Inflammable gas distribution system

Abstract

The utility model provides an inflammable gas distribution system, and relates to the field of inflammable gas conveying. The inflammable gas distribution system comprises: a gas supply module comprising a plurality of gas supply branches arranged in parallel; the filtering module comprises a plurality of filtering branches which are arranged in parallel; the using module comprises a plurality of gas taking branches which are arranged in parallel; the gas supply module, the filtering module and the using module are sequentially connected through the main pipeline, each gas supply branch can realize independent gas supply, and when gas in a gas cylinder on a certain gas supply branch is used up, other gas supply branches are immediately switched to supply gas, so that the production continuity can be ensured; in addition, the filtering module can be used for sterilizing and filtering the conveyed gas, so that the cleanliness of the gas at a use point is ensured; the distribution system is further provided with a gas concentration detection device and a fire retardant device, the gas concentration detection device can monitor the concentration of inflammable gas in real time, and the fire retardant device can timely block open fire propagation.

Description

Technical Field

[0001] This application relates to the field of flammable gas delivery, and in particular to a flammable gas distribution system. Background Technology

[0002] Flammable gas is a commonly used gas in existing pharmaceutical companies. It is usually distributed directly to the point of use (e.g., oxygen is introduced into a petri dish) from a single gas cylinder through pipelines. However, when the gas in the cylinder is used up, the delivery of flammable gas can only be stopped to replace the cylinder, which cannot guarantee the continuity of production. In addition, the cleanliness of the gas can be affected by the long-term use of the pipeline, and flammable gas also poses safety hazards during transportation. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a flammable gas distribution system to solve the problems that existing systems for conveying flammable gases cannot guarantee the continuity of production, the cleanliness of the gas, and safety.

[0004] To achieve the above objectives, this utility model provides a flammable gas distribution system, wherein the flammable gas distribution system comprises:

[0005] The gas supply module includes multiple gas supply branches connected in parallel, each of which can supply gas independently.

[0006] The filtration module includes multiple filtration branches arranged in parallel, and each filtration branch is provided with a filter element;

[0007] The module includes multiple gas intake branches arranged in parallel, and each gas intake branch forms a point of use.

[0008] The gas supply module, filtration module, and usage module are connected sequentially via a main pipeline. The flammable gas distribution system includes a gas concentration detection device and a flame arrestor connected to the main pipeline.

[0009] Preferably, the gas supply module is connected to the first end of the main pipeline, and a safety valve is provided at the connection between the gas supply module and the main pipeline; each gas supply branch is connected to the main pipeline through the safety valve.

[0010] Preferably, the gas supply branch is sequentially provided with a gas storage tank, a first manual ball valve, a first pneumatic ball valve, and a first pressure reducing valve; the gas supply branch is also connected to a pressure transmitter capable of detecting the pressure of the gas supply branch, and the detection point of the pressure transmitter is located between the first manual ball valve and the first pneumatic ball valve.

[0011] Preferably, the pressure transmitter is also electrically or communicatively connected to the first pneumatic ball valve, and when the pressure value detected by the pressure transmitter is lower than a preset value, the corresponding first pneumatic ball valve can be closed.

[0012] Preferably, each of the filter branches is connected to the main pipeline, and each of the filter branches is provided with a first gas filter.

[0013] Preferably, a second pressure reducing valve is provided between the gas supply module and the filter module.

[0014] Preferably, the usage module is connected to the second end of the main pipeline, and the usage module is located within a clean area.

[0015] Preferably, the gas intake branch is sequentially provided with a third pressure reducing valve, a detection point of the gas concentration detection device, a second gas filter, and a usage point.

[0016] Preferably, a second pneumatic ball valve is further provided between the gas supply module and the filter module, and the gas concentration detection device is communicatively or electrically connected to the second pneumatic ball valve.

[0017] Preferably, the flame arrestor includes multiple flame arresters, and the flame arrester is disposed between the gas supply module and the filter module; each gas intake branch is respectively provided with the flame arrester.

