Buffer tank for capacity expansion of mixer system

Abstract

The utility model discloses a buffer tank for capacity expansion of a mixer system, which comprises a main buffer tank body and a detachable capacity expansion module, and the capacity expansion module is connected in parallel with the outside of the main tank body through a quick-assembly interface to form a modularized capacity expansion structure. The capacity expansion module comprises a miniature booster tank, an air inlet of the miniature booster tank and an air inlet of the main tank are jointly connected with an air source pipeline, an air outlet is jointly connected with a flow distribution valve, and a multi-stage pore plate flow balance unit is arranged behind the valve. A fixing frame is arranged on the periphery of the main buffer tank body, and the miniature booster tanks are installed in a surrounding mode and matched with turbine pumps. The structure improves the gas storage capacity and balances the gas flow through the parallel tank bodies, is convenient to operate, and is suitable for various mixer stations.

Description

TECHNICAL FIELD

[0001] The utility model belongs to industrial gas supply equipment technical field relates to a buffer tank for capacity expansion of mixing device system, is applicable to through external modular structure promotes the gas storage and output ability of mixing device system. BACKGROUND

[0002] Mixing device system is the key equipment in industrial gas supply, and is widely used in automobile manufacturing, medical oxygen supply, chemical production and other fields, for storing and distributing mixed gas or single gas to meet production or use demand. As the core gas storage unit of mixing device system, buffer tank directly affects the gas supply capacity and stability of the system. With the expansion of industrial production scale and the growth of gas demand, the capacity of many existing buffer tanks of mixing device station has been difficult to meet the high load requirement. For example, in the automobile manufacturing industry, welding and cutting processes require continuous and stable high-flow gas, while the traditional buffer tank often causes gas supply pressure fluctuation due to insufficient gas storage, affecting production efficiency and product quality.

[0003] The capacity expansion of traditional buffer tank faces multiple challenges. The first common solution is to replace the whole mixing device system, including the buffer tank, pipeline and control unit. However, this method is costly, with the purchase and installation cost of a new set of equipment reaching hundreds of thousands of yuan, and requires production to be stopped for construction, seriously disrupting business operations. For example, a car manufacturing plant needs to stop production for several weeks to replace the mixing device system, causing significant economic losses. The second method is to replace the buffer tank of the same type, which is relatively low in cost, but only restores the original capacity and cannot achieve real capacity expansion, and the matching of the new tank body with the existing system may not be sufficient, leading to uneven gas flow distribution. For example, after replacing the buffer tank, the medical oxygen station has unstable gas supply pressure, affecting the quality of oxygen distribution. In addition, some technologies extend the service life of the buffer tank by repairing or renovating it, but only for light aging conditions and have no effect on capacity bottlenecks, and the durability of the repaired tank is difficult to guarantee.

[0004] Existing capacity expansion solutions also have limitations in structural design. Traditional buffer tanks are mostly single tank body structures with fixed capacity, which cannot be easily expanded externally to adapt to variable loads. For example, the mixing device station of a chemical plant needs to frequently switch between high and low loads, but the single tank body cannot flexibly adjust the gas storage capacity, resulting in low gas supply efficiency. Some improved solutions attempt to increase additional mixing device equipment to improve gas supply capacity, but the equipment cost is high and the floor space is large, which is not suitable for space-limited sites. For example, a small medical station cannot accommodate a second set of mixing device system due to lack of space, and can only maintain low-efficiency operation. Another technology adjusts the gas supply parameters (such as pressure or flow) of the buffer tank to achieve capacity expansion, but the effect is limited by the original capacity of the tank body. If the basic gas storage capacity is insufficient, it will be difficult to meet the demand.

[0005] In addition, the existing buffer tank expansion modification has deficiencies in implementation convenience and system stability. Traditional modification requires complex construction, such as re-welding pipelines or modifying valves, which increases the operation difficulty and safety risk. For example, when a mixing device station in an industrial park was modified, pipeline modification caused gas stop for several hours, resulting in production delay. At the same time, the expanded buffer tank often performs poorly in gas flow output stability, especially when multiple tanks are connected in parallel, uneven gas flow distribution may cause downstream equipment failure. For example, after connecting two buffer tanks in parallel in a manufacturing plant, pressure fluctuation is frequent, affecting equipment life. These problems show that the traditional single tank design has been difficult to adapt to the demand of modern industry for high efficiency and flexible expansion.

