A comprehensive protection system for corrosive gas cylinders

Abstract

The present invention provides a comprehensive protection system for corrosive gas cylinders, comprising a cabinet, a sealing door sealed on the cabinet, and a waste filter device connected to a waste gas outlet of the cabinet; a working area and a storage area are arranged in the cabinet, and the working area and the storage area are respectively provided with at least one set of fixed positions for accommodating steel cylinders; a steel cylinder valve is installed at the top port of the steel cylinder, and a pressure reducing valve is connected to the gas outlet of the steel cylinder valve, and the outlet of the pressure reducing valve is guided to the gas outlet of the cabinet through an air pipe; a gas leakage alarm for detecting gas leakage in the cabinet is also connected to the cabinet; the waste filter device comprises a first solenoid valve capable of controlling the opening and closing of an air inlet on the cabinet, a second solenoid valve capable of controlling the opening and closing of a waste gas outlet on the cabinet, and a filter body capable of adsorbing and filtering leaked gas in the cabinet, and the present invention can safely store corrosive gas cylinders, and has better sealing and protection effects.

Description

Technical Field

[0001] The invention relates to a protection system, in particular to a comprehensive protection system for corrosive gas cylinders. Background Art

[0002] Industrial gases include nitrogen, argon, sulfur dioxide, hydrogen sulfide, nitrogen dioxide, chlorine, etc. Many of these gases are toxic or corrosive. These gases are currently widely used in industrial production, experiments, teaching, etc. During use, the storage of gases must strictly comply with safety management. Once toxic and corrosive gases leak, the consequences will be disastrous.

[0003] Therefore, there is an urgent need for a comprehensive protection system for corrosive gas cylinders that can safely store corrosive gas cylinders and has better sealing and protection effects. Summary of the invention

[0004] The purpose of the present invention is to provide a comprehensive protection system for corrosive gas cylinders, which can safely store corrosive gas cylinders and has better sealing and protection effects.

[0005] The present invention provides the following technical solutions:

[0006] A comprehensive protection system for corrosive gas cylinders, comprising a cabinet, a sealing door sealed on the cabinet, and a waste filter device connected to the exhaust port of the cabinet; a working area and a storage area are arranged in the cabinet, and the working area and the storage area are respectively provided with at least one set of fixed positions for accommodating steel cylinders; a steel cylinder valve is installed at the top port of the steel cylinder, and the gas outlet of the steel cylinder valve is connected to a pressure reducing valve, and the outlet of the pressure reducing valve is guided to the gas outlet of the cabinet through an air pipe; a gas leakage alarm device for detecting gas leakage in the cabinet is also connected to the cabinet; the waste filter device comprises a first solenoid valve capable of controlling the opening and closing of the air inlet on the cabinet, a second solenoid valve capable of controlling the opening and closing of the exhaust port on the cabinet, and a filter body capable of adsorbing and filtering the leaked gas in the cabinet.

[0007] Furthermore, a protruding cavity higher than the sealing cover is provided on the top of the cabinet, the pressure reducing valve is fixed in the protruding cavity, the adjusting handle of the pressure reducing valve can pass through the protruding cavity and be placed outside the cabinet, and a visible transparent window is also provided on the protruding cavity for observing the reading on the pressure gauge of the pressure reducing valve.

[0008] Furthermore, it also includes a controller and an audible and visual alarm. The controller can be electrically connected to the gas leakage alarm, the audible and visual alarm and the waste exhaust filter device. After the gas leakage alarm detects that the leakage reaches a set concentration, the controller can trigger the audible and visual alarm and the waste exhaust filter device for ventilation.

[0009] Furthermore, it also includes an external valve handle which can lead the rotary switch of the cylinder valve out of the cabinet.

[0010] Preferably, the external valve handle includes a sealed bearing, a rotating shaft and a handwheel, the sealed bearing is arranged on the sealing door, and one end of the rotating shaft is fixedly connected to the rotary switch of the cylinder valve, and the other end can pass through the sealing door and be connected to the handwheel, and the rotary switch of the cylinder valve can be driven to open or close the cylinder valve by rotating the handwheel.

