Electronic pump with flow feedback

Abstract

The application relates to an electronic pump with flow feedback, and relates to the technical field of water pumps, which comprises a collection module, a judgment module and an alarm module, the collection module is used for obtaining flow a and sending the obtained flow a to the judgment module, the judgment module receives the flow a sent by the collection module and judges the flow a, when a falls into a judgment interval, a first-level signal is sent to the alarm module, when a is smaller than the minimum value of the judgment interval, a second-level signal is sent to the alarm module, the alarm module carries out first-level alarm prompting after receiving the first-level signal, carries out second-level alarm prompting after receiving the second-level signal, and controls the equipment to stop running. The application has the advantages that the equipment can be stopped according to actual conditions, and the probability of equipment damage is reduced.

Description

Technical Field

[0001] This application relates to the technical field of water pumps, and in particular to an electronic pump with flow feedback. Background Technology

[0002] In the chiller refrigeration industry, the supporting water pumps used are stainless steel multistage centrifugal pumps. This type of industrial pump inevitably encounters the problem of mechanical seal leakage. Therefore, chiller refrigeration equipment will add turbine flow meters in the pipeline. When leakage occurs, if the medium flow rate is lower than the threshold of the turbine flow meter, it will output a signal to the main control board of the chiller refrigeration equipment to enable the equipment to realize the alarm function. However, when the leakage is more serious, the equipment (chiller) needs to be shut down. Therefore, equipment with only alarm function is easily damaged. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, one of the objectives of this application is to provide an electronic pump with flow feedback, which has the advantage of being able to shut down the equipment according to the actual situation, thereby reducing the probability of equipment damage.

[0004] The above-mentioned objective of this application is achieved through the following technical solution:

[0005] An electronic pump with flow feedback includes a data acquisition module, a judgment module, and an alarm module. The data acquisition module acquires the flow rate 'a' and sends the acquired flow rate 'a' to the judgment module. The judgment module receives the flow rate 'a' from the data acquisition module and judges the flow rate 'a'. When 'a' falls within the judgment range, it sends a first-level signal to the alarm module. When 'a' is less than the minimum value of the judgment range, it sends a second-level signal to the alarm module. Upon receiving the first-level signal, the alarm module issues a first-level alarm prompt. Upon receiving the second-level signal, it issues a second-level alarm prompt and controls the equipment to stop.

[0006] By adopting the above technical solution, the flow rate is judged and the range in which the flow rate falls is determined. When the flow rate change is within an acceptable range, a first-level alarm is triggered, and when the flow rate change is within an unacceptable range, a second-level alarm is triggered, and the equipment is shut down, thereby reducing the probability of equipment damage.

[0007] In a preferred embodiment, this application can be further configured such that when 'a' is greater than the maximum value of the judgment interval, a cancellation signal is sent to the alarm module, and the alarm module cancels the first-level alarm prompt after receiving the cancellation signal.

[0008] By adopting the above technical solution, when the flow rate is greater than the maximum value of the judgment range, it indicates that there is no problem with the flow rate, and therefore the first-level alarm prompt is canceled.

[0009] In a preferred embodiment, this application may be further configured to include a circulation module. After the judgment module sends a secondary alarm signal, it sends a circulation signal to the circulation module. Upon receiving the circulation signal, the circulation module switches the circulation pipeline, and the electronic pump and the circulation pipeline are connected and continue to work.

[0010] By adopting the above technical solution, that is, during use, through the setting of the circulation module, when a secondary alarm signal is issued, the equipment will stop, but the pump will continue to work to circulate the liquid.

[0011] In a preferred embodiment, this application can be further configured to include a timing module. When the alarm module receives a cancellation signal, it queries the current alarm level. If it is a level 2 alarm signal, it sends a timing signal to the timing module. The timing module responds to the timing signal and starts timing. After the timing ends, the control device starts.

[0012] By adopting the above technical solution, in the cycle, when the alarm module receives a cancellation signal, it indicates that the liquid flow rate meets the expectation, so timing is started. After the timing ends, the equipment is started, thereby achieving the purpose of equipment self-starting.

[0013] In a preferred embodiment, this application can be further configured such that when the alarm module receives a first-level alarm signal or a second-level alarm signal again, it sends a cancellation signal to the timing module, and the timing module cancels the timing upon receiving the cancellation signal.

[0014] By adopting the above technical solution, if a first-level or second-level alarm signal is received during the timing period, indicating that the flow is unstable, the timing is canceled, the equipment startup is canceled, and the probability of equipment damage is reduced.

[0015] In a preferred embodiment, this application can be further configured such that when the judgment module sends a secondary alarm signal, it also sends a delay signal to the timing module. After receiving the delay signal, the timing module performs a delay timer, and when the delay timer ends, it controls the water pump to stop.

