Ventilation system for rail transit subway construction

Abstract

The invention discloses a ventilation system for rail transit subway construction, and particularly relates to the technical field of ventilation systems.The ventilation system comprises an air exhaust assembly, the air exhaust assembly comprises multiple sections of air conveying pipelines, an air inlet is fixedly formed in one side of the bottom of each air conveying pipeline, and an air outlet is formed in the other side of the bottom of each air conveying pipeline; an auxiliary exhaust port is fixedly installed on the side, away from the air inlet, of the bottom of the air conveying pipeline, and a first valve is fixedly installed at the end, close to the auxiliary exhaust port, of the air conveying pipeline. Wall scraping cleaning can be conducted on dust on the inner walls of the connecting bent pipe and the air conveying pipeline, meanwhile, the dust subjected to wall scraping cleaning is discharged through an independent waste discharging channel and subjected to dust removal treatment, and the situation that the dust is accumulated for a long time and influences the air body environment in the rail transit subway is prevented; and the connecting bent pipe and the air conveying pipeline do not need to be disassembled for deep cleaning through a special cleaning tool, and simplicity and convenience are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation systems, and specifically relates to a ventilation system for rail transit subway construction. Background Art

[0002] Rail transit subway is an urban rapid public transportation system that mainly operates in cities and their suburbs, and plays an important role in alleviating urban traffic pressure, enhancing urban functions, and the convenience of residents' travel. The existing ventilation systems for rail transit subway construction mainly include a fresh air system, an exhaust air system, an emergency ventilation system, and a local ventilation system. The system is mostly assembled with ventilation pipes to form a ventilation duct. However, due to the long-term transmission of air by the ventilation pipes, dust in the air will adhere to the inner wall of the pipes. The long-term accumulation will have a certain impact on the air environment in the rail transit subway. Therefore, cleaning personnel are required to clean regularly. During cleaning, it is mostly necessary to stop the machine and disassemble the pipes, and use special cleaning tools for in-depth cleaning, which is rather troublesome. For this reason, we propose a ventilation system for rail transit subway construction to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a ventilation system for rail transit subway construction to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A ventilation system for rail transit subway construction, including an exhaust air component. The exhaust air component includes an air transmission pipeline. The air transmission pipeline has multiple sections. One side of the bottom of the air transmission pipeline is fixedly installed with an air inlet. On the side of the bottom of the air transmission pipeline away from the air inlet, a secondary exhaust port is fixedly installed. One end of the air transmission pipeline close to the secondary exhaust port is fixedly installed with a first valve. One end of the first valve away from the air transmission pipeline is fixedly installed with a first fan. The bottom end of the secondary exhaust port is fixedly installed with a second valve. The bottom end of the second valve is fixedly installed with an L-shaped pipeline. One end of the L-shaped pipeline away from the second valve is fixedly installed with a dust removal member. One end of the dust removal member away from the L-shaped pipeline is fixedly installed with a second fan. One end of the second fan away from the dust removal member is fixedly installed with a secondary exhaust pipeline. One end of the secondary exhaust pipeline away from the second fan is fixedly installed with a treatment mechanism. A connecting elbow is fixedly installed between two adjacent sections of the air transmission pipeline at the turning position. The end of multiple sections of the air transmission pipeline 1 is provided with an exhaust tail pipe, and the exhaust tail pipe is fixedly installed at the end of the first fan.

[0005] Preferably, one end of the connecting elbow is fixedly installed with a first bracket, and the other end of the connecting elbow is fixedly installed with a second bracket. A first shaft is rotatably installed at the bottom of the first bracket. The first shaft is located at the axis position of the connecting elbow. First mounting rods are fixedly installed at both outer ends of the first shaft. A first scraping strip is vertically installed at the end of the first mounting rod. A second shaft is rotatably installed at the bottom of the second bracket. The second shaft is located at the axis position of the connecting elbow. The first shaft and the second shaft are vertically distributed. Second mounting rods are fixedly installed at both outer ends of the second shaft. A second scraping strip is vertically installed at the end of the second mounting rod. The outer sides of the first scraping strip and the second scraping strip are in contact with the inner wall of the connecting elbow.

