Mercury measuring instrument

Abstract

The utility model relates to the field of detection equipment, in particular to a mercury analyzer, which comprises a rack and a first shell arranged on the rack, a combustion chamber is arranged in the first shell, one end of the first shell is provided with a sample inlet communicated with the combustion chamber, and the other end of the first shell is provided with a guide pipe; the mercury analyzer further comprises a second shell which is arranged on the first shell and located on one side of the guide pipe, a detection piece is arranged in the second shell, and a sample connector is arranged at the position, facing the guide pipe, of the second shell. A heating piece is arranged at the position of the guide pipe between the first shell and the second shell, the heating piece comprises a communicating pipe and a heating unit capable of heating the communicating pipe, and the communicating pipe is detachably connected with the guide pipe and the sample connector; the end, away from the sample connector, of the second shell is rotationally installed on the rack, so that the first shell can rotate to drive the sample connector to move away from the heating piece. According to the utility model, the installation mode of the first shell and the second shell is improved, so that the existing problems are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and in particular to a mercury analyzer. Background Technology

[0002] A mercury analyzer is a highly sensitive atomic absorption spectrometer used for mercury detection. Its main structure consists of a combustion chamber and a detection chamber. The sample is vaporized in the combustion chamber and guided to the detection chamber via a conduit for optical detection. For example, a rotary automatic mercury analyzer disclosed in utility model patent application number 201720202778.X connects the combustion chamber and the detection chamber via a rubber hose. Due to the considerable length of the rubber hose, it is easily affected by temperature during the vaporization process, thus affecting the detection results. Based on this, the applicant has proposed a mercury analyzer. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a mercury analyzer, which effectively solves the existing problems by improving the installation method of the first and second housings.

[0004] To address the aforementioned problems, this utility model provides a mercury analyzer, comprising a frame and a first housing mounted on the frame. The first housing contains a combustion chamber, with a sample inlet communicating with the combustion chamber at one end and a conduit at the other end. The mercury analyzer also includes a second housing disposed on the first housing side of the conduit. The second housing contains a detection element and a sample connector positioned facing the conduit. A heating element is positioned between the first and second housings at the conduit location. The heating element includes a connecting pipe and a heating unit capable of heating the connecting pipe. The connecting pipe is detachably connected to both the conduit and the sample connector. The end of the second housing furthest from the sample connector is rotatably mounted on the frame, allowing the first housing to rotate and move the sample connector away from the heating element.

[0005] Furthermore, the hinge position between the second housing and the frame is located on the side of the second housing facing the first housing.

[0006] Furthermore, the end of the second housing away from its hinge position with the frame is connected to the frame by a threaded fastener.

[0007] Furthermore, the threaded fastener includes a fixing block, the bottom of which is provided with a stud, and the frame is provided with a support column at the position corresponding to the threaded fastener. The top of the support column is provided with a threaded hole, and the stud can pass through the second housing and be screwed into the threaded hole.

[0008] Furthermore, the second housing and the heating element are mounted on a mounting plate, which is slidably connected to the frame along the radial direction of the conduit.

[0009] Furthermore, the mercury analyzer also includes a locking block having screws that can pass through the mounting plate and be screwed into and fixed to the frame.

[0010] Furthermore, the first housing is provided with a limiting part, and the frame is provided with a positioning part on the side of the limiting part facing the hinge position of the second housing and the frame. When the limiting part slides to abut against the positioning part, the positioning part stops the movement of the first housing.

[0011] Furthermore, the positioning part includes a fixed plate mounted on the frame and a positioning rod threaded onto the fixed plate, the positioning rod being able to abut against the limiting part.

[0012] This invention also provides an atomic absorption spectrometer, including the mercury analyzer described above.

[0013] The beneficial effect of this utility model is that it effectively solves the existing problems by improving the installation method of the first shell and the second shell. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective of the embodiment shown.

[0017] Figure 3 for Figure 1 The diagram shows the structural schematic of the sliding fit position between the first housing and the pricing unit.

[0018] Figure 4 for Figure 1 The above-view structural diagram of the embodiment is shown.

[0019] Figure 5 for Figure 1 A partial cross-sectional view of the fixed block position in the embodiment shown.

[0020] Figure 6 for Figure 1 A partial cross-sectional view of the locking block location in the illustrated embodiment.

