Subway station public area radiant cooling system based on passenger flow distribution

Abstract

The utility model discloses a subway station public area radiation cold supply system based on passenger flow distribution, which comprises a refrigeration device, a cooling water pump and a water chilling unit which are connected in sequence and form a circulation loop; an inlet of the water segregator is connected with the water chilling unit, a first outlet of the water segregator is connected with the fresh air conditioning unit, and a second outlet of the water segregator is connected with the radiation tail end cooling device through a water mixing temperature adjusting valve; the radiation tail end cooling device comprises assembly type radiation cooling suspended ceiling plates connected with suspended ceiling main keels at the tops of a station hall public area and a platform public area of a subway station. A first inlet of the water collector is connected with a water return pipeline of the fresh air conditioning unit, and a second inlet of the water collector is connected with the water mixing temperature adjusting valve and a water return pipeline of the radiation tail end cooling device at the same time. The problems that a traditional cold source system excessively cools and excessively supplies fresh air in a tall and large space of a station hall and platform public area are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of subway cooling, and particularly relates to a radiant cooling system for the public area of a subway station based on passenger flow distribution. Background Technique

[0002] The environmental control system of a subway station is related to the riding comfort of passengers, fire smoke exhaust safety and operation energy consumption. The environmental control system is divided into the station ventilation and air conditioning system and the tunnel ventilation system. The station ventilation and air conditioning system is divided into the air conditioning system for the public area of the concourse and platform and the air conditioning system for the equipment management rooms to ensure the operation of trains; the tunnel ventilation system is mainly used to exhaust heat from the interval tunnel where the train runs and meet the fire protection function in case of fire. Since most of the subway stations and tunnels are in underground spaces, piston air ducts are usually set in the interval tunnel to communicate with the outside, and the huge piston air pressure generated by the train operation is discharged through the piston air ducts. The heat generated by the train running in the interval tunnel causes the temperature in the interval tunnel to be relatively high. The temperature in the tunnel is higher than the outdoor atmospheric temperature. In summer in southern China, the highest temperature in the tunnel even reaches 40°C. The public area of the station is the area where passengers move. The primary return air conditioning system is set in the public area of most subway stations in cities. The temperature in the public area of the station is usually between 27°C and 29°C. In order to avoid the influence of the hot air in the tunnel on the air conditioning system in the public area of the station due to the piston air pressure, screen doors are usually set between the platform and the interval tunnel. The screen doors are closed when passengers are waiting for the train and opened when the train stops at the station for passengers to get on and off. Since the screen doors cannot be strictly closed, a part of the air pressure of the piston effect of the train is discharged through the piston air duct, and the other part enters the public area of the station and then is discharged through the station entrances and exits. When the train enters the station, the tunnel is at a positive pressure relative to the public area of the station, and the piston air pressure brings the hot air in the interval tunnel into the station, so that the cold air in the public area of the station seeps out of the station through the station entrances and exits; when the train leaves the station, the tunnel is at a negative pressure relative to the public area of the station, and the piston air pressure brings the cold air in the public area of the station into the tunnel, and then the hot air outside the station enters the station through the station entrances and exits. The train entering and leaving the station completes the air exchange between the public area of the station, the tunnel and the outside of the station, resulting in the loss of the cold quantity of the station.

[0003] At present, the air conditioning systems in the public areas of stations in China are all designed for the fresh air volume and cooling capacity according to the long-term passenger flow, without considering the fresh air volume brought by the piston air pressure of the station from the entrances and exits. There are phenomena of excessive fresh air supply and excessive cooling supply in the air conditioning system. The traditional cold air supply system adopted by the air conditioning system can only reduce but cannot avoid the influence of the piston wind on the cold air air conditioning system.

