Highly-integrated rapid-replacement type filtering and ventilating device and using method

Abstract

The invention discloses a highly-integrated rapid-replacement type filtering and ventilating device which comprises a shell, a dust filter installed on the top of the shell through an air inlet flange, a fan installed on an air outlet in one side of the shell, a fine filtering unit and a poison filtering unit, the fine filtering unit and the poison filtering unit are installed in the shell, and the poison filtering unit is installed on the outer side of the fine filtering unit in a sleeving mode. The inner side of the fine filtration unit is communicated with the air inlet channel in the shell. The dust filtering, filtering and air volume measuring functions are integrated, the fine filtering unit and the poison filtering unit can be independently replaced, other functional parts can be repeatedly used, the use cost can be effectively reduced, and the economical efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation devices, and in particular to a highly integrated quick-change filtering ventilation device and a use method thereof. Background Art

[0002] At present, the dust filter, air inlet shut-off valve, filter absorber, air volume measurement component, and fan in the filter ventilation device in use are basically discrete distribution structures. The components need to be connected as a whole with multiple sections of ventilation ducts. There are shortcomings such as large system air flow resistance, many installation joints, and large space occupation. At the same time, the fine filter unit and the gas filter unit cannot be replaced separately. After use in a contaminated environment, the filter absorber needs to be replaced as a whole, resulting in low product utilization and high use costs. How to achieve the miniaturization and integration of the structure of the filter ventilation device, as well as the rapid replacement of the fine filter unit and the gas filter unit has always been a technical bottleneck for the entire industry and needs to be solved urgently. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the overall structure of the device occupies a large area, the product utilization rate is low and the cost is high.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a highly integrated quick-change filtering and ventilation device, including a shell, a dust filter installed on the top of the shell through an air inlet flange, a fan installed on the air outlet on one side of the shell, and a fine filter unit and a poison filter unit installed in the shell, the poison filter unit is mounted on the outside of the fine filter unit, and the inside of the fine filter unit is connected to the air inlet channel in the shell.

[0005] Preferably, the bottom of the shell and the fan are both mounted on the base by bolts, and the top of the fan is connected to the top of the shell by an L-shaped fan connector.

[0006] Preferably, the air outlet is connected to the air inlet of the fan via a rubber hose, and the rubber hose is fixed by a clamp.

[0007] Preferably, the fine filtration unit comprises a cylindrical metal frame and a paper core sleeved on the outside of the metal frame, the outside of the metal frame is provided with crisscross reinforcing ribs, and the paper core is fastened to the metal frame by bolts.

[0008] Preferably, a cylindrical mounting structure is fixedly installed on the inner top of the shell, an air inlet shut-off valve is installed on the inner top of the mounting structure, an air volume measurement component is installed on the inner bottom of the mounting structure, and the mounting structure is located at the inner top of the fine filter unit.

[0009] Preferably, the poison filtering unit is a cylindrical cavity structure, the inner layer of the cylindrical cavity structure is filled with adsorption material, and air inlet holes are arranged on the inner and outer sides of the cylindrical cavity structure.

[0010] Preferably, a lower sealing gasket and an upper sealing gasket are installed on the inner bottom and inner top of the shell respectively, and the top and bottom of the fine filter unit and the poison filter unit are respectively abutted against the upper sealing gasket and the lower sealing gasket.

[0011] The filter unit includes a cylindrical mounting shell, the bottom end of the mounting shell is connected to an annular mounting seat, the top end of the mounting shell is coaxially connected to a rotating ring, the outer wall of the mounting shell is provided with a driving member for driving the rotating ring to rotate, the inner cavity of the mounting shell is provided with multiple layers of annular partitions with notches from the inside to the outside, and an annular slide groove is provided between the mounting seats between two adjacent partitions, and a head end bar and a tail end bar respectively connected to the two ends of the filter membrane are slidably arranged in the slide groove, the head end bar is fixedly connected to the rotating ring, and the tail end bar is connected to an external winding device through a pull rope, and a maintenance door is provided at the mounting shell corresponding to the notch of the partition.

