CN220872161U - Nitric acid safety sampler - Google Patents
Nitric acid safety sampler Download PDFInfo
- Publication number
- CN220872161U CN220872161U CN202420498862.0U CN202420498862U CN220872161U CN 220872161 U CN220872161 U CN 220872161U CN 202420498862 U CN202420498862 U CN 202420498862U CN 220872161 U CN220872161 U CN 220872161U
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- Prior art keywords
- liquid
- pipe
- nitric acid
- port
- vent
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- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910017604 nitric acid Inorganic materials 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 138
- 238000003860 storage Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 238000005213 imbibition Methods 0.000 claims 3
- 238000005070 sampling Methods 0.000 abstract description 27
- 238000009423 ventilation Methods 0.000 description 10
- 239000002253 acid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 1
- 239000000006 Nitroglycerin Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229960003711 glyceryl trinitrate Drugs 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of samplers, in particular to a nitric acid safety sampler, which comprises a liquid suction funnel, wherein the liquid suction funnel comprises a containing cavity at the upper part and a liquid suction pipe which is arranged at the bottom of the containing cavity and communicated with the containing cavity, the top of the containing cavity is provided with an air outlet, the lower part of the containing cavity is provided with a liquid guide port, a liquid guide pipe is arranged on the liquid guide pipe, an emptying port is arranged on the liquid guide pipe and is downwards arranged, the emptying port is vertically and downwards communicated with an emptying pipe, the liquid guide pipe and the emptying pipe form a three-way structure, the liquid guide pipe is obliquely arranged, the higher end of the liquid guide pipe is communicated with the liquid guide port, the lower end of the liquid guide pipe is communicated with a liquid measuring pipe, the lower part of the liquid measuring pipe is provided with a liquid outlet, and a plug valve is arranged on the liquid outlet; the liquid storage tank comprises a tank body and an upper cover, wherein the upper cover is provided with a return port and a vent. The utility model has the storage function, can realize quantitative and safe sampling for a plurality of times, has accurate sampling quantity, simple structure and convenient use, and is more suitable for laboratory small-volume sampling.
Description
Technical Field
The utility model relates to the technical field of samplers, in particular to a nitric acid safety sampler.
Background
Nitric acid is strong acid with strong oxidizing property and corrosiveness, belongs to unitary inorganic strong acid, is one of six inorganic strong acids, and is also an important chemical raw material. The chemical formula of the nitric acid is HNO 3, the nitric acid is easy to dissolve in water, and the nitric acid aqueous solution is commonly called nitrate water or ammonia nitrogen water. The nitric acid has wide application, and can be used for manufacturing nitrogenous fertilizer, aqua regia, nitrate, nitroglycerin, nitrocellulose, nitrobenzene and the like, and also used for industries of pharmacy, dye, explosive and the like. Nitric acid is used as a strong oxidant, can seriously passivate steel, and can generate oxidation-reduction reaction with various substances. Nitric acid is widely applied in the fields of industry, agriculture, medicine and the like, and is an important industrial product and a reagent commonly used in laboratories. Nitric acid is highly oxidizing and corrosive. Pure nitric acid is colorless oily liquid with pungent smell, has low boiling point and is easy to volatilize, and the pure nitric acid is white fog when meeting water vapor in air; nitric acid with a concentration of more than 98% is called fuming nitric acid, because the nitric acid is more volatile and forms white fog when meeting humid air; and has a choking pungent odor whether pure nitric acid or concentrated nitric acid. Therefore, nitric acid and nitric acid solution need to wear protective articles such as protective glasses, rubber gloves and the like when sampling, so as to avoid contact with skin or eyes.
In laboratory, nitric acid is often needed to perform experiments, such as preparing solutions, and the like, and the laboratory has the characteristics of small sampling amount, accurate sampling requirement and high sampling times, so that an instrument which is safe and simple to operate and convenient to use is needed.
The utility model patent grant publication No. CN209464842U, publication date 2019.10.08, disclose an acid liquid sampler, including the sampling tube, sampling bottle and flexible cover, wherein the lower interface of sampling tube is fixed in the bottleneck department of sampling bottle upper end, the intercommunication has the pipette on the lateral wall of sampling tube, the import of pipette is inserted and is established in the acid liquid storage bucket, the intercommunication has first pipeline and second pipeline on the top cap of sampling tube, the other end of first pipeline and second pipeline is linked together with the lower extreme of flexible cover, the junction of first pipeline and flexible cover is equipped with one-way admission valve, the junction of second pipeline and flexible cover is equipped with one-way discharge valve, still be equipped with suction connection valve and air suction valve on the first pipeline, be equipped with discharge connection valve and air discharge valve on the second pipeline. Although the device can avoid skin contact with acid liquor or human body inhalation of irritant gas during sampling, quantitative sampling of a small-volume sample is difficult to realize, and if the required sample amount is accurate, a precise sampling tool is still required to conduct secondary sampling, so that potential safety hazards exist; in addition, the device needs to be detachably connected in a sealing way with the sampling bottle in the actual operation process, and the risk of air leakage and safety problems exists in the process of installing, using and detaching the sampling bottle.
