CN114018791A - Artificial climate environment comprehensive simulation system - Google Patents
Artificial climate environment comprehensive simulation system Download PDFInfo
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- CN114018791A CN114018791A CN202111243972.XA CN202111243972A CN114018791A CN 114018791 A CN114018791 A CN 114018791A CN 202111243972 A CN202111243972 A CN 202111243972A CN 114018791 A CN114018791 A CN 114018791A
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- 238000012360 testing method Methods 0.000 claims abstract description 103
- 230000005855 radiation Effects 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000009792 diffusion process Methods 0.000 claims abstract description 10
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 239000007788 liquid Substances 0.000 claims description 42
- 239000000243 solution Substances 0.000 claims description 33
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- 238000007791 dehumidification Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 14
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Abstract
The invention discloses a comprehensive artificial climate environment simulation system which comprises a gas collection section, a fresh air processor, a test cabin, a diffusion section and a fan section which are sequentially communicated; the fan section is provided with a fan, and under the driving of the fan, air sequentially passes through the gas collection section, the fresh air processor, the test chamber and the diffusion section and is then discharged from the tail part of the fan section. The fresh air processor is used for controlling the air humidity; a sensible heat treatment system for adjusting the air temperature is arranged in the test chamber, and equipment for simulating Taiyang Dongshi and radiation intensity is further arranged in the test chamber. The artificial climate environment comprehensive simulation system can comprehensively simulate temperature, relative humidity, solar radiation intensity, wind speed and wind direction, can simulate a more real outdoor environment, saves cost, reduces energy consumption, improves the accuracy of the artificial climate environment, creates good air quality and creates a healthy and comfortable test environment.
Description
Technical Field
The invention relates to a comprehensive artificial climate environment simulation system, and belongs to the field of environment simulation.
Background
Outdoor weather condition changes are difficult to control, but a relatively stable weather environment is often required in scientific research. Therefore, it is necessary to provide a controllable climatic environment system for experimental research to study and analyze the influence of outdoor weather conditions on the test object.
Most of the existing artificial climate environment systems simulate single or combined outdoor climate parameters, namely, simulate temperature, relative humidity, solar radiation intensity, wind speed and wind direction singly or in combination. The comprehensive simulation of outdoor climate conditions also adopts the traditional air conditioning system to adjust the indoor temperature and humidity through the heat and humidity treatment of the air by the same equipment, and the indoor temperature can only be kept unchanged by adjusting the capacity of the equipment according to the requirement, at the moment, the indoor relative humidity is changed, so the humidity cannot be accurately controlled. Moreover, the traditional air conditioner heat and humidity treatment mode is mainly convection heat exchange, radiation and heat conduction heat exchange are not reflected, the principle is not completely consistent with the actual temperature and humidity heat exchange principle of the outdoor environment, and the outdoor environment condition cannot be truly reflected. In addition, the traditional air conditioning system needs to adopt low-temperature chilled water for regulating the indoor temperature and humidity in summer, the cooling efficiency of the water chiller is low, no steam is available for humidification in winter, a humidification device needs to be additionally arranged, such as electric heating humidification and wet film humidification, and the energy consumption of the whole year operation is large.
Disclosure of Invention
Aiming at the problems of the existing artificial climate environment system, the invention provides the artificial climate environment comprehensive simulation system which can comprehensively simulate the temperature, the relative humidity, the solar radiation intensity, the wind speed and the wind direction and can simulate a more real outdoor environment.
In order to solve the technical problems, the invention comprises the following technical scheme:
a kind of artificial climate environment comprehensive simulation system includes the gas collection section, new trend processor, test cabin, diffusion section, blower section that communicate sequentially; the fan section is provided with a fan, and air passes through the gas collection section, the fresh air processor, the test cabin and the diffusion section in sequence under the driving of the fan and is then discharged from the tail part of the fan section;
the fresh air processor is used for controlling the air humidity so that the air humidity meets the experimental requirements;
a sensible heat treatment system for adjusting the air temperature is arranged in the test chamber and comprises a heat pump unit, a water supply pipe, a water return pipe and a radiation coil pipe; the heat pump unit can provide hot water or cold water, enters the coil pipe through the water supply pipe and returns to the heat pump unit through the water return pipe; after the air passing through the fresh air processor is subjected to sufficient heat exchange with the radiation coil pipe, the air enters the test cabin, so that the temperature in the test cabin meets the requirement;
a wind speed probe is arranged in the test cabin and used for measuring the wind speed in the test cabin and adjusting the rotating speed of the fan according to the wind speed so that the wind speed meets the requirement; the bottom of the test chamber is provided with a first electric turntable, a test model is arranged on the first electric turntable, and the first electric turntable can drive the test model to rotate, so that the wind direction acting on the test model meets the requirement;
the top of the test chamber is provided with an electric turntable II, an electric slide rail is arranged below the electric turntable II, an expansion link is arranged on the electric slide rail, and the bottom end of the expansion link is provided with a short-arc xenon lamp; the electric sliding rail is matched with the telescopic rod to stretch and retract so as to simulate the rising and falling of the sun east, a solar radiation intensity sensor is arranged in the test chamber to measure the solar radiation intensity in the chamber, and accordingly, the radiation intensity of the short-arc xenon lamp is controlled in a linkage manner, so that the radiation intensity of the short-arc xenon lamp meets the requirement.
