Civil air defense dust filtration chamber

Abstract

The utility model discloses a dust filtration chamber for civil air defense, which is used for civil air defense engineering and comprises a closed wall, a hot galvanizing pipe, a plug valve, an inclined micromanometer and a connecting hose, and the closed wall is used for bearing the dust filtration chamber for civil air defense; the hot galvanizing pipe is arranged on the sealing wall in a penetrating manner; a plug valve is detachably installed at the end, away from the closed wall, of the hot galvanizing pipe, an inclined micromanometer is arranged on one side of the hot galvanizing pipe, and a connecting hose is arranged at the detection end of the inclined micromanometer. According to the utility model, the inclined micromanometer, the connecting hose, the welding piece, the ball valve and the hot-dip galvanized pipe are arranged, so that the inclined micromanometer can detect the pressure in the hot-dip galvanized pipe in real time through the diffusion chamber during use, and then a signal is transmitted to the display through the control panel, so that an operator can observe the pressure difference in the hot-dip galvanized pipe in real time; once a problem occurs, repair treatment can be carried out, so that the problem of the filtering structure of the dust filtration chamber for civil air defense is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dust filtering for civil air defense, in particular to a dust filtering room for civil air defense. BACKGROUND

[0002] People's air defense refers to the measures and actions taken to mobilize and organize the masses to prepare for enemy air attacks and eliminate the consequences of air attacks, referred to as civil air defense. During civil air defense activities, designated sites are required. Since civil air defense activities generally include ground air defense and field air defense, the corresponding dust filtering room for civil air defense is needed when used.

[0003] The dust filtering room for civil air defense filters large particles of dust in the air during use to ensure safety when people in the civil air defense space breathe. However, if the galvanized pipe used for filtering inside the room is damaged and leaks, it will cause the entire filtering equipment of the dust filtering room for civil air defense to malfunction. Therefore, a dust filtering room for civil air defense with a differential pressure detection structure inside the galvanized pipe is needed. SUMMARY

[0004] The utility model aims to provide a dust filtering room for civil air defense to solve the problem of damage and leakage of the galvanized pipe used for filtering inside the dust filtering room for civil air defense, which will cause the entire filtering equipment of the dust filtering room for civil air defense to malfunction.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dust filtering room for civil air defense, which is used in civil air defense projects and includes a sealed wall, a hot-dip galvanized pipe, a plug valve, an inclined micro-pressure gauge, and a connecting hose. The sealed wall is used to support the dust filtering room for civil air defense. The hot-dip galvanized pipe is arranged through the sealed wall. A plug valve is detachably installed at the end of the hot-dip galvanized pipe away from the sealed wall. An inclined micro-pressure gauge is arranged on one side of the hot-dip galvanized pipe. The detection end of the inclined micro-pressure gauge is provided with a connecting hose. The end of the connecting hose away from the inclined micro-pressure gauge is connected to the output end of the plug valve. The inclined micro-pressure gauge is used to receive the air pressure output by the plug valve through the connecting hose for detection.

[0006] Preferably, the hot-dip galvanized pipe corner part is provided with an elbow for connecting adjacent hot-dip galvanized pipes at the corner position.

[0007] Preferably, the connection part of the dust filtering room for civil air defense and the sealed wall is provided with a sealed wing ring for fixing the dust filtering room for civil air defense on the sealed wall. The sealed wing ring is fixed to the outer surface of the sealed wall through locking bolts and locking grooves.

[0008] Preferably, the human defense dust filter chamber further comprises a diffusion chamber, a dust filter chamber and a filter absorber chamber: the diffusion chamber is arranged inside the closed wall; the dust filter chamber is arranged inside the closed wall adjacent to one side of the diffusion chamber; the filter absorber chamber is arranged inside the closed wall adjacent to the dust filter chamber away from the diffusion chamber, and the dust filter chamber, the filter absorber chamber and the diffusion chamber are connected through the galvanized pipe.

[0009] Preferably, the detection end of the galvanized pipe is provided with a differential pressure measuring pipe and a radioactive monitoring sampling pipe, and the differential pressure measuring pipe and the radioactive monitoring sampling pipe are connected with the galvanized pipe through a welding piece and a duct steel plate.

