Dual-purpose ventilation system with poison filtering and ventilation functions for air defense and fire fighting of people

Abstract

The invention discloses a civil air defense and fire protection dual-purpose ventilation system with a poison filtering and ventilation function, which comprises a personnel sheltering engineering shared ventilation system, the personnel sheltering engineering shared ventilation system adopts a civil air defense, fire protection and ventilation dual-purpose fan which has the functions of air exhaust, smoke exhaust and wartime air inlet at ordinary times, and the fan is provided with three connector air connecting pipes, one interface is a usual air exhaust and smoke exhaust outlet and is connected into the ventilation shaft through a usual air pipe path, one interface is a wartime air inlet, the wartime air pipe path is connected with the ventilation shaft, the other interface is connected with an air pipe pipeline system in an engineering main body, the three interfaces are respectively provided with valves for control, and corresponding switching operation is carried out corresponding to different use working conditions. The whole underground ventilation system can guarantee a good ventilation effect at ordinary times and wartime, the number of adopted equipment is small, the occupied ground area is small, peacetime and wartime conversion operation is simple, efficiency is high, and toxic substances in air can be effectively filtered out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ventilation systems, in particular to a people's air defense and fire dual-purpose ventilation system provided with a filter ventilation system. BACKGROUND

[0002] The ventilation system of a people's air defense project is one of the most important core systems, which not only guarantees the air quality and comfort during normal use, but also provides clean air for shelter personnel and maintains the necessary overpressure inside the project to prevent the infiltration of external contaminated air and protect the safety of personnel in wartime or when subjected to nuclear and biochemical weapons attacks.

[0003] Currently, the people's air defense project generally adopts an independent setting mode of normal and wartime ventilation systems, that is, the normal and wartime ventilation systems and equipment are separately set, the vertical shaft, ventilation port and machine room are independently separated, and only the ventilation pipeline system in the project main body is shared. Under this mode, the equipment occupies a large area in the people's air defense area, the daily maintenance workload of the ventilation equipment is extremely heavy, and the conversion workload during the conversion of normal and wartime is also relatively large. At the same time, since only the wartime ventilation equipment is used, the normal daily maintenance is not started, and some projects have wartime ventilation equipment that is out of repair, damaged, even destroyed and removed, which seriously restricts the full play of the wartime protection efficiency of the people's air defense project.

[0004] Disadvantages of the independent setting mode of normal and wartime ventilation systems: The ventilation equipment occupies a large area in the project: the normal ventilation system needs to be separately set with a gas collection chamber and a ventilation machine room, and the wartime ventilation system needs to be separately set with a diffusion chamber, a dust removal chamber, a filter chamber and a ventilation machine room, and the equipment room occupies a total area of about 100 square meters, which is contrary to the demand for intensive and efficient use of underground space; Poor economy: large number of fans, repeated investment, and because the equipment occupies a large area in the project, the number of parking spaces available during normal use is reduced, reducing the economic benefits during normal working conditions; War protection efficiency is damaged: the wartime ventilation equipment is idle for a long time during normal use, and lacks effective preventive maintenance means, resulting in a large number of equipment damage or even removal, which seriously damages the wartime protection efficiency of the people's air defense project; Complex and inefficient normal and wartime conversion operation: manual switching of the on-off of the air valve in the normal and wartime machine rooms according to the system diagram and the plane layout diagram is required, which is complex and time-consuming, therefore, an improved technology is urgently needed to solve the problem existing in the prior art. SUMMARY

[0005] The purpose of this invention is to provide a dual-purpose ventilation system for civil defense and fire fighting, which uses a single fan capable of both peacetime exhaust and smoke extraction and wartime air intake. The fan has three interfaces for connecting to the ductwork: one interface is the peacetime exhaust and smoke extraction outlet, connected to the ventilation shaft via the peacetime duct path; one interface is the wartime air intake inlet, connected to the ventilation shaft via the wartime duct path; and the other interface connects to the ductwork system within the main building. Each of the three interfaces is equipped with a valve for control, allowing for switching operations according to different operating conditions. This ensures that the entire underground ventilation system can guarantee good ventilation in both peacetime and wartime, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-purpose ventilation system for civil air defense and fire fighting, which includes a ventilation system for personnel shelters, wherein the ventilation system for personnel shelters is provided with an air collection chamber, a diffusion chamber, a dust removal chamber, a filtration chamber, and a peacetime / wartime combined machine room; The diffusion chamber is equipped with an explosion-proof wave valve. The dust removal chamber is equipped with an oil mesh dust filter. The filter chamber is equipped with an airtight pipe, and the airtight pipe is equipped with a manual or electric dual-use airtight valve. The combined peacetime and wartime equipment room is equipped with an exhaust pipe above it, which is connected to the first interface of the civil air defense fire ventilation fan. The combined peacetime and wartime equipment room is equipped with a booster pipe inside.