[0004] Secondly, the area of subway stations is relatively large. Due to a large number of complex equipment pipelines and a relatively high floor height, often more than 5 meters, in order to arrange complex equipment pipelines, the service area of the air conditioning system in the public area of the station is the entire large-volume and high-space area, while the area where passengers move is only below 2 meters. Therefore, there are many areas in the public area where the probability of passenger movement is very small, and the air conditioning system operates all year round. The routes of passengers entering and leaving the station show very obvious patterns. After passengers enter the public area of the concourse from the entrance and exit, most people use mobile phone automatic payment. The passenger flow route is from the entrance and exit to the entrance gate. Only a small number of passengers first go to the automatic fare collection machine to buy tickets and then enter the gate. After entering the gate, they take the escalator to the public area of the platform, and then queue up in the waiting area; when passengers leave the station, after getting off the train, they enter the public area of the station platform, then take the escalator to the public area of the concourse, and then leave the station from the entrance and exit. The traditional air conditioning system in the public area of the station serves passengers, but there are many areas where passengers do not move or the probability of movement is small that are also included in the air conditioning area, resulting in a large waste of cooling capacity in the air conditioning system. At the same time, the traditional cold source system sets up a cold air system in the subway station, and sends cold air to the passenger areas of the concourse and platform through air conditioning vents. The blowing feeling in the vent area is strong, but the thermal comfort is not good. Utility Model Content

[0005] Based on the above problems, the present utility model provides a radiant cooling system for the public area of subway stations based on passenger flow distribution. The radiant cooling system is only turned on for cooling in the passenger movement area according to the passenger flow distribution. The radiant cooling system is also equipped with an automatic control system, which has the function of adjusting the cooling capacity, supplies cooling on demand, and makes full use of piston wind natural ventilation to supply fresh air, with remarkable energy-saving effects. It can avoid the influence of piston wind on the traditional cold source system, solve the problems of excessive overcooling and excessive fresh air supply in the large and high spaces of the public areas of the concourse and platform of the traditional cold source system. Moreover, the cooling system provided by the present utility model adopts radiant cooling terminals and cools through the way of radiant heat transfer, with better thermal comfort.

[0006] The solution of the present utility model is as follows:

[0007] A radiant cooling system for the public area of subway stations based on passenger flow distribution, comprising:

[0008] A refrigeration device, including a cooling tower, a cooling water pump and a chiller connected in sequence to form a circulation loop;

[0009] A water distributor, the inlet of the water distributor is connected to the chiller, the first outlet of the water distributor is connected to a fresh air air conditioning unit, and the second outlet of the water distributor is connected to a radiant terminal cooling device through a mixing water temperature regulating valve;

[0010] The radiant terminal cooling device includes an assembled radiant cooling ceiling panel connected to the main keels of the ceiling in the concourse public area and the platform public area of the subway station. The assembled radiant cooling ceiling panel includes a hollow ceiling keel frame. A pipe network header is installed inside the hollow ceiling keel frame. The pipe network header is connected to a capillary network. A heat preservation board is provided above the hollow ceiling keel frame.

[0011] A water collector, the first inlet of the water collector is connected to the return water pipeline of the fresh air air conditioner unit, and the second inlet of the water collector is simultaneously connected to the mixing water temperature regulating valve and the return water pipeline of the radiant terminal cooling device; the outlet of the water collector is connected to the chiller through a chilled water pump.

[0012] The water distributor and the water collector are connected through a differential pressure bypass valve.

[0013] Further, two or more cooling towers are provided, and the cooling towers are connected in parallel with each other.

[0014] Further, two or more chillers are provided, and the chillers are connected in parallel and then connected to the water distributor and the chilled water pump.

[0015] Further, two or more chilled water pumps are provided, and the chilled water pumps are connected in parallel and then connected to the water collector.

[0016] Further, two or more fresh air air conditioner units are provided, and the fresh air air conditioner units are connected in parallel with each other.

[0017] Further, a number of assembled radiant cooling ceiling panels are provided, and multiple assembled radiant cooling ceiling panels are connected in series into multiple groups and then connected in parallel.

[0018] Further, a regulating valve is installed on the inlet pipeline of each group of assembled radiant cooling ceiling panels.

[0019] Further, the capillary network is composed of a number of capillaries arranged in parallel with each other. The capillary network is arranged between the pipe network header and the return water header, and the return water header is connected to the return water pipeline of the radiant terminal cooling device.

