CN213854607U - Liquid seal type diffusion vessel - Google Patents

Abstract

The utility model relates to the technical field of laboratory equipment, in particular to a liquid-sealed diffusion vessel; the problems that the dosage of the specially-made arabic gum glue is difficult to control when the conventional diffusion vessel is used for measuring the alkaline nitrogen, time and labor are wasted during preparation, the inner and outer room solutions are easy to mix due to slight vibration, the diffusion vessel is easy to break during unsealing, and the safety of experimenters is threatened are solved; the device comprises a top barrel and a bottom barrel, wherein the top barrel can be embedded in a liquid seal groove of the bottom barrel, the joint of the top barrel and the bottom barrel is sealed by sealing liquid, an inner barrel and a sodium hydroxide injection port are arranged on the top barrel, and a plurality of reaction ports are arranged on the inner barrel; through the sealed form of liquid seal, effectively avoided the use of arabic gum, and the later stage washs easily, also can effectively prevent the rupture of diffusion ware in the experimentation, meanwhile, the inner tube of suspension type has effectively avoided the diffusion ware to suffer when shaking absorbent and sodium hydroxide solution's mixture, security and fault-tolerant rate when having improved the diffusion ware and having shifted.

Description

Liquid seal type diffusion vessel

Technical Field

The utility model relates to a laboratory equipment technical field especially relates to a liquid seal formula diffusion ware.

Background

Alkaline hydrolysis nitrogen can exactly reflect the recent nitrogen supply level of soil, so that the alkaline hydrolysis nitrogen is one of the most conventional indexes measured in the fields of agricultural production and ecological research. Currently, the main method for determining alkaline-hydrolyzed nitrogen is the alkaline-hydrolyzed diffusion absorption method. In general, when the alkaline nitrogen is measured by an alkaline despreading method, a weighed soil sample needs to be uniformly paved in a conventional diffusion vessel outer chamber; subsequently, an absorbent (boric acid solution) was injected into the inner chamber; and finally, injecting a sodium hydroxide solution with a corresponding concentration into the outer chamber, sealing the solution by using the specially-made Arabic gum, putting the sealed diffusion dish into a constant temperature box for 24 hours, and taking out the diffusion dish for a titration experiment. The conventional diffusion dish has a plurality of problems in the process of measuring the alkaline nitrogen, for example, the glue amount is difficult to accurately control when the special Arabic gum is used for sealing, and the Arabic gum needs to be prepared half a month before the experiment; the sealing and unsealing processes cannot be strongly vibrated, otherwise, the solutions in the inner chamber and the outer chamber are mixed, so that great errors are generated in the experimental results; the sealed glass cover is manually pushed open by force in the unsealing process, so that the diffusion vessel is easily broken and the safety of testers is threatened; after the measurement is finished, the specially-made arabic gum is difficult to clean, so that the sealing effect of the diffusion dish is reduced when the experiment is carried out next time. Therefore, there is a need for a new diffusion dish that can effectively solve the above problems.

Disclosure of Invention

The utility model aims to solve the technical problem that, specially-made arabic gum glue quantity is difficult to hold and waste time and energy when preparing when surveying the alkaline hydrolysis nitrogen to current conventional diffusion ware, slightly vibrate and lead to inside and outside room solution easily to mix easily, easily lead to the diffusion ware to break and threaten the experimenter safety scheduling problem when unsealing, a liquid seal formula diffusion ware is provided, through the sealed form of liquid seal, the use of arabic gum has effectively been avoided, and the later stage washs easily, also can effectively prevent breaking of diffusion ware in the experimentation, meanwhile, the inner tube of suspension type has effectively avoided the diffusion ware to suffer when vibrating absorbent and sodium hydroxide solution's mixture, security and fault-tolerant rate when having improved the diffusion ware and having shifted.

In order to realize the purpose, the utility model discloses a technical scheme is:

a liquid-sealed diffusion vessel is characterized in that: including top 1 and end 2, top 1 can the nestification in the liquid seal groove 8 of end 2, and is sealed with top 1 and end 2 junction through sealing liquid, be provided with inner tube 3 and sodium hydroxide injection mouth 4 on the top 1, be provided with a plurality of reaction mouths 5 on the inner tube 3.

The inner cylinder 3 is detachably mounted on the boric acid injection port 31 of the top cylinder 1.

The boric acid injection port 31 and the sodium hydroxide injection port 4 are sealed with a first sealing plug 32 and a second sealing plug 41, which are detachable, respectively.

The length of the inner cylinder 3 is less than that of the top cylinder 1.

The liquid seal groove 8 of the top cylinder 2 consists of an outer seal wall 6, an inner seal wall 7 and a base 10, the outer seal wall 6 and the inner seal wall 7 are fixedly connected through the base 10, and an inner chamber 9 is formed by the inner part of the inner seal wall 7 and the base 10.

The inner diameter of the outer sealing wall 6 is larger than the outer diameter of the top cylinder 1; the outer diameter of the inner sealing wall 7 is smaller than the inner diameter of the top cylinder 1.

The sealing liquid is fluorocarbon inert solution FC-70 (perfluoro tripentylamine).

The reaction ports 5 are all positioned at one third of the upper part of the inner barrel 3.

The utility model has the advantages that: the liquid seal type diffusion vessel device adopts a liquid seal mode to replace the traditional glue seal, so that the experiment cost is saved, and the problems that the labor and the labor are wasted in preparing the Arabic gum and the dosage is difficult to control in the previous experiment are effectively avoided; the setting of inner tube has prevented effectively that indicator and alkali lye from mixing, has improved the accuracy nature of experiment, and simultaneously under the liquid seal condition, the diffusion ware easily washs and the switching is simple and easy, has reduced unnecessary error in the experimentation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view of the present invention.

