Multiphase media fire monitors, firefighting methods and usage instructions

Abstract

This invention belongs to the field of fire protection technology, specifically relating to a multiphase medium fire monitor, fire protection method, and usage method. The multiphase medium fire monitor includes: an outer cylinder; a flow guide coaxially disposed within the outer cylinder, the flow guide and the outer cylinder forming an annular channel allowing a first medium to pass through; and an extension pipe coaxially disposed on the flow guide for conveying a second medium, the front end of the extension pipe extending to the confluence of the first medium.

Description

Technical Field

[0001] This invention belongs to the field of fire protection technology, specifically relating to a multiphase medium fire monitor, a multiphase medium fire protection method, and a method of using a multiphase medium fire monitor. Background Technology

[0002] The media used in the petrochemical industry are often flammable and explosive, leading to frequent fire accidents.

[0003] The petrochemical industry produces media with high calorific value and fast combustion speed, resulting in high heat release rate and surrounding heat radiation. This requires fire monitors to have both fire extinguishing and cooling protection functions.

[0004] Currently, conventional direct-flow fire monitors have two working modes: direct current jet and spray cooling. However, the extinguishing medium sprayed by this type of fire monitor can only be water or foam liquid. Foam liquid can play a role in heat insulation of oxygen and cooling in extinguishing fire, but it is not as good as dry powder extinguishing agent in rapidly controlling combustion. Therefore, it is necessary to develop fire monitors that can spray liquid phase and dry powder in a coordinated manner.

[0005] Conventional deflector fire monitors cannot spray dry powder. How to enable fire monitors to spray both dry powder and liquid phases simultaneously, and to achieve a longer spray range, is a technical problem that urgently needs to be solved.

[0006] Therefore, it is necessary to comprehensively consider the structure of the diversion fire monitor and develop a fire monitor that can have both direct current and spray functions, and can spray liquid phase and dry powder alone or in combination. Summary of the Invention

[0007] In view of the technical problems mentioned above, the present invention aims to provide a multiphase medium fire monitor that can solve at least one of the above technical problems.

[0008] The present invention also proposes a multiphase media fire-fighting method, which can simultaneously spray dry powder and liquid phase and has a long spray range.

[0009] This invention also proposes a method for using a multiphase medium fire monitor, applying the multiphase medium fire monitor to petrochemical fires.

[0010] According to the present invention, a multiphase medium fire monitor is provided, comprising: an outer cylinder; a flow guide coaxially disposed within the outer cylinder, wherein the flow guide and the outer cylinder form an annular channel allowing a first medium to pass through; and an extension pipe coaxially disposed on the flow guide for conveying a second medium, wherein the front end of the extension pipe extends to the confluence of the first medium.

[0011] In one specific embodiment, a conveying cavity is provided inside the guide member, and the rear end of the conveying cavity is connected to a conveying pipe.

[0012] In one specific embodiment, a rectifier is coaxially arranged inside the outer cylinder, and a conveying channel is provided inside the rectifier. The rectifier is connected to the guide member, and the extension pipe passes through the conveying cavity and connects to the conveying channel. The conveying pipe communicates with the conveying channel through the outer wall of the rectifier.

[0013] In one specific embodiment, the rectifier includes: a fixed ring coaxially disposed within the outer cylinder, a circumferential channel disposed within the fixed ring, and the conveying pipe communicating with the circumferential channel; a plurality of rectifying ribs uniformly disposed in the fixed ring in a radiating pattern along the circumferential direction, a rib channel communicating with the circumferential channel disposed within the rectifying ribs, and an axial channel communicating with the conveying cavity disposed at the convergence point of the plurality of rib channels.

[0014] In one specific embodiment, the cross-sectional structure of the rectifying rib is spindle-shaped.

[0015] In one specific embodiment, the outer cylinder includes an expansion section and a direct current section coaxially disposed on the expansion section. The expansion section is configured with an inner diameter that gradually increases from back to front. The flow guide includes a flow guide disk disposed within the axial length range of the expansion section.

[0016] In one specific embodiment, the flow guide further includes a flow guide core, the outer diameter of which is smaller than the outer diameter of the flow guide disk, and the two axial ends of the flow guide core are coaxially connected to the flow guide disk and the rectifier, respectively.

[0017] In one specific embodiment, the outer cylinder further includes a throat coaxially disposed at the rear end of the expansion section, a contraction section coaxially disposed at the rear end of the throat, the contraction section being constructed with an inner diameter that gradually decreases from back to front, and a water inlet section coaxially disposed at the rear end of the contraction section.

[0018] In one specific embodiment, the rectifier is coaxially disposed within the water inlet section.

[0019] In one specific embodiment, the DC segment is connected to the expansion segment via a telescopic mechanism, the telescopic mechanism being configured to allow the DC segment to move axially relative to the expansion segment.

