Sheet-shaped and conical spraying copper water gun for nuclear power fire fighting

Abstract

The utility model relates to the technical field of fire fighting equipment, and aims to solve the technical problem of single spraying mode. In order to solve the technical problem, the utility model provides the flaky and conical spraying copper water gun for nuclear power fire protection. The gun comprises a grab handle, a valve body and a gun head assembly. The valve body is connected with the water outlet end of the grab handle in a sealed mode. A ball valve of the valve body is provided with a first ball valve channel and a second ball valve channel. The gun head assembly is in sealing connection with the front end of the valve body. The gun head assembly comprises a gun head, a conical water outlet nozzle, a water retaining end, an outer cavity channel and an inner cavity channel. A circle of spraying teeth are arranged on the front end face of the spraying head; the front end face of the gun head is provided with a plurality of sheet-shaped spraying teeth in a mounting area, and the mounting area is rectangular. By rotating the ball valve, the water inlet channel is communicated with the inner cavity channel, the water inlet channel is communicated with the outer cavity channel, or the ball valve abuts against the water outlet end of the grab handle. According to the utility model, switching among a sheet-shaped spraying state, a conical spraying state and a closed state can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a flaky and conical spray copper water gun for nuclear power plant fire-fighting. Background Art

[0002] A fire-fighting water gun is a water jet tool for extinguishing fires. When connected to a water hose, it will spray a dense and substantial water flow. It has the advantages of long range, large water volume, and being convenient for personnel to carry and operate. According to different jet forms and characteristics, it can be divided into: straight stream water gun, spray water gun, straight stream spray water gun, multi-purpose water gun, etc. Among them, the commonly used water gun is the straight stream spray water gun, which can not only spray a columnar water flow but also switch to spray a conical misty water flow, and has the function of opening and closing the jet.

[0003] There are various corrosive media in the nuclear power plant environment, such as seawater, steam, acid-base solutions, etc. Therefore, the material of the fire-fighting water gun should have good corrosion resistance and be able to resist the erosion of these corrosive media. Copper alloy has the characteristic of strong corrosion resistance, which can improve the durability of the product.

[0004] When the fire-fighting water gun sprays a columnar water flow (direct current, solid cylindrical water flow), the jet velocity is fast, the water column is concentrated, and the penetration power is strong, which is easy to penetrate the flame and reach the interior of the fire source. However, due to the fast water flow velocity, concentrated water column, and large force, it is easy to cause the nuclear dust in the nuclear power plant to fly, leading to serious radiation problems. While the sprayed misty water flow (spray, hollow conical water flow) is atomized, the jet velocity is slower, the water column is dispersed, it will not blow away the nuclear dust, and it has a better wrapping effect on the flame, and the fire extinguishing effect is better.

[0005] Therefore, in the event of a fire in a nuclear power plant, the direct current mode cannot be used for the water gun, and only the spray mode can be used for fire extinguishing. However, the larger the spray angle, the larger the conical circular area and the shorter the range. An overly large spray angle will cause the water shape to be too dispersed and the fire extinguishing effect to be poor. Therefore, the size of the spray angle must be controlled.

[0006] The existing fire-fighting water guns for nuclear power plants have a single spray mode, most of the spray angles are not variable, and the range cannot be adjusted. Even for the fire-fighting spray water gun with adjustable spray angle, the range when adjusted to the smallest conical spray angle is still much smaller than the range in the direct current mode. The water flow does not form a clustering effect, and there is a risk of blowing away nuclear dust.

[0007] For fires in some special occasions, such as fires in the gaps between cabinets and the ground, and fires behind the unit shields, there will be defects such as the water column being sprayed in a conical spray, most of the water flow being blocked, and the fire extinguishing effect being unsatisfactory. Content of the Utility Model

[0008] Therefore, the technical problem to be solved by the present utility model is to overcome the above problems existing in the prior art.

