Pipeline ventilation system for tunnel cooling

Abstract

The invention relates to the technical field of tunnel ventilation and safety, and discloses a tunnel cooling pipeline ventilation system which comprises a ventilation system body, the ventilation system body comprises a ventilation pipeline and a ventilation device, a grating is installed on the inner side face, close to an output port of the ventilation pipeline, of the ventilation pipeline, and a filter screen is laid on the side face, close to an output port of the ventilation system, of the grating. According to the device, when a filter screen is blocked, the wind energy on one side of the filter screen exceeds a rated value, the filter screen drives a grid to move towards the interior of the ventilation system, and the ventilation system is started to conduct ventilation; when the grid is in contact with the inductive switch and sends a corresponding early warning signal to the early warning system, the early warning system judges that the filter screen is blocked, stable working current is input into the adsorption dust removal device, the dust cleaning mechanism and the auxiliary dust cleaning assembly, and dust on the surface of the filter screen is automatically cleaned and recycled.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel ventilation and safety, and more particularly to a duct ventilation system for tunnel cooling. Background Art

[0002] In tunnels and underground projects, the ventilation system is the core equipment to ensure construction safety and operating environment. Especially in tunnel environments with high temperature, high humidity or dense dust, the performance of the ventilation system directly affects the health of operators and the service life of equipment. Traditional duct ventilation systems mostly rely on fixed filters to intercept dust. However, in long-term operation, the filter is prone to blockage due to dust accumulation, which in turn leads to problems such as decreased ventilation efficiency, increased energy consumption, and local temperature rise. In the prior art, the blockage of the filter is usually handled by manual regular cleaning or simple mechanical vibration, but there are the following defects: I. It is impossible to monitor in real time whether the filter is blocked: The traditional system lacks automated monitoring equipment and requires manual regular disassembly or visual inspection of the filter. This method has a time interval (such as checking once a day or once a week) and cannot capture the instantaneous changes of blockage (such as rapid blockage caused by sudden dust influx). At the same time, traditional pressure sensors or air flow meters are easily affected by environmental interferences such as temperature, humidity, and vibration in the tunnel, resulting in data distortion. For example, high temperature may cause sensor drift, and dust adhesion affects its sensitivity; II. The process of cleaning the blockage of the filter is too cumbersome: System cleaning requires shutting down the ventilation system and disassembling the filter, resulting in the interruption of ventilation in the tunnel and affecting construction or operating safety. For example, the shutdown and cleaning of a mine tunnel may delay the production progress; Therefore, there is an urgent need for a duct ventilation system for tunnel cooling to solve the above-mentioned technical problems. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a duct ventilation system for tunnel cooling to solve the problems existing in the above background art.

[0004] The present invention provides the following technical solutions: A duct ventilation system for tunnel cooling, comprising: A ventilation system, wherein the ventilation system includes a ventilation duct and a ventilation device. A grille is installed on the inner side of the ventilation duct near its outlet, a filter screen is laid on the side of the grille close to the outlet of the ventilation system, an early warning system is arranged inside the ventilation system, and the ventilation device is arranged inside the ventilation duct; The dust cleaning mechanism is used to assist in cleaning and recycling the dust on the surface of the filter screen. The dust cleaning mechanism is arranged at the middle position of the grille. An adsorption and dust removal device is arranged on the bottom surface of the ventilation duct near the grille to provide the impurities required for cleaning and recycling the dust to the dust cleaning mechanism. A plurality of groups of auxiliary dust cleaning components are arranged at equal intervals on the outer side surface of the grille to assist in cleaning the dust on the surface of the filter screen; An induction switch is installed on the inner side surface of the ventilation duct near the grille. When the surface of the filter screen is blocked, the grille touches the induction switch and drives it to send a corresponding warning signal to the warning system. After receiving the signal, the warning system judges that the filter screen is blocked, and a stable working current is input to the adsorption and dust removal device, the dust cleaning mechanism and the auxiliary dust cleaning components to automatically clean and recycle the dust on the surface of the filter screen.

