A dynamic energy consumption control system for cooling water of proton and heavy ion accelerator

Abstract

The invention relates to the field of electrical automation and energy control, and discloses a dynamic energy consumption control system for cooling water of a proton and heavy ion accelerator, comprising: arranging current sensors in power distribution equipment of low energy section, medium energy section and high energy section of the proton and heavy ion accelerator to detect the operating current value of each part in real time; controlling the start and stop of a water pump, a fan and a refrigerator of a natural heat exchange module and a cold source device by monitoring the dynamic current of each part of the proton and heavy ion device and the outlet water temperature of cooling water, so as to optimize the power consumption; at the same time, making full use of the cooling capacity of the natural environment, setting the dynamic operation rules of the water pump, the fan and the refrigerator of the cold source module and the natural heat exchange module according to the state change of the proton and heavy ion accelerator and the change of the ambient temperature, so as to fully meet the heat exchange needs of the proton and heavy ion accelerator and realize full utilization of energy and reduce waste.

Description

Technical Field

[0001] The invention relates to the fields of electrical automation and energy control, and in particular to a dynamic energy consumption control system for cooling water of a proton and heavy ion accelerator. Background Art

[0002] The proton and heavy ion accelerator is a large medical device used in tumor radiotherapy. The proton and heavy ion accelerator equipment and its supporting facilities are high-energy consumption equipment. Taking the Shanghai Proton and Heavy Ion Hospital as an example, the proton and heavy ion accelerator and its cooling water system alone consume about 10 million kWh of electricity per year. Therefore, effective energy management is of great significance. However, in order to meet the normal operation of the proton and heavy ion accelerator 24 hours a day throughout the year, the cooling water system is always in full load operation. When the proton and heavy ion accelerator is in standby or shutdown state, the full load operation of the cooling water system will inevitably cause a waste of electricity. There are some interlocking signals between the cooling water system and the proton and heavy ion accelerator. If the operator's manual operation is relied on to control the start and stop of the cooling water system equipment to achieve energy saving, it will cause the safety operation risk of the proton and heavy ion accelerator. Therefore, it is very necessary to study and design a set of dynamic power consumption control system for the cooling water of the proton and heavy ion accelerator to realize the automatic start and stop control of the equipment for energy consumption optimization.

[0003] The main problems with current technology include: Currently, in order to meet the operation of the proton and heavy ion accelerator, the cooling water system is in full load operation 24 hours a day throughout the year. However, when the accelerator is on standby or shut down, the cooling water system wastes electricity and energy due to low heat generation. In addition, there is currently no complete set of power consumption monitoring and energy consumption optimization control methods. For energy consumption control, the operation of the equipment only relies on the experience of engineers and operators, which poses a risk to the safe operation of the equipment. For example, the accelerator suddenly increases its load and the operator fails to respond effectively in time, resulting in the inability to remove the accelerator heat normally, which is very likely to cause damage to the accelerator equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a dynamic energy consumption control system for cooling water of a proton and heavy ion accelerator, which can judge the operation state and heating state of the proton and heavy ion accelerator by real-time monitoring the dynamic changes of the current of the power distribution equipment of each part of the proton and heavy ion accelerator and the outlet water temperature of each part of the cooling water. At the same time, the cooling capacity of the natural environment is fully utilized, and the dynamic operation rules of the water pump, fan, and refrigerator equipment of the cold source module and the natural heat exchange module are set according to the state changes of the proton and heavy ion accelerator and the changes of the ambient temperature, so as to fully meet the heat exchange needs of the proton and heavy ion accelerator, realize the full utilization of energy and reduce waste.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a proton heavy ion accelerator cooling water dynamic energy consumption control system, comprising: arranging current sensors in the power distribution equipment of the low energy section, the middle energy section and the high energy section of the proton heavy ion accelerator to detect the operating current value of each part in real time; wherein the current sensor of the low energy section is used to detect the operating state of the radio frequency equipment, the ion source equipment and the linear accelerator equipment, the current sensor of the middle energy section is used to detect the operating state of the synchrotron accelerator equipment, and the current sensor of the high energy section is used to detect the operating state of the high energy section equipment; in the radio frequency cooling water, the ion source cooling water, the linear accelerator cooling water, the synchrotron accelerator cooling water of the proton heavy ion accelerator, the synchrotron accelerator cooling water ... Water temperature sensors are installed at the return water ends of the step accelerator cooling water and the high-energy section cooling water, and the load protection status of various parts of the proton and heavy ion accelerator is detected by the water temperature sensors; ambient temperature sensors are installed outdoors to detect ambient temperature changes in real time; these current sensors, water temperature sensors and ambient temperature sensors serve as input signals of the dynamic energy consumption control system of the proton and heavy ion accelerator cooling water; the natural heat exchange module is composed of a closed cooling tower installed outdoors and its circulating water pump, fan, spray pump and temperature sensor; the cold source system is composed of a refrigerator, an open cooling tower and fan, a cooling water pump and a chilled water pump.

