A piston wind energy-saving cold and heat supply system for a subway station house

Abstract

The present application discloses a piston wind energy-saving cold and heat supply system for a subway station building, belonging to the field of subway station building ventilation, and solves the problems of high ventilation cost and high environmental pollution in the prior art in subway stations. The piston wind energy-saving cold and heat supply system for a subway station building includes a piston wind inlet pipe, a piston wind filtering mechanism and a piston wind outlet mechanism. The piston wind outlet mechanism includes a piston wind outlet pipe. The piston wind inlet pipe is arranged in the subway tunnel. The piston wind filtering mechanism is fixed in the piston wind inlet pipe and close to the air inlet of the piston wind inlet pipe, and can filter the piston wind entering the piston wind inlet pipe. The air inlet of the piston wind outlet pipe is communicated with the air outlet of the piston wind inlet pipe, and the air outlet of the piston wind outlet pipe extends into the subway station building to introduce the filtered piston wind into the subway station building. The present application realizes the ventilation in the subway station building by using the piston wind, so that the ventilation cost in the subway station building is low and the environmental pollution is low.

Description

Technical Field

[0001] This application relates to the technical field of ventilation for subway station buildings, and in particular, to a piston wind energy-saving cold and heat supply system for subway station buildings. Background Art

[0002] With the rapid development of science and technology and the economy, the continuous advancement of the urban process, and the continuous improvement of people's living standards, the urban transportation system has become increasingly developed. From aviation to subway tracks, there are more and more choices for people to travel. Due to the advantages of fast speed, short time, low fare, and convenience of the subway, more and more people choose to take the subway to travel, resulting in a large flow of people in the subway station, and thus the air quality in the subway station is relatively poor.

[0003] Currently, the ventilation in the subway station is achieved through air-conditioning equipment. However, the power consumption of the air-conditioning equipment is relatively large, resulting in a high cost of ventilation in the subway station. At the same time, the large power consumption of the air-conditioning equipment leads to excessive consumption of fuels such as coal, and the carbon emissions during the combustion of fuels such as coal are relatively high, resulting in a relatively high environmental pollution. Summary of the Invention

[0004] The embodiments of this application solve the problems of high ventilation cost and high environmental pollution in the existing subway station by providing a piston wind energy-saving cold and heat supply system for subway station buildings.

[0005] The embodiments of the present invention provide a piston wind energy-saving cold and heat supply system for subway station buildings. The piston wind energy-saving cold and heat supply system for subway station buildings includes a piston wind inlet pipe, a piston wind filtering mechanism, and a piston wind outlet mechanism; the piston wind outlet mechanism includes a piston wind outlet pipe; the piston wind inlet pipe is arranged in the subway tunnel; the piston wind filtering mechanism is fixed in the piston wind inlet pipe and close to the air inlet of the piston wind inlet pipe, and can filter the piston wind entering the piston wind inlet pipe; the air inlet of the piston wind outlet pipe is communicated with the air outlet of the piston wind inlet pipe, and the air outlet of the piston wind outlet pipe extends into the subway station building to introduce the filtered piston wind into the subway station building.

[0006] In a possible implementation, the piston wind filtering mechanism includes a plurality of cylindrical filter bags, a photocatalyst, an LED lamp, and an adsorption structure; the plurality of cylindrical filter bags are fixed in the piston wind inlet pipe and close to the air inlet of the piston wind inlet pipe, and can filter the piston wind entering the piston wind inlet pipe to obtain a primary filtered gas; the LED lamp is fixed at the end of the plurality of cylindrical filter bags; the photocatalyst is arranged on the inner wall of the cylindrical filter bag and can decompose the organic pollutants in the primary filtered gas to obtain a secondary filtered gas; the adsorption structure is arranged between the air outlet of the piston wind inlet pipe and the air inlet of the piston wind outlet pipe, and the adsorption structure can adsorb the impurities in the secondary filtered gas to obtain a tertiary filtered gas.

[0007] In a possible implementation, the piston wind filtering mechanism further includes a dust discharge valve and a dust collector; the dust collector is arranged below the cylindrical filter bag and is used for collecting the dust on the surface of the cylindrical filter bag; the dust discharge valve is fixed at the dust inlet of the dust collector; the dust discharge valve is electrically connected to the control mechanism.

