CN116538665A - Control system and method based on cold accumulation and discharge pre-adjustment subway station air conditioning model - Google Patents
Control system and method based on cold accumulation and discharge pre-adjustment subway station air conditioning model Download PDFInfo
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- CN116538665A CN116538665A CN202310623134.8A CN202310623134A CN116538665A CN 116538665 A CN116538665 A CN 116538665A CN 202310623134 A CN202310623134 A CN 202310623134A CN 116538665 A CN116538665 A CN 116538665A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 65
- 238000009825 accumulation Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 230000003993 interaction Effects 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 4
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000007710 freezing Methods 0.000 description 7
- 230000008014 freezing Effects 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control system and a control method based on a cold accumulation and discharge pre-adjustment subway station air conditioning model, wherein the control system comprises a heating ventilation air conditioning device arranged in a subway station, a data processing module electrically connected with the heating ventilation air conditioning device, a man-machine interaction terminal, a cold amount metering device, a water temperature detection device for water supply and return and an indoor environment detection device which are respectively electrically connected with the data processing module, the cold amount metering device is used for collecting cold amount supplied by a cold water supply pipeline, the water temperature detection device for water supply and return is used for detecting and collecting temperature of chilled water supply and return, the indoor environment detection device is used for detecting and collecting indoor environment data, and the man-machine interaction terminal is used for displaying currently collected data and controlling the data processing control device. The control system and the control method can effectively store and discharge cold in advance in the peak period.
Description
Technical Field
The invention relates to the technical field of subway station environmental control, in particular to a control system and a control method based on a cold accumulation and discharge pre-adjustment subway station air conditioning model.
Background
The current environmental control system adopted in the air conditioning system of the subway station in China generally adopts a flowmeter mode to calculate the cold quantity, the cold quantity is not calculated and is only used as a display parameter and not used as a control parameter, the air conditioning system in the station operates according to the set fixed outlet water temperature, the system adjusts the operating condition of the system equipment according to the backwater temperature monitoring value to ensure the cold quantity of the air conditioner, but the method has the problems of large hysteresis, feedback ageing running difference and the like, and the defects of the method are particularly obvious when the system is in the early peak and the late peak. The system can not quickly adjust the operation parameters of the air conditioning system in the station through the load change of the air conditioner in the station, and has the defects of poor comfort of the body feeling in the station, energy waste and the like. Such as Chinese patent: 202211259864.6 an outdoor weather follow-up regulation based subway station air conditioner control system and method are disclosed, and the device and method can control the temperature by data processing according to outdoor weather parameters and combining indoor environment parameters, but when the outdoor weather parameters are met in a peak period, the method can cause the regulation and control of an air conditioner to have hysteresis due to the increase of the flow of people, so that inaccuracy is caused.
Disclosure of Invention
Aiming at the problems in the background art, the invention aims to provide a control system and a control method based on cold accumulation and discharge pre-adjustment of an air conditioning model of a subway station, so as to solve the problems in the background art.
The technical aim of the invention is realized by the following technical scheme:
the control system based on the air conditioning model of the subway station with the cold accumulation and pre-adjustment comprises a heating ventilation air conditioning device arranged in the subway station, a data processing module electrically connected with the heating ventilation air conditioning device, a man-machine interaction terminal, a cold amount metering device, a water temperature detection device for supplying and returning water and an indoor environment detection device, wherein the man-machine interaction terminal, the cold amount metering device, the water temperature detection device for supplying and returning water are respectively electrically connected with the data processing module, the cold amount metering device is used for collecting cold amount supplied by a cold water supply pipeline, the water temperature detection device for supplying and returning water is used for detecting and collecting cold water supply and returning water temperature, the indoor environment detection device is used for detecting and collecting indoor environment data, and the man-machine interaction terminal is used for displaying currently collected data and controlling the data processing control device.
Further, the cold quantity measuring device is arranged on a cold water return pipe of the heating ventilation air conditioning device.
