Field open type temperature increasing test device and installation method

Abstract

The invention discloses a field open type temperature increasing test device and an installation method, the device comprises a plurality of wind rods, the wind rods are provided with first clamping plates, the first clamping plates support a combined support, and a plurality of infrared radiation heating assemblies are arranged below the combined support; the combined support is further provided with a detachable connecting rod assembly, one end of the connecting rod assembly is connected with a canopy temperature sensor through a second clamping plate, the canopy temperature sensor is obliquely arranged, and a sensor probe of the canopy temperature sensor faces the infrared radiation heating assembly. According to the field open type temperature increasing test device, on the basis of the movable and adjustable infrared radiation heater, the temperature of plant canopies can be increased regularly, the temperature increasing amplitude can be regulated and controlled in real time according to the target temperature difference, data can be recorded automatically, and the height of a heat source can be adjusted according to the plant height change caused by the change of the growth period of crops; the device is especially suitable for carrying out crop growth response related field trials under the future situation of simulating climate warming.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural test equipment, and in particular to a field open-type temperature-increasing test device and an installation method thereof. Background Art

[0002] At present, most of the research on agricultural water management is carried out under the current climate conditions. Among the many problems of global climate change, global warming has become an indisputable fact, and the trend of global warming is still continuing. Records show that the average annual surface temperature has increased by 0.26℃ / 10a, which is higher than the global average level (0.15℃ / 10a) during the same period. Climate warming will inevitably change the physiological mechanisms and water use processes of many crops, but it is still unclear how climate warming affects the production of major crops. Therefore, in response to the current reality of global warming and the requirements for ensuring food security, revealing the physiological response mechanism of major crops such as rice to climate warming, clarifying the impact of climate warming on its yield and water use efficiency, evaluating the impact of different planting management behaviors on the water use efficiency of different crops under future climate warming scenarios, and proposing adaptive strategies have become important scientific research exploration directions. This process inevitably requires the comprehensive implementation of various field observation tests. However, most closed or semi-closed test environments are quite different from the natural ecological environment conditions. Therefore, creating a micro-ecological environment that simulates future climate warming to conduct temperature increase simulation tests is very necessary to obtain data that is closer to the actual situation. However, there is currently a lack of an open test platform warming simulation device with strong adaptability. Summary of the invention

[0003] The purpose of the present invention is to provide a field open-type temperature-increasing test device and an installation method in view of the problems existing in the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A field open-type warming test device comprises a plurality of wind poles, a plurality of first clamping plates are arranged at intervals on the wind poles, a detachable combined bracket is supported on the plurality of first clamping plates on the same plane, a plurality of adjustable infrared radiation heating components are arranged below the combined bracket, the heating surface of the infrared radiation heating component is 1 to 1.5 m away from the plant canopy height; a detachable connecting rod component is also arranged on the combined bracket, one end of the connecting rod component is connected to a canopy temperature sensor via a second clamping plate, the canopy temperature sensor is arranged obliquely, and the sensor probe of the canopy temperature sensor faces the infrared radiation heating component.

[0005] This open-air warming test device is based on a movable and adjustable infrared radiation heater, which can achieve timed warming of the plant canopy, real-time control of the warming amplitude according to the target temperature difference and automatic data recording, and can adjust the heat source height as the plant height changes due to changes in the crop growth period. It is particularly suitable for conducting field experiments related to crop growth response under future conditions of simulated climate warming. Moreover, the entire test device has a simple structure, good flexibility, and is easy to install and use, so it can be conveniently set up and conduct experiments in an open outdoor field.

[0006] The arrangement of multiple wind rods can form an overall framework of the plant, and the first clamping plate can be used to conveniently support the combined bracket; for multiple wind rods, the multiple first clamping plates arranged at intervals up and down can allow the multiple first clamping plates located on the same horizontal plane to form a mounting layer, and the combined bracket can be stably supported by this mounting layer, and the height and number of the mounting layers are flexibly adjustable, and can be adaptively adjusted according to the growth height of the crops planted; by adjusting the height, the height from the heating surface to the plant canopy is kept at about 1 to 1.5 meters, which is conducive to scientific warming, and the micro-domain ecological environment simulating climate warming is closer to the real situation.