[0009] To solve the above technical problems, the present utility model provides a flaky and conical spray copper water gun for nuclear power plant fire fighting, comprising:

[0010] A handle, including a water inlet channel and a water inlet end and a water outlet end provided at both ends of the water inlet channel;

[0011] A valve body, hermetically connected to the water outlet end of the handle. The valve body includes a valve main body and a ball valve rotatably connected in the valve main body. The ball valve is provided with a first ball valve channel and a second ball valve channel;

[0012] A gun head assembly, hermetically connected to the front end of the valve body; the gun head assembly includes a gun head, a conical water outlet nozzle coaxially arranged in the gun head, a water blocking end coaxially arranged at the front end of the conical water outlet nozzle, an outer chamber channel arranged between the gun head and the conical water outlet nozzle, and an inner chamber channel arranged in the conical water outlet nozzle; the conical water outlet nozzle includes a water outlet nozzle body and a conical spray head arranged at the front end of the water outlet nozzle body. A circle of spray teeth is arranged on the front end face of the spray head; the rear end face of the water blocking end is conical, and the conical rear end face of the water blocking end is arranged opposite to the inner wall of the spray head; the gun head includes a gun head main body and a conical head arranged at the front end of the gun head main body. A plurality of flaky spray teeth are arranged on the front end face of the head in the installation area, and the installation area is rectangular; the inner wall of the head is arranged opposite to the outer wall of the spray head;

[0013] Wherein, by rotating the ball valve, the water inlet channel is communicated with the inner chamber channel, the water inlet channel is communicated with the outer chamber channel, or the ball valve abuts against the water outlet end of the handle.

[0014] In an embodiment of the present utility model, the ball valve includes a spherical circumferential surface hermetically connected to the inner chamber channel and the water outlet end of the handle; the first ball valve channel is arranged in the spherical circumferential surface along the X direction, the second ball valve channel is arranged in the spherical circumferential surface along the Y direction, and the X direction intersects with the Y direction; a first inlet, a second inlet and a first outlet are arranged at intervals along the circumferential direction of the spherical circumferential surface; both ends of the first ball valve channel are communicated with the first inlet and the first outlet, and the second ball valve channel is communicated with the second inlet.

[0015] In an embodiment of the present utility model, the ball valve further includes a connecting plate arranged in the spherical circumferential surface, and the connecting plate is arranged perpendicular to the Y direction; a communication hole is arranged on the connecting plate, and the communication hole is communicated with the second ball valve channel.

[0016] In an embodiment of the present utility model, the present application further includes a fixing ring, and the gun head assembly is hermetically connected to the valve body through the fixing ring; a through hole communicated with the inner chamber channel is arranged on the fixing ring.

[0017] In an embodiment of the present utility model, the gun head assembly further includes a pull rod, and both ends of the pull rod are respectively connected to the water blocking end and the fixing ring.

[0018] In an embodiment of the present utility model, the ball valve is hermetically connected to the valve body through a ball valve gasket.

[0019] In an embodiment of the present utility model, the valve body further includes two ball valve pins, and both ends of the valve body are rotatably connected to the valve body through the ball valve pins respectively.

[0020] In an embodiment of the present utility model, the valve body further includes a U-shaped handle, and both ends of the handle are respectively connected to the ball valve pins.

[0021] In an embodiment of the present utility model, the water inlet channel is conical; in the water inlet channel, the caliber near the water inlet end is larger than that near the water outlet end.

[0022] In an embodiment of the present utility model, a KN40 water inlet interface is provided at the water inlet end of the handle.

