corresponding fourth difference. The ratio between the fourth difference and the initial heating waste heat utilization coefficient is calculated to obtain the corresponding second attenuation rate.

[0197] S44. The difference between the initial combined cooling and heating energy efficiency ratio and the final combined cooling and heating energy efficiency ratio is processed to obtain the fifth difference value. The fifth difference value is then compared with the initial combined cooling and heating energy efficiency ratio to obtain the corresponding third attenuation rate.

[0198] The third attenuation rate refers to the dimensionless ratio of the fifth difference to the initial combined cooling and heating energy efficiency ratio, which is used to characterize the relative attenuation of the overall energy efficiency of the whole machine after a long period of operation under combined cooling and heating conditions.

[0199] In this embodiment of the invention, the difference between the initial combined cooling and heating energy efficiency ratio and the final combined cooling and heating energy efficiency ratio is calculated to obtain the corresponding fifth difference. The ratio between the fifth difference and the initial combined cooling and heating energy efficiency ratio is calculated to obtain the corresponding third attenuation rate.

[0200] S45. When the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record meet the preset qualification conditions, the test qualification shall be taken as the corresponding test result.

[0201] In this embodiment of the invention, when the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record meet the preset qualification conditions, the test qualification is taken as the corresponding test result. For example, firstly, the utilization coefficient of the first waste heat grade under rated operating conditions in the heating decoupling test is compared with the preset threshold (≥0.85) (i.e., the utilization coefficient of the first waste heat grade is ≥0.85), and the heat pump heating performance coefficient under this condition is verified to meet the design expectation; secondly, the utilization coefficient of the second waste heat grade under rated operating conditions in the cooling decoupling test is compared with the preset threshold (≥0.65) (i.e., the utilization coefficient of the second waste heat grade is ≥0.65), and the lithium bromide thermodynamic coefficient is verified to meet the design requirements; then, the combined cooling and heating energy efficiency ratio in the coupled operating condition performance data is compared with the design index, and the proportion of coupled heat loss is confirmed to be no more than the allowable upper limit of 5%; then, the disturbance recovery time obtained from the disturbance robustness test is compared with the preset threshold (≤120s) (i.e., the recovery time meets the design requirements). The system must have a disturbance recovery time ≤120s, and the operating condition adaptation margin must be verified to be no less than 0.8. Simultaneously, all protection actions must be evaluated as "correct actions" with no false alarms or failures. Subsequently, the first attenuation rate (attenuation rate of the waste heat utilization coefficient on the cooling side), the second attenuation rate (attenuation rate of the waste heat utilization coefficient on the heating side), and the third attenuation rate (attenuation rate of the combined cooling and heating energy efficiency ratio) calculated after long-cycle testing are compared one by one with preset thresholds (≤5%) (i.e., the first, second, and third attenuation rates must all be ≤5%) to ensure that the performance of each dimension has not significantly degraded after continuous operation. Finally, the reliability test records are reviewed for any major faults or irrecoverable anomalies, confirming that all alarms and protection actions are within reasonable limits and that the system has not experienced unplanned shutdowns. When all the above indicators simultaneously meet their respective qualification conditions, the overall test result of the converter valve waste heat utilization device is deemed qualified.

[0202] S46. If the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record do not meet the qualification conditions, then the test failure shall be taken as the corresponding test result.