Further, the fresh air processor comprises a liquid distribution pipe, a salt solution transmission and distribution system, a liquid tank, a liquid storage tank, a regenerator, a first solution pump and a second solution pump;
one end of the liquid storage tank is provided with a solution pump I which is communicated with the liquid distribution pipe through a saline solution transmission and distribution system; the liquid distribution pipe uniformly sprays the salt solution into the air to be fully mixed with the air, and the salt solution absorbs the moisture in the air or releases the moisture to the air by controlling the concentration of the salt solution, so that the humidity of the air meets the requirement, and the salt solution is gathered in the liquid tank and flows back to the liquid storage tank;
the other end of the liquid storage tank is provided with a solution pump II which is communicated with a regenerator, and the regenerator is used for changing the concentration of the salt solution; the second solution pump is used for conveying the salt solution in the storage tank to the regenerator; the regenerated salt solution in the regenerator can flow into the reservoir.
Furthermore, the fresh air processor also comprises a heat exchanger and an auxiliary external heat pump unit;
the heat exchanger is arranged between the first solution pump and the salt solution transmission and distribution system and is connected with an auxiliary external heat pump unit;
the auxiliary external heat pump unit exchanges heat with the saline solution by providing cold water or hot water into the heat exchanger, and changes the temperature of the saline solution, thereby changing the dehumidification or humidification effect of the saline solution.
Furthermore, a temperature and humidity sensor is arranged in the test chamber and used for measuring the actual humidity in the test chamber and controlling the fresh air processor to adjust the air humidity according to the actual humidity.
Further, the salt solution in the fresh air processor is fully mixed with high-temperature air, so that the heat in the air is absorbed, and the temperature of the air is preliminarily regulated and controlled;
the temperature of chilled water in the heat pump unit is controlled to be 16-18 ℃.
Further, the salt solution in the fresh air processor is fully mixed with low-temperature air, so that the temperature of the air is increased, and the temperature of the air is preliminarily regulated and controlled;
the temperature of hot water in the heat pump unit is 25-35 ℃.
Furthermore, a humidity sensor is arranged at the inlet of the gas collection section and used for measuring the air humidity H2According to the humidity H of the air2And the required humidity range of the test [ H0，H1]The relation between the air inlet and the air outlet controls the working mode of the fresh air processor;
furthermore, a humidity sensor is arranged at the inlet of the gas collection section and used for measuring the air humidity H2According to the humidity H of the air2And the required humidity range of the test [ H0，H1]The relation between the air inlet and the air outlet controls the working mode of the fresh air processor;
a humidity sensor is arranged in the test chamber and used for measuring the air humidity H3According to the humidity H of the air3And the required humidity range of the test [ H0，H1]The relation between the first solution pump and the second solution pump, the flow rate of the salt solution of the first solution pump is controlled,the dehumidifying or humidifying capacity of the fresh air processor is changed.
Furthermore, a temperature sensor is arranged in an air channel at the joint of the fresh air processor and the test cabin and used for measuring the initial temperature T of the air entering the test cabin2And according to the initial temperature T2With a desired temperature range [ T0，T1]The relation between the sensible heat treatment system and the sensible heat treatment system, and the working mode of the sensible heat treatment system;
a temperature sensor is arranged in the test chamber and is used for measuring the initial temperature T of the air entering the test chamber3And according to the initial temperature T3With a desired temperature range [ T0，T1]The valve opening of the heat pump unit of the sensible heat treatment system is controlled according to the relationship between the sensible heat treatment system and the sensible heat treatment system.
Further, the artificial climate environment system also comprises a control cabinet;
a temperature and humidity control panel is arranged on the control cabinet and used for setting a temperature and humidity set value and displaying an actual temperature and humidity value;
the control cabinet is also provided with a solar radiation intensity control panel for setting a radiation intensity set value and displaying an actual radiation intensity value;
the control cabinet is also provided with a slide rail control panel for setting a slide rail coordinate set value and a telescopic rod length set value;
the control cabinet is also provided with a wind speed control panel for setting a wind speed set value and displaying a wind speed actual value, a motor frequency value and a current value; the wind speed control panel is also provided with a manual wind speed adjusting button, a starting button and a stopping button;
and the control cabinet is also provided with an electric turntable control panel for controlling the rotation angles of the first electric turntable and the second electric turntable.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the artificial climate environment comprehensive simulation system provided by the invention can comprehensively simulate temperature, relative humidity, solar radiation intensity, wind speed and wind direction, and can simulate a more real outdoor environment; heat and moisture exchange in the test chamber is carried out through three modes of radiation, convection and heat conduction, and the heat and moisture exchange mode is more in line with the outdoor heat and moisture exchange mode; the temperature and the relative humidity are independently controlled, the indoor temperature and the relative humidity are more accurately adjusted, and the accuracy of the artificial climate environment is improved; the fresh air processor can achieve the effect of regulating outdoor high temperature and low temperature while regulating and controlling humidity, reduces the requirement on a sensible heat treatment system in the test chamber, improves the temperature of cold water in the heat pump unit, reduces the temperature of hot water, saves cost and reduces energy consumption; by controlling dew condensation, good air quality is created, and a healthy and comfortable test environment is created.
