Gas sampling device

Abstract

The utility model provides a gas sampling device. The gas sampling device comprises a frame body, a sampling table, a first driving mechanism, a sampling frame, a second driving mechanism and a controller, the sampling table is mounted on the frame body in a lifting manner and is used for placing a chloride ion collection bottle; the first driving mechanism is installed on the frame body and drives the sampling table to ascend and descend. The sampling frame is installed on the frame body in a lifting mode and used for containing alkali absorption pieces. The second driving mechanism is installed on the frame body and drives the sampling frame to ascend and descend. The controller is electrically connected with the first driving mechanism and the second driving mechanism. According to the gas sampling device, the chloride ion collection bottle and the alkali absorption sheet can be replaced without climbing operation, so that the risks of high-place operation of personnel and falling of the chloride ion collection bottle or the alkali absorption sheet are avoided.

Description

Technical Field

[0001] This utility model relates to the field of coastal atmospheric environment gas sampling technology, specifically to a gas sampling device. Background Technology

[0002] To understand the corrosiveness of nuclear power plant site environments and develop more effective corrosion prevention strategies, it is typically necessary to collect chloride ion and sulfur dioxide data from the site atmosphere to determine the corrosiveness level of the environment. Chloride ion data is usually collected using the wet candle method. By periodically replacing the chloride ion collection bottle, quantitative analysis of the chloride ions in the solution within the bottle is performed to calculate the deposition rate. Sulfur dioxide is collected using alkali absorbent plates. By periodically replacing the alkali absorbent plates, quantitative analysis of the replaced plates is performed to calculate the sulfur dioxide content in the atmosphere. To avoid ground interference or localized pollution, and based on environmental monitoring and sampling height requirements, the deposition sampling platforms currently used to place the collection bottles and fix the alkali absorbent plates are mostly simple metal frames installed at high locations. The periodic replacement of chloride ion collection bottles and alkali absorbent plates requires personnel to work at heights, posing risks of falls from height and falling objects. Utility Model Content

[0003] In view of the technical problems of existing sampling devices requiring climbing to replace the collection bottle and alkali absorption tablet, which poses the risk of personnel falling from height or objects falling from height, this utility model provides a gas sampling device.

[0004] To achieve the above and other related objectives, this utility model provides a gas sampling device, comprising a frame, a sampling platform, a first driving mechanism, a sampling rack, a second driving mechanism, and a controller. The sampling platform is vertically and vertically mounted on the frame and is used to hold a chloride ion collection bottle. The first driving mechanism is mounted on the frame and drives the sampling platform to move up and down. The sampling rack is vertically and vertically mounted on the frame and is used to hold an alkali absorption tablet. The second driving mechanism is mounted on the frame and drives the sampling rack to move up and down. The controller is electrically connected to the first and second driving mechanisms.

[0005] In one embodiment of the gas sampling device of this utility model, the sampling platform is vertically and flexibly mounted on the frame via a first lifting mechanism. The first lifting mechanism includes a lead screw and a guide rod. The lead screw is rotatably mounted on the frame and threadedly connected to the sampling platform. The guide rod is fixedly mounted on the frame and slidably connected to the sampling platform. The first driving mechanism is connected to the lead screw to drive the lead screw to rotate.

[0006] In one embodiment of the gas sampling device of this utility model, a limit block is also provided on the upper part of the guide rod.

[0007] In one embodiment of the gas sampling device of this utility model, the sampling platform includes a bracket and a container. The bracket is threadedly connected to the lead screw and slidably connected to the guide rod. The container is fixedly connected to the bracket, and the chloride ion collection bottle is installed in the container.

[0008] In one embodiment of the gas sampling device of this utility model, a plurality of observation holes are provided on the side of the accommodating cylinder.

[0009] In one embodiment of the gas sampling device of this utility model, the container is made of aluminum alloy.

[0010] In one embodiment of the gas sampling device of this utility model, a baffle plate is also provided above the accommodating cylinder, and the baffle plate is fixedly installed on the frame.

[0011] In one embodiment of the gas sampling device of this utility model, the sampling platform is vertically and flexibly mounted on the frame via a second lifting mechanism. The second lifting mechanism includes a traction rope coil and a guide rail. The traction rope coil is installed at the output end of the second drive mechanism and connected to the sampling frame. The guide rail is fixedly mounted on the frame, and the sampling frame is slidably connected to the guide rail.

[0012] In one embodiment of the gas sampling device of this utility model, the controller includes a control module and a timing module. The control module is electrically connected to the timing module and is also electrically connected to the first drive mechanism and the second drive mechanism.

