Laboratory carrier gas steel cylinder gas supply system

Abstract

The utility model relates to the technical field of gas supply equipment, in particular to a gas supply system for a carrier gas steel cylinder in a laboratory, which comprises an instrument room, a gas cylinder room, a gas pipeline, a collection end and an alarm action end, during use, the analysis instrument and the carrier gas steel cylinder are connected through the gas conveying pipeline penetrating through a wall and are arranged in different spaces, so that the use safety is ensured, and the situation that the treatment time is delayed due to too long distance, and when leakage occurs or the gas supply pressure of the carrier gas steel cylinder is insufficient is avoided, a worker is prompted through the alarm action end arranged in the instrument room; and meanwhile, the first valve and the gas detector are integrally mounted on the wall, so that the signal transmission distance and the back-and-forth walking distance and time of workers are reduced, the gas pressure state and the gas leakage state are handled in time, and normal operation of an analysis instrument is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas supply equipment, in particular to a laboratory carrier gas cylinder gas supply system. Background Art

[0002] At present, petrochemical enterprise laboratories mostly use high-pressure carrier gas cylinders to provide gas sources for analytical instruments. The gas source supplies gas to assist sample gasification, and the gas sample or the gasified sample gas is carried at a certain flow rate to reach the analytical instrument reliably and timely. By providing a stable gas environment, the stability of the sampling system and analytical instruments is protected, and different components in the mixed gas are separated.

[0003] At present, laboratory analytical instruments require multiple carrier gases. The carrier gas cylinders used for each carrier gas are set up as one in use and one in reserve. When the gas supply pressure of the currently connected carrier gas cylinder is insufficient, it is necessary to switch to the spare carrier gas cylinder for gas supply in time, and then replace the carrier gas cylinder with insufficient pressure. After the leak test is completed and the gas pressure is stable, switch back to ensure continuous supply of stable carrier gas to the analytical instrument and ensure the normal operation of the analytical instrument.

[0004] However, existing carrier gas cylinders are generally connected to analytical instruments through pipelines. The carrier gas cylinders are installed at a certain distance from the analytical instruments. It is not easy for staff to promptly learn the gas pressure status of the carrier gas cylinders. When leaks or overpressure occurs in the carrier gas cylinders, it is not easy to detect and deal with them in time, and the long-term normal operation of the analytical instruments cannot be ensured. Utility Model Content

[0005] The utility model aims to overcome the disadvantages of the prior art that it is not easy to timely know the gas pressure state and leakage state of the carrier gas cylinder, which affects the normal operation of the analytical instrument, and provides a laboratory carrier gas cylinder gas supply system.

[0006] The utility model provides a laboratory carrier gas cylinder gas supply system, comprising: an instrument room and a gas cylinder room, wherein the instrument room and the gas cylinder room are separated by a wall; a gas pipeline, one end of which is used to connect the carrier gas cylinder and the other end of which is used to connect the analytical instrument, and a first valve is provided on the gas pipeline; a collection end, comprising a pressure sensor and a gas detector, wherein the pressure sensor is arranged in the gas pipeline, the gas detector is located in the gas cylinder room, and the gas detector is linked to the first valve; an alarm action end, comprising an audible and visual alarm, located in the instrument room, and the collection end is connected to a wire of the alarm action end; a connecting pipe, which passes through the wall between the gas cylinder room and the instrument room and is used to pass the wire, and the two ends of the connecting pipe passing through the wall are respectively connected to mounting plates, the first valve and the gas detector are both located on the mounting plate, and the mounting plate is detachably connected to the wall.

[0007] The utility model provides a laboratory carrier gas cylinder gas supply system, wherein an instrument room is used for installing an analytical instrument, and a gas cylinder room is used for installing a carrier gas cylinder. When in use, the analytical instrument and the carrier gas cylinder are connected by a gas transmission pipeline passing through a wall, and the analytical instrument and the carrier gas cylinder are arranged in separate spaces, which not only ensures safety in use, but also avoids delays in disposal time due to excessive distances. When in use, gas parameters in the gas cylinder room of a limited space are collected by a gas detector arranged in the gas cylinder room, and the gas pressure of the carrier gas cylinder is collected and measured by a pressure sensor arranged on the gas transmission pipeline. When leakage occurs or the gas supply pressure of the carrier gas cylinder is insufficient, the staff is prompted by an alarm action end arranged in the instrument room, so that insufficient pressure and leakage of the carrier gas cylinder are discovered in time. At the same time, the first valve and the gas detector are integrated and installed on the wall, which reduces the signal transmission distance and the distance and time of the staff's round-trip walking, so as to realize timely disposal of the gas pressure state and leakage state, and ensure the normal operation of the analytical instrument.