[0007] The infrared radiation heating assembly can heat the plants and fields below to simulate climate warming; the canopy temperature sensor is used to monitor the temperature of the canopy in the test area so as to accurately and scientifically control the temperature.

[0008] The arrangement of the combined bracket and the connecting rod assembly can form a shelf for mounting the infrared radiation heating assembly and the canopy temperature sensor. The detachable connection facilitates their installation and disassembly, and their status can be adjusted at any time according to actual conditions. The arrangement of the second clamping plate also helps the canopy temperature sensor to adjust the angle of its probe.

[0009] Furthermore, a wind pole foundation is provided below the wind pole, and the wind pole foundation is formed by pouring cement outside the foundation frame, and the foundation frame includes a steel cage and a plurality of anchor bolts connected to the steel cage, and the anchor bolts are connected to a positioning plate on the upper surface of the wind pole foundation, and the anchor bolts extend out of the cement and connect the wind pole. The wind pole foundation provides a reliable and stable installation foundation for the wind pole, so as to prevent the instability of the field soil from causing the stability of the entire device to deteriorate and affect the test.

[0010] Furthermore, the first clamping plate is a tree-branch-shaped clamping plate, comprising a first clamping plate body with a "U"-shaped cross-section, and the upper and lower plates of the first clamping plate body are provided with clamping grooves, and the clamping grooves are clamped and connected to the wind rod and connected to the side wall of the first clamping plate body through "U"-shaped bolts; the side wall of the first clamping plate body is also provided with an upwardly inclined limiting support rod to support and limit the steel pipe.

[0011] Furthermore, the combined bracket includes a rectangular frame formed by overlapping multiple steel pipes through vertical pipe sleeves, and a pair of symmetrical inclined steel pipes are also provided on the rectangular frame, and the inclined steel pipes are connected to the rectangular frame through a cross-lap assembly; the infrared radiation heating components are respectively installed under the steel pipes and the inclined steel pipes; and a limit groove is also provided near the end position of the steel pipe.

[0012] Furthermore, the vertical pipe sleeve includes a first sleeve and a second sleeve vertically connected, the first sleeve and the second sleeve are respectively connected to the steel bars in two directions, and the sides of the first sleeve and the second sleeve are also respectively provided with locking screws; the cross-lap assembly includes a cross-lap plate, the cross-lap plate is provided with grooves and notches in two vertical directions, and the cross-lap plate is also respectively connected with "U"-shaped bolts in two vertical directions.

[0013] Furthermore, the infrared radiation heating component includes a closed stainless steel lampshade, in which an infrared radiation heating tube is arranged, and the stainless steel lampshade is connected to the combined bracket through a plurality of tail clamps; a plurality of the infrared radiation heating components form at least one group of triangular heating lamps, and the plurality of the infrared radiation heating tubes are arranged horizontally.

[0014] Furthermore, the connecting rod assembly includes a horizontal long rod overlapped on the combined bracket through a cross-lap assembly, one end of the horizontal long rod extends out of the combined bracket and is connected to a vertical short rod through a vertical pipe sleeve, and the vertical short rod is connected to the second clamping plate through a "U"-shaped bolt.

[0015] Furthermore, the second clamping plate is an angled clamping plate, which is an obtuse-angle "V"-shaped panel as a whole, one page of which is provided with grooves and holes for connecting the connecting rod assembly, and the other page is provided with a pair of centrally symmetrical arc-shaped hole rails for matching another "U"-shaped bolt to connect the canopy temperature sensor, and the angle between the sensor probe of the canopy temperature sensor and the vertical is 38°~39°.