[0007] As a preferred technical solution of the present invention, based on experimental analysis of the changes in distribution current and cooling water return temperature of the proton and heavy ion accelerator in the running and shutdown states, the critical current value and return water temperature value when the two states change between running and shutdown are set; based on experimental analysis of the natural heat exchange capacity of the natural heat exchange module under various ambient temperature changes, the environmental critical temperature value of the natural heat exchange module is set.

[0008] As a preferred technical solution of the present invention, when the current values ​​of all current sensors and the temperature values ​​of temperature sensors are lower than the critical values, the system defaults to entering the shutdown state, the main control system starts the timer, and counts down for 600 seconds. If after 600 seconds, the current values ​​of all current sensors and the temperature values ​​of temperature sensors are still lower than the critical values, the energy-saving mode of cooling water is started, the refrigerator, the cold source freezing water pump and the cold source cooling water pump are turned off in turn, and the three water pumps of the natural heat exchange module are changed to two water pumps; if it is detected that the current value of any current sensor and the temperature value of the temperature sensor are higher than the critical value, the system defaults to entering the running state, and the cold source freezing water pump, the cold source cooling water pump, and the refrigerator are started in turn, and the natural heat exchange module resumes the operation of the three pumps.

[0009] As a preferred technical solution of the present invention, a water temperature sensor is arranged in the natural heat exchange module to detect the water temperature of the natural heat exchange circulating water in real time; according to experimental analysis, four-level gradient temperature values ​​are set; for example, the three critical values ​​contained in the four-stage temperature are 24°C, 24.5°C and 25°C respectively, when the temperature value detected by the natural heat exchange circulating water temperature sensor is less than 24°C, the fan and spray pump of the closed cooling tower are all stopped; when the temperature value detected by the natural heat exchange circulating water temperature sensor is between 24°C and 24.5°C, the fan and spray pump of the closed cooling tower are operated as one set; when the natural heat exchange circulating water temperature sensor detects a temperature between 24°C and 24.5°C, the fan and spray pump of the closed cooling tower are operated as one set; When the temperature value detected by the heat exchange circulating water temperature sensor is between 24.5℃ and 25℃, two sets of fans and spray pumps of the closed cooling tower will run; when the temperature value detected by the natural heat exchange circulating water temperature sensor is greater than 25℃, all fans and spray pumps of the closed cooling tower will run; the operation of the fans and spray pumps of the closed cooling tower will be optimized through four-stage temperature control to achieve energy consumption optimization; the setting of the three critical temperature values ​​is based on meeting actual needs and can be changed according to specific circumstances. If there are more than three fans or spray water pumps, the number of gradients can be expanded; the number of gradients can also be reduced according to actual needs.

