CN216594639U - A thermochemical heat storage material performance testing device - Google Patents

Abstract

The utility model relates to a thermochemical heat storage material performance representation technical field, concretely relates to thermochemical heat storage material performance detection device, include: the heating furnace is provided with a plurality of stages of heating components at intervals along the axial direction in the inner cavity of the heating furnace, and the plurality of stages of heating components are all slidably arranged in the inner cavity of the heating furnace; the pressure-adjustable reactor penetrates through the heating furnace along the sliding direction of the heating assembly, the inner cavity of the reactor is arranged in a sealing manner, and a sample filler is arranged in the inner cavity of the reactor; the material balance is arranged on the reactor and is matched and connected with the sample filler, so that thermal performance measurement of the thermochemical heat storage material under variable temperature and pressure conditions is realized; by continuously changing the heating component corresponding to the sample filling device, the reaction conditions of the thermochemical heat storage material heat storage and release cycle are quickly switched, the reaction is not required to be reheated after the container is cooled during reaction overshoot, the waiting time during the reaction test of the thermochemical heat storage material heat storage and release cycle is greatly shortened, and the detection efficiency is improved.

Description

A thermochemical heat storage material performance testing device

technical field

The utility model relates to the technical field of thermochemical heat storage material performance characterization, in particular to a thermochemical heat storage material performance detection device.

Background technique

Depending on the different heat storage methods, heat storage materials can be divided into three categories: sensible heat, latent heat and thermochemical heat storage materials; the selection and application methods of materials are different, and each has its own characteristics: thermochemical heat storage materials rely on reversible adsorption/desorption. The attachment process or chemical reaction process realizes the storage and utilization of thermal energy, and the energy storage density is high, which has become one of the hot spots in the research of thermal storage materials. Thermochemical heat storage materials store and release energy by relying on the change of bond energy in the formation and dissociation of substances during chemical reactions. The form and volume of substances usually change greatly, and they often face the problem of poor cycle stability.

At present, the screening of thermochemical heat storage materials with low cost, high energy storage density, and stable cycle is limited by conventional thermal analysis equipment such as differential scanning calorimeter and thermogravimetric analyzer, which can only measure microgram-level trace materials. It is difficult to take into account the measurement of the performance of thermochemical heat storage materials by pressure; at the same time, the cycle life of characterizing the heat storage and heat release performance of thermochemical reactions depends on the variable flexibility of temperature and pressure of instruments and equipment, and conventional equipment switches heat There is a large amount of overshoot in the chemical reaction cycle conditions, resulting in a long waiting time for the heat storage and heat release cycle test.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcome the defect of long waiting time when the thermochemical heat storage material performance detection device in the prior art performs heat storage and heat release cycle detection, thereby providing a thermochemical heat storage material performance detection device.

In order to solve the above-mentioned technical problems, the utility model provides a thermochemical heat storage material performance detection device, comprising:

A heating furnace, the inner cavity of the heating furnace is provided with multi-stage heating components at intervals along the axial direction, and the multi-stage heating components are all slidably installed in the inner cavity of the heating furnace;

The reactor is arranged through the heating furnace along the sliding direction of the heating assembly, the inner cavity of the reactor is sealed and arranged, and a sample filler is arranged in the inner cavity of the reactor;

The material balance is installed on the reactor, and the material balance is connected with the sample filler.

Optionally, a pressure control device is installed on the reactor, and the reactor communicates with the inner cavity of the reactor to control the air pressure in the inner cavity of the reactor.

Optionally, the pressure control device includes a pressure supply assembly and a pressure stabilization assembly, and the pressure supply assembly and the pressure stabilization assembly are respectively installed at both ends of the reactor in the axial direction.

Optionally, the pressure supply component is an air compressor or a gas storage cylinder.

Optionally, the pressure-stabilizing component is a pressure-reducing pressure-stabilizing valve.

Optionally, the reactor is a hollow tube, the material balance is installed at the end of the hollow tube, and the sample filler and the material balance are flexibly connected.

Optionally, a liquid cooling device is installed on the reactor, a circulating pipeline is connected to the liquid cooling device, and the circulating pipeline is arranged along the side wall of the reactor.