[0203] In this embodiment of the invention, firstly, the first waste heat utilization coefficient under rated operating conditions in the heating decoupling test is compared with a preset threshold (≥0.85) (i.e., the first waste heat utilization coefficient ≥0.85 is satisfied), and at the same time, it is verified whether the heat pump heating performance coefficient under this operating condition meets the design expectation; secondly, the second waste heat utilization coefficient under rated operating conditions in the cooling decoupling test is compared with a preset threshold (≥0.65) (i.e., the second waste heat utilization coefficient ≥0.65 is satisfied), and it is verified whether the lithium bromide thermodynamic coefficient meets the design requirements; then, the combined cooling and heating energy efficiency ratio in the coupled operating condition performance data is compared with the design index, and it is confirmed whether the proportion of coupled heat loss does not exceed the allowable upper limit of 5%; then, the disturbance recovery time obtained from the disturbance robustness test is compared with a preset threshold (≤120s). (That is, the disturbance recovery time must be ≤120s), and the operating condition adaptation margin must be verified to be no less than 0.8. Simultaneously, it must be confirmed that all protection actions are evaluated as "correct actions" with no false or failed actions. Subsequently, the first attenuation rate (attenuation rate of the waste heat utilization coefficient on the cooling side), the second attenuation rate (attenuation rate of the waste heat utilization coefficient on the heating side), and the third attenuation rate (attenuation rate of the combined cooling and heating energy efficiency ratio) calculated after the long-cycle test are compared one by one with the preset threshold (≤5%) (that is, the first, second, and third attenuation rates must all be ≤5%) to ensure that the performance of each dimension has not significantly degraded after continuous operation. Finally, the reliability test records are reviewed for any major faults or irrecoverable anomalies, confirming that all alarms and protection actions are within reasonable limits and that the system has not experienced unplanned shutdowns. If any indicator fails to meet the qualification conditions, the overall test result of the converter valve waste heat utilization device is deemed unqualified.

[0204] In this embodiment of the invention, multiple heat source boundary data of the converter valve waste heat utilization device are acquired. Heating decoupling tests are then performed on the device using these heat source boundary data to obtain corresponding heating subsystem performance data. Similarly, cooling decoupling tests are performed using the same heat source boundary data to obtain corresponding cooling subsystem performance data. Combined cooling and heating tests and disturbance robustness tests are then conducted on the device based on the heat source boundary data corresponding to the preset rated load, yielding corresponding coupled operating condition performance data and disturbance robustness test data. Finally, the performance of the converter valve waste heat utilization device is evaluated based on the heating subsystem performance data, cooling subsystem performance data, coupled operating condition performance data, and disturbance robustness test data, resulting in corresponding test results. This overcomes the technical problem that existing tests, which are mostly single-unit heat exchange performance tests detached from the valve cooling system, cannot simulate the heat source fluctuation conditions caused by dynamic changes in converter valve power, thus reducing the reliability of the converter valve waste heat utilization device's operation. Compared with traditional testing methods for converter valve waste heat recovery devices, this invention, by sequentially conducting heating decoupling tests, cooling decoupling tests, combined heating and cooling coupling tests, and disturbance robustness tests, can separately test the independent operating performance of a single branch and the coupled and coordinated operating performance of two branches. This allows for the separate acquisition of steady-state basic parameters such as waste heat recovery capacity and energy efficiency levels of the heating and cooling subsystems under different heat source boundary conditions. It also reproduces the actual coupled operating conditions of the device's combined heating and cooling, quantifying the overall energy efficiency and coupled heat loss when both branches are operating simultaneously. Furthermore, the disturbance robustness test simulates heat source waste heat fluctuations, evaluating the device's dynamic adjustment and recovery capabilities and the reliability of its protection logic. The four types of test data collected in multiple dimensions and at different levels are cross-referenced and corroborated, avoiding the one-sidedness of evaluations based solely on a single steady-state condition. This results in a more comprehensive, objective, and accurate overall performance evaluation of the converter valve waste heat recovery device, improving its operational reliability.

[0205] Please see Figure 3 , Figure 3 This is a structural block diagram of a test system for a converter valve waste heat utilization device provided in Embodiment 3 of the present invention.

[0206] The present invention provides a testing system for a waste heat recovery device of a converter valve, comprising:

[0207] The acquisition module 301 is used to acquire multiple heat source boundary data of the converter valve waste heat utilization device, and to perform heating decoupling test on the converter valve waste heat utilization device using the heat source boundary data to obtain the corresponding heating subsystem performance data.

[0208] The first test module 302 is used to perform a refrigeration decoupling test on the waste heat utilization device of the converter valve using boundary data of each heat source, and to obtain the corresponding refrigeration subsystem performance data.