[0006] In recent years, the demand for low-cost and high-efficiency expansion solutions in the industrial gas industry is increasingly urgent. Some new technologies attempt to optimize buffer tank design, but progress is limited. For example, some solutions increase tank volume to improve gas storage capacity, but weight and floor area increase, making it difficult to adapt to existing sites. Another technology proposes a series of buffer tanks, but the gas flow resistance increases, the efficiency decreases, and the structure fails to achieve convenient expansion. In contrast, there are fewer solutions that directly achieve parallel expansion through external modular structures, and existing technologies are mostly limited to simple replacement or partial optimization. For example, traditional parallel tank bodies require custom-made pipelines and valves, which are complex to install, lack standardized design, and are difficult to quickly implement expansion.

[0007] In summary, the existing mixing device buffer tank has problems such as high cost, low efficiency, and poor flexibility in expansion modification, which is difficult to meet the diversified demand of modern industry for gas supply. Traditional single tank or series design cannot achieve convenient capacity expansion, and the gas flow stability after expansion is difficult to guarantee. Therefore, there is an urgent need for a buffer tank based on external parallel structure, which can achieve rapid expansion through modular design, while optimizing gas flow distribution and system stability. The present application is proposed in this background, aiming to provide an efficient and convenient expansion solution to meet the upgrading needs of industrial gas supply systems. Utility model content

[0008] Therefore, the utility model aims to provide a buffer tank for expansion of a mixing device system, which improves gas storage capacity through an external parallel modular structure, solving the problems of high cost, complex implementation, and insufficient stability of existing buffer tank expansion.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0010] A buffer tank for expanding a blender system, comprising a main buffer tank body and a detachable expansion module, the expansion module is connected in parallel with the main buffer tank body outside through a quick mounting interface, forming a modular expansion structure; the expansion module comprises a miniature booster tank, the gas inlet of the miniature booster tank and the gas inlet of the main buffer tank are both connected to a gas source pipeline, the gas outlet of the miniature booster tank and the gas outlet of the main buffer tank are both connected to a flow distribution valve, and the gas outlet of the flow distribution valve is provided with a flow balancing unit.

[0011] The flow balancing unit comprises a multi-stage orifice plate, and uniform flow holes with gradually decreasing hole diameters are arranged on the multi-stage orifice plate in the direction of the gas flow, for balancing the output of the parallel gas flow.

[0012] Further, a pretreatment unit is arranged on the gas source pipeline, and the pretreatment unit comprises a filter screen for removing particulate matter in the input gas.

[0013] Further, the expansion module comprises a plurality of parallel miniature booster tanks, and the miniature booster tanks are commonly connected to the main buffer tank body through a parallel pipeline.

[0014] Further, a booster unit is arranged outside the miniature booster tank, and the booster unit is a small turbine pump for supplementing the pressure.

[0015] Further, the quick mounting interface comprises a buckle type connecting ring and a sealing gasket, the buckle type connecting ring is used for quickly fixing the expansion module, and the sealing gasket is used for ensuring the air tightness.

[0016] Further, the miniature booster tank has an independent gas inlet and a gas outlet, and flow valves are arranged on the gas inlet and the gas outlet.

[0017] Further, a fixing frame is arranged on the periphery of the main buffer tank body, and the miniature booster tank is arranged on the fixing frame and surrounds the outside of the main buffer tank.

[0018] The beneficial effects of the utility model lie in:

[0019] 1. Efficient expansion, improve gas storage capacity: the utility model increases the gas storage capacity of the blender system through the external parallel miniature booster tank. Compared with the limitation that the traditional single tank body needs to be replaced as a whole, the miniature booster tank is connected in parallel with the main buffer tank body through the gas source pipeline and the flow distribution valve, and the capacity is quickly expanded.

[0020] 2. Modular design, flexible adaptation to demand: the detachable expansion module adopts a quick mounting interface, realizing quick installation and disassembly of the miniature booster tank. Compared with the traditional welding pipeline which needs several hours of construction, the buckle type interface can be connected within 10 minutes, reducing the downtime.

[0021] 3. Stable air flow, ensuring system reliability: The multi-stage orifice plate of the flow balancing unit passes through the uniform flow orifice with decreasing hole diameter, balancing the parallel air flow output of the main tank and the booster tank, effectively reducing pressure fluctuations. The flow distribution valve and the flow valve of the micro booster tank dynamically regulate the air flow ratio, ensuring that the booster tank supplements in time when the main tank flow is insufficient, improving the continuity of gas supply.

