Fire protection and thermal insulation system for glass curtain walls

Abstract

The present invention discloses a fireproof and heat-insulating system applied to a glass curtain wall, and relates to the technical field of glass curtain walls, which includes a keel, a curtain wall unit, and a fireproof board, wherein the keel includes a plurality of columns and a beam fixed to the columns, the curtain wall unit is installed on the columns and the beam, and the fireproof board is located on the side of the columns and the curtain wall unit facing the inside of the building and on the outside of the floor slab, and is characterized in that it also includes a crossbar, a smoke detector, and a controller, wherein the crossbar is transversely arranged between two adjacent columns and fixed to the columns, the upper part of the crossbar is close to the bottom surface of the fireproof board corresponding to the upper floor slab, the interior of the crossbar is hollow and is equipped with a water spraying mechanism for spraying water at least downward and toward the inside of the curtain wall unit, and the smoke detector is installed in the building and electrically connected to the controller. The present application has the effect of improving the situation where smoke and flame spread too quickly due to the glass curtain wall.

Description

Technical Field

[0001] The present application relates to the technical field of glass curtain walls, and in particular to a fireproof and heat-insulating system applied to glass curtain walls. Background Art

[0002] Glass curtain wall is a beautiful and novel building wall. It is widely used in office buildings or commercial buildings because of its larger light transmission area and better lighting effect. Fire resistance is an important indicator of construction. In addition to selecting fire-resistant building materials, most building facilities will also make fire-resistant designs such as structure, and glass curtain wall is no exception.

[0003] The glass curtain wall is mainly composed of keels and curtain wall units. In order to block the flame and smoke from spreading from one floor to another through the gaps between the curtain wall units and between the curtain wall and the floor slabs in a fire, flame-retardant and fire-resistant sealing materials are arranged between the curtain wall units and between the floor slabs and the curtain wall as a fire-proof and heat-insulating design. However, there are shortcomings in relying solely on sealing materials for fire prevention. Whether it is the aging of the materials over time or the fire that lasts for a long time and has a high temperature, the above-mentioned fire-proof structure is relatively easy to be destroyed, resulting in the effect of blocking flames and smoke being affected. Therefore, the present application proposes a new technical solution. Summary of the invention

[0004] In order to improve the situation where smoke and flame spread too quickly due to glass curtain walls, the present application provides a fireproof and thermal insulation system applied to glass curtain walls.

[0005] The present application provides a fireproof and thermal insulation system for glass curtain walls, which adopts the following technical solutions:

[0006] A fireproof and heat-insulating system for glass curtain walls, comprising a keel, a curtain wall unit and a fireproof board, wherein the keel comprises a plurality of columns and beams fixed to the columns, the curtain wall unit is installed on the columns and the beams, the fireproof board is located on the side of the columns and the curtain wall unit facing the inside of the building and on the outside of the floor slab, and is characterized in that it also comprises a crossbar, a smoke detector and a controller, wherein the crossbar is transversely arranged between two adjacent columns and fixed to the columns, the upper part of the crossbar is close to the bottom surface of the fireproof board corresponding to the upper floor slab, the interior of the crossbar is hollow and is equipped with a water spraying mechanism for spraying water at least downward and toward the inside of the curtain wall unit, the smoke detector is installed in the building and electrically connected to the controller, the controller is electrically connected to the water spraying mechanism and is configured as follows:

[0007] If the detection signal fed back by the smoke detector meets the preset fire signal characteristics, the water spray mechanism will be activated.

[0008] Optionally, the water spray mechanism includes a plurality of nozzles and a first water pipe, the first water pipe is installed in the cross bar, the nozzle is embedded and installed at the bottom of the cross bar and connected to the first water pipe, the first water pipe passes through the keel and at least one end is used to connect to the water supply system, the water supply system includes a water storage and supply mechanism and a building daily water supply mechanism, the valve group of the water storage and supply mechanism is electrically connected to the controller, the valve group of the building daily water supply mechanism is electrically connected to the controller, the controller is electrically connected to a water pressure sensor, the probe of the water pressure sensor extends into the water inlet end of the first water pipe, and the controller is configured as follows:

[0009] If the detection signal fed back by the smoke detector meets the preset fire signal characteristics, the building's daily water supply mechanism will be controlled to supply water;

[0010] If the building's daily water supply mechanism is ordered to supply water and the feedback value of the water pressure sensor meets the preset water shortage detection information, the water storage and supply mechanism is controlled to supply water.

