CN-121778805-B - Multi-fault diagnosis method and equipment for integrated hair collector

CN121778805BCN 121778805 BCN121778805 BCN 121778805BCN-121778805-B

Abstract

A multi-fault diagnosis method and equipment for an integrated hair collector relate to the technical field of swimming pool water treatment, wherein the method comprises the steps of collecting negative pressures P1, P2, P3 and P4 of a water inlet, a hair filtering section outlet, an ultraviolet disinfection section inlet and outlet in real time, calculating a filtering pressure drop delta P1 and a disinfection pressure drop delta P2, firstly judging whether the P1 is smaller than a safety threshold value to trigger adsorption-prevention emergency stop, if not, accurately distinguishing and diagnosing blocking of the hair filtering section or blocking faults inside the ultraviolet disinfection section based on comparison of the delta P1 and the delta P2 with respective cleaning reference values, and if both are normal, judging the efficiency of ultraviolet lamp tubes based on radiation intensity. The device comprises a corresponding negative pressure sensor, a controller and an executing mechanism, wherein the ultraviolet disinfection section adopts an integrated built-in scraping type cleaning component. The intelligent recognition and directional maintenance of the multistage faults are realized, and the safety, the energy efficiency and the maintenance convenience are improved.

Inventors

SHI JIANPENG
WANG XIAOJUN
LIU CHUNSHENG

Assignees

广东联盛水环境工程有限公司

Dates

Publication Date: 20260508
Application Date: 20260205

Claims (7)

