Assembly type aluminum pipe type anti-explosion valve

Abstract

The invention provides an assembly type aluminum pipe type anti-explosion valve which comprises a door frame, a plugging type door leaf, a vertical rotating type door leaf and a valve unit body, the door frame is pre-buried in a door frame wall, and the plugging type door leaf and the vertical rotating type door leaf are both installed on the door frame; the blocking type door leaf is fixedly connected with the door frame, and the vertical rotating type door leaf is hinged to the door frame. The blocking type door leaf is provided with a first ventilation opening, the vertical rotating type door leaf is provided with a second ventilation opening, and valve unit bodies are installed in the first ventilation opening and the second ventilation opening. The valve is compact in structure and reliable in strength, the ventilation resistance of the valve ventilation duct is improved, the stroke of the valve element moving from the opening position to the closing position is short, and the wave absorbing efficiency is improved. The valve adopts a plugging type door leaf and a vertical rotating type door leaf, and the plugging type door leaf reduces civil construction and equipment installation difficulty; and the vertical rotating door leaf is convenient for constructors to enter the ventilation opening to carry out overhaul and maintenance work.

Description

Technical Field

[0001] The invention relates to the technical field of explosion-proof wave valves, and in particular to an assembled aluminum tube type explosion-proof wave valve. Background Art

[0002] Explosion-proof valves are a type of protective equipment used in ventilation openings of protective projects, which can effectively defend against and reduce shock waves. The valves are usually open to facilitate air exchange inside and outside the project; when hit, the valves can be quickly closed under the action of shock waves, blocking the path of shock waves propagating into the project, ensuring the safety of personnel and equipment inside the project. At present, the more mature and widely used valves mainly include pendulum-type explosion-proof valves, hose-type valves, etc. The above devices have the following problems:

[0003] 1. Not resistant to high temperatures. For example, the hose-type valve is made of rubber material and cannot be used in ventilation openings with higher temperatures such as smoke exhaust ports.

[0004] 2. Low wave absorption rate. For example, the closing stroke of the swing-type valve is long, and the steel swing plate is heavy, which leads to a long closing time of the valve. During the closing process, part of the shock wave enters the project through the gap between the swing plate and the valve base, reducing the wave absorption performance of the valve.

[0005] 3. The resistance is not high. For example, the material strength of the hose-type valve is low and it is not suitable for high-level protection projects.

[0006] 4. A hidden door room must be set up in front of the valve. The ventilation holes of the swing-type valve and the hose-type valve are on the side of the shock wave propagation direction. The valve can only be closed when the shock wave acts on the valve in the positive direction. The lateral shock wave cannot close the valve. Therefore, when installing the valve, the valve base must be hidden a certain distance inside the door frame wall to ensure that the valve is closed normally.

[0007] 5. A large-sized diffusion chamber must be set behind the valve. In view of the low wave attenuation rate of the above-mentioned valve, in order to ensure that the shock wave pressure passing through the valve is below the safety threshold, a larger civil engineering space must be set at the rear end of the valve to reduce the residual pressure of the shock wave. This practice increases the construction cost of the project.

[0008] 6. It is inconvenient to install, use and maintain. Both the swing-type valve and the hose-type valve adopt an integral door leaf structure, and the air volume of the valve is fixed. When faced with different air volume requirements of the project, only multiple sets of whole valves can be installed, which increases the manufacturing cost and increases the difficulty of use and maintenance, and has poor adaptability to the project. Summary of the invention

[0009] The object of the present invention is to provide an assembled aluminum tube type explosion-proof wave valve, which adopts an assembled structure, has a high wave absorption rate, reliable strength, is easy to install, has good applicability to engineering projects, and has good promotion and application value.

[0010] In order to achieve the above object, the present invention provides the following technical solutions:

[0011] An assembled aluminum tube type explosion-proof wave valve comprises a door frame, a blocking door leaf, a vertical rotating door leaf and a valve unit, wherein the door frame is pre-buried in the door frame wall, and the blocking door leaf and the vertical rotating door leaf are both installed on the door frame; the blocking door leaf is fixedly connected to the door frame, and the vertical rotating door leaf is hinged to the door frame; the blocking door leaf is provided with a first vent, and the vertical rotating door leaf is provided with a second vent, and the valve unit is installed in the first vent and the second vent.

[0012] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the door frame includes an upper frame, a lower frame and two side frames, the upper frame, the lower frame and the two side frames are all angle steels, the upper frame, one side frame, the lower frame, the other side frame and the upper frame are connected in sequence, and the periphery of the door frame is provided with anchor hooks; a first cross beam is provided in the middle of the door frame, and the two ends of the first cross beam are respectively pre-embedded in the door frame wall, the door frame located above the first cross beam is used to install the blocking door leaf, and the door frame located below the first cross beam is used to install the blocking door leaf. for installing the vertical rotating door leaf; a plurality of second cross beams are arranged between the first cross beam and the upper frame, the two ends of the second cross beams are respectively connected to the two side frame frames, a plurality of longitudinal beams are arranged between the first cross beam and the upper frame, the upper ends of the longitudinal beams are connected to the upper frame, and the lower ends of the longitudinal beams are connected to the first cross beam; a plurality of supporting beams are arranged between the first cross beam and the lower frame, the upper ends of the supporting beams are connected to the first cross beam, and the lower ends of the supporting beams are connected to the lower frame; the first cross beam, the second cross beam, the longitudinal beams and the supporting beams are all steel sections.