[0016] A method for installing a field open-type warming test device, the method comprising the following steps: Select a rectangular temperature increase test area and dig a foundation pit at each of the four corners of the rectangular temperature increase test area; A wind pole foundation is arranged in the foundation pit, and one wind pole is respectively installed on the wind pole foundation; A plurality of first clamping plates are arranged at intervals on the wind poles, and the first clamping plates on each wind pole and located on the same horizontal plane form a mounting layer; The combined bracket is placed on the installation layer, and the infrared radiation heating component is hung below the combined bracket to form a triangular heating lamp group, and the projection area below the triangular position belongs to the heating core area; The connecting rod assembly is installed on the combined bracket, and the canopy temperature sensor is installed on the part of the connecting rod assembly located at the periphery of the combined bracket through the second clamping plate. The sensor probe is adjusted to face the heating core area of ​​the triangular heating lamp group by rotating the second clamping plate. The effective projection area of ​​the light beam of the canopy temperature sensor on the horizontal plane is elliptical and does not exceed the boundary of the rectangular warming test area below.

[0017] The infrared radiation heating component is turned on to increase the temperature of the test area, and the canopy temperature is measured by the canopy temperature sensor. The data is transmitted back to the data collector in the control cabinet to record the data in real time. The temperature increase amplitude is controlled by instructions, and the instructions at least include: setting the target temperature increase amplitude to be 2°C higher than the background temperature. When the average temperature increase amplitude is greater than 2°C, the power of the infrared radiation heating component is automatically reduced to reduce the temperature increase amplitude until the average temperature increase level returns to 2°C.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. The open-air warming test device in the field can achieve timed warming of the plant canopy based on a movable and adjustable infrared radiation heater, and can adjust the warming amplitude in real time according to the target temperature difference and automatically record data, and can adjust the heat source height as the plant height changes due to changes in the crop growth period, which is particularly suitable for conducting field experiments related to crop growth response under future conditions of simulated climate warming; 2. The entire test device has a simple structure, good flexibility, and is easy to install and use, and can be conveniently set up and conduct experiments in an open field outdoors; 3. The multiple first pallets arranged at intervals up and down can allow the multiple first pallets located on the same horizontal plane to form a mounting layer, and the mounting layer can stably support the combined bracket, and the height and number of the mounting layers are flexible Adjustable, and can be adaptively adjusted according to the growth height of the crops planted; 4. The infrared radiation heating component can heat and increase the temperature of the plants and fields below, simulating climate warming. By adjusting the height, the height from the heating surface to the plant canopy is kept at about 1 to 1.5 meters, which is conducive to scientific warming, and the micro-domain ecological environment simulating climate warming is closer to the real situation; 5. The canopy temperature sensor is used to monitor the temperature of the canopy in the test area in order to accurately and scientifically control the temperature; 6. The setting of the combined bracket and the connecting rod assembly can form a shelf for installing the infrared radiation heating component and the canopy temperature sensor, which is convenient to install and disassemble, and can adjust its status at any time according to actual conditions. The setting of the second clamping plate also helps the canopy temperature sensor to adjust the angle of its probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of a field open-type temperature-increasing test device of the present invention; Figure 2 It is a structural schematic diagram of the wind pole foundation of the present invention; Figure 3 It is a schematic diagram of the internal connection structure of the wind pole foundation of the present invention; Figure 4 It is a structural schematic diagram of the first card board of the present invention; Figure 5 Three views of the first card board of the present invention; Figure 6 It is a structural schematic diagram of the combined bracket of the present invention; Figure 7 It is a schematic diagram of the structure of the cross-lap assembly of the present invention; Figure 8 It is a three-view drawing of the cross-lap assembly of the present invention; Fig. 9 It is a structural schematic diagram of the connecting rod assembly of the present invention; Fig.10It is a schematic diagram of the structure of the infrared radiation heating assembly of the present invention; Fig.11 This is a schematic diagram of the structure of the tail-hanging hoop pipe clamp of the present invention; Fig.12 It is a structural schematic diagram of the second card board of the present invention; In the figure: 1. wind pole; 2. first clamping plate; 201. first clamping plate body; 202. clamping groove; 203. limit support rod; 3. combined bracket; 301. steel pipe; 302. inclined steel pipe; 303. limit groove; 4. infrared radiation heating assembly; 401. stainless steel lampshade; 402. infrared radiation heating tube; 5. connecting rod assembly; 501. horizontal long rod; 502. vertical short rod; 6. canopy temperature sensor; 7. second clamping plate; 8. vertical pipe sleeve; 801. first sleeve; 802. second sleeve; 9. cross lap assembly; 901. cross lap plate; 902. groove; 903. notch; 10. tail clamp; 11. wind pole foundation; 1101. steel cage; 1102. anchor bolt; 1103. positioning plate; 12. arc hole rail. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] like Figures 1 to 12As shown, a field open-type warming test device comprises a plurality of wind poles 1, a plurality of first clamping plates 2 are arranged at intervals on the wind poles 1, a detachable combined bracket 3 is supported on the plurality of first clamping plates 2 on the same plane, a plurality of adjustable infrared radiation heating components 3 are arranged below the combined bracket 3, the heating surface of the infrared radiation heating component 4 is at a height of 1 to 1.5 m from the plant canopy; a detachable connecting rod component 5 is also provided on the combined bracket 4, one end of the connecting rod component 5 is connected to a canopy temperature sensor 6 via a second clamping plate 7, the canopy temperature sensor 6 is arranged at an angle, and the sensor probe of the canopy temperature sensor 6 faces the infrared radiation heating component 4.