[0008] Preferably, a channel is provided on the wall, a sealing stopper is provided in the channel, and the gas pipeline passes through the sealing stopper, so as to separate the instrument room and the gas cylinder room, avoid affecting the use of the analytical instrument in the event of leakage, and improve the safety of the gas supply system.

[0009] Preferably, the gas pipeline includes a main pipe and a branch pipe, the two ends of the main pipe are used to connect the carrier gas cylinders respectively, one end of the branch pipe is connected to the main pipe, and the other end is used to connect the analytical instrument, a second valve is provided between the branch pipe and any of the carrier gas cylinders, the second valve is linked to the pressure sensor, and the first valve is provided on the branch pipe. The two carrier gas cylinders are connected to the analytical instrument through a branch pipe, and the second valve is triggered in time to switch when the pressure sensor detects a parameter that exceeds a set threshold, so as to switch the carrier gas cylinders and ensure the normal operation of the analytical instrument.

[0010] Preferably, the main pipe is located in the gas cylinder room, and the branch pipe passes through the wall and then extends downward along the wall to the ground and then turns. This allows the gas pipeline to be arranged in an orderly manner, making it convenient to obtain the specific location of the carrier gas cylinder with leakage or insufficient gas pressure along the pipeline, and then to deal with it in time, reducing the handling time and ensuring the normal operation of the analytical instrument.

[0011] Preferably, the main pipe is transversely arranged on the mounting plate, the main pipe is detachably connected to the mounting plate through a clamp, and adapters are connected at both ends of the main pipe, and the adapters are used to be detachably connected to the carrier gas cylinder. The position of the main pipe is fixed, and the installation position of the carrier gas cylinder before and after replacement is determined, which facilitates accurate collection of abnormal conditions.

[0012] Preferably, the gas detector is installed on the mounting plate at a position higher than the main pipe, so that the gas detector can obtain the detection result nearby and the leakage can be discovered in time.

[0013] Preferably, several of the main pipes are arranged horizontally on the mounting plate, or several of the mounting plates are arranged on the wall, so that various types of carrier gas cylinders are arranged in an orderly manner and fixed in position, which facilitates targeted leakage detection and pressure detection, and enables abnormal situations to be quickly handled after the location is determined.

[0014] Preferably, the sound and light alarm and the carrier gas cylinder are arranged on both sides of the wall correspondingly, so that the staff in the instrument room can quickly determine the position of the carrier gas cylinder in the cylinder room according to the position of the sound and light alarm, and conveniently and quickly deal with abnormal problems.

[0015] Preferably, a plurality of the sound and light alarms are arranged in an array in the instrument room, and each of the sound and light alarms is provided with a corresponding label mark, and the label mark is used to identify the corresponding carrier gas cylinder, so that the staff in the instrument room can quickly determine the location of the carrier gas cylinder in the cylinder room according to the corresponding label mark, and conveniently and quickly deal with abnormal problems.

[0016] Preferably, the sound and light alarm includes a leakage alarm and an air pressure alarm, wherein the leakage alarm is associated with the gas detector, and the air pressure alarm is associated with the pressure sensor. The two alarms have certain differences, which facilitates the staff to quickly identify abnormal situations and deal with them as soon as possible, ensuring the continued normal operation of the gas supply system and the normal operation of the analytical instrument.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model provides a laboratory carrier gas cylinder gas supply system, which is used to install analytical instruments through the instrument room, and the gas cylinder room is used to install carrier gas cylinders. When in use, the analytical instrument and the carrier gas cylinder are connected through a gas pipeline passing through the wall, so that the analytical instrument and the carrier gas cylinder can be set in separate spaces, which not only ensures safety in use, but also avoids delays in disposal time due to excessive distance;

[0019] 2. The utility model provides a laboratory carrier gas cylinder gas supply system, which collects gas parameters in the limited space of the gas cylinder room through a gas detector arranged in the gas cylinder room, and collects the gas pressure of the carrier gas cylinder through a pressure sensor arranged on the gas pipeline. When leakage occurs or the gas supply pressure of the carrier gas cylinder is insufficient, the alarm action terminal arranged in the instrument room prompts the staff, so that the insufficient pressure and leakage of the carrier gas cylinder can be discovered in time;

[0020] 3. The utility model provides a laboratory carrier gas cylinder gas supply system. By integrating the first valve and the gas detector on the wall, it can reduce the signal transmission distance and the distance and time of the staff's round-trip walking, realize timely disposal of the gas pressure state and leakage state, and ensure the normal operation of the analytical instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural principle diagram of a laboratory carrier gas cylinder gas supply system.

