An air-breathing gas cylinder cleaning device and cleaning method

Abstract

The present invention provides an air breathing gas cylinder cleaning device and a cleaning method, which include a pressure reducing valve removal and positioning mechanism, a sand rolling mechanism for the inner cavity of the gas cylinder, a pressure cleaning system for the inner cavity of the gas cylinder, and a drying system for the inner cavity of the gas cylinder; the pressure reducing valve removal and positioning mechanism includes two sets of telescopic devices arranged horizontally, the front ends of the telescopic rods of the two sets of telescopic devices are connected to both ends of the same flexible belt body, a blocking portion for radially limiting the vertical gas cylinder body is arranged on the inner side of the flexible belt body, and a support plate for supporting the gas cylinder is arranged below the flexible belt body. The two sets of telescopic devices, the blocking portion and the flexible belt body together form a flexible hoop mechanism for holding the gas cylinder body tightly; the steps of the cleaning method include: tightly holding the gas cylinder body, rolling sand, cleaning under pressure, and drying. The present invention has higher cleaning efficiency and is more convenient to operate without deionized water; the air breathing gas cylinder cleaning device provided by the present invention occupies a small area and has low facility costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of breathing gas cylinder cleaning, and particularly relates to an air breathing gas cylinder cleaning device and a cleaning method. Background Art

[0002] An air breathing gas cylinder is an important part of an air respirator, and its main function is to store air and provide breathing air for firefighters. The air breathing gas cylinder is mainly composed of four layers of materials. The innermost layer is an aluminum inner liner, the bottle body interlayer is the best carbon fiber and glass fiber in the world at present, and the outermost layer is epoxy resin. The air breathing gas cylinder usually needs to be finely processed through more than a dozen processes and is stronger than a steel gas cylinder.

[0003] Since the compressed air stored in the air breathing gas cylinder is limited, considering its high manufacturing cost and good quality, it usually needs to be recycled (that is, after the air in the gas cylinder is used up, compressed air is refilled to facilitate continued use).

[0004] After the air in the air breathing gas cylinder is used up, there will always be some pollutants remaining in the gas cylinder, such as oil stains attached to the inner wall of the gas cylinder, decayed spots, and peculiar smells in the inner cavity of the gas cylinder. Especially in coastal areas where the air is humid and the salt content is high, the inner wall of the gas cylinder is prone to getting brined. Therefore, it is best to clean the gas cylinder before recycling and refilling it with new compressed air. However, there is currently no relatively effective cleaning method.

[0005] In the prior art, Document CN100549227 discloses a method for treating the inner wall of an ultrapure silane gas cylinder. The steps are as follows: removing the bottle valve of the treated gas cylinder, placing it on a rotating gas cylinder rolling machine, and polishing it with quartz sand and deionized water; pouring out the quartz sand and deionized water; inspecting the inner wall of the gas cylinder with an endoscope, and there should be no unpolished rust scars and uneven surfaces; cleaning the inner surface of the gas cylinder with deionized water until the conductivity after cleaning ≤ 0.1 uS / cm is qualified, inverting the gas cylinder, and pouring out the remaining water in the bottle; installing the bottle valve on the gas cylinder with a qualified inner wall and placing it in a vacuum drying oven at 105 - 110 °C to evacuate the gas cylinder. However, this solution is not suitable for cleaning air breathing gas cylinders. Firstly, the quartz sand and deionized water used cannot quickly clean the decayed spots on the inner wall of the air breathing gas cylinder. Secondly, the used gas cylinder rolling machine is an independent large-scale device, which not only has a large floor area, high equipment cost but also is very inconvenient to operate. More importantly, in the cleaning process of this method, the amount of tungsten-molybdenum alloy steel balls used is about 1 / 3 of the volume of the gas cylinder to have a better cleaning effect, and the required amount of tungsten-molybdenum alloy steel balls is large. Summary of the Invention

[0006] The object of the present invention is to provide an air breathing gas cylinder cleaning device and a cleaning method. By adopting this solution, it is only necessary to use less granular consumables to meet better cleaning requirements, and it has higher cleaning efficiency when deionized water is omitted, and is more convenient to operate at the same time.

