Sidewalk cooling system and cooling control method

Abstract

The invention relates to the technical field of urban cooling, in particular to a sidewalk cooling system and a cooling control method. The sidewalk cooling system comprises a mounting frame, a floor tile body, a water pumping module, a water supply pipeline module, a temperature sensing device, a video acquisition device, a temperature control module, a refrigerator, a movable passive cooling module and a cooling pipeline module. The mounting frame is mounted on a sidewalk, the floor tile body and the movable passive cooling module are both mounted on the mounting frame, and the floor tile body is located above the movable passive cooling module; two ends of the water supply pipeline module are respectively connected with the water pumping module and the movable passive cooling module, the temperature control module is respectively in communication connection with the temperature sensing device, the video acquisition device and the refrigerating machine, the refrigerating machine is connected with the movable passive cooling module, and the cooling pipeline module is connected with the refrigerating machine. And the sidewalk is efficiently and continuously cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of urban cooling, and particularly to a sidewalk cooling system and a cooling control method. Background Art

[0002] Under the background of global warming, extreme high-temperature weather frequently occurs in cities. As a gathering place for urban population, business districts need to alleviate the high-temperature problem and achieve sustainable cooling of business districts.

[0003] Sustainable cooling of business districts includes cooling the interior of buildings and cooling sidewalks. Air conditioners are widely used to cool the interior of buildings. Spraying water is generally used to cool sidewalks, but the duration of spraying water cooling is short. Some use new floor tiles capable of cooling, such as a water storage evaporation cooling floor tile disclosed in a Chinese patent with the publication number CN107653763A. Such floor tiles can cool through the evaporation of water in contact with the air, but the flatness of the floor tiles is poor; some use an external air conditioner air outlet cooling technology, with the air outlet set on the sidewalk on the ground surface. However, the cooling level of this sidewalk cooling method depends on manual adjustment, and the actual cooling effect is affected by the work experience of the staff. At the same time, the cold air dissipates extremely quickly, and the cooling efficiency is often not high. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a sidewalk cooling system and a cooling control method, which can efficiently and continuously cool the sidewalk while ensuring the flatness of the sidewalk.

[0005] To solve the above technical problem, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a sidewalk cooling system, including an installation frame, a floor tile body, a pumping module, a water supply pipeline module, a temperature sensing device, a video acquisition device, a temperature control module, a refrigerator, a mobile passive cooling module, and a cooling pipeline module; the installation frame is installed on the sidewalk, the floor tile body and the mobile passive cooling module are both installed on the installation frame, and the floor tile body is located above the mobile passive cooling module; both ends of the water supply pipeline module are respectively connected to the pumping module and the mobile passive cooling module, the temperature control module is communicatively connected to the temperature sensing device, the video acquisition device, and the refrigerator, the refrigerator is connected to the mobile passive cooling module, and the cooling pipeline module is connected to the refrigerator.

[0007] By adopting the above technical solution, when cooling the sidewalk, the temperature sensing device can obtain the temperature value of the floor tile body in real time and send it to the temperature control module. The video acquisition device can obtain the crowd image information on the sidewalk paved by the floor tile body in real time and send it to the temperature control module. The temperature control module then controls the chiller to work based on the temperature value and the crowd image information, and the cooling pipeline module can cool the mobile passive cooling module, thereby realizing the cooling of the floor tile body. At the same time, the pumping module pumps water, and the water supply pipeline module supplies the pumped water to the mobile passive cooling module for water cooling, which can synchronously realize the cooling of the floor tile body. By cooling the air in the mobile passive cooling module through the chiller and water cooling, the cooling of the floor tile body can be effectively realized, so as to realize the cooling of the sidewalk through active cooling and passive cooling. Moreover, the cooling duration is long, it can be opened and closed at any time, the floor tile body has good flatness, and it can also adjust the temperature adaptively according to the temperature of the floor tile body and the number of people, without relying on manual labor. Therefore, it can efficiently and continuously cool the sidewalk while ensuring the flatness of the sidewalk.

