Method for testing and evaluating performance of wet dust collector

Abstract

The application discloses a kind of performance test and evaluation method of wet dust collector, selects dust removal efficiency η, specific energy consumption φ And dust wettability ξ As evaluation parameter, define wet dust collector comprehensive quality factor, and comprehensively consider the interrelation between dust removal efficiency η, specific energy consumption φ And dust wettability ξ Calculation obtains wet dust collector comprehensive quality factor, for evaluating the comprehensive performance of wet dust collector;Then select different wet dust collector under the same environmental conditions and the same wet dust collector under different environmental conditions are respectively carried out performance test, so not only can the performance ordering of different wet dust collector under the same conditions be obtained, but also the performance ordering of the same wet dust collector under different environmental conditions can be obtained, which is convenient for subsequent specific environmental conditions to select corresponding wet dust collector, and targeted optimization of wet dust collector according to the evaluation result.

Description

Technical Field

[0001] This invention belongs to the field of dust collector performance testing technology, specifically a method for performance testing and evaluation of wet dust collectors. Background Technology

[0002] With the acceleration of industrialization, air pollution has become increasingly severe, especially the emission of particulate matter (such as PM10 and PM2.5), which has had a serious impact on the environment and human health. Particulate matter not only reduces visibility but can also cause various health problems such as respiratory and cardiovascular diseases, making it a global concern. Therefore, developing efficient air purification equipment to control air pollution is particularly important.

[0003] Wet scrubbers, as a widely used air purification device, separate dust from gas by bringing dust-laden gas into close contact with a liquid (usually water). The particles are captured through inertial collisions or other forces between the water droplets and the gas. Currently, there are many types of wet scrubbers, including gravity spray wet scrubbers, cyclone wet scrubbers, self-excited wet scrubbers, packed bed wet scrubbers, foam wet scrubbers, and Venturi wet scrubbers. However, due to differences in their working principles and structures, different types of wet scrubbers exhibit significant performance variations in practical applications, and different scrubbers are more suitable for certain specific environmental conditions. This presents a significant challenge to the scientific selection and objective evaluation of the equipment.

[0004] In the selection of wet scrubbers, a comprehensive and accurate performance evaluation is crucial. Current technologies primarily rely on single indicators such as dust removal efficiency η and energy consumption P for performance evaluation. Traditional methods and evaluation systems often suffer from a technical bias: they consider dust removal efficiency η to be an isolated, inherent equipment attribute, neglecting the profound influence it receives under actual operating conditions from factors such as airflow and the nature of the processed material (dust wettability).

[0005] Specifically, existing evaluation methods still have the following problems:

[0006] (1) Ignoring the systematic bias of the dynamic influence of air volume: Traditional methods test efficiency under a fixed air volume and treat it as a constant.

[0007] (2) Neglecting the wettability of dust leads to distorted evaluation: The existing evaluation system implicitly assumes that all dust has the same wettability, which is obviously inconsistent with the facts.

[0008] (3) Limited evaluation dimensions and lack of comprehensive quantification: Due to the absence of the two core factors mentioned above, the traditional single or dual-indicator (efficiency, energy consumption) evaluation system is incomplete and flawed. It cannot objectively reflect the true and comprehensive performance of wet scrubbers under different air volumes and for handling different types of dust on a unified and fair scale. Consequently, performance data from different sources are not comparable, equipment selection relies on experience rather than scientific data, and ultimately, it is impossible to accurately evaluate the performance of wet scrubbers under specific environmental conditions. Summary of the Invention

[0009] To address the problems existing in the prior art, this invention provides a method for performance testing and evaluation of wet scrubbers. The method uses a comprehensive quality factor and considers the interrelationships between dust removal efficiency η, specific energy consumption φ, and dust wettability ξ to evaluate the performance of wet scrubbers. This method not only ranks the performance of different wet scrubbers under the same conditions but also ranks the performance of the same wet scrubber under different environmental conditions, facilitating the selection of the appropriate wet scrubber for specific environmental conditions.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is: a method for performance testing and evaluation of a wet dust collector, comprising the following steps:

