Variable-temperature trapping type mercury measuring device

Abstract

The utility model relates to the technical field of mercury element detection equipment, and provides a variable temperature trapping type mercury measuring device which comprises a mercury measuring instrument body and a side plate, the side plate is fixed at the lower end of the side surface of the mercury measuring instrument body, a feeding tank is arranged on the surface of the side plate, a middle bottle is fixed on the side surface of the mercury measuring instrument body, and a quantitative injection assembly is arranged on the feeding tank. The heating assembly is arranged at the bottom of the middle bottle, the flow dividing assemblies are arranged on the two sides of the middle bottle, the outer frame is fixed outside the feeding tank, the upper end of the outer frame is rotationally connected with the top frame, concave plates are arranged on the surfaces of the two sides of the outer frame, and convex plates are arranged on the surfaces of the two sides of the top frame. According to the technical scheme, the problems that the solution is easy to cause pollution in the mercury digestion process because the digested mercury is in a liquid form in the related technology are solved; in addition, the problem that mercury measurement is inaccurate due to the fact that the process of mercury digestion, reduction and steam output is a dynamic continuous process and mercury is output successively is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mercury element detection equipment technical field, specifically, relates to a kind of temperature-variable trapping type mercury measuring device. BACKGROUND

[0002] Mercury and its compounds are highly toxic, into the natural environment is easy to cause environmental pollution and harm to people. The existing mercury test method is to digest mercury, convert to ion state, reduce to elemental mercury in strong acidic medium, and then send elemental mercury into the detector with carrier gas, measure mercury vapor, the principle is: mercury vapor has strong absorption effect on the resonance line of wavelength 253.7nm. The existing problem is that the digestion of mercury is in liquid form, and the solution in the digestion process of mercury is easy to cause pollution. In addition, the digestion, reduction and vapor output process of mercury is a dynamic continuous process, and mercury is output continuously, which is not accurate for mercury measurement.

[0003] Therefore, improvements are made to address the above problems. SUMMARY

[0004] The utility model provides a kind of temperature-variable trapping type mercury measuring device, solve the digestion of mercury in the related art is liquid form, and the solution in the digestion process of mercury is easy to cause pollution. In addition, the digestion, reduction and vapor output process of mercury is a dynamic continuous process, and mercury is output continuously, which is not accurate for mercury measurement.

[0005] The technical scheme of the utility model is as follows: including

[0006] Mercury analyzer body and side plate, the side plate is fixed in the lower end of the side surface of the mercury analyzer body;

[0007] Input tank, the input tank is arranged on the surface of the side plate;

[0008] Intermediate bottle and quantitative injection assembly, the intermediate bottle is fixed in the side surface of the mercury analyzer body, and the quantitative injection assembly is arranged on the input tank;

[0009] Heating assembly, the heating assembly is arranged at the bottom of the intermediate bottle;

[0010] Flow dividing assembly, the flow dividing assembly is arranged on both sides of the intermediate bottle;

[0011] The quantitative injection assembly includes outer frame, the outer frame is fixed outside the input tank, the outer frame upper end is rotatably connected with top frame, the outer frame both side surfaces are provided with recessed plate, and the top frame both side surfaces are provided with convex plate.

[0012] As a further technical scheme, the top frame is internally provided with an internally threaded block, a stud is screw-connected in the internally threaded block, a piston plate is rotationally connected to the lower end of the stud, a pair of sealing rings are sleeved on the piston plate, and an injection pipe is connected between the input tank and the intermediate bottle.

[0013] As a further technical scheme, the heating assembly comprises a base, the base is screw-connected at the bottom of the intermediate bottle, the surface of the base is provided with a boss, and a plurality of heating coils are arranged in the boss.

[0014] As a further technical scheme, the shunt assembly comprises a tee pipe, the tee pipe is connected at the top of the intermediate bottle, first control valves are arranged at the two ends of the tee pipe, an outer shell is plug-connected to one end of the tee pipe, and honeycomb adsorbent is plug-connected to the side surface of the outer shell.

[0015] As a further technical scheme, the side surface of the honeycomb adsorbent is provided with exhaust holes, the surface of the side plate is provided with a capture container, the capture container is internally provided with a partition layer, and a one-way pipe is connected to the side surface of the capture container.