[0020] In one specific embodiment, the telescopic mechanism includes: a support section arranged axially, the DC section being movably connected to the support section; a driver disposed on the support section; and a telescopic rod, the driver being connected to the DC section via the telescopic rod, thereby driving the DC section to move coaxially relative to the expansion section.

[0021] According to the present invention, a multiphase medium fire-fighting method is also provided, which uses the multiphase medium fire-fighting monitor provided by the present invention to deliver liquid phase into the outer cylinder from the rear end and dry powder into the outer cylinder from the rear end of the delivery pipe, so that the liquid phase and dry powder are sprayed out from the front end of the multiphase medium fire-fighting monitor and converge at the same position, so that the dry powder jet is carried forward by the liquid phase jet.

[0022] Compared with the prior art, the advantages of this application are as follows.

[0023] The present invention provides a conveying pipe for conveying dry powder that is connected to the side of a rectifier. The dry powder in the conveying pipe can be transported through the conveying channel of the rectifier. With this configuration, the conveying pipe will not enter the inner cavity of the outer cylinder, thus avoiding the influence of the conveying pipe on the fluid distribution inside the outer cylinder and thereby improving the range.

[0024] This invention enables the individual or synergistic spraying of liquid phase / dry powder by arranging extension tubes in the flow guide.

[0025] By controlling the length of the delivery pipe extension so that its front end is located at the junction of the liquid phases, the carrier gas used for dry powder ejection is prevented from disrupting the negative pressure zone in front of the guide, thereby improving the concentration of the liquid jet. Simultaneously, it also prevents the carrier gas from breaking through the junction of the liquid phases, which would otherwise reduce the concentration of the direct current jet. Attached Figure Description

[0026] The invention will now be described with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of an embodiment of the multiphase medium fire monitor proposed according to the present invention;

[0028] Figure 2 for Figure 1 Side view of the rectifier in the middle;

[0029] Figure 3 for Figure 2 A schematic diagram of the cross-section of the rectifying rib in the AA direction.

[0030] The reference numerals in the figure are as follows:

[0031] 1. Outer cylinder; 11. Expansion section; 12. Direct current section; 14. Throat; 15. Contraction section; 16. Inlet section;

[0032] 2. Flow guide component; 21. Flow guide plate; 22. Flow guide core; 23. Conveying chamber;

[0033] 3. Circular channel;

[0034] 4. Conveying pipe; 41. Extension pipe;

[0035] 5. Rectifier; 51. Conveying channel; 511. Rib channel; 512. Axial channel; 513. Circumferential channel; 52. Rectifying rib; 53. Fixing ring;

[0036] 6. Telescopic mechanism; 61. Support section; 62. Driver; 63. Telescopic rod;

[0037] 100. Multiphase medium fire monitor; 101. Liquid jet; 103. Confluence.

[0038] In this application, all drawings are schematic and are used only to illustrate the principles of the invention, and are not drawn to scale. Detailed Implementation

[0039] The invention will now be described with reference to the accompanying drawings.

[0040] It should be noted that in this application, the direction of the medium sprayed by the multiphase medium fire monitor according to the present invention is described as "rear end", "rear" or similar terms, that is... Figure 1 The left side. The destination of the medium sprayed by the multiphase media fire monitor is described as "front end," "forward," or similar terms, i.e. Figure 1 On the right side.

[0041] Figure 1 The structure of the multiphase medium fire monitor 100 according to the present invention is shown. For example... Figure 1 As shown, the multiphase medium fire monitor 100 mainly includes an outer cylinder 1, a flow guide 2, a rectifier 5, and a delivery pipe 4.

[0042] In this embodiment, the outer cylinder 1 is constructed in a generally cylindrical shape. The flow guide 2 is coaxially fixed inside the outer cylinder 1, and there is a gap between the outer wall of the flow guide 2 and the inner wall of the outer cylinder 1, thereby forming an annular channel 3 between the flow guide 2 and the outer cylinder 1 that allows the first medium to pass through.

[0043] In one embodiment, the first medium is a liquid phase, specifically water or foam liquid in this embodiment. When using the multiphase medium fire monitor 100, the liquid phase is transported from the rear end of the outer cylinder 1 into the outer cylinder 1, so that the liquid phase flows from back to front along the outer cylinder 1, and finally sprays out of the multiphase medium fire monitor 100 through the annular channel 3 between the guide member 2 and the outer cylinder 1.

[0044] The rectifier 5 is coaxially disposed inside the outer cylinder 1 and located behind the guide member 2. The rectifier 5 and the guide member 2 are coaxially and fixedly connected. A conveying channel 51 is provided inside the rectifier 5, and a conveying cavity 23 is provided inside the guide member 2. The conveying channel 51 and the conveying cavity 23 are connected.

