CN-121977991-A - Particle counting calibration system, method, equipment and storage medium

CN121977991ACN 121977991 ACN121977991 ACN 121977991ACN-121977991-A

Abstract

The embodiment of the application relates to the technical field of measurement and discloses a particle counting calibration system, a method, equipment and a storage medium, wherein the system comprises a sampling pipeline; the device comprises a particle counter, a first calibration device, a second calibration device and a controller, wherein the particle counter is used for detecting the number concentration of particles in liquid of a sampling pipeline, the first calibration device is used for detecting the number concentration of particles in liquid output by the particle counter, the second calibration device is used for detecting the number concentration of particles in liquid conveyed by the sampling pipeline, and the controller is used for receiving data acquired by the particle counter, the first calibration device and the second calibration device and calibrating the particle counter. The calibration system disclosed by the application solves the problem that the particle counter is difficult to calibrate on line, and realizes the accurate calibration of on-line particle detection, so that the particle counter can be calibrated automatically without interrupting the detection process.

Inventors

WANG YANMING
CUI LIMING
WANG JIAWEI
LI XIN
ZHANG YONGSHENG
GUO WEI
ZHANG QIUSHENG

Assignees

中国神华能源股份有限公司
华北电力大学
国家能源集团新能源技术研究院有限公司

Dates

Publication Date: 20260505
Application Date: 20260115

Claims (10)

1. A particulate matter count calibration system, comprising: a sampling line for delivering a liquid containing particulate matter; the particle counter is connected with the sampling pipeline and is used for detecting the number concentration of particles in liquid of the sampling pipeline; the first calibration device is connected with the output end of the particle counter and is used for detecting the number concentration of particles in the liquid output by the particle counter; The second calibration device is connected with the sampling pipeline and is used for detecting the quantity concentration of particulate matters in the liquid conveyed by the sampling pipeline; And the controller is connected with the particle counter, the first calibration device and the second calibration device and is used for receiving data acquired by the particle counter, the first calibration device and the second calibration device and calibrating the particle counter.
2. The particle counting and calibrating system according to claim 1, wherein the liquid conveying channels of the particle counter, the first calibrating device and the second calibrating device are respectively provided with a water pump, the water pumps are used for pumping the liquid into the particle counter, the first calibrating device and the second calibrating device at a constant flow rate, and the volume of the liquid input by the second calibrating device is consistent with the volume of the liquid input by the particle counter.
3. The particle counting and calibrating system according to claim 1, wherein the first calibrating device and the second calibrating device comprise a conveying channel, and a liquid inlet pump, a calibrating unit, a waste liquid storage chamber and a liquid discharge pump which are sequentially arranged along the conveying direction of the conveying channel, and the calibrating unit is used for detecting the number concentration of the particles in the input liquid.
4. A particulate matter counting calibration system according to claim 3, wherein the calibration unit comprises a heating vaporizer, a charge emitter and a particulate matter striking plate arranged in this order along the conveying direction of the conveying channel; The heating vaporizer is used for heating and vaporizing input liquid, the input end of the heating vaporizer is connected with a dilution gas injection port for inputting dilution gas, the charge emitter is used for emitting charges to particles so that the particles are accompanied with the charges to strike the particle striking plate, the particle striking plate is connected with a current amplifier for amplifying current released by the striking of the particles, and the current amplifier and the charge emitter are both connected to the controller so as to send collected data to the controller.
5. The particle count calibration system of claim 4, wherein the controller is configured to determine the particle count concentration from the collected charge data and current data, and wherein the calculation formula for the controller to evaluate the particle count concentration for the calibration unit comprises: ; Where N i represents the concentration of the amount of particulate matter, I i represents the current, Q i represents the charge, and Q represents the calculated flow rate of the liquid and the diluent gas to be fed.
6. A particle count calibration system as claimed in claim 4 wherein the particle impact plate includes a plurality of stages of particle impact plates arranged in series along the transport path.
7. The particulate matter counting calibration system according to claim 4, wherein an insulating layer for insulating the internal transport passage is provided in the calibration unit.
8. The particulate matter counting calibration system according to claim 4, wherein a first inspection port is provided on one side of the first calibration device and one side of the second calibration device, and a second inspection port corresponding to the first inspection port in position is provided on the calibration unit for observing the status of the equipment or the inspection and replacement of the components.
9. The particle counting and calibrating method is characterized by comprising the following steps of: Inputting a constant flow of a liquid containing particulate matter to the particulate matter counter and to a second calibration device in response to a particulate matter count enable signal; Acquiring first detection data fed back by the particle counter, second detection data fed back by the first calibration device and third detection data fed back by the third calibration device; determining a first particle quantity concentration detected by the particle counter, a second particle quantity concentration detected by the first calibration device and a third particle quantity concentration detected by the second calibration device according to the first, second and third detection data respectively; and comparing and analyzing the first particle quantity concentration, the second particle quantity concentration and the third particle quantity concentration to obtain a comparison and analysis result, and calibrating the particle counter according to the comparison and analysis result.
10. An electronic device, comprising: at least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the particle count calibration method of any one of claims 9.