[0020] Further, a number of temperature and humidity sensors and carbon dioxide concentration sensors are provided in the subway station, and the temperature and humidity sensors and carbon dioxide concentration sensors are connected to the controller in the control room.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1) The technical solution of the present utility model enables the use of radiant cooling terminals in the public area of the subway station. The radiant cooling system cools passengers through radiation, without being affected by the unorganized ventilation of the train piston wind on the air-conditioned area, solving the serious problem of cold air loss of the traditional cold air supply system affected by the piston wind, and the comfort of radiant cooling is high;

[0023] 2) The present utility model sets up an assembled radiant cooling ceiling panel based on the passenger flow distribution model, and can control the opening number of the water loop of the assembled radiant cooling ceiling panel and the water loop flow rate in the assembled radiant cooling ceiling panel according to the passenger flow distribution and passenger flow density, and only locally cools the passenger activity area, supplying cooling as needed, avoiding the problem of cold source waste caused by the whole-station cooling of the traditional cold source system in the whole area;

[0024] 3) The present utility model makes full use of the natural ventilation of the piston wind. When the passenger flow is small, fresh air is supplied to the public area of the station by the natural ventilation of the piston wind, and there is no need to turn on the mechanical fresh air system; when the passenger flow is large, the mechanical fresh air system is turned on to supply fresh air, and the fresh air inlet is set at the crowded place in the passenger flow distribution model area, supplying fresh air as needed. Description of the Drawings

[0025] Figure 1 It is the schematic diagram of the radiant cooling system in the public area of the subway station of Embodiment 1 of the present utility model;

[0026] Figure 2 It is the schematic diagram of the passenger flow distribution model in the public area of the standard subway station concourse level;

[0027] Figure 3 It is the schematic diagram of the passenger flow distribution model in the public area of the standard subway station platform level;

[0028] Figure 4 It is the structure diagram of the assembled radiant cooling ceiling panel of the present utility model;

[0029] Figure 5 It is the schematic diagram of the installation position of the assembled radiant cooling ceiling of Embodiment 2 of the present utility model.

[0030] In the figure: 1, cooling tower; 2, cooling water pump; 3, chiller; 4, chilled water pump; 5, water distributor; 6, water collector; 7, fresh air air-conditioning unit; 8, mixing water temperature regulating valve; 9, regulating valve; 10, assembled radiant cooling ceiling panel; 11, station entrance; 12, concourse public area; 13, ticket vending machine; 14, security inspection machine; 15, inbound automatic turnstile; 16, downward escalator; 17, barrier-free elevator; 18, outbound automatic turnstile; 19, upward escalator; 20, platform public area; 21, subway train; 22-1, passenger flow distribution model from entrance to security inspection machine; 22-2, passenger flow distribution model from entrance to ticket vending machine; 22-3, passenger flow distribution model from ticket vending machine to security inspection machine; 22-4, passenger flow distribution model from security inspection machine to inbound automatic turnstile; 22-5, passenger flow distribution model from inbound automatic turnstile to downward escalator; 22-6, passenger flow distribution model from inbound automatic turnstile to barrier-free elevator; 22-7, passenger flow distribution model from upward escalator to outbound automatic turnstile; 22-8, passenger flow distribution model from outbound automatic turnstile to entrance; 23, temperature and humidity sensor; 24, carbon dioxide concentration sensor; 25, passenger flow distribution model in platform waiting area; 26, passenger flow distribution model from waiting area to escalator; 27, capillary tube network; 28, pipe network header; 29, insulation board; 30, hollow ceiling keel framework; 31, main ceiling keel; 32, fresh air inlet; 33, fresh air duct. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] The present invention discloses a radiant cooling system for the public area of a subway station based on passenger flow distribution

[0033] In the description of the present invention, it should be noted that the terms "connected", "connected", and "communicated" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium. They can be the communication inside two components, or electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] Embodiment 1

[0035] A radiant cooling system for the public area of a subway station based on passenger flow distribution, as Figure 1 , includes:

[0036] Refrigeration device, including a cooling tower 1, a cooling water pump 2 and a chiller 3 that are connected in sequence to form a circulation loop; the cooling water of the cooling tower 1 is transported to the chiller 3 through the cooling water pump 2 for heat exchange and then returns to the cooling tower 1; the chiller 3 is arranged in the ventilation and air-conditioning machine room in the subway station and transports chilled water to the water distributor 5 on the circulation loop;

[0037] Among them, the chiller 3 includes a condenser and an evaporator. The condenser is connected to the cooling tower 1 and the cooling water pump 2, and the evaporator is connected to the chilled water pump 4 and the water distributor 5.