[0013] In one embodiment of the gas sampling device of this utility model, the controller further includes a communication module, which is electrically connected to the control module and wirelessly connected to a mobile terminal.

[0014] This invention provides a gas sampling device for collecting samples of chloride ion content and sulfur dioxide in the atmospheric environment of a coastal nuclear power plant. The sampling platform serves as a mounting base for the chloride ion collection bottle, and is raised and lowered on the frame under the drive of a first driving mechanism. The sampling rack serves as a mounting bracket for the alkali absorbent tablet, and is raised and lowered on the frame under the drive of a second driving mechanism. This eliminates the need for climbing, avoids the risk of personnel working at heights and the possibility of chloride ion collection bottles or alkali absorbent tablets falling, and facilitates the replacement of chloride ion collection bottles and alkali absorbent tablets by operators. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the gas sampling device of this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of one embodiment of the gas sampling device of this utility model. Figure 2 ;

[0018] Figure 3 This is a partial structural diagram of one embodiment of the gas sampling device of this utility model. Figure 1 ;

[0019] Figure 4 This is a partial structural diagram of one embodiment of the gas sampling device of this utility model. Figure 2 .

[0020] Component designation explanation:

[0021] 10. Chloride ion collection bottle; 20. Alkali absorption plate; 100. Frame; 101. Shielding plate; 200. Sampling table; 210. Bracket; 220. Container cylinder; 221. Observation hole; 300. First drive mechanism; 400. Sampling frame; 410. Frame part; 420. Connecting part; 500. Second drive mechanism; 600. Controller; 700. First lifting mechanism; 710. Lead screw; 720. Guide rod; 721. Limiting block; 800. Second lifting mechanism; 810. Traction rope coil; 820. Guide rail. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0023] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0024] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0025] To address the technical problem of existing sampling devices requiring work at heights for replacing collection bottles and alkali absorbers, which poses risks of falls or falling objects, this invention provides a gas sampling device. This device is used to collect samples of chloride ion content and sulfur dioxide in the atmospheric environment of a coastal nuclear power plant. It eliminates the need for work at heights, avoiding the risks of personnel working at heights and the risk of chloride ion collection bottles or alkali absorbers falling, thus improving the efficiency of chloride ion collection bottles and alkali absorber replacement.

[0026] Please see Figures 1 to 4This utility model provides a gas sampling device, which includes a frame 100, a sampling platform 200, a first drive mechanism 300, a sampling rack 400, a second drive mechanism 500, and a controller 600. The frame 100 serves as the support frame for the gas sampling device. The frame 100 adopts a frame structure, preferably an aluminum alloy frame structure, which ensures gas flow permeability while possessing strong corrosion resistance. The sampling platform 200 is a placement platform for the chloride ion collection bottle 10. The sampling platform 200 is mounted on the frame 100 in a height-adjustable manner. The height-adjustable mounting method of the sampling platform 200 on the frame 100 is not limited; it can be a gear and rack lifting mechanism, a chain drive lifting mechanism, a traction lifting mechanism, a ball screw lifting mechanism, a cylinder lifting mechanism, a guide rail sliding mechanism, etc., as long as it can meet the requirements for driving the sampling platform 200 to rise and fall. According to environmental monitoring and sampling standards, the chloride ion collection bottle 10 is usually placed at a height of about 2 meters above the ground. The method of fixing the chloride ion collection bottle 10 on the sampling stage 200 is not limited, as long as the stability of the chloride ion collection bottle 10 on the sampling stage 200 is ensured. For example, it can be fixed by clamping, or it can be fixed by setting a slot or other limiting structure, but it is not limited thereto. The first drive mechanism 300 is mounted on the frame 100. The first drive mechanism 300 serves as a power source to drive the sampling stage 200 to rise and fall on the frame 100. The first drive mechanism 300 can be a motor, or a commonly used power supply mechanism such as an air pump or an oil pump.

[0027] The sampling frame 400 serves as a mounting bracket for the alkali absorbent tablets 20, used to hold them. The sampling frame 400 is height-adjustable and mounted on the frame body 100. The mounting method for the sampling frame 400 on the frame body 100 is not limited; it can be a gear and rack lifting mechanism, chain drive lifting mechanism, traction lifting mechanism, ball screw lifting mechanism, cylinder lifting mechanism, guide rail sliding mechanism, etc., as long as it allows the sampling frame 400 to be height-adjustable on the frame body 100. According to environmental monitoring and sampling standards, the alkali absorbent tablets 20 are typically placed at a height of approximately 3 meters above the ground for sampling. The sampling frame 400 has a frame structure, and the alkali absorbent tablets 20 can be fixed to the sampling frame 400 by binding, clamping, or hooking. The number of alkali absorbent tablets 20 can be one set or multiple sets, depending on the actual sampling needs. The second drive mechanism 500 is the power source for driving the sampling frame 400 to rise and fall, providing power for the lifting and lowering of the sampling platform 200 on the frame body 100. The second drive mechanism 500 can be an electric motor, or a commonly used power supply mechanism such as an air pump or an oil pump.