[0007] The present invention adopts the following technical solutions.

[0008] An air breathing gas cylinder cleaning device includes a pressure reducing valve removal and positioning mechanism, an internal cavity sand rolling mechanism of the gas cylinder, an internal cavity pressure cleaning system of the gas cylinder, and an internal cavity drying system of the gas cylinder, which are arranged on a support frame; wherein, the pressure reducing valve removal and positioning mechanism includes two sets of telescopic devices arranged horizontally. The front ends of the telescopic rods of the two sets of telescopic devices are connected to the two ends of the same flexible belt body. A blocking portion for radially limiting the vertical gas cylinder body is arranged on the inner side of the flexible belt body. A support plate for supporting the gas cylinder is arranged below the flexible belt body. The two sets of telescopic devices, the blocking portion and the flexible belt body together form a flexible hoop mechanism for holding the gas cylinder body. Adopting such a structure also has the advantage of not needing to manually and frequently adjust the distance of the flexible belt body according to the size of the gas cylinder.

[0009] In order to further improve the cleaning efficiency of the air breathing gas cylinder, the internal cavity sand rolling mechanism of the gas cylinder includes a support table, on which at least three groups of horizontally arranged rollers are arranged. The first group of rollers and the second group of rollers are placed flat on the support table. The third group of rollers is located above the first group of rollers and is movably connected to the connecting member of the support table through a hinge assembly. All the rollers limit the rotation of the horizontally placed gas cylinder body, and the bottom of the gas cylinder abuts against the concave plate inside the connecting member. The concave area of the concave plate coincides with the arc surface of the bottom of the gas cylinder.

[0010] In order to improve the stability during the cleaning process, the first group of rollers and / or the second group of rollers serve as driving wheels for driving the gas cylinder to rotate. The third group of rollers and the fourth group of rollers are symmetrically arranged and are both located above the gas cylinder body.

[0011] In order to further improve the cleaning efficiency of the air breathing gas cylinder, a plurality of vertically arranged rod-shaped nozzles are also arranged on the support frame. The root of each rod-shaped nozzle is provided with a concave seat. The concave portion of the concave seat coincides with the arc surface near the mouth of the gas cylinder. A limiting orifice plate is arranged above the concave seat. The rod-shaped nozzle passes through the limiting orifice of the limiting orifice plate. When the gas cylinder is inserted into the limiting orifice in an inverted manner, the rod-shaped nozzle extends into the inner cavity of the gas cylinder.

[0012] Among them, the first part of the rod-shaped nozzles is connected to an oil stain cleaning system, the second part of the rod-shaped nozzles is connected to an odor cleaning system, the third part of the rod-shaped nozzles is connected to a steam and clean water cleaning system, and the fourth part of the rod-shaped nozzles is connected to a hot air drying system.

[0013] In order to achieve more efficient and better cleaning effects with fewer abrasive grains, the internal sand-rolling mechanism of the gas cylinder further includes a compressed cotton, which is fixedly sleeved on the cantilever rod. The length of the cantilever rod is not less than the length of the flush inner cavity, and the diameter of the cantilever rod is smaller than the inner diameter of the gas cylinder nozzle. Before the compressed cotton expands, it can extend into the inner cavity of the gas cylinder along with the cantilever rod. After the compressed cotton expands, the outer wall of the compressed cotton abuts against the wall surface of the inner cavity of the gas cylinder.

[0014] A method for cleaning a gas cylinder using the aforementioned air-breathing gas cylinder cleaning device, the steps sequentially include:

[0015] Step 1: First, place the gas cylinder to be cleaned inside the flexible belt, with the bottom of the gas cylinder abutting against the support plate. Then, control the telescopic rods of the two sets of telescopic devices to retract simultaneously to tightly hold the body of the gas cylinder, and then remove the pressure reducing valve of the gas cylinder.

[0016] Step 2: Remove the gas cylinder from the pressure reducing valve removal positioning mechanism, then pour abrasive grains into the inner cavity of the gas cylinder, place the gas cylinder horizontally on the internal sand-rolling mechanism of the gas cylinder, and then start the internal sand-rolling mechanism of the gas cylinder to rotate the gas cylinder at a set speed.

