Cabin gas sampling tool and measurable gas cabin

Abstract

The utility model relates to the technical field of gas detection, in particular to a cabin gas sampling tool and a measurable gas cabin, the cabin gas sampling tool comprises a detection part and a storage part which are sequentially arranged from top to bottom, a detection channel is arranged in the detection part, a sealing cavity is arranged in the storage part, and the detection channel is communicated with the sealing cavity. The storage part is provided with a first connecting part detachably connected with a detection port of a cabin to be detected, one end of the detection channel is communicated with the outside, and the other end of the detection channel is communicated with the sealed cavity; wherein the measurable gas cabin comprises a cabin, a detection port and the cabin gas sampling tool, the detection port is formed in the outer wall of the cabin, an exhaust valve is arranged on the detection port, a second connecting part is arranged at the top of the detection port, and the second connecting part is detachably connected with the first connecting part; the first connecting part is arranged on the second connecting part, and then the detection pipe is inserted into the sealed cavity, so that the rapid detection of the cabin gas can be realized, the structure is simple, the operation is simple and convenient, and the gas detection difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, and more specifically, to a cabin gas sampling tool and a gas-measurable cabin. Background Art

[0002] For semi-submersible oil storage platforms, condensate oil tanks are used to store condensate oil separated during deep-sea natural gas extraction to ensure the safe operation of the platform. The condensate oil tanks need to be cleaned regularly. Condensate oil is volatile, has a low flash point and is insoluble in water. Therefore, there are great safety risks in the cleaning and inspection of condensate oil tanks. Ventilation and gas detection are required in the tanks. The existing detection method is for workers to wear respiratory protection equipment, directly lower the gas detection tube into the cabin at the hatch reserved tube, and then block the gap between the detection tube and the hatch reserved tube to detect the gas in the cabin, which is very inconvenient. Utility Model Content

[0003] The purpose of the utility model is to overcome the inconvenience of gas detection in the condensate oil tank in the prior art, and to provide a cabin gas sampling tool and a gas-measurable cabin with a simple structure, easy assembly and disassembly, and capable of realizing rapid detection of cabin gas.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A cabin gas sampling tool is provided, comprising a detection portion and a storage portion arranged in sequence from top to bottom, wherein a detection channel is provided in the detection portion, a sealed chamber is provided in the storage portion, and the sealed chamber is communicated with a detection port of the cabin to be tested, a first connection portion is provided on the storage portion and is detachably connected to the detection port of the cabin to be tested, one end of the detection channel is communicated with the outside world, and the other end is communicated with the sealed chamber.

[0006] The cabin gas sampling tool of the present invention, when it is necessary to sample the gas in the cabin or tank, installs the first connecting part on the detection port reserved in the cabin or tank, extends the detection tube connected to the external gas detection tool into the sealed chamber along the detection channel, opens the detection port, allows a small amount of gas in the cabin or tank to enter the sealed chamber, and the gas sample enters the external gas detection tool through the detection tube for detection; installs the first connecting part on the detection port reserved in the cabin, and then inserts the detection tube into the sealed chamber, so that rapid detection of cabin gas can be achieved. It has a simple structure, is easy to operate, and reduces the difficulty of gas detection.

[0007] Furthermore, the first connection portion includes a first boss and a buckle. The first boss is located on the outer side of the storage portion, and the buckle is located at the bottom of the first boss. The height of the buckle is lower than the height of the bottom opening of the sealed chamber. The buckle is used to attach the sampling tool to the cabin detection port, providing convenient assembly and disassembly and high connection strength.

[0008] Furthermore, a first sealing member is provided at the bottom of the sealed chamber. When the first connecting portion is mounted on the detection port, the detection port and the first sealing member are in close contact, thereby improving the sealing performance at the junction of the sampling tool and the detection port and preventing gas from leaking to the outside.

[0009] Furthermore, a first annular groove is provided at the bottom of the side wall of the sealed chamber, and the first sealing member is a sealing ring installed in the first annular groove. The sealing ring has excellent sealing performance, strong corrosion resistance and wear resistance, and a simple structure.

[0010] Furthermore, a second sealing member is provided in the detection channel. When the detection tube extends into the sealed chamber along the detection channel, the detection tube and the second sealing member are in close contact, preventing the gas in the sealed chamber from leaking to the outside through the gap between the detection tube and the detection channel.