[0209] The second test module 303 is used to perform combined cooling and heating tests and disturbance robustness tests on the converter valve waste heat utilization device according to the heat source boundary data corresponding to the preset rated load, and obtain the corresponding coupled operating condition performance data and disturbance robustness test data.

[0210] Evaluation module 304 is used to evaluate the performance of the converter valve waste heat recovery device based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, and the disturbance robustness test data, and obtain the corresponding test results.

[0211] Furthermore, the acquisition module 301 includes:

[0212] The first test submodule is used to test the waste heat utilization device of the converter valve in the heating mode in sequence based on the boundary data of each heat source, and obtain multiple heating decoupling condition data.

[0213] The second test submodule is used to input the data of each heating decoupling condition into a preset heating output function to obtain multiple heating output values.

[0214] Each heating output value is compared with the total power of the heat pump in the corresponding heating decoupling operating condition data to obtain multiple heat pump heating performance coefficients.

[0215] Each heating output value is compared with the corresponding total power of the heat pump to obtain multiple first differences;

[0216] Each first difference is compared with the recovered waste heat in the corresponding heat source boundary data to obtain multiple first waste heat grade utilization coefficients.

[0217] The performance data of the corresponding heating subsystem are obtained by using the data of each heating decoupling condition, each heating output value, each heat pump heating performance coefficient, and each first waste heat grade utilization coefficient.

[0218] Furthermore, the first test module 302 includes:

[0219] The third test submodule is used to test the waste heat utilization device of the converter valve in the cooling mode in sequence based on the boundary data of each heat source, and obtain multiple cooling decoupling condition data.

[0220] The fourth test submodule is used to input the data of each refrigeration decoupling condition into the preset refrigeration output function to obtain multiple refrigeration output values;

[0221] Each cooling output value was compared with the total power of the cold pump in the corresponding cooling decoupling operating condition data to obtain multiple lithium bromide thermodynamic coefficients.

[0222] Each cooling output value is compared with the corresponding total power of the cold pump to obtain multiple second differences.

[0223] Each second difference is compared with the recovered waste heat in the corresponding heat source boundary data to obtain multiple second waste heat grade utilization coefficients.

[0224] The performance data of the corresponding refrigeration subsystem are obtained by using the data of each refrigeration decoupling condition, each refrigeration output value, each lithium bromide thermodynamic coefficient, and each second waste heat quality utilization coefficient.

[0225] Furthermore, the second test module 303 includes:

[0226] The fifth test submodule is used to test the waste heat utilization device of the converter valve under the combined cooling and heating mode using the heat source boundary data corresponding to the preset rated load, and to obtain the corresponding coupled operating condition data.

[0227] The cooling output value and the heating output value in the coupled operating condition data are summed to obtain the corresponding total effective output value.

[0228] The ratio of the total effective output value to the total input power in the coupled operating condition data is processed to obtain the corresponding combined cooling and heating energy efficiency ratio.

[0229] Input the coupled operating condition data into the preset coupled heat loss function to obtain the corresponding coupled heat loss ratio, and use the coupled operating condition data, total effective output value, combined cooling and heating energy efficiency ratio and coupled heat loss ratio as the corresponding coupled operating condition performance data.

[0230] The sixth test submodule is used to conduct a disturbance robustness test on the converter valve waste heat utilization device under the combined cooling and heating mode using the heat source boundary data corresponding to the preset rated load and the pre-acquired simulated heat source response time, and to obtain the corresponding disturbance condition data.

[0231] The evaluation submodule is used to perform robustness evaluation on the disturbance condition data and the response time of the simulated heat source itself, and obtain the corresponding disturbance robustness test data.

[0232] Furthermore, the disturbance condition data includes total regression time, protection action evaluation, disturbance cooling output value, and disturbance heating output value. The evaluation submodule includes:

[0233] The first evaluation unit is used to process the difference between the total regression time and the response time of the simulated heat source itself to obtain the corresponding disturbance recovery time.

