A decompression device for a decommissioned dry chemical fire extinguisher

Abstract

The application discloses a kind of decompression devices of scrap dry powder fire extinguisher.It includes: first support;Fire extinguisher transport case, which is provided on the first support, a plurality of mounting slots are provided on the fire extinguisher transport case, and a fixing belt is provided at each mounting slot;Suspension, which is provided directly above the first support;Down mechanism, which is provided on the suspension, is used to sequentially press the handle of fire extinguisher in the fire extinguisher transport case;Pool body, which is provided in front of the first support, a plurality of exhaust pipes are provided in the pool body, and the pool body is used to contain pool water;Air pipe, the upper end of which is connected with the fan provided on the suspension, the middle part of the air pipe is provided with a connecting pipe, the free end of the connecting pipe is detachably connected with the nozzle of the fire extinguisher, and the lower end of the air pipe is connected with the exhaust pipe.The beneficial effects of the present application are: dry powder of dry powder fire extinguisher can be introduced into the pool body containing pool water, which can not only release the pressure of the fire extinguisher, but also will not pollute the environment.

Description

Technical Field

[0001] This invention relates to the field of dry powder fire extinguisher technology, and in particular to a pressure relief device for a discarded dry powder fire extinguisher. Background Technology

[0002] Offshore oil and gas platforms are equipped with a large number of dry powder fire extinguishers for fire prevention. Once these extinguishers expire, safely transporting them back to land becomes a challenge for on-site safety management personnel. Pressurized dry powder fire extinguisher cylinders are classified as hazardous materials, and there are no dedicated hoisting and transport vehicles for them at offshore sites, posing a risk of accidental release or explosion due to impact. On-site safety management personnel often manually depressurize the cylinders before hoisting and transporting them, but this process carries environmental pollution and personnel operational risks. Summary of the Invention

[0003] The purpose of this invention is to provide a pressure relief device for discarded dry powder fire extinguishers, which can introduce the dry powder of the fire extinguisher into a pool filled with water, thereby relieving the pressure of the fire extinguisher without polluting the environment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution, including:

[0005] First support;

[0006] A fire extinguisher transport box is mounted on the first bracket. The fire extinguisher transport box is provided with multiple mounting slots for accommodating fire extinguishers. Each mounting slot is provided with a fixing strap for securing the fire extinguisher. The fire extinguisher transport box is used to hold and secure fire extinguishers.

[0007] The suspension is positioned directly above the first support;

[0008] A pressing mechanism, mounted on the suspension, is used to sequentially press down the handles of the fire extinguishers inside the fire extinguisher transport box; and

[0009] The pool body is located in front of the first support, and multiple sets of exhaust pipes are provided inside the pool body for holding pool water;

[0010] The air pipe has its upper end connected to a fan mounted on a suspension. A connecting pipe is provided in the middle of the air pipe. The free end of the connecting pipe is detachably connected to the nozzle of the fire extinguisher. The lower end of the air pipe is connected to an exhaust pipe for introducing the dry powder sprayed from the fire extinguisher into the pool and then discharging it.

[0011] Preferably, it also includes:

[0012] The first transmission mechanism, which is disposed at the upper end of the first support, is used to transmit the fire extinguisher transport box;

[0013] The first transmission mechanism includes;

[0014] Multiple first drive rollers are horizontally arranged and rotatably mounted on the upper end of the first support;

[0015] Multiple first transmission wheels are respectively disposed at both ends of the first transmission roller, and adjacent first transmission wheels mesh with each other;

[0016] The first drive motor has its output shaft keyed to the first drive wheel located at the starting end, and is used to output rotational power.

[0017] Preferably, the pressing mechanism includes:

[0018] A lead screw, which is rotatably mounted laterally on the suspension;

[0019] A fixing block is sleeved on the lead screw, and an axial center hole is provided on the fixing block. An internal thread matching the lead screw is provided in the center hole.

[0020] A position adjustment motor, whose output shaft is connected to the lead screw via a spline, is used to drive the lead screw to rotate and adjust the position of the fixed block on the lead screw; and

[0021] A downward-pressing cylinder is vertically downward-facing. The upper end of the downward-pressing cylinder is connected to the lower end face of the fixing block. An elastic pressure block is provided at the lower end of the piston rod of the downward-pressing cylinder for pressing down the fire extinguisher handle.

[0022] Preferably, it also includes:

[0023] A pair of shaping plates are arranged above the first support along the length of the first support, for adjusting the position of the fire extinguisher transport box on the first support so that the fire extinguisher transport box is located directly below the pressing mechanism.

