WO2022228225A1 - Multifunctional thermal experiment platform - Google Patents

Abstract

A multifunctional thermal experiment platform, comprising an outdoor cooling module (1), a pipeline regulation and control module (3), a parameter measurement module (4), a voltage-stabilized power supply module (5) and a water tank high-pressure module (2), wherein an external experiment device (40) is connected to the pipeline regulation and control module (3) for cooling, and the experiment device (40) is connected to the voltage-stabilized power supply module (5) for heating. The outdoor cooling module (1) cooperates with a heating rod (51) in the water tank high-pressure module (2) by means of a plate heat exchanger (13) to maintain the temperature of a working medium to be stable, and the water tank high-pressure module (2) is in pipeline communication with the parameter measurement module (4) by means of the pipeline regulation and control module (3) to convey a working medium liquid with stable temperature to the parameter measurement module (4) for subsequent measurement. The multifunctional thermal experiment platform has the characteristics of a good stability, a high measurement precision, a wide adjustable range, being convenient to maintain and a high applicability.

Description

A multifunctional thermal experiment platform

This application claims the priority of the Chinese patent application with the application number of 202110445977.4 and the invention titled "A Multifunctional Thermal Experiment Platform", which was submitted to the China Patent Office on April 25, 2021, the entire contents of which are incorporated herein by reference. middle.

technical field

The invention relates to the technical field of thermal engineering, in particular to a multifunctional thermal engineering experimental platform that can meet the testing environment of different experimental equipment.

Background technique

At present, it is used for thermal experiment platform with single function, mainly for heat transfer characteristic measurement and flow resistance measurement. The current measurement platform has a limited test range, and it is difficult to be compatible with various functional requirements such as high flow and low flow, high heat load and low heat load. When high flow is used in the design, the test platform cannot provide Stable measurement environment and high-quality test accuracy; neutron generation targets based on high-current accelerators have high heat flux density and high power, so it is necessary to carry out high-precision measurement experiments at low power and high heat flux density, as well as high-power Large and small flow verification experiments; therefore, it is necessary to design a multi-functional thermal experimental platform to meet the test environment of different experimental equipment, different pressures and different working fluids.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a multifunctional thermal experiment platform, which has the characteristics of high stability, wide adjustable range, easy maintenance and strong applicability.

The present invention can be realized by the following technical solutions: a multifunctional thermal experiment platform, including an outdoor cooling module, a pipeline regulation module, a parameter measurement module, a regulated power supply module and a water tank high-voltage module, wherein the external experimental equipment and The pipeline control module is connected to realize cooling, and the experimental equipment is connected to the regulated power supply module to realize heating; the outdoor cooling module realizes the stable temperature of the working fluid in the high-pressure module of the water tank through the joint action of the plate heat exchanger and the high-pressure heating rod in the water tank, and the high-pressure water tank The module communicates with the parameter measurement module through the pipeline control module, and transports the temperature-stabilized working fluid to the parameter measurement module for subsequent measurement.

The outdoor cooling module includes an outdoor air-cooled condenser, a refrigeration compressor, and a plate heat exchanger built in a water tank. The air-cooled condenser is connected to the plate heat exchanger through the refrigeration compressor. The heat exchanger and the air-cooled condenser form a pipeline loop through a drying filter and an expansion valve.

The pipeline control module includes a variable frequency pump, an electric valve, a temperature inverter, a particle replenishing port, and a pressure inverter, wherein the high-pressure water tank module is connected to the experimental equipment pipeline of the parameter measurement module through the pipeline control module.

The experimental equipment at the parameter measurement module forms a pipeline loop with the water tank through a temperature transformer, a pressure transformer, a flow transformer and a water tank.

The regulated power supply module further includes a high-power regulated power supply box, which is electrically connected with the parameter measurement module to provide regulated power for the experimental equipment, and at the same time, the high-power regulated power supply box realizes the debugging of the heating power of the experimental equipment through an external transformer.

The water tank in the high-pressure module of the water tank is communicated with the air source through the water tank pressure gauge and the pressurizing valve, and the water tank has a built-in plate heat exchanger, a heating rod, a temperature changer and a water level changer.

The working fluid is water, glycerol or nanofluid.

The water tank is provided with a pressurizing valve for adjusting the pressure of the water tank.

The multifunctional thermal experiment platform also includes a security alarm module for performing safety warning on the platform and a data acquisition module for data acquisition.

The pipeline control module forms a structural connection carrier for the data acquisition module, so that the data acquisition module can collect the measurement data of each instrument in a unified manner.