[0234] The ratio of the disturbed cooling output value to the preset cooling target output value is processed to obtain the corresponding first ratio.

[0235] The second evaluation unit is used to process the ratio of the disturbed heating output value to the preset heating target output value to obtain the corresponding second ratio.

[0236] The minimum value between the first ratio and the second ratio is selected as the operating condition adaptation margin, and the disturbance recovery time, operating condition adaptation margin and protection action evaluation are used as disturbance robustness test data.

[0237] Furthermore, evaluation module 304 includes:

[0238] The seventh test submodule is used to conduct long-term continuous reliability tests on the waste heat utilization device of the converter valve to obtain the initial refrigeration waste heat utilization coefficient, the termination refrigeration waste heat utilization coefficient, the initial heating waste heat utilization coefficient, the termination heating waste heat utilization coefficient, the initial combined cooling and heating energy efficiency ratio, the termination combined cooling and heating energy efficiency ratio, and the reliability test records.

[0239] The difference between the initial refrigeration waste heat utilization coefficient and the final refrigeration waste heat utilization coefficient is processed to obtain the third difference value. The third difference value is then compared with the initial refrigeration waste heat utilization coefficient to obtain the corresponding first attenuation rate.

[0240] The difference between the initial heating waste heat utilization coefficient and the final heating waste heat utilization coefficient is processed to obtain the fourth difference value. The fourth difference value is then compared with the initial heating waste heat utilization coefficient to obtain the corresponding second attenuation rate.

[0241] The difference between the initial combined cooling and heating energy efficiency ratio and the final combined cooling and heating energy efficiency ratio is processed to obtain the fifth difference value. The fifth difference value is then compared with the initial combined cooling and heating energy efficiency ratio to obtain the corresponding third decay rate.

[0242] The test evaluation submodule is used to take the test as qualified when the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first decay rate, the second decay rate, the third decay rate, and the reliability test record meet the preset qualification conditions.

[0243] If the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record do not meet the qualification conditions, then the test failure shall be regarded as the corresponding test result.

[0244] Please see Figure 4 , Figure 4 This is a structural block diagram of an electronic device provided in Embodiment 4 of the present invention.

[0245] An electronic device according to an embodiment of the present invention includes: a memory 401 and a processor 402. The memory 401 stores a computer program. When the computer program is executed by the processor 402, the processor 402 executes the test method of the converter valve waste heat utilization device as described in any of the above embodiments.

[0246] Memory 401 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read-Only Memory), EPROM, hard disk, or ROM. Memory 401 has storage space 403 for program code 413 for performing any of the method steps described above. For example, storage space 403 for program code may include individual program codes 413 for implementing the various steps in the methods described above. This program code may be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, CDs, memory cards, or floppy disks. The program code may be compressed, for example, in a suitable form. When run by a computing processing device, this code causes the computing processing device to perform the various steps in the methods described above. This program code may be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, CDs, memory cards, or floppy disks. The program code may be compressed, for example, in a suitable form. When these codes are run by a computing device, the computing device causes the computing device to perform the various steps in the test method for the converter valve waste heat utilization device described above.

[0247] Embodiment 5 of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the test method for the waste heat recovery device of the converter valve as described in any of the above embodiments.

[0248] Embodiment 6 of the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer performs the test method for the waste heat utilization device of the converter valve as described in any of the above embodiments.

[0249] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0250] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0251] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0252] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0253] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0254] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test method for a waste heat recovery device for a converter valve, characterized in that, include: Multiple heat source boundary data of the converter valve waste heat utilization device are obtained, and the heating decoupling test of the converter valve waste heat utilization device is performed using each heat source boundary data to obtain the corresponding heating subsystem performance data. The waste heat recovery device of the converter valve is subjected to refrigeration decoupling test using the boundary data of each heat source to obtain the corresponding refrigeration subsystem performance data. Based on the heat source boundary data corresponding to the preset rated load, the waste heat utilization device of the converter valve is subjected to combined cooling and heating test and disturbance robustness test to obtain the corresponding coupled operating condition performance data and disturbance robustness test data. The performance of the converter valve waste heat recovery device is evaluated based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating conditions, and the disturbance robustness test data, and the corresponding test results are obtained.