[0038] Water distributor 5, the inlet of the water distributor 5 is connected to the chiller 3, the first outlet of the water distributor 5 is connected to the fresh air air-conditioning unit 7, and the second outlet of the water distributor 5 is connected to the radiant terminal cooling device through the mixing water temperature regulating valve 8;

[0039] Radiant terminal cooling device, including an assembled radiant cooling ceiling panel 10 connected to the main ceiling keel 31 at the top of the concourse public area 12 and the top of the platform public area 20 of the subway station. The assembled radiant cooling ceiling panel 10 includes a hollow ceiling keel frame 30. A decorative panel is arranged at the bottom of the hollow ceiling keel frame 30. The decorative panel is connected to the main ceiling keel 31 through a connecting piece. A pipe network header 28 is installed inside the hollow ceiling keel frame 30. The pipe network header 28 is connected to the capillary network 27. Among them, the capillary network 27 and the pipe network header 28 are fixed to the decorative panel by means of welding, inlaying, bonding, fastening, etc. The decorative panel is made of metal, plastic, gypsum or other materials. A heat preservation board 29 is arranged above the hollow ceiling keel frame 30 to prevent cold energy from radiating to the upper space of the concourse or the platform public area 20, resulting in waste of cold energy. The radiant terminal cooling device mainly undertakes part or all of the sensible heat load in the subway station. Collector 6, the first inlet of the collector 6 is connected to the return water pipeline of the fresh air air-conditioning unit 7, and the second inlet of the collector 6 is simultaneously connected to the mixing water temperature regulating valve 8 and the return water pipeline of the radiant terminal cooling device; the outlet of the collector 6 is connected to the chiller 3 through the chilled water pump 4.

[0040] The water distributor 5 and the collector 6 are connected through a differential pressure bypass valve.

[0041] In this embodiment, there are two or more cooling towers 1, and the cooling towers 1 are connected in parallel.

[0042] In this embodiment, there are two or more chillers 3, and the chillers 3 are connected in parallel and then connected to the water distributor 5 and the chilled water pump 4.

[0043] In this embodiment, there are two or more chilled water pumps 4, and the chilled water pumps 4 are connected in parallel and then connected to the collector 6.

[0044] In this embodiment, there are two or more fresh air air-conditioning units 7, and the fresh air air-conditioning units 7 are connected in parallel with each other. The fresh air air-conditioning units 7 are used to bear the latent heat load, fresh air load and part of the sensible heat load in the subway station.

[0045] In this embodiment, there are several assembled radiant cooling ceiling panels 10. After multiple assembled radiant cooling ceiling panels 10 are connected in series to form multiple groups, they are connected in parallel.

[0046] In this embodiment, a regulating valve 9 is installed on the inlet pipeline of each group of assembled radiant cooling ceiling panels 10. According to the change of the passenger flow distribution model at different times, the corresponding regulating valve is opened, and the regulating valve in the area without passenger flow is closed. When the passenger flow is small and only one-way regulating valve needs to be opened, and the air temperature is still lower than the design temperature, the flow rate can also be adjusted through the regulating valve 9 to achieve the purpose of temperature control. The regulating valve 9 is preferably an electric two-way regulating valve.

[0047] In this embodiment, as Figure 4 , the capillary network 27 is composed of a number of capillaries arranged in parallel with each other. The capillary network 27 is arranged between the network header 28 and the return water header. The return water header is connected to the return water pipeline of the radiant terminal cooling device.

[0048] In this embodiment, it further includes a number of temperature and humidity sensors 23 and carbon dioxide concentration sensors 24 arranged in the subway station. The temperature and humidity sensors 23 and the carbon dioxide concentration sensors 24 are connected to the controller in the control room. Specifically, the opening quantity of the assembled radiant cooling ceiling panels 10 and the fresh air air-conditioning units 7 and the cooling water flow rate are controlled by the temperature information collected by the temperature and humidity sensors 23. The purpose of preventing condensation is achieved through the humidity information collected by the temperature and humidity sensors 23. The supply size of the fresh air volume is controlled by the carbon dioxide concentration information collected by the carbon dioxide concentration sensors 24.