1. An integrated hair collector multi-fault diagnosis method is characterized by comprising the following steps: S1, collecting a first negative pressure P1 of a water inlet of a hair collector, a second negative pressure P2 of an outlet of a hair filtering section, a third negative pressure P3 of an inlet of an ultraviolet disinfection section and a fourth negative pressure P4 of an outlet of the ultraviolet disinfection section in real time; s2, respectively calculating a filtration pressure drop delta P1 and a disinfection pressure drop delta P2 based on the first negative pressure P1, the second negative pressure P2, the third negative pressure P3 and the fourth negative pressure P4 which are acquired currently; S3, judging whether an adsorption risk exists or not, wherein the adsorption risk judging condition is that whether the adsorption risk is smaller than a safety adsorption threshold Py1 or not is judged based on the instantaneous value of the first negative pressure P1, if yes, judging that the adsorption risk exists, triggering the highest emergency response, and if not, executing multi-fault diagnosis, wherein according to different results of the multi-fault diagnosis, outputting corresponding fault diagnosis codes and executing differentiated automatic response or maintenance prompt, and the specific steps of executing the multi-fault diagnosis comprise: S30, acquiring a first cleaning reference value delta P1 c of the filtration pressure drop delta P1 and a second cleaning reference value delta P2 c of the disinfection pressure drop delta P2; S31, judging whether the hair filter segment is blocked or not based on the ratio relation between the filter pressure drop delta P1 and the first cleaning reference value delta P1 c ; S32, if the hair filter section is not blocked, judging whether the ultraviolet disinfection section is blocked or not based on the ratio relation between the disinfection pressure drop delta P2 and the second cleaning reference value delta P2 c ; S33, judging the efficiency of the ultraviolet lamp tube based on the radiation intensity monitoring value of the ultraviolet disinfection section if the hair filtering section and the ultraviolet disinfection section are not blocked, wherein the calculation formulas of the filtering pressure drop delta P1 and the disinfection pressure drop delta P2 are respectively as follows: 、 The step of triggering the highest emergency response comprises the steps of sending a highest-level shutdown instruction to the circulating water pump, activating a site alarm at the same time, and locking the system to a safe state until manual reset, wherein the condition for judging that the hair filter segment is blocked is as follows: ; The system comprises a filter cartridge, a filter plug alarm, a first fault diagnosis code, a reinforced back flushing program or a prompt manual cleaning filter cartridge, wherein K1 is a first proportional coefficient which is larger than 1, when the condition is met, the system triggers the filter plug alarm, outputs the first fault diagnosis code, and executes the reinforced back flushing program or prompts the manual cleaning filter cartridge, wherein the condition for judging the plug of an ultraviolet disinfection section is as follows: ; when the condition is satisfied, the system triggers a disinfection section blocking alarm, outputs a second fault diagnosis code and automatically executes a built-in cleaning program of the ultraviolet disinfection section.
2. The method according to claim 1, wherein in the step S33, the condition for determining the performance degradation of the ultraviolet lamp is that the intensity value of the ultraviolet radiation monitored in real time is lower than a preset percentage threshold value of the rated intensity, and when the condition is satisfied, the system triggers a lamp maintenance alarm and outputs a third fault diagnosis code.
3. The integrated hair collector multi-fault diagnosis device is applied to the integrated hair collector multi-fault diagnosis method according to claim 2 and is characterized by comprising a data acquisition module, a data processing and diagnosis module, a control execution module and a man-machine interaction module, wherein the data acquisition module is used for acquiring the first negative pressure P1, the second negative pressure P2, the third negative pressure P3 and the fourth negative pressure P4 in real time, the data processing and diagnosis module is used for calculating the filtration pressure drop delta P1 and the disinfection pressure drop delta P2 and executing the adsorption risk judgment and multi-fault diagnosis, the control execution module is used for controlling the start, stop and action of a circulating water pump, an alarm, a blow-down valve and an ultraviolet disinfection section cleaning mechanism according to the output instruction of the data processing and diagnosis module, and the man-machine interaction module is used for displaying fault diagnosis codes and system running states and receiving artificial instructions.
4. The integrated hair-collector multi-fault diagnosis apparatus according to claim 3, wherein the data acquisition module comprises a first negative pressure sensor, a second negative pressure sensor, a third negative pressure sensor and a fourth negative pressure sensor, which are respectively installed at a hair collector water inlet, a hair filtering section outlet, an ultraviolet disinfection section inlet and an ultraviolet disinfection section outlet, and a radiation intensity sensor installed in the ultraviolet disinfection section, wherein the data processing and diagnosis module is a logic controller or an embedded microcontroller, and the safety adsorption threshold Py1, a first cleaning reference value Δp1 c , a second cleaning reference value Δp2 c , a first scaling factor K1 and a second scaling factor K2 are stored in the data processing and diagnosis module.
5. The integrated hair collector multi-fault diagnosis device according to claim 3, wherein the ultraviolet disinfection section cleaning mechanism comprises a disinfection module capable of being integrally inserted and pulled out, two ends of the disinfection module are respectively provided with a first water inlet and a first water outlet, the first water inlet is detachably connected with the hair filtering section outlet, the first water outlet is connected with the ultraviolet disinfection section outlet, the disinfection module comprises a sealed shell, a plurality of fine branch pipes are arranged in parallel in the sealed shell, two ends of each fine branch pipe are respectively communicated with the first water inlet and the first water outlet, an ultraviolet lamp tube is arranged in the center of each fine branch pipe, the ultraviolet lamp tube is integrally and fixedly arranged in the sealed shell, a cleaning assembly is correspondingly arranged on each fine branch pipe, the cleaning assembly comprises a scraping element, a linkage rod connected with the scraping element and a driving motor for driving the linkage rod to reciprocate along the axial direction of the fine branch pipe, the driving motor is connected with the control execution module in a signal manner, and cleaning instructions are received and the scraping element is driven to scrape attachments on the inner walls of the fine branch pipes.
6. The integrated hair-collector multi-fault diagnosis apparatus of claim 5, wherein each of the fine branch pipes further has a transparent section, and the transparent section is located at the periphery of the light emitting portion of the ultraviolet lamp tube, and each of the ultraviolet lamp tubes is further in signal connection with the radiation intensity sensor.
7. The integrated hair collector multi-fault diagnosis device according to claim 3, wherein the man-machine interaction module comprises a display screen, a status indicator light and an operation key, wherein the display screen is used for dynamically displaying the values of the first negative pressure P1, the second negative pressure P2, the third negative pressure P3 and the fourth negative pressure P4, and fault diagnosis codes and corresponding text maintenance guides in real time, the status indicator light is used for indicating the running state and the alarm level of a system, and the operation key is used for executing alarm confirmation, parameter checking and manual reset operation.