[0010] As a preferred technical solution of the present invention, a water temperature sensor is arranged at the cold source cooling water to detect the water temperature of the cold source cooling water in real time; according to experimental analysis, four-level gradient temperature values ​​are set; for example, the three critical values ​​contained in the four temperature sections are 30°C, 31°C and 32°C respectively, when the temperature value detected by the cold source cooling water temperature sensor is less than 30°C, all fans are stopped; when the temperature value detected by the cold source cooling water temperature sensor is between 30°C and 31°C, one fan is turned on; when the temperature value detected by the cold source cooling water temperature sensor is between 31°C and 32°C, two fans are turned on; when the temperature value detected by the cold source cooling water temperature sensor is greater than 32°C, all fans are operated; the operation of the open cooling tower fan is optimized by four-stage temperature control to achieve energy consumption optimization; the setting of the three critical temperature values ​​is based on meeting actual needs and can be changed according to specific circumstances. If there are more than three fans or spray water pumps, the number of gradients can be expanded; the number of gradients can also be reduced according to actual needs.

[0011] As a preferred technical solution of the present invention, when the ambient temperature detected by the ambient temperature sensor is greater than the critical temperature, the main controller starts a 1200-second timing. When the ambient temperature detected by the ambient temperature sensor is still greater than the critical temperature after more than 1200 seconds, the ambient high temperature mode is started, the water inlet valve of the closed cooling tower is closed, and the bypass valve of the closed cooling tower is in a fully open state; at the same time, the fans and spray pumps of all closed cooling towers stop running; when the ambient temperature detected by the ambient temperature sensor is lower than the critical temperature, the natural heat exchange module is restored; through this method, energy waste caused by the natural heat exchange module absorbing heat from the external environment due to excessively high ambient temperature can be avoided.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By real-time monitoring of the dynamic changes in current of each part of the proton and heavy ion accelerator's power distribution equipment and the outlet water temperature of each part's cooling water, the operating status and heating status of the proton and heavy ion accelerator can be judged; at the same time, the cooling capacity of the natural environment is fully utilized, and the dynamic operating rules of the water pump, fan, and refrigerator equipment of the cold source module and the natural heat exchange module are set according to the changes in the state of the proton and heavy ion accelerator and the changes in the ambient temperature, so as to fully meet the heat exchange needs of the proton and heavy ion accelerator while achieving full utilization of energy and reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall scheme of the present invention.

[0016] In the figure: 1. High energy section power distribution equipment; 2. Medium energy section power distribution equipment; 3. Low energy section power distribution equipment; 4. High energy section current meter; 5. Medium energy section current meter; 6. Low energy section current meter; 7. High energy section equipment; 8. Synchrotron equipment; 9. Linear accelerator equipment; 10. Ion source equipment; 11. Radio frequency equipment; 12. Ambient temperature sensor; 13. High energy section cooling return water temperature sensor; 14. Synchrotron cooling return water temperature sensor; 15. Linear accelerator cooling return water temperature sensor; 16. Ion source cooling return water temperature sensor; 17. Radio frequency cooling return water temperature sensor degree sensor; 18. Closed-circulation cooling water for high energy section; 19. Closed-circulation cooling water for synchrotron; 20. Closed-circulation cooling water for linear accelerator; 21. Closed-circulation cooling water for ion source; 22. Closed-circulation cooling water for radio frequency; 23. Heat exchange equipment V; 24. Heat exchange equipment IV; 25. Heat exchange equipment III; 26. Heat exchange equipment II; 27. Heat exchange equipment I; 28. Heat exchange equipment X; 29. ​​Heat exchange equipment IX; 30. Heat exchange equipment VIII; 31. Heat exchange equipment VII; 32. Heat exchange equipment VI; 33. Water inlet valve for closed cooling tower; 34. Bypass valve for closed cooling tower; 35. Spray water pump for closed cooling tower I; 36. Fan for closed cooling tower I; 37. Spray water pump for closed cooling tower II; 38. Fan for closed cooling tower II; 39. Spray water pump for closed cooling tower III; 40. Fan for closed cooling tower III; 41. Water pump for natural heat exchange module I; 42. Water pump for natural heat exchange module II; 43. Water pump for natural heat exchange module III; 44. Cold source chilled water pump I; 45. Cold source chilled water pump II; 46. Chiller I; 47. Chiller II; 48. Cold source cooling water pump I; 49. Cold source cooling water pump II; 50. Fan for open cooling tower I; 5 1. Open cooling tower II fan; 52. Open cooling tower III fan; 53. Current signal collector; 54. Temperature signal collector; 55. Cold source module controller; 56. Network signal transmission unit I; 57. Network signal transmission unit II; 58. Network signal transmission unit III; 59. Natural heat exchange module controller; 60. Network signal transmission unit IV; 61. Data switch; 62. Main controller; 63. Data server computer; 64. Natural heat exchange circulating water temperature sensor; 65. Cold source chilled water temperature sensor; 66. Cold source cooling water temperature sensor. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] Example 1

