CN113916024A - Management method, device and equipment of cooling tower, cooling tower and temperature control system - Google Patents
Management method, device and equipment of cooling tower, cooling tower and temperature control system Download PDFInfo
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- CN113916024A CN113916024A CN202111248080.9A CN202111248080A CN113916024A CN 113916024 A CN113916024 A CN 113916024A CN 202111248080 A CN202111248080 A CN 202111248080A CN 113916024 A CN113916024 A CN 113916024A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
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Abstract
The invention relates to the technical field of cooling tower management, in particular to a method, a device, equipment, a cooling tower and a temperature control system for managing the cooling tower, wherein the method comprises the steps of detecting current operation information; judging whether the current operation information meets tower processing conditions; wherein the column processing conditions comprise plus column processing conditions and minus column processing conditions; if the current operation information meets the tower adding processing condition, starting a tower adding process; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process. By adopting the technical scheme of the invention, the number of the cooling towers can be increased or reduced according to the current actual operation information, the energy consumption caused by the low-frequency operation of the cooling towers is avoided, and the energy consumption is further remarkably saved.
Description
Technical Field
The invention relates to the technical field of cooling tower management, in particular to a method, a device and equipment for managing a cooling tower, the cooling tower and a temperature control system.
Background
The cooling tower is applied to a refrigeration system, and is mainly a device for dissipating waste heat through evaporation by utilizing the contact of a circulating medium and air. The circulating medium is typically water. When the refrigeration system comprises a plurality of cooling towers, in order to achieve the purpose of reducing energy consumption, in the prior art, the working frequency of a fan in the cooling tower is determined according to the load capacity of the refrigeration system. For example, when the load capacity of the refrigeration system is low, the frequency of the cooling tower fan is reduced; on the contrary, when the load of the refrigerating system is larger, the frequency of the fan of the cooling tower is increased.
However, in the current control mode, the number of the cooling towers which are put into use is not changed, and the energy consumption is not remarkably saved.
Disclosure of Invention
In view of the above, the present invention provides a method, an apparatus, a device, a cooling tower and a temperature control system for managing a cooling tower, so as to overcome the problem that the energy consumption of the cooling tower is not significantly reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a method for managing a cooling tower, including:
detecting current operation information;
judging whether the current operation information meets tower processing conditions; wherein the column processing conditions comprise plus column processing conditions and minus column processing conditions;
if the current operation information meets the tower adding processing condition, starting a tower adding process; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process.
Further, the above method for managing a cooling tower, wherein the current operation information includes:
at least one of the number of currently operating cooling towers, the average frequency of the currently operating cooling tower fans, the interval time from the last tower addition and the interval time from the last tower subtraction.
Further, the method for managing a cooling tower described above, wherein the determining whether the current operation information satisfies the tower processing condition includes:
judging whether the number of the currently-operated cooling towers is less than the preset maximum number of the cooling towers allowed to operate, whether the average frequency of fans of the currently-operated cooling towers is greater than the preset tower adding frequency, whether the interval time from the last tower adding is greater than the preset tower adding interval time, and whether the number of the currently-operated cooling towers is less than the number of the available cooling towers;
if the number of the currently-operated cooling towers is smaller than the preset maximum number of the cooling towers allowed to operate, the average frequency of the fans of the currently-operated cooling towers is larger than the preset tower adding frequency, the interval time from the last tower adding is larger than the preset tower adding interval time, and the number of the currently-operated cooling towers is smaller than the number of the available cooling towers, the currently-operated cooling towers are in a tower adding preparation state;
and if the tower adding preparation state lasts for a first preset time, the current operation information meets the tower adding processing condition.
Further, the method for managing a cooling tower described above, wherein the determining whether the current operation information satisfies the tower processing condition includes:
judging whether the number of the currently operated cooling towers is smaller than the minimum starting requirement number of the cooling towers or not, and whether the number of the currently operated cooling towers is smaller than the number of the available cooling towers or not;
and if the number of the currently operated cooling towers is smaller than the minimum starting requirement number of the cooling towers, and the number of the currently operated cooling towers is smaller than the number of the available cooling towers, indicating that the current operation information meets the tower adding processing condition.
Further, the method for managing a cooling tower described above, wherein the determining whether the current operation information satisfies the tower processing condition includes:
judging whether the number of the currently operating cooling towers is greater than the minimum starting requirement number of the cooling towers, whether the average frequency of the currently operating cooling tower fans is less than a preset tower reduction frequency, and whether the interval time from the last tower reduction is greater than a preset tower reduction interval time;
if the number of the currently operating cooling towers is larger than the minimum starting requirement number of the cooling towers, the average frequency of the currently operating cooling tower fans is larger than a preset tower reduction frequency, and the interval time from the last tower reduction is smaller than a preset tower reduction interval time, the currently operating cooling towers are in a tower reduction preparation state;
and if the tower reduction preparation state continues for a second preset time, the current operation information meets the tower reduction processing condition.
Further, the method for managing a cooling tower described above, wherein the determining whether the current operation information satisfies the tower processing condition includes:
judging whether the minimum starting requirement quantity of the cooling tower is zero or not;
and if the minimum starting requirement number of the cooling tower is zero, the current operation information meets the tower reduction processing condition.
Further, in the above method for managing a cooling tower, the calculation formula of the average frequency of the currently operating cooling tower fan is:
wherein the content of the first and second substances,
is the average frequency, alpha, of the currently operating cooling tower fannIs the opening of the control valve, f, of each cooling tower currently in operationnIs the output frequency of each cooling tower currently in operation.
Further, the method for managing a cooling tower further includes:
judging whether the current operation information meets fan processing conditions or not; the fan processing conditions comprise fan starting conditions and fan closing conditions;
if the current operation information meets the fan starting condition, starting a corresponding fan at a preset frequency; and if the current operation information meets the fan closing condition, closing the corresponding fan.