[0045] The conveying pipe 4 is used to convey the second medium. The conveying pipe 4 is located on the outside of the outer cylinder 1 and passes through the side wall of the outer cylinder 1. It is connected to the conveying channel 51 through the radial outer wall of the rectifier 5. The medium can be conveyed forward along the conveying pipe 4, flowing through the conveying channel 51 of the rectifier 5 and the conveying cavity 23 of the guide member 2, and finally ejected from the front end of the guide member 2.

[0046] In one embodiment, the second medium is dry powder, specifically a powdered extinguishing agent commonly used in the fire protection field, which is well known to those skilled in the art. When using the multiphase medium fire monitor 100, the dry powder is transported into the conveying pipe 4 from the rear end of the conveying pipe 4 through a high-pressure airflow (carrier gas), causing the dry powder to flow from back to front along the conveying pipe 4, passing through the conveying channel 51 of the rectifier 5 and the conveying chamber 23 of the guide 2, and finally being sprayed out of the multiphase medium fire monitor 100.

[0047] According to the present invention, when using the multiphase medium fire monitor 100, the first medium and the second medium can be sprayed separately, or the first medium and the second medium can be sprayed simultaneously.

[0048] According to a preferred embodiment of the present invention, the first medium and the second medium converge at the same position after being ejected.

[0049] Specifically, such as Figure 1 As shown, an extension tube 41 is coaxially arranged within the conveying cavity 23 of the guide member 2. The rear end of the extension tube 41 is connected to the conveying channel 51 of the rectifier 5, meaning that the second medium in the conveying channel 51 can enter the extension tube 41. The front end of the extension tube 41 extends to the confluence point 103 of the first medium, which is the location where the liquid jet 101 formed after the liquid phase is ejected from the annular channel 3 between the guide member 2 and the expansion section 11 converges. By providing the extension tube 41, the first medium and the second medium can converge at the same location.

[0050] It is easy to understand that the junction 103 of the present invention is not limited to the junction point of the liquid jet 101, but refers generally to the vicinity of the junction point of the liquid jet 101. In a preferred embodiment, the junction 103 is within a range x before and after the junction point of the liquid jet 101, the inclination angle of the liquid jet 101 with respect to the central axis is θ, the radius of the extension tube 41 is r, and x = r / tanθ + r.

[0051] In this configuration, the liquid jet 101 and the ejected dry powder converge at the junction 103, preventing the carrier gas used for dry powder ejection from disrupting the negative pressure zone in front of the guide, thereby improving the concentration of the liquid jet 101. Simultaneously, it also prevents the carrier gas from breaking through the liquid phase convergence zone, which would otherwise reduce the concentration of the liquid jet 101. The convergence of the liquid jet 101 and the ejected dry powder at the junction 103 facilitates the entrainment of dry powder by the liquid jet 101, increasing its range.

[0052] In a specific embodiment, such as Figure 2 As shown, the rectifier 5 mainly includes a fixing ring 53 and rectifier ribs 52.

[0053] The fixing ring 53 is annular in shape and coaxially disposed inside the outer cylinder 1. The outer wall of the fixing ring 53 is connected to the inner wall of the outer cylinder 1. A circumferential channel 513 is provided inside the fixing ring 53, and the circumferential channel 513 is coaxially disposed inside the fixing ring 53. That is to say, the fixing ring 53 is hollow, and the annular cavity inside the fixing ring 53 is the circumferential channel 513. The conveying pipe 4 passes through the side wall of the outer cylinder 1 and communicates with the circumferential channel 513 through the outer wall of the fixing ring 53, thereby preventing the conveying pipe 4 from entering the outer cylinder 1 and affecting the uniformity of the fluid inside the outer cylinder 1.

[0054] Multiple rectifier ribs 52 are evenly arranged in a radiating pattern within the fixed ring 53 along the circumferential direction. Each rectifier rib 52 is provided with a rib channel 511 that communicates with the circumferential channel 513. The multiple rib channels 511 converge radially at the center of the fixed ring 53, thereby forming an axial channel 512 at the center of the fixed ring 53. The axial channel 512 communicates with the conveying cavity 23 of the guide member 2.

[0055] In a preferred embodiment, the radial thickness of the fixing ring 53 is less than the thickness of the outer cylinder 1. A groove for installing the fixing ring 53 is provided on the inner wall of the outer cylinder 1. After the fixing ring 53 is installed on the inner wall of the outer cylinder 1 through the groove, the fixing ring 53 can be completely nested in the outer cylinder 1, and the inner sidewall of the fixing ring 53 is flush with the inner wall of the outer cylinder 1.

[0056] In a preferred embodiment, the rectifier rib 52 has a spindle-shaped cross-section, such as... Figure 3 As shown. This configuration can further improve the rectification effect of rectifier 5.