[0017] Step 3: Remove the gas cylinder from the internal sand-rolling mechanism of the gas cylinder, and then pour out the abrasive grains in the inner cavity of the gas cylinder.

[0018] Step 4: Insert the gas cylinder into the corresponding limit hole of the oil cleaning system, so that the rod-shaped nozzle extends into the inner cavity of the gas cylinder to clean the oil stain in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole of the odor cleaning system, so that the rod-shaped nozzle extends into the inner cavity of the gas cylinder to clean the odor in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole of the steam and clean water cleaning system, so that the rod-shaped nozzle extends into the inner cavity of the gas cylinder to disinfect and clean the inner cavity of the gas cylinder; and, insert the gas cylinder into the corresponding limit hole of the hot air drying system, so that the rod-shaped nozzle extends into the inner cavity of the gas cylinder to dry the inner cavity of the gas cylinder.

[0019] As a preferred solution, in step 2, the volume of the abrasive grains is 1 / 4 of the inner cavity volume of the gas cylinder.

[0020] As a preferred solution, in step 2, the rotation speed of the gas cylinder is 150 - 400 revolutions per minute.

[0021] A method for cleaning a gas cylinder using the aforementioned air-breathing gas cylinder cleaning device, the steps sequentially include:

[0022] Step 1: First, place the gas cylinder to be cleaned inside the flexible belt, with the bottom of the gas cylinder abutting against the support plate. Then, control the telescopic rods of the two sets of telescopic devices to retract simultaneously to tightly hold the body of the gas cylinder, and then remove the pressure reducing valve of the gas cylinder.

[0023] Step 2: Remove the gas cylinder from the pressure reducing valve removal positioning mechanism, then pour sand grains into the inner cavity of the gas cylinder. The volume of the sand grains is 1 / 4 of the inner cavity volume of the gas cylinder, and place the gas cylinder horizontally on the sand rolling mechanism in the inner cavity of the gas cylinder.

[0024] Insert the unexpanded compression cotton and the cantilever rod into the inner cavity of the gas cylinder, and then control the compression cotton to expand so that the outer wall of the compression cotton abuts against the wall surface of the inner cavity of the gas cylinder.

[0025] Then start the sand rolling mechanism in the inner cavity of the gas cylinder to make the gas cylinder rotate at a speed of 180 - 400 revolutions per minute.

[0026] Step 3: Remove the gas cylinder from the sand rolling mechanism in the inner cavity of the gas cylinder, then take out the expanded compression cotton, and pour out the sand grains in the inner cavity of the gas cylinder.

[0027] Step 4: Insert the gas cylinder into the corresponding limit hole of the oil cleaning system, make the rod - type nozzle extend into the inner cavity of the gas cylinder, and clean the oil stain in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole of the odor cleaning system, make the rod - type nozzle extend into the inner cavity of the gas cylinder, and clean the odor in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole of the steam and clean water cleaning system, make the rod - type nozzle extend into the inner cavity of the gas cylinder, and disinfect and clean the inner cavity of the gas cylinder; and, insert the gas cylinder into the corresponding limit hole of the hot air drying system, make the rod - type nozzle extend into the inner cavity of the gas cylinder, and dry the inner cavity of the gas cylinder.

[0028] Beneficial effects: Adopting the solution of the present invention, it is possible to meet better cleaning requirements with fewer granular consumables. When meeting the requirements of better cleaning effect, the required granular consumables are reduced from 1 / 3 of the original gas cylinder volume to 1 / 4, and it has a higher cleaning efficiency without deionized water, and is more convenient to operate at the same time; the air - breathing gas cylinder cleaning device provided by the present invention occupies a small area and has low facility costs. Compared with the existing equipment for cleaning silane gas cylinders, the floor area can be reduced by at least half, and it is convenient to operate, and a single person can smoothly carry out continuous cleaning operation. Description of the Drawings

[0029] Figure 1 、 Figure 2 It is a schematic diagram of the sand rolling mechanism in the inner cavity of the air - breathing gas cylinder cleaning device in Embodiment 1. Figure 2 In it, the light - colored line corresponding to the hinge assembly 26 indicates that it is in the upward - turning state, and the black line corresponding to the hinge assembly 26 indicates that it is in the buckling state.