[0011] Optionally, each floor corresponds to at least two of the fireproof panels distributed up and down, and a water diversion mechanism is provided inside the fireproof panel located below, the water diversion mechanism includes a water diversion pipe dug in the fireproof panel, the water diversion pipe is meandering in the fireproof panel, a second water pipe is installed at the water inlet end of the water diversion pipe, the second water pipe is connected to the water supply system, a third water pipe is installed at the water outlet end of the water diversion pipe, and the third water pipe is connected to the first water pipe.

[0012] Optionally, a one-way valve is installed at one end of the second water pipe close to the water pipeline; the second water pipe is connected to a bypass pipe, and a flow-stop piston assembly is installed at one end of the side pipe away from the second water pipe, the flow-stop piston assembly includes a cylinder, an inner piston, a spring and an outer piston, and two opposite water holes are opened on the cylinder, and the third water pipe is connected to the first water pipe through the two water holes, the inner piston is located in the cylinder, one end of the inner piston is fixed with a piston rod, the piston rod extends out of the cylinder and extends into the side pipe, the outer piston is fixed to the end of the piston rod away from the inner piston and is adapted to the side pipe, the spring is sleeved on the piston rod, one end of the spring fixes the inner piston, and the other end fixes the cylinder; when the spring is in a natural state, the inner piston blocks the water hole.

[0013] Optionally, the water pipeline is connected to several pressure relief pipes, a section of the pressure relief pipe is vertical and the lower end is connected to the water pipeline, the other end of the pressure relief pipe is bent and extended to pass into the column, the top of the column is open and the lower side wall has air holes, the top opening of the column is provided with a water baffle, the side edges of the water baffle are folded upward to form a side plate, the water baffle has a rainwater outlet along the thickness direction, an electric control valve is installed in the rainwater outlet, the electric control valve is electrically connected to the controller, and the controller is configured as: if the detection signal fed back by the smoke detector meets the preset fire signal characteristics, the electric control valve is controlled to open.

[0014] Optionally, at least one section of the second water pipe is located obliquely below the side of the cross bar away from the curtain wall unit as a heat sensing section, the heat sensing section is installed with a water retaining assembly, and the joint of the bypass pipe and the second water pipe is located between the water retaining assembly and the water outlet end of the second water pipe;

[0015] The water retaining assembly comprises a heat conducting pipe body, a retaining plate and a filter screen, the heat conducting pipe body being connected to a side pipe and a second water supply pipe, the interior of the heat conducting pipe body being hollow, the retaining plate and the filter screen being located in the heat conducting pipe body and being distributed along the axial direction, the retaining plate being close to the water inlet end of the heat conducting pipe body, the filter screen being close to the water outlet end, the retaining plate and the filter screen being fixed in the heat conducting pipe body and their edges being in contact with the inner wall of the heat conducting pipe body, a round block being fixed in the heat conducting pipe body, the round block being fixed to the side of the retaining plate close to the water inlet end of the heat conducting pipe body, the edge of the round block being in contact with the inner wall of the heat conducting pipe body, a round hole being dug in the center of the round block for water flow to pass through, a round ball being abutted between the retaining plate and the fixed block, the round ball being abutted in the round hole.

[0016] Optionally, a water flow trough is dug on the side of the upper fireproof board close to the curtain wall unit of the two fireproof boards corresponding to each floor slab. The water flow trough is parallel to the curtain wall unit and is inclined. The upper fireproof board is hollow. A water inlet hole is dug at the downward end of the water flow trough to connect to the inner cavity of the waterproof board. The top surface of the inner cavity of the fireproof board is an inclined surface and the top surface close to the water inlet hole is higher.