[0012] The opposite side walls of the head end strip and the tail end strip are both provided with a strip clamping structure for clamping the filter membrane. The tail end strip is located on one side of the partition notch. A limiting plate connected to the partition is fixedly provided radially in the mounting shell.

[0013] A method for using a highly integrated quick-change filter ventilation device, wherein the filter membrane installation comprises the following steps: Step 1: Control the driving member to drive the rotating ring to rotate, so that the rotating ring drives the head end bar to rotate to one side of the partition notch, and the tail end bar is located on the other side of the partition notch; Step 2: clamp one end of the filter membrane on the head end bar, control the driving member to drive the rotating ring to rotate, and drive the head end bar to move in a direction away from the tail end bar, and unwind the filter membrane simultaneously until the head end bar moves to contact the limit plate and stops; Step 3: Pull out the tail bar, cut off the filter membrane, and then hold the tail end of the filter membrane on the tail bar. Then, pull the tail bar in through the pull rope and make the tail bar contact the limit plate. Finally, lock the pull rope to complete the installation of the filter membrane. Step 4: When replacing the filter membrane, first pull out the tail end bar through the filter membrane, remove the filter membrane clamped on the tail end bar, and then remove the filter membrane connected to the head end bar through the drive member and the rotating ring.

[0014] 1. The present invention provides a highly integrated quick-change filtering and ventilation device, which is used in mobile platforms, vehicle-mounted shelters, laboratories and other gas filtering and ventilation systems. The system air supply pipe is reliably connected to the air inlet of the dust filter. When in use, the air inlet closing valve and the fan are opened, and the external contaminated air passes through the dust filter, the fine filter unit and the gas filter unit in sequence. The dust filter filters out large particles of dust in the contaminated air, and the fine filter unit and the gas filter unit filter out small particles of dust, radioactive fallout, chemical agents and biological warfare agent aerosols in the contaminated air. The clean air obtained after filtration is sent into the protective space through the fan to meet the survival and work needs of the internal personnel.

[0015] 2. The device adopts modular design. Each component is bolted as an independent unit, reducing the connection methods of welding and glue filling. It is simple to assemble and easy to disassemble. After the device is used in a contaminated environment, the fine filter unit and the gas filter unit can be quickly replaced by removing the air inlet flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the structure of the fine filtration unit in an embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the poison filtering unit in an embodiment of the present invention.

[0019] Figure 4 It is a schematic cross-sectional view of the gas filtering unit in an embodiment of the present invention.

[0020] Figure 5 for Figure 4 Magnified view of area A.

[0021] In the figure: 1. dust filter; 2. air inlet shut-off valve; 3. upper sealing gasket; 4. air volume measurement component; 5. fine filter unit; 6. poison filter unit; 7. shell; 8. lower sealing gasket; 9. base; 10. air inlet flange; 11. fan connector; 12. air outlet; 13. fan; 14. driving part; 15. rotating ring; 16. mounting shell; 17. mounting seat; 18. maintenance door; 19. slide; 20. partition; 21. head end bar; 22. tail end bar; 23. pull rope; 24. limit plate. DETAILED DESCRIPTION

[0022] like Figure 1-5As shown, the present invention provides a highly integrated quick-change filtering and ventilation device, including a shell 7, a dust filter 1 installed on the top of the shell 7 through an air inlet flange 10, a fan 13 installed on an air outlet 12 on one side of the shell 7, and a fine filter unit 5 and a poison filter unit 6 installed in the shell 7, wherein the poison filter unit 6 is mounted on the outside of the fine filter unit 5, and the inside of the fine filter unit 5 is connected to the air inlet channel in the shell 7.

[0023] The housing 7 and the air outlet 12 are formed by machining and sheet metal processing and then welded into a whole.

[0024] The base 9 and the air inlet flange 10 are formed by machining and sheet metal processing of metal materials.

[0025] The fan connecting member 11 is made of metal material through machining, sheet metal processing and welding.

[0026] The air volume measurement component 4 is installed on the air outlet end of the air inlet shut-off valve 2 by bolt connection to form an assembly, and the assembly is installed on the air inlet flange 10 by bolt connection.

[0027] The dust filter 1 is mounted on the air inlet flange 10 by means of bolts.