[0021] The components are: 1. Frame; 2. First housing; 3. Guide tube; 4. Sample inlet; 5. Second housing; 6. Sample connector; 7. Connecting tube; 8. Heating element; 9. Fixing block; 10. Stud; 11. Support column; 12. Mounting plate; 13. Locking block; 14. Screw; 15. Limiting part; 16. Rotating shaft; 17. Fixing plate; 18. Positioning rod; 19. Guide rail; 20. Slide rail. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0023] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] In this utility model, such as Figures 1 to 6 As shown, a mercury analyzer is provided, including a frame 1 and a first housing 2 mounted on the frame 1. The first housing 2 has a combustion chamber, a sample inlet 4 communicating with the combustion chamber at one end, and a conduit 3 at the other end. The mercury analyzer also includes a second housing 5 disposed on the first housing 2 on one side of the conduit 3. The second housing 5 has a detection element inside and a sample connector 6 at a position facing the conduit 3. A heating element 8 is disposed between the first housing 2 and the second housing 5 at the position of the conduit 3. The heating element 8 includes a connecting pipe 7 and a heating unit capable of heating the connecting pipe 7. The connecting pipe 7 is detachably connected to the conduit 3 and the sample connector 6, respectively. The end of the second housing 5 away from the sample connector 6 is rotatably mounted on the frame 1, so that the first housing 2 can rotate to move the sample connector 6 away from the heating element 8.

[0028] As shown in the figure, the mercury analyzer of this invention uses a heating element 8 between the conduit 3 and the sample connector 6. By heating the connecting tube 7 with the heating element 8, the length of the connecting tube 7 can be shortened, and the possibility of the connecting tube 7 being affected by room temperature can be reduced. This invention also features a rotatable second housing 5, which allows the second housing 5 to be rotated away from the heating element 8 and the conduit 3 when the connecting tube 7 needs to be disassembled or installed. This provides the operator with more operating space, facilitating the disassembly and installation of the connecting tube 7.

[0029] It should be noted that the improvement of this utility model lies in the structure at the connection position of the connecting pipe, and there are no restrictions on the improvement of the structure of the combustion chamber and the detection chamber. Those skilled in the art can flexibly choose existing technical structures when implementing this invention.

[0030] In the illustrated embodiment, the heating element is a heating wire tube, through which a connecting tube passes, thereby heating the connecting tube via the heating element. This is not intended to limit the present invention; in optional embodiments, other forms of heating elements may be used, such as a heating film.

[0031] In the illustrated embodiment, the sample connector is a socket-type sample connector, that is, the connecting tube is connected to the sample connector by insertion; for the structure of the sample connector, in optional embodiments, other forms may also be used, such as a tube-type sample connector, in which the sample connector is inserted into the inside of the connecting tube.

[0032] In a preferred embodiment, more specifically regarding the structure of this utility model, the hinge position between the second housing 5 and the frame 1 is located on the side of the center of the second housing 5 facing the first housing 2.

[0033] As shown in the figure, the rear end of the second housing 5 is provided with a connecting hole, and the frame 1 is provided with a rotating shaft 16 passing through the connecting hole. The rotating shaft 16 is located on the side of the center of the second housing 5 close to the first housing 2, so that when the second housing 5 rotates outward, the side of the second housing 5 can quickly open up the distance from the heating element 8, which is convenient for operation.

[0034] In a preferred embodiment, more specifically regarding the structure of this utility model, the end of the second housing 5 away from its hinge position with the frame 1 is connected to the mounting bracket via a threaded fastener.

[0035] As shown in the figure, the second housing 5 is connected to the frame using threaded fasteners, which helps maintain the stability of the second housing 5 during testing. When it is necessary to rotate the second housing 5, simply remove the threaded fasteners.

[0036] In a preferred embodiment, more specifically regarding the structure of this utility model, the threaded fastener includes a fixing block 9, the bottom of the fixing block 9 is provided with a stud 10, the frame is provided with a support column 11 at the position corresponding to the threaded fastener, the top of the support column 11 is provided with a threaded hole, and the stud 10 can pass through the second housing 5 and be screwed and fixed in the threaded hole.

[0037] As shown in the figure, when the second housing 5 is in the installation position and can be tested, the second housing 5 can be fixed by fixing the stud 10 of the fixing block 9 into the threaded hole.

[0038] In a preferred embodiment, more specifically regarding the structure of this utility model, the second housing 5 and the heating element 8 are mounted on the mounting plate 12, and the mounting plate 12 is slidably connected to the frame 1 along the radial direction of the conduit 3.