Optionally, an air cooling device is also installed on the reactor, and the air outlet direction of the air cooling device is parallel to the axial direction of the reactor.

Optionally, a gas buffer component is also installed on the reactor, the gas buffer component communicates with the inner cavity of the reactor, and a control valve is arranged between the gas buffer component and the reactor.

Optionally, a gas pressure detection component is also installed on the reactor, and the gas pressure detection component communicates with the inner cavity of the reactor.

The technical scheme of the utility model has the following advantages:

1. The thermochemical heat storage material performance detection device provided by the present utility model includes: a heating furnace, and the inner cavity of the heating furnace is provided with multi-stage heating assemblies at intervals along the axial direction, and the multi-stage heating assemblies are all slidably installed in the inner cavity of the heating furnace. ; Reactor, which runs through the heating furnace along the sliding direction of the heating assembly, the inner cavity of the reactor is sealed, and a sample filler is arranged in the inner cavity of the reactor; the material balance is installed on the reactor, and the material balance cooperates with the sample filler connect.

The thermochemical heat storage material performance testing device is used to test the performance of the heat storage material. During the test, the reactants are filled into the sample filler, and the sample filler is connected with the material balance, and the sample filler is filled with the material balance. The quality of the sample in the vessel is monitored in real time. The heating temperature of the heating components in the heating furnace is controlled, so that different heating components can be raised to different temperatures. By aligning different heating components with the sample filler in the reactor, the sample filler can be raised to different temperatures. When the reading of the material balance remains unchanged at a certain temperature, the reaction of the thermochemical heat storage material reaches equilibrium. When sliding the heating element at another temperature, the heating element at another temperature is aligned with the sample filler to change the temperature of the sample to make it happen. Reverse reaction, when the material balance reading remains unchanged again, the reverse reaction of the thermochemical heat storage material reaches equilibrium. By constantly changing the heating components corresponding to the sample filler, the thermochemical heat storage material can be used for the thermal storage and heat release cycle reaction. In the reaction overshoot, there is no need to wait for the container to cool and then reheat, which greatly shortens the time required for the thermochemical heat storage. The waiting time of the material heat storage and heat release cycle reaction test improves the detection efficiency.

2. In the thermochemical heat storage material performance detection device provided by the utility model, a pressure control device is installed on the reactor, and the reactor is communicated with the inner cavity of the reactor to control the air pressure in the inner cavity of the reactor. The thermochemical heat storage material can be reacted under suitable gas pressure. The thermochemical heat storage material can measure thermal performance under variable temperature and pressure conditions; at the same time, during the sample reaction process, the increase of air pressure caused by heating in the reactor or the presence of gaseous products can be avoided to inhibit the reaction.

3. In the thermochemical heat storage material performance testing device provided by the utility model, a liquid cooling device is installed on the reactor, and a circulating pipeline is connected to the liquid cooling device, and the circulating pipeline is arranged along the side wall of the reactor. The temperature of the reactor is controlled by the liquid cooling equipment. When the heating component is switched from high temperature to low temperature, the liquid cooling equipment is used to drive the cooling medium to flow in the circulation pipeline, so that the reactor can be cooled rapidly to reduce the waiting time during the test. .

4. In the thermochemical heat storage material performance detection device provided by the utility model, a gas buffer component is also installed on the reactor, the gas buffer component is communicated with the inner cavity of the reactor, and a control valve is arranged between the gas buffer component and the reactor . When testing the performance of thermochemical heat storage materials with gaseous reactants, firstly, the gaseous reactants are fully mixed in the gas buffer component and then passed into the reactor, and the reaction is carried out at the corresponding temperature. Avoiding incomplete reaction due to uneven mixing of gas reactants can improve the accuracy of device testing.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings required in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a thermochemical heat storage material performance detection device provided in an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a sample filler provided in an embodiment of the present invention.