[0028] The base 9 is mounted on the bottom of the housing by bolt connection.

[0029] It can filter out small dust particles, radioactive fallout, chemical agents and biological adhesive aerosols in contaminated air.

[0030] like Figure 2 As shown. The fine filtration unit 5 includes a cylindrical metal frame and a paper core sleeved on the outside of the metal frame. The outside of the metal frame is arranged with criss-cross reinforcing ribs, and the paper core is mounted on the metal frame by bolts. The filter unit 6 is composed of an adsorbent material and a cylindrical cavity structure. The cylindrical cavity structure is formed by machining, sheet metal, and welding of metal materials, and then the adsorbent material is filled in the cylindrical cavity structure to ensure the filling density. The fine filtration unit 5 is composed of a paper core and a metal frame structure. The metal frame is formed by machining and sheet metal processing of metal materials, and then welded into a whole. The paper core is formed by a high-efficiency filter material using a paper folding machine. The processed paper core is rolled into a ring and sleeved outside the metal frame, and the two ends are sealed with glue. The device structure is miniaturized and the space required for the installation of the device is small.

[0031] A cylindrical mounting structure is fixedly installed on the inner top of the shell 7, an air inlet shut-off valve 2 is installed on the inner top of the mounting structure, an air volume measurement component 4 is installed on the inner bottom of the mounting structure, and the mounting structure is located at the inner top of the fine filter unit 5.

[0032] As a preferred embodiment of the present invention, the poison filtering unit 6 is a cylindrical cavity structure, the inner layer of the cylindrical cavity structure is filled with adsorption material, and the inner and outer sides of the cylindrical cavity structure are both provided with air inlet holes.

[0033] like Figure 1 As shown. The bottom and top of the housing 7 are respectively installed with a lower sealing gasket 8 and an upper sealing gasket 3, and the top and bottom of the fine filter unit 5 and the poison filter unit 6 are respectively abutted against the upper sealing gasket 3 and the lower sealing gasket 8. The bottoms of the housing 7 and the fan 13 are both installed on the base 9 by bolts, and the top of the fan 13 is connected to the top of the housing 7 by an L-shaped fan connector 11, which can be quickly replaced.

[0034] The fine filter unit 5 and the poison filter unit 6 are installed in the shell 7. First, stick the lower sealing gasket 8 to the bottom of the shell, then put the poison filter unit 6 into the shell and position it, then pass the fine filter unit 5 through the hollow part in the middle of the poison filter unit 6 and put it into the shell, stick the upper sealing gasket to the upper end faces of the fine filter unit 5 and the poison filter unit 6, and then use the air inlet flange 10 to axially press the upper end faces of the fine filter unit 5 and the poison filter unit 6, and connect the shell 7 and the air inlet flange 10 together with bolts, so that the fine filter unit 5 and the poison filter unit 6 are pressed and fixed, and the sealing is ensured at the same time.

[0035] The air outlet 12 is connected to the air inlet of the fan 13 by a rubber hose, and the rubber hose is fixed by a clamp. The fan 13 is first connected to the fan connector 11 by bolts to form an assembly, and then the assembly is fixed to the housing 7 and the base 9 by bolts. The air outlet 12 is connected to the air inlet of the fan 13 by a rubber hose and fixed by a clamp.

[0036] like Figure 1 , Figure 3 , Figure 4 and Figure 5 The described filtration unit 6 comprises a cylindrical mounting shell 16, the bottom end of the mounting shell 16 is connected to an annular mounting seat 17, the top end of the mounting shell 16 is coaxially connected to a rotating ring 15, the outer wall of the mounting shell 16 is provided with a driving member 14 for driving the rotating ring 15 to rotate, the inner cavity of the mounting shell 16 is provided with multiple layers of annular partitions 20 with notches from the inside to the outside, and an annular slide groove 19 is provided between the mounting seats 17 between two adjacent partitions 20, and a head end bar 21 and a tail end bar 22 respectively connected to the two ends of the filter membrane are slidably arranged in the slide groove 19, the head end bar 21 is fixedly connected to the rotating ring 15, and the tail end bar 22 is connected to the external winding device through a pull rope 23, and a maintenance door 18 is provided at the mounting shell 16 corresponding to the notch of the partition 20.