[0011] Step 1: Select evaluation parameters: Select dust removal efficiency η, specific energy consumption φ, and dust wettability ξ as evaluation parameters. The dust removal efficiency η is calculated by the dust concentration entering the wet scrubber and the dust concentration leaving the scrubber; the specific energy consumption φ is the ratio of energy consumption P to the processing air volume Q; the dust wettability ξ is quantified by the contact angle or wetting velocity and is used to characterize the difference in wettability.

[0012] Step 2: Establish comprehensive evaluation indicators: Define a comprehensive quality factor for wet dust collectors, and calculate the comprehensive quality factor by comprehensively considering the interrelationship between dust removal efficiency η, specific energy consumption φ, and dust wettability ξ. This factor is used to evaluate the overall performance of wet dust collectors. The specific formula is as follows:

[0013]

[0014] In the formula: WSCQF is the comprehensive quality factor of wet scrubber, m³ / kW·h; η is the dust removal efficiency; φ is the specific energy consumption; ξ is the wettability of dust. As can be seen from the above formula, the higher the dust removal efficiency, the lower the specific energy consumption, and the worse the wettability of particulate matter, the higher the value of WSCQF, which indicates that the performance of wet scrubber is superior.

[0015] Step 3: Performance testing of wet dust collectors: Select different wet dust collectors and conduct performance tests under the same environmental conditions. Calculate the dust removal efficiency η, specific energy consumption φ, and dust wettability ξ of different wet dust collectors in the manner described in Step 1.

[0016] Step 4: Performance evaluation of different wet scrubbers under the same environmental conditions: The data obtained from each wet scrubber in Step 3 are calculated using the formula in Step 2 to obtain the WSCQF value corresponding to different wet scrubbers. The larger the WSCQF value, the better the performance of the wet scrubber. The values ​​are arranged in descending order to obtain the performance ranking of different wet scrubbers under the same environmental conditions.

[0017] Step 5: Performance evaluation of the same wet scrubber under different environmental conditions: Repeat steps 3 and 4 for the same wet scrubber under environmental conditions with different dust particle sizes, different ventilation volumes, and different hygroscopic dust to obtain the WSCQF value of the same wet scrubber under different environmental conditions. Arrange the values ​​in descending order to obtain the performance ranking of the same wet scrubber under different environmental conditions.

[0018] Furthermore, the dust removal efficiency η is used to reflect the basic collection capacity of the dust collector, and the specific formula is as follows:

[0019]

[0020] In the formula: η is the purification efficiency, %; c1 is the inlet dust concentration, μg / m³. 3 c2 represents the outlet dust concentration, in μg / m³. 3 .

[0021] Furthermore, the specific energy consumption φ is used to characterize the energy consumption level per unit air volume, and the specific formula is as follows:

[0022]

[0023] In the formula: φ is the specific energy consumption, kWh / m³ 3 P represents equipment energy consumption (kW); Q represents dust collector air volume (m³). 3 / h.

[0024] Furthermore, the dust wettability ξ is used to quantify the adhesion ability of dust to liquids and correct for efficiency deviations caused by differences in dust properties. The specific formula is as follows:

[0025]

[0026] In the formula: ξ is a dimensionless parameter of dust wettability, that is, the ratio of the actual measured value of dust wettability to the critical values ​​for hydrophilicity and hydrophobicity. The larger the value of ξ, the worse the dust wettability; θ act It is the actual measured value of the contact angle; θ cri It is the critical value of the contact angle; u act It is the actual measured value of the wetting rate; u cri It is the critical value of the wetting rate.

[0027] Furthermore, it also includes step six: comparing and analyzing the results obtained in step five and step four, so as to obtain the wet dust collector with the optimal performance under different environmental conditions.