Drawings
FIG. 1 is a schematic structural diagram of a synthetic artificial climate environment simulation system according to the present invention;
FIG. 2 is a schematic view of a fresh air handling machine according to the present invention;
FIG. 3 is a schematic diagram of a test chamber according to the present invention;
FIG. 4 is a three-dimensional schematic of a test chamber of the present invention;
FIG. 5 is a schematic diagram of the air temperature adjustment by the fresh air handler of the present invention;
FIG. 6 is a schematic diagram of the sensible heat treatment system of the present invention regulating air temperature;
FIG. 7 is a schematic diagram of the automatic control of wind speed in the present invention;
fig. 8 is a schematic diagram of a control cabinet according to the present invention.
The numbers in the figures are as follows:
1 is a gas collection section; 2 is a fresh air processor; 3 is a test chamber; 4 is a diffusion section; 5 is a fan section; 6 is a liquid distribution pipe; 7 is a saline solution delivery and distribution system; 8 is a liquid tank; 9 is a liquid storage tank; 10 is a regenerator; 11 is a solution pump I; 12 is a solution pump II; 13 is a heat exchanger; 14 is an auxiliary external heat pump unit; 15 is a heat pump unit; 16 is a water supply pipe; 17 is a water return pipe; 18 is a radiant coil; 19 is an electric turntable I; 20 is an electric slide rail; 21 is a telescopic rod; 22 is a short arc xenon lamp; 23 is a wind speed probe; 24 is a solar radiation intensity sensor; 25 is a temperature sensor; 26 is a humidity sensor; 27 is a lead hole; 28 is a test model; 29 is a fan; 30 is a temperature and humidity control panel; 31 is a solar radiation intensity control panel; 32 is a slide rail control panel; 33 is a wind speed control panel; 34 is an electric turntable control panel; 35 is a data transmission interface I; 36 is a second data transmission interface; 37 is a third data transmission interface; 38 outdoor temperature and humidity sensor.
Detailed Description
The present invention provides a system for simulating a climatic environment in a comprehensive manner, which is described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example one
The invention provides a temperature and humidity independently controlled artificial climate environment system, as shown in figure 1, the environment system comprises a gas collection section 1, a fresh air processor 2, a test cabin 3, a diffusion section 4 and a fan section 5 which are sequentially communicated. The fan section is provided with a fan 29, and under the driving of the fan, air passes through the fresh air processor 2, the test cabin 3 and the diffusion section 4 in sequence and then is discharged from the tail part of the fan section 5.
The fresh air processor 2 mainly controls the air humidity to enable the air humidity to meet the experimental requirements. The humidity control by the fresh air processor can be realized by the prior art, but this embodiment provides a more preferable implementation, which is further described below with reference to fig. 1 and 2.
The fresh air processor 2 comprises a liquid distribution pipe 6, a salt solution transmission and distribution system 7, a liquid tank 8, a liquid storage tank 9, a regenerator 10, a first solution pump 11 and a second solution pump 12. 9 one end is irritated to stock solution is provided with solution pump 11 to communicate through salt solution distribution system 7 and cloth liquid pipe 6, cloth liquid pipe 6 evenly sprays the salt solution in the air, with the air intensive mixing, through the concentration of control salt solution, make the salt solution absorb the moisture in the air or to release moisture in the air, thereby make the humidity of air satisfy the requirement, then the salt solution assembles in the cistern, flows back to stock solution and irritates 9. The regenerator 10 is used for changing the concentration of the salt solution, adjusting the concentration of the salt solution by adding water, absorbing water or adding salt and the like, and the second solution pump 12 is used for conveying the liquid storage tank 9 into the regenerator 10.
When the humidity of monitoring the air is greater than the humidity that needs, new trend processor 2 opens the dehumidification mode, specifically is: the salt solution in the liquid storage pot 9 is concentrated salt solution, the solution pump 11 extracts concentrated salt solution from the liquid storage pot 9, send to the liquid distribution pipe 6 through the salt solution distribution system 7, the salt solution that sprays mixes with the air intensive mixing, absorb moisture in the air, salt solution self concentration reduces, flow back to the liquid storage pot 9 behind the drippage to cistern 8 in, when salt solution concentration in the liquid storage pot 9 is less than the setting value, the salt solution in the solution pump two 12 will liquid storage pot 9 is sent to regenerator 10 and is concentrated regeneration, concentrated regeneration salt solution flows back to the liquid storage pot 9, so the circulation.