[0016] As a further technical scheme, one end of the one-way pipe is connected between the capture container and the partition layer, the side surface of the partition layer is connected with an access pipe, one end of the access pipe penetrates through the capture container and is connected with the inlet of the mercury analyzer body, and a second control valve is arranged on the access pipe.

[0017] As a further technical scheme, the side surface of the base is polygonal in structure.

[0018] As a further technical scheme, the bottom of the convex plate is plug-connected in the concave plate, and the connection between the convex plate and the concave plate is a spherical structure surface.

[0019] As a further technical scheme, the outer wall of the intermediate bottle is an inclined structure surface, and the diameter of the top of the intermediate bottle is smaller than that of the bottom.

[0020] The working principle and beneficial effects of the utility model are as follows:

[0021] 1. The utility model discloses a quantitative input assembly, which can operate the piston plate through the screw column to extrude mercury into the intermediate bottle, can manually control the extrusion amount, and avoids waste caused by excessive extrusion.

[0022] 2. This utility model is equipped with a separation component. Through the interaction of structures such as a three-way pipe, outer shell, honeycomb adsorbent material, exhaust hole, capture container, one-way pipe and addition pipe, liquid nitrogen can be added to react the vaporized mercury into powder at low temperature, which is convenient for the mercury analyzer to be drawn in for detection. Excess gas can be discharged after purification. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is an isometric drawing of the present invention;

[0026] Figure 3 This is an isometric sectional view of the present invention;

[0027] Figure 4 This is an isometric sectional view of the present invention from another perspective;

[0028] Figure 5 Appendix to this utility model Figure 3 Enlarged view of part A in the middle;

[0029] Figure 6 Appendix to this utility model Figure 4 Enlarged view of part B in the middle section;

[0030] In the diagram: 1. Mercury analyzer body; 2. Side plate; 3. Input tank; 4. Intermediate bottle; 5. Quantitative injection assembly; 5-1. Outer frame; 5-2. Top frame; 5-3. Concave plate; 5-4. Convex plate; 5-5. Internal threaded block; 5-6. Stud; 5-7. Piston plate; 5-8. Sealing ring; 5-9. Injection tube; 6. Heating assembly; 6-1. Base; 6-2. Boss; 6-3. Heating coil; 7. Diverter assembly; 7-1. T-connector; 7-2. First control valve; 7-3. Outer shell; 7-4. Honeycomb absorbent material; 7-5. Exhaust port; 7-6. Capture container; 7-7. Partition; 7-8. One-way tube; 7-9. Inlet tube; 7-10. Second control valve. Detailed Implementation

[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0032] likeFigures 1-6 The embodiment shown provides a variable-temperature trapping type mercury measuring device, which comprises

[0033] a mercury measuring device body 1 and a side plate 2 fixed at the lower end of the side surface of the mercury measuring device body 1;

[0034] a pouring tank 3 arranged on the surface of the side plate 2;

[0035] an intermediate bottle 4 fixed at the side surface of the mercury measuring device body 1 and a quantitative injection assembly 5 arranged on the pouring tank 3;

[0036] a heating assembly 6 arranged at the bottom of the intermediate bottle 4;

[0037] a shunt assembly 7 arranged on both sides of the intermediate bottle 4;

[0038] The quantitative injection assembly 5 comprises an outer frame 5-1 fixed outside the pouring tank 3, a top frame 5-2 rotatably connected to the upper end of the outer frame 5-1, recessed plates 5-3 arranged on both side surfaces of the outer frame 5-1, convex plates 5-4 arranged on both side surfaces of the top frame 5-2, an internally-threaded block 5-5 arranged in the top frame 5-2, a stud 5-6 screwed into the internally-threaded block 5-5, a piston plate 5-7 rotatably connected to the lower end of the stud 5-6, a pair of sealing rings 5-8 sleeved on the piston plate 5-7, and an injection pipe 5-9 connected between the pouring tank 3 and the intermediate bottle 4.