[0011] Furthermore, an exhaust channel is provided in the detection section, one end of the exhaust channel is connected to the detection channel, and the other end is connected to the outside world. A third seal is also provided in the detection channel, the second seal is located below the exhaust channel, and the third seal is located above the exhaust channel. When the detection tube extends into the sealed chamber along the detection channel, the detection tube is tightly attached to the second seal and the third seal, achieving double sealing and improving the sealing effect of the gap between the detection tube and the detection channel; after completing the detection work, the cabin detection port is closed, and the external exhaust pipe connected to the exhaust channel is opened to move the detection tube upward until the bottom of the detection tube is located between the second seal and the third seal. The second seal no longer plays a sealing role, and the residual gas in the sealed chamber is affected by the pressure difference and passes through the detection channel and the exhaust channel in turn, and finally enters the exhaust pipe, completing the pressure relief and exhaust work; timely pressure relief after the detection is completed and before the detection tube is completely removed can prevent high-pressure toxic gas from spraying out of the detection channel and causing harm to the human body.

[0012] Furthermore, the detection channel includes, from bottom to top, a first channel, an exhaust chamber, and a second channel. The second sealing member is disposed within the first channel, and the third sealing member is disposed within the second channel. The exhaust chamber communicates with the exhaust channel. The first and second channels have equal diameters, and the exhaust chamber has a larger diameter than the first channel. After the detection is completed, the detection tube is moved upward until the bottom of the detection tube moves into the exhaust chamber. Because the diameter of the exhaust chamber is larger than the diameters of the first and second channels, the gas enters the exhaust chamber at a reduced flow rate and pressure, thereby accelerating the pressure relief process.

[0013] Furthermore, an exhaust pipe joint is provided on the outer wall of the detection portion, and the exhaust channel passes through the exhaust pipe joint. By providing the exhaust pipe joint, the exhaust pipe and the exhaust channel can be communicated more conveniently.

[0014] Furthermore, a second annular groove and a third annular groove are provided on the inner wall of the detection channel. The second sealing member and the third sealing member are both sealing rings, the second sealing member being mounted in the second annular groove, and the third sealing member being mounted in the third annular groove. The sealing rings have excellent sealing performance, strong corrosion and wear resistance, and a simple structure.

[0015] The present utility model also provides a gas-measurable cabin, comprising a cabin, a detection port and the cabin gas sampling tool as described above, wherein the detection port is arranged on the outer wall of the cabin and is connected to the interior of the cabin, the detection port is connected to the sealed chamber, an exhaust valve is provided on the detection port, and a second connecting part is provided on the top of the detection port, and the second connecting part is detachably connected to the first connecting part.

[0016] The gas-measurable chamber of the utility model ensures that the exhaust valve is closed when conducting detection work, installs the first connecting part on the second connecting part, extends the detection tube into the sealed chamber along the detection channel, opens the exhaust valve, and the gas in the chamber enters the sealed chamber through the detection port and then enters the detection tool through the detection tube for detection. The operation is simple and convenient.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model provides a gas sampling tool for a chamber and a gas-measurable chamber: 1. Easy to operate, reducing the difficulty of gas detection; 2. Installation via snap fasteners, convenient assembly and disassembly, and high connection strength; 3. Good sealing to prevent gas leakage; 4. Quick pressure relief before removing the detection tube to eliminate potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a cabin gas sampling tool according to the present invention;

[0020] Figure 2 This is a schematic structural diagram of the gas-measurable cabin of the present utility model;

[0021] Figure 3 This is an exploded view of the structure of the detection port of the gas-measurable chamber of the present utility model;

[0022] In the accompanying drawings: 1. detection part; 11. detection channel; 111. first channel; 112. exhaust chamber; 113. second channel; 12. second sealing member; 13. second annular groove; 14. third sealing member; 15. third annular groove; 2. storage part; 21. sealed chamber; 22. first sealing member; 23. first annular groove; 3. first connecting part; 31. first boss; 32. snap; 4. exhaust pipe joint; 41. exhaust channel; 5. detection port; 51. exhaust valve; 52. second connecting part; 521. second boss; 522. slot; 6. cabin. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] Example 1

[0026] like Figures 1 to 3 The figure shows the first embodiment of the cabin gas sampling tool of the present invention, which provides a cabin gas sampling tool, including a detection part 1 and a storage part 2 arranged in sequence from top to bottom, a detection channel 11 is provided in the detection part 1, a sealed chamber 21 with a downward opening is provided in the storage part 2, and a first connecting part 3 detachably connected to the detection port 5 of the cabin 6 to be tested is provided on the storage part 2, one end of the detection channel 11 is connected to the outside world, and the other end is connected to the sealed chamber 21.

