Cooling-water machine with low failure rate and cooling-water machine early warning control system

Abstract

The invention discloses a low-failure-rate cooling-water machine and a cooling-water machine early warning control system, and relates to the technical field of cooling-water machines, and the low-failure-rate cooling-water machine comprises a shell, a moisture absorption mechanism and a dehumidification mechanism; a first filter screen is mounted on the shell; the moisture absorption mechanism comprises an air guide frame, a driving shaft, a driving synchronous wheel, a synchronous belt, a driven synchronous wheel, a driven shaft, a silk screen box and a driving assembly, the silk screen box is made of a metal wire mesh, so that spherical calcium chloride in the silk screen box can be in contact with air, and the air filtered by the first filter screen is in contact with the spherical calcium chloride when penetrating through the air guide frame; moisture in the air is absorbed through the spherical calcium chloride and is prevented from entering the shell, so that the phenomenon that the water chiller breaks down due to the fact that the humidity is too large is avoided, the probability that the water chiller breaks down is reduced, and normal operation of the water chiller is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of water chillers, and more specifically, to a water chiller with a low failure rate and a water chiller early warning control system. Background Art

[0002] A chiller, also known as a cooling water circulation machine or a refrigeration unit, is a device that is specialized in providing a stable low-temperature cooling water flow. It works through an internal refrigeration system (such as compressor refrigeration, absorption refrigeration, etc.), cools normal temperature or warm water, and continuously circulates it to the equipment or system that needs cooling, so as to achieve the purpose of controlling temperature, protecting equipment, improving production efficiency or optimizing the working environment. Chillers are widely used in industrial production, scientific research experiments, medical equipment, data centers, food processing, laser technology, plastic molding, chemical pharmaceuticals and other fields. They are one of the indispensable important equipment in modern industrial and scientific research activities. Its characteristics include high efficiency and energy saving, precise temperature control, stable and reliable operation, simple operation and convenient maintenance, etc., which can effectively meet the different requirements of different industries for cooling water temperature, flow and water quality.

[0003] As a sophisticated refrigeration equipment, the normal operation of the chiller is affected by a variety of environmental factors. Dust and dirt easily accumulate on the chiller's condenser, evaporator, filter and other components, affecting the heat exchange efficiency, increasing energy consumption, and may even cause blockage, resulting in reduced cooling effect or failure. In addition, high humidity environments may cause the chiller's electrical components to become damp, increasing the risk of electrical failures such as short circuits and leakage. At the same time, excessive humidity may also promote the growth of mold and bacteria, causing damage to the water quality and internal components of the chiller. These harsh operating environments will make the chiller more prone to failure and affect the normal operation of the equipment. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a chiller with a low failure rate and a chiller early warning control system.

[0005] To achieve the above object, the present invention provides the following technical solution: a low failure rate chiller, comprising a housing, a moisture absorption mechanism and a dehumidification mechanism; A first filter is installed on the housing, and the first filter is used to filter the air entering the housing; The moisture absorption mechanism is arranged on the shell, and the moisture absorption mechanism is used to absorb moisture in the air entering the shell. The moisture absorption mechanism includes an air guide frame, a driving shaft, an active synchronous wheel, a synchronous belt, a driven synchronous wheel, a driven shaft, a screen box and a driving assembly. The air guide frame is located on one side of the first filter and is fixedly connected to the inner wall of the shell. The air guide frame is rotatably connected to the driving shaft, and a plurality of active synchronous wheels are fixedly connected to the driving shaft. The plurality of active synchronous wheels are respectively connected to the driven synchronous wheels through synchronous belt transmission, and the plurality of driven synchronous wheels are all fixedly connected to the driven shaft. The driven shaft is rotatably connected to the air guide frame, and a plurality of screen boxes are fixedly connected to the plurality of synchronous belts, and a plurality of spherical calcium chlorides are respectively placed in the plurality of screen boxes; The driving assembly is connected to the air guide frame, and the driving assembly is used to drive the multiple screen boxes to move; The dehumidification mechanism is arranged on the air guide frame, and is used for removing moisture in the spherical calcium chloride.

