Inflatable bed type diaphragm and internal floating roof storage tank having the same

Abstract

The present invention discloses an air-bed type diaphragm and an internal floating roof storage tank having the air-bed type diaphragm. The invention converts a fixed roof storage tank into an internal floating roof storage tank. The conversion process does not require disassembling the dome or emptying the material in the storage tank. The air-bed type diaphragm is deflated and then shrunk into a soft and shrunken state. The air-bed type diaphragm is then put into an empty fixed roof tank through the manhole of the fixed roof tank dome. The air-bed type diaphragm is then sealed and fixed with a compression flange. The air-bed type diaphragm is then inflated to prevent the gas in the storage tank from being discharged into the air. The invention also enables the closed collection of the tank material. The present invention can achieve the purpose of displacing the gas material along a single axis using a telescopic diaphragm without contacting the liquid material. The gas can be collected in a simple and energy-saving manner. The gas material can also be converted into a liquid material using the simplest physical compression method for complete recovery, thereby reducing emissions, saving energy, effectively preventing explosions and fires, and eliminating respiratory diseases.

Description

Technical Field

[0001] The present invention relates to a storage tank, and in particular to an air-bed type diaphragm capable of conveniently improving a fixed-roof storage tank and an internal floating-roof storage tank having the air-bed type diaphragm. Background Art

[0002] Existing common technology fixed roof storage tanks such as Figure 1 As shown, liquid material storage tanks are all rigid shells that, after being filled, are sealed with rigid covers. Furthermore, once filled, the liquid level and gas space inside are fixed. During material delivery or collection (large breathing), or when the temperature fluctuates, the liquid material expands upon heating and contracts upon cooling, causing its volume to change, resulting in fluctuations in the liquid level (small breathing). These large and small breathing events can produce significant emissions. Since the storage tanks are rigid shells, their volume remains constant, inevitably releasing volatile organic compounds (VOCs) into the atmosphere. Consequently, this can easily pollute the surrounding environment, causing fires and explosions, and harming the surrounding environment and people, while also resulting in material waste.

[0003] For this purpose, the patent number is: 2019224866108; the name is: Patent for zero leakage storage tanks for volatile organic liquids and gas stations, such as Figure 2 As shown, it comprises a basic tank bottom 1 and a storage tank shell 3 integrally formed on the basic tank bottom 1. The top of the storage tank shell 3 is formed with an opening 5, and the lower part of one side of the storage tank shell 3 is provided with at least one inlet and outlet 2. The storage tank shell 3 is provided with a bag-type tank diaphragm 7 covering the liquid surface of the volatile organic liquid material 11. The bottom of the bag-type tank diaphragm 7 is a floating plate structure 4 that rises and falls with the liquid surface. The upper end of the bag-type tank diaphragm 7 is fixed to the upper opening 5 of the storage tank shell 3 by tank wall sealing fixings 9. An air space 8 is formed between the bag-type tank diaphragm 7 and the storage tank shell 3, and an intake and exhaust port 10 is provided. The floating plate structure 4 is provided with an outlet pipe 6 connecting the interior of the storage tank shell 3 and the outside of the upper opening 5. The transformed zero-leakage storage tank for volatile organic liquids and gas stations can reduce emissions by more than 80%, but it still has the following disadvantages:

[0004] 1. Because the area of ​​the floating plate is large, the dome of the storage tank must be dismantled first. Only after the floating plate and diaphragm are installed can the dome of the storage tank be reinstalled. After dismantling, reinstalling it consumes a lot of financial, material and time resources.

[0005] 2. The material must be emptied first, and then ventilated for a long time before operation to prevent "poisoning accidents";

[0006] 3. The disassembly and assembly of the tank's vault will cause damage to the tank equipment or even scrapping;

[0007] 4. The diaphragm can easily fold into permanent wrinkles, which will cause friction against the inner wall of the tank and affect its service life;

[0008] 5. The expansion and contraction of the diaphragm is irregular, and some parts are even stationary. It is impossible to directly observe its movement pattern and it is impossible to arrange displacement sensors for precise control.

[0009] 6. The diaphragm adheres to the inner wall of the tank, causing adhesion and affecting the flexibility of movement.

[0010] 7. The diaphragm fits tightly against the inner wall of the tank, and friction and wear are generated when the diaphragm moves.

[0011] 8. It is impossible to establish a fixed mathematical function model when gaseous materials and liquid materials are in the same flexible space.

[0012] 9. Relying on the operator's experience to collect gaseous materials not only affects product quality and work efficiency, but also affects quality and effect.