[0028] The core principle of this invention is as follows: Prior to this application, the existing technical bias in the field was that dust removal efficiency η was considered an inherent attribute of dust removal equipment; however, the inventors of this application, through in-depth research, overturned this understanding and proved that the performance of a dust collector is a dependent variable jointly determined by the equipment's dust removal efficiency η, specific energy consumption φ, and dust wettability ξ, as specifically explained below:

[0029] 1. The inventors of this application have discovered that the processing air volume Q is a key variable causing the dynamic change in dust removal efficiency η. In practical industrial applications, especially when handling large volumes of dust-laden airflow, the shortened gas-liquid contact time and changes in the flow field distribution often lead to a significant decrease in dust removal efficiency η. Existing evaluation systems generally lack normalization processing for air volume factors, resulting in a serious disconnect between evaluation results and actual operating effects. This fails to accurately reflect the performance degradation of equipment under high air volume conditions, leading to problems such as undersized equipment selection and insufficient purification capacity.

[0030] 2. The inventors of this application have discovered that dust wettability ξ (quantified by contact angle or wetting velocity) is one of the fundamental physicochemical factors determining collisional collection efficiency. For hydrophobic dust (such as carbon black and certain polymer dusts), because they are difficult to wet and capture by water droplets, their actual dust removal efficiency is much lower than that of hydrophilic dust (such as quartz powder and cement dust), even in the same equipment. Traditional methods completely ignore this key physical property parameter, leading to an overestimation of the performance of wet scrubbers in handling complex dusts (especially hydrophobic dust) in actual industrial applications when testing with easily wettable dust. This invention is based on the inventors' research findings. By setting a comprehensive quality factor (WSCQF) for wet scrubbers and comprehensively considering the relationship between dust removal efficiency η, specific energy consumption φ, and dust wettability ξ, a calculation formula is constructed, thereby forming a unified evaluation standard. The higher the WSCQF value, the better the comprehensive performance of the wet scrubber.

[0031] Compared with existing technologies, this invention adopts two key dimensions—air volume (characterized by specific energy consumption φ) and dust wettability ξ—and constructs a comprehensive quality factor WSCQF, which has the following advantages:

[0032] 1. This invention establishes a formula for calculating the Comprehensive Quality Factor (WSCQF) based on the interrelationship between dust removal efficiency η, specific energy consumption φ, and dust wettability ξ. The formula has the following characteristics: Mechanism-driven: This formula accurately models the inherent, nonlinear physical coupling relationship between efficiency, wettability, and energy consumption, reflecting the true "synergistic effect" and "weakest link effect." Fairness: This formula prevents a superior parameter from masking other inferior parameters, ensuring the objectivity and impartiality of the evaluation results, especially exposing the performance shortcomings of equipment under extreme conditions (high airflow, hydrophobic dust). Intuitive and clear: This formula generates a comprehensive index with clear physical meaning (m³ / kWh), facilitating understanding and cross-equipment comparison.

[0033] 2. The method of the present invention is applicable to various wet dust collectors such as gravity spray, cyclone, and venturi. For the first time, it provides a "three-dimensional" performance evaluation standard that simultaneously considers equipment, operation, and physical properties, solving the long-standing dilemma of data confusion and inconsistent evaluation systems.

[0034] 3. The evaluation method provided by this invention solves key technical problems that have long been neglected in the prior art, namely the dynamic influence of air volume and the difference in dust wettability. It successfully eliminates the systematic bias of the traditional evaluation system and obtains more objective, scientific and reasonable performance evaluation results. It has outstanding substantial technical and economic value for the scientific selection and optimized operation of wet dust collectors. Attached Figure Description

[0035] Figure 1 This is a diagram illustrating the evaluation system of the comprehensive quality factor of the wet dust collector in this invention.

[0036] Figure 2 This is the performance evaluation result of a water-storage wet dust collector under different dust particle size conditions, using the method of the embodiments of the present invention in the effect verification.