[0006] A further technical solution of the present application is as follows: the driving assembly comprises a motor, the motor is mounted on the air guide frame, and the output shaft of the motor is connected to one end of the driving shaft via a coupling.

[0007] A further technical solution of the present application is as follows: the dehumidification mechanism includes a dehumidification hood, an infrared baking lamp and a second filter; the dehumidification hood is fixedly connected to the air guide frame; a plurality of infrared baking lamps are installed on the dehumidification hood; the second filter is installed on the shell; and the second filter connects the interior of the dehumidification hood with the exterior of the shell.

[0008] A further technical solution of the present application is as follows: the dehumidification mechanism also includes a plurality of exhaust fans, and the plurality of exhaust fans are all located on one side of the second filter and are all installed on the shell.

[0009] The present application also provides a chiller early warning control system, which is applied to the above-mentioned chiller with a low failure rate, and the chiller early warning control system includes a monitoring module, an early warning module and an interactive module; The monitoring module is used to monitor various values ​​of the chiller, obtain real-time values, and send the real-time values ​​to the early warning module and the interactive module; The early warning module is used to receive the real-time value and calculate the fluctuation value of the real-time value; the early warning module is also used to compare the fluctuation value with the fluctuation range preset by the system, and if the fluctuation value is not within the fluctuation range, the alarm mechanism is triggered; The interactive module is connected to the monitoring module and the early warning module respectively, and is used to monitor and manage the operation of the system. The interactive module includes an operation panel, which is installed on the housing and is used to perform interactive operations.

[0010] A further technical solution of the present application: the monitoring module includes a temperature sensor, a flow sensor and a pressure sensor; The temperature sensor is used to monitor the outlet water temperature, return temperature, exhaust temperature and external temperature of the chiller in real time, the flow sensor is used to monitor the flow of cooling water in the chiller in real time, and the pressure sensor is used to monitor the pressure changes in the chiller system in real time.

[0011] A further technical solution of the present application is: the early warning module calculates the fluctuation value of the real-time value once every time interval t; By formula Calculate the fluctuation value VH of the real-time value within the time length t, where ha is the highest value of the real-time value within the time length t, hb is the lowest value of the real-time value within the time length t, and i is the correction coefficient; The fluctuation value VH is compared with the fluctuation range preset by the system. If the fluctuation value is not within the fluctuation range, the early warning module determines that the operation of the chiller has failed and triggers the alarm mechanism.

[0012] A further technical solution of the present application is as follows: the interactive module is used to set the fluctuation range, and the interactive module is also used to display the system operation data in real time.