[0023] This open-air warming test device is based on a movable and adjustable infrared radiation heater, which can achieve timed warming of the plant canopy, real-time control of the warming amplitude according to the target temperature difference and automatic data recording, and can adjust the heat source height as the plant height changes due to changes in the crop growth period. It is particularly suitable for conducting field experiments related to crop growth response under future conditions of simulated climate warming. Moreover, the entire test device has a simple structure, good flexibility, and is easy to install and use, so it can be conveniently set up and conduct experiments in an open outdoor field.

[0024] The arrangement of multiple wind rods 1 can form an overall framework of the plant, and the first clamping plate can be used to conveniently support the combined bracket 3; for multiple wind rods 1, the multiple first clamping plates 2 arranged at intervals up and down can allow the multiple first clamping plates located on the same horizontal plane to form a mounting layer, and the combined bracket 3 can be stably supported by this mounting layer, and the height and number of the mounting layers are flexibly adjustable, and can be adaptively adjusted according to the growth height of the crops planted; by adjusting the height, the height from the heating surface to the plant canopy is kept at about 1 to 1.5 meters, which is conducive to scientific warming, and the micro-domain ecological environment simulating climate warming is closer to the real situation.

[0025] The infrared radiation heating assembly 4 can heat the plants and fields below to simulate climate warming; the canopy temperature sensor 6 is used to monitor the temperature of the canopy in the test area so as to accurately and scientifically control the temperature.

[0026] The arrangement of the combined bracket 3 and the connecting rod assembly 5 can form a shelf for mounting the infrared radiation heating assembly and the canopy temperature sensor. The detachable connection facilitates their installation and disassembly, and their status can be adjusted at any time according to actual conditions. The arrangement of the second clamping plate 7 also helps the canopy temperature sensor 6 to adjust the angle of its probe.

[0027] Further, combined with Figure 3A wind pole foundation 11 is provided below the wind pole 1, and the wind pole foundation 11 is formed by pouring cement outside the foundation frame, and the foundation frame includes a steel cage 1101, and a plurality of anchor bolts 1102 connected to the steel cage 1101, and the anchor bolts 1102 are connected to a positioning plate 1103 on the upper surface of the wind pole foundation, and the anchor bolts 1102 extend out of the cement and connect the wind pole 1.

[0028] The setting of the wind pole foundation 11 is helpful for the installation of the wind pole, and provides a reliable and stable installation foundation for the wind pole, so as to prevent the instability of the field soil from causing the stability of the entire device to deteriorate and affect the test. The steel cage 1101 and the anchor bolts 1102 are arranged with cement, and have high strength and stability. The anchor bolts 1102 are pre-buried in the cement, and the part extending above can be directly connected to the wind pole 1. The positioning plate 1103 is arranged on the upper surface of the cement and can be easily connected to the bottom of the wind pole.

[0029] Further, combined with Figure 4 and Figure 5 As shown, the first clamping plate 2 is a tree-branch-shaped clamping plate, including a first clamping plate body 201 with a "U"-shaped cross-section, and the upper and lower plates of the first clamping plate body 201 are provided with clamping grooves 202, and the clamping grooves 202 are clamped and connected with the wind rod 1 and connected with the side wall of the first clamping plate body 201 through "U"-shaped bolts; the side wall of the first clamping plate body 201 is also provided with an upwardly inclined limit support rod 203.