The beneficial effects of the present invention are as follows: first, a multifunctional thermal experiment platform of the present invention, through the combination of multiple outdoor modules, changes the operating state of the outdoor modules and the heater in the high-pressure water tank, providing different cooling loads and stable The temperature and cooling load adjustment range is wide and the precision is high; the present invention can adjust the temperature of the high-pressure water tank module by using a high-refrigerating-capacity refrigeration circuit and a high-power heater under high-power conditions; The cooling circuit is a high-precision experimental environment for experimental equipment.

Second, the high precision of the flow variable device in the present invention is limited to a certain flow range, especially for extremely low flow range, it innovatively overcomes the large error of the conventional single flow variable device in the full scale range. defect. More specifically, when the object to be cooled is high heat load and high flow rate, a flow variable with a high range should be used, and when the object to be cooled is an extremely low flow rate, a flow variable with a low range should be used.

Third, the addition of pigments and particles to the pipeline of the present invention improves the tracing and heat exchange functions of the experimental platform, and more specifically, the flow in the experimental equipment is traced by adding pigments and particles, and the heat exchange enhanced particles are added by adding pigments and particles to trace the flow in the experimental equipment. Improve the enhanced heat transfer capacity of the experimental equipment.

Fourth, the present invention forms a structural connection carrier for the data acquisition module by setting the pipeline control module, and the instrument measurement data is uniformly collected by the data acquisition module, which realizes the experimentation of various experimental equipment, reduces the operation cost, and is convenient to use and maintain;

Fifth, the present invention can perform experiments on different working fluids, and can provide different operating pressures and temperatures, which is especially beneficial for thermal testing under different working conditions. The equipment is protected in time and has strong applicability.

Description of drawings

1 is a schematic diagram of the overall composition of a multifunctional thermal experimental platform of the present invention.

Figure 2 is a schematic diagram of the composition of a high-pressure module of a water tank of a multifunctional thermal experiment platform of the present invention.

3 is a schematic diagram of the composition of a pipeline control module of a multifunctional thermal experiment platform of the present invention.

4 is a schematic diagram of the composition of a high-pressure water tank of a multifunctional thermal experiment platform of the present invention.

The symbols in the accompanying drawings include: 1. Outdoor cooling module; 2. Water tank high-voltage module; 3. Pipeline regulation module; 4. Parameter measurement module; 5. Regulated power supply module; 6. Data acquisition module; 7. Security alarm module ; 11, air-cooled condenser; 12, refrigeration compressor; 13, plate heat exchanger; 14, filter drier; 15, expansion valve; 31, water tank; 32, frequency conversion pump; 33, electric valve; 34, flow variable Repeater; 35, particle replenishment port; 36 pigment replenishment port; 37, valve; 40, experimental equipment; 38 pipeline loop; 39, differential pressure gauge; 41, temperature inverter; 42, pressure inverter; 43, 4um particle filter; 44, 100um particle filter; 45, 1mm particle filter; 46, drain pipe; 48, automatic water supply pipe; 49, pressure valve; 50, water tank pressure gauge; 52, water level variable device; 53 , water inlet pipe; 54, temperature variable device; 55, water outlet pipe; 51, heating rod.

Detailed ways

In order to make those skilled in the art better understand the technical solution of the present invention, the product of the present invention will be described in further detail below with reference to the embodiments and accompanying drawings.

As shown in Figures 1-4, the present invention discloses a multifunctional thermal experiment platform, including an outdoor cooling module 1, a pipeline regulation module 3, a parameter measurement module 4, a regulated power supply module, and a water tank high-voltage module 2. Outdoor cooling The module 1 and the high-pressure module 2 of the water tank realize the cooling of the working fluid in the high-pressure module 2 of the water tank through the plate heat exchanger 13, and the power supply module realizes the heating of the working fluid in the high-pressure module 2 of the water tank through the heating rod 51. The water tank module 2 is in pipeline communication with the parameter measurement module 4 through the pipeline control module 3 to transport the working fluid liquid with stable temperature to the parameter measurement module 4 for subsequent measurement. The external experimental equipment is connected to the pipeline regulation module 3 to realize cooling, and the experimental equipment is connected to the voltage stabilized power supply module 5 to realize heating.

As shown in Figures 1-4, the multifunctional thermal experiment platform also includes a safety alarm module 7 arranged in the high pressure module of the water tank and a data acquisition module 6 arranged in the pipeline control module 3, the safety alarm module 7; the safety alarm module 7 guarantees For the safety of the experiment, the data acquisition module 6 collects the experimental data; the safety alarm module 7 tracks the temperature and pressure of the experimental system to ensure the safety of the experiment; the measurement parameters are uniformly centralized in the data acquisition module 6 for processing, which is convenient for data collection.