[0019] The present invention Figure 1As shown, the present invention is a proton heavy ion accelerator cooling water dynamic energy consumption control system, which is applied to the dynamic energy consumption control and optimization of the proton heavy ion accelerator cooling water system, and can achieve energy consumption control and optimization while meeting the accelerator heat exchange requirements and temperature control, such as Figure 1 As shown, it specifically includes the following structures: high energy section power distribution equipment 1, medium energy section power distribution equipment 2, low energy section power distribution equipment 3, high energy section current meter 4, medium energy section current meter 5, low energy section current meter 6, high energy section equipment 7, synchrotron equipment 8, linear accelerator equipment 9, ion source equipment 10, radio frequency equipment 11, ambient temperature sensor 12, high energy section cooling return water temperature sensor 13, synchrotron cooling return water temperature sensor 14, linear accelerator cooling return water temperature sensor 15, ion source cooling return water temperature sensor 16, radio frequency Cooling return water temperature sensor 17, high energy section closed circulation cooling water 18, synchrotron closed circulation cooling water 19, linear accelerator closed circulation cooling water 20, ion source closed circulation cooling water 21, radio frequency closed circulation cooling water 22, heat exchange equipment V 23, heat exchange equipment IV 24, heat exchange equipment III 25, heat exchange equipment II 26, heat exchange equipment I 27, heat exchange equipment X 28, heat exchange equipment IX 29, heat exchange equipment VIII 30, heat exchange equipment VII 31, heat exchange equipment VI 32, closed cooling tower water inlet valve 33, closed cooling tower bypass valve Door 34, spray water pump for closed cooling tower I 35, fan for closed cooling tower I 36, spray water pump for closed cooling tower II 37, fan for closed cooling tower II 38, spray water pump for closed cooling tower III 39, fan for closed cooling tower III 40, water pump for natural heat exchange module I 41, water pump for natural heat exchange module II 42, water pump for natural heat exchange module III 43, cold source chilled water pump I 44, cold source chilled water pump II 45, freezer I 46, freezer II 47, cold source cooling water pump I 48, cold source cooling water pump II 49, fan for open cooling tower I 50 , open cooling tower II fan 51, open cooling tower III fan 52, current signal collector 53, temperature signal collector 54, cold source module controller 55, network signal transmission unit I 56, network signal transmission unit II 57, network signal transmission unit III 58, natural heat exchange module controller 59, network signal transmission unit IV 60, data switch 61, main controller 62, data server computer 63, natural heat exchange circulating water temperature sensor 64, cold source chilled water temperature sensor 65, cold source cooling water temperature sensor 66.

[0020] Specifically, the low-energy section power distribution equipment 3 is used for power distribution 11 of the linear accelerator equipment 9, the ion source equipment 10 and the radio frequency equipment, and the low-energy section ammeter 6 is used to monitor the operating current value of the low-energy section power distribution equipment 3 in real time; the medium-energy section power distribution equipment 2 is used for power distribution of the synchrotron equipment 8, and the medium-energy section ammeter 5 is used to monitor the current value of the medium-energy section power distribution equipment 2 in real time; the high-energy section power distribution equipment 1 is used for power distribution of the high-energy section equipment 7, and the high-energy section ammeter 4 is used to monitor the current value of the high-energy section power distribution equipment 1 in real time; the real-time data of the high-energy section ammeter 4, the medium-energy section ammeter 5 and the low-energy section ammeter 6 are collected in real time through the current signal collector 53.

[0021] The signals of the high energy range ammeter 4 , the medium energy range ammeter 5 , and the low energy range ammeter 6 are connected to the current signal collector 53 , and the signals are transmitted to the data switch 61 through the network signal transmission unit I 56 .