[0039] In the embodiment, the quantitative injection assembly 5 is designed to achieve the effect of quantitative addition of liquid mercury. The outer frame 5-1 is arranged on the outer surface of the pouring tank 3 and rotatably connected to the top frame 5-2 at the upper end. The recessed plates 5-3 and the convex plates 5-4 are arranged on the outer frame 5-1 and the top frame 5-2, respectively, to limit the top frame 5-2. The internally-threaded block 5-5 is arranged on the top frame 5-2 and screwed with the stud 5-6. The piston plate 5-7 is arranged at the lower end of the stud 5-6 and in the pouring tank 3. The stud 5-6 can control the piston plate 5-7 to move up and down to squeeze out the mercury. The injection pipe 5-9 is connected between the pouring tank 3 and the intermediate bottle 4 to flow into the intermediate tank. The sealing rings 5-8 are arranged on the piston plate 5-7 to increase the sealing property of the piston plate 5-7.

[0040] Further, the heating assembly 6 comprises a base 6-1 screwed and connected at the bottom of the intermediate bottle 4. The base 6-1 is provided with a boss 6-2, and a plurality of heating coils 6-3 are arranged in the boss 6-2.

[0041] In this embodiment, in order to realize the effect of heating mercury and convenient cleaning, the heating assembly 6 is designed, the base 6-1 is screwed and connected at the bottom of the middle bottle 4, the boss 6-2 and the heating coil 6-3 are arranged on the base 6-1, and the base 6-1 can generate heat to heat the mercury.

[0042] Further, the shunt assembly 7 includes a three-way pipe 7-1 connected at the top of the middle bottle 4, the first control valve 7-2 is arranged at both ends of the three-way pipe 7-1, the shell 7-3 is inserted and connected at one end of the three-way pipe 7-1, the honeycomb adsorbent 7-4 is inserted and arranged on the side surface of the shell 7-3, the exhaust hole 7-5 is arranged on the side surface of the honeycomb adsorbent 7-4, the capture container 7-6 is arranged on the surface of the side plate 2, the partition layer 7-7 is arranged in the capture container 7-6, the one-way pipe 7-8 is connected to the side surface of the capture container 7-6 and the partition layer 7-7, the access pipe 7-9 is connected to the side surface of the partition layer 7-7, one end of the access pipe 7-9 penetrates through the capture container 7-6 and is connected to the inlet of the mercury analyzer body 1, and the second control valve 7-10 is arranged on the access pipe 7-9.

[0043] In this embodiment, in order to realize the effect of detecting and discharging the gasified mercury, the shunt assembly 7 is designed, the three-way valve and the two first control valves 7-2 are arranged at the upper end of the middle bottle 4, and the switches at both ends are controlled, the shell 7-3 is inserted in one side of the three-way pipe 7-1, the detachable honeycomb adsorbent 7-4 is arranged in the shell 7-3, the exhaust hole 7-5 is arranged on the surface of the honeycomb adsorbent 7-4, the discharged gas can be adsorbed and purified, the capture container 7-6 is connected to the other end of the three-way pipe 7-1, the partition layer 7-7 is arranged in the capture container 7-6, the partition layer 7-7 divides the capture container 7-6 into two spaces, the space outside the partition layer 7-7 is connected to the one-way pipe 7-8, which is used for injecting low-temperature liquid nitrogen to make the inside of the partition layer 7-7 in a low-temperature state, the entering gas is captured, and the access pipe 7-9 and the second control valve 7-10 are arranged, the mercury enters the mercury analyzer body 1 through the access pipe 7-9 to be detected.

[0044] Further, the side surface of the base 6-1 is polygonal structure.

[0045] In this embodiment, the polygonal structure facilitates the screwing and dismounting of the base 6-1.

[0046] Further, the convex plate 5-4 is inserted into the concave plate 5-3, and the connection between the convex plate 5-4 and the concave plate 5-3 is a spherical structure surface.

[0047] In this embodiment, the spherical structure surface facilitates the sliding of the convex plate 5-4 into and out of the concave plate 5-3.

[0048] Further, the outer wall of the intermediate bottle 4 is an inclined structure surface, and the top of the intermediate bottle 4 has a smaller diameter than the bottom.

[0049] In the embodiment, the inclined structure surface facilitates the upward flow of the gas and facilitates cleaning.