Disclosure of utility model
The utility model aims to solve the technical problems of providing a nitric acid safety sampler which has a storage function, can realize quantitative and safe sampling for a plurality of times, has accurate sampling quantity, simple structure and convenient use, and is more suitable for laboratory small-volume sampling.
The utility model discloses a nitric acid safety sampler, which comprises a liquid suction funnel, wherein the liquid suction funnel comprises a containing cavity at the upper part and a liquid suction pipe which is arranged at the bottom of the containing cavity and is communicated with the containing cavity, an air outlet is arranged at the top of the containing cavity, a liquid guide port is arranged at the lower part of the containing cavity, a liquid guide pipe is arranged on the liquid guide pipe, an evacuation port is arranged on the liquid guide pipe, the evacuation port is downwards arranged, the evacuation port is vertically downwards communicated with an evacuation pipe, the liquid guide pipe and the evacuation pipe form a three-way structure, the liquid guide pipe is obliquely arranged, the higher end of the liquid guide pipe is communicated with the liquid guide port, the lower end of the liquid guide pipe is communicated with a liquid measuring pipe, the lower part of the liquid measuring pipe is provided with a liquid outlet, and a plug valve is arranged on the liquid outlet.
Still include the liquid storage pot, the liquid storage pot includes a jar body and upper cover, and upper cover detachably sealing mounting is on the jar body, and the upper cover is equipped with backward flow mouth and air vent, backward flow mouth intercommunication evacuation pipe, is equipped with the ventilation plug on the air vent.
The liquid suction pipe penetrates through the upper cover and stretches into the tank body, and the outer wall of the liquid suction pipe is connected with the upper cover in a sliding sealing manner; the height of the liquid suction pipe is convenient to adjust, and the liquid suction pipe is ensured to be positioned below the liquid level.
The liquid suction pipe is provided with a liquid suction valve, the emptying pipe is provided with an emptying valve, and a liquid guide valve is arranged between the liquid guide port and the emptying port.
Preferably, the vent plug is threadably connected to the vent.
Preferably, the ventilation plug comprises a plug body and a handheld part arranged on the upper part of the plug body, wherein threads are arranged on the plug body, a ventilation groove is arranged at the bottom of the plug body, the ventilation groove extends upwards from the bottom of the plug body, and the upper end of the ventilation groove is not connected with the handheld part. The sealing state of the vent hole can be adjusted by rotating the plug body through the handheld part, when the plug body is rotated to the vent groove and is not communicated with the atmosphere, the vent plug is sealed with the vent hole, and when the plug body is rotated to the vent groove and is communicated with the atmosphere, the plug body is unsealed with the vent hole.
Preferably, the air outlet is provided with an air suction pipe, and the air suction pipe is provided with an air suction valve.
Preferably, the air suction pipe is a rubber hose. The rubber hose is soft, and is more convenient to connect with the negative pressure device through the air suction pipe, so that the inconvenient operation caused by overhigh air outlet position is avoided.
Preferably, the liquid measuring tube is provided with scales.
Preferably, the upper cover is provided with a liquid inlet, the lower part of the liquid storage tank is provided with a discharge outlet, and the discharge outlet is provided with a discharge valve.
Preferably, the bottom of the liquid storage tank is provided with a lifting table. The lifting table is more convenient for adjusting the height of the liquid storage tank according to the requirement.
Preferably, the liquid storage tank, the liquid suction funnel and the liquid measuring tube are all made of brown glass. This is because nitric acid is unstable and visible light is easily decomposed.
Compared with the prior art, the utility model has the beneficial effects that:
1. the liquid storage tank has a storage function, and the sampler can also be used as a storage container, so that nitric acid can be taken more conveniently;
2. The negative pressure state in the liquid suction funnel is formed through the air outlet, so that nitric acid is pressed into the accommodating cavity under the atmospheric pressure and then enters the liquid measuring tube, the sample accommodating container is arranged below the liquid outlet at the lower part of the liquid measuring tube, quantitative sampling can be realized by operating the plug valve, and the direct contact between an operator and the nitric acid is avoided in the sampling process, so that the liquid suction funnel is safer;
3. The utility model can realize quantitative and safe sampling for multiple times, has accurate sampling amount, simple structure and convenient use, and is more suitable for laboratory small-volume sampling.