[0037] Figure 3 The results are the performance evaluation results of different wet dust collectors using the embodiments of the present invention and other existing evaluation methods in the effect verification.

[0038] Among them, (a) CQF evaluation method; (b) CQFξ evaluation method; (c) CQFφ evaluation method; (d) evaluation method of the present invention embodiment. Detailed Implementation

[0039] The present invention will be further described below.

[0040] like Figure 1 As shown, the present invention includes the following steps:

[0041] Step 1: Select Evaluation Parameters: Select dust removal efficiency η, specific energy consumption φ, and dust wettability ξ as evaluation parameters. The dust removal efficiency η is calculated using the dust concentration entering the wet scrubber and the dust concentration exiting the scrubber. It reflects the basic collection capacity of the scrubber. The specific formula is as follows:

[0042]

[0043] In the formula: η is the purification efficiency, %; c1 is the inlet dust concentration, μg / m³. 3 c2 represents the outlet dust concentration, in μg / m³. 3 .

[0044] Specific energy consumption φ is the ratio of energy consumption P to the processed air volume Q, used to characterize the energy consumption level per unit air volume. The specific formula is as follows:

[0045]

[0046] In the formula: φ is the specific energy consumption, kWh / m³ 3 P represents equipment energy consumption (kW); Q represents dust collector air volume (m³). 3 / h.

[0047] Dust wettability ξ is quantified by contact angle or wetting velocity and is used to quantify the adhesion ability of dust to liquid, correcting for efficiency deviations caused by differences in dust properties. The specific formula is as follows:

[0048]

[0049] In the formula: ξ is a dimensionless parameter of dust wettability, that is, the ratio of the actual measured value of dust wettability to the critical values ​​for hydrophilicity and hydrophobicity. The larger the value of ξ, the worse the dust wettability; θ act It is the actual measured value of the contact angle; θ cri This is the critical value of the contact angle; in this embodiment, it is taken as 90°. act It is the actual measured value of the wetting rate; u cri This is the critical value for the wetting rate; in this embodiment, it is taken as 2.5 mm / min.

[0050] Step 2: Establish comprehensive evaluation indicators: Define a comprehensive quality factor for wet dust collectors, and calculate the comprehensive quality factor by comprehensively considering the interrelationship between dust removal efficiency η, specific energy consumption φ, and dust wettability ξ. This factor is used to evaluate the overall performance of wet dust collectors. The specific formula is as follows:

[0051]

[0052] In the formula: WSCQF is the comprehensive quality factor of wet scrubber, m³ / kW·h; η is the dust removal efficiency; φ is the specific energy consumption; ξ is the wettability of dust. As can be seen from the above formula, the higher the dust removal efficiency, the lower the specific energy consumption, and the worse the wettability of particulate matter, the higher the value of WSCQF, which indicates that the performance of wet scrubber is superior.

[0053] The relationships between the parameters in the above formulas are explained below:

[0054] ① In wet dust removal processes, efficiency η, energy consumption φ, and wettability ξ are not independent of each other, but rather have a profound physical coupling relationship:

[0055] The relationship between efficiency η and wettability ξ: Dust removal efficiency is highly dependent on the wettability of the dust. For hydrophilic dust (small ξ value), water droplets are more likely to capture particles, resulting in a higher dust removal efficiency η. For hydrophobic dust (large ξ value), the dust removal efficiency η of the same equipment will decrease significantly. This is a "synergistic" or "coupled" relationship, rather than an "independent contribution" relationship. A highly efficient wet scrubber will experience a significant reduction in overall performance when encountering dust that is extremely difficult to wet.

[0056] The relationship between efficiency η and specific energy consumption φ: Specific energy consumption φ itself includes air volume Q (φ=P / Q). Changes in air volume Q directly affect the residence time of airflow within the equipment, the degree of turbulence, and the gas-liquid contact efficiency, thus non-linearly affecting the dust removal efficiency η. Efficiency typically decreases at high air volumes. Therefore, η and φ are two indicators that cannot be considered separately.

