Mounting structure of tunnel ventilation type evaporation and condensation radiator

Abstract

The utility model discloses an installation structure of a tunnel ventilation type evaporation and condensation radiator, condensation and heat dissipation are carried out on an air conditioning system through the mode that the evaporation and condensation radiator is installed in a tunnel ventilation pipe of an underground station, and integrated and efficient operation of the air conditioning system of the underground station is effectively achieved. The device comprises an evaporation and condensation radiator, a bypass air valve, a circulating water pump, a ventilation fan, an air filter and an evaporation and condensation control system, the evaporation and condensation radiator is arranged in a fresh air duct or an exhaust shaft, fresh air or exhaust air is used for dissipating heat of the evaporation and condensation radiator, operation parameters of the evaporation and condensation radiator are collected and analyzed through an evaporation and condensation control system, and the operation states of a circulating water pump and a ventilation fan are adjusted through the evaporation and condensation control system. Normal operation of the evaporation and condensation radiator is guaranteed, and therefore compact, stable and energy-saving operation of the air conditioning system of the underground station is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration machinery and relates to an evaporative condensing radiator, in particular to an installation structure of a tunnel ventilation type evaporative condensing radiator. Background Art

[0002] Currently, air conditioning systems in underground rail transit stations generally utilize a distributed cooling system. Traditional cooling systems employ ground-level cooling towers and underground chillers. However, the installation of ground-level cooling towers has long been a major challenge plaguing rail transit construction and operations. Underground stations are often located in densely populated areas, requiring large cooling tower footprints and creating significant nuisance. Without distributed cooling systems, the system incurs significant energy consumption and water losses along the pipes.

[0003] The exhaust ducting of air conditioning systems in underground rail transit stations typically utilizes exhaust fans, anechoic walls, and dampers, without considering the recovery of exhaust air cooling. In air conditioning systems using air-cooled condensers, exhaust air can only partially meet the cooling load requirements of the condensers. While exhaust cooling must be recovered, some air-cooled condensers must be located outdoors, thus facing the same challenges as installing a ground-level cooling tower. Utility Model Content

[0004] The purpose of the present utility model is to overcome the shortcomings of the existing technology and provide an installation structure for a tunnel ventilation evaporative condensation radiator, providing a solution that can realize condensation heat dissipation of the underground station air-conditioning system without setting up a condenser or cooling tower on the ground, and recover the exhaust cooling capacity, thereby realizing compact, energy-saving and efficient operation of the rail transit underground station air-conditioning system.

[0005] The purpose of this utility model is to achieve the following technical solution: A tunnel ventilation type evaporative condensing radiator installation structure, including a fresh air / exhaust system, an evaporative cold water circulation system and a control system, wherein the evaporative condensing radiator, a bypass air valve, a circulating water pump, a ventilation fan and an evaporative condensing control system are all arranged in the fresh air duct or exhaust shaft; wherein,

[0006] Fresh air / exhaust system: The ventilation fan is arranged in front of the evaporative condensing radiator, pressurizing the fresh air / exhaust air to pass through the evaporative condensing radiator, or when the evaporative condensing radiator is not working, the fresh air / exhaust air is discharged through the bypass damper; the bypass damper is used to bypass the exhaust air in the tunnel to ensure smooth exhaust in various situations;

[0007] Evaporative cold water circulation system: Lead water from the water tank below the evaporative condensing radiator to the inlet of the circulating water pump, and the outlet of the circulating water pump is connected to the spray main pipe of the evaporative condensing radiator;

[0008] Control system: The evaporative condensation control system is connected to the evaporative condensation radiator, the bypass ventilation valve, the circulating water pump, and the ventilation fan. The control cabinet of the evaporative condensation control system is installed on the evaporative condensation radiator or installed nearby in the tunnel.

[0009] Furthermore, the evaporative condensing radiator sprays cooling water onto the heat exchange tubes through the spray water pipes for heat exchange, and then the cooling water falls into the water tank below, and then enters the inlet of the circulating water pump for circulation.

[0010] Furthermore, an air filter is arranged in front of the ventilation fan to filter impurities in the fresh / exhaust air of the tunnel, thereby ensuring the normal operation of the evaporative condensation radiator.

[0011] Furthermore, the evaporative condensation control system is equipped with temperature and pressure sensors to collect the operating parameters of the evaporative condensation radiator and adjust the operating status of the circulating water pump; the evaporative condensation control system also receives the tunnel centralized control signal, and outputs the control signal to the ventilation fan according to the tunnel ventilation demand and the demand of the evaporative condensation radiator, so as to ensure the normal operation of the evaporative condensation radiator while ensuring the ventilation demand of the tunnel.

[0012] The beneficial effects of this utility model are as follows: By placing the evaporative condensing radiator in the fresh air duct or exhaust shaft, the existing fresh air or exhaust air is used for heat exchange in the condenser, replacing the original cooling tower or condenser arranged on the ground. This saves space and reduces the impact on the surrounding environment. At the same time, it recycles the cooling energy of the exhaust air to achieve energy conservation. The utility model adopts an evaporative condensing control system to ensure the stable and efficient operation of the underground station air conditioning system and meet the fresh air and exhaust air volume requirements of underground station tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Explanation of the reference numerals: evaporative condensing radiator 1, bypass ventilation valve 2, circulating water pump 3, ventilation fan 4, air filter 5, evaporative condensing control system 6, water tank 7, spray water pipe 8, heat exchange pipe 9. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0016] like Figure 1As shown, a tunnel ventilation evaporative condensation radiator installation structure primarily includes an evaporative condensation radiator 1, a bypass vent valve 2, a circulating water pump 3, a ventilation fan 4, and an evaporative condensation control system 6. The evaporative condensation radiator 1, bypass vent valve 2, circulating water pump 3, ventilation fan 4, and evaporative condensation control system 6 are all arranged in a fresh air duct or exhaust shaft. The evaporative condensation control system 6 is connected to the evaporative condensation radiator 1, bypass vent valve 2, circulating water pump 3, and ventilation fan 4. The control cabinet of the evaporative condensation control system 6 is mounted on the evaporative condensation radiator 1 or nearby in the tunnel. The control system regulates the operating status of the circulating water pump and ventilation fan, ensuring stable and efficient operation of the evaporative condensation radiator. This, while ensuring sufficient fresh air or exhaust ventilation, allows for compact, energy-efficient, and efficient operation of the air conditioning system in underground rail transit stations.