Drawings
FIG. 1 is a schematic diagram of the nitric acid safety sampler of the present utility model;
Figure 2 is a schematic illustration of the structure of the vent plug of the present utility model;
In the figure: 1. a receiving chamber; 2. a pipette; 3. an air outlet; 4. a liquid guide port; 5. a catheter; 6. an evacuation tube; 7. a liquid measuring tube; 8. a plug valve; 9. a liquid storage tank; 10. an upper cover; 11. a return port; 12. a vent; 13. a vent plug; 14. a liquid suction valve; 15. an evacuation valve; 16. a liquid guide valve; 17. a plug body; 18. a hand-held part; 19. a ventilation groove; 20. an air suction pipe; 21. an air suction valve; 22. a liquid inlet; 23. a discharge port; 24. and a lifting platform.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings.
As shown in fig. 1, the nitric acid safety sampler of the utility model comprises a liquid suction funnel, wherein the liquid suction funnel comprises a containing cavity 1 at the upper part and a liquid suction pipe 2 which is arranged at the bottom of the containing cavity 1 and is communicated with the containing cavity 1, the top of the containing cavity 1 is provided with an air outlet 3, the lower part of the containing cavity 1 is provided with a liquid guide port 4, a liquid guide pipe 5 is arranged on the liquid guide port 4, an emptying port is arranged on the liquid guide pipe 5 and is downwards arranged, the emptying port is vertically downwards communicated with an emptying pipe 6, the liquid guide pipe 5 and the emptying pipe 6 form a three-way structure, the liquid guide pipe 5 is obliquely arranged, the higher end of the liquid guide pipe 5 is communicated with the liquid guide port 4, the lower end of the liquid guide pipe 5 is communicated with a liquid measuring pipe 7, the liquid measuring pipe 7 is vertically arranged, the lower part of the liquid guide pipe 7 is provided with a liquid outlet, and the liquid outlet is provided with a plug valve 8;
The liquid storage tank 9 is further arranged, the liquid storage tank 9 comprises a tank body and an upper cover 10, the upper cover 10 is detachably and hermetically arranged on the tank body, the upper cover 10 is provided with a backflow port 11 and a vent port 12, the backflow port 11 is communicated with the emptying pipe 6, and the vent port 12 is provided with a vent plug 13;
the liquid suction pipe 2 penetrates through the upper cover 10 and stretches into the tank body, and the outer wall of the liquid suction pipe 2 is in sliding sealing connection with the upper cover 10;
The pipette 2 is provided with a pipette valve 14, the emptying pipe 6 is provided with an emptying valve 15, and a liquid guide valve 16 is arranged between the liquid guide port 4 and the emptying port.
The vent plug 13 is threaded with the vent port 12.
As shown in fig. 2, the ventilation plug 13 includes a plug body 17 and a hand-held portion 18 disposed on the upper portion of the plug body 17, threads are disposed on the plug body 17, a ventilation groove 19 is disposed on the bottom of the plug body 17, the ventilation groove 19 extends upward from the bottom of the plug body 17, and the upper end of the ventilation groove 19 is not connected with the hand-held portion 18.
The air outlet 3 is provided with an air suction pipe 20, and the air suction pipe 20 is provided with an air suction valve 21.
The suction pipe 20 is a rubber hose.
The liquid measuring tube 7 is provided with scales.
The upper cover 10 is provided with a liquid inlet 22, the lower part of the liquid storage tank 9 is provided with a discharge outlet 23, and the discharge outlet 23 is provided with a discharge valve.
The bottom of the liquid storage tank 9 is provided with a lifting table 24.
The liquid storage tank 9, the liquid suction funnel and the liquid measuring tube 7 are all made of brown glass.