[0022] The RF closed-loop cooling water 22 is used to cool the RF device 11, and the heating state of the RF device 11 is monitored in real time by setting the RF cooling return water temperature sensor 17; the ion source closed-loop cooling water 21 is used to cool the ion source device 10, and the heating state of the ion source device 10 is monitored in real time by setting the ion source cooling return water temperature sensor 16; the linear accelerator closed-loop cooling water 20 is used to cool the linear accelerator device 9, and the heating state of the linear accelerator device 9 is monitored in real time by setting the linear accelerator cooling return water temperature sensor 15; the synchrotron closed-loop cooling water 19 is used to cool the synchrotron device 8, and the heating state of the synchrotron device 8 is monitored in real time by setting the synchrotron cooling return water temperature sensor 14; the high-energy section closed-loop cooling water 18 is used to cool the high-energy section device 7, and the heating state of the high-energy section device 7 is monitored in real time by setting the high-energy section cooling return water temperature sensor 13. The real-time data of the high-energy section cooling return water temperature sensor 13, the synchrotron cooling return water temperature sensor 14, the linear accelerator cooling return water temperature sensor 15, the ion source cooling return water temperature sensor 16 and the radio frequency cooling return water temperature sensor 17 are collected by the temperature signal collector 54.

[0023] The signals of the ambient temperature sensor 12, the high energy section cooling return water temperature sensor 13, the synchrotron cooling return water temperature sensor 14, the linear accelerator cooling return water temperature sensor 15, the ion source cooling return water temperature sensor 16, and the radio frequency cooling return water temperature sensor 17 are connected to the temperature signal collector 54 and transmitted to the data switch 61 through the network signal transmission unit II 57.

[0024] Heat exchange equipment V23 and heat exchange equipment X28 are used for heat exchange of high-energy section closed-circulation cooling water 18. Heat exchange equipment V23 and heat exchange equipment X28 are connected by natural heat exchange circulating water, and heat exchange equipment X28 is connected to cold source chilled water; heat exchange equipment IV24 and heat exchange equipment IX29 are used for heat exchange of synchrotron closed-circulation cooling water 19. Heat exchange equipment IV24 and heat exchange equipment IX29 are connected by natural heat exchange circulating water, and heat exchange equipment IX29 is connected to cold source chilled water; heat exchange equipment III25 and heat exchange equipment VIII30 are used for heat exchange of linear accelerator closed-circulation cooling water 20. Equipment III 25 and heat exchange equipment VIII 30 are connected by natural heat exchange circulating water, and heat exchange equipment VIII 30 is connected to cold source chilled water; heat exchange equipment II 26 and heat exchange equipment VII 31 are used for heat exchange of ion source closed circulation cooling water 21, heat exchange equipment II 26 and heat exchange equipment VII 31 are connected by natural heat exchange circulating water, and heat exchange equipment VII 31 is connected to cold source chilled water; heat exchange equipment I 27 and heat exchange equipment VI 32 are used for heat exchange of radio frequency closed circulation cooling water 22, heat exchange equipment I 27 and heat exchange equipment VI 32 are connected by natural heat exchange circulating water, and heat exchange equipment VI 32 is connected to cold source chilled water.

[0025] The natural heat exchange circulating water module is composed of a closed cooling tower water inlet valve 33, a closed cooling tower bypass valve 34, a closed cooling tower I spray water pump 35, a closed cooling tower I fan 36, a closed cooling tower II spray water pump 37, a closed cooling tower II fan 38, a closed cooling tower III spray water pump 39, a closed cooling tower III fan 40, a natural heat exchange module water pump I 41, a natural heat exchange module water pump II 42, and a natural heat exchange module water pump III 43, wherein , natural heat exchange module water pump I 41, natural heat exchange module water pump II 42, natural heat exchange module water pump III 43 provide power for natural heat exchange circulating water, closed cooling tower I spray water pump 35, closed cooling tower II spray water pump 37, closed cooling tower III spray water pump 39 provide power for spray cooling in the closed cooling tower, closed cooling tower I fan 36, closed cooling tower II fan 38, closed cooling tower III fan 40 provide air cooling in the closed cooling tower. The closed cooling tower water inlet valve 33 is used to close the passage of natural heat exchange circulating water to the closed cooling tower when the ambient temperature is too high and the natural heat exchange cooling water cannot dissipate heat. When the closed cooling tower water inlet valve 33 is closed, the closed cooling tower bypass valve 34 is in a fully open state. The natural heat exchange circulating water temperature sensor 64 is used to detect the temperature of the natural heat exchange circulating water in real time.