[0030] The first clamping plate 2 is set to be shaped like a tree branch, so that it can be installed on the wind pole like a tree branch, and provide a steel pipe installation space for supporting the combined bracket; the first clamping plate body can be fitted with the wind pole by using the clamping groove set on one side, and then fastened with a "U"-shaped bolt to complete the fixation, which is very simple and convenient to operate. The limit support rod 203 is tilted upward to form a support installation space with the first clamping plate body. This "U"-shaped bolt will be used at multiple connection positions of the device.

[0031] Further, combined with Figure 6 As shown, the combined bracket 3 includes a rectangular frame formed by overlapping multiple steel pipes 301 through vertical pipe sleeves 8, and a pair of symmetrical inclined steel pipes 302 are also provided on the rectangular frame, and the inclined steel pipes 302 are connected to the rectangular frame through a cross-lap assembly 9; the infrared radiation heating assembly 4 is respectively installed under the steel pipe 301 and the inclined steel pipe 302; the steel pipe 301 is also provided with a limiting groove 303 near the end position, and the setting of the limiting groove 303 is coordinated with the upper limit support rod 203 on the first clamping plate. Through its limitation, the axial movement of the steel pipe can be avoided, and its falling can also be avoided.

[0032] In this embodiment, the combined bracket 3 is formed by overlapping six steel pipes, and the whole is in the shape of "four". The outside is overlapped by four steel pipes in a rectangular shape, and the overlaps are overlapped by vertical pipe sleeves 8. Inside the rectangle, two oblique steel pipes are overlapped in an "eight" shape with the short axis as the symmetry axis, and the overlaps are connected and fixed by a cross overlap mechanism. With this connection method, the required heating and temperature-increasing environment can be formed above the test area, and the overlap is convenient and has good stability.

[0033] Furthermore, the vertical pipe sleeve 8 includes a first sleeve 801 and a second sleeve 802 vertically connected, the first sleeve 801 and the second sleeve 802 are respectively connected to the steel bars in two directions, and the sides of the first sleeve 801 and the second sleeve 802 are also respectively provided with locking screws; this vertical 90° pipe sleeve can conveniently connect vertical and horizontal pipes, and can be locked in the required position with the locking screws.

[0034] Combination Figure 7 and Figure 8 As shown, the cross-lap assembly 9 includes a cross-lap plate 901, and the cross-lap plate 901 is provided with grooves 902 and notches 903 in two vertical directions, so that the grooves 902 and notches 903 can be used to cooperate with steel pipes, so as to stably carry the steel pipes to be cross-lapped, and then cooperate with the "U"-shaped bolts in the two vertical directions to fasten the steel pipes in the two directions together.

[0035] Further, combined with Fig.10 and Fig.11 As shown, the infrared radiation heating component 4 includes a closed stainless steel lampshade 401, in which an infrared radiation heating tube 402 is arranged, and the stainless steel lampshade 401 is connected to the combined bracket 3 through a plurality of tail clamps 10; a plurality of the infrared radiation heating components 4 form at least one group of triangular heating lamps, and a plurality of the infrared radiation heating tubes 402 are arranged horizontally.

[0036] In this embodiment, the stainless steel lampshade 401 is a regular triangular prism with four closed sides, and the open side faces downward. The infrared radiation heating tube 402 is horizontally fixed inside the lampshade. The upper part of each lampshade is vertically hung under the steel pipe of the combined bracket 3 through two of the tail clamp pipe clamps 10, forming a triangular heating lamp group. In addition, in order to ensure that the horizontal height of each lampshade in the triangular heating lamp group remains consistent, the tail portion of the tail clamp pipe clamp 10 connecting the two lampshades under the symmetrical hypotenuse of the triangle is 30 mm longer than the tail portion of the tail clamp pipe clamp 10 connecting the lampshade under the bottom edge of the triangle.