[0006] Preferably, a first auxiliary shaft is fixedly installed at one end of the first shaft close to the second shaft, and a second auxiliary shaft is fixedly installed at one end of the second shaft close to the first shaft. The end of the second auxiliary shaft away from the second shaft is rotatably installed on the connecting elbow. First bevel gears are fixedly installed on the outer sides of both the end of the first auxiliary shaft away from the first shaft and the second auxiliary shaft. The two first bevel gears are meshed and connected. A first motor is fixedly installed at one end of the outer wall of the connecting elbow close to the second auxiliary shaft. The first motor is fixedly installed at the shaft end of the second auxiliary shaft.

[0007] Preferably, third brackets are fixedly installed on both inner wall sides of the air delivery pipeline. A third shaft is rotatably installed at the bottom of the third bracket. A plurality of third mounting rods are fixedly installed on the outer side of the third shaft. A third scraping strip is vertically installed at the end of each of the plurality of third mounting rods. The outer side of the third scraping strip is in contact with the inner wall of the connecting elbow.

[0008] Preferably, connecting clamping protrusions are fixedly installed at the ends of the first shaft and the second shaft away from the first bevel gears. The connecting clamping protrusions are movably clamped at the ends of the corresponding third shafts.

[0009] Preferably, an air inlet pipe is fixedly installed at the bottom end of the air inlet. A hollow cover is fixedly installed at the bottom end of the air inlet pipe.

[0010] Preferably, the first valve includes a valve frame. The two end portions of the valve frame are respectively fixedly installed between the air delivery pipeline and the first blower. A spherical valve core is movably clamped in the middle of the valve frame. A valve rod is vertically installed in the middle of the spherical valve core. The valve rod is rotatably installed on the valve frame. A through groove is horizontally opened in the middle of the spherical valve core. One end of the valve rod extends out of the outer side of the valve frame and is fixedly installed with a second bevel gear.

[0011] Preferably, the structure of the second valve is the same as that of the first valve. The second valve is fixedly installed between the auxiliary exhaust port and the L-shaped pipe through both ends of the valve frame. In the first valve, the through groove communicates with both ends of the valve frame. In the second valve, the through groove does not communicate with both ends of the valve frame. The second bevel gears in the first valve and the second valve are meshed and connected. At the top end of the valve frame in the first valve, a second motor is fixedly installed, and the driving end of the second motor is fixedly installed with the top end of the corresponding valve rod.

[0012] Preferably, the dust removal member includes a dust removal outer frame, which is fixedly installed between the L-shaped pipe and the second fan, and a plurality of dust removal cloth bags are fixedly installed in the dust removal outer frame.

[0013] Preferably, the treatment mechanism includes a treatment outer cylinder. On one side of the top of the treatment outer cylinder, a liquid inlet pipe is fixedly installed, and a liquid inlet valve is fixedly installed on the liquid inlet pipe. On one side of the bottom end of the treatment outer cylinder, a liquid discharge pipe is fixedly installed, and a liquid discharge valve is fixedly installed on the liquid discharge pipe. On one side of the top end of the treatment outer cylinder, an exhaust port is fixedly installed, and an exhaust pipe is fixedly installed at the end of the exhaust port. On the other side of the top end of the treatment outer cylinder, an air inlet pipe is fixedly installed. One end of the air inlet pipe is fixedly installed at one end of the auxiliary exhaust pipe away from the second fan. The end of the air inlet pipe away from the auxiliary exhaust pipe extends into the treatment outer cylinder and is fixedly installed with an exhaust cylinder, and a plurality of uniformly distributed exhaust through grooves are formed on the exhaust cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting the exhaust air assembly, the exhaust of air in the rail transit subway can be carried out through the use of the exhaust air channel, and the dust on the inner walls of the connecting elbow and the air delivery pipe can be scraped and cleaned. At the same time, the dust scraped and cleaned is discharged through a separate waste discharge channel and subjected to dust removal treatment, preventing the dust from accumulating for a long time and affecting the air environment in the rail transit subway. Moreover, there is no need to disassemble the connecting elbow and the air delivery pipe and use special cleaning tools for in-depth cleaning, which is simple and convenient.