[0005] Further, the adsorption and dust removal device includes an output end and an adsorption end. An output pipe is installed at the output end of the adsorption and dust removal device. One end of the output pipe far from the adsorption and dust removal device is arranged inside the grille. An air groove is opened inside the grille, and a plurality of groups of dust cleaning spray guns are installed at equal intervals on the outer side surface of the grille near the air groove opened inside it. One ends of the plurality of dust cleaning spray guns all extend into the air groove.

[0006] Further, an adsorption pipe is installed inside the input end of the adsorption and dust removal device. One end of the adsorption pipe far from the adsorption and dust removal device is arranged inside the dust cleaning mechanism; The dust cleaning mechanism includes a servo motor. The servo motor is installed in the middle area of the side surface of the grille far from the filter screen. A transmission rod is installed at one end of the servo motor. An air chamber is opened inside the transmission rod, and a protective chamber is movably sleeved on the outer wall of the middle area of the transmission rod.

[0007] Further, one end of the adsorption pipe is installed through the protective chamber. When a stable working current is input to the adsorption and dust removal device, an adsorption force is generated at the input end of the adsorption and dust removal device and is transmitted to the inside of the protective chamber through the adsorption pipe. The adsorbed air inside the protective chamber is transmitted into the air chamber of the transmission rod. An adsorption plate is installed at the end of the transmission rod far from the servo motor, and a plurality of groups of equally spaced adsorption holes are arranged on the side surface of the adsorption plate near the filter screen. The adsorbed air in the air chamber of the transmission rod is transmitted into the adsorption plate and then transmitted to the surface of the filter screen through the adsorption holes.

[0008] Further, a plurality of groups of sliding grooves are equidistantly arranged on the inner side surface of the ventilation system near the filter screen. The auxiliary dust cleaning assembly includes a plurality of groups of sliders, and the plurality of groups of sliders are sequentially sleeved in each group of sliding grooves. One end of each group of sliders away from the corresponding sliding groove is installed on the outer side surface of the grille. On the outer side surface of each group of sliders near the grille, a telescopic plate is installed, and the outer side surface of each telescopic plate is adapted to the inner side surface of the corresponding sliding groove.

[0009] Further, first springs are installed on both sides of each group of sliders, and a pressing rod is installed in the middle area on both sides of the slider. One end of the pressing rod away from the corresponding slider is sleeved with a hollow column, and a permanent magnet block is installed on the side surface of the pressing rod close to the hollow column. An electromagnetic block is installed on the inner side surface of the hollow column away from the pressing rod. After the electromagnetic block inputs a stable working current, a magnetic effect will be generated between the electromagnetic block and the permanent magnet block. A second spring is installed on the inner side surface of the hollow column away from the electromagnetic block.

[0010] The technical effects and advantages of the present invention: 1. When the filter screen is blocked in the present invention, the wind energy on one side of the filter screen exceeds the rated value. The filter screen drives the grille to move towards the inside of the ventilation system until the grille touches the induction switch and sends a corresponding warning signal to the warning system. The warning system judges that the filter screen is blocked, and the adsorption dust removal device, the dust cleaning mechanism, and the auxiliary dust cleaning assembly input a stable working current to automatically clean and recycle the dust on the surface of the filter screen.

[0011] 2. When the warning system judges that the filter screen is blocked in the present invention, the warning system controls the electromagnetic block located on one side of the grille to input a stable working current to generate a magnetic suction force with the corresponding permanent magnet block, thereby driving the first spring on one side of the grille to be in a compressed state. After the first spring is compressed to the critical value, the electromagnetic block on one side stops inputting current, and the first spring on one side returns to its original state and generates a corresponding spring force to drive the grille to be in a vibrating state, thereby achieving the effect of accelerating the cleaning efficiency of the filter screen laid on the surface of the grille. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is Figure 1 The enlarged schematic diagram of the structure at A in

[0014] Figure 3 It is Figure 1 The overall structure schematic diagram of the grille shown.