[0017] Optionally, a dustproof sheet is provided above the water trough, one end of the dustproof sheet is flexibly connected to the fireproof plate and close to the end of the water trough away from the water inlet, and the other end is vacant, and the dustproof sheet is provided parallel to the cover on the water trough.

[0018] In summary, the present application includes the following beneficial technical effects: after applying the present system, if a fire occurs in a building and the fire spreads to the vicinity of the curtain wall unit, the controller can instruct the water spraying mechanism to spray water toward the inside of the curtain wall unit according to the feedback from the smoke detector, which, on the one hand, prevents the flame from burning the glass curtain wall and reduces the chance of its structural deformation and damage; on the other hand, the falling water falls on the fireproof board between the floor slab and the glass curtain wall to provide certain insulation and fire protection, thereby increasing the difficulty of damage under fire and improving the situation where smoke and flame spread too quickly due to the glass curtain wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of this application.

[0020] Figure 2 It is a schematic diagram of the structure of the water pipeline in this application;

[0021] Figure 3 is a cross-sectional view of a flow stop piston assembly in the present application;

[0022] Figure 4 It is a schematic diagram of the structure of the column in this application;

[0023] Figure 5 It is a schematic diagram of the structure of the fireproof board in this application;

[0024] Figure 6 It is a structural schematic diagram of the water retaining assembly in this application.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. fireproof board; 2. column; 3. beam; 4. crossbar; 5. water spraying mechanism; 11. water flow trough; 21. water retaining plate; 51. first water pipe; 52. nozzle; 6. water delivery mechanism; 61. water delivery pipeline; 62. second water pipe; 63. third water pipe; 64. one-way valve; 621. bypass pipe; 65. pressure relief pipe; 7. flow stop piston assembly; 71. cylinder; 72. inner piston; 73. spring; 74. outer piston; 75. water hole; 76. piston rod; 8. water retaining assembly; 81. heat transfer pipe body; 82. retaining plate; 83. filter screen; 84. round block; 85. ball. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-6 This application is described in further detail.

[0027] The embodiment of the present application discloses a fire-proof and heat-insulating system applied to curtain wall glass.

[0028] Reference Figure 1 The fireproof and heat-insulating system applied to the curtain wall glass includes a keel, a curtain wall unit, a fireproof board 1, a controller, and a smoke detector installed in the building. The keel includes a plurality of columns 2 and a crossbeam 3 fixed to the columns 2. The curtain wall unit is installed on the columns 2 and the crossbeam 3. The fireproof board 1 is parallel to the crossbeam 3. The fireproof board 1 is located on the side of the columns 2 and the curtain wall unit facing the inside of the building, and the fireproof board 1 is located on the outside of the floor. The crossbar 4 is fixed between every two adjacent columns 2, and the crossbar 4 is arranged parallel to the curtain wall unit, and the crossbar 4 is arranged close to the bottom surface of the fireproof board 1.

[0029] The interior of the cross bar 4 is hollow and is installed with a water spraying mechanism 5, which includes a first water pipe 51 installed in the cross bar 4 and a plurality of nozzles 52 embedded in the bottom of the cross bar 4. The nozzles 52 are connected to the first water pipe 51, and the nozzles 52 spray water at least downward or toward the inside of the curtain wall unit.

[0030] The water spray mechanism 5 is electrically connected to the controller, and the controller is electrically connected to the smoke detector. The controller is configured as follows:

[0031] If the detection signal fed back by the smoke detector meets the preset fire signal characteristics, the water spray mechanism 5 is activated.

[0032] The first water pipe 51 passes through the keel and is connected to a water supply system. The water supply system includes a water storage and supply mechanism and a city daily water supply mechanism, wherein the water storage and supply mechanism can be a water tower, and the city daily water supply mechanism can be a city water supply network, and both the water tower and the city water supply network are provided with water valves.