[0013] A further technical solution of the present application: the interaction module further includes a program expansion unit; The program expansion unit has a built-in program editor for users to freely edit program segments and steps, and each program segment can add up to 100 steps; The program expansion unit is also used to allow users to customize the control logic and required parameters of each mode in the system; Each step executes the corresponding control logic according to the selected mode, including the control of temperature, flow, pressure and power, as well as special operations of pause, jump and reference; The program expansion unit is also used to allow the user to pause the execution of the program at any time and resume it when needed; The program expansion unit is also used to allow the user to skip the current step and directly execute the next step during the program execution.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The wire mesh box is made of metal wire mesh, so that the spherical calcium chloride in the wire mesh box can contact with the air. The air filtered by the first filter will contact with the spherical calcium chloride when passing through the air guide frame. The spherical calcium chloride absorbs moisture in the air and prevents moisture in the air from entering the shell, thereby avoiding the failure of the chiller due to excessive humidity, thereby reducing the probability of failure of the chiller and ensuring the normal operation of the chiller; 2. The two synchronous belts can drive multiple screen boxes to rotate during the rotation process, so that the spherical calcium chloride in the multiple screen boxes can be evenly contacted with the air, thereby enhancing the effect of the spherical calcium chloride absorbing moisture in the air; 3. When the two synchronous belts drive multiple screen boxes to rotate, the multiple screen boxes will pass through the dehumidification hood in turn. The infrared baking lamp can bake the screen boxes passing through the dehumidification hood, thereby evaporating the moisture in the spherical calcium chloride in the screen box, restoring the spherical calcium chloride to anhydrous state, and thus always maintaining the strong ability of the spherical calcium chloride to absorb moisture, ensuring the dehumidification effect of the spherical calcium chloride; 4. During the stable operation of the chiller, the fluctuation value should be within the preset fluctuation range of the system. If the fluctuation value is not within the fluctuation range, it means that there is a fault in the operation of the chiller, and the alarm mechanism will be triggered to remind the user to carry out maintenance in time to avoid serious problems caused by late fault discovery, and effectively shorten the repair and downtime time; and the program expansion unit allows users to flexibly configure according to actual needs. Users can set different control parameters and strategies through programming to adapt to different production scenarios and process requirements.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall structure of a chiller with a low failure rate in an embodiment of the present invention; Figure 2 is a cross-sectional view of the first filter screen and the second filter screen in an embodiment of the present invention; Figure 3 It is a structural schematic diagram of the moisture absorption mechanism in an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a screen box in an embodiment of the present invention; Figure 5 It is a cross-sectional view of the dehumidification cover in an embodiment of the present invention.

[0017] In the figure: 1. Shell; 2. First filter; 3. Air guide frame; 4. Driving shaft; 5. Driving synchronous wheel; 6. Synchronous belt; 7. Driven synchronous wheel; 8. Driven shaft; 9. Screen box; 10. Motor; 11. Dehumidification hood; 12. Infrared baking lamp; 13. Second filter; 14. Exhaust fan; 15. Operation panel. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, or are the directions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Reference Figures 1 to 5 , In one embodiment of the present application, a low failure rate chiller includes a housing 1, a moisture absorption mechanism and a dehumidification mechanism; The housing 1 is provided with a first filter 2, which is used to filter the air entering the housing 1, thereby preventing dust and dirt in the air from entering the housing 1 and reducing the probability of failure of the chiller; The moisture absorption mechanism is arranged on the housing 1, and is used to absorb moisture in the air entering the housing 1. The moisture absorption mechanism includes an air guide frame 3, a driving shaft 4, an active synchronous wheel 5, a synchronous belt 6, a driven synchronous wheel 7, a driven shaft 8, a screen box 9 and a driving assembly. The air guide frame 3 is located on one side of the first filter screen 2 and is fixedly connected to the inner wall of the housing 1. Figure 2 , the air filtered by the first filter screen 2 will pass through the air guide frame 3 and then enter the housing 1, the air guide frame 3 is rotatably connected with a driving shaft 4, the driving shaft 4 is fixedly connected with a plurality of driving synchronous wheels 5, the plurality of driving synchronous wheels 5 are respectively connected with driven synchronous wheels 7 through a synchronous belt 6, the plurality of driven synchronous wheels 7 are all fixedly connected with a driven shaft 8, the driven shaft 8 is rotatably connected with the air guide frame 3, the plurality of synchronous belts 6 are fixedly connected with a plurality of screen boxes 9, a plurality of spherical calcium chlorides are respectively placed in the plurality of screen boxes 9, calcium chloride is a highly efficient desiccant that can quickly absorb moisture in the air, and is often used in industrial dehumidification, moisture-proofing of archives, and other fields; like Figure 2 and Figure 4 The wire mesh box 9 is made of a metal wire mesh, so that the spherical calcium chloride in the wire mesh box 9 can contact with the air. The air filtered by the first filter screen 2 will contact with the spherical calcium chloride when passing through the air guide frame 3. The spherical calcium chloride absorbs moisture in the air and prevents moisture in the air from entering the housing 1, thereby avoiding the malfunction of the chiller due to excessive humidity, thereby reducing the probability of malfunction of the chiller and ensuring the normal operation of the chiller; The driving assembly is connected to the air guide frame 3, and the driving assembly is used to drive the plurality of screen boxes 9 to move. Figure 3 The air guide frame 3 is provided with a plurality of through slots for the screen box 9 to pass through; The dehumidification mechanism is arranged on the air guide frame 3, and is used to remove moisture in the spherical calcium chloride.