[0013] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the blocking door leaf includes a first steel frame and a first panel, and the inner surface and the outer surface of the first steel frame are covered with the first panel; the door frame is provided with bolt holes, and after the bolts pass through the blocking door leaf, the door frame and the blocking door leaf are connected through the bolt holes; the blocking door leaf is provided with a plurality of first vents, and a plurality of the first vents are evenly distributed in an array on the blocking door leaf, and two first vertical support members and a plurality of first transverse support members are arranged in the first vent, and the plurality of first transverse support members are evenly distributed from the upper end to the lower end of the first vertical support member, and the two ends of the first transverse support member are respectively connected to the two first vertical support members, and the first vertical support member is connected to the first panel; a hook is provided on the top of the door frame wall, and a first hanging ring is provided on the top of the blocking door leaf and the two side surfaces close to the door frame wall.

[0014] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the vertical rotating door leaf includes a second steel frame and a second panel, and the inner surface and outer surface of the second steel frame are covered with the second panel; a plurality of second vents are arranged on the vertical rotating door leaf, and two second vertical supports and a plurality of second transverse supports are arranged in the second vents, and the plurality of second transverse supports are evenly distributed from the upper end to the lower end of the second vertical support, and the two ends of the second transverse support are respectively connected to the two second vertical supports, and the second vertical supports are connected to the second panel; a plurality of second hanging rings are arranged on the top of the vertical rotating door leaf; and handles are arranged on the inner surface and the outer surface of the vertical rotating door leaf.

[0015] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the door frame is vertically provided with a door shaft, a hinge is installed on the door shaft, and one side wall of the vertical rotating door leaf is hinged to the door shaft through the hinge; the other side wall of the vertical rotating door leaf is provided with a jack, and when the vertical rotating door leaf is opened, the jack is used to bear the dead weight of the vertical rotating door leaf; the vertical rotating door leaf is provided with a lock, and the door frame is provided with a lock hole, and after the vertical rotating door leaf is closed, the lock can fix the vertical rotating door leaf to the door frame, and the lock is a sliding bolt type lock.

[0016] Further, in the above-mentioned assembled aluminum tube type explosion-proof valve, the valve unit body includes a front valve body, a rear valve body, a valve core, a return spring and a guide column, the front valve body and the rear valve body are arranged opposite to each other, the inner surface of the front valve body and the inner surface of the rear valve body are fitted together, the front valve body includes a first frame structure and a plurality of front valve seats, the axis of the front valve seat is parallel to the axis of the length direction of the first frame structure, the two ends of the front valve seat are respectively connected to the two side walls of the first frame structure, and the plurality of front valve seats are evenly distributed from top to bottom in the first frame structure, and a first ventilation channel is formed between the front valve seat and the first frame structure and between two adjacent front valve seats, the rear valve body includes a second frame structure and a plurality of rear valve seats, the axis of the rear valve seat is parallel to the axis of the front valve seat, the two ends of the rear valve seat are respectively connected to the second frame structure, and the plurality of rear valve seats are evenly distributed from top to bottom in the second frame structure, and the rear valve seat and the second frame structure are spaced apart from each other. , a second air exchange channel is formed between two adjacent rear valve seats, after the front valve body and the rear valve body are assembled, a plurality of the front valve seats correspond to a plurality of the rear valve seats one by one, and there is a distance between a relative front valve seat and a rear valve seat, a plurality of valve cores are provided, the axis of the valve core is parallel to the axis of the front valve seat, the outer surface of the valve core can fit with the two adjacent front valve seats to block the first air exchange channel, the outer surface of the valve core can fit with the two adjacent rear valve seats to block the second air exchange channel, both ends of each valve core are provided with guide columns, the two ends of the guide columns are respectively connected to the first frame structure and the second frame structure, the axial direction of the guide columns is perpendicular to the axial direction of the valve core, both ends of the valve core are provided with through holes, the guide columns pass through the through holes, and the guide columns can provide guidance for the movement of the valve core; the reset spring is sleeved between the end of the guide column and the valve core.

[0017] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the valve unit body also includes a hexagon socket head screw and a spring washer, and the hexagon socket head screw and the spring washer tightly connect the front valve body and the rear valve body into one; the guide column includes a hexagon socket head shoulder screw and a hexagonal cap nut, one end of the hexagon socket head shoulder screw extends out of the valve core, and the hexagonal cap nut is arranged at one end of the hexagon socket head shoulder screw.