[0008] In a possible implementation, the piston wind energy-saving cold and heat supply system for the subway station house further includes a piston wind energy conversion mechanism; the piston wind energy conversion mechanism includes a housing, a coil, a plurality of metal honeycomb foams, a first metal foam phase change capsule, a first wind speed sensor, a phase change layer baffle, a plurality of coil baffles, a plurality of motors, and a first valve; the coil includes a water inlet pipe, a water outlet pipe, and a first coil; the air inlet of the housing is communicated with the air outlet of the piston wind inlet pipe, and the air outlet of the housing is communicated with the air inlet of the piston wind outlet pipe; the first valve is arranged between the air outlet of the piston wind inlet pipe and the air inlet of the housing; the plurality of metal honeycomb foams are fixedly arranged in the housing at intervals, and the plurality of metal honeycomb foams are all parallel to the flow direction of the piston wind; the first metal foam phase change capsule is filled in the honeycomb cavity of the metal honeycomb foam; the first wind speed sensor is fixed in the metal honeycomb foam; a first coil is arranged between every two adjacent metal honeycomb foams; the water inlets of the plurality of first coils are all communicated with the water inlet pipe, and the water outlets of the plurality of coils are all communicated with the water outlet pipe; the plurality of motors are fixed at the air inlet of the housing and correspond to the positions of the metal honeycomb foams one by one; a phase change layer baffle is fixed on the rotating shaft of each motor, and the motor drives the phase change layer baffle to rotate, so as to control the intake of the piston wind in the metal honeycomb foam; the plurality of coil baffles are fixed at the air inlet of the housing and are located between every two adjacent metal honeycomb foams; the first wind speed sensor, the first valve, and the motors are all electrically connected to the control mechanism.

[0009] In a possible implementation, the piston wind energy-saving cold and heat supply system for the subway station building further includes a fire safety mechanism; the fire safety mechanism includes a fire extinguishing gas storage tank, a fire extinguishing valve, and a stop valve; the fire extinguishing gas storage tank is arranged in the subway station, and the air outlet of the fire extinguishing gas storage tank is communicated with the piston wind output pipe; the fire extinguishing valve is arranged between the air outlet of the fire extinguishing gas storage tank and the piston wind output pipe; the stop valve is arranged between the air outlet of the fire extinguishing gas storage tank and the air outlet of the housing; both the fire extinguishing valve and the stop valve are electrically connected to the control mechanism.

[0010] In a possible implementation, the piston wind energy-saving cold and heat supply system for the subway station building further includes a power generation mechanism; the power generation mechanism includes a plurality of support frames, wind wheels, a gearbox, a speed regulating mechanism, a wind turbine generator, and an inverter; one end of each of the plurality of support frames is fixed in the tunnel, and the other end is respectively connected to one of the wind wheels; the gearbox, the speed regulating mechanism, the wind turbine generator, and the inverter are all arranged in the subway tunnel; the gearbox, the speed regulating mechanism, and the wind turbine generator are all electrically connected to the wind wheels; the wind turbine generator is electrically connected to the inverter.

[0011] In a possible implementation, the piston wind energy-saving cold and heat supply system for the subway station building further includes a tunnel energy storage mechanism; the tunnel energy storage mechanism includes a second metal foam phase change capsule, a capillary network, and a heat preservation water tank; the second metal foam phase change capsule is fixed on the support frame and is located at the connection between the support frame and the wind wheel; the capillary network is fixed on the side of the second metal foam phase change capsule away from the support frame, and the capillary network completely covers the second metal foam phase change capsule; the water inlet of the capillary network is communicated with a water source, and the water outlet of the capillary network is communicated with the water inlet of the heat preservation water tank.

[0012] In a possible implementation, the piston wind output mechanism further includes a ventilation fan; the ventilation fan is fixed in the piston wind output pipe.

[0013] In a possible implementation, the piston wind energy-saving cold and heat supply system for the subway station building further includes a tunnel-station building air isolation mechanism; the tunnel-station building air isolation mechanism includes a first ventilation opening, a second valve, a fan, and a limit switch; the first ventilation opening is arranged above the door opening and closing frame of the subway train, and the first ventilation opening is communicated with the air outlet of the piston wind output pipe; the fan and the second valve are located between the air outlet of the piston wind output pipe and the first ventilation opening; the limit switch is fixed above the subway screen door, and the limit switch is electrically connected to the control mechanism to transmit the opening and closing state of the subway screen door to the control mechanism; both the fan and the second valve are electrically connected to the control mechanism.

[0014] In a possible implementation, the piston wind energy-saving cold and heat supply system for a subway station building further includes a tunnel and a plurality of porous baffle plates; the tunnel is arranged in the tunnel between two subway station buildings; the plurality of porous baffle plates are arranged at intervals in the tunnel.

[0015] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0016] The embodiments of the present invention provide a piston wind energy-saving cold and heat supply system for a subway station building. The piston wind energy-saving cold and heat supply system for a subway station building includes a piston wind inlet pipe, a piston wind filtering mechanism, and a piston wind outlet mechanism. The piston wind outlet mechanism includes a piston wind outlet pipe. The piston wind inlet pipe is arranged in the subway tunnel. The piston wind filtering mechanism is fixed in the piston wind inlet pipe and close to the air inlet of the piston wind inlet pipe, and can filter the piston wind entering the piston wind inlet pipe. The air inlet of the piston wind outlet pipe is communicated with the air outlet of the piston wind inlet pipe, and the air outlet of the piston wind outlet pipe extends into the subway station building to introduce the filtered piston wind into the subway station building. In practical applications, the piston wind generated during the operation of the subway is introduced into the piston wind filtering mechanism through the piston wind inlet pipe for filtering, and the piston wind outlet mechanism introduces the filtered piston wind into the subway station building to improve the air quality in the subway station building. This application realizes ventilation in the subway station building by using piston wind, so that the ventilation cost in the subway station building is low and the environmental pollution is low. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description in the embodiments of the present invention. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the piston wind energy-saving cold and heat supply system for a subway station building provided by the embodiments of the present application;

[0019] Figure 2 For Figure 1 the enlarged view at position A in

[0020] Figure 3 For Figure 1 the enlarged view at position B in

[0021] Figure 4 For Figure 3 the enlarged view at position C in

[0022] Figure 5 For Figure 3 the left view of

[0023] Figure 6 For Figure 1 the enlarged view at position D in

[0024] Figure 7 This is a schematic structural diagram of the tunnel energy storage mechanism provided by the embodiment of the present application.