[0050] When detection is needed, liquid nitrogen is injected into the space between the capture container 7-6 and the partition 7-7 through the one-way pipe 7-8, mercury liquid is added into the input tank 3, the top frame 5-2 is pushed, the convex plate 5-4 is inserted into the concave plate 5-3, then the stud 5-6 is screwed to control the piston plate 5-7 to enter the input tank 3, according to the required amount, the stud 5-6 is screwed to control the piston plate 5-7 to move downward, the mercury liquid is injected into the intermediate bottle 4, the heating coil 6-3 is started to generate heat for the base 6-1 to start heating, after gasification, the second control valve 7-10 on one side of the capture container 7-6 is first opened, the gas is captured into powder after entering, then the second control valve 7-10 is opened to suck the powder into the mercury detector body 1 for detection, the remaining gas is opened through the first control valve 7-2 on one side of the shell 7-3, is adsorbed and purified through the honeycomb adsorption material 7-4, and is discharged at the exhaust hole 7-5.

[0051] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A temperature swing capture mercury measurement device, comprising: Comprising A mercury analyzer body (1) and a side plate (2) fixed at the lower end of the side surface of the mercury analyzer body (1); A pouring tank (3) provided on the surface of the side plate (2); An intermediate bottle (4) fixed on the side surface of the mercury analyzer body (1) and a quantitative injection assembly (5) provided on the pouring tank (3); A heating assembly (6) provided at the bottom of the intermediate bottle (4); A shunt assembly (7) provided on both sides of the intermediate bottle (4); The quantitative injection assembly (5) comprises an outer frame (5-1) fixed outside the pouring tank (3), a top frame (5-2) rotatably connected to the upper end of the outer frame (5-1), and recessed plates (5-3) provided on both side surfaces of the outer frame (5-1), and convex plates (5-4) provided on both side surfaces of the top frame (5-2).

2. The device of claim 1, wherein, An inner threaded block (5-5) is provided in the top frame (5-2), a threaded rod (5-6) is screwed in the inner threaded block (5-5), a piston plate (5-7) is rotatably connected to the lower end of the threaded rod (5-6), a pair of sealing rings (5-8) are sleeved on the piston plate (5-7), and an injection pipe (5-9) is connected between the pouring tank (3) and the intermediate bottle (4).

3. The device of claim 1, wherein, The heating assembly (6) comprises a base (6-1) screw-connected to the bottom of the intermediate bottle (4), a boss (6-2) provided on the surface of the base (6-1), and a plurality of heating coils (6-3) provided in the boss (6-2).

4. The device of claim 1, wherein, The shunt assembly (7) comprises a tee (7-1) connected to the top of the intermediate bottle (4), first control valves (7-2) provided at both ends of the tee (7-1), and a shell (7-3) plug-connected to one end of the tee (7-1), and a honeycomb adsorbent (7-4) plug-connected to the side surface of the shell (7-3).

5. The device of claim 4, wherein, An exhaust hole (7-5) is formed in the side surface of the honeycomb adsorbent (7-4), a capture container (7-6) is provided on the surface of the side plate (2), a partition layer (7-7) is provided inside the capture container (7-6), and a one-way pipe (7-8) is connected to the side surface of the capture container (7-6).

6. The device of claim 5, wherein, One end of the one-way pipe (7-8) is connected between the capture container (7-6) and the partition layer (7-7), an access pipe (7-9) is connected to the side surface of the partition layer (7-7), one end of the access pipe (7-9) penetrates through the capture container (7-6) and is connected to the inlet of the mercury analyzer body (1), and a second control valve (7-10) is provided on the access pipe (7-9).

7. The device of claim 3, wherein the device is configured to operate at a temperature of about 20°C to about 40°C. The side surface of the base (6-1) is polygonal in structure.

8. The device of claim 1, wherein, The convex plate (5-4) is plug-connected in the recessed plate (5-3), and the connection between the convex plate (5-4) and the recessed plate (5-3) is a spherical structure.

9. The device of claim 1, wherein, The outer wall of the intermediate bottle (4) is an inclined structure surface, and the top diameter of the intermediate bottle (4) is smaller than the bottom diameter.

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