[0013] 10. The diaphragm is in alternating contact with liquid or gaseous materials over a large area, causing corrosion.

[0014] 11. The diaphragm has a large deformation range, and the diaphragm will undergo a large amount of change in each feeding and discharging cycle.

[0015] 12. The collected gas materials are still recovered by existing technologies, such as absorption, adsorption, condensation, membrane separation, combustion, etc. These technologies are not only incomplete in collection but also cause carbon emissions. Summary of the Invention

[0016] The technical problem to be solved by the present invention is to provide an air-bed type diaphragm capable of realizing closed collection of storage tank materials and an internal floating roof storage tank having the air-bed type diaphragm.

[0017] The technical solution adopted by the present invention is: an inflatable bed-type diaphragm, including an inflatable floating plate for being placed on the surface of a liquid material and capable of rising and falling with the surface of the liquid material, the peripheral sealing of the upper end of the inflatable floating plate is fixedly connected to the bottom edge of a flexible telescopic bag-type diaphragm, the inner side of the flexible telescopic bag-type diaphragm is fixedly connected at equal intervals along the circumference with a plurality of inflatable diaphragm support rings for supporting the flexible telescopic bag-type diaphragm, the top opening of the flexible telescopic bag-type diaphragm is formed with an opening edge, and the inflatable floating plate is fixedly connected to the bottom edge of a flexible telescopic bag-type diaphragm. A gas breathing chamber is formed in the disk, and the inside of the gas breathing chamber is connected to the inflatable floating plate and the gas space outside the flexible telescopic bag-type diaphragm through an air phase communicating pipe running through the inflatable floating plate. The air ports of the inflatable floating plate and each inflatable diaphragm support ring are connected to the corresponding air guide port ends on the inflation and deflation main pipe for inflating or deflation of the inflatable floating plate and each inflatable diaphragm support ring. The total inlet and outlet ports of the inflation and deflation main pipe are located outside the opening edge of the top end of the flexible telescopic bag-type diaphragm for connecting to an external inflation device.

[0018] An internal floating roof storage tank with an inflatable bed-type diaphragm includes an internal floating roof storage tank for storing organic liquid materials, a common inlet and outlet port is provided at the lower part of the internal floating roof storage tank, a flange-type manhole is formed at the top of the internal floating roof storage tank, an inflatable bed-type diaphragm is provided in the internal floating roof storage tank, the opening edge of the top of the inflatable bed-type diaphragm is fixed to the flange-type manhole by a compression flange seal, the inflatable bed-type diaphragm fills the space in the internal floating roof storage tank except for the organic liquid material in the inflated state, the flexible telescopic bag-type diaphragm in the inflatable bed-type diaphragm contracts and stretches as the surface of the organic liquid material rises and falls, thereby driving the inflatable chassis to rise and fall as the surface of the organic liquid material rises and falls, and a flange for accommodating the organic liquid is formed between the inflatable bed-type diaphragm and the inner wall of the internal floating roof storage tank. The gas phase space of the gaseous gas volatilized by the material is connected to the gas breathing cavity of the inflatable bed-type diaphragm through the gas phase communicating pipe that passes through the inflatable floating disk in the inflatable bed-type diaphragm, so that the gaseous gas in the gas phase space can be regulated without leaking the gaseous gas. In the inflatable bed-type diaphragm: one end of the inflation and deflation main pipe connected to the external inflation and deflation device for inflating or deflation the inflatable floating disk and each inflatable diaphragm support ring, one end of the gaseous material outlet pipe connected to the external gaseous material collector for guiding the gaseous material in the gas breathing cavity to the outside, and one end of the auxiliary liquid inlet and outlet pipe connected to the external auxiliary liquid supply and drainage device for auxiliary replenishment or discharge of organic liquid material in the internal floating roof storage tank all pass through the flange-type manhole and are located on the outside of the flange-type manhole.

[0019] The present invention provides an inflatable bed-type diaphragm and an internal floating roof storage tank having the inflatable bed-type diaphragm, which is a method for converting a fixed roof storage tank into an internal floating roof storage tank. The conversion process does not require disassembling the dome or emptying the material in the storage tank. The entire conversion process can be easily completed through the manhole on the dome of the storage tank, and it can also realize a method for collecting the materials in the storage tank in a closed manner. The present invention can achieve the purpose of displacing gaseous materials along a single axis using a telescopic diaphragm without ever contacting the liquid material. It can be fully collected using simple and energy-saving technologies and methods, and can also use the simplest physical compression method to convert the gaseous material into a liquid material for full recovery, thereby reducing emissions, saving energy, effectively preventing explosions and fires, and eliminating respiratory diseases. The present invention specifically has the following advantages:

[0020] 1. During the expansion and contraction movement, only the flexible expansion and contraction diaphragm on the side participates in the axial expansion and contraction. It never contacts the liquid material or the inner wall of the tank. By observing the movement pattern of the bellows diaphragm, the displacement sensor can be used for precise control.