[0025] Icons: 1 - piston air inlet pipe; 2 - piston air filtering mechanism; 21 - cylindrical filter bag; 22 - photocatalyst; 23 - LED lamp; 24 - adsorption structure; 25 - ash discharge valve; 26 - dust collector; 3 - piston air output mechanism; 31 - piston air output pipe; 32 - ventilation fan; 33 - muffler; 4 - control mechanism; 5 - piston air energy conversion mechanism; 51 - housing; 52 - coil pipe; 521 - water inlet pipe; 522 - water outlet pipe; 523 - first coil pipe; 53 - metal honeycomb foam; 54 - first metal foam phase change capsule; 55 - first wind speed sensor; 56 - phase change layer baffle; 57 - coil pipe baffle; 58 - motor; 59 - first valve; 510 - heat insulation layer; 511 - fin; 512 - aramid honeycomb paper; 6 - fire safety mechanism; 61 - fire extinguishing gas storage; 62 - fire extinguishing valve; 63 - stop valve; 7 - power generation mechanism; 71 - support frame; 72 - wind wheel; 73 - gearbox; 74 - speed regulating mechanism; 75 - wind turbine generator; 76 - inverter; 77 - tunnel lighting lamp; 8 - tunnel energy storage mechanism; 81 - second metal foam phase change capsule; 82 - capillary network; 83 - insulation water tank; 9 - tunnel station house air isolation mechanism; 91 - first ventilation opening; 92 - second valve; 93 - fan; 94 - limit switch; 10 - tunnel; 11 - porous baffle. Detailed implementation manners

[0026] 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 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.

[0027] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0028] As Figures 1 to 7 shown, the embodiments of the present invention provide a piston wind energy-saving cold and heat supply system for a subway station building. The piston wind energy-saving cold and heat supply system for the subway station building includes a piston wind inlet pipe 1, a piston wind filtering mechanism 2, and a piston wind outlet mechanism 3.

[0029] Continuing to refer to Figure 1 shown, the piston wind outlet mechanism 3 includes a piston wind outlet pipe 31. The piston wind inlet pipe 1 is arranged in the subway tunnel. Specifically, the piston wind inlet pipe 1 is fixed at the position of the shielding door in front of the head of the subway train when it stops. The piston wind generated during the operation of the subway can enter the piston wind inlet pipe 1 from the air inlet of the piston wind inlet pipe 1.

[0030] Specifically, the piston wind filtering mechanism 2 is fixed in the piston wind inlet pipe 1 and is close to the air inlet of the piston wind inlet pipe 1, and can filter the piston wind entering the piston wind inlet pipe 1. The air inlet of the piston wind outlet pipe 31 is communicated with the air outlet of the piston wind inlet pipe 1, and the air outlet of the piston wind outlet pipe 31 extends into the subway station building to introduce the filtered piston wind into the subway station building. In practical applications, the piston wind filtering mechanism 2 can filter the piston wind, ensuring the cleanliness of the piston wind, thereby ensuring the cleanliness of the air in the subway station building and further improving the air quality in the subway station building.

[0031] An embodiment of the present invention provides a piston wind energy-saving cold and heat supply system for a subway station building. The piston wind energy-saving cold and heat supply system for the subway station building includes a piston wind inlet pipe 1, a piston wind filtering mechanism 2, and a piston wind outlet mechanism 3. The piston wind outlet mechanism 3 includes a piston wind outlet pipe 31. The piston wind inlet pipe 1 is arranged in the subway tunnel. The piston wind filtering mechanism 2 is fixed in the piston wind inlet pipe 1 and close to the air inlet of the piston wind inlet pipe 1, and can filter the piston wind entering the piston wind inlet pipe 1. The air inlet of the piston wind outlet pipe 31 is communicated with the air outlet of the piston wind inlet pipe 1, and the air outlet of the piston wind outlet pipe 31 extends into the subway station building to introduce the filtered piston wind into the subway station building. In practical applications, the piston wind generated during the operation of the subway is introduced into the piston wind filtering mechanism 2 through the piston wind inlet pipe 1 for filtering, and the piston wind outlet mechanism 3 introduces the filtered piston wind into the subway station building to improve the air quality in the subway station building. In this application, ventilation in the subway station building is achieved by utilizing piston wind, resulting in low ventilation costs and low environmental pollution in the subway station building.