[0037] The maintenance door 18 is hinged and has a sealing strip on the edge; an annular groove is opened on the top of the mounting shell 16, and an annular protrusion is arranged on the bottom of the rotating ring 15. A sealing ring is fixed on the side wall of the annular protrusion, and the sealing ring is adapted to the annular groove on the mounting shell 16; a gear ring is connected to the outer side wall of the top of the rotating ring 15, and the gear ring is meshed with the gear on the driving member 14. The motor drive in the driving member 14 is connected to the reducer, and the gear is installed on the output shaft of the reducer, so as to realize the self-rotation of the rotating ring 15.

[0038] There are five layers of filter membranes in total. When the filter membranes are installed, the same installation form is adopted. The unwinding speed of each layer of filter membrane is inconsistent, corresponding to the linear speed of the head end strip 21 corresponding to each layer, to avoid the filter membrane being pulled by the rope when driving the head end strip 21 to rotate.

[0039] The notch of the partition 20 is used for replacing and installing the filter membrane. A protrusion is also arranged at the notch of the partition 20. The protrusion is used to limit the movement of the head end bar 21 and the tail end bar 22. The slide grooves 19 are all arc-shaped, and the corresponding cross-sectional surfaces of the head end bar 21 and the tail end bar 22 are all arc-shaped, which can ensure stability during rotation.

[0040] like Figure 4 and Figure 5 As shown. The opposite side walls of the head end bar 21 and the tail end bar 22 are both provided with a strip clamping structure for clamping the filter membrane. The tail end bar 22 is located on one side of the notch of the partition 20. A limit plate 24 connected to the partition 20 is fixedly provided radially in the mounting shell 16. The pull rope 23 includes a main rope, and each tail end bar 22 is correspondingly connected to a branch rope connected to the main rope, and is pulled uniformly by the winding wheel.

[0041] A method for using a highly integrated quick-change filter ventilation device, wherein the filter membrane installation comprises the following steps: Step 1: Control the driving member 14 to drive the rotating ring 15 to rotate, so that the rotating ring 15 drives the head end bar 21 to rotate to one side of the notch of the partition 20, and the tail end bar 22 is located at the other side of the notch of the partition 20; Step 2: clamp one end of the filter membrane on the head end strip 21, control the driving member 14 to drive the rotating ring 15 to rotate, and drive the head end strip 21 to move in a direction away from the tail end strip 22, and unwind the filter membrane simultaneously, until the head end strip 21 moves to contact the limit plate 24 and stops; Step 3: Pull out the tail end bar 22, cut off the filter membrane, and then hold the tail end of the filter membrane on the tail end bar 22. Then, pull the tail end bar 22 in through the pull rope 23, and make the tail end bar 22 contact the limit plate 24. Finally, lock the pull rope 23 to complete the installation of the filter membrane. Step 4: When replacing the filter membrane, first pull out the tail end bar 22 through the filter membrane, remove the filter membrane clamped on the tail end bar 22, and then remove the filter membrane connected to the head end bar 21 through the driving member 14 and the rotating ring 15.

Claims

1. A highly integrated quick-change filter-ventilator device, characterized in that: The invention comprises a housing (7), a dust filter (1) mounted on the top of the housing (7) via an air inlet flange (10), a fan (13) mounted on an air outlet (12) on one side of the housing (7), and a fine filter unit (5) and a gas filter unit (6) mounted in the housing (7), wherein the gas filter unit (6) is sleeved on the outside of the fine filter unit (5), and the inside of the fine filter unit (5) is connected to an air inlet channel in the housing (7).

2. A highly integrated quick-change filter-ventilator device as claimed in claim 1, characterized in that: The bottoms of the housing (7) and the fan (13) are both mounted on a base (9) by means of bolts, and the top of the fan (13) is connected to the top of the housing (7) by means of an L-shaped fan connector (11).

3. A highly integrated quick-change filter-ventilator device as claimed in claim 1, characterized in that: The air outlet (12) is connected to the air inlet of the fan (13) via a rubber hose, and the rubber hose is fixed by a clamp.

