Novel calorimeter

Abstract

The invention discloses a novel calorimeter, which comprises an outer cylinder (1), an inner cylinder (2), an arc-shaped edge (8), a conical edge (9), a washer (11) and a rubber cover assembly, wherein the inner cylinder (2) is made of metal and is a cylinder with the bottom end closed and the upper edge of the cylinder opening is outwardly made into the conical edge (9); the outer cylinder (1) is made of metal and is a cylinder with the bottom end closed and the upper edge of the cylinder opening is outwardly made into the arc-shaped edge (8); the hard rubber cover (6) is made of hard rubber, the upper part is a cylinder, and the lower part is a cone; soft rubber with good elasticity is used for being uniformly attached to the power part of the hard rubber cover (6) to form the soft rubber cover (7); the hard rubber cover (6) and the soft rubber cover (7) are bonded together by using an adhesive to form the rubber cover assembly; and the downward protruding part of the soft rubber cover (7) forms a conical body (3), and three convex rings (10) are made on the surface of the conical body (3). The novel calorimeter has the advantages that the cost is low, the use is convenient, and the sealing performance of the calorimeter can be ensured.

Description

technical field [0001] The invention relates to a calorimeter, in particular to a novel calorimeter with good sealing performance. Background technique [0002] A calorimeter is an insulated device used to measure changes in heat within a system. There are many types of calorimeters, and the types of calorimeters commonly used in physical experiments are as follows: figure 1 As shown, the inner cylinder 2 contacts and seals with the rubber cover 14 through the rubber ring 15, and the outer cylinder 1 directly contacts and seals with the rubber cover 14. The rubber cover 14 is formed with an agitator jack 4 and a thermometer jack 5. The existing problems are : [0003] 1. The rubber cover 14 is made of hard rubber. If it is slightly deformed or the surface is uneven, it will not be tightly sealed, so that the material in the inner cylinder and the outside have heat exchange, so that the heat insulation of the calorimeter system is not good. [0004] 2. The gap between the ...

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Problems solved by technology

[0003] 1. The rubber cover 14 is made of hard rubber. If it is slightly deformed or the surface is uneven, it will not be tightly closed, so that the material in the inner cylinder and the outside have heat exchange, and the heat insulation of the calorimeter system is not good.

[0004] 2. The gap between the agitator handle and the agitator socket 4 and between the thermometer and the thermometer socket 5 cannot be closed, so that the material in the inner cylinder 2 can directly exchange heat with the outside world

[0005] 3. Although the inner cylinder 2 is sealed by contacting the rubber ring 15 and the rubber cover 14, the inner cylinder 2 and the outer cylinder 1 need to be in close contact with the rubber cover 14 in the height direction at the same time to ensure the seal, which is not in the structural design. Reasonable structure, that is, in fact, due to problems such as manufacturing accuracy and thermal expansion, it cannot be realized, that is, it is difficult to ensure that the upper surface of the rubber ring 15 and the upper edge of the outer cylinder 2 are just in contact with the corresponding parts of the rubber cover 14 to achieve sealing. purpose, this is the fundamental problem that existing calorimeters are difficult to ensure sealing

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