[0032] Continue to refer to Figure 2 As shown, the piston wind filtering mechanism 2 includes a plurality of cylindrical filter bags 21, a photocatalyst 22, an LED lamp 23, and an adsorption structure 24. The plurality of cylindrical filter bags 21 are fixed in the piston wind inlet pipe 1 and close to the air inlet of the piston wind inlet pipe 1, and can filter the piston wind entering the piston wind inlet pipe 1 to obtain a primary filtered gas. Specifically, the cylindrical filter bag 21 includes a filter bag and a cylindrical support. The cylindrical support is fixed in the piston wind inlet pipe 1, and the filter bag is arranged on the surface of the cylindrical support. The cylindrical support can support the filter bag to prevent the filter bag from deforming due to excessive piston wind. Further, the filter bag is made of fiber filter material, and the cylindrical filter bag 21 can filter dust, PM2.5, and PM10 in the piston wind, thus ensuring the cleanliness of the piston wind.

[0033] Specifically, the LED lamp 23 is fixed at the end of the plurality of cylindrical filter bags 21. The photocatalyst 22 is arranged on the inner wall of the cylindrical filter bag 21 and can decompose organic pollutants in the primary filtered gas to obtain a secondary filtered gas. In practical applications, the photocatalyst 22 is evenly sprayed on the inner wall of the cylindrical filter bag 21. Under the action of the LED lamp 23, the photocatalyst 22 can oxidize and decompose various organic compounds and some inorganic substances in the piston wind, destroy the cell membranes of bacteria and the proteins of viruses to kill bacteria, and decompose organic pollutants into pollution-free water and carbon dioxide. Further, the photocatalyst 22 includes titanium dioxide.

[0034] Continue to refer to Figure 1As shown, the adsorption structure 24 is arranged between the air outlet of the piston air inlet pipe 1 and the air inlet of the piston air outlet pipe 31. The adsorption structure 24 can adsorb impurities in the secondary filtered gas to obtain the tertiary filtered gas. In practical applications, the adsorption structure 24 can adsorb carbon dioxide and water vapor in the secondary filtered gas, preventing mold from growing in the connecting pipe between the air outlet of the piston air inlet pipe 1 and the air inlet of the piston air outlet pipe 31. Further, the adsorption structure 24 is arranged on a slide rail, and the slide rail is arranged on the connecting pipe between the air outlet of the piston air inlet pipe 1 and the air inlet of the piston air outlet pipe 31. The adsorption structure 24 can slide on the slide rail, so that maintenance personnel can regularly remove the adsorption structure 24 from the slide rail for replacement or cleaning to ensure the cleanliness of the piston air introduced into the subway station hall. Specifically, the adsorption structure 24 includes porous activated carbon, and the pore diameter of the porous activated carbon is in the range of 0.5 nm to 1.7 nm.

[0035] Continue to refer to Figure 2 As shown, the piston air filtering mechanism 2 further includes an ash discharge valve 25 and a dust collector 26. The dust collector 26 is arranged below the cylindrical filter bag 21 for collecting the dust on the surface of the cylindrical filter bag 21. The ash discharge valve 25 is fixed at the dust inlet of the dust collector 26. The ash discharge valve 25 is electrically connected to the control mechanism 4. In practical applications, after the cylindrical filter bag 21 is used for a period of time, dust will adhere to its surface, which not only affects the filtering effect of the piston air but also causes the speed of the piston air entering the piston air filtering mechanism 2 to slow down. Therefore, the ash discharge valve 25 and the dust collector 26 are provided. The control mechanism 4 controls the ash discharge valve 25 to open at regular intervals, so as to control the dust collector 26 to collect the dust on the surface of the cylindrical filter bag 21, making the surface of the cylindrical filter bag 21 clean.

[0036] Continue to refer to Figure 5 As shown, the piston air energy-saving cold and heat supply system for the subway station hall further includes a piston air energy conversion mechanism 5. The piston air energy conversion mechanism 5 includes a housing 51, a coil 52, a plurality of metal honeycomb foams 53, a first metal foam phase change capsule 54, a first wind speed sensor 55, a phase change layer baffle 56, a plurality of coil baffles 57, a plurality of motors 58, and a first valve 59.

[0037] In practical applications, the coil 52 includes a water inlet pipe 521, a water outlet pipe 522, and a first coil 523. Specifically, the water inlet pipe 521 is communicated with a water source, and the water outlet pipe 522 leads into the subway station hall.