[0027] When the cabin gas sampling tool of the present invention needs to sample the gas in the cabin 6 or the tank body, the first connecting part 3 is installed on the detection port 5 reserved in the cabin 6 or the tank body, and the detection tube connected to the external gas detection tool is extended into the sealed chamber 21 along the detection channel 11. The detection port 5 is opened to allow a small amount of gas in the cabin 6 or the tank body to enter the sealed chamber, and the gas sample enters the external gas detection tool through the detection tube for detection; the first connecting part 3 is installed on the detection port 5 reserved in the cabin 6, and then the detection tube is inserted into the sealed chamber 21, so that the gas in the cabin 6 can be quickly detected. The structure is simple, the operation is easy, and the difficulty of gas detection is reduced.

[0028] like Figure 1 As shown, the first connecting portion 3 includes a first boss 31 and a buckle 32. The first boss 31 is provided on the outer side of the storage portion 2, and the buckle 32 is provided at the bottom of the first boss 31. The height of the buckle 32 is lower than the height of the bottom opening of the sealed chamber 21. The buckle 32 is used to attach the sampling tool to the detection port 5 of the chamber 6, providing convenient assembly and disassembly and a high connection strength.

[0029] like Figure 1 As shown, a first sealing member 22 is provided at the bottom of the sealed chamber 21. When the first connecting portion 3 is mounted on the detection port 5, the detection port 5 is in close contact with the first sealing member 22, thereby improving the sealing performance at the interface between the sampling tool and the detection port 5 and preventing gas from leaking to the outside.

[0030] like Figure 1 As shown, a first annular groove 23 is provided at the bottom of the side wall of the sealing chamber 21, and the first sealing member 22 is a sealing ring, which is installed in the first annular groove 23. The sealing ring has excellent sealing performance, strong corrosion resistance and wear resistance, and a simple structure.

[0031] The working principle of the cabin gas sampling tool of this embodiment is as follows:

[0032] When it is necessary to take gas samples from the cabin 6 or the tank body, the first connecting part 3 is installed on the detection port 5 reserved in the cabin 6 or the tank body through the buckle 32. The detection port 5 is tightly attached to and squeezes the first sealing member 22 to achieve sealing at the junction of the sampling tool and the detection port 5. The detection tube connected to the external gas detection tool is extended into the sealed chamber 21 along the detection channel 11, and the detection port 5 is opened to allow a small amount of gas in the cabin 6 or the tank body to enter the sealed chamber 21. The gas sample enters the external gas detection tool through the detection tube for detection; the first connecting part 3 is installed on the detection port 5 reserved in the cabin 6, and then the detection tube is inserted into the sealed chamber 21, so that rapid detection of the gas in the cabin 6 can be achieved.

[0033] Example 2

[0034] This embodiment is the second embodiment of the cabin gas sampling tool of the present invention. This embodiment is similar to the first embodiment, except that a second sealing member 12 is provided within the detection channel 11. When the detection tube extends along the detection channel 11 into the sealed chamber 21, the detection tube and the second sealing member 12 are in close contact, preventing the gas in the sealed chamber 21 from leaking to the outside through the gap between the detection tube and the detection channel 11.

[0035] like Figure 1 As shown, an exhaust channel 41 is also provided in the detection part 1, one end of the exhaust channel 41 is connected to the detection channel 11, and the other end is connected to the outside world. A third sealing member 14 is also provided in the detection channel 11, the second sealing member 12 is located below the exhaust channel 41, and the third sealing member 14 is located above the exhaust channel 41. When the detection tube is extended into the sealed chamber 21 along the detection channel 11, the detection tube is in close contact with the second seal 12 and the third seal 14 to achieve double sealing, thereby improving the sealing effect of the gap between the detection tube and the detection channel 11; after completing the detection work, the detection port 5 of the cabin 6 is closed, and the external exhaust pipe connected to the exhaust channel 41 is opened to move the detection tube upward until the bottom of the detection tube is located between the second seal 12 and the third seal 14. The second seal 12 no longer plays a sealing role, and the residual gas in the sealed chamber 21 is affected by the pressure difference, passes through the detection channel 11 and the exhaust channel 41 in turn, and finally enters the exhaust pipe, completing the pressure relief and exhaust work; timely pressure relief after the detection is completed and before the detection tube is completely removed can avoid high-pressure toxic gas from being sprayed out of the detection channel 11 and causing harm to the human body.