When the humidity of the monitored air is less than the required humidity, the fresh air processor 2 starts a humidification mode, which specifically comprises the following steps: the salt solution in the liquid storage pot 9 is dilute salt solution, the dilute salt solution is extracted from the liquid storage pot 9 by the first solution pump 11, the salt solution is delivered to the liquid distribution pipe 6 through the salt solution distribution system 7, the sprayed salt solution is fully mixed with air, moisture is released to the air, the concentration of the salt solution rises, the salt solution drips to the liquid tank 8 and then flows back to the liquid storage pot 9, when the concentration of the salt solution in the liquid storage pot 9 is higher than a set value, the salt solution in the liquid storage pot 9 is delivered to the regenerator 10 by the second solution pump 12 for dilution and regeneration, the diluted and regenerated salt solution flows back to the liquid storage pot 9, and the circulation is carried out.
If the salt solution can not achieve the expected humidity control effect, an auxiliary means needs to be further added to improve the humidity control effect. In a preferred embodiment, the fresh air processor 2 is provided with a heat exchanger 13 and an auxiliary external heat pump unit 14. The heat exchanger 13 is arranged between the first solution pump 11 and the salt solution transmission and distribution system 7, and the heat exchanger is connected with an auxiliary external heat pump unit 14. Reduce the temperature of dehumidification in-process solution, can strengthen the dehumidification ability, consequently, when new trend processor 2 opened the dehumidification mode, supplementary outside heat pump set 14 provided cold water earlier in heat exchanger 13 and carried out the heat transfer with the salt solution, reduced the temperature of dehumidification in-process solution to reach better dehumidification effect. The temperature of the solution in the humidification process is improved, the humidification effect can be improved, therefore, when the fresh air processor 2 starts the humidification mode, the auxiliary external heat pump unit 14 is needed to provide hot water to exchange heat with the salt solution in the heat exchanger 13, the temperature of the solution in the humidification process is improved, and the better humidification effect is achieved.
Referring to fig. 1, 3 and 4, a sensible heat treatment system for adjusting the air temperature is disposed in the test chamber 3, and the sensible heat treatment system includes a heat pump unit 15, a water supply pipe 16, a water return pipe 17 and a radiation coil 18. The heat pump unit 15 may provide hot or cold water, which enters the coil through a water supply pipe 16 and then returns to the heat pump unit 15 through a return pipe 17. After the air passing through the fresh air processor 2 is subjected to sufficient heat exchange with the radiation coil 18, the air enters the test cabin. When the temperature of the air exhausted by the fresh air processor 2 is higher than the required test temperature, the heat pump unit 15 provides chilled water, and the chilled water is conveyed to the radiation coil 18 through the water supply pipe 16 and then returns to the heat pump unit 15 through the water return pipe 17. When the temperature of the air exhausted by the fresh air processor 2 is lower than the required test temperature, the heat pump unit 15 provides hot water, and the hot water is conveyed to the radiation coil 18 through the water supply pipe 16 and then returns to the heat pump unit 15 through the water return pipe 17.
It should be noted that, the salt solution of fresh air processor 2 has accomplished the work of indoor preliminary heat exchange when carrying out intensive mixing with the air, especially says the effect more obvious to high temperature air and microthermal air, and the air of high temperature can obviously reduce through fresh air processor 2, and microthermal air can obviously rise through fresh air processor 2 to the temperature range of the air that makes to get into in the test chamber narrows, is favorable to sensible heat processing system to regulate and control air temperature more. An outdoor temperature sensor 38 may also be provided to monitor the outdoor temperature, and the difference between the outdoor temperature and the temperature of the air discharged from the fresh air processor 2 is the temperature adjusted by the fresh air processor. For example, assuming that the test temperature is 22 degrees, when the outdoor temperature is too high, 32 degrees or even more than 35 degrees, if the outdoor temperature is lowered by only the heat pump unit 15, chilled water of 7 degrees may need to be provided, however, the salt solution absorbs heat in part of the air when being sufficiently mixed with the air, so that the temperature is lowered from the extreme temperature to below 30 degrees, and therefore, the temperature of the chilled water in the heat pump unit 15 can be effectively adjusted by controlling the temperature to be 16-18 ℃; when the outdoor temperature is too low, 5 degrees or even below 0 degree, if the temperature is raised by the heat pump unit 15, hot water with higher temperature may need to be provided, however, when the salt is dissolved in the air and is fully mixed with the air, the salt supplements heat for the air, and the temperature is raised to more than 10 degrees from an extreme low temperature, so that the temperature of the hot water in the fresh air processor 2 can be effectively adjusted by controlling the temperature to be 25-35 ℃. The temperature is preliminarily adjusted through the fresh air processor 2, and then the required temperature is further adjusted through the sensible heat treatment system, so that the requirements on the heat pump unit can be reduced, the equipment cost is reduced, and the energy consumption of the heat pump unit is reduced through reducing the operation condition. In addition, when the temperature of the chilled water provided by the heat pump unit 15 is 16-18 ℃, the temperature of the supplied water is higher than the dew point temperature of indoor air, so that the radiation coil 18 does not have the risk of condensation. Further, a temperature sensor 25 is arranged in the test chamber, the temperature in the test chamber is measured, and accordingly the sensible heat treatment system is controlled in a linkage mode to adjust the temperature environment in the test chamber.