[0022] Reference Figure 3 As a preferred embodiment of the present application, the driving assembly includes a motor 10, the motor 10 is mounted on the air guide frame 3, the output shaft of the motor 10 is connected to one end of the driving shaft 4 through a coupling, the motor 10 can drive the driving shaft 4 to rotate, the driving shaft 4 can drive two driving synchronous wheels 5 to rotate, the two driving synchronous wheels 5 can respectively drive two driven synchronous wheels 7 to rotate through a synchronous belt 6, and the two driven synchronous wheels 7 drive the driven shaft 8 to rotate; like Figure 4 The two synchronous belts 6 can drive the multiple screen boxes 9 to rotate during the rotation, so that the spherical calcium chloride in the multiple screen boxes 9 can be evenly contacted with the air, thereby enhancing the effect of the spherical calcium chloride absorbing moisture in the air.

[0023] Reference Figure 2 and Figure 5 As a preferred embodiment of the present application, the dehumidification mechanism includes a dehumidification cover 11, an infrared baking lamp 12 and a second filter 13. The dehumidification cover 11 is fixedly connected to the air guide frame 3. A plurality of infrared baking lamps 12 are installed on the dehumidification cover 11. The second filter 13 is installed on the housing 1. The second filter 13 connects the interior of the dehumidification cover 11 with the exterior of the housing 1. like Figure 5 When the two synchronous belts 6 drive the multiple screen boxes 9 to rotate, the multiple screen boxes 9 will pass through the dehumidification cover 11 in turn, and the infrared baking lamp 12 can bake the screen boxes 9 passing through the dehumidification cover 11, so as to evaporate the moisture in the spherical calcium chloride in the screen box 9, restore the spherical calcium chloride to a water-free state, and thus always maintain the strong ability of the spherical calcium chloride to absorb moisture, thereby ensuring the dehumidification effect of the spherical calcium chloride; and the evaporated moisture in the spherical calcium chloride is discharged to the outside of the shell 1 through the second filter 13.

[0024] Reference Figure 2 As a preferred embodiment of the present application, the dehumidification mechanism also includes a plurality of exhaust fans 14, and the plurality of exhaust fans 14 are all located on one side of the second filter 13 and are all installed on the shell 1. The exhaust fans 14 can better extract the evaporated water in the spherical calcium chloride to the outside of the shell 1.

[0025] In another embodiment of the present application, a chiller early warning control system is also proposed, including a monitoring module, an early warning module and an interaction module; The monitoring module is used to monitor various values ​​of the chiller, obtain real-time values, and send the real-time values ​​to the early warning module and the interactive module; The early warning module is used to receive the real-time value and calculate the fluctuation value of the real-time value; the early warning module is also used to compare the fluctuation value with the fluctuation range preset by the system. During the stable operation of the chiller, the fluctuation value should be within the fluctuation range preset by the system. If the fluctuation value is not within the fluctuation range, it means that the operation of the chiller fails, and the alarm mechanism is triggered; thereby promptly reminding the user to perform maintenance, avoiding serious problems caused by late fault discovery, and effectively shortening the repair and downtime time; for example, the first filter 2 can be cleaned, the spherical calcium chloride in the wire mesh box 9 can be replaced, or the monitoring module can be repaired; The interactive module is connected to the monitoring module and the early warning module respectively. The interactive module is used to monitor and manage the operation of the system. The interactive module includes an operation panel 15. The operation panel 15 is installed on the housing 1 and is used to perform interactive operations.

