Double-layer inner film double-film gas storage cabinet

Abstract

The utility model relates to the technical field of double-film gas storage cabinets, in particular to a double-layer inner film double-film gas storage cabinet which comprises an outer film, an outer film control system, an inner film and a bottom film, the inner film is arranged on the upper side of the bottom film, the outer film is arranged on the upper side of the inner film, the edges of the outer film, the inner film and the bottom film are stacked and fixed through pressing plates, and a storage space used for storing gas is formed between the bottom film and the inner film. The inner membrane comprises an outer-layer inner membrane and an inner-layer inner membrane, and trace odor permeating into the inner-layer inner membrane is organized to be discharged through the double-layer internal grinding structural design of the outer-layer inner membrane and the inner-layer inner membrane; by arranging the inner film balance valve, when the pressure of the inner film storage space is larger than that of the outer film interlayer, pressure can be effectively relieved, and the use safety of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-membrane gas storage cabinets, in particular to a double-layer inner membrane double-membrane gas storage cabinet. Background Art

[0002] The double-membrane gas storage cabinet is composed of an outer membrane, an outer membrane constant pressure control system, an inner membrane, an inner membrane pressure relief water seal, a bottom membrane, etc. The membrane material is a fabric coating material, which is a flexible membrane cloth composite material.

[0003] Patent Publication No.: CN205535026U discloses a double-membrane gas storage cabinet, including a cabinet body, a blast device and a pressure measuring and stabilizing device; the cabinet body includes a gas cabinet outer membrane, a gas cabinet inner membrane, a base, a gas cabinet bottom pipe, a drainage gas outlet groove and a liquid accumulation outlet pipe; the blast device includes a sandwich air inlet three-way joint, a sandwich air inlet pipe head, a sandwich air supply pipe head, a sandwich pressure measuring pipe head, an intelligent pressure controller joint, a sandwich inflation pipe, a sandwich pressure measuring pipe, a fan air supply pipe, a check valve, a movable Take over and vortex fan; the pressure measuring and stabilizing device includes an interlayer liquid level gauge, an inner layer liquid level gauge, an inner layer pressure balancing pipe, an inner layer pressure relief port, a water inlet, an interlayer pressure relief port, an interlayer pressure balancing pipe and a pressure balancing water tank; the inner layer and interlayer pressures are precisely controlled, and the inner layer and interlayer pressures can be adjusted by adjusting the liquid levels in the inner layer pressure balancing water tank and the interlayer pressure balancing water tank; the start and stop of the vortex fan are automatically controlled by an intelligent pressure controller, the later maintenance is simple, and the use and production costs are low.

[0004] When double membrane gas storage cabinets are used to store odorous gases, they will emit a certain odor. Because the double membrane gas storage cabinet material is a flexible membrane cloth material, the material itself has a certain permeability (very small). In addition, the double membrane gas storage cabinet is generally large in size and large in material area, so the permeability has become an important issue that cannot be ignored. The odor will penetrate through the inner membrane to the outer membrane. When the inner membrane takes in air and the outer membrane discharges, the odor will spread to the surrounding air. Pollute the environment and create the illusion of gas tank leakage; when the inner membrane is full, strictly control the pressure difference between the inner membrane and the outer membrane to prevent the inner membrane from being pressurized. When the outer membrane pressure is normal, the outer membrane pressure can offset the inner membrane pressure. If the outer membrane pressure is abnormal and cannot offset the inner membrane pressure, the inner membrane needs to adjust the pressure relief pressure in time. If the inner membrane cannot adjust the pressure in time, it will cause the inner membrane to be pressurized, leak, deform, or even break. Utility Model Content

[0005] (I) Technical problems to be solved: In view of the deficiencies in the prior art, the utility model provides a double-layer inner membrane double-membrane gas storage cabinet.

