CN113237375B - Cooling tower startup and shutdown control method and system - Google Patents
Cooling tower startup and shutdown control method and system Download PDFInfo
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- CN113237375B CN113237375B CN202110540215.2A CN202110540215A CN113237375B CN 113237375 B CN113237375 B CN 113237375B CN 202110540215 A CN202110540215 A CN 202110540215A CN 113237375 B CN113237375 B CN 113237375B
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2282—Tablespace storage structures; Management thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/36—Creation of semantic tools, e.g. ontology or thesauri
- G06F16/367—Ontology
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to a method and a system for controlling the startup and shutdown of a cooling tower.A cooling tower to be started up is determined according to the temperature of cooling water discharged from the tower, the preset starting temperature of the cooling tower and a knowledge table of the cooling tower in the current state, and the cooling tower is started up; and determining the cooling tower to be shut down and shutting down the cooling tower according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state. The invention improves the refrigeration effect of the air conditioner by establishing the cooling tower knowledge table and controlling the on-off state of the cooling tower.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a system for controlling the on and off of a cooling tower.
Background
In central air conditioning systems, cooling towers are an important component. The cooling circulating water exchanges heat with air in the tower, transfers the heat of the water to the air and disperses the heat into the atmosphere, and the purpose of cooling the cooling circulating water is achieved. The cooling effect and the cooling efficiency of the air conditioning system are directly influenced by the heat dissipation capacity of the cooling tower. As time goes on, the heat dissipation performance of the cooling tower changes in different degrees, so the automatic on-off control method of the cooling tower needs to change correspondingly to ensure the heat dissipation effect of the cooling circulating water to the maximum extent. Generally, most of the cooling towers are connected in parallel (i.e. circulating cooling water flows to the top of the tower through a header pipe, then enters the interior of each cooling tower through parallel branch pipes, and then the circulating water is collected to the header pipe from each branch pipe), and the corresponding on-off control methods in the prior art are as follows:
1. and when the temperature of the cooling circulating water out of the tower is higher than a certain set value, searching a cooling tower with the shortest accumulated running time from the stopped cooling towers for starting.
2. And when the temperature of the cooling circulating water out of the tower is lower than a certain set value, searching a cooling tower with the longest accumulated operation time in the operating cooling towers for closing.
The method has the following problems in the practical application process:
1. when the cooling tower needs to be started, if the selected cooling tower has poor heat dissipation capacity, the temperature reduction amplitude of circulating water flowing through the cooling tower is not large, the temperature reduction amplitude is not ideal, and the temperature of the main pipe is increased due to the fact that the part of circulating water with the unsatisfactory temperature reduction amplitude is mixed with circulating water of other towers, so that the heat dissipation of the circulating water is not ideal, and the refrigeration effect of the air conditioner is further influenced;
2. when the cooling tower needs to be closed, if the heat dissipation capacity of the operating cooling tower is good and poor, but the cooling tower with good heat dissipation capacity is selected for closing, the heat dissipation effect of circulating water is greatly reduced after the cooling tower is closed, so that the refrigeration effect of the air conditioner is influenced.
Disclosure of Invention
The invention aims to provide a cooling tower on-off control method and a cooling tower on-off control system, which improve the refrigeration effect of an air conditioner by establishing a cooling tower knowledge table and controlling the on-off state of a cooling tower according to the cooling tower knowledge table.
In order to achieve the purpose, the invention provides the following scheme:
a cooling tower startup and shutdown control method comprises the following steps:
collecting the operation parameters and the operation time of each cooling tower in the cooling system in the current state; the operation parameters comprise the tower inlet temperature and the tower outlet temperature of the cooling tower;
judging whether the running time is greater than or equal to a preset running record storage period or not to obtain a first judgment result;
if the first judgment result is yes, updating the cooling tower knowledge table according to the operation parameters, the preset knowledge record days and the cooling tower operation record table, taking the updated cooling tower knowledge table as the cooling tower knowledge table in the current state, and executing a startup and shutdown control process;
if the first judgment result is negative, taking the cooling tower knowledge table in the previous state as the cooling tower knowledge table in the current state, and executing the startup and shutdown control process;
the startup and shutdown control process comprises the following steps:
determining a cooling tower to be started and starting the cooling tower according to the cooling water outlet temperature, the preset starting temperature of the cooling tower and a cooling tower knowledge table in the current state;
and determining the cooling tower to be shut down and shutting down the cooling tower according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state.
