A gas cabinet

Abstract

The utility model discloses a kind of gas cabinet, the gas cabinet includes shell, air bag, counterweight disc and lifting piece, air bag is arranged in shell and air bag is suitable for passing into gas, so as to air bag store gas, counterweight disc is set above air bag, counterweight disc is used to balance weight and adjust pressure in air bag, lifting piece is set in shell and located at the bottom of shell, gas cabinet has working state and overhauling state, in working state, lifting piece shortens and lifting piece is separated from counterweight disc, in overhauling state, counterweight disc is resisted with lifting piece and lifting piece drives counterweight disc to move upward, to overhaul gas cabinet. The gas cabinet of the utility model has the advantages of simple structure, low cost, high overhauling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection and waste treatment, specifically to a gas holder. Background Technology

[0002] Prefabricated gas holders are devices used for storing gases, typically assembled on-site from multiple prefabricated components. They offer advantages such as convenient installation, short construction periods, and high mobility, and are widely used in urban gas peak shaving, industrial waste gas recovery, and biogas storage. Compared to traditional cast-in-place or welded gas holders, prefabricated gas holders are better suited to different site conditions and engineering requirements.

[0003] In related technologies, when a leak occurs at the bottom of the counterweight plate inside a modular gas holder and repairs are needed, the shell needs to be removed and a crane used to lift the counterweight plate to repair the bottom, which is troublesome and inefficient. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of this utility model offer advantages such as no need to remove the assembly tray, convenient maintenance, and high maintenance efficiency.

[0006] According to an embodiment of the present invention, a gas holder includes: a shell and an air bladder, the air bladder being disposed within the shell and adapted to allow gas to be introduced into it so that the air bladder stores the gas; a counterweight plate, the counterweight plate being disposed above the air bladder and the outer peripheral surface of the counterweight plate being spaced apart from the inner peripheral surface of the shell, the counterweight plate being used to balance the weight and adjust the pressure inside the air bladder; and a lifting member, the lifting member being disposed within the shell and located at the bottom of the shell. The gas holder has a working state and a maintenance state. In the working state, the lifting member is shortened and separated from the counterweight plate. In the maintenance state, the counterweight plate abuts against the lifting member, and the lifting member drives the counterweight plate to move upward so as to perform maintenance on the gas holder.

[0007] The gas holder of this utility model embodiment is equipped with a lifting component. The lifting component drives the counterweight plate to move upward together, which can lift the counterweight plate to a suitable position for maintenance operations. This allows maintenance personnel to inspect, maintain and replace various components inside the gas holder without having to perform cumbersome disassembly operations or use large equipment such as cranes to lift the gas holder. This simplifies the maintenance process, improves maintenance efficiency, and effectively reduces maintenance costs and time consumption.

[0008] In some embodiments, the gas holder further includes a guide rod that extends vertically and is disposed within the housing. The counterweight plate has a through hole that extends vertically through the counterweight plate, and the guide rod passes through the through hole so that the counterweight plate can move vertically along the guide rod.

[0009] In some embodiments, there are multiple lifting members, all of which are disposed within the housing and located at the lower part of the housing, so that in the maintenance state, at least one of the lifting members extends to drive the counterweight plate to move upward.

[0010] In some embodiments, a plurality of the lifting components are arranged at equal intervals along the circumference of the counterweight plate.

[0011] In some embodiments, the lifting component is a claw jack.

[0012] In some embodiments, the top of the housing is provided with an air hole to allow gas to flow into or out of the housing.

[0013] In some embodiments, there are multiple vents, all of which are located on the top of the housing and spaced apart circumferentially along the housing.

[0014] In some embodiments, the gas holder further includes a filter element disposed within the vent to filter impurities in the gas flowing into the housing.

[0015] In some embodiments, the gas holder further includes a detection element disposed within the air bladder for detecting the pressure of the gas within the air bladder.

[0016] In some embodiments, the gas holder further includes an inlet pipe and an outlet pipe, both of which are located at the bottom of the housing and communicate with the air bladder, so that the gas flows into the air bladder through the inlet pipe and flows out of the air bladder through the outlet pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the gas holder according to an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the counterweight plate and lifting component of the gas holder according to an embodiment of the present utility model.