Further, the above method for managing a cooling tower, wherein the current operation information includes:
at least one of the opening degree of a control valve of the currently running cooling tower, the running state of a cooling water pump, the running state of a compressor, the return water temperature of a cooling main pipe and the outlet water temperature of the cooling tower.
Further, the method for managing a cooling tower, where the determining whether the current operation information meets the fan processing condition, includes:
judging whether the opening of a control valve of the currently running cooling tower is smaller than a preset opening, whether the running state of the cooling water pump is closed, whether the running state of the compressor is closed, or whether the return water temperature of the cooling header pipe is smaller than the preset closing temperature of the cooling tower;
if the opening degree of a control valve of a first target cooling tower in the currently running cooling tower is smaller than a preset opening degree, indicating that all fans in the first target cooling tower meet the fan closing condition; if the operation state of the cooling water pump is closed, indicating that fans in all cooling towers which are currently operated meet the fan closing condition; if the running state of the compressor is off, indicating that fans in all cooling towers running currently meet the fan off condition; and if the return water temperature of the cooling main pipe is less than the preset closing temperature of the cooling tower and the duration time reaches a third preset time, indicating that the fans in all the currently running cooling towers meet the fan closing condition.
Further, the above method for managing a cooling tower, where the determining whether the current operation information meets the fan processing condition, further includes:
if the opening degree of a control valve of a third target cooling tower is larger than or equal to a preset opening degree in the currently running cooling tower, the outlet water temperature of the third target cooling tower is larger than the preset opening temperature of the cooling tower, and the running state of the cooling water pump is started, the cooling water pump is in a machine reduction preparation state;
and if the engine reduction preparation state lasts for a fourth preset time, all the fans in the third target cooling tower meet the fan starting condition.
Further, the above management method for a cooling tower further includes, after the corresponding fan is turned on at the preset frequency:
re-determining the operating frequency of the fan every other preset time period so as to enable the fan to operate according to the re-determined operating frequency; wherein the re-determined operating frequency is the sum of the operating frequency of the previous time period and the frequency gain value.
Further, the method for managing a cooling tower further includes:
judging whether the difference value between the medium temperature in the pipeline and a preset medium target temperature is smaller than a preset deviation temperature or not, and whether the difference value between the medium temperature and the preset medium target temperature is larger than a frequency PID dead zone set value of the fan or not;
if the difference between the medium temperature and the preset medium target temperature is smaller than the preset deviation temperature, and the difference between the medium temperature and the preset medium target temperature is larger than the frequency PID dead zone set value of the fan, the frequency gain value is as follows:
wherein f is increased to the frequency gain value, T1Is the temperature of the medium, T2Is preset as describedSetting a medium target temperature T as a preset deviation temperature, modifying f as a frequency gain value correction coefficient, wherein the upper limit of f is a preset frequency PID gain upper limit value, P is the P value of the frequency PID, and I is the I value of the frequency PID;
and if the difference value between the medium temperature and the preset medium target temperature is greater than or equal to the preset deviation temperature, and/or the difference value between the medium temperature and the preset medium target temperature is less than or equal to the frequency PID dead zone set value of the fan, the frequency gain value is a preset frequency PID gain upper limit value.
Further, in the management method of the cooling tower, the pipeline is a water outlet pipeline of each cooling tower; correspondingly, the frequency gain value is the frequency gain value of a fan in the cooling tower corresponding to the pipeline; or
The pipelines are return water main pipes of all cooling towers; correspondingly, the frequency gain value is the frequency gain value of the fans in all the cooling towers.
In another aspect, the present invention further provides a management device for a cooling tower, including:
the detection module is used for detecting the current operation information;
the judging module is used for judging whether the current operation information meets the tower processing condition; wherein the column processing conditions comprise plus column processing conditions and minus column processing conditions;
the processing module is used for starting a tower adding process if the current operation information meets the tower adding processing condition; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process.
In another aspect, the present invention further provides a management device for a cooling tower, including a processor and a memory, where the processor is connected to the memory:
the processor is used for calling and executing the program stored in the memory;
the memory is configured to store the program, and the program is configured to at least execute the management method of the cooling tower according to any one of the above embodiments.
In another aspect, the invention further provides a cooling tower, which comprises the management equipment of the cooling tower.
In another aspect, the present invention further provides a temperature control system, including the cooling tower described above.
The invention relates to a management method, a device, equipment, a cooling tower and a temperature control system of the cooling tower, wherein the method comprises the steps of detecting current operation information; judging whether the current operation information meets tower processing conditions; wherein the column processing conditions comprise plus column processing conditions and minus column processing conditions; if the current operation information meets the tower adding processing condition, starting a tower adding process; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process. By adopting the technical scheme of the invention, the number of the cooling towers can be increased or reduced according to the current actual operation information, the energy consumption caused by the low-frequency operation of the cooling towers is avoided, and the energy consumption is further remarkably saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart provided by an embodiment of a method for managing a cooling tower according to the present invention;
FIG. 2 is a flow chart provided by another embodiment of a method for managing a cooling tower of the present invention;
FIG. 3 is a block diagram of a cooling tower according to an embodiment of a method for managing a cooling tower of the present invention;
FIG. 4 is a schematic structural view of a management apparatus for a cooling tower according to an embodiment of the present invention;
fig. 5 is a schematic structural view provided by an embodiment of the management apparatus of a cooling tower of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
FIG. 1 is a flow chart of a method for managing a cooling tower according to an embodiment of the present invention. As shown in fig. 1, the present embodiment may include the following steps:
and S11, detecting the current operation information.
