Ventilation and noise reduction device for underground fire engineering

Abstract

The utility model relates to the technical field of fire protection engineering, in particular to an underground fire protection engineering ventilation and noise reduction device which comprises a ventilation shaft, sound absorption cotton, an air inlet assembly, a discharging assembly, a control assembly and an air pipe silencer. The sound-absorbing cotton is mounted on the ventilation shaft; the air inlet assembly is mounted in the sound-absorbing cotton; the discharge assembly is mounted on the ventilation shaft; the control assembly is mounted on the ventilation shaft; the control assembly comprises a control panel, the control panel is connected with a clamping plate, the control panel and the clamping plate are both connected with a sealing sleeve and a connecting block, the connecting block is provided with a sleeve body, the sleeve body is installed at the driving end of an electric push rod, and the electric push rod is installed on the outer wall of the ventilation shaft through a support. And the air pipe silencer is mounted in the ventilation shaft. The clamping plate and the control plate penetrate through the opening c to move into the ventilation shaft, air in the underground fire engineering is exhausted through cooperation of the exhaust fan b, the situation that the air in the ventilation shaft flows back into the underground fire engineering is reduced, and the ventilation effect is improved conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire engineering technical field especially relates to an underground fire engineering ventilation noise reduction device. BACKGROUND

[0002] Underground fire engineering refers to the fire-fighting equipment constructed in underground building. Because the place set in the underground is airtight around, air does not circulate, so the fire engineering ventilation device is usually set in the underground place to assist the ventilation of the underground place.

[0003] The Chinese patent with publication number CN203828035U discloses an underground fire engineering ventilation noise reduction device, which comprises a ventilation well, a plurality of air inlets are formed on the top surface of the ventilation well, a ventilation pipe is fixedly connected to the bottom of one side of the ventilation well, a fan is fixedly connected inside the ventilation well, an exhaust fan is fixedly connected inside the ventilation pipe, a noise reduction mechanism is arranged inside the ventilation well, the noise reduction mechanism comprises an air pipe silencer, mounting plates are fixedly connected symmetrically on the inner side wall of the ventilation well, a guide rod is fixedly connected to the top of the mounting plate, a spring is sleeved outside the guide rod, a buffer plate is fixedly connected to the top end of the spring, and sound-absorbing cotton is fixedly connected to the top and bottom of the buffer plate. The application can improve the noise reduction effect of the underground fire engineering ventilation by designing the noise reduction mechanism, so as to reduce the harm of noise to the personnel inside the underground fire engineering.

[0004] In use, the existing ventilation noise reduction device can ventilate the underground fire engineering by starting the fan, but when the fan is turned off, the air in the ventilation pipe and the ventilation well flows back to the underground fire engineering through the air pipe, which reduces the ventilation effect, and the filter screen is installed inside the device, which affects the maintenance, disassembly and replacement, and reduces the practicability of the ventilation noise reduction device. UTILITY MODEL CONTENTS

[0005] In view of the problems in the background art, an underground fire engineering ventilation noise reduction device is provided.

[0006] The utility model provides an underground fire engineering ventilation noise reduction device, which comprises a ventilation well, sound-absorbing cotton, an air inlet assembly, a discharge assembly, a control assembly and an air pipe silencer.

[0007] The sound-absorbing cotton is installed on the ventilation well.

[0008] The air inlet assembly is installed inside the sound-absorbing cotton.

[0009] The discharge assembly is installed on the ventilation well.

[0010] The control assembly is installed on the ventilation shaft; the control assembly comprises a control plate, the control plate is connected with a clamping plate, and the control plate and the clamping plate are both connected with a sealing sleeve and a connecting block, the connecting block is installed on a sleeve body, the sleeve body is installed on the driving end of the electric push rod, and the electric push rod is installed on the outer wall of the ventilation shaft through a support;

[0011] And the air pipe silencer is installed inside the ventilation shaft.

[0012] Preferably, the control plate and the clamping plate are moved to the inside of the ventilation shaft and combined by the electric push rod, and the combined control plate and clamping plate divide the inside of the ventilation shaft into a discharge chamber and a flow chamber.

[0013] In the open state of the control plate and the clamping plate, the underground fire engineering is used for flowing air from the outside to the inside or discharging air in the underground fire engineering to the outside through the flow chamber and the discharge chamber.

[0014] Preferably, the ventilation shaft is provided with an opening a, a fan is installed inside the ventilation shaft, and one side is provided with an opening and a cover body connection, the ventilation shaft is provided with four openings b and two openings c.

[0015] Dustproof nets are respectively installed in the four openings b, and the dustproof nets are provided with air inlets.