[0019] 100. Gas holder; 1. Shell; 11. Air vent; 2. Airbag; 3. Counterweight plate; 4. Lifting component; 5. Guide rod. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] The gas holder 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0022] like Figure 1-2 As shown, the gas holder 100 according to an embodiment of the present invention includes a shell 1, an air bladder 2, a counterweight plate 3, and a lifting component 4.

[0023] The airbag 2 is disposed within the housing 1 and is adapted to be inlet with gas so that the airbag 2 can store gas. Specifically, as shown in the example... Figure 1 The structure is constructed using a cylindrical steel welded structure. The inner wall of the shell 1 is coated with an anti-corrosion coating (such as epoxy resin) to resist corrosion from gas condensate. The airbag 2 is made of high-strength rubber composite material (such as butyl rubber lining + aramid fiber reinforcement layer). The airbag 2 is located inside the shell 1 and its lower end is connected to the bottom of the shell 1. When the gas to be stored (such as natural gas, biogas, etc.) is introduced, the gas pressure will push the airbag 2 to gradually expand, so that the gas is stored inside the airbag 2.

[0024] The counterweight plate 3 is positioned above the airbag 2, with its outer circumferential surface spaced apart from the inner circumferential surface of the housing 1. The counterweight plate 3 is used to balance the weight and adjust the pressure within the airbag 2. Specifically, as shown... Figures 1-2 The counterweight plate 3 is designed as a circular cast steel component with a diameter smaller than the inner diameter of the housing 1, allowing it to move smoothly up and down within the housing 1. During operation, the counterweight plate 3 exerts a downward pressure on the airbag 2 under its own weight. This pressure balances the pressure of the gas inside the airbag 2, thus maintaining the stable shape and internal pressure of the airbag 2. When the gas pressure inside the airbag 2 changes, the weight of the counterweight plate 3 can be adjusted to keep the pressure inside the airbag 2 within a suitable range, ensuring the safe operation of the gas holder 100.

[0025] The lifting component 4 is located inside the housing 1 and at the bottom of the housing 1. The gas holder 100 has a working state and a maintenance state. In the working state, the lifting component 4 is shortened and separated from the counterweight plate 3. In the maintenance state, the counterweight plate 3 abuts against the lifting component 4, and the lifting component 4 drives the counterweight plate 3 to move upward, so as to facilitate maintenance of the gas holder 100. Specifically, as follows... Figures 1-2As shown, the lifting component 4 is located at the bottom of the housing 1. When the gas holder 100 is in operation, the lifting component 4 shortens and separates from the counterweight plate 3. At this time, the gas bladder 2 expands and contracts freely under the action of gas pressure, realizing the functions of gas storage and release. In the maintenance state, the counterweight plate 3 abuts against the lifting component 4, and the lifting component 4 drives the counterweight plate 3 to move upward, which can lift the counterweight plate 3 to a suitable height. Since the outer circumferential surface of the counterweight plate 3 is spaced apart from the inner circumferential surface of the housing 1, maintenance personnel can enter the housing 1 and enter under the counterweight plate 3 through the gap between the counterweight plate 3 and the housing 1, thereby facilitating the inspection, maintenance and replacement of various components inside the gas holder 100, improving the efficiency and safety of maintenance work.

[0026] The gas holder 100 of this embodiment is equipped with a lifting component 4, which enables convenient and efficient switching between the working state and the maintenance state of the gas holder 100. When the gas holder 100 enters the maintenance state, the lifting component 4 extends upward until it abuts against the counterweight plate 3, and drives the counterweight plate 3 to move upward together. This allows for precise control of the lifting height of the lifting component 4, which can raise the counterweight plate 3 to a suitable position for maintenance operations. This allows maintenance personnel to conveniently perform comprehensive and detailed inspection, maintenance, and replacement of various components inside the gas holder 100, such as the airbag 2, the connection parts of the shell 1, and sensors. Compared with related technologies, there is no need to perform cumbersome disassembly operations on the gas holder 100, nor is it necessary to use large equipment such as cranes to lift the gas holder 100. This simplifies the maintenance process, improves maintenance efficiency, and effectively reduces maintenance costs and time consumption.