[0021] 2. There is no need to dismantle the vault during renovation, which has great effect and low cost.

[0022] 3. Since the operator does not touch the material during the entire transformation process, the transformation can be carried out online.

[0023] 4. Since there is no oil or gas above the floating plate of the modified internal floating roof tank, online repairs can be carried out once a problem occurs.

[0024] 5. The transformation does not damage the main body of the tank.

[0025] 6. During the transformation, the requirements for the accuracy of the shape and size of the inner wall of the tank are not high, it is suitable for a large range and easy to implement.

[0026] 7. The operating cost after the transformation is low and there are no consumables.

[0027] 8. There is a gap between the inflatable bed-type telescopic diaphragm and the inner wall of the tank, which allows for flexible movement.

[0028] 9. There is no contact between the inflatable bed-type telescopic diaphragm and the inner wall of the tank, so there is no friction and no wear.

[0029] 10. The inflatable bed-type telescopic diaphragm has regular folding and long service life.

[0030] 11. The folding rules of the inflatable bed-type telescopic diaphragm can establish a fixed mathematical function model.

[0031] 12. The gas phase space and liquid phase space of the storage tank of the inflatable bed type telescopic diaphragm are separate spaces. The material in the breathing cavity is always in the gas phase state, which is convenient for collecting gas phase materials, improves quality and work efficiency, and eliminates human factors.

[0032] 13. The retractable air-bed-type telescopic diaphragm does not contact liquid materials but only contacts gaseous materials, which greatly reduces corrosion and swelling.

[0033] 14. The inflatable bed-type telescopic diaphragm only participates in the change of axial shape and does not participate in the shape change in other directions, which facilitates the continuous improvement of its performance.

[0034] 15. What is collected is pure and extremely high gas saturated steam material without air. Therefore, it can be input into a sealed container and slightly pressurized to make the collected gas saturated steam material supersaturated and immediately turned into liquid for collection. Because the collected gaseous material does not contain oxygen, the heat generated by pressurization will not cause explosion and fire, and it is safe and reliable.

[0035] 16. Abolish existing complex technologies: absorption, adsorption, condensation, membrane separation, combustion, etc., collect waste thoroughly and eliminate carbon emissions.

[0036] 17. The gaseous material can be directly injected back into the original storage tank when it is converted into liquid material without the need for consumables.

[0037] 18. Materials themselves are resources, which can save energy and reduce emissions.

[0038] 19. Simple structure and low installation cost.

[0039] 20. Since there is no liquid material in the gas phase space, it is easy to realize automatic mode and intelligent mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a structural diagram of an internal floating roof storage tank commonly used in the prior art;

[0041] Figure 2 It is a structural schematic diagram of an improved diaphragm storage tank in the prior art;

[0042] Figure 3 Schematic diagram of the structure of the inflatable bed-type diaphragm of the present invention when it is in an inflated state;

[0043] Figure 4 Schematic diagram of the structure of the inflatable bed-type diaphragm of the present invention when it is in a non-inflated state;

[0044] Figure 5 It is a schematic diagram of the structure of the columnar inflatable bed-type diaphragm of the present invention when it is folded into a columnar shape in a non-inflated state;

[0045] Figure 6 This is a schematic structural diagram of a columnar air-bed type diaphragm installed in an internal floating roof storage tank according to the present invention;

[0046] Figure 7This is a schematic diagram of the structure of an aerated bed-type diaphragm for organic liquid materials being inflated and expanded in an internal floating roof storage tank;

[0047] Figure 8 This is a schematic diagram of the structure of the inflatable bed type diaphragm of the present invention floating upward with the organic liquid material in the internal floating roof storage tank;

[0048] Figure 9 It is a structural diagram of an internal floating roof storage tank with an inflatable bed-type diaphragm connected to an external gaseous material collector.