4. A highly integrated quick-change filter-ventilator device as claimed in claim 2, characterized in that: The fine filter unit (5) comprises a cylindrical metal frame and a paper core sleeved on the outside of the metal frame, the outside of the metal frame is provided with crisscross reinforcing ribs, and the paper core is fastened to the metal frame by bolts.

5. A highly integrated quick-change filter-ventilator device as claimed in claim 4, characterized in that: A cylindrical mounting structure is fixedly mounted on the inner top of the housing (7), an air inlet shut-off valve (2) is mounted on the inner top of the mounting structure, an air volume measurement assembly (4) is mounted on the inner bottom of the mounting structure, and the mounting structure is located on the inner top of the fine filter unit (5).

6. A highly integrated quick-change filter-ventilator device as claimed in claim 5, characterized in that: The gas filtering unit (6) is a cylindrical cavity structure, the inner layer of the cylindrical cavity structure is filled with adsorption material, and air inlet holes are arranged on the inner and outer sides of the cylindrical cavity structure.

7. A highly integrated quick-change filter-ventilator device as claimed in claim 6, characterized in that: A lower sealing gasket (8) and an upper sealing gasket (3) are respectively installed on the inner bottom and inner top of the shell (7), and the top and bottom of the fine filter unit (5) and the gas filter unit (6) are respectively abutted against the upper sealing gasket (3) and the lower sealing gasket (8).

8. A highly integrated quick-change filter-ventilator device as claimed in claim 6, characterized in that: The filtration unit (6) comprises a cylindrical mounting shell (16), the bottom end of the mounting shell (16) is connected to an annular mounting seat (17), the top end of the mounting shell (16) is coaxially rotatably connected to a rotating ring (15), the outer wall of the mounting shell (16) is provided with a driving member (14) for driving the rotating ring (15) to rotate, the inner cavity of the mounting shell (16) is provided with multiple layers of annular partitions (20) with notches from the inside to the outside, and an annular slide groove (19) is provided between the mounting seats (17) between two adjacent partitions (20), and a head end bar (21) and a tail end bar (22) respectively connected to the two ends of the filter membrane are slidably arranged in the slide groove (19), the head end bar (21) is fixedly connected to the rotating ring (15), and the tail end bar (22) is connected to an external winding device through a pull rope (23), and a maintenance door (18) is provided at the mounting shell (16) corresponding to the notch of the partition (20).

9. A highly integrated quick-change filter-ventilator device as claimed in claim 8, characterized in that: The opposite side walls of the head end strip (21) and the tail end strip (22) are both provided with a strip-shaped clamping structure for clamping the filter membrane; the tail end strip (22) is located on one side of the notch of the partition plate (20); and a limit plate (24) connected to the partition plate (20) is fixedly provided radially in the mounting shell (16).

10. A method for using a highly integrated quick-change filter-ventilator device as claimed in claim 9, characterized in that: The installation of the filter membrane includes the following steps: Step 1: Control the driving member (14) to drive the rotating ring (15) to rotate, so that the rotating ring (15) drives the head end bar (21) to rotate to one side of the notch of the partition (20), and the tail end bar (22) is located on the other side of the notch of the partition (20); Step 2: clamp one end of the filter membrane on the head end strip (21), control the driving member (14) to drive the rotating ring (15) to rotate, and drive the head end strip (21) to move in a direction away from the tail end strip (22), and simultaneously unwind the filter membrane until the head end strip (22) moves to contact the limit plate (24) and stops; Step 3: Pull out the tail end strip (22), cut off the filter membrane, and then hold the tail end of the filter membrane on the tail end strip (22). Then, pull the tail end strip (22) in through the pull rope (23) so that the tail end strip (22) contacts the limit plate (24). Finally, tighten the pull rope (23), and the installation of the filter membrane is completed. Step 4: When replacing the filter membrane, first pull out the tail end bar (22) through the filter membrane, remove the filter membrane clamped on the tail end bar (21), and then remove the filter membrane connected to the head end bar (21) through the driving member (14) and the rotating ring (15).

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