In this embodiment, the current operation information may be detected. In an alternative embodiment, the current operation information may include at least one of the number of currently operating cooling towers, the average frequency of the currently operating cooling tower fans, the interval time from the last tower addition and the interval time from the last tower subtraction.
Wherein, the number of the cooling towers currently running, the interval time from the last tower addition and the interval time from the last tower subtraction can be obtained by monitoring. And the average frequency of the currently operating cooling tower fan can be determined by the following formula:
wherein the content of the first and second substances,
is the average frequency, alpha, of the currently operating cooling tower fannIs the opening of the control valve, f, of each cooling tower currently in operationnIs the output frequency of each cooling tower currently in operation. Generally, the average frequency range of the fan of the cooling tower in current operation is 0-50 Hz.
And S12, judging whether the current operation information meets the tower processing condition.
After determining the current operational information, it may be determined whether the current operational information satisfies the tower processing conditions. Wherein the column processing conditions include plus column processing conditions and minus column processing conditions.
In an alternative embodiment, it may be determined whether the current operational information satisfies the tower processing condition by:
judging whether the number of the currently-operated cooling towers is less than the preset maximum number of the cooling towers allowed to operate, whether the average frequency of fans of the currently-operated cooling towers is greater than the preset tower adding frequency, whether the interval time from the last tower adding is greater than the preset tower adding interval time, and whether the number of the currently-operated cooling towers is less than the number of the available cooling towers;
if the number of the currently operating cooling towers is smaller than the preset maximum number of the cooling towers allowed to operate, the average frequency of the fans of the currently operating cooling towers is larger than the preset tower adding frequency, the interval time from the last tower adding is larger than the preset tower adding interval time, and the number of the currently operating cooling towers is smaller than the number of the available cooling towers, the current cooling towers are in a tower adding preparation state;
if the tower adding preparation state can last for the first preset time, the current operation information meets the tower adding processing condition.
The number of currently operating cooling towers, the average frequency of currently operating cooling tower fans and the interval time from the last tower addition in the current operation information can be used as the criteria for determining whether the current operation information meets the tower addition processing conditions. When the number of the cooling towers which are operated currently is smaller than the preset maximum number of the cooling towers which are allowed to operate, the average frequency of fans of the cooling towers which are operated currently is larger than the preset tower adding frequency, the interval time from the last tower adding is larger than the preset tower adding interval time, the number of the cooling towers which are operated currently is smaller than the number of the available cooling towers, and the duration time which meets the four conditions simultaneously can reach the first preset time, the current operation information is shown to meet the tower adding processing condition.
The preset maximum number of cooling towers allowed to operate, the preset tower adding frequency, the preset tower adding interval time and the first preset time can be set according to actual conditions, and the embodiment is not limited. For example, the preset maximum number of cooling towers allowed to operate is 10, the preset tower adding frequency is 48Hz, the preset tower adding interval time is 30 minutes, and the first preset time can be 1 minute. The number of available cooling towers is the number of cooling towers that are currently operating normally and are not currently in a fault state or disabled state and can be placed in a normal operating state upon receiving an open operating command.
In an alternative embodiment, it may also be determined whether the current operation information satisfies the tower-adding processing condition by:
judging whether the number of the currently operated cooling towers is smaller than the minimum starting requirement number of the cooling towers or not and whether the number of the currently operated cooling towers is smaller than the number of the available cooling towers or not;
and if the number of the currently operated cooling towers is less than the minimum starting requirement number of the cooling towers, and the number of the currently operated cooling towers is less than the number of the available cooling towers, indicating that the current operation information meets the tower adding processing condition.
Specifically, the number of currently operating cooling towers alone may be used as a criterion for determining whether the current operation information satisfies the tower-adding process condition. When the number of the currently operated cooling towers is smaller than the minimum starting requirement number of the cooling towers, and the number of the currently operated cooling towers is smaller than the number of the available cooling towers, the current operation information meets the tower adding processing condition.
The minimum starting requirement number of the cooling tower can be determined according to the actual working condition of the cooling tower and the refrigerating load of a system where the cooling tower is located.
In an alternative embodiment, it may be determined whether the current operational information satisfies the tower-reduction processing condition by:
judging whether the number of the currently operating cooling towers is greater than the minimum starting requirement number of the cooling towers, whether the average frequency of the currently operating cooling tower fans is less than the preset tower reduction frequency, and whether the interval time from the last tower reduction is greater than the preset tower reduction interval time;
if the number of the currently operating cooling towers is larger than the minimum starting requirement number of the cooling towers, the average frequency of the currently operating cooling tower fans is larger than the preset tower reduction frequency, and the interval time from the last tower reduction is smaller than the preset tower reduction interval time, the currently operating cooling tower fans are in a tower reduction preparation state;
and if the tower reduction preparation state lasts for the second preset time, the current operation information meets the tower reduction processing condition.
Specifically, the number of currently operating cooling towers, the average frequency of the currently operating cooling tower fans, and the interval time from the last tower reduction may be used as criteria for determining whether the current operation information satisfies the tower reduction processing condition. When the number of the cooling towers which are in current operation is larger than the minimum starting requirement number of the cooling towers, the average frequency of the fans of the cooling towers which are in current operation is larger than the preset tower reduction frequency, the interval time from the last tower reduction is smaller than the preset tower reduction interval time, and the duration time which meets the three conditions can reach the second preset time, the current operation information meets the tower reduction processing condition.
The preset tower reduction frequency and the preset tower reduction interval time can be set according to actual conditions, and the embodiment is not limited. For example, the preset tower-decreasing frequency is 30Hz, the preset tower-decreasing interval time is 1 minute, and the second preset time may be 2 minutes.