[0057] ②η×ξ can be understood as "the corrected efficiency for the actual dust properties":

[0058] If the dust has extremely poor wettability (a large ξ value), but the measured efficiency η is very high, this product will amplify the value of high performance, indicating that the equipment still performs excellently when dealing with stubborn dust.

[0059] If the dust is easily wetted (the ξ value is very small), even if the efficiency η is very high, the product will be relatively small, objectively reflecting that the performance advantage of the equipment is not prominent.

[0060] This is similar to the "barrel effect," where the final overall performance depends on the shortest plank. Multiplication amplifies the negative impact of any weakest parameter (low η or low ξ value), truly reflecting the constraint relationship between one parameter and another in the real world.

[0061] ③ The physical meaning of the Comprehensive Quality Factor (WSCQF) of a wet scrubber is extremely clear: "the volume of gas that can be purified per unit of energy consumption." This is a typical comprehensive indicator of "performance-economy," and the higher the better. It is very intuitive and facilitates direct comparison between different devices.

[0062] However, if a weighted addition method is used, i.e., WSCQF=a·η+b·ξ-c·φ, where a, b, and c are weighting coefficients, the final result has chaotic dimensions (%+dimensionless+m³ / kWh), lacking a unified physical meaning and merely representing an abstract "score" whose numerical value is difficult to interpret directly. A high score for one parameter can easily compensate for a low score for another. For example, a device that processes hydrophilic dust (i.e., small ξ value) but has extremely high energy consumption (i.e., large φ value) might obtain a good overall score due to the high weighting of efficiency η, masking its fatal flaw of poor economic efficiency. The additive model fails to capture the nonlinear, coupled physical reality that "hydrophobic dust will cause high-efficiency equipment to fail."

[0063] ④ Specific energy consumption φ in the denominator: This means that the impact of energy consumption on overall performance is non-linear. Reducing energy consumption by half will directly double the WSCQF value. This accurately reflects the core idea of ​​pursuing "twice the result with half the effort" in engineering optimization—the benefits of reducing energy consumption are magnified exponentially. In addition, reducing energy consumption only linearly increases by a fixed fraction.

[0064] Efficiency η and wettability ξ at the molecular level: their improvement has a direct multiplicative effect on overall performance. This motivates us not only to improve nominal efficiency, but also to focus on the robustness of equipment in handling dust of different properties.

[0065] Step 3: Performance testing of wet dust collectors: Select different wet dust collectors and conduct performance tests under the same environmental conditions. Calculate the dust removal efficiency η, specific energy consumption φ, and dust wettability ξ of different wet dust collectors according to the method in Step 1. Before testing, obtain the dust particles in the corresponding environmental conditions and determine the contact angle or wetting velocity of the dust according to national standards, and then calculate the wettability parameter ξ.

[0066] Step 4: Performance evaluation of different wet scrubbers under the same environmental conditions: The data obtained from each wet scrubber in Step 3 are calculated using the formula in Step 2 to obtain the WSCQF value corresponding to different wet scrubbers. The larger the WSCQF value, the better the performance of the wet scrubber. The values ​​are arranged in descending order to obtain the performance ranking of different wet scrubbers under the same environmental conditions.

[0067] Step 5: Performance evaluation of the same wet scrubber under different environmental conditions: Repeat steps 3 and 4 for the same wet scrubber under environmental conditions with different dust particle sizes, different ventilation volumes, and different hygroscopic dust to obtain the WSCQF value of the same wet scrubber under different environmental conditions. Arrange the values ​​in descending order to obtain the performance ranking of the same wet scrubber under different environmental conditions.

[0068] Step Six: Compare and analyze the results obtained in Step Five and Step Four to obtain the optimal performance of the wet scrubber under different environmental conditions.