[0024] Preferably, it also includes:

[0025] A shaking and mixing device is installed on one side of the starting end of the first support, which is used to drive the fire extinguisher transport box to shake up and down to mix the dry powder in the fire extinguisher.

[0026] The shaking and mixing device includes:

[0027] The second bracket is set on one side of the starting end of the first bracket. A horizontal support plate is provided at the upper end of the second bracket. Through holes are provided at the four corners of the horizontal support plate, and an opening is provided at the center of the horizontal support plate.

[0028] A support frame is provided above the second bracket. Support columns extending downward are provided at the four corners of the support frame. The support columns pass through the through holes respectively. A column is provided at the center of the support frame. The column passes through the opening.

[0029] Four compression springs are respectively sleeved on the support column, and the upper end face of each compression spring abuts against the support frame and the horizontal support plate.

[0030] A vibration motor is disposed below the horizontal support plate, and a cam is provided on the motor output shaft, the cam being located directly below the opening;

[0031] A rotating wheel, located at the lower end of the column and in contact with the outer edge of the cam, is used to vibrate up and down under the drive of the cam.

[0032] Preferably, it also includes:

[0033] A clamping device is disposed above the vibrating and shaking device for clamping the fire extinguisher transport box;

[0034] The clamping device includes;

[0035] A pair of vertical plates are disposed opposite to each other at the front and rear edges of the support frame;

[0036] A pair of clamping cylinders are arranged opposite to each other, and the base of the clamping cylinders is fixed to the vertical plate;

[0037] A pair of clamping plates are arranged opposite to each other and connected to the piston rod of the clamping cylinder for clamping the fire extinguisher transport box under the action of the clamping cylinder.

[0038] Preferably, it also includes:

[0039] The second transmission device is located on the upper end face of the vibrating and shaking device and is used to transport the fire extinguisher transport box.

[0040] The second transmission device includes;

[0041] Multiple second drive rollers are horizontally arranged and rotatably mounted on the upper end of the support frame;

[0042] Multiple second transmission wheels are respectively disposed at both ends of the second transmission roller, and adjacent second transmission wheels mesh with each other;

[0043] The second drive motor has its output shaft keyed to the second drive wheel located at the starting end, and is used to output rotational power.

[0044] Preferably, the lower part of the pool body is in the shape of a gradually narrowing funnel, and a drain outlet is provided at the bottom of the pool body.

[0045] Preferably, a filter screen for filtering dry powder is provided in the middle of the pool body.

[0046] Preferably, a ramp is provided on one end of the first support for the fire extinguisher transport box to slide down, a horizontal surface is connected to the end of the ramp, and a buffer rubber block is provided at the end of the horizontal surface.

[0047] The beneficial effects of this invention are: it can introduce the dry powder of the dry powder fire extinguisher into a pool filled with water, which can both depressurize the fire extinguisher and prevent environmental pollution; it is equipped with a shaking and mixing device, which can shake the dry powder in the fire extinguisher before depressurization, so that all the dry powder can be discharged when depressurization occurs. Attached Figure Description

[0048] Figure 1 This is a perspective view of an invention for a pressure relief device for discarded dry powder fire extinguishers.

[0049] Figure 2 This is a three-dimensional view of the first support structure in the invention.

[0050] Figure 3 This is a three-dimensional view of the fire extinguisher transport box in the invention.

[0051] Figure 4 This is a three-dimensional view of the shaking and mixing device in the invention. Detailed Implementation

[0052] The invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0053] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0054] like Figure 1-4 As shown, in one implementation of the present invention, to achieve the above objectives, the present invention adopts the following technical solution, including:

[0055] The first support 110 is a frame structure made of metal. Preferably, it further includes a first transmission mechanism 150. The first transmission mechanism 150 is disposed at the upper end of the first support 110 and is used to transmit the fire extinguisher transport box 120. The first transmission mechanism 150 includes: a plurality of first drive rollers 151 horizontally arranged and rotatably mounted on the upper end of the first support; a plurality of first drive wheels 152 respectively disposed at both ends of the first drive rollers 151, with adjacent first drive wheels 152 meshing; and the output shaft of a first drive motor 153 keyed to the first drive wheel 152 located at the starting end for outputting rotational power. Preferably, first support shafts extending outward are provided at both ends of the first drive wheels 152, and shaft holes for inserting the support shafts are provided at the upper end of the first support 110, for enabling the first drive rollers 151 to be rotatably mounted on the first support 110.