In an alternative embodiment, it may also be determined whether the current operation information satisfies the tower-reduction processing condition by:
judging whether the minimum starting requirement quantity of the cooling tower is zero or not;
and if the minimum starting requirement number of the cooling tower is zero, indicating that the current operation information meets the tower reduction processing condition.
Specifically, whether the minimum starting requirement number of the cooling tower is zero or not can be judged, if the minimum starting requirement number of the cooling tower is zero, the current refrigerating capacity is not needed, and the current operation information meets the tower reduction processing condition.
S13, if the current operation information meets the tower adding processing condition, starting a tower adding process; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process.
If the current operation information meets the tower adding processing condition, immediately adding the working cooling tower; if the current operating information meets the tower reduction processing condition, the operating cooling tower is immediately reduced.
The management method of the cooling tower of the embodiment comprises the steps of detecting current operation information; judging whether the current operation information meets tower processing conditions; wherein the tower treatment conditions comprise tower adding treatment conditions and tower reducing treatment conditions; if the current operation information meets the tower adding processing conditions, starting a tower adding process; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process. By adopting the technical scheme of the invention, the number of the cooling towers can be increased or reduced according to the current actual operation information, the energy consumption caused by the low-frequency operation of the cooling towers is avoided, and the energy consumption is further remarkably saved.
FIG. 2 is a flow chart of a method for managing a cooling tower according to another embodiment of the present invention. As shown in fig. 2, the present application further provides another embodiment, which after the steps of the above embodiment detect the current operation information, may further include the following steps:
and S21, judging whether the current operation information meets the fan processing condition.
In an alternative embodiment, the current operation information includes: at least one of the opening degree of a control valve of the currently running cooling tower, the running state of a cooling water pump, the running state of a compressor, the return water temperature of a cooling main pipe and the outlet water temperature of the cooling tower.
The control valve of the currently operating cooling tower is typically the control butterfly valve of the cooling tower. Fig. 3 is a structural view of a cooling tower according to an embodiment of a method for managing a cooling tower of the present invention. As shown in fig. 3, a control butterfly valve 31 is disposed at both the water inlet and the water return of the cooling tower 33, and a fan 32 is disposed in the cooling tower 33. The direction of the arrow at the circulation line 34 is the circulation direction of the circulating medium in the operating state of the cooling tower. Typically, the circulating medium is water.
The fan handling conditions include fan start-up conditions and fan shut-down conditions. In an optional embodiment, whether the current operation information meets the fan turn-off condition may be determined by:
judging whether the opening of a control valve of a currently running cooling tower is smaller than a preset opening, whether the running state of a cooling water pump is closed, whether the running state of a compressor is closed, or whether the return water temperature of a cooling header pipe is smaller than the preset closing temperature of the cooling tower;
if the opening degree of a control valve of a first target cooling tower in the currently running cooling tower is smaller than the preset opening degree, indicating that all fans in the first target cooling tower meet fan closing conditions; if the operation state of the cooling water pump is closed, indicating that fans in all cooling towers which are currently operated meet fan closing conditions; if the running state of the compressor is closed, indicating that fans in all cooling towers running currently meet fan closing conditions; and if the return water temperature of the cooling main pipe is less than the preset closing temperature of the cooling tower and the duration time reaches a third preset time, indicating that the fans in all the currently running cooling towers meet the fan closing condition.
Specifically, the opening of a control valve of the currently operating cooling tower, the operating state of the cooling water pump, the operating state of the compressor, or the return water temperature of the cooling manifold may be used as a criterion for determining whether the current operating information meets the fan turn-off condition.
If one or more of the currently operating cooling towers has a control valve opening smaller than a preset opening, the one or more cooling towers may be determined as a first target cooling tower, and all fans in the first target cooling tower satisfy a fan turn-off condition. The control valve of the cooling tower can be a control butterfly valve of the cooling tower, and when the control butterfly valve of the water inlet or the water return port of the cooling tower is not opened in place, the control butterfly valve represents that the circulating medium of the cooling tower cannot flow, and then the fan can be turned off. If 1# cooling tower has 3 electric control butterfly valves and 2 fans, when the control valve aperture of 1 electric control butterfly valve is less than preset aperture, do not open when in place promptly, this cooling tower fan satisfies the fan and closes the condition, can close immediately.
If the running state of the cooling water pump is closed, the circulating medium in the current cooling tower is not in the circulating state, and the cooling function cannot be realized, so that fans in all cooling towers in current running meet the fan closing condition, and all fans are closed to realize the effect of saving energy consumption.
If the operation state of the compressor is off, the operation state indicates that no refrigeration requirement exists at present, and therefore fans in all cooling towers which are currently operated meet the fan off condition, so that all fans are turned off to achieve the effect of saving energy consumption.
If the return water temperature of the cooling main pipe is lower than the preset closing temperature of the cooling tower and lasts for a third preset time, the current refrigerating capacity is indicated to reach the requirement, and therefore fans in all cooling towers running at present meet the fan closing condition, so that all fans are closed to achieve the effect of saving energy consumption. In an alternative embodiment, the preset cooling tower shutdown temperature and the third preset time may be set according to actual operating conditions, for example, the preset cooling tower shutdown temperature is 18 ℃ and the third preset time is 10 seconds.
In an optional embodiment, whether the current operation information meets the fan starting condition may be judged by the following steps:
if the opening degree of a control valve of a third target cooling tower is larger than or equal to the preset opening degree in the currently running cooling tower, the outlet water temperature of the third target cooling tower is larger than the preset opening temperature of the cooling tower, and the running state of a cooling water pump is open, the cooling tower is in a machine reduction ready state;
and if the machine reduction preparation state lasts for the fourth preset time, all the fans in the third target cooling tower meet the fan starting condition.