[0057] In a specific embodiment, such as Figure 1 As shown, the outer cylinder 1 includes an expansion section 11 and a direct current section 12 coaxially disposed at the front end of the expansion section 11. The expansion section 11 is constructed as a cone shape with its inner diameter gradually increasing from back to front, while the direct current section 12 is constructed as a cylinder with a constant diameter. The flow guide 2 includes a flow guide disk 21, the axial rear end of which is disposed within the axial length of the expansion section 11; that is, the axial rear end of the flow guide disk 21 is adapted to the inner wall of the expansion section 11 to form an annular channel 3. The direct current section 12 is configured to be coaxially movable relative to the expansion section 11.

[0058] In this configuration, the injection angle of the liquid jet 101 can be adjusted by regulating the axial position of the DC section 12 relative to the expansion section 11. Specifically, when the DC section 12 is positioned relative to the expansion section 11 towards... Figure 1 After the left side (rear end) of the expansion section 11 moves, the liquid phase is scattered along the inner wall of the expansion section 11 through the annular channel 3, causing the liquid phase to spray out in a flower-like pattern. When the direct current section 12 moves relative to the expansion section 11 towards... Figure 1 After the right side (front end) of the liquid jet moves, the liquid phase is scattered along the inner wall of the expansion section 11 through the annular channel 3. When the liquid phase comes into contact with the direct current section 12, the direct current section 12 changes the flow direction of the liquid phase, causing the liquid phase to spray to the right, or even converge towards the central axis of the multiphase medium fire monitor 100. By changing the axial position of the direct current section 12 relative to the expansion section 11, the liquid jet 101 can be adjusted from the scattering angle (spraying out in a flower shape) to the confluence angle (converging towards the central axis of the multiphase medium fire monitor 100).

[0059] When simultaneously spraying dry powder and liquid, the axial position of the DC section 12 relative to the expansion section 11 is adjusted so that the liquid jet 101 converges at the front port of the extension tube 41 (convergence point 103).

[0060] According to a specific embodiment of the present invention, the DC section 12 is connected to the expansion section 11 via a telescopic mechanism 6, the telescopic mechanism 6 being configured to allow the DC section 12 to move axially relative to the expansion section 11.

[0061] In this embodiment, the telescopic mechanism 6 includes a support section 61, a driver 62, and a telescopic rod 63. The support section 61 is axially disposed at the edge of the maximum outer diameter of the expansion section 11. The DC section 12 is movably connected to the support section 61, meaning that the DC section 12 can move axially along the support section 61. The driver 62 is fixedly disposed on the support section 61 and is connected to the DC section 12 via the telescopic rod 63. After the driver 62 is activated, it can drive the telescopic rod 63 to move axially, thereby causing the DC section 12 to move coaxially relative to the expansion section 11.

[0062] In one specific embodiment, the support section 61 is connected to the expansion section 11 by welding or other means. The diameter of the support section 61 is slightly smaller than the diameter of the DC section 12 to ensure that the DC section 12 can extend and retract.

[0063] According to the present invention, the guide plate 21 is generally circular in shape. The outer wall of the guide plate 21 is constructed in a shape that gradually increases in outer diameter from back to front, which is beneficial for guiding the fluid in the outer cylinder 1, so that the fluid in the outer cylinder 1 is ejected from the annular channel 3 between the guide plate 21 and the expansion section 11.

[0064] The flow guide 2 also includes a flow guide core 22 coaxially fixed at the rear end of the flow guide disk 21. The flow guide core 22 is constructed in the shape of a cylindrical rod, and its outer diameter is smaller than that of the flow guide disk 21. The rectifier 5 is located behind the flow guide 2 and is coaxially fixedly connected to the flow guide core 22.

[0065] The conveying cavity 23 of the guide member 2 is coaxially arranged within the guide core 22 and the guide disk 21, and the extension tube 41 is coaxially arranged within the conveying cavity 23 of the guide member 2. That is, the extension tube 41 passes through the guide core 22 and the guide disk 21. The rear end of the extension tube 41 passes through the guide core 22 and communicates with the axial channel 512 of the rectifier 5. The front end of the extension tube 41 passes through the guide disk 21 and extends forward to the confluence 103.

[0066] According to the present invention, the outer cylinder 1 further includes a throat 14 coaxially disposed at the rear end of the expansion section 11, and a contraction section 15 coaxially disposed at the rear end of the throat 14. The contraction section 15 is configured such that its inner diameter gradually decreases from rear to front, and a water inlet section 16 is coaxially disposed at the rear end of the contraction section 15. In this configuration, the liquid phase flows sequentially from rear to front along the water inlet section 16, the contraction section 15, the throat 14, the expansion section 11, and the direct flow section 12, and is finally ejected from the multiphase medium fire cannon 100. When the liquid phase passes through the contraction section 15, the size of the contraction section 15 gradually decreases, thereby increasing the flow velocity of the liquid phase. After passing through the throat 14, the liquid phase is ejected through the annular channel 3 between the expansion section 11 and the guide plate 21.