[0049] In the picture

[0050] 1: Base tank bottom 2: Inlet and outlet

[0051] 3: Tank shell 4: Floating plate structure

[0052] 5: Opening 6: Exhaust pipe

[0053] 7: Bag tank diaphragm 8: Air space

[0054] 9: Tank wall sealing fixture 10: Intake and exhaust port

[0055] 11: Organic liquid material 12: Inflatable floating plate

[0056] 12.1: Inflatable chassis 12.2: Inflatable rim

[0057] 12.3: Inflatable breathing chamber wall 13: Flexible telescopic bag diaphragm

[0058] 14: Inflatable diaphragm support ring 14.1: Inflatable branch pipe

[0059] 15: Opening edge 16: Gas breathing chamber

[0060] 17: Gas phase connecting pipe 18: Gas charging and discharging main pipe

[0061] 19: Gas breathing chamber diaphragm 20: Gaseous material outlet pipe

[0062] 21: Auxiliary liquid inlet and outlet pipes 22: Internal floating roof storage tank

[0063] 23: Common inlet and outlet port 24: Flange manhole

[0064] 25: Compression flange 26: Air-bed diaphragm

[0065] 27: Gas phase space 28: Detector of volatile organic compound concentration

[0066] 29: Gas compressor 30: Gaseous material collector

[0067] 31: Pressure gauge or pressure transmitter 32: Gas pressure transmitter

[0068] 33: Liquid material outlet DETAILED DESCRIPTION

[0069] The following describes in detail an air-bed type diaphragm and an internal floating roof storage tank having the air-bed type diaphragm according to the present invention in conjunction with the embodiments and the accompanying drawings.

[0070] like Figure 3 、 Figure 4 As shown, an inflatable bed-type diaphragm of the present invention includes an inflatable floating plate 12 for being placed on the surface of a liquid material and capable of rising and falling with the surface of the liquid material. The peripheral sealing of the upper end of the inflatable floating plate 12 is fixedly connected to the bottom edge of a flexible telescopic bag-type diaphragm 13, and a plurality of inflatable diaphragm support rings 14 for supporting the flexible telescopic bag-type diaphragm 13 are fixedly connected along the circumference at equal intervals on the inner side of the flexible telescopic bag-type diaphragm 13. An opening edge 15 is formed at the top opening of the flexible telescopic bag-type diaphragm 13, and a gas exhalation is formed in the inflatable floating plate 12. The suction chamber 16, the gas breathing chamber 16 is connected to the inflatable float 12 and the gas space outside the flexible telescopic bag-type diaphragm 13 through the gas phase communicating tube 17 that passes through the inflatable float 12, the air ports of the inflatable float 12 and each inflatable diaphragm support ring 14 are connected to the corresponding air guide port ends on the inflation and deflation main pipe 18 for inflating or deflation of the inflatable float 12 and each inflatable diaphragm support ring 14, the total inlet and outlet ports of the inflation and deflation main pipe 18 are located outside the opening edge 15 at the top of the flexible telescopic bag-type diaphragm 13, and are used to connect to an external inflation device.

[0071] like Figure 3As shown, the inflatable floating plate 12 includes an inflatable base 12.1 integrally formed with a connected space, a circle of upwardly protruding inflatable edges 12.2 formed around the inflatable base 12.1, and a circle of upwardly protruding inflatable breathing cavity walls 12.3 coaxially formed on the inflatable base 12.1 and located on the inner side of the inflatable edges 12.2. The top of the inflatable edges 12.2 is sealed and fixedly connected to the bottom edge of the flexible telescopic bag-type diaphragm 13, and the space enclosed by the inflatable breathing cavity walls 12.3 is covered with gas breathing cavity walls. The suction chamber diaphragm 19 is sealed and fixedly connected to the inner wall of the inflatable breathing chamber wall 12.3. The gas breathing chamber diaphragm 19, the inner wall of the inflatable breathing chamber wall 12.3, and the inflatable chassis 12.1 together form the gas breathing chamber 16. The interior of the gas breathing chamber 16 is connected to the inflatable floating plate 12 and the gas space outside the flexible telescopic bag-type diaphragm 13 via a sealed air-phase communication pipe 17 that passes through the inflatable breathing chamber wall 12.3 and the inflatable edge 12.2. The inflation and deflation main pipe 18 is connected to the air inlet and outlet at the top of the inflatable breathing chamber wall 12.3 to inflate or deflate the inflatable floating plate 12.

[0072] The gas breathing chamber 16 is connected to a gaseous material outlet pipe 20 for discharging the gaseous material in the gas breathing chamber 16 . The outlet end of the gaseous material outlet pipe 20 extends out of the top opening edge 15 of the flexible telescopic bag-type diaphragm 13 for connecting to an external gaseous material receiving device.

