Weighing type water surface evaporation capacity measuring unit

Abstract

The invention discloses a weighing type water surface evaporation capacity measuring unit, which relates to the technical field of hydrological monitoring and comprises an evaporation barrel, an evaporation barrel bracket, a weighing module, a leveling bracket, supporting legs and a temperature adjusting module, the evaporation barrel is fixedly arranged above the evaporation barrel support, the evaporation barrel support is fixedly arranged above the weighing module, the weighing module is fixedly arranged above the leveling support, the leveling support is fixedly arranged above the supporting legs, and the temperature adjusting module is in heat transfer connection with the weighing module. The working temperature of the weighing module is adjusted through the temperature adjusting module, the influence of the working temperature on the weighing precision of the weighing module is reduced, and then the water surface evaporation capacity measuring precision is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hydrological monitoring, and in particular to a weighing-type water surface evaporation measurement unit. Background Art

[0002] Evaporation measurement is an important task in the field of hydrological monitoring. At present, the weighing type water surface evaporation measurement technology measures evaporation by sensing the change in water weight, and is widely used in the field of hydrological monitoring. However, the weighing accuracy of the weighing module is affected by the working environment temperature. In order to further improve the measurement accuracy of water surface evaporation, it is necessary to study the weighing type water surface evaporation measurement unit.

[0003] In the prior art, Chinese patent CN115574890A discloses a 20CM caliber weighing type evaporation measuring instrument, including a weighing instrument, a water storage cylinder is placed on the top of the weighing instrument, a protective cylinder is sleeved on the outside of the water storage cylinder, a fixing ring is sleeved on the top of the protective cylinder, and a protective device for protecting the top of the water storage cylinder is provided on the top of the fixing ring. This prior art is provided with a protective device, when leaves or debris fall on the protective net, the protective net can protect the top of the water storage cylinder, thereby preventing leaves or debris from falling on the water surface in the water storage cylinder. In addition, when leaves or debris are stuck on the protective net, the protective net can be repeatedly tightened and relaxed to allow the leaves and debris to be shaken off, thereby ensuring the normal operation of the water in the water storage cylinder.

[0004] However, the above-mentioned prior art does not consider the influence of the working temperature on the weighing accuracy of the weighing module. Especially when the working environment is in winter in the north or summer in the south, the weighing accuracy of the weighing module will be greatly reduced, and thus the measurement accuracy of water surface evaporation will be poor. Summary of the invention

[0005] The present application provides a weighing type water surface evaporation measurement unit, which is used to solve the problem that the prior art does not consider the influence of the working temperature on the weighing accuracy of the weighing module, resulting in poor water surface evaporation measurement accuracy.

[0006] On the one hand, the present application provides a weighing-type water surface evaporation measurement unit, including: an evaporation bucket, an evaporation bucket bracket, a weighing module, a leveling bracket, a supporting foot and a temperature adjustment module.

[0007] The evaporating barrel is fixedly arranged above the evaporating barrel bracket, the evaporating barrel bracket is fixedly arranged above the weighing module, the weighing module is fixedly arranged above the leveling bracket, the leveling bracket is fixedly arranged above the supporting foot, and the temperature regulating module is connected to the weighing module by heat transfer.

[0008] The evaporation barrel is used for containing water.

[0009] The evaporation barrel bracket is used to support the evaporation barrel.

[0010] The weighing module is used to measure the weight of the evaporation barrel support, the evaporation barrel and the water in the barrel.

[0011] The leveling bracket is used to adjust the horizontal angle of the evaporation barrel.

[0012] The supporting feet are used to support the leveling bracket, the weighing module, the evaporating barrel bracket, and the evaporating barrel.

[0013] The temperature regulating module is used to regulate the working temperature of the weighing module.

[0014] In a possible implementation, the temperature adjustment module includes: a temperature monitoring unit and a temperature control unit.

