Construction Method of Air Shaft Partition Wall in the Air Defense Project of Coastal Buildings

Abstract

The present invention provides a construction method for the air duct partition wall of the air defense project fan room in coastal buildings, which relates to the technical field of air defense project fan room construction. Pour a 400-mm-high C30 concrete water stop sill at the position of the air duct partition wall between the fan room and the air outlet chamber in advance; masonry the air duct partition wall to the bottom position of the air duct; install a connecting pipe in the fan room, place one end of the air duct on the air duct partition wall, and connect the other end to the connecting pipe by using a canvas expansion pipe; continue to masonry the air duct partition wall until completion; install a steel rat-proof net on the side of the air outlet chamber at the air duct outlet; install a valve on the fan room side of the Φ100 PVC drain pipe reserved in the 400-mm-high C30 concrete water stop sill and lead it to the drainage ditch of the air defense project in coastal buildings; install a wire mesh louver on the outer wall of the air duct outside the air outlet chamber. The present invention realizes finding the accurate horizontal position of the air duct on the air duct partition wall; solving the problems of entering and leaving the air outlet chamber, so as to install and replace the rat-proof net and perform the later cleaning in the air outlet chamber.

Description

Technical Field

[0001] The present invention provides a construction method for the air shaft partition wall of the fan room in coastal building civil air defense projects, which relates to the technical field of civil air defense project fan room construction. Background Art

[0002] For the installation of the air duct of the air conditioning system in coastal building civil air defense projects, at the air outlet, the conventional method is: fix one end of the air duct on the concrete roof of the coastal building civil air defense project by using a suspension rod, and directly place the other end on the ground air shaft partition wall, and then carry out the partition wall construction. As is well known, the ventilation of coastal building civil air defense projects is carried out by using a fan to send and exhaust air through the air duct and the air shaft. If no certain measures are taken, it often leads to rats and nocturnal flying birds getting into the air duct and affecting the operation of the fan. Moreover, in bad weather, rainwater backflows into the air inlet and outlet chambers, causing leakage in the fan room and long-term dampness, which affects the service life of the connecting pipes.

[0003] In view of this, the present invention is specifically proposed. Summary of the Invention

[0004] The technical problems to be solved by the present invention are: 1. Find out the horizontal accurate position of the air duct on the air shaft partition wall; 2. Solve the problem of how to enter and exit the air inlet and outlet chambers, so as to install and replace the anti-rat net and carry out the later cleaning in the air inlet and outlet chambers.

[0005] In order to solve the above technical problems, the inventors have obtained the technical solution of the present invention through practice and summary. The basic concept of the technical solution adopted by the present invention to solve the above technical problems is:

[0006] The construction method for the air shaft partition wall of the fan room in coastal building civil air defense projects includes the following steps:

[0007] Step 1: Pour a 400-mm-high C30 concrete water stop sill at the air shaft partition wall part between the fan room and the air outlet chamber in advance;

[0008] Step 2: After the strength of the 400-mm-high C30 concrete water stop sill reaches the standard, build the air shaft partition wall to the position at the bottom of the air duct;

[0009] Step 3: Install the connecting pipe in the fan room, place one end of the air duct on the air shaft partition wall, and connect the other end with the connecting pipe by using a canvas expansion pipe;

[0010] Step 4: Continue to build the air shaft partition wall until completion;

[0011] Step 5: On the air outlet chamber side at the air duct outlet, install a steel anti-rat net on the air shaft partition wall by using expansion bolts;

[0012] Step 6: Install a valve on the side of the air blower room in the Φ100 PVC drain pipe reserved in the 400-mm-high C30 concrete water stop sill, and lead it to the drainage ditch of the coastal building civil air defense project. Install a drain grate on the side of the air outlet chamber.

[0013] Step 7: Install a wire mesh louver on the outer wall of the air shaft outside the air outlet chamber.

