CN110681418A - Artificial climate simulation test box - Google Patents

Artificial climate simulation test box Download PDF

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Publication number
CN110681418A
CN110681418A CN201911027086.6A CN201911027086A CN110681418A CN 110681418 A CN110681418 A CN 110681418A CN 201911027086 A CN201911027086 A CN 201911027086A CN 110681418 A CN110681418 A CN 110681418A
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China
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temperature
gas
humidity
programmable
controller
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CN201911027086.6A
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Chinese (zh)
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CN110681418B (en
Inventor
邵华
冯红玲
王欣
邵喆
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L1/00—Enclosures; Chambers
    • B01L1/02—Air-pressure chambers; Air-locks therefor
    • B01L1/025—Environmental chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/10—Means to control humidity and/or other gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/18—Means for temperature control
    • B01L2300/1838—Means for temperature control using fluid heat transfer medium
    • B01L2300/185—Means for temperature control using fluid heat transfer medium using a liquid as fluid

Abstract

The invention discloses a simulated climate test box, which comprises an environmental gas preparation and humidity control unit and an environmental simulation unit, and can regulate and control the conditions of spectral distribution, illuminance, irradiance, air temperature, humidity, wind power, underground water level buried depth, soil temperature and the like in a simulated test box body, thereby realizing indoor artificial simulation of natural environment. The external gas generation chamber is matched with the fin cold and heat source medium gas temperature control module to realize temperature and humidity regulation, so that the phenomena of frequent opening and closing and sequential opening and closing of electric heating, electric refrigeration and dehumidification equipment are avoided, the adverse effects of residual heat and residual cold reserved after the equipment is powered off on temperature and humidity control in the simulation test box are eliminated, and high precision and low fluctuation of temperature and humidity regulation in the simulation test box are ensured; the interference of the air blowing equipment of the traditional artificial climate simulation box on the aerodynamic conditions in the simulation test box body is avoided, and the study on the univariate and the combined variable of the aerodynamic conditions can be realized.

Description

Artificial climate simulation test box
Technical Field
The invention relates to a simulated climate simulation device, in particular to a simulated climate simulation test box.
Background
The artificial climate simulation test box is high-precision cold and hot variable temperature equipment with the functions of illumination, wind control and humidity control, has important significance for researching light energy conversion, agriculture and forestry crop growth and development, tissue and microorganism culture, biological behavior, water-salt migration rule, water circulation rule, industrial product durability and the like in the nature in a laboratory, and is widely suitable for production and scientific research design departments of agriculture, forestry, environmental science, soil science, hydrology, civil engineering, medicine, bioengineering, livestock raising, aquatic products, industrial product design and manufacture and the like.
The existing artificial climate simulation test box mostly adopts a simple light source when simulating the climate, and factors such as spectral distribution, illuminance, irradiance and the like are not considered in the control of illumination conditions, so that the factors cannot be subjected to single variable and combined variable research. In addition, the light source of part artificial climate simulation test box also has the function of air temperature control, so that the research of illumination conditions and the research of air temperature conditions generate mutual interference.
The air humidity and the air temperature have a functional relationship, the regulation and control of the humidity are closely related to the regulation and control of the air temperature, and the high accuracy, the low volatility and the high stability of the regulation and control of the air temperature are required firstly to realize the accurate regulation and control and the stable maintenance of the humidity.
Current artificial climate analogue test case is to the gas temperature, when humidity simulates, the part adopts heating device, refrigerating plant, humidification device, dehumidification device directly sets up in the analogue test incasement, but heating device, refrigerating plant, humidification device, dehumidification device can produce frequent opening and close because of the triggering of temperature deviation threshold value and humidity deviation threshold value, can preserve the waste heat after the heating device outage simultaneously, can preserve the residual cooling after refrigerating plant and the dehumidification device outage, the temperature and the humidity control in the analogue test incasement of waste heat or residual cooling of preserving all can produce harmful effects, cause the unstability and the high fluctuation of temperature and humidity regulation and control in the analogue test incasement.
When the existing artificial climate simulation test box simulates the air temperature and the humidity, a technical route of firstly preparing gas with specified air temperature and humidity in a specific container outside the simulation test box and then enabling the air temperature and the humidity in the simulation test box to be uniformly distributed through the air blast turbulence of a high-power fan in the simulation test box is partially adopted.
The existing artificial climate simulation test box only considers the temperature condition when simulating the temperature, but does not consider the surface temperature, the deep temperature and the soil temperature gradient condition of the underlying surface soil, and the conditions can not be studied with single variable and combined variable.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an indoor artificial climate simulation test device. The temperature control is realized by a temperature control module adopting a full-time servo fluid cold and heat source medium technology, so that the accurate humidity control is guaranteed, the phenomena of frequent opening and closing and sequential opening and closing of electric heating, electric refrigeration and dehumidification equipment caused by triggering of temperature and humidity deviation thresholds are avoided, the adverse effects of residual heat and residual cold remained after the electric heating, electric refrigeration and dehumidification equipment is powered off on the temperature and humidity control in the simulation test box are eliminated, and the high accuracy and low fluctuation of the temperature and humidity control in the simulation test box are ensured; the technical route of ensuring the uniformity of temperature and humidity distribution by using high-power fan blast turbulence adopted by part of traditional constant temperature and humidity boxes and artificial climate simulation boxes is different, and the mode of additionally installing fins is adopted, so that the exchange stroke, the exchange surface area and the exchange efficiency of cold and heat are increased, the effect of a gas streamline in a smooth test box is also played, the control strength for regulating and controlling the temperature is improved, the uniformity degree of the temperature and humidity distribution is enhanced, and the accurate regulation and control of the temperature and humidity under the weak wind condition and the high stability and high uniformity of the distribution can be realized.
In order to achieve the purpose, the invention adopts the technical scheme that: a artificial climate simulation test box is characterized in that: the device comprises an environmental gas preparation and humidity control unit and an environmental simulation unit, wherein the environmental gas preparation and humidity control unit is communicated with the environmental simulation unit and is used for conveying gas which is prepared in the environmental gas preparation and humidity control unit and meets preset conditions into the environmental simulation unit;
the environment gas preparation and humidity control unit comprises a gas generation chamber and a gas generation chamber gas temperature and humidity adjusting device, wherein the gas generation chamber gas temperature and humidity adjusting device is arranged in the gas generation chamber and is used for adjusting the temperature of gas entering the gas generation chamber in a refrigerating or heating mode and adjusting the humidity of the gas entering the gas generation chamber in a dehumidifying or humidifying mode;
the gas generating chamber comprises a first gas inlet, a second gas inlet and a gas outlet, the first gas inlet and the second gas inlet are arranged on the side wall of the gas generating chamber, the first gas inlet is communicated with the environment simulation unit and is used for guiding gas in the environment simulation unit into the gas generating chamber, the second gas inlet is communicated with outside air and is used for sucking the outside air into the gas generating chamber, and the gas outlet is communicated with the environment simulation unit;
the environment simulation unit comprises a simulation test box body and an auxiliary structure module, a sunlight simulation module, a wind power control module, a gas temperature control module, a soil pillar pipe temperature control module and a water supply module, wherein the sunlight simulation module is arranged in the simulation test box body and the auxiliary structure module and used for generating simulation illumination, the wind power control module is arranged in the simulation test box body and the auxiliary structure module and used for controlling aerodynamic conditions in the environment simulation unit, the gas temperature control module is arranged in the simulation test box body and the auxiliary structure module and used for controlling the gas temperature conditions in the environment simulation unit, and the soil pillar pipe temperature control module and the water supply module are arranged in the simulation test box body and the auxiliary structure module and used for controlling the surface temperature, the bottom temperature and the water supply of soil.
The artificial climate simulation test box is characterized in that: the simulation test box and the auxiliary structure module comprise a simulation test box body, an equipment carrying platform and a soil column pipe, the simulation test box body is of a hemispherical cavity structure and comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected in a sealing mode, a rubber sealing gasket is arranged between the upper shell and the lower shell, the simulation test box body is arranged on the upper portion of the equipment carrying platform, the soil column pipe is vertically arranged, and the upper end of the soil column pipe penetrates through the bottom of the lower shell and is communicated with the inside of the simulation test box body.
The artificial climate simulation test box is characterized in that: the sunlight simulation module comprises a spectrum continuous adjustable light source, a programmable light source controller, an optical filter, a rectification heat insulation lampshade, an air-cooling heat dissipation device, a visible light illuminometer and a spectrum radiometer, wherein the upper part of the spectrum continuous adjustable light source is contacted with the bottom of the air-cooling heat dissipation device and is used for transferring heat generated by the spectrum continuous adjustable light source during working to the air-cooling heat dissipation device, the air-cooling heat dissipation device is fixedly arranged at the central position of the top of the upper shell and is used for transferring the spectrum continuous adjustable light source to the outside of the simulation test box body, the optical filter is arranged below the spectrum continuous adjustable light source and is used for filtering ultraviolet short-wave light emitted by the spectrum continuous adjustable light source, the rectification heat insulation lampshade is arranged below the optical filter, and the visible light illuminometer is arranged at the position close to the top end of the soil pillar tube on, the spectral radiometer is arranged at a position close to the top end of the soil pillar tube on the inner side of the lower shell, the visible light illuminometer is electrically connected with the programmable light source controller and is used for transmitting visible light illumination information detected by the visible light illuminometer to the programmable light source controller, the spectral radiometer is electrically connected with the programmable light source controller and is used for transmitting spectral radiation information detected by the spectral radiometer to the programmable light source controller, and the programmable light source controller is electrically connected with the spectral continuously adjustable light source and is used for controlling the spectral continuously adjustable light source to simulate solar illumination.
The artificial climate simulation test box is characterized in that: the wind power control module comprises an air inlet pipe, an axial flow fan, a recirculated gas regulating and controlling device, a wind speed sensor, a programmable wind power controller, a simulation test box temperature sensor and a simulation test box humidity sensor, wherein one end of the air inlet pipe penetrates through the middle part of the lower shell and then is communicated with the lower end of the recirculated gas regulating and controlling device, the upper end of the recirculated gas regulating and controlling device is communicated with an air inlet of the axial flow fan, the axial flow fan is horizontally arranged, the wind speed sensor is arranged at the position, close to the top end of a soil pillar pipe, on the inner side of the lower shell and used for detecting wind speed value information of a measuring point, the wind speed sensor is electrically connected with the programmable wind power controller and used for transmitting the detected wind speed value information to the programmable wind power controller, and the programmable wind power;
the recirculating gas regulating device comprises a first air duct, a second air duct and a second air duct air port size regulating device, the first air duct is vertically arranged, one end of the first air duct is communicated with one end of an air inlet pipe, the other end of the first air duct is communicated with an air inlet of an axial flow fan, the second air duct is horizontally arranged and is communicated with the middle part of the first air duct, the second air duct air port size regulating device is arranged between the first air duct and the second air duct and is used for regulating the size of an air port through which the second air duct is communicated with the first air duct, the simulation test box temperature sensor is arranged at a position close to the top end of the soil column pipe on the inner side of the lower shell and is used for detecting the ambient air temperature value of a measuring point, the simulation test box humidity sensor is arranged at a position close to the top end of the soil column pipe on the inner side of the lower shell and is, the simulation test box temperature sensor is electrically connected with the programmable wind power controller and is used for transmitting detected temperature value information to the programmable wind power controller, the simulation test box humidity sensor is electrically connected with the programmable wind power controller and is used for transmitting detected humidity value information to the programmable wind power controller, and the programmable wind power controller is electrically connected with the recirculation gas regulation and control device and is used for controlling the second air duct air opening size regulation device to regulate the size of the communicated air opening;
second wind channel wind gap size adjusting device includes last annular plate, lower annular plate, recirculated gas pivot opening and closing plate and opens and close board drive arrangement, go up annular plate and the equal level setting of lower annular plate, go up the annular plate setting and leave the clearance between last annular plate and the lower annular plate under and directly over the annular plate, recirculated gas pivot opening and closing plate vertical setting is between last annular plate and lower annular plate and can rotate along its vertical axis, the quantity of recirculated gas pivot opening and closing plate is a plurality of and dock in proper order and can form a closed ring shape, but closed ring shape setting is on the toroidal surface of last annular plate just the excircle of annular and last annular plate is concentric, be provided with the air vent down on the annular plate, the air vent is located can close annular outside, opening and closing plate drive arrangement fixed mounting is in the upside of last annular plate and open and close the output shaft of board drive arrangement and open and close with the recirculated gas pivot after passing last annular plate The starting and closing plate driving device and the recycling gas rotating shaft starting and closing plates are the same in number and are multiple in number, and the programmable wind power controller is electrically connected with the starting and closing plate driving device and is used for controlling the size of the second air duct air opening.