[0015] The temperature monitoring unit is arranged inside the weighing module. The temperature control unit is connected to the weighing module through heat transfer and is electrically connected to the temperature monitoring unit.

[0016] The temperature control unit is configured such that when the temperature monitoring unit detects that the operating temperature of the weighing module exceeds a preset temperature safety threshold range, the temperature control unit starts cooling or heating the weighing module so that the operating temperature of the weighing module falls within the preset temperature safety threshold range.

[0017] In a possible implementation, a protective barrel is disposed outside the evaporation barrel, and a top of the evaporation barrel is higher than a top of the protective barrel.

[0018] The evaporating barrel, the evaporating barrel bracket, the weighing module, the leveling bracket, and the supporting feet are all located inside the protective barrel, and the supporting feet are fixedly connected to the bottom of the protective barrel.

[0019] In a possible implementation, a water accumulation monitoring unit and a drain port are provided at the bottom of the protective barrel, the drain port is connected to a drain pipe, the drain pipe is provided with a drainage control unit, and the drainage control unit is electrically connected to the water accumulation monitoring unit.

[0020] The drainage control unit is configured such that when the water accumulation monitoring unit detects that the water level in the protective barrel reaches a preset water accumulation safety threshold, the drainage control unit starts the drainage pump to discharge the accumulated water from the drainage pipe, so that the water level in the protective barrel falls within the preset water accumulation safety threshold.

[0021] In a possible implementation, a rainproof eave is provided on the outer side of the top of the evaporation barrel.

[0022] The rainproof eaves are inclined outwardly and downwardly and cover the top of the protection barrel.

[0023] In a possible implementation, a water ring sleeve is sleeved on the outer side of the protection barrel.

[0024] In a possible implementation, the evaporation drum support includes: a supporting transverse plate and a plurality of supporting vertical plates.

[0025] The bottoms of several of the supporting vertical plates are fixedly connected to the tops of the supporting horizontal plates, the tops of several of the supporting vertical plates are fixedly connected to the bottom of the evaporating barrel, and the bottom of the supporting horizontal plate is fixedly connected to the top of the weighing module.

[0026] In a possible implementation, the leveling bracket includes: a leveling support plate, a plurality of telescopic rods, and a plurality of driving units.

[0027] The top of the leveling support plate is fixedly connected to the bottom of the weighing module, the bottom of the leveling support plate is fixedly connected to the tops of several telescopic rods, each telescopic rod is transmission-connected to a driving unit, and the bottoms of several driving units are hinged to the supporting feet.

[0028] In a possible implementation manner, a leveling monitoring unit and a leveling control unit are fixedly disposed inside the leveling support plate, and the leveling control unit is electrically connected to the leveling monitoring unit and the driving unit, respectively.

[0029] The leveling control unit is configured such that when the leveling monitoring unit detects that the horizontal angle of the leveling support plate reaches a preset horizontal safety threshold, the leveling control unit controls the driving unit to drive the telescopic rod to extend and retract up and down so that the horizontal angle of the leveling support plate falls within the preset horizontal safety threshold.

[0030] A weighing type water surface evaporation measurement unit in this application has the following advantages: The operating temperature of the weighing module is adjusted by the temperature regulating module, which reduces the influence of the operating temperature on the weighing accuracy of the weighing module, thereby improving the measurement accuracy of water surface evaporation.

[0031] It is proposed that when the temperature monitoring unit detects that the operating temperature of the weighing module exceeds a preset temperature safety threshold range, the temperature control unit starts cooling or heating the weighing module to make the operating temperature of the weighing module fall within the preset temperature safety threshold range. By selectively cooling or heating, the environmental adaptability and temperature control flexibility of the weighing module are improved.

[0032] A protective barrel is arranged on the outside of the proposed evaporation barrel, and the evaporation barrel, evaporation barrel bracket, weighing module, leveling bracket and supporting feet are all located inside the protective barrel, thereby avoiding the influence of factors such as rainfall, soil loss and plant growth on the components inside the protective barrel and improving the measurement stability.