Referring to fig. 1, 3 and 4, a first electric rotating disc 19 is arranged at the bottom of the test chamber 3, a test model 28 is arranged on the first electric rotating disc 19, and the first electric rotating disc can drive the test model to rotate. Test chamber 3 the construction of the wind environment was of the eiffel type. The fan 29 rotates to make the air enter the test chamber 3 after passing through the air collection section 1 and being processed by the fresh air processor 2, and the wind speed in the test chamber is changed by adjusting the rotating speed of the fan, so that the wind speed environment required by research is provided. The test chamber 3 is internally provided with a wind speed probe 23, the wind speed probe 23 can measure the wind speed in the chamber, and the motor rotating speed of the motor section is controlled in a linkage manner so as to adjust the wind speed. By changing the angle of the test pattern 28 by the turntable, the wind direction acting on the test pattern 28 can be adjusted.
The top of the test chamber 1 is provided with an electric turntable II (not marked), an electric slide rail 20 is arranged below the electric turntable II, an expansion link 21 is arranged on the electric slide rail 20, and the bottom end of the expansion link is provided with a short-arc xenon lamp 22; the electric sliding rail is matched with the telescopic rod to stretch and retract so as to simulate the rising and falling of the sun, the solar radiation intensity sensor 24 is arranged in the test chamber 3 to measure the solar radiation intensity in the chamber, and accordingly the radiation intensity of the short-arc xenon lamp 22 is controlled in a linkage mode.
The method for automatic control of the wind speed in the test chamber is described further below. Referring to fig. 1, 3, 4 and 7, a wind speed probe 23 is disposed in the test chamber, and is capable of measuring the wind speed in the test chamber and controlling the motor speed of the motor section to adjust the wind speed in a linkage manner. By way of example, the wind speed is controlled using a closed loop control based on PID. The hardware of the wind speed control part comprises a computer, a PID regulator, a frequency converter, an alternating current motor, a differential pressure sensor, a human-computer interface and the like. The computer calculates corresponding output digital signals by adopting a PID algorithm after comparing a set value with an actually measured wind speed value, the output digital signals are converted into analog signal quantity by a PLC through D/A and output to a frequency converter, the input frequency of a motor is changed by utilizing the frequency converter to change the rotating speed of the motor to adjust the wind speed, a differential pressure sensor measures dynamic pressure in a test cabin, the dynamic pressure value is transmitted to the PID regulator, the dynamic pressure is converted into the wind speed, the converted wind speed is compared with a deviation value of a given wind speed signal, the optimized PID algorithm is adopted to control the analog output signals to change the frequency of the frequency converter, so that the set value and the feedback of the wind speed are equal or close, and the closed-loop control of the wind speed is realized.
As shown in fig. 3 and 4, the wiring of the equipment in the test chamber 3 can be connected to the outside through the lead holes 27.
As shown in fig. 8, in order to realize precise and efficient control of the artificial climate environment, the artificial climate environment system further includes a control cabinet. The control cabinet is provided with a temperature and humidity control panel 30 which comprises a temperature and humidity set value, a temperature and humidity actual value, an operation indicator light, an alarm indicator light, a start button, a stop button, a reset button and the like, and a first data transmission interface 35 is arranged to input or derive temperature and humidity data in the cabin. The control cabinet is also provided with a solar radiation intensity control panel 31 which comprises a radiation intensity set value, a radiation intensity actual value, an operation indicator light, an alarm indicator light, a start button, a stop button, a reset button and the like, and meanwhile, a second data transmission interface 36 is arranged to input or derive solar radiation intensity data in the cabin. The control cabinet is also provided with a slide rail control panel 32 which comprises a slide rail coordinate set value, a telescopic rod length set value, an operation indicator light, an alarm indicator light, a start button, a stop button, a reset button and the like. The control cabinet is also provided with a wind speed control panel 33 which comprises a wind speed set value, a wind speed actual value, a motor frequency value, a current value, an operation indicator lamp, an alarm indicator lamp, a manual wind speed adjusting button, a start button, a stop button, a reset button and the like, and a data transmission interface III 37 is arranged to input or derive wind speed data in the cabin. The control cabinet is also provided with an electric turntable control panel 34 for controlling the first electric turntable and the second electric turntable, and the electric turntable control panel comprises a rotation angle set value, an operation indicator lamp, an alarm indicator lamp, a start button, a stop button, a reset button and the like.