[0033] The valve groups of the water storage and water supply mechanism and the building daily water supply mechanism are electrically connected to the controller, and the controller is electrically connected to a water pressure sensor. The probe of the water pressure sensor extends into the water inlet end of the first water delivery pipe 51. The configuration of the controller is as follows:

[0034] If the detection signal fed back by the smoke detector meets the preset fire signal characteristics, the building's daily water supply mechanism will be controlled to supply water;

[0035] If the building's daily water supply mechanism is ordered to supply water and the feedback value of the water pressure sensor meets the preset water shortage detection information, the water storage and supply mechanism is controlled to supply water.

[0036] Among them, the controller controls the opening and closing of the water valves on the daily water supply mechanism and the water storage supply mechanism to control whether water is supplied. Two water supply systems are set up. When one of the water supply systems fails due to lack of water or other reasons, the first water supply system can be started to supply water.

[0037] Reference Figure 1 and Figure 2 Each floor slab has two fireproof boards 1 arranged in an upper and lower arrangement on the outside, and a water-conducting mechanism 6 is arranged inside the lower fireproof board 1. The water-conducting mechanism 6 includes a water-conducting pipeline 61 dug in the fireproof board 1, wherein the fireproof board 1 is divided into two half boards, and symmetrical grooves are dug in the two boards respectively, and the water-conducting pipeline 61 is formed by the grooves dug in the two boards.

[0038] The water pipeline 61 is arranged in a winding manner, and a second water pipe 62 is installed at the water inlet end of the water pipeline 61. A check valve 64 is installed at the second water pipe 62 near the water inlet end of the water pipeline 61. The check valve 64 can prevent water from flowing back into the second water pipe 62 when water flows. The second water pipe 62 is connected to the water supply system, and the water outlet end of the water pipeline 61 is connected to the third water pipe 63, and the third water pipe 63 is connected to the first water pipe 51.

[0039] Reference Figure 1 and Figure 3 The second water pipe 62 is connected with a bypass pipe 621 , which is located on the side of the one-way valve 64 away from the water pipeline 61 , and a flow-stop piston assembly 7 is installed at one end of the bypass pipe 621 away from the second water pipe 62 .

[0040] The flow-stop piston assembly 7 includes a cylinder 71, an inner piston 72, a spring 73 and an outer piston 74. Two opposite water holes 75 are provided on the cylinder 71. The third water pipe 63 and the first water pipe 51 are respectively connected to the two water holes 75, thereby connecting the third water pipe 63 and the first water pipe 51. The inner piston 72 slides in the cylinder 71. A piston rod 76 is fixed at one end of the inner piston 72. The piston rod 76 extends out of the cylinder 71. The other end of the piston rod 76 is fixed to the outer piston 74. The outer piston 74 is located outside the cylinder 71 and extends into the side pipe 621. The diameter of the outer piston 74 is adapted to the diameter of the inner wall of the side pipe 621. The spring 73 is sleeved on the outside of the piston rod 76, and one end is fixed to the inner piston 72, and the other end is fixed to the cylinder 71. When the spring 73 is in a natural state, the inner piston 72 blocks the water hole 75.

[0041] When a fire occurs, water can flow to the stop piston assembly 7 through the bypass pipe 621. With the impact of the water flow, the outer piston 74 is pushed toward the cylinder 71. The inner piston 72 is pushed open by the piston rod 76 connected between the inner piston 72 and the outer piston 74, so that the inner piston 72 no longer blocks the water hole 75 on the cylinder 71, thereby achieving the connection between the first water pipe 51 and the third water pipe 63, and then the water flowing in the water pipeline 61 can flow to the first water pipe 51 through the third water pipe 63 and finally be used for water spraying by the nozzle 52. Since the water flows continuously from the water pipeline 61, the flowing water in the water pipeline 61 can be kept in a cooling state forever, thereby better helping the fireproof board 1 to cool down and prevent fire.