[0033] It is proposed that when the water accumulation monitoring unit detects that the water level in the protective barrel has reached a preset water accumulation safety threshold, the drainage control unit starts the drainage pump to discharge the accumulated water from the drain pipe, so that the water level in the protective barrel falls within the preset water accumulation safety threshold, thereby avoiding the influence of the accumulated water on the various components inside the protective barrel and further improving the measurement stability.

[0034] The proposed rainproof eaves are inclined outward and downward and cover the top of the protection barrel, thereby avoiding measurement errors caused by rainwater or foreign matter falling into the protection barrel from the gap between the evaporation barrel and the protection barrel, and reducing the formation of water accumulation in the protection barrel.

[0035] It is proposed that when the leveling monitoring unit detects that the horizontal angle of the leveling support plate reaches a preset horizontal safety threshold, the leveling control unit controls the driving unit to drive the telescopic rod to extend and retract up and down, so that the horizontal angle of the leveling support plate falls within the preset horizontal safety threshold, thereby avoiding the tilting of the evaporation barrel mouth caused by ground subsidence or deformation, and improving the measurement accuracy of water surface evaporation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A structural schematic diagram of a weighing type water surface evaporation measurement unit provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of the evaporation drum support provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of the leveling bracket provided in an embodiment of the present application.

[0038] Description of reference numerals: 1-evaporation barrel, 2-evaporation barrel bracket, 3-weighing module, 4-leveling bracket, 5-support foot, 31-temperature adjustment module, 6-protection barrel, 61-water accumulation monitoring unit, 62-drain outlet, 11-rainproof eaves, 7-water ring sleeve, 21-support vertical plate, 22-support horizontal plate, 41-leveling support plate, 42-telescopic rod, 43-drive unit. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] like Figures 1 to 3 As shown, an embodiment of the present application provides a weighing type water surface evaporation measurement unit, including: an evaporation bucket 1, an evaporation bucket bracket 2, a weighing module 3, a leveling bracket 4, a supporting foot 5 and a temperature adjustment module 31.

[0041] The evaporating barrel 1 is fixedly arranged above the evaporating barrel bracket 2, the evaporating barrel bracket 2 is fixedly arranged above the weighing module 3, the weighing module 3 is fixedly arranged above the leveling bracket 4, the leveling bracket 4 is fixedly arranged above the supporting foot 5, and the temperature regulating module 31 is connected to the weighing module 3 by heat transfer.

[0042] The evaporation barrel 1 is used to contain water.

[0043] The evaporation barrel bracket 2 is used to support the evaporation barrel.

[0044] The weighing module 3 is used to measure the weight of the evaporation barrel support, the evaporation barrel and the water in the barrel.

[0045] The leveling bracket 4 is used to adjust the horizontal angle of the evaporation barrel.

[0046] The supporting feet 5 are used to support the leveling bracket 4 , the weighing module 3 , the evaporating barrel bracket 2 , and the evaporating barrel 1 .

[0047] The temperature regulating module 31 is used to regulate the working temperature of the weighing module 3 .

[0048] Specifically, in this embodiment, the evaporation barrel 1 adopts an E601B evaporation measurement barrel. In other possible embodiments, other types of evaporation measurement barrels may also be adopted.

[0049] Exemplarily, the temperature adjustment module 31 includes: a temperature monitoring unit and a temperature control unit.

[0050] The temperature monitoring unit is arranged inside the weighing module 3 , and the temperature control unit is connected to the weighing module 3 by heat transfer, and is electrically connected to the temperature monitoring unit.

[0051] The temperature control unit is configured such that when the temperature monitoring unit detects that the operating temperature of the weighing module 3 exceeds a preset temperature safety threshold range, the temperature control unit starts cooling or heating the weighing module 3 so that the operating temperature of the weighing module 3 falls within the preset temperature safety threshold range.