[0023] The above technical solutions of the present utility model have the following advantages compared with the prior art:

[0024] For the sheet-shaped and conical spray copper water gun for nuclear power plant fire fighting of the present utility model, a plurality of sheet-shaped spray teeth are arranged at the head of the gun head, and the plurality of sheet-shaped spray teeth are arranged in a rectangular installation area, so that the water flow coming out of the outer chamber channel can form a rectangular sheet-shaped spray effect. Compared with the conical spray, it forms a beam effect of the water flow and has a longer range; for extinguishing fires in narrow spaces, the jet is more effectively concentrated. In addition, since the outer chamber channel of the present application is sleeved outside the inner chamber channel, the sheet-shaped spray is hollow and does not generate the impact force like a solid water column, effectively avoiding the problem of nuclear dust splashing. In addition, in this embodiment, by rotating the ball valve, the switching between the sheet-shaped spray state, the conical spray state and the closed state can be realized. When needed, it can be switched to the conical spray mode to perform a wrapped spraying extinguishing on the fire source. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the drawings, wherein:

[0026] Figure 1 is a three-dimensional schematic diagram of a sheet-shaped and conical spray copper water gun for nuclear power plant fire fighting in a preferred embodiment of the present utility model;

[0027] Figure 2 is Figure 1 the front schematic diagram of the sheet-shaped and conical spray copper water gun for nuclear power plant fire fighting;

[0028] Figure 3 is Figure 2 the C-C cross-sectional view of;

[0029] Figure 4 is Figure 1 The top view of the flaky and conical spray copper water gun for nuclear power plant fire fighting;

[0030] Figure 5 is Figure 4 The B - B cross - sectional view of;

[0031] Figure 6 is Figure 1 The side view of;

[0032] Figure 7 is Figure 1 The structural schematic diagram of the ball valve in the flaky and conical spray copper water gun for nuclear power plant fire fighting of;

[0033] Explanation of the reference signs in the drawings of the specification: 100, handle; 110, water inlet channel; 120, water inlet end; 130, water outlet end;

[0034] 200, valve body; 210, valve body main body; 220, ball valve; 221, first ball valve channel; 222, second ball valve channel; 230, spherical circumferential surface; 231, first inlet; 232, second inlet; 233, first outlet; 234, connecting plate; 235, communication hole; 240, ball valve gasket; 250, ball valve pin; 260, handle; 261, pin; 270, arc chute; 271, clamping groove; 280, mark; 290, rotation direction;

[0035] 300, gun head assembly; 310, gun head; 311, gun head main body; 312, head; 313, installation area; 314, flaky spray teeth; 320, conical water outlet nozzle; 321, water outlet nozzle main body; 322, spray head; 323, spray teeth; 330, water blocking end head; 340, outer chamber channel; 350, inner chamber channel; 360, pull rod;

[0036] 400, fixing ring. Detailed implementation manners

[0037] The following further explains the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the exemplified embodiments do not limit the present utility model.

[0038] Referring to Figures 1 to 7 , as shown, the embodiment of the present utility model provides a flaky and conical spray copper water gun for nuclear power plant fire fighting, comprising:

[0039] A handle 100, comprising a water inlet channel 110 and a water inlet end 120 and a water outlet end 130 provided at both ends of the water inlet channel 110;

[0040] The valve body 200 is hermetically connected to the water outlet end 130 of the handle 100. The valve body 200 includes a valve body main body 210 and a ball valve 220 rotatably connected in the valve body main body 210. The ball valve 220 is provided with a first ball valve channel 221 and a second ball valve channel 222;

[0041] The gun head assembly 300 is hermetically connected to the front end of the valve body 200. The front end is the water outlet end, and the end is the water inlet end. The gun head assembly 300 includes a gun head 310, a conical water outlet nozzle 320 coaxially arranged in the gun head 310, a water blocking end head 330 coaxially arranged at the front end of the conical water outlet nozzle 320, an outer chamber channel 340 arranged between the gun head 310 and the conical water outlet nozzle 320, and an inner chamber channel 350 arranged in the conical water outlet nozzle 320. The conical water outlet nozzle 320 includes a water outlet nozzle body 321 and a conical spray head 322 arranged at the front end of the water outlet nozzle body 321. A circle of spray teeth 323 is arranged on the front end face of the spray head 322. The rear end face of the water blocking end head 330 is conical, and the conical rear end face of the water blocking end head 330 is arranged opposite to the inner wall of the spray head 322; thus, the front end of the inner chamber channel 350 is conical. The gun head 310 includes a gun head main body 311 and a conical head 312 arranged at the front end of the gun head main body 311. A plurality of sheet-like spray teeth 314 are arranged on the front end face of the head 312 in the installation area 313. The plurality of sheet-like spray teeth 314 are arranged at intervals in the circumferential direction, and the installation area 313 is rectangular; the inner wall of the head 312 is arranged opposite to the outer wall of the spray head 322; thus, the front end of the outer chamber channel 340 is conical.

