Nuclear power station hydrogen sampling and measuring device

Abstract

The utility model relates to a nuclear power station hydrogen sampling and measuring device which comprises a compression device and a sampling device, the compression device comprises a compression shell and a rotor assembly, the compression shell is provided with a cylindrical compression cavity, a first gas inlet and a first gas outlet, the first gas inlet and the first gas outlet are communicated with the cylindrical compression cavity, and the rotor assembly is eccentrically arranged in the cylindrical compression cavity. The sampling device comprises a sampling shell, a sampling piston is arranged in the sampling shell in a sealed and sliding mode and divides an inner cavity of the sampling shell into a driving cavity and a sampling cavity, a driving component is arranged in the driving cavity to drive the sampling piston to move towards the sampling cavity, and the sampling shell is provided with a second air inlet and a second air outlet which are communicated with the sampling cavity. The second air inlet communicates with the first air outlet, and the second air outlet is provided with an exhaust control valve. The hydrogen sampling and measuring device for the nuclear power station can conveniently and quickly realize gas sampling and transferring, is convenient to detect, and is favorable for ensuring the safe operation or hydrogen production effect of the nuclear power station.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power plant equipment technical field, especially a nuclear power plant hydrogen sampling measuring device. BACKGROUND

[0002] In the nuclear power plant abnormal operation, such as light water reactor during severe accident, will produce a large amount of hydrogen and release into the steel containment, and when the hydrogen volume concentration in the steel containment reaches certain limit value, explosion will occur, destroy the integrity of the steel containment, and further lead to the leakage of radioactive material in the nuclear power plant reactor, except normal operation, the current nuclear energy hydrogen production technology uses the heat generated by nuclear reactor as the energy of hydrogen production, through selecting appropriate process, realizes high efficiency, large-scale hydrogen production.

[0003] Therefore, whether it is to ensure the safe operation of nuclear power plant, or to ensure the hydrogen production effect, it is necessary to sample and detect the gas in the steel containment or the gas at the outlet of hydrogen production equipment to ensure the safe operation of nuclear power plant or the hydrogen production effect. UTILITY MODEL CONTENT

[0004] The utility model discloses a nuclear power plant hydrogen sampling measuring device, which can conveniently and quickly sample the gas in the nuclear power plant.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A nuclear power plant hydrogen sampling measuring device, comprising:

[0007] A compression device, the compression device comprises a compression shell and a rotor assembly, the compression shell is provided with a cylindrical compression cavity, a first air inlet and a first air outlet communicated with the cylindrical compression cavity, and the rotor assembly is eccentrically arranged in the cylindrical compression cavity to suck air from the first air inlet and discharge compressed air from the first air outlet.

[0008] A sampling device, the sampling device comprises a sampling shell, a sampling piston is sealingly and slidably arranged in the sampling shell, the sampling piston divides the inner cavity of the sampling shell into a driving cavity and a sampling cavity, a driving member is arranged in the driving cavity to drive the sampling piston to move towards the sampling cavity, the sampling shell is provided with a second air inlet and a second air outlet communicated with the sampling cavity, the second air inlet is communicated with the first air outlet, and the second air outlet is provided with an exhaust control valve.

[0009] In an embodiment of the present application, the air storage device is further included, and the second air inlet is communicated with the first air outlet through the air storage device. The air storage device includes an air storage shell having an air storage cavity, and a third air inlet and a third air outlet communicated with the air storage cavity. The third air inlet is communicated with the first air outlet, and the third air outlet is communicated with the second air inlet. The third air inlet is provided with an air inlet control valve.

[0010] In an embodiment of the present application, the sampling device further includes:

[0011] A telescopic guide rod is arranged in the sampling shell.

[0012] A sampling hose is wound on the telescopic guide rod, and at least one end of the sampling hose is provided with a quick connector for connecting with the exhaust control valve.

[0013] In an embodiment of the present application, one end of the telescopic guide rod is rotatably arranged in the sampling shell.

[0014] In an embodiment of the present application, the rotor assembly includes:

[0015] A rotor body is in a cylindrical shape, and is eccentrically and rotatably arranged in the cylindrical compression cavity.

