CN207823054U - A kind of test tube for preventing high temperature boiling from boiling explosion - Google Patents

Abstract

The utility model discloses a kind of for preventing high temperature boiling from boiling the test tube of explosion, including test tube wall, test tube cap, air hole, coating, the test tube cap is connected with test tube wall, and test tube cap interposition is equipped with air hole, and the coating is pasted onto at the top of test tube cap and air hole is completely covered.The utility model is pasted on by glue at the top of the test tube cap with air hole using permeable watertight material, avoid in experimentation to test tube carry out boiling boil when test tube in generate bulk gas be expanded into when test tube cap explosion flick, and then cause to wait for that reaction liquid flows out in test tube, test tube external water flows into test tube, experiment material is caused to lose, experimental data error.

Description

A kind of test tube for preventing high temperature boiling from boiling explosion

Technical field

The utility model discloses a kind of test tube, especially a kind of test tube for preventing high temperature boiling from boiling explosion.

Background technology

At present during many experiments, in order to which the reaction rate more particularly to some reagents of accelerating experiment reagent are necessary It could react under the high temperature conditions.Can often occur showing what the test tube equipped with reagent was put into water-bath that boiling boils in experimentation As.But test tube currently on the market is totally enclosed type test tube with a lid, during experiment high temperature boiling is boiled, tries internal liquid Body leads to gas expansion in test tube since high temperature boiling is boiled, and reaches showing of just will appear that the sub- explosion of test tube cap flicks after certain pressure As.And then cause to wait for that reaction liquid flows out in test tube, test tube external water flows into test tube, and experiment material is caused to lose, and tests number According to error.

The material of the upper permeable watertight of production at present is relatively more, such as：Ox-hide shoes are waterproof, but can breathe freely；Mesh number is very Big sieve（Namely density is very big）Compare difficult permeable, but can breathe freely；The big non-woven fabrics of density；Common paper（Report The paper of paper, books）；The rotary hose etc. of fire-fighting.Fabric manufacturer of U.S. Ge Er（GORE）One kind of company's production is ventilative Product G ORE-TEX, the product use expanded PTFE (ePTFE) material, and the microporous properties of this material allow gas Body passes through, and to balance pressure, but understands the larger substances such as barrier liquid, dust and dirt again simultaneously, to prevent leakage or dirt Object enters.

The principle of waterproof ventilative material：In the state of steam, particle water is very tiny, according to the principle of capillary moving, Capillary can smoothly be penetrated into the other side, to which vapour phenomenon occur.After moisture condensation becomes droplet, particle becomes larger, Due to the effect of droplet surface tension（Between hydrone mutual " pull and contend with "）, hydrone cannot smoothly be detached from droplet infiltration To the other side, that is, the infiltration of water is prevented to occur, steam film is made to have the function of waterproof.

Utility model content

In view of the above problems, the utility model discloses a kind of test tube for being used to prevent high temperature boiling from boiling explosion, it is described Test tube cap is connected with test tube wall, and test tube cap interposition is equipped with air hole, can breathe freely but fluid-tight coating passes through glue It is pasted at the top of test tube cap and air hole is completely covered.When being boiled during the experiment to test tube progress high temperature boiling, is produced in test tube Raw hot gas can be distributed by coating, but avoid the loss of reagent simultaneously, caused by being boiled so as to avoid high temperature boiling Test tube explosion increases the operability of experiment, keeps experimental data more acurrate.

The utility model discloses a kind of for preventing high temperature boiling from boiling the test tube of explosion, including test tube wall, test tube cap, Coating, the test tube cap are connected with test tube wall, and test tube cap interposition is equipped with air hole, and the coating is pasted on by glue At the top of test tube cap and air hole is completely covered.

The utility model discloses a kind of for preventing high temperature boiling from boiling the test tube of explosion, and the test tube cap top has not Similar shape air hole.Stomata can be different shape, and gas discharge when being boiled convenient for high temperature boiling, stomata shape is preferably round, is convenient for Coating covers.

The utility model discloses a kind of for preventing high temperature boiling from boiling the test tube of explosion, and the coating is a kind of saturating Gas impermeable material, selects GORE-TEX coating materials as coating, which has the characteristic of permeable watertight.

Advantageous effect：The utility model is pasted on the test tube cap with air hole using permeable watertight material by glue Top avoids and carries out generating test tube cap demolition bomb when bulk gas is expanded into when boiling is boiled in test tube to test tube in experimentation It opens, and then avoids waiting for that reaction liquid flows out in test tube, test tube external water flows into test tube.To avoid that experiment material is caused to damage It loses, experimental data error.

Description of the drawings

Fig. 1 is a kind of test tube overall structure signal for preventing high temperature boiling from boiling explosion disclosed by the utility model Figure.

Specific implementation mode

With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties Formula is merely to illustrate the utility model rather than limitation the scope of the utility model, after having read the utility model, this Field technology personnel fall within the application model as defined in the appended claims to the modification of the various equivalent forms of utility model It encloses.

As shown in Figure 1, the utility model discloses a kind of for preventing high temperature boiling from boiling the test tube of explosion, including test tube Wall 1, test tube cap 2, air hole 3, coating 4, the test tube cap 2 are connected with test tube wall 1, and test tube cap interposition is equipped with air hole 3, The coating 4 is permeable watertight material, is pasted on 2 top of test tube cap by glue and air hole 3 is completely covered.

As a preferred embodiment, there is round air hole 3 on 2 top of the test tube cap, it is convenient for uniform fold.

As a preferred embodiment, the coating 4 be a kind of permeable watertight material, select GORE-TEX coating materials as Coating, the material have the characteristic of permeable watertight, are pasted on 2 top of test tube cap by glue and air hole 3 is completely covered, In this way during test tube boiling is boiled, pressure that can be in active balance test tube with the outer air of test tube, while fluid preservation is complete in test tube It is good, it can effectively avoid the examination excessive generation explosion of intraductal pressure.

The utility model makes high temperature boil expanding gas in the test tube boiled and passes through using permeable watertight material as coating Stomata excludes, and prevents the test tube cap explosion caused by gas expansion, specifically, coating is pasted on band by glue At the top of the test tube cap for having air hole, so that high temperature boiling is boiled invisible spectro expanding gas and exclude, avoid in experimentation to examination Pipe generate bulk gas in test tube when boiling is boiled and expand that test tube cap explosion is caused to flick, and then avoids waiting for reaction liquid in test tube Outflow, test tube external water flow into test tube.To avoid that experiment material is caused to lose, experimental data error.

Claims (2)

1. a kind of for preventing high temperature boiling from boiling the test tube of explosion, it is characterised in that：Including test tube wall, test tube cap, air hole, Coating, the test tube cap are connected with test tube wall, and test tube cap interposition is equipped with air hole, and the coating is pasted onto test tube caping Simultaneously air hole is completely covered in portion, and the test tube cap top has the air hole of quantity >=1, ventilative hole area to account for the 1/ of test tube cap area 2 hereinafter, and air hole shape be circle, the coating be a kind of permeable watertight material.

2. according to claim 1 a kind of for preventing high temperature boiling from boiling the test tube of explosion, it is characterised in that：It is described Gas impermeable material selects GORE-TEX coating materials as coating.