CN105920763B - Variable-drift-diameter type orifice plate device - Google Patents
Variable-drift-diameter type orifice plate device Download PDFInfo
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- CN105920763B CN105920763B CN201610414983.2A CN201610414983A CN105920763B CN 105920763 B CN105920763 B CN 105920763B CN 201610414983 A CN201610414983 A CN 201610414983A CN 105920763 B CN105920763 B CN 105920763B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- Fluid-Damping Devices (AREA)
Abstract
The invention provides a variable-drift-diameter orifice plate device for a foam fire extinguishing system, which comprises: the flange adjusting device comprises a first flange, a guide plate, a second flange and an adjusting assembly, wherein a first connecting disc is arranged on the first flange, a plurality of baffle plates are hinged to the first connecting disc, and each baffle plate is provided with a guide column perpendicular to the surface of the baffle plate; the guide plate is fixed on the first connecting disc, the guide plate is annular, a guide hole is formed in the surface of the guide plate, and the guide column penetrates through the guide hole; the second flange is provided with a second connecting disc, and the second connecting disc is connected with the first connecting disc through a threaded connecting piece; the adjusting component is arranged between the first connecting disc and the second connecting disc, a plurality of connecting rods are hinged to the adjusting component, and the other end of each connecting rod is hinged to the baffle through a guide column. The variable-drift-diameter type pore plate device has a certain adjusting range of the drift diameter, the size of the drift diameter can be directly adjusted according to actual conditions, and the production and processing cost and the installation progress of equipment are saved.
Description
Technical Field
The invention belongs to the field of fire fighting equipment, and particularly relates to a variable-drift-diameter type orifice plate device.
Background
The foam fire extinguishing system adopts 3% or 6% foam stock solution and water to mix and then extinguish fire, the mixture of the water and the foam stock solution is mixed according to the flow ratio of the two liquids in the normal condition, and when the water is mixed with the foam stock solution, the mixing ratio of the foam stock solution and the water has errors due to the influence of parts such as a valve, a joint and the like in a conveying pipeline, so that orifice plates are added in the foam system to control the flow, but the sizes of the orifice plates which can be added at present are fixed and cannot be changed randomly, and the required final sizes of the orifice plates can be determined by repeated verification in the normal condition. If the pipeline changes through the route or changes such as valve increase and decrease, the flow in the pipeline can be influenced, and the originally installed orifice plate also needs to be verified again, thereby causing the increase of production and processing cost and the delay of installation progress.
Therefore, it is necessary to provide a pore plate device with a changeable through diameter.
Disclosure of Invention
In order to solve the above problems, the present invention provides a variable-diameter orifice plate device for use in a pipeline of a foam fire extinguishing system, comprising: the flange structure comprises a first flange, a guide plate, a second flange and an adjusting assembly, wherein a first connecting disc is arranged on the first flange, a plurality of connecting holes are formed in the first connecting disc, a plurality of baffle plates are hinged to the first connecting disc, the baffle plates are uniformly distributed on the first connecting disc, and each baffle plate is provided with a guide column perpendicular to the surface of the baffle plate; the guide plate is fixed on the first connecting disc, the guide plate is annular, a guide hole is formed in the surface of the guide plate, and the guide column penetrates through the guide hole; the second flange is provided with a second connecting disc, the second connecting disc is provided with a plurality of connecting holes, and the second connecting disc is connected with the first connecting disc through a threaded connecting piece; the adjusting component is arranged between the first connecting disc and the second connecting disc, a plurality of connecting rods are hinged to the adjusting component, and the other end of each connecting rod is connected with the baffle through the guide column in a hinged mode.