[0015] Figure 4 It is Figure 3 The enlarged schematic diagram of the structure at B shown.

[0016] Figure 5 The Figure 4 side sectional view of the hollow column shown.

[0017] Figure 6 is Figure 3 schematic diagram of a partial structure of the dust cleaning mechanism shown.

[0018] Reference numerals are: 1, ventilation system; 101, ventilation duct; 102, ventilation device; 103, grille; 104, telescopic plate; 105, induction switch; 106, dust cleaning spray gun; 2, adsorption dust removal device; 201, output pipe; 202, adsorption pipe; 3, dust cleaning mechanism; 301, servo motor; 302, transmission rod; 303, protective cabin; 304, adsorption plate; 305, adsorption hole; 4, auxiliary dust cleaning component; 401, first spring; 402, hollow column; 403, slider; 404, electromagnet; 405, permanent magnet; 406, second spring; 407, extrusion rod. Specific embodiments

[0019] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples, and a tunnel cooling pipeline ventilation system related to the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0020] Referring to Figure 1 shown, the present invention provides a tunnel cooling pipeline ventilation system, including: A ventilation system 1, wherein the ventilation system 1 includes a ventilation duct 101 and a ventilation device 102. A grille 103 is installed on the inner side surface of the ventilation duct 101 near its output port. A filter screen is laid on the side surface of the grille 103 close to the output port of the ventilation system 1. An early warning system is provided inside the ventilation system 1, and the ventilation device 102 is arranged inside the ventilation duct 101; A dust cleaning mechanism 3 for assisting in cleaning and recovering the dust on the surface of the filter screen. The dust cleaning mechanism 3 is arranged at the middle position of the grille 103. An adsorption dust removal device 2 is arranged on the bottom surface of the ventilation duct 101 near the grille 103 for providing the impurities required for cleaning and recovering the dust to the dust cleaning mechanism 3. A plurality of groups of auxiliary dust cleaning components 4 are arranged at equal intervals on the outer side surface of the grille 103 for assisting in cleaning the dust on the surface of the filter screen; An induction switch 105 is installed on the inner side of the ventilation duct 101 near the grille 103. When the filter screen surface is blocked, the grille 103 touches the induction switch 105 to drive it to send a corresponding warning signal to the warning system. After receiving the signal, the warning system determines that the filter screen is blocked, and a stable working current is input to the adsorption dust removal device 2, the dust cleaning mechanism 3, and the auxiliary dust cleaning component 4 to automatically clean and recycle the dust on the filter screen surface.

[0021] In the embodiment of the present application, the specific working process of this part of the embodiment is as follows: During the working process, if the filter screen surface is blocked, most of the wind energy outside the ventilation system 1 is blocked on one side of the filter screen. When the wind energy on one side of the filter screen exceeds the rated value, the filter screen drives the grille 103 to move towards the inside of the ventilation system 1 until the grille 103 touches the induction switch 105 and sends a corresponding warning signal to the warning system. The warning system determines that the filter screen is blocked, and a stable working current is input to the adsorption dust removal device 2, the dust cleaning mechanism 3, and the auxiliary dust cleaning component 4 to automatically clean and recycle the dust on the filter screen surface.

[0022] Refer to Figures 1 to 3 As shown, the present invention provides a tunnel cooling duct ventilation system. The adsorption dust removal device 2 includes a set of output ends and a set of adsorption ends. An output pipe 201 is installed at the output end of the adsorption dust removal device 2. One end of the output pipe 201 far from the adsorption dust removal device 2 is arranged inside the grille 103. An air groove is opened inside the grille 103, and a plurality of dust cleaning spray guns 106 are sequentially and equidistantly installed on the outer side of the grille 103 near the position of the air groove opened inside it. One end of each of the plurality of dust cleaning spray guns 106 extends into the air groove. An adsorption pipe 202 is installed inside the input end of the adsorption dust removal device 2. One end of the adsorption pipe 202 far from the adsorption dust removal device 2 is arranged inside the dust cleaning mechanism 3.