[0042] Reference Figure 1 and Figure 4 A plurality of pressure relief pipes 65 are connected to the water pipe 61, and the pressure relief pipes 65 can help the water pipe 61 to discharge the gas evaporated by high temperature. The pressure relief pipe 65 is vertical and one end away from the water pipe 61 is bent and extended to penetrate into the column 2. The top of the column 2 is open, and the bottom side wall of the column 2 is also provided with vents. This arrangement helps air circulate in the column 2, so that water vapor is discharged from the column 2, and external air circulates in the column 2, which helps the column 2 to cool down and slow down the deformation of the column 2 due to high temperature.

[0043] A water retaining plate 21 is provided at the top opening of the column 2, the side of the water retaining plate 21 is folded upward to form a side plate, and a rainwater outlet is opened in the thickness direction of the water retaining plate 21, and an electric control valve is installed in the rainwater outlet, which can be an electric butterfly valve.

[0044] The electric control valve is electrically connected to the controller, and the controller is configured to control the electric control valve to open if the detection signal fed back by the smoke detector meets the preset signal characteristics of the fire. The rainwater outlet can allow rainwater to flow into the column 2, thereby further helping the column 2 to cool down.

[0045] Reference Figure 5A water flow channel 11 is dug on one side of the fireproof board 1 located above and close to the curtain wall unit. The water flow channel 11 is parallel to the curtain wall unit and is inclined. A water inlet hole is dug on the downward end of the water flow channel 11. The fireproof board 1 is hollow inside, and the water inlet hole is connected to the cavity inside the fireproof board 1. When the nozzle 52 sprays from above the floor, it can flow into the cavity inside the fireproof board 1 through the water inlet hole on the fireproof board 1, which helps to cool the fireproof board 1 located above and increase its fire prevention effect.

[0046] The top surface of the inner cavity of the fireproof board 1 is an inclined surface, and the top surface position near the water inlet is higher. When the temperature is too high to evaporate water vapor, it is conducive to the flow of water vapor. A dustproof sheet (not shown in the figure) is provided in parallel with the water trough 11. One end of the dustproof sheet is flexibly connected to the fireproof board 1, and the connection position is located at the end of the water trough 11 away from the water inlet, and the other end is set in the air. When water flows toward the fireproof board 1 from above, the dustproof sheet can be automatically bent by the gravity of the water itself, so that the water flows into the water trough 11. When there is no water, the dustproof sheet is provided in parallel with the water trough 11, which can prevent dust from falling into the water trough 11.

[0047] This application includes a second implementation mode:

[0048] Reference Figure 1 and Figure 6 The second water pipe 62 is provided with a heat sensing section, which is located obliquely below the side of the cross bar 4 away from the curtain wall unit. The heat sensing section is supported by a bracket below the heat sensing section. The heat sensing section is installed with a water retaining assembly 8, which is provided at the junction of the bypass pipe 621 and the second water pipe 62 and is located between the water outlet end of the second water pipe 62 and the water inlet end of the bypass pipe 621. When there is no fire, the flow stop piston assembly 7 at the water outlet end of the bypass pipe 621 can be kept in a closed state to cut off the communication between the first water pipe 51 and the third water pipe 63.

[0049] The water-blocking assembly 8 includes a heat-conducting pipe body 81, a baffle 82 and a filter screen 83. The heat-conducting pipe body 81 can be made of a heat-conducting metal material, such as copper. The heat-conducting pipe body is hollow inside and connected to the side pipe 621 and the second water pipe 62. The baffle 82 is arranged inside the heat-conducting pipe body 81. The baffle 82 is made of a fusible alloy material, such as an alloy made of elements such as lead, tin and cadmium. The diameter of the baffle 82 is equal to the inner wall of the heat-conducting pipe body 81. A round block 84 is provided on one side of the baffle 82 close to the water inlet end of the heat-conducting pipe body 81. The round block 84 is fixed to the heat-conducting pipe body 81 and the edge is attached to the inner wall of the heat-conducting pipe body 81. A round hole for water to pass through is opened in the center of the round block 84. A round ball 85 is abutted between the round block 84 and the baffle 82. The round ball 85 abuts against the round hole, thereby blocking the round hole and blocking the water flow.