[0028] The controller 600 is electrically connected to the first drive mechanism 300 and the second drive mechanism 500. The installation location of the controller 600 is not limited; it can be installed at the bottom of the frame 100 or on the lower side of the frame 100, facilitating operator access. This allows the controller 600 to control the first drive mechanism 300 to move the sampling stage 200 vertically, or to control the second drive mechanism 500 to move the sampling rack 400 vertically. It should be noted that the controller 600 is a commonly used control device widely applied in existing automated control equipment, and will not be described in detail here.

[0029] This gas sampling device is used to collect samples of chloride ion content and sulfur dioxide in the atmospheric environment of a coastal nuclear power plant. The controller 600 controls the first drive mechanism 300 to raise the sampling platform 200 to a height suitable for sampling, or to lower it below the frame 100, thereby facilitating the replacement of the chloride ion collection bottle 10. Similarly, the controller 600 controls the second drive mechanism 500 to raise the sampling frame 400 to a height suitable for sampling, or to lower it below the frame 100, thereby facilitating the replacement of the alkali absorber 20. This gas sampling device eliminates the need for operators to work at heights, avoiding the risk of the chloride ion collection bottle 10 or alkali absorber 20 falling, thus facilitating the replacement of these items and improving replacement efficiency.

[0030] Please see Figure 1 and Figure 3In one embodiment of the gas sampling device of this utility model, the sampling platform 200 is vertically and flexibly mounted on the frame 100 via a first lifting mechanism 700. Specifically, in this embodiment, the first lifting mechanism 700 is a lead screw and guide rod lifting mechanism. The first lifting mechanism 700 includes a lead screw 710 and a guide rod 720. The lower end of the lead screw 710 is rotatably mounted on the frame 100, and the upper end of the lead screw 710 extends along the upward direction of the sampling platform 200, ensuring that it is consistent with the movement direction of the sampling platform 200, and is rotatably connected to the upper part of the frame 100. The rod body of the lead screw 710 passes through the sampling platform 200 and is threadedly connected to the sampling platform 200. The guide rod 720 and the lead screw 710 are arranged parallel to each other at intervals. The lower end of the guide rod 720 is fixedly installed on the frame 100. The rod body of the guide rod 720 passes through the through hole on the sampling table 200 and slides to connect with the sampling table 200, effectively limiting the movement direction of the sampling table 200 and preventing the sampling table 200 from deviating or rotating during the lifting process, ensuring that the lifting movement of the sampling table 200 is smooth and accurate. The first drive mechanism 300 serves as a power source, connecting to the lead screw 710 to drive the lead screw 710 to rotate. The first drive mechanism 300 uses a motor, and the output end of the motor can directly drive the lead screw 710 to rotate. Alternatively, it can drive the lead screw 710 to rotate through a gear structure or a sprocket and chain structure. The first lifting mechanism 700, which is a lead screw and guide rail lifting type, can achieve smooth and precise lifting of the sampling table 200, ensuring the stability of the chloride ion collection bottle 10 during the lifting process.

[0031] Please see Figure 1 and Figure 2 In one embodiment of the gas sampling device of this utility model, a limiting block 721 is also provided on the upper part of the guide rod 720. The limiting block 721 is fixedly installed on the upper part or top of the guide rod 720 to limit the maximum displacement of the sampling stage 200 and prevent the sampling stage 200 from falling out of the lifting range of the first lifting mechanism 700.

[0032] Please see Figure 3 In one embodiment of the gas sampling device of this utility model, the sampling platform 200 includes a bracket 210 and a receiving cylinder 220. The bracket 210 is a mounting base for the receiving cylinder 220, and the receiving cylinder 220 is fixedly installed on the bracket 210. The fixing method of the receiving cylinder 220 on the bracket 210 is not limited; it can be fixed by welding or by bolt connection. The receiving cylinder 220 has a cylindrical structure and has a cavity for accommodating a chloride ion collection bottle 10, which is placed in the receiving cylinder 220. The bracket 210 is connected to a first lifting mechanism 700, and a first driving mechanism 300 drives the first lifting mechanism 700 to move the bracket 210 up and down. Specifically, in this embodiment, a lead screw 710 is threadedly connected to one side of the bracket 210, and a guide rod 720 is slidably connected to the other side of the bracket 210. When the lead screw 710 rotates, the guide rod 720 guides the bracket 210, thereby moving the bracket 210 up and down.

