Multi-component mixed gas product configuration system

Abstract

The utility model discloses a multi-component mixed gas product configuration system which comprises a controller, a gas filling main path, a gas storage bottle, weighing equipment and a plurality of gas filling branch paths, one ends of the gas filling branch paths are communicated with a gas supply source, the other ends of the gas filling branch paths are communicated with one end of the gas filling main path through one-way valves, and the other ends of the gas filling branch paths are communicated with the other end of the gas filling main path through one-way valves. The other end of the inflation main path is communicated with the gas storage bottle through a control valve, each inflation branch path is provided with a mass flow meter, and the weighing equipment is used for weighing the mass of the gas storage bottle; the controller is respectively connected with the plurality of mass flowmeters, the control valve, the plurality of one-way valves and the weighing equipment. The mass flow of multiple components of the mixed gas is controlled through the multiple mass flow meters, so that the gas of the multiple components is synchronously filled into the gas storage bottle according to the mass flow of the gas, it is guaranteed that the final proportion of the gas is accurate, the final product is detected according to the mass of the gas filled into the gas storage bottle, and the production efficiency is improved. Therefore, the residual gas in the pipeline is prevented from influencing the quality of products in the gas storage bottle, and the weight accuracy of the gas storage bottle products is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of methods and equipment for loading liquefied, solidified or compressed gas into pressure vessels, and in particular to a multi-component mixed gas product configuration system. Background Art

[0002] The utility model patent document with announcement number CN213272015U records a mixed gas filling device, including an air storage tank, a quantitative control box and a vacuum pump. The air storage tank, the quantitative control box and the vacuum pump are relatively independently arranged. A circulating water condenser is arranged inside the air storage tank. A main air pipe communicating with the main air pipe is arranged on the top of the air storage tank. A plurality of branch air pipes communicating with the main air pipe are arranged on the main air pipe. An air pump is fixedly installed on the air inlet end of the branch air pipe, and an air inlet pipe is fixedly connected to the input end of the air pump.

[0003] When the mixed gas filling device recorded in the above utility model patent document is used, the air pump is started first, and the air pump can absorb the filling gas through the branch air pipe and the main air pipe into the gas storage tank for filling. A metering sensor and a one-way solenoid valve are provided on the branch air pipe. The metering sensor is arranged on the side close to the air pump. The metering sensor and the one-way solenoid valve are electrically connected to the quantitative control box. The intake volume of the corresponding gas is adjusted on the quantitative control box. When the gas filling starts, the metering sensor accumulates and calculates the amount of gas and transmits a signal to the given quantitative control box. When the set intake volume is reached, the quantitative control box transmits a signal to the one-way solenoid valve, and the one-way solenoid valve automatically closes to complete the filling of the gas.

[0004] However, the metering sensors are all installed on the delivery pipeline. When the gas transported in the delivery pipeline reaches the preset gas volume, the one-way solenoid valve is closed. After the one-way solenoid valve is closed, part of the quantitative gas in the delivery pipeline will remain in the delivery pipeline, resulting in the inability to completely transport the quantitative gas to the gas storage tank, affecting the final quality and ratio of the mixed gas. Summary of the invention

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a multi-component mixed gas product configuration system that is conducive to improving the quality and accuracy of the mixed gas ratio, and the technical solutions adopted include:

[0006] A multi-component mixed gas product configuration system comprises a controller, a main charging circuit, a gas storage cylinder, a weighing device and a plurality of charging branches, wherein one end of the plurality of charging branches is respectively connected to a gas supply source, the other end of the plurality of charging branches is connected to one end of the main charging circuit via a one-way valve, the other end of the main charging circuit is connected to the gas storage cylinder via a control valve, a mass flow meter is respectively provided on each of the charging branches, and the weighing device is used to weigh the mass of the gas storage cylinder; the controller is respectively connected to the plurality of mass flow meters, the control valve, the plurality of one-way valves and the weighing device.