[0008] Optionally, the mobile passive cooling module includes a frame body, a water inlet part, a water outlet part, a cooling water diversion tray, a rectangular spiral heat dissipation pipe and two array heat dissipation fins; the water inlet part, one of the array heat dissipation fins, the cooling water diversion tray, the rectangular spiral heat dissipation pipe, the other array heat dissipation fin, and the water outlet part are sequentially arranged on the frame body from top to bottom. The water inlet part is connected to the water supply pipeline module, and the cooling water diversion tray is communicated with the rectangular spiral heat dissipation pipe.

[0009] By adopting the above technical solution, in the mobile passive cooling module, water first enters the first array heat dissipation fin with a higher horizontal height through the water inlet part, then enters the cooling water diversion tray from the array heat dissipation fin, then enters the rectangular spiral heat dissipation pipe, then enters the second array heat dissipation fin with a lower horizontal height, and finally flows out from the water outlet part. During the flowing process of water, it can exchange heat with air and various components, so as to achieve the purpose of cooling the floor tile body.

[0010] Optionally, the mobile passive cooling module further includes an exhaust fan and a cold air part. The exhaust fan is arranged on the top of the frame body. The cold air part includes two cold air ventilation pipes and two pipeline exhaust fans; the cold air ventilation pipes are connected to the pipeline exhaust fans and extend into the frame body. The extension part of one of the cold air ventilation pipes is located between the upper array heat dissipation fin and the cooling water diversion tray, and the extension part of the other cold air ventilation pipe is located below the water outlet part.

[0011] By adopting the above technical solution, when the exhaust fan works, the cold air machine can displace the heat conducted from the floor tile body into the frame body through ventilation, thereby further improving the cooling effect on the floor tile body.

[0012] Optionally, the exhaust fan includes an exhaust fan body, a cleaning conduit, and a cleaning reservoir; the exhaust fan body is installed at the top of the frame body, and the bottom end of the exhaust fan body is connected to the cleaning reservoir through the cleaning conduit.

[0013] By adopting the above technical solution, during exhaust, impurities in the air can enter the cleaning reservoir through the cleaning conduit, effectively ensuring the cleanliness of the exhaust fan body.

[0014] Optionally, the water inlet component includes a water inlet pipeline, a metal heat dissipation pipe, and multiple pipeline branches; the metal heat dissipation pipe is horizontally fixed on the frame body, both ends of the water inlet pipeline are respectively communicated with the water supply pipeline module and the metal heat dissipation pipe, and multiple pipeline branches are all communicated with the metal heat dissipation pipe.

[0015] By adopting the above technical solution, water can move from the water supply pipeline module to the water inlet pipeline, pass through the metal heat dissipation pipe and flow out to the array heat dissipation fins through multiple pipeline branches. At the same time, heat exchange can occur when the water is in the metal heat dissipation pipe.

[0016] Optionally, the array heat dissipation fins include a metal fixing plate and multiple different-shaped heat dissipation fins; the metal fixing plate is fixed on the frame body, multiple first water leakage holes for draining water are opened on the metal fixing plate, and multiple different-shaped heat dissipation fins are respectively arranged on the upper and lower sides of the metal fixing plate.

[0017] By adopting the above technical solution, when water flows to the array heat dissipation fins, the water can exchange heat with multiple different-shaped heat dissipation fins, take away the heat on the multiple different-shaped heat dissipation fins, and then flow out through the first water leakage holes.

[0018] Optionally, the cooling water diversion tray includes a first cooling water diversion tray and a second cooling water diversion tray stacked and installed on the frame body; the first cooling water diversion tray is above the second cooling water diversion tray and is provided with multiple second water leakage holes, a third water leakage hole is opened on the second water diversion tray, and the third water leakage hole is communicated with the rectangular spiral heat dissipation pipe.

[0019] By adopting the above technical solution, when water enters the cooling water diversion tray, it can flow from the first cooling water diversion tray to the second cooling water diversion tray and then flow to the rectangular spiral heat dissipation pipe. During the above process, the water can exchange heat with the cooling water diversion tray.

[0020] Optionally, the rectangular spiral heat dissipation pipe includes a rectangular metal plate and a copper conduit; the rectangular metal plate is fixed on the frame body, the copper conduit is spirally embedded in the rectangular metal plate, the copper conduit has a water inlet and a water outlet, the water inlet is communicated with the third water leakage hole, and the water outlet is located above the lower array heat dissipation fins.

