CN107120886B - Automatic cooling system for thermal power plant and use method thereof - Google Patents
Automatic cooling system for thermal power plant and use method thereof Download PDFInfo
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- CN107120886B CN107120886B CN201710350978.4A CN201710350978A CN107120886B CN 107120886 B CN107120886 B CN 107120886B CN 201710350978 A CN201710350978 A CN 201710350978A CN 107120886 B CN107120886 B CN 107120886B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
- F25D1/02—Devices using naturally cold air or cold water using naturally cold water, e.g. household tap water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides an automatic cooling system for a thermal power plant and a using method thereof, and belongs to the technical field of equipment for the thermal power plant. It has solved the big scheduling problem of prior art design compressed air consumption. The automatic cooling system for the thermal power plant comprises temperature data acquisition modules arranged on the inner side walls of devices of the thermal power plant, the temperature data acquisition modules are connected with a temperature data comparison module, and the temperature data comparison module is further connected with a data storage module and a control circuit board, wherein the data storage module is used for storing temperature data threshold values of the inner sides of the devices of the thermal power plant. The automatic cooling system for the thermal power plant and the use method thereof have the advantages that: the first steam extraction execution module, the cooling water conveying execution module and the exhaust steam conveying execution module are respectively connected with the control module, so that the adjusting capacity of the system is improved, and the feedback capacity of the system is improved by the arrangement of the data acquisition module, the data storage module and the data analysis module, so that the operation method of the system is simpler and more convenient.
Description
Technical Field
The invention belongs to the technical field of equipment for thermal power plants, and particularly relates to an automatic cooling system for a thermal power plant and a using method thereof.
Background
The thermal power plant is called thermal power plant, and is a plant for producing electric energy by using combustible (such as coal) as fuel, and its basic production process is: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy. Although the supporting force for promoting clean energy is continuously increased in China at present, it is undeniable that a part of the electricity supply of China at present comes from thermal power generation, and the situation lasts for a long time, because the electricity generation of a thermal power plant depends on combustion of combustible materials to realize electricity generation, the requirements of relevant devices on detection and control of the temperature of the relevant devices are higher than those of other energy sources, how to well cool the relevant devices in the thermal power plant also becomes an important safety problem, the cooling measures of the existing thermal power plant are mostly manual operation, and the defects of large manpower consumption, large time consumption and the like exist.
In order to solve the problems of the prior art, people have long searched for and put forward various solutions. For example, chinese patent document discloses a cooling and noise reducing device for a main building of a gas power plant [ application No.: 201220248282.3], including generating set, air inlet axial fan, silencer, air outlet axial fan and double-layer sound-proof window, its characteristic is, there are air inlet axial fans on the wall under the generating set opposite, there are air outlet axial fans above its diagonal angle, the air inlet, air outlet axial fans are furnished with the silencer separately; the air inlet axial flow fan and the air outlet axial flow fan are paired and correspond to the generator set.
The above solution improves some problems of the prior art to some extent, but it also has at least the following drawbacks: only the fan is adopted to reduce the temperature, the cooling effect is poor, and the safety of each device in the thermal power plant cannot be guaranteed.
Disclosure of Invention
The invention aims to solve the problems and provides an automatic cooling system for a thermal power plant, which is reasonable in design and good in using effect.
The second object of the present invention is to provide an operating method of an automatic cooling system for thermal power plants, which is convenient to operate and control.