[0073] The inflatable float 12 is also provided with an auxiliary liquid inlet and outlet pipe 21, the lower end of which penetrates the inflatable chassis 12.1 and extends into the liquid material where the inflatable chassis 12.1 is located, and the upper end extends out of the top opening edge 15 of the flexible telescopic bag diaphragm 13 to connect to an external device.

[0074] Each of the inflatable diaphragm support rings 14 is provided with an inflation branch pipe 14.1 connected to the interior, and the air inlet and outlet of each inflation branch pipe 14.1 are respectively connected to and communicated with the inflation and deflation main pipe 18. The inflation and deflation main pipe 18 inflates or deflates the inflatable diaphragm support ring 14 through each inflation branch pipe 14.1.

[0075] When the inflatable floating plate 12 and each inflatable diaphragm support ring 14 are inflated through the inflation and deflation main pipe 18, as shown in FIG. Figure 3As shown, the inflatable float 12 is expanded and bulged, and each inflatable diaphragm support ring 14 is also expanded and bulged to support the flexible telescopic bag-type diaphragm 13 connected to the inflatable float 12, and the whole constitutes an inflatable bed-type diaphragm; when the inflatable diaphragm support ring 14 and the inflatable float 12 filled with gas are deflated through the inflation and deflation main pipe 18, as shown in FIG. Figure 4 、 Figure 5 As shown, the inflatable float 12 is in a soft and deflated state, and each inflatable diaphragm support ring 14 is also in a soft and deflated state. The flexible telescopic bag diaphragm 13 connected to the inflatable float 12 and supported by the inflatable diaphragm support ring 14 also collapses as the inflatable diaphragm support ring 14 deflates, forming a contracted state as a whole.

[0076] like Figure 6 、 Figure 7 、 Figure 8 As shown, the present invention is an internal floating roof storage tank with an inflatable bed type diaphragm, including an internal floating roof storage tank 22 for storing organic liquid materials 11, the lower part of the internal floating roof storage tank 22 is provided with a common inlet and outlet port 23, characterized in that the top of the internal floating roof storage tank 22 is formed with a flange-type manhole 24, the internal floating roof storage tank 22 is provided with an inflatable bed type diaphragm 26, the opening edge 15 of the top of the inflatable bed type diaphragm 26 is sealed and fixed on the flange by a clamping flange 25. On the disc-type manhole 24, the inflatable bed-type diaphragm 26 fills the space in the internal floating roof storage tank 22 except for the organic liquid material 11 in the inflatable state. The flexible telescopic bag-type diaphragm 13 in the inflatable bed-type diaphragm 26 contracts and expands as the surface of the organic liquid material 11 rises and falls, thereby driving the inflatable chassis 12.1 to rise and fall as the surface of the organic liquid material 11 rises and falls. A space for accommodating the organic liquid material is formed between the inflatable bed-type diaphragm 26 and the inner wall of the internal floating roof storage tank 22. The gas phase space 27 of the gas phase gas volatilized by the gas phase 11 is connected to the gas breathing cavity 16 of the inflatable bed type diaphragm 26 through the gas phase communication pipe 17 penetrating the inflatable floating disk 12 in the inflatable bed type diaphragm 26, so that the gas phase gas in the gas phase space 27 can be regulated without leaking the gas phase gas. The inflatable bed type diaphragm 26 is provided with a connection to the external charging and discharging main pipe 18 for inflating or deflating the inflatable floating disk 12 and each inflatable diaphragm support ring 14. One end of the inflation and deflation device, one end of the gaseous material outlet pipe 20 connected to the external gaseous material collector 30 for discharging the gaseous material in a saturated vapor pressure state generated by the volatilization of the organic liquid material 11 in the gas breathing chamber 16 to the outside, and one end of the auxiliary liquid inlet and outlet pipe 21 connected to the external auxiliary liquid supply and drainage device for auxiliary replenishment or discharge of the organic liquid material 11 in the internal floating roof storage tank 22 all pass through the flange manhole 24 and are located on the outside of the flange manhole 24.

[0077] like Figure 9 As shown, a detector 28 is installed above the flange-type manhole 24 to detect the concentration of volatile organic compounds emitted when the inflatable bed-type diaphragm 26 is damaged. A pressure gauge or pressure transmitter 31 is installed within the gas phase gap 27 to collect internal gas pressure. The signal output end of the pressure gauge or pressure transmitter 31 is connected to an external pressure signal acquisition device. The end of the gaseous material outlet pipe 20 connected to the external gaseous material collector 30 is connected to the gaseous material collector 30 via a gas compressor 29.