According to the variable-drift-diameter orifice plate device, the first flange and the second flange are respectively connected with a water pipe or a foam stock solution pipe, when the size of the orifice plate needs to be adjusted, the adjusting assembly between the first flange and the second flange is rotated, the adjusting assembly drives the plurality of baffles on the first connecting disc of the first flange to swing through the connecting rod, one side of each baffle extends inwards out of the through hole of the first flange in the swinging process, one side of each baffle extends out of the through hole of the first flange at the same time, an approximate round hole smaller than the through hole of the first flange can be spliced, the extending range of the baffles towards the inner ring of the first flange can be controlled by adjusting the swinging range of the baffles, and the size of the approximate round hole can be adjusted, so that the drift diameter of the orifice plate device can be changed.
In addition, the variable-diameter orifice plate device in the above embodiment of the present invention may further have the following additional technical features:
preferably, a plurality of circumferentially extending long holes are formed in the adjusting assembly, and the long holes correspond to the connecting holes in the first connecting disc and the second connecting disc one to one.
According to the variable-drift-diameter orifice plate device, the first connecting disc of the first flange and the second connecting disc of the second flange are connected through the threaded connecting piece, and the long hole in the adjusting assembly between the first connecting disc and the second connecting disc can just enable the threaded connecting piece to penetrate through, and meanwhile, circumferential swing on the adjusting assembly is not influenced. When the latus rectum of orifice plate device needs to be changed, only need unscrew threaded connection spare earlier, then adjust the angle of baffle through the angle that changes adjusting part, screw up threaded connection spare again and can accomplish the change to the latus rectum of orifice plate device, need not to unpack first flange and second flange apart.
Preferably, the outer edge of the adjusting component is provided with a row of axial positioning grooves, the outer edge of the first connecting disc is hinged with a positioning clamping plate, and the positioning clamping plate is matched with the positioning grooves.
According to the variable-drift-diameter type orifice plate device, after the adjusting component rotates to the selected position, the relative position between the adjusting component and the first flange can be fixed by buckling the positioning clamping plate on the first connecting disc of the first flange into the positioning groove on the adjusting component, so that the swinging angle of the baffle on the first connecting disc is fixed, a stable drift diameter which is not influenced by vibration or water pressure is obtained, and the adjustment of the drift diameter of the orifice plate by workers is facilitated.
Preferably, the adjustment assembly comprises: the slot hole is formed in the end face of the adjusting ring, and the positioning groove is formed in the outer annular surface of the adjusting ring; the connecting rod is hinged to the linkage ring, and the linkage ring is circumferentially connected with the adjusting ring.
According to the variable-drift-diameter orifice plate device, the adjusting ring is arranged between the first connecting disc and the second connecting disc, the end face of the adjusting ring is provided with the long hole, the threaded connecting piece for connecting the first connecting disc and the second connecting disc penetrates through the long hole in the adjusting ring, and after the threaded connecting piece between the first connecting disc and the second connecting disc is loosened, the adjusting ring can circumferentially swing within the length range of the long hole. The adjusting connecting rod is hinged to the linkage ring, the linkage ring is connected with the adjusting ring in the circumferential direction, when the adjusting ring swings in the circumferential direction, the linkage ring swings in the circumferential direction synchronously, the linkage ring pulls the connecting rod to swing the baffles, and when the baffles swing, the drift diameter of the pore plate surrounded by the baffles also changes accordingly.
Preferably, the adjusting ring and the linkage ring are of an integral structure.
According to the variable-drift-diameter orifice plate device, the adjusting ring and the linkage ring can be processed into an integrated structure through casting or welding, so that the number of parts of the orifice plate device can be reduced.
Preferably, the adjusting ring and the linkage ring are of a split structure, a shifting strip is arranged on the adjusting ring, a clamping groove is formed in the linkage ring, and the end of the shifting strip extends into the clamping groove.
According to the variable-drift-diameter orifice plate device, the adjusting ring and the linkage ring are of a split structure, the adjusting ring and the linkage ring are two mutually independent parts, during assembly, the hinged installation of the connecting rod and the linkage ring is completed firstly, then the adjusting ring is assembled, the end part of the poking strip on the adjusting ring extends into the clamping groove which is arranged in advance on the linkage ring, and when the adjusting ring swings in the circumferential direction, the poking strip can drive the linkage ring to rotate synchronously.