[0038] Continue to refer to Figure 1As shown, the air inlet of the housing 51 is communicated with the air outlet of the piston air inlet pipe 1, and the air outlet of the housing 51 is communicated with the air inlet of the piston air outlet pipe 31. A first valve 59 is provided between the air outlet of the piston air inlet pipe 1 and the air inlet of the housing 51. A plurality of metal honeycomb foams 53 are fixedly spaced in the housing 51, and the plurality of metal honeycomb foams 53 are all parallel to the flow direction of the piston air. A first metal foam phase change capsule 54 is filled in the honeycomb cavity of the metal honeycomb foam 53. A first wind speed sensor 55 is fixed in the metal honeycomb foam 53. A first coil 523 is provided between every two adjacent metal honeycomb foams 53. The water inlets of the plurality of first coils 523 are all communicated with the water inlet pipe 521, and the water outlets of the plurality of first coils 523 are all communicated with the water outlet pipe 522. A plurality of motors 58 are fixed at the air inlet of the housing 51 and correspond to the positions of the metal honeycomb foams 53 one by one. A phase change layer baffle 56 is fixed on the rotating shaft of each motor 58, and the motor 58 drives the phase change layer baffle 56 to rotate, so as to control the intake of the piston air in the metal honeycomb foam 53. A plurality of coil baffles 57 are fixed at the air inlet of the housing 51 and are located between every two adjacent metal honeycomb foams 53. The first wind speed sensor 55, the first valve 59 and the motor 58 are all electrically connected to the control mechanism 4. In practical applications, the first wind speed sensor 55 can detect the wind speed of the piston air entering the metal honeycomb foam 53 and transmit the wind speed information to the control mechanism 4. When the wind speed of the piston air entering the metal honeycomb foam 53 is less than 4 m / s, the control mechanism 4 controls the motor 58 to rotate to drive the phase change layer baffle 56 to close. After the phase change layer baffle 56 is closed, the first metal foam phase change capsule 54 undergoes a phase change and transfers the latent heat of phase change to the water in the coil 52, and then the water in the coil 52 is provided for use in the air-conditioning ventilation machine room of the subway station house or for reducing the temperature of the equipment, improving the operating efficiency and energy utilization rate of the subway air-conditioning system, and having energy conservation and environmental protection properties.

[0039] Specifically, the phase change temperature of the first metal foam phase change capsule 54 is 26 °C or 18 °C. The first metal foam phase change capsule 54 includes copper foam or phase change paraffin. In the summer cooling season, copper foam or phase change paraffin with a phase change temperature of 26 °C is filled in the honeycomb cavity of the metal honeycomb foam 53; in the winter heating season, copper foam or phase change paraffin with a phase change temperature of 18 °C is filled in the honeycomb cavity of the metal honeycomb foam 53. Through the latent heat of phase change of the copper foam or phase change paraffin, the energy in the piston air is stored and transferred to the water in the coil 52 in the non-transition season, and then the water in the coil 52 is provided for use in the air-conditioning ventilation machine room of the subway station house or for reducing the temperature of the equipment, thereby improving the operating efficiency and energy utilization rate of the subway air-conditioning system and having high energy conservation and environmental protection properties.

[0040] Furthermore, a heat insulation layer 510 is fixedly connected to the inner surface of the housing 51. The heat insulation layer 510 can keep the inner cavity of the housing 51 warm, preventing heat loss from the inner cavity of the housing 51 and affecting the heat exchange effect.

[0041] As Figure 5 shown, fins 511 are provided on the outer surface of the coiled pipe 52. The fins 511 can accelerate the heat exchange rate between the water in the coiled pipe 52 and the first metal foam phase change capsule 54.

[0042] As Figure 4 shown, aramid honeycomb paper 512 is provided on the metal honeycomb foam 53, and the aramid honeycomb paper 512 is located at the air inlet of the metal honeycomb foam 53. Setting the aramid honeycomb paper 512 can protect the metal honeycomb foam 53 and prevent it from being damaged when the piston wind is too strong.

[0043] In practical applications, the piston wind energy-saving cold and heat supply system for the subway station house further includes a fire safety mechanism 6. The fire safety mechanism 6 includes a fire extinguishing gas storage tank 61, a fire extinguishing valve 62 and a stop valve 63. The fire extinguishing gas storage tank 61 is arranged in the subway station, and the air outlet of the fire extinguishing gas storage tank 61 is communicated with the piston wind output pipe 31. A fire extinguishing valve 62 is arranged between the air outlet of the fire extinguishing gas storage tank 61 and the piston wind output pipe 31. A stop valve 63 is arranged between the air outlet of the fire extinguishing gas storage tank 61 and the air outlet of the housing 51. Both the fire extinguishing valve 62 and the stop valve 63 are electrically connected to the control mechanism 4. Specifically, when a fire occurs in the subway station house, the smoke alarm arranged in the subway station house will send an alarm signal to the control mechanism 4. When the control mechanism 4 receives the alarm signal, the control mechanism 4 closes the stop valve 63 to prevent the carbon dioxide stored in the fire extinguishing gas storage tank 61 from flowing back into the housing 51, and also prevent the piston wind from continuing to be input into the subway station house, resulting in the fire getting out of control. At the same time, the control mechanism 4 opens the fire extinguishing valve 62, so that the carbon dioxide stored in the fire extinguishing gas storage tank 61 is introduced into the subway station through the air outlet of the piston wind output pipe 31 for fire extinguishing, accelerating the fire extinguishing speed, reducing the losses in the subway station house, providing escape time for the personnel in the subway station house, and improving the safety in the subway station house.

