TWI751502B - Performance evaluation method of ice water main engine - Google Patents

Abstract

A performance evaluation method for an ice water host, which provides a performance evaluation system, the performance evaluation system includes a plurality of sensors connected to an ice water host and an information processing device connected to the sensors, the information processing device stores a plurality of associations The operation record data of the ice water host, each of which includes a plurality of early stage parameters. The current working state of the ice water host is sensed by the sensors to generate a plurality of current parameters, and the current performance of the ice water host is obtained based on the current parameters. The information processing device uses the current parameters as index conditions to read at least one of the operation record data that includes the previous parameters and the values of the current parameters, so as to obtain the current ice water host and the past before and after performance difference.

Description

Performance evaluation method of ice water host

The invention relates to a performance evaluation method, in particular to a performance evaluation method of an ice water host.

With the improvement of the quality of life, air-conditioning systems are currently installed in many homes. In addition, nowadays industrial plants are used to control the internal temperature of the plant, so the air conditioning system has almost become an indispensable and necessary equipment in the industrial plant. Generally speaking, in order to test the air-conditioning capability of an air-conditioning system today, it is mostly judged by measuring the performance of its internal ice-water host. In the past, Data Envelopment Analysis (DEA) was mostly used as a method to judge the efficiency of the ice water host. However, the DEA method was used to analyze the fixed energy input to the ice water host and the output of the ice water host. The fixed power output is used as a judgment factor. However, in order to achieve the system energy saving effect and meet the environmental protection benefits, the current ice water host can be regulated based on the current state and ambient temperature, that is to say, the input energy and output accepted by the current ice water host The power is no longer a fixed value but a variable parameter, which will cause the real working performance of the ice water host to be unable to be accurately measured.

Although the previously published patent TW 201837710 discloses the technical content of adding parameters such as ice water temperature and ice water flow rate to calculate the actual performance of the ice water host, according to the content disclosed in the patent specification, it can be found that the monitoring method is based on a single raw data and current data. It is easy to cause the ice water host to be unable to actually judge whether it is in a state of needing maintenance.

The main purpose of the present invention is to solve the problem that it is impossible to actually judge whether the main unit of ice water is in a state requiring maintenance.

For reaching the above object, the present invention provides a kind of performance evaluation method of ice water host, comprising steps: Step 1: Provide a performance evaluation system, the performance evaluation system includes a plurality of sensors connected to an ice water host and an information processing device connected to the sensors, the information processing device stores a plurality of operations associated with the ice water host Record data, each of the operation record data includes a plurality of early stage parameters, the early stage parameters include a previous stage cooling water inlet temperature, a previous stage ice water inlet temperature, a previous stage ice water flow rate, a previous stage ice water outlet temperature and a previous stage host performance ; Step 2: use the sensors to sense the current working state of the ice water host to generate a plurality of current parameters, the current parameters include a current cooling water inlet temperature, a current ice water inlet temperature, a current ice water inlet temperature flow, a current ice water outlet temperature, and a current host energy consumption; and Step 3: Use the information processing device to receive the current parameters, and obtain a current host performance based on the current parameters. The information processing device uses the current parameters as index conditions to read the values and values in the previous parameters included. The information processing device obtains the performance difference before and after the ice water host based on the current host performance and the previous host performance in the read at least one operation log data of the at least one operation record data with similar current parameters.

In one embodiment, the previous parameters include a previous cooling water flow rate, and the current parameters include a current cooling water flow rate.

In one embodiment, the information processing apparatus determines whether the previous parameters are similar to the current parameters within a tolerance range.

In one embodiment, the information processing device aggregates the current parameters based on a time, the information processing device compares the current parameters obtained in consecutive times, when at least one of the current parameters corresponding to a time When the current parameters of the same attribute different from the previous time meet an information discarding condition, the information processing device discards the current parameters in the previous time.

In one embodiment, the information processing device reads the operation record data whose values in the previous parameters are similar to the current parameters, and obtains an average performance of the previous host based on the read operation record data, The information processing device obtains the performance difference before and after the ice water host based on the average performance of the previous host compared to the current host performance.

In one embodiment, the method includes a fourth step: enabling the information processing device to send an ice water host evaluation result to a user based on the recorded communication settings.

