Underground space ventilation device for civil air defense engineering

Abstract

The utility model discloses an underground space ventilation device for civil air defense engineering, which belongs to the technical field of civil air defense engineering ventilation and comprises air inlet pipelines, bent pipes and three-way pipes, a plurality of air inlet pipelines are connected through the bent pipes and the three-way pipes to form a ventilation pipeline of the civil air defense engineering, and the air inlet pipelines are further provided with adapter pipes. The adapter pipe and the three-way pipe can be connected with a branch pipe through an adapter, the branch pipe is provided with a first valve, the branch pipe is provided with an additional pipe, the additional pipe or the adapter pipe is provided with an auxiliary air inlet device and an air inlet pipeline, the branch pipe is sleeved with a hoop, the side wall of the hoop is provided with an installation piece, and an air inlet of the air inlet pipeline is provided with a flange. And a second mounting hole site is formed in the flange. An auxiliary air inlet device can be additionally arranged at the three-way pipe, the adapter pipe and the additionally-arranged pipe, the auxiliary air inlet device is provided with a second valve, an auxiliary pipe and a second ventilator, the second valve can be opened at the branch pipe and the additionally-arranged pipe, and the air flow rate in the branch pipe and the additionally-arranged pipe can be increased by starting the second ventilator.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation for civil air defense projects, in particular to an underground space ventilation device for civil air defense projects. Background Art

[0002] Ventilation technology for civil air defense projects refers to the use of ventilation facilities in civil air defense projects to circulate air and provide people with a fresh and comfortable air environment. Ventilation facilities are an indispensable part of air defense projects, which can renew the air inside the air defense projects, reduce the accumulation of thick smoke and toxic gases, and thus ensure people's safety.

[0003] After searching, it was found that the Chinese patent publication number CN216522172U disclosed "A large flow ventilation device based on civil air defense engineering" includes ventilation pipe 1, ventilation pipe 2 and ventilation pipe 3, one end of the ventilation pipe 1 is connected with a filter box, one side of the filter box is bolted with a ventilation grille, a filter plate is arranged inside the filter box, a cleaning component is arranged on one side of the filter plate, and an ash collecting component is arranged at the bottom of the filter box. A fan is fixedly installed between the other end of the ventilation pipe 1 and the ventilation pipe 2, an adsorption box is arranged between the other end of the ventilation pipe 2 and the ventilation pipe 3, and the tops of the ventilation pipes 1, 2 and 3 are all fixedly welded with mounting hangers;

[0004] In general ventilation systems, in order to ensure the circulation and uniform distribution of air, various methods and equipment are used to control and guide the airflow. Due to the limitations of spatial structure and architectural layout (such as right-angle turns and wall obstructions in buildings), airflow is often poor or blocked. If the design of the ventilation system does not fully consider the particularity of corner locations, or if effective measures are not taken to improve airflow conditions, it may cause thin air flow in the duct or even dead corners, affecting the efficiency and performance of the entire ventilation system, resulting in poor air circulation and ventilation in the building. Uneven air flow may also lead to pollution or odor problems in certain areas, affecting the comfort and health of the living and working environment. Utility Model Content

[0005] The main purpose of the utility model is to provide an underground space ventilation device for civil air defense projects, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A ventilation device for underground space used in civil air defense projects, comprising an air inlet duct, an elbow, and a tee, wherein a plurality of the air inlet ducts are connected through the elbow and the tee to form a ventilation duct of the civil air defense project, the air inlet duct is also installed with a transfer pipe, and the transfer pipe and the tee can be connected with a branch pipe through a transfer joint, a first valve is installed on the branch pipe, an additional pipe is installed at the branch pipe, and an auxiliary air inlet device is installed at the additional pipe or the transfer pipe, a clamp is sleeved on the air inlet duct and the branch pipe, and a mounting piece is provided on the side wall of the clamp, a flange is provided at the air inlet of the air inlet duct, and a second mounting hole is opened on the flange, a first ventilator is installed at the flange, and the first ventilator is installed on the flange through a connecting ring;

[0008] The auxiliary air inlet device comprises an auxiliary joint and a second ventilator. The auxiliary joint is installed on the installation pipe, and the auxiliary joint is connected to the auxiliary pipe through a second valve. The second ventilator is installed at the outer end of the auxiliary pipe.