[0056] The fire extinguisher transport box 120 is mounted on the first bracket 110. The fire extinguisher transport box 120 is provided with a plurality of mounting slots 121 for accommodating fire extinguishers. Each mounting slot is provided with a fixing strap 122 for fixing the fire extinguisher. The fire extinguisher transport box 120 is used to hold and fix the fire extinguisher.

[0057] The suspension 111 is a frame structure made of metal material and is positioned directly above the first bracket 110.

[0058] A pressing mechanism 130 is mounted on the suspension 111 and is used to press down the fire extinguisher handles in the fire extinguisher transport box sequentially. Preferably, the pressing mechanism 130 includes: a lead screw 131 rotatably mounted laterally on the suspension 111; a fixing block 132 sleeved on the lead screw 131, with an axial central hole in the fixing block 132 containing an internal thread matching the lead screw 131; an output shaft of a position adjusting motor 133 connected to the lead screw 131 via a spline, used to rotate the lead screw 131 to adjust the position of the fixing block 132 on the lead screw 131; and a pressing cylinder 134 vertically downwards, the upper end of the pressing cylinder 134 connected to the lower end face of the fixing block 132, with an elastic pressure block 135 at the lower end of the piston rod of the pressing cylinder 134 for pressing down the fire extinguisher handle.

[0059] A pool body 140 is positioned in front of the first support 110. Multiple sets of exhaust pipes 141 are installed within the pool body to hold pool water. The upper end of an air pipe 142 is connected to a fan 143 mounted on a suspension frame. A connecting pipe 144 is located in the middle of the air pipe 142, and the free end of the connecting pipe 144 is detachably connected to the nozzle of a fire extinguisher. The lower end of the air pipe 142 is connected to the exhaust pipes 141 to guide the dry powder sprayed from the fire extinguisher into the pool body 140 and then discharge it. Preferably, the exhaust pipes 141 are evenly distributed with microporous structures for discharging the dry powder.

[0060] During use, first place the fire extinguisher into the mounting slot 121 of the fire extinguisher transport box 120, and then secure the fire extinguisher with the fixing strap 122. Next, place the fire extinguisher transport box 120 on the first bracket 110 so that it is below the pressing mechanism 130. Then, connect the connecting pipe 144 to the nozzle of the fire extinguisher, turn on the blower 143, and then turn on the pressing mechanism 130 so that the pressing cylinder 134 is directly above the fire extinguisher. The pressing cylinder 134 drives the elastic pressure block 135 to press down the fire extinguisher handle, and the dry powder of the fire extinguisher is sprayed out from the exhaust pipe 141 into the pool water.

[0061] In another embodiment, the system further includes: a first transmission mechanism 150 disposed at the upper end of the first support 110 for transmitting the fire extinguisher transport box. Preferably, the first transmission mechanism 150 includes: a plurality of first transmission rollers 151 horizontally arranged and rotatably mounted on the upper end of the first support; a plurality of first transmission wheels 152 respectively disposed at both ends of the first transmission rollers 151, with adjacent first transmission wheels 152 meshing with each other; and an output shaft of a first transmission motor 153 keyed to the first transmission wheel 152 located at the starting end for outputting rotational power. More preferably, first support shafts extending outwards are provided at both ends of the first transmission wheels 152, and shaft holes for inserting the support shafts are provided at the upper end of the first support 110, enabling the first transmission rollers 151 to be rotatably mounted on the first support 110.

[0062] In another embodiment, the pressing mechanism 130 includes: a lead screw 131 rotatably mounted laterally on the suspension 111; a fixing block 132 sleeved on the lead screw 131, the fixing block 132 having an axial central hole, the central hole having an internal thread matching the lead screw 131; the output shaft of a position adjusting motor 133 connected to the lead screw 131 via a spline, for driving the lead screw 131 to rotate and adjust the position of the fixing block 132 on the lead screw 131; and a pressing cylinder 134 vertically downwardly mounted, the upper end of the pressing cylinder 134 connected to the lower end face of the fixing block 132, and an elastic pressure block 135 at the lower end of the piston rod of the pressing cylinder 134 for pressing down the fire extinguisher handle.

[0063] In another embodiment, it further includes: a pair of shaping plates 112 disposed above the first support 110 along the length direction of the first support 110, for adjusting the position of the fire extinguisher transport box on the first support 110 so that the fire extinguisher transport box is located directly below the pressing mechanism.