As disclosed in the foregoing summary of the invention, compared with the conventional technology, the present invention has the following characteristics: the present invention uses the current parameters as index conditions through the information processing device to read the values in the previous parameters and the current parameters. Approximate at least one of the operation log data, the information processing device based on the current host performance and the previous host performance in the read at least one of the operation log data. Compared with the conventional method, the performance evaluation method of the present invention uses plural data as historical data, and compares the performance of the ice water main unit before and after, so as to truly determine the performance difference between the ice water main unit and the ice water main unit.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings:

Please refer to FIG. 1 to FIG. 3 , the present invention provides a performance evaluation method 10 of an ice water host, and the performance evaluation method 10 includes the following steps: Step 111: Provide a performance evaluation system 30. The performance evaluation system 30 includes a plurality of sensors 31 connected to an ice water host 50 and an information processing device 32 connected to the sensors 31. The information processing device 32 stores Plural number of operation record data 321 associated with the ice water host 50, each of the operation record data 321 includes a plurality of early stage parameters, and these early stage parameters include a previous stage cooling water inlet temperature, a previous stage ice water inlet temperature, a previous stage ice water flow rate, An early stage ice water outlet temperature and a previous stage host performance; Step 2 12: Using the sensors 31 to sense the current working state of the ice water host 50 to generate a plurality of current parameters, the current parameters include a current cooling water inlet temperature, a current ice water inlet temperature, a current ice water flow, a current ice water outlet temperature, and a current host power consumption; and Step 3 13: Use the information processing device 32 to receive the current parameters, and obtain a current host performance based on the current parameters. The information processing device 32 uses the current parameters as index conditions to read the previous parameters included At least one of the operation record data 321 whose median value is similar to the current parameters, the information processing device 32 obtains the ice water host based on the current host performance and the previous host performance in the read at least one of the operation record data 321 50 front and rear performance differences.

Further, please refer to FIG. 1 to FIG. 3 again. Before the performance evaluation method 10 is specifically described in this case, the performance evaluation system 30 is explained first. The performance evaluation system 30 of the present invention is connected to the ice water host 50. The performance evaluation system 30 can be directly installed on the ice water host 50 or connected to the ice water host 50 by means of additional components. The performance evaluation system 30 Including the sensors 31 and the information processing device 32, the sensors 31 are respectively connected to at least one water flow circuit 51 of the ice water host 50, further, the at least one water flow of the ice water host 50 The loop 51 can be connected to an air conditioning box 70 or a cooling water tower 80 , and the sensors 31 can be used to detect the target to be detected on the ice water host 50 . In one embodiment, the sensors 31 can detect the ice water host 50 at every fixed interval. For example, the sensors 31 can detect the ice water every 10, 15 or 20 minutes. The host 50 performs detection, and the sensors 31 can also detect the state of the ice water host 50 at a fixed time every day. In addition, the information processing device 32 may be a processor having both access and computing functions, and the information processing device 32 performs computing processing on the data detected by the sensors 31 . Further, in the step 111, the performance evaluation system 30 is provided and the information processing device 32 is made to store the operation record data 321 associated with the ice water host 50, each of the operation record data 321 includes the earlier stages parameters, these early parameters include the early cooling water inlet temperature, the early ice water inlet temperature, the early ice water flow, the early ice water outlet temperature, and the early host performance, wherein the early host performance can be determined by the ice water host 50 is judged based on the coefficient of performance (COP) in the early stage, that is to say, the early stage host performance can be determined by the cooling capacity of the ice water host 50 and the power consumed by the ice water host 50 during cooling. calculated. In addition, the previous parameters may be that the information processing device 32 records all the operation record data 321 from the ice water host 50 from the start of operation to the current one, or the information processing device 32 records the ice water host 50 The operation record data 321 in a certain period of time.

Go to step 2 12, use the sensors 31 to sense the current working state of the ice water host 50 to generate the current parameters, and obtain the current host performance based on the current parameters. Wherein, the current parameters will be imported into the operation record data 321 by the information processing device 32 after a period of time as the early parameters of the ice water host 50 . Furthermore, the current parameters include the current cooling water inlet temperature, the current ice water inlet temperature, the current ice water flow rate, the current ice water outlet temperature, and the current host energy consumption. Next, go to step 3 13, use the information processing device 32 to receive the current parameters, the information processing device 32 performs arithmetic processing based on the current parameters to obtain the current host performance, the information processing device 32 uses the current parameters As an index condition, at least one of the operation record data 321 containing the values of the previous parameters and the current parameters is read. More specifically, before the information processing device 32 reads at least one of the operation record data 321 , the information processing device 32 can compare the previous parameters and the current parameters based on each of the operation record data 321 , the information processing device 32 compares each of the current parameters with each of the previous parameters in one of the operation record data 321, when the error between the previous parameters in the operation record data 321 and the current parameters is too large , the information processing device 32 will discard the operation record data 321 and compare it with another operation record data 321. When the information processing device 32 compares the similar operation record data 321, the information processing device 32 reads This operation log data 321 is approximated. Afterwards, the information processing device 32 obtains the performance difference before and after the ice water host 50 based on the current host performance and the previous host performance in the read at least one operation record data 321 .