[0037] Furthermore, the connecting rod assembly 5 includes a horizontal long rod 501 overlapped on the combined bracket 3 through a cross-lap assembly 9, one end of the horizontal long rod 501 extends out of the combined bracket and is connected to a vertical short rod 502 through a vertical pipe sleeve 8, and the vertical short rod 502 is connected to the second clamping plate 7 through a "U"-shaped bolt. Through such an arrangement, the canopy temperature sensor 6 can be arranged on the periphery of the combined bracket 3 to avoid the canopy temperature sensor 6 being directly in the triangular heating lamp group, and the area scanned by the sensor probe covers the test area as much as possible, so that it can complete the test and avoid high temperature heating and baking of the sensor body.

[0038] Further, combined with Fig.12 As shown, the second clamping plate 7 is an angled clamping plate, which is an obtuse "V"-shaped panel as a whole, one page of which is provided with grooves and holes for connecting the connecting rod assembly, and the other page is provided with a pair of centrally symmetrical arc-shaped hole rails 12 for matching another "U"-shaped bolt to connect the canopy temperature sensor 6. The angle between the sensor probe of the canopy temperature sensor 6 and the vertical direction is 38°~39°.

[0039] The second clamping plate 7 is in the form of an angled clamping plate, which can form an angled mounting structure, and combined with the arrangement of a pair of arc-shaped hole rails 12, the angle and orientation of the connected canopy temperature sensor can be adjusted.

[0040] In this embodiment, the canopy temperature sensor 6 is fixed to a page of the angled clamping plate with an arc-shaped hole rail by a "U"-shaped bolt, and the sensor probe is facing the triangular heating lamp group side. Taking the vertical distance of the sensor probe from the canopy surface as 1.2m as an example, the vertical angle of the sensor is preferably maintained at 38°~39°.

[0041] A method for installing a field open-type warming test device, the method comprising the following steps: Before installing this device, you need to find a suitable installation site, such as a place with convenient electricity access or a place that is not prone to soil erosion. Places that are shaded all year round or close to rivers should not be selected.

[0042] Step 1: During installation, select a rectangular temperature increase test area, dig a foundation pit with a length of 300mm, a width of 300mm, and a depth of 400mm at the four corners of the rectangular temperature increase test area, and set up the template in it.

[0043] Step 2: setting a wind pole foundation 11 in the foundation pit, and installing one wind pole 1 on each wind pole foundation 11; Specifically, the positioning plate 1103 and the anchor bolt 1102 are connected according to Figure 2The method shown (the anchor bolts are located at the four corners of the positioning plate) is fully welded, and round steel is used to surround the four anchor bolts 1102 to form a steel cage 1101, and welded to the anchor bolts 1102, and the surface is hot-dip galvanized to obtain a foundation skeleton, and then the foundation skeleton is placed in the middle of the foundation pit, and the anchor bolts are exposed with a 45mm height thread and then poured with cement to ensure that the upper surface of the positioning plate 1103 is flush with the upper surface of the cement platform. The installation of the wind pole foundation 11 is completed; then the wind pole 1 is fixed to the wind pole foundation 11 in sequence through the reserved threads on the surface of the wind pole foundation.

[0044] Step 3: Arrange a plurality of first clamping plates 2 at intervals on the wind pole 1, and the first clamping plates 2 on each wind pole 1 and located on the same horizontal plane form a mounting layer; Specifically, the engaging groove 202 of the first clamping plate body 201 abuts against one side of the wind rod 1, and the outer periphery of the other side of the wind rod 1 is clamped with a "U"-shaped bolt and then connected and fixed with the first clamping plate body 201, so that the limiting support rod 203 thereon is tilted upward.

[0045] Step 4: placing the combined bracket 3 on the installation layer, hanging the infrared radiation heating assembly 4 below the combined bracket 3, and forming a triangular heating lamp group, the projection area below the triangular position belongs to the heating core area; Specifically, the infrared radiation heating tube 402 is inserted and fixed in the stainless steel lampshade 401 to form a heating lamp; the four outer steel pipes are first overlapped in a rectangular shape through the vertical pipe sleeve 8, and then the two oblique steel pipes are obliquely overlapped on the upper part of the long side steel pipe in an "eight" shape with the short axis of the rectangular frame as the symmetry axis, and the overlapped part is connected and fixed by the cross overlap assembly 9; after the combined bracket 3 is assembled, the heating lamps can be hung under the combined bracket 3 in turn through the tail clamp pipe clamp 10 to form a triangular heating lamp group, and the projected area below the triangle belongs to the heating core area.