2. The test method for the waste heat recovery device of the converter valve according to claim 1, characterized in that, The step of performing a heating decoupling test on the waste heat recovery device of the converter valve using the boundary data of each heat source to obtain the corresponding heating subsystem performance data includes: Based on the boundary data of each heat source, the waste heat utilization device of the converter valve in the heating mode is tested in sequence to obtain multiple heating decoupling operating condition data. Each of the aforementioned heating decoupling conditions is input into a preset heating output function to obtain multiple heating output values; Each of the aforementioned heating output values ​​is compared with the total electric power of the heat pump in the corresponding heating decoupling operating condition data to obtain multiple heat pump heating performance coefficients. Each of the aforementioned heating output values ​​is compared with the corresponding total power of the heat pump to obtain multiple first differences; Each of the first differences is compared with the recovered waste heat in the corresponding heat source boundary data to obtain multiple first waste heat grade utilization coefficients. The heating decoupling operating condition data, the heating output value, the heating performance coefficient of the heat pump, and the first waste heat quality utilization coefficient are used as the corresponding heating subsystem performance data.

3. The test method for the waste heat recovery device of the converter valve according to claim 1, characterized in that, The step of performing a refrigeration decoupling test on the waste heat recovery device of the converter valve using the boundary data of each heat source to obtain the corresponding refrigeration subsystem performance data includes: Based on the boundary data of each heat source, the waste heat utilization device of the converter valve in the cooling mode is tested in sequence to obtain multiple cooling decoupling condition data. Each of the aforementioned cooling decoupling operating condition data is input into a preset cooling output function to obtain multiple cooling output values; Each of the aforementioned refrigeration output values ​​is compared with the total power of the cold pump in the corresponding refrigeration decoupling operating condition data to obtain multiple lithium bromide thermodynamic coefficients. Each of the aforementioned refrigeration output values ​​is compared with the corresponding total power of the cold pump to obtain multiple second differences; Each of the second differences is compared with the recovered waste heat in the corresponding heat source boundary data to obtain multiple second waste heat grade utilization coefficients. The refrigeration decoupling operating condition data, the refrigeration output value, the lithium bromide thermodynamic coefficient, and the second waste heat utilization coefficient are used as the corresponding refrigeration subsystem performance data.

4. The test method for the waste heat recovery device of the converter valve according to claim 1, characterized in that, The step of conducting combined cooling and heating tests and disturbance robustness tests on the converter valve waste heat utilization device based on the heat source boundary data corresponding to the preset rated load, and obtaining the corresponding coupled operating condition performance data and disturbance robustness test data, includes: The waste heat recovery device of the converter valve under the combined cooling and heating mode was tested using the heat source boundary data corresponding to the preset rated load, and the corresponding coupled operating condition data was obtained. The cooling output value and heating output value in the coupled operating condition data are summed to obtain the corresponding total effective output value. The ratio of the total effective output value to the total input power in the coupled operating condition data is processed to obtain the corresponding combined cooling and heating energy efficiency ratio. The coupled operating condition data is input into a preset coupled heat loss function to obtain the corresponding coupled heat loss ratio, and the coupled operating condition data, the total effective output value, the combined cooling and heating energy efficiency ratio and the coupled heat loss ratio are used as the corresponding coupled operating condition performance data. The disturbance robustness test of the converter valve waste heat utilization device under the combined cooling and heating mode was carried out using the heat source boundary data corresponding to the preset rated load and the pre-acquired simulated heat source response time. The corresponding disturbance condition data were obtained. The robustness of the disturbance condition data and the response time of the simulated heat source are evaluated to obtain the corresponding disturbance robustness test data.