[0064] In another embodiment, it further includes: a shaking and mixing device 160, which is disposed on one side of the starting end of the first support 110, for driving the fire extinguisher transport box 120 to shake up and down, and to mix the dry powder in the fire extinguisher. The shaking and mixing device includes: a second support 161, which is disposed on one side of the starting end of the first support 110, with a horizontal support plate 161a at the upper end of the second support 161, through holes at the four corners of the horizontal support plate, and an opening at the center of the horizontal support plate; a support frame 162 disposed above the second support 161, with downwardly extending support columns 162a at the four corners of the support frame 162, the support columns passing through the through holes respectively, and a vertical column 162b at the center of the support frame, the vertical column passing through the through holes. An opening is provided; four compression springs 163 are respectively sleeved on the support column 162a, the upper end face of the compression springs 163 abuts against the support frame 162, and the upper end face of the compression springs 163 abuts against the horizontal support plate 161a; a vibration motor 164 is provided below the horizontal support plate, and a cam 165 is provided on the output shaft of the motor, the cam being located directly below the opening; a rotating wheel 166 is provided at the lower end of the column 162b and keeps in contact with the outer edge of the cam, for vibrating up and down under the drive of the cam.

[0065] In another embodiment, the device further includes a clamping device 170 disposed above the vibrating and shaking device 160 for clamping the fire extinguisher transport box 120. The clamping device 170 includes: a pair of vertical plates 171 disposed opposite to each other on the front and rear edges of the support frame 162; a pair of clamping cylinders 172 disposed opposite to each other, the base of the clamping cylinders 172 being fixed to the vertical plates 171; and a pair of clamping plates 173 disposed opposite to each other and connected to the piston rod of the clamping cylinders 172 for clamping the fire extinguisher transport box 120 under the action of the clamping cylinders.

[0066] In another embodiment, it further includes: a second transmission device 180 disposed on the upper end face of the oscillating and shaking device 160 for transmitting the fire extinguisher transport box 120; the second transmission device includes: a plurality of second transmission rollers 181 horizontally arranged and rotatably mounted on the upper end of the support frame 162; a plurality of second transmission wheels 182 respectively disposed at both ends of the second transmission rollers 181, with adjacent second transmission wheels 182 meshing with each other; the output shaft of the second transmission motor 183 is keyed to the second transmission wheel 182 located at the starting end for outputting rotational power.

[0067] In another embodiment, the lower part of the pool body 140 is in the shape of a gradually narrowing funnel, and a drain outlet is provided at the bottom of the pool body.

[0068] In another embodiment, a filter screen for filtering dry powder is provided in the middle of the pool body 140.

[0069] In another embodiment, a ramp 191 for the fire extinguisher transport box to slide down is provided on one side of the end of the first support 110, a horizontal surface 192 is connected to the end of the ramp 191, and a buffer rubber block 193 is provided at the end of the horizontal surface.

[0070] In summary, the present invention provides a pressure relief device 1 for a discarded dry powder fire extinguisher, which can introduce the dry powder of the dry powder fire extinguisher into a pool containing water, thereby relieving the pressure of the fire extinguisher without polluting the environment; it is equipped with a shaking and mixing device, which can shake the dry powder in the fire extinguisher before pressure relief, so that all the dry powder can be discharged during pressure relief.

[0071] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A pressure relief device for a discarded dry powder fire extinguisher, characterized in that, include: First support; A fire extinguisher transport box is mounted on the first bracket. The fire extinguisher transport box is provided with multiple mounting slots for accommodating fire extinguishers. Each mounting slot is provided with a fixing strap for securing the fire extinguisher. The fire extinguisher transport box is used to hold and secure fire extinguishers. The suspension is positioned directly above the first support; A pressing mechanism, which is mounted on the suspension, is used to press down the handles of the fire extinguishers in the fire extinguisher transport box in sequence; as well as The pool body is located in front of the first support, and multiple sets of exhaust pipes are provided inside the pool body for holding pool water; The air pipe has its upper end connected to a fan mounted on a suspension. A connecting pipe is provided in the middle of the air pipe. The free end of the connecting pipe is detachably connected to the nozzle of the fire extinguisher. The lower end of the air pipe is connected to an exhaust pipe for introducing the dry powder sprayed by the fire extinguisher into the pool and then discharging it. The fixing strap consists of a fixing structure and a pair of connecting structures. The fixing structure is adapted to the top of the fire extinguisher bottle and has a U-shaped groove for fixing the fire extinguisher. The upper end of the connecting structure is connected to the edge of the fixing structure, and the lower end of the connecting structure is connected to the edge of the mounting groove. The pressing mechanism includes: A lead screw, which is rotatably mounted laterally on the suspension; A fixing block is sleeved on the lead screw, and an axial center hole is provided on the fixing block. An internal thread matching the lead screw is provided in the center hole. A position adjustment motor, whose output shaft is connected to the lead screw via a spline, is used to drive the lead screw to rotate and adjust the position of the fixed block on the lead screw; and A downward-pressing cylinder is vertically downward-facing. The upper end of the downward-pressing cylinder is connected to the lower end face of the fixing block. An elastic pressure block is provided at the lower end of the piston rod of the downward-pressing cylinder for pressing down the fire extinguisher handle.