[0026] All control signals of the natural heat exchange circulating water module are connected to the natural heat exchange module controller 59 and transmitted to the data switch 61 through the network signal transmission unit IV 60 .

[0027] The cold source module includes: cold source chilled water pump I 44, cold source chilled water pump II 45, freezer I 46, freezer II 47, cold source cooling water pump I 48, cold source cooling water pump II 49, open cooling tower III fan 50, open cooling tower II fan 51, open cooling tower III fan 52. The chilled water temperature is detected in real time by the cold source chilled water temperature sensor 65, and the cold source cooling water temperature is detected in real time by the cold source cooling water temperature sensor 66.

[0028] All control signals of the cold source module are connected to the cold source module controller 55 and transmitted to the data switch 61 through the network signal transmission unit III 58 .

[0029] The data switch 61 is connected to the main controller 62. All data are fed back to the start and stop signals of each water pump, valve, fan, and refrigerator after being logically controlled by the main controller 62. All operation data are stored in the data server computer 63.

[0030] By experimentally analyzing the current data of the high-energy section ammeter 4, the medium-energy section ammeter 5, and the low-energy section ammeter 6 in the proton and heavy ion accelerator in operation and standby states, as well as the water temperature data of the high-energy section cooling return water temperature sensor 13, the synchrotron cooling return water temperature sensor 14, the linear accelerator cooling return water temperature sensor 15, the ion source cooling return water temperature sensor 16, and the radio frequency cooling return water temperature sensor 17 in the operation and standby states, the critical values ​​of the current and temperature in the two states are determined. For example: the current limit values ​​of the current data of the high-energy section ammeter 4, the medium-energy section ammeter 5, and the low-energy section ammeter 6 are I1, I2, and I3 respectively; the critical temperature values ​​of the high-energy section cooling return water temperature sensor 13, the synchrotron cooling return water temperature sensor 14, the linear accelerator cooling return water temperature sensor 15, the ion source cooling return water temperature sensor 16, and the radio frequency cooling return water temperature sensor 17 are T1, T2, T3, T4, and T5 respectively.

[0031] Through experimental analysis, the critical temperature at which the natural heat exchange circulating water can achieve heat exchange is the critical value T6 of the ambient temperature detected by the ambient temperature sensor 12. That is, when the ambient temperature is greater than T6, the closed cooling tower cannot dissipate heat.

[0032] When all current values ​​and temperature values ​​are lower than the critical temperature, the accelerator can be considered to be in standby mode. At this time, the main controller 62 starts timing for 600 seconds. If any current or temperature value is higher than the critical value within 600 seconds, the timer is reset. If after 600 seconds, all currents and temperatures are still lower than the critical value, the refrigerator, cold source cooling water pump and cold source freezing water pump are turned off in sequence. The natural heat exchange module is changed from three pumps to two pumps, and the system enters energy-saving mode. In energy-saving mode, when any current or temperature value is detected to be higher than the critical value, the cold source cooling water pump, cold source freezing water pump and refrigerator are turned on in sequence, and the natural heat exchange module is changed from two pumps to three pumps, and the system enters normal operation.