[0022] 4. Widely applicable, meeting the needs of multiple scenarios: The utility model is applicable to various mixing device systems such as automobile manufacturing, medical oxygen supply, and chemical production. Modular design and parallel structure adapt to different scale sites, such as a small medical station that can be connected to a single booster tank, and a medium-sized factory that can be configured with multiple tanks. The standardized design of the fixed frame and the turbine pump reduces production costs, and the system operates stably in an environment of-10℃ to 50℃, meeting the stringent requirements of industry and medicine.

[0023] Other advantages, objects, and features of the present utility model will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the present utility model. The objects and other advantages of the present utility model can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the purpose, technical scheme and advantages of the present utility model more clear, the preferred detailed description of the present utility model will be made below in combination with the drawings, in which:

[0025] Figure 1 The principle diagram of the buffer tank for expanding the capacity of the mixing device system in the present utility model.

[0026] Figure 2 The structural schematic diagram of the flow balancing unit in the present utility model.

[0027] Reference signs: 1-main buffer tank; 2-gas source pipeline; 3-gas supply pipeline; 4-micro booster tank; 5-flow distribution valve; 6-flow balancing unit; 7-preprocessing unit. DETAILED DESCRIPTION

[0028] The embodiments of the present utility model will be described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in the specification. The present utility model can also be implemented or applied through another different specific embodiment, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that the diagrams provided in the following examples only illustrate the basic concept of the present utility model in a schematic manner, and the following examples and features in the examples can be combined with each other without conflict.

[0029] Wherein, the drawings are only for example, the representation is only a schematic diagram, and not a physical diagram, and cannot be understood as a limitation on the utility model; in order to better illustrate the embodiments of the utility model, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0030] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear" and the like is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the position relationship in the drawings are only for example, and cannot be understood as a limitation on the utility model, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] Embodiment 1

[0032] The buffer tank for capacity expansion of the mixer system in the embodiment is applied to the welding production line of an automobile manufacturing plant, and the nitrogen supply capacity needs to be improved to support high load operation. Figure 1 As shown in the figure, the main buffer tank 1 adopts a cylindrical stainless steel tank body, the diameter is 2 m, the height is 3 m, the volume is 200 m3, and two miniature booster tanks 4 are installed around the outside through a fixed frame. Each miniature booster tank 4 is cylindrical, the volume is 50 L, the diameter is 0.4 m, the height is 0.6 m, and is arranged on the fixed frame. The fixed frame is a steel frame, and the distance between the miniature booster tank 4 and the main buffer tank 1 is 0.2 m. The miniature booster tank 4 is connected in parallel with the gas source pipeline 2 through a quick mounting interface (buckle type connection ring, silica gel sealing gasket thickness 2.5 mm), the gas inlet of the main buffer tank 1 and the independent gas inlet (flow valve) of the miniature booster tank 4 are both connected to the gas source pipeline 2, the gas source pipeline 2 is 50 mm in diameter, and a pretreatment unit 7 is arranged in the gas source pipeline 2. The pretreatment unit 7 comprises a filter screen with a filtering accuracy of 5 μm, which is used to remove particulate matter in the nitrogen.

[0033] The gas outlet of the main buffer tank 1 and the independent exhaust port (flow valve) of the miniature booster tank 4 are connected to the flow distribution valve 5 through a parallel pipeline, the flow distribution valve 5 is an electromagnetic valve, and the flow proportion is controlled. The miniature booster tank 4 is externally provided with a booster unit (small turbo pump, power 3 kW), which provides pressure support when the flow of the main buffer tank 1 is insufficient. The gas outlet of the flow distribution valve 5 is connected to the gas supply pipeline 3, which is 40 mm in diameter, and the flow balance unit 6 is arranged on the gas supply pipeline 3.

[0034] As shown in the figure, Figure 2As shown, the flow balancing unit 6 contains three-stage orifice plates with orifice diameters of 10 mm, 8 mm, and 6 mm, respectively, each orifice plate is 5 mm thick, the spacing is 10 mm, and the uniform flow holes are uniformly distributed (8 holes per layer), the parallel gas flow is balanced, and the pressure fluctuation is controlled within ±5 kPa. During operation, the main buffer tank 1 provides basic gas supply, the miniature booster tank 4 supplements the flow through the flow distribution valve 5, the total capacity is increased by 25%, and the nitrogen gas demand of 300 L per minute of the welding line is met.