[0007] Preferably, a sealed channel is provided on one side of the gas collection chamber.

[0008] Preferably, a shared ventilation shaft is provided between the diffusion chamber and the sealed channel.

[0009] Preferably, the filtration chamber is connected to the diffusion chamber and the dust removal chamber by a pipeline, and the pipeline is equipped with a valve; An airtight duct is provided between the filtration chamber and the combined peacetime and wartime equipment room. The airtight duct is equipped with a filter absorber and a manual / electric dual-use airtight valve. One end of the airtight duct is connected to the second interface of the civil air defense fire ventilation dual-use fan.

[0010] Preferably, the personnel shelter project is equipped with a common air duct in the shared ventilation system. One end of the common air duct is connected to the third interface of the civil air defense and fire-fighting ventilation fan, and the other end of the common air duct can be equipped with a branch air duct with an air outlet.

[0011] Preferably, the dust removal chamber is equipped with a radioactive monitoring sampling tube and a pressure measuring tube; the airtight pipeline is equipped with a pressure measuring tube, an exhaust gas monitoring sampling tube, and an air volume measuring device.

[0012] Preferably, the personnel shelter engineering shared ventilation system is sequentially provided with a protective airtight door, an airtight channel, an airtight door, a gas collecting chamber, an exhaust pipe, a valve and the like on a ventilation path in a normal ventilation state, and then connected to a civil air defense and fire ventilation dual-purpose fan, the fan is connected to a shared air pipe and an air outlet in the engineering, the airflow flow line in the normal ventilation state is as follows: the engineering main body, the air outlet, the shared air pipe, the civil air defense and fire ventilation dual-purpose fan, the exhaust pipe, the gas collecting chamber, the airtight channel, the shared ventilation shaft and the engineering outside. The personnel shelter engineering shared ventilation system meets the protection and chemical defense of the personnel shelter engineering in a wartime ventilation state, is sequentially provided with an explosion wave valve, a diffusion chamber, an oil screen dust filter, a dust removal chamber, an airtight pipeline, a hand electric airtight valve, a filter absorber and the like on a ventilation path, and then connected to a civil air defense and fire ventilation dual-purpose fan, the fan is connected to a shared air pipe and an air outlet in the engineering, and the airflow flow line in the wartime ventilation state is as follows: the engineering outside, the shared ventilation shaft, the explosion wave valve, the diffusion chamber, the oil screen dust filter, the dust removal chamber, the airtight pipeline, the hand electric airtight valve, the filter absorber, the civil air defense and fire ventilation dual-purpose fan, the shared air pipe, the air outlet and the engineering main body.

[0013] Compared with the prior art, the personnel shelter engineering shared ventilation system has the following beneficial effects: (1) The dust removal chamber is provided with a radioactive monitoring sampling pipe, a pressure measuring pipe, a tail gas monitoring sampling pipe and an air volume measuring device, so that the gas in the dust removal chamber can be sampled and detected in real time, and the safety of the air inlet of the ventilation system is ensured. (2) The personnel shelter engineering shared ventilation system adopts a civil air defense and fire ventilation dual-purpose fan, which has the functions of normal exhaust, smoke exhaust and wartime air inlet, and the fan is provided with three interfaces connected to air pipes, one interface is a normal exhaust and smoke exhaust outlet connected to the ventilation shaft through a normal air pipe path, one interface is a wartime air inlet connected to the ventilation shaft through a wartime air pipe path, and the other interface is connected to the air pipe pipeline system in the engineering main body, and the three interfaces are respectively provided with valves for corresponding switching operation under different working conditions. The entire underground ventilation system can ensure good ventilation in normal times and wartime, the number of devices used is small, the occupied ground area is small, the conversion operation is simple and efficient, and the toxic substances in the air can be effectively filtered. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a personnel shelter engineering shared ventilation system layout structure schematic diagram of the present application; Fig. 2 It is a personnel shelter engineering shared ventilation system principle diagram of the present application; Fig. 3 It is a civil air defense and fire ventilation dual-purpose fan air inlet and outlet schematic diagram of the present application.