[0044] Continue to refer to Figure 1As shown in the figure, the piston wind energy-saving cold and heat supply system for the subway station house further includes a power generation mechanism 7. The power generation mechanism 7 includes a plurality of support frames 71, wind wheels 72, a gearbox 73, a speed regulation mechanism 74, a wind turbine generator 75, and an inverter 76. One end of each of the plurality of support frames 71 is fixed in the tunnel, and the other ends are respectively connected to a wind wheel 72. The gearbox 73, the speed regulation mechanism 74, the wind turbine generator 75, and the inverter 76 are all arranged in the subway tunnel. The gearbox 73, the speed regulation mechanism 74, and the wind turbine generator 75 are all electrically connected to the wind wheel 72. The wind turbine generator 75 and the inverter 76 are electrically connected. In practical applications, when the piston wind blows towards the wind wheel 72, the wind wheel 72 rotates to drive the wind turbine generator 75 to generate electricity. Since the rotational speed of the wind wheel 72 is relatively low, and the magnitude and direction of the wind force are unstable, before the wind wheel 72 drives the wind turbine generator 75 to generate electricity, a gearbox 73 that increases the rotational speed of the wind wheel 72 to the rated rotational speed of the wind turbine generator 75 needs to be set up, and then a speed regulation mechanism 74 is set up to keep the rotational speed of the wind wheel 72 stable. When the wind turbine generator 75 generates current, the inverter 76 converts the DC electrical energy generated by the wind turbine generator 75 into AC electricity for convenient later use. In practical applications, the inverter 76 is electrically connected to the tunnel lighting lamp 77 arranged in the tunnel, so as to supply the current generated by the wind turbine generator 75 to the tunnel lighting lamp 77 for use, thereby reducing the tunnel operation cost. Specifically, the support frame 71 includes a box-type truss.

[0045] Continue to refer to Figure 7 As shown in the figure, the piston wind energy-saving cold and heat supply system for the subway station house further includes a tunnel energy storage mechanism 8. The tunnel energy storage mechanism 8 includes a second metal foam phase change capsule 81, a capillary network 82, and a heat preservation water tank 83. The second metal foam phase change capsule 81 is fixed on the support frame 71 and is located at the connection between the support frame 71 and the wind wheel 72. Since the wind wheel 72 will generate a certain amount of heat during operation, by fixing the second metal foam phase change capsule 81 at the connection between the support frame 71 and the wind wheel 72, the second metal foam phase change capsule 81 can absorb the heat generated during the operation of the wind wheel 72, which not only improves the energy utilization rate but also plays a role in cooling the wind wheel 72, thereby improving the working efficiency of the wind wheel 72 and extending the service life of the wind wheel 72. Specifically, the second metal foam phase change capsule 81 extends to the inner surface of the outer shell of the wind wheel 72, and extending the second metal foam phase change capsule 81 to the inner surface of the outer shell of the wind wheel 72 enables the second metal foam phase change capsule 81 to absorb more heat.

[0046] In practical applications, a capillary network 82 is fixed to the side of the second metal foam phase change capsule 81 away from the support frame 71, and the capillary network 82 completely covers the second metal foam phase change capsule 81. The water inlet of the capillary network 82 is communicated with a water source, and the water outlet of the capillary network 82 is communicated with the water inlet of the heat preservation water tank 83. In practical applications, the second metal foam phase change capsule 81 is arranged on the support frame 71 and can contact the piston wind in the tunnel. When the temperature of the piston wind is lower than 26°C in summer or lower than 18°C in winter, the second metal foam phase change capsule 81 undergoes a phase change and transfers the latent heat of phase change to the water in the capillary network 82. The water in the capillary network 82 absorbs heat and flows into the heat preservation water tank 83 through the water inlet of the heat preservation water tank 83 for storage. The water stored in the heat preservation water tank 83 can be transmitted to the subway equipment room for use, thus saving energy. In addition, while absorbing the heat of the tunnel piston wind, the second metal foam phase change capsule 81 can also absorb the equipment heat during the operation of the wind wheel 72, which can not only improve the power generation efficiency of the power generation mechanism 7 throughout the season, but also improve the heat collection in winter and the energy utilization rate.

[0047] Continue to refer to Figure 1 As shown, the piston wind output mechanism 3 further includes a ventilation fan 32. The ventilation fan 32 is fixed inside the piston wind output pipe 31. The ventilation fan 32 can increase the gas pressure inside the piston wind output pipe 31, so that the filtered piston wind can be introduced into the subway station hall faster, accelerating the air flow in the subway station hall and thus improving the air quality in the subway station hall.

[0048] Furthermore, a muffler 33 is provided on the piston wind output pipe 31. The muffler 33 can reduce the noise generated by the ventilation fan 32 during operation, further improving the comfort of the subway station hall.