Further, the water temperature detection device for the water supply and return is arranged on a cold water return pipe of the heating ventilation air conditioning device.
Further, the indoor environment detection device is arranged on the inner wall of the subway station.
Further, the touch display device comprises a device shell with a rectangular structure, an intelligent interaction terminal screen, a control switch, a safety voltage conversion device, a data processing module and an external terminal electrically connected with each component, wherein the intelligent interaction terminal screen is arranged on the device shell;
the intelligent interactive terminal screen is electrically connected with the data processing module, the safety voltage conversion device is electrically connected with each component and externally connected with a power supply, the safety voltage conversion device is controlled to be turned on and turned off by a control switch, and the data processing module is electrically connected with the data processing control device.
Further, a plurality of sections of wire slots are arranged in the device shell, and a transmission line in the touch display device is arranged on the wire slots.
Further, the external terminal is electrically connected with each component through a data acquisition cable.
The application also discloses a control method based on the cold accumulation and release pre-adjustment subway station air conditioning model, which comprises the steps of processing cold supply data in a history station through data, calculating an output parameter value for a heating ventilation air conditioning device in the station by combining indoor environment parameters, and adjusting the cold supply of an air conditioning water system, the water temperature in a cold water pipeline, the temperature value of an indoor air conditioner and the air quantity of the indoor air conditioner in real time to guide the temperature setting and operation of the air conditioning system.
Further, the method further comprises the step of presetting a passenger flow peak period, and through pre-cold storage control, the output air conditioner set value can be reduced in advance, the cold water supply temperature of an air conditioning system is reduced, the cold water temperature in a freezing water pipe is reduced, and pre-cold storage is performed on the freezing water in advance so as to cope with the upcoming passenger flow peak.
Furthermore, the method also comprises the step of presetting a time period after a passenger flow peak period, and the water supply temperature set value of the chilled water of the air conditioner can be raised in advance through pre-cooling control, so that the temperature of the cold water in the chilled water pipe is raised, the chilled water is pre-cooled in advance, and the energy efficiency of the system is improved.
In summary, the invention has the following advantages: the system and the method can analyze and calculate the cold quantity required by the air conditioner load in the future period through data processing according to the period and the air conditioner load change parameters in the station and combining with the historical air conditioner cold quantity demand load change data through an intelligent module, output parameter values to a central air conditioning system in the station, guide the air conditioning system to cool or heat water in an air conditioner freezing water pipe in advance through adjusting the air conditioner water supply temperature value and the large system air quantity, achieve the effect of cold accumulation and cold release in advance of the system, enable the cold accumulation quantity of the system to stably transition into the peak or low peak air conditioner load section in the future period, simultaneously realize that the whole operation of the system equipment is always in the most efficient state, and enable the air conditioner control system to be upgraded to predictive energy-saving control through feedback type control.
Drawings
FIG. 1 is a system block diagram of the present invention;
FIG. 2 is a schematic diagram of the structure of the man-machine interaction terminal device of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
fig. 4 is a graph of the total daily cooling load demand in a typical subway station.
In the figure: 1. a device housing; 2. an intelligent interaction terminal screen; 3. a control switch; 4. a safety voltage conversion device; 5. a data processing module; 6. a wire slot; 7. an external terminal; 8. a data acquisition cable; 9. a cold quantity measuring device; 10. a data acquisition unit; 11. a cold water supply temperature acquisition device; 12. a cold water supply pipe; 13. a water temperature detection device for the water supply and return; 14. a cold water return pipe; 15. an indoor environment detection device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an embodiment, and provides a control system based on a cold accumulation and release pre-adjustment subway station air conditioning model, as shown in fig. 1-3:
the control system based on the air conditioning model of the subway station with the cold accumulation and pre-adjustment comprises a heating ventilation air conditioning device arranged in the subway station, a data processing module 5 electrically connected with the heating ventilation air conditioning device, a man-machine interaction terminal, a cold quantity measuring device 9, a water temperature measuring device 13 for supplying and returning water and an indoor environment detecting device 15, wherein the cold quantity measuring device 9 is used for collecting cold quantity supplied by a cold water supply pipe 12, the water temperature measuring device 13 for supplying and returning water is used for detecting and collecting water temperature for supplying and returning chilled water, the indoor environment detecting device 15 is used for detecting and collecting indoor environment data, and the man-machine interaction terminal is used for displaying currently collected data and controlling the data processing control device.