[0015] 2. By setting the exhaust air assembly, when a fire occurs and smoke appears in the rail transit subway, the smoke can be discharged in time through a separate waste discharge channel and subjected to smoke treatment, preventing the smoke from being directly discharged and affecting the atmospheric environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only 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.

[0017] Figure 1 This is a schematic structural diagram of the present invention.

[0018] Figure 2 This is a connection schematic diagram after splitting a part of the structure in the present invention.

[0019] Figure 3 This is the present invention Figure 2 An enlarged view of part A in it.

[0020] Figure 4 This is the present invention Figure 2 An enlarged view of part B in it.

[0021] Figure 5 This is the present invention Figure 2 An enlarged view of part C in it.

[0022] Figure 6 This is a connection schematic diagram after splitting a part of the structure in the present invention.

[0023] Figure 7 This is a structural connection schematic diagram of the processing mechanism in the present invention.

[0024] In the figure: 1, air delivery pipeline; 2, first valve; 3, first fan; 4, second valve; 5, L-shaped pipeline; 6, dust removal member; 7, second fan; 71, auxiliary exhaust pipeline; 8, processing mechanism; 11, air inlet; 12, auxiliary exhaust port; 13, connecting elbow; 14, exhaust tail pipe; 131, first bracket; 132, second bracket; 133, first shaft; 1331, first mounting rod; 1332, first scraping strip; 134, second shaft; 1341, second mounting rod; 1342, second scraping strip; 1343, connecting convex; 135, first auxiliary shaft; 136, second auxiliary shaft; 137, first bevel gear; 138, first motor; 101, third bracket; 102, third shaft; 103, third mounting rod; 104, third scraping strip; 111, air inlet pipe; 112, hollow cover; 21, valve frame; 22, spherical valve core; 23, valve rod; 24, second bevel gear; 25, second motor; 221, through groove; 61, dust removal outer frame; 62, dust removal cloth bag; 81, processing outer cylinder; 82, liquid inlet pipe; 821, liquid inlet valve; 83, liquid discharge pipe; 831, liquid discharge valve; 84, exhaust port; 841, exhaust pipeline; 85, intake pipeline; 86, exhaust cylinder; 861, exhaust through groove. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Example: As Figure 1-7 shown, the present invention provides a ventilation system for rail transit subway construction, including an exhaust component. The exhaust component includes an air delivery pipeline 1, which has multiple sections. According to the requirements of rail transit subway construction, multiple sections of the air delivery pipeline 1 are laid. An air inlet 11 is fixedly installed on one side of the bottom of the air delivery pipeline 1. The air in the rail transit subway is sucked into the multiple sections of the air delivery pipeline 1 through the air inlet 11. A secondary exhaust port 12 is fixedly installed on the side of the bottom of the air delivery pipeline 1 away from the air inlet 11. A first valve 2 is fixedly installed at one end of the air delivery pipeline 1 close to the secondary exhaust port 12. One end of the first valve 2 away from the air delivery pipeline 1 is fixedly installed with a first fan 3. A second valve 4 is fixedly installed at the bottom end of the secondary exhaust port 12. A second valve 4 is fixedly installed at the bottom end of an L-shaped pipeline 5. One end of the L-shaped pipeline 5 away from the second valve 4 is fixedly installed with a dust removal component 6. One end of the dust removal component 6 away from the L-shaped pipeline 5 is fixedly installed with a second fan 7. One end of the secondary exhaust pipeline 71 away from the second fan 7 is fixedly installed with a treatment mechanism 8. A connecting elbow 13 is fixedly installed between two adjacent sections of the air delivery pipeline 1 at the turning position. An exhaust tail pipe 14 is provided at the end of the multiple sections of the air delivery pipeline 1, and the exhaust tail pipe 14 is fixedly installed at the end of the first fan 3.