In order to achieve the purpose, the invention adopts the following technical scheme: the invention discloses an automatic cooling system for a thermal power plant, which comprises temperature data acquisition modules arranged on the inner side walls of all devices of the thermal power plant, wherein the temperature data acquisition modules are connected with a temperature data comparison module, the temperature data comparison module is also respectively connected with a data storage module and a control circuit board, the data storage module is used for storing temperature data threshold values inside all the devices of the thermal power plant, the control circuit board is connected with independent spraying modules which are arranged on the two longitudinal sides of all the devices of the thermal power plant and are in one-to-one correspondence with all the devices of the thermal power plant, and all the independent spraying modules are connected to a circulating water distribution assembly which is horizontally laid on the ground in common. The arrangement of the independent spraying modules which are arranged on the two longitudinal sides of each device of the thermal power generating unit and correspond to the devices of the thermal power generating unit one by one improves the pertinence of a cooling object, improves the working efficiency, saves water sources, realizes automatic operation by arranging the temperature data acquisition module, the temperature data comparison module and the control circuit board, and reduces the manual operation task.
According to the automatic cooling system for the thermal power plant, the circulating water distribution assembly comprises two circulating water distribution main pipes which are respectively arranged on the longitudinal two sides of each device of the thermal power unit; the stand alone type sprays the module and includes that two locate the vertical both sides of arbitrary device in the thermal power generating unit respectively and be the standpipe that sprays of vertical setting, every sprays the standpipe and is connected with a close circulating water delivery house steward, it serves and is equipped with first spray control valve to spray the standpipe and be close to circulating water delivery house steward, first spray control valve is connected with control circuit board, every sprays the standpipe on along its vertical direction even a plurality of spray horizontal branch pipe subassembly of locating of interval, spray horizontal branch pipe subassembly includes that two are located same height and symmetry and establish the horizontal branch pipe that sprays spraying at the vertical direction both sides of standpipe, it is equipped with the first shower head that a plurality of is the interval setting to spray on the horizontal branch pipe to be close to each device one side of thermal power generating unit. Simple structure, installation, maintenance convenience.
Foretell thermal power plant uses automatic cooling system, the stand alone type sprays the module and still includes fixed ripple shape installing support around locating any device outside in the thermal power unit, ripple shape installing support installs at least one rather than the shape, the ripple shape shower of size looks adaptation, a plurality of second shower heads are located to the ripple shape shower interval, the both ends of ripple shape shower are connected respectively on the circulating water distribution house steward of the same one side, the end of intaking that is close to circulating water distribution house steward on the ripple shape shower is equipped with the second and sprays the control valve, the second sprays the control valve and is connected with control circuit board. Further improving the cooling effect and the controllability.
In the automatic cooling system for the thermal power plant, the corrugated mounting bracket is provided with two corrugated spray pipes, and two ends of one corrugated spray pipe are respectively connected to the circulating water distribution main pipe on the other side; and a second spray pump is arranged at the water inlet end of the corrugated spray pipe close to the second spray control valve. The controllability and the spraying effect of spraying are enhanced.
Foretell automatic cooling system is used in thermal power plant, spray horizontal branch pipe and spray the standpipe and locate the siphon cover between. The spraying efficiency is improved.
In the automatic cooling system for the thermal power plant, the first spray pump is arranged on the spray vertical pipe close to the water inlet end of the first spray control valve; the height of the spray vertical pipe is 30-50 CM greater than that of the corresponding device in the thermal power generating unit. The spraying effect on the top of the device in the thermal power generating unit is enhanced.
In the automatic cooling system for the thermal power plant, the temperature data acquisition module comprises a plurality of temperature sensors arranged on the inner side of any device in the thermal power unit; the temperature data comparison module comprises at least one temperature data comparison circuit board; the data storage module comprises at least one data storage circuit board; the temperature data comparison circuit board is respectively connected with the temperature sensor, the temperature data comparison circuit board, the data storage circuit board and the control circuit board.