The artificial climate simulation test box is characterized in that: the wind control module also comprises an air inlet valve, a backflow gas collecting pipe, a backflow gas collecting container, a backflow pipe and a variable-frequency air compressor;
the air inlet valve is arranged on the air inlet pipe, the backflow valve is arranged on the backflow pipe, one end of the backflow gas collecting pipe is fixedly arranged at the bottom of the lower shell and communicated with the inside of the simulation test box body, the other end of the backflow gas collecting pipe is fixedly arranged on the outer wall of the backflow gas collecting container and communicated with the inside of the backflow gas collecting container, one end of the backflow pipe is fixed on the outer wall of the backflow gas collecting container and communicated with the inside of the backflow gas collecting container, the other end of the backflow pipe is communicated with the first air inlet, the air inlet of the variable frequency air compressor is communicated with the air outlet of the gas generating chamber, the air outlet of the variable frequency air compressor is communicated with the simulation test box body, the programmable wind power controller is electrically connected with the air inlet valve and used for controlling the opening and closing of the air, the programmable wind power controller is electrically connected with the backflow valve and is used for controlling the opening and closing of the backflow valve, and the programmable wind power controller is electrically connected with the variable-frequency air compressor to control the variable-frequency air compressor to work.
The artificial climate simulation test box is characterized in that: the temperature control module comprises a fin heat exchange body and a programmable heat exchange medium temperature control and conveying device, and the programmable heat exchange medium temperature control and conveying device is communicated with the fin heat exchange body and is used for conveying a heat exchange medium into the fin heat exchange body at a preset temperature and a preset flow rate for heat exchange;
the fin heat exchange body comprises a heat conduction pipe and a heat conduction fin group, the heat conduction pipe is of an unsealed annular structure and is horizontally arranged along the inner side wall of the lower portion of the upper shell, the heat conduction fin group is composed of a plurality of heat conduction fins which are vertical and are uniformly distributed along the length direction of the heat conduction pipe, the heat conduction pipe sequentially penetrates through the middle portions of the heat conduction fins and is fixedly connected with the heat conduction fins, and the simulation test box temperature sensor is electrically connected with the programmable heat exchange medium temperature control and conveying device and is used for transferring a temperature value detected by the simulation test box temperature sensor to the programmable heat exchange medium temperature control and conveying device.
The programmable heat exchange medium temperature control and conveying device comprises a heat-conducting medium thermostat, a heat-conducting medium circulating pump, a heat-conducting medium temperature regulator, a heat-conducting medium temperature sensor and a programmable fin temperature controller, wherein the heat-conducting medium circulating pump is arranged in the heat-conducting medium thermostat, an outlet of the heat-conducting medium circulating pump is communicated with one end of a heat-conducting pipe, the other end of the heat-conducting pipe is communicated with the heat-conducting medium thermostat, the heat-conducting medium temperature regulator is arranged in the heat-conducting medium thermostat and is used for regulating the temperature of the heat-conducting medium in the heat-conducting medium thermostat in a heating or refrigerating mode, the heat-conducting medium temperature sensor is arranged in the heat-conducting medium thermostat and is used for detecting the temperature value of the heat-conducting medium in the heat-conducting medium thermostat, and the programmable fin temperature controller is electrically connected with the heat-conducting medium temperature sensor, the programmable fin temperature controller is electrically connected with the heat-conducting medium temperature regulator and is used for controlling the heat-conducting medium temperature regulator to regulate the temperature of the heat-conducting medium, the programmable fin temperature controller is electrically connected with the heat-conducting medium circulating pump and is used for controlling the work of the heat-conducting medium circulating pump, and the programmable fin temperature controller is electrically connected with the simulation test box temperature sensor and is used for receiving the temperature value information transmitted by the simulation test box temperature sensor.
The artificial climate simulation test box is characterized in that: the soil column pipe temperature control and water supply module comprises a soil column pipe surface temperature control device and a soil column pipe bottom temperature control and water supply device;
the soil column tube surface temperature control device comprises a middle far infrared spot lamp, a middle far infrared spot lamp controller, an infrared thermometer and a middle far infrared radiometer, wherein the middle far infrared spot lamp is fixedly arranged at the top of the inner side of the upper shell, the infrared thermometer is arranged at the position, close to the top end of the soil column tube, of the inner side of the lower shell, the middle far infrared radiometer is arranged at the position, close to the top end of the soil column tube, of the inner side of the lower shell, the light beam of the middle far infrared spot lamp can irradiate the tube opening at the upper end of the soil column tube and can cover the whole tube opening at the upper end of the soil column tube and the middle far infrared radiometer close to the top end of the soil column tube, the infrared thermometer is electrically connected with the middle far infrared spot lamp controller and is used for transmitting the soil surface temperature value detected by the infrared thermometer to the middle far infrared spot lamp controller, the middle far infrared radiomet, the middle far infrared spotlight controller is electrically connected with the middle far infrared spotlight and is used for controlling the working state of the middle far infrared spotlight;
soil column tube bottom control by temperature change and water supply installation include mah-jong bottle, water supply line temperature control device, soil temperature sensor and earth pillar pipe heat-insulating layer, mah-jong bottle passes through the water level connecting tube and communicates with the bottom of soil column pipe and is used for the height of the intraductal secret water level of regulation and control earth pillar, water supply line temperature control device sets up on the water level connecting tube between mah-jong bottle and earth pillar pipe and is used for regulating and control the rivers temperature that gets into in the earth pillar pipe from mah-jong bottle, mah-jong bottle is last to have the scale, soil temperature sensor's quantity is a plurality of, and is a plurality of soil temperature sensor is laid at the earth pillar intraductally in proper order at interval and is used for detecting the soil temperature of each laying point, soil temperature sensor is connected with water supply line temperature control device electricity and is used for transmitting its temperature information that detects for water supply line temperature control device, earth pillar pipe heat-insulating layer wraps up on the lateral wall The ambient environment exchanges heat.
The artificial climate simulation test box is characterized in that: the bottom inboard of soil column pipe is provided with the inverted filter, still be equipped with soil moisture content sensor, soil salinity sensor in the soil column pipe, the quantity of soil moisture content sensor is a plurality of, and is a plurality of soil moisture content sensor is spaced in proper order and is laid in the soil column pipe and be used for detecting the soil moisture content that each cloth was located, the quantity of soil salinity sensor is a plurality of, and is a plurality of soil salinity sensor is spaced in proper order and is laid in the soil column pipe and be used for detecting the soil salinity content that each cloth was located.
The artificial climate simulation test box is characterized in that: the bottom of the equipment carrying platform is provided with universal rollers which have a braking function;
the starting and closing plate driving device is a servo motor;
gas generation room gas temperature humidity control device includes gaseous humiture regulation executive component, gas generation room temperature sensor, gas generation room humidity transducer, analogue test case humidity transducer, internal circulation fan and programmable temperature and humidity controller, gas generation room temperature sensor sets up in gas generation room and is used for measuring the indoor gas temperature value of gas generation, gas generation room humidity transducer sets up in gas generation room and is used for measuring the indoor gaseous humidity value of gas generation, gas generation room temperature sensor is connected with programmable temperature and humidity controller electricity and is used for transmitting its measuring temperature value for programmable temperature and humidity controller, gas generation room humidity transducer is connected with programmable temperature and humidity controller electricity and is used for transmitting its measuring humidity value for programmable temperature and humidity controller, programmable temperature and humidity controller is transmitted for temperature and humidity controller and gaseous humiture regulation executive component electricity and is used for controlling gaseous temperature and humidity The temperature regulation execution component regulates the temperature and the humidity of gas in the gas generation chamber, the programmable temperature and humidity controller is electrically connected with the internal circulation fan and is used for controlling the working state of the internal circulation fan, the programmable temperature and humidity controller is electrically connected with the temperature sensor of the simulation test box and is used for receiving the temperature information transmitted by the temperature sensor of the simulation test box, and the programmable temperature and humidity controller is electrically connected with the humidity sensor of the simulation test box and is used for receiving the humidity information transmitted by the humidity sensor of the simulation test box.
The artificial climate simulation test box is characterized in that: the simulation test box and the auxiliary structure module further comprise a condensate water recovery device, the condensate water recovery device comprises a U-shaped condensate water collecting tank, a liquid level meter, a condensate water drainage valve, a drainage pipeline, a water drainage controller and a water pump motor, the U-shaped condensate water collecting tank is arranged at the bottom of the lower shell and used for collecting condensate water generated in the simulation test box, one end of the drainage pipeline is fixedly connected with the bottom of the lower shell and communicated with the bottom of the U-shaped condensate water collecting tank, the other end of the drainage pipeline is communicated with a gas generation chamber, the condensate water drainage valve is arranged on the drainage pipeline, the liquid level meter is arranged in the U-shaped condensate water collecting tank and used for detecting the liquid level of the condensate water in the lower shell, the liquid level meter is electrically connected with the water drainage controller and used for transmitting the liquid level information of the, the drainage controller is electrically connected with the condensate drainage valve and is used for controlling the opening and closing of the condensate drainage valve, and the drainage controller is electrically connected with the water pump motor and is used for controlling the opening and closing of the water pump motor.
Compared with the prior art, the invention has the following advantages:
1. the invention is different from the technical route of 'directly realizing temperature regulation and control by electric heating and electric refrigeration in a test box and humidity regulation and control by a humidifier and a dehumidifier in the test box' adopted by part of traditional artificial climate simulation boxes, realizes temperature regulation and control by matching an external gas generation chamber with a temperature control module adopting a full-time servo fluid cold and heat source medium technology, provides guarantee for accurate humidity regulation and control, avoids the phenomena of frequent opening and closing and sequential opening and closing of electric heating, electric refrigeration and dehumidification equipment due to triggering of temperature and humidity deviation thresholds, and eliminates the adverse effect of residual heat and residual cold remained after the electric heating, electric refrigeration and dehumidification equipment is powered off on the temperature and humidity control in the simulation test box. Because the specific heat capacity of the fluid is large and the stability of the cold and heat source is good, the temperature control module of the invention adopts the circulating fluid as the cold and heat source medium and performs servo work in the whole test process, thereby ensuring the high accuracy and low fluctuation of the temperature and humidity regulation in the simulation test box.