[0022] Figure 2 This is a schematic structural diagram of a laboratory carrier gas cylinder supply system of Example 1.

[0023] Figure 3 This is a schematic diagram of the installation structure of the main pipe on the installation plate in Example 1.

[0024] Markings in the figure:

[0025] 1-Instrument room, 2-Gas cylinder room, 3-Wall, 31-Passage, 32-Mounting plate, 33-Connecting pipe, 4-Gas pipeline, 41-Main pipe, 42-Branch pipe, 43-First valve, 44-Second valve, 5-Collection end, 51-Pressure sensor, 52-Gas detector, 6-Alarm action end, 61-Sound and light alarm, 7-Holding part, 8-Carrier gas cylinder, 9-Analytical instrument. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0027] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding devices / components / elements are within the error / deviation range, they can still achieve their functions in the solution of the utility model.

[0029] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0030] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0031] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0032] Example 1

[0033] like Figure 1-Figure 3 As shown, a laboratory carrier gas cylinder 8 gas supply system includes an instrument room 1, a gas cylinder room 2, a gas transmission pipeline 4, a collection end 5, an alarm action end 6, a connecting pipe 33 and a mounting plate 32.

[0034] The instrument room 1 and the gas cylinder room 2 are separated by a wall 3. The instrument room 1 is used to install an analytical instrument 9, and the gas cylinder room 2 is used to install a carrier gas cylinder 8. When in use, the analytical instrument 9 and the carrier gas cylinder 8 are connected through a gas pipeline 4 passing through the wall 3; the collection end 5 includes a pressure sensor 51 and a gas detector 52, the pressure sensor 51 is arranged on the gas pipeline 4, and the gas detector 52 is located in the gas cylinder room 2; the alarm action end includes an audible and visual alarm 61, which is located in the instrument room 1, and the collection end 5 is connected to the alarm action end 6 by wires.

[0035] In an optional embodiment, the instrument room 1 and the gas cylinder room 2 can be two rooms separated by a wall 3, and the gas pipeline 4 can be a pipeline structure made of a material suitable for the carrier gas type, so that the analytical instrument 9 and the carrier gas cylinder 8 are set in different spaces, which not only ensures safety in use, but also avoids delays in handling abnormal situations due to long distances.

[0036] In an optional embodiment, a first valve 43 is provided on the gas pipeline 4. The first valve 43 can be a shut-off valve, which can realize the shutoff or connection of the gas pipeline 4, and realize the shutoff or connection of the analytical instrument 9 and the carrier gas cylinder 8. It is used to cut off the gas pipeline 4 in an emergency and ensure the safety of the gas supply system.

[0037] In an optional embodiment, the gas delivery pipeline 4 may include a main pipe 41 and a branch pipe 42, wherein both ends of the main pipe 41 are respectively connected to the carrier gas cylinder 8, and one end of the branch pipe 42 is connected to the main pipe 41 and the other end is connected to the analysis instrument 9. The two carrier gas cylinders 8 are connected to the analysis instrument 9 through one branch pipe 42, forming a one-for-one arrangement of the carrier gas cylinders 8.

[0038] In an optional embodiment, a second valve 44 is provided between the branch pipe 42 and any carrier gas cylinder 8, and the second valve 44 is linked to the pressure sensor 51. The second valve 44 can be a three-way switching valve, or it can be two shut-off valves provided on the main pipe 41 for realizing independent switching of the two carrier gas cylinders 8. When the pressure sensor 51 detects that the parameter exceeds the set threshold, the second valve 44 is promptly triggered to switch, thereby realizing the switching and conduction of the carrier gas cylinder 8 and ensuring the normal operation of the analytical instrument 9.

[0039] In an optional implementation, the first valve 43 is disposed on the branch pipe 42 , and may be located in the instrument room 1 or in the gas cylinder room 2 .

[0040] In an optional embodiment, the main pipe 41 is located in the gas cylinder room 2, and the branch pipe 42 passes through the wall 3 and then extends downward along the wall 3 to the ground and then turns. The gas pipeline 4 is arranged in an orderly manner, which facilitates the location of the carrier gas cylinder 8 with leakage or insufficient gas pressure along the pipeline, and then timely handles it, reduces the handling time, and ensures the normal operation of the analytical instrument 9.