[0069] Effect verification:

[0070] 1. Select a water-storage wet scrubber and conduct industrial field tests under different dust particle size environmental conditions. Process the test results using the method described in this embodiment of the invention to obtain the WSCQF values ​​corresponding to different dust particle size environmental conditions and generate charts as follows. Figure 2 As shown in the figure, the WSCQF value gradually increases with increasing dust particle size, indicating that the dust collector performs better when handling larger particles. Subsequently, this water-storage wet scrubber was used in an environment with larger dust particles, and its dust removal effect was continuously monitored. Subsequent monitoring showed that it had a superior dust removal effect on larger dust particles, which also proves the accuracy of the performance evaluation of the same wet scrubber under different environmental conditions.

[0071] 2. The performance of different wet scrubbers was evaluated using multiple existing evaluation methods and the method of this invention, respectively:

[0072] The existing method is a relatively comprehensive quality factor CQF evaluation method, and two additional methods that modify the existing method are added, namely the CQFξ evaluation method and the CQFφ evaluation method;

[0073] The CQF evaluation method, specifically the formula, is as follows:

[0074]

[0075] In the formula, CQF is the relative comprehensive quality factor, η is the dust removal efficiency, and p is the energy consumption.

[0076] As can be seen from the above formula, for the same dust collector, when the processing air volume is 5000 and 12000 m³, respectively... 3 At a flow rate of [number] cubic meters per hour, the dust removal efficiency remains basically the same, but the power consumption increases with the increase in air volume. However, according to the above formula, the performance of the dust collector should decrease with the increase in air volume. This is clearly unscientific.

[0077] The CQFξ evaluation method, the specific formula is as follows:

[0078]

[0079] In the formula, CQF is the relative comprehensive quality factor, η is the dust removal efficiency, p is the energy consumption, and ξ is the dust wettability.

[0080] The CQFφ evaluation method, specifically the formula is:

[0081]

[0082] In the formula, CQF is the relative comprehensive quality factor, η is the dust removal efficiency, p is the energy consumption, and φ is the specific energy consumption.

[0083] The performance of centrifugal concentric cyclone dust collectors (CICCDC), wet filter mine wet dust collectors (WFDC), low-energy axial cyclone separators (WAFCS), and randomly selected wet dust collectors (thiswork) were evaluated using the three evaluation methods described above and the evaluation method of this invention, respectively. The comparisons were made using total particulate matter (TSP), PM10, and respirable particulate matter (RD) as indicators, as detailed below. Figure 3 And as shown in the table below;

[0084]

[0085] The performance of different types of wet scrubbers was evaluated using existing CQF evaluation methods, such as Figure 3 (a) Because CQF does not consider differences in air volume and dust wettability, the performance of different types of wet dust collectors varies greatly, especially for CICCDC and WFDC type mine wet dust collectors. The processing air volume of mine wet dust collectors is relatively large, and its impact on the evaluation results is particularly significant.

[0086] like Figure 3 b. When using the CQFξ evaluation method, which only incorporates dust wettability, as the evaluation criterion, the performance differences between different types of wet scrubbers are reduced. For example... Figure 3 c. When using the CQFφ evaluation method, which only incorporates airflow, as the evaluation criterion, the differences between different types of wet scrubbers are further reduced. The above evidence indicates that both dust wettability and the scrubber's processing airflow significantly affect the evaluation results. Therefore, by comprehensively considering both dust wettability and the scrubber's processing airflow on the basis of CQF, the bias of traditional evaluation factors can be effectively eliminated.

[0087] The table above demonstrates that this invention, by simultaneously introducing φ and ξ, does not simply superimpose parameters but generates a synergistic correction effect. This indicates that "airflow" and "wetting properties" are not independent parameters but rather mutually coupled, influencing efficiency. This successfully eliminates bias caused by a single factor, allowing equipment that was previously "underestimated" due to large airflow or hydrophobic dust to receive a fair evaluation. The performance evaluation results for different types of wet scrubbers are more objective, scientific, and reasonable, enabling performance comparisons to be conducted on a level playing field. Figure 3 d.