[0046] Step 5: Install the connecting rod assembly 5 on the combined bracket 3, and connect and install the canopy temperature sensor 6 on the part of the connecting rod assembly 5 located at the periphery of the combined bracket through the second clamping plate 7. By rotating the second clamping plate, adjust the sensor probe to face the central axis of the triangular heating lamp group (heating core area). The effective projection area of ​​the light beam of the canopy temperature sensor on the horizontal plane is elliptical and does not exceed the boundary of the rectangular warming test area below.

[0047] Specifically, the groove surface of the angled card plate is fixed to the vertical short rod 502 of the connecting rod assembly 5 by using a "U"-shaped bolt, and at this time the angled card plate has a rotational freedom of rotation adjustment centered on the vertical short rod, and then the canopy temperature sensor 6 is fixed to a page of the angled card plate with an arc-shaped hole rail by using a "U"-shaped bolt, and the angle and orientation of the canopy temperature sensor are adjusted by rotating the angled card plate; the canopy temperature sensor 6 measures the canopy temperature of the target area by infrared beam radiation, and the angle of the infrared beam emitted by the sensor probe is 44°, so when the canopy temperature sensor 6 is placed at a certain angle, its effective projection area on the horizontal plane is an ellipse, in order to ensure that the effective area of ​​the light beam projected to the target canopy is as large as possible and does not exceed the boundary of the test area below, taking the vertical distance of the sensor probe from the canopy surface as 1.2m as an example, it is calculated that the vertical angle of the sensor is preferably maintained at 38°~39°.

[0048] The infrared radiation heating component is turned on to increase the temperature of the test area, and the canopy temperature is measured through the canopy temperature sensor. The data is transmitted back to the data collector in the control cabinet to record the data in real time; the temperature increase amplitude is controlled by instructions, and the instructions at least include: setting the target temperature increase amplitude to be 2°C higher than the background temperature. When the average temperature increase amplitude is greater than 2°C, the power of the infrared radiation heating component is automatically reduced to reduce the temperature increase amplitude until the average temperature increase level returns to 2°C, and vice versa. In addition, as the crop growth period changes, the canopy surface level will also increase with the increase in plant height. It is preferred to maintain the distance between the heat source and the canopy surface level at 1m to 1.3m. When the canopy surface level is raised to a distance less than 1m from the heating lamp group, the combined bracket 20 can be lifted to a higher level of the erection layer composed of tree-like pallets, thereby achieving the purpose of freely adjusting the height of the heat source.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A field open temperature increase test device, characterized in that: It comprises a plurality of wind poles, on which a plurality of first clamping plates are arranged at intervals, a detachable combined bracket is supported on the plurality of first clamping plates on the same plane, a plurality of adjustable infrared radiation heating components are arranged below the combined bracket, and the heating surface of the infrared radiation heating component is 1 to 1.5 m away from the plant canopy; a detachable connecting rod component is also arranged on the combined bracket, one end of the connecting rod component is connected to a canopy temperature sensor via a second clamping plate, the canopy temperature sensor is arranged obliquely, and the sensor probe of the canopy temperature sensor faces the infrared radiation heating component.

2. The field open-type warming test device according to claim 1, characterized in that: A wind pole foundation is provided under the wind pole, and the wind pole foundation is formed by pouring cement on the outside of a foundation frame. The foundation frame includes a steel cage and a plurality of anchor bolts connected to the steel cage. The anchor bolts are connected to a positioning plate on the upper surface of the wind pole foundation, and the anchor bolts extend out of the cement and are connected to the wind pole.