[0021] By adopting the above technical solution, when water enters the rectangular spiral heat dissipation tube, the water can conduct heat exchange inside the copper conduit and then enter the array heat sink below after flowing out.

[0022] Optionally, the water outlet member includes an upper water outlet plate and a lower water outlet plate stacked and installed on the frame body; the upper water outlet plate is above the lower water outlet plate and is provided with a plurality of first water outlet holes, and a drain port is arranged on the frame body between the upper water outlet plate and the lower water outlet plate.

[0023] By adopting the above technical solution, after the water flow reaches the upper water outlet plate, it can flow to the lower water outlet plate through the first water outlet holes and flow out through the drain port.

[0024] In a second aspect, the present invention provides a sidewalk cooling control method, which is applied to the sidewalk cooling system as described in the first aspect, and includes the following steps:

[0025] S1: Real-time obtain the floor tile body temperature value w1 sent by the temperature sensing device and the crowd image information sent by the video acquisition device;

[0026] S2: Obtain the number of people information based on the crowd image information, and the number of people information includes: the total number of people n, the number of children n1, the number of young and middle-aged people n2, and the number of elderly people n3;

[0027] S3: Obtain the proportion of children a1 = n1 / n, the proportion of young and middle-aged people a2 = n2 / n, and the proportion of elderly people a3 = n3 / n within the t time period based on the number of people information;

[0028] S4: Set the temperature threshold w3 = w2 + p, where w2 is the initial threshold and p is the harmonic value according to the crowd proportion. When a1 > a2 and a1 > a3, let p = p1; when a2 > a1 and a2 > a3, let p = p2; when a3 > a2 and a3 > a1, let p = p3;

[0029] S5: When w3 < w1, a cooling start signal will be sent to the refrigerator; when w3 ≥ w1, a cooling stop signal will be sent to the refrigerator.

[0030] By adopting the above technical solution, the video acquisition device real-time collects the image information of the road sidewalk temperature acquisition point, produces a jpeg format picture and transmits it to the temperature control module through the second signal transmission module. The temperature sensing device real-time collects the floor tile body temperature value and transmits the temperature value signal to the temperature control module through the first signal transmission module. The temperature control module analyzes the current crowd characteristics and temperature value and sends a cooling start or stop signal to the refrigerator module, thereby realizing the cooling of the floor tile body.

[0031] In summary, the present invention at least includes the following beneficial technical effects:

[0032] Cooling the air in the mobile passive cooling module through a refrigerator and water cooling can effectively cool the floor tile body, thereby cooling the sidewalk through active cooling and passive cooling. Moreover, the cooling can last for a long time and can be opened and closed at any time. The floor tile body has good flatness, and can also adjust the temperature adaptively according to the temperature of the floor tile body and the number of people, without relying on manual labor. Therefore, it can efficiently and continuously cool the sidewalk while ensuring the flatness of the sidewalk. Brief Description of the Drawings

[0033] Figure 1 It is a framework diagram of the sidewalk cooling system in the embodiment of the present invention.

[0034] Figure 2 It is a structural diagram of the installation frame in the embodiment of the present invention.

[0035] Figure 3 It is a structural diagram of the mobile passive cooling module in the embodiment of the present invention.

[0036] Figure 4 It is a structural diagram of the rectangular spiral heat dissipation tube in the embodiment of the present invention.

[0037] Figure 5 It is a structural diagram of the array heat sink in the embodiment of the present invention.

[0038] Figure 6 It is a flow schematic frame of the sidewalk cooling method in the embodiment of the present invention.