[0052] Specifically, in this embodiment, the temperature monitoring unit adopts a temperature sensor, and the temperature control unit adopts a semiconductor cooling sheet with a control circuit. One side of the semiconductor cooling sheet is attached to the outer surface of the weighing module 3, and the temperature safety threshold range is set to -10 to 40°C (this is because the temperature compensation of the weighing module 3 is generally limited to the range of -10 to 40°C). When the temperature sensor detects that the working temperature of the weighing module 3 is lower than -10°C, the temperature control unit controls the semiconductor cooling sheet to start heating (that is, the side facing away from the weighing module 3 absorbs heat from the air, and the side facing the weighing module 3 releases heat to the weighing module 3), so that the working temperature of the weighing module 3 rises to above -10°C; when the temperature sensor detects that the working temperature of the weighing module 3 is higher than 40°C, the temperature control unit controls the semiconductor cooling sheet to start cooling (it only needs to change the current direction of the semiconductor cooling sheet to the opposite direction of heating, at this time, the side facing the weighing module 3 absorbs heat from the weighing module 3, and the side facing away from the weighing module 3 releases heat to the air), so that the working temperature of the weighing module 3 drops below 40°C. In other possible embodiments, other temperature safety threshold ranges can also be set according to actual conditions.

[0053] Exemplarily, a protective barrel 6 is provided on the outer side of the evaporation barrel 1 , and the top of the evaporation barrel 1 is higher than the top of the protective barrel 6 .

[0054] The evaporation barrel 1 , the evaporation barrel bracket 2 , the weighing module 3 , the leveling bracket 4 , and the supporting foot 5 are all located inside the protective barrel 6 , and the supporting foot 5 is fixedly connected to the bottom of the protective barrel 6 .

[0055] Specifically, in this embodiment, there is a gap between the protective barrel 6 and the evaporation barrel 1. When the protective barrel 6 is tilted as a whole due to the unevenness of the civil construction foundation surface, the evaporation barrel 1 can be kept in a horizontal state by leveling the leveling bracket 4.

[0056] Exemplarily, a water accumulation monitoring unit 61 and a drain port 62 are provided at the bottom of the protective barrel 6 , the drain port 62 is connected to a drain pipe, the drain pipe is provided with a drain control unit, and the drain control unit is electrically connected to the water accumulation monitoring unit 61 .

[0057] The drainage control unit is configured such that when the water accumulation monitoring unit 61 detects that the water level in the protective barrel 6 reaches a preset water accumulation safety threshold, the drainage control unit starts the drainage pump to discharge the accumulated water from the drainage pipe, so that the water level in the protective barrel 6 falls within the preset water accumulation safety threshold.

[0058] Specifically, in this embodiment, the water accumulation monitoring unit 61 adopts a liquid level sensor, the drainage control unit adopts a drainage pump with a control circuit, and the water accumulation safety threshold is set to 5 cm (in other possible embodiments, other water accumulation safety thresholds can also be set according to actual conditions). When the liquid level sensor detects that the water level in the protective barrel 6 reaches 5 cm, the drainage control unit starts the drainage pump to discharge the accumulated water from the drain pipe, so that the water level in the protective barrel 6 is less than 5 cm.

[0059] Exemplarily, a rainproof eave 11 is provided on the outer side of the top of the evaporation barrel 1 .

[0060] The rainproof eaves 11 are inclined outward and downward and cover the top of the protection barrel 6 .

[0061] Specifically, in this embodiment, the surface of the rainproof eaves 11 is sprayed with a water-repellent material, so that rainwater will not adhere to the rainproof eaves 11 during rainfall. The provision of the rainproof eaves 11 avoids measurement errors caused by rainwater or foreign matter falling into the protective barrel 6 from the gap between the evaporation barrel 1 and the protective barrel 6, and reduces the formation of water accumulation in the protective barrel 6.