Preferably, the updating the cooling tower knowledge table according to the operation parameters, the preset knowledge record days and the cooling tower operation record table includes:
and storing the operation parameters into the cooling tower operation record table to obtain an updated cooling tower operation record table, counting the heat dissipation performance of each cooling tower according to the preset knowledge record counting days and the updated cooling tower operation record table, and storing the heat dissipation performance into the cooling tower knowledge table to obtain the updated cooling tower knowledge table.
Preferably, the determining and starting the cooling tower to be started according to the cooling water outlet temperature, the preset starting temperature of the cooling tower and the knowledge table of the cooling tower in the current state comprises:
judging whether the cooling water outlet temperature is greater than a preset cooling tower starting temperature or not to obtain a second judgment result;
and if the second judgment result is yes, determining the cooling tower to be started according to the cooling tower knowledge table in the current state and starting the cooling tower.
Preferably, the determining and shutting down of the cooling tower to be shut down according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state comprises:
if the second judgment result is negative, judging whether the cooling water outlet temperature is greater than or equal to a preset cooling tower shutdown temperature or not to obtain a third judgment result;
if the third judgment result is yes, returning to the collection of the operation parameters and the operation time of each cooling tower in the cooling system in the current state after updating the current state;
and if the third judgment result is negative, determining the cooling tower to be shut down according to the cooling tower knowledge table in the current state and shutting down.
Preferably, before determining the cooling tower to be started and starting the cooling tower according to the knowledge table of the cooling tower in the current state, the method further comprises the following steps:
recording and judging process time; the judgment process time is greater than or equal to the preset continuous judgment time.
Preferably, the determining, according to the cooling tower knowledge table in the current state, a cooling tower to be started and starting the cooling tower includes:
and inquiring the cooling tower knowledge table, and starting the cooling tower with the best heat dissipation performance in the stopped cooling towers.
Preferably, the determining, according to the cooling tower knowledge table in the current state, the cooling tower to be shut down and shutting down the cooling tower include:
and inquiring the cooling tower knowledge table, and closing the cooling tower with the worst heat dissipation performance in the opened cooling towers.
A cooling tower on-off control system comprising:
the acquisition module is used for acquiring the operation parameters and the operation time of each cooling tower in the cooling system in the current state; the operation parameters comprise the tower inlet temperature and the tower outlet temperature of the cooling tower;
the first judgment module is used for judging whether the running time is greater than or equal to a preset running record storage period or not to obtain a first judgment result;
the first action module is used for updating the cooling tower knowledge table according to the operation parameters, the preset knowledge record days and the cooling tower operation record table if the first judgment result is yes, and executing a startup and shutdown control process by taking the updated cooling tower knowledge table as the cooling tower knowledge table in the current state;
the second action module is used for taking the cooling tower knowledge table in the previous state as the cooling tower knowledge table in the current state and executing the startup and shutdown control process if the first judgment result is negative;
the startup and shutdown control process comprises the following steps:
the starting module is used for determining a cooling tower to be started and starting the cooling tower according to the cooling water outlet temperature, the preset cooling tower starting temperature and the cooling tower knowledge table in the current state;
and the shutdown module is used for determining the cooling tower to be shut down according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state and shutting down the cooling tower.
Preferably, the first action module comprises:
and the first action unit is used for storing the operation parameters into the cooling tower operation record table to obtain an updated cooling tower operation record table, counting the heat dissipation performance of each cooling tower according to preset knowledge record counting days and the updated cooling tower operation record table, and storing the heat dissipation performance into the cooling tower knowledge table to obtain the updated cooling tower knowledge table.