[0018] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the front valve seat is a channel steel, the waist of the front valve seat is connected to the first frame structure, the legs of the front valve seat extend toward the direction of the rear valve seat, the rear valve seat is a channel steel, the waist of the rear valve seat is connected to the second frame structure, the legs of the rear valve seat extend toward the direction of the front valve seat, and the axial direction of the valve core is perpendicular to the extension direction of the legs.

[0019] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the material of the valve core is 6061 aluminum alloy, and the valve core is a tube.

[0020] Furthermore, in the above-mentioned assembled aluminum tube type explosion-proof wave valve, the valve unit body is connected to the blocking door leaf or the vertical rotating door leaf by bolts; multiple valve unit bodies are distributed over the first vents, and multiple valve unit bodies are distributed over the second vents; the valve unit body is provided with four front valve seats, four rear valve seats and five valve cores; the blocking door leaf is provided with three rows of the first vents from top to bottom, and each row is provided with three first vents; the vertical rotating door leaf is provided with two rows of the second vents from top to bottom, and each row is provided with three second vents; each first vent is installed with four valve units from top to bottom, and each second vent is installed with two valve units from top to bottom.

[0021] It can be seen from the analysis that the present invention discloses an assembled aluminum tube type explosion-proof wave valve, which has a compact structure, reliable strength, reduces impact loads, and improves the ventilation resistance of the valve ventilation duct. The valve core is made of high-temperature resistant lightweight materials, and the valve core has a short stroke from the open position to the closed position. The above design improves the closing speed of the valve core under the action of the explosion shock wave load and improves the wave elimination efficiency. A set of guide columns and reset springs are arranged at both ends of each set of valve cores. The guide columns can ensure that the valve moves linearly along the direction of the shock wave to avoid the valve core from deflecting and getting stuck; the reset spring can ensure that the valve core returns to its original position after unloading, so that the valve can resume the ventilation state. By adjusting the stiffness of the reset spring, the valve can adapt to different installation angles and meet different use conditions. According to the different air volume requirements of the project, the corresponding number of valve units can be freely selected to be installed in the first vent on the blocking door leaf and the second vent on the vertical rotating door leaf, and can adapt to the installation requirements of different orifice sizes. The valve unit is easy to disassemble and replace, which can reduce the difficulty of equipment maintenance. The valve adopts two forms: fixed (blocking door leaf) and movable (vertical door leaf). The blocking door leaf is fixed to the door frame by bolts, which has good integrity and reduces the difficulty of civil construction and equipment installation; the vertical door leaf can be opened and closed manually, which is convenient for construction personnel to enter the ventilation opening for inspection and maintenance. In normal conditions, opening the vertical door leaf can greatly reduce the ventilation wind resistance, thereby saving the power consumption of the intake and exhaust fans; the valve has a high wave elimination rate. Given that the valve closing time is extremely short, the shock wave energy entering the project through the gap between the valve core and the valve seat is low, so the valve diffusion chamber can be eliminated or the size of the diffusion chamber can be greatly reduced, thereby significantly saving civil construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0024] Figure 2 for Figure 1 Schematic diagram of the left view structure.

[0025] Figure 3 The figure is a schematic structural diagram of a door frame according to an embodiment of the present invention.

[0026] Figure 4 It is a schematic structural diagram of a blocking door leaf according to an embodiment of the present invention.

[0027] Figure 5 The figure is a schematic structural diagram of a vertical rotating door leaf according to an embodiment of the present invention.

[0028] Figure 6The figure is a schematic structural diagram of a valve unit according to an embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the front valve body according to an embodiment of the present invention.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of a rear valve body according to an embodiment of the present invention.

[0031] Fig. 9 The figure is a schematic top view of the structure of a valve unit according to an embodiment of the present invention.

[0032] Fig.10 Schematic diagram of the wave-breaking mechanism of the valve unit according to an embodiment of the present invention.

[0033] Fig.11 Schematic diagram of the ventilation mechanism of the valve unit according to an embodiment of the present invention.