[0039] Description of the Reference Numerals: 1. Installation frame; 101. External frame; 102. Internal installation groove; 103. Strip-shaped rubber seal line; 2. Floor tile body; 3. Water pumping module; 4. Water supply pipeline module; 5. Temperature sensing device; 6. Video acquisition device; 7. Temperature control module; 8. Refrigerator; 9. Mobile passive cooling module; 91. Frame body; 911. Moving wheel; 92. Exhaust fan; 921. Exhaust fan body; 922. Cleaning duct; 923. Cleaning storage; 93. Water inlet part; 931. Water inlet pipeline; 932. Metal heat dissipation tube; 933. Pipeline branch; 94. Water outlet part; 941. Upper water outlet plate; 942. Lower water outlet plate; 95. Array heat sink; 951. Metal fixing plate; 952. Special-shaped heat sink; 953. First water leakage hole; 96. Cooling water diversion tray; 961. First cooling water diversion tray; 962. Second cooling water diversion tray; 963. Second water leakage hole; 964. Third water leakage hole; 97. Water outlet pipe interface; 98. Flexible water connection pipe; 99. Rectangular spiral heat dissipation tube; 991. Rectangular metal plate; 992. Copper conduit; 910. Cold air part; 9101. Cold air ventilation pipe; 9102. Pipeline exhaust fan; 9103. Anti-pollution cleaning net; 10. Cooling pipeline module; 11. Heat preservation module. Detailed Embodiment

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The terms used in the following embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification and appended claims of the present invention, the singular forms "a", "an", "the", "above-mentioned", "said", and "this" are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the present invention refers to and includes any or all possible combinations of one or more of the listed items. The term "exemplary" means "serving as an example, embodiment or illustration", and any embodiment described as "exemplary" here does not have to be construed as superior or better than other embodiments. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as implying or suggesting relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] An embodiment of the present invention provides a sidewalk cooling system.

[0043] Reference Figure 1 , the sidewalk cooling system includes: a mounting frame 1, a floor tile body 2, a pumping module 3, a water supply pipeline module 4, a temperature sensing device 5, a video acquisition device 6, a temperature control module 7, a refrigerator 8, a mobile passive cooling module 9, a cooling pipeline module 10 and a heat insulation module 11.

[0044] The mounting frame 1 is installed on the sidewalk. Both the floor tile body 2 and the mobile passive cooling module 9 are installed on the mounting frame 1, and the floor tile body 2 is located above the mobile passive cooling module 9. The two ends of the water supply pipeline module 4 are respectively connected to the pumping module 3 and the mobile passive cooling module 9, and the pumping module 3 is connected to a water source. The video acquisition device 6 and the temperature sensing device 5 are arranged at the sidewalk video acquisition point and the sidewalk temperature acquisition point. The temperature control module 7 is communicatively connected to the temperature sensing device 5, the video acquisition device 6 and the refrigerator 8 respectively. The refrigerator 8 is connected to the mobile passive cooling module 9, the cooling pipeline module 10 is connected to the refrigerator 8, and the heat insulation module 11 is installed on the cooling pipeline module 10 and connected to the mounting frame 1.

[0045] Reference Figure 2The mounting frame 1 includes an external frame 101, an internal mounting groove 102 and a strip rubber sealing line 103. The external frame 101 is fixed by bolts with a metal strip made of stainless steel, and the internal mounting groove 102 is a square metal frame. The internal mounting groove 102 is connected to the external frame 101 after being arranged, and the external frame 101 can be fixedly connected with the external frame 101 by bolts. A pit is provided on the top of the internal mounting groove 102, and the strip rubber sealing line 103 is installed in the pit. The adjacent two internal mounting grooves 102 are sealed by the strip rubber sealing line 103 in the pit. The strip rubber sealing line 103 is an I-shaped structure, and a drainage groove is provided on the top for drainage.

[0046] The floor tile body 2 is a rectangular full-body tile, which is an unglazed ceramic tile material with a square structure. The surface is coated with anti-skid frosted particles to enhance the anti-skid effect. The floor tile body 2 is installed on the internal installation groove 102.

[0047] The pumping module 3 includes a pump, a pumping pipe and a switch valve. The pump and the switch valve are installed on the pumping pipe to start and stop the pumping. One end of the pumping pipe is connected to the water supply pipeline module 4, and the other end is connected to the water source. The water source can be tap water in the water pipe or deep underground water in the underground waterway, and the depth of the deep underground water is not less than 30 meters.