[0010] Preferably, the detection end of the galvanized pipe is provided with a differential pressure measuring pipe and a radioactive monitoring sampling pipe, and the differential pressure measuring pipe and the radioactive monitoring sampling pipe are connected with the galvanized pipe through a welding piece and a duct steel plate.

[0011] Preferably, the detection end of the galvanized pipe is provided with a differential pressure measuring pipe and a radioactive monitoring sampling pipe, and the differential pressure measuring pipe and the radioactive monitoring sampling pipe are connected with the galvanized pipe through a welding piece and a duct steel plate.

[0012] Compared with the prior art, the human defense dust filter chamber has the beneficial effects that: the human defense dust filter chamber is provided with an inclined micro pressure gauge, a connecting hose, a welding piece, a ball valve and a galvanized pipe, the inclined micro pressure gauge can detect the real-time pressure in the galvanized pipe through the diffusion chamber during use, the signal is transmitted to the display on the control panel, so that the operator can observe the pressure difference in the galvanized pipe in real time, and once a problem occurs, the problem can be repaired, so as to avoid problems of the filtering structure of the human defense dust filter chamber. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the dust filter chamber pressure difference measuring pipe and the sampling pipe of the utility model;

[0014] Figure 2 It is a schematic diagram of the pressure measuring pipe penetrating the closed partition wall facade structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the pressure measuring pipe penetrating the closed partition wall facade structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the pressure measuring pipe structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the radioactive monitoring sampling pipe structure of the utility model.

[0018] In the drawings:

[0019] 1. Diffuser chamber; 2. Hot-dip galvanized pipe; 21. Duct steel plate; 22. Welded parts; 23. Ball valve; 24. Gasket; 25. Lock nut; 3. Dust filter chamber; 4. Filter absorber chamber; 5. Elbow; 51. Sealed wing ring; 6. Inclined micromanometer; 61. Connecting hose; 7. Plug valve; 8. Sealed wall. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figures 1-5 As shown, a dust filter chamber for civil defense is used in civil defense projects. It includes a sealed wall 8, a hot-dip galvanized pipe 2, a stopcock valve 7, an inclined micromanometer 6, and a connecting hose 61. The sealed wall 8 supports the dust filter chamber and also supports the hot-dip galvanized pipe 2 for use throughout the chamber. The hot-dip galvanized pipe 2 runs through the sealed wall 8 and is used for filtration within the chamber. A stopcock valve 7 is detachably installed at the end of the hot-dip galvanized pipe 2 away from the sealed wall 8. The stopcock valve 7 is DN15 in size and is a valve that allows the valve plug to connect or separate from the valve body by rotating 90 degrees. It uses a plug with a through hole as the opening and closing element, and the valve plug rotates with the valve stem to achieve the opening or closing action. The plug body of the plug valve 7 is mostly conical or cylindrical, and it forms a sealing pair with the conical bore surface of the valve body. This design makes the plug valve 7 simple in structure, quick to open and close, and with low fluid resistance. The above is the disclosed technology and will not be described in detail below.

[0023] A tilting micromanometer 6 is installed on one side of the hot-dip galvanized pipe 2. The tilting micromanometer 6 has a specification of 0-200 Pa. Specifically, the tilting micromanometer 6 consists of a tilting measuring tube and a wide container. The measuring tube is filled with a working fluid, typically 95% alcohol. When the pressure being measured is applied to the tilting tube, the working fluid will experience a vertical change in height. More specifically, when measuring positive pressure, the higher pressure is connected to the wide container, while the lower pressure is connected to the tilting tube. This design ensures that the difference between the rise in height of the working fluid in the tilting tube and the fall in height in the wide container reflects the measured pressure difference. This is publicly available technology and will not be elaborated further below.

[0024] The detection end of the inclined micro-pressure gauge 6 is provided with a connecting hose 61 for connecting the stop valve 7 and the inclined micro-pressure gauge 6 for detection, the end of the connecting hose 61 away from the inclined micro-pressure gauge 6 is connected with the output end of the stop valve 7, and the inclined micro-pressure gauge 6 is used to receive the air pressure output by the stop valve 7 through the connecting hose 61 for detection.