[0027] One end of the connecting elbow 13 is fixedly installed with a first bracket 131, and the other end of the connecting elbow 13 is fixedly installed with a second bracket 132. A first shaft 133 is rotatably installed at the bottom of the first bracket 131. The first shaft 133 is located at the axis position of the connecting elbow 13. Two outer ends of the first shaft 133 are fixedly installed with first mounting rods 1331. A first scraping strip 1332 is vertically installed at the end of the first mounting rod 1331. A second shaft 134 is rotatably installed at the bottom of the second bracket 132. The second shaft 134 is located at the axis position of the connecting elbow 13. The first shaft 133 and the second shaft 134 are vertically distributed. Two outer ends of the second shaft 134 are fixedly installed with second mounting rods 1341. A second scraping strip 1342 is vertically installed at the end of the second mounting rod 1341. The outer sides of the first scraping strip 1332 and the second scraping strip 1342 are in contact with the inner wall of the connecting elbow 13. By controlling the rotation of the first shaft 133, the first mounting rod 1331 and the first scraping strip 1332 are driven to rotate, so as to clean the inner wall of the connecting elbow 13 by the first scraping strip 1332. By controlling the rotation of the second shaft 134, the second mounting rod 1341 and the second scraping strip 1342 are driven to rotate, so as to clean the inner wall of the connecting elbow 13 by the second scraping strip 1342; One end of the first shaft 133 close to the second shaft 134 is fixedly installed with a first auxiliary shaft 135. One end of the second shaft 134 close to the first shaft 133 is fixedly installed with a second auxiliary shaft 136. One end of the second auxiliary shaft 136 away from the second shaft 134 is rotatably installed on the connecting elbow 13. A first bevel gear 137 is fixedly installed on the outside of one end of the first auxiliary shaft 135 away from the first shaft 133 and the second auxiliary shaft 136. The two first bevel gears 137 are meshed and connected. One end of the outer wall of the connecting elbow 13 close to the second auxiliary shaft 136 is fixedly installed with a first motor 138. The first motor 138 is fixedly installed at the shaft end of the second auxiliary shaft 136. By turning on the first motor 138 to drive the second auxiliary shaft 136 to rotate, and cooperating with the meshing connection of the two first bevel gears 137, the first auxiliary shaft 135 is driven to rotate synchronously, and then the first shaft 133 and the second shaft 134 are driven to rotate synchronously.

[0028] Both sides of the inner wall of the air delivery pipe 1 are fixedly installed with third brackets 101. The bottom of the third bracket 101 is rotatably installed with a third shaft 102. A plurality of third mounting rods 103 are fixedly installed on the outside of the third shaft 102. The ends of the plurality of third mounting rods 103 are vertically installed with third scraping strips 104. The outside of the third scraping strip 104 is in contact with the inner wall of the connecting elbow 13. By controlling the rotation of the third shaft 102, a plurality of third mounting rods 103 and the third scraping strips 104 are driven to rotate, so as to clean the inner wall of the air delivery pipe 1 by the third scraping strips 104.

[0029] Connecting convexes 1343 are fixedly installed at the ends of the first shaft 133 and the second shaft 134 away from the first bevel gear 137. The connecting convexes 1343 are movably clamped at the ends of the corresponding third shafts 102. By providing the connecting convexes 1343, the connecting convexes 1343 are movably clamped at the ends of the corresponding third shafts 102. When the first shaft 133 and the second shaft 134 rotate, the corresponding third shafts 102 in the air delivery pipe 1 are driven to rotate synchronously.

[0030] The bottom end of the air inlet 11 is fixedly installed with an air inlet pipe 111. The bottom end of the air inlet pipe 111 is fixedly installed with a hollow cover 112. The air in the rail transit subway is inhaled into the multi-section air delivery pipe 1 through the hollow cover 112, the air inlet pipe 111 and the air inlet 11. By disassembling the hollow cover 112, it is convenient to clean the inner walls of the air inlet pipe 111 and the air inlet 11.