As shown in FIG. 2 , the outdoor cooling module 1 includes multiple sets of cooling systems with low cooling load and one set of cooling systems with high cooling load, and different cooling capacities are moderated by switching for precise control. The outdoor cooling module 1 includes an air-cooled condenser 11 arranged outdoors, a refrigeration compressor 12 and a plate heat exchanger 13 built in a water tank. The air-cooled condenser 11 is in pipeline communication with the plate heat exchanger 13 through the refrigeration compressor 12. The plate heat exchanger 13 and the air-cooled condenser 11 form a pipeline loop through the filter drier 14 and the expansion valve 15; The heater adjusts the heating power of the high-pressure module 2 of the water tank to stabilize the temperature of the working fluid. The high-pressure module 2 of the water tank is filled with gas through the pressurizing valve to increase the pressure in the high-pressure water tank and achieve the required operating pressure of the experimental equipment.

In this embodiment, the air-cooled condenser 11 and the refrigeration compressor 12 are placed outdoors, and are cooled by heat exchange with the working medium in the water tank 31 through the plate heat exchanger 13 . The outdoor cooling module 1 is provided with multiple independent refrigerating cycles in parallel to provide cooling load, including multiple independent refrigerating cycles with low refrigerating capacity and an independent set of multiple internal refrigerating cycles with high refrigerating capacity in parallel. The refrigerant in the outdoor module 1 passes through the compressor, the air-cooled condenser 11, the drying filter 14, the expansion valve 15, and the plate heat exchanger 13 to form a cycle. The water pump connects the plate heat exchanger 13 in the outdoor module with the high pressure water tank module 2 indoors and takes away the heat load of the high pressure water tank module.

As shown in FIG. 4 , the high-pressure module 2 of the water tank includes a water tank 31. The water tank 31 is connected to the air source through the water tank pressure gauge 50 and the pressurizing valve 49. The water tank 31 is connected with the plate heat exchanger 13, the heating rod 51, and the temperature inverter 54. , the water level inverter 52; the water tank pressure gauge 50 feedbacks the pressure in the water tank 31, and the water tank 31 reaches the operating pressure required for the experiment through the pressurized valve 54; The heating rod 51 adjusts the temperature of the water tank 31 together through the temperature feedback of the temperature inverter 54 . The water tank 31 is also provided with a drain valve, so that the water tank 31 can accommodate different liquid working fluids and conduct experiments under different working fluids. The water tank is also provided with a water inlet and outlet, which is connected to the pipeline system of the experiment; the water level changer 52 detects the water level in the water tank 31, and when the water level is insufficient, the water inlet valve is opened to replenish water to ensure the safety and stability of the experiment; Correspondingly, a drain pipe 46 , an automatic water supply pipe 48 , a water inlet pipe 53 and a water outlet pipe 55 are provided to facilitate the regulation of the water level in the water tank 31 .

As shown in FIG. 3 , the pipeline control module 3 includes a variable frequency pump 32 , an electric valve 33 , a temperature inverter 41 , a particle replenishing port 35 , and a pressure inverter 42 . The water tank 31 in the high-pressure water tank module 3 passes through the variable frequency pump 32 , the electric valve 33, the differential pressure gauge 39, the particle supplement port 35 are connected with the experimental equipment 40 of the parameter measurement module, and the experimental equipment 40 of the parameter measurement module 4 passes through the temperature variable device 41, the pressure variable device 42, the flow variable variable The device 34 and the water tank 31 form a pipeline loop. When the variable frequency pump 32 and the electric valve 33 are adjusted in the pipeline loop, the working fluid flow reaches the required range of the experiment. Through the cooperation of the valve and the loop, the flow inlet of the experimental equipment can be accurately adjusted. According to the actual size of the flow rate, the flow variable device 34 with different ranges is selected, and the pipeline control module 2 is provided with a plurality of high-precision flow variable devices 34 with different ranges to meet the high-precision measurement requirements of different flow rates; 41. The pressure variable device 42 can detect the temperature and pressure changes of the experimental equipment, and can respond in time to protect the experimental equipment when abnormal conditions occur. In addition, there is also a flow variable device 34 in the water tank 31 to control the flow rate, depending on the experimental equipment. According to the flow requirements, the working fluid can pass through the different ranges of flow changers on the pipelines with different diameters. The pipeline control module 3 can fine-tune the flow through the adjustment of the pipeline loop to meet the flow requirements of the experimental equipment.