[0062] Exemplarily, a water ring sleeve 7 is sleeved on the outer side of the protection barrel 6 .

[0063] Specifically, in this embodiment, the protection barrel 6 and the water ring sleeve 7 are both installed in a pre-set ground foundation pit, so there is no need to consider whether the water ring sleeve 7 will slide down when it is sleeved on the outside of the protection barrel 6. The protection barrel 6 and the water ring sleeve 7 are both supported by the ground foundation pit, and the top of the water ring sleeve 7 is lower than the bottom of the rainproof eaves 11. The water ring sleeve 7 is used to reduce the influence of solar radiation and splashing water on evaporation, and is generally composed of four identical arc-shaped water grooves with a circumference slightly smaller than a quarter of the circumference. The water surface in the water ring sleeve 7 is close to the water surface in the evaporation barrel 1 to compensate for the loss of the evaporation barrel 1 splashing outward during heavy rainfall.

[0064] like Figure 2 As shown, exemplarily, the evaporation barrel support 2 includes: a supporting transverse plate 22 and a plurality of supporting vertical plates 21 .

[0065] The bottoms of several of the supporting vertical plates 21 are fixedly connected to the tops of the supporting horizontal plates 22 , the tops of several of the supporting vertical plates 21 are fixedly connected to the bottom of the evaporation barrel 1 , and the bottom of the supporting horizontal plates 22 is fixedly connected to the top of the weighing module 3 .

[0066] Specifically, in the present embodiment, the number of the supporting uprights 21 is three, and they are arranged in a circular array to form a stable support for the evaporation barrel 1 , and the top shape of the supporting uprights 21 is adapted to the bottom shape of the evaporation barrel 1 .

[0067] like Figure 3 As shown, exemplarily, the leveling bracket 4 includes: a leveling support plate 41 , a plurality of telescopic rods 42 and a plurality of driving units 43 .

[0068] The top of the leveling support plate 41 is fixedly connected to the bottom of the weighing module 3, and the bottom of the leveling support plate 41 is fixedly connected to the tops of several telescopic rods 42. Each telescopic rod 42 is transmission-connected to a driving unit 43, and the bottoms of several driving units 43 are hinged to the supporting feet 5.

[0069] Specifically, in this embodiment, there are three telescopic rods 42 and three driving units 43, which are arranged in a circular array to form a stable support for the leveling support plate 41, and then to form a stable support for the weighing module 3, the evaporating barrel bracket 2, and the evaporating barrel 1. Since the leveling bracket 4, the weighing module 3, the evaporating barrel bracket 2, and the evaporating barrel 1 are all fixedly connected, as long as the leveling support plate 41 is in a horizontal state, the evaporating barrel 1 can be ensured to be in a horizontal state.

[0070] Exemplarily, a leveling monitoring unit and a leveling control unit are fixedly disposed inside the leveling support plate 41 , and the leveling control unit is electrically connected to the leveling monitoring unit and the driving unit 43 , respectively.

[0071] The leveling control unit is configured such that when the leveling monitoring unit detects that the horizontal angle of the leveling support plate 41 reaches a preset horizontal safety threshold, the leveling control unit controls the driving unit 43 to drive the telescopic rod 42 to extend and retract up and down, so that the horizontal angle of the leveling support plate 41 falls within the preset horizontal safety threshold.

[0072] Specifically, in this embodiment, the leveling monitoring unit uses a horizontal angle sensor, the telescopic rod 42 uses an electric lead screw, the driving unit 43 uses a reduction motor, the support foot 5 uses a universal support foot, and the horizontal safety threshold is set to 0.2°. When the horizontal angle sensor detects that the horizontal angle of the leveling support plate 41 reaches 0.2°, the leveling control unit controls the reduction motor to drive the electric lead screw to extend and retract up and down, so that the horizontal angle of the leveling support plate 41 is less than 0.2° or even becomes 0°. In other possible embodiments, other horizontal safety thresholds can also be set according to actual conditions.