[0011] Preferably, the sealing door is provided with a silicone sealing strip that can be sealed with the cabinet body, and the sealing door is locked and fixed to the side wall of the cabinet body by a lock.

[0012] Preferably, the filter body includes a filter box, an atomizer, a wire mesh demister, an activated carbon layer and an anti-corrosion fan. The filter box is wrapped with an insulation layer and a refrigeration layer from the outside to the inside, and the filter box is filled with absorption liquid. The atomizer is fixed in the filter box above the absorption liquid. The filter box is provided with an exhaust gas inlet, and the wire mesh demister and the activated carbon layer are distributed above the exhaust gas inlet from bottom to top, and the anti-corrosion fan is installed at the top outlet of the filter box.

[0013] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention not only facilitates the continuity of work by designing the cabinet as a working area and a storage area, but also provides a temporary storage space for empty cylinders, thereby avoiding secondary environmental pollution caused by temporary movement, and because the gas flowing out from the gas outlet of the cylinder valve can be decompressed by the pressure reducing valve and then sent out from the gas outlet of the cabinet, and once the leakage of the cylinder reaches a certain amount, an alarm can be given by the gas leakage alarm device arranged on the cabinet, and the leaked gas in the cabinet can be washed out from the exhaust port of the cabinet in a flow direction through the exhaust filter device, and adsorbed and filtered by the filter body, so the sealing and protection effects are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the interior of the cabinet body in the present invention;

[0016] Figure 2 It is a schematic diagram of the interior of the back of the cabinet in the present invention;

[0017] Figure 3 It is a schematic diagram of the interior of the right side of the cabinet in the present invention;

[0018] Figure 4 It is a schematic diagram of the interior of the left side of the cabinet in the present invention;

[0019] Figure 5 It is a front view of the cabinet in the present invention;

[0020] Figure 6It is a schematic diagram of the back side of the cabinet in the present invention;

[0021] Figure 7 It is a schematic diagram of the right side of the cabinet in the present invention;

[0022] Figure 8 It is a structural cross-sectional view of the filter body in the present invention;

[0023] Markings in the figure: 1 is a cabinet, 2 is a sealing door, 3 is a waste filter device, 4 is a cylinder, 5 is a cylinder valve, 6 is a pressure reducing valve, 7 is an adjusting handle, 8 is a visible transparent window, 9 is a gas leakage alarm, 10 is a controller, 11 is an audible and visual alarm, 12 is an air inlet, 13 is an exhaust port, 14 is a hand wheel, 15 is a tightening lock, 31 is a filter box, 32 is an atomizer, 33 is a wire mesh demister, 34 is an activated carbon layer, 35 is an anti-corrosion fan, 36 is an insulation layer, and 37 is a refrigeration layer. DETAILED DESCRIPTION