[0023] Refer to Figures 1 to 3 And Figure 6 As shown, the present invention provides a tunnel cooling duct ventilation system. The dust cleaning mechanism 3 includes a servo motor 301. The servo motor 301 is installed in the middle area of the side of the grille 103 far from the filter screen. One end of the servo motor 301 is installed with a transmission rod 302. An air chamber is opened inside the transmission rod 302, and a protective chamber 303 is movably sleeved on the outer wall of the middle area of the transmission rod 302. One end of the adsorption tube 202 penetrates and is installed inside the protection cabin 303, and the adsorption and dust removal device 2 inputs a stable working current. An adsorption force is generated at the input end of the adsorption and dust removal device 2 and is transmitted to the inside of the protection cabin 303 through the adsorption tube 202. The adsorbed air inside the protection cabin 303 is transmitted to the air cabin of the transmission rod 302. One end of the transmission rod 302 away from the servo motor 301 is installed with an adsorption plate 304, and a plurality of groups of equally spaced adsorption holes 305 are sequentially arranged on the side surface of the adsorption plate 304 close to the filter screen. The adsorbed air in the air cabin of the transmission rod 302 is transmitted to the inside of the adsorption plate 304 and is transmitted to the surface of the filter screen through the adsorption holes 305.

[0024] The specific working process of the embodiment of the present application is as follows: When the warning system determines that the filter screen is blocked, the adsorption and dust removal device 2 inputs a stable working current. Compressed air is generated at the output end of the adsorption and dust removal device 2 and is transmitted to the air groove opened inside the grille 103 through the output pipe 201, and is directly transmitted to the non-dust contact surface of the filter screen through the dust cleaning spray gun 106. Under the operation of the compressed air inside the plurality of dust cleaning spray guns 106, the dust in the filter holes of the filter screen is cleaned. An adsorption force is generated at the input end of the adsorption and dust removal device 2 and is transmitted to the inside of the protection cabin 303 through the adsorption tube 202. The adsorbed air inside the protection cabin 303 is transmitted to the air cabin of the transmission rod 302. The adsorbed air in the air cabin of the transmission rod 302 is transmitted to the inside of the adsorption plate 304 and is transmitted to the surface of the filter screen through the adsorption holes 305 to recover the dust on the dust contact surface of the filter screen and the dust existing in the filter holes.

[0025] Refer to Figure 1 And Figures 3 to 5 As shown in the figure, the present invention provides a pipeline ventilation system for tunnel cooling. A plurality of groups of chutes are sequentially and equally spaced on the inner side surface of the ventilation system 1 close to the filter screen. The auxiliary dust cleaning assembly 4 includes a plurality of groups of sliders 403. The plurality of groups of sliders 403 are sequentially sleeved in each chute. One ends of the plurality of sliders 403 away from the corresponding chutes are all installed on the outer side surface of the grille 103. A telescopic plate 104 is installed on the outer side surface of each slider 403 close to the grille 103. The outer side surface of each telescopic plate 104 is adapted to the inner side surface of the corresponding chute. A first spring 401 is installed on both sides of each slider 403, and an extrusion rod 407 is installed in the middle area on both sides of the slider 403. A hollow column 402 is sleeved on the outer side surface of one end of the extrusion rod 407 away from the corresponding slider 403, and a permanent magnet block 405 is installed on the side surface of the extrusion rod 407 close to the hollow column 402. An electromagnetic block 404 is installed on the inner side surface of the hollow column 402 away from the extrusion rod 407. After the electromagnetic block 404 inputs a stable working current, a magnetic effect will be generated between the electromagnetic block 404 and the permanent magnet block 405. A second spring 406 is installed on the inner side of the hollow column 402 away from the electromagnetic block 404.