[0016] By adopting the above technical solution, when a level 2 alarm signal is received during use, the timing module performs a delay timer, and after the delay timer stops, it controls the water pump to stop, thereby reducing the probability of water pump damage.

[0017] In a preferred embodiment, this application may be further configured to include a terminal monitored by an operator, which sends a fault signal to the terminal when the judgment module sends a level-two alarm signal.

[0018] By adopting the above technical solution, the terminal will also provide a prompt when a level 2 alarm signal is generated, thereby enabling operators to quickly obtain fault information.

[0019] In a preferred embodiment, this application may be further configured to include a central control module. When the judgment module sends a secondary alarm signal, it sends a fault signal to the central control module. After receiving the fault signal, the central control module performs a query and sends a maintenance signal to the terminal personnel closest to the equipment.

[0020] By adopting the above technical solution, when the central control receives a fault signal, it queries the personnel carrying the terminal closest to the faulty equipment and notifies them, thereby enabling timely troubleshooting.

[0021] In a preferred embodiment, this application can be further configured such that: the central control module queries the maintenance level of the personnel carrying the terminal closest to the device; if the level is lower than the set level, it sends an auxiliary signal to the terminal carried by the personnel with the higher level.

[0022] By adopting the above technical solution, the central control module queries the maintenance level of the nearest personnel and makes a judgment. When the level is lower than the set level, it sends a signal to the higher-level personnel, who can then remotely assist the lower-level personnel in troubleshooting. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the principle of this application.

[0024] Attached reference numerals: 1. Acquisition module; 2. Judgment module; 3. Alarm module; 4. Timing module; 5. Loop module; 6. Central control module; 7. Terminal; 8. Database. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1 This application discloses an electronic pump with flow feedback, comprising a data acquisition module 1, a judgment module 2, a circulation module 5, a timing module 4, a terminal 7, a central control module 6, a database 8, and an alarm module 3. The data acquisition module 1 acquires the flow rate 'a' and sends it to the judgment module 2. The judgment module 2 receives the flow rate 'a' from the data acquisition module 1 and judges the flow rate 'a'. When 'a' falls within the judgment range, it sends a first-level signal to the alarm module 3. When 'a' is less than the minimum value of the judgment range, it sends a second-level signal to the alarm module 3. Upon receiving the first-level signal, the alarm module 3 issues a first-level alarm prompt; upon receiving the second-level signal, it issues a second-level alarm prompt and controls the equipment to stop. In this embodiment, the data acquisition module 1 can calculate the flow rate using a flow sensor or a water pump flow algorithm.

[0027] After sending a level-two alarm signal, judgment module 2 sends a circulation signal to circulation module 5. Upon receiving the circulation signal, circulation module 5 switches the circulation pipeline, connecting the electronic pump and the circulation pipeline for continuous operation. The circulation pipeline refers to a system where the liquid bypasses equipment (chiller) and is directly connected to a liquid container (e.g., a water tank) via pipes to achieve liquid circulation.

[0028] When 'a' is greater than the maximum value of the judgment interval, a cancellation signal is sent to alarm module 3. Upon receiving the cancellation signal, alarm module 3 checks the current alarm signal level. If there is no alarm signal, no action is taken. If it is a level 1 alarm signal, the level 1 alarm is cancelled. If it is a level 2 alarm signal, a timing signal is sent to timing module 4. Timing module 4 responds to the timing signal and starts timing. After sending the timing signal, alarm module 3 enters a listening state. In the listening state, when alarm module 3 receives a level 1 or level 2 alarm signal, it sends a cancellation signal to timing module 4. Upon receiving the cancellation signal, timing module 4 cancels the timing. After the counting module finishes timing, the control device starts and sends a reset signal to alarm module 3. Upon receiving the reset signal, alarm module 3 exits the listening state.

[0029] When the judgment module 2 sends a level-two alarm signal, it also sends a delay signal to the timing module 4. After receiving the delay signal, the timing module 4 starts the delay timer. When the delay timer ends, it controls the water pump to stop. During the delay timer, if the timing module 4 receives a timing signal, it resets and pauses the delay timer. If the timing module 4 receives a timing signal and then receives a cancellation signal during the timing period, it starts the delay timer again.

[0030] After sending a delayed signal, judgment module 2 enters sleep mode. In sleep mode, after sending a secondary alarm signal again, judgment module 2 will not send a delayed signal. When the water pump restarts, judgment module 2 responds to operator input and enters active mode. In active mode, judgment module 2 will also send a delayed signal when sending a secondary alarm signal.