Example two
The embodiment provides a comprehensive simulation method for a man-made climate environment, which adopts a comprehensive simulation system for the man-made climate environment to comprehensively simulate humidity, temperature, illumination, wind speed and wind direction, and the description of the first embodiment refers to the comprehensive simulation system for the man-made climate environment. The method for comprehensive simulation of the artificial climate environment is further described below with reference to fig. 1 to 8.
The artificial climate environment comprehensive simulation method comprises the following steps:
the method comprises the following steps that firstly, a fan is started, and air passes through a gas collection section, a fresh air processor, a test chamber and a diffusion section in sequence under the driving of the fan and then is discharged from the tail of the fan section;
secondly, a wind speed probe of the test cabin measures the wind speed in the test cabin, and the rotating speed of a fan is adjusted according to the wind speed so that the wind speed meets the requirement;
step three, the fresh air processor controls the air humidity to enable the air humidity to meet the experiment requirements;
step four, a sensible heat treatment system in the test chamber adjusts the air temperature to enable the temperature in the test chamber to meet the requirement; controlling the electric turntable to rotate and brake so that the wind direction acting on the test model meets the requirement; the direction of the electric sliding rail is changed by controlling the electric turntable II, and the electric sliding rail is matched with the telescopic rod to stretch and retract in a sliding manner, so that the rising and falling of the sun east are simulated; the solar radiation intensity in the cabin is measured through the solar radiation intensity sensor, and accordingly the radiation intensity of the short-arc xenon lamp is controlled in a linkage mode, so that the radiation intensity of the short-arc xenon lamp meets the requirements.
A preferred embodiment is that, with reference to fig. 1, fig. 2 and fig. 5, the fresh air processor controls the humidity of air, and adjusts the rotation speed of the fan accordingly so that the wind speed meets the requirement, which specifically includes the following steps:
step one, presetting a humidity range [ H ] required by a test0，H1](ii) a A humidity sensor is arranged at the gas collection section to monitor the air humidity H2Monitoring the air humidity H in the test chamber3(ii) a If H is2∈[H0，H1]Then go to step two, if H2＞H1Then the step three is carried out; h2＜H0Then the step four is carried out;
step two, closing the fresh air processor;
step three, controlling the fresh air processor to be in a dehumidification mode to enable the fresh air processor to be in the dehumidification mode3∈[H0，H1](ii) a If H is3＞H1The flow of the concentrated salt solution is increased, the dehumidification capacity is enhanced, and H is enabled3The requirements are met; if H is3＜H0The flow of the concentrated salt solution is reduced, the dehumidification capacity is reduced, and H is enabled3The requirements are met;
fourthly, controlling the sensible heat treatment system to be in a humidifying mode to enable H3∈[H0，H1](ii) a If H is3＞H1The flow rate of the dilute salt solution is reduced, the humidifying capacity is reduced, and H is increased3The requirements are met; if H is3＜H0Increasing the flow of the dilute salt solution, increasing the humidifying capacity, and enabling H3Meets the requirements.
It should be noted that, when the fresh air handler is in the dehumidification mode, and H is3＞H1H cannot be caused by increasing the flow of the concentrated salt solution3When the requirement is met or the adjusting time is long, the auxiliary external heat pump unit 14 is started, the amount of cold water entering the heat exchanger is increased, the temperature of the concentrated salt solution is reduced, the dehumidification capacity is enhanced, and H is enabled to be achieved3The requirements are met; if H is3＜H0H cannot be caused by increasing the flow of the concentrated salt solution3When the requirement is satisfiedOr when the adjusting time is longer, the auxiliary external heat pump unit 14 is started, the amount of cold water entering the heat exchanger is reduced, the temperature of the concentrated salt solution is increased, the dehumidification capacity is reduced, and H is enabled to be3Meets the requirements. When the fresh air processor is in the humidifying mode, and H3＞H1H cannot be adjusted by reducing the flow of dilute salt solution3When the requirement is met or the adjusting time is longer, the amount of hot water entering the heat exchanger is reduced, the temperature of the dilute salt solution is reduced, and H is enabled to be3The requirements are met; if H is3＜H0Increasing the flow of dilute salt solution, failing to make H3When the requirement is met or the adjusting time is long, the auxiliary external heat pump unit 14 is started, the amount of hot water entering the heat exchanger is increased, the temperature of the dilute salt solution is increased, and H is enabled to be3Meets the requirements.
