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Measuring method of measuring device for volume change rate of inorganic phase change material under different temperature conditions

A technology of inorganic phase change material and volume change rate, which is applied in the direction of volume measuring instrument/method, measuring device, liquid/fluid solid measurement, etc. It can solve the problem that the volume change rate of inorganic phase change material cannot be accurately measured. Change rate and other issues, to achieve high accuracy of measurement results, avoid heating and volatilization, and easy operation

Inactive Publication Date: 2016-01-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the current device for measuring the volume change rate of inorganic phase change materials cannot accurately measure the volume change rate of inorganic phase change materials under different temperature conditions. Rate measuring device and method thereof

Method used

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  • Measuring method of measuring device for volume change rate of inorganic phase change material under different temperature conditions

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specific Embodiment approach 1

[0025] Specific implementation mode one: combine figure 1 Describe this embodiment, the measuring device for volume change rate of inorganic phase change materials under different temperature conditions described in this embodiment, it includes electronic scale 1, hanger 3, connecting pipe 4, container 5, sealing plug 6, precision scale glass tube 7. Thermometer 8, water bath 9, pump 10 and temperature control heater 11;

[0026] The top of the hanger 3 is fixed with the weighing end of the electronic scale, and the container 5 is fixedly connected with the hanger 3,

[0027] A sealing plug 6 is arranged at the port at the top of the container 5 to seal the inside of the container 5, a thermometer 8 is inserted into the container 5 through the sealing plug 6, and one end of the precision scale glass tube 7 is inserted into the sealing plug 6 to communicate with the inside of the container 5, and the precision scale glass tube The other end of 7 communicates with one end of th...

specific Embodiment approach 2

[0030] Specific embodiment 2: This embodiment is a further limitation of the measuring device for the volume change rate of inorganic phase change materials under different temperature conditions described in specific embodiment 1. It also includes a platform 2, and the lower end of the electronic scale 1 is fixedly connected to the platform 2. .

specific Embodiment approach 3

[0031] Specific embodiment three: This embodiment is based on the measuring method of the measuring device for volume change rate of inorganic phase change materials under different temperature conditions described in specific embodiment one, which includes the following steps:

[0032] Step 1: Calibrate the volume capacity of the precise scale glass tube 7 and the connected container 5;

[0033] Step 2: Open the sealing plug 6, put the inorganic phase change material 13 in the container 5, the volume of the inorganic phase change material 13 is between 1 / 2 and 2 / 3 of the volume of the container 5, and close the sealing plug 6 ;

[0034] Remove the connection tube 4 connected to the precision scale glass tube 7, and inject V into the container 5 through the precision scale glass tube 7 0 ml of kerosene 14, so that the meniscus of kerosene 14 is in the middle of the precision scale glass tube 7, and the connecting tube 4 is reconnected to the precision scale glass tube 7; at t...

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Abstract

The invention discloses a measuring device for a volume change rate of an inorganic phase change material under different temperature conditions and a method of the device, belonging to the field of performance parameter measurement of the inorganic phase change material and aiming at solving the problem that the volume change rate of the inorganic phase change material under different temperature conditions cannot be accurately measured at present. The inorganic phase change material is held in a container; V0 ml of kerosene is injected into the container through a precisely graduated glass pipe; the precisely graduated glass pipe is communicated with an extraction pump through a connecting pipe; an isolating air switch of the extraction pump is turned on; the graduation V1 ml of a concave liquid surface of the kerosene of the glass pipe is read; a temperature controlled heater is adjusted to a required measured temperature to indirectly heat and fully change the inorganic phase change material; after the temperature in the container is stabilized at the required measured temperature, the reading V2 ml of the concave liquid surface of the kerosene is read; after a proper amount of kerosene is extracted by the extraction pump, the switch is turned on; after the concave liquid surface of the kerosene is stabilized again, the reading V3 ml is read, the change reading for weight of an electronic scale is read, and the change rate is solved in combination with a formula. The device and the method are used for measuring the volume change rate of the inorganic phase change material.

Description

technical field [0001] The invention belongs to the technical field of measuring performance parameters of inorganic phase change materials. Background technique [0002] Inorganic phase-change materials have a fixed phase-change temperature point. Under the condition of phase-change temperature, it will change from solid to solid-liquid mixed state, or completely liquid state. In this way, its volume will inevitably change. A large number of experiments have shown that its The volume will expand. [0003] Inorganic phase change materials have the properties of storing and releasing energy, and have been gradually applied to the field of energy conservation and environmental protection. Solid inorganic phase change materials need to be contained in a sealed container with a certain mechanical strength. In order to maximize the use of the internal space of the container, a reasonable volume of inorganic phase change materials needs to be loaded. Because the volume of the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F22/00
Inventor 杨英姿刘雨时高小建邓宏卫许景茗付译磊
Owner HARBIN INST OF TECH