[0031] The first valve 2 includes a valve frame 21. The two end portions of the valve frame 21 are respectively fixedly installed between the air delivery pipeline 1 and the first blower 3. A spherical valve core 22 is movably clamped in the middle of the valve frame 21. A valve rod 23 is vertically installed in the middle of the spherical valve core 22. The valve rod 23 is rotatably installed on the valve frame 21. A through groove 221 is horizontally opened in the middle of the spherical valve core 22. One end of the valve rod 23 extends out of the outside of the valve frame 21 and is fixedly installed with a second bevel gear 24. By controlling the rotation of the valve rod 23, the spherical valve core 22 is driven to rotate in the middle of the valve frame 21, so that the through groove 221 communicates with the two end portions of the valve frame 21. By continuously controlling the rotation of the valve rod 23, the spherical valve core 22 is driven to continue to rotate in the middle of the valve frame 21, so that the through groove 221 and the two end portions of the valve frame 21 are not communicated.

[0032] The structure of the second valve 4 is the same as that of the first valve 2. The two end portions of the second valve 4 are respectively fixedly installed between the auxiliary exhaust port 12 and the L-shaped pipeline 5 through the valve frame 21. In the initial state, the through groove 221 in the first valve 2 communicates with the two ends of the valve frame 21, and the through groove 221 in the second valve 4 does not communicate with the two ends of the valve frame 21; The second bevel gears 24 in the first valve 2 and the second valve 4 are meshed and connected. The top end of the valve frame 21 in the first valve 2 is fixedly installed with a second motor 25. The driving end of the second motor 25 is fixedly installed with the top end of the corresponding valve rod 23. By starting the second motor 25 to drive the valve rod 23 in the first valve 2 to rotate, and cooperating with the meshing connection of the two second bevel gears 24, the valve rod 23 in the second valve 4 is driven to rotate synchronously, so as to drive the spherical valve cores 22 in the first valve 2 and the second valve 4 to rotate in the middle of the valve frame 21, and further make the through groove 221 in the first valve 2 not communicate with the two ends of the valve frame 21, and the through groove 221 in the second valve 4 communicates with the two ends of the valve frame 21.

[0033] The dust removal member 6 includes a dust removal outer frame 61. The dust removal outer frame 61 is fixedly installed between the L-shaped pipeline 5 and the second blower 7. A plurality of dust removal cloth bags 62 are fixedly installed in the dust removal outer frame 61. When cleaning the dust on the inner wall of the multi-section air delivery pipeline 1, the dust in the exhaust air is introduced into the dust removal outer frame 61 through the auxiliary exhaust port 12, the second valve 4 and the L-shaped pipeline 5, and is dust-removed through a plurality of dust removal cloth bags 62. Subsequently, the exhaust air is introduced into the treatment mechanism 8 through the second blower 7 and the auxiliary exhaust pipeline 71.

[0034] The treatment mechanism 8 includes a treatment outer cylinder 81. One side at the top of the treatment outer cylinder 81 is fixedly installed with a liquid inlet pipe 82, and a liquid inlet valve 821 is fixedly installed on the liquid inlet pipe 82. By opening the liquid inlet valve 821, the flue gas treatment liquid is introduced into the treatment outer cylinder 81 through the liquid inlet pipe 82. One side at the bottom end of the treatment outer cylinder 81 is fixedly installed with a liquid discharge pipe 83, and a liquid discharge valve 831 is fixedly installed on the liquid discharge pipe 83. One side at the top end of the treatment outer cylinder 81 is fixedly installed with an exhaust port 84, and an exhaust pipe 841 is fixedly installed at the end of the exhaust port 84. The other side at the top end of the treatment outer cylinder 81 is fixedly installed with an intake pipe 85. One end of the intake pipe 85 is fixedly installed at the end of the auxiliary exhaust pipe 71 away from the second fan 7. The end of the intake pipe 85 away from the auxiliary exhaust pipe 71 extends into the treatment outer cylinder 81 and is fixedly installed with an exhaust cylinder 86. A plurality of uniformly distributed exhaust through slots 861 are formed on the exhaust cylinder 86. The exhaust air introduced into the treatment mechanism 8 is introduced into the exhaust cylinder 86 through the intake pipe 85, and is uniformly discharged into the flue gas treatment liquid through the plurality of exhaust through slots 861 for flue gas treatment. The treated flue gas is discharged through the exhaust port 84 and the exhaust pipe 841, preventing the direct discharge of flue gas from affecting the atmospheric environment. When the flue gas treatment liquid needs to be discharged, by opening the liquid discharge valve 831, the flue gas treatment liquid is discharged through the liquid discharge pipe 83.