[0050] A filter screen 83 is provided on one side of the baffle 82 close to the water outlet end of the heat-conducting pipe body 81. When the smoke detector detects the generation of smoke, the valve of the water supply system opens, and water flows to the heat-conducting pipe body 81. When the temperature at the scene is too high, the heat-conducting metal transfers heat to the fusible metal, so that the high temperature melts the baffle 82 made of the fusible metal. The ball 85 is not abutted by the baffle 82, is flushed away by the water flow, and is finally blocked by the filter screen 83. At the same time, the water flows through the heat-conducting pipe body 81 to the bypass pipe 621, impacting the outer piston 74 to push the inner piston 72 to move until it no longer blocks the water hole 75, so that the water flows through the third water pipe 63 to the first water pipe 51, so that the nozzle 52 starts spraying.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fireproof and heat-insulating system for a glass curtain wall, comprising a keel, a curtain wall unit and a fireproof board (1), wherein the keel comprises a plurality of columns (2) and beams (3) fixed to the columns (2), the curtain wall unit is mounted on the columns (2) and the beams (3), the fireproof board (1) is located on the side of the columns (2) and the curtain wall unit facing the interior of the building and on the outside of the floor slab, characterized in that: It also includes a crossbar (4), a smoke detector and a controller, wherein the crossbar (4) is transversely arranged between two adjacent columns (2) and fixed to the columns (2), the upper portion of the crossbar (4) is close to the bottom surface of the fireproof board (1) corresponding to the upper floor, the crossbar (4) is hollow inside and is equipped with a water spraying mechanism (5) for spraying water at least downward and toward the inner side of the curtain wall unit, the smoke detector is installed in the building and is electrically connected to the controller, and the controller is electrically connected to the water spraying mechanism (5) and is configured as follows: If the detection signal fed back by the smoke detector meets the preset fire signal characteristics, the water spray mechanism (5) is activated; The water spray mechanism (5) comprises a plurality of spray heads (52) and a first water pipe (51), wherein the first water pipe (51) is installed in the cross bar (4), the spray head (52) is embedded and installed at the bottom of the cross bar (4) and is connected to the first water pipe (51), the first water pipe (51) passes through the keel and at least one end is used to connect to a water supply system, the water supply system comprises a water storage and supply mechanism and a building daily water supply mechanism, the valve group of the water storage and supply mechanism is electrically connected to a controller, the valve group of the building daily water supply mechanism is electrically connected to the controller, the controller is electrically connected to a water pressure sensor, the probe of the water pressure sensor extends into the water inlet end of the first water pipe (51), and the controller is configured as follows: If the detection signal fed back by the smoke detector meets the preset fire signal characteristics, the building's daily water supply mechanism will be controlled to supply water; If the building daily water supply mechanism is ordered to supply water and the feedback value of the water pressure sensor meets the preset water shortage detection information, the water storage and supply mechanism is controlled to supply water; Each floor slab corresponds to at least two fireproof panels (1) distributed up and down, and a water discharge mechanism (6) is provided inside the fireproof panel (1) located at the bottom, the water discharge mechanism (6) comprising a water discharge pipeline (61) dug inside the fireproof panel (1), the water discharge pipeline (61) being arranged in a winding manner inside the fireproof panel (1), a second water delivery pipe (62) being installed at the water inlet end of the water discharge pipeline (61), the second water delivery pipe (62) being connected to a water supply system, and a third water delivery pipe (63) being installed at the water outlet end of the water discharge pipeline (61), the third water delivery pipe (63) being connected to the first water delivery pipe (51); A one-way valve (64) is installed at one end of the second water supply pipe (62) close to the water pipeline (61); the second water supply pipe (62) is connected to a bypass pipe (621); a flow-stopping piston assembly (7) is installed at one end of the bypass pipe (621) away from the second water supply pipe (62); the flow-stopping piston assembly (7) comprises a cylinder (71), an inner piston (72), a spring (73) and an outer piston (74); two opposing water holes (75) are formed on the cylinder (71); the third water supply pipe (63) is connected to the first water supply pipe (61) through the two water holes (75); A water delivery pipe (51), wherein the inner piston (72) is located in a cylinder (71), one end of the inner piston (72) is fixed with a piston rod (76), the piston rod (76) extends out of the cylinder (71) and extends into a side pipe (621), the outer piston (74) is fixed to an end of the piston rod (76) away from the inner piston (72) and is adapted to the side pipe (621), the spring (73) is sleeved with the piston rod (76) and one end is fixed to the inner piston (72) and the other end is fixed to the cylinder (71); when the spring (73) is in a natural state, the inner piston (72) blocks the water through hole (75).