[0078] like Figure 9 As shown, the pressure of the gaseous material 34 that enters the external gaseous material collector 30 and is pressurized by the gas compressor 29 exceeds the pressure of the saturated vapor pressure, so that the gaseous material immediately changes into the organic liquid material 11 and is deposited at the bottom of the gaseous material collector 30. When the pressure in the gaseous material collector 30 drops to normal pressure, the upper part is gaseous material and the lower part is organic liquid material 11. The purpose of material recovery is achieved by taking out the organic liquid material 11 through the liquid material outlet 33. The gas compressor 29 continuously transports the pressurized gaseous material 34, and the organic liquid material 11 under normal pressure will be continuously obtained at the bottom of the gaseous material collector 30, thereby achieving the purpose of continuously recovering the organic liquid material 11.

[0079] like Figure 4 、 Figure 5 、 Figure 5 、 Figure 7 As shown, the method for installing the air-bed type diaphragm of the internal floating roof storage tank of the present invention comprises:

[0080] 1) The inflatable floating plate 12 in the inflatable bed-type diaphragm 26 is in a soft and deflated state, and each inflatable diaphragm support ring 14 is also in a soft and deflated state. The flexible telescopic bag-type diaphragm 13 supported by the inflatable diaphragm support ring 14 and connected to the inflatable floating plate 12 also collapses as the inflatable diaphragm support ring 14 is deflated, and the inflatable bed-type diaphragm 26 as a whole is in a contracted state. The contracted inflatable bed-type diaphragm 26 is tightly rolled into a column and vertically placed into the empty internal floating roof storage tank 22 through the flange-type manhole 24. The opening edge 15 at the top of the inflatable bed-type diaphragm 26 is sealed and fixed to the flange-type manhole 24 with a clamping flange 25, as shown in FIG. Figure 6 shown.

[0081] 2) Inflate the sealed and installed inflatable bed-type diaphragm 26 through the inflation and deflation main pipe 18 exposed outside the flange-type manhole 24, so that the inflatable float 12 and each inflatable diaphragm support ring 14 are inflated, the inflatable float 12 covers the surface of the organic liquid material 11 in the inner floating roof storage tank 22, the lower end of the auxiliary liquid inlet and outlet pipe 21 contacts the organic liquid material 11, and the flexible telescopic bag-type diaphragm 13 supported by the inflatable diaphragm support ring 14 stretches in the internal space of the inner floating roof storage tank 22, as shown in FIG. Figure 7 shown.

[0082] 3) The gaseous material outlet pipe 20 exposed outside the flange-type manhole 24 is connected to the gas inlet of the gaseous material collector 30 through the gas compressor 29 .

[0083] When the organic liquid material 11 enters and exits the internal floating roof storage tank 22, since each inflatable diaphragm support ring 14 and the soft flexible telescopic bag diaphragm 13 are integrally formed at equal distances, the flexible telescopic bag diaphragm 13 between two adjacent inflatable diaphragm support rings 14 can only regularly expand and contract within a very small range. This ensures that the flexible telescopic bag diaphragm 13 cannot be tightly attached to the inner wall of the storage tank, and a gap is always maintained between them, thereby reducing resistance and maintaining sufficient sensitivity, eliminating wear and extending service life. It also ensures that the side of the flexible telescopic bag diaphragm 13 will never contact the organic liquid material 11, reducing swelling and corrosion. At the same time, it also prevents the flexible telescopic bag diaphragm 13 from clogging the inlet and outlet of each hose; the flexible telescopic bag diaphragm 13 is displaced along a single axis to achieve this, and never contacts the liquid material. The two spaces are used to completely separate the gaseous material and the organic liquid material 11, so that the gaseous material collector 30 can collect all the gaseous materials, and perform gas-liquid conversion, and the converted organic liquid materials can be completely recovered, such as Figure 9 shown.