[0048] The water supply pipeline module 4 includes a water supply pipe and a pressurizer. The pressurizer is installed on the water supply pipe and is used to pressurize the water supply. One end of the water supply pipe is connected to the water pumping pipe, and the other end is connected to the mobile passive cooling module 9. The water supply pipe is made of PE material. After the water pumping module 3 pumps water, the water supply pipeline module 4 can supply water to the mobile passive cooling module 9.

[0049] The temperature sensing device 5 includes a temperature acquisition module, a first signal transmission module and a first mounting bracket. The temperature acquisition module is equipped with an electronic temperature tester, which is in communication connection with the first signal transmission module, and the first signal transmission module is in communication connection with the temperature control module 7. The electronic temperature tester can acquire the temperature value of the floor tile body 2 in real time, and the first signal transmission module converts the temperature value into a temperature value signal and transmits the temperature value signal to the temperature control module 7. The temperature acquisition module and the first signal transmission module are both mounted on the first mounting bracket, and the first mounting bracket is fixed at the temperature acquisition point of the sidewalk.

[0050] The video acquisition device 6 includes a high-definition camera, a second signal transmission module, and a second mounting bracket. The high-definition camera is communicatively connected to the second signal transmission module, and the second signal transmission module is communicatively connected to the temperature control module 7. The high-definition camera can collect the crowd image information at the sidewalk temperature collection point in real time, generate a JPEG format picture, and send it to the temperature control module 7 through the second signal transmission module. Both the high-definition camera and the second signal transmission module are mounted on the second mounting bracket, and the second mounting bracket is fixed at the video collection point of the sidewalk.

[0051] Reference Figure 3 , the mobile passive cooling module 9 includes a frame body 91, and an exhaust fan 92, a water inlet member 93, a water outlet member 94, an array of heat sinks 95, a cooling water diversion tray 96, a water outlet pipe interface 97, a flexible water connection pipe 98, a rectangular spiral heat pipe 99, and a cold air member 910 provided on the frame body 91. Among them, the exhaust fan 92 is located at the top of the frame body 91, the water inlet member 93 is located at the upper part of the frame body 91, the water outlet member 94 is located at the lower part of the frame body 91, and the array of heat sinks 95 is located between the water inlet member 93 and the water outlet member 94.

[0052] The frame body 91 is a rectangular metal frame, which is installed in the internal installation groove 102 and located below the floor tile body 2. A plurality of moving wheels 911 are installed at the bottom of the frame body 91.

[0053] The exhaust fan 92 includes an exhaust fan body 921, a cleaning duct 922, and a cleaning reservoir 923. The exhaust fan body 921 is installed at the top end of the frame body 91, and the bottom end of the exhaust fan body 921 is connected to the cleaning reservoir 923 through the cleaning duct 922.

[0054] The water inlet member 93 includes a water inlet pipeline 931, a metal heat pipe 932, and a plurality of pipeline branches 933. The metal heat pipe 932 is horizontally fixed on the frame body 91. Both ends of the water inlet pipeline 931 are communicated with the water supply pipe and the metal heat pipe 932 respectively, and a plurality of pipeline branches 933 are all communicated with the metal heat pipe 932. The water in the water supply pipe passes through the water inlet pipeline 931 and the metal heat pipe 932 in sequence, and then is introduced by the pipeline branches 933.

[0055] The array of heat sinks 95 can be one or more. In the embodiment of the present application, the array of heat sinks 95 is two. One of the arrays of heat sinks 95 is located below the water inlet member 93, and the other array of heat sinks 95 is located above the water outlet member 94. Reference Figure 5 , the array of heat sinks 95 includes a metal fixing plate 951 and a plurality of irregular heat sinks 952. The metal fixing plate 951 is fixed on the frame body 91. A plurality of first water leakage holes 953 for draining water are opened on the metal fixing plate 951, and a plurality of irregular heat sinks 952 are respectively arranged on the upper and lower sides of the metal fixing plate 951.

[0056] The cooling water diversion tray 96 is located between two array heat sinks 95 and adopts a rectangular double-layer frame structure, including a first cooling water diversion tray 961 and a second cooling water diversion tray 962 stacked and installed on the frame body 91. The first cooling water diversion tray 961 is above the second cooling water diversion tray 962. A plurality of second water leakage holes 963 are formed in the first cooling water diversion tray 961, and the number of the second water leakage holes 963 is preferably four. A third water leakage hole 964 is formed in the second water diversion tray.