Specifically, the opening of the control valve of the cooling tower currently operating, the outlet water temperature of the cooling tower and the operating state of the cooling water pump may be used as criteria for determining whether the current operating information meets the fan starting condition. If the opening degree of one or more control valves of the currently running cooling tower is larger than or equal to the preset opening degree, the one or more cooling towers can be determined as a third target cooling tower, if the conditions that the water outlet temperature of the third target cooling tower is larger than the preset opening temperature of the cooling tower and the running state of a cooling water pump is on are simultaneously met, and after the duration time meeting the three conditions reaches a fourth running time, all fans in the third target cooling tower meet the fan starting condition. In an alternative embodiment, the preset cooling tower start temperature and the fourth preset time may be set according to actual operating conditions, for example, the preset cooling tower start temperature is 20 ℃, and the fourth operating time is 10 seconds.
S22, if the current operation information meets the fan starting condition, starting the corresponding fan at a preset frequency; and if the current operation information meets the fan closing condition, closing the corresponding fan.
And if the current operation information meets the fan starting condition, starting the corresponding fan at a preset frequency. Wherein, if the control is performed by frequency conversion, the operation can be performed at a preset frequency conversion frequency, such as 20 Hz; if the control is performed by fixed frequency, the control device can operate at a preset fixed frequency.
And if the current operation information meets the fan closing condition, and the condition is that the opening degree of the control valve of the first target cooling tower in the currently operated cooling tower is smaller than the preset opening degree, immediately closing the fan in the first target cooling tower.
If the current operation information satisfies the fan shutdown condition that the operation state of the cooling water pump is shutdown, the fans in all cooling towers may be shut down after a period of time, for example, 20 seconds later.
If the current operation information satisfies the fan shutdown condition that the operation state of the compressor is shutdown, the fans in all cooling towers may be shut down after a period of time, for example, after 60 seconds.
If the current operation information meets the fan closing condition, the condition that the return water temperature of the cooling main pipe is lower than the preset cooling tower closing temperature and the duration time reaches a third preset time is met, the fans in all the cooling towers can be immediately closed.
By adopting the technical scheme of the invention, the running state of the fan in the cooling tower can be further controlled according to the current running information, so that the energy can be further saved.
The present application further provides another embodiment, where after the step of the above embodiment starts the corresponding fan at the preset frequency, the embodiment may further include the following steps:
re-determining the operating frequency of the fan every other preset time period so as to enable the fan to operate according to the re-determined operating frequency; wherein the re-determined operating frequency is the sum of the operating frequency of the previous time period and the frequency gain value.
Specifically, the operation frequency of the fan can be recalculated at preset time intervals according to the actual operation condition, so that the fan can operate according to the determined operation frequency, and the energy consumption is further saved. Wherein the re-determined operating frequency is the sum of the operating frequency of the previous time period and the frequency gain value.
In an alternative embodiment, the preset time period may be 5 seconds.
In an alternative embodiment, the real type is used to determine the operating frequency. Namely:
recalculating the running frequency (real type) of the fan as the running frequency (real type) + frequency gain value (real type) of the last time period
Generally, the frequency gain value ranges between-the PID gain upper limit for the cooling fan frequency and + the PID gain upper limit for the cooling fan frequency. -the cooling blower frequency PID upper gain limit value may be-0.5 Hz and the + cooling blower frequency PID upper gain limit value may be 0.5 Hz.
The present application also provides another embodiment that may determine a frequency gain value by:
judging whether the difference value between the medium temperature in the pipeline and the preset medium target temperature is smaller than a preset deviation temperature or not, and whether the difference value between the medium temperature and the preset medium target temperature is larger than a frequency PID dead zone set value of the fan or not;
if the difference between the medium temperature and the preset medium target temperature is smaller than the preset deviation temperature, and the difference between the medium temperature and the preset medium target temperature is larger than the frequency PID dead zone set value of the fan, the frequency gain value is as follows:
wherein f is increased to a frequency gain value, T1Is the medium temperature, T2Setting T as a preset deviation temperature for a preset medium target temperature, modifying f as a frequency gain value correction coefficient, wherein the upper limit of f is a preset frequency PID gain upper limit value, P is the P value of a frequency PID, and I is the I value of the frequency PID;
and if the difference value between the medium temperature and the preset medium target temperature is greater than or equal to the preset deviation temperature, and/or the difference value between the medium temperature and the preset medium target temperature is less than or equal to the frequency PID dead zone set value of the fan, the frequency gain value is the preset frequency PID gain upper limit value.
Specifically, during the operation of the fan, the temperature of the medium in the pipeline can be determined, so as to calculate the difference between the temperature of the medium and the preset target temperature of the medium. The difference value is a positive number, and an absolute value of a difference between the medium temperature minus the preset medium target temperature may be taken as a difference value between the medium temperature and the preset medium target temperature. If the difference is less than the preset offset temperature and the difference is greater than the fan frequency PID dead band set point, then the frequency gain value can be determined according to the following equation:
wherein f is increased to a frequency gain value, T1Is the medium temperature, T2And for a preset medium target temperature, T is set as a preset deviation temperature, f is modified as a frequency gain value correction coefficient, the upper limit of f is a preset frequency PID gain upper limit value, P is the P value of the frequency PID, and I is the I value of the frequency PID.
In an alternative embodiment, the preset offset temperature is 3 ℃, the frequency PID dead band setpoint is 0.2 ℃, the P value of the frequency PID is 0.1, and the I value of the frequency PID is 0.1.
And if the difference is greater than or equal to the preset deviation temperature and/or the difference is less than or equal to the frequency PID dead zone set value of the fan, the frequency gain value is the preset frequency PID gain upper limit value. In an alternative embodiment, the upper limit of the gain of the preset frequency PID is 0.5 Hz.