[0026] As a preferred embodiment of the present application, the monitoring module includes a temperature sensor, a flow sensor and a pressure sensor; The temperature sensor is used to monitor the outlet water temperature, return temperature, exhaust temperature and external temperature of the chiller in real time, the flow sensor is used to monitor the flow of cooling water in the chiller in real time, and the pressure sensor is used to monitor the pressure changes in the chiller system in real time.

[0027] As a preferred embodiment of the present application, the early warning module calculates the fluctuation value of the real-time value once every time interval t; By formula Calculate the fluctuation value VH of the real-time value within the time length t, where ha is the highest value of the real-time value within the time length t, hb is the lowest value of the real-time value within the time length t, and i is the correction coefficient; The fluctuation value VH is compared with the fluctuation range preset by the system. If the fluctuation value is not within the fluctuation range, the early warning module determines that the operation of the chiller has failed and triggers the alarm mechanism.

[0028] As a preferred embodiment of the present application, the interactive module is used to set the fluctuation range, and the interactive module is also used to display system operation data in real time.

[0029] As a preferred embodiment of the present application, the interactive module further includes a program expansion unit, which allows the user to flexibly configure according to actual needs. The user can set different control parameters and strategies through programming to adapt to different production scenarios and process requirements; The program expansion unit has a built-in program editor for users to freely edit program segments and steps, including inserting or deleting program segments and steps. Users can adjust the program structure as needed, and each program segment can add up to 100 steps; The program expansion unit is also used for users to customize the control logic and required parameters of each mode in the system; the system supports multiple operating modes, such as constant temperature mode, constant current mode, constant pressure mode, etc. Users can choose the appropriate operating mode according to their needs to achieve the best control effect; Each step executes the corresponding control logic according to the selected mode, including the control of temperature, flow, pressure and power, as well as special operations of pause, jump and reference; The program expansion unit is also used to allow the user to pause the execution of the program at any time and resume it when needed; The program expansion unit is also used to allow the user to skip the current step and directly execute the next step during the program execution; In addition, the program expansion unit supports compatibility with Excel files, allowing users to export program data as Excel files, or import program data from Excel files for batch editing and backup.

[0030] It should be noted that the electrical components appearing in this application document are all electrically connected to the 380V mains, the standard parts used in this application document can all be purchased on the market, and the specific connection methods of each part are connected by conventional means such as mature bolts, rivets, welding, etc. in the prior art, and the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, so no specific description will be given here.

[0031] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A chiller with a low failure rate, characterized in that: include: A housing (1), wherein a first filter screen (2) is mounted on the housing (1), and the first filter screen (2) is used to filter air entering the interior of the housing (1); A moisture absorption mechanism, the moisture absorption mechanism being arranged on the shell (1), the moisture absorption mechanism being used to absorb moisture in the air entering the shell (1), the moisture absorption mechanism comprising an air guide frame (3), a driving shaft (4), a driving synchronous wheel (5), a synchronous belt (6), a driven synchronous wheel (7), a driven shaft (8), a screen box (9) and a driving assembly, the air guide frame (3) being located on one side of the first filter screen (2) and being fixedly connected to the inner wall of the shell (1), the air guide frame (3) being rotatably connected to the driving shaft (4), a plurality of driving synchronous wheels (5) being fixedly connected to the driving shaft (4), the plurality of driving synchronous wheels (5) being respectively connected to the driven synchronous wheels (7) via a synchronous belt (6), the plurality of driven synchronous wheels (7) being fixedly connected to the driven shaft (8), the driven shaft (8) being rotatably connected to the air guide frame (3), a plurality of screen boxes (9) being fixedly connected to the plurality of synchronous belts (6), a plurality of spherical calcium chloride being respectively placed in the plurality of screen boxes (9); The driving assembly is connected to the air guide frame (3), and the driving assembly is used to drive the plurality of wire mesh boxes (9) to move; and A dehumidification mechanism, wherein the dehumidification mechanism is arranged on the air guide frame (3), and the dehumidification mechanism is used to remove moisture in the spherical calcium chloride.