[0057] The third water leakage hole 964 is communicated with the water outlet pipe interface 97, the water outlet pipe interface 97 is communicated with the flexible water connection pipe 98, and the flexible water connection pipe 98 is communicated with the rectangular spiral heat dissipation pipe 99. Refer to Figure 4 , the rectangular spiral heat dissipation pipe 99 is located between the cooling water diversion tray 96 and the lower array heat sink 95, and includes a rectangular metal plate 991 and a copper conduit 992. The rectangular metal plate 991 is fixed on the frame body 91, and the copper conduit 992 is spirally embedded on the rectangular metal plate 991. The copper conduit 992 has a water inlet and a water outlet. The water inlet is communicated with the flexible water connection pipe 98, and the water outlet is above the lower array heat sink 95.

[0058] The water outlet part 94 adopts a rectangular double-layer frame structure, including an upper water outlet plate 941 and a lower water outlet plate 942 stacked and installed on the frame body 91. The upper water outlet plate 941 is above the lower water outlet plate 942. A plurality of first water outlet holes are formed in the upper water outlet plate 941, and the number of the first water outlet holes is preferably four. A drain port is arranged on the frame body 91 between the upper water outlet hole and the lower water outlet hole, and the water after heat exchange is discharged from the drain port.

[0059] Refer to Figure 3 , the cold air part 910 includes two cold air ventilation pipes 9101, two pipe exhaust fans 9102 and two anti-pollution cleaning nets 9103. The cold air ventilation pipes 9101 are connected to the pipe exhaust fans 9102 and extend into the frame body 91, and the anti-pollution cleaning nets 9103 are located inside one end of the cold air ventilation pipes 9101 close to the frame body 91. The extension part of one of the cold air ventilation pipes 9101 is located between the upper array heat sink 95 and the cooling water diversion tray 96, and the extension part of the other cold air ventilation pipe 9101 is located below the lower water outlet plate 942. The anti-pollution cleaning net 9103 is made of metal mesh material and has a plurality of ventilation fine holes on the surface. The pipe exhaust fan 9102 can extract natural cold air into the frame body 91. The natural cold air can be the natural cold air in the deep underground space.

[0060] The cooling pipeline module 10 includes a mounting base plate and a cooling water pipe. The mounting base plate is made of metal and has a copper heat dissipation coating on its surface. The mounting base plate is mounted on the frame body 91, and grooves and fixing devices for mating connection with the cooling water pipe are provided on the mounting base plate. The inlet end of the cooling water pipe is connected to the refrigerator 8, and the outlet end is connected to a steel heat dissipation device through a loop valve for heat dissipation. The water supply pipe is made of PE-RT material. The insulation module 11 uses a flexible cooling and insulation film, which is mounted on the cooling water pipe and connected to the mounting frame 1 to achieve insulation.

[0061] When cooling the sidewalk, the temperature sensing device 5 obtains the temperature value of the floor tile body 2 in real time and sends it to the temperature control module 7. The video acquisition device 6 obtains the crowd image information on the sidewalk paved with the floor tile body 2 in real time and sends it to the temperature control module 7. The temperature control module 7 controls the operation of the refrigerator 8 based on the temperature value and the crowd image information, and the cooling pipeline module 10 can cool the mobile passive cooling module 9, thereby realizing the cooling of the floor tile body 2. At the same time, the pumping module 3 pumps water, and the water supply pipeline module 4 supplies the pumped water to the mobile passive cooling module 9 for water cooling, synchronously realizing the cooling of the floor tile body 2.

[0062] In the above process, the cooling water pipe in the cooling pipeline module 10 directly exchanges heat with the air in the frame body 91 for cooling. In the mobile passive cooling module 9, water first enters the first array of heat dissipation fins 95 at a higher horizontal level through the water inlet member 93, then enters the cooling water diversion tray 96 from the array of heat dissipation fins 95, and then sequentially passes through the water outlet interface 97 and the flexible water pipe 98 to enter the rectangular spiral heat dissipation pipe 99, and then enters the second array of heat dissipation fins 95 at a lower horizontal level, and finally flows out through the water outlet member 94 to achieve the entire heat exchange. At the same time, under the exhaust of the exhaust fan 92, the cold air member 910 can displace the heat conducted from the floor tile body 2 into the frame body 91 through ventilation, which can further improve the cooling effect.