2. The invention is different from the technical route of firstly preparing gas with specified temperature and humidity and then blowing turbulent flow by a high-power fan, so that the temperature and the humidity in the test chamber are uniformly distributed, which is adopted by part of traditional artificial climate simulation chambers. Through installing the fin additional, both increased cold and hot volume's exchange stroke, exchange surface area, exchange efficiency, played the effect of smooth-going gas streamline in the proof box again, promoted the control dynamics to temperature regulation and control, strengthened gas temperature, humidity distribution's even degree. The combined design of the fluid cold and heat source medium and the fin heat exchange body ensures that the air temperature and humidity can be accurately regulated and controlled under the condition of weak wind power and the distribution of the air temperature and humidity has high stability and high uniformity without depending on the turbulence of air blowing equipment, the requirement on the air blowing condition due to the uniformity requirement of air temperature distribution is greatly weakened, the environment simulation test under the condition of weak wind power is realized, and the reliability of test data is improved.
3. The light source with continuously adjustable spectrum is designed, so that the spectral bandwidth, spectral energy distribution, light emergent degree, radiation emergent degree and the like of illumination can be continuously adjusted, and the solar illumination, visible illumination and invisible illumination under different working conditions can be simulated.
4. According to the invention, the upper side of the earth pillar tube temperature control module adopts a medium-far infrared spotlight to heat the surface of the earth pillar, and the lower side of the earth pillar adopts a water supply pipeline water temperature control device to adjust and control the temperature of the lower side of the earth pillar, so that the earth temperature and the temperature gradient condition of the earth pillar are consistent with the preset conditions of the test.
5. The air temperature control module, the humidity control unit, the wind power control module and the sunlight simulation module are designed in a closed loop mode, and the air temperature, the humidity, the wind speed and the illumination in the simulation test box can be controlled to be consistent with the test preset more accurately.
The invention is described in further detail below with reference to the figures and examples.
Drawings
FIG. 1 is a front view of the present invention.
Fig. 2 is an enlarged sectional view taken at a in fig. 1.
Fig. 3 is a left side view of the present invention.
Fig. 4 is a block diagram showing the structure of the environment simulation unit according to the present invention.
Fig. 5 is a B prescription map of fig. 2.
Fig. 6 is a plan view of the D prescription of fig. 2.
Fig. 7 is an electrical schematic block diagram of the solar light simulation module of the present invention.
FIG. 8 is a block diagram of the structure of the programmable heat exchange medium temperature control and conveying device of the present invention.
FIG. 9 is an electrical schematic block diagram of the wind control module of the present invention.
Fig. 10 is a top view showing the installation position relationship of the components of the inner part of the simulation test box according to the present invention.
Fig. 11 is a schematic structural view of a fin heat exchanger according to the present invention.
Fig. 12 is a block diagram showing the structure of the soil pillar pipe temperature control and water supply module according to the present invention.
FIG. 13 is an electrical schematic block diagram of the earth pillar skin temperature control device of the present invention.
FIG. 14 is an electrical schematic block diagram of the air temperature control module of the present invention.
FIG. 15 is a schematic perspective view of a recycle gas regulating device according to the present invention.
Fig. 16 is a plan view of prescription C of fig. 2.
Fig. 17 is an electrical schematic block diagram of the condensate recovery apparatus of the present invention.
FIG. 18 is an electrical schematic block diagram of the gas generant chamber of the invention.
FIG. 19 is a block diagram showing the structure of the gas temperature and humidity control device of the gas generation chamber according to the present invention. Description of reference numerals:
1-ambient gas preparation and humidity control unit; 11-a gas generating chamber;
11-1 — a first inlet port; 11-2 — a second air inlet; 11-3-air outlet;
12-gas temperature and humidity adjusting device of gas generating chamber;
12-1 — a gas temperature and humidity regulation execution component; 12-2-gas generation chamber temperature sensor;
12-3 — a gas generation chamber humidity sensor; 12-4 — an internal circulation fan;
12-5-programmable temperature and humidity controller; 2-an environment simulation unit;
21, simulating a test box body and an auxiliary structure module; 21-1-simulation test box body;
21-11-upper housing; 21-12-lower shell; 21-13-rubber sealing washer;
21-2 — equipment carrying platform; 21-3-soil column pipe; 21-4-a reverse filtration layer;
21-5-soil moisture content sensor; 21-6-soil salinity sensor;
21-7-a condensate recovery unit; 21-71-U type condensate water catch bowl;
21-72-level gauge; 21-73-condensate drain valve;
21-74-water drain line; 21-75-a drain controller; 21-76-water pump motor;
22-sunlight simulation module; 22-1-a spectrally continuously tunable light source;
22-2-programmable light source controller; 22-3-optical filter;
22-4-rectifying and heat-insulating lampshade; 22-5-air cooling heat dissipation device; 22-6-visible light illuminometer;
22-7-spectroradiometer; 23-a wind control module; 23-1-inlet pipe;
23-2-axial fan; 23-3 — a recycle gas conditioning unit;
23-31-upper annular plate; 23-32-lower annular plate;
23-33-start and close board of recycle gas rotating shaft; 23-34-opening and closing plate driving device;
23-35-vents; 23-4-wind speed sensor;
23-5-programmable wind controller; 23-6-simulation test box temperature sensor;
23-7-a humidity sensor of the simulation test chamber; 23-8-reflux valve;
23-9-a return gas collection tube; 23-10-a reflux gas collection vessel;
23-11-a return conduit; 23-12-variable frequency air compressor;
23-13-intake valve; 24-gas temperature control module; 24-1-fin heat exchange body;
24-11-a heat pipe; 24-12-a set of thermally conductive fins;
24-2-programmable heat exchange medium temperature control and conveying device; 24-21-heat conducting medium thermostat;
24-22-heat-conducting medium circulating pump; 24-23-heat-conducting medium temperature regulator;
24-heat transfer medium temperature sensor; 24-25-programmable fin temperature controller;
25-earth pillar tube temperature control and water supply module; 25-1-earth pillar tube surface temperature control device;
25-11-middle and far infrared spot light; 25-12-controller of middle and far infrared spotlight;
25-13-infrared thermometer; 25-14-middle and far infrared radiation meter;
25-2-temperature control and water supply device for bottom layer of earth pillar tube; 25-21-mahalanobis bottle;
25-22-water temperature control device of water supply pipeline; 25-23-soil temperature sensor;
25-24-earth pillar pipe heat insulation layer.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 4, the present embodiment provides a simulated climate test chamber, which includes an ambient gas preparation and humidity control unit 1 and an ambient simulation unit 2, wherein the ambient gas preparation and humidity control unit 1 is communicated with the ambient simulation unit 2 and is configured to deliver gas meeting a preset condition, which is prepared in the ambient gas preparation and humidity control unit 1, into the ambient simulation unit 2; the ambient gas preparation and humidity control unit 1 comprises a gas generation chamber 11 and a gas generation chamber gas temperature and humidity adjusting device 12, wherein the gas generation chamber gas temperature and humidity adjusting device 12 is arranged in the gas generation chamber 11 and is used for adjusting the temperature of gas entering the gas generation chamber 11 in a refrigerating or heating mode and adjusting the humidity of the gas entering the gas generation chamber 11 in a dehumidifying or humidifying mode; the gas generation chamber 11 comprises a first gas inlet 11-1, a second gas inlet 11-2 and a gas outlet 11-3, the first gas inlet 11-1 and the second gas inlet 11-2 are both arranged on the side wall of the gas generation chamber 11, the first gas inlet 11-1 is communicated with the environment simulation unit 2 and is used for guiding gas in the environment simulation unit 2 into the gas generation chamber 11, the second gas inlet 11-2 is communicated with outside air and is used for sucking outside air into the gas generation chamber 11, and the gas outlet 11-3 is communicated with the environment simulation unit 2; the environment simulation unit 2 comprises a simulation test box body and auxiliary structure module 21, a sunlight simulation module 22, a wind power control module 23, an air temperature control module 24 and a soil column tube temperature control and water supply module 25, the sunlight simulation module 22 is arranged in the simulation test box body and the auxiliary structure module 21 and is used for generating simulation illumination, the wind control module 23 is disposed in the simulation test box and the auxiliary structure module 21 and is used to control the aerodynamic conditions in the environment simulation unit 2, the air temperature control module 24 is arranged in the simulation test box body and the auxiliary structure module 21 and is used for controlling the air temperature condition in the environment simulation unit 2, the soil column pipe temperature control and water supply module 25 is arranged in and under the simulation test box and the auxiliary structure module 21 and is used for controlling the surface temperature and the bottom temperature of soil and supplying water.
The artificial climate simulation test box disclosed in this embodiment, it is provided with independent ambient gas preparation and humidity control unit 1, ambient gas preparation and humidity control unit 1 can prepare the gas of predetermineeing the temperature and humidity condition and can send the gas that reaches predetermineeing the temperature and humidity condition into in environmental simulation unit 2, will directly heat the gas temperature, refrigeration, the temperature adjusting device and the environmental simulation unit 2 of humidification and dehumidification separately set up, adjust the humiture of gas in environmental simulation unit 2 through indirect mode, guarantee the control and the regulation demand of gas temperature humidity in environmental simulation unit 2, avoided directly setting up temperature and humidity adjusting device in environmental simulation unit 2 content easily arouse the low precision and the high fluctuation of the regulation and control of gas temperature and humidity in environmental simulation unit 2. Meanwhile, the gas to be corrected, of which the temperature and humidity do not reach the standard, in the environment simulation unit 2 can be led out from the environment simulation unit 2 and led into the environment gas preparation and humidity control unit 1, the temperature and humidity of the gas which does not reach the standard are adjusted, and the existing temperature and humidity of the gas which does not reach the standard and is led out from the environment simulation unit 2 are very close to the temperature and humidity required by the test, so that the energy consumption can be effectively reduced by leading the gas which does not reach the standard into the environment gas preparation and humidity control unit 1 for reutilization.