The use method of the automatic cooling system for the thermal power plant is characterized by comprising the following steps: the method comprises the following steps: step A: the method comprises the steps that detected temperature data of the inner side of any device in the thermal power generating unit are collected through a temperature data collecting module; and B: the temperature data acquired in the step A are transmitted to a temperature data comparison module, the temperature data comparison module compares the temperature data with data in a data storage module which stores temperature data threshold values of the inner sides of all devices of the thermal power generating unit to diagnose whether the temperature data detected in the step A exceed the temperature data threshold values or not, if yes, an early warning signal is immediately transmitted to a control circuit board, and if the temperature data are normal, a normal signal is sent; and C: if the control circuit board receives relevant signals transmitted from the temperature data comparison module, the control circuit board judges, and if early warning signals are received, the control circuit board immediately informs independent spraying modules at two longitudinal sides of a certain device of the thermal power generating unit exceeding the temperature data threshold value to start spraying operation, and the independent spraying modules stop spraying operation until normal signals transmitted from the temperature data comparison module are received; step D: and C, repeatedly executing the step A. The operation and the control are convenient, and the management is convenient.
According to the using method of the automatic cooling system for the thermal power plant, the independent spraying module judges whether a first spraying control valve on a spraying vertical pipe in the independent spraying module corresponding to a certain device of the thermal power unit exceeding the temperature data threshold value is needed to be opened or not according to the early warning level of the early warning signal, or a second spraying control valve on a corrugated spraying pipe in the independent spraying module corresponding to a certain device of the thermal power unit exceeding the temperature data threshold value is needed to be opened in addition. Improves the operation margin and increases the operation means
According to the using method of the automatic cooling system for the thermal power plant, the independent spraying module judges whether a first spraying pump on a spraying vertical pipe in the independent spraying module corresponding to a certain device of the thermal power unit exceeding the temperature data threshold value is needed to be opened or not according to the early warning level of the early warning signal, or a second spraying pump on a corrugated spraying pipe in the independent spraying module corresponding to a certain device of the thermal power unit exceeding the temperature data threshold value is needed to be opened in addition. The control means is added, and the cooling efficiency is improved.
Compared with the prior art, the automatic cooling system for the thermal power plant and the use method thereof have the advantages that: the first steam extraction execution module, the cooling water conveying execution module and the exhaust steam conveying execution module are respectively connected with the control module, so that the adjusting capacity of the system is improved, and the feedback capacity of the system is improved by the arrangement of the data acquisition module, the data storage module and the data analysis module, so that the operation method of the system is simpler and more convenient.
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 provides a schematic diagram of an embodiment of the present invention.
Fig. 2 provides another schematic structural diagram in an embodiment of the invention.
In the figure, a control circuit board a, a temperature data acquisition module b, a temperature sensor b1, a temperature data comparison module c, a temperature data comparison circuit board c1, a data storage module d, a data storage circuit board d1, an independent spray module 1, a spray vertical pipe 11, a first spray control valve 12, a spray horizontal branch pipe 13, a first spray header 14, a corrugated mounting bracket 15, a corrugated spray pipe 16, a second spray header 17, a second spray control valve 18, a second spray pump 19, a first spray pump 110, a siphon cover 111, a circulating water distribution assembly 2 and a circulating water distribution main pipe 21 are arranged.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 to 2, the automatic cooling system for thermal power plants comprises a temperature data acquisition module b arranged on the inner side wall of each device of the thermal power plant, the temperature data acquisition module b is connected with a temperature data comparison module c, the temperature data comparison module c is also respectively connected with a data storage module d and a control circuit board a for storing the temperature data threshold value of the inner side of each device of the thermal power plant, the control circuit board a is connected with independent spraying modules 1 which are arranged on the two longitudinal sides of each device of the thermal power plant and are in one-to-one correspondence with the devices of the thermal power plant, all the independent spraying modules 1 are connected to a circulating water distribution assembly 2 which is horizontally laid on the ground in common, the arrangement of the independent spraying modules 1 which are arranged on the two longitudinal sides of each device of the thermal power plant and are in one-to-one correspondence with the devices of the thermal power plant improves the pertinence of a cooling object, improves the working efficiency and saves water sources, the temperature data acquisition module b, the temperature data comparison module c and the control circuit board a are arranged, so that automatic operation is realized, and manual operation tasks are reduced.