2. The pressure relief device for a discarded dry powder fire extinguisher according to claim 1, characterized in that, Also includes: The first transmission mechanism, which is disposed at the upper end of the first support, is used to transmit the fire extinguisher transport box; The first transmission mechanism includes; Multiple first drive rollers are horizontally arranged and rotatably mounted on the upper end of the first support; Multiple first transmission wheels are respectively disposed at both ends of the first transmission roller, and adjacent first transmission wheels mesh with each other; The first drive motor has its output shaft keyed to the first drive wheel located at the starting end, and is used to output rotational power.

3. The pressure relief device for a discarded dry powder fire extinguisher according to claim 1 or 2, characterized in that, Also includes: A pair of shaping plates are arranged above the first support along the length of the first support, for adjusting the position of the fire extinguisher transport box on the first support so that the fire extinguisher transport box is located directly below the pressing mechanism.

4. The pressure relief device for a discarded dry powder fire extinguisher according to claim 1 or 2, characterized in that, Also includes: A shaking and mixing device is installed on one side of the starting end of the first support, which is used to drive the fire extinguisher transport box to shake up and down to mix the dry powder in the fire extinguisher. The shaking and mixing device includes: The second bracket is set on one side of the starting end of the first bracket. A horizontal support plate is provided at the upper end of the second bracket. Through holes are provided at the four corners of the horizontal support plate, and an opening is provided at the center of the horizontal support plate. A support frame is provided above the second bracket. Support columns extending downward are provided at the four corners of the support frame. The support columns pass through the through holes respectively. A column is provided at the center of the support frame. The column passes through the opening. Four compression springs are respectively sleeved on the support column, and the upper end face of each compression spring abuts against the support frame and the horizontal support plate. A vibration motor is disposed below the horizontal support plate, and a cam is provided on the motor output shaft, the cam being located directly below the opening; A rotating wheel, located at the lower end of the column and in contact with the outer edge of the cam, is used to vibrate up and down under the drive of the cam.

5. The pressure relief device for a discarded dry powder fire extinguisher according to claim 4, characterized in that, Also includes: A clamping device is disposed above the vibrating and shaking device for clamping the fire extinguisher transport box; The clamping device includes; A pair of vertical plates are disposed opposite to each other at the front and rear edges of the support frame; A pair of clamping cylinders are arranged opposite to each other, and the base of the clamping cylinders is fixed to the vertical plate; A pair of clamping plates are arranged opposite to each other and connected to the piston rod of the clamping cylinder for clamping the fire extinguisher transport box under the action of the clamping cylinder.

6. The pressure relief device for a discarded dry powder fire extinguisher according to claim 4, characterized in that, Also includes: The second transmission device is located on the upper end face of the vibrating and shaking device and is used to transport the fire extinguisher transport box. The second transmission device includes; Multiple second drive rollers are horizontally arranged and rotatably mounted on the upper end of the support frame; Multiple second transmission wheels are respectively disposed at both ends of the second transmission roller, and adjacent second transmission wheels mesh with each other; The second drive motor has its output shaft keyed to the second drive wheel located at the starting end, and is used to output rotational power.

7. The pressure relief device for a discarded dry powder fire extinguisher according to claim 1 or 2, characterized in that: The lower part of the pool body is funnel-shaped and gradually narrows, and a drain outlet is provided at the bottom of the pool body.

8. The pressure relief device for a discarded dry powder fire extinguisher according to claim 7, characterized in that: A filter screen for filtering dry powder is provided in the middle of the pool.

9. The pressure relief device for a discarded dry powder fire extinguisher according to claim 1 or 2, characterized in that: An inclined surface is provided on one side of the end of the first support for the fire extinguisher transport box to slide down. A horizontal surface is connected to the end of the inclined surface, and a buffer rubber block is provided at the end of the horizontal surface.

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