[0033] In the energy-saving mode, the fan 50 of the open cooling tower III, the fan 51 of the open cooling tower II, and the fan 52 of the open cooling tower III are in a stopped state. In the normal operation state, the fan is started and stopped in four stages according to the temperature value detected by the cold source cooling water temperature sensor 66. For example, the three critical values ​​contained in the four temperature stages are 30°C, 31°C and 32°C respectively. When the temperature value detected by the cold source cooling water temperature sensor 66 is less than 30°C, all fans are stopped; when the temperature value detected by the cold source cooling water temperature sensor 66 is between 30°C and 31°C, one fan is turned on; when the temperature value detected by the cold source cooling water temperature sensor 66 is between 31°C and 32°C, two fans are turned on; when the temperature value detected by the cold source cooling water temperature sensor 66 is greater than 32°C, all fans are running. The operation of the open cooling tower fan is optimized through four-stage temperature control to achieve energy consumption optimization.

[0034] The natural heat exchange module controls the start and stop of the closed cooling tower I spray water pump 35, the closed cooling tower I fan 36, the closed cooling tower II spray water pump 37, the closed cooling tower II fan 38, the closed cooling tower III spray water pump 39, and the closed cooling tower III fan 40 in four sections according to the temperature value detected by the natural heat exchange circulating water temperature sensor 64. For example, the three critical values ​​included in the four-stage temperature are 24°C, 24.5°C and 25°C respectively. When the temperature value detected by the natural heat exchange circulating water temperature sensor 64 is less than 24°C, the fan and spray pump of the closed cooling tower are all stopped; when the temperature value detected by the natural heat exchange circulating water temperature sensor 64 is between 24°C and 24.5°C, the fan and spray pump of the closed cooling tower are operated in one set; when the temperature value detected by the natural heat exchange circulating water temperature sensor 64 is between 24.5°C and 25°C, the fan and spray pump of the closed cooling tower are operated in two sets; when the temperature value detected by the natural heat exchange circulating water temperature sensor 64 is greater than 25°C, the fan and spray pump of the closed cooling tower are all operated. The operation of the fan and spray pump of the closed cooling tower is optimized through four-stage temperature control to achieve energy consumption optimization.

[0035] When the ambient temperature detected by the 12 ambient temperature sensor is greater than the critical temperature, the 62 main controller starts the 1200 second timing. When the ambient temperature detected by the 12 ambient temperature sensor is still greater than the critical temperature after 1200 seconds, the ambient high temperature mode is started, the 33 closed cooling tower water inlet valve is closed, and the 34 closed cooling tower bypass valve is in a fully open state. At the same time, the fans and spray pumps of all closed cooling towers stop running. When the ambient temperature detected by the 12 ambient temperature sensor is lower than the critical temperature, the natural heat exchange module is restored.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A proton and heavy ion accelerator cooling water dynamic energy consumption control system, characterized in that: include: Current sensors are arranged in the power distribution equipment of the low-energy section, medium-energy section and high-energy section of the proton heavy ion accelerator to detect the operating current value of each part in real time; wherein, the current sensor of the low-energy section is used to detect the operating status of the radio frequency equipment, the ion source equipment and the linear accelerator equipment, the current sensor of the medium-energy section is used to detect the operating status of the synchrotron equipment, and the current sensor of the high-energy section is used to detect the operating status of the high-energy section equipment; water temperature sensors are arranged at the return water end of the radio frequency cooling water, ion source cooling water, linear accelerator cooling water, synchrotron cooling water and high-energy section cooling water of the proton heavy ion accelerator, and the load protection status of each part of the proton heavy ion accelerator is detected by the water temperature sensor; an ambient temperature sensor is arranged outdoors to detect the change of ambient temperature in real time; these current sensors, water temperature sensors and ambient temperature sensors are used as input signals of the dynamic energy consumption control system of the cooling water of the proton heavy ion accelerator; the natural heat exchange module is composed of a closed cooling tower installed outdoors and its circulating water pump, fan, spray pump and temperature sensor; the cold source system is composed of a refrigerator, an open cooling tower and fan, a cooling water pump and a freezing water pump; According to the experimental analysis of the distribution current changes and cooling water return temperature changes of the proton and heavy ion accelerator in the running and shutdown states, the critical current value and return water temperature value when the two states change between running and shutdown are set; according to the experimental analysis of the natural heat exchange capacity of the natural heat exchange module under the state of ambient temperature change, the environmental critical temperature value of the natural heat exchange module heat exchange is set; when the current values ​​of all current sensors and the temperature values ​​of the temperature sensors are lower than the critical values, the system defaults to entering the shutdown state, the main control system starts the timer, and counts down for 600 seconds. If the current values ​​of all current sensors and the temperature values ​​of the temperature sensors are still lower than the critical values ​​after 600 seconds, the energy-saving mode of the cooling water is started, the refrigerator, the cold source freezing water pump and the cold source cooling water pump are turned off in turn, and the three water pumps of the natural heat exchange module are changed to two water pumps; if the current value of any current sensor and the temperature value of the temperature sensor are detected to be higher than the critical value, the system defaults to entering the running state, and the cold source freezing water pump, the cold source cooling water pump, and the refrigerator are started in turn, and the natural heat exchange module resumes the operation of the three pumps.