[0035] Example 2

[0036] The buffer tank for capacity expansion of the blender system in this example is applied to a medical oxygen station in a hospital, and the oxygen storage needs to be increased to meet the demand during peak periods. As shown, Figure 1 The main buffer tank 1 is a stainless steel tank body with a diameter of 1.5 m, a height of 2 m, and a volume of 100 m3. Three miniature booster tanks 4 are installed on the periphery of the main buffer tank 1. Each miniature booster tank 4 has a volume of 30 L, a diameter of 0.3 m, and a height of 0.5 m. The miniature booster tanks 4 surround the main buffer tank 1 through the fixed frame with a spacing of 0.15 m. The miniature booster tanks 4 are connected in parallel to the gas source pipeline 2 through quick connectors (buckle type connection ring, silicone sealing gasket with a thickness of 2 mm). The gas inlet (with a flow valve) of the main buffer tank 1 and the miniature booster tanks 4 is connected to the gas source pipeline 2, and the gas source pipeline 2 has a diameter of 40 mm and is internally provided with a pretreatment unit 7 with a filter screen precision of 3 μm for filtering oxygen impurities.

[0037] The gas outlet (with a flow valve) of the main buffer tank 1 and the miniature booster tanks 4 is connected to the flow distribution valve 5 (solenoid valve) through a parallel pipeline. The miniature booster tanks 4 are provided with a booster unit (turbine pump with a power of 2 kW) for supplementing high-load flow. The outlet of the flow distribution valve 5 is connected to the gas supply pipeline 3 with a diameter of 30 mm, which is provided with a flow balancing unit 6.

[0038] As shown, Figure 2 The flow balancing unit 6 contains three-stage orifice plates with orifice diameters of 8 mm, 6 mm, and 4 mm, respectively, each orifice plate is 4 mm thick, the spacing is 8 mm, and there are 6 uniform flow holes per layer, which stabilizes the parallel gas flow with a pressure fluctuation of less than ±4 kPa. During operation, the main buffer tank 1 provides regular oxygen supply, and the miniature booster tanks 4 supplement oxygen through the flow distribution valve 5 and the turbine pump during peak periods (such as 8-10 am every day), the total capacity is increased by 30%, and the oxygen supply demand of 200 L per minute is met.

[0039] Finally, it should be pointed out that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all should be covered within the scope of the claims of the present application.

Claims

1. A buffer tank for expanding the capacity of a mixer system, characterized in that: The energy expansion module is connected with the main buffer tank body in parallel outside through a quick-assembly interface, and constitutes a modular energy expansion structure; the energy expansion module comprises a micro booster tank, the gas inlet of the micro booster tank and the gas inlet of the main buffer tank are both connected to a gas source pipeline, the gas outlet of the micro booster tank and the gas outlet of the main buffer tank are both connected to a flow distribution valve, and the gas outlet of the flow distribution valve is provided with a flow balancing unit; The flow balancing unit comprises a multi-stage orifice plate, the multi-stage orifice plate is provided with flow equalizing holes with diameters decreasing in sequence along the gas flow direction, and is used for balancing the output of parallel gas flows.

2. The surge tank for use in expanding a blender system of claim 1, wherein: The gas source pipeline is provided with a pretreatment unit, the pretreatment unit comprises a filter screen, and the filter screen is used for removing particulate matters in input gas.

3. The surge tank for use in expanding a blender system of claim 1, wherein: The energy expansion module comprises a plurality of parallel micro booster tanks, and the micro booster tanks are commonly connected to the main buffer tank body through a parallel pipeline.

4. The surge tank for use in expanding a blender system of claim 1, wherein: The micro booster tank is externally provided with a booster unit, the booster unit is a small turbine pump, and is used for supplementing boosting.

5. The surge tank for use in expanding a blender system of claim 1, wherein: The quick-assembly interface comprises a buckle type connecting ring and a sealing gasket, the buckle type connecting ring is used for quickly fixing the energy expansion module, and the sealing gasket is used for ensuring air tightness.

6. The surge tank for use in expanding a blender system of claim 1, wherein: The micro booster tank has independent gas inlets and gas outlets, and flow valves are arranged on the gas inlets and the gas outlets.

7. The surge tank for use in expanding a blender system of claim 1, wherein: The main buffer tank body is provided with a fixing frame on the periphery, the micro booster tank is arranged on the fixing frame, and surrounds the outside of the main buffer tank.

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