[0041] In one or several embodiments, a channel 31 is provided on the wall 3 , a sealing stopper is provided in the channel 31 , and the gas pipeline 4 passes through the sealing stopper.

[0042] In an optional embodiment, the channel 31 is used for the gas pipeline 4 to pass through, and a foam is arranged in the channel 31 to seal the channel 31 and limit the position of the gas pipeline 4, so that the gas pipeline 4 is arranged stably.

[0043] In one or more embodiments, the gas detector 52 is linked to the first valve 43. When the gas detector 52 detects that the parameter exceeds a certain threshold, the first valve 43 is used to cut off the carrier gas cylinder 8 and the analysis instrument 9 to avoid the spread of danger.

[0044] In one or several embodiments, a connecting pipe 33 is provided on the wall 3, and the connecting pipe 33 passes through the wall 3 between the gas cylinder room 2 and the instrument room 1. The connecting pipe 33 passes through both ends of the wall 3 and is respectively connected to the mounting plates 32. The connecting pipe 33 is used for passing the wires connecting the collection end 5 and the alarm action end 6.

[0045] In an optional embodiment, the mounting plate 32 is detachably connected to the wall 3, and the first valve 43, the gas detector 52 and the main pipe 41 of the gas pipeline 4 are all located on the mounting plate 32, thereby realizing integrated installation of various structures.

[0046] In an optional embodiment, the installation position of the gas detector 52 on the installation plate 32 is higher than the main pipe 41, preferably arranged above the main pipe 41. The gas detector 52 can obtain the detection result nearby, so that the leakage can be discovered in time.

[0047] In an optional embodiment, the main pipe 41 is horizontally arranged on the mounting plate 32, and the main pipe 41 is detachably connected to the mounting plate 32 through a clamp 7. Both ends of the main pipe 41 are connected to adapters, and the adapters are used to be detachably connected to the carrier gas cylinder 8 to fix the position of the main pipe 41, thereby determining the installation position of the carrier gas cylinder 8 before and after replacement, thereby facilitating accurate collection of abnormal conditions.

[0048] In an optional embodiment, the clamping member 7 may be a pipe clamp that can be screwed onto the mounting plate 32 ; the adapter may be a union nut that can be connected to the interface of the carrier gas cylinder 8 .

[0049] In an optional embodiment, a plurality of main pipes 41 are arranged in a transverse arrangement on the mounting plate 32 .

[0050] In an optional embodiment, a plurality of mounting plates 32 are arranged on the wall 3, so that various types of carrier gas cylinders 8 are arranged in an orderly manner and fixed in position, so as to facilitate targeted leakage detection and pressure detection, and enable abnormal situations to be quickly handled after the location is determined.

[0051] In one or several embodiments, the sound and light alarm 61 and the carrier gas cylinder 8 are arranged correspondingly on both sides of the wall 3, so that the staff in the instrument room 1 can quickly determine the position of the carrier gas cylinder 8 in the gas cylinder room 2 according to the position of the sound and light alarm 61, thereby facilitating the rapid handling of abnormal problems.

[0052] In an optional embodiment, the sound and light alarm 61 can be a conventional alarm with sound and / or light, which can be combined with a conventional signal processor to perform sound / light alarm action in an abnormal state.

[0053] In one or several embodiments, a plurality of sound and light alarms 61 are arranged in an array in the instrument room 1, and each sound and light alarm 61 is provided with a corresponding label mark, which is used to identify the corresponding carrier gas cylinder 8, so that the staff in the instrument room 1 can quickly determine the position of the carrier gas cylinder 8 in the gas cylinder room 2 according to the corresponding label mark, so as to facilitate the rapid handling of abnormal problems.

[0054] In an optional implementation manner, the label identification can record relevant information such as the serial number of the carrier gas cylinder 8 and the gas sample type.

[0055] In an optional embodiment, the sound and light alarm 61 includes a leakage alarm and an air pressure alarm, the leakage alarm is associated with the gas detector 52, and the air pressure alarm is associated with the pressure sensor 51. The two alarms can select a sound and light alarm 61 with certain morphological differences, which is convenient for the staff to quickly identify abnormal situations and clarify the specific abnormal situations, so as to take corresponding measures as soon as possible to deal with them, ensure the continuous and normal operation of the gas supply system, and ensure the normal operation of the analytical instrument 9.