It should be noted that, if only the difference between the medium temperature and the preset target medium temperature is greater than or equal to the preset deviation temperature, the frequency gain value is the preset upper limit of the frequency PID gain. And if only the difference value between the medium temperature and the preset medium target temperature is less than or equal to the frequency PID dead zone set value of the fan, the frequency gain value is the preset frequency PID gain upper limit value. If the difference is greater than or equal to the preset deviation temperature and the difference is less than or equal to the frequency PID dead zone set value of the fan, the frequency gain value is the preset frequency PID gain upper limit value.
In an alternative embodiment, the pipeline is the water outlet pipeline of each cooling tower or the water return manifold of all the cooling towers. If the pipeline is the water outlet pipeline of each cooling tower, the medium temperature is the water outlet temperature of each cooling tower, and each cooling tower can be independently controlled, namely, the fan frequency of the cooling tower is adjusted according to the frequency gain value determined by the water outlet temperature of any cooling tower.
If the pipeline is the return water main pipe of all cooling towers, the medium temperature is the return water temperature of the return water main pipe, and all cooling towers can be synchronously controlled, namely, the fan frequency of all cooling towers is adjusted according to the frequency gain value determined by the return water temperature.
Based on a general inventive concept, the present invention also provides a management apparatus of a cooling tower, which is used for implementing the above method embodiments. Fig. 4 is a schematic structural view provided by an embodiment of the management device of the cooling tower of the present invention. As shown in fig. 4, the apparatus of the present embodiment includes:
a detection module 41, configured to detect current operation information;
a judging module 42, configured to judge whether the current operation information meets a tower processing condition; wherein the tower treatment conditions comprise tower adding treatment conditions and tower reducing treatment conditions;
the processing module 43 is configured to start a tower-adding process if the current operation information meets the tower-adding processing condition; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process.
In an alternative embodiment, the current operation information includes at least one of the number of currently operating cooling towers, the average frequency of the currently operating cooling tower fans, the interval time from the last tower addition and the interval time from the last tower subtraction.
In an optional embodiment, the determining module 42 is specifically configured to determine whether the number of currently operating cooling towers is less than a preset maximum number of cooling towers that are allowed to operate, whether an average frequency of fans of the currently operating cooling towers is greater than a preset tower adding frequency, whether an interval time from last tower adding is greater than a preset tower adding interval time, and whether the number of currently operating cooling towers is less than the number of available cooling towers; if the number of the currently operating cooling towers is smaller than the preset maximum number of the cooling towers allowed to operate, the average frequency of the fans of the currently operating cooling towers is larger than the preset tower adding frequency, the interval time from the last tower adding is larger than the preset tower adding interval time, and the number of the currently operating cooling towers is smaller than the number of the available cooling towers, the current cooling towers are in a tower adding preparation state; and if the tower adding preparation state lasts for a first preset time, the current operation information meets the tower adding processing condition.
In an optional embodiment, the determining module 42 is specifically configured to determine whether the number of currently operating cooling towers is less than the minimum starting requirement number of cooling towers, and whether the number of currently operating cooling towers is less than the number of available cooling towers; and if the number of the currently operated cooling towers is less than the minimum starting requirement number of the cooling towers, and the number of the currently operated cooling towers is less than the number of the available cooling towers, indicating that the current operation information meets the tower adding processing condition.
In an optional embodiment, the determining module 42 is specifically configured to determine whether the number of currently operating cooling towers is greater than the minimum starting requirement number of the cooling towers, whether the average frequency of the fans of the currently operating cooling towers is less than a preset tower reduction frequency, and whether the interval time from the last tower reduction is greater than a preset tower reduction interval time; if the number of the cooling towers which are operated currently is larger than the minimum starting requirement number of the cooling towers, the average frequency of the fans of the cooling towers which are operated currently is larger than the preset tower reduction frequency, and the interval time from the last tower reduction is smaller than the preset tower reduction interval time, the fans are in a tower reduction preparation state, and if the tower reduction preparation state lasts for the second preset time, the current operation information meets the tower reduction processing condition.
In an optional embodiment, the determining module 42 is specifically configured to determine whether the minimum startup demand number of the cooling tower is zero; and if the minimum starting requirement number of the cooling tower is zero, indicating that the current operation information meets the tower reduction processing condition.
In an alternative embodiment, the average frequency of the currently operating cooling tower fans is calculated as:
wherein the content of the first and second substances,
is the average frequency, alpha, of the currently operating cooling tower fannIs the opening of the control valve, f, of each cooling tower currently in operationnIs the output frequency of each cooling tower currently in operation.
In an optional embodiment, the determining module 42 is further configured to determine whether the current operation information meets a fan processing condition; the fan processing conditions comprise fan starting conditions and fan closing conditions;
the processing module 43 is configured to start the corresponding fan at a preset frequency if the current operation information meets the fan starting condition; and if the current operation information meets the fan closing condition, closing the corresponding fan.
In an alternative embodiment, the current operation information includes: at least one of the opening degree of a control valve of the currently running cooling tower, the running state of a cooling water pump, the running state of a compressor, the return water temperature of a cooling main pipe and the outlet water temperature of the cooling tower.
In an optional embodiment, the determining module 42 is specifically configured to determine whether an opening of a control valve of a currently operating cooling tower is smaller than a preset opening, whether an operating state of a cooling water pump is off, whether an operating state of a compressor is off, or whether a return water temperature of a cooling header pipe is smaller than a preset cooling tower off temperature; if the opening degree of a control valve of a first target cooling tower in the currently running cooling tower is smaller than the preset opening degree, indicating that all fans in the first target cooling tower meet fan closing conditions; if the operation state of the cooling water pump is closed, indicating that fans in all cooling towers which are currently operated meet fan closing conditions; if the running state of the compressor is closed, indicating that fans in all cooling towers running currently meet fan closing conditions; and if the return water temperature of the cooling main pipe is less than the preset closing temperature of the cooling tower and the duration time reaches a third preset time, indicating that the fans in all the currently running cooling towers meet the fan closing condition.