[0035] Working principle: During use, multiple sections of air delivery pipes 1 are laid according to the construction requirements of rail transit subways, and the paths of the multiple sections of air delivery pipes 1 are designed. A connecting elbow 13 is fixedly installed between two adjacent sections of air delivery pipes 1 at the turning position, and the connecting convex 1343 is movably clamped at the end of the corresponding third shaft 102. By opening the liquid inlet valve 821, the flue gas treatment liquid is introduced into the treatment outer cylinder 81 through the liquid inlet pipe 82; In the initial state, the through slot 221 in the first valve 2 and the two ends of the valve frame 21 are in communication with each other, and the through slot 221 in the second valve 4 and the two ends of the valve frame 21 are not in communication; Subsequently, using multiple first fans 3 in the exhaust air assembly, the air in the rail transit subway is inhaled into the multiple sections of air delivery pipes 1 through multiple hollow covers 112, air inlet pipes 111, and air inlets 11, and is discharged through the exhaust tail pipe 14 for exhausting the air in the rail transit subway; After using for a period of time, a relatively large amount of dust will adhere to the inner walls of the multiple sections of air delivery pipes 1, the air inlets 11, and the connecting elbows 13. At this time, by starting the second motor 25 to drive the valve stem 23 in the first valve 2 to rotate, and cooperating with the meshing connection of the two second bevel gears 24, the valve stem 23 in the second valve 4 is driven to rotate synchronously, thereby driving the spherical valve cores 22 in the first valve 2 and the second valve 4 to rotate in the middle of the valve frame 21, and further making the through slot 221 in the first valve 2 and the two ends of the valve frame 21 not in communication, and the through slot 221 in the second valve 4 and the two ends of the valve frame 21 are in communication with each other, the waste discharge channel is opened, and the exhaust air channel is closed; Subsequently, by starting the first motor 138 to drive the second auxiliary shaft 136 to rotate, cooperating with the meshing connection of the two first bevel gears 137, the first auxiliary shaft 135 is driven to rotate synchronously, and then the first shaft 133 and the second shaft 134 are driven to rotate synchronously. When the first shaft 133 and the second shaft 134 rotate, the corresponding third shaft 102 in the air supply duct 1 is driven to rotate synchronously. By controlling the rotation of the first shaft 133, the first mounting rod 1331 and the first scraping strip 1332 are driven to rotate, so that the inner wall of the connecting elbow 13 is cleaned by scraping the dust by the first scraping strip 1332. By controlling the rotation of the second shaft 134, the second mounting rod 1341 and the second scraping strip 1342 are driven to rotate, so that the inner wall of the connecting elbow 13 is cleaned by scraping the dust by the second scraping strip 1342. By controlling the rotation of the third shaft 102, a plurality of third mounting rods 103 and third scraping strips 104 are driven to rotate, so that the inner wall of the air supply duct 1 is cleaned by scraping the dust by the third scraping strips 104; Meanwhile, start the second blower 7. The dust scraped from the inner walls of the connecting elbow 13 and the air supply duct 1 is introduced into the dust removal outer frame 61 through the auxiliary exhaust port 12, the second valve 4 and the L-shaped duct 5, and is subjected to dust removal treatment by a plurality of dust removal bags 62. Subsequently, the exhaust air is introduced into the treatment mechanism 8 through the second blower 7 and the auxiliary exhaust duct 71, for automatic cleaning of the dust on the inner walls of the connecting elbow 13 and the air supply duct 1, preventing the dust from accumulating for a long time and affecting the air environment in the rail transit subway, and there is no need to disassemble the connecting elbow 13 and the air supply duct 1 and use special cleaning tools for in-depth cleaning, which is simple and convenient; By disassembling the hollow cover 112, it is convenient to clean the inner walls of the air inlet pipe 111 and the air inlet 11; Among them, when there is smoke in case of a fire in the rail transit subway, directly start the second blower 7. The smoke is inhaled into the multi-section air supply duct 1 through the corresponding air inlet 11, and is introduced into the dust removal outer frame 61 through the auxiliary exhaust port 12, the second valve 4 and the L-shaped duct 5, and is subjected to dust removal treatment by a plurality of dust removal bags 62. Subsequently, the exhaust air is introduced into the treatment mechanism 8 through the second blower 7 and the auxiliary exhaust duct 71. The exhaust air introduced into the treatment mechanism 8 is introduced into the exhaust chimney 86 through the air inlet duct 85, and is evenly discharged into the flue gas treatment liquid through a plurality of exhaust slots 861 for flue gas treatment. The treated flue gas is discharged through the exhaust port 84 and the exhaust duct 841, preventing the direct discharge of the flue gas from affecting the atmospheric environment. When the flue gas treatment liquid needs to be discharged, by opening the drain valve 831, the flue gas treatment liquid is discharged through the drain pipe 83.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation system for rail transit subway construction, including an exhaust component, characterized in that: The exhaust component includes an air delivery pipe (1), which has multiple sections. On one side of the bottom of the air delivery pipe (1), an air inlet (11) is fixedly installed. On the side of the bottom of the air delivery pipe (1) away from the air inlet (11), an auxiliary exhaust port (12) is fixedly installed. At one end of the air delivery pipe (1) close to the auxiliary exhaust port (12), a first valve (2) is fixedly installed. At the end of the first valve (2) away from the air delivery pipe (1), a first fan (3) is fixedly installed. At the bottom end of the auxiliary exhaust port (12), a second valve (4) is fixedly installed. At the bottom end of the second valve (4), an L-shaped pipe (5) is fixedly installed. At the end of the L-shaped pipe (5) away from the second valve (4), a dust removal member (6) is fixedly installed. At the end of the dust removal member (6) away from the L-shaped pipe (5), a second fan (7) is fixedly installed. At the end of the second fan (7) away from the dust removal member (6), an auxiliary exhaust pipe (71) is fixedly installed. At the end of the auxiliary exhaust pipe (71) away from the second fan (7), a treatment mechanism (8) is fixedly installed. A connecting elbow (13) is fixedly installed between two adjacent sections of the air delivery pipe (1) at the turning position. At the end of multiple sections of the air delivery pipe (1), an exhaust tail pipe (14) is provided, and the exhaust tail pipe (14) is fixedly installed at the end of the first fan (3).