Preferably, the linkage ring comprises a flange and a guide cylinder, the flange is arranged at one end of the guide cylinder, the connecting rod is hinged to the flange, and the clamping groove is formed in the outer side face of the guide cylinder.
According to the variable-drift-diameter orifice plate device, the flanging on the linkage ring is used for hinging the connecting rod, and the guide cylinder on the linkage ring is used for arranging the clamping groove for placing the shifting strip, so that the connecting rod and the shifting strip are not interfered with each other.
Preferably, the edge of the inner ring of the second connecting disc is provided with a counter bore step, and the end part of the guide cylinder extends into the counter bore step.
According to the variable-drift-diameter orifice plate device, the end part of the guide cylinder on the linkage ring extends into the counter bore step on the second connecting disc, so that the linkage ring is radially fixed, and when the linkage ring swings along with the adjusting ring, the linkage ring can only swing in situ and can only swing through the connecting rod traction baffle, so that the orifice plate device can more accurately adjust the drift diameter.
Preferably, the guide post is fixedly connected to the baffle plate, and the connecting rod is hinged to the guide post.
According to the variable-drift-diameter orifice plate device, the guide post can be fixedly connected to the baffle plate, one end of the connecting rod is hinged with the guide post, and the other end of the connecting rod is hinged with the linkage ring.
Preferably, the guide post is hinged to the baffle, and the connecting rod is fixedly connected with the guide post.
According to the variable-drift-diameter orifice plate device, the guide post can be hinged with the baffle plate, namely the guide post can rotate relative to the baffle plate, one end of the connecting rod is fixedly connected with the guide post, and the other end of the connecting rod is hinged with the linkage ring.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic diagram of a full cross-sectional view of one embodiment of a variable-bore orifice plate assembly of the present invention;
fig. 2 is a schematic structural view of a cross section a in fig. 1.
In the above figures: 1 a first flange; 101 a first splice tray; 102 a positioning clamping plate; 2, a baffle plate; 3 a guide post; 4, a guide plate; 401 a pilot hole; 5 a second flange; 501 a second connecting disc; 6, connecting rods; 7 adjusting ring; 701, a long hole; 702 a positioning groove; 703 shifting; 8 a link ring; 801 flanging; 802 to the cartridge.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Referring to fig. 1 and 2, the present invention provides a variable-diameter orifice plate device for use in a pipeline of a foam fire extinguishing system, comprising: the flange structure comprises a first flange 1, a guide plate 4, a second flange 5 and an adjusting assembly, wherein a first connecting disc 101 is arranged on the first flange 1, a plurality of connecting holes are formed in the first connecting disc 101, a plurality of baffle plates 2 are hinged to the first connecting disc 101, the baffle plates 2 are uniformly distributed on the first connecting disc 101, and each baffle plate 2 is provided with a guide column 3 perpendicular to the surface of the baffle plate; the guide plate 4 is fixed on the first connecting disc 101, the guide plate 4 is annular, a guide hole 401 is formed in the surface of the guide plate 4, and the guide column 3 penetrates through the guide hole 401; a second connecting disc 501 is arranged on the second flange 5, a plurality of connecting holes are formed in the second connecting disc 501, and the second connecting disc 501 is connected with the first connecting disc 101 through a threaded connecting piece; the adjusting component is arranged between the first connecting disc 101 and the second connecting disc 501, a plurality of connecting rods 6 are hinged to the adjusting component, and the other end of each connecting rod 6 is hinged to the baffle 2 through the guide column 3.