In a preferred embodiment, as shown in fig. 1, 3, 4 and 6, the sensible heat treatment system in the test chamber adjusts the air temperature to make the temperature in the test chamber meet the requirement, and specifically includes the following steps:
step one, presetting a temperature range [ T ] required by a test0，T1](ii) a The temperature sensor is arranged at the air outlet section of the fresh air processor and used for measuring the initial temperature T of the air entering the test chamber2(ii) a If T2∈[T0，T1]Then go to step two, if T2＞T1Then the step three is carried out; t is2＜T0Then the step four is carried out;
step two, closing a sensible heat treatment system;
step three, controlling the sensible heat treatment system to be in a cooling mode, and measuring the temperature T in the test chamber3Let T be3∈[T0，T1](ii) a If T3＞T1The valve opening of the heat pump unit 15 is increased to increase the amount of cold water entering the radiant coil pipe, so that T is increased3The requirements are met; if T3＜T0The valve opening of the heat pump unit 15 is reduced, and the amount of cold water entering the radiant coil pipe is reduced, so that T3The requirements are met;
step four, controlling the sensible heat processing system to be in a heating mode, and measuring the temperature T in the test cabin3(ii) a If T3＞T1The valve opening of the heat pump unit 15 is reduced to reduce the amount of hot water entering the radiant coil pipe, so that t1The requirements are met; if T3＜T0The valve opening of the heat pump unit 15 is increased to increase the amount of hot water entering the radiant coil.
When the sensible heat treatment system is in the cooling mode, dew condensation occurs when the temperature of the inner surface of the test chamber is lower than the dew condensation temperature, so that dew condensation control needs to be performed in the room, and the temperature of the inner surface of the test chamber needs to be ensured to be higher than the dew point temperature of the test chamber. Monitoring the surface temperature t of the water supply pipe 161Let the temperature of the most unfavorable surface of the room be t2(ii) a Room dew point temperature t3Let the minimum dew point temperature be t4. The most unfavorable surface temperature t of the room due to the influence of plastering and the like2Temperature t monitored by a surface temperature monitor of the chilled water supply pipe 161There is a difference Δ t between1I.e. t2＝t1+Δt1(ii) a Room dew point temperature t3The dew point temperature of the most unfavorable point is t4Or may not be the same, the difference between the two being Δ t2I.e. t4＝t3+Δt2. When the radiant cooling coil 18 does not condense, t must be ensured2＞t4，t1+Δt1＞t3+Δt2I.e. t1+Δt＞t3，Δt＝Δt1-Δt2. Room dew point temperature t3And can be measured by a dew point thermometer or can be calculated by a temperature sensor 25 and a humidity sensor 26. To better control the radiant cooling coil 18 to operate in dry mode, Δ t is set to 1 deg.C in this embodiment. When the temperature t monitored by the surface temperature monitor of the water supply pipe 16 is detected1At 17.5 deg.C, room dew point temperature t3When the temperature reaches 18 ℃ (control domain of +/-0.5 ℃), dust generation and condensation prevention alarm is carried out, and a room freezing water valve is closed to stop cooling; room dew point temperature t3When the temperature reaches 17.5 ℃, the water valve returns to normal control. Ensuring that the radiant coils 18 in the room are always running dry.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A system for comprehensively simulating artificial climate environment is characterized in that,
the artificial climate environment system comprises a gas collection section, a fresh air processor, a test cabin, a diffusion section and a fan section which are sequentially communicated; the fan section is provided with a fan, and air passes through the gas collection section, the fresh air processor, the test cabin and the diffusion section in sequence under the driving of the fan and is then discharged from the tail part of the fan section;
the fresh air processor is used for controlling the air humidity so that the air humidity meets the experimental requirements;
a sensible heat treatment system for adjusting the air temperature is arranged in the test chamber and comprises a heat pump unit, a water supply pipe, a water return pipe and a radiation coil pipe; the heat pump unit can provide hot water or cold water, enters the coil pipe through the water supply pipe and returns to the heat pump unit through the water return pipe; after the air passing through the fresh air processor is subjected to sufficient heat exchange with the radiation coil pipe, the air enters the test cabin, so that the temperature in the test cabin meets the requirement;
a wind speed probe is arranged in the test cabin and used for measuring the wind speed in the test cabin and adjusting the rotating speed of the fan according to the wind speed so that the wind speed meets the requirement; the bottom of the test chamber is provided with a first electric turntable, a test model is arranged on the first electric turntable, and the first electric turntable can drive the test model to rotate, so that the wind direction acting on the test model meets the requirement;
the top of the test chamber is provided with an electric turntable II, an electric slide rail is arranged below the electric turntable II, an expansion link is arranged on the electric slide rail, and the bottom end of the expansion link is provided with a short-arc xenon lamp; the electric sliding rail is matched with the telescopic rod to stretch and retract so as to simulate the rising and falling of the sun east, a solar radiation intensity sensor is arranged in the test chamber to measure the solar radiation intensity in the chamber, and accordingly, the radiation intensity of the short-arc xenon lamp is controlled in a linkage manner, so that the radiation intensity of the short-arc xenon lamp meets the requirement.