[0063] By cooling the air in the frame body 91 through the refrigerator 8, air cooling and water cooling, the cooling of the floor tile body 2 can be effectively realized, thereby realizing the cooling of the sidewalk. And the cooling duration is long, it can be opened and closed at any time, the floor tile body 2 has good flatness, and it can also perform adaptive temperature adjustment according to the temperature of the floor tile body 2 and the number of people, without relying on manual labor. Therefore, it can efficiently and continuously cool the sidewalk while ensuring the flatness of the sidewalk.

[0064] The embodiment of the present invention also provides a sidewalk cooling control method.

[0065] Reference Figure 6 A sidewalk cooling control method is realized through the above temperature control module 7 and includes the following steps:

[0066] S1: Obtain the temperature value w1 of the floor tile body 2 sent by the temperature sensing device 5 and the crowd image information sent by the video acquisition device 6 in real time.

[0067] S2: Obtain the number information based on the crowd image information. The number information includes: the total number n, the number of children n1, the number of young and middle-aged people n2, and the number of elderly people n3.

[0068] S3: Obtain the proportion of children a1 = n1 / n, the proportion of young and middle-aged people a2 = n2 / n, and the proportion of elderly people a3 = n3 / n within the time period t based on the number information.

[0069] S4: Set the temperature threshold w3 = w2 + p, where w2 is the initial threshold and p is the harmonic value according to the population proportion. When a1 > a2 and a1 > a3, let p = p1; when a2 > a1 and a2 > a3, let p = p2; when a3 > a2 and a3 > a1, let p = p3.

[0070] S5: When w3 < w1, send a cooling start signal to the refrigerator 8; when w3 ≥ w1, send a cooling stop signal to the refrigerator 8.

[0071] As described above, the above embodiments are only used to introduce the technical solutions of the present invention in detail. However, the description of the above embodiments is only used to help understand the method and its core idea of the present invention, and should not be construed as a limitation of the present invention. Those skilled in the art of this technology can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered within the protection scope of the present invention.

Claims

1. A sidewalk cooling system, characterized in that, It includes an installation frame (1), a floor tile body (2), a water pumping module (3), a water supply pipeline module (4), a temperature sensing device (5), a video acquisition device (6), a temperature control module (7), a refrigerator (8), a mobile passive cooling module (9), and a cooling pipeline module (10); the installation frame (1) is installed on the sidewalk, the floor tile body (2) and the mobile passive cooling module (9) are both installed on the installation frame (1), and the floor tile body (2) is located above the mobile passive cooling module (9); both ends of the water supply pipeline module (4) are respectively connected to the water pumping module (3) and the mobile passive cooling module (9), the temperature control module (7) is respectively communicatively connected to the temperature sensing device (5), the video acquisition device (6), and the refrigerator (8), the refrigerator (8) is connected to the mobile passive cooling module (9), and the cooling pipeline module (10) is connected to the refrigerator (8).

2. The sidewalk cooling system according to claim 1, characterized in that, The mobile passive cooling module (9) includes a frame body (91), a water inlet part (93), a water outlet part (94), a cooling water diversion tray (96), a rectangular spiral heat dissipation pipe (99), and two array heat dissipation fins (95); the water inlet part (93), one of the array heat dissipation fins (95), the cooling water diversion tray (96), the rectangular spiral heat dissipation pipe (99), the other array heat dissipation fin (95), and the water outlet part (94) are sequentially arranged on the frame body (91) from top to bottom, the water inlet part (93) is connected to the water supply pipeline module (4), and the cooling water diversion tray (96) is communicated with the rectangular spiral heat dissipation pipe (99).