[0030] Figure 3 It is a schematic diagram of the pressure reducing valve removal positioning mechanism of the air - breathing gas cylinder cleaning device in Embodiment 1.

[0031] Figure 4 It is a schematic diagram of the pressure cleaning state in the inner cavity of the air - breathing gas cylinder cleaning device in Embodiment 1.

[0032] Figure 5 It is a schematic diagram of the main structure of the air breathing gas cylinder cleaning device in Embodiment 1;

[0033] Figure 6 It is a schematic diagram of the air-dried state of the inner cavity of the gas cylinder of the air breathing gas cylinder cleaning device in Embodiment 1;

[0034] Figure 7 It is a schematic diagram of the cantilever rod and its compression cotton of the air breathing gas cylinder cleaning device in Embodiment 2 (before the compression cotton expands);

[0035] Figure 8 It is a schematic diagram of the state of sand rolling in the inner cavity of the gas cylinder in Embodiment 2 (after the compression cotton expands); Embodiment

[0036] Next, in conjunction with the accompanying drawings, the technical solutions in the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0037] Combined with Figures 1 to 6 As shown, an air breathing gas cylinder cleaning device includes a pressure reducing valve removal and positioning mechanism, an inner cavity sand rolling mechanism of the gas cylinder 4, an inner cavity pressure cleaning system of the gas cylinder 4, and an inner cavity drying system of the gas cylinder 4 provided on a support frame 1; wherein, as Figure 3 As shown, the pressure reducing valve removal and positioning mechanism includes two sets of telescopic devices 10 arranged horizontally. Both sets of telescopic devices 10 are installed on the partition inside the support frame 1. The front ends of the telescopic rods of the two sets of telescopic devices 10 are connected to both ends of the same flexible belt body 11. The flexible belt body 11 is made of a belt. A blocking portion 12 for radially limiting the body of the vertically arranged gas cylinder 4 is provided on the inner side of the flexible belt body 11. A support plate 13 for supporting the gas cylinder 4 is provided below the flexible belt body 11. The two sets of telescopic devices 10, the blocking portion 12, and the flexible belt body 11 together form a flexible hoop mechanism for holding the body of the gas cylinder 4.

[0038] During use, after the telescopic rods of the two sets of telescopic devices 10 extend, the space inside the flexible belt body 11 becomes larger. At this time, the gas cylinder 4 can be vertically placed in the space inside the flexible belt body 11 and supported on the support plate 13. After the telescopic rods of the two sets of telescopic devices 10 retract, the space inside the flexible belt body 11 becomes smaller until the gas cylinder 4 tightly abuts against the blocking portion 12.

[0039] In this embodiment, as Figure 1 and Figure 2As shown, the sand rolling mechanism for the inner cavity of the gas cylinder 4 includes a support platform 2, on which four groups of horizontally arranged rollers are arranged, the first group of rollers 21 and the second group of rollers 22 are placed flat on the support platform 2, the third group of rollers 23 is located above the first group of rollers 21 and is movably connected to the connecting member 20 of the support platform 2 through a hinge assembly 26, and all rollers are used to limit the rotation of the body of the gas cylinder 4 placed horizontally, and the bottom of the gas cylinder 4 is against the concave plate 25 on the inner side of the connecting member 20, and the concave area of the concave plate 25 coincides with the arc surface of the bottom of the gas cylinder 4. Among them, the first group of rollers 21 and the second group of rollers 22 serve as driving wheels for driving the gas cylinder 4 to rotate, the first group of rollers 21 and the second group of rollers 22 are connected to the driving motor 27 through a pulley mechanism, and the third group of rollers 23 and the fourth group of rollers 24 are symmetrically arranged and are both located above the body of the gas cylinder 4.