[0017] The evaporative condensation radiator 1 performs condensation and heat dissipation through circulating cooling water and fresh / exhaust air in the tunnel; the water tank 7 below the evaporative condensation radiator 1 is connected to the inlet of the circulating water pump 3, and the cooling water in the water tank 7 is pressurized and transported to the spray main pipe above by the circulating water pump 3, and the cooling water is sprayed onto the heat exchange tube 9 through the spray water pipe 8 for heat exchange and is cooled by the air. Then the cooling water falls into the water tank 7 below, and then enters the inlet of the circulating water pump 3 for circulation.

[0018] An air filter 5 and a ventilation fan 4 are positioned in front of the windward side of the evaporative condensation radiator 1. The air filter 5 filters impurities from the tunnel's incoming and outgoing air, ensuring the proper operation of the evaporative condensation radiator. In this embodiment, two ventilation fans 4 are provided, one above the other, and are simultaneously switched on and off to form a fan wall. After being filtered and purified by the air filter 5, the tunnel's incoming and outgoing air is pressurized by the ventilation fan 4 and delivered to the evaporative condensation radiator 1 for heat exchange before exiting the tunnel.

[0019] A bypass air valve 2 is arranged above the evaporative condensation radiator 1. When the evaporative condensation radiator 1 is not working, or when ventilation is required in an emergency, the bypass air valve 2 is opened, and the fresh / exhaust air in the tunnel can be discharged smoothly without being affected by the operating status of the evaporative condensation radiator 1.

[0020] The evaporative condensation control system 6 receives operating status information from the underground station air conditioning system and, in conjunction with the operating status of the evaporative condensation radiator 1, adjusts the operating parameters of the circulating water pump 3 and the ventilation fan 4, thereby regulating the operating status of the evaporative condensation radiator 1 and enabling the underground station air conditioning system to operate stably and efficiently. The evaporative condensation control system 6 can adjust the operating status of the ventilation fan 4 and the opening and closing of the bypass air valve 2 based on signals from the underground station ventilation system's centralized control to meet the ventilation volume requirements within the tunnel. The evaporative condensation radiator 1 installed in the new / exhaust tunnel, through the evaporative condensation control system 6, meets the requirements for stable and efficient operation of the underground station air conditioning system while ensuring tunnel ventilation safety. It also achieves the goal of recycling exhaust cooling energy and ensuring a compact and environmentally friendly layout of the underground station air conditioning system.

[0021] It is understandable that for those skilled in the art, any equivalent replacement or change of the technical solution and the concept of the utility model should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A mounting structure for a tunnel ventilation evaporative condensing radiator, characterized by: It includes a fresh air / exhaust system, an evaporative cold water circulation system and a control system, wherein an evaporative condensation radiator (1), a bypass ventilation valve (2), a circulating water pump (3), a ventilation fan (4) and an evaporative condensation control system (6) are all arranged in a fresh air duct or an exhaust shaft; wherein, Fresh air / exhaust air system: the ventilation fan (4) is arranged in front of the evaporative condensing radiator (1), pressurizing the fresh air / exhaust air to pass through the evaporative condensing radiator (1), or when the evaporative condensing radiator (1) is not working, the fresh air / exhaust air is discharged through the bypass vent valve (2); Evaporative cold water circulation system: a water tank (7) below the evaporative condensing radiator (1) is led to the inlet of the circulating water pump (3), and the outlet of the circulating water pump (3) is connected to the spray main pipe of the evaporative condensing radiator (1); Control system: The evaporative condensation control system (6) is connected to the evaporative condensation radiator (1), the bypass ventilation valve (2), the circulating water pump (3), and the ventilation fan (4). The control cabinet of the evaporative condensation control system (6) is installed on the evaporative condensation radiator (1) or installed nearby in the tunnel.

2. The installation structure of the tunnel ventilation evaporative condensation radiator according to claim 1, characterized in that: The evaporative condensation radiator (1) sprays cooling water onto the heat exchange tube (9) through the spray water pipe (8) for heat exchange, and then the cooling water falls into the water tank (7) below, and then enters the inlet of the circulating water pump (3) for circulation.

3. The installation structure of the tunnel ventilation evaporative condensation radiator according to claim 1, characterized in that: An air filter (5) is arranged in front of the ventilation fan (4).

4. The installation structure of the tunnel ventilation evaporative condensation radiator according to claim 1, characterized in that: The evaporation and condensation control system (6) is equipped with temperature and pressure sensors to collect the operating parameters of the evaporation and condensation radiator (1) and adjust the operating state of the circulating water pump (3); the evaporation and condensation control system (6) also receives the tunnel centralized control signal and outputs a control signal to the ventilation fan (4) based on the tunnel ventilation demand and the demand of the evaporation and condensation radiator (1), so as to ensure the normal operation of the evaporation and condensation radiator (1) while ensuring the tunnel ventilation demand.

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