As shown in fig. 2, 18 and 19, the gas temperature and humidity adjusting device 12 of the gas generation chamber includes a gas temperature and humidity adjusting executing component 12-1, a gas generation chamber temperature sensor 12-2, a gas generation chamber humidity sensor 12-3, an internal circulation fan 12-4 and a programmable temperature and humidity controller 12-5, the gas generation chamber temperature sensor 12-2 is disposed in the gas generation chamber 11 and is used for measuring a gas temperature value in the gas generation chamber 11, the gas generation chamber humidity sensor 12-3 is disposed in the gas generation chamber 11 and is used for measuring a humidity value of gas in the gas generation chamber 11, the gas generation chamber temperature sensor 12-2 is electrically connected with the programmable temperature and humidity controller 12-5 and is used for transmitting a temperature value measured by the gas generation chamber temperature sensor 12-2 to the programmable temperature and humidity controller 12-5, the gas generation chamber humidity sensor 12-3 is electrically connected with the programmable temperature and humidity controller 12-5 and used for transmitting a measured humidity value to the programmable temperature and humidity controller 12-5, the programmable temperature and humidity controller 12-5 is electrically connected with the internal circulating fan 12-4 and used for controlling the working state of the internal circulating fan 12-4, the programmable temperature and humidity controller 12-5 is electrically connected with the simulation test chamber temperature sensor 23-6 and used for receiving temperature information transmitted by the simulation test chamber temperature sensor 23-6, the programmable temperature and humidity controller 12-5 is electrically connected with the simulation test chamber humidity sensor 23-7 and used for receiving humidity information transmitted by the simulation test chamber humidity sensor 23-7, and the programmable temperature and humidity controller 12-5 is electrically connected with the gas temperature and humidity adjustment executing component 12-1 and used for controlling gas temperature and humidity The body temperature/humidity adjustment actuator 12-1 adjusts the temperature and humidity of the gas in the gas generation chamber 11.
The gas generating chamber gas temperature and humidity adjusting device 12 can prepare gas meeting the requirements of a simulation test on gas temperature and humidity according to preset conditions, and in an initial heat engine state, the gas generating chamber gas temperature and humidity adjusting device 12 prepares and outputs gas with preset temperature and humidity to the environment simulation unit 2; in the subsequent standby working state, the gas temperature and humidity adjusting device 12 adjusts the temperature and humidity of the gas in the gas generating chamber 11 based on the real-time temperature and humidity data in the environment simulation unit 2, so that the temperature and humidity in the environment simulation unit 2 are consistent with the temperature and humidity preset in the test. This application has avoided traditional artificial climate simulation case, and electric heating, electric refrigeration, dehumidification equipment frequently open and close, open and close the phenomenon in proper order because of temperature and humidity deviation threshold value trigger and produce, have eliminated electric heating, electric refrigeration, dehumidification equipment and have stayed after the outage waste heat, residual cooling right the harmful effects of temperature, humidity control in the analogue test case have guaranteed high accuracy, the low volatility of temperature, humidity regulation and control in the analogue test case.
The programmable temperature and humidity controller 12-5 can selectively use a programmable logic controller or a single chip microcomputer to receive temperature and humidity information, and then controls the operation of the gas temperature and humidity regulation execution part 12-1 and the internal circulating fan 12-4 through internal numerical calculation and logic operation, wherein the gas temperature and humidity regulation execution part 12-1 is a part for regulating the temperature and humidity of gas in the gas generation chamber 11 by adopting heating, refrigerating, humidifying and dehumidifying methods, and can be a part comprising a heating plate, a refrigerator, a humidifier and a dehumidifier. The internal circulation fan 12-4 in this embodiment can accelerate the gas flow in the gas generation chamber 11, so that the gas temperature and humidity of the gas at each position in the gas generation chamber 11 are uniform.
As shown in fig. 1 to 5, the simulation test box and auxiliary structure module 21 includes a simulation test box 21-1, an equipment-carrying platform 21-2 and a soil column pipe 21-3, the simulation test box body 21-1 is of a hemispherical cavity structure, the simulation test box body 21-1 comprises an upper shell 21-11 and a lower shell 21-12, the upper shell 21-11 and the lower shell 21-12 are detachably connected in a sealing way, a rubber sealing gasket 21-13 is arranged between the upper shell 21-11 and the lower shell 21-12, the simulation test box body 21-1 is arranged at the upper part of the equipment carrying platform 21-2, the soil column pipe 21-3 is vertically arranged, and the upper end of the soil column pipe 21-3 penetrates through the bottom of the lower shell 21-12 and is communicated with the inside of the simulation test box body 21-1.
In this embodiment, the simulation test box 21-1 is a hemispherical shell made of two layers of stainless steel, and the interlayer of the two layers of stainless steel is filled with a thermal insulation foaming material. The simulation test box body 21-1 consists of an upper shell 21-11 and a lower shell 21-12, wherein a rubber gasket tight ring 21-13 is padded between the upper shell 21-11 and the lower shell 21-12, and then the upper shell 21-11 and the lower shell 21-12 are fastened by eight hinge screws and butterfly nuts which are uniformly distributed on the circumference, so that the sealing performance is good, the assembly and disassembly are convenient, and the connection is firm. In this embodiment, the bottom of the equipment carrying platform 21-2 is further provided with a universal roller, and the universal roller is a universal roller with a braking function, so that the equipment can be conveniently transferred. The equipment carrying platform 21-2 is a load-bearing main body of the invention and is used for bearing all components of the equipment, and the equipment carrying platform 21-2 is provided with supporting legs.
The programmable temperature and humidity controller 12-5, the programmable light source controller 22-2, the programmable fin temperature controller 24-25, the programmable wind power controller 23-5 and the mid-far infrared spotlight controller 25-12 are arranged on the equipment carrying platform 21-2 at a distance of 1.4m from the ground. In order to prevent the test equipment from side turning over, the invention arranges stay wire fastening rings on 4 support legs, and adopts prestressed steel cables to fix the equipment and the ground in a diagonal pulling way. In order to enhance the stability of the support, an X-shaped stabilizing support is arranged between every 2 adjacent support legs. In order to facilitate the transfer of equipment, 4 universal rollers with braking function are arranged at the bottom end of the bracket.
As shown in fig. 2, 6, 7 and 10, the sunlight simulation module 22 comprises a spectrum continuous adjustable light source 22-1, a programmable light source controller 22-2, a filter 22-3, a rectifying and insulating lampshade 22-4, an air-cooled heat sink 22-5, a visible light illuminometer 22-6 and a spectrum radiometer 22-7, wherein the upper part of the spectrum continuous adjustable light source 22-1 is in contact with the bottom of the air-cooled heat sink 22-5 and is used for transferring heat generated by the spectrum continuous adjustable light source 22-1 during operation to the air-cooled heat sink 22-5, the air-cooled heat sink 22-5 is fixedly arranged at the top center of the upper shell 21-11 and is used for discharging heat transferred by the spectrum continuous adjustable light source 22-1 to the outside of the simulation test box 21-1, the optical filter 22-3 is arranged below the spectrum continuous adjustable light source 22-1 and used for filtering short-wave ultraviolet light emitted by the spectrum continuous adjustable light source 22-1, the rectifying and temperature-isolating lampshade 22-4 is arranged below the optical filter 22-3, the visible light illuminometer 22-6 is arranged at the position, close to the top end of the soil pillar tube 21-3, on the inner side of the lower shell 21-12, the spectrum radiometer 22-7 is arranged at the position, close to the top end of the soil pillar tube 21-3, on the inner side of the lower shell 21-12, the visible light illuminometer 22-6 is electrically connected with the programmable light source controller 22-2 and used for transmitting visible light illuminance information detected by the visible light illuminometer to the programmable light source controller 22-2, and the spectrum radiometer 22-7 is electrically connected with the programmable light source controller 22-2 and used for transmitting spectrum radiation information detected by the spectrum illuminometer 22-2 to the programmable The programmable light source controller 22-2 is electrically connected with the spectrum continuous adjustable light source 22-1 and is used for controlling the spectrum continuous adjustable light source 22-1 to simulate the sun illumination.
In the embodiment, the illumination condition consistent with the preset test can be obtained through the spectrum continuous adjustable light source 22-1, the programmable light source controller 22-2, the optical filter 22-3, the rectifying heat-insulating lampshade 22-4, the air-cooled heat dissipation device 22-5, the visible light illuminometer 22-6 and the spectrum radiometer 22-7. The back of the spectrum continuous adjustable light source 22-1 is connected with the air-cooled heat dissipation device 22-5 at the center of the top of the simulation test box body 21-1, so that when the spectrum continuous adjustable light source 22-1 works, heat generated by the spectrum continuous adjustable light source is rapidly discharged out of the environment simulation unit 2 through the air-cooled heat dissipation device 22-5, and the influence of the heat generated when the spectrum continuous adjustable light source 22-1 works on the temperature and humidity of the gas in the environment simulation unit 2 is reduced. An optical filter 22-3 for filtering short wave ultraviolet rays and a rectifying heat-insulating lampshade 22-4 are arranged below the spectrum continuous adjustable light source 22-1. The spectral bandwidth, spectral energy distribution, light emergent degree and radiance of the spectrum continuous adjustable light source 22-1 can be continuously adjusted through the programmable light source controller 22-2, and the spectrum continuous adjustable light source is very suitable for serving as an indoor artificial light source and is used for simulating solar illumination, visible illumination and invisible illumination under different working conditions. A visible light illuminometer 22-6 and a spectral radiometer 22-7 are arranged at the position, close to the top end of the soil pillar tube 21-3, on the inner side of the lower shell 21-12, the average value of the visible light illuminometer and the spectral radiometer is taken as the actually measured illuminance, irradiance, radiant flux, radiant intensity and radiant brightness, data interaction with the programmable light source controller 22-2 is achieved, and the spectral bandwidth, spectral energy distribution, light emergent degree, radiant emergent degree, illuminance, irradiance, radiant flux, radiant intensity and radiant brightness in the simulation test box body 21-1 are guaranteed to be consistent with the preset test.
As shown in fig. 2, 9 and 10, the wind control module 23 includes an air inlet pipe 23-1, an axial flow fan 23-2, a recirculated gas regulating device 23-3, a wind speed sensor 23-4, a programmable wind power controller 23-5, a simulation test chamber temperature sensor 23-6 and a simulation test chamber humidity sensor 23-7, one end of the air inlet pipe 23-1 passes through the middle of the lower casing 21-12 and then is communicated with the lower end of the recirculated gas regulating device 23-3, the upper end of the recirculated gas regulating device 23-3 is communicated with an air inlet of the axial flow fan 23-2, the axial flow fan 23-2 is horizontally arranged, the wind speed sensor 23-4 is arranged at a position close to the top end of the soil column pipe 21-3 inside the lower casing 21-12 and is used for detecting wind speed value information of a measuring point, the wind speed sensor 23-4 is electrically connected with the programmable wind controller 23-5 and is used for transmitting detected wind speed value information to the programmable wind controller 23-5, and the programmable wind controller 23-5 is electrically connected with the axial flow fan 23-2 and is used for controlling the start, stop and rotating speed of the axial flow fan 23-2; the recirculation gas regulation and control device 23-3 comprises a first air duct, a second air duct and a second air duct air port size regulation device, the first air duct is vertically arranged, one end of the first air duct is communicated with one end of an air inlet pipe 23-1, the other end of the first air duct is communicated with an air inlet of an axial flow fan 23-2, the second air duct is horizontally arranged and communicated with the middle part of the first air duct, the second air duct air port size regulation device is arranged between the first air duct and the second air duct and used for regulating the size of the second air duct and the first air duct communicated air port, the simulation test box temperature sensor 23-6 is arranged at the position, close to the top end of the soil column pipe 21-3, of the inner side of the lower shell 21-12 and used for detecting the environmental air temperature value of a measuring point, the simulation test box humidity sensor 23-7 is arranged at the position, close to the top end of the soil column pipe 21-3, of the inner The temperature sensor 23-6 of the simulation test box is electrically connected with the programmable wind power controller 23-5 and is used for transmitting the information of the detected temperature value to the programmable wind power controller 23-5, the humidity sensor 23-7 of the simulation test box is electrically connected with the programmable wind power controller 23-5 and is used for transmitting the information of the detected humidity value to the programmable wind power controller 23-5, and the programmable wind power controller 23-5 is electrically connected with the recirculated gas regulating device 23-3 and is used for controlling the second air duct air opening size regulating device to regulate the size of the communicated air opening; the air control module 23 is used for blowing prepared air with preset temperature and humidity into the simulation test box body 21-1 through an air inlet pipe 23-11 on the basis of finished air with preset temperature and humidity generated in the air generating chamber 11. The axial flow fan 23-12 provides power for gas circulation in the simulation test box body 21-1, meanwhile, the wind speed of the specified wind power condition is guaranteed, and blades of the axial flow fan 23-12 are horizontally arranged.