In an optional embodiment, the determining module 42 is specifically configured to be in a machine reduction preparation state if an opening degree of a control valve of a third target cooling tower in a currently operating cooling tower is greater than or equal to a preset opening degree, an outlet water temperature of the third target cooling tower is greater than a preset opening temperature of the cooling tower, and an operating state of a cooling water pump is on; and if the machine reduction preparation state lasts for the fourth preset time, all the fans in the third target cooling tower meet the fan starting condition.
In an optional embodiment, the determining module 42 is specifically configured to, after the corresponding fan is turned on at a preset frequency, re-determine the operating frequency of the fan every other preset time period, so that the fan operates according to the re-determined operating frequency; wherein the re-determined operating frequency is the sum of the operating frequency of the previous time period and the frequency gain value.
In an optional embodiment, the system further comprises a determining module;
the judging module 42 is further configured to judge whether a difference between the medium temperature in the pipeline and a preset medium target temperature is smaller than a preset deviation temperature, and whether the difference between the medium temperature and the preset medium target temperature is greater than a frequency PID dead zone set value of the fan;
if the difference between the medium temperature and the preset medium target temperature is smaller than the preset deviation temperature, and the difference between the medium temperature and the preset medium target temperature is larger than the frequency PID dead zone set value of the fan, the frequency gain value is as follows:
wherein f is increased to a frequency gain value, T1Is the medium temperature, T2Setting T as a preset deviation temperature for a preset medium target temperature, modifying f as a frequency gain value correction coefficient, wherein the upper limit of f is a preset frequency PID gain upper limit value, P is the P value of a frequency PID, and I is the I value of the frequency PID;
and if the difference value between the medium temperature and the preset medium target temperature is greater than or equal to the preset deviation temperature, and/or the difference value between the medium temperature and the preset medium target temperature is less than or equal to the frequency PID dead zone set value of the fan, the frequency gain value is the preset frequency PID gain upper limit value.
In an alternative embodiment, a line is the outlet line for each cooling tower; correspondingly, the frequency gain value is the frequency gain value of the fan in the cooling tower corresponding to the pipeline; or the pipelines are the return water main pipes of all the cooling towers; correspondingly, the frequency gain value is the frequency gain value of the fans in all the cooling towers.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Based on one general inventive concept, the present invention also provides a management apparatus of a cooling tower, which is used for implementing the above method embodiments. Fig. 5 is a schematic structural view provided by an embodiment of the management apparatus of a cooling tower of the present invention. As shown in fig. 5, the management apparatus of a cooling tower of the present embodiment includes a processor 51 and a memory 52, and the processor 51 is connected to the memory 52. Wherein, the processor 51 is used for calling and executing the program stored in the memory 52; the memory 52 is used to store a program for executing at least the management method of the cooling tower in the above embodiment.
Based on one general inventive concept, the present invention also provides a cooling tower including the management apparatus of the cooling tower of the above embodiment.
Based on one general inventive concept, the present invention also provides a temperature control system including the cooling tower of the above embodiment.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (18)
1. A method of managing a cooling tower, comprising:
detecting current operation information;
judging whether the current operation information meets tower processing conditions; wherein the column processing conditions comprise plus column processing conditions and minus column processing conditions;
if the current operation information meets the tower adding processing condition, starting a tower adding process; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process.
2. The method for managing a cooling tower of claim 1, wherein the current operation information includes:
at least one of the number of currently operating cooling towers, the average frequency of the currently operating cooling tower fans, the interval time from the last tower addition and the interval time from the last tower subtraction.
3. The method of managing a cooling tower of claim 2, wherein said determining whether the current operational information satisfies tower processing conditions comprises:
judging whether the number of the currently-operated cooling towers is less than the preset maximum number of the cooling towers allowed to operate, whether the average frequency of fans of the currently-operated cooling towers is greater than the preset tower adding frequency, whether the interval time from the last tower adding is greater than the preset tower adding interval time, and whether the number of the currently-operated cooling towers is less than the number of the available cooling towers;
if the number of the currently-operated cooling towers is smaller than the preset maximum number of the cooling towers allowed to operate, the average frequency of the fans of the currently-operated cooling towers is larger than the preset tower adding frequency, the interval time from the last tower adding is larger than the preset tower adding interval time, and the number of the currently-operated cooling towers is smaller than the number of the available cooling towers, the currently-operated cooling towers are in a tower adding preparation state;
and if the tower adding preparation state lasts for a first preset time, the current operation information meets the tower adding processing condition.
4. The method of managing a cooling tower of claim 2, wherein said determining whether the current operational information satisfies tower processing conditions comprises:
judging whether the number of the currently operated cooling towers is smaller than the minimum starting requirement number of the cooling towers or not, and whether the number of the currently operated cooling towers is smaller than the number of the available cooling towers or not;
and if the number of the currently operated cooling towers is smaller than the minimum starting requirement number of the cooling towers, and the number of the currently operated cooling towers is smaller than the number of the available cooling towers, indicating that the current operation information meets the tower adding processing condition.
5. The method of managing a cooling tower of claim 2, wherein said determining whether the current operational information satisfies tower processing conditions comprises:
judging whether the number of the currently operating cooling towers is greater than the minimum starting requirement number of the cooling towers, whether the average frequency of the currently operating cooling tower fans is less than a preset tower reduction frequency, and whether the interval time from the last tower reduction is greater than a preset tower reduction interval time;
if the number of the currently operating cooling towers is larger than the minimum starting requirement number of the cooling towers, the average frequency of the currently operating cooling tower fans is larger than a preset tower reduction frequency, and the interval time from the last tower reduction is smaller than a preset tower reduction interval time, the currently operating cooling towers are in a tower reduction preparation state;
and if the tower reduction preparation state continues for a second preset time, the current operation information meets the tower reduction processing condition.