[0024] Combination Figures 1 to 8The comprehensive protection system for corrosive gas cylinders shown in the figure comprises a cabinet 1, a sealing door 2 sealed on the cabinet 1, and a waste gas filter 3 connected to the waste gas outlet 13 of the cabinet 1. The cabinet 1 is made of corrosion-resistant stainless steel material; a working area and a storage area are arranged in the cabinet 1, and the working area and the storage area are respectively provided with at least one set of fixed positions for accommodating cylinders 4. In the present embodiment, there are four sets of cylinders 4 in the working area and the storage area, wherein the storage area is used to store spare cylinders or empty cylinders, because generally, in order to consider the continuity of work when we use it, we will store one bottle of each gas. Putting it here can avoid the situation that a bottle of gas cannot be refilled in time after it is used up, thus causing disconnection in work. In addition, after a bottle of industrial gas is used up, the industrial gas company may not be able to come and take the empty bottle in time, and it is also very dangerous to place the empty bottle casually. In this way, the empty bottle can still be left in the sealed cabinet 1, waiting for the industrial gas factory to take it away; after the steel cylinder 4 is fixed in the fixed position of the cabinet 1, since a steel cylinder valve 5 is installed at the top outlet of the steel cylinder 4, the gas outlet of the steel cylinder valve 5 is connected to a pressure reducing valve 6 using a hose made of 316 material, and the pressure reducing valve 6 is designed to be fixed to the upper position of the cabinet 1, that is, in order to ensure the structure In order to ensure the continuity and aesthetics of the cabinet, a protruding cavity higher than the sealing cover is provided on the top of the cabinet 1, and the pressure reducing valve 6 is fixed in the protruding cavity. The adjusting handle 7 of the pressure reducing valve 6 can pass through the protruding cavity and be placed outside the cabinet 1. A visible transparent window 8 for observing the reading on the pressure gauge of the pressure reducing valve 6 is also provided on the protruding cavity. The gas after decompression from the outlet of the pressure reducing valve 6 is guided to the air outlet of the cabinet 1 through a polytetrafluoroethylene air pipe, and a set of plastic sleeves can be designed outside the air pipe, which is sealed and connected to the silicone pad of the cabinet 1. The sleeve wraps the air pipe and directly enters the laboratory, and the whole process ensures that there is no air leakage to the outside; the cabinet 1 is also connected with a gas leakage detector in the cabinet 1. The gas leakage alarm device 9 detects that the leakage reaches the set concentration, starts to alarm, and can trigger the sound and light alarm device 11 and the exhaust filter device 3 for ventilation through the controller 10 at the same time. After hearing the alarm, the staff can go to the outside of the sealed cabinet 1 and use the specially designed device to lock the valve of the cylinder 4. Soon the cabinet 1 is filtered clean, and the staff investigates the cause of the leakage; the exhaust filter device 3 includes a first solenoid valve that can control the opening and closing of the air inlet 12 on the cabinet 1, a second solenoid valve that can control the opening and closing of the exhaust port 13 on the cabinet 1, and a filter body that can absorb and filter the leaked gas in the cabinet 1;The filter body can use the existing gas filtering equipment in the prior art to filter the leaked gas, or can use the filtering structure in this embodiment, that is, the filter body used in the present invention includes a filter box 31, an atomizer 32, a wire mesh demister 33, an activated carbon layer 34 and an anti-corrosion fan 35, and the filter box 31 is wrapped with an insulation layer 36 and a cooling layer 37 from the outside to the inside. The insulation layer 36 is a heat-insulating material wrapped outside the filter box 31, and the cooling layer 37 is an externally wrapped cooling component, for example, a coolant pipe wrapped on the filter box 31, so that the heat generated in the reaction can be The filter box 31 is provided with an absorption liquid. When absorbing acidic gas, an alkaline solution can be used. The atomizer 32 is fixed in the filter box 31 above the absorption liquid, and the absorption liquid can be atomized into an alkaline mist. The filter box 31 is provided with an exhaust gas inlet, and the wire mesh demister 33 and the activated carbon layer 34 are sequentially distributed above the exhaust gas inlet from bottom to top. At this time, the wire mesh demister 33 can be used to separate the droplets entrained by the gas in the filter box 31, and the activated carbon can further enhance the filtering effect. The anti-corrosion fan 35 is installed at the top outlet of the filter box 31, so that the leaked gas can flow in one direction;

[0025] After the steel cylinder 4 is placed, the upper sealing door 2 is covered. The upper sealing door 2 uses a silicone sealing strip, and then the door is combined with the cabinet 1 by tightening the lock buckle 15 to seal it. At the position of each steel cylinder valve 5, we designed a set of external valve handles to lead the rotary switch of the steel cylinder valve 5 out of the cabinet 1. In this way, if there is a steel cylinder 4 leaking in the cabinet 1, we can lock the steel cylinder valve 5 from the outside (in order to distinguish between the working area and the reserve area, the external valve handle of the reserve area is not drawn), and then the device starts the waste filter device 3 to quickly filter out the corrosive gas leaking inside. The corrosive gas will not be allowed to leak out completely; the design of the external valve handle is as follows: after the steel cylinder 4 enters the cabinet 1, a set of plastic sealing bearings is installed on the sealing door 2 of the cabinet 1 at the position of each steel cylinder valve 5, and stainless steel material is used as the rotating shaft. The lower part of the rotating shaft is made into a lock that can be connected to the steel cylinder valve 5 as a whole. The rotating shaft extends upward from the bottom of the sealing door 2 through the sealing bearing, and a set of hand wheels 14 are installed on the top. The hand wheels 14 can be used to easily open or lock the valve of the steel cylinder 4, and the sealing effect of the sealing bearing will not cause the internal gas to overflow, which is safer and more convenient.