[0073] In a possible embodiment, a water replenishment and overflow unit is connected to the evaporation bucket 1. A liquid level gauge is arranged inside the evaporation bucket 1. The water replenishment and overflow unit includes a water tank and a water replenishment and overflow control pump (a metering peristaltic pump is used in this embodiment). The water replenishment and overflow unit is provided with upper and lower water levels corresponding to the evaporation bucket 1. When the water level in the evaporation bucket 1 is lower than the lower water level, the water replenishment and overflow control pump replenishes water from the water tank to the evaporation bucket 1; when the water level in the evaporation bucket 1 is higher than the upper water level, the water replenishment and overflow control pump drains water from the evaporation bucket 1 to the water tank, realizing positive replenishment and reverse drainage while also being able to measure the water replenishment volume and drainage volume.

[0074] In a possible embodiment, the weighing module 3, the leveling support 4, the temperature adjustment module 31, the water accumulation monitoring unit 61, and the drainage control unit are all powered by solar energy.

[0075] In the embodiment of the present application, the temperature adjustment module 31 adjusts the working temperature of the weighing module 3, reducing the influence of the working temperature on the weighing accuracy of the weighing module 3, and thus improving the measurement accuracy of the water surface evaporation amount.

[0076] When the temperature monitoring unit monitors that the working temperature of the weighing module 3 exceeds the preset temperature safety threshold range, the temperature control unit starts cooling or heating for the weighing module 3, so that the working temperature of the weighing module 3 falls within the preset temperature safety threshold range. By selectively cooling or heating, the environmental adaptability and temperature control flexibility of the weighing module 3 are improved.

[0077] A protective bucket 6 is arranged outside the evaporation bucket 1. The evaporation bucket 1, the evaporation bucket support 2, the weighing module 3, the leveling support 4, and the support feet 5 are all located inside the protective bucket 6, avoiding the influence of factors such as rainfall, soil erosion, and plant growth on the components inside the protective bucket 6, and improving the measurement stability.

[0078] When the water accumulation monitoring unit 61 monitors that the water accumulation level in the protective bucket 6 reaches the preset water accumulation safety threshold, the drainage control unit starts the drainage pump to drain the accumulated water from the drain pipe, so that the water accumulation level in the protective bucket 6 falls within the preset water accumulation safety threshold, avoiding the influence of the accumulated water on the components inside the protective bucket 6, and further improving the measurement stability.

[0079] A rainproof eaves 11 is proposed. The rainproof eaves 11 slopes outward and downward and covers the top of the protective bucket 6, avoiding measurement errors caused by rainwater or foreign objects falling into the protective bucket 6 from the gap between the evaporation bucket 1 and the protective bucket 6, and at the same time reducing the formation of accumulated water in the protective bucket 6.

[0080] It is proposed that when the leveling monitoring unit detects that the horizontal angle of the leveling support plate 41 reaches a preset horizontal safety threshold, the leveling control unit controls the driving unit 43 to drive the telescopic rod 42 to extend and retract up and down, so that the horizontal angle of the leveling support plate 41 falls within the preset horizontal safety threshold, thereby avoiding the tilting of the mouth of the evaporation barrel 1 caused by ground subsidence or deformation, and improving the measurement accuracy of water surface evaporation.

[0081] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0082] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A weighing type water surface evaporation measurement unit, characterized in that: include: Evaporation barrel, evaporation barrel bracket, weighing module, leveling bracket, support feet and temperature adjustment module; The evaporating barrel is fixedly arranged above the evaporating barrel bracket, the evaporating barrel bracket is fixedly arranged above the weighing module, the weighing module is fixedly arranged above the leveling bracket, the leveling bracket is fixedly arranged above the supporting foot, and the temperature regulating module is connected to the weighing module by heat transfer; The evaporation barrel is used to hold water; The evaporation barrel bracket is used to support the evaporation barrel; The weighing module is used to measure the weight of the evaporation barrel bracket, the evaporation barrel and the water in the barrel; The leveling bracket is used to adjust the horizontal angle of the evaporation barrel; The supporting feet are used to support the leveling bracket, the weighing module, the evaporating barrel bracket, and the evaporating barrel; The temperature regulating module is used to regulate the working temperature of the weighing module.