[0049] Continue to refer to Figure 1As shown in the figure, the piston wind energy-saving cold and heat supply system for the subway station building further includes a tunnel-station building air isolation mechanism 9. The tunnel-station building air isolation mechanism 9 includes a first ventilation opening 91, a second valve 92, a fan 93 and a limit switch 94. The first ventilation opening 91 is arranged above the door opening and closing frame of the subway train, and the first ventilation opening 91 is communicated with the air outlet of the piston wind output pipe 31. The fan 93 and the second valve 92 are located between the air outlet of the piston wind output pipe 31 and the first ventilation opening 91. The limit switch 94 is fixed above the subway screen door, and the limit switch 94 is electrically connected to the control mechanism 4 to transmit the opening and closing state of the subway screen door to the control mechanism 4. Both the fan 93 and the second valve 92 are electrically connected to the control mechanism 4. In practical applications, the length of the first ventilation opening 91 is greater than or equal to the width of the subway screen door, and the direction of the piston wind flowing out of the first ventilation opening 91 is perpendicular to the ground. Specifically, the limit switch 94 can monitor the opening and closing state of the subway screen door. When the subway screen door is opened, the limit switch 94 sends a signal to the control mechanism 4, and the control mechanism 4 controls the second valve 92 to open, so that the piston wind can enter the subway station building from the first ventilation opening 91. The control mechanism 4 simultaneously controls the fan 93 to start to increase the pressure of the piston wind, so that the piston wind entering the subway station building from the first ventilation opening 91 forms a wind curtain perpendicular to the ground, thereby dividing the inside of the subway and the subway station building into two independent areas, preventing the mixing of air between the subway train tunnel and the subway station building, reducing the temperature fluctuation of the subway platform, and at the same time avoiding the dust or insects in the subway tunnel from entering the subway platform, ensuring the air quality of the subway platform.

[0050] Continue to refer to Figure 1 As shown in the figure, the piston wind energy-saving cold and heat supply system for the subway station building further includes a tunnel 10 and a plurality of porous baffle plates 11. The tunnel 10 is arranged in the tunnel between two subway station buildings. A plurality of porous baffle plates 11 are arranged at intervals in the tunnel 10. In practical applications, the shape of the tunnel 10 is U-shaped. Setting the tunnel 10 as U-shaped makes the heat transfer efficiency of the piston wind in the tunnel 10 higher. A plurality of porous baffle plates 11 are arranged at intervals of 10 m in the tunnel 10. Since the temperature of the underground soil is different from that of the ground surface, the tunnel 10 is arranged in the underground soil, so that the piston wind flows in the tunnel 10 and conducts heat transfer with the soil. The arrangement of the porous baffle plates 11 enables the piston wind to circulate in the tunnel 10, so that the piston wind can transfer more heat. As a result, the temperature of the piston wind entering the piston wind inlet pipe 1 is lower than that of the subway station building in summer and higher than that of the subway station building in winter, further improving the comfort of the subway station building.

[0051] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.

[0052] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A piston wind energy-saving cold and heat supply system for a subway station house, characterized in that, It includes a piston wind inlet pipe (1), a piston wind filtering mechanism (2), and a piston wind output mechanism (3); The piston wind output mechanism (3) includes a piston wind output pipe (31); The piston wind inlet pipe (1) is arranged in the subway tunnel; the piston wind filtering mechanism (2) is fixed in the piston wind inlet pipe (1) and near the air inlet of the piston wind inlet pipe (1), and can filter the piston wind entering the piston wind inlet pipe (1); The air inlet of the piston wind output pipe (31) is communicated with the air outlet of the piston wind inlet pipe (1), and the air outlet of the piston wind output pipe (31) extends into the subway station hall to introduce the filtered piston wind into the subway station hall; It further includes a piston wind energy conversion mechanism (5); The piston wind energy conversion mechanism (5) includes a housing (51), a coil pipe (52), a plurality of metal honeycomb foams (53), a first metal foam phase change capsule (54), a first wind speed sensor (55), a phase change layer baffle (56), a plurality of coil pipe baffles (57), a plurality of motors (58), and a first valve (59); The coil pipe (52) includes a water inlet pipe (521), a water outlet pipe (522), and a first coil pipe (523); The air inlet of the housing (51) is communicated with the air outlet of the piston wind inlet pipe (1), and the air outlet of the housing (51) is communicated with the air inlet of the piston wind output pipe (31); a first valve (59) is arranged between the air outlet of the piston wind inlet pipe (1) and the air inlet of the housing (51); A plurality of the metal honeycomb foams (53) are fixedly arranged in the housing (51) at intervals, and a plurality of the metal honeycomb foams (53) are all parallel to the flow direction of the piston wind; the first metal foam phase change capsule (54) is filled in the honeycomb cavity of the metal honeycomb foam (53); a first wind speed sensor (55) is fixed in the metal honeycomb foam (53); A first coil pipe (523) is arranged between every two adjacent metal honeycomb foams (53); the water inlets of a plurality of the first coil pipes (523) are all communicated with the water inlet pipe (521), and the water outlets of a plurality of the first coil pipes (523) are all communicated with the water outlet pipe (522); A plurality of the motors (58) are fixed at the air inlet of the housing (51) and correspond to the arrangement positions of the metal honeycomb foams (53) one by one; a phase change layer baffle (56) is fixed on the rotating shaft of each motor (58), and the motor (58) drives the phase change layer baffle (56) to rotate, so as to control the intake of the piston wind in the metal honeycomb foam (53); A plurality of the coil pipe baffles (57) are fixed at the air inlet of the housing (51) and are located between every two adjacent metal honeycomb foams (53); The first wind speed sensor (55), the first valve (59), and the motor (58) are all electrically connected to a control mechanism (4).