[0033] Please see Figure 3 Since the chloride ion collection bottle 10 is made of transparent glass, to facilitate direct observation of the sampling status of the chloride ion collection bottle 10, in one embodiment of the gas sampling device of this utility model, a plurality of observation holes 221 are provided on the side of the container cylinder 220. The shape of the observation holes 221 is not limited; they can be strip-shaped holes, rectangular slotted holes, or grid holes, as long as they allow direct observation of the sampling status of the chloride ion collection bottle 10 through the container cylinder 220. Specifically, in this embodiment, the observation holes 221 are elongated holes, and a plurality of elongated holes are provided along the height direction around the side wall of the container cylinder 220, so that even when the container cylinder 220 is in a high sampling position, it can still satisfy all-around viewing angle observation.

[0034] In one embodiment of the gas sampling device of this utility model, the container 220 is made of aluminum alloy. The aluminum alloy container 220 has high hardness and corrosion resistance, and can still ensure the stability of the chloride ion collection bottle 10 under external impact or strong winds.

[0035] Please see Figure 1 and Figure 2 In one embodiment of the gas sampling device of this utility model, a shielding plate 101 is also provided above the containing cylinder 220, and the shielding plate 101 is fixedly installed on the frame 100. The shielding plate 101 is located above the sampling position of the chloride ion collection bottle 10, which can block rain and sunlight, avoid the chloride ion collection bottle 10 from being affected by rain or sunlight, and ensure the accuracy of sampling data.

[0036] Please see Figure 2 and Figure 4In one embodiment of the gas sampling device of this utility model, the sampling platform 200 is vertically and flexibly mounted on the frame 100 via a second lifting mechanism 800, which is a traction mechanism. The second lifting mechanism 800 includes a traction rope coil 810 and a guide rail 820. The traction rope coil 810 is installed at the output end of the second drive mechanism 500 and connected to the sampling frame 400. The second drive mechanism 500 is the power source for driving the sampling frame 400 to move vertically. The second drive mechanism 500 is a motor and is installed on the upper part of the frame 100, located above the sampling frame 400. The second drive mechanism 500 makes reasonable use of the space at the height of the frame 100. The guide rail 820 is arranged along the height direction of the sampling frame 400. The lower end of the guide rail 820 is fixedly installed on the lower part of the frame 100, and the upper end of the guide rail 820 is fixedly connected to the upper part of the frame 100. The sampling frame 400 is slidably connected to the guide rail 820. Specifically, in this embodiment, there are two sets of guide rails 820, which are spaced apart. Each set of guide rails 820 has a guide rail groove along the lifting direction of the sampling frame 400. The two sides of the sampling frame 400 are slidably installed in the guide rail grooves of the two guide rails 820 to achieve a sliding connection between the sampling frame 400 and the guide rails 820. The traction rope coil 810 is installed at the output end of the second drive mechanism 500. The traction rope of the traction rope coil 810 is connected to the sampling frame 400, and the second drive mechanism 500 is electrically connected to the controller 600. When the sampling frame 400 needs to rise, the controller 600 controls the second drive mechanism 500 to rotate, causing the traction rope coil 810 to wind and contract, lifting the sampling frame 400 to a specified height. Conversely, the traction rope is lowered, and the sampling frame 400 slides down along the guide rails 820 under the action of gravity, realizing the replacement of the alkali absorption sheet 20. Compared to complex gear or screw transmission mechanisms, the second lifting mechanism 800 of the traction structure has a relatively simple structure and lower manufacturing and operating costs. At the same time, it reduces equipment maintenance costs and complexity.

[0037] Please see Figure 4 In one embodiment of the gas sampling device of this utility model, the sampling frame 400 includes a frame portion 410 and a connecting portion 420. The frame portion 410 is a rectangular frame, and an alkali absorption sheet 20 is hung on the frame portion 410. The rectangular structure of the frame portion 410 can ensure the hanging and collection requirements of the alkali absorption sheet 20. The two sides of the frame portion 410 are slidably installed in the guide grooves of the two side guide rails 820. The connecting portion 420 is an arc-shaped rod, which is welded and fixed to the upper part of the connecting portion 420 and connected to the traction rope extending from the traction rope coil 810.