As shown in fig. 2 and 15, the second air duct opening size adjusting device includes upper annular plates 23-31, lower annular plates 23-32, recirculation air rotating shaft opening and closing plates 23-33 and opening and closing plate driving devices 23-34, the upper annular plates 23-31 and the lower annular plates 23-32 are both horizontally arranged, the upper annular plates 23-31 are arranged right above the lower annular plates 23-32, gaps are left between the upper annular plates 23-31 and the lower annular plates 23-32, the recirculation air rotating shaft opening and closing plates 23-33 are vertically arranged between the upper annular plates 23-31 and the lower annular plates 23-32 and can rotate along vertical central axes thereof, the number of the recirculation air rotating shaft opening and closing plates 23-33 is multiple and are sequentially butted to form a closed ring, the closed ring is arranged on the ring surface of the upper annular plates 23-31, and the ring and the upper annular plates 23-31 31, the lower annular plates 23-32 are provided with vent holes 23-35, the vent holes 23-35 are positioned on the outer side of the closable ring, the opening and closing plate driving devices 23-34 are fixedly arranged on the upper sides of the upper annular plates 23-31, output shafts of the opening and closing plate driving devices 23-34 penetrate through the upper annular plates 23-31 and then are fixedly connected with the circulating gas rotating shaft opening and closing plates 23-33, the number of the opening and closing plate driving devices 23-34 and the number of the circulating gas rotating shaft opening and closing plates 23-33 are the same and are multiple, and the programmable wind power controller 23-5 is electrically connected with the opening and closing plate driving devices 23-34 and is used for controlling the size of the second air duct air opening.
In this embodiment, the opening and closing plate driving devices 23 to 34 are servo motors.
In the process of environmental simulation, the conditions of heat loss, heat exchange between the gas in the simulation test box body 21-1 and the earth pillar, evaporation water vapor supplement and the like exist, so that the temperature and the humidity in the simulation test box body 21-1 are deviated. In order to maintain the set air temperature and humidity conditions, the air in the simulation test chamber 21-1 needs to be recirculated and ventilated at a certain ratio or at all ratios. The temperature and humidity deviation threshold of the certain proportion of the backflow ventilation is smaller than the temperature and humidity deviation threshold of the whole proportion of the backflow ventilation. When the deviation of the temperature and the humidity in the simulation test box body 21-1 reaches a certain proportion backflow ventilation threshold value and does not reach the total proportion backflow ventilation threshold value, the recirculation gas rotating shaft opening and closing plate 23-33 keeps an opening state, meanwhile, the backflow valve 23-32 and the air inlet valve 23-31 are synchronously opened and respectively perform exhaust and air inlet work, a part of old gas with the temperature and the humidity which do not reach the standard in the simulation test box body 21-1 is exhausted, the other part of old gas is mixed with newly supplemented qualified gas with the preset temperature and the humidity through the recirculation gas rotating shaft opening and closing plate 23-33 and then continuously performs the circulation work after being blown out through the axial flow fan 23-2. When the temperature and humidity deviation in the simulation test box body 21-1 reaches a certain proportion backflow ventilation threshold value and further reaches a full proportion backflow ventilation threshold value, the opening and closing plates 23-33 of the recirculation gas rotating shaft are closed under the driving of the opening and closing plate driving devices 23-34. At this time, the existing gas in the simulation test box body 21-1 does not participate in the gas circulation in the simulation test box body 21-1 any more, is not mixed with the newly supplemented qualified gas reaching the preset set temperature and humidity any more, can only be discharged through the return gas collecting pipe 23-37, is sent into the gas generating chamber 11 for reprocessing, and is sent back into the simulation test box body 21-1 again after the temperature and humidity reach the standard.
The start-stop plate 23-33 of the recycle gas rotating shaft is made of ABS engineering plastics. The main functions are to reduce the turbulence and the vortex generated in the simulation test chamber body and to shunt the gas flowing into the gas inlet pipes 23-11 and the return gas collecting pipes 23-37. The lower annular plate 23-32 is provided with vent holes 23-35 arranged in an equidistant surrounding manner, and mainly considers that when the simulation test box body 21-1 reaches a full-proportion backflow ventilation threshold value, the recirculation gas rotating shaft opening and closing plate 23-33 is closed, if the vent holes 23-35 are not arranged, a dead end area where gas does not flow is generated near the recirculation gas rotating shaft opening and closing plate 23-33, so that the gas overflowing condition above the surface of the soil pillar tube 21-3 is disturbed, and the test result is deviated.
As shown in fig. 2, 3, 9 and 10, the wind control module 23 further includes an intake valve 23-13, a return valve 23-8, a return gas collecting pipe 23-9, a return gas collecting container 23-10, a return pipe 23-11 and a variable frequency air compressor 23-12; the air inlet valve 23-13 is arranged on the air inlet pipe 23-1, the backflow valve 23-8 is arranged on the backflow pipe 23-11, one end of the backflow gas collecting pipe 23-9 is fixedly arranged at the bottom of the lower shell 21-12 and communicated with the interior of the simulation test box body 21-1, the other end of the backflow gas collecting pipe 23-9 is fixedly arranged on the outer wall of the backflow gas collecting container 23-10 and communicated with the interior of the backflow gas collecting container 23-10, one end of the backflow pipe 23-11 is fixed on the outer wall of the backflow gas collecting container 23-10 and communicated with the interior of the backflow gas collecting container 23-10, and the other end of the backflow pipe 23-11 is communicated with the first air inlet 11-1; the air inlet of the variable-frequency air compressor 23-12 is communicated with the air outlet 11-3 of the gas generation chamber 11, and the air outlet of the variable-frequency air compressor 23-12 is communicated with the simulation test box body 21-1; the programmable wind power controller 23-5 is electrically connected with the air inlet valve 23-13 and the return valve 23-8 and is used for controlling the opening and closing of the air inlet valve 23-13 and the return valve 23-8, the programmable wind power controller 23-5 is electrically connected with the variable frequency type air compressor 23-12 and adjusts the flow rate of the exchanged air by controlling the rotating speed of a motor of the variable frequency type air compressor 23-12 according to the deviation of air temperature and humidity in the simulation test box body 21-1.
As shown in fig. 2, fig. 8, fig. 11 and fig. 14, the gas temperature control module 24 includes a fin heat exchanger 24-1 and a programmable heat exchange medium temperature control and delivery device 24-2, where the programmable heat exchange medium temperature control and delivery device 24-2 is communicated with the fin heat exchanger 24-1 and is configured to deliver a heat exchange medium into the fin heat exchanger 24-1 at a preset temperature and a preset flow rate for heat exchange; the fin heat exchanger 24-1 comprises a heat conduction pipe 24-11 and a heat conduction fin group 24-12, the heat conduction pipe 24-11 is of an unsealed annular structure, the heat conduction pipe 24-11 is horizontally arranged along the inner side wall of the lower portion of the upper shell 21-11, the heat conduction fin group 24-12 is composed of a plurality of heat conduction fins which are vertically arranged and uniformly distributed along the length direction of the heat conduction pipe 24-11, the heat conduction pipe 24-11 sequentially penetrates through the middle portions of the heat conduction fins and is fixedly connected with the heat conduction fins, and the simulation test box temperature sensor 23-6 is electrically connected with the programmable heat exchange medium temperature control and conveying device 24-2 and is used for transmitting the temperature value detected by the simulation test box to the programmable heat exchange medium temperature control and conveying device 24-2.
The programmable heat exchange medium temperature control and conveying device 24-2 comprises a heat-conducting medium thermostat 24-21, a heat-conducting medium circulating pump 24-22, a heat-conducting medium temperature regulator 24-23, a heat-conducting medium temperature sensor 24-24 and a programmable fin temperature controller 24-25, wherein the heat-conducting medium circulating pump 24-22 is arranged in the heat-conducting medium thermostat 24-21, an outlet of the heat-conducting medium circulating pump 24-22 is communicated with one end of a heat-conducting pipe 24-11, the other end of the heat-conducting pipe 24-11 is communicated with the heat-conducting medium thermostat 24-21, the heat-conducting medium temperature regulator 24-23 is arranged in the heat-conducting medium thermostat 24-21 and is used for regulating the temperature of the heat-conducting medium in the heat-conducting medium thermostat 24-21 in a heating or refrigerating mode, the heat-conducting medium temperature sensor 24-24 is arranged in the heat-conducting medium thermostat 24-21 and used for detecting the temperature value of the heat-conducting medium in the heat-conducting medium thermostat 24-21, the programmable fin temperature controller 24-25 is electrically connected with the heat-conducting medium temperature sensor 24-24 and used for receiving the temperature value information transmitted by the heat-conducting medium temperature sensor 24-24, the programmable fin temperature controller 24-25 is electrically connected with the heat-conducting medium temperature regulator 24-23 and used for controlling the heat-conducting medium temperature regulator 24-23 to regulate the temperature of the heat-conducting medium, the programmable fin temperature controller 24-25 is electrically connected with the heat-conducting medium circulating pump 24-22 and used for controlling the work of the heat-conducting medium circulating pump 24-22, and the programmable fin temperature controller 24-25 is electrically connected with the simulation test box temperature sensor 23-6 and used for receiving the simulation test box temperature information Air temperature value information transmitted by the temperature sensor 23-6.
The humidity and the air temperature have a functional relationship, so that the humidity in the simulation test box body 21-1 is closely related to the air temperature in the simulation test box body, and the high accuracy, the low volatility and the high stability of the air temperature regulation are required firstly to realize the accurate regulation and the stable maintenance of the humidity. Because the specific heat capacity of the fluid is large and the stability of the cold and heat source is good, the circulating fluid is used as the cold and heat source medium and performs servo operation in the whole test process, so that the high accuracy and the low fluctuation of the regulation and control of the temperature and the humidity in the simulation test box body 21-1 are ensured. Meanwhile, the fin heat exchanger 24-1 in the air temperature control module 24 comprises a heat conduction pipe 24-11 and a heat conduction fin group 24-12, and the heat conduction fin group 24-12 can increase the exchange stroke, the exchange surface area and the exchange efficiency of cold and heat, improve the control strength of air temperature regulation and control and strengthen the uniformity of air temperature and humidity distribution; on the other hand, the design of the heat conduction fin group can smoothly simulate a gas flow line in the test box body 21-1, reduce noise influence of turbulence, vortex and the like on simulation processes such as evaporation and the like, and further optimize the wind power condition of the surface of the soil column tube 21-3. Due to the adoption of fluid cold and heat source media and the design of the fins, the invention can realize the accurate regulation and control of the temperature and the humidity in the simulation test box body 21-1 and the high stability and the high uniformity of the distribution thereof under the condition of weak wind without excessively depending on the turbulence of a blast device, and improve the reliability of test data.