[0027] In some embodiments, the gas holder 100 further includes a guide rod 5, which extends vertically and is disposed within the housing 1. A through hole extending vertically through the counterweight plate 3 is provided on the counterweight plate 3, and the guide rod 5 passes through the through hole to allow the counterweight plate 3 to move vertically along the guide rod 5. Specifically, as shown... Figure 1The guide rod 5 is a vertical rod extending in the vertical direction and is located inside the housing 1. The counterweight plate 3 has a through hole extending in the vertical direction. The guide rod 5 passes through the through hole of the counterweight plate 3. When the gas holder 100 is in working condition, as the gas pressure inside the gas bag 2 changes, the counterweight plate 3 will move up and down under the combined action of its own weight and gas pressure. The guide rod 5 provides a stable movement trajectory for the counterweight plate 3, allowing it to move in a straight line up and down along the guide rod 5, ensuring the stability of the internal pressure of the gas holder 100 and the safety of gas storage. When the gas holder 100 enters the maintenance state, when the lifting component 4 drives the counterweight plate 3 to move upward, the guide rod 5 can ensure that the counterweight plate 3 rises smoothly, avoiding shaking or tilting caused by the offset of the center of gravity of the counterweight plate 3 or other factors, preventing the counterweight plate 3 from colliding with other components inside the housing 1, and protecting the various structures of the gas holder 100 from damage. Meanwhile, after maintenance is completed, during the descent of the counterweight plate 3, the guide rod 5 can also guide the counterweight plate 3 back to the bottom of the housing 1, ensuring that the gas holder 100 can quickly return to normal working condition.

[0028] In some embodiments, there are multiple lifting members 4, all of which are disposed within the housing 1 and located at the lower part of the housing 1, so that in the maintenance state, at least one lifting member 4 extends to drive the counterweight plate 3 to move upward. Specifically, as Figure 1 The gas holder 100 comprises six lifting components 4, all of which are housed within the casing 1 and spaced circumferentially along the counterweight plate 3. When the gas holder 100 is in normal operation, all lifting components 4 are in a shortened state and separated from the counterweight plate 3. At this time, the air bladder 2 expands and contracts freely under internal gas pressure, achieving gas storage and release functions. When the gas holder 100 enters maintenance mode, the operator can control at least one lifting component 4 to extend according to actual needs. For example, for a simple local inspection of the gas holder 100, only one lifting component 4 needs to be extended to contact the counterweight plate 3 and apply a certain upward force, slightly raising the counterweight plate 3 to facilitate inspection and maintenance of the components on top of the air bladder 2 and below the counterweight plate 3. When a more comprehensive overhaul is required, multiple lifting components 4 can be extended simultaneously. The multiple lifting components 4 work together to provide a greater lifting force for the counterweight plate 3, raising the counterweight plate 3 to a suitable height, so that the staff can easily inspect, clean, repair or replace various key components inside the gas holder 100, such as the air bag 2, guide rod 5, and inner wall of the shell 1.

[0029] In some embodiments, a plurality of lifting members 4 are arranged at equal intervals along the circumference of the counterweight plate 3. Specifically, as shown in the figure... Figure 2As shown, when the gas holder 100 enters the maintenance state, when it is necessary to lift the counterweight plate 3, the operator can simultaneously control the extension of multiple lifting components 4. Because the lifting components 4 are evenly distributed, they can simultaneously apply upward forces to the counterweight plate 3 from different directions. These forces are balanced with each other, so that the counterweight plate 3 can remain horizontal during the lifting process without tilting or swaying. This ensures that the object rises smoothly and avoids damage or safety accidents caused by uneven force.

[0030] In some embodiments, the lifting component 4 is a claw jack. Because of its compact design and small footprint, the claw jack can be flexibly arranged within the limited space inside the gas holder 100 without interfering with the installation and operation of other components. Furthermore, the claw jack offers good stability, maintaining smooth operation during the lifting and lowering of the counterweight plate 3, preventing swaying or tilting, and effectively preventing collisions between the counterweight plate 3 and other components inside the gas holder 100. This ensures the safety of all structures within the gas holder 100 and reduces the risk of equipment damage. Therefore, using a claw jack for the lifting component 4 significantly improves maintenance efficiency and shortens maintenance time.

[0031] In some embodiments, the top of the housing 1 is provided with a vent 11 to allow gas to flow into or out of the housing 1. Specifically, as shown in the figure... Figure 1 The top of the housing 1 is provided with an air hole 11 that penetrates the housing 1. When the air bag 2 inflates, the gas inside the housing 1 flows out of the housing 1 through the air hole 11. When the air bag 2 contracts, the external gas flows into the housing 1 through the air bag 2. This effectively maintains the balance of the gas environment inside the housing 1, avoids equipment failure or performance degradation caused by abnormal gas pressure, and ensures that the equipment can operate reliably for a long time.