Continuing from the above, compared with the conventional method, the performance evaluation method 10 of the present invention no longer only uses the fixed energy input to the ice water host 50 and the fixed power output by the ice water host 50 as the judging factors, but can further Considering the actual implementation parameters of the ice water host 50, such as ice water temperature, ice water flow and cold water temperature, etc., the present invention can more accurately determine the real operation performance of the ice water host 50. In addition, the present invention uses plural data as historical data, and compares the performance of the ice water main unit 50 before and after, so as to truly determine the performance difference between the ice water main unit 50 before and after.

In one embodiment, in order to more accurately determine the performance difference between the current ice water host 50 and the previous stage, the early stage parameter may further include a previous cooling water flow rate, and the current parameter includes a current cooling water flow rate. By increasing the early stage cooling The water flow rate and the current cooling water flow rate enable the present invention to more accurately calculate the previous host performance and the current host performance, and then more accurately determine the performance difference of the ice water host 50 .

Referring to FIG. 1 to FIG. 3 , the information processing device 32 determines whether the previous parameters are similar to the current parameters within an allowable range. Wherein, the allowable range can be set according to a preset, and in one embodiment, the allowable range can be 5%. For example, if the inlet temperature of the cooling water in the previous stage is 10°C, and the inlet temperature of the cooling water at the current stage is 20°C and exceeds the allowable range, it is determined that the inlet temperature of the cooling water is not similar to the inlet temperature of the cooling water in the previous stage. . If the current cooling water inlet temperature is 11°C, it is determined that the current cooling water inlet temperature and the previous cooling water inlet temperature are similar to each other within the allowable range.

Further, in one embodiment, the information processing device 32 reads the operation record data 321 whose values in the previous parameters are similar to the current parameters, and obtains the operation record data 321 based on the read operation record data 321 . An average performance of a previous host, and the information processing device 32 obtains a performance difference between before and after the ice water host 50 based on the performance of the previous host by comparing the performance of the current host. Specifically explained, the performance of the host referred to herein can be judged by the coefficient of performance (Coefficient of Performance, COP for short) of the ice water host 50 . The coefficient of performance of the ice water main unit 50 refers to the cooling capacity of the ice water main unit 50 and the work consumed by the ice water main unit 50 during cooling. . In addition, in the present invention, in order to accurately calculate the performance of the ice water host 50 to determine whether the ice water host 50 needs to be repaired, the information processing device 32 calculates the average performance of the previous host based on the read parameters in the previous period, and uses The average performance of the previous host is compared with the performance of the current host, thereby judging the difference between the performance of the ice water host 50 before and after.

In addition, in one embodiment, the information processing device 32 aggregates the current parameters based on a time, the information processing device 32 compares the current parameters obtained in consecutive times, and when the current parameters corresponding to one time are When at least one of the current parameters different from the same attribute in the previous time reaches an information discarding condition, the information processing device 32 discards the current parameters in the previous time. For example, the information processing device 32 can collect the current parameters every 1 hour, and the information processing device 32 records the current parameters every 10 minutes. In other words, the information processing device 32 records the current parameters within 1 hour. A total of 6 records were recorded. Once the information processing device 32 finds that there is an error between the current ice water flow rate in the third data and the current ice water flow in the second data, and the error value reaches the information discarding condition, the information processing device 32 Then, the third data is discarded, so that the information processing device 32 can discard the information processing device 32 when the ice water host 50 is greatly affected by the external environment or the sensors 31 suddenly work incorrectly. Part of the data further determines the more accurate performance of the ice water host 50 . In one embodiment, the information discarding condition can be set to an error value of 1%, that is, when the error value of at least one of the current parameters corresponding to one time and the current parameter of the same attribute at the previous time reaches 1% 1%, the information processing device 32 discards the current parameters within the time.