[0039] As shown in the figure, by setting the mounting plate 12 to be able to slide laterally, when it is necessary to disassemble or assemble the connecting pipe 7, after rotating the first housing 2 outward, the mounting plate 12 can be pulled, which can make the heating element 8 move outward as a whole (as shown by the arrow in the figure), further increasing the distance between the side of the second housing 5 and the heating element 8, so as to further improve the spaciousness of the operating space.

[0040] As shown in the figure, the frame 1 is equipped with a guide rail 19 with a sliding groove, and the bottom of the mounting plate is equipped with a slide rail 20 that slides into the sliding groove.

[0041] In a preferred embodiment, specifically regarding the structure of this invention, the mercury analyzer further includes a locking block 13. The locking block 13 has a screw 14 that can pass through the mounting plate 12, and the screw 14 can be screwed onto and fixed to the frame 1. As shown in the figure, by providing the locking block 13, the mounting plate 12 can be moved to the detection position of the first housing 2. During detection, the locking block 13 can fix the mounting plate 12 to the frame 1, thereby preventing movement of the first housing 2 and the heating element 8.

[0042] In a preferred embodiment, specifically regarding the structure of this utility model, the first housing 2 is provided with a limiting part 15, and the frame is provided with a positioning part on the side of the limiting part 15 facing the hinge position of the second housing 5 and the frame. When the limiting part 15 slides to abut against the positioning part, the positioning part stops the movement of the first housing 2. As shown in the figure, by providing the limiting part 15 and the positioning part, after the disassembly of the connecting pipe 7 is completed, when the mounting plate 12 is moved to the detection position of the first housing 2, the limiting part 15 and the positioning part can be used for positioning, so as to facilitate fixing the position of the first housing 2.

[0043] In a preferred embodiment, specifically regarding the structure of this utility model, the positioning part includes a fixed plate 17 mounted on the frame and a positioning rod 18 threaded onto the fixed plate 17. The positioning rod 18 can abut against the limiting part 15. As shown in the figure, the position of the positioning rod 18 abutting against the positioning part can be adjusted by rotating the positioning rod 18, thereby adjusting the installation position of the first housing 2 during detection.

[0044] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0045] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A mercury analyzer, characterized in that, It includes a frame, a first housing mounted on the frame, a combustion chamber inside the first housing, an inlet communicating with the combustion chamber at one end of the first housing, and a conduit at the other end; The mercury analyzer also includes a second housing disposed on one side of the first housing located on the conduit, the second housing containing a detection element, and the second housing having a sample connector positioned facing the conduit; A heating element is provided between the first housing and the second housing at the location of the conduit. The heating element includes a connecting pipe and a heating unit capable of heating the connecting pipe. The connecting pipe is detachably connected to the conduit and the sample connector, respectively. The second housing is rotatably mounted on the frame at the end away from the sample connector, so that the first housing can rotate to move the sample connector away from the heating element.

2. A mercury analyzer according to claim 1, characterized in that, The second housing is hinged to the frame at a position on the side of the center of the second housing facing the first housing.

3. A mercury analyzer according to claim 1, characterized in that, The end of the second housing away from its hinge position with the frame is connected to the frame by threaded fasteners.

4. A mercury analyzer according to claim 3, characterized in that, The threaded fastener includes a fixing block, the bottom of which is provided with a stud, and the frame is provided with a support column at the position corresponding to the threaded fastener. The top of the support column is provided with a threaded hole, and the stud can pass through the second housing and be screwed into the threaded hole.

5. A mercury analyzer according to claim 1, characterized in that, The second housing and the heating element are mounted on a mounting plate, which is slidably connected to the frame along the radial direction of the conduit.

6. A mercury analyzer according to claim 5, characterized in that, The mercury analyzer also includes a locking block having screws that can pass through the mounting plate and be screwed into and fixed to the frame.

7. A mercury analyzer according to claim 5 or 6, characterized in that, The first housing is provided with a limiting part, and the frame is provided with a positioning part on the side of the limiting part facing the hinge position of the second housing and the frame. When the limiting part slides to abut against the positioning part, the positioning part stops the first housing from moving.

8. A mercury analyzer according to claim 7, characterized in that, The positioning part includes a fixed plate mounted on the frame and a positioning rod threaded onto the fixed plate, the positioning rod being able to abut against the limiting part.

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