[0014] The present invention aims at the problems that after the partition wall of the air shaft of the air blower room in the existing conventional coastal building civil air defense project is completed, it is easy for mice and nocturnal flying birds to drill into the air duct and affect the operation of the air blower. In bad weather, rainwater backflows into the air outlet chamber, causing leakage in the air blower room and long-term dampness, which affects the service life of the connecting pipes. Therefore, the construction technology of the partition wall of the air shaft of the air blower room in the coastal building civil air defense project is adopted. An anti-mouse net is added on the outer side of the partition wall at the air duct outlet, and a louver with a wire mesh is set on the outer wall of the air outlet chamber to prevent mice and nocturnal flying birds. A drain pipe is installed at the bottom of the partition wall between the air blower room and the air shaft to eliminate the phenomenon of long-term water accumulation in the air outlet chamber in bad weather, ensuring the long-term safe and effective operation of the air blower in the coastal building civil air defense project. In the present invention, there is a movable space when setting the air outlet chamber.

[0015] In a further technical solution, an exhaust fan is installed in the air duct, a fixing plate is installed in the connecting pipe, a motor is installed on the fixing plate, and the output end of the motor is adapted to drive the exhaust fan;

[0016] The canvas expansion pipe is adapted to be detachably connected between the connecting pipe and the air duct.

[0017] In a further technical solution, a hanger is installed outside the connecting pipe, and the top of the hanger is fixed to the top of the air blower room; [[ID=I7]]

[0018] A channel steel frame is installed at the bottom of the hanger. The bottom of the hanger passes through the channel steel frame and is locked with a locking nut at the bottom.

[0019] In a further technical solution, a bottom body is installed at the bottom of the air duct. A volume chamber is arranged in the bottom body, and the volume chamber is communicated with the air duct;

[0020] A filter screen is installed at the connection between the volume chamber and the air duct. A lower pipe is installed at the bottom of the bottom body. An interface I is arranged at the bottom of the lower pipe. An interface II is installed at the top of the Φ100 PVC drain pipe. The interface I and the interface II are adapted to be connected.

[0021] In a further technical solution, the interface II is located on the side of the valve on the Φ100 PVC drain pipe away from the drain grate.

[0022] In a further technical solution, in step two, build the partition wall of the air shaft up to the bottom of the air duct, install a frame plate on the partition wall of the air shaft, position and install the air duct inside the frame plate, and then continue building up to the top of the fan room.

[0023] In a further technical solution, the frame plate includes side line plates. There are four groups of side line plates and they are installed in a rectangle. A right-angled clamping block sleeve is installed at the connection of two adjacent groups of side line plates. Adjacent side line plates are suitable for being installed in the clamping block sleeve and locked.

[0024] A telescopic rod is detachably installed on the side line plate, and a positioning piece is installed at the end of the telescopic rod far from the side line plate.

[0025] In a further technical solution, there are four groups of positioning pieces, which are suitable for positioning and fitting on the four sides of the air duct.

[0026] Beneficial effects:

[0027] By adding a mouse-proof net outside the partition wall at the outlet of the air duct, installing a drain pipe at the bottom of the partition wall between the fan room and the air outlet chamber, and setting a louver with a wire mesh on the outer wall of the air outlet chamber and other measures, the present invention ensures that no mice and nocturnal flying birds break into the air duct, there is no long-term water accumulation in the air outlet chamber, and achieves the goal of the long-term safe and effective operation of the fan in the coastal building civil air defense project.

[0028] With the double protection of adding a mouse-proof net at the outlet of the air duct and setting a louver with a wire mesh on the outer wall of the air outlet chamber, the possibility of any small animals entering the fan is eliminated. By installing a drain pipe at the bottom of the partition wall, the accumulated water is purposefully guided, ensuring the dryness of the fan room in the coastal building civil air defense project, ensuring the long-term safe and effective operation of the connecting pipe of the air duct, and achieving the goal of reducing the frequent replacement and maintenance of the connecting pipe during the later operation process, with remarkable economic effects. Description of the drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is the installation cross-sectional view of the fan room in Embodiment 1 of the present invention;

[0031] Figure 2 It is the partial cross-sectional view of the connecting pipe and the air duct of the present invention;

[0032] Figure 3 It is the partial cross-sectional view of the connecting pipe, the air duct, and the bottom body in Embodiment 2 of the present invention;

[0033] Figure 4 Schematic diagram of Embodiment 3 of the present invention;

[0034] Figure 5 Side view of the air shaft partition wall of Embodiment 3 of the present invention.