[0025] The corner portion of the hot-dip galvanized pipe 2 is provided with an elbow 5 for connecting the adjacent hot-dip galvanized pipes 2 located at the corner position, specifically, the elbow 5 and the hot-dip galvanized pipe 2 are fixed, and the inside of the elbow 5 and the hot-dip galvanized pipe 2 is designed as a cavity, and the cavities are in a communication state.

[0026] The connecting portion of the dust filtering room for civil air defense and the airtight wall 8 is provided with an airtight wing ring 51 for fixing the dust filtering room for civil air defense on the airtight wall 8, the airtight wing ring 51 is fixed with the outer surface of the airtight wall 8 through locking bolts and locking screw grooves, in use, the hot-dip galvanized pipe 2 and the airtight wing ring 51 are sleeved, and then are fixed with the outer surface of the airtight wall 8 through the locking bolts and the locking screw grooves.

[0027] The detection end of the hot-dip galvanized pipe 2 is provided with a differential pressure measuring pipe and a radioactive monitoring sampling pipe, as shown in Figure 4 , Figure 5 , the differential pressure measuring pipe and the radioactive monitoring sampling pipe are connected with the hot-dip galvanized pipe 2 through a welding piece 22 and a wind pipe steel plate 21, the hot-dip galvanized pipe 2 is welded with the differential pressure measuring pipe and the radioactive monitoring sampling pipe through the welding piece 22, so as to avoid the phenomenon of air leakage in use, wherein Figure 5 , part of the airflow direction flows from right to left.

[0028] The detection end of the hot-dip galvanized pipe 2 is also provided with a booster pipe, and the booster pipe and the hot-dip galvanized pipe 2 are provided with a gasket 24 and a lock nut 25 for detachably connecting the hot-dip galvanized pipe 2 and the wind pipe, as shown in Figure 3 .

[0029] The end of the hot-dip galvanized pipe 2 on the differential pressure measuring pipe and the radioactive monitoring sampling pipe is provided with a ball valve 23, which is closed when not in use and opened when in use, specifically, the working principle of the inclined micro-pressure gauge 6 is to control the on-off of the fluid by rotating the ball. The opening and closing part of the inclined micro-pressure gauge 6 is a ball with a circular channel, and the ball is connected with the valve rod. When the handle or the driving device such as electric, pneumatic or hydraulic rotates the valve rod, the ball will also rotate. After the ball rotates 90 degrees, the shape of the channel in the valve body will be changed, so as to realize the opening or closing of the valve. The above is the disclosed technology, and the following will not be described.

[0030] The effect achieved by the whole embodiment one is that, as shown in Figure 2As shown, this pressure measuring device is installed in the chemical defense duty room at the air inlet. The specific location is determined by the individual project design. The outdoor end of the pressure measuring pipe is led to the protective outer passage (or other place that can accurately reflect the atmospheric pressure outside the project), with the opening facing downwards.

[0031] Example 2

[0032] like Figures 1-5 As shown, a dust filter chamber for civil defense includes a diffusion chamber 1, a dust filter chamber 3, and a filter absorber chamber 4. The diffusion chamber 1 is located inside a sealed wall 8. The dust filter chamber 3 is located inside the sealed wall 8 on one side adjacent to the diffusion chamber 1. The filter absorber chamber 4 is located inside the sealed wall 8 on the side of the dust filter chamber 3 away from the diffusion chamber 1. The dust filter chamber 3, the filter absorber chamber 4, and the diffusion chamber 1 are connected by a hot-dip galvanized pipe 2. Specifically, the gas to be filtered is drawn into the filter absorber chamber 4 through the hot-dip galvanized pipe 2 for filtration and absorption, then enters the dust filter chamber 3 through the hot-dip galvanized pipe 2 for dust filtration, and finally, qualified gas is discharged through the diffusion chamber 1.