[0016] A rotor blade is elastically arranged on the outer circumferential surface of the rotor body, and a plurality of rotor blades are uniformly distributed along the circumferential direction of the rotor body.

[0017] A driving device is drivingly connected with the rotor body outside the compression shell.

[0018] In an embodiment of the present application, the outer circumferential surface of the rotor body is provided with a plurality of mounting grooves arranged along the radial direction of the rotor body. The rotor blade is sealingly and slidingly arranged in the mounting groove. An elastic return member is arranged between the rotor blade and the rotor body in the mounting groove.

[0019] In an embodiment of the present application, the driving device includes a crank and a handle. One end of the crank is coaxially connected with the rotor body, and the other end of the crank is connected with the handle.

[0020] In an embodiment of the present application, the first air inlet is provided with a one-way valve for unidirectional conduction from outside the compression shell to the cylindrical compression cavity.

[0021] In an embodiment of the present application, the driving member is a compression spring.

[0022] In an embodiment of the present application, the gas storage shell and the sampling shell are respectively connected to the compression shell.

[0023] From the above technical solution can be seen, the utility model discloses a kind of nuclear power plant hydrogen sampling measurement device, which includes compression device and sampling device, wherein, compression device includes compression shell and rotor assembly, compression shell is provided with cylindrical compression cavity and the first air inlet and the first air outlet communicated with cylindrical compression cavity, rotor assembly is eccentrically arranged in cylindrical compression cavity, and rotor assembly separates cylindrical compression cavity into multiple chambers of different sizes, to suck air from the first air inlet and discharge from the first air outlet after compression, sampling device includes sampling shell, sampling piston is sealingly slidably arranged in sampling shell, sampling piston separates the inner cavity of sampling shell into drive cavity and sampling cavity, drive member is arranged in drive cavity to drive sampling piston to move towards sampling cavity, sampling shell is provided with the second air inlet and the second air outlet communicated with sampling cavity, the second air inlet is communicated with the first air outlet, and the second air outlet is provided with exhaust control valve.

[0024] In application, the first air inlet is connected to the pipeline to be sampled, and the rotor assembly is rotated, since the rotor assembly is eccentrically arranged, with the rotation of the rotor assembly, the chamber volume is reduced to realize the compression of gas, so as to realize the suction of gas from the first air inlet and the discharge from the first air outlet after compression, after the gas discharged from the first air inlet enters the sampling shell, the sampling piston is driven to move towards the drive cavity to accommodate the sampling gas, and then the sampling gas can be transferred to the detection equipment for detection by the above nuclear power plant hydrogen sampling measurement device.

[0025] It can be seen that the above nuclear power plant hydrogen sampling measurement device can conveniently and quickly realize gas sampling and transfer, facilitate detection, and help to ensure the safe operation of nuclear power plant or hydrogen production effect. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0027] Figure 1 The structure diagram of the nuclear power plant hydrogen sampling measurement device provided by the embodiment of the present application is shown in the figure.

[0028] Figure 2 The compression device and gas storage device of the nuclear power plant hydrogen sampling measurement device provided by the embodiment of the present application are shown in the figure.

[0029] Figure 3 The bottom view of the nuclear power station hydrogen gas sampling and measuring device is provided for the embodiment of the utility model.

[0030] Figure 4 The structure schematic view of the rotor assembly of the nuclear power station hydrogen gas sampling and measuring device is provided for another embodiment of the utility model.

[0031] In the figure:

[0032] 1 is a compression device; 110 is a compression shell; 111 is a cylindrical compression cavity; 112 is a first air inlet; 113 is a first air outlet; 120 is a rotor assembly; 121 is a rotor main body; 122 is a rotor blade; 123 is an elastic reset member; 130 is a driving device; 131 is a crank; 132 is a handle; 140 is a handle;

[0033] 2 is a sampling device; 210 is a sampling shell; 211 is a driving cavity; 212 is a sampling cavity; 213 is a second air inlet; 214 is a second air outlet; 220 is a sampling piston; 230 is a compression spring; 240 is a telescopic guide rod; 250 is a sampling hose;

[0034] 3 is a gas storage device; 310 is a gas storage shell; 311 is a gas storage cavity; 312 is a third air inlet; 313 is a third air outlet; 4 is a connecting pipe. DETAILED DESCRIPTION

[0035] The core of the utility model is to provide a kind of nuclear power station hydrogen gas sampling and measuring device, and the structural design of the nuclear power station hydrogen gas sampling and measuring device makes it convenient and fast to sample nuclear power station gas.