[0088] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for performance testing and evaluation of a wet dust collector, characterized in that, Includes the following steps: Step 1: Select evaluation parameters: Select dust removal efficiency η, specific energy consumption φ, and dust wettability ξ as evaluation parameters. The dust removal efficiency η is calculated by the dust concentration entering the wet scrubber and the dust concentration leaving the scrubber; the specific energy consumption φ is the ratio of energy consumption P to the processing air volume Q; the dust wettability ξ is quantified by the contact angle or wetting velocity and is used to characterize the difference in wettability. Step 2: Establish comprehensive evaluation indicators: Define a comprehensive quality factor for wet dust collectors, and calculate the comprehensive quality factor by comprehensively considering the interrelationship between dust removal efficiency η, specific energy consumption φ, and dust wettability ξ. This factor is used to evaluate the overall performance of wet dust collectors. The specific formula is as follows: In the formula: WSCQF is the comprehensive quality factor of the wet scrubber, m³ / kW·h; η is the dust removal efficiency; φ is the specific energy consumption; ξ is the dust wettability; Step 3: Performance testing of wet dust collectors: Select different wet dust collectors and conduct performance tests under the same environmental conditions. Calculate the dust removal efficiency η, specific energy consumption φ, and dust wettability ξ of different wet dust collectors in the manner described in Step 1. Step 4: Performance evaluation of different wet scrubbers under the same environmental conditions: The data obtained from each wet scrubber in Step 3 are calculated using the formula in Step 2 to obtain the WSCQF value corresponding to different wet scrubbers. The larger the WSCQF value, the better the performance of the wet scrubber. The values ​​are arranged in descending order to obtain the performance ranking of different wet scrubbers under the same environmental conditions. Step 5: Performance evaluation of the same wet scrubber under different environmental conditions: Repeat steps 3 and 4 for the same wet scrubber under environmental conditions with different dust particle sizes, different ventilation volumes, and different hygroscopic dust to obtain the WSCQF value of the same wet scrubber under different environmental conditions. Arrange the values ​​in descending order to obtain the performance ranking of the same wet scrubber under different environmental conditions.

2. The performance testing and evaluation method for the wet dust collector according to claim 1, characterized in that, The dust removal efficiency η is used to reflect the basic collection capacity of the dust collector, and the specific formula is: In the formula: η is the purification efficiency, %; c1 is the inlet dust concentration, μg / m³. 3 c2 represents the outlet dust concentration, in μg / m³. 3 .

3. The performance testing and evaluation method for the wet dust collector according to claim 1, characterized in that, The specific energy consumption φ is used to characterize the energy consumption level per unit air volume, and the specific formula is as follows: In the formula: φ is the specific energy consumption, kWh / m³ 3 P represents equipment energy consumption (kW); Q represents dust collector air volume (m³). 3 / h.

4. The performance testing and evaluation method for the wet dust collector according to claim 1, characterized in that, The dust wettability ξ is used to quantify the adhesion ability of dust to liquids and correct for efficiency deviations caused by differences in dust properties. The specific formula is as follows: In the formula: ξ is a dimensionless parameter of dust wettability, that is, the ratio of the actual measured value of dust wettability to the critical values ​​for hydrophilicity and hydrophobicity. The larger the value of ξ, the worse the dust wettability; θ act This is the actual measured value of the contact angle; θ cri It is the critical value of the contact angle; u act It is the actual measured value of the wetting rate; u cri It is the critical value of the wetting rate.

5. The performance testing and evaluation method for the wet dust collector according to claim 1, characterized in that, It also includes step six: comparing and analyzing the results obtained from step five and step four, so as to obtain the wet dust collector with the optimal performance under different environmental conditions.

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