[0067] In one specific embodiment, the inlet section 16, the contraction section 15, the throat 14, and the expansion section 11 can be connected by welding or casting. The rectifier 5 is installed in the inlet section 16 by welding or other means, and the guide core 22 is connected to the rectifier 5 by welding or other means. The delivery pipe 4 is connected to the rectifier 5 by welding, and the extension pipe 41 is connected to the rectifier 5 by welding.

[0068] In one embodiment, the rectifier 5 has 2-12 rectifier ribs 52, preferably 6.

[0069] In one embodiment, the diameter of the throat 14 is 0.6-0.9 times, preferably 0.8 times, the diameter of the inlet section 16.

[0070] In one embodiment, the diameter of the guide core 22 is 0.1-0.4 times the diameter of the throat 14, preferably 0.2 times.

[0071] In a preferred embodiment, the maximum diameter of the guide plate 21 is located at the axial midpoint of the expansion section 11.

[0072] In one embodiment, the maximum diameter of the guide disk 21 is 6-8 times the diameter of the guide core 22, preferably 7 times.

[0073] In one embodiment, the diameter of the delivery pipe 4 is 0.6-0.95 times the diameter of the guide core 22, preferably 0.8 times.

[0074] In a preferred embodiment, the angle between the inner wall of the contraction section 15 and the central axis is 30°, and the angle between the inner wall of the expansion section 11 and the central axis is 45°.

[0075] In one embodiment, the length of the DC section 12 is 0.2-0.8 times the maximum diameter of the guide plate 21, preferably 0.4-0.6 times, and more preferably 0.5 times.

[0076] In one embodiment, the extension tube 41 extends beyond the DC section 12 by 5 to 15 times the maximum diameter of the guide plate 21, preferably 7 to 13 times, and more preferably 10 times.

[0077] According to the present invention, a multiphase medium fire-fighting method is also provided. Using the multiphase medium fire monitor 100 provided according to the present invention, the rear end of the water inlet section 16 of the outer cylinder 1 is connected to a liquid phase, and the liquid phase is conveyed into the outer cylinder 1 from the rear end. The rear end of the conveying pipe 4 is connected to a dry powder, and the dry powder is conveyed into the conveying pipe 4 from the rear end. The liquid phase and the dry powder are sprayed out from the front end of the multiphase medium fire monitor 100 and converge at the same position, so that the dry powder jet is carried forward by the liquid phase jet.

[0078] When using the flowering mode of the multiphase medium fire monitor 100 provided according to the present invention, the telescopic rod 63 is controlled by the driver 62 to put the DC section 12 in the retracted position (the DC section 12 moves backward relative to the expansion section 11), so that the liquid phase is rectified from the water inlet section 16 by the rectifier 5, passes through the contraction section 15 and the throat 14, and is sprayed out through the annular channel 3 between the guide plate 21 and the expansion section 11 to form the flowering mode.

[0079] When using the DC jet mode of the multiphase medium fire monitor 100 provided according to the present invention, the telescopic rod 63 is controlled by the driver 62 to make the DC section 12 extend (the DC section 12 moves forward relative to the expansion section 11), so that the liquid phase is rectified from the water inlet section 16 by the rectifier 5, passes through the contraction section 15 and the throat 14, and is ejected through the annular channel 3 between the guide plate 21 and the expansion section 11, and then is redirected by the DC section 12 to form a DC jet.

[0080] When using the multiphase medium fire cannon 100 provided according to the present invention to spray dry powder, nitrogen gas carries dry powder into the conveying pipe 4, passes through the conveying channel 51 and extension pipe 41 of the rectifier 5, and then sprays out through the extension pipe 41 to form a dry powder jet.

[0081] When using the multiphase medium fire monitor 100 provided according to the present invention for DC / dry powder coordinated spraying, the multiphase medium fire monitor 100 is adjusted to DC jet mode, and dry powder is sprayed at the same time. Then the dry powder is carried forward by the liquid phase jet 101 and finally the dry powder / DC jet reaches a longer spraying distance.

[0082] Experimental Example 1

[0083] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0084] Liquid phase pressure 1MPa, flow rate 60L / s.

[0085] Dry powder flow rate: 6 kg / s.

[0086] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0087] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0088] The rectifier 5 has 6 rectifier ribs 52.

[0089] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0090] The length of the DC section 12 is 4.6cm, and the length of the extension tube 41 beyond the front end of the DC section 12 is 92cm. At this time, the front end of the extension tube 41 is closest to the intersection 103 of the liquid jet 101.

[0091] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 76m, 45m, and 68m respectively.

[0092] Experimental Example 2

[0093] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0094] Liquid phase pressure 1MPa, flow rate 60L / s.

[0095] Dry powder flow rate: 6 kg / s.

[0096] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0097] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0098] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0099] The length of DC section 12 is 4.6cm, and the length of extension tube 41 beyond the front end of DC section 12 is 92cm.