[0034] Explanation of reference numerals: 1 door frame; 11 upper frame; 12 lower frame; 13 side frame; 14 anchor hook; 15 door frame wall; 16 first cross beam; 17 second cross beam; 18 longitudinal beam; 19 support beam; 20 door axis; 21 hinge; 22 hook; 3 blocking door leaf; 31 first steel frame; 32 first panel; 33 first vertical support member; 34 first horizontal support member; 35 first lifting ring; 36 first vent; 4 vertical rotating door leaf; 41 second steel frame; 42 second panel; 43 second vertical support member; Support member; 44 second transverse support member; 45 second lifting ring; 46 second vent; 47 handle; 48 jack; 49 lock; 5 valve unit; 51 front valve body; 511 first frame structure; 512 front valve seat; 513 first ventilation channel; 52 rear valve body; 521 second frame structure; 522 rear valve seat; 523 second ventilation channel; 53 valve core; 54 return spring; 55 guide column; 551 hexagon socket head shoulder screw; 552 hexagonal cap nut; 56 hexagon socket head screw. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0036] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component; it can be a wired electrical connection, a radio connection, or a wireless communication signal connection. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numbers and letter labels to refer to features in the drawings. Like or similar labels in the drawings and description have been used to refer to like or similar parts of the present invention. As used herein, the terms "first", "second", "third", etc. are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0038] like Figures 1 to 11 As shown, according to an embodiment of the present invention, there is provided an assembled aluminum tube type explosion-proof valve, such as Figure 1 As shown, the valve comprises a door frame 1, a blocking door leaf 3, a vertical rotating door leaf 4 and a valve unit 5, wherein Figure 2As shown, the door frame 1 is embedded in the door frame wall 15, and the blocking door leaf 3 and the vertical rotating door leaf 4 are both installed on the door frame 1; the blocking door leaf 3 is fixedly connected to the door frame 1, and the vertical rotating door leaf 4 is hinged to the door frame 1; the blocking door leaf 3 is provided with a first vent 36, and the vertical rotating door leaf 4 is provided with a second vent 46, and a valve unit 5 is installed in the first vent 36 and the second vent 46. Under the action of the shock wave, the valve unit 5 can be closed, thereby preventing the shock wave from entering the valve through the first vent 36 or the second vent 46, playing a role in wave elimination. In order to facilitate maintenance and reduce the ventilation wind resistance at ordinary times, the valve is designed to be a combination of the blocking door leaf 3 and the vertical rotating door leaf 4, and the blocking door leaf 3 located at the upper part of the valve is fixedly connected to the door frame 1 by bolts. Such a setting can reduce the difficulty of civil construction and equipment installation. The vertical rotating door leaf 4 located at the lower part of the valve is hinged to the door frame 1. The vertical rotating door leaf 4 is used to provide a passage for maintenance personnel to enter the valve, so that the valve has the advantages of reliable structural strength, excellent wave absorption performance, can meet different air volume requirements, and is easy to install, maintain and use. The valve unit body 5 is embedded in the blocking door leaf 3 or the vertical rotating door leaf 4, so that the shock wave can act positively on the valve unit body 5 from any direction.

[0039] Furthermore, if Figure 3 As shown, the door frame 1 is made by welding angle steels. The door frame 1 includes an upper frame 11, a lower frame 12 and two side frames 13. The upper frame 11, the lower frame 12 and the two side frames 13 are all angle steels. The upper frame 11, one side frame 13, the lower frame 12, the other side frame 13 and the upper frame 11 are connected in sequence. An anchor hook 14 is arranged on the periphery of the door frame 1. A first crossbeam 16 is arranged in the middle of the door frame 1. Both ends of the first crossbeam 16 are respectively embedded in the door frame wall 15. The first crossbeam 16 is used as the interface between the blocking door leaf 3 and the vertical rotating door leaf 4, which can improve the load distribution of the door frame wall 15 and improve the overall load-bearing condition of the movable door. The door frame 1 located above the first crossbeam 16 is used to install the blocking door leaf 3, and the door frame 1 located below the first crossbeam 16 is used to install the vertical rotating door leaf 4. A plurality of second cross beams 17 are arranged between the first cross beam 16 and the upper frame 11, and the two ends of the second cross beam 17 are respectively connected to the two side frames 13; a plurality of longitudinal beams 18 are arranged between the first cross beam 16 and the upper frame 11, and the upper ends of the longitudinal beams 18 are connected to the upper frame 11, and the lower ends of the longitudinal beams 18 are connected to the first cross beam 16; a plurality of support beams 19 are arranged between the first cross beam 16 and the lower frame 12, and the upper ends of the support beams 19 are connected to the first cross beam 16, and the lower ends of the support beams 19 are connected to the lower frame 12; the support beams 19 and the door frame 1 are detachably connected, and the support beams 19 are used for temporary support, which can be used to reduce the deformation of the door frame 1 during transportation, erection and concrete pouring, and can also be used to improve the rigidity of the door frame 1 and assist in bearing the load; the first cross beam 16, the second cross beam 17, the longitudinal beam 18 and the support beam 19 are all steel sections.

[0040] Furthermore, if Figure 4 As shown, the blocking door leaf 3 includes a first steel frame 31 and a first panel 32, and the inner surface and the outer surface of the first steel frame 31 are covered with the first panel 32; bolt holes are provided on the door frame 1, and after the bolts pass through the blocking door leaf 3, the door frame 1 and the blocking door leaf 3 are connected through the bolt holes; the blocking door leaf 3 is provided with a plurality of first vents 36, and the plurality of first vents 36 are evenly distributed in an array on the blocking door leaf 3, and two first vertical support members are provided in the first vents 36. 33 and multiple first transverse supports 34, the multiple first transverse supports 34 are evenly distributed from the upper end to the lower end of the first vertical support member 33, the two ends of the first transverse support member 34 are respectively connected to the two first vertical supports 33, and the first vertical support members 33 are connected to the first panel 32; a hook 22 is provided on the top of the door frame wall 15, and a first lifting ring 35 is provided on the top of the blocking door leaf 3 and the two side surfaces close to the door frame wall 15, which is convenient for on-site installation, transportation and debugging of the valve.