[0040] In this embodiment, a plurality of vertically arranged rod-type nozzles 3 are also provided on the support frame 1. A concave seat 30 is provided at the root of each rod-type nozzle 3. The inner concave portion of the concave seat 30 matches the arc surface near the mouth of the gas cylinder 4. A limiting orifice plate 31 is provided above the concave seat 30. The rod-type nozzle 3 passes through the limiting hole 32 of the limiting orifice plate 31. When the gas cylinder 4 is inserted into the limiting hole 32 in an inverted manner, the rod-type nozzle 3 extends into the inner cavity of the gas cylinder 4. Among them, the first part of the rod-type nozzle is connected to the oil cleaning system, which is used to provide pressurized oil cleaning liquid; the second part of the rod-type nozzle is connected to the odor cleaning system, which is used to provide pressurized odor cleaning liquid; the third part of the rod-type nozzle is connected to the steam and clean water cleaning system, which is used to provide high-pressure steam and pressurized clean water; the fourth part of the rod-type nozzle is connected to the hot air drying system, which is used to provide dry hot air at a set temperature. Among them, the liquid used in the oil cleaning system is edible grade baking soda solution, and the liquid used in the odor cleaning system is edible grade acetic acid.

[0041] A method for cleaning a gas cylinder using the air breathing gas cylinder cleaning device of this embodiment, the steps sequentially comprising:

[0042] Step 1, first place the gas cylinder 4 to be cleaned inside the flexible belt 11, with the bottom of the gas cylinder 4 against the support plate 13, then control the telescopic rods of the two sets of telescopes 10 to retract, hold the gas cylinder 4 tightly, and then remove the pressure reducing valve of the gas cylinder 4;

[0043] Step 2, remove the gas cylinder 4 from the pressure reducing valve disassembly positioning mechanism, and then pour sand into the inner cavity of the gas cylinder 4, the sand adopts corundum with a particle size of 80-100 mesh, and place the gas cylinder 4 horizontally on the inner cavity sand rolling mechanism of the gas cylinder 4, and then turn on the inner cavity sand rolling mechanism of the gas cylinder 4 to make the gas cylinder 4 rotate at a set speed, and the rotation speed of the gas cylinder 4 is 180 revolutions per minute;

[0044] Step 3: Remove the gas cylinder 4 from the internal cavity sand rolling mechanism of the gas cylinder 4, and then pour out the sand grains in the internal cavity of the gas cylinder 4.

[0045] Step 4: Insert the gas cylinder 4 into the corresponding limit hole 32 of the oil cleaning system, so that the rod nozzle 3 extends into the internal cavity of the gas cylinder 4 to clean the oil stain in the internal cavity of the gas cylinder 4; insert the gas cylinder 4 into the corresponding limit hole 32 of the odor cleaning system, so that the rod nozzle 3 extends into the internal cavity of the gas cylinder 4 to clean the odor in the internal cavity of the gas cylinder 4; insert the gas cylinder 4 into the corresponding limit hole 32 of the steam and clean water cleaning system, so that the rod nozzle 3 extends into the internal cavity of the gas cylinder 4 to disinfect and clean the internal cavity of the gas cylinder 4; insert the gas cylinder 4 into the corresponding limit hole 32 of the hot air drying system, so that the rod nozzle 3 extends into the internal cavity of the gas cylinder 4 to dry the internal cavity of the gas cylinder 4.

[0046] Adopting the solution in this embodiment can not only quickly and stably fix and clean the air breathing gas cylinder, but also is suitable for single-person operation. The operation process is smooth and convenient. At the same time, it has excellent cleaning effect and can effectively remove the attachments and corrosion spots in the air breathing gas cylinder. Embodiment

[0047] An air breathing gas cylinder cleaning device, its main structure refers to Embodiment 1, and its main difference from Embodiment 1 is: combined Figure 7 and Figure 8 As shown, the internal cavity sand rolling mechanism of the gas cylinder 4 further includes a compressed cotton 40 (made of the same cotton material as the compressed facial mask), the compressed cotton is fixedly sleeved on the cantilever rod 41, the cantilever rod 41 is made of a stainless steel pipe with a hollow structure and a wall thickness of 0.5 mm, several through holes 43 are arranged at intervals on the cantilever rod 41, and the cantilever rod 41 is externally connected to a clean water supply system; the length of the cantilever rod 41 is not less than the length of the flush internal cavity, and the diameter of the unexpanded compressed cotton 40 is smaller than the inner diameter of the mouth of the gas cylinder 4; before the compressed cotton 40 expands, it can extend into the internal cavity of the gas cylinder 4 along with the cantilever rod 41; after the compressed cotton 40 expands (the expanded compressed cotton is represented by the number 42), the outer wall of the compressed cotton 40 abuts against the wall surface of the internal cavity of the gas cylinder 4.