[0100] The parameters are the same as in Experiment Example 1, and the number of rectifier 5 ribs 52 is 1.

[0101] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 62m, 48m, and 56m respectively.

[0102] Experiment Example 3

[0103] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0104] Liquid phase pressure 1MPa, flow rate 60L / s.

[0105] Dry powder flow rate: 6 kg / s.

[0106] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0107] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0108] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0109] The length of DC section 12 is 4.6cm, and the length of extension tube 41 beyond the front end of DC section 12 is 92cm.

[0110] The parameters are the same as in Experiment 1, except that the rectifier 5 has two rectifier ribs 52.

[0111] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 70m, 46m, and 62m respectively.

[0112] Experiment Example 4

[0113] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0114] Liquid phase pressure 1MPa, flow rate 60L / s.

[0115] Dry powder flow rate: 6 kg / s.

[0116] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0117] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0118] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0119] The length of DC section 12 is 4.6cm, and the length of extension tube 41 beyond the front end of DC section 12 is 92cm.

[0120] The parameters are the same as in Experiment Example 1, and the number of rectifier 5 ribs 52 is 4.

[0121] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 73m, 45m, and 65m respectively.

[0122] Experimental Example 5

[0123] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0124] Liquid phase pressure 1MPa, flow rate 60L / s.

[0125] Dry powder flow rate: 6 kg / s.

[0126] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0127] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0128] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0129] The length of DC section 12 is 4.6cm, and the length of extension tube 41 beyond the front end of DC section 12 is 92cm.

[0130] The parameters are the same as in Experiment Example 1, and the number of rectifier 5 ribs 52 is 8.

[0131] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 74m, 45m, and 65.5m respectively.

[0132] Experimental Example 6

[0133] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0134] Liquid phase pressure 1MPa, flow rate 60L / s.

[0135] Dry powder flow rate: 6 kg / s.

[0136] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0137] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0138] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0139] The length of DC section 12 is 4.6cm, and the length of extension tube 41 beyond the front end of DC section 12 is 92cm.

[0140] The parameters are the same as in Experiment Example 1, and the number of rectifier 5 ribs 52 is 10.

[0141] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 71m, 44m, and 65m respectively.

[0142] Experimental Example 7

[0143] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0144] Liquid phase pressure 1MPa, flow rate 60L / s.

[0145] Dry powder flow rate: 6 kg / s.

[0146] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0147] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0148] The rectifier 5 has 6 rectifier ribs 52.

[0149] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0150] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0151] The parameters mentioned above are the same as in Experiment Example 1, except that the length of DC section 12 is 3cm.

[0152] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 62m, 45m, and 54m respectively.

[0153] Experimental Example 8

[0154] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0155] Liquid phase pressure 1MPa, flow rate 60L / s.

[0156] Dry powder flow rate: 6 kg / s.

[0157] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0158] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0159] The rectifier 5 has 6 rectifier ribs 52.

[0160] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0161] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0162] The parameters are the same as in Experiment Example 1, except that the length of DC section 12 is 3.4 cm.

[0163] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 64m, 45m, and 56m respectively.

[0164] Experiment Example 9

[0165] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0166] Liquid phase pressure 1MPa, flow rate 60L / s.

[0167] Dry powder flow rate: 6 kg / s.

[0168] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0169] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0170] The rectifier 5 has 6 rectifier ribs 52.

[0171] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0172] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0173] The parameters are the same as in Experiment Example 1, except that the length of DC section 12 is 3.8 cm.

[0174] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 68m, 45m, and 60m respectively.

[0175] Experimental Example 10

[0176] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0177] Liquid phase pressure 1MPa, flow rate 60L / s.

[0178] Dry powder flow rate: 6 kg / s.

[0179] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0180] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0181] The rectifier 5 has 6 rectifier ribs 52.

[0182] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0183] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0184] The parameters are the same as in Experiment Example 1, except that the length of DC section 12 is 4.2 cm.

[0185] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 72m, 45m, and 63m respectively.

[0186] Experimental Example 11

[0187] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0188] Liquid phase pressure 1MPa, flow rate 60L / s.

[0189] Dry powder flow rate: 6 kg / s.

[0190] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0191] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0192] The rectifier 5 has 6 rectifier ribs 52.

[0193] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0194] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0195] The parameters mentioned above are the same as in Experiment Example 1, except that the length of DC section 12 is 5cm.

[0196] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 70m, 45m, and 61m respectively.

[0197] Experimental Example Twelve

[0198] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0199] Liquid phase pressure 1MPa, flow rate 60L / s.

[0200] Dry powder flow rate: 6 kg / s.

[0201] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0202] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0203] The rectifier 5 has 6 rectifier ribs 52.

[0204] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0205] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0206] The parameters are the same as in Experiment 1, except that the length of DC section 12 is 5.4 cm.