2. A chiller with a low failure rate according to claim 1, characterized in that: The driving assembly comprises a motor (10), the motor (10) being mounted on the air guide frame (3), and the output shaft of the motor (10) being connected to one end of the driving shaft (4) via a coupling.

3. A chiller with a low failure rate according to claim 1, characterized in that: The dehumidification mechanism comprises a dehumidification hood (11), an infrared baking lamp (12) and a second filter (13); the dehumidification hood (11) is fixedly connected to the air guide frame (3); a plurality of infrared baking lamps (12) are mounted on the dehumidification hood (11); the second filter (13) is mounted on the housing (1); and the second filter (13) connects the interior of the dehumidification hood (11) with the exterior of the housing (1).

4. A chiller with a low failure rate according to claim 3, characterized in that: The dehumidification mechanism further comprises a plurality of exhaust fans (14), wherein the plurality of exhaust fans (14) are all located on one side of the second filter screen (13) and are all mounted on the housing (1).

5. A chiller early warning control system, applied to a chiller with a low failure rate as claimed in any one of claims 1 to 4, characterized in that: The chiller early warning control system includes a monitoring module, an early warning module and an interactive module; The monitoring module is used to monitor various values ​​of the chiller, obtain real-time values, and send the real-time values ​​to the early warning module and the interactive module; The early warning module is used to receive the real-time value and calculate the fluctuation value of the real-time value; the early warning module is also used to compare the fluctuation value with the fluctuation range preset by the system, and if the fluctuation value is not within the fluctuation range, the alarm mechanism is triggered; The interactive module is connected to the monitoring module and the early warning module respectively, and is used to monitor and manage the operation of the system. The interactive module comprises an operation panel (15), and the operation panel (15) is installed on the housing (1). The operation panel (15) is used to perform interactive operations.

6. A chiller early warning control system according to claim 5, characterized in that: The monitoring module includes a temperature sensor, a flow sensor and a pressure sensor; The temperature sensor is used to monitor the outlet water temperature, return temperature, exhaust temperature and external temperature of the chiller in real time, the flow sensor is used to monitor the flow of cooling water in the chiller in real time, and the pressure sensor is used to monitor the pressure changes in the chiller system in real time.

7. A chiller early warning control system according to claim 6, characterized in that: The early warning module calculates the fluctuation value of the real-time value once every time interval t; By formula Calculate the fluctuation value VH of the real-time value within the time length t, where ha is the highest value of the real-time value within the time length t, hb is the lowest value of the real-time value within the time length t, and i is the correction coefficient; The fluctuation value VH is compared with the fluctuation range preset by the system. If the fluctuation value is not within the fluctuation range, the early warning module determines that the operation of the chiller has failed and triggers the alarm mechanism.

8. The chiller early warning control system according to claim 7, characterized in that: The interactive module is used to set the fluctuation range, and the interactive module is also used to display system operation data in real time.

9. A chiller early warning control system according to claim 8, characterized in that: The interactive module also includes a program expansion unit; The program expansion unit has a built-in program editor for users to freely edit program segments and steps, and each program segment can add up to 100 steps; The program expansion unit is also used to allow users to customize the control logic and required parameters of each mode in the system; Each step executes the corresponding control logic according to the selected mode, including the control of temperature, flow, pressure and power, as well as special operations of pause, jump and reference; The program expansion unit is also used to allow the user to pause the execution of the program at any time and resume it when needed; The program expansion unit is also used to allow the user to skip the current step and directly execute the next step during the program execution.

Images