[0036] like Figure 1 As shown, the detection channel 11 includes a first channel 111, an exhaust chamber 112, and a second channel 113, which are arranged in sequence from bottom to top. The second sealing member 12 is disposed in the first channel 111, and the third sealing member 14 is disposed in the second channel 113. The exhaust chamber 112 is connected to the exhaust channel 41. The diameters of the first channel 111 and the second channel 113 are equal, while the diameter of the exhaust chamber 112 is greater than the diameter of the first channel 111. The height of the exhaust chamber 112 is greater than the diameter of the exhaust channel 41. After the detection work is completed, the detection tube is moved upward until the bottom of the detection tube moves into the exhaust chamber 112. Since the diameter of the exhaust chamber 112 is greater than the diameters of the first channel 111 and the second channel 113, the flow rate and pressure of the gas after entering the exhaust chamber 112 are reduced, thereby accelerating the pressure relief speed.

[0037] An exhaust pipe joint 4 is provided on the outer wall of the detection part 1, and an exhaust channel 41 passes through the exhaust pipe joint 4. By providing the exhaust pipe joint 4, the exhaust pipe can be more conveniently connected to the exhaust channel 41.

[0038] A second annular groove 13 and a third annular groove 15 are provided on the inner wall of the detection channel 11. The second sealing member 12 and the third sealing member 14 are both sealing rings. The second sealing member 12 is installed in the second annular groove 13, and the third sealing member 14 is installed in the third annular groove 15. The sealing rings have excellent sealing performance, strong corrosion resistance and wear resistance, and a simple structure.

[0039] The working principle of the cabin gas sampling tool of this embodiment is as follows:

[0040] When the detection tube is extended into the sealed chamber 21 along the detection channel 11, the detection tube is in close contact with the second seal 12 and the third seal 14 to achieve double sealing, thereby improving the sealing effect of the gap between the detection tube and the detection channel 11; after completing the detection work, the detection port 5 of the cabin 6 is closed, and the external exhaust pipe connected to the exhaust channel 41 is opened to move the detection tube upward until the bottom of the detection tube is located between the second seal 12 and the third seal 14. The second seal 12 no longer plays a sealing role, and the residual gas in the sealed chamber 21 is affected by the pressure difference, passes through the detection channel 11 and the exhaust channel 41 in turn, and finally enters the exhaust pipe, completing the pressure relief and exhaust work; timely pressure relief after the detection is completed and before the detection tube is completely removed can avoid high-pressure toxic gas from being sprayed out of the detection channel 11 and causing harm to the human body.

[0041] Example 3

[0042] This embodiment is the first embodiment of the gas-measurable cabin of the present invention, comprising a cabin 6, a detection port 5 and a cabin gas sampling tool as described in the second embodiment. The detection port 5 is provided on the outer wall of the cabin 6 and is communicated with the interior of the cabin 6. The detection port 5 is communicated with the sealed chamber 21. An exhaust valve 51 is provided on the detection port 5. A second connection part 52 is provided on the top of the detection port 5. The second connection part 52 is detachably connected to the first connection part 3. When performing the detection work, ensure that the exhaust valve 51 is closed, install the first connection part 3 on the second connection part 52, extend the detection tube into the sealed chamber 21 along the detection channel 11, open the exhaust valve 51, and the gas in the cabin 6 enters the sealed chamber 21 through the detection port 5, and then enters the detection tool through the detection tube for detection. The operation is simple and convenient, as shown in FIG. Figure 2 shown.

[0043] In this embodiment, Figure 3 As shown, the second connection portion 52 includes a slot 522 and a second boss 521 extending from the side wall of the detection port 5 to the surrounding area. The second boss 521 is provided at the top of the detection port 5, and the slot 522 is provided on the second boss 521. The slot 522 is engaged with the buckle 32. The exhaust valve 51 is a ball valve.