[0007] An embodiment of the utility model adopts a technical solution to solve its technical problem: it also includes a vacuum pump and a debris removal valve, the vacuum pump is connected to the air extraction port of the gas storage bottle through a debris removal pipeline, the debris removal pipeline is provided with a debris removal valve, and the debris removal valve is electrically connected to the controller.

[0008] A technical solution adopted by an embodiment of the utility model to solve its technical problem is: each of the inflation branches is also provided with a buffer tank, and the buffer tank is arranged between the air supply source and the mass flow meter.

[0009] A technical solution adopted by an embodiment of the utility model to solve its technical problem is: the buffer tank is a pressure tank.

[0010] A technical solution adopted by an embodiment of the utility model to solve the technical problem is: the one-way valve is a solenoid valve.

[0011] Beneficial effects of the utility model:

[0012] The present application controls the mass flow rates of multiple components of the mixed gas through multiple mass flow meters, so that the gases of the multiple components are synchronously filled into the gas cylinder according to their mass flow rates, which is beneficial to ensuring the accuracy of the final gas ratio. The present application detects the final product by the quality of the gas filled in the gas cylinder, thereby preventing the residual gas in the pipeline from affecting the quality of the product in the gas cylinder and ensuring the accuracy of the weight of the gas cylinder product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0014] Figure 1 This is a schematic diagram of the structure of the multi-component mixed gas product configuration system described in this application. DETAILED DESCRIPTION

[0015] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0016] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0017] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0019] Reference Figure 1 As shown, an embodiment of the present application is proposed. The multi-component mixed gas product configuration system described in this embodiment includes a controller, an inflation main circuit 10, a gas storage cylinder 20, a weighing device 30 and a plurality of inflation branches 40. One ends of the plurality of inflation branches 40 are respectively connected to a gas supply source 50, and the other ends of the plurality of inflation branches 40 are connected to one end of the inflation main circuit 10 through a one-way valve 60. The other end of the inflation main circuit 10 is connected to the gas storage cylinder 20 through a control valve. A mass flow meter 70 is respectively provided on each of the inflation branches 40, and the weighing device 30 is used to weigh the mass of the gas storage cylinder 20; the controller is respectively connected to the plurality of mass flow meters 70, the control valve, the plurality of one-way valves 60 and the weighing device 30, and the mass flow meters 70 and the one-way valves 60 on the plurality of inflation branches 40 are opened synchronously.

[0020] When filling the gas cylinder 20, the mass flow meter 70 and the control valve are turned on, and the one-way valve 60 on the inflation branch 40 where the corresponding gas supply source 50 is located is opened. The gas supply source 50 collects the gas to the inflation main path 10 through the corresponding inflation branch 40 and then fills it into the gas cylinder 20; the mass flow rate of the gas source on each inflation branch 40 can be controlled by controlling the opening of the mass flow meter 70, so that the different gas sources contained in the mixed gas flow into the gas cylinder 20 evenly according to the mass ratio, and then the mass of the gas cylinder 20 is weighed by the weighing device 30 until the gas filling amount in the gas cylinder 20 reaches the preset mass, and then the inflation valve of the gas cylinder is closed, and the mass flow meters 70, the one-way valve 60 and the control valve on the multiple inflation branches 40 are closed synchronously, so that the configuration of the multi-component mixed gas product can be completed, and the filled gas cylinder can be removed.

[0021] The present application combines a mass flow meter and a weighing device. There is no need to calculate the mass of each component in the gas cylinder 20 and then measure them separately. It is only necessary to determine the mass ratio of each component in the mixed gas and control the mass flow rate of multiple components of the mixed gas through multiple mass flow meters 70, so that the gases of multiple components are synchronously filled into the gas cylinder 20 according to their mass flow rates, which is conducive to ensuring the accuracy of the final gas ratio. In addition, the present application detects the final product by the mass of the gas filled in the gas cylinder 20, thereby avoiding the residual gas in the pipeline from affecting the quality of the product in the gas cylinder 20, and ensuring the accurate weight of the product in the gas cylinder 20.