[0006] (II) Technical solution: To achieve the above-mentioned purpose, the utility model provides the following technical solution: a double-layer inner membrane double-membrane gas storage cabinet, comprising an outer membrane, an outer membrane control system, an inner membrane and a bottom membrane, an inner membrane is arranged on the upper side of the bottom membrane, an outer membrane is arranged on the upper side of the inner membrane, the outer membrane, the inner membrane and the edges of the bottom membrane are stacked and fixed by a pressure plate, a storage space for storing gas is formed between the bottom membrane and the inner membrane, the inner membrane comprises an outer inner membrane and an inner inner membrane, an outer membrane sandwich is formed between the outer inner membrane and the outer membrane, an inner membrane sandwich is formed between the outer inner membrane and the inner inner membrane, an inner membrane pipe is connected to the bottom of the bottom membrane, the inner membrane pipe is connected to the storage space, the inner membrane pipe is located on the outer wall on the right side of the outer membrane, an inner membrane balancing valve is connected to the inner membrane sandwich, a discharge assembly is connected to the left end face of the outer membrane, a connecting pipe is connected to one end of the connecting pipe, and an outer membrane control system is connected to one end.

[0007] In order to facilitate the pressure relief of the storage space, the utility model has the following improvements: the inner membrane balancing valve comprises an outer membrane sandwich sampling tube, an outer shell, a reset spring, a balancing valve slider and a limit block; a balancing valve slider is slidably arranged in the outer shell; the inner cavity of the outer shell is located on the left side of the balancing valve slider and is the outer membrane cavity of the balancing valve; the inner cavity of the outer shell is located on the right side of the balancing valve slider and is the inner membrane cavity of the balancing valve; an emptying port is arranged in the middle position of the top wall of the outer shell; a reset spring is connected between the left inner wall of the outer membrane cavity of the balancing valve and the balancing valve slider; a plurality of groups of limit blocks are fixedly arranged on the inner wall of the inner membrane cavity of the balancing valve on the right side of the balancing valve slider; the balancing valve slider cooperates with the emptying port; an outer membrane sandwich sampling tube is connected between the left side of the outer shell and the outer membrane; the outer membrane sandwich and the outer membrane cavity of the balancing valve are connected through the outer membrane sandwich sampling tube; a connecting port is arranged on the right side of the outer shell, and the connecting port and the inner membrane pipeline are connected through a pipeline.

[0008] In order to facilitate the real-time discharge of gas seeping out of the balancing valve slider, the utility model has the following improvements: the discharge component includes a vacuum pump and a hose, a hose is connected between the outer inner membrane and the suction end of the vacuum pump, and the vacuum pump and the inner membrane interlayer are connected through the hose.

[0009] In order to prevent gas leakage from the storage space, the utility model has the following improvements: the inner membrane pipeline is located on the right outer wall of the inner membrane balancing valve and is connected to the inner membrane water seal.

[0010] Preferably, the present invention is improved in that a conveying pipeline is connected to the middle of the bottom of the bottom membrane.

[0011] (III) Beneficial effects: Compared with the prior art, the utility model provides a double-layer inner membrane double-membrane gas storage cabinet, which has the following beneficial effects:

[0012] The double-layer inner membrane double-membrane gas storage cabinet, through the double-layer inner grinding structure design of the outer inner membrane and the inner inner membrane, can discharge the trace odor that penetrates the inner inner membrane in an organized manner.

[0013] The double-layer inner membrane double-membrane gas storage cabinet is provided with an inner membrane balancing valve, which can effectively release pressure when the pressure in the inner membrane storage space is greater than the pressure in the outer membrane interlayer, thereby increasing the safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is an enlarged schematic diagram of the structure of the inner membrane balancing valve of the utility model.