In this embodiment, the heat pipe 24-11 is made of red copper, and the internal fluid cold and heat source medium is NaCl saline with a mass concentration of 20%. The heat conduction fins are made of red copper, the appearance of the heat conduction fins is attached to the inner surface of the simulation test box body 21-1, on one hand, the heat exchange stroke is prolonged, the heat exchange surface area is increased, the heat exchange efficiency is improved, on the other hand, the flow guiding effect of the circulating gas in the simulation test box body 21-1 is strengthened, the gas flow line is smooth, and the noise influence of turbulence, vortex and the like on simulation processes such as evaporation is reduced. The invention is different from the technical route of firstly preparing gas with specified temperature and humidity and then blowing turbulent flow by a high-power fan so as to ensure that the temperature and the humidity in the test chamber are uniformly distributed, which is adopted by the traditional constant-temperature and constant-humidity chamber and the artificial climate simulation chamber. The invention adopts the air temperature control module 24 to ensure high stability and low fluctuation of air temperature regulation and control in the simulation test box body 21-1, and adopts the fin cold-heat exchange device to ensure the uniformity degree of air temperature distribution, thereby enhancing the efficiency of air temperature regulation and control, greatly weakening the requirement on air blast turbulence condition due to the requirement on air temperature distribution uniformity, and realizing the implementation of simulation tests such as evaporation under the condition of weak wind.
The air temperature control module 24 simulates air temperature according to a preset environment, and adjusts the temperature of the fluid cold and heat source medium in the heat conduction pipe 24-11 by adopting a learning algorithm according to the data of the simulation test box temperature sensor 23-6 in the simulation test box body 21-1, so as to maintain the air temperature in the simulation test box body 21-1 consistent with the preset air temperature in the test; when the temperature and humidity deviation in the simulation test box 21-1 reaches the temperature and humidity deviation threshold value of the reflux ventilation in a certain proportion, the gas generation chamber gas temperature and humidity adjusting device 12 can be involved in the temperature and humidity correction of the simulation test box 21-1. The air temperature control module 24 is responsible for maintaining and fine-adjusting the air temperature in the simulation test box body 21-1, and the air temperature and humidity adjusting device 12 in the gas generation chamber is responsible for quickly adjusting the air temperature in the simulation test box body 21-1.
In the embodiment, the temperature sensor 23-6, the humidity sensor 23-7 and the wind speed sensor 23-4 of the simulation test box are all arranged at the top end position of the inner side of the lower shell 21-12 close to the soil column tube 21-3, and the arrangement height is equal to the top surface height of the soil column tube 21-3, so that the influence of the arrangement of the sensors on the fluid environment above the soil surface is eliminated, and the actual temperature, humidity and wind speed at the top surface of the soil column tube are accurately measured.
In this embodiment, the number of the soil column tubes 21-3 is four, each soil column tube 21-3 is provided with a simulation test box temperature sensor 23-6, a simulation test box humidity sensor 23-7 and a wind speed sensor 23-4, an average value of the same sensors at each similar measuring point in the simulation test box 21-1 is taken as an actual measurement value, and the gas temperature control module 24 and the wind control module 23 are both connected with the gas generation chamber gas temperature and humidity adjusting device 12 of the gas generation chamber 11 for data interaction so as to control the ambient gas preparation and humidity control unit 1 to prepare the gas meeting the preset requirements in the simulation test box 21-1.
The wind control module 23 steplessly adjusts the rotating speed of the axial flow fan 23-2 according to the preset wind conditions and based on the real-time wind speed sensor 23-4 data in the simulation test box 21-1, so that the wind conditions on the surface layer of the soil column pipe 21-3 in the simulation test box 21-1 are consistent with the wind conditions set in the test.
As shown in fig. 2, 3, 6, 12 and 13, the soil column tube temperature control and water supply module 25 comprises a soil column tube surface temperature control device 25-1 and a soil column tube bottom temperature control and water supply device 25-2, which are used for controlling the surface temperature and the bottom temperature of the soil column tube 21-3 and thus creating a ground temperature gradient in the laboratory; the surface temperature control device 25-1 of the soil pillar tube comprises a middle far infrared spot lamp 25-11, a middle far infrared spot lamp controller 25-12, an infrared thermometer 25-13 and a middle far infrared radiometer 25-14, the middle far infrared spot lamp 25-11 is fixedly arranged at the top of the inner side of the upper shell 21-11, the infrared thermometer 25-13 is arranged at the position close to the top end of the soil pillar tube 21-3 at the inner side of the lower shell 21-12, the middle far infrared radiometer 25-14 is arranged at the position close to the top end of the soil pillar tube 21-3 at the inner side of the lower shell 21-12, the light beam of the middle far infrared spot lamp 25-11 can irradiate the tube mouth at the upper end of the soil pillar tube 21-3 and can cover the whole tube mouth of the soil pillar tube 21-3 and the middle far infrared radiometer 25-14 close to the top end of the soil pillar tube 21-3, the infrared thermometer 25-13 is electrically connected with the middle and far infrared spotlight controller 25-12 and is used for transmitting the detected soil surface temperature value to the middle and far infrared spotlight controller 25-12, the middle and far infrared radiometer 25-14 is electrically connected with the middle and far infrared spotlight controller 25-12 and is used for transmitting the detected infrared radiation value to the middle and far infrared spotlight controller 25-12, and the middle and far infrared spotlight controller 25-12 is electrically connected with the middle and far infrared spotlight controller 25-11 and is used for controlling the working state of the middle and far infrared spotlight 25-11.
As water vapor molecules in the air have larger absorption rate to infrared rays with specific wavelength, further interference to environmental simulation such as evaporation and the like is caused, in order to ensure that the water vapor molecules in the simulation test box body 21-1 are not interfered by the infrared spot lamp for heating the soil surface temperature of the soil column, the invention selects the middle and far infrared spot lamps 25-11 with specific wavelength in the atmospheric window to avoid a stronger water vapor absorption band. The surface temperature control of the soil column tube 21-3 is realized by irradiating the surface of the soil column through a middle and far infrared spot light 25-11 arranged at the top of a simulation test box body 21-1, the irradiation range is equivalent to the soil column surface range, and the power is adjusted through a middle and far infrared spot light controller 25-12 according to the data of an infrared thermometer 25-13 and a middle and far infrared radiometer 25-14 arranged at the position of the soil column tube mouth, so that the temperature of the soil surface layer in the environment simulation unit 2 is consistent with the temperature of the soil surface layer set by the test or the irradiation energy received by the soil surface layer in the environment simulation unit 2 is consistent with the irradiation energy set by the test. The temperature control of the bottom of the soil column is realized by a soil temperature sensor 25-23 at the bottom of the soil column pipe 21-3 and a water temperature control device 25-22 of a water supply pipeline. Because the water flow migration speed in the simulation processes of evaporation and the like is extremely slow and is not visible to naked eyes, the water temperature in the water supply pipeline at the bottom of the soil column tube 21-3 and the soil temperature at the bottom of the soil column tube 21-3 reach a balanced state. Therefore, the invention controls the temperature of the soil at the bottom of the soil column pipe 21-3 by controlling the temperature of the water in the water supply pipeline at the bottom of the soil column pipe 21-3. The water temperature in the water supply pipeline at the bottom of the soil column pipe 21-3 is adjusted by the water supply pipeline water temperature control device 25-22 according to the data of the soil temperature sensor 25-23 at the bottom of the soil column pipe 21-3, so that the soil temperature at the bottom of the soil column pipe 21-3 is consistent with the preset temperature.
The soil column pipe bottom layer temperature control and water supply device 25-2 comprises a March's bottle 25-21, a water supply pipeline water temperature control device 25-22, a soil temperature sensor 25-23 and a soil column pipe heat insulation layer 25-24, the March's bottle 25-21 is communicated with the bottom of the soil column pipe 21-3 through a water level connecting pipeline and is used for regulating and controlling the height of the underground water level in the soil column pipe 21-3, the water supply pipeline water temperature control device 25-22 is arranged on the water level connecting pipeline between the March's bottle 25-21 and the soil column pipe 21-3 and is used for regulating and controlling the water temperature of water flow entering the soil column pipe 21-3 from the March's bottle 25-21, the March's bottle 25-21 is provided with scales, the soil temperature sensors 25-23 are multiple, the plurality of soil temperature sensors 25-23 are sequentially arranged in the soil column pipe 21-3 at intervals and are used for detecting the soil temperature of each arrangement point And the soil temperature sensor 25-23 is electrically connected with the water supply pipeline water temperature control device 25-22 and is used for transmitting the detected temperature information to the water supply pipeline water temperature control device 25-22, and the soil column tube heat insulation layer 25-24 is wrapped on the side wall of the soil column tube 21-3 and is used for preventing the soil in the soil column tube 21-3 from exchanging heat with the external environment.
In the embodiment, the constancy of the underground water level is simulated by the temperature control and water supply device 25-2 at the bottom of the soil pillar tube, the constancy of the underground water level is simulated by the temperature control and water supply device 25-2, the temperature control and water supply device comprises 4 Mariotte bottles 25-21 with scales and 4 water level connecting pipelines, and after the water in the Mariotte bottles 25-21 reaches the preset temperature through the water temperature control device 25-22 of a water supply pipeline, the water enters the soil pillar tube 21-3 through the inverted filter 21-4 at the bottom end of the soil pillar tube 21. In addition to an infrared thermometer 25-13 and a soil temperature sensor 25-23, each soil column tube 21-3 of the integrated measurement and control probe is provided with a soil moisture content sensor 21-5 and a soil salinity sensor 21-6 on the side wall of the soil column tube 21-3 in order to obtain real-time moisture content, temperature and salinity information of the soil column tube 21-3 along the water and salt migration path. Soil moisture content sensor 21-5's quantity is a plurality of, and is a plurality of soil moisture content sensor 21-5 arranges in soil column pipe 21-3 at intervals in proper order and is used for detecting the soil moisture content that each cloth was located, soil salinity sensor 21-6's quantity is a plurality of, and is a plurality of soil salinity sensor 21-6 arranges in soil column pipe 21-3 at intervals in proper order and is used for detecting the soil salinity content that each cloth was located. The bottom of the soil column pipe 21-3 is provided with a reverse filtering layer 21-4 for preventing soil from blocking water supply. The side wall of the soil column tube 21-3 is wrapped by a soil column tube heat insulation layer 25-24 to prevent the influence of the laboratory environment temperature on the set soil column temperature and the gradient thereof.