[0009] The diameter of the branch pipe is half of the diameter of the air inlet duct, the diameter of the branch pipe is consistent with that of the additional pipe, and the branch pipe and the additional pipe extend to the corner of the civil air defense building;

[0010] The air inlet duct, branch pipe and additional pipe are fixed to the civil air defense building through clamps and mounting parts, the mounting parts are welded and fixed to the clamps, and the clamps are fixed by bolts and nuts;

[0011] The connecting ring is provided with a first mounting hole adapted to the second mounting hole, and the connecting ring is welded to the housing of the first ventilator, and the flange is integrally designed with the air inlet duct;

[0012] The auxiliary pipe and the second ventilator are fixed by bolts, and a sealing ring is sleeved at the connection between the auxiliary pipe and the second valve, and the diameter of the auxiliary pipe is consistent with the diameter of the auxiliary joint;

[0013] Wherein, a rubber ring is provided at the groove of the inner wall of the clamp, and the rubber ring is tightly attached to the outer walls of the air inlet duct, the branch pipe and the installation pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the ventilation device in the civil air defense building is improved, and an auxiliary air intake device can be installed at the three-way pipe, the transfer pipe and the additional pipe. The auxiliary air intake device is provided with a second valve, an auxiliary pipe and a second ventilator. The second valve can be opened at the branch pipe and the additional pipe, and the second ventilator can be started to increase the air flow rate in the branch pipe and the additional pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the first ventilator and the air inlet duct of the utility model;

[0018] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0019] Figure 4 This is a display diagram of the auxiliary air intake device of the utility model;

[0020] Figure 5 This is a top view showing the overall structure of the utility model.

[0021] In the figure: 1. air inlet duct; 2. elbow; 3. tee; 4. adapter; 5. auxiliary air inlet device; 51. auxiliary joint; 52. second valve; 53. auxiliary pipe; 54. second ventilator; 6. adapter; 7. first valve; 8. branch pipe; 9. additional pipe; 10. clamp; 11. first ventilator; 12. connecting ring; 13. first mounting hole; 14. flange; 15. second mounting hole; 16. mounting part. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 - Figure 5 As shown, an underground space ventilation device for civil air defense projects includes an air inlet duct 1, an elbow 2, and a tee 3. Multiple air inlet ducts 1 are connected through the elbow 2 and the tee 3 to form a ventilation duct for the civil air defense project. The ventilation system in the civil air defense project adopts a variety of pipeline components, including air inlet duct 1, elbow 2 and tee 3, etc. These components play their own unique roles in the ventilation system. The air inlet duct 1, as the entrance channel of the ventilation system, undertakes the important task of introducing fresh air. The elbow 2 plays a role in changing the direction of airflow in the ventilation duct. In the ventilation system, due to the diversity of spatial layout and actual needs, the direction of airflow often needs to be adjusted. The tee 3, as a connecting component, plays a vital role in the ventilation duct. It can connect multiple air inlet ducts 1 into a complete ventilation network to achieve uniform distribution of air. By rationally utilizing the tee 3, a pipeline system that can adapt to different spatial layouts and ventilation needs can be constructed to improve the flexibility and reliability of the ventilation system.