[0042] Wherein, by rotating the ball valve 220, the water inlet channel 110 is communicated with the inner chamber channel 350 (i.e., the conical spray state. In this state, the water inlet channel 110 is communicated with the inner chamber channel 350 through the first ball valve channel 221.), the water inlet channel 110 is communicated with the outer chamber channel 340 (i.e., the sheet-like spray state. In this state, the water inlet channel 110 is communicated with the outer chamber channel 340 through the second ball valve channel 222.), or the ball valve 220 abuts against the water outlet end 130 of the handle 100 (i.e., the closed state).

[0043] Specifically, in this embodiment, a plurality of sheet-shaped spray teeth 314 are provided at the head 312 of the gun head 310, and the plurality of sheet-shaped spray teeth 314 are arranged within a rectangular installation area 313, so that the water flow coming out of the outer chamber channel 340 can form a rectangular sheet-shaped spray effect. Compared with the conical spray, it forms a clustering effect of the water flow and has a longer range; for extinguishing fires in narrow spaces, the jet flow is more effectively concentrated. In addition, since the outer chamber channel 340 of the present application is sleeved outside the inner chamber channel 350, the sheet-shaped spray is hollow and does not generate the impact force like a solid water column, effectively avoiding the problem of nuclear dust splashing. In addition, in this embodiment, by rotating the ball valve 220, the switching between the sheet-shaped spray state, the conical spray state, and the closed state can be achieved. When needed, it can be switched to the conical spray mode to perform a wrapped jet extinguishing on the fire source.

[0044] Further, the ball valve 220 includes a spherical circumferential surface 230 that is hermetically connected to the inner chamber channel 350 and the water outlet end 130 of the handle 100; the spherical circumferential surface 230 is hermetically connected to the inner chamber channel 350 and the water outlet end 130 of the handle 100 through ball valve gaskets 240 respectively. A first ball valve channel 221 is arranged in the spherical circumferential surface 230 along the X direction, and a second ball valve channel 222 is arranged in the spherical circumferential surface 230 along the Y direction. The X direction is the axis direction of the present application, and the X direction intersects with the Y direction. For example, the two are perpendicular. Along the circumferential direction of the spherical circumferential surface 230, a first inlet 231, a second inlet 232, and a first outlet 233 are provided at intervals; both ends of the first ball valve channel 221 are communicated with the first inlet 231 and the first outlet 233, and the second ball valve channel 222 is communicated with the second inlet 232. The first ball valve channel 221 is arranged along the diameter direction of the ball valve 220. Specifically, in this embodiment, by rotating the ball valve 220, the first inlet 231 on the ball valve 220 is communicated with the water inlet channel 110, so as to open the conical spray state. By rotating the ball valve 220, the second inlet 232 on the ball valve 220 is communicated with the water inlet channel 110, so as to open the sheet-shaped spray state. By rotating the ball valve 220, the spherical circumferential surface 230 abuts against the water outlet end 130 to disconnect the communication between the water inlet channel 110 and the gun head assembly 300, so as to open the closed state. It can be seen that the adjustment of the three states can be realized by rotating the ball valve 220, and the adjustment is convenient and fast. In some embodiments, the ball valve 220 is made of plastic.

[0045] Further, the ball valve 220 further includes a connecting plate 234 arranged in the spherical circumferential surface 230, and the connecting plate 234 is arranged perpendicular to the Y direction; a communication hole 235 is provided on the connecting plate 234, and the communication hole 235 is communicated with the second ball valve channel 222. Specifically, the connecting plate 234 in this embodiment makes the structure of the ball valve 220 more stable and reliable.