[0032] In some embodiments, there are multiple vents 11, all located at the top of the housing 1 and spaced apart circumferentially. Specifically, the multiple vents 11 spaced apart circumferentially allow for a more uniform distribution and flow of gas within the housing 1. If there is only one vent 11, gas may accumulate locally or flow obstructed within the housing 1, leading to differences in gas pressure and composition at different locations within the housing 1. Multiple vents 11 allow gas to enter or exit from different directions, promoting thorough mixing and uniform distribution of gas within the housing 1, ensuring the stability of the gas environment inside the housing 1. Furthermore, when a sudden change in pressure occurs inside or outside the housing 1, the multiple vents 11 can work together to quickly balance the pressure. For example, if the housing 1 is suddenly subjected to an external impact causing a momentary pressure increase, the multiple vents 11 can open simultaneously, allowing external gas to quickly enter the housing 1 for buffering, preventing damage to the housing 1 due to excessive pressure difference. Conversely, when the internal pressure of the housing 1 rises abnormally, the multiple vents 11 can also promptly expel excess gas, ensuring the safety of the housing 1.

[0033] In some embodiments, the gas holder 100 further includes a filter element (not shown in the figure), which is disposed within the vent 11 to filter impurities in the gas flowing into the housing 1. Thus, when gas enters the housing 1 through the vent 11, the filter element can effectively intercept various impurities carried in the gas, including but not limited to dust, particulate matter, oil stains, etc., preventing impurities from causing wear on the components inside the gas holder 100 and extending the service life of the gas holder 100.

[0034] In some embodiments, the gas holder 100 further includes a detection element (not shown in the figure), which is disposed inside the airbag 2 and is used to detect the pressure of the gas inside the airbag 2. Specifically, such as Figure 1 The detection element is a pressure sensor and is installed inside the airbag 2. The detection element is used to detect the pressure of the gas inside the airbag 2 to prevent excessive pressure inside the airbag 2 from causing an explosion and to ensure the safe operation of the gas holder 100.

[0035] In some embodiments, the gas holder 100 further includes an inlet pipe (not shown in the figure) and an outlet pipe (not shown in the figure). Both the inlet pipe and the outlet pipe are located at the bottom of the housing 1 and communicate with the air bladder 2, so that gas flows into the air bladder 2 through the inlet pipe and flows out of the air bladder 2 through the outlet pipe. Specifically, as shown... Figure 1 The air inlet pipe is located at the bottom of the housing 1 and on the left side of the housing 1. The air inlet pipe passes through the housing 1 and communicates with the airbag 2. A one-way valve is provided in the air inlet pipe, so that gas flows into the airbag 2 through the air inlet pipe and cannot be discharged from the air inlet pipe. The air outlet pipe is located at the bottom of the housing 1 and on the right side of the housing 1. The air outlet pipe passes through the housing 1 and communicates with the airbag 2. A one-way valve is provided, so that gas flows out of the airbag 2 through the air outlet pipe and external gas cannot flow into the airbag 2 from the air outlet pipe.

[0036] The maintenance process of the gas holder 100 according to an embodiment of the present invention will be described in detail below:

[0037] Before switching the gas holder 100 to the maintenance state, it is essential to ensure that the gas holder 100 is completely isolated from the external gas transmission pipeline, close all inlet and outlet valves, and set up clear warning signs to prevent accidental gas entry or leakage during the maintenance process and to ensure the personal safety of maintenance personnel.

[0038] During maintenance, the lifting component 4 extends until it abuts against the counterweight plate 3. Continue operating the lifting component 4 to slowly move the counterweight plate 3 upwards, raising it to a suitable height to provide sufficient operating space for maintaining the internal components of the gas holder 100. During operation, closely monitor the operation of the lifting component 4 and the rising of the counterweight plate 3 to ensure smooth and safe operation.

[0039] If a certain amount of gas remains inside the gas holder 100, it needs to be slowly discharged to a safe area using a specialized exhaust system. During the discharge process, the discharge rate must be strictly controlled to avoid generating static electricity or sparks that could cause a hazard. After the gas has been discharged, to further ensure safety, an inert gas (such as nitrogen) can be used to purge the interior of the gas holder 100, thoroughly removing any remaining flammable or harmful gases. After purging, a gas detection instrument should be used to test the gas composition inside the gas holder 100. Only after confirming that the composition meets safety standards can the interior of the gas holder 100 be entered for maintenance.