The cold quantity measuring device 9 is arranged on a cold water return pipe 14 of the heating ventilation air conditioning device; the water temperature detection device 13 for the water supply and return is arranged on a cold water return pipe 14 of the heating ventilation air conditioning device; the indoor environment detection device 15 is arranged on the inner wall of the subway station, the touch display device comprises a device shell 1 with a rectangular structure, an intelligent interaction terminal screen 2 arranged on the device shell 1, a control switch 3 arranged in the device shell 1, a safety voltage conversion device 4, a data processing module 5 and an external terminal 7 electrically connected with each component, a single door is arranged on one side of the device shell 1, and the intelligent interaction terminal screen 2 is arranged on the single door; the intelligent interactive terminal screen 2 is electrically connected with the data processing module 5, the safety voltage conversion device 4 is electrically connected with each part and externally connected with a power supply, the data processing module 5 is electrically connected with the data processing control device respectively, and the shell is made of plastic-sprayed stainless steel. A plurality of sections of wire slots 6 are arranged in the device shell 1, and transmission lines in the touch display device are arranged on the wire slots 6. The external terminal 7 is electrically connected with each component through a data acquisition cable 8.
The principle of the system is as follows: the man-machine interaction terminal is used for displaying the environmental parameters in the current station and the temperature and cold quantity of cold water supply and return water in real time, and setting the intermediate parameters of the given value of the air conditioner in the output station; the data acquisition processing and control module is used for processing the cold water supply cooling capacity and the data of the indoor sensing device, and calculating and outputting given intermediate parameters of the air conditioner through data analysis processing. The cold quantity measuring device 9 is used for collecting cold quantity supplied by the cold water supply pipe 12; the temperature and humidity sensing device is used for sensing the temperature and humidity in the station entering channel, the station platform and the station hall; the cold water supply water temperature acquisition device 11 is used for sensing the temperature of the chilled water supply water return; the switch is used for switching on and off a power supply of the device; the safety voltage conversion module provides a power supply meeting the safety voltage requirement for the device; the data acquisition cable 8 is used for linking the sensing device of the data acquisition unit 10 with the data acquisition processing and analysis calculation control module; a heating ventilation air conditioner control device in a subway station controls a water system of an air conditioner through cold water cooling capacity data acquisition, loads and unloads the running cold capacity load of the air conditioner system, and carries out the addition and subtraction of running frequency on the air quantity of a large system.
The control method based on the cold accumulation and pre-adjustment subway station air conditioning model comprises the steps of processing cold supply data in a history station through data, calculating output parameter values for a heating ventilation air conditioning device in the station by combining indoor environment parameters, adjusting the cold supply of an air conditioning water system, the water temperature in a cold water pipeline, the temperature value of an indoor air conditioner and the air volume of the indoor air conditioner in real time, guiding the temperature setting and operation of the air conditioning system, and collecting and analyzing the cold water supply and water cooling capacity of the air conditioning water system and the temperature and humidity data of an entrance channel, a station hall layer and a platform layer of the subway station through an intelligent control module; collecting the cold supply data of the previous section (adjustable one week) in each minute, obtaining the cold supply required by the corresponding time interval in the current future through data analysis and processing, calculating the time (adjustable 10 minutes) for pre-accumulating and releasing cold in advance when the time for pre-accumulating and releasing cold arrives, and reducing or increasing the set value of the freezing water supply temperature of the air conditioner in advance so as to reduce or increase the water temperature in the freezing water pipe and achieve the pre-accumulating and releasing cold function of the system; the system also comprises a preset passenger flow peak period, and the preset air conditioner set value can be reduced in advance through the pre-cold storage control, the cold water supply temperature of an air conditioning system is reduced, the cold water temperature in a freezing water pipe is reduced, and the chilled water is pre-stored in advance so as to cope with the upcoming passenger flow peak; the system also comprises a time period after a preset passenger flow peak period, the set value of the water supply temperature of the chilled water of the air conditioner can be improved in advance through pre-cooling control, the temperature of the cold water in the chilled water pipe is improved, the chilled water is pre-cooled in advance, and the energy efficiency of the system is improved.