In the above embodiment, the first flange 1 and the second flange 5 are respectively connected with a water pipe or a foam stock solution pipe, when the size of the orifice plate needs to be adjusted, the adjusting assembly between the first flange 1 and the second flange 5 is rotated, the adjusting assembly drives the plurality of baffles 2 on the first connecting disc 101 of the first flange 1 to swing through the connecting rod 6, in the swinging process of the baffles 2, one side of each baffle 2 extends inwards out of the through hole of the first flange 1, one side of each baffle 2 extends out of the through hole of the first flange 1 at the same time, and can be spliced into an approximate round hole smaller than the through hole of the first flange 1, and the extending amplitude of each baffle 2 towards the inner ring of the first flange 1 can be controlled by adjusting the swinging amplitude of the baffles 2, so that the size of the approximate round hole can be adjusted, and the through diameter of the orifice plate device can be changed.
In addition, the variable-diameter orifice plate device in the above embodiment of the present invention may further have the following additional technical features:
referring to fig. 2, according to an embodiment of the present invention, a plurality of circumferentially extending long holes 701 are provided on the adjusting assembly, and the long holes 701 correspond to the connecting holes on the first connecting plate 101 and the second connecting plate 501 one to one.
In the above embodiment, the first connecting disc 101 of the first flange 1 and the second connecting disc 501 of the second flange 5 are connected by the threaded connecting piece, and the long hole 701 on the adjusting assembly between the first connecting disc 101 and the second connecting disc 501 just allows the threaded connecting piece to pass through, and simultaneously does not affect the circumferential swing on the adjusting assembly. When the latus rectum of orifice plate device needs to be changed, only need unscrew threaded connection spare earlier, then adjust the angle of baffle 2 through the angle that changes adjusting part, screw up threaded connection spare again and can accomplish the change to the latus rectum of orifice plate device, need not to unpack first flange 1 and second flange 5 apart.
Referring to fig. 2, according to an embodiment of the present invention, a row of axial positioning grooves 702 are provided on an outer edge of the adjusting assembly, and a positioning clip 102 is hinged on an outer edge of the first connecting disc 101, wherein the positioning clip 102 is matched with the positioning grooves 702.
In the above embodiment, after the adjusting assembly rotates to a selected position, the relative position between the adjusting assembly and the first flange 1 can be fixed by buckling the positioning clamping plate 102 on the first connecting disc 101 of the first flange 1 into the positioning groove 702 on the adjusting assembly, so that the swing angle of the baffle 2 on the first connecting disc 101 is fixed, thereby obtaining a stable drift diameter which is not affected by vibration or water pressure, and being beneficial to the adjustment of the drift diameter of the orifice plate by a worker.
Referring to fig. 1 and 2, according to one embodiment of the present invention, the adjusting assembly includes: the adjusting ring 7 and the linkage ring 8, the slot hole 701 is arranged on the end surface of the adjusting ring 7, and the positioning groove 702 is arranged on the outer annular surface of the adjusting ring 7; the connecting rod 6 is hinged on the linkage ring 8, and the linkage ring 8 is circumferentially connected with the adjusting ring 7.
In the above embodiment, the adjusting ring 7 is disposed between the first connecting plate 101 and the second connecting plate 501, the end surface of the adjusting ring 7 is provided with the elongated hole 701, the threaded connecting member connecting the first connecting plate 101 and the second connecting plate 501 passes through the elongated hole 701 of the adjusting ring 7, and after the threaded connecting member between the first connecting plate 101 and the second connecting plate 501 is loosened, the adjusting ring 7 can circumferentially swing within the length range of the elongated hole 701. The adjusting connecting rod 6 is hinged to the linkage ring 8, the linkage ring 8 is connected with the adjusting ring 7 in the circumferential direction, when the adjusting ring 7 swings in the circumferential direction, the linkage ring 8 swings in the circumferential direction synchronously, meanwhile, the linkage ring 8 pulls the connecting rod 6 to enable the baffle plates 2 to swing, and when the baffle plates 2 swing, the drift diameter of the pore plate surrounded by the baffle plates 2 changes accordingly.
According to one embodiment of the invention, the adjusting ring 7 is of one-piece construction with the coupling ring 8.
In the above embodiment, the adjusting ring 7 and the link ring 8 may be formed as an integral structure by casting or welding, which reduces the number of parts of the orifice plate device of the present invention.