[0016] In the figure: 1. outer membrane; 2. outer inner membrane; 3. inner inner membrane; 4. bottom membrane; 5. pressure plate; 6. vacuum pump; 7. outer membrane control system; 8. inner membrane water seal; 9. outer shell; 10. reset spring; 11. balancing valve slider; 12. limit block; 13. balancing valve outer membrane cavity; 14. balancing valve inner membrane cavity; 15. inner membrane pipeline; 16. outer membrane interlayer sampling tube; 17. hose; 18. connecting pipe; 19. outer membrane interlayer; 20. inner membrane interlayer. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 A double-layer inner membrane double-membrane gas storage cabinet comprises an outer membrane 1, an outer membrane control system, an inner membrane and a bottom membrane 4. An inner membrane is arranged on the upper side of the bottom membrane 4, and an outer membrane 1 is arranged on the upper side of the inner membrane. The outer membrane 1, the inner membrane and the edges of the bottom membrane 4 are stacked and fixed by a pressing plate 5. A storage space for storing gas is formed between the bottom membrane 4 and the inner membrane. The inner membrane comprises an outer inner membrane 2 and an inner inner membrane 3. An outer membrane interlayer 19 is formed between the outer inner membrane 2 and the outer membrane 1, and an inner membrane interlayer 20 is formed between the outer inner membrane 2 and the inner inner membrane 3. An inner membrane pipe 15 is connected to the bottom of the bottom membrane 4, and the inner membrane pipe 15 is connected to the storage space. The membrane pipe 15 is located on the outer wall on the right side of the outer membrane 1 and is connected to the inner membrane balancing valve, the inner membrane interlayer 20 is connected to the discharge component, and the left end face of the outer membrane 1 is connected to a connecting pipe 18, and one end of the connecting pipe 18 is connected to the outer membrane control system. When the gas in the inner membrane becomes less, the outer membrane control system starts the built-in fan to inflate the outer membrane to stabilize the outer membrane pressure. The storage space is used to store the gas, and the outer membrane interlayer 2 is used to fill with air to balance the pressure of the inner membrane. The balancing valve can balance the pressure between the inner membrane and the outer membrane 1, and the discharge component can discharge the gas leaking from the inner membrane interlayer 20 in real time.

[0019] See also Figure 2 The above-mentioned inner membrane balancing valve can be any one type. The present application provides an embodiment, in which the inner membrane balancing valve includes an outer membrane sandwich sampling tube 16, an outer shell 9, a reset spring 10, a balancing valve slider 11 and a limit block 12. A balancing valve slider 11 is slidably arranged in the outer shell 9. The inner cavity of the outer shell 9 is located on the left side of the balancing valve slider 11, which is the balancing valve outer membrane cavity 13. The inner cavity of the outer shell 9 is located on the right side of the balancing valve slider 11, which is the balancing valve inner membrane cavity 14. An emptying port is arranged in the middle position of the top wall of the outer shell 9. A reset spring 10 is connected between the inner wall on the left side of the balancing valve outer membrane cavity 13 and the balancing valve slider 11. The inner wall of the balancing valve inner membrane cavity 14 is located on the right side of the balancing valve slider 11 and is fixedly arranged There are multiple groups of limit blocks 12, and the balance valve slider 11 cooperates with the emptying port. An outer membrane sandwich sampling tube 16 is connected between the left side of the shell 9 and the outer membrane 1. The outer membrane sandwich 19 and the balance valve outer membrane cavity 13 are connected through the outer membrane sandwich sampling tube 16. A connecting port is set on the right side of the shell 9, and the connecting port is connected to the inner membrane pipeline 15 through a pipeline. When the inner membrane pressure is basically equivalent to the outer membrane 1 pressure, the balance valve slider 11 returns to the limit block 12 under the action of the reset spring 10 and blocks the emptying port. At this time, the valve is in a closed state. When the inner membrane pressure is significantly greater than the outer membrane 1 pressure, the pressure of the balance valve inner membrane cavity 14 will also be significantly greater than the pressure of the balance valve outer membrane cavity 13. When the force generated by the pressure difference between the two is greater than the force of the reset spring 10, the balance valve slider 11 will be pushed to the side of the balance valve outer membrane cavity 13. At this time, the inner membrane cavity 14 of the balancing valve will be connected to the exhaust port and is in an exhaust state. When the inner membrane pressure returns to the same level as the outer membrane 1 pressure, the reset spring 10 pushes the balancing valve slider 11 to reset and close the balancing valve. The inner membrane balancing valve is mainly used to solve the problem of excessive pressure on the inner membrane when the outer membrane 1 pressure of the double-membrane gas storage cabinet is abnormal.

[0020] See also Figure 1 The above-mentioned discharge component can be any one. The present application provides an embodiment, in which the discharge component includes a vacuum pump 6 and a hose 17. A hose 17 is connected between the outer inner membrane 2 and the suction end of the vacuum pump 6. The vacuum pump 6 and the inner membrane interlayer 20 are connected through the hose 17. The vacuum pump 6 is started to extract the gas of the inner membrane interlayer 20 in real time, so that the inner membrane interlayer 20 is in a negative pressure state for a long time. In this way, the permeated gas of the inner layer inner membrane 3 will be drawn away by the vacuum pump 6, and will no longer penetrate into the space of the outer membrane interlayer 19. The gas extracted by the vacuum pump 6 is discharged in an organized manner. It prevents the gas in the outer membrane interlayer 19 from stinking and polluting the environment, and can effectively prevent the overflow of trace infiltration odor.