Description

Particle counting calibration system, method, equipment and storage medium Technical Field The embodiment of the invention relates to the technical field of measurement, in particular to a particle counting calibration system, a method, equipment and a storage medium. Background Most of the existing methods for calibrating particles in liquid are used for manufacturing particles with standard diameters, and standard particles with known concentration and diameter are put into a particle counter for calibration before the particle counter starts to detect. Although the existing calibration method for putting standard particulate matters can achieve the calibration effect on the particulate matters counter, obvious defects exist. On the one hand, the method is only suitable for offline detection of sampled liquid and cannot realize real-time calibration on the particles running online for a long time because standard particles are required to be calibrated before the particle counter is used, so that the continuity of online detection is very affected by the existing method, and on the other hand, if the existing method is used for online particle model calibration, the steps are very complicated, extra particles are required to be introduced into a liquid sample, an installed system is required to be disassembled, and the labor cost introduced in the continuous detection process is high. Disclosure of Invention The invention aims to at least provide a particle counting calibration system, a method, equipment and a storage medium, which at least can solve the problem that the particle counter is difficult to calibrate on line, and at least can achieve the accurate calibration of on-line particle detection, thereby achieving the purposes of not interrupting the detection process and automatically calibrating the particle counter. To solve the above-mentioned technical problem, at least one embodiment of the present application provides a particulate matter count calibration system, including: a sampling line for delivering a liquid containing particulate matter; the particle counter is connected with the sampling pipeline and is used for detecting the number concentration of particles in liquid of the sampling pipeline; the first calibration device is connected with the output end of the particle counter and is used for detecting the number concentration of particles in the liquid output by the particle counter; The second calibration device is connected with the sampling pipeline and is used for detecting the quantity concentration of particulate matters in the liquid conveyed by the sampling pipeline; And the controller is connected with the particle counter, the first calibration device and the second calibration device and is used for receiving data acquired by the particle counter, the first calibration device and the second calibration device and calibrating the particle counter. At least one embodiment of the application also provides a particle counting calibration method, which comprises the following steps: Inputting a constant flow of a liquid containing particulate matter to the particulate matter counter and to a second calibration device in response to a particulate matter count enable signal; Acquiring first detection data fed back by the particle counter, second detection data fed back by the first calibration device and third detection data fed back by the third calibration device; determining a first particle quantity concentration detected by the particle counter, a second particle quantity concentration detected by the first calibration device and a third particle quantity concentration detected by the second calibration device according to the first, second and third detection data respectively; and comparing and analyzing the first particle quantity concentration, the second particle quantity concentration and the third particle quantity concentration to obtain a comparison and analysis result, and calibrating the particle counter according to the comparison and analysis result. At least one embodiment of the application also provides an electronic device comprising at least one processor and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executable by the at least one processor to enable the at least one processor to perform the particle count calibration method described above. At least one embodiment of the present application also provides a computer readable storage medium storing a computer program, where the computer program is executed by a processor to implement the above-mentioned particle count calibration method. According to the particle counting calibration system, the method, the equipment and the storage medium provided by the embodiment of the application, the liquid containing particles is conveyed into the particle counter for detection, so that the