[0018] According to the flammable gas distribution system of this utility model, multiple parallel gas supply branches are set in the gas supply module, and each gas supply branch can achieve independent gas supply. When the gas in the gas cylinder of a certain gas supply branch is exhausted, other gas supply branches can be switched immediately to supply gas, thus ensuring the continuity of production. In addition, this distribution system is equipped with a filtration module, which can sterilize and filter the gas during transportation to ensure the cleanliness of the gas at the point of use. Furthermore, this distribution system is also equipped with a gas concentration detection device and a flame arrestor. The former can monitor the concentration of flammable gas in real time, and the latter can promptly block the spread of open flame, thus effectively improving the safety of flammable gas transportation.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a flammable gas distribution system according to an embodiment of the present invention.

[0022] Icons: 1-Gas supply module; 111-First gas supply branch; 112-Second gas supply branch; 12-Gas storage tank; 13-First manual ball valve; 14-First pneumatic ball valve; 15-First pressure reducing valve; 16-Safety valve; 17-Pressure transmitter; 2-Filter module; 211-First filter branch; 212-Second filter branch; 22-First gas filter; 3-Usage module; 31-Gas intake branch; 32-Third pressure reducing valve; 33-Second gas filter; 34-Usage point; 35-Gas concentration detection device; 4-Controller; 5-Flame arrester; 6-Main pipeline; 61-Second pressure reducing valve; 62-Second pneumatic ball valve. Detailed Implementation

[0023] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0024] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0025] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0026] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0027] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0028] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0029] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0032] This utility model provides a flammable gas distribution system, such as Figure 1 As shown, the flammable gas distribution system in this embodiment includes a gas supply module 1, a filter module 2, and a usage module 3 connected sequentially via a main pipeline 6. Furthermore, the main pipeline 6 is also connected to a gas concentration monitoring device and a flame arrestor to improve the safety of the system during gas delivery. The specific structure of each of the above-mentioned parts of the flammable gas distribution system according to this invention will be described in detail below.

[0033] like Figure 1 As shown, the gas supply module 1 is connected to the first end of the main pipeline 6, and a safety valve 16 is provided at the connection between the gas supply module 1 and the main pipeline 6. Specifically, the gas supply module 1 in this embodiment includes two parallel gas supply branches (i.e., the first gas supply branch 111 and the second gas supply branch 112), both of which are connected to the main pipeline 6 through the aforementioned safety valve 16. More specifically, each gas supply branch is sequentially provided with a gas storage tank 12, a first manual ball valve 13, a first pneumatic ball valve 14, and a first pressure reducing valve 15; in addition, the gas supply branch is also connected to a pressure transmitter 17 capable of detecting its pressure, the detection point of which is located between the first manual ball valve 13 and the first pneumatic ball valve 14; the pressure transmitter 17 is also electrically or communicatively connected to the first pneumatic ball valve 14, and when the pressure value detected by the pressure transmitter 17 is lower than a preset value, the corresponding first pneumatic ball valve 14 can be closed.

[0034] In this embodiment, during the transportation of flammable gas, a gas storage tank 12 is first used to supply gas. For example, the first gas supply branch 111 is initially connected to the main pipeline 6. At this time, the first manual ball valve 13 and the first pneumatic ball valve 14 on the first gas supply branch 111 are both in the open state, while the first manual ball valve 13 of the second gas supply branch 112 is open and the first pneumatic ball valve 14 is closed. When the pressure transmitter 17 on the first gas supply branch 111 measures a pressure value lower than a preset value (e.g., 1 Bar), it means that the gas in the gas storage tank 12 of the first gas supply branch 111 has been depleted. Once depleted, the pressure transmitter 17 can transmit the corresponding numerical signal to the controller 4 (e.g., PCB board). Then, the controller 4 can control the first pneumatic ball valve 14 on the first gas supply branch 111 to close, and at the same time, it can open the first pneumatic ball valve 14 on the second gas supply branch 112 to connect the second gas supply branch 112 to the main pipeline 6. During the gas supply process of the second gas supply branch 112, the gas storage tank 12 on the first gas supply branch 111 can be replaced or replenished. In this way, the gas can be continuously supplied without interruption, so as to ensure the continuity of production.