The working process is as follows: the liquid storage tank 9 stores nitric acid liquid, the liquid suction pipe 2 is kept below the liquid level through adjusting the height, the vent 12 is communicated with the atmosphere, other positions of the liquid storage tank 9 are closed, the emptying valve 15 and the liquid guide valve 16 are closed, the liquid suction valve 14 is opened, the negative pressure device is used for cleaning the ear ball, the liquid suction funnel is pumped through the air outlet 3, a negative pressure state is formed in the liquid suction funnel, under the action of the atmospheric pressure, the liquid enters the liquid suction funnel, when the liquid enters the accommodating cavity 1 to a required amount, the liquid suction valve 14 is closed, at the moment, the liquid stays in the accommodating cavity 1, the air outlet 3 is kept to be communicated with the atmosphere, the liquid guide valve 16 is opened, after the liquid enters the liquid measuring pipe 7 to the required amount through the liquid guide pipe 5, the liquid guide valve 16 is closed, the liquid suction valve 14 is opened, the residual liquid in the accommodating cavity 1 enters the liquid storage tank 9, the emptying valve 15 is opened firstly, the liquid guide valve 16 is opened, the residual liquid in the liquid guide pipe 5 flows back into the liquid storage tank 9 through the back flow port 11, and then quantitative liquid discharging is carried out through the plug valve 8 of the control gauge 7, and liquid taking is completed.
Claims (9)
1. The utility model provides a nitric acid safety sampler, a serial communication port, including the imbibition funnel, the imbibition funnel includes holding chamber (1) on upper portion and locates holding chamber (1) bottom and imbibition pipe (2) with holding chamber (1) intercommunication, holding chamber (1) top is equipped with gas outlet (3), holding chamber (1) lower part is equipped with drain (4), be equipped with catheter (5) on drain (4), be equipped with the evacuation mouth on catheter (5), the evacuation mouth sets up downwards, the vertical downward intercommunication evacuation pipe (6) of evacuation mouth, catheter (5) and evacuation pipe (6) form three-way structure, catheter (5) slope sets up, catheter (5) higher one end intercommunication drain (4), catheter (5) lower one end intercommunication drain (7), drain (7) vertical setting, the lower part of drain (7) is equipped with the liquid outlet, be equipped with plug valve (8) on the liquid outlet;
The device also comprises a liquid storage tank (9), wherein the liquid storage tank (9) comprises a tank body and an upper cover (10), the upper cover (10) is detachably and hermetically arranged on the tank body, the upper cover (10) is provided with a backflow port (11) and a vent port (12), the backflow port (11) is communicated with the emptying pipe (6), and the vent port (12) is provided with a vent plug (13);
The liquid suction pipe (2) penetrates through the upper cover (10) to extend into the tank body, and the outer wall of the liquid suction pipe (2) is in sliding sealing connection with the upper cover (10);
A liquid suction valve (14) is arranged on the liquid suction pipe (2), an evacuation valve (15) is arranged on the evacuation pipe (6), and a liquid guide valve (16) is arranged between the liquid guide port (4) and the evacuation port.
2. The nitric acid safety sampler according to claim 1, wherein the vent plug (13) is screwed with the vent (12).
3. The nitric acid safety sampler according to claim 2, wherein the vent plug (13) comprises a plug body (17) and a handheld part (18) arranged at the upper part of the plug body (17), threads are arranged on the plug body (17), a vent groove (19) is arranged at the bottom of the plug body (17), the vent groove (19) extends upwards from the bottom of the plug body (17), and the upper end of the vent groove (19) is not connected with the handheld part (18).
4. The nitric acid safety sampler according to claim 1, wherein the air outlet (3) is provided with an air suction pipe (20), and the air suction pipe (20) is provided with an air suction valve (21).
5. The nitric acid safety sampler according to claim 4, wherein the suction pipe (20) is a rubber hose.
6. The nitric acid safety sampler according to claim 1, characterized in that the measuring tube (7) is provided with graduations.
7. The nitric acid safety sampler according to claim 1, wherein the upper cover (10) is provided with a liquid inlet (22), the lower part of the liquid storage tank (9) is provided with a discharge outlet (23), and the discharge outlet (23) is provided with a discharge valve.
8. The nitric acid safety sampler according to claim 1, wherein the bottom of the liquid storage tank (9) is provided with a lifting table (24).
9. The nitric acid safety sampler according to claim 1, wherein the reservoir (9), the suction funnel and the measuring tube (7) are all made of brown glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420498862.0U CN220872161U (en) | 2024-03-15 | 2024-03-15 | Nitric acid safety sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420498862.0U CN220872161U (en) | 2024-03-15 | 2024-03-15 | Nitric acid safety sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872161U true CN220872161U (en) | 2024-04-30 |
Family
ID=90808912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420498862.0U Active CN220872161U (en) | 2024-03-15 | 2024-03-15 | Nitric acid safety sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872161U (en) |
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- 2024-03-15 CN CN202420498862.0U patent/CN220872161U/en active Active
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