2. A proton and heavy ion accelerator cooling water dynamic energy consumption control system according to claim 1, characterized in that: A water temperature sensor is set in the natural heat exchange module to detect the temperature of the natural heat exchange circulating water in real time; according to experimental analysis, a four-level gradient temperature value is set; the three critical values ​​contained in the four-stage temperature are 24°C, 24.5°C and 25°C respectively. When the temperature value detected by the natural heat exchange circulating water temperature sensor is less than 24°C, the fan and spray pump of the closed cooling tower are all stopped; When the temperature value detected by the natural heat exchange circulating water temperature sensor is between 24℃ and 24.5℃, the fan and spray pump of the closed cooling tower will run one set; When the temperature value detected by the natural heat exchange circulating water temperature sensor is between 24.5℃ and 25℃, the fan and spray pump of the closed cooling tower run in two sets; When the temperature value detected by the natural heat exchange circulating water temperature sensor is greater than 25°C, the fans and spray pumps of the closed cooling tower will all be in operation; the operation of the fans and spray pumps of the closed cooling tower will be optimized through four-stage temperature control to achieve energy consumption optimization; the three critical temperature values ​​are set to meet actual needs and can be changed according to specific circumstances. If there are more than three fans or spray water pumps, the number of gradients can be expanded; the number of gradients can be reduced according to actual needs.

3. A proton and heavy ion accelerator cooling water dynamic energy consumption control system according to claim 1, characterized in that: A water temperature sensor is installed on the cold source cooling water to detect the water temperature of the cold source cooling water in real time; according to experimental analysis, four-level gradient temperature values ​​are set; the three critical values ​​included in these four temperature ranges are 30℃, 31℃ and 32℃ respectively. When the temperature value detected by the cold source cooling water temperature sensor is less than 30℃, all fans are stopped; when the temperature value detected by the cold source cooling water temperature sensor is between 30℃ and 31℃, one fan is turned on; When the temperature detected by the cold source cooling water temperature sensor is between 31°C and 32°C, two fans are turned on; when the temperature detected by the cold source cooling water temperature sensor is greater than 32°C, all fans are running; the operation of the open cooling tower fan is optimized through four-stage temperature control to achieve energy consumption optimization; the three critical temperature values ​​are set to meet actual needs and can be changed according to specific circumstances. If there are more than three fans or spray water pumps, the number of gradients can be expanded; the number of gradients can be reduced according to actual needs.

4. A proton and heavy ion accelerator cooling water dynamic energy consumption control system according to claim 1, characterized in that: When the ambient temperature detected by the ambient temperature sensor is greater than the critical temperature, the main controller starts a 1200-second timing. When the ambient temperature detected by the ambient temperature sensor is still greater than the critical temperature after 1200 seconds, the ambient high temperature mode is started, the water inlet valve of the closed cooling tower is closed, and the bypass valve of the closed cooling tower is in a fully open state; at the same time, all fans and spray pumps of the closed cooling tower stop running; when the ambient temperature detected by the ambient temperature sensor is lower than the critical temperature, the natural heat exchange module is restored; through this method, energy waste caused by the natural heat exchange module absorbing heat from the external environment due to excessively high ambient temperature can be avoided.

Images