Description of reference numerals: 1. Pressure supply assembly; 2. Gas buffer assembly; 3. Air pressure detection assembly; 4. Liquid cooling equipment; 5. Heating furnace; 6. Air cooling equipment; 7. Voltage stabilization assembly; 8. Material balance ; 9. Sample filler; 10. Hollow tube; 11. Heating assembly.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

As shown in FIG. 1 and FIG. 2 , a device for detecting the performance of a thermochemical heat storage material provided in this embodiment includes a heating furnace 5 , a reactor and a material balance 8 .

The axial direction of the heating furnace 5 is arranged in the vertical direction, and the inner cavity of the heating furnace 5 is provided with three-stage heating assemblies 11 at intervals along the axial direction. The three-stage heating assemblies 11 are respectively slidably installed in three different chutes, and the chutes are arranged in the vertical direction.

The hollow tube 10 serving as a reactor is disposed through the heating furnace 5 along the sliding direction of the heating assembly 11 , and the axis of the heating furnace 5 and the hollow tube 10 are coincident. The inner cavity of the hollow tube 10 is sealed and arranged, and a sample filler 9 is arranged in the inner cavity of the hollow tube 10 . The material balance 8 is fixedly installed on the top of the hollow tube 10, and the material balance 8 and the sample filler 9 are flexibly connected through a hoisting wire.

A pressure control device is installed on the reactor, and the reactor is communicated with the inner cavity of the reactor to control the air pressure in the inner cavity of the reactor. The pressure control device includes a pressure supply assembly 1 and a pressure stabilization assembly 7, and the pressure supply assembly 1 and the pressure stabilization assembly 7 are respectively installed at both ends of the reactor in the axial direction. The pressure supply assembly 1 can be an air compressor or a gas storage cylinder. The gas cylinder is filled with high-pressure nitrogen or high-pressure inert gas. When the hollow tube 10 is filled with gas through the pressure supply assembly 1, the air pressure in the hollow tube 10 is raised to a pressure suitable for the reaction. In this embodiment, the pressure-stabilizing component 7 is a pressure-reducing pressure-stabilizing valve. When the air pressure in the hollow pipe 10 is higher than the detection pressure of the pressure-stabilizing component 7 and is greater than the preset pressure, the exhaust port on the pressure-stabilizing component 7 is opened to reduce the air pressure in the hollow tube 10 . The pipe 10 is exhausted until the detected pressure is equal to the preset pressure.

A liquid cooling device 4 is installed on the reactor, and a circulating pipeline is connected to the liquid cooling device 4, and the circulating pipeline is arranged along the side wall of the reactor. The temperature of the reactor is controlled by the liquid cooling device 4. When the heating assembly 11 is switched from high temperature to low temperature, the liquid cooling device 4 is used to drive the cooling medium to flow in the circulation pipeline, so that the temperature of the reactor is rapidly reduced, so as to reduce the time during the test. waiting time.

An air-cooling device 6 is also set on the reactor, and the air outlet direction of the air-cooling device 6 is parallel to the axial direction of the reactor. After the reaction is completed, the reactor is rapidly cooled to room temperature by the air cooling device 6, and then the sample filler 9 is taken out and the samples filled therein are processed to shorten the waiting time after the completion of the experiment.

The reactor is also installed with a sealed cavity as a gas buffer component 2, the gas buffer component 2 communicates with the inner cavity of the reactor, and a control valve is arranged between the gas buffer component 2 and the reactor. When performing performance test on the thermochemical heat storage material with gas reactant, firstly, the gaseous reactant is fully mixed in the gas buffer assembly 2 and then passed into the reactor, and the control valve controls the gas to enter the hollow tube 10 The flow rate and flow rate in the reaction are carried out at the corresponding temperature. Avoiding incomplete reaction due to uneven mixing of gas reactants can improve the accuracy of device testing. A gas pressure gauge is also installed on the reactor as a gas pressure detection component 3. The gas pressure detection component 3 communicates with the inner cavity of the reactor and is used for real-time monitoring of the gas pressure signal in the hollow tube 10 during the reaction.

The thermochemical heat storage material performance detection device provided in this embodiment is further integrated with an acquisition module, and the acquisition module is electrically connected to the air pressure detection component 3 and the material balance 8 to detect the pressure signal detected by the air pressure detection component 3 and the material balance 8 The detected quality signals are collected in real time and stored.