[0041] Furthermore, if Figure 5 As shown, the vertical rotating door leaf 4 includes a second steel frame 41 and a second panel 42, and the inner surface and the outer surface of the second steel frame 41 are covered with the second panel 42; a plurality of second vents 46 are arranged on the vertical rotating door leaf 4, and two second vertical support members 43 and a plurality of second transverse support members 44 are arranged in the second vents 46, and the plurality of second transverse support members 44 are evenly distributed from the upper end to the lower end of the second vertical support member 43, and the two ends of the second transverse support member 44 are respectively connected to the two second vertical support members 43, and the second vertical support member 43 is connected to the second panel 42; a plurality of second lifting rings 45 are arranged on the top of the vertical rotating door leaf 4, which are convenient for on-site installation, transportation and debugging of the valve. Handles 47 are provided on the inner and outer surfaces of the vertical rotating door leaf 4, and the vertical rotating door leaf 4 can be opened and closed manually, which is convenient for construction personnel to enter the interior of the valve to carry out inspection and maintenance work. Under normal conditions, opening the vertical rotating door leaf 4 can greatly reduce ventilation resistance, thereby saving power consumption of the intake and exhaust fans.

[0042] Furthermore, the door frame 1 is vertically provided with a door shaft 20, and a hinge 21 is installed on the door shaft 20. One side wall of the vertical rotating door leaf 4 is hinged to the door shaft 20 through the hinge 21, so that the vertical rotating door leaf 4 can be opened to 90°, which is convenient for maintenance personnel to enter and exit; the other side wall of the vertical rotating door leaf 4 is provided with a jack 48. When the vertical rotating door leaf 4 is opened, the jack 48 is used to bear the dead weight of the vertical rotating door leaf 4 when it is opened, so as to prevent the hinge 21 from being damaged when the vertical rotating door leaf 4 is opened for a long time; a lock 49 is provided on the vertical rotating door leaf 4, and a lock 49 hole is provided on the door frame 1. After the vertical rotating door leaf 4 is closed, the lock 49 can fix the vertical rotating door leaf 4 on the door frame 1. The lock 49 is a sliding bolt type lock to prevent the valve from being separated from the door frame 1 under the action of the shock wave load.

[0043] Furthermore, if Figure 6 As shown, the valve unit 5 is used to achieve ventilation and wave elimination functions. The valve unit 5 includes a front valve body 51, a rear valve body 52, a valve core 53, a return spring 54 and a guide column 55. The front valve body 51 and the rear valve body 52 are arranged opposite to each other, and the inner surface of the front valve body 51 and the inner surface of the rear valve body 52 are in contact with each other. Figure 7 As shown, the front valve body 51 includes a first frame structure 511 and a plurality of front valve seats 512. The axis of the front valve seat 512 is parallel to the axis of the length direction of the first frame structure 511. Both ends of the front valve seat 512 are respectively connected to the two side walls of the first frame structure 511. The plurality of front valve seats 512 are evenly distributed from top to bottom in the first frame structure 511. A plurality of first ventilation channels 513 are formed between the top front valve seat 512 and the first frame structure 511, between two adjacent front valve seats 512, and between the bottom front valve seat 512 and the first frame structure 511. Figure 8As shown, the rear valve body 52 includes a second frame structure 521 and a plurality of rear valve seats 522, the axis of the rear valve seat 522 is parallel to the axis of the front valve seat 512, and both ends of the rear valve seat 522 are respectively connected to the second frame structure 521, and the plurality of rear valve seats 522 are evenly distributed from top to bottom in the second frame structure 521, and a plurality of second ventilation channels 523 are formed between the top rear valve seat 522 and the second frame structure 521, between two adjacent rear valve seats 522, and between the bottom rear valve seat 522 and the second frame structure 521. After the front valve body 51 and the rear valve body 52 are assembled, the plurality of front valve seats 512 and the plurality of rear valve seats 522 correspond to each other one by one, and there is a distance between a relative front valve seat 512 and a rear valve seat 522. A plurality of valve cores 53 are provided, and the axis of the valve core 53 is parallel to the axis of the front valve seat 512. When the valve core 53 is in the original position, the first ventilation channel 513 and the second ventilation channel 523 can be connected to form a ventilated valve airway, and the outer surface of the valve core 53 can fit with the two adjacent front valve seats 512 to block the first ventilation channel 513, so that the valve unit body 5 is in a closed state. The outer surface of the valve core 53 can fit with the two adjacent rear valve seats 522 to block the second ventilation channel 523, so that the valve unit body 5 is in a closed state. Each valve core 53 is provided with a guide column 55 at both ends, and the two ends of the guide column 55 are respectively connected to the first frame structure 511 and the second frame structure 521. The axial direction of the guide column 55 is perpendicular to the axial direction of the valve core 53. Through holes are provided at both ends of the valve core 53, and the guide column 55 passes through the through holes. The guide column 55 can provide guidance for the movement of the valve core 53; the reset spring 54 is sleeved between the end of the guide column 55 and the valve core 53, and the two ends of the guide column 55 are sleeved with the reset spring 54. The guide column 55 can ensure that the valve core 53 moves linearly along the direction of the shock wave to avoid the valve core 53 from deflecting and getting stuck. The reset spring 54 can ensure that the valve core 53 can return to its original position after the shock wave is unloaded, thereby restoring the valve to the ventilation state. By adjusting the stiffness of the reset spring 54, the valve can adapt to different installation angles and meet different use conditions. The valve unit 5 has a compact structure and reliable strength. The valve core 53 has a short stroke from the open position to the closed position, which increases the closing speed of the valve core 53 under the impact of the explosion shock wave load and improves the wave elimination efficiency. The above arrangement can ensure that the valve unit 5 is quickly closed when the shock wave acts, blocking most of the shock wave. Since the closing time of the valve core 53 is extremely short, the shock wave energy entering the project through the gap between the valve core 53 and the valve seat is low, so the valve diffusion chamber can be eliminated or the size of the diffusion chamber can be greatly reduced, thereby significantly saving civil construction costs.