[0016] The two openings c are used for the control plate and the clamping plate to penetrate.

[0017] A rain shelter is installed above the ventilation shaft.

[0018] Preferably, the air inlet end of the fan faces the discharge chamber, the air outlet end faces the flow chamber, and the air outlet end and the control plate and the clamping plate are movably connected.

[0019] Preferably, the air inlet assembly comprises an air inlet pipe installed on the ventilation shaft, and the air inlet pipe is opposite to the opening a.

[0020] A block body is installed on the inner wall of the air inlet pipe, the block body is provided with mounting holes and is connected with mounting seats, and the mounting seats are provided with four, two by two as a group, and are used for connecting the exhaust fan a and the filter screen in the air inlet pipe.

[0021] Preferably, the mounting seat and the block body are detachably connected; the exhaust fan a, the filter screen and the air inlet pipe are detachably connected, and are used for maintenance or replacement.

[0022] Preferably, the exhaust assembly comprises an exhaust pipe installed on the outer side of the ventilation shaft, the exhaust pipe is internally provided with an exhaust fan b, and the exhaust pipe is opposite to one side opening b, and is used for discharging air in the underground fire engineering to the outside of the underground fire engineering.

[0023] Compared with the prior art, the utility model has the following beneficial technical effects:

[0024] The utility model discloses a discharge fan a is with the underground fire engineering internal air is discharged to the ventilating well, and the ventilating well is discharged through the air inlet, and when closing the discharge fan a, air stays in the ventilating well, and the electric push rod is operated, and the electric push rod drive end is connected with the sleeve body, and the sleeve body is connected with the control board and the clamping plate through the mounting block, and the clamping plate and the control board move in the ventilating well through the penetration opening c, and the ventilating well is divided into the discharge chamber and the flow chamber, and the control board and the clamping plate close between the discharge chamber and the flow chamber, make the air in the discharge chamber discharge from the discharge chamber through the exhaust fan b, reduce the backflow of the air in the ventilating well to the underground fire engineering, and improve the ventilation effect.

[0025] The utility model discloses a block body is set up on the air inlet pipe up and down, and the block body sets up the mounting hole, and the mounting hole is used for mounting seat bolt installation, and the mounting seat is connected on the block body, and the mounting seat sets up four, and two two are a group, and the exhaust fan a and the filter screen are conveniently installed in the air inlet pipe, and the exhaust fan a and the filter screen are conveniently maintained or disassembled and replaced, and the practicality of the underground fire engineering ventilation and noise reduction device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is whole structure schematic diagram in the utility model;

[0027] Figure 2 It is ventilating well structure schematic diagram in the utility model;

[0028] Figure 3 It is air inlet subassembly structure schematic diagram in the utility model;

[0029] Figure 4 It is discharge subassembly structure schematic diagram in the utility model;

[0030] Figure 5 It is control subassembly structure schematic diagram in the utility model.

[0031] Fig. 1 is a ventilating well;101, opening a;102, fan;103, cover;104, dust screen;105, rain shed;2, sound-absorbing cotton;3, air inlet subassembly;301, air inlet pipe;302, block;303, mounting seat;304, exhaust fan a;305, filter screen;4, discharge subassembly;401, discharge pipe;402, exhaust fan b;5, control subassembly;501, control board;502, clamping plate;503, sealing sleeve;504, connecting block;505, sleeve body;506, electric push rod;507, support;6, air pipe silencer. DETAILED DESCRIPTION

[0032] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0033] Example 1

[0034] like Figures 1-5 As shown, the utility model proposes a ventilation and noise reduction device for underground fire protection engineering, including: a ventilation shaft 1, sound-absorbing cotton 2, an air intake component 3, an exhaust component 4, a control component 5 and an air duct silencer 6; the sound-absorbing cotton 2 is installed on the ventilation shaft 1; the air intake component 3 is installed inside the sound-absorbing cotton 2; the exhaust component 4 is installed on the ventilation shaft 1; the control component 5 is installed on the ventilation shaft 1; the control component 5 includes a control panel 501, the control panel 501 is connected to a snap-fit ​​plate 502, and the control panel 501 and the snap-fit ​​plate 502 are both connected to a sealing sleeve 503 and a connecting block 504, the connecting block 504 is installed with a sleeve 505, the sleeve 505 is installed at the driving end of an electric push rod 506, and the electric push rod 506 is installed on the outer wall of the ventilation shaft 1 through a bracket 507; and the air duct silencer 6 is installed inside the ventilation shaft 1. The underground fire protection project is ventilated through the ventilation shaft 1, so that air circulates inside the underground fire protection project. The sound-absorbing cotton 2 and the air duct silencer 6 can achieve the noise reduction effect during the ventilation of the underground fire protection project, thereby reducing the harm caused by noise to people inside the underground fire protection project.