6. The method of managing a cooling tower of claim 2, wherein said determining whether the current operational information satisfies tower processing conditions comprises:
judging whether the minimum starting requirement quantity of the cooling tower is zero or not;
and if the minimum starting requirement number of the cooling tower is zero, the current operation information meets the tower reduction processing condition.
7. The method for managing a cooling tower of claim 2, wherein the average frequency of the currently operating cooling tower fan is calculated by the formula:
wherein the content of the first and second substances,
for the current fortuneMean frequency of cooling tower fans of rows, alphanIs the opening of the control valve, f, of each cooling tower currently in operationnIs the output frequency of each cooling tower currently in operation.
8. The method of managing a cooling tower of claim 1, further comprising:
judging whether the current operation information meets fan processing conditions or not; the fan processing conditions comprise fan starting conditions and fan closing conditions;
if the current operation information meets the fan starting condition, starting a corresponding fan at a preset frequency; and if the current operation information meets the fan closing condition, closing the corresponding fan.
9. The method for managing a cooling tower of claim 8, wherein the current operation information includes:
at least one of the opening degree of a control valve of the currently running cooling tower, the running state of a cooling water pump, the running state of a compressor, the return water temperature of a cooling main pipe and the outlet water temperature of the cooling tower.
10. The method for managing a cooling tower of claim 9, wherein the determining whether the current operation information satisfies a fan handling condition comprises:
judging whether the opening of a control valve of the currently running cooling tower is smaller than a preset opening, whether the running state of the cooling water pump is closed, whether the running state of the compressor is closed, or whether the return water temperature of the cooling header pipe is smaller than the preset closing temperature of the cooling tower;
if the opening degree of a control valve of a first target cooling tower in the currently running cooling tower is smaller than a preset opening degree, indicating that all fans in the first target cooling tower meet the fan closing condition; if the operation state of the cooling water pump is closed, indicating that fans in all cooling towers which are currently operated meet the fan closing condition; if the running state of the compressor is off, indicating that fans in all cooling towers running currently meet the fan off condition; and if the return water temperature of the cooling main pipe is less than the preset closing temperature of the cooling tower and the duration time reaches a third preset time, indicating that the fans in all the currently running cooling towers meet the fan closing condition.
11. The method for managing a cooling tower of claim 10, wherein the determining whether the current operation information satisfies a fan handling condition further comprises:
if the opening degree of a control valve of a third target cooling tower is larger than or equal to a preset opening degree in the currently running cooling tower, the outlet water temperature of the third target cooling tower is larger than the preset opening temperature of the cooling tower, and the running state of the cooling water pump is started, the cooling water pump is in a machine reduction preparation state;
and if the engine reduction preparation state lasts for a fourth preset time, all the fans in the third target cooling tower meet the fan starting condition.
12. The method for managing a cooling tower of claim 8, wherein after the corresponding fan is turned on at a preset frequency, the method further comprises:
re-determining the operating frequency of the fan every other preset time period so as to enable the fan to operate according to the re-determined operating frequency; wherein the re-determined operating frequency is the sum of the operating frequency of the previous time period and the frequency gain value.
13. The method of managing a cooling tower of claim 12, further comprising:
judging whether the difference value between the medium temperature in the pipeline and a preset medium target temperature is smaller than a preset deviation temperature or not, and whether the difference value between the medium temperature and the preset medium target temperature is larger than a frequency PID dead zone set value of the fan or not;
if the difference between the medium temperature and the preset medium target temperature is smaller than the preset deviation temperature, and the difference between the medium temperature and the preset medium target temperature is larger than the frequency PID dead zone set value of the fan, the frequency gain value is as follows:
wherein f isIncreaseFor said frequency gain value, T1Is the temperature of the medium, T2Is the preset target temperature of the medium, TSetting upTo a predetermined deviation temperature fRepair theFor correcting the frequency gain value, fUpper limit ofThe gain is a preset frequency PID gain upper limit value, P is the P value of the frequency PID, and I is the I value of the frequency PID;
and if the difference value between the medium temperature and the preset medium target temperature is greater than or equal to the preset deviation temperature, and/or the difference value between the medium temperature and the preset medium target temperature is less than or equal to the frequency PID dead zone set value of the fan, the frequency gain value is a preset frequency PID gain upper limit value.
14. The method of managing a cooling tower of claim 13, wherein said line is a water outlet line for each cooling tower; correspondingly, the frequency gain value is the frequency gain value of a fan in the cooling tower corresponding to the pipeline; or
The pipelines are return water main pipes of all cooling towers; correspondingly, the frequency gain value is the frequency gain value of the fans in all the cooling towers.
15. A management device for a cooling tower, comprising:
the detection module is used for detecting the current operation information;
the judging module is used for judging whether the current operation information meets the tower processing condition; wherein the column processing conditions comprise plus column processing conditions and minus column processing conditions;
the processing module is used for starting a tower adding process if the current operation information meets the tower adding processing condition; and if the current operation information meets the tower reduction processing conditions, starting a tower reduction process.
16. A management device for a cooling tower, comprising a processor and a memory, wherein the processor is connected to the memory:
the processor is used for calling and executing the program stored in the memory;
the memory for storing the program for executing at least the management method of the cooling tower according to any one of claims 1 to 14.
17. A cooling tower characterized by comprising the management apparatus of a cooling tower as claimed in claim 16.
18. A temperature control system comprising the cooling tower of claim 17.
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