As shown in fig. 2, 3, 16 and 17, the simulation test tank and auxiliary structure module 21 further includes a condensate recovery device 21-7, the condensate recovery device 21-7 includes a U-shaped condensate water collecting tank 21-71, a level gauge 21-72, a condensate water drain valve 21-73, a drain pipe 21-74, a drain controller 21-75 and a water pump motor 21-76, the U-shaped condensate water collecting tank 21-71 is disposed at the bottom of the lower case 21-12 and is used for collecting condensate water generated in the simulation test tank 21-1, one end of the drain pipe 21-74 is fixedly connected to the bottom of the lower case 21-12 and is communicated with the bottom of the U-shaped condensate water collecting tank 21-71, and the other end of the drain pipe 21-74 is communicated with the gas generation chamber 11 through the water pump motor 21-76, the condensate drain valve 21-73 is arranged on the drain pipe 21-74, the liquid level meter 21-72 is arranged in the U-shaped condensate water collecting tank 21-71 and is used for detecting the liquid level of condensate water in the lower shell 21-12, the liquid level meter 21-72 is electrically connected with the drain controller 21-75 and is used for transmitting the liquid level information of the condensate water in the lower shell 21-12 to the drain controller 21-75, the drain controller 21-75 is electrically connected with the condensate drain valve 21-73 and is used for controlling the opening and closing of the condensate drain valve 21-73, and the drain controller 21-75 is electrically connected with the water pump motor 21-76 and is used for controlling the opening and closing of the water pump motor 21-76.
In the simulation process of soil evaporation and the like, due to air temperature and air pressure, a part of water vapor in the air can be condensed, and in order to discharge the part of condensed water in time, the bottom of the simulation test box body 21-1 adopts an inverted cone inclined design and a U-shaped condensate water collecting tank 21-71. An annular U-shaped condensate water collecting tank 21-71 is arranged around the connection part of the bottom of the lower shell 21-12 and the air inlet pipe 23-11, a liquid level meter 21-72 is arranged in the U-shaped condensate water collecting tank 21-71, when the water level in the U-shaped condensate water collecting tank 21-71 reaches a water drainage threshold value, a condensate water drainage valve 21-73 is automatically opened, condensate is pumped out through the lower shell 21-12 of the simulation test box body 21-1, the U-shaped condensate water collecting tank 21-71 and a water drainage pipe 21-74 and is sent to a water supply system of the ambient gas preparation and humidity control unit 1, and the condensate is recycled after being filtered.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. A artificial climate simulation test box is characterized in that: the device comprises an environment gas preparation and humidity control unit (1) and an environment simulation unit (2), wherein the environment gas preparation and humidity control unit (1) is communicated with the environment simulation unit (2) and is used for conveying gas which is prepared in the environment gas preparation and humidity control unit (1) and meets preset conditions into the environment simulation unit (2);
the environment gas preparation and humidity control unit (1) comprises a gas generation chamber (11) and a gas generation chamber gas temperature and humidity adjusting device (12), wherein the gas generation chamber gas temperature and humidity adjusting device (12) is arranged in the gas generation chamber (11) and is used for adjusting the temperature of gas entering the gas generation chamber (11) in a refrigerating or heating mode and adjusting the humidity of the gas entering the gas generation chamber (11) in a dehumidifying or humidifying mode;
the gas generation chamber (11) comprises a first gas inlet (11-1), a second gas inlet (11-2) and a gas outlet (11-3), the first gas inlet (11-1) and the second gas inlet (11-2) are arranged on the side wall of the gas generation chamber (11), the first gas inlet (11-1) is communicated with the environment simulation unit (2) and used for introducing gas in the environment simulation unit (2) into the gas generation chamber (11), the second gas inlet (11-2) is communicated with outside air and used for sucking the outside air into the gas generation chamber (11), and the gas outlet (11-3) is communicated with the environment simulation unit (2);
the environment simulation unit (2) comprises a simulation test box body and an auxiliary structure module (21), a sunlight simulation module (22), a wind power control module (23), an air temperature control module (24), a soil pillar pipe temperature control and water supply module (25), the sunlight simulation module (22) is arranged in the simulation test box body and the auxiliary structure module (21) and used for generating simulation illumination, the wind power control module (23) is arranged in the simulation test box body and the auxiliary structure module (21) and used for controlling the aerodynamic conditions in the environment simulation unit (2), the air temperature control module (24) is arranged in the simulation test box body and the auxiliary structure module (21) and used for controlling the air temperature conditions in the environment simulation unit (2), and the soil pillar pipe temperature control and water supply module (25) is arranged in the simulation test box body and the auxiliary structure module (21) and used for controlling the surface layer temperature, the surface layer temperature and the surface layer temperature of soil, Bottom temperature and water supply.
2. A phytotron according to claim 1, wherein: the simulation test box body and auxiliary structure module (21) comprises a simulation test box body (21-1), an equipment carrying platform (21-2) and a soil column tube (21-3), the simulation test box body (21-1) is of a hemispherical cavity structure, the simulation test box body (21-1) comprises an upper shell (21-11) and a lower shell (21-12), the upper shell (21-11) and the lower shell (21-12) are detachably and hermetically connected, a rubber sealing gasket (21-13) is arranged between the upper shell (21-11) and the lower shell (21-12), the simulation test box body (21-1) is arranged at the upper part of the equipment carrying platform (21-2), the soil column tube (21-3) is vertically arranged, and the upper end of the soil column tube (21-3) penetrates through the bottom of the lower shell (21-12) and is connected with the simulation test box body (21-3) 1) The inside is communicated.
3. A phytotron according to claim 2, wherein: the sunlight simulation module (22) comprises a spectrum continuous adjustable light source (22-1), a programmable light source controller (22-2), a light filter (22-3), a rectification heat insulation lampshade (22-4), an air-cooled heat dissipation device (22-5), a visible light illuminometer (22-6) and a spectrum radiometer (22-7), wherein the upper part of the spectrum continuous adjustable light source (22-1) is contacted with the bottom of the air-cooled heat dissipation device (22-5) and is used for transferring heat generated when the spectrum continuous adjustable light source (22-1) works to the air-cooled heat dissipation device (22-5), the air-cooled heat dissipation device (22-5) is fixedly installed at the central position of the top of the upper shell (21-11) and is used for discharging the heat transferred to the simulation test box body (21-1) by the spectrum continuous adjustable light source (22-1), the light filter (22-3) is arranged below the spectrum continuous adjustable light source (22-1) and used for filtering short-wave ultraviolet light rays emitted by the spectrum continuous adjustable light source (22-1), the rectifying and temperature-isolating lampshade (22-4) is arranged below the light filter (22-3), the visible light illuminometer (22-6) is arranged at the position, close to the top end of the soil column tube (21-3), of the inner side of the lower shell (21-12), the spectrum radiometer (22-7) is arranged at the position, close to the top end of the soil column tube (21-3), of the inner side of the lower shell (21-12), the visible light illuminometer (22-6) is electrically connected with the programmable light source controller (22-2) and used for transmitting visible light illumination information detected by the programmable light source controller to the programmable light source controller (22-2), the spectrum radiometer (22-7) is electrically connected with the programmable light source controller (22-2) and is used for transmitting the spectrum radiation information detected by the spectrum radiometer to the programmable light source controller (22-2), and the programmable light source controller (22-2) is electrically connected with the spectrum continuous adjustable light source (22-1) and is used for controlling the spectrum continuous adjustable light source (22-1) to simulate the sun illumination.
4. A phytotron according to claim 2 or 3, wherein: the wind control module (23) comprises an air inlet pipe (23-1), an axial flow fan (23-2), a recirculating gas regulating and controlling device (23-3), a wind speed sensor (23-4), a programmable wind power controller (23-5), a simulation test box temperature sensor (23-6) and a simulation test box humidity sensor (23-7), one end of the air inlet pipe (23-1) penetrates through the middle of the lower shell (21-12) and is communicated with the lower end of the recirculating gas regulating and controlling device (23-3), the upper end of the recirculating gas regulating and controlling device (23-3) is communicated with an air inlet of the axial flow fan (23-2), the axial flow fan (23-2) is horizontally arranged, the wind speed sensor (23-4) is arranged at a position, close to the top end of the soil column pipe (21-3), on the inner side of the lower shell (21-12) and used for detecting a wind speed value of a measuring The wind speed sensor (23-4) is electrically connected with the programmable wind controller (23-5) and is used for transmitting detected wind speed value information to the programmable wind controller (23-5), and the programmable wind controller (23-5) is electrically connected with the axial flow fan (23-2) and is used for controlling the start, stop and rotating speed of the axial flow fan (23-2);
the recirculating gas regulating and controlling device (23-3) comprises a first air duct, a second air duct and a second air duct air port size regulating device, the first air duct is vertically arranged, one end of the first air duct is communicated with one end of an air inlet pipe (23-1), the other end of the first air duct is communicated with an air inlet of an axial flow fan (23-2), the second air duct is horizontally arranged and communicated with the middle part of the first air duct, the second air duct air port size regulating device is arranged between the first air duct and the second air duct and used for regulating the size of an air port through which the second air duct is communicated with the first air duct, the simulation test box temperature sensor (23-6) is arranged at a position close to the top end of the soil column pipe (21-3) on the inner side of the lower shell (21-12) and used for detecting the ambient air temperature value of a measuring point, the simulation test box humidity sensor (23-7) is arranged at a position, close to the top end of the soil column tube (21-3), on the inner side of the lower shell (21-12) and used for detecting an environmental humidity value of a measuring point, the simulation test box temperature sensor (23-6) is electrically connected with the programmable wind power controller (23-5) and used for transmitting detected air temperature value information to the programmable wind power controller (23-5), the simulation test box humidity sensor (23-7) is electrically connected with the programmable wind power controller (23-5) and used for transmitting detected humidity value information to the programmable wind power controller (23-5), the programmable wind power controller (23-5) is electrically connected with the recirculated gas regulating device (23-3) and used for controlling the second air duct size regulating device, adjusting the size of the communicating tuyere;
the second air duct air opening size adjusting device comprises upper annular plates (23-31), lower annular plates (23-32), recirculating gas rotating shaft opening and closing plates (23-33) and opening and closing plate driving devices (23-34), the upper annular plates (23-31) and the lower annular plates (23-32) are horizontally arranged, the upper annular plates (23-31) are arranged right above the lower annular plates (23-32) and gaps are reserved between the upper annular plates (23-31) and the lower annular plates (23-32), the recirculating gas rotating shaft opening and closing plates (23-33) are vertically arranged between the upper annular plates (23-31) and the lower annular plates (23-32) and can rotate along vertical central axes of the recirculating gas rotating shaft opening and closing plates, the number of the recirculating gas rotating shaft opening and closing plates (23-33) is multiple, and the recirculating gas rotating shaft opening and closing plates are sequentially butted to form a closed ring, the closable ring is arranged on the annular surface of the upper annular plate (23-31) and the ring is concentric with the outer circle of the upper annular plate (23-31), the lower annular plate (23-32) is provided with vent holes (23-35), the vent holes (23-35) are positioned on the outer side of the closable annular plate, the opening and closing plate driving devices (23-34) are fixedly arranged on the upper sides of the upper annular plates (23-31), output shafts of the opening and closing plate driving devices (23-34) penetrate through the upper annular plates (23-31) and then are fixedly connected with the recirculating gas rotating shaft opening and closing plates (23-33), the number of the opening and closing plate driving devices (23-34) and the number of the recirculating gas rotating shaft opening and closing plates (23-33) are the same and are all a plurality, the programmable wind power controller (23-5) is electrically connected with the opening and closing plate driving device (23-34) and is used for controlling the size of the second air duct air opening.