On the other hand, referring to FIG. 4 and FIG. 5, in one embodiment, the method 10 further includes step 14: enabling the information processing device 32 to send the ice water host evaluation result to the user based on the recorded communication settings . Specifically, the performance evaluation system 30 of the present invention can be connected to a display device 60, the display device 60 is connected to the information processing device 32, and the display device 60 can be a central control device or a mobile device of the user. The information processing device 32 can obtain the evaluation result of the ice water main unit whether the ice water main unit 50 needs to be repaired based on the acquired performance difference of the ice water main unit 50 before and after. It is transmitted to the central control device or to the user by means of text messages, e-mails, etc. Further, the information processing device 32 can provide all the obtained evaluation results of the ice water main unit to the user, that is to say, the user will accept the evaluation results of the ice water main unit that the ice water main unit 50 does not need to be repaired, and will also accept the evaluation results of the ice water main unit. Receive the evaluation result of the ice water main unit that needs to be repaired due to the abnormality of the ice water main unit 50 . In addition, the information processing device 32 can also filter the evaluation result of the ice water main unit first, and only provide the user with the evaluation result of the ice water main unit that the ice water main unit 50 is abnormal and needs to be repaired.

To sum up, the above is only a preferred embodiment of the present invention, and should not limit the scope of implementation of the present invention, that is, all equivalent changes and modifications made according to the scope of the patent application of the present invention should still belong to the present invention. patent coverage.

10: Performance Evaluation Methods 11: Step 1 12: Step 2 13: Step Three 14: Step Four 30: Performance Evaluation System 31: Sensor 32: Information processing device 321: Operation record data 50: Ice water host 51: water flow circuit 60: Display device 70: Air conditioning box 80: cooling water tower

FIG. 1 is a schematic diagram of steps according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a structural unit according to an embodiment of the present invention. FIG. 3 is a schematic diagram of an ice water host connected to a sensor according to an embodiment of the present invention. FIG. 4 is a schematic diagram of steps in another embodiment of the present invention. FIG. 5 is a schematic diagram of a structural unit according to another embodiment of the present invention.

10: Performance Evaluation Methods

11: Step 1

12: Step 2

13: Step Three

Claims (8)

A performance evaluation method for an ice water host, comprising steps: Step 1: Provide a performance evaluation system, the performance evaluation system includes a plurality of sensors connected to an ice water host and an information processing device connected to the sensors, the information processing device stores a plurality of operations associated with the ice water host Record data, each of the operation record data includes a plurality of early stage parameters, the early stage parameters include a previous stage cooling water inlet temperature, a previous stage ice water inlet temperature, a previous stage ice water flow rate, a previous stage ice water outlet temperature and a previous stage host performance ; Step 2: use the sensors to sense the current working state of the ice water host to generate a plurality of current parameters, the current parameters include a current cooling water inlet temperature, a current ice water inlet temperature, a current ice water inlet temperature flow, a current ice water outlet temperature, and a current host energy consumption; and Step 3: Use the information processing device to receive the current parameters, and obtain a current host performance based on the current parameters. The information processing device uses the current parameters as index conditions to read the values and values in the previous parameters included. The information processing device obtains the performance difference before and after the ice water host based on the current host performance and the previous host performance in the read at least one operation log data of the at least one operation record data with similar current parameters. The performance evaluation method for an ice water host according to claim 1, wherein the previous parameter includes a previous cooling water flow rate, and the current parameter includes a current cooling water flow rate. The performance evaluation method for an ice water host according to claim 1, wherein the information processing device judges whether the previous parameters and the current parameters are similar within an allowable range. The performance evaluation method for an ice water host according to claim 1 or 2, wherein the information processing device collects the current parameters based on a time, the information processing device compares the current parameters obtained in continuous time, and when one of the current parameters is obtained When at least one of the current parameters corresponding to the time is different from the current parameter of the same attribute in the previous time and reaches an information discarding condition, the information processing device discards the current parameters in the time. The performance evaluation method of the ice water host according to claim 4, wherein the information processing device reads the operation record data whose values are similar to the current parameters in the previous parameters included, and based on the read out The operation record data obtains the average performance of a previous host, and the information processing device obtains the performance difference before and after the ice water host based on the ratio of the average performance of the previous host to the performance of the current host. The performance evaluation method of the ice water host according to claim 5, wherein the method includes a fourth step: making the information processing device send an ice water host evaluation result to a user based on the recorded communication settings. The performance evaluation method of the ice water host according to claim 1 or 2, wherein the information processing device reads the operation record data whose values are similar to the current parameters in the previous parameters included, and based on the read out The operation record data obtained are used to obtain the average performance of a previous host, and the information processing device obtains the performance difference between the ice water host and the current host based on the ratio of the average performance of the previous host to the performance of the current host. The performance evaluation method of the ice water host according to claim 1 or 2, wherein the method includes a fourth step: making the information processing device send an ice water host evaluation result to a user based on the recorded communication settings.

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