[0024] The air inlet duct 1 is also equipped with a switching pipe 4, and the switching pipe 4 and the three-way pipe 3 can be connected with a branch pipe 8 through an adapter 6. The function of the branch pipe 8 is to expand the range of the ventilation system so that it can cover more areas. The branch pipe 8 is equipped with a first valve 7 for controlling the flow of airflow to meet different scenarios and needs. Its design fully considers the convenience of operation, so that users can easily open and close it. An additional pipe 9 is installed at the branch pipe 8. The coordinated use of the two significantly improves the working efficiency of the ventilation system. The diameter of the branch pipe 8 is half of the diameter of the air inlet duct 1, and the diameters of the branch pipe 8 and the additional pipe 9 are the same. The branch pipe 8 and the additional pipe 9 extend to the corners of the civil air defense project building, so that the ventilation system can cover every corner of the building and ensure air circulation in the entire space;

[0025] An auxiliary air intake device 5 is installed at the installation pipe 9 or the transfer pipe 4, and a clamp 10 is sleeved on the air intake duct 1 and the branch pipe 8. A mounting piece 16 is provided on the side wall of the clamp 10. The air intake duct 1, the branch pipe 8 and the installation pipe 9 are fixed to the civil air defense project building through the clamp 10 and the mounting piece 16. The mounting piece 16 is welded and fixed to the clamp 10. The clamp 10 is fixed by bolts and nuts. The auxiliary air intake device 5 is installed at the installation pipe 9 or the transfer pipe 4; the main function of this device is to introduce more air to meet the ventilation needs in the civil air defense project; the air intake duct 1 connects the auxiliary air intake device 5 and the branch pipe 8 to form a complete ventilation path, and the air intake duct 1, the branch pipe 8 and the installation pipe 9 need to be sleeved with a clamp 10; the function of the clamp 10 and the mounting piece 16 is to fix the ventilation duct to the civil air defense project building to prevent it from shifting or being damaged under the action of wind pressure, and the mounting piece 16 can further strengthen the fixing effect of the ventilation duct;

[0026] A flange 14 is provided at the air inlet of the air inlet duct 1. The main function of the flange 14 is to connect the air inlet duct 1 and the first fan 11, so as to achieve smooth air flow. In order to facilitate installation and maintenance, a second mounting hole 15 is provided on the flange 14. The first fan 11 is installed at the flange 14, which is the core component of the entire ventilation system and is responsible for sucking air from the air inlet duct 1 and transporting it through the impeller inside it. The first fan 11 is installed on the flange 14 through a connecting ring 12; a first mounting hole 13 adapted to the second mounting hole 15 is provided on the connecting ring 12, and a first mounting hole 13 adapted to the second mounting hole 15 is provided on the connecting ring 12. Such a design enables the connecting ring 12 to be firmly fixed on the flange 14, so as to ensure the stable operation of the first fan 11. The connecting ring 12 is welded on the outer shell of the first fan 11. The connecting ring 12 is welded on the outer shell of the first fan 11, which further enhances the stability. The flange 14 is designed as an integral part with the air inlet duct 1, and this design makes the entire ventilation system more compact in structure.

[0027] The auxiliary air inlet device 5 includes an auxiliary joint 51 and a second ventilator 54. The auxiliary joint 51 is installed on the installation pipe 9. The auxiliary joint 51 is connected to an auxiliary pipe 53 through a second valve 52. The auxiliary joint 51 is used to connect the second ventilator 54 to the installation pipe 9, thereby forming a complete ventilation system. In order to ensure the smoothness of the ventilation system, an auxiliary pipe 53 is arranged between the auxiliary joint 51 and the installation pipe 9. The second ventilator 54 is installed at the outer end of the auxiliary pipe 53; the outer end of the auxiliary pipe 53 is connected to the second ventilator 54; so that the auxiliary air duct system can effectively Fresh air is introduced into the additional pipe 9 to further improve the ventilation effect. The auxiliary pipe 53 and the second ventilator 54 are fixed by bolts. A sealing ring is provided at the connection between the auxiliary pipe 53 and the second valve 52. The sealing ring is installed at the connection to prevent air leakage and ensure the integrity of the ventilation system. The diameter of the auxiliary pipe 53 is consistent with the diameter of the auxiliary joint 51; a rubber ring is provided at the groove on the inner wall of the clamp 10, and the rubber ring is tightly attached to the outer wall of the air inlet duct 1, the branch pipe 8 and the additional pipe 9. The function of the rubber ring is to prevent air leakage at the connection, and it also helps to reduce vibration and improve the operating stability of the equipment.