Preferably, the boot module includes:
the judging unit is used for judging whether the cooling water outlet temperature is greater than the preset starting temperature of the cooling tower or not to obtain a second judging result;
and the starting unit is used for determining the cooling tower to be started and starting the cooling tower according to the knowledge table of the cooling tower in the current state if the second judgment result is yes.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, the cooling tower knowledge table is established, the on-off state of the cooling tower is controlled according to the cooling tower knowledge table, and the established cooling tower knowledge record table can not only inquire the heat dissipation performance condition of the cooling tower, but also select the cooling tower with the best heat dissipation performance when the cooling tower needs to be opened; when the cooling tower needs to be closed, the cooling tower with the worst heat dissipation performance can be selected, and therefore the refrigeration effect of the air conditioner is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of a method of controlling a cooling tower on/off device according to the present invention;
fig. 2 is a block diagram of a cooling tower on-off control system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a cooling tower on-off control method and a cooling tower on-off control system, which improve the refrigeration effect of an air conditioner by establishing a cooling tower knowledge table and controlling the on-off state of a cooling tower according to the cooling tower knowledge table.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a flowchart of a method for controlling a cooling tower on/off device according to the present invention, and as shown in fig. 1, the method for controlling a cooling tower on/off device according to the present invention includes:
step 100: collecting the operation parameters and the operation time of each cooling tower in the cooling system in the current state; the operating parameters include a cooling tower inlet temperature and a cooling tower outlet temperature.
Step 200: and judging whether the running time is greater than or equal to a preset running record storage period or not to obtain a first judgment result.
Step 300: if the first judgment result is yes, updating the cooling tower knowledge table according to the operation parameters, the preset knowledge record days and the cooling tower operation record table, taking the updated cooling tower knowledge table as the cooling tower knowledge table in the current state, and executing a startup and shutdown control process.
Step 301: and if the first judgment result is negative, taking the cooling tower knowledge table in the previous state as the cooling tower knowledge table in the current state, and executing the startup and shutdown control process.
The startup and shutdown control process comprises the following steps:
determining a cooling tower to be started and starting the cooling tower according to the cooling water outlet temperature, the preset starting temperature of the cooling tower and a cooling tower knowledge table in the current state; and determining the cooling tower to be shut down and shutting down the cooling tower according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state.
Specifically, the parameters preset manually in the invention include: presetting the starting temperature T of the cooling tower Opening device Presetting the shutdown temperature T of the cooling tower Closing (A) Presetting a running record storage period t Period of time Presetting statistics days D of knowledge record Knowledge of Presetting a duration judgment time t Preset of 。
Preferably, the updating the cooling tower knowledge table according to the operation parameters, the preset knowledge record days and the cooling tower operation record table includes:
and storing the operation parameters into the cooling tower operation record table to obtain an updated cooling tower operation record table, counting the heat dissipation performance of each cooling tower according to the preset knowledge record counting days and the updated cooling tower operation record table, and storing the heat dissipation performance into the cooling tower knowledge table to obtain the updated cooling tower knowledge table.
Preferably, the determining and starting the cooling tower to be started according to the cooling water outlet temperature, the preset starting temperature of the cooling tower and the knowledge table of the cooling tower in the current state comprises:
judging whether the cooling water outlet temperature is greater than a preset cooling tower starting temperature or not to obtain a second judgment result;
and if the second judgment result is yes, determining the cooling tower to be started according to the cooling tower knowledge table in the current state and starting the cooling tower.
Preferably, determining the cooling tower to be shut down and shutting down the cooling tower according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state, including:
and if the second judgment result is negative, judging whether the cooling water outlet temperature is greater than or equal to a preset cooling tower shutdown temperature or not, and obtaining a third judgment result.
And if the third judgment result is yes, returning to the collection of the operation parameters and the operation time of each cooling tower in the cooling system in the current state after updating the current state.
And if the third judgment result is negative, determining the cooling tower to be shut down according to the cooling tower knowledge table in the current state and shutting down.