2. A weighing type water surface evaporation measurement unit according to claim 1, characterized in that: The temperature adjustment module includes: a temperature monitoring unit and a temperature control unit; The temperature monitoring unit is arranged inside the weighing module, the temperature control unit is connected with the weighing module by heat transfer, and is electrically connected with the temperature monitoring unit; The temperature control unit is configured such that when the temperature monitoring unit detects that the operating temperature of the weighing module exceeds a preset temperature safety threshold range, the temperature control unit starts cooling or heating the weighing module so that the operating temperature of the weighing module falls within the preset temperature safety threshold range.

3. A weighing type water surface evaporation measurement unit according to claim 1, characterized in that: A protective barrel is arranged outside the evaporation barrel, and the top of the evaporation barrel is higher than the top of the protective barrel; The evaporating barrel, the evaporating barrel bracket, the weighing module, the leveling bracket, and the supporting feet are all located inside the protective barrel, and the supporting feet are fixedly connected to the bottom of the protective barrel.

4. A weighing type water surface evaporation measurement unit according to claim 3, characterized in that: A water accumulation monitoring unit and a drain outlet are provided at the bottom of the protective barrel, the drain outlet is connected to a drain pipe, the drain pipe is provided with a drainage control unit, and the drainage control unit is electrically connected to the water accumulation monitoring unit; The drainage control unit is configured such that when the water accumulation monitoring unit detects that the water level in the protective barrel reaches a preset water accumulation safety threshold, the drainage control unit starts the drainage pump to discharge the accumulated water from the drainage pipe, so that the water level in the protective barrel falls within the preset water accumulation safety threshold.

5. A weighing type water surface evaporation measurement unit according to claim 3, characterized in that: A rainproof eave is arranged on the outer side of the top of the evaporation barrel; The rainproof eaves are inclined outwardly and downwardly and cover the top of the protection barrel.

6. A weighing type water surface evaporation measurement unit according to claim 3, characterized in that: The outer side of the protection barrel is sleeved with a water ring sleeve.

7. A weighing type water surface evaporation measurement unit according to claim 1, characterized in that: The evaporation barrel support comprises: a supporting horizontal plate and a plurality of supporting vertical plates; The bottoms of several of the supporting vertical plates are fixedly connected to the tops of the supporting horizontal plates, the tops of several of the supporting vertical plates are fixedly connected to the bottom of the evaporating barrel, and the bottom of the supporting horizontal plate is fixedly connected to the top of the weighing module.

8. A weighing type water surface evaporation measurement unit according to claim 1, characterized in that: The leveling bracket comprises: a leveling support plate, a plurality of telescopic rods and a plurality of driving units; The top of the leveling support plate is fixedly connected to the bottom of the weighing module, the bottom of the leveling support plate is fixedly connected to the tops of several telescopic rods, each telescopic rod is transmission-connected to a driving unit, and the bottoms of several driving units are hinged to the supporting feet.

9. A weighing type water surface evaporation measurement unit according to claim 8, characterized in that: A leveling monitoring unit and a leveling control unit are fixedly arranged inside the leveling support plate, and the leveling control unit is electrically connected to the leveling monitoring unit and the driving unit respectively; The leveling control unit is configured such that when the leveling monitoring unit detects that the horizontal angle of the leveling support plate reaches a preset horizontal safety threshold, the leveling control unit controls the driving unit to drive the telescopic rod to extend and retract up and down so that the horizontal angle of the leveling support plate falls within the preset horizontal safety threshold.

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