[0035] To further illustrate, the control panel 501 and the engaging plate 502 are moved into the ventilation shaft 1 and joined together via an electric push rod 506. The joined control panel 501 and engaging plate 502 divide the ventilation shaft 1 into a discharge chamber and a flow chamber. When the control panel 501 and engaging plate 502 are open, they are used to direct air from outside the underground fire protection project into the underground fire protection project, or to discharge air from the underground fire protection project to the outside through the flow chamber and the discharge chamber. The control panel 501 and engaging plate 502 are connected at the bottom by a connecting block 504, a housing 505, and an electric push rod 506. The control panel 501 and engaging plate 502 move through a sealing sleeve 503, which is positioned on both sides of the ventilation shaft 1 and acts as a movable seal.

[0036] To further illustrate, exhaust assembly 4 includes an exhaust pipe 401 mounted outside ventilation shaft 1, with exhaust fan b402 installed within exhaust pipe 401. Exhaust pipe 401 faces side opening b, and is used to exhaust air from the underground fire protection project to the outside of the underground fire protection project. When the ventilation and noise reduction device stops exhausting air from the underground fire protection project, exhaust fan b402 is activated. Exhaust fan b402, through exhaust pipe 401, faces side opening b, and exhausts any remaining air in the exhaust chamber, preventing air from flowing back into the underground fire protection project, thereby improving the ventilation effect of the underground fire protection project.

[0037] Example 2

[0038] like Figures 2-4The utility model provides a kind of underground fire engineering ventilation and noise reduction device, on the basis of above embodiment, ventilation well 1 and air intake assembly 3 specific component part and cooperation mode are also detailed in this embodiment.

[0039] Further explanation, ventilation well 1 is provided with opening a101;Ventilation well 1 inside installation fan 102 and one side is provided with opening and cover 103 connection, ventilation well 1 is provided with four openings b and two openings c;Four openings b inside installation dust screen 104 respectively, dust screen 104 is provided with air inlet;Two openings c are penetrated by control panel 501 and clamping plate 502;Ventilation well 1 top installs rain shelter 105.Start fan 102, fan 102 impeller rotation, converts mechanical energy into kinetic energy of air, impeller pushes air from axial suction into fan 102, after acceleration and compression effect, generates high-speed airflow, finally discharges from fan 102 outlet, fan 102 outlet is arranged in ventilation well 1 downwards, so that high-speed flow of air outside underground fire engineering into ventilation well 1, ventilation well 1 is connected by opening a101 and air intake assembly 3, external air flows to the inside of underground fire engineering through air intake assembly 3.

[0040] Further explanation, fan 102 air inlet end is towards discharge chamber, air outlet end is towards flow chamber, and air outlet end and control panel 501, open-close plate 502 are movably connected.Fan 102 reaches the air flow outside underground fire engineering and is sucked into, improves underground fire engineering work safety.

[0041] Further explanation, air intake assembly 3 includes air inlet pipe 301 installed on ventilation well 1, and air inlet pipe 301 is opposite to opening a101;Air inlet pipe 301 inner wall installs block 302, block 302 is provided with mounting hole and is connected with mounting seat 303, and mounting seat 303 is provided with four, two are a group, for connecting exhaust fan a304, filter screen 305 in air inlet pipe 301 inside.Air inlet pipe 301 in ventilation use process, sound-absorbing cotton 2 reduces noise, starts exhaust fan a304 and makes air flow in underground fire engineering into ventilation well 1, during the air discharge ventilation process in underground fire engineering, control panel 501 and clamping plate 502 are in separation state, so that internal air flow is discharged to the outside through dust screen 104 air inlet.

[0042] Further explanation, mounting seat 303 and block 302 can be detachably connected;Exhaust fan a304, filter screen 305 and air inlet pipe 301 can be detachably connected, for maintenance or replacement.By exhaust fan a304 disassembly, it is convenient to disassemble filter screen 305 from air inlet pipe 301, so that it cleans the dust and impurities blocked on filter screen 305, improves the use of filter screen 305, avoids filter screen 305 filter hole blockage, improves underground fire engineering ventilation work effect.