[0031] There are multiple terminals 7, and they can communicate with each other. Both customer operators and manufacturer maintenance personnel carry terminals 7. When the judgment module 2 sends a level 2 alarm signal, it sends a fault signal to terminal 7. The central control module 6 is located at the manufacturer's site. When the judgment module 2 sends a level 2 alarm signal, it sends a fault signal to the central control module 6. After receiving the fault signal, the central control module 6 queries the database 8 for the nearest manufacturer-affiliated terminal 7 carrying a maintenance personnel, sends a maintenance signal to that personnel, and queries the personnel's maintenance level. If the level is lower than the set level, the central control module 6 queries the database 8 for the terminal 7 corresponding to a higher-level maintenance personnel and sends an auxiliary signal to the terminal 7 carried by that higher-level maintenance personnel.

[0032] During equipment maintenance, senior maintenance personnel guide junior maintenance personnel through communication via terminal 7, and evaluate the junior maintenance personnel after maintenance is completed. The evaluation is written into database 8, and the communication content is uploaded to the central control module 6 for future reference.

[0033] The implementation principle of this embodiment is as follows: During use, when fluctuations in the acquired flow rate occur, the flow rate is assessed. If the flow rate is within an acceptable range, a first-level alarm is triggered; if the flow rate changes to an unacceptable range, a second-level alarm is triggered, and the equipment is shut down, thereby reducing the probability of equipment damage. After the equipment shuts down, the water pump continues to run for a period of time, circulating through the circulation pipeline. During the circulation process, if the flow rate recovers and remains stable for a period of time, the equipment is restarted. If the flow rate does not recover within the period of continuous operation, the water pump stops. When a second-level alarm signal is issued, the manufacturer's central control module 6 receives the signal and dispatches the nearest maintenance personnel to troubleshoot the water pump. When the maintenance personnel are of lower skill level, the fault is quickly resolved through on-site repair by lower-level personnel and online assistance by higher-level personnel. Senior maintenance personnel evaluate lower-level personnel, enabling the training and skill level assessment of lower-level personnel, thus improving service quality.

[0034] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electronic pump with flow feedback, characterized in that: The system includes a data acquisition module (1), a judgment module (2), and an alarm module (3). The data acquisition module (1) acquires the data flow 'a' and sends the acquired data flow 'a' to the judgment module (2). The judgment module (2) receives the data flow 'a' sent by the data acquisition module (1) and judges the data flow 'a'. When 'a' falls within the judgment range, it sends a first-level signal to the alarm module (3). When 'a' is less than the minimum value of the judgment range, it sends a second-level signal to the alarm module (3). The alarm module (3) issues a first-level alarm prompt upon receiving the first-level signal and issues a second-level alarm prompt and controls the equipment to stop upon receiving the second-level signal. When 'a' is greater than the maximum value of the judgment range, it sends a cancellation signal to the alarm module (3). The alarm module (3) takes the data flow 'a' after receiving the cancellation signal. The system includes a first-level alarm prompt cancellation module (5), which, after the judgment module (2) sends a second-level alarm signal, sends a loop signal to the loop module (5). After receiving the loop signal, the loop module (5) switches the loop pipeline, and the electronic pump and the loop pipeline are connected and continue to work. The system also includes a timing module (4). When the alarm module (3) receives the cancellation signal, it queries the current alarm prompt level. If it is a second-level alarm signal, it sends a timing signal to the timing module (4). The timing module (4) responds to the timing signal and starts timing. After the timing ends, the control device starts. When the alarm module (3) receives a first-level alarm signal or a second-level alarm signal again, it sends a cancellation signal to the timing module (4). After receiving the cancellation signal, the timing module (4) cancels the timing.

2. The electronic pump with flow feedback according to claim 1, characterized in that: When the judgment module (2) sends a level 2 alarm signal, it will also send a delay signal to the timing module (4). After receiving the delay signal, the timing module (4) will start the delay timer. When the delay timer ends, it will control the water pump to stop.

3. An electronic pump with flow feedback according to claim 1, characterized in that: It also includes a terminal (7), which is monitored by the operator. When the judgment module (2) sends a level 2 alarm signal, a fault signal is sent to the terminal (7).

4. An electronic pump with flow feedback according to claim 3, characterized in that: It also includes a central control module (6). When the judgment module (2) sends a level 2 alarm signal, it sends a fault signal to the central control module (6). After receiving the fault signal, the central control module (6) performs a query and sends a maintenance signal to the terminal (7) closest to the equipment to carry personnel.

5. An electronic pump with flow feedback according to claim 4, characterized in that: The main control module (6) queries the maintenance level of the personnel carried by the terminal (7) closest to the equipment. If the level is lower than the set level, it sends an auxiliary signal to the terminal (7) carried by the higher-level personnel.

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