2. The piston wind energy-saving cold and heat supply system for subway station buildings according to claim 1, characterized in that The piston wind filtering mechanism (2) includes a plurality of cylindrical filter bags (21), a photocatalyst (22), an LED lamp (23), and an adsorption structure (24); A plurality of the cylindrical filter bags (21) are fixed inside the piston air inlet pipe (1) and near the air inlet of the piston air inlet pipe (1), and can filter the piston air entering the piston air inlet pipe (1) to obtain a primary filtered gas; the LED lamp (23) is fixed at the end of a plurality of the cylindrical filter bags (21); the photocatalyst (22) is arranged on the inner wall of the cylindrical filter bag (21) and can decompose organic pollutants in the primary filtered gas to obtain a secondary filtered gas; The adsorption structure (24) is arranged between the air outlet of the piston air inlet pipe (1) and the air inlet of the piston air outlet pipe (31), and the adsorption structure (24) can adsorb impurities in the secondary filtered gas to obtain a tertiary filtered gas.

3. The piston wind energy-saving cold and heat supply system for subway station buildings according to claim 2, characterized in that, The piston air filtering mechanism (2) further includes a dust discharge valve (25) and a dust collector (26); The dust collector (26) is arranged below the cylindrical filter bag (21) and is used for collecting dust on the surface of the cylindrical filter bag (21); the dust discharge valve (25) is fixed at the dust inlet of the dust collector (26); The dust discharge valve (25) is electrically connected to the control mechanism (4).

4. The piston wind energy-saving cold and heat supply system for subway station buildings according to claim 1, wherein It further includes a fire safety mechanism (6); The fire safety mechanism (6) includes a fire extinguishing gas storage tank (61), a fire extinguishing valve (62) and a stop valve (63); The fire extinguishing gas storage tank (61) is arranged in the subway station, and the air outlet of the fire extinguishing gas storage tank (61) is communicated with the piston air outlet pipe (31); the fire extinguishing valve (62) is arranged between the air outlet of the fire extinguishing gas storage tank (61) and the piston air outlet pipe (31); the stop valve (63) is arranged between the air outlet of the fire extinguishing gas storage tank (61) and the air outlet of the housing (51); Both the fire extinguishing valve (62) and the stop valve (63) are electrically connected to the control mechanism (4).

5. The piston wind energy-saving cold and heat supply system for subway station buildings according to claim 1, characterized in that, It further includes a power generation mechanism (7); The power generation mechanism (7) includes a plurality of support frames (71), a wind wheel (72), a gearbox (73), a speed regulating mechanism (74), a wind turbine generator (75) and an inverter (76); One ends of a plurality of the support frames (71) are fixed in the tunnel, and the other ends are respectively connected to a wind wheel (72); The gearbox (73), the speed regulating mechanism (74), the wind turbine generator (75) and the inverter (76) are all arranged in the subway tunnel; The gearbox (73), the speed regulating mechanism (74) and the wind turbine generator (75) are all electrically connected to the wind wheel (72); the wind turbine generator (75) is electrically connected to the inverter (76).

6. The piston wind energy-saving cold and heat supply system for subway station buildings according to claim 5, characterized in that, It further includes a tunnel energy storage mechanism (8); The tunnel energy storage mechanism (8) includes a second metal foam phase change capsule (81), a capillary network (82) and a heat preservation water tank (83); The second metal foam phase change capsule (81) is fixed on the support frame (71) and is located at the connection between the support frame (71) and the wind wheel (72); on the side of the second metal foam phase change capsule (81) away from the support frame (71), the capillary network (82) is fixed, and the capillary network (82) completely covers the second metal foam phase change capsule (81); the water inlet of the capillary network (82) is communicated with a water source, and the water outlet of the capillary network (82) is communicated with the water inlet of the heat preservation water tank (83).

7. The piston wind energy-saving cold and heat supply system for subway station buildings according to claim 1, characterized in that, The piston air output mechanism (3) further includes a ventilation fan (32); The ventilation fan (32) is fixed inside the piston air output pipe (31).

8. The piston wind energy-saving cold and heat supply system for subway station buildings according to claim 1, characterized in that, It further includes a tunnel station house air isolation mechanism (9); The tunnel station house air isolation mechanism (9) includes a first ventilation opening (91), a second valve (92), a fan (93) and a limit switch (94); The first ventilation opening (91) is arranged above the door opening and closing frame of the subway train, and the first ventilation opening (91) is communicated with the air outlet of the piston air output pipe (31); the fan (93) and the second valve (92) are located between the air outlet of the piston air output pipe (31) and the first ventilation opening (91); The limit switch (94) is fixed above the subway screen door, and the limit switch (94) is electrically connected to the control mechanism (4) to transmit the opening and closing state of the subway screen door to the control mechanism (4); The fan (93) and the second valve (92) are both electrically connected to the control mechanism (4).

9. The piston air energy-saving cold and heat supply system for a subway station house according to claim 1, characterized in that It further includes a tunnel (10) and a plurality of porous baffle plates (11); The tunnel (10) is arranged in the tunnel between two subway station houses; a plurality of the porous baffle plates (11) are arranged at intervals in the tunnel (10).

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