Specifically, the circulating water distribution assembly 2 comprises two circulating water distribution main pipes 21 which are respectively arranged at two longitudinal sides of each device of the thermal power generating unit; the independent spraying module 1 comprises two vertical spraying vertical pipes 11 which are respectively arranged at two longitudinal sides of any device in a thermal power generating unit and are vertically arranged, each vertical spraying pipe 11 is connected with a close circulating water distribution main pipe 21, one end of each vertical spraying pipe 11, which is close to the circulating water distribution main pipe 21, is provided with a first spraying control valve 12, the first spraying control valve 12 is connected with a control circuit board a, each vertical spraying pipe 11 is uniformly arranged on a plurality of horizontal spraying branch pipe assemblies at intervals along the vertical direction of the vertical spraying pipe 11, each horizontal spraying branch pipe assembly comprises two horizontal spraying branch pipes 13 which are positioned at the same height and symmetrically arranged at two sides of the vertical spraying pipe 11 in the vertical direction, one side of each horizontal spraying branch pipe 13, which is close to each device of the thermal power generating unit, is provided with a plurality of first spraying heads 14 at intervals, and has the advantages of simple structure and convenient installation and convenient maintenance; the independent spraying module 1 further comprises a fixed corrugated mounting support 15 wound on the outer side of any device in the thermal power generating unit, at least one corrugated spraying pipe 16 matched with the corrugated mounting support 15 in shape and size is mounted on the corrugated mounting support 15, the corrugated spraying pipes 16 are arranged on a plurality of second spraying heads 17 at intervals, two ends of each corrugated spraying pipe 16 are respectively connected to a circulating water distribution main pipe 21 on the same side, a second spraying control valve 18 is arranged at a water inlet end, close to the circulating water distribution main pipe 21, of each corrugated spraying pipe 16, and the second spraying control valves 18 are connected with a control circuit board a, so that the cooling effect and the controllability are further improved; the corrugated mounting bracket 15 is provided with two corrugated spray pipes 16, and two ends of one corrugated spray pipe 16 are respectively connected to the circulating water distribution main pipe 21 on the other side; a second spraying pump 19 is arranged at the water inlet end of the corrugated spraying pipe 16 close to the second spraying control valve 18, so that the spraying controllability and the spraying effect are enhanced.
Furthermore, a siphon cover 111 is arranged between the spraying horizontal branch pipe 13 and the spraying vertical pipe 11, so that the spraying efficiency is improved; the spray standpipe 11 is provided with a first spray pump 110 at the water inlet end close to the first spray control valve 12; the height of the spray vertical pipe 11 is 30-50 CM greater than that of the corresponding device in the thermal power generating unit, so that the spray effect on the top of the device in the thermal power generating unit is enhanced; the temperature data acquisition module b comprises a plurality of temperature sensors b1 arranged on the inner side of any device in the thermal power generating unit; the temperature data comparison module c comprises at least one temperature data comparison circuit board c 1; the data storage module d comprises at least one data storage circuit board d 1; the temperature data comparison circuit board c1 is connected with the temperature sensor b1, the temperature data comparison circuit board c1, the data storage circuit board d1 and the control circuit board a, respectively.
The operation method of the automatic cooling system for the thermal power plant comprises the following steps: step A: the detected temperature data of the inner side of any device in the thermal power generating unit is collected through a temperature data collecting module b; and B: the temperature data acquired in the step A are transmitted to a temperature data comparison module c, the temperature data comparison module c compares the temperature data with data in a data storage module d which stores temperature data threshold values of the inner sides of all devices of the thermal power generating unit so as to diagnose whether the temperature data detected in the step A exceed the temperature data threshold values or not, if yes, an early warning signal is immediately transmitted to a control circuit board a, and if the temperature data are normal, a normal signal is sent; and C: if the control circuit board a receives the relevant signals transmitted from the temperature data comparison module c and then judges, if the control circuit board a receives the early warning signals, the control circuit board a immediately informs the independent spraying modules 1 positioned at the two longitudinal sides of a certain device of the thermal power generating unit exceeding the temperature data threshold value to start spraying operation, and the independent spraying modules 1 stop spraying operation until the control circuit board a receives normal signals transmitted from the temperature data comparison module c; step D: and step A is repeatedly executed, so that the operation and the control are convenient, and the management is convenient.