[0036] The technical scheme in the embodiment of the utility model will be clearly and completely described in the embodiment of the utility model in combination with drawings, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0037] Please refer to Figures 1 to 3 , Figure 1 The structure schematic view of the nuclear power station hydrogen gas sampling and measuring device is provided for the embodiment of the utility model, Figure 2 The compression device and gas storage device sectional view of the nuclear power station hydrogen gas sampling and measuring device are provided for the embodiment of the utility model, Figure 3 The bottom view of the nuclear power station hydrogen gas sampling and measuring device is provided for the embodiment of the utility model.

[0038] The utility model discloses a kind of nuclear power plant hydrogen sampling measuring devices, which includes compression device 1 and sampling device 2.

[0039] Wherein, compression device 1 is used to extract gas in sampling pipeline by pressure change negative pressure, and compression device 1 includes compression shell 110 and rotor assembly 120, compression shell 110 is provided with cylindrical compression cavity 111, first air inlet 112 and first air outlet 113 communicated with cylindrical compression cavity 111, rotor assembly 120 is eccentrically arranged in cylindrical compression cavity 111, and rotor assembly 120 separates cylindrical compression cavity 111 into multiple chambers with different sizes, and rotor assembly 120 adopts deformable structure, i.e., rotor assembly 120 can deform under the action of the inner wall of compression shell 110 with the rotation of rotor assembly 120, so that each chamber is always separated from each other by rotor assembly 120, and the volume of each chamber increases or decreases with the rotation of rotor assembly 120, so that gas is sucked from first air inlet 112 and discharged from first air outlet 113 after compression.

[0040] Sampling device 2 includes sampling shell 210, sampling piston 220 is sealingly and slidably arranged in sampling shell 210, sampling piston 220 separates the inner cavity of sampling shell 210 into driving cavity 211 and sampling cavity 212, driving member is arranged in driving cavity 211 to drive sampling piston 220 to move towards sampling cavity 212, sampling piston 220 moves towards driving cavity 211 during sampling to increase the volume of sampling cavity 212, when sampling is stopped and the obtained sample needs to be released, driving member acts to compress sampling cavity 212 to extrude the gas sample out of sampling cavity 212, sampling shell 210 is provided with second air inlet 213 and second air outlet 214 communicated with sampling cavity 212, second air inlet 213 is communicated with first air outlet 113, and exhaust control valve is arranged on second air outlet 214.

[0041] Compared with the prior art, the nuclear power plant hydrogen sampling measuring device provided by the embodiment of the present application can conveniently and quickly realize gas sampling and transfer, facilitate detection, and help to ensure the safe operation of nuclear power plants or hydrogen production effect.

[0042] As Figure 1 and Figure 2 shown, in an embodiment of the present application, the nuclear power plant hydrogen sampling measuring device further comprises a gas storage device 3, the second gas inlet 213 of the sampling device 2 is communicated with the first gas outlet 113 through the gas storage device 3, the gas storage device 3 comprises a gas storage shell 310 with a gas storage cavity 311, and a third gas inlet 312 and a third gas outlet 313 communicated with the gas storage cavity 311, the third gas inlet 312 is communicated with the first gas outlet 113, the third gas outlet 313 is communicated with the second gas inlet 213, the third gas inlet 312 is provided with an air inlet control valve, the air inlet control valve is a one-way valve, which is used for one-way conduction from the cylindrical compression cavity 111 to the gas storage cavity 311, so as to avoid the gas in the gas storage device 3 flowing into the cylindrical compression cavity 111, the gas storage device 3 serves as a transition structure between the sampling pipeline and the sampling device 2, and plays a role in stabilizing the gas pressure, avoiding the sampling gas impacting the sampling piston 220 and causing a safety accident.