Claims

1. An air-bed type diaphragm, characterized in that: The invention relates to an inflatable floating plate (12) for being placed on the surface of a liquid material and capable of rising and falling along with the surface of the liquid material. The upper end of the inflatable floating plate (12) is fixedly connected to the bottom edge of a flexible telescopic bag-type diaphragm (13) by sealing the periphery thereof. The inner side of the flexible telescopic bag-type diaphragm (13) is fixedly connected to a plurality of inflatable diaphragm support rings (14) for supporting the flexible telescopic bag-type diaphragm (13) at equal intervals along the circumference. The top opening of the flexible telescopic bag-type diaphragm (13) is formed with an opening edge (15). A gas breathing cavity (16) is formed in the inflatable floating plate (12). The gas breathing cavity (16) is provided in the inflatable floating plate (12). The interior of the cavity (16) is connected to the gas space outside the inflatable floating plate (12) and the flexible telescopic bag-type diaphragm (13) through an air-phase communication pipe (17) penetrating the inflatable floating plate (12); the air ports of the inflatable floating plate (12) and each inflatable diaphragm support ring (14) are connected to the corresponding air guide port ends on the inflation and deflation main pipe (18) for inflating or deflation of the inflatable floating plate (12) and each inflatable diaphragm support ring (14); the total air inlet and outlet ports of the inflation and deflation main pipe (18) are located outside the opening edge (15) at the top end of the flexible telescopic bag-type diaphragm (13) for connection to an external inflation device; The inflatable floating plate (12) includes an inflatable base (12.1) integrally formed with a connected space, a circle of upwardly protruding inflatable edges (12.2) formed around the inflatable base (12.1), and a circle of upwardly protruding inflatable breathing cavity walls (12.3) coaxially formed on the inflatable base (12.1) and located on the inner side of the inflatable edges (12.2). The top of the inflatable edges (12.2) is sealed and fixedly connected to the bottom edge of the flexible telescopic bag diaphragm (13). The space enclosed by the inflatable breathing cavity walls (12.3) is covered with a gas breathing cavity diaphragm. (19), the periphery of the gas breathing chamber diaphragm (19) is fixedly connected to the inner wall of the inflatable breathing chamber wall (12.3), the gas breathing chamber diaphragm (19) and the inner wall of the inflatable breathing chamber wall (12.3) and the inflatable chassis (12.1) together constitute the gas breathing chamber (16), and the interior of the gas breathing chamber (16) is connected to the gas space outside the inflatable floating plate (12) and the flexible telescopic bag-type diaphragm (13) through the gas-phase communication pipe (17) that is sequentially sealed and passes through the inflatable breathing chamber wall (12.3) and the inflatable edge (12.2); The inflation and deflation main pipe (18) is connected to the air inlet and outlet at the top of the inflatable breathing chamber wall (12.3) to inflate or deflate the inflatable floating disk (12); The gas breathing chamber (16) is connected to a gaseous material outlet pipe (20) for discharging the gaseous material in the gas breathing chamber (16). The outlet end of the gaseous material outlet pipe (20) extends out of the top opening edge (15) of the flexible telescopic bag-type diaphragm (13) and is used to connect to an external gaseous material receiving device.

2. The air-bed type diaphragm according to claim 1, characterized in that: The inflatable floating plate (12) is further provided with an auxiliary liquid inlet and outlet pipe (21) whose lower end penetrates through the inflatable chassis (12.1) and extends into the liquid material where the inflatable chassis (12.1) is located, and whose upper end extends out of the top opening edge (15) of the flexible telescopic bag-type diaphragm (13) and is connected to an external device.

3. The air-bed type diaphragm according to claim 1, characterized in that: Each of the inflatable diaphragm support rings (14) is provided with an inflation branch pipe (14.1) connected to the interior, and the air inlet and outlet of each inflation branch pipe (14.1) are respectively connected to and communicated with the inflation and deflation main pipe (18), and the inflation and deflation main pipe (18) inflates or deflates the inflatable diaphragm support ring (14) through each inflation branch pipe (14.1).

4. The air-bed type diaphragm according to claim 1, characterized in that: When the inflatable floating plate (12) and each inflatable diaphragm support ring (14) are inflated through the inflation and deflation main pipe (18), the inflatable floating plate (12) expands and bulges, and each inflatable diaphragm support ring (14) also expands and bulges and supports the flexible telescopic bag-type diaphragm (13) connected to the inflatable floating plate (12), and the whole constitutes an inflatable bed-type diaphragm; when the inflatable floating plate (12) filled with gas is inflated through the inflation and deflation main pipe (18), the inflatable diaphragm support ring (14) expands and bulges, and the flexible telescopic bag-type diaphragm (13) connected to the inflatable floating plate (12 ... When each inflatable diaphragm support ring (14) and the inflatable float (12) are deflated, the inflatable float (12) is in a soft and deflated state, and each inflatable diaphragm support ring (14) is also in a soft and deflated state. The flexible telescopic bag-type diaphragm (13) connected to the inflatable float (12) and supported by the inflatable diaphragm support ring (14) also collapses as the inflatable diaphragm support ring (14) is deflated, forming a contracted state as a whole.