Referring to fig. 1 and 2, according to an embodiment of the present invention, the adjusting ring 7 and the linkage ring 8 are in a split structure, a dial bar 703 is disposed on the adjusting ring 7, a slot is disposed on the linkage ring 8, and an end of the dial bar 703 extends into the slot.
In the above embodiment, the adjusting ring 7 and the link ring 8 are of a split structure, the adjusting ring 7 and the link ring 8 are two independent parts, during assembly, the connecting rod 6 and the link ring 8 are hinged and mounted, and then the adjusting ring 7 is assembled, so that the end of the shifting strip 703 on the adjusting ring 7 extends into a clamping groove preset on the link ring 8, and when the adjusting ring 7 swings in the circumferential direction, the shifting strip 703 drives the link ring 8 to rotate synchronously.
Referring to fig. 2, according to an embodiment of the present invention, the link ring 8 includes a flange 801 and a guide cylinder 802, the flange 801 is disposed at one end of the guide cylinder 802, the connecting rod 6 is hinged on the flange 801, and the engaging slot is disposed on an outer side of the guide cylinder 802.
In the above embodiment, the flange 801 on the link ring 8 is used for hinging the connecting rod 6, and the guide cylinder 802 on the link ring 8 is used for arranging the clamping groove for placing the shifting strip 703, so that the connecting rod 6 and the shifting strip 703 do not interfere with each other.
According to an embodiment of the present invention, the edge of the inner ring of the second connecting plate 501 is provided with a counter bore step, and the end of the guide cylinder 802 extends into the counter bore step.
In the above embodiment, the end of the guide cylinder 802 on the link ring 8 extends into the counter bore step on the second connecting disc 501, so that the link ring 8 is radially fixed, and when the link ring 8 swings with the adjusting ring 7, the link ring 8 can only swing in situ and the baffle 2 is pulled by the connecting rod 6 to swing, so that the pore plate device of the present invention can more accurately adjust the drift diameter.
Referring to fig. 1 and 2, according to an embodiment of the present invention, the guide post 3 is fixedly coupled to the barrier 2, and the link 6 is hingedly coupled to the guide post 3.
In the above embodiment, the guiding column 3 may be fixedly connected to the baffle 2, and one end of the connecting rod 6 is hinged to the guiding column 3, and the other end is hinged to the linkage ring 8.
According to an embodiment of the present invention, the guiding column 3 is hinged to the baffle 2, and the connecting rod 6 is fixedly connected to the guiding column 3.
In the above embodiment, the guiding column 3 may be hinged to the baffle 2, that is, the guiding column 3 may rotate relative to the baffle 2, one end of the connecting rod 6 is fixedly connected to the guiding column 3, and the other end is hinged to the linkage ring 8.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A variable-drift-diameter orifice plate device for use in a pipeline of a foam fire suppression system, comprising:
the flange structure comprises a first flange (1), wherein a first connecting disc (101) is arranged on the first flange (1), a plurality of connecting holes are formed in the first connecting disc (101), a plurality of baffle plates (2) are hinged to the first connecting disc (101), the baffle plates (2) are uniformly distributed on the first connecting disc (101), and each baffle plate (2) is provided with a guide column (3) perpendicular to the surface of the baffle plate;
the guide plate (4) is fixed on the first connecting disc (101), the guide plate (4) is annular, a guide hole (401) is formed in the surface of the guide plate (4), and the guide column (3) penetrates through the guide hole (401);
the second flange (5), a second connecting disc (501) is arranged on the second flange (5), a plurality of connecting holes are formed in the second connecting disc (501), and the second connecting disc (501) is connected with the first connecting disc (101) through a threaded connecting piece;
the adjusting assembly is arranged between the first connecting disc (101) and the second connecting disc (501), a plurality of connecting rods (6) are hinged to the adjusting assembly, and the other end of each connecting rod (6) is hinged to the baffle (2) through the guide column (3);
the adjusting assembly is provided with a plurality of circumferentially extending long holes (701), and the long holes (701) correspond to the connecting holes in the first connecting disc (101) and the second connecting disc (501) one by one;
a row of axial positioning grooves (702) are formed in the outer edge of the adjusting assembly, a positioning clamping plate (102) is hinged to the outer edge of the first connecting disc (101), and the positioning clamping plate (102) is matched with the positioning grooves (702);
the adjustment assembly includes: the adjusting ring comprises an adjusting ring (7) and a linkage ring (8), wherein the long hole (701) is formed in the end face of the adjusting ring (7), and the positioning groove (702) is formed in the outer annular surface of the adjusting ring (7); the connecting rod (6) is hinged to the linkage ring (8), and the linkage ring (8) is circumferentially connected with the adjusting ring (7).