[0046] Further, the present application further includes a fixing ring 400, and the gun head assembly 300 is hermetically connected to the valve body 200 through the fixing ring 400; the fixing ring 400 is provided with a through hole communicating with the inner cavity channel 350, and the inner cavity channel 350 passes through the through hole and enters the gun head assembly 300. Specifically, the fixing ring 400 in this embodiment makes the connection between the gun head assembly 300 and the valve body 200 more reliable.

[0047] Further, the gun head assembly 300 further includes a pull rod 360, and both ends of the pull rod 360 are respectively connected to the water blocking end 330 and the fixing ring 400. Specifically, the pull rod 360 provided in this embodiment realizes the limit fixation of the water blocking end 330.

[0048] Further, the ball valve 220 is hermetically connected to the valve body 210 through a ball valve gasket 240. In the case where the present embodiment further includes a fixing ring 400, the end of the ball valve 220 is hermetically connected to the valve body 210 through a ball valve gasket 240, and the front end of the ball valve 220 is hermetically connected to the fixing ring 400 through a ball valve gasket 240. Specifically, the ball valve gasket 240 provided in this embodiment makes the ball valve 220 hermetically sealed with the valve body 200, the fixing ring 400, and the gun head assembly 300.

[0049] Further, the valve body 200 further includes two ball valve pins 250, and both ends of the valve body 210 are respectively rotatably connected to the valve body 210 through the ball valve pins 250.

[0050] Further, the valve body 200 further includes a U-shaped handle 260, and both ends of the handle 260 are respectively connected to the ball valve pins 250. The handle 260 is made of aluminum alloy. Specifically, in this embodiment, the switching of three states is realized by operating the handle 260, and the operation is convenient and fast.

[0051] Further, two arc-shaped chutes 270 are provided on the outer wall of the valve body 200, and the arc-shaped chutes 270 correspond to the ends of the handle 260 one by one; three card slots 271 are provided in the arc-shaped chutes 270, and a pin 261 is provided on the handle 260; the handle 260 rotates to make the pin 261 snap into one of the three card slots 271. The three card slots 271 respectively correspond to three states, and through the snap connection of the pin 261 and the card slot 271, the operator can quickly and clearly know the position of the corresponding state, and the operation is more convenient.

[0052] Further, the valve body 200 is provided with an identification 280 of the corresponding state and a rotation direction 290. For example, the middle position is the flaky spray state, rotating backward is the conical spray state, and rotating forward is the closed state. It is more convenient for the operator to identify the state.

[0053] Further, the water inlet channel 110 is conical; in the water inlet channel 110, the diameter near the water inlet end 120 is larger than that near the water outlet end 130. Specifically, the conical water inlet channel 110 provided in this embodiment can reduce the pressure loss.

[0054] Further, a KN40 water inlet interface 140 is provided at the water inlet end 120 of the handle 100. Specifically, the setting of the KN40 water inlet interface 140 facilitates the quick docking of the fire hose.

[0055] When this application is in use, connect the fire hose to the water inlet end 120 of the handle 100, and the handle 260 can be toggled to the position gear corresponding to different states according to the fire scene in use (that is, when a conical spray is required, the gear is adjusted to the conical spray state gear. At this time, the water flow enters the inner cavity channel 350 of the gun head assembly 300 through the water inlet channel 110 and the first ball valve channel 221 of the ball valve 220, thereby spraying a conical spray.)

[0056] When a sheet-like spray is required, the gear is adjusted to the sheet-like spray state gear, and it enters the outer cavity channel 340 of the gun head assembly 300 through the water inlet channel 110 and the second ball valve channel 222 of the ball valve 220, forming a rectangular sheet-like water mist.

[0057] When it needs to be closed, the gear is adjusted to the closed state gear, and the ball valve 220 disconnects the connection between the water inlet channel 110 and the gun head assembly 300.

[0058] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of this utility model creation.