[0044] The wave elimination mechanism of the valve unit 5 is as follows: Fig.10 As shown, the ventilation mechanism of the valve unit 5 is as follows Fig.11As shown. Under normal circumstances, the valve core 53 is located in the ventilation position, and the air can flow normally through the airway formed by the front valve body 51, the rear valve body 52 and the valve core 53. When a shock wave comes, the valve core 53 moves to the closed position under the action of the positive pressure, cutting off the shock wave transmission path. When the positive pressure gradually decreases to the set pressure, the valve core 53 moves to the ventilation position under the action of the return spring 54. When the shock wave pressure further decreases, the valve core 53 moves to the negative pressure closed position under the action of the negative pressure, cutting off the shock wave transmission path. When the pressure gradually returns to normal pressure, the valve core 53 moves to the ventilation position and remains stationary.

[0045] Furthermore, if Fig. 9 As shown, the valve unit 5 also includes a hexagon socket head screw 56 and a spring washer, which tightly connect the front valve body 51 and the rear valve body 52 into one; the guide column 55 includes a hexagon socket head shoulder screw 551 and a hexagonal cap nut 552, one end of the hexagon socket head shoulder screw 551 extends out of the valve core 53, and the hexagonal cap nut 552 is set at one end of the hexagon socket head shoulder screw 551.

[0046] Furthermore, the front valve seat 512 is a channel steel, the waist of the front valve seat 512 is connected to the first frame structure 511, and the legs of the front valve seat 512 extend in the direction of the rear valve seat 522. The rear valve seat 522 is a channel steel, the waist of the rear valve seat 522 is connected to the second frame structure 521, and the legs of the rear valve seat 522 extend in the direction of the front valve seat 512, and the axial direction of the valve core 53 is perpendicular to the extension direction of the legs. The valve airway structure formed by the channel steel is stable, high in strength, can reduce the impact load of the valve core 53, and at the same time has a high utilization rate of the ventilation area and low wind resistance.

[0047] Furthermore, the material of the valve core 53 is 6061 aluminum alloy, and the valve core 53 is a pipe. The valve core 53 is made of aluminum alloy material, and the valve core 53 made of aluminum alloy has good high temperature resistance and can be used in high temperature application scenarios such as smoke exhaust ports, thereby improving the environmental adaptability of the valve. The valve core 53 adopts a tubular structure, which reduces the mass of the valve core 53 while ensuring strength, shortens the closing stroke of the valve unit 5, and thus significantly improves the wave elimination rate of the valve unit 5.

[0048] Furthermore, the valve unit 5 is connected to the blocking door leaf 3 (first steel frame 31) or the vertical rotating door leaf 4 (second steel frame 41) by bolts, which can be quickly replaced; multiple valve units 5 are distributed throughout the first vent 36, and multiple valve units 5 are distributed throughout the second vent 46. Preferably, the valve unit 5 is provided with four front valve seats 512, four rear valve seats 522 and five valve cores 53, so that the valve unit 5 has a compact structure, which is conducive to improving the structural strength of the valve unit 5, reducing the impact load, and improving the ventilation resistance of the first vent 36 or the second vent 46; the explosion-proof valve adopts an assembled structure, and the valve unit 5 can calculate the rated air volume according to the ventilation area. When designing and using, the number of valve units 5 to be set can be calculated according to the air volume demand of the engineering vent, and the valve unit 5 is installed in the first vent 36 on the blocking door leaf 3 and the second vent 46 of the vertical rotating door leaf 4. In one embodiment of the present invention, the blocking door leaf 3 is provided with three rows of first vents 36 from top to bottom, and each row is provided with three first vents 36; the vertical rotating door leaf 4 is provided with two rows of second vents 46 from top to bottom, and each row is provided with three second vents 46; each first vent 36 is installed with four valve units 5 from top to bottom, and each second vent 46 is installed with two valve units 5 from top to bottom.