2. The artificial climate environment comprehensive simulation system according to claim 1,
the fresh air processor comprises a liquid distribution pipe, a salt solution transmission and distribution system, a liquid tank, a liquid storage tank, a regenerator, a first solution pump and a second solution pump;
one end of the liquid storage tank is provided with a solution pump I which is communicated with the liquid distribution pipe through a saline solution transmission and distribution system; the liquid distribution pipe uniformly sprays the salt solution into the air to be fully mixed with the air, and the salt solution absorbs the moisture in the air or releases the moisture to the air by controlling the concentration of the salt solution, so that the humidity of the air meets the requirement, and the salt solution is gathered in the liquid tank and flows back to the liquid storage tank;
the other end of the liquid storage tank is provided with a solution pump II which is communicated with a regenerator, and the regenerator is used for changing the concentration of the salt solution; the second solution pump is used for conveying the salt solution in the storage tank to the regenerator; the regenerated salt solution in the regenerator can flow into the reservoir.
3. The artificial climate environment comprehensive simulation system according to claim 2,
the fresh air processor also comprises a heat exchanger and an auxiliary external heat pump unit;
the heat exchanger is arranged between the first solution pump and the salt solution transmission and distribution system and is connected with an auxiliary external heat pump unit;
the auxiliary external heat pump unit exchanges heat with the saline solution by providing cold water or hot water into the heat exchanger, and changes the temperature of the saline solution, thereby changing the dehumidification or humidification effect of the saline solution.
4. The artificial climate environment comprehensive simulation system according to claim 2,
a temperature and humidity sensor is arranged in the test chamber and used for measuring the actual humidity in the test chamber and controlling the fresh air processor to adjust the air humidity according to the actual humidity.
5. The artificial climate environment comprehensive simulation system according to claim 2,
the salt solution in the fresh air processor is fully mixed with high-temperature air to absorb heat in the air, and the air temperature is preliminarily regulated and controlled;
the temperature of chilled water in the heat pump unit is controlled to be 16-18 ℃.
6. The artificial climate environment comprehensive simulation system according to claim 2,
the salt solution in the fresh air processor is fully mixed with low-temperature air, so that the temperature of the air is increased, and the temperature of the air is preliminarily regulated and controlled;
the temperature of hot water in the heat pump unit is 25-35 ℃.
7. The artificial climate environment comprehensive simulation system according to claim 2,
a humidity sensor is arranged at the inlet of the gas collection section and used for measuring the air humidity H2According to the humidity H of the air2And the required humidity range of the test [ H0，H1]The relation between the air inlet and the air outlet controls the working mode of the fresh air processor;
8. the artificial climate environment integration simulation system according to claim 3,
a humidity sensor is arranged at the inlet of the gas collection section and used for measuring the air humidity H2According to the humidity H of the air2And the required humidity range of the test [ H0，H1]The relation between the air inlet and the air outlet controls the working mode of the fresh air processor;
a humidity sensor is arranged in the test chamber and used for measuring the air humidity H3According to the humidity H of the air3And the required humidity range of the test [ H0，H1]The relation between the first solution pump and the second solution pump controls the flow of the salt solution of the first solution pump, and changes the dehumidifying or humidifying capacity of the fresh air processor.
9. The artificial climate environment comprehensive simulation system according to claim 1,
a temperature sensor is arranged in an air channel at the joint of the fresh air processor and the test cabin and used for measuring the initial temperature T of the air entering the test cabin2And according to the initial temperature T2With a desired temperature range [ T0，T1]The relation between the sensible heat treatment system and the sensible heat treatment system, and the working mode of the sensible heat treatment system;
a temperature sensor is arranged in the test chamber and is used for measuring the initial temperature T of the air entering the test chamber3And according to the initial temperature T3With a desired temperature range [ T0，T1]The valve opening of the heat pump unit of the sensible heat treatment system is controlled according to the relationship between the sensible heat treatment system and the sensible heat treatment system.
10. The artificial climate environment comprehensive simulation system according to claim 1,
the artificial climate environment system also comprises a control cabinet;
a temperature and humidity control panel is arranged on the control cabinet and used for setting a temperature and humidity set value and displaying an actual temperature and humidity value;
the control cabinet is also provided with a solar radiation intensity control panel for setting a radiation intensity set value and displaying an actual radiation intensity value;
the control cabinet is also provided with a slide rail control panel for setting a slide rail coordinate set value and a telescopic rod length set value;
the control cabinet is also provided with a wind speed control panel for setting a wind speed set value and displaying a wind speed actual value, a motor frequency value and a current value; the wind speed control panel is also provided with a manual wind speed adjusting button, a starting button and a stopping button;
and the control cabinet is also provided with an electric turntable control panel for controlling the rotation angles of the first electric turntable and the second electric turntable.
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| CN115394174A (en) * | 2022-09-01 | 2022-11-25 | 浙江大学 | Method and system for building indoor and outdoor hot and humid environments of reduced-scale building model |
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