[0015] In the figure: 1, blast wave valve; 2, oil screen dust filter; 3, air-tight pipeline; 4, hand-electric dual-purpose airtight valve; 5, filter absorber; 6, people's air defense and fire ventilation dual-purpose fan; 7, exhaust pipe; 8, shared air pipe; 9, air outlet; 10, shared ventilation shaft; 11, airtight passage; 12, gas collection chamber; 13, diffusion chamber; 14, dust removal chamber; 15, filter chamber; 16, peacetime and wartime combined machine room; 17, engineering main body; 19, people's air defense and fire ventilation dual-purpose system; 20, booster pipe. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0017] Please refer to Figs. 1-3 The present application provides a technical solution: a people's air defense and fire dual-purpose ventilation system provided with a filter ventilation system, comprising a people's air defense and fire ventilation dual-purpose system 19, wherein the people's air defense and fire ventilation dual-purpose system 19 is provided with a gas collection chamber 12, a diffusion chamber 13, a dust removal chamber 14, a filter chamber 15, and a peacetime and wartime combined machine room 16. An airtight passage 11 is arranged on one side of the gas collection chamber 12, an explosion-proof valve 1 is arranged on the diffusion chamber 13, and a shared ventilation shaft 10 is arranged between the diffusion chamber 13 and the airtight passage 11.

[0018] An oil screen dust filter 2 is arranged on the dust removal chamber 14. An air-tight pipeline 3 is arranged in the filter chamber 15, a hand-electric dual-purpose airtight valve 4 is arranged on the air-tight pipeline 3, the filter chamber 15 is connected to the diffusion chamber 13 and the dust removal chamber 14 by a pipeline, and a valve is arranged on the pipeline.

[0019] An exhaust pipe 7 is arranged above the peacetime and wartime combined machine room 16, the exhaust pipe 7 is connected to a first interface of a people's air defense and fire ventilation dual-purpose fan 6, and a booster pipe 20 is arranged in the peacetime and wartime combined machine room 16.

[0020] An air-tight pipeline 3 is arranged between the filter chamber 15 and the peacetime and wartime combined machine room 16, a filter absorber 5 and a hand-electric dual-purpose airtight valve 4 are arranged on the air-tight pipeline 3, one end of the air-tight pipeline 3 is connected to a second interface of the people's air defense and fire ventilation dual-purpose fan 6, and the people's air defense and fire ventilation dual-purpose fan 6 is arranged at the joint of the air-tight pipeline 3 and the exhaust pipe 7.

[0021] The personnel shelter engineering shared ventilation system 19 is matched with a shared air pipe 8, one end of the shared air pipe 8 is connected to the third interface of the air defense and fire ventilation dual-purpose fan 6, and the other end of the shared air pipe 8 can be provided with a branch air pipe, the branch air pipe is matched with an air outlet 9, and the normal time exhaust and smoke exhaust and wartime air inlet requirements of the engineering main body 17 are met.

[0022] The dust removal chamber 14 is matched with a radioactive monitoring sampling pipe, a pressure measuring pipe, a tail gas monitoring sampling pipe and an air volume measuring device, so that the gas in the dust removal chamber is sampled and detected in real time, and the safety of the air inlet of the ventilation system is ensured.

[0023] The ventilation state of the air defense engineering dual-state compatible ventilation system is: In the normal time ventilation state of the personnel shelter engineering shared ventilation system 19, a protective airtight door, an airtight channel, an airtight door, a gas collection chamber, an exhaust pipe, a valve and the like are sequentially arranged on the ventilation path, and then connected to the air defense and fire ventilation dual-purpose fan, the fan is connected to the shared air pipe and the air outlet in the engineering, the airflow flow line in the normal time ventilation state is the air outlet 9, the shared air pipe 8, the air defense and fire ventilation dual-purpose fan 6, the exhaust pipe 7, the gas collection chamber 12, the airtight channel 11, the shared ventilation shaft and the engineering outside.

[0024] In the wartime ventilation state of the personnel shelter engineering shared ventilation system 19, a blast wave valve, a diffusion chamber, an oil screen dust filter, a dust removal chamber, an airtight pipeline, a hand and electric dual-purpose airtight valve, a filter absorber and a plug valve are sequentially arranged on the ventilation path, and then connected to the air defense and fire ventilation dual-purpose fan, the fan is connected to the shared air pipe and the air outlet in the engineering, the airflow flow line in the wartime ventilation state is the engineering outside, the shared ventilation shaft 10, the blast wave valve 1, the diffusion chamber 13, the oil screen dust filter 2, the dust removal chamber 14, the airtight pipeline 3, the hand and electric dual-purpose airtight valve 4, the filter absorber 5, the air defense and fire ventilation dual-purpose fan 6, the shared air pipe 8, the air outlet 9 and the engineering main body 17.