[0033] Working principle: When using this air-raid shelter dust filter chamber, an external power supply is required. First, the gas to be filtered is drawn into the filter absorber chamber 4 through the hot-dip galvanized pipe 2 for filtration and absorption. Then, it enters the dust filter chamber 3 through the hot-dip galvanized pipe 2 for dust filtration. Finally, the qualified gas is discharged through the diffusion chamber 1. When testing the air pressure inside the hot-dip galvanized pipe 2, if... Figure 2 As shown, this pressure measuring device is installed in the chemical defense duty room at the air inlet. The specific location is determined by the individual project design. The outdoor end of the pressure measuring pipe is led to the protective outer passage (or other place that can accurately reflect the atmospheric pressure outside the project), with the opening facing downwards.

[0034] Secondly, as Figures 3-5 When clean air ventilation and filtration ventilation share a single air supply fan, a booster pipe must be installed. The inlet of the booster pipe, located inside the duct, should face the airflow direction and be centered within the duct. The outlet should be located where the airflow is stable at the fan outlet. The booster pipe is made of DN25 hot-dip galvanized steel pipe and equipped with a ball valve 23. The differential pressure measuring pipe before and after the dust collector and filter absorber is made of DN15 galvanized steel pipe and equipped with a ball valve 23 at the end. An air radioactivity monitoring sampling pipe is installed on the inlet duct of the dust collector (not required for Class B air-raid shelters). The sampling pipe is made of DN32 hot-dip galvanized steel pipe and equipped with a ball valve 23 at the end. The inlet of the sampling pipe, located inside the duct, should face the airflow direction and be centered within the duct. All welds must be fully welded using weldment 22, and leakage is not allowed. The 5.3m thick steel plate duct is painted with two coats of red lead primer and two coats of gray tinted paint.

[0035] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A dust filtering chamber for civil air defense, the dust filtering chamber being used in a civil air defense project, characterized in that, The utility model relates to a dust filter room for civil air defense, comprising: airtight wall for bearing the dust filter room for civil air defense; hot-dip galvanized pipe arranged through the airtight wall; a tap valve is detachably installed at the end of the hot-dip galvanized pipe away from the airtight wall; an inclined micro-pressure gauge is arranged on one side of the hot-dip galvanized pipe, and the detection end of the inclined micro-pressure gauge is provided with a connecting hose, the end of the connecting hose away from the inclined micro-pressure gauge is connected in communication with the output end of the tap valve, and the inclined micro-pressure gauge is used for receiving the air pressure output by the tap valve through the connecting hose to detect.

2. The dust filtering chamber according to claim 1, characterized in that: The elbow is arranged at the corner part of the hot-dip galvanized pipe, and is used for connecting the adjacent hot-dip galvanized pipes at the corner position.

3. The dust filtering chamber according to claim 2, characterized in that: The connecting part of the dust filter room for civil air defense and the airtight wall is provided with an airtight wing ring for fixing the dust filter room for civil air defense on the airtight wall, and the airtight wing ring is fixed on the outer surface of the airtight wall through locking bolts and locking screw grooves.

4. The dust filtering chamber according to claim 3, characterized in that: The dust filter room for civil air defense further comprises: a diffusion chamber arranged inside the airtight wall; a dust filter room arranged inside the airtight wall adjacent to one side of the diffusion chamber; a filter absorber room arranged inside the airtight wall adjacent to one side of the dust filter room away from the diffusion chamber, and the dust filter room, the filter absorber room and the diffusion chamber are connected in communication through the hot-dip galvanized pipe.

5. The dust filtering chamber according to claim 4, characterized in that: A differential pressure measuring pipe and a radioactive monitoring sampling pipe are arranged at the detection end of the hot-dip galvanized pipe, and the differential pressure measuring pipe and the radioactive monitoring sampling pipe are connected with the hot-dip galvanized pipe through a welding piece and a wind pipe steel plate.

6. The dust filtering chamber according to claim 5, characterized in that: A booster pipe is further arranged at the detection end of the hot-dip galvanized pipe, and a gasket and a lock nut are arranged between the booster pipe and the hot-dip galvanized pipe, so as to detachably connect the hot-dip galvanized pipe and the wind pipe.

7. The dust filtering chamber according to claim 6, characterized in that: Ball valves are arranged at the ends of the hot-dip galvanized pipes on the differential pressure measuring pipe and the radioactive monitoring sampling pipe.

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