The particle replenishment port 35 in the pipeline control module 3 of the present invention can add particulate matter to the flowing working fluid to meet the experimental conditions of the experimental equipment for nanofluids. Coloring the fluid, so that the fluid coloring meets the visual fluid experiment; the pipeline control module 3 is also equipped with particle filters, including but not limited to 4um particle filter 43, 100um particle filter 44, 1mm particle filter 45, filter out nanoparticle experiments The working medium particles added by the particle replenishing port 35 at the same time can reduce the damage to the variable frequency pump 32 and the water tank 31 .

In the present invention, the regulated power supply module 5 includes a high-power regulated power supply box, and the high-power regulated power supply box is connected to an external transformer to adjust the heating power of the experimental equipment; the regulated power supply module 5 provides a stable and variable current to the experimental heat source , to ensure a stable heat load in the experiment; after the pressure setting of the water tank 31 is completed, the liquid working medium in the water tank 31 is maintained by the outdoor cooling module 1 and the heating rod inside the water tank 31 to keep the temperature of the working medium stable, and the working medium adjusts the flow rate through the pipeline system After reaching the experimental requirements, enter the experimental equipment to carry out thermal experiments; the working fluid is water, glycerol or high temperature oil.

At the same time, it should be noted that the present invention also includes a parameter statistics module and a control module. The parameter statistics module includes a thermocouple, a differential pressure gauge, and a pressure gauge. The parameter statistics module is connected to the computer through the data acquisition module for detecting and recording operating data. . The control module controls the overall adjustment and control of the experimental platform. The heating rod, condenser, compressor, variable frequency pump, electric valve, water tank liquid level, and nitrogen pressure are all controlled by computer, which can control the inlet water temperature and pump power of the experimental system. , Experimental operating pressure, flow control to control.

In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device. Or elements must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The above-mentioned embodiments are only specific embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the patent of the present invention. It should be pointed out that, for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, and these obvious alternative forms all belong to the protection scope of the present invention.

Claims (10)

1. A multifunctional thermal experiment platform, comprising an outdoor cooling module, a pipeline regulation module, a parameter measurement module, a regulated power supply module and a water tank high-voltage module, wherein external experimental equipment is connected with the pipeline regulation module to realize cooling , the experimental equipment is connected with the regulated power supply module to achieve heating; the outdoor cooling module cooperates with the heating rod in the high-pressure module of the water tank to maintain the temperature of the working medium through the plate heat exchanger, and the high-pressure water tank module is connected to the parameter measurement module through the pipeline control module. The temperature-stable working fluid is sent to the parameter measurement module for subsequent measurement.
2. The multifunctional thermal experiment platform according to claim 1, wherein the outdoor cooling module comprises an air-cooled condenser, a refrigeration compressor and a plate heat exchanger built in a water tank, which are arranged outdoors. The condenser is communicated with the plate heat exchanger pipeline through a refrigeration compressor, and the plate heat exchanger and the air-cooled condenser form a pipeline loop through a drying filter and an expansion valve.
3. The multifunctional thermal experiment platform according to claim 1, wherein the pipeline control module comprises a variable frequency pump, an electric valve, a temperature inverter, a particle replenishing port, and a pressure inverter, wherein the high-pressure water tank The module is connected with the experimental equipment pipeline of the parameter measurement module through the pipeline regulation module.
4. The multifunctional thermal experimental platform according to claim 1 is characterized in that: the experimental equipment at the parameter measurement module forms a pipeline loop through a temperature transformer, a pressure transformer, a flow transformer and a water tank.
5. The multifunctional thermal engineering experimental platform according to claim 1, characterized in that: the regulated power supply module further comprises a high-power regulated power supply box, which is electrically connected to the parameter measurement module to provide regulated power supply for experimental equipment. The power stabilized power supply box realizes the debugging of the heating power of the experimental equipment through an external transformer.
6. The multifunctional thermal experiment platform according to claim 1, wherein the water tank in the high-pressure module of the water tank is communicated with the air source through a water tank pressure gauge and a pressurizing valve, and the water tank has a built-in plate heat exchanger, heating Rods, temperature inverters, water level inverters.
7. The multifunctional thermal experiment platform according to claim 1, wherein the working fluid is water, glycerol or nanofluid.
8. The multifunctional thermal experiment platform according to claim 6, wherein the water tank is provided with a pressurizing valve for adjusting the pressure of the water tank.
9. The multifunctional thermal experiment platform according to any one of claims 1-8, characterized in that: the multifunctional thermal experiment platform further comprises a safety alarm module for carrying out safety warning on the platform and a data acquisition module for data collection .
10. The multifunctional thermal experiment platform according to claim 1, wherein the pipeline control module forms a structural connection carrier for the data acquisition module, so that the data acquisition module can collect the measurement data of each instrument in a unified manner.

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