[0026] In the embodiment of the present application, the specific working process of this part of the application embodiment is as follows: when the warning system determines that the filter screen is blocked, the warning system controls the electromagnetic block 404 located on one side of the grille 103 to input a stable working current to generate a magnetic suction force with the corresponding permanent magnet block 405, thereby driving the first spring 401 on one side of the grille 103 to be in a compressed state. After the first spring 401 is compressed to the critical value, the electromagnetic block 404 on one side stops inputting current, and the first spring 401 on one side returns to its original state and generates a corresponding spring force to drive the grille 103 to be in a vibrating state, thereby achieving the improvement of the cleaning efficiency of the filter screen laid on the surface of the grille 103.

[0027] The specific working process of the present application is as follows: Monitoring of filter screen blockage: During the working process, if the filter screen surface is blocked, most of the wind energy outside the ventilation system 1 is blocked on one side of the filter screen. When the wind energy on one side of the filter screen exceeds the rated value, the filter screen drives the grille 103 to move towards the inside of the ventilation system 1 until the grille 103 touches the induction switch 105 and sends a corresponding warning signal to the warning system. The warning system determines that the filter screen is blocked, and the adsorption dust removal device 2, the dust cleaning mechanism 3, and the auxiliary dust cleaning component 4 input a stable working current to automatically clean and recycle the dust on the filter screen surface; Cleaning and recycling of the filter screen: When the warning system determines that the filter screen is blocked, the adsorption dust removal device 2 inputs a stable working current. The output end of the adsorption dust removal device 2 generates compressed air and transmits it through the output pipe 201 to the air grooves opened inside the grille 103, and directly transmits it to the non-dust contact surface of the filter screen through the dust cleaning spray gun 106. Under the operation of the compressed air inside the multiple dust cleaning spray guns 106, the dust in the filter holes of the filter screen is cleaned; The input end of the adsorption dust removal device 2 generates an adsorption force and transmits it through the adsorption pipe 202 to the inside of the protective cabin 303. The adsorbed air inside the protective cabin 303 is transmitted to the air cabin of the transmission rod 302. The adsorbed air in the air cabin of the transmission rod 302 is transmitted to the inside of the adsorption plate 304 and transmitted to the surface of the filter screen through the adsorption holes 305 to recycle the dust on the dust contact surface and in the filter holes of the filter screen; Auxiliary cleaning: When the warning system determines that the filter screen is blocked, the warning system controls the electromagnet block 404 located on one side of the grille 103 to input a stable working current to generate a magnetic suction force with the corresponding permanent magnet block 405, thereby driving the first spring 401 on one side of the grille 103 to be in a compressed state. After the first spring 401 is compressed to the critical value, the electromagnet block 404 on one side stops inputting current, and the first spring 401 on one side returns to its original state and generates a corresponding spring force to drive the grille 103 to be in a vibrating state, thereby achieving the improvement of the cleaning efficiency of the filter screen laid on the surface of the grille 103.

[0028] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change; Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline ventilation system for tunnel cooling, characterized in that, Comprising: A ventilation system (1), wherein the ventilation system (1) includes a ventilation duct (101) and a ventilation device (102). A grille (103) is installed on the inner side of the ventilation duct (101) near its outlet position. A filter screen is laid on the side of the grille (103) close to the outlet of the ventilation system (1). An early warning system is provided inside the ventilation system (1), and the ventilation device (102) is arranged inside the ventilation duct (101); A dust cleaning mechanism (3) for assisting in cleaning and recycling the dust on the surface of the filter screen. The dust cleaning mechanism (3) is arranged at the middle position of the grille (103). An adsorption and dust removal device (2) is arranged on the bottom surface of the ventilation duct (101) near the grille (103) for providing the impurities required for cleaning and recycling the dust to the dust cleaning mechanism (3). A plurality of groups of auxiliary dust cleaning components (4) are arranged at equal intervals on the outer side of the grille (103) for assisting in cleaning the dust on the surface of the filter screen; An induction switch (105) is installed on the inner side of the ventilation duct (101) near the grille (103). When the filter screen surface is blocked, the grille (103) touches the induction switch (105) to drive it to send a corresponding warning signal to the early warning system. After receiving the signal, the early warning system determines that the filter screen is blocked, and a stable working current is input to the adsorption and dust removal device (2), the dust cleaning mechanism (3), and the auxiliary dust cleaning components (4) to automatically clean and recycle the dust on the filter screen surface.