[0207] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 68m, 45m, and 59m respectively.

[0208] Experimental Example Thirteen

[0209] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0210] Liquid phase pressure 1MPa, flow rate 60L / s.

[0211] Dry powder flow rate: 6 kg / s.

[0212] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0213] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0214] The rectifier 5 has 6 rectifier ribs 52.

[0215] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0216] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0217] The parameters are the same as in Experiment Example 1, except that the length of DC section 12 is 5.8 cm.

[0218] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 67m, 45m, and 58m respectively.

[0219] Experimental Example Fourteen

[0220] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0221] Liquid phase pressure 1MPa, flow rate 60L / s.

[0222] Dry powder flow rate: 6 kg / s.

[0223] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0224] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0225] The rectifier 5 has 6 rectifier ribs 52.

[0226] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0227] The length of the extension tube 41 beyond the front end of the DC section 12 is 92cm.

[0228] The parameters are the same as in Experiment Example 1, except that the length of DC section 12 is 6.2 cm.

[0229] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 66m, 45m, and 57m respectively.

[0230] Experimental Example 15

[0231] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0232] Liquid phase pressure 1MPa, flow rate 60L / s.

[0233] Dry powder flow rate: 6 kg / s.

[0234] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0235] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0236] The rectifier 5 has 6 rectifier ribs 52.

[0237] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0238] The length of DC section 12 is 4.6cm.

[0239] The parameters are the same as in Experiment Example 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 0 cm.

[0240] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 78m, 44m, and 50m respectively.

[0241] Experimental Example Sixteen

[0242] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0243] Liquid phase pressure 1MPa, flow rate 60L / s.

[0244] Dry powder flow rate: 6 kg / s.

[0245] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0246] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0247] The rectifier 5 has 6 rectifier ribs 52.

[0248] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0249] The length of DC section 12 is 4.6cm.

[0250] The parameters are the same as in Experiment 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 55.2 cm.

[0251] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 78m, 44.6m, and 56m respectively.

[0252] Experimental Example 17

[0253] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0254] Liquid phase pressure 1MPa, flow rate 60L / s.

[0255] Dry powder flow rate: 6 kg / s.

[0256] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0257] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0258] The rectifier 5 has 6 rectifier ribs 52.

[0259] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0260] The length of DC section 12 is 4.6cm.

[0261] The parameters are the same as in Experiment 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 64.4 cm.

[0262] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 78m, 44.7m, and 58m respectively.

[0263] Experimental Example 18

[0264] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0265] Liquid phase pressure 1MPa, flow rate 60L / s.

[0266] Dry powder flow rate: 6 kg / s.

[0267] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0268] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0269] The rectifier 5 has 6 rectifier ribs 52.

[0270] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0271] The length of DC section 12 is 4.6cm.

[0272] The parameters are the same as in Experiment 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 73.6 cm.

[0273] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 78m, 44.8m, and 62m respectively.

[0274] Experimental Example 19

[0275] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0276] Liquid phase pressure 1MPa, flow rate 60L / s.

[0277] Dry powder flow rate: 6 kg / s.

[0278] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0279] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0280] The rectifier 5 has 6 rectifier ribs 52.

[0281] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0282] The length of DC section 12 is 4.6cm.

[0283] The parameters are the same as in Experiment 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 82.8 cm.

[0284] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 78m, 44.9m, and 66.5m respectively.

[0285] Experiment Example 20

[0286] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0287] Liquid phase pressure 1MPa, flow rate 60L / s.

[0288] Dry powder flow rate: 6 kg / s.

[0289] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0290] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0291] The rectifier 5 has 6 rectifier ribs 52.

[0292] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0293] The length of DC section 12 is 4.6cm.

[0294] The parameters are the same as in Experiment Example 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 101.2 cm.

[0295] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 75m, 50.1m, and 67m respectively.

[0296] Experimental Example 21

[0297] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0298] Liquid phase pressure 1MPa, flow rate 60L / s.

[0299] Dry powder flow rate: 6 kg / s.

[0300] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0301] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0302] The rectifier 5 has 6 rectifier ribs 52.

[0303] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0304] The length of DC section 12 is 4.6cm.

[0305] The parameters are the same as in Experimental Example 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 110.4 cm.

[0306] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 74m, 50.2m, and 65.8m respectively.

[0307] Experiment Example 22

[0308] The multiphase media fire monitor 100 is used for spraying, and the parameters are designed as follows.

[0309] Liquid phase pressure 1MPa, flow rate 60L / s.

[0310] Dry powder flow rate: 6 kg / s.

[0311] The diameter of the inlet section 16 is 8cm, the diameter of the throat 14 is 6.4cm, the diameter of the guide core 22 is 1.3cm, the maximum diameter of the guide plate 21 is 9.2cm, and the diameter of the delivery pipe 4 is 1cm.