Preferably, before determining the cooling tower to be started and starting the cooling tower according to the knowledge table of the cooling tower in the current state, the method further comprises the following steps:
recording and judging process time; the judgment process time is greater than or equal to the preset continuous judgment time.
Preferably, the determining, according to the cooling tower knowledge table in the current state, a cooling tower to be started and starting the cooling tower includes:
and inquiring the cooling tower knowledge table, and starting the cooling tower with the best heat dissipation performance in the stopped cooling towers.
Preferably, the determining, according to the cooling tower knowledge table in the current state, a cooling tower to be shut down and shutting down the cooling tower includes:
and querying the cooling tower knowledge table, and closing the cooling tower with the worst heat dissipation performance in the opened cooling towers.
The general flow of the application of the present embodiment is as follows:
step 1: the parameters preset manually comprise: cooling tower starting temperature T Opening device Shutdown temperature T of cooling tower Closing device Running a record storage period t Period of time Statistics of days D for knowledge records Knowledge of Continuously judging the time t Preset of 。
Step 2: sampling parameters (wet bulb temperature, cooling water flow, cooling water inlet temperature, cooling water outlet temperature, operation frequency, instantaneous power and the like) of each operating cooling tower, starting to operate, record, store and time t, and when the time t is more than or equal to t Period of time Step 3 is entered, otherwise step 5 is entered.
And step 3: and (4) storing the parameters of each cooling tower in operation into a cooling tower operation record table, and then entering the step 4.
And 4, step 4: according to D Knowledge of And (5) inquiring the operation record table of the cooling tower, counting the heat dispersion performance of each cooling tower for a period of time, storing the heat dispersion performance into a cooling tower knowledge table, and entering the step 5.
And 5: judging the temperature T of the cooling tower, if T>T Switch (C) Starting to time t, when the time t is more than or equal to t The method comprises the steps of presetting the parameters of the system, step 6 is entered; if T is greater than or equal to T Closing device And T is less than or equal to T Opening device Returning to the step 2; if T is less than or equal to T Closing (A) Then step 7 is entered.
Step 6: and (3) inquiring a cooling tower knowledge table, finding out the cooling tower with the best heat dissipation performance (the preferential selection is that the cooling water outlet temperature is the lowest, namely the circulating water cooling amplitude is the largest, and the selection is that the power is lower) in the cooling tower stopped under the current conditions (the wet bulb temperature, the cooling water flow and the cooling water inlet temperature), then giving a corresponding starting instruction, and finally returning to the step 2.
And 7: and (3) inquiring a cooling tower knowledge table, finding out the cooling tower with the worst heat dissipation performance (the preferential selection is that the outlet temperature of the cooling water is the highest, namely the cooling amplitude of circulating water is the minimum, and the selection is that the power is higher) in the cooling tower operating under the current conditions (the wet bulb temperature, the flow rate of the cooling water and the inlet temperature of the cooling water), then giving a corresponding shutdown instruction, and finally returning to the step 2.
Fig. 2 is a module connection diagram of a cooling tower on-off control system according to the present invention, and as shown in fig. 2, the cooling tower on-off control system according to the present invention includes:
the acquisition module is used for acquiring the operation parameters and the operation time of each cooling tower in the cooling system in the current state; the operating parameters include a cooling tower inlet temperature and a cooling tower outlet temperature.
And the first judgment module is used for judging whether the running time is greater than or equal to a preset running record storage period or not to obtain a first judgment result.
And the first action module is used for updating the cooling tower knowledge table according to the operation parameters, the preset knowledge recording days and the cooling tower operation recording table if the first judgment result is yes, and executing the on-off control module by taking the updated cooling tower knowledge table as the cooling tower knowledge table in the current state.
And the second action module is used for taking the cooling tower knowledge table in the last state as the cooling tower knowledge table in the current state and executing the on-off control module if the first judgment result is negative.
The on-off control module comprises:
and the starting module is used for determining the cooling tower to be started and starting the cooling tower according to the cooling water outlet temperature, the preset starting temperature of the cooling tower and the knowledge table of the cooling tower in the current state.