[0049] Figure 2 It is a schematic diagram of the passenger flow distribution model in the public area of the standard subway station concourse layer provided by the present utility model. Figure 3 It is a schematic diagram of the passenger flow distribution model in the public area of the standard subway station platform layer provided by the present utility model.

[0050] The passenger flow distribution model is obtained by using passenger flow analysis software to get the inbound and outbound passenger flows in the public area and entrances and exits of each subway station according to the passenger flow prediction results, and combining the train operation rules, the number and location of the station entrances and exits, the number and location of the automatic ticket gates, and the walking time of passengers in various areas such as the concourse and platform. The present utility model only provides one embodiment, which only represents the model of one entrance and exit, and the other entrances and exits are similar.

[0051] In this embodiment, the passenger entry route is relatively fixed. After entering the public area 12 of the station hall from the station entrance 11, most passengers use mobile payment methods and directly pass through the security inspection machine 14, forming a passenger flow distribution model 22-1 from the entrance to the security inspection machine, and the passenger flow distribution model is spindle-shaped; another small part of the passengers first use the automatic ticket machine 13 to buy tickets, forming a passenger flow distribution model 22-2 from the entrance to the automatic ticket machine 13, and then pass through the security inspection machine from the automatic ticket machine 13, forming a passenger flow distribution model 22-3 from the automatic ticket machine 13 to the security inspection machine 14; after passing the security inspection machine 14, the passengers pass through the automatic gate 15 for entering the station, forming a passenger flow distribution model 22-3 from the security inspection machine 14 to the automatic gate 15 for entering the station Passenger flow distribution model 22-4; then most passengers go from the entry gate 15 to the down escalator 16 to get off the platform and take the train, forming a passenger flow distribution model 22-5 from the entry gate 15 to the down escalator 16, and a small number of passengers go from the entry gate 15 to the barrier-free elevator 17 to get off the platform and take the train, forming a passenger flow distribution model 22-6 from the entry gate 15 to the barrier-free elevator; after the outgoing passengers enter the station hall public area 12 from the platform public area 20 through the up escalator 19, they exit the station from the exit gate 18, forming a passenger flow distribution model 22-7 from the up escalator 19 to the exit gate 18 and a passenger flow distribution model 22-8 from the exit gate 18 to the entrance and exit. After the incoming passengers enter the platform public area 20 from the station hall public area 12, they enter the waiting area from the down escalator 16, forming a passenger flow distribution model 25 for the platform waiting area and a passenger flow distribution model 26 from the waiting area to the escalator.

[0052] According to the above model, the installation range of the prefabricated radiant cooling ceiling panel 10 of this embodiment covers the passenger flow distribution model formed by the long-term evening peak passenger flow forecast of the station, including the passenger flow distribution model 22-1 from the entrance and exit to the security check machine, the passenger flow distribution model 22-2 from the entrance and exit to the automatic ticket machine, the passenger flow distribution model 22-3 from the automatic ticket machine to the security check machine, the passenger flow distribution model 22-4 from the security check machine to the automatic gate at the station, the passenger flow distribution model 22-5 from the automatic gate at the station to the down escalator, the passenger flow distribution model 22-6 from the automatic gate at the station to the barrier-free elevator, the passenger flow distribution model 22-7 from the up escalator to the exit automatic gate, the passenger flow distribution model 22-8 from the exit automatic gate to the entrance and exit, the passenger flow distribution model 25 from the platform waiting area, and the passenger flow distribution model 26 from the waiting area to the escalator.

[0053] The cooling water of the cooling tower 1 is transported to the chiller 3 by the cooling water pump 2 after being cooled, and returns to the cooling tower 1 after heat exchange, and the cooling tower 1 cools again and is transported to the chiller 3 by the cooling water pump 2 to form a cooling water loop; the chilled water of the chiller 3 flows into the fresh air air-conditioning unit 7 and the radiant terminal cooling device through the water distributor 5 for cold quantity transportation. After the chilled water enters the fresh air air-conditioning unit 7 and the radiant terminal cooling device and undergoes heat exchange, it flows to the water collector 6, and then is transported to the chiller 3 by the chilled water pump 4 for cooling, and then enters the water distributor 5 for recycling again to form a chilled water loop.