[0025] The personnel shelter engineering shared ventilation system 19 adopts one air defense and fire ventilation dual-purpose fan, has the functions of normal time exhaust, smoke exhaust and wartime air inlet, the fan is provided with three interfaces connected to the air pipe, one interface is a normal time exhaust and smoke exhaust outlet, connected to the ventilation shaft through the normal time air pipe path, one interface is a wartime air inlet inlet, connected to the shared ventilation shaft 10 through the wartime air pipe path, and the other interface is connected to the air pipe pipeline system in the engineering main body, the three interfaces are respectively provided with valves for controlling and corresponding switching operations under different working conditions, the entire underground ventilation system can ensure good ventilation in normal time and wartime, the number of devices used is small, the occupied ground area is small, the conversion operation is simple and efficient, and the toxic substances in the air can be effectively filtered.

[0026] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A civil air defense and fire dual-purpose ventilation system provided with a filter ventilation, comprising a civil air defense shelter ventilation system (19), characterized in that: The personnel shelter engineering combined ventilation system (19) is provided with a gas collecting chamber (12), a diffusion chamber (13), a dust removing chamber (14), a filter poison chamber (15) and a peacetime-war combined machine room (16); The diffusion chamber (13) is provided with an anti-explosion wave valve (1); The dust removing chamber (14) is provided with an oil screen dust filter (2); The filter poison chamber (15) is provided with an airtight pipeline (3) and a hand-electric dual-purpose airtight valve (4); The peacetime-war combined machine room (16) is provided with an exhaust pipeline (7) and a people air defense and fire ventilation dual-purpose fan (6) first interface; The filter poison chamber (15) and the diffusion chamber (13) and the dust removing chamber (14) are connected by pipelines, and the pipelines are provided with valves; The filter poison chamber (15) and the peacetime-war combined machine room (16) are connected by an airtight pipeline (3), and the airtight pipeline (3) is provided with a filter absorber (5) and a hand-electric dual-purpose airtight valve (4), and one end of the airtight pipeline (3) is connected to the people air defense and fire ventilation dual-purpose fan (6) second interface; The personnel shelter engineering combined ventilation system (19) is provided with a common air pipeline (8), one end of the common air pipeline (8) is connected to the people air defense and fire ventilation dual-purpose fan (6) third interface, the other end of the common air pipeline (8) is provided with branch air pipelines, and the branch air pipelines are provided with air outlets (9) and meet the peacetime exhaust and smoke exhaust and wartime air inlet requirements of the engineering main body (17).

2. The dual-purpose ventilation system of claim 1, wherein: One side of the gas collecting chamber (12) is provided with a closed channel (11).

3. The dual-purpose ventilation system of claim 1, wherein: The diffusion chamber (13) and the closed channel (11) are connected by a common ventilation shaft (10).

4. The dual-purpose ventilation system of claim 1, wherein: The filter poison chamber (15) and the diffusion chamber (13) and the dust removing chamber (14) are connected by pipelines, and the pipelines are provided with valves; The filter poison chamber (15) and the peacetime-war combined machine room (16) are connected by an airtight pipeline (3), and the airtight pipeline (3) is provided with a filter absorber (5) and a hand-electric dual-purpose airtight valve (4), and one end of the airtight pipeline (3) is connected to the people air defense and fire ventilation dual-purpose fan (6) second interface.

5. The dual-purpose ventilation system of claim 1, wherein: In the peacetime ventilation state of the personnel shelter engineering combined ventilation system (19), the ventilation path is sequentially provided with a protection airtight door, a closed channel, an airtight door, a gas collecting chamber, an exhaust pipeline, a valve and the like, and then connected to the people air defense and fire ventilation dual-purpose fan, the fan is connected to the common air pipeline and the air outlet in the engineering, and the air flow line in the peacetime ventilation state is engineering main body (17), air outlet (9), common air pipeline (8), people air defense and fire ventilation dual-purpose fan (6), exhaust pipeline (7), gas collecting chamber (12), closed channel (11), common ventilation shaft (10) and engineering outside. The personnel shelter engineering shared ventilation system (19) meets the protection and chemical protection of the personnel shelter engineering in wartime ventilation state. An anti-explosion wave valve, a diffusion chamber, an oil screen dust filter, a dust removal chamber, an airtight pipeline, a hand and electric close valve, a filter absorber, and a plug valve are sequentially arranged on a ventilation path, and then connected to a civil air defense and fire ventilation dual-purpose fan. The fan is connected to a shared air duct and an air outlet in the engineering. In the wartime ventilation state, the airflow streamline is from outside the engineering, the shared ventilation shaft (10), the anti-explosion wave valve (1), the diffusion chamber (13), the oil screen dust filter (2), the dust removal chamber (14), the airtight pipeline (3), the hand and electric close valve (4), the filter absorber (5), the civil air defense and fire ventilation dual-purpose fan (6), the shared air duct (8), the air outlet (9), and the engineering main body (17).

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