2. The ventilation system for rail transit subway construction according to claim 1, characterized in that: One end of the connecting elbow (13) is fixedly installed with a first bracket (131), and the other end of the connecting elbow (13) is fixedly installed with a second bracket (132). At the bottom of the first bracket (131), a first shaft (133) is rotatably installed. The first shaft (133) is located at the axis position of the connecting elbow (13). At both outer ends of the first shaft (133), first mounting rods (1331) are fixedly installed. At the end of the first mounting rod (1331), a first scraping strip (1332) is vertically installed. At the bottom of the second bracket (132), a second shaft (134) is rotatably installed. The second shaft (134) is located at the axis position of the connecting elbow (13). The first shaft (133) and the second shaft (134) are vertically distributed. At both outer ends of the second shaft (134), second mounting rods (1341) are fixedly installed. At the end of the second mounting rod (1341), a second scraping strip (1342) is vertically installed. The outer sides of the first scraping strip (1332) and the second scraping strip (1342) are in contact with the inner wall of the connecting elbow (13).

3. A ventilation system for rail transit subway construction according to claim 2, characterized in that: One end of the first shaft (133) close to the second shaft (134) is fixedly installed with a first auxiliary shaft (135). One end of the second shaft (134) close to the first shaft (133) is fixedly installed with a second auxiliary shaft (136). One end of the second auxiliary shaft (136) away from the second shaft (134) is rotatably installed on the connecting elbow (13). One end of the first auxiliary shaft (135) away from the first shaft (133) and the outer sides of the second auxiliary shaft (136) are both fixedly installed with first bevel gears (137). The two first bevel gears (137) are meshed and connected. One end of the outer wall of the connecting elbow (13) close to the second auxiliary shaft (136) is fixedly installed with a first motor (138). The first motor (138) is fixedly installed at the shaft end of the second auxiliary shaft (136).