[0056] The present embodiment provides a laboratory carrier gas cylinder 8 gas supply system. When in use, the gas parameters in the limited space of the gas cylinder room 2 are collected by the gas detector 52 arranged in the gas cylinder room 2, and the gas pressure of the carrier gas cylinder 8 is collected by the pressure sensor 51 arranged on the gas pipeline 4. When leakage occurs or the gas supply pressure of the carrier gas cylinder 8 is insufficient, the alarm action terminal 6 arranged in the instrument room 1 is used to remind the staff, so that the insufficient pressure and leakage of the carrier gas cylinder 8 can be discovered in time. At the same time, the first valve 43 and the gas detector 52 are integrated and installed on the wall 3 to reduce the signal transmission distance and the distance and time of the staff's round-trip walking, so as to realize the timely disposal of the gas pressure state and leakage state, and ensure the normal operation of the analytical instrument 9.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laboratory carrier gas cylinder gas supply system, characterized in that: include: An instrument room (1) and a gas cylinder room (2), wherein the instrument room (1) and the gas cylinder room (2) are separated by a wall (3); A gas pipeline (4), one end of which is used to connect to a carrier gas cylinder (8) and the other end of which is used to connect to an analytical instrument (9), and a first valve (43) is provided on the gas pipeline (4); A collection end (5), comprising a pressure sensor (51) and a gas detector (52), wherein the pressure sensor (51) is arranged on the gas transmission pipeline (4), the gas detector (52) is located in the gas cylinder room (2), and the gas detector (52) is linked to the first valve (43); An alarm action end (6), including an audible and visual alarm (61), is located in the instrument room (1), and the collection end (5) is connected to the alarm action end (6) by a wire; A connecting pipe (33) passes through the wall (3) between the gas cylinder room (2) and the instrument room (1) and is used for passing the wire. The connecting pipe (33) passes through the wall (3) and is respectively connected to the mounting plate (32) at both ends. The first valve (43) and the gas detector (52) are both located on the mounting plate (32). The mounting plate (32) is detachably connected to the wall (3).

2. A laboratory carrier gas cylinder gas supply system as claimed in claim 1, characterized in that: The wall (3) is provided with a channel (31), a sealing stopper is provided in the channel (31), and the gas transmission pipeline (4) passes through the sealing stopper.

3. A laboratory carrier gas cylinder gas supply system as claimed in claim 2, characterized in that: The gas transmission pipeline (4) comprises a main pipe (41) and a branch pipe (42), the two ends of the main pipe (41) are used to connect the carrier gas cylinders (8) respectively, one end of the branch pipe (42) is connected to the main pipe (41), and the other end is used to connect to the analysis instrument (9), a second valve (44) is provided between the branch pipe (42) and any one of the carrier gas cylinders (8), and the second valve (44) is linked to the pressure sensor (51).

4. A laboratory carrier gas cylinder gas supply system as claimed in claim 3, characterized in that: The main pipe (41) is located in the gas cylinder room (2), and the branch pipe (42) passes through the wall (3), extends downward along the wall (3), and then turns to the ground.

5. A laboratory carrier gas cylinder gas supply system as claimed in claim 3, characterized in that: The main pipe (41) is transversely arranged on the mounting plate (32), and the main pipe (41) is detachably connected to the mounting plate (32) via a clamp (7). Both ends of the main pipe (41) are connected to adapters, and the adapters are used to be detachably connected to the carrier gas cylinder (8).

6. A laboratory carrier gas cylinder gas supply system as claimed in claim 5, characterized in that: The installation position of the gas detector (52) on the installation plate (32) is higher than the main pipe (41).

7. A laboratory carrier gas cylinder gas supply system as claimed in claim 5, characterized in that: A plurality of the main pipes (41) are arranged in a horizontal arrangement on the mounting plate (32), or a plurality of the mounting plates (32) are arranged in an arranged manner on the wall (3).

8. A laboratory carrier gas cylinder gas supply system as described in any one of claims 1 to 7, characterized in that: The sound and light alarm (61) and the carrier gas cylinder (8) are arranged correspondingly on both sides of the wall (3).

9. A laboratory carrier gas cylinder gas supply system as described in any one of claims 1 to 7, characterized in that: A plurality of the sound and light alarms (61) are arranged in an array in the instrument room (1), and each of the sound and light alarms (61) is provided with a corresponding label mark, and the label mark is used to identify the corresponding carrier gas cylinder (8).

10. A laboratory carrier gas cylinder gas supply system as claimed in claim 9, characterized in that: The sound and light alarm (61) comprises a leakage alarm and an air pressure alarm, the leakage alarm is associated with the gas detector (52), and the air pressure alarm is associated with the pressure sensor (51).

Images