2. The pipeline ventilation system for tunnel cooling according to claim 1, characterized in that: The adsorption and dust removal device (2) includes a set of output ends and a set of adsorption ends. An output pipe (201) is installed at the output end of the adsorption and dust removal device (2). One end of the output pipe (201) far from the adsorption and dust removal device (2) is arranged inside the grille (103). An air groove is formed inside the grille (103), and a plurality of groups of dust cleaning spray guns (106) are arranged at equal intervals on the outer side of the grille (103) near the air groove formed inside it. One end of each of the plurality of dust cleaning spray guns (106) extends into the air groove.

3. The pipeline ventilation system for tunnel cooling according to claim 2, characterized in that: An adsorption pipe (202) is installed inside the input end of the adsorption and dust removal device (2). One end of the adsorption pipe (202) far from the adsorption and dust removal device (2) is arranged inside the dust cleaning mechanism (3); The dust cleaning mechanism (3) includes a servo motor (301). The servo motor (301) is installed in the middle area of the side of the grille (103) far from the filter screen. A transmission rod (302) is installed at one end of the servo motor (301). An air chamber is formed inside the transmission rod (302), and a protective chamber (303) is movably sleeved on the outer wall of the middle area of the transmission rod (302).

4. The pipeline ventilation system for tunnel cooling according to claim 3, wherein: One end of the adsorption tube (202) is installed through the interior of the protective cabin (303), and the adsorption and dust removal device (2) inputs a stable working current. An adsorption force is generated at the input end of the adsorption and dust removal device (2) and is transmitted to the interior of the protective cabin (303) through the adsorption tube (202). The adsorbed air inside the protective cabin (303) is transmitted into the air chamber of the transmission rod (302). One end of the transmission rod (302) away from the servo motor (301) is installed with an adsorption plate (304), and a plurality of groups of equally spaced adsorption holes (305) are sequentially formed on the side surface of the adsorption plate (304) close to the filter screen. The adsorbed air in the air chamber of the transmission rod (302) is transmitted into the adsorption plate (304) and is transmitted to the surface of the filter screen through the adsorption holes (305).

5. A pipeline ventilation system for tunnel cooling according to claim 1, characterized in that: On the inner side surface of the ventilation system (1) close to the filter screen, a plurality of groups of sliding grooves are sequentially and equally spaced. The auxiliary dust cleaning assembly (4) includes a plurality of groups of sliders (403). A plurality of groups of sliders (403) are sequentially sleeved in each sliding groove. One end of each group of sliders (403) away from the corresponding sliding groove is installed on the outer side surface of the grille (103). On the outer side surface of each group of sliders (403) close to the grille (103), a telescopic plate (104) is installed. The outer side surface of each telescopic plate (104) is adapted to the inner side surface of the corresponding sliding groove.

6. The pipeline ventilation system for tunnel cooling according to claim 5, characterized in that: On both sides of each group of sliders (403), a first spring (401) is installed, and an extrusion rod (407) is installed in the middle area on both sides of the slider (403). The outer side surface of one end of the extrusion rod (407) away from the corresponding slider (403) is sleeved with a hollow column (402), and a permanent magnet block (405) is installed on the side surface of the extrusion rod (407) close to the hollow column (402). An electromagnetic block (404) is installed on the inner side surface of the hollow column (402) away from the extrusion rod (407). After the electromagnetic block (404) inputs a stable working current, a magnetic effect will be generated between the electromagnetic block (404) and the permanent magnet block (405). A second spring (406) is installed on the inner side surface of the hollow column (402) away from the electromagnetic block (404).

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