[0035] In the figure: 1, fan room; 2, air shaft partition wall; 3, 400-mm-high C30 concrete water stop sill; 4, air duct; 5, air shaft outer wall; 6, wire mesh louver; 7, coastal building civil air defense project drainage ditch; 8, Φ100 PVC drain pipe; 9, drain grate; 10, valve; 11, steel anti-rat net; 12, expansion bolt; 13, connecting pipe; 14, canvas expansion pipe; 15, air outlet chamber;

[0036] 16, exhaust fan; 17, motor; 18, fixing plate; 19, hanger; 20, channel steel frame; 21, bottom body; 22, lower pipe; 23, interface 2; 24, edge plate; 25, clamp sleeve; 26, telescopic rod; 27, positioning piece. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Embodiment 1

[0040] As Figures 1 to 2 shown, it is an implementation scheme of the present invention, a construction method for the air shaft partition wall of a coastal building civil air defense project fan room, including the following steps:

[0041] Step 1: Pour a 400-mm-high C30 concrete water stop sill 3 in advance at the position of the air shaft partition wall 2 between the fan room 1 and the air outlet chamber 15;

[0042] Step 2: After the strength of the 400-mm-high C30 concrete water stop sill 3 reaches the standard, build the air shaft partition wall 2 to the bottom position of the air duct 4;

[0043] Step 3: Install the connecting pipe 13 in the fan room 1, place one end of the air duct 4 on the air shaft partition wall 2, and connect the other end to the connecting pipe 13 using the canvas expansion pipe 14;

[0044] Step 4: Continue to build the air shaft partition wall 2 until completion;

[0045] Step 5: On the side of the air outlet chamber 15 at the outlet of the air duct 4, install a steel anti-rat net 11 on the air shaft partition wall 2 using expansion bolts 12;

[0046] Step 6: Install a valve 10 on one side of the Φ100 PVC drain pipe 8 reserved in the C30 concrete water stop sill 3 with a height of 400 mm on the side of the fan room 1, and guide it into the drainage ditch 7 of the coastal building civil air defense project. Install a drain grate 9 on one side of the air outlet chamber 15;

[0047] Step 7: Install a wire mesh louver 6 on the outer wall 5 of the air shaft of the air outlet chamber 15.

[0048] In a further technical solution, an exhaust fan 16 is installed in the air duct 4, a fixing plate 18 is installed in the connecting pipe 13, a motor 17 is installed on the fixing plate 18, and the output end of the motor 17 is suitable for driving the exhaust fan 16; the canvas expansion pipe 14 is suitable for being detachably connected between the connecting pipe 13 and the air duct 4. A hanger 19 is installed outside the connecting pipe 13, and the top of the hanger 19 is fixed to the top of the fan room 1; a channel steel frame 20 is installed at the bottom of the hanger 19, and the bottom of the hanger 19 passes through the channel steel frame 20 and a locking nut is installed at the bottom for locking.

[0049] Embodiment 2

[0050] As Figure 3 shown, this is another implementation scheme of the present invention. On the basis of Embodiment 1, further, in order to discharge possible splashes in time, it is necessary to discharge them into the drainage ditch 7 of the coastal building civil air defense project in time. A bottom body 21 is installed at the bottom of the air duct 4, a volume chamber is arranged in the bottom body 21, and the volume chamber is communicated with the air duct 4;

[0051] A filter screen is installed at the connection between the volume chamber and the air duct 4. The bottom of the filter screen is a guide groove opening, which is suitable for draining water downward, and has a distance from the exhaust fan as much as possible. A lower pipe 22 is installed at the bottom of the bottom body 21, an interface one is arranged at the bottom of the lower pipe 22, an interface two 23 is installed at the top of the Φ100 PVC drain pipe 8, and the interface one and the interface two 23 are suitable for being connected. The interface two 23 is located on the side of the valve 10 on the Φ100 PVC drain pipe 8 away from the drain grate 9.

[0052] Embodiment 3

[0053] As Figure 4 and Figure 5 shown, this is another implementation scheme of the present invention. On the basis of Embodiment 1, in a further technical solution, in Step 2, the air shaft partition wall 2 is built up to the bottom of the air duct 4, a frame plate is installed on the air shaft partition wall 2, the air duct 4 is positioned and installed in the frame plate, and then it is continued to be built up to the top of the fan room 1.