5. A phytotron according to claim 4, wherein: the wind control module (23) further comprises an air inlet valve (23-13), a backflow valve (23-8), a backflow gas collecting pipe (23-9), a backflow gas collecting container (23-10), a backflow pipe (23-11) and a variable-frequency air compressor (23-12), the air inlet valve (23-13) is arranged on the air inlet pipe (23-1), the backflow valve (23-8) is arranged on the backflow pipe (23-11), one end of the backflow gas collecting pipe (23-9) is fixedly arranged at the bottom of the lower shell (21-12) and communicated with the inside of the simulation test box body (21-1), the other end of the backflow gas collecting pipe (23-9) is fixedly arranged on the outer wall of the backflow gas collecting container (23-10) and communicated with the inside of the backflow gas collecting container (23-10), one end of the return pipe (23-11) is fixed on the outer wall of the return gas collecting container (23-10) and is communicated with the inside of the return gas collecting container (23-10), the other end of the return pipe (23-11) is communicated with the first air inlet (11-1), the air inlet of the variable frequency air compressor (23-12) is communicated with the air outlet (11-3) of the gas generating chamber (11), the air outlet of the variable frequency air compressor (23-12) is communicated with the simulation test box body (21-1), the programmable wind power controller (23-5) is electrically connected with the air inlet valve (23-13) and is used for controlling the opening and closing of the air inlet valve (23-13), the programmable wind power controller (23-5) is electrically connected with the return valve (23-8) and is used for controlling the opening and closing of the return valve (23-8), the programmable wind power controller (23-5) is electrically connected with the variable-frequency air compressor (23-12) to control the variable-frequency air compressor (23-12) to work.
6. A phytotron according to claim 5, wherein: the gas temperature control module (24) comprises a fin heat exchange body (24-1) and a programmable heat exchange medium temperature control and conveying device (24-2), wherein the programmable heat exchange medium temperature control and conveying device (24-2) is communicated with the fin heat exchange body (24-1) and is used for conveying a heat exchange medium into the fin heat exchange body (24-1) at a preset temperature and a preset flow rate for heat exchange;
the fin heat exchanger (24-1) comprises a heat conduction pipe (24-11) and a heat conduction fin group (24-12), the heat conducting pipes (24-11) are of an unclosed annular structure, the heat conducting pipes (24-11) are horizontally arranged along the inner side wall of the lower part of the upper shell (21-11), the heat conduction fin group (24-12) is composed of a plurality of heat conduction fins which are vertical and are uniformly distributed along the length direction of the heat conduction pipe (24-11), the heat conduction pipes (24-11) sequentially penetrate through the middle parts of the heat conduction fins and are fixedly connected with the heat conduction fins, the simulation test box temperature sensor (23-6) is electrically connected with the programmable heat exchange medium temperature control and conveying device (24-2) and is used for transmitting the temperature value detected by the simulation test box temperature sensor to the programmable heat exchange medium temperature control and conveying device (24-2);
the programmable heat exchange medium temperature control and conveying device (24-2) comprises a heat conduction medium thermostat (24-21), a heat conduction medium circulating pump (24-22), a heat conduction medium temperature regulator (24-23), a heat conduction medium temperature sensor (24-24) and a programmable fin temperature controller (24-25), wherein the heat conduction medium circulating pump (24-22) is arranged in the heat conduction medium thermostat (24-21), an outlet of the heat conduction medium circulating pump (24-22) is communicated with one end of a heat conduction pipe (24-11), the other end of the heat conduction pipe (24-11) is communicated with the heat conduction medium thermostat (24-21), and the heat conduction medium temperature regulator (24-23) is arranged in the heat conduction medium thermostat (24-21) and is used for regulating the temperature of the heat conduction medium in the heat conduction medium thermostat (24-21) in a heating or refrigerating mode The device comprises a heat-conducting medium temperature sensor (24-24), a programmable fin temperature controller (24-25), a heat-conducting medium circulating pump (24-22), a programmable fin temperature controller (24-25), a heat-conducting medium temperature sensor (24-24), a heat-conducting medium temperature controller (24-23), a heat-conducting medium circulating pump (24-22), a heat-conducting medium temperature controller (24-24), a heat-conducting medium temperature controller (24-23), the programmable fin temperature controller (24-25) is electrically connected with the simulation test box temperature sensor (23-6) and is used for receiving the temperature value information transmitted by the simulation test box temperature sensor (23-6).
7. A phytotron according to claim 6, wherein: the soil column tube temperature control and water supply module (25) comprises a soil column tube surface temperature control device (25-1) and a soil column tube bottom temperature control and water supply device (25-2), the soil column tube surface temperature control device (25-1) comprises a middle far infrared reflector lamp (25-11), a middle far infrared reflector lamp controller (25-12), an infrared thermometer (25-13) and a middle far infrared radiometer (25-14), the middle far infrared reflector lamp (25-11) is fixedly arranged at the top of the inner side of the upper shell (21-11), the infrared thermometer (25-13) is arranged at the position, close to the top end of the soil column tube (21-3), of the inner side of the lower shell (21-12), the middle far infrared radiometer (25-14) is arranged at the position, close to the top end of the soil column tube (21-3), of the inner side of the lower shell (21-12), the light beam of the middle and far infrared spot light (25-11) can irradiate the opening of the pipe at the upper end of the soil column pipe (21-3), the light beam can cover the whole pipe opening at the upper end of the soil column pipe (21-3) and the middle and far infrared radiometers (25-14) close to the top end of the soil column pipe (21-3), the infrared thermometers (25-13) are electrically connected with the middle and far infrared spot light controller (25-12) and are used for transmitting the soil surface layer temperature value detected by the middle and far infrared spot light to the middle and far infrared spot light controller (25-12), the middle and far infrared radiometers (25-14) are electrically connected with the middle and far infrared spot light controller (25-12) and are used for transmitting the infrared radiation value detected by the middle and far infrared spot light to the middle and far infrared spot light controller (25-12), and the middle and far infrared spot light controller (25-12) is electrically connected with the middle and far infrared spot light Working state;
the soil column pipe bottom temperature control and water supply device (25-2) comprises a March's bottle (25-21), a water supply pipeline water temperature control device (25-22), a soil temperature sensor (25-23) and a soil column pipe heat insulation layer (25-24), the March's bottle (25-21) is communicated with the bottom of the soil column pipe (21-3) through a water level connecting pipeline and is used for regulating and controlling the height of the underground water level in the soil column pipe (21-3), the water supply pipeline water temperature control device (25-22) is arranged on the water level connecting pipeline between the March's bottle (25-21) and the soil column pipe (21-3) and is used for regulating and controlling the water flow temperature entering the soil column pipe (21-3) from the March's bottle (25-21), the March's bottle (25-21) is provided with scales, the soil temperature sensors (25-23) are multiple in number, the soil temperature sensors (25-23) are sequentially arranged in the soil column tube (21-3) at intervals and used for detecting the soil temperature of each arrangement point, the soil temperature sensors (25-23) are electrically connected with the water supply pipeline water temperature control device (25-22) and used for transmitting the detected temperature information to the water supply pipeline water temperature control device (25-22), and the soil column tube heat insulation layer (25-24) is wrapped on the side wall of the soil column tube (21-3) and used for preventing the soil in the soil column tube (21-3) from exchanging heat with the external environment.
8. A phytotron according to claim 7, wherein: the bottom inboard of soil column pipe (21-3) is provided with inverted filter (21-4), still be equipped with soil moisture content sensor (21-5), soil salinity sensor (21-6) in soil column pipe (21-3), the quantity of soil moisture content sensor (21-5) is a plurality of, and is a plurality of soil moisture content sensor (21-5) interval in proper order is laid in soil column pipe (21-3) and is used for detecting the soil moisture content of each distribution point, the quantity of soil salinity sensor (21-6) is a plurality of, and is a plurality of soil salinity sensor (21-6) interval in proper order is laid in soil column pipe (21-3) and is used for detecting the soil salinity content of each distribution point.
9. A phytotron according to claim 8, wherein: the bottom of the equipment carrying platform (21-2) is provided with universal rollers which have a braking function;
the opening and closing plate driving devices (23-34) are servo motors;
the gas temperature and humidity adjusting device (12) of the gas generation chamber comprises a gas temperature and humidity adjusting execution component (12-1), a gas generation chamber temperature sensor (12-2), a gas generation chamber humidity sensor (12-3), an internal circulating fan (12-4) and a programmable temperature and humidity controller (12-5), wherein the gas generation chamber temperature sensor (12-2) is arranged in the gas generation chamber (11) and used for measuring a gas temperature value in the gas generation chamber (11), the gas generation chamber humidity sensor (12-3) is arranged in the gas generation chamber (11) and used for measuring a gas humidity value in the gas generation chamber (11), the gas generation chamber temperature sensor (12-2) is electrically connected with the programmable temperature and humidity controller (12-5) and used for transmitting a temperature value measured by the gas generation chamber temperature and humidity adjusting execution component to the programmable temperature and humidity controller (12-5), the gas generation chamber humidity sensor (12-3) is electrically connected with the programmable temperature and humidity controller (12-5) and is used for transmitting a measured humidity value to the programmable temperature and humidity controller (12-5), the programmable temperature and humidity controller (12-5) is electrically connected with the gas temperature and humidity adjustment executing component (12-1) and is used for controlling the gas temperature and humidity adjustment executing component (12-1) to adjust the gas temperature and humidity in the gas generation chamber (11), the programmable temperature and humidity controller (12-5) is electrically connected with the internal circulating fan (12-4) and is used for controlling the working state of the internal circulating fan (12-4), and the programmable temperature and humidity controller (12-5) is electrically connected with the simulation test chamber temperature sensor (23-6) and is used for receiving temperature information transmitted to the simulation test chamber temperature sensor (23-6), the programmable temperature and humidity controller (12-5) is electrically connected with the humidity sensor (23-7) of the simulation test chamber and is used for receiving the humidity information transmitted to the humidity sensor (23-7) of the simulation test chamber.
10. A phytotron according to claim 9, wherein: the simulation test box body and auxiliary structure module (21) further comprises a condensate recovery device (21-7), the condensate recovery device (21-7) comprises a U-shaped condensate water collecting tank (21-71), a liquid level meter (21-72), a condensate water draining valve (21-73), a water draining pipeline (21-74), a water draining controller (21-75) and a water pump motor (21-76), the U-shaped condensate water collecting tank (21-71) is arranged at the bottom of the lower shell (21-12) and used for collecting condensate water generated in the simulation test box, one end of the water draining pipeline (21-74) is fixedly connected with the bottom of the lower shell (21-12) and communicated with the bottom of the U-shaped condensate water collecting tank (21-71), and the other end of the water draining pipeline (21-74) is communicated with the gas generation chamber (11), the condensate drain valve (21-73) is arranged on the drain pipe (21-74), the liquid level meter (21-72) is arranged in the U-shaped condensate water collecting tank (21-71) and is used for detecting the liquid level of condensate water in the lower shell (21-12), the liquid level meters (21-72) are electrically connected with the drainage controllers (21-75) and are used for transmitting the liquid level information of the condensed water in the lower shells (21-12) to the drainage controllers (21-75), the drain controller (21-75) is electrically connected with the condensate drain valve (21-73) and is used for controlling the opening and closing of the condensate drain valve (21-73), the drainage controller (21-75) is electrically connected with the water pump motor (21-76) and is used for controlling the on and off of the water pump motor (21-76).
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