Heat preservation observation room of outdoor measuring weir in cold region and measuring weir

Abstract

The invention relates to the technical field of civil engineering, in particular to a heat preservation observation room of an open-air measuring weir in a cold region and the measuring weir. The heat preservation observation room comprises a heat preservation room, the heat preservation room is used for covering the upper portion of a measuring weir, the heat preservation room comprises a room body and heat preservation cover plates arranged on the periphery and the top face of the room body, a heating device and a heat preservation cover plate are arranged in the heat preservation room, and the heating device is used for heating the measuring weir to avoid freezing in the low-temperature state; and the thermal insulation cover plate is used for covering the upper end of the measuring weir. The heat preservation room can be used for blocking outside cold air, the heat preservation cover plate can be used for further reducing heat loss, providing a relatively stable temperature environment for the measuring weir and reducing the temperature variation amplitude, the internal heating device can heat the measuring weir in a low-temperature state, prevent the measuring weir from being frozen, guarantee normal work of the measuring weir and accurately capture the leakage amount, and the measuring weir is convenient to use. The problem that the outdoor measuring weir freezes in winter is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of civil engineering, and particularly relates to a heat-insulating observation room and a water measuring weir for an open-air water measuring weir in cold regions. Background Art

[0002] The "main battlefields" of future hydropower construction will shift to alpine and high-altitude regions. The climates in the northwest and northeast regions of China are cold. Compared with hydropower stations in the south, the safety monitoring means need to consider the influence of cold temperatures.

[0003] According to industry specifications, leakage volume monitoring is a necessary item for earth-rock dams. The size of the leakage volume has important index significance for evaluating the stability of earth-rock dams. A water measuring weir is a device that calculates the water volume passing through the weir mouth section per unit time by measuring the head of the weir crest. It is usually used for seepage monitoring of hydraulic structures such as dams and engineering slopes in hydropower stations or pumped storage power stations. It is generally installed in channels, flumes, and ditches. Common types of water measuring weirs include triangular weirs, rectangular weirs, and trapezoidal weirs.

[0004] In the open-air water measuring weirs commonly found in earth-rock dam projects, a water measuring weir is set at the overflow outlet to measure the seepage water of the dam by setting a drainage ditch or drainage pipe at the dam foundation. This is a common monitoring means for monitoring the leakage volume of earth-rock dams.

[0005] However, in cold regions, from November to March of the following year, a problem faced by the project area is that the climate is below zero for a long time, and the lowest temperature is even lower than -20°C. This causes problems such as the freezing of open-air water measuring weirs, the icing of drainage pipes, poor drainage of the dam foundation, and the inability to accurately capture the leakage volume. During this period, it is impossible to accurately evaluate the seepage water of the dam. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a heat-insulating observation room and a water measuring weir for an open-air water measuring weir in cold regions. The heat-insulating room can block external cold air, and the heat-insulating cover plate can further reduce heat dissipation, providing a relatively stable temperature environment for the water measuring weir, reducing the temperature change range. The internal heating device can heat the water measuring weir at low temperatures to prevent the water measuring weir from freezing, ensuring that the water measuring weir can work normally, accurately capturing the leakage volume, and solving the problem of freezing of open-air water measuring weirs in winter.

[0007] In response to the above technical problem, the technical solution provided by the present invention is a heat-insulating observation room for an open-air water measuring weir in cold regions, including a heat-insulating room, the heat-insulating room is used to cover the upper part of the water measuring weir, the heat-insulating room includes a room body and heat-insulating cover plates arranged around and on the top surface of the room body, a heating device and a heat-insulating cover plate are arranged inside the heat-insulating room, the heating device is used to heat the water measuring weir to avoid freezing at low temperatures, and the heat-insulating cover plate is used to cover the upper end of the water measuring weir.

[0008] Further, the heating device includes a heater and a storage battery which are electrically connected. A solar panel is provided on the top surface of the insulation house, and the solar panel is used to supply power to the storage battery.

[0009] Further, the heater is used to be attached to the side of the weir.

[0010] Further, a meteorological monitoring sensor is provided on the roof of the insulation house. The meteorological monitoring sensor is signal-connected to the heating device, and the meteorological monitoring sensor is used to automatically control the heating of the heating device according to the temperature state.