As shown in fig. 4, temperature and humidity data in the station, air-conditioning cold water supply and water supply meter data and air-conditioning cold water supply and water return thermometer data are detected, and the air-conditioning cold water supply data in the station in the current period are obtained through analysis and calculation of a data acquisition processing and analysis calculation control module; recording the air conditioner cooling capacity and the temperature and humidity data in the station in one week (adjustable); the required cold energy average value Q in the station of the day time period is obtained through analysis and calculation processing of the recorded data; when the required cold energy average value of a certain period is Q, the required cold energy average value of the pre-storage cold-releasing period is Q1 which is delayed by 10 minutes (adjustable) in the future. The method comprises the steps that the real-time output cold quantity Q2 in the current period is compared with a required cold quantity average value Q1 corresponding to the pre-accumulation cold release period, a temperature protection interval X is set, and when the difference value is within the temperature protection interval range, the output air conditioner temperature set value is not changed; when the real-time output cold quantity Q2 is smaller than the required cold quantity average value Q1 of the pre-accumulation and discharge period and is larger than the temperature protection interval X, the output air conditioner temperature set value is reduced, the output cold quantity of the subway station air conditioning system is increased, the cold water temperature in the chilled water pipe is reduced, and the pre-accumulation of the chilled water is performed in advance. Otherwise, the set value of the output air conditioner is improved, the output cooling capacity of the air conditioning system of the subway station is reduced, and the chilled water is pre-cooled in advance. Before the peak section of the passenger flow comes, the output air conditioner set value can be reduced in advance through the pre-cold storage control, the cold water supply temperature of an air conditioning system is reduced, the cold water temperature in a freezing water pipe is reduced, and the chilled water is pre-stored in advance so as to cope with the upcoming peak of the passenger flow. Before the passenger flow peak passes, through the pre-cooling control, the water supply temperature set value of the chilled water of the air conditioner can be raised in advance, the temperature of the cold water in the chilled water pipe is raised, the chilled water is pre-cooled in advance, and the energy efficiency of the system is improved.
The control system device can effectively solve the problems that the existing subway air conditioner control system is low in energy efficiency and untimely in response caused by the following large hysteresis of the air conditioner system caused by simply setting and fixing the same host water outlet temperature operation for the steep increase or steep decrease of passenger flow before and after the early and late peak stage. On the basis of ensuring the transition comfort feeling in the process of entering a station of passengers and the waiting comfort of a subway station hall and a platform, the energy consumption of a subway air conditioning system is reduced and the energy efficiency of the whole subway air conditioning system is improved on the premise of ensuring the safety, and the running cost is saved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Control system based on hold cold preconditioning subway station air conditioning model, including setting up the heating ventilation air conditioning unit in the subway station, its characterized in that: the system comprises a heating ventilation air conditioning device, a data processing module, a man-machine interaction terminal, a cold quantity measuring device, a water temperature detecting device and an indoor environment detecting device, wherein the data processing module is electrically connected with the heating ventilation air conditioning device, the man-machine interaction terminal, the cold quantity measuring device, the water temperature detecting device and the indoor environment detecting device are electrically connected with the data processing module, the cold quantity measuring device is used for collecting cold quantity supplied by a cold water supply pipeline, the water temperature detecting device is used for detecting and collecting water temperature supplied by chilled water, the indoor environment detecting device is used for detecting and collecting indoor environment data, and the man-machine interaction terminal is used for displaying currently collected data and controlling the data processing control device.