[0054] Embodiment 2

[0055] Based on Embodiment 1, in order to ensure the ventilation in the station under the condition of large passenger flow, in this embodiment, a fresh air pipe 33 and a fresh air inlet 32 are arranged above the assembled radiant cooling ceiling panel 10 at the crowded passenger flow area, as Figure 5 discloses a schematic diagram of the installation position of the assembled radiant cooling ceiling. Figure 5 The installation of the connecting piece between the assembled radiant cooling ceiling and the ceiling main keel 31 is omitted. When the piston wind natural ventilation cannot meet the fresh air volume requirement of passengers when the passenger flow is large, at this time, the fresh air pipe is used and coordinated with the fresh air air-conditioning unit to supply fresh air.

[0056] The above specific embodiments have further elaborated on the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A radiant cooling system for public areas of subway stations based on passenger flow distribution, characterized in that: include: A refrigeration device, comprising a cooling tower (1), a cooling water pump (2) and a chiller (3) which are sequentially connected to form a circulation loop; A water distributor (5), wherein the inlet of the water distributor (5) is connected to the chiller (3), the first outlet of the water distributor (5) is connected to the fresh air air conditioning unit (7), and the second outlet of the water distributor (5) is connected to the radiation terminal cooling device via a water mixing temperature regulating valve (8); A radiation terminal cooling device comprises an assembled radiation cooling ceiling panel (10) connected to the main ceiling keels at the top of the station hall public area (12) and the platform public area (20) of the subway station, the assembled radiation cooling ceiling panel (10) comprising a hollow ceiling keel frame, a pipe network header (28) being installed in the hollow ceiling keel frame, the pipe network header (28) being connected to the capillary network (27), and an insulation board (29) being provided on the upper part of the hollow ceiling keel frame; A water collector (6), wherein a first inlet of the water collector (6) is connected to a return water pipeline of the fresh air air conditioning unit (7), and a second inlet of the water collector (6) is simultaneously connected to the mixing water temperature regulating valve (8) and the return water pipeline of the radiation terminal cooling device; an outlet of the water collector (6) is connected to the chiller (3) via a chilled water pump (4); The water distributor (5) and the water collector (6) are connected via a pressure difference bypass valve.

2. A radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 1, characterized in that: The cooling towers (1) are provided with two or more cooling towers (1), and the cooling towers (1) are connected in parallel.

3. The radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 1 is characterized in that: The water chillers (3) are provided with two or more, and the water chillers are connected in parallel and then connected to the water distributor (5) and the refrigeration water pump.

4. The radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 1 is characterized in that: The freezing water pumps (4) are provided with two or more, and the freezing water pumps (4) are connected in parallel and then connected to the water collector.

5. The radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 1 is characterized in that: The fresh air air conditioning units (7) are provided with two or more, and the fresh air air conditioning units (7) are connected in parallel with each other.

6. The radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 1, characterized in that: A plurality of the assembled radiant cooling ceiling panels (10) are provided, and a plurality of the assembled radiant cooling ceiling panels (10) are connected in series into a plurality of groups and then connected in parallel.

7. A radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 6, characterized in that: A regulating valve is installed on the inlet pipe of each group of assembled radiation cooling ceiling panels (10).

8. The radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 1 is characterized in that: The capillary network (27) is composed of a plurality of capillaries arranged in parallel with each other. The capillary network (27) is arranged between a pipe network header (28) and a return water header. The return water header is connected to the return water pipeline of the radiation terminal cooling device.

9. The radiant cooling system for public areas of subway stations based on passenger flow distribution according to claim 1, characterized in that: It also includes a plurality of temperature and humidity sensors (23) and a carbon dioxide concentration sensor (24) arranged in the subway station, wherein the temperature and humidity sensors (23) and the carbon dioxide concentration sensor (24) are connected to a controller in a control room.

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