Shown in the figure: the device comprises a top cylinder 1, a bottom cylinder 2, an inner cylinder 3, a boric acid injection port 31, a first sealing plug 32, a sodium hydroxide injection port 4, a second sealing plug 41, a reaction port 5, an outer sealing wall 6, an inner sealing wall 7, a liquid sealing groove 8, an inner chamber 9 and a base 10.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.

As shown in figure 1, the utility model comprises a top cylinder 1 and a bottom cylinder 2, wherein an inner cylinder 3 is detachably arranged on a boric acid injection port 31 at the central part of the top of the outer cylinder 1. The detachable installation mode is convenient for titrate and clean the instrument after the experiment. The boric acid injection port 31 is sealed by a first sealing plug 32. Boric acid required for the reaction is injected through the boric acid injection port 31. The inner cylinder 3 is provided with a plurality of reaction ports 6 so as to facilitate the generated gas to fully react with the boric acid solution. The right side of the inner cylinder is provided with a sodium hydroxide injection port 4, and sodium hydroxide solution required by reaction is injected, so that the traditional spreading vessel gluing and sealing process is omitted, and the operation is simpler and more convenient. And a second sealing plug 41 is also provided on the sodium hydroxide injection port 4.

The outer edge of the bottom cylinder 2 is provided with a liquid seal groove 8, and the middle part is provided with an inner chamber 9. The liquid seal tank 8 is composed of an outer seal wall 6 and an inner seal wall 7 which are fixedly connected through a base 10, and an inner chamber 9 is formed inside the inner seal wall 7 and the base 10. And adding a proper amount of liquid seal liquid which does not react with acid and alkali into the liquid seal tank 8, and only ensuring that the reaction is carried out under a sealed condition. The inner chamber 9 is used for placing a soil sample.

Because the length of the inner cylinder 3 is less than that of the top cylinder 1, after the top cylinder 1 is placed on the bottom cylinder 2, the inner cylinder 3 keeps a certain distance from the soil sample on the inner chamber 9, so that the soil sample is prevented from being polluted and the experimental result is prevented from being influenced. Meanwhile, the speed of adding the boric acid is not too high, so that the pollution caused by the splashing of the solution through the reaction port 5 is avoided.

The opening of the sodium hydroxide injection port 4 is smile only by inserting a needle tube, so that the influence on the sealing performance of the device is prevented; and the soil sample is aligned with the soil sample in the inner chamber, and the soil sample is slowly added when the solution is added, so that the solution is prevented from splashing.

The inner diameter of the outer sealing wall 6 is larger than the outer diameter of the top cylinder 1; the outer diameter of the inner sealing wall 7 is smaller than the inner diameter of the top cylinder 1, so that sealing is facilitated.

The utility model discloses when using, add the soil sample that obtains earlier and shake in the inner room 9, then embolia end section of thick bamboo 2 with top section of thick bamboo 1, add preferred sealing liquid after the cover is good. After the device is ensured to be sealed, firstly, boric acid and one drop of indicator are slowly added into the boric acid injection port 31, then, sodium hydroxide is slowly added into the sodium hydroxide injection port 4, the reaction starts, the gas generated by the reaction reacts with the boric acid through the reaction port 5 and changes color, and the experiment is finished.

In the utility model, the sealing condition is achieved through the liquid, thereby avoiding the use of Arabic gum in the traditional method, leading the experimental process to be simpler and more convenient, and simultaneously avoiding the phenomenon that partial gas escapes because of sealing after adding sodium hydroxide solution in the traditional method, thereby leading to the increase of accidental experimental errors; when the acacia gum is used for sealing, the diffusion vessel is easy to break after the experiment is finished and the safety of experimenters is threatened, the solution after the reaction is finished can be polluted due to excessive shaking, and the problem is well solved by adopting a liquid sealing mode.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

The techniques not described in detail in the present application are well known techniques.

Claims (8)

1. A liquid-sealed diffusion vessel is characterized in that: the device comprises a top barrel and a bottom barrel, wherein the top barrel can be embedded in a liquid seal groove of the bottom barrel, the joint of the top barrel and the bottom barrel is sealed through sealing liquid, an inner barrel and a sodium hydroxide injection opening are arranged on the top barrel, and a plurality of reaction openings are arranged on the inner barrel.

2. The liquid-sealed diffusion dish of claim 1, wherein: an inner cylinder is detachably arranged on the boric acid injection port on the top cylinder.

3. The liquid-sealed diffusion dish of claim 2, wherein: the boric acid injection port and the sodium hydroxide injection port are respectively sealed by a first sealing plug and a second sealing plug which are detachable.

4. The liquid-sealed diffusion dish of claim 2, wherein: the length of the inner cylinder is smaller than that of the top cylinder.

5. The liquid-sealed diffusion dish of claim 1, wherein: the liquid seal groove of the top cylinder consists of an outer seal wall, an inner seal wall and a base, the outer seal wall and the inner seal wall are fixedly connected through the base, and an inner chamber is formed inside the inner seal wall and the base.

6. The liquid-sealed diffusion dish of claim 5, wherein: the inner diameter of the outer sealing wall is larger than the outer diameter of the top cylinder; the outer diameter of the inner sealing wall is smaller than the inner diameter of the top cylinder.

7. The liquid-sealed diffusion dish of claim 1, wherein: the sealing liquid is fluorocarbon inert solution FC-70.

8. The liquid-sealed diffusion dish of claim 1, wherein: the reaction ports are all positioned at one third of the upper part of the inner cylinder.

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