The thermochemical heat storage material performance detection device is used to test the performance of the heat storage material. During the test, the reactants are filled into the sample filler 9, and the sample filler 9 is connected with the material balance 8, and the material balance is used. 8. The quality of the sample in the sample filler 9 is monitored in real time. Control the heating temperature of the heating components 11 in the heating furnace 5 so that different heating components 11 rise to different temperatures. By aligning the different heating components 11 with the sample filler 9 in the reactor, the sample filler 9 can be adjusted rise to different temperatures. When the reading of the material balance 8 does not change at a certain temperature, the reaction of the thermochemical heat storage material reaches equilibrium, and the heating element 11 at another temperature is aligned with the sample filler 9 when the heating element 11 is slid to change the sample. The temperature causes the reverse reaction to occur, and when the reading of the material balance 8 remains unchanged again, the reverse reaction of the thermochemical heat storage material reaches equilibrium. By constantly changing the heating component 11 corresponding to the sample filler 9, the thermochemical heat storage material can be subjected to a cyclic reaction of heat storage and heat release. During the reaction overshoot, there is no need to wait for the container to cool and then reheat, which greatly shortens the time required for thermochemical storage. The waiting time of the heat storage material in the heat storage and heat release cycle reaction test improves the detection efficiency.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. A thermochemical heat storage material performance detection device, comprising:

the heating furnace (5), wherein multiple stages of heating components (11) are axially arranged in an inner cavity of the heating furnace (5) at intervals, and the multiple stages of heating components (11) are all slidably arranged in the inner cavity of the heating furnace (5);

the reactor penetrates through the heating furnace (5) along the sliding direction of the heating assembly (11), the inner cavity of the reactor is arranged in a sealing manner, and a sample filler (9) is arranged in the inner cavity of the reactor;

and the material balance (8) is arranged on the reactor, and the material balance (8) is connected with the sample filling device (9) in a matching way.

2. The thermochemical heat storage material property detection apparatus of claim 1, wherein a pressure control device is installed on the reactor, and the reactor is in communication with the reactor inner chamber to control the gas pressure in the reactor inner chamber.

3. The thermochemical heat storage material performance detection apparatus according to claim 2, wherein the pressure control device comprises a pressure supply assembly (1) and a pressure stabilizing assembly (7), and the pressure supply assembly (1) and the pressure stabilizing assembly (7) are respectively installed at two ends of the reactor in the axial direction.

4. The thermochemical heat storage material performance detecting device according to claim 3, wherein the pressure supply module (1) is an air compressor or a gas storage cylinder.

5. A thermochemical heat storage material property detection apparatus according to claim 3 or 4, characterized in that the pressure stabilizing means (7) is a pressure reducing and stabilizing valve.

6. The thermochemical heat storage material property detection apparatus according to any of claims 1 to 4, wherein the reactor is a hollow tube (10), the material balance (8) is installed at the end of the hollow tube (10), and the sample filler (9) and the material balance (8) are flexibly connected.

7. The thermochemical heat storage material performance detecting apparatus according to any of claims 1 to 4, wherein the reactor is provided with a liquid cooling device (4), and the liquid cooling device (4) is connected with a circulating pipeline which is arranged along the side wall of the reactor.

8. The thermochemical heat storage material performance testing apparatus according to claim 5, wherein an air cooling device (6) is further installed on the reactor, and an air outlet direction of the air cooling device (6) is parallel to an axial direction of the reactor.

9. The thermochemical heat storage material performance detecting device according to any of claims 1 to 4, wherein a gas buffer assembly (2) is further installed on the reactor, the gas buffer assembly (2) is communicated with the inner cavity of the reactor, and a control valve is arranged between the gas buffer assembly (2) and the reactor.

10. The thermochemical heat storage material performance detecting device according to any of claims 1 to 4, wherein a gas pressure detecting component (3) is further mounted on the reactor, and the gas pressure detecting component (3) is communicated with the inner cavity of the reactor.

Images