[0054] As Figure 5As shown, the frame plate includes side line plates 24. There are four groups of side line plates 24 which are installed in a rectangular shape. At the connection of adjacent two groups of side line plates 24, right-angled clamping block sleeves 25 are installed. Adjacent side line plates 24 are adapted to be installed in the clamping block sleeves 25 and locked; a telescopic rod 26 is detachably installed on the side line plates 24, and a positioning piece 27 is installed at one end of the telescopic rod 26 away from the side line plates 24. There are four groups of the positioning pieces 27 which are adapted to be positioned and fitted on the four sides of the air duct 4.

[0055] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

[0056] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The construction method of the wind shaft partition wall of the wind machine room of the civil air defense project of coastal buildings is characterized by: The following steps are involved: Step 1: Pour a 400mm high C30 concrete water stop (3) in advance at the air shaft partition wall (2) between the fan room (1) and the air outlet chamber (15); Step 2: After the 400mm high C30 concrete waterstop (3) reaches the strength standard, build the air shaft partition wall (2) to the bottom of the air duct (4); Step 3: Install the connecting pipe (13) in the fan room (1), place one end of the air duct (4) on the air shaft partition wall (2), and connect the other end to the connecting pipe (13) using a canvas telescopic pipe (14); Step 4: Continue to build the air shaft partition wall (2) until it is completed; Step 5: Install a steel rodent-proof net (11) on the air shaft partition wall (2) at the outlet of the air duct (4) on one side of the air chamber (15) using expansion bolts (12); A bottom body (21) is installed at the bottom of the air duct (4), a volume cavity is provided in the bottom body (21), and the volume cavity is communicated with the air duct (4); A filter is installed at the connection between the volume chamber and the air duct (4), a lower pipe (22) is installed at the bottom of the bottom body (21), a first interface is provided at the bottom of the lower pipe (22), and a second interface (23) is installed at the top of the Φ100PVC drainage pipe (8), and the first interface and the second interface (23) are suitable for connecting; The second interface (23) is located on the side of the valve (10) on the Φ100PVC drainage pipe (8) away from the drainage grate (9); Step 6: Install a valve (10) on one side of the fan room (1) of the Φ100PVC drainage pipe (8) reserved in the 400mm high C30 concrete water stop (3), and guide it to the drainage ditch (7) of the coastal building civil air defense project, and install a drainage grate (9) on one side of the air outlet chamber (15); Step 7: Install a wire mesh louver (6) on the outer wall (5) of the air shaft outside the air outlet chamber (15).

2. The method for constructing a wind shaft partition wall in a wind machine room of a coastal building civil air defense project according to claim 1 is characterized in that: An exhaust fan (16) is installed in the air duct (4), a fixing plate (18) is installed in the connecting pipe (13), a motor (17) is installed on the fixing plate (18), and an output end of the motor (17) is suitable for driving the exhaust fan (16); The canvas telescopic tube (14) is suitable for being detachably connected between the connecting pipe (13) and the air duct (4).

3. The method for constructing a wind shaft partition wall in a wind machine room of a coastal building civil air defense project according to claim 1 is characterized in that: A hanger (19) is installed outside the connecting pipe (13), and the top of the hanger (19) is fixed to the top of the fan room (1); A channel steel frame (20) is installed at the bottom of the hanger (19), and the bottom of the hanger (19) passes through the channel steel frame (20) and is locked with a locking nut installed at the bottom.

4. The method for constructing a wind shaft partition wall in a wind machine room of a coastal building civil air defense project according to claim 1 is characterized in that: In step 2, the wind shaft partition wall (2) is built to the bottom of the wind duct (4), a frame plate is installed on the wind shaft partition wall (2), the wind duct (4) is positioned and installed in the frame plate, and then the building is continued to the top of the fan room (1).

5. The method for constructing a wind shaft partition wall in a wind machine room of a coastal building civil air defense project according to claim 4 is characterized in that: The frame plate includes edge plates (24), which are provided in four groups and are installed in a rectangular shape. A right-angled clamping block sleeve (25) is installed at the connection between two adjacent groups of edge plates (24), and the adjacent edge plates (24) are suitable for being installed in the clamping block sleeve (25) and locked; A telescopic rod (26) is detachably mounted on the edge plate (24), and a positioning piece (27) is mounted on one end of the telescopic rod (26) away from the edge plate (24).

6. The method for constructing a wind shaft partition wall in a wind machine room of a coastal building civil air defense project according to claim 5 is characterized in that: The positioning pieces (27) are provided with four groups suitable for positioning and fitting on the four sides of the air duct (4).

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