2. The control system based on the cold accumulation and release preconditioning subway station air conditioning model according to claim 1, wherein: the cold quantity measuring device is arranged on a cold water return pipe of the heating ventilation air conditioning device.
3. The control system based on the cold accumulation and release preconditioning subway station air conditioning model according to claim 1, wherein: the water temperature detection device for the water supply and return is arranged on a cold water return pipe of the heating ventilation air conditioning device.
4. The control system based on the cold accumulation and release preconditioning subway station air conditioning model according to claim 1, wherein: the indoor environment detection device is arranged on the inner wall of the subway station.
5. The control system based on the air conditioning model of the cold pre-conditioning subway station according to any one of claims 1 to 4, wherein: the touch display device comprises a device shell with a rectangular structure, an intelligent interaction terminal screen, a control switch, a safe voltage conversion device, a data processing module and an external terminal, wherein the intelligent interaction terminal screen is arranged on the device shell;
the intelligent interactive terminal screen is electrically connected with the data processing module, the safety voltage conversion device is electrically connected with each component and externally connected with a power supply, the safety voltage conversion device is controlled to be turned on and turned off by a control switch, and the data processing module is electrically connected with the data processing control device.
6. The control system based on the cold accumulation and release pre-conditioning subway station air conditioning model according to claim 5, wherein: a plurality of sections of wire slots are arranged in the device shell, and a transmission line in the touch display device is arranged on the wire slots.
7. The control system based on the cold accumulation and release pre-conditioning subway station air conditioning model according to claim 5, wherein: the external terminal is electrically connected with each component through a data acquisition cable.
8. The control method for the air conditioning model of the subway station based on the cold storage and release pre-adjustment is characterized by comprising the following steps of: the method is realized on the basis of the control system based on the air conditioning model of the subway station with cold accumulation and discharge pre-adjustment according to any one of claims 1-7, the method is characterized in that the cold supply data in the history station is processed through data, the indoor environment parameters are combined, the output parameter value is calculated and given to a heating, ventilation and air conditioning device in the station, the cold supply capacity of an air conditioning water system, the water temperature in a cold water pipeline, the indoor air conditioning temperature value and the indoor air conditioning air quantity are regulated in real time, and the temperature setting and operation of the air conditioning system are guided.
9. The control method based on the cold accumulation and release pre-conditioning subway station air conditioning model according to claim 8, further comprising presetting a passenger flow peak period, reducing an output air conditioning set value in advance, reducing the cold water supply temperature of an air conditioning system, reducing the cold water temperature in a chilled water pipe, and pre-accumulating cold water in advance to cope with the upcoming passenger flow peak through pre-cold accumulation control.
10. The control method based on the cold accumulation and discharge pre-adjustment subway station air conditioning model according to claim 9, further comprising the step of presetting a time period after a passenger flow peak period, and through pre-cooling control, the water supply temperature set value of the chilled water of the air conditioner can be raised in advance, the temperature of cold water in the chilled water pipe is raised, pre-cooling is performed on the chilled water in advance, and the energy efficiency of the system is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310623134.8A CN116538665A (en) | 2023-05-30 | 2023-05-30 | Control system and method based on cold accumulation and discharge pre-adjustment subway station air conditioning model |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310623134.8A CN116538665A (en) | 2023-05-30 | 2023-05-30 | Control system and method based on cold accumulation and discharge pre-adjustment subway station air conditioning model |
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| CN116538665A true CN116538665A (en) | 2023-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117290939A (en) * | 2023-11-24 | 2023-12-26 | 中国铁路设计集团有限公司 | Cold accumulation design calculation method suitable for subway station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117290939A (en) * | 2023-11-24 | 2023-12-26 | 中国铁路设计集团有限公司 | Cold accumulation design calculation method suitable for subway station |
| CN117290939B (en) * | 2023-11-24 | 2024-03-22 | 中国铁路设计集团有限公司 | Cold accumulation design calculation method suitable for subway station |
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