[0040] First, carefully inspect the appearance of airbag 2 for any damage, aging, cracks, etc. Minor damage can be repaired using specialized repair materials; however, more severe damage requires replacement of airbag 2. Simultaneously, check the connection between airbag 2 and the bottom of shell 1 for secure joints and proper sealing. If any looseness or poor sealing is found, tighten or replace the seals promptly. Second, check the surface of counterweight plate 3 for wear, corrosion, etc., and ensure a tight fit with the top of airbag 2. Wear or corrosion on the surface of counterweight plate 3 may affect its pressure transmission to airbag 2, requiring repair or replacement. Also, check the smooth up-and-down movement of counterweight plate 3 within shell 1 for any jamming. If necessary, clean or lubricate the inner wall of shell 1. Third, inspect the overall structure of shell 1 for deformation, cracks, etc. Pay particular attention to the welded areas of shell 1, checking for defects such as porosity 11 and slag inclusions. Repair or reinforce any problems found according to the specific circumstances. In addition, check the integrity of the anti-corrosion coating on the inner wall of housing 1. If any coating is peeling or damaged, repair it promptly to prevent corrosion of housing 1 by gas condensate. Finally, inspect other components inside gas holder 100, such as check valves, connecting pipes, and sensors. Check whether the check valves open and close smoothly and whether the seals are good; check whether there are leaks or blockages in the connecting pipes; check whether the sensors are working properly and whether the data is accurate. Repair or replace any faulty components promptly.

[0041] After the maintenance work is completed, the interior of the gas holder 100 is thoroughly cleaned to remove debris and waste generated during the maintenance process. Then, the counterweight plate 3 is slowly lowered back to its working position, ensuring that the counterweight plate 3 fits tightly with the top of the airbag 2. At the same time, the lifting component 4 is shortened to its working length to ensure the normal operation of the gas holder 100.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gas holder, characterized in that, include: A housing and an airbag, the airbag being disposed within the housing and adapted to be inlet to gas so that the airbag stores the gas; A counterweight plate is disposed above the airbag and its outer peripheral surface is spaced apart from the inner peripheral surface of the housing. The counterweight plate is used to balance the weight and adjust the pressure inside the airbag. A lifting component is disposed inside the housing and located at the bottom of the housing. The gas holder has a working state and a maintenance state. In the working state, the lifting component retracts and separates from the counterweight plate. In the maintenance state, the counterweight plate abuts against the lifting component and the lifting component drives the counterweight plate to move upward so as to perform maintenance on the gas holder.

2. The gas holder according to claim 1, characterized in that, It also includes a guide rod that extends vertically and is disposed within the housing. The counterweight plate has a through hole that extends vertically through the counterweight plate, and the guide rod passes through the through hole so that the counterweight plate can move vertically along the guide rod.

3. The gas holder according to claim 1, characterized in that, There are multiple lifting components, all of which are located inside the housing and at the bottom of the housing, so that in the maintenance state, at least one of the lifting components extends to drive the counterweight plate to move upward.

4. The gas holder according to claim 3, characterized in that, Multiple lifting components are arranged at equal intervals along the circumference of the counterweight plate.

5. The gas holder according to claim 1, characterized in that, The lifting component is a claw jack.

6. The gas holder according to claim 1, characterized in that, The top of the housing is provided with an air hole so that the gas can flow into or out of the housing.

7. The gas holder according to claim 6, characterized in that, There are multiple air holes, all of which are located on the top of the housing and spaced apart along the circumference of the housing.

8. The gas holder according to claim 6, characterized in that, It also includes a filter element disposed within the vent to filter impurities in the gas flowing into the housing.

9. The gas holder according to claim 1, characterized in that, It also includes a detection element disposed inside the airbag for detecting the pressure of the gas inside the airbag.

10. The gas holder according to claim 1, characterized in that, It also includes an air inlet pipe and an air outlet pipe, both of which are located at the bottom of the housing and are connected to the airbag, so that the gas flows into the airbag through the air inlet pipe and flows out of the airbag through the air outlet pipe.

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