[0026] The working principle of the present invention is as follows: the present invention designs the cabinet 1 as a working area and a storage area, which not only facilitates the continuity of work, but also provides a temporary storage space for the empty cylinders 4, avoiding secondary environmental pollution caused by temporary movement, and because the gas flowing out from the gas outlet of the cylinder valve 5 can be sent out from the gas outlet of the cabinet 1 after being reduced in pressure by the pressure reducing valve 6, and once the leakage of the cylinder 4 reaches a certain amount, an alarm can be given by the gas leakage alarm 9 arranged on the cabinet 1, and the leaked gas in the cabinet 1 can be washed out from the exhaust port 13 of the cabinet 1 according to a flow direction through the exhaust filter device 3, and adsorbed and filtered by the filter body, so the sealing and protection effects are better.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A comprehensive protection system for corrosive gas cylinders, characterized in that: It comprises a cabinet, a sealing door sealed on the cabinet, and a waste filter device connected to the waste gas outlet of the cabinet; a working area and a storage area are arranged in the cabinet, and the working area and the storage area are respectively provided with at least one set of fixed positions for accommodating a steel cylinder; a steel cylinder valve is installed at the top port of the steel cylinder, and the gas outlet of the steel cylinder valve is connected to a pressure reducing valve, and the outlet of the pressure reducing valve is guided to the gas outlet of the cabinet through an air pipe; a gas leakage alarm device for detecting gas leakage in the cabinet is also connected to the cabinet; the waste filter device comprises a first solenoid valve capable of controlling the opening and closing of the air inlet on the cabinet, a second solenoid valve capable of controlling the opening and closing of the waste gas outlet on the cabinet, and a filter body capable of absorbing and filtering the leaked gas in the cabinet; The top of the cabinet is provided with a protruding cavity higher than the sealing cover, the pressure reducing valve is fixed in the protruding cavity, the regulating handle of the pressure reducing valve passes through the protruding cavity and is placed outside the cabinet, and the protruding cavity is also provided with a visible transparent window for observing the reading on the pressure gauge of the pressure reducing valve; It also includes a controller and an audible and visual alarm, wherein the controller can be electrically connected to the gas leakage alarm, the audible and visual alarm and the waste discharge filter device, and after the gas leakage alarm detects that the leakage reaches a set concentration, the controller can be used to trigger the audible and visual alarm and the waste discharge filter device to ventilate; It also includes an external valve handle that can lead the rotary switch of the cylinder valve out of the cabinet; The sealing door is provided with a silicone sealing strip that can seal with the cabinet, and the sealing door is locked and fixed to the side wall of the cabinet by a lock; The filter body comprises a filter box, an atomizer, a wire mesh demister, an activated carbon layer and an anti-corrosion fan. The filter box is wrapped with a heat preservation layer and a refrigeration layer in sequence from the outside to the inside. The filter box is filled with an absorption liquid. The atomizer is fixed in the filter box above the absorption liquid. An exhaust gas inlet is provided on the filter box. The wire mesh demister and the activated carbon layer are sequentially distributed above the exhaust gas inlet from bottom to top. The anti-corrosion fan is installed at the top outlet of the filter box. When the gas leak alarm detects that the leakage has reached the set concentration, it starts to alarm and simultaneously triggers the sound and light alarm and the exhaust filter device for ventilation through the controller. After hearing the alarm, the staff goes to the outside of the sealed cabinet and uses the designed external valve handle to lock the valve of the cylinder. After the cabinet is filtered clean, the staff investigates the cause of the leak.

2. The comprehensive protection system for corrosive gas cylinders according to claim 1 is characterized in that: The external valve handle includes a sealing bearing, a rotating shaft and a handwheel. The sealing bearing is arranged on the sealing door, and one end of the rotating shaft is fixedly connected to the rotary switch of the cylinder valve, and the other end can pass through the sealing door and be connected to the handwheel, and the rotary switch of the cylinder valve can be driven to open or close the cylinder valve by rotating the handwheel.

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