[0048] A gas cylinder cleaning method using the air breathing gas cylinder cleaning device in this embodiment, the steps sequentially include:

[0049] Step 1: First, place the gas cylinder 4 to be cleaned inside the flexible belt body 11, with the bottom of the gas cylinder 4 abutted against the support plate 13, then control the telescopic rods of the two sets of telescopic devices 10 to retract simultaneously to tightly hold the body of the gas cylinder 4, and then remove the pressure reducing valve of the gas cylinder 4.

[0050] Step 2: Remove the gas cylinder 4 from the pressure reducing valve removal positioning mechanism, and then pour sand grains into the internal cavity of the gas cylinder 4. The sand grains are emery with a particle size of 20 - 30 mesh, and the volume of the sand grains is 1 / 4 of the internal cavity volume of the gas cylinder 4. Then place the gas cylinder 4 horizontally on the internal cavity sand rolling mechanism of the gas cylinder 4.

[0051] The unexpanded compressed cotton 40 and the cantilever rod 41 are extended into the inner cavity of the gas cylinder 4, and then the compressed cotton 40 is controlled to expand so that the outer wall of the compressed cotton 40 is pressed against the wall of the inner cavity of the gas cylinder 4; because the unexpanded compressed cotton 40 is tightly attached to the cantilever rod 41, the cantilever rod 41 with the compressed cotton 40 can be inserted into the inner cavity of the gas cylinder 4 at this time. When the front end of the cantilever rod 41 is against the bottom end of the gas cylinder 4, the cantilever rod 41 is further inserted into a specified depth so that the cantilever rod 41 is bent and close to the wall of the inner cavity of the gas cylinder 4, and then the clean water supply system external to the cantilever rod 41 is turned on, and a proper amount of water is supplied to the compressed cotton 40 through the cantilever rod 41. The compressed cotton 40 will expand after absorbing water, so that the expanded compressed cotton 40 is pressed against the wall of the inner cavity of the gas cylinder 4. The state at this time is as shown in FIG. Figure 7 As shown;

[0052] It should be noted that Figure 7 Taking the middle state as the reference, in order to prevent the sand grains in the gas cylinder from circumferentially moving during the rotation, when the expanded compressed cotton 40 is located on the right side of the sand grains, the rotation direction of the gas cylinder 4 should be controlled to rotate clockwise, and when the expanded compressed cotton 40 is located on the left side of the sand grains, the rotation direction of the gas cylinder 4 should be controlled to rotate counterclockwise;

[0053] Then, the sand rolling mechanism in the inner cavity of the gas cylinder 4 is turned on to rotate the gas cylinder 4 at a speed of 400 rpm;

[0054] Step 3, remove the gas cylinder 4 from the sand rolling mechanism in the inner cavity of the gas cylinder 4, then take out the expanded compressed cotton 40, and pour out the sand in the inner cavity of the gas cylinder 4; since the expanded compressed cotton 40 can shrink after being stressed, it can be smoothly drawn out from the inner cavity of the gas cylinder 4;

[0055] Step 4, insert the gas cylinder 4 into the limiting hole 32 corresponding to the oil cleaning system, so that the rod nozzle 3 extends into the inner cavity of the gas cylinder 4, and clean the oil in the inner cavity of the gas cylinder 4; insert the gas cylinder 4 into the limiting hole 32 corresponding to the odor cleaning system, so that the rod nozzle 3 extends into the inner cavity of the gas cylinder 4, and clean the inner cavity of the gas cylinder 4 for odor; insert the gas cylinder 4 into the limiting hole 32 corresponding to the steam and clean water cleaning system, so that the rod nozzle 3 extends into the inner cavity of the gas cylinder 4, and disinfect and clean the inner cavity of the gas cylinder 4; insert the gas cylinder 4 into the limiting hole 32 corresponding to the hot air drying system, so that the rod nozzle 3 extends into the inner cavity of the gas cylinder 4, and air-dry the inner cavity of the gas cylinder 4.