[0035] It should be noted that the number of gas supply branches is not limited to this; for example, three gas supply branches can also be set, as long as the above-mentioned technical effects can be achieved. Furthermore, the electrical or communication connection between the pressure transmitter 17 and the first pneumatic ball valve 14 actually means that both pressure transmitters 17 are either communicationally or electrically connected to the controller 4, and the controller 4 is then electrically or communicationally connected to the two first pneumatic ball valves 14. Controlling the opening and closing of the valves based on the detection results of the sensors (in this embodiment, the pressure transmitters 17) via the PCB board or other means is a conventional technique in this field, and its control logic and principles will not be elaborated further.

[0036] In this embodiment, as Figure 1 As shown, the filtration module 2 includes two parallel filtration branches (i.e., the first filtration branch 211 and the second filtration branch 212), both of which are connected to the main pipeline 6. Each filtration branch is equipped with a first gas filter 22. Although not shown in the figure, each first gas filter 22 has valves at both its inlet and outlet ends. When the first filtration branch 211 is connected to the main pipeline 6 to filter the gas, the valves at both ends of the first gas filter 22 in the second filtration branch 212 are closed. When the first gas filter 22 in the first filtration branch 211 needs to be replaced, the valves at both ends of the first gas filter 22 in the first filtration branch 211 can be closed, and the valves at both ends of the first gas filter 22 in the second filtration branch 212 can be opened. This ensures both the continuity of production and the cleanliness of the gas used. The replacement of the above-mentioned filtration branches can be done manually or controlled by a controller 4, such as a PCB board.

[0037] Module 3 is connected to the second end of the main pipeline 6, and module 3 is located within a clean area (an essential location in pharmaceutical manufacturing workshops). In this embodiment, as... Figure 1 As shown, the module 3 includes two parallel gas intake branches 31. Each gas intake branch 31 is sequentially equipped with a third pressure reducing valve 32, a detection point of a gas concentration detection device 35, a second gas filter 33, and a usage point 34. The second gas filter 33 can further filter flammable gases, and then clean gas can be obtained through the usage point 34 to ensure production quality.

[0038] It should be noted that there is no specific limit to the number of filter branches and air intake branches 31; the number can be determined according to the actual situation to achieve the above-mentioned technical effects.

[0039] Furthermore, in this embodiment, such as Figure 1 As shown, a second pressure reducing valve 61 is installed between the gas supply module 1 and the filter module 2, thereby enabling the three-stage pressure reduction function of this distribution system through the first pressure reducing valve 15, the second pressure reducing valve 61, and the third pressure reducing valve 32. Specifically, the gas pressure in the gas storage tank 12 is as high as 20 MPa. The first pressure reducing valve 15 can reduce the gas pressure to below 2 MPa, the second pressure reducing valve 61 can reduce the gas pressure to below 1 MPa, and the third pressure reducing valve 32 can reduce the gas pressure to below 0.3 MPa, ensuring that the needs of gas storage, transportation, and use can be met simultaneously.

[0040] Furthermore, in this embodiment, a second pneumatic ball valve 62 is provided between the gas supply module 1 and the filter module 2. The gas concentration detection device 35 is communicatively or electrically connected to the second pneumatic ball valve 62. Specifically, the detection points of the gas concentration detection device 35 (e.g., multiple probes of a gas concentration detector) are located on the gas intake branch 31. The gas concentration detection device 35 is communicatively or electrically connected to the controller 4, which in turn is communicatively or electrically connected to the second pneumatic ball valve 62. Thus, when a leak occurs in the clean area, the gas concentration detection device 35 can promptly sense the concentration exceeding the standard and transmit the detection signal to the controller 4. The controller 4 then controls the second pneumatic ball valve 62 to close, thereby blocking the gas supply and effectively improving the safety of the system during use.