5. An internal floating roof storage tank having an inflatable bed type diaphragm according to claim 1, comprising an internal floating roof storage tank (22) for storing an organic liquid material (11), wherein a common inlet and outlet port (23) is provided at the lower portion of the internal floating roof storage tank (22), characterized in that: A flange-type manhole (24) is formed at the top of the internal floating roof storage tank (22), and an air-bed-type diaphragm (26) is provided in the internal floating roof storage tank (22). The opening edge (15) at the top of the air-bed-type diaphragm (26) is sealed and pressed and fixed on the flange-type manhole (24) by a pressing flange (25). The air-bed-type diaphragm (26) fills the space in the internal floating roof storage tank (22) except for the organic liquid material (11) in the inflated state. The flexible telescopic bag-type diaphragm (13) in the inflatable bed-type diaphragm (26) contracts and expands as the surface of the organic liquid material (11) rises and falls, thereby driving the inflatable chassis (12.1) to rise and fall as the surface of the organic liquid material (11) rises and falls. A gas phase space (27) for accommodating gaseous phase volatilized from the organic liquid material (11) is formed between the inflatable bed-type diaphragm (26) and the inner wall of the internal floating roof storage tank (22). The gas phase space (27) The gas phase communicating pipe (17) passing through the inflatable floating disk (12) in the inflatable bed-type diaphragm (26) is connected to the gas breathing chamber (16) of the inflatable bed-type diaphragm (26), so that the gas phase gas in the gas phase space (27) can be regulated without leaking the gas phase gas. The inflatable bed-type diaphragm (26) includes: a connection external to the inflatable floating disk (12) and each inflatable diaphragm support ring (14); One end of the gas filling and discharging device, one end of the gaseous material outlet pipe (20) for discharging the gaseous material in the gas breathing chamber (16) to the outside connected to the external gaseous material collector (30), and one end of the auxiliary liquid inlet and outlet pipe (21) for auxiliary replenishment or discharge of the organic liquid material (11) in the internal floating roof storage tank (22) connected to the external auxiliary liquid supply and discharge device all pass through the flange-type manhole (24) and are located outside the flange-type manhole (24).

6. The internal floating roof storage tank according to claim 5, characterized in that: A detector (28) is provided on the upper portion of the flange-type manhole (24), a pressure gauge or a pressure transmitter (31) is provided in the gas phase space (27), a signal output end of the pressure gauge or the pressure transmitter (31) is connected to an external pressure signal acquisition device, and one end of the gaseous material outlet pipe (20) connected to the external gaseous material collector (30) is connected to the gaseous material collector (30) via a gas compressor (29).

7. A method for installing the air-bed diaphragm of the internal floating roof storage tank according to claim 5, comprising: 1) The inflatable floating plate (12) in the inflatable bed-type diaphragm (26) is in a soft and deflated state, each inflatable diaphragm support ring (14) is also in a soft and deflated state, and the flexible telescopic bag-type diaphragm (13) connected to the inflatable floating plate (12) supported by the inflatable diaphragm support ring (14) also collapses as the inflatable diaphragm support ring (14) is deflated, and the inflatable bed-type diaphragm (26) as a whole forms a contracted state, and the contracted inflatable bed-type diaphragm (26) is tightly rolled into a columnar shape and vertically placed into the empty internal floating roof storage tank (22) from the flange-type manhole (24), and the opening edge (15) at the top of the inflatable bed-type diaphragm (26) is sealed and fixed to the flange-type manhole (24) with a compression flange (25); 2) inflating the sealed and installed inflatable bed-type diaphragm (26) through the inflation and deflation main pipe (18) exposed outside the flange-type manhole (24), so that the inflatable floating plate (12) and each inflatable diaphragm support ring (14) are inflated, the inflatable floating plate (12) covers the surface of the organic liquid material (11) in the inner floating roof storage tank (22), the lower end of the auxiliary liquid inlet and outlet pipe (21) contacts the organic liquid material (11), and the flexible telescopic bag-type diaphragm (13) supported by the inflatable diaphragm support ring (14) stretches in the inner space of the inner floating roof storage tank (22); 3) The gaseous material outlet pipe (20) exposed outside the flange-type manhole (24) is connected to the gas inlet of the gaseous material collector (30) through the gas compressor (29).

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