[0043] The working principle of the utility model is as follows: through starting the fan 102, the fan 102 suction end passes through the air inlet, and the underground fire engineering outside air is sucked into the ventilating well 1, the ventilating well 1 opening a101 and the air inlet pipe 301 are opposite, and the outside air is flowed to the air inlet pipe 301 through the opening a101, the air inlet pipe 301 export is connected with the underground fire engineering inside, so that the outside air is flowed to the underground fire engineering inside, the air inlet pipe 301 is installed the exhaust fan a304, and the fan 102 is closed and the exhaust fan a304 is started, so that the underground fire engineering inside air is discharged to the air inlet pipe 301, the air inlet pipe 301 is filtered to the air, and after filtering, it is discharged through the dust screen 104 air inlet; when the underground fire engineering inside air discharge work stops operation, the exhaust fan a304 is closed and the electric push rod 506 is started, the electric push rod 506 drive end makes the sleeve body 505 move, the sleeve body 505 drives the connecting block 504, the connecting block 504 makes the control panel 501 and the clamping plate 502 move to the ventilating well 1 through the opening c, the control panel 501 and the clamping plate 502 move synchronously and are connected with the end and close, so that the ventilating well 1 inside flowing air is blocked, the indoor air is discharged through starting the exhaust fan b402, the exhaust fan b402 is discharged from the air inlet, the exhaust fan b402 is discharged from the air inlet, the exhaust air backflow to the underground fire engineering inside is reduced, and the electric push rod 506 and the exhaust fan b402 are started according to the need and work use.

[0044] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the technical personnel in the technical field, without departing from the purpose of the utility model.

Claims

1. A ventilation and noise reduction device for underground fire protection engineering, characterized in that: include: ventilation shaft (1); Sound-absorbing cotton (2), installed on the ventilation shaft (1); An air inlet assembly (3) is installed inside the sound-absorbing cotton (2); a discharge assembly (4) mounted on the ventilation shaft (1); A control assembly (5) is installed on the ventilation shaft (1); the control assembly (5) includes a control panel (501), the control panel (501) is connected to a snap-fit ​​plate (502), and the control panel (501) and the snap-fit ​​plate (502) are both connected to a sealing sleeve (503) and a connecting block (504), the connecting block (504) is installed with a sleeve (505), the sleeve (505) is installed at the driving end of an electric push rod (506), and the electric push rod (506) is installed on the outer wall of the ventilation shaft (1) through a bracket (507); and an air duct silencer (6), which is installed inside the ventilation shaft (1).

2. The underground fire protection engineering ventilation and noise reduction device according to claim 1, characterized in that: The control panel (501) and the locking panel (502) are moved to the inside of the ventilation shaft (1) by the electric push rod (506) and are merged together. The merged control panel (501) and the locking panel (502) divide the ventilation shaft (1) into a discharge chamber and a flow chamber. When the control panel (501) and the locking panel (502) are in the open state, they are used to allow the air outside the underground fire protection project to flow into the underground fire protection project, or to discharge the air inside the underground fire protection project to the outside through the flow chamber and the discharge chamber.

3. The underground fire protection engineering ventilation and noise reduction device according to claim 1, characterized in that: The ventilation shaft (1) is provided with an opening a (101); a fan (102) is installed inside the ventilation shaft (1) and an opening is provided on one side to be connected to a cover (103); the ventilation shaft (1) is provided with four openings b and two openings c; A dustproof net (104) is installed inside each of the four openings b, and the dustproof net (104) is provided with an air inlet; The two openings c are for the control plate (501) and the locking plate (502) to pass through; A rain shelter (105) is installed above the ventilation shaft (1).

4. The underground fire protection engineering ventilation and noise reduction device according to claim 3, characterized in that: The air inlet end of the fan (102) faces the discharge chamber, the air outlet end faces the flow chamber, and the air outlet end is movably connected to the control panel (501) and the locking panel (502).

5. The underground fire protection engineering ventilation and noise reduction device according to claim 3, characterized in that: The air inlet assembly (3) comprises an air inlet pipe (301) installed on the ventilation shaft (1), and the air inlet pipe (301) is opposite to the opening a (101); A block (302) is installed on the inner wall of the air inlet pipe (301). The block (302) is provided with a mounting hole and is connected to a mounting seat (303). Four mounting seats (303) are provided, two in a group, for connecting an exhaust fan a (304) and a filter (305) inside the air inlet pipe (301).

6. The underground fire protection engineering ventilation and noise reduction device according to claim 5, characterized in that: The mounting base (303) and the block (302) are detachably connected; the exhaust fan a (304), the filter (305) and the air inlet pipe (301) are detachably connected for maintenance or replacement.

7. The underground fire protection engineering ventilation and noise reduction device according to claim 1 or 5, characterized in that: The exhaust assembly (4) comprises an exhaust pipe (401) installed outside the ventilation shaft (1), an exhaust fan b (402) is installed inside the exhaust pipe (401), and the exhaust pipe (401) is opposite to the opening b on one side, and is used to exhaust the air in the underground fire protection project to the outside of the underground fire protection project.

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