2. The fireproof and thermal insulation system for glass curtain wall according to claim 1 is characterized in that: The water pipe (61) is connected to a plurality of pressure relief pipes (65). A section of the pressure relief pipe (65) is vertical and connected to the water pipe (61) at the lower end. The other end of the pressure relief pipe (65) is bent and then extends and is passed into the column (2). The top of the column (2) is open and the lower side wall is provided with a vent. The top opening of the column (2) is provided with a water baffle (21). The side of the water baffle (21) is folded upward to form a side plate. The water baffle (21) is provided with a rainwater outlet along the thickness direction. An electric control valve is installed in the rainwater outlet. The electric control valve is electrically connected to a controller. The controller is configured to control the electric control valve to open if the detection signal fed back by the smoke detector meets the preset signal characteristics of a fire situation.

3. The fireproof and thermal insulation system for glass curtain wall according to claim 2 is characterized in that: At least one section of the second water pipe (62) is located obliquely below the side of the cross bar (4) away from the curtain wall unit as a heat sensing section, the heat sensing section is installed with a water retaining assembly (8), and the joint between the side pipe (621) and the second water pipe (62) is located between the water retaining assembly (8) and the water outlet end of the second water pipe (62); The water retaining assembly (8) comprises a heat conducting pipe body (81), a retaining plate (82) and a filter screen (83); the heat conducting pipe body (81) is connected to the side pipe (621) and the second water supply pipe (62); the heat conducting pipe body (81) is hollow inside; the retaining plate (82) and the filter screen (83) are located inside the heat conducting pipe body (81) and are distributed along the axial direction; the retaining plate (82) is close to the water inlet end of the heat conducting pipe body (81); the filter screen (83) is close to the water outlet end; the retaining plate (82) and the filter screen (83) are connected to each other. The heat conducting pipe body (81) is fixed with its edge in contact with the inner wall of the heat conducting pipe body (81). A round block (84) is fixed inside the heat conducting pipe body (81). The round block (84) is fixed to the side of the baffle (82) close to the water inlet end of the heat conducting pipe body (81). The edge of the round block (84) is in contact with the inner wall of the heat conducting pipe body (81). A round hole for water flow to pass through is dug in the center of the round block (84). A round ball (85) is abutted between the baffle (82) and the fixed block. The round ball (85) abuts in the round hole.

4. The fireproof and thermal insulation system for glass curtain wall according to claim 1 is characterized in that: Of the two fireproof panels (1) corresponding to each floor slab, the upper fireproof panel (1) is provided with a water flow channel (11) on one side close to the curtain wall unit. The water flow channel (11) is parallel to the curtain wall unit and is arranged obliquely. The upper fireproof panel (1) is hollow. A water inlet hole is provided at the downward end of the water flow channel (11) to communicate with the inner cavity of the waterproof panel. The inner cavity top surface of the fireproof panel (1) is an inclined surface and the top surface close to the water inlet hole is at a higher position.

5. The fireproof and thermal insulation system for glass curtain wall according to claim 4 is characterized in that: A dustproof sheet is provided above the water trough (11), one end of the dustproof sheet is flexibly connected to the fireproof plate (1) and is close to the end of the water trough (11) away from the water inlet hole, and the other end is vacant. The dustproof sheet is provided parallel to the water trough (11).

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