A piston type constant temperature calorimeter

Abstract

The invention discloses a piston-type constant temperature calorimeter, which relates to the field of analytical instruments for the calorific value of combustible substances, and comprises an inner cylinder (1), an oxygen bomb (2), an outer cylinder (3), a machine cover (4) and a machine The shell (5), the middle cylinder (6) is arranged between the inner cylinder (1) and the outer cylinder (3), the space between the inner cylinder (1) and the middle cylinder (6) is hollow, and the casing (5) is provided with a positioning device (7), a piston (8) is arranged under the machine cover (4), the upper and lower surfaces of the piston (8) are arc-shaped convex surfaces, and the position where the piston (8) contacts the inner cylinder (1) is provided with a sealing ring (9) , the bottom of the piston (8) is provided with an ignition electrode (10), the inner cylinder (1) is provided with a temperature measuring probe (11) and an inner cylinder stirring mechanism (12), and the outer cylinder (3) is provided with an outer cylinder stirring mechanism ( 13). The piston-type constant-temperature calorimeter of the invention can perform accurate and fast water quantification during measurement, and improves the measuring accuracy and measuring efficiency of the calorimeter.

Description

technical field

[0001] The invention relates to the field of analytical instruments for the calorific value of combustible substances, in particular to a piston-type constant temperature calorimeter. Background technique

[0002] The calorific value of combustion is one of the most important indicators to evaluate the quality of coal, which is directly related to the price of coal transactions. The instrument used to measure the calorific value of coal is a calorimeter, also known as a calorimeter, calorimeter or oxygen bomb. Calorimeters can be divided into constant temperature type, adiabatic type and double dry type according to the principle. Among them, the constant temperature type has a simple structure and is easy to maintain, and is currently the most widely used. The constant temperature calorimeter is generally composed of an outer cylinder, an inner cylinder, an oxygen bomb, a machine cover, a casing, a stirring system, an ignition device, a control system, etc...

Examples

Embodiment 1

[0020] Such as figure 1 As shown, a piston-type constant temperature calorimeter includes an inner cylinder 1, an oxygen bomb 2, an outer cylinder 3, a machine cover 4 and a casing 5, the inner cylinder 1 is placed in the outer cylinder 3, and the inner cylinder 1 is placed in the outer cylinder 3. A middle cylinder 6 is provided between the cylinder 1 and the outer cylinder 3, the inner cylinder 1 and the middle cylinder 6 are sealed and hollowly connected as a whole, and the inner cylinder 1 and the middle cylinder 6 are completely submerged in the outer cylinder 3 in the water. Described machine cover 4 is installed on the casing 5 by hinge, is provided with piston 8 below machine cover 4, and the caliber of described piston 8 is slightly smaller than inner diameter of inner cylinder 1, and shape is consistent with inner cylinder 1 section shape, and the upper and lower surfaces of piston 8 Both are arc-shaped convex surfaces, which are convenient for the piston 8 to enter...

Embodiment 2

[0023] Such as figure 2 As shown, a piston-type constant temperature calorimeter includes an inner cylinder 1, an oxygen bomb 2, an outer cylinder 3, a machine cover 4 and a casing 5, the inner cylinder 1 is placed in the outer cylinder 3, and the inner cylinder 1 is placed in the outer cylinder 3. A middle cylinder 6 is provided between the cylinder 1 and the outer cylinder 3, and the space between the inner cylinder 1 and the middle cylinder 6 is hollow. The machine cover 4 is installed on the casing 5 through a lifting mechanism, and the bottom of the machine cover 4 A piston 8 is provided, and the diameter of the piston 8 is slightly smaller than the inner diameter of the inner cylinder 1, and its shape is consistent with the section shape of the inner cylinder 1. 8. The sticky water on the upper and lower surfaces of the inner cylinder 1 can be quickly dripped clean. The bottom of the piston 8 is provided with an ignition electrode 10 through which the sample in the oxy...

technical field

[0001] The invention relates to the field of analytical instruments for the calorific value of combustible substances, in particular to a piston-type constant temperature calorimeter. Background technique

[0002] The calorific value of combustion is one of the most important indicators to evaluate the quality of coal, which is directly related to the price of coal transactions. The instrument used to measure the calorific value of coal is a calorimeter, also known as a calorimeter, calorimeter or oxygen bomb. Calorimeters can be divided into constant temperature type, adiabatic type and double dry type according to the principle. Among them, the constant temperature type has a simple structure and is easy to maintain, and is currently the most widely used. The constant temperature calorimeter is generally composed of an outer cylinder, an inner cylinder, an oxygen bomb, a machine cover, a casing, a stirring system, an ignition device, a control system, etc...

Examples

Embodiment 1

[0020] Such as figure 1 As shown, a piston-type constant temperature calorimeter includes an inner cylinder 1, an oxygen bomb 2, an outer cylinder 3, a machine cover 4 and a casing 5, the inner cylinder 1 is placed in the outer cylinder 3, and the inner cylinder 1 is placed in the outer cylinder 3. A middle cylinder 6 is provided between the cylinder 1 and the outer cylinder 3, the inner cylinder 1 and the middle cylinder 6 are sealed and hollowly connected as a whole, and the inner cylinder 1 and the middle cylinder 6 are completely submerged in the outer cylinder 3 in the water. Described machine cover 4 is installed on the casing 5 by hinge, is provided with piston 8 below machine cover 4, and the caliber of described piston 8 is slightly smaller than inner diameter of inner cylinder 1, and shape is consistent with inner cylinder 1 section shape, and the upper and lower surfaces of piston 8 Both are arc-shaped convex surfaces, which are convenient for the piston 8 to enter...

Embodiment 2

[0023] Such as figure 2 As shown, a piston-type constant temperature calorimeter includes an inner cylinder 1, an oxygen bomb 2, an outer cylinder 3, a machine cover 4 and a casing 5, the inner cylinder 1 is placed in the outer cylinder 3, and the inner cylinder 1 is placed in the outer cylinder 3. A middle cylinder 6 is provided between the cylinder 1 and the outer cylinder 3, and the space between the inner cylinder 1 and the middle cylinder 6 is hollow. The machine cover 4 is installed on the casing 5 through a lifting mechanism, and the bottom of the machine cover 4 A piston 8 is provided, and the diameter of the piston 8 is slightly smaller than the inner diameter of the inner cylinder 1, and its shape is consistent with the section shape of the inner cylinder 1. 8. The sticky water on the upper and lower surfaces of the inner cylinder 1 can be quickly dripped clean. The bottom of the piston 8 is provided with an ignition electrode 10 through which the sample in the oxy...

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