[0021] See also Figure 1 Furthermore, the inner membrane pipe 15 is located on the right outer wall of the inner membrane balancing valve and is connected to an inner membrane water seal 8, which can prevent the inner membrane pipe 15 from leaking. The inner membrane water seal 8 is a well-known device known to those skilled in the art and can be purchased directly on the market. The specific installation process will not be described in detail.

[0022] See also Figure 1 Furthermore, a delivery pipeline is connected to the middle of the bottom of the bottom membrane 4, and the gas for storage is delivered to the storage space through the delivery pipeline.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer inner membrane double-membrane gas storage cabinet, comprising an outer membrane (1), an outer membrane control system, an inner membrane and a bottom membrane (4), wherein the bottom membrane (4) is provided with an inner membrane on its upper side, and the outer membrane (1) is provided with an outer membrane on its upper side, and the edges of the outer membrane (1), the inner membrane and the bottom membrane (4) are stacked and fixed by a pressing plate (5), and a storage space for storing gas is formed between the bottom membrane (4) and the inner membrane, characterized in that: The inner membrane comprises an outer inner membrane (2) and an inner inner membrane (3), an outer membrane sandwich (19) is formed between the outer inner membrane (2) and the outer membrane (1), an inner membrane sandwich (20) is formed between the outer inner membrane (2) and the inner inner membrane (3), an inner membrane pipe (15) is connected to the bottom of the bottom membrane (4), the inner membrane pipe (15) is connected to the storage space, the inner membrane pipe (15) is located on the right outer wall of the outer membrane (1) and is connected to an inner membrane balancing valve, the inner membrane sandwich (20) is connected to a discharge component, and a connecting pipe (18) is connected to the left end face of the outer membrane (1), and one end of the connecting pipe (18) is connected to an outer membrane control system.

2. The double-layer inner membrane double-membrane gas storage cabinet according to claim 1 is characterized in that: The inner membrane balancing valve comprises an outer membrane sandwich sampling tube (16), an outer shell (9), a reset spring (10), a balancing valve slider (11) and a limit block (12). The balancing valve slider (11) is slidably arranged in the outer shell (9). The inner cavity of the outer shell (9) is located on the left side of the balancing valve slider (11) and is the balancing valve outer membrane cavity (13). The inner cavity of the outer shell (9) is located on the right side of the balancing valve slider (11) and is the balancing valve inner membrane cavity (14). An emptying port is arranged in the middle of the top wall of the outer shell (9). The inner wall on the left side of the balancing valve outer membrane cavity (13) is connected to the balancing valve slider. (11) is connected with a return spring (10), the inner wall of the inner membrane cavity (14) of the balancing valve is located on the right side of the balancing valve slider (11) and is fixedly provided with a plurality of limit blocks (12), the balancing valve slider (11) cooperates with the emptying port, an outer membrane sandwich sampling tube (16) is connected between the left side of the outer shell (9) and the outer membrane (1), the outer membrane sandwich (19) and the outer membrane cavity (13) of the balancing valve are connected through the outer membrane sandwich sampling tube (16), and a connecting port is provided on the right side of the outer shell (9), and the connecting port is connected to the inner membrane pipeline (15) through a pipeline.

3. The double-layer inner membrane double-membrane gas storage cabinet according to claim 2 is characterized in that: The discharge assembly comprises a vacuum pump (6) and a hose (17); the hose (17) is connected between the outer inner membrane (2) and the suction end of the vacuum pump (6); and the vacuum pump (6) and the inner membrane interlayer (20) are connected via the hose (17).

4. The double-layer inner membrane double-membrane gas storage cabinet according to claim 3 is characterized in that: The inner membrane pipeline (15) is located on the right outer wall of the inner membrane balancing valve and is connected to the inner membrane water seal (8).

5. The double-layer inner membrane double-membrane gas storage cabinet according to claim 4 is characterized in that: A conveying pipeline is connected in the middle of the bottom of the bottom membrane (4).

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