[0056] Adopting the solution of Embodiment 2, only less granular consumables are needed to meet better cleaning requirements under the condition of high-speed rotation (400 revolutions per minute). (While adopting the solution in the background technology or its similar solution, it is impossible to effectively remove the spots in the gas cylinder when the rotation speed is higher than 260 revolutions per minute, mainly because the centrifugal force will drive the sand grains to rotate synchronously with the gas cylinder). Under the condition of meeting the requirements of better cleaning effect, the required granular consumables are reduced from 1 / 3 of the original gas cylinder volume to 1 / 4, and it has higher cleaning efficiency while eliminating deionized water, and is more convenient to operate.

[0057] The air breathing gas cylinder cleaning device provided by the present invention has a small floor area, less than 2.5 square meters, low facility cost, and the floor area can be reduced by at least half compared with the equipment used for cleaning existing silane gas cylinders, and is convenient to operate, and a single person can smoothly carry out continuous cleaning operation.

Claims

1. An air breathing gas cylinder cleaning device, characterized in that: It includes a pressure reducing valve removal and positioning mechanism, an internal cavity sand rolling mechanism for gas cylinders, an internal cavity pressure cleaning system for gas cylinders, and an internal cavity drying system for gas cylinders, which are arranged on a support frame (1); among them, the pressure reducing valve removal and positioning mechanism includes two sets of extensors (10) arranged horizontally. The front ends of the telescopic rods of the two sets of extensors (10) are connected to both ends of the same flexible belt body (11). A blocking portion (12) for radially limiting the vertical gas cylinder body is arranged inside the flexible belt body (11). A support plate (13) for supporting the gas cylinder is arranged below the flexible belt body (11). The two sets of extensors (10), the blocking portion (12) and the flexible belt body (11) together form a flexible hoop mechanism for holding the gas cylinder body tightly. The internal cavity sand rolling mechanism for the gas cylinder includes a support table (2). At least three groups of horizontally arranged rollers are arranged on the support table (2). The first group of rollers (21) and the second group of rollers (22) are placed flat on the support table (2). The third group of rollers (23) is located above the first group of rollers (21) and is movably connected to a connecting member (20) of the support table (2) through a hinge assembly. All the rollers limit the rotation of the horizontally placed gas cylinder body, and the bottom of the gas cylinder abuts against the concave plate (25) inside the connecting member (20). The concave area of the concave plate (25) coincides with the arc surface of the bottom of the gas cylinder. The internal cavity sand rolling mechanism for the gas cylinder further includes a compressed cotton (40). The compressed cotton is fixedly sleeved on a cantilever rod (41). The length of the cantilever rod (41) is not less than the length of the flush inner cavity, and the diameter of the cantilever rod (41) is smaller than the inner diameter of the gas cylinder nozzle. Before the compressed cotton (40) expands, it can extend into the internal cavity of the gas cylinder along with the cantilever rod (41). After the compressed cotton (40) expands, the outer wall of the compressed cotton (40) abuts against the wall surface of the internal cavity of the gas cylinder.

2. The air-breathing gas cylinder cleaning device according to claim 1, characterized in that: The first group of rollers (21) and / or the second group of rollers (22) serve as driving wheels for driving the gas cylinder to rotate. The third group of rollers (23) and the fourth group of rollers (24) are symmetrically arranged and are both located above the gas cylinder body.

3. The air breathing gas cylinder cleaning device according to any one of claims 1-2, characterized in that: On the support frame (1), a plurality of vertically arranged rod nozzles (3) are further arranged. The root of each rod nozzle (3) is provided with a concave seat (30). The concave part of the concave seat (30) coincides with the arc surface near the nozzle of the gas cylinder. A limiting orifice plate (31) is arranged above the concave seat (30). The rod nozzle (3) passes through the limiting orifice (32) of the limiting orifice plate (31). After the gas cylinder is inserted into the limiting orifice (32) in an inverted manner, the rod nozzle (3) extends into the internal cavity of the gas cylinder.