[0043] Further optimization of the above technical solution, for the convenience of sampling detection, in an embodiment of the present application, as shown in Figure 1 , the sampling device 2 further comprises a telescopic guide rod 240 and a sampling hose 250, the telescopic guide rod 240 is arranged in the sampling shell 210, the sampling hose 250 is wound on the telescopic guide rod 240, or a wheel disc can be arranged on the telescopic guide rod 240 to accommodate the sampling hose 250, and at least one end of the sampling hose 250 is provided with a quick connector for connecting with the exhaust control valve, when it is necessary to detect the sampling gas, the exhaust control valve and the detection equipment can be connected through the sampling hose 250, and the telescopic guide rod 240 is used for supporting and accommodating the sampling hose 250.

[0044] Of course, in other embodiments, the quick connector can also be directly arranged on the exhaust control valve, so that it can be directly connected with the detection equipment.

[0045] As Figure 1As shown in one embodiment of this application, one end of the telescopic guide rod 240 is rotatably mounted on the sampling housing 210, allowing the user to adjust the tilt direction of the telescopic guide rod 240 as needed for convenient use. Specifically, one end of the telescopic guide rod 240 is connected to the sampling housing 210 via a universal joint structure. The universal joint structure includes a first connecting part, a second connecting part, and an intermediate connecting block. A first rotating shaft and a second rotating shaft are respectively mounted on the intermediate connecting block. The first rotating shaft and the second rotating shaft are perpendicular, and the first connecting part is rotatably connected to the first rotating shaft, and the second connecting part is rotatably connected to the second rotating shaft. The connection is rotatable, with the first and second connecting parts located at opposite ends of the intermediate connecting block. The first connecting part connects to the telescopic guide rod 240, and the second connecting part connects to the sampling housing 210, so that the telescopic guide rod 240 can rotate relative to the sampling housing 210 in at least two directions. Alternatively, the second connecting part can be rotatably mounted on the sampling housing 210, and the axis of rotation of the second connecting part relative to the sampling housing 210 is perpendicular to the first and second rotating axes, so that the telescopic guide rod 240 can rotate relative to the sampling housing 210 around three mutually perpendicular rotating axes.

[0046] like Figure 2 As shown, in one embodiment of this application, the rotor assembly 120 includes a rotor body 121, rotor blades 122, and a drive device 130. The rotor body 121 is cylindrical and rotatably disposed within the cylindrical compression cavity 111, eccentrically relative to it. The rotor blades 122 are elastically disposed on the outer circumferential surface of the rotor body 121. The lengths of the rotor blades 122 and the rotor body 121 are substantially equivalent to the length of the cylindrical compression cavity 111. Multiple rotor blades 122 are evenly distributed circumferentially around the rotor body 121. The end of the rotor blade 122 away from the rotor body 121 abuts against the inner wall of the cylindrical compression chamber 111. The end of the rotor blade 122 away from the rotor body 121 is an arc surface to reduce the frictional contact area between the rotor blade 122 and the inner wall of the cylindrical compression chamber 111. The aforementioned chamber is formed between two adjacent rotor blades 122. As the rotor body 121 rotates, the rotor blade 122 extends and retracts to increase or decrease the volume of the chamber. The drive device 130 is connected to the rotor body 121 outside the compression housing 110. The drive device 130 can be a drive motor or a manual drive device 130.

[0047] Furthermore, such as Figure 2 As shown, a plurality of mounting grooves are provided on the outer peripheral surface of the rotor body 121 along the radial direction of the rotor body 121, and the rotor blades 122 are sealed and slidably disposed in the mounting grooves. An elastic reset member 123 is provided between the rotor blades 122 and the rotor body 121 in the mounting grooves.