Specifically, the independent spraying module 1 herein judges whether it is only necessary to open the first spraying control valve 12 on the spraying vertical pipe 11 in the independent spraying module 1 corresponding to a certain device of the thermal power generating unit exceeding the temperature data threshold value or additionally open the second spraying control valve 18 on the corrugated spraying pipe 16 in the independent spraying module 1 corresponding to a certain device of the thermal power generating unit exceeding the temperature data threshold value according to the early warning level of the early warning signal, so that the operating margin is improved, and the control means is increased; the independent spraying module 1 judges whether the first spraying pump 110 on the spraying vertical pipe 11 in the independent spraying module 1 corresponding to a certain device of the thermal power generating unit exceeding the temperature data threshold needs to be opened or not according to the early warning grade of the early warning signal, or the second spraying pump 19 on the corrugated spraying pipe 16 in the independent spraying module 1 corresponding to a certain device of the thermal power generating unit exceeding the temperature data threshold needs to be opened in addition, so that the operation and control means are increased, and the cooling efficiency is improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms control circuit board a, temperature data acquisition module b, temperature sensor b1, temperature data comparison module c, temperature data comparison circuit board c1, data storage module d, data storage circuit board d1, independent spray module 1, spray stack 11, first spray control valve 12, spray horizontal leg 13, first spray header 14, corrugated mounting bracket 15, corrugated spray pipe 16, second spray header 17, second spray control valve 18, second spray pump 19, first spray pump 110, siphon bell 111, circulating water distribution assembly 2, circulating water distribution header 21, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (6)
1. The use method of the automatic cooling system for the thermal power plant comprises the steps that the temperature data acquisition module (b) is arranged on the inner side wall of each device of the thermal power plant, the temperature data acquisition module (b) is connected with the temperature data comparison module (c), the temperature data comparison module (c) is further connected with a data storage module (d) and a control circuit board (a) which are used for storing temperature data threshold values inside each device of the thermal power plant respectively, the control circuit board (a) is connected with independent spraying modules (1) which are arranged on the longitudinal two sides of each device of the thermal power plant and correspond to the devices of the thermal power plant one by one, and all the independent spraying modules (1) are connected to a circulating water distribution assembly (2) which is horizontally laid on the ground in a sharing mode; the circulating water distribution assembly (2) comprises two circulating water distribution main pipes (21) which are respectively arranged at two longitudinal sides of each device of the thermal power generating unit; the independent spraying module (1) comprises two vertical spraying vertical pipes (11) which are respectively arranged at two longitudinal sides of any device in the thermal power generating unit and are vertically arranged, each vertical spraying pipe (11) is connected with one adjacent circulating water distribution main pipe (21), a first spray control valve (12) is arranged at one end of the spray vertical pipe (11) close to the circulating water distribution main pipe (21), the first spray control valve (12) is connected with the control circuit board (a), a plurality of spray horizontal branch pipe assemblies are uniformly arranged on each spray vertical pipe (11) along the vertical direction at intervals, the spraying horizontal branch pipe assembly comprises two spraying horizontal branch pipes (13) which are positioned at the same height and symmetrically arranged at two sides of the vertical direction of the spraying vertical pipe (11), a plurality of first spray headers (14) arranged at intervals are arranged on one side of the spray horizontal branch pipe (13) close to each device of the thermal power generating unit; independent type spray module (1) still including fixed ripple shape installing support (15) around locating any device outside in the thermal power unit, ripple shape installing support (15) install at least one rather than shape, size looks adaptation ripple shape shower (16), ripple shape shower (16) interval locate a plurality of second shower heads (17), the both ends of ripple shape shower (16) connect respectively on the circulating water distribution house steward (21) of the same one side, ripple shape shower (16) on be close to the end of intaking of circulating water distribution house steward (21) and be equipped with second spray control valve (18), second spray control valve (18) and control circuit board (a) be connected characterized by: the using method comprises the following steps:
step A: the method comprises the following steps of (a) collecting detected temperature data of the inner side of any device in the thermal power generating unit through a temperature data collecting module (b);
and B: the temperature data acquired in the step A are transmitted to a temperature data comparison module (c), the temperature data comparison module (c) compares the temperature data with data in a data storage module (d) which stores temperature data threshold values of the inner sides of all devices of the thermal power generating unit to diagnose whether the temperature data detected in the step A exceed the temperature data threshold values or not, if yes, an early warning signal is immediately transmitted to a control circuit board (a), and if the temperature data are normal, a normal signal is sent;
and C: if the control circuit board (a) receives the relevant signals transmitted from the temperature data comparison module (c) and then judges, if the control circuit board receives the early warning signals, the control circuit board immediately informs the independent spraying modules (1) at the two longitudinal sides of a certain device of the thermal power generating unit exceeding the temperature data threshold value to start spraying operation, and the independent spraying modules (1) are stopped from spraying operation until normal signals transmitted from the temperature data comparison module (c) are received;
step D: repeatedly executing the step A;
the independent spraying module (1) judges whether a first spraying control valve (12) on a spraying vertical pipe (11) in the independent spraying module (1) corresponding to a certain device of the thermal power generating unit exceeding the temperature data threshold value is required to be opened or not according to the early warning grade of the early warning signal, and a second spraying control valve (18) on a corrugated spraying pipe (16) in the independent spraying module (1) corresponding to the certain device of the thermal power generating unit exceeding the temperature data threshold value is required to be opened in addition.
2. The use method of the automatic cooling system for the thermal power plant according to claim 1, wherein the independent spraying module (1) judges whether only a first spraying pump (110) on a spraying vertical pipe (11) in the independent spraying module (1) corresponding to the thermal power unit exceeding the temperature data threshold needs to be turned on or not and additionally a second spraying pump (19) on a corrugated spraying pipe (16) in the independent spraying module (1) corresponding to the thermal power unit exceeding the temperature data threshold needs to be turned on according to the early warning level of the early warning signal.
3. The use method of the automatic cooling system for the thermal power plant according to claim 1, wherein the corrugated mounting bracket (15) is provided with two corrugated spraying pipes (16), and two ends of one corrugated spraying pipe (16) are respectively connected to the circulating water distribution main pipe (21) on the other side; and a second spraying pump (19) is arranged at the water inlet end of the corrugated spraying pipe (16) close to the second spraying control valve (18).
4. The use method of the automatic cooling system for the thermal power plant according to claim 1, wherein a siphon cover (111) is arranged between the spraying horizontal branch pipe (13) and the spraying vertical pipe (11).
5. The use method of the automatic cooling system for the thermal power plant according to claim 1, wherein a first spray pump (110) is arranged on the spray vertical pipe (11) close to the water inlet end of the first spray control valve (12); the height of the spray vertical pipe (11) is 30-50 CM greater than that of the corresponding device in the thermal power generating unit.
6. The use method of the automatic cooling system for the thermal power plant according to any one of claims 3 to 5, wherein the temperature data acquisition module (b) comprises a plurality of temperature sensors (b 1) arranged on the inner side of any one device in the thermal power plant; the temperature data comparison module (c) comprises at least one temperature data comparison circuit board (c 1); said data storage module (d) comprising at least one data storage circuit board (d 1); the temperature data comparison circuit board (c 1) is respectively connected with the temperature sensor (b 1), the temperature data comparison circuit board (c 1), the data storage circuit board (d 1) and the control circuit board (a).
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