2. A variable-throat orifice plate arrangement according to claim 1, wherein the adjusting ring (7) is of unitary construction with the linkage ring (8).
3. The variable-drift-diameter orifice plate device according to claim 1, wherein the adjusting ring (7) and the linkage ring (8) are of a split structure, a shifting strip (703) is arranged on the adjusting ring (7), a clamping groove is arranged on the linkage ring (8), and the end part of the shifting strip (703) extends into the clamping groove.
4. The variable-drift-diameter orifice plate device according to claim 3, wherein the linkage ring (8) comprises a flange (801) and a guide cylinder (802), the flange (801) is arranged at one end of the guide cylinder (802), the connecting rod (6) is hinged on the flange (801), and the clamping groove is arranged on the outer side face of the guide cylinder (802).
5. The variable-throat orifice plate apparatus of claim 4, wherein the rim of the inner ring of the second connecting plate (501) is provided with a counter bore step into which the end of the guide cylinder (802) projects.
6. A variable-aperture orifice plate assembly according to any one of claims 1 to 5, characterised in that the guide posts (3) are fixedly connected to the baffle plate (2), and the connecting rods (6) are hingedly connected to the guide posts (3).
7. A variable-aperture orifice plate apparatus as claimed in any one of claims 1 to 5 in which the guide posts (3) are hingedly connected to the flapper (2) and the connecting rods (6) are fixedly connected to the guide posts (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414983.2A CN105920763B (en) | 2016-06-13 | 2016-06-13 | Variable-drift-diameter type orifice plate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414983.2A CN105920763B (en) | 2016-06-13 | 2016-06-13 | Variable-drift-diameter type orifice plate device |
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| Publication Number | Publication Date |
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| CN105920763A CN105920763A (en) | 2016-09-07 |
| CN105920763B true CN105920763B (en) | 2021-10-08 |
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| CN201610414983.2A Active CN105920763B (en) | 2016-06-13 | 2016-06-13 | Variable-drift-diameter type orifice plate device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109381825A (en) * | 2017-08-07 | 2019-02-26 | 南京消防器材股份有限公司 | Bottle group type fine water mist fire-extinguishing system |
| CN108816540B (en) * | 2018-06-25 | 2020-12-22 | 东阳市幻美电子商务有限公司 | Forced induction self sealss shower nozzle |
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| CN105423050A (en) * | 2015-12-24 | 2016-03-23 | 广船国际有限公司 | Adjustable throttle orifice device |
| CN205683433U (en) * | 2016-06-13 | 2016-11-16 | 西安新竹防灾救生设备有限公司 | Variable path formula orifice fitting |
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| SU777329A1 (en) * | 1978-09-05 | 1980-11-07 | Сибирский зональный научно-исследовательский и проектный институт типового и экспериментального проектирования жилых и общественных зданий | Apparatus for heat insulating of pipelines |
| CN2758604Y (en) * | 2004-11-29 | 2006-02-15 | 黄正波 | Energy-saving household coal stove |
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| CN205683433U (en) * | 2016-06-13 | 2016-11-16 | 西安新竹防灾救生设备有限公司 | Variable path formula orifice fitting |
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| Publication number | Publication date |
|---|---|
| CN105920763A (en) | 2016-09-07 |
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