[0028] The utility model can improve the ventilation device in the civil air defense building, and can be equipped with an auxiliary air inlet device at the three-way pipe, the transfer pipe, and the installation pipe. The auxiliary air inlet device is provided with a second valve, an auxiliary pipe, and a second ventilator. The second valve can be opened at the branch pipe and the installation pipe, and the second ventilator can be started to increase the air flow rate in the branch pipe and the installation pipe.

[0029] The above are the preferred embodiments of the utility model and the technical principles used therein. For those skilled in the art, without departing from the spirit and scope of the utility model, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the utility model shall fall within the protection scope of the utility model.

Claims

1. An underground space ventilation device for civil air defense engineering, comprising an air inlet duct (1), an elbow (2), and a tee (3), wherein a plurality of the air inlet ducts (1) are connected through the elbow (2) and the tee (3) to form a ventilation duct for the civil air defense engineering, characterized in that: The air inlet duct (1) is also provided with a transfer tube (4), and the transfer tube (4) and the three-way tube (3) can be connected to a branch tube (8) via a transfer joint (6); a first valve (7) is provided on the branch tube (8); an additional tube (9) is provided at the branch tube (8), and an auxiliary air inlet device (5) is provided at the additional tube (9) or the transfer tube (4); a clamp (10) is provided on the air inlet duct (1) and the branch tube (8), and a mounting member (16) is provided on the side wall of the clamp (10); a flange (14) is provided at the air inlet of the air inlet duct (1), and a second mounting hole (15) is provided on the flange (14); a first ventilator (11) is provided at the flange (14), and the first ventilator (11) is mounted on the flange (14) via a connecting ring (12); The auxiliary air intake device (5) comprises an auxiliary joint (51) and a second ventilator (54); the auxiliary joint (51) is installed on the installation pipe (9), and the auxiliary joint (51) is connected to an auxiliary pipe (53) via a second valve (52); and the second ventilator (54) is installed at the outer end of the auxiliary pipe (53).

2. An underground space ventilation device for civil air defense engineering according to claim 1, characterized in that: The diameter of the branch pipe (8) is half the diameter of the air inlet duct (1), the diameters of the branch pipe (8) and the additional pipe (9) are consistent, and the branch pipe (8) and the additional pipe (9) extend to the corners of the civil air defense building.

3. An underground space ventilation device for civil air defense engineering according to claim 2, characterized in that: The air inlet duct (1), the branch pipe (8) and the additional pipe (9) are fixed to the civil air defense building via a clamp (10) and a mounting piece (16); the mounting piece (16) is welded and fixed to the clamp (10); and the clamp (10) is fixed via bolts and nuts.

4. An underground space ventilation device for civil air defense engineering according to claim 3, characterized in that: The connecting ring (12) is provided with a first mounting hole (13) adapted to the second mounting hole (15), and the connecting ring (12) is welded to the outer shell of the first ventilator (11), and the flange (14) is designed as an integral unit with the air inlet duct (1).

5. An underground space ventilation device for civil air defense engineering according to claim 4, characterized in that: The auxiliary pipe (53) and the second ventilator (54) are fixed by bolts, and a sealing ring is sleeved at the connection between the auxiliary pipe (53) and the second valve (52), and the diameter of the auxiliary pipe (53) is consistent with the diameter of the auxiliary joint (51).

6. An underground space ventilation device for civil air defense engineering according to claim 5, characterized in that: A rubber ring is provided at the groove on the inner wall of the clamp (10), and the rubber ring is tightly attached to the outer walls of the air inlet duct (1), the branch pipe (8) and the installation pipe (9).

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