And the shutdown module is used for determining the cooling tower to be shut down according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state and shutting down the cooling tower.
Preferably, the first action module comprises:
and the first action unit is used for storing the operation parameters into the cooling tower operation record table to obtain an updated cooling tower operation record table, counting the heat dissipation performance of each cooling tower according to preset knowledge record counting days and the updated cooling tower operation record table, and storing the heat dissipation performance into the cooling tower knowledge table to obtain the updated cooling tower knowledge table.
Preferably, the boot module includes:
and the judging unit is used for judging whether the cooling water outlet temperature is greater than the preset starting temperature of the cooling tower or not to obtain a second judging result.
And the starting unit is used for determining the cooling tower to be started and starting the cooling tower according to the cooling tower knowledge table in the current state if the second judgment result is yes.
The invention has the following beneficial effects:
1. when the cooling tower needs to be opened, the situation that the cooling tower is possibly opened more can be avoided.
2. When the cooling tower needs to be started, the cooling tower with the best heat dissipation performance can be selected, and energy waste and the influence on the air conditioning effect are avoided.
3. When the cooling tower needs to be closed, the situation that one tower is closed and then the other tower is opened can be avoided.
4. When the cooling tower needs to be closed, the cooling tower with the worst heat dissipation performance can be selected, and energy waste and influence on the air conditioning effect are avoided.
5. Through the established cooling tower knowledge record table, the heat dissipation performance condition of the cooling tower can be inquired, and a basis can be provided for maintenance of the cooling tower.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the foregoing, the description is not to be taken in a limiting sense.
Claims (10)
1. A cooling tower startup and shutdown control method is characterized by comprising the following steps:
collecting the operation parameters and the operation time of each cooling tower in the cooling system in the current state; the operation parameters comprise the tower inlet temperature and the tower outlet temperature of the cooling tower;
judging whether the running time is greater than or equal to a preset running record storage period or not to obtain a first judgment result;
if the first judgment result is yes, updating a cooling tower knowledge table according to the operation parameters, the preset knowledge recording days and the cooling tower operation recording table, taking the updated cooling tower knowledge table as the cooling tower knowledge table in the current state, and executing a startup and shutdown control process;
if the first judgment result is negative, taking the cooling tower knowledge table in the previous state as the cooling tower knowledge table in the current state, and executing the startup and shutdown control process;
the startup and shutdown control process comprises the following steps:
determining a cooling tower to be started and starting the cooling tower according to the cooling water outlet temperature, the preset starting temperature of the cooling tower and a cooling tower knowledge table in the current state;
and determining the cooling tower to be shut down and shutting down the cooling tower according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state.
2. The cooling tower startup and shutdown control method according to claim 1, wherein updating the cooling tower knowledge table according to the operation parameters, preset knowledge record days and the cooling tower operation record table comprises:
and storing the operation parameters into the cooling tower operation record table to obtain an updated cooling tower operation record table, counting the heat dissipation performance of each cooling tower according to the preset knowledge record counting days and the updated cooling tower operation record table, and storing the heat dissipation performance into the cooling tower knowledge table to obtain the updated cooling tower knowledge table.
3. The cooling tower startup and shutdown control method according to claim 1, wherein the step of determining the cooling tower to be started up according to the cooling water outlet temperature, the preset cooling tower startup temperature and the cooling tower knowledge table in the current state and starting up the cooling tower comprises the steps of:
judging whether the cooling water outlet temperature is greater than a preset cooling tower starting temperature or not to obtain a second judgment result;
and if the second judgment result is yes, determining the cooling tower to be started according to the cooling tower knowledge table in the current state and starting the cooling tower.
4. The cooling tower startup and shutdown control method according to claim 3, wherein determining the cooling tower to be shutdown and shutdown the cooling tower according to the cooling water outlet temperature, the preset cooling tower startup temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state comprises:
if the second judgment result is negative, judging whether the cooling water outlet temperature is greater than or equal to a preset cooling tower shutdown temperature or not, and obtaining a third judgment result;
if the third judgment result is yes, returning to the collection of the operation parameters and the operation time of each cooling tower in the cooling system in the current state after updating the current state;
and if the third judgment result is negative, determining the cooling tower to be shut down according to the cooling tower knowledge table in the current state and shutting down.