4. The ventilation system for rail transit subway construction according to claim 3, characterized in that: Both sides of the inner wall of the air delivery pipe (1) are fixedly installed with third brackets (101). The bottom of the third bracket (101) is rotatably installed with a third shaft (102). A plurality of third mounting rods (103) are fixedly installed on the outer side of the third shaft (102). Third scraping strips (104) are vertically installed at the ends of the plurality of third mounting rods (103). The outer sides of the third scraping strips (104) are in contact with the inner wall of the connecting elbow (13).

5. The ventilation system for rail transit subway construction according to claim 4, characterized in that: One end of the first shaft (133) and the second shaft (134) away from the first bevel gear (137) are both fixedly installed with connecting clamping protrusions (1343). The connecting clamping protrusions (1343) are movably clamped at the ends of the corresponding third shafts (102).

6. The ventilation system for rail transit subway construction according to claim 1, characterized in that: The bottom end of the air inlet (11) is fixedly installed with an air inlet pipe (111). The bottom end of the air inlet pipe (111) is fixedly installed with a hollow cover (112).

7. The ventilation system for rail transit subway construction according to claim 1, characterized in that: The first valve (2) includes a valve frame (21). The two ends of the valve frame (21) are respectively fixedly installed between the air delivery pipe (1) and the first fan (3). A spherical valve core (22) is movably clamped in the middle of the valve frame (21). A valve rod (23) is vertically installed in the middle of the spherical valve core (22). The valve rod (23) is rotatably installed on the valve frame (21). A through groove (221) is horizontally opened in the middle of the spherical valve core (22). One end of the valve rod (23) extends out of the outer side of the valve frame (21) and is fixedly installed with a second bevel gear (24).

8. The ventilation system for rail transit subway construction according to claim 7, characterized in that: The structure of the second valve (4) is the same as that of the first valve (2). The second valve (4) is respectively fixedly installed between the auxiliary exhaust port (12) and the L-shaped pipe (5) through the two ends of the valve frame (21). The through groove (221) in the first valve (2) communicates with the two ends of the valve frame (21). The through groove (221) in the second valve (4) does not communicate with the two ends of the valve frame (21). The second bevel gears (24) in the first valve (2) and the second valve (4) are meshed and connected. The top end of the valve frame (21) in the first valve (2) is fixedly installed with a second motor (25). The driving end of the second motor (25) is fixedly installed with the top end of the corresponding valve rod (23).

9. A ventilation system for rail transit subway construction according to claim 1, characterized in that: The dust removal member (6) includes a dust removal outer frame (61), and the dust removal outer frame (61) is fixedly installed between the L-shaped pipe (5) and the second fan (7). A plurality of dust removal cloth bags (62) are fixedly installed in the dust removal outer frame (61).

10. A ventilation system for rail transit subway construction according to claim 1, characterized in that: The treatment mechanism (8) includes a treatment outer cylinder (81). One side of the top of the treatment outer cylinder (81) is fixedly installed with a liquid inlet pipe (82), and a liquid inlet valve (821) is fixedly installed on the liquid inlet pipe (82). One side of the bottom end of the treatment outer cylinder (81) is fixedly installed with a liquid discharge pipe (83), and a liquid discharge valve (831) is fixedly installed on the liquid discharge pipe (83). One side of the top end of the treatment outer cylinder (81) is fixedly installed with an exhaust port (84), and an exhaust pipe (841) is fixedly installed at the end of the exhaust port (84). The other side of the top end of the treatment outer cylinder (81) is fixedly installed with an intake pipe (85). One end of the intake pipe (85) is fixedly installed at one end of the auxiliary exhaust pipe (71) away from the second fan (7). The end of the intake pipe (85) away from the auxiliary exhaust pipe (71) extends into the treatment outer cylinder (81) and is fixedly installed with an exhaust cylinder (86). A plurality of uniformly distributed exhaust through grooves (861) are formed in the exhaust cylinder (86).

Images