3. The field open-type warming test device according to claim 1, characterized in that: The first clamping plate is a tree-branch-shaped clamping plate, comprising a first clamping plate body with a "U"-shaped cross-section, wherein the upper and lower plates of the first clamping plate body are provided with clamping grooves, wherein the clamping grooves are clamped and connected to the wind rod and are connected to the side wall of the first clamping plate body through "U"-shaped bolts; the side wall of the first clamping plate body is also provided with an upwardly inclined limiting support rod.

4. The field open-type warming test device according to claim 1, characterized in that: The combined bracket includes a rectangular frame formed by overlapping multiple steel pipes through vertical pipe sleeves, and a pair of symmetrical inclined steel pipes are also provided on the rectangular frame. The inclined steel pipes are connected to the rectangular frame through a cross-lap assembly; the infrared radiation heating components are respectively installed under the steel pipes and the inclined steel pipes; and the steel pipes are also provided with limit grooves near the end positions.

5. The field open-type warming test device according to claim 4, characterized in that: The vertical pipe sleeve includes a first sleeve and a second sleeve vertically connected, the first sleeve and the second sleeve are respectively connected to the steel bars in two directions, and the sides of the first sleeve and the second sleeve are also respectively provided with locking screws; the cross-lap assembly includes a cross-lap plate, the cross-lap plate is provided with grooves and notches in two vertical directions, and the cross-lap plate is also respectively connected with "U"-shaped bolts in two vertical directions.

6. The field open-type warming test device according to claim 1, characterized in that: The infrared radiation heating component includes a closed stainless steel lampshade, in which an infrared radiation heating tube is arranged, and the stainless steel lampshade is connected to the combined bracket through a plurality of tail clamps; a plurality of the infrared radiation heating components form at least one triangular heating lamp group, and the plurality of the infrared radiation heating tubes are arranged horizontally.

7. The field open-type warming test device according to claim 1, characterized in that: The connecting rod assembly includes a horizontal long rod overlapped on the combined bracket through a cross-lap assembly, one end of the horizontal long rod extends out of the combined bracket and is connected to a vertical short rod through a vertical pipe sleeve, and the vertical short rod is connected to the second clamping plate through a "U"-shaped bolt.

8. The field open-type warming test device according to claim 1, characterized in that: The second clamping plate is an angled clamping plate, which is an obtuse-angle "V"-shaped panel as a whole. One page is provided with grooves and holes for connecting the connecting rod assembly, and the other page is provided with a pair of centrally symmetrical arc-shaped hole rails for matching another "U"-shaped bolt to connect the canopy temperature sensor. The angle between the sensor probe of the canopy temperature sensor and the vertical is 38°~39°.

9. A method for installing a field open-type warming test device according to any one of claims 1 to 8, characterized in that: The installation method comprises the following steps: Select a rectangular temperature increase test area and dig a foundation pit at each of the four corners of the rectangular temperature increase test area; A wind pole foundation is arranged in the foundation pit, and one wind pole is respectively installed on the wind pole foundation; A plurality of first clamping plates are arranged at intervals on the wind poles, and the first clamping plates on each wind pole and located on the same horizontal plane form a mounting layer; The combined bracket is placed on the installation layer, and the infrared radiation heating component is hung below the combined bracket to form a triangular heating lamp group, and the projection area below the triangular position belongs to the heating core area; The connecting rod assembly is installed on the combined bracket, and the canopy temperature sensor is installed on the part of the connecting rod assembly located at the periphery of the combined bracket through the second clamping plate. The sensor probe is adjusted to face the heating core area of ​​the triangular heating lamp group by rotating the second clamping plate. The effective projection area of ​​the light beam of the canopy temperature sensor on the horizontal plane is elliptical and does not exceed the boundary of the rectangular warming test area below.

10. The field open-type warming test device according to any one of claims 1 to 8, characterized in that: Turn on the infrared radiation heating component to increase the temperature of the test area, measure the canopy temperature through the canopy temperature sensor, and transmit the data back to the data collector in the control cabinet to record the data in real time; The temperature increase amplitude is controlled by instructions, and the instructions at least include: setting the target temperature increase amplitude to be 2°C higher than the background temperature, and when the average temperature increase amplitude is greater than 2°C, automatically reducing the power of the infrared radiation heating component to reduce the temperature increase amplitude until the average temperature increase level returns to 2°C.

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