5. The cooling tower startup and shutdown control method according to claim 3, wherein before determining the cooling tower to be started up according to the cooling tower knowledge table in the current state and starting up the cooling tower, the method further comprises:
recording and judging process time; the judgment process time is greater than or equal to the preset continuous judgment time.
6. The cooling tower startup and shutdown control method according to claim 3, wherein the determining and starting up the cooling tower to be started up according to the cooling tower knowledge table in the current state comprises:
and inquiring the cooling tower knowledge table, and starting the cooling tower with the best heat dissipation performance in the stopped cooling towers.
7. The cooling tower on-off control method according to claim 1, wherein determining the cooling tower to be shut down and shutting down the cooling tower according to the cooling tower knowledge table in the current state comprises:
and inquiring the cooling tower knowledge table, and closing the cooling tower with the worst heat dissipation performance in the opened cooling towers.
8. A cooling tower switch machine control system, comprising:
the acquisition module is used for acquiring the operation parameters and the operation time of each cooling tower in the cooling system in the current state; the operation parameters comprise the tower inlet temperature and the tower outlet temperature of the cooling tower;
the first judgment module is used for judging whether the running time is greater than or equal to a preset running record storage period or not to obtain a first judgment result;
the first action module is used for updating the cooling tower knowledge table according to the operation parameters, the preset knowledge recording days and the cooling tower operation recording table if the first judgment result is yes, and executing the on-off control module by taking the updated cooling tower knowledge table as the cooling tower knowledge table in the current state;
the second action module is used for taking the cooling tower knowledge table in the previous state as the cooling tower knowledge table in the current state and executing the on-off control module if the first judgment result is negative;
the on-off control module comprises:
the starting module is used for determining a cooling tower to be started and starting the cooling tower according to the cooling water outlet temperature, the preset cooling tower starting temperature and the cooling tower knowledge table in the current state;
and the shutdown module is used for determining the cooling tower to be shut down according to the cooling water outlet temperature, the preset cooling tower starting temperature, the preset cooling tower shutdown temperature and the cooling tower knowledge table in the current state and shutting down the cooling tower.
9. The cooling tower on/off control system of claim 8, wherein the first action module comprises:
and the first action unit is used for storing the operation parameters into the cooling tower operation record table to obtain an updated cooling tower operation record table, counting the heat dissipation performance of each cooling tower according to preset knowledge record counting days and the updated cooling tower operation record table, and storing the heat dissipation performance into the cooling tower knowledge table to obtain the updated cooling tower knowledge table.
10. The cooling tower startup and shutdown control system of claim 8, wherein the startup module comprises:
the judging unit is used for judging whether the cooling water outlet temperature is greater than the preset starting temperature of the cooling tower or not to obtain a second judging result;
and the starting unit is used for determining the cooling tower to be started and starting the cooling tower according to the knowledge table of the cooling tower in the current state if the second judgment result is yes.
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| CN116736780B (en) * | 2023-08-15 | 2023-11-24 | 贵州汇通华城股份有限公司 | Startup and shutdown control optimization method and system for regional energy station |
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| AU2002952554A0 (en) * | 2002-10-31 | 2002-11-21 | Carter, Peter John Mr | Monitower |
| CN1818528A (en) * | 2006-03-08 | 2006-08-16 | 杭州电子科技大学 | Energy-saving controller of cooling tower set |
| CN104913407B (en) * | 2014-03-10 | 2018-05-11 | 广东金贝节能科技有限公司 | Water tower applied to water-source heat-pump central air conditioner |
| JP6334230B2 (en) * | 2014-03-31 | 2018-05-30 | 三機工業株式会社 | Refrigerator system |
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| CN110686382B (en) * | 2019-10-16 | 2021-02-09 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
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2021
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