Claims

1. A flaky and conical spray copper water gun for nuclear power plant fire protection, characterized in that: Comprising: A handle, including a water inlet channel and a water inlet end and a water outlet end provided at both ends of the water inlet channel; A valve body, sealingly connected to the water outlet end of the handle. The valve body includes a valve main body and a ball valve rotatably connected in the valve main body. The ball valve is provided with a first ball valve channel and a second ball valve channel; A gun head assembly, sealingly connected to the front end of the valve body; the gun head assembly includes a gun head, a conical water outlet nozzle coaxially arranged in the gun head, a water blocking end coaxially arranged at the front end of the conical water outlet nozzle, an outer chamber channel provided between the gun head and the conical water outlet nozzle, and an inner chamber channel provided in the conical water outlet nozzle; the conical water outlet nozzle includes a water outlet nozzle body and a conical spray head provided at the front end of the water outlet nozzle body. A circle of spray teeth is provided on the front end face of the spray head; the rear end face of the water blocking end is conical, and the conical rear end face of the water blocking end is arranged opposite to the inner wall of the spray head; the gun head includes a gun head main body and a conical head provided at the front end of the gun head main body. A plurality of sheet-like spray teeth are provided on the front end face of the head in the installation area, and the installation area is rectangular; the inner wall of the head is arranged opposite to the outer wall of the spray head; Wherein, by rotating the ball valve, the water inlet channel is communicated with the inner chamber channel, the water inlet channel is communicated with the outer chamber channel, or the ball valve abuts against the water outlet end of the handle.

2. The sheet-shaped and conical spray copper water gun for nuclear power plant fire protection according to claim 1, wherein: The ball valve includes a spherical circumferential surface sealingly connected to the inner chamber channel and the water outlet end of the handle; the first ball valve channel is arranged in the spherical circumferential surface along the X direction, the first ball valve channel is arranged in the spherical circumferential surface along the Y direction, and the X direction intersects with the Y direction; a first inlet, a second inlet, and a first outlet are provided at intervals along the circumferential direction of the spherical circumferential surface; both ends of the first ball valve channel are communicated with the first inlet and the first outlet, and the second ball valve channel is communicated with the second inlet.

3. The sheet-shaped and conical spray copper water gun for nuclear power plant fire fighting according to claim 2, characterized in that: The ball valve further includes a connecting plate arranged in the spherical circumferential surface, and the connecting plate is perpendicular to the Y direction; a communication hole is provided on the connecting plate, and the communication hole is communicated with the second ball valve channel.

4. The sheet-shaped and conical spray copper water gun for nuclear power plant fire fighting according to claim 1, characterized in that: It further includes a fixing ring, and the gun head assembly is sealingly connected to the valve body through the fixing ring; a through hole communicated with the inner chamber channel is provided on the fixing ring.

5. The sheet-shaped and conical spray copper water gun for nuclear power plant fire fighting according to claim 4, characterized in that: The gun head assembly further includes a pull rod, and both ends of the pull rod are respectively connected to the water blocking end and the fixing ring.

6. The sheet-shaped and conical spray copper water gun for nuclear power plant fire protection according to claim 1, characterized in that: The ball valve is sealingly connected to the valve main body through a ball valve gasket.

7. The sheet-shaped and conical spray copper water gun for nuclear power plant fire protection according to claim 1, wherein: The valve body further includes two ball valve pins, and both ends of the valve main body are respectively rotatably connected to the valve main body through the ball valve pins.

8. The sheet-shaped and conical spray copper water gun for nuclear power plant fire fighting according to claim 7, characterized in that: The valve body further includes a U-shaped handle, and both ends of the handle are respectively connected to the ball valve pins.

9. The sheet-shaped and conical spray copper water gun for nuclear power plant fire protection according to claim 1, characterized in that: The water inlet channel is conical; in the water inlet channel, the caliber near the water inlet end is larger than the caliber near the water outlet end.

10. The sheet-shaped and conical spray copper water gun for nuclear power plant fire protection according to claim 1, wherein: The water inlet end of the handle is provided with a KN40 water inlet interface.

Images