5. The test method for the waste heat recovery device of the converter valve according to claim 4, characterized in that, The disturbance condition data includes total regression time, protection action evaluation, disturbance cooling output value, and disturbance heating output value. The step of performing a robustness assessment on the disturbance condition data and the response time of the simulated heat source to obtain the corresponding disturbance robustness test data includes: The difference between the total regression time and the response time of the simulated heat source is processed to obtain the corresponding disturbance recovery time. The ratio of the disturbed cooling output value to the preset cooling target output value is processed to obtain the corresponding first ratio. The ratio of the disturbed heating output value to the preset heating target output value is processed to obtain the corresponding second ratio. The minimum value between the first ratio and the second ratio is selected as the operating condition adaptation margin, and the disturbance recovery time, the operating condition adaptation margin, and the protection action evaluation are used as disturbance robustness test data.

6. The test method for the waste heat recovery device of the converter valve according to claim 1, characterized in that, The step of evaluating the performance of the converter valve waste heat recovery device based on the performance data of the heating subsystem, the performance data of the refrigeration subsystem, the performance data of the coupled operating condition, and the disturbance robustness test data, and obtaining the corresponding test results, includes: The waste heat utilization device of the converter valve was subjected to a long-term continuous reliability test to obtain the initial refrigeration waste heat utilization coefficient, the termination refrigeration waste heat utilization coefficient, the initial heating waste heat utilization coefficient, the termination heating waste heat utilization coefficient, the initial combined cooling and heating energy efficiency ratio, the termination combined cooling and heating energy efficiency ratio, and the reliability test records. The difference between the initial refrigeration waste heat utilization coefficient and the final refrigeration waste heat utilization coefficient is processed to obtain a third difference value, and the third difference value is compared with the initial refrigeration waste heat utilization coefficient to obtain the corresponding first attenuation rate. The difference between the initial heating waste heat utilization coefficient and the final heating waste heat utilization coefficient is processed to obtain a fourth difference value. The fourth difference value is then compared with the initial heating waste heat utilization coefficient to obtain the corresponding second attenuation rate. The difference between the initial combined cooling and heating energy efficiency ratio and the final combined cooling and heating energy efficiency ratio is processed to obtain the fifth difference value. The fifth difference value is then compared with the initial combined cooling and heating energy efficiency ratio to obtain the corresponding third attenuation rate. When the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record meet the preset qualification conditions, the test qualification is taken as the corresponding test result. If the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating condition, the disturbance robustness test data, the first attenuation rate, the second attenuation rate, the third attenuation rate, and the reliability test record do not meet the qualification conditions, then the test failure shall be taken as the corresponding test result.

7. A testing system for a waste heat recovery device of a converter valve, characterized in that, include: The acquisition module is used to acquire multiple heat source boundary data of the converter valve waste heat utilization device, and to perform a heating decoupling test on the converter valve waste heat utilization device using each heat source boundary data to obtain the corresponding heating subsystem performance data. The first test module is used to perform a refrigeration decoupling test on the waste heat utilization device of the converter valve using the boundary data of each heat source, and to obtain the corresponding refrigeration subsystem performance data. The second test module is used to perform combined cooling and heating tests and disturbance robustness tests on the converter valve waste heat utilization device according to the heat source boundary data corresponding to the preset rated load, and obtain the corresponding coupled operating condition performance data and disturbance robustness test data. The evaluation module is used to evaluate the performance of the converter valve waste heat utilization device based on the performance data of the heating subsystem, the performance data of the cooling subsystem, the performance data of the coupled operating conditions, and the disturbance robustness test data, and obtain the corresponding test results.

8. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor causes the processor to perform the steps of the test method for the waste heat recovery device of the converter valve as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed, it implements the test method for the waste heat recovery device of the converter valve as described in any one of claims 1-6.

10. A computer program product, characterized in that, The computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, wherein when the program instructions are executed by a computer, the computer performs the test method for the waste heat recovery device of the converter valve as described in any one of claims 1-6.

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