[0038] In one embodiment of the gas sampling device of this utility model, the controller 600 includes a control module and a timing module. The control module is electrically connected to the first drive mechanism 300 and the second drive mechanism 500, precisely controlling the movement of the first drive mechanism 300 and the second drive mechanism 500, thereby realizing the automated operation of the sampling device. The control module is electrically connected to the timing module, which can set and record the sampling and replacement time, thereby realizing the periodic replacement of the chloride ion collection bottle 10 and the alkali absorption sheet 20. It should be noted that the control module and the timing module can adopt existing structures and can be obtained through general commercial means, and will not be described in detail here.

[0039] In one embodiment of the gas sampling device of this utility model, the controller 600 further includes a communication module. The communication module is electrically connected to the control module and wirelessly connected to a mobile terminal. This design allows operators to remotely obtain sampling completion and replacement information via mobile devices (such as mobile phones, tablets, etc.). The timing module transmits timing information to the control module, which then controls the communication module to periodically send messages to the mobile terminal, reminding the operator to replace the chloride ion collection bottle 10 and the alkali absorption tablet 20. In this gas sampling device, under the control of the control module, the timing module and the communication module work together. By setting reminder time intervals, messages are automatically sent at each timing point to remind the operator to replace the chloride ion collection bottle 10 and the alkali absorption tablet 20. This achieves automation, precision, and remote control of the sampling process, significantly improving the performance and practicality of the sampling device. It should be noted that the communication module can use existing structural modules and can be obtained through general commercial means, which will not be elaborated further here.

[0040] This utility model discloses a gas sampling device for collecting samples of chloride ion content and sulfur dioxide in the atmospheric environment of a coastal nuclear power plant. A first drive mechanism moves the chloride ion collection bottle vertically, and a second drive mechanism moves the alkali absorber plate vertically. This eliminates the need for climbing to heights, avoiding the risks of personnel working at heights and the possibility of the chloride ion collection bottle or alkali absorber plate falling. It also facilitates the replacement of the chloride ion collection bottle and alkali absorber plate, improving replacement efficiency. This invention addresses the technical problem of existing sampling devices requiring climbing to heights for replacement of collection bottles and alkali absorber plates, which poses risks of falls or falling objects. Therefore, this utility model effectively overcomes some practical problems in the prior art and has high utilization value and practical significance.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A gas sampling device, characterized in that, include: Frame; A sampling platform, which can be lifted and installed on the frame, is used to place chloride ion collection bottles; The first drive mechanism is mounted on the frame and drives the sampling platform to rise and fall. A sampling rack, which can be lifted and installed on the frame, is used to hold alkali absorption tablets; The second drive mechanism is mounted on the frame and drives the sampling frame to rise and fall; A controller, which is electrically connected to a first drive mechanism and a second drive mechanism.

2. The gas sampling device according to claim 1, characterized in that, The sampling platform is vertically and flexibly mounted on the frame via a first lifting mechanism. The first lifting mechanism includes a lead screw and a guide rod. The lead screw is rotatably mounted on the frame and threadedly connected to the sampling platform. The guide rod is fixedly mounted on the frame and slidably connected to the sampling platform. The first driving mechanism is connected to the lead screw to drive the lead screw to rotate.

3. The gas sampling device according to claim 2, characterized in that, A limit block is also provided on the upper part of the guide rod.

4. The gas sampling device according to claim 2, characterized in that, The sampling station includes a bracket and a container. The bracket is threadedly connected to the lead screw and slidably connected to the guide rod. The container is fixedly connected to the bracket, and the chloride ion collection bottle is installed in the container.

5. The gas sampling device according to claim 4, characterized in that, Several observation holes are provided on the side of the accommodating cylinder.

6. The gas sampling device according to claim 4 or 5, characterized in that, The container is made of aluminum alloy.

7. The gas sampling device according to claim 4, characterized in that, A baffle plate is also provided above the receiving cylinder, and the baffle plate is fixedly installed on the frame.

8. The gas sampling device according to claim 1, characterized in that, The sampling platform is mounted on the frame in a height-adjustable manner via a second lifting mechanism. The second lifting mechanism includes a traction rope reel and a guide rail. The traction rope reel is installed at the output end of the second drive mechanism and connected to the sampling frame. The guide rail is fixedly installed on the frame, and the sampling frame is slidably connected to the guide rail.

9. The gas sampling device according to claim 1, characterized in that, The controller includes a control module and a timing module. The control module is electrically connected to the timing module and is also electrically connected to the first drive mechanism and the second drive mechanism.

10. The gas sampling device according to claim 1, characterized in that, The controller also includes a communication module, which is electrically connected to the control module and wirelessly connected to the mobile terminal.

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