[0044] The working principle of the measurable gas chamber in this embodiment is as follows:

[0045] When it is necessary to sample the gas in the cabin 6, the buckle 32 of the first connecting part 3 is inserted into the slot 522 of the second connecting part 52 to achieve the connection between the first connecting part 3 and the second connecting part 52, so that the sampling tool is installed on the detection port 5 reserved in the cabin 6. The detection port 5 is tightly attached to and squeezes the first sealing member 22 to achieve the sealing at the junction of the sampling tool and the detection port 5. The detection tube connected to the external gas detection tool is extended into the sealed chamber 21 along the detection channel 11. The detection tube is tightly attached to the second sealing member 12 and the third sealing member 14 to achieve double sealing. The exhaust valve 51 is opened to allow a small amount of gas in the cabin 6 to enter the sealed chamber 2 through the detection port 5. 1, the gas sample enters the external gas detection tool through the detection tube for detection; after the detection work is completed, the exhaust valve 51 is closed, and the valve of the external exhaust pipeline connected to the exhaust channel 41 is opened to move the detection tube upward until the bottom of the detection tube is located between the second sealing member 12 and the third sealing member 14. The second sealing member 12 no longer has a sealing effect. The residual gas in the sealed chamber 21 is affected by the pressure difference and passes through the detection channel 11 and the exhaust channel 41 in turn, and finally enters the exhaust pipeline, completing the pressure relief and exhaust work. Subsequently, the detection tube is completely removed, and the first connecting part 3 is removed from the second connecting part 52, thereby removing the sampling tool.

[0046] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A cabin gas sampling tool, characterized in that: The invention comprises a detection part (1) and a storage part (2) arranged in sequence from top to bottom, wherein the detection part (1) is provided with a detection channel (11), the storage part (2) is provided with a sealed chamber (21), the sealed chamber (21) is communicated with a detection port (5) of a chamber to be detected (6), the storage part (2) is provided with a first connection part (3) detachably connected to the detection port (5) of the chamber to be detected (6), one end of the detection channel (11) is communicated with the outside, and the other end is communicated with the sealed chamber (21).

2. The cabin gas sampling tool according to claim 1, characterized in that: The first connecting portion (3) comprises a first boss (31) and a buckle (32), wherein the first boss (31) is arranged on the outer side surface of the storage portion (2), and the buckle (32) is arranged at the bottom of the first boss (31), and the height of the buckle (32) is lower than the height of the bottom opening of the sealed chamber (21).

3. The cabin gas sampling tool according to claim 1, characterized in that: A first sealing member (22) is provided at the bottom of the sealed chamber (21).

4. The cabin gas sampling tool according to claim 3, characterized in that: A first annular groove (23) is provided at the bottom of the side wall of the sealing chamber (21); the first sealing member (22) is a sealing ring; and the first sealing member (22) is installed in the first annular groove (23).

5. The cabin gas sampling tool according to claim 1, characterized in that: A second sealing member (12) is provided in the detection channel (11).

6. The cabin gas sampling tool according to claim 5, characterized in that: An exhaust channel (41) is further provided in the detection portion (1), one end of the exhaust channel (41) is connected to the detection channel (11), and the other end is connected to the outside world. A third sealing member (14) is further provided in the detection channel (11), the second sealing member (12) is located below the exhaust channel (41), and the third sealing member (14) is located above the exhaust channel (41).

7. The cabin gas sampling tool according to claim 6, characterized in that: The detection channel (11) comprises a first channel (111), an exhaust chamber (112) and a second channel (113) which are arranged in sequence from bottom to top; the second sealing member (12) is arranged in the first channel (111); the third sealing member (14) is arranged in the second channel (113); the exhaust chamber (112) is communicated with the exhaust channel (41); the diameters of the first channel (111) and the second channel (113) are equal; and the diameter of the exhaust chamber (112) is larger than the diameter of the first channel (111).

8. The cabin gas sampling tool according to claim 7, characterized in that: An exhaust pipe joint (4) is provided on the outer wall of the detection portion (1), and the exhaust passage (41) passes through the exhaust pipe joint (4).

9. The cabin gas sampling tool according to claim 6, characterized in that: A second annular groove (13) and a third annular groove (15) are provided on the inner wall of the detection channel (11); the second sealing member (12) and the third sealing member (14) are both sealing rings; the second sealing member (12) is installed in the second annular groove (13); and the third sealing member (14) is installed in the third annular groove (15).

10. A gas-measurable chamber, characterized in that: The invention comprises a cabin (6), a detection port (5) and a cabin gas sampling tool according to any one of claims 1 to 9, wherein the detection port (5) is arranged on the outer wall of the cabin (6) and is connected to the interior of the cabin (6), an exhaust valve (51) is provided on the detection port (5), and a second connecting portion (52) is provided at the top of the detection port (5), and the second connecting portion (52) is detachably connected to the first connecting portion (3).

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