[0041] The safety of this system can be further improved by installing a flame arrestor. The flame arrestor includes multiple flame arresters 5, such as... Figure 1As shown, a flame arrester 5 is installed between the gas supply module 1 and the filter module 2, and each gas intake branch 31 is equipped with the flame arrester 5. Furthermore, on the main pipeline 6 between the gas supply module 1 and the filter module 2, along the direction of gas delivery, a second pressure reducing valve 61, a flame arrester 5, and a second pneumatic ball valve 62 are sequentially arranged; on each gas intake branch 31, the flame arrester 5 is located at the inlet end of the third pressure reducing valve 32.

[0042] According to the flammable gas distribution system described above, the gas supply module 1 is equipped with multiple parallel gas supply branches, each capable of independent gas supply. When the gas in the cylinder of a certain gas supply branch is depleted, other gas supply branches can be switched immediately to supply gas, thus ensuring the continuity of production. In addition, the distribution system is equipped with a filter module 2, which can sterilize and filter the gas during transportation to ensure the cleanliness of the gas at the point of use 34. Furthermore, the distribution system is also equipped with a gas concentration detection device 35 and a flame arrestor. The former can monitor the concentration of flammable gas in real time, while the latter can promptly block the spread of open flame, thus effectively improving the safety during the transportation of flammable gas.

[0043] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A flammable gas distribution system, characterized in that, The flammable gas distribution system includes: The gas supply module includes multiple gas supply branches connected in parallel, each of which can supply gas independently. The filtration module includes multiple filtration branches arranged in parallel, and each filtration branch is provided with a filter element; The module includes multiple gas intake branches arranged in parallel, and each gas intake branch forms a point of use. The gas supply module, filtration module, and usage module are connected sequentially via a main pipeline. The flammable gas distribution system includes a gas concentration detection device and a flame arrestor connected to the main pipeline.

2. The flammable gas distribution system according to claim 1, characterized in that, The gas supply module is connected to the first end of the main pipeline, and a safety valve is provided at the connection between the gas supply module and the main pipeline; each gas supply branch is connected to the main pipeline through the safety valve.

3. The flammable gas distribution system according to claim 2, characterized in that, The gas supply branch is sequentially equipped with a gas storage tank, a first manual ball valve, a first pneumatic ball valve, and a first pressure reducing valve; the gas supply branch is also connected to a pressure transmitter capable of detecting the pressure of the gas supply branch, and the detection point of the pressure transmitter is located between the first manual ball valve and the first pneumatic ball valve.

4. The flammable gas distribution system according to claim 3, characterized in that, The pressure transmitter is also electrically or communicatively connected to the first pneumatic ball valve. When the pressure value detected by the pressure transmitter is lower than a preset value, the corresponding first pneumatic ball valve can be closed.

5. The flammable gas distribution system according to claim 2, characterized in that, Each of the filter branches is connected to the main pipeline, and each of the filter branches is equipped with a first gas filter.

6. The flammable gas distribution system according to claim 2, characterized in that, A second pressure reducing valve is provided between the gas supply module and the filter module.

7. The flammable gas distribution system according to claim 2, characterized in that, The module is connected to the second end of the main pipeline and is located within a clean area.

8. The flammable gas distribution system according to claim 7, characterized in that, The gas intake branch is sequentially equipped with a third pressure reducing valve, a detection point of the gas concentration detection device, a second gas filter, and a usage point.

9. The flammable gas distribution system according to claim 8, characterized in that, A second pneumatic ball valve is also provided between the gas supply module and the filter module, and the gas concentration detection device is communicatively or electrically connected to the second pneumatic ball valve.

10. The flammable gas distribution system according to claim 8, characterized in that, The flame arrestor includes multiple flame arresters, and the flame arrester is disposed between the gas supply module and the filter module; each gas intake branch is respectively provided with the flame arrester.

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