4. The air-breathing gas cylinder cleaning device according to claim 3, characterized in that: The first part of the rod nozzles is connected to an oil stain cleaning system, the second part of the rod nozzles is connected to an odor cleaning system, the third part of the rod nozzles is connected to a steam and clean water cleaning system, and the fourth part of the rod nozzles is connected to a hot air drying system.

5. A method for cleaning an air breathing gas cylinder using the gas cylinder cleaning device according to any one of claims 1-4, characterized in that, The steps sequentially include: Step 1, first place the gas cylinder to be cleaned inside the flexible belt body (11), with the bottom of the gas cylinder abuting against the support plate (13). Then control the telescopic rods of the two sets of extensors (10) to retract, tightly hold the gas cylinder body, and then remove the pressure reducing valve of the gas cylinder. Step 2: Remove the gas cylinder from the positioning mechanism of the pressure reducing valve, then pour sand grains into the inner cavity of the gas cylinder, place the gas cylinder horizontally on the sand rolling mechanism in the inner cavity of the gas cylinder, and then start the sand rolling mechanism in the inner cavity of the gas cylinder to make the gas cylinder rotate at a set speed; Step 3: Remove the gas cylinder from the sand rolling mechanism in the inner cavity of the gas cylinder, and then pour out the sand grains in the inner cavity of the gas cylinder; Step 4: Insert the gas cylinder into the corresponding limit hole (32) of the oil cleaning system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to clean the oil stain in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole (32) of the odor cleaning system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to clean the odor in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole (32) of the steam and clean water cleaning system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to perform disinfection cleaning on the inner cavity of the gas cylinder; and, insert the gas cylinder into the corresponding limit hole (32) of the hot air drying system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to dry the inner cavity of the gas cylinder.

6. The gas cylinder cleaning method according to claim 5, characterized in that: In Step 2, the volume of the sand grains is 1 / 4 of the inner cavity volume of the gas cylinder.

7. The gas cylinder cleaning method according to claim 6, characterized in that: In Step 2, the rotation speed of the gas cylinder is 150 - 400 revolutions per minute.

8. A method for cleaning a gas cylinder using the gas cylinder cleaning device according to claim 4, characterized in that, The steps include in sequence: Step 1: First, place the gas cylinder to be cleaned inside the flexible belt body (11), with the bottom of the gas cylinder abutted against the support plate (13), then control the telescopic rods of the two sets of telescopic devices (10) to retract simultaneously to hold the body of the gas cylinder tightly, and then remove the pressure reducing valve of the gas cylinder; Step 2: Remove the gas cylinder from the positioning mechanism for removing the pressure reducing valve, then pour sand grains into the inner cavity of the gas cylinder, the volume of the sand grains is 1 / 4 of the inner cavity volume of the gas cylinder, and place the gas cylinder horizontally on the sand rolling mechanism in the inner cavity of the gas cylinder, Insert the unexpanded compressed cotton (40) and the cantilever rod (41) into the inner cavity of the gas cylinder, and then control the compressed cotton (40) to expand so that the outer wall of the compressed cotton (40) abuts against the wall surface of the inner cavity of the gas cylinder; Then start the sand rolling mechanism in the inner cavity of the gas cylinder to make the gas cylinder rotate at a speed of 180 - 400 revolutions per minute; Step 3: Remove the gas cylinder from the sand rolling mechanism in the inner cavity of the gas cylinder, then take out the expanded compressed cotton (40), and pour out the sand grains in the inner cavity of the gas cylinder; Step 4: Insert the gas cylinder into the corresponding limit hole (32) of the oil cleaning system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to clean the oil stain in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole (32) of the odor cleaning system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to clean the odor in the inner cavity of the gas cylinder; and / or insert the gas cylinder into the corresponding limit hole (32) of the steam and clean water cleaning system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to perform disinfection cleaning on the inner cavity of the gas cylinder; and, insert the gas cylinder into the corresponding limit hole (32) of the hot air drying system, so that the rod nozzle (3) extends into the inner cavity of the gas cylinder to dry the inner cavity of the gas cylinder.

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