[0312] The angle between the contraction section 15 and the central axis is 30°, and the angle between the expansion section 11 and the central axis is 45°.

[0313] The rectifier 5 has 6 rectifier ribs 52.

[0314] The diameter of the guide plate 21 is at its maximum at the center of the expansion section 11.

[0315] The length of DC section 12 is 4.6cm.

[0316] The parameters are the same as in Experimental Example 1, except that the length of the extension tube 41 beyond the front end of the DC section 12 is 119.6 cm.

[0317] DC jet test, dry powder spray test, and DC / dry powder combined spray test were conducted respectively, with spray ranges of 73m, 50.3m, and 64.4m respectively.

[0318] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0319] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0320] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-phase medium fire monitor characterized by, include: outer cylinder(1); A flow guide (2) is coaxially disposed inside the outer cylinder (1), and the flow guide (2) and the outer cylinder (1) form an annular channel (3) that allows the first medium to pass through; An extension tube (41) for conveying a second medium is coaxially disposed on the guide member (2), the front end of the extension tube (41) extending to the confluence of the first medium.

2. The multi-phase medium fire monitor of claim 1, wherein, A conveying cavity (23) is provided inside the flow guide (2), and the rear end of the conveying cavity (23) is connected to the conveying pipe (4).

3. The multi-phase medium fire monitor of claim 2, wherein, A rectifier (5) is coaxially arranged inside the outer cylinder (1), and a conveying channel (51) is arranged inside the rectifier (5). The rectifier (5) is connected to the guide member (2). The extension pipe (41) passes through the conveying cavity (23) and connects to the conveying channel (51). The conveying pipe (4) communicates with the conveying channel (51) through the outer wall of the rectifier (5).

4. The multi-phase medium fire monitor of claim 3, wherein, The rectifier (5) includes: A fixing ring (53) is coaxially arranged inside the outer cylinder (1), and a circumferential channel (513) is provided inside the fixing ring (53). The conveying pipe (4) is connected to the circumferential channel (513). Multiple rectifier ribs (52) are evenly distributed in the fixed ring (53) in a radiating pattern along the circumference. A rib channel (511) communicating with the circumferential channel (513) is provided in the rectifier ribs (52). An axial channel (512) communicating with the conveying cavity (23) is provided at the convergence point of the multiple rib channels (511).

5. The multi-phase medium fire monitor of claim 4, wherein, The cross-sectional structure of the rectifier rib (52) is spindle-shaped.

6. The multi-phase medium fire monitor of any of claims 3-5, wherein, The outer cylinder (1) includes an expansion section (11) and a direct current section (12) coaxially disposed on the expansion section (11). The expansion section (11) is constructed in a shape with an inner diameter that gradually increases from back to front. The flow guide (2) includes a flow guide disk (21) disposed within the axial length range of the expansion section (11).

7. The multi-phase medium fire monitor of claim 6, wherein, The flow guide (2) also includes a flow guide core (22), the outer diameter of which is smaller than the outer diameter of the flow guide disk (21), and the two axial ends of the flow guide core (22) are coaxially connected to the flow guide disk (21) and the rectifier (5), respectively.

8. The multi-phase medium fire monitor of claim 6, wherein, The outer cylinder (1) also includes a throat (14) coaxially disposed at the rear end of the expansion section (11), and a contraction section (15) coaxially disposed at the rear end of the throat (14). The contraction section (15) is constructed in a shape with an inner diameter that gradually decreases from back to front, and a water inlet section (16) coaxially disposed at the rear end of the contraction section (15).

9. The multi-phase medium fire monitor of claim 8, wherein, The rectifier (5) is coaxially disposed within the water inlet section (16).

10. The multi-phase medium fire monitor of claim 6, wherein, The DC section (12) is connected to the expansion section (11) via a telescopic mechanism (6), which is configured to allow the DC section (12) to move axially relative to the expansion section (11).

11. The multi-phase medium fire monitor of claim 10, wherein, The telescopic mechanism (6) includes: A support section (61) is arranged along the axial direction, and the DC section (12) is movably connected to the support section (61); The driver (62) is mounted on the support section (61); and The telescopic rod (63) is connected to the DC section (12) via the driver (62), thereby driving the DC section (12) to move coaxially relative to the expansion section (11).

12. A method of fighting a multiphase medium fire, characterized in that Using the multiphase medium fire monitor according to any one of claims 1 to 11, a liquid phase is conveyed into the outer cylinder (1) from the rear end, and dry powder is conveyed into the outer cylinder (4) from the rear end, so that the liquid phase and dry powder are sprayed out from the front end of the multiphase medium fire monitor and converge at the same position, so that the dry powder jet is carried forward by the liquid phase jet.

13. A method of using a multi-phase medium fire monitor according to any one of claims 1-11, characterized in that, Multiphase media fire monitors are used in petrochemical fires.

Images