3. The sidewalk cooling system according to claim 2, wherein, The mobile passive cooling module (9) further includes an exhaust fan (92) and a cold air part (910), the exhaust fan (92) is arranged on the top of the frame body (91), and the cold air part (910) includes two cold air ventilation pipes (9101) and two pipeline exhaust fans (9102); the cold air ventilation pipes (9101) are connected to the pipeline exhaust fans (9102) and extend into the frame body (91), and the extension part of one of the cold air ventilation pipes (9101) is located between the upper array heat dissipation fin (95) and the cooling water diversion tray (96), and the extension part of the other cold air ventilation pipe (9101) is located below the water outlet part (94).

4. The sidewalk cooling system according to claim 3, wherein, The exhaust fan (92) includes an exhaust fan body (921), a cleaning conduit (922), and a cleaning reservoir (923); the exhaust fan body (921) is installed at the top end of the frame body (91), and the bottom end of the exhaust fan body (921) is connected to the cleaning reservoir (923) through the cleaning conduit (922).

5. The sidewalk cooling system according to claim 2, characterized in that, The water inlet part (93) includes a water inlet pipeline (931), a metal heat dissipation pipe (932), and a plurality of pipeline branches (933); the metal heat dissipation pipe (932) is horizontally fixed on the frame body (91), both ends of the water inlet pipeline (931) are respectively communicated with the water supply pipeline module (4) and the metal heat dissipation pipe (932), and a plurality of the pipeline branches (933) are all communicated with the metal heat dissipation pipe (932).

6. The sidewalk cooling system according to claim 2, wherein The array heat sink (95) comprises a metal fixing plate (951) and a plurality of anisotropic heat sinks (952); the metal fixing plate (951) is fixed on the frame body (91); a plurality of first water leakage holes (953) for draining water are provided on the metal fixing plate (951); and the plurality of anisotropic heat sinks (952) are respectively arranged on the upper and lower sides of the metal fixing plate (951).

7. The sidewalk cooling system according to claim 2, characterized in that, The cooling water drawer (96) comprises a first cooling water drawer (961) and a second cooling water drawer (962) which are stacked and installed on the frame body (91); the first cooling water drawer (961) is above the second cooling water drawer (962) and is provided with a plurality of second water leakage holes (963); the second water drawer (961) is provided with a third water leakage hole (964); the third water leakage hole (964) is connected to the rectangular spiral heat dissipation pipe (99).

8. The sidewalk cooling system according to claim 7, wherein The rectangular spiral heat dissipation pipe (99) comprises a rectangular metal plate (991) and a copper conduit (992); the rectangular metal plate (991) is fixed on the frame body (91), the copper conduit (992) is spirally embedded in the rectangular metal plate (991), and the copper conduit (992) has a water inlet and a water outlet, the water inlet is connected to the third water leakage hole (964), and the water outlet is located above the lower array heat dissipation fin (95).

9. The sidewalk cooling system according to claim 2, wherein The water outlet member (94) comprises an upper water outlet plate (941) and a lower water outlet plate (942) which are stacked and installed on the frame body (91); the upper water outlet plate (941) is above the lower water outlet plate (942) and is provided with a plurality of first water outlet holes, and a drainage port is provided on the frame body (91) between the upper water outlet plate (941) and the lower water outlet plate (942).

10. A sidewalk cooling control method is applied to the sidewalk cooling system according to any one of claims 1-9, characterized in that, The following steps are involved: S1: Real-time acquisition of the temperature value w1 of the floor tile body (2) emitted by the temperature sensing device (5) and the crowd image information emitted by the video acquisition device (6); S2: Acquire the number of people information based on the crowd image information, the number of people information includes: total number of people n, number of children n1, number of young and middle-aged people n2, and number of elderly people n3; S3: Based on the population information, the proportion of children in time period t is obtained as a1 = n1 / n, the proportion of young and middle-aged people as a2 = n2 / n, and the proportion of the elderly as a3 = n3 / n; S4: Set the temperature threshold w3 = w2 + p, where w2 is the initial threshold and p is the harmonic value based on the population ratio. When a1>a2 and a1>a3, let p=p1, when a2>a1 and a2>a3, let p=p2, when a3>a2 and a3>a1, let p=p3; S5: When w3 <w1时,将向制冷机(8)发出冷却启动信号,当w3≥w1时将向制冷机(8)发出冷却停止信号。

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