Description

Multi-fault diagnosis method and equipment for integrated hair collector Technical Field The invention relates to the technical field of swimming pool water treatment, in particular to a multi-fault diagnosis method and equipment for an integrated hair collector. Background In the traditional swimming pool water treatment system, the hair collector is used as a primary filtering unit, and the hair collector mainly has the function of physically trapping large-particle impurities such as hair, fibers and the like by virtue of a filter screen or a filter basket. However, the following deficiencies are prevalent in the prior art: First, traditional swimming pool hair gathering ware mainly relies on artifical periodic observation and clearance, has inefficiency, the untimely problem of response, when filth such as hair pile up too much, can lead to water pump load increase, energy consumption increase, probably causes the potential safety hazard to the swimming visitor because of the vacuum is too high even. Second, filter clogging condition determination mainly relies on manual periodic uncapping inspection or empirical estimation of run time, with response delays. The blockage degree cannot be accurately perceived in real time, and the water pump is easy to overload operation, the energy consumption is increased, or the filtration efficiency is reduced to influence the subsequent disinfection effect. Thirdly, to the risk of outlet absorption swimming passerby, the prior art adopts physical grid to carry out passive protection more, lacks initiative, based on real-time hydraulic condition's monitoring and emergent interrupt mechanism. There is still a serious safety risk in case of accidental blocking or failure of the grille. Fourth, especially in the equipment integrating disinfection function, after the ultraviolet disinfection module at its core is fouled or pollutes, often need professional use the instrument to carry out loaded down with trivial details dismantlement and chemical cleaning, maintenance cycle is long, with high costs, and probably influence sterile continuity and reliability, secondly some monitoring schemes that exist probably set up single pressure or flow sensor only, when system performance descends, can only send the general alarm of "system anomaly", can't accurately distinguish be that the leading filtration is blocked, disinfection unit runner is blocked or ultraviolet tube loses efficacy etc. specific trouble, brings the difficulty for maintaining. Disclosure of Invention In view of the above, the application provides a solution integrating filtering, disinfection, safety monitoring and intelligent diagnosis, which can realize real-time sensing of running states, accurate distinction of multiple types of faults, active prevention of risks and convenience in maintenance, and adopts the following technical scheme: an integrated hair collector multi-fault diagnosis method, comprising the steps of: S1, collecting a first negative pressure P1 of a water inlet of a hair collector, a second negative pressure P2 of an outlet of a hair filtering section, a third negative pressure P3 of an inlet of an ultraviolet disinfection section and a fourth negative pressure P4 of an outlet of the ultraviolet disinfection section in real time; s2, respectively calculating a filtration pressure drop delta P1 and a disinfection pressure drop delta P2 based on the first negative pressure P1, the second negative pressure P2, the third negative pressure P3 and the fourth negative pressure P4 which are acquired currently; S3, judging whether an adsorption risk exists or not, wherein the adsorption risk judging condition is that whether the adsorption risk is smaller than a safety adsorption threshold Py1 or not is judged based on the instantaneous value of the first negative pressure P1, if yes, judging that the adsorption risk exists, triggering the highest emergency response, and if not, executing multi-fault diagnosis, wherein according to different results of the multi-fault diagnosis, outputting corresponding fault diagnosis codes and executing differentiated automatic response or maintenance prompt, and the specific steps of executing the multi-fault diagnosis comprise: S30, acquiring a first cleaning reference value delta P1 c of the filtration pressure drop delta P1 and a second cleaning reference value delta P2 c of the disinfection pressure drop delta P2; S31, judging whether the hair filter segment is blocked or not based on the ratio relation between the filter pressure drop delta P1 and the first cleaning reference value delta P1 c; S32, if the hair filter section is not blocked, judging whether the ultraviolet disinfection section is blocked or not based on the ratio relation between the disinfection pressure drop delta P2 and the second cleaning reference value delta P2 c; and S33, judging the efficiency of the ultraviolet lamp tube based on the radiation intensity monitoring value of the ult