[0048] Of course, the rotor assembly 120 is only a preferred embodiment provided by the present application, and is not limited thereto. In other embodiments, the rotor assembly 120 can also have other structures. For example, in addition to the telescopic structure, the rotor blade 122 can also be rotatably arranged on the rotor body 121, as shown in the following. Figure 4 In this embodiment, the rotation axis of the rotor blade 122 is parallel to the axis of the rotor body 121, and a torsion spring is arranged on the rotation axis of the rotor blade 122, and the two ends of the torsion spring abut against the rotor blade 122 and the rotor body 121, respectively.

[0049] As shown in the following, Figure 1 and Figure 3 In an embodiment of the present application, the driving device 130 is a manual driving device 130, which includes a crank 131 and a handle 132. One end of the crank 131 is coaxially connected with the rotor body 121, and the other end of the crank 131 is connected with the handle 132. The handle 132 is rotatably arranged on the crank 131 for convenient operation.

[0050] Further optimization of the above technical solution, in an embodiment of the present application, the first inlet 112 is provided with a one-way valve, which is used for one-way conduction from the outside of the compression housing 110 to the cylindrical compression cavity 111, so as to avoid backflow of the sampling gas.

[0051] In a specific embodiment of the present application, the driving member of the sampling device 2 is a compression spring 230. During sampling, as the pressure in the sampling cavity 212 increases, the sampling gas compresses the compression spring 230 through the sampling piston 220. When the sampling gas is discharged, the pressure in the sampling cavity 212 decreases, and the compression spring 230 drives the piston to move in the direction of the sampling cavity 212.

[0052] In order to ensure the safety of the sampling process, the above-mentioned nuclear power plant hydrogen sampling and measuring device further comprises a pressure gauge for detecting the pressure in the sampling cavity 212.

[0053] As shown in the following, Figure 1 In an embodiment of the present application, the gas storage housing 310 and the sampling housing 210 are respectively connected to the compression housing 110, and the third gas outlet 313 of the gas storage housing 310 and the second gas inlet 213 of the sampling housing 210 are connected through the connecting pipe 4.

[0054] In order to facilitate the movement of the nuclear power plant hydrogen sampling and measuring device, in an embodiment of the present application, as shown in the following, Figure 1 and Figure 2 The compression housing 110 is further provided with a handle 140 for conveniently carrying the nuclear power plant hydrogen sampling and measuring device.

[0055] It should be noted that the various embodiments described in the specification are intended to be illustrative only and that the phraseology or terminology employed herein are for the purpose of description only and is not necessarily intended to be limiting. Any use of sections headings is intended to aid reading the full disclosure and is not limiting. Unless otherwise indicated, the terms "approximately", "substantially" and "about" employed in the specification and claims are used on a meaning intended to encompass a wide, but preferably minor, range of equivalents around the nominal value. Thus, at least to some extent, the terms can be read to either require or prefer a range of equivalents that do not differ essentially from the value stated by more than 10%, preferably by more than 5%, and more preferably by more than 1%.

[0056] It should be understood that, in the present application, if "system", "apparatus", "unit" and / or "module" are used, it is only a method for distinguishing different components, elements, parts, sections or assemblies of different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0057] As shown in the present application and claims, unless the context clearly indicates otherwise, the words "one", "an", "a", and / or "the" do not necessarily refer to the singular, but can also include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements. The element defined by the phrase "including a" does not exclude the presence of additional identical elements in the process, method, product or device including the element.

[0058] In the description of embodiments of the present application, " / " means "or" unless otherwise stated, for example, A / B can mean A or B; "and / or" in the present application is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A alone, A and B together, and B alone. In addition, in the description of embodiments of the present application, "multiple" means two or more than two.

[0059] If a flowchart is used in the present application, the flowchart is used to illustrate the operations performed by the system according to the embodiments of the present application. It should be understood that the preceding or subsequent operations do not necessarily be executed in sequence. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can be added to these processes, or one or more steps can be removed from these processes.

[0060] It should also be noted that in this document, terms such as "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such article or device. Without more limitations, the element defined by the phrase "including a" does not exclude the presence of additional identical elements in the article or device including the element.