[0049] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0050] 1. The valve has a compact structure and reliable strength, reduces impact loads, and improves ventilation resistance of the valve ventilation duct. The valve core 53 is made of high-temperature resistant lightweight material, and the valve core 53 has a short stroke from the open position to the closed position. The above design improves the closing speed of the valve core 53 under the action of the explosion shock wave load and improves the wave elimination efficiency.

[0051] 2. A set of guide posts 55 and a return spring 54 are respectively arranged at both ends of each set of valve cores 53. The guide posts 55 can ensure that the valve moves linearly along the direction of the shock wave to prevent the valve core 53 from deflecting and getting stuck; the return spring 54 can ensure that the valve core 53 returns to its original position after unloading, so that the valve returns to the ventilation state. By adjusting the stiffness of the return spring 54, the valve can adapt to different installation angles and meet different use conditions.

[0052] 3. According to different air volume requirements of the project, a corresponding number of valve units 5 can be freely selected to be installed in the first vent 36 on the blocking door leaf 3 and the second vent 46 on the vertical rotating door leaf 4, and can adapt to the installation requirements of different hole sizes. The valve unit 5 is easy to disassemble and replace, which can reduce the difficulty of equipment maintenance.

[0053] 4. The valve adopts two forms: fixed (blocking door leaf 3) and movable (vertical door leaf 4). The blocking door leaf 3 is fixed to the door frame 1 by bolts, which has good integrity and reduces the difficulty of civil construction and equipment installation; the vertical door leaf 4 can be opened and closed manually, which is convenient for construction personnel to enter the ventilation opening for inspection and maintenance. In normal conditions, opening the vertical door leaf 4 can greatly reduce ventilation resistance, thereby saving power consumption of the intake and exhaust fans.

[0054] 5. The valve has a high wave attenuation rate. Since the valve closing time is extremely short, the shock wave energy entering the project through the gap between the valve core 53 and the valve seat (the front valve seat 512 or the rear valve seat 522) is low. Therefore, the valve diffusion chamber can be eliminated or the size of the diffusion chamber can be greatly reduced, thereby significantly saving civil construction costs.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembled aluminum tube type explosion-proof valve, characterized in that: It includes door frame, blocking door leaf, vertical rotating door leaf and valve unit, among which: The door frame is pre-buried in the door frame wall, and the blocking door leaf and the vertical rotating door leaf are both installed on the door frame; The blocking door leaf is fixedly connected to the door frame, and the vertical rotating door leaf is hinged to the door frame; The blocking door leaf is provided with a first vent, and the vertical rotating door leaf is provided with a second vent. The first vent and the second vent are both equipped with a valve unit.

2. The assembled aluminum tube type explosion-proof valve according to claim 1 is characterized in that: The door frame comprises an upper frame, a lower frame and two side frames, the upper frame, the lower frame and the two side frames are all angle steels, the upper frame, one side frame, the lower frame, the other side frame and the upper frame are connected in sequence, and the outer periphery of the door frame is provided with anchor hooks; A first crossbeam is provided in the middle of the door frame, and both ends of the first crossbeam are respectively pre-buried in the door frame wall, the door frame located above the first crossbeam is used to install the blocking door leaf, and the door frame located below the first crossbeam is used to install the vertical rotating door leaf; A plurality of second cross beams are arranged between the first cross beam and the upper frame, and the two ends of the second cross beams are respectively connected to the two side frames, and a plurality of longitudinal beams are arranged between the first cross beam and the upper frame, and the upper ends of the longitudinal beams are connected to the upper frame, and the lower ends of the longitudinal beams are connected to the first cross beam; A plurality of support beams are arranged between the first cross beam and the lower frame, the upper ends of the support beams are connected to the first cross beam, and the lower ends of the support beams are connected to the lower frame; The first cross beam, the second cross beam, the longitudinal beam and the supporting beam are all steel sections.

3. The assembled aluminum tube type explosion-proof valve according to claim 1 is characterized in that: The blocking door leaf comprises a first steel frame and a first panel, wherein the inner surface and the outer surface of the first steel frame are both covered with the first panel; The door frame is provided with a bolt hole, and after the bolt passes through the blocking door leaf, the door frame and the blocking door leaf are connected through the bolt hole; The blocking door leaf is provided with a plurality of the first vents, and the plurality of the first vents are evenly distributed in an array on the blocking door leaf. Two first vertical support members and a plurality of first transverse support members are provided in the first vents, and the plurality of the first transverse support members are evenly distributed from the upper end to the lower end of the first vertical support member. Both ends of the first transverse support member are respectively connected to the two first vertical support members, and the first vertical support member is connected to the first panel; A hook is arranged on the top of the door frame wall, and a first hanging ring is arranged on the top of the blocking door leaf and on two side surfaces close to the door frame wall.