[0022] Preferably, a vacuum pump 80 and a de-pneumatic valve 90 are further included. The vacuum pump 80 is connected to the air extraction port of the gas storage bottle 20 through a de-pneumatic pipeline. The de-pneumatic pipeline is provided with a de-pneumatic valve 90, and the de-pneumatic valve 90 is electrically connected to the controller.

[0023] Before filling the gas cylinder 20, the control valve, multiple one-way valves 60, and multiple mass flow meters 70 are all opened, the impurity removal valve 90 is opened, and the vacuum pump 80 is turned on. The opening of the mass flow meter 70 is controlled to control the mass flow rate of the gas source on each charging branch 40, so that the mixed multi-component mixed gas product flows out after passing through the corresponding charging branch 40, the charging main road 10 and the gas cylinder 20, so as to avoid the residual gas in the charging main road 10 and the charging branch 40 being different from the composition of the target multi-component mixed gas product and affecting the component accuracy of the final product; then the charging valve, multiple one-way valves 60, and multiple mass flow meters 70 are controlled to be closed, and the vacuum pump 80 extracts the residual gas in the gas cylinder 20 to avoid the residual gas in the gas cylinder 20 affecting the weighing of the finished product.

[0024] Preferably, each of the inflation branches 40 is further provided with a buffer tank 100 , and the buffer tank 100 is arranged between the gas supply source 50 and the mass flow meter 70 .

[0025] Specifically, the buffer tank 100 is a pressure tank, and the gas supply source 50 pre-fills the buffer tank with gas having a certain pressure. After the one-way valve 60 and the inflation valve are opened, the gas supply source 50 supplies air into the inflation bottle through the buffer tank, thereby eliminating gas pressure fluctuations on the inflation branch 40, ensuring that the gas supply source 50 can stably supply gas to the inflation main path 10 through the mass flow meter 70, and ensuring that the mass flow meter 70 can stably inject air into the gas storage bottle 20.

[0026] Specifically, the one-way valve 60 is a solenoid valve, and the opening and closing of the one-way valve 60 is controlled by the controller, which has high reliability.

[0027] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A multi-component mixed gas product configuration system, characterized in that: The invention comprises a controller, an inflation main circuit (10), a gas storage cylinder (20), a weighing device (30) and a plurality of inflation branches (40); one end of the plurality of inflation branches (40) is respectively connected to a gas supply source (50); the other end of the plurality of inflation branches (40) is connected to one end of the inflation main circuit (10) via a one-way valve (60); the other end of the inflation main circuit (10) is connected to the gas storage cylinder (20) via a control valve; a mass flow meter (70) is respectively provided on each of the inflation branches (40); the weighing device (30) is used to weigh the mass of the gas storage cylinder (20); and the controller is respectively connected to the plurality of mass flow meters (70), the control valve, the plurality of one-way valves (60) and the weighing device (30).

2. The multi-component mixed gas product configuration system according to claim 1, characterized in that: It also includes a vacuum pump (80) and a debris removal valve (90), wherein the vacuum pump (80) is connected to the air extraction port of the gas storage bottle (20) through a debris removal pipeline, and the debris removal pipeline is provided with a debris removal valve (90), and the debris removal valve (90) is electrically connected to the controller.

3. The multi-component mixed gas product configuration system according to claim 1, characterized in that: Each of the inflation branches (40) is also provided with a buffer tank (100), and the buffer tank (100) is arranged between the gas supply source (50) and the mass flow meter (70).

4. The multi-component mixed gas product configuration system according to claim 3, characterized in that: The buffer tank (100) is a pressure tank.

5. The multi-component mixed gas product configuration system according to claim 1, characterized in that: The one-way valve (60) is a solenoid valve.

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