[0061] The principle and implementation mode of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A nuclear power plant hydrogen sampling measurement device, characterized by, The application relates to a compression device (1) and a sampling device (2) and a gas storage device (3). The compression device (1) comprises a compression shell (110) and a rotor assembly (120), the compression shell (110) is provided with a cylindrical compression cavity (111), a first air inlet (112) and a first air outlet (113) which are communicated with the cylindrical compression cavity (111), and the rotor assembly (120) is eccentrically arranged in the cylindrical compression cavity (111) to suck air from the first air inlet (112) and discharge the compressed air from the first air outlet (113). The sampling device (2) comprises a sampling shell (210), a sampling piston (220) is arranged in the sampling shell (210) in a sealing sliding mode, the sampling piston (220) divides the inner cavity of the sampling shell (210) into a driving cavity (211) and a sampling cavity (212), a driving member is arranged in the driving cavity (211) to drive the sampling piston (220) to move towards the sampling cavity (212), the sampling shell (210) is provided with a second air inlet (213) and a second air outlet (214) which are communicated with the sampling cavity (212), the second air inlet (213) is communicated with the first air outlet (113), and the second air outlet (214) is provided with an exhaust control valve.

2. The nuclear power plant hydrogen sampling measurement device of claim 1, wherein, The application further comprises the gas storage device (3), the second air inlet (213) is communicated with the first air outlet (113) through the gas storage device (3), the gas storage device (3) comprises a gas storage shell (310) with a gas storage cavity (311) and a third air inlet (312) and a third air outlet (313) which are communicated with the gas storage cavity (311), the third air inlet (312) is communicated with the first air outlet (113), the third air outlet (313) is communicated with the second air inlet (213), and the third air inlet (312) is provided with an air inlet control valve.

3. The nuclear power plant hydrogen sampling measurement apparatus of claim 1, wherein, The sampling device (2) further comprises: a telescopic guide rod (240) arranged in the sampling shell (210); a sampling hose (250) wound on the telescopic guide rod (240), and at least one end of the sampling hose (250) is provided with a quick connector for being connected with the exhaust control valve.

4. The nuclear power plant hydrogen sampling measurement apparatus of claim 3, wherein, One end of the telescopic guide rod (240) is rotatably arranged in the sampling shell (210).

5. The nuclear power plant hydrogen sampling and measuring apparatus according to any one of claims 1 to 4, characterized in that, The rotor assembly (120) comprises: a rotor body (121) in a cylindrical shape, the rotor body (121) is eccentrically and rotatably arranged in the cylindrical compression cavity (111) relative to the cylindrical compression cavity (111); rotor blades (122) elastically arranged on the outer circumferential surface of the rotor body (121), and a plurality of the rotor blades (122) are uniformly distributed along the circumference of the rotor body (121); a driving device (130) drivingly connected with the rotor body (121) outside the compression shell (110).

6. The nuclear power plant hydrogen sampling measurement apparatus of claim 5, wherein, The outer circumferential surface of the rotor body (121) is provided with a plurality of installation grooves arranged radially on the rotor body (121), and the rotor blades (122) are sealingly and slidingly arranged in the installation grooves, and elastic return members (123) are arranged between the rotor blades (122) and the rotor body (121) in the installation grooves.

7. The nuclear power plant hydrogen sampling measurement apparatus of claim 5, wherein, The driving device (130) comprises a crank (131) and a handle (132), one end of the crank (131) is coaxially connected with the rotor body (121), and the other end of the crank (131) is connected with the handle (132).

8. The nuclear power plant hydrogen sampling and measuring apparatus according to any one of claims 1 to 4, characterized by The first air inlet (112) is provided with a one-way valve for one-way conduction in the direction from outside the compression housing (110) to the cylindrical compression cavity (111).

9. The nuclear power plant hydrogen sampling and measuring apparatus according to any one of claims 1 to 4, characterized by The driving member is a compression spring (230).

10. The nuclear power plant hydrogen sampling measurement apparatus of claim 2, wherein, The gas storage housing (310) and the sampling housing (210) are respectively connected to the compression housing (110).

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