Hydrofluoric acid closed sampler

Abstract

The utility model discloses a hydrofluoric acid closed sampler, which comprises a closed box body and a negative pressure suction port communicated with the closed box body, a medium circulation channel is arranged in the closed box body, and a medium inlet and a medium outlet are respectively arranged on the closed box body at the medium circulation channel; a lining polytetrafluoroethylene integrated plug valve is mounted at the top end of the closed box body; a sampling opening is formed in the closed box body; the sampling port is communicated with the medium circulation channel; a bearing table is mounted outside the medium flowing channel in the closed box body; a PFA sampling bottle is detachably arranged on the bearing table; the sampler is easy to operate, tight in sealing, reasonable in structure, free of flowing dead zones and capable of sampling some poisonous, harmful and corrosive media in a closed environment; the device is simple in structure, convenient to operate and worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorine chemical sampling, in particular to a closed hydrofluoric acid sampler. Background Art

[0002] With the gradual development of the fluorine chemical industry, the sampling of some toxic and highly corrosive media in the production process of the fluorine chemical industry has to be taken seriously. In order to ensure the safety of sampling by on-site employees and for environmental protection requirements, a closed sampler for a series of toxic, highly corrosive, and easily vaporized media such as hydrofluoric acid is needed. The existing hydrofluoric acid closed sampler is not sealed tightly and has a flow dead zone. It is impossible to sample some toxic, harmful, and corrosive media in a closed environment, and the safety is low. For this reason, we propose a hydrofluoric acid closed sampler. Utility Model Content

[0003] The purpose of the utility model is to provide a closed hydrofluoric acid sampler to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed sampler for hydrofluoric acid, comprising a closed box and a negative pressure suction port connected to the closed box, a medium circulation channel is arranged inside the closed box, and a medium inlet and a medium outlet are respectively arranged on the closed box at the medium circulation channel; a polytetrafluoroethylene-lined integrated stopcock is installed on the top of the closed box; a sampling port is installed on the closed box; the sampling port is connected to the medium circulation channel; a supporting platform is installed in the closed box outside the medium circulation channel; a PFA sampling bottle is detachably arranged on the supporting platform.

[0005] Preferably, the sealed box is made of PP material.

[0006] Preferably, the medium inlet and the medium outlet are arranged opposite to each other, and polytetrafluoroethylene-lined flanges are installed on the medium inlet and the medium outlet.

[0007] Preferably, a drain pipe is connected to the bottom end of the sealed box, and a valve is provided on the drain pipe.

[0008] Preferably, an observation door is provided in front of the sealed box, and the observation door is made of transparent organic glass.

[0009] Preferably, the outer circumference of the PFA sampling bottle is provided with scale lines.

[0010] Beneficial effects: Compared with the prior art, the beneficial effects of the utility model are: the sampler is simple to operate, tightly sealed, has a reasonable structure, has no flow dead zone, and can realize the sampling of some toxic, harmful and corrosive media in a closed environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the overall structure of a hydrofluoric acid closed sampler.

[0012] Figure 2 The utility model is a schematic diagram of the side structure of a hydrofluoric acid closed sampler.

[0013] In the attached figure: 1-sealed box, 2-medium inlet, 3-medium outlet, 4-PTFE-lined integrated stopcock, 5-sampling port, 6-PFA sampling bottle, 7-carrying platform, 8-drain pipe, 9-negative pressure suction port, 10-observation door, 11-PTFE-lined flange. DETAILED DESCRIPTION

[0014] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0015] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0016] Example

[0017] Please refer to the drawings in the specification. In the embodiment of the utility model, a closed sampler for hydrofluoric acid includes a closed box 1 and a negative pressure suction port 9 connected to the closed box 1, a medium circulation channel is arranged inside the closed box 1, and a medium inlet 2 and a medium outlet 3 are respectively arranged on the closed box 1 at the medium circulation channel; a polytetrafluoroethylene-lined integrated stopcock 4 is installed on the top of the closed box 1; a sampling port 5 is installed on the closed box 1; the sampling port 5 is connected to the medium circulation channel; a support platform 7 is installed outside the medium circulation channel in the closed box 1; a PFA sampling bottle 6 is detachably arranged on the support platform 7.

[0018] Furthermore, the sealed box 1 is made of PP material.

[0019] Furthermore, the medium inlet 2 and the medium outlet 3 are arranged opposite to each other, and polytetrafluoroethylene-lined flanges 11 are installed on the medium inlet 2 and the medium outlet 3 .

[0020] Furthermore, the bottom end of the sealed box 1 is connected to a drain pipe 8, and a valve is provided on the drain pipe 8 to drain some media that may overflow during the sampling process.

[0021] Furthermore, an observation door 10 is provided in front of the sealed box 1, and the observation door 10 is made of transparent organic glass, which is convenient for observing the sampling status of the internal PFA sampling bottle.

[0022] Furthermore, the outer circumference of the PFA sampling bottle 6 is provided with scale lines.

[0023] Usage process:

[0024] When in use, when taking samples, first open the observation door 10, install the PFA sampling bottle 6 to the position of the sampling port 5, connect the negative pressure suction port to the external negative pressure equipment and open it, so that the closed box 1 is always in a negative pressure state, and then open the polytetrafluoroethylene-lined integrated stopcock 4 of the sampler, and the medium flows into the PFA sampling bottle 6. After the sampling is completed, close the polytetrafluoroethylene-lined integrated stopcock 4, and then remove the PFA sampling bottle 6, close the negative pressure pipeline on site, and complete the sampling; the sampler is simple to operate, tightly sealed, reasonably structured, and has no flow dead zone, and can realize the sampling of some toxic, harmful, and corrosive media in a closed environment.

[0025] In the above process, the sampler is easy to operate, tightly sealed, reasonably structured, and has no flow dead zone, and can realize sampling of some toxic, harmful, and corrosive media in a closed environment; the present application has a simple structure, strong practicality, and simple operation, which is worthy of promotion.

[0026] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0027] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A hydrofluoric acid closed sampler, characterized in that: The invention comprises a sealed box (1) and a negative pressure suction port (9) connected to the sealed box (1); a medium circulation channel is arranged inside the sealed box (1), and a medium inlet (2) and a medium outlet (3) are arranged on the sealed box (1) at the medium circulation channel; a polytetrafluoroethylene-lined integrated stopcock (4) is installed at the top of the sealed box (1); a sampling port (5) is installed on the sealed box (1); the sampling port (5) is connected to the medium circulation channel; a support platform (7) is installed outside the medium circulation channel in the sealed box (1); a PFA sampling bottle (6) is detachably arranged on the support platform (7).

2. A hydrofluoric acid closed sampler according to claim 1, characterized in that: The sealed box (1) is made of PP material.

3. A hydrofluoric acid closed sampler according to claim 1, characterized in that: The medium inlet (2) and the medium outlet (3) are arranged opposite to each other, and polytetrafluoroethylene-lined flanges (11) are installed on the medium inlet (2) and the medium outlet (3).

4. A hydrofluoric acid closed sampler according to claim 1, characterized in that: The bottom end of the sealed box (1) is connected and plugged with a drain pipe (8), and a valve is provided on the drain pipe (8).

5. A hydrofluoric acid closed sampler according to claim 1, characterized in that: An observation door (10) is arranged directly in front of the sealed box (1), and the observation door (10) is made of transparent organic glass.

6. A hydrofluoric acid closed sampler according to claim 1, characterized in that: The outer circumference of the PFA sampling bottle (6) is provided with scale lines.

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