4. The assembled aluminum tube type explosion-proof valve according to claim 1 is characterized in that: The vertical rotating door leaf comprises a second steel frame and a second panel, wherein the inner surface and the outer surface of the second steel frame are both covered with the second panel; The vertical rotating door leaf is provided with a plurality of second vents, two second vertical support members and a plurality of second transverse support members are provided in the second vents, the plurality of second transverse support members are evenly distributed from the upper end to the lower end of the second vertical support member, the two ends of the second transverse support member are respectively connected to the two second vertical support members, and the second vertical support member is connected to the second panel; A plurality of second hanging rings are arranged on the top of the vertical rotating door leaf; Handles are arranged on the inner surface and the outer surface of the vertical rotating door leaf.

5. The assembled aluminum tube type explosion-proof valve according to claim 1 is characterized in that: The door frame is vertically provided with a door shaft, a hinge is installed on the door shaft, and a side wall of the vertical rotating door leaf is hinged to the door shaft through the hinge; A jack is provided on the other side wall of the vertical rotating door leaf, and when the vertical rotating door leaf is opened, the jack is used to bear the dead weight of the vertical rotating door leaf; The vertical rotating door leaf is provided with a lock, and the door frame is provided with a lock hole. After the vertical rotating door leaf is closed, the lock can fix the vertical rotating door leaf to the door frame, and the lock is a sliding bolt type lock.

6. The assembled aluminum tube type explosion-proof valve according to claim 1 is characterized in that: The valve unit comprises a front valve body, a rear valve body, a valve core, a return spring and a guide column. The front valve body and the rear valve body are arranged opposite to each other, and the inner surface of the front valve body and the inner surface of the rear valve body are in contact with each other. The front valve body includes a first frame structure and a plurality of front valve seats, the axis of the front valve seat is parallel to the axis of the length direction of the first frame structure, the two ends of the front valve seat are respectively connected to the two side walls of the first frame structure, the plurality of front valve seats are evenly distributed from top to bottom in the first frame structure, and a first ventilation channel is formed between the front valve seat and the first frame structure and between two adjacent front valve seats. The rear valve body includes a second frame structure and a plurality of rear valve seats, the axis of the rear valve seat is parallel to the axis of the front valve seat, both ends of the rear valve seat are respectively connected to the second frame structure, the plurality of rear valve seats are evenly distributed from top to bottom in the second frame structure, and a second ventilation channel is formed between the rear valve seat and the second frame structure and between two adjacent rear valve seats. After the front valve body and the rear valve body are assembled, the plurality of front valve seats correspond to the plurality of rear valve seats one by one, and there is a distance between a front valve seat and a rear valve seat that are opposite to each other. The valve core is provided with a plurality of valve cores, the axis of the valve core is parallel to the axis of the front valve seat, the outer surface of the valve core can fit with the two adjacent front valve seats to block the first ventilation channel, and the outer surface of the valve core can fit with the two adjacent rear valve seats to block the second ventilation channel. The guide column is disposed at both ends of each valve core, and the two ends of the guide column are respectively connected to the first frame structure and the second frame structure, and the axial direction of the guide column is perpendicular to the axial direction of the valve core. Both ends of the valve core are provided with through holes, and the guide column passes through the through holes, and the guide column can provide guidance for the movement of the valve core; The return spring is sleeved between the end of the guide column and the valve core.

7. The assembled aluminum tube type explosion-proof valve according to claim 6 is characterized in that: The valve unit body also includes a hexagon socket head screw and a spring washer, The hexagon socket head screw and the spring washer tightly connect the front valve body and the rear valve body into one; The guide column includes a hexagon socket head shoulder screw and a hexagonal cap nut, one end of the hexagon socket head shoulder screw extends out of the valve core, and the hexagonal cap nut is arranged at one end of the hexagon socket head shoulder screw.

8. The assembled aluminum tube type explosion-proof valve according to claim 6 is characterized in that: The front valve seat is a channel steel, the waist of the front valve seat is connected to the first frame structure, and the legs of the front valve seat extend toward the rear valve seat. The rear valve seat is a channel steel, the waist of the rear valve seat is connected to the second frame structure, and the legs of the rear valve seat extend toward the front valve seat. The axial direction of the valve core is perpendicular to the extending direction of the legs.

9. The assembled aluminum tube type explosion-proof valve according to claim 6 is characterized in that: The material of the valve core is 6061 aluminum alloy, and the valve core is a pipe.

10. The assembled aluminum tube type explosion-proof valve according to claim 6 is characterized in that: The valve unit body is connected to the blocking door leaf or the vertical rotating door leaf through bolts; A plurality of the valve units cover the first vents, and a plurality of the valve units cover the second vents; The valve unit body is provided with four front valve seats, four rear valve seats and five valve cores; The blocking door leaf is provided with three rows of the first vents from top to bottom, and each row is provided with three of the first vents; The vertical rotating door leaf is provided with two rows of the second vents from top to bottom, and each row is provided with three second vents; each first vent is installed with four valve units from top to bottom, and each second vent is installed with two valve units from top to bottom.

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