[0011] Further, the housing includes a concrete foundation, columns and top beams. The concrete foundation is respectively arranged at four places around the weir. An upward-extending column is installed on each concrete foundation, and a plurality of horizontally and vertically intersecting top beams are arranged at the top of the column.

[0012] Further, the insulation cover plate includes a fireproof rock wool insulation board. A white color steel plate is arranged on the inner side of the fireproof rock wool insulation board, and an engraved steel plate is arranged on the outer side. An electrostatic powder is sprayed on the surface layer of the engraved steel plate.

[0013] Further, the insulation cover board includes a polyurethane insulation board. EVA waterproof boards are respectively arranged on the inner and outer sides of the polyurethane insulation board.

[0014] Further, the polyurethane insulation board is in a U shape with the opening facing downward. The polyurethane insulation board covers the upper end of the weir, and its inner side fits against the outer wall of the weir. The insulation cover board further includes a reinforced concrete cover board which is arranged inside the polyurethane insulation board and covers the upper end of the weir.

[0015] In view of the above technical problems, the technical solution provided by the present invention is also a weir, which includes a weir body, a filter screen, an artificial measuring scale and a weir plate arranged in sequence along the extending direction of the weir body. It further includes an insulation observation house for an open-air weir in a cold region. The insulation observation house includes an insulation house which is used to cover the upper part of the weir. The insulation house includes a housing and an insulation cover plate arranged around and on the top surface of the housing. A heating device and an insulation cover board are arranged inside the insulation house. The heating device is used to heat the weir to avoid icing in a low-temperature state, and the insulation cover board is used to cover the upper end of the weir.

[0016] Further, the heating device includes a heater and a storage battery which are electrically connected. A solar panel is provided on the top surface of the insulation house, and the solar panel is used to supply power to the storage battery.

[0017] Further, the heater is used to be attached to the side of the weir.

[0018] Furthermore, a meteorological monitoring sensor is provided on the roof of the heat preservation house. The meteorological monitoring sensor is signal-connected to the heating device and is used to automatically control the heating of the heating device according to the temperature state.

[0019] Furthermore, the housing body includes a concrete foundation, columns and top beams. The concrete foundation is respectively arranged at one place around the water measuring weir. An upward-extending column is installed on each concrete foundation, and multiple top beams intersecting horizontally and vertically are arranged at the top of the column.

[0020] Furthermore, the heat preservation cover board includes a fireproof rock wool heat preservation board. A white color steel plate is arranged on the inner side of the fireproof rock wool heat preservation board, and an engraved steel plate is arranged on the outer side. An electrostatic powder is sprayed on the surface layer of the engraved steel plate.

[0021] Furthermore, the heat preservation cover plate includes a polyurethane heat preservation board, and EVA waterproof boards are respectively arranged on the inner and outer sides of the polyurethane heat preservation board.

[0022] Furthermore, the polyurethane heat preservation board is in a U shape with the opening facing downwards. The polyurethane heat preservation board covers the upper end of the water measuring weir, and its inner side is attached to the outer wall of the water measuring weir. The heat preservation cover plate further includes a reinforced concrete cover plate, and the reinforced concrete cover plate is located inside the polyurethane heat preservation board and covers the upper end of the water measuring weir.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] (1) The heat preservation house can block the outside cold air, and the heat preservation cover plate can further reduce the heat loss, providing a relatively stable temperature environment for the water measuring weir, reducing the temperature change range. The internal heating device can heat the water measuring weir in a low-temperature state, prevent the water measuring weir from freezing, ensure that the water measuring weir can work normally, accurately capture the leakage volume, and solve the problem of the open-air water measuring weir freezing in winter.

[0025] (2) Powered by solar panels and storage batteries, on the one hand, it can achieve the sustainable utilization of energy, reduce the dependence on traditional power sources, and facilitate modular layout. On the other hand, in cold regions, especially in remote hydropower construction areas, the power supply may be inconvenient, and the solar power supply method is more feasible and economical.

[0026] (3) The heater is attached to the side of the water measuring weir, which can transfer heat to the water measuring weir more directly and efficiently, quickly increase the temperature of the water measuring weir, and prevent freezing.

[0027] (4) The meteorological monitoring sensor automatically controls the heating device to heat according to the real-time temperature, without the need for frequent manual intervention. When the temperature is lower than the set threshold, the heating is automatically started, avoiding the icing of the water measuring weir caused by untimely manual monitoring, ensuring the stable operation of the water measuring weir throughout the cold season, improving the timeliness and accuracy of the work, and achieving the purpose of automatic measurement, unattended operation, and remote control of the water measuring weir.

[0028] (5) The fireproof rock wool insulation board has excellent heat insulation performance, effectively preventing heat dissipation. The white color steel plate and the embossed steel plate enhance the structural strength of the insulation cover board, and the electrostatic powder on the surface of the embossed steel plate can increase the aesthetic degree and durability. At the same time, the fireproof performance of the fireproof rock wool insulation board can improve the safety of the insulation room and prevent fire hazards.

[0029] (6) The polyurethane insulation board has good heat insulation performance. The EVA waterproof boards on its inner and outer sides can prevent moisture intrusion, avoid the reduction of the heat insulation effect due to moisture absorption of the insulation material, and at the same time protect the water measuring weir from moisture erosion and extend its service life.

[0030] (7) The U-shaped polyurethane insulation board fits the outer wall of the water measuring weir, providing good heat insulation effect and blocking part of the external cold air. The reinforced concrete cover plate further enhances the heat insulation effect, and its strength can prevent the damage of the water measuring weir by external forces, providing double protection to ensure the normal operation of the water measuring weir in the cold environment. Description of the Drawings

[0031] Figure 1 is the longitudinal sectional view of a heat-insulated observation room for an open-air water measuring weir in cold regions in Embodiment 1 of the present invention.

[0032] Figure 2 is Figure 1 the sectional view A-A in

[0033] Figure 3 is Figure 2 the sectional view B-B in

[0034] Figure 4 is the plan sectional view of a heat-insulated observation room for an open-air water measuring weir in cold regions in Embodiment 1 of the present invention.

[0035] Figure 5 is the sectional view of the insulation cover board in Embodiment 1 of the present invention.

[0036] In the figure: 1. Meteorological monitoring sensor; 2. Solar panel; 3. Lightning rod; 4. Filter screen; 5. Manual measuring scale; 6. Weir plate of water measuring weir; 7. Column; 8. Top beam; 9. Thermal insulation cover plate; 91. Fireproof rock wool thermal insulation board; 92. White steel plate; 93. Carved steel plate; 10. EVA waterproof board; 11. Polyurethane thermal insulation board; 12. Concrete foundation; 13. Display screen; 14. Door; 15. Heater; 16. Thermal insulation cover board; 17. Reinforced concrete cover board; 18. Weir body; 19. Water collecting steel pipe; 20. Thermal insulation housing section; 21. Cover board section. Detailed implementation mode

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application: Specific embodiment 1:

[0039] Refer to Figures 1 to 5 , a water measuring weir of the present invention includes a weir body 18. The upstream side of the weir body 18 is connected to a water collecting steel pipe 19 for receiving water. A filter screen 4, a manual measuring scale 5 and a weir plate 6 of the water measuring weir are sequentially arranged in the middle groove of the weir body 18 along the extending direction of the weir body 18.

[0040] As Figure 1 shown, in this embodiment, the water measuring weir further includes a thermal insulation observation room for an open-air water measuring weir (hereinafter referred to as the thermal insulation observation room) arranged on the weir body 18. The thermal insulation observation room includes a thermal insulation housing, and the thermal insulation housing is used to cover the weir body 18 of the water measuring weir. Specifically, the thermal insulation housing includes a housing body 22 and a thermal insulation cover plate 9 arranged around and on the top surface of the housing body 22. A heating device and a thermal insulation cover board 16 are arranged inside the thermal insulation housing. The heating device is used to heat the water measuring weir to avoid icing in a low-temperature state, and the thermal insulation cover board 16 is used to cover the upper end of the water measuring weir.

[0041] Specifically, in this embodiment, a notch (not shown in the figure) adapted to the water collecting steel pipe 19 is opened on the upstream side of the thermal insulation housing. The upstream side of the thermal insulation housing covers the outlet of the water collecting steel pipe 19. An opening adapted to the weir body 18 is opened on the downstream side of the thermal insulation housing. The thermal insulation housing covers the filter screen, the manual measuring scale 5 and the weir plate 6 of the water measuring weir inside the weir body 18 along the length direction, and the downstream side of the weir body 18 is exposed outside the thermal insulation housing. The length of the thermal insulation cover board 16 is adapted to the length of the weir body 18, and the downstream side of the thermal insulation cover board 16 is exposed outside the thermal insulation housing. Therefore, in the length direction, the entire thermal insulation observation room is divided into a thermal insulation housing section 20 and a cover board section 21. While ensuring the thermal insulation effect, the material cost is saved.

[0042] In this embodiment, the heating device includes a heater 15 and a storage battery which are electrically connected. A solar panel 2 is provided on the top surface of the heat preservation room, and the solar panel 2 is used to supply power to the storage battery. The heater 15 heats the water weir by the electric energy provided by the storage battery to prevent the water weir from freezing. The solar panel 2 absorbs solar energy and converts it into electric energy and stores it in the storage battery. On the one hand, sustainable utilization of energy can be achieved, dependence on traditional power sources can be reduced, and modular layout is facilitated. On the other hand, in cold regions, especially in remote areas for hydropower construction, power supply may be inconvenient, and the solar power supply method is more feasible and economical. Of course, in other embodiments, when the actual use requirements are met, external cables can also be used for power supply. In this embodiment, the heater 15 is an electric heater.

[0043] In this embodiment, preferably, as Figure 4 shown, the heater 15 is used to be attached to the side surface of the weir body 18 of the water weir. It can transfer heat to the water weir more directly and efficiently, quickly raise the temperature of the water weir, and prevent icing. In this embodiment, the heater 15 is only arranged on one side of the water weir. In other embodiments, according to actual needs, heaters 15 can be arranged on both sides of the weir body 18. At the same time, according to actual heating requirements, a plurality of heaters 15 can be arranged at intervals along the length direction of the weir body 18 to meet the need for rapid temperature rise.

[0044] In this embodiment, preferably, a meteorological monitoring sensor 1 is further provided on the roof of the heat preservation room. The meteorological monitoring sensor 1 can monitor meteorological information such as temperature, humidity, and air pressure in real time. The meteorological monitoring sensor 1 is signal-connected to the heating device, and the meteorological monitoring sensor 1 is used to automatically control the heating of the heating device according to the temperature state. This setting eliminates the need for frequent manual intervention. When the temperature is lower than the set threshold, heating is automatically started to prevent the water weir from icing due to untimely manual monitoring, ensuring the stable operation of the water weir throughout the cold season, improving the timeliness and accuracy of work, and achieving the purpose of automatic measurement, unattended operation, and remote control of the water weir.

[0045] Specifically, in this embodiment, a data monitoring module (not shown in the figure) is provided in the heat preservation room. A display screen 13 capable of monitoring the weather is installed on the inner wall of the heat preservation room. Devices such as a rain gauge and a lightning rod 3 are also provided on the roof. The monitoring data of the meteorological monitoring sensor 1 and the rain gauge are stored in the data card of the data monitoring module through a communication cable.

[0046] The data monitoring module includes an electric control box, which is used to realize the function of human-machine information exchange and automatically turn on or off the heater 1515 at regular intervals. Specifically, the electric control box is connected to the heater 15, and the electric control box is connected to the rear control software through a communication system. Through mature data transmission methods such as wireless bridges or Ethernet optical cables, the on-site and rear communications are effectively connected. With this setting, the heater 15 can be remotely controlled or remotely controlled at regular intervals, and while measuring the seepage flow of the water weir, meteorological data such as rainfall, air pressure, temperature, and humidity can be obtained.

[0047] Specifically, in this embodiment, the housing 22 includes a concrete foundation 12, columns 7, and a top beam 8. The concrete foundation 12 is used to be provided at each of the four sides of the water weir. An upward-extending column 7 is installed on each concrete foundation 12, and multiple top beams 8 that intersect horizontally and vertically are provided at the top of the column 7. A heat preservation cover plate 9 is installed between adjacent columns 7 and at the upper end of the top beam 8.

[0048] Preferably, in this embodiment, as Figure 5 shown, the heat preservation cover plate 9 includes a fireproof rock wool heat preservation board 91. A white color steel plate is provided on the inner side of the fireproof rock wool heat preservation board 91, and a carved steel plate 93 is provided on the outer side. An electrostatic powder is sprayed on the surface layer of the carved steel plate 93. Specifically, the fireproof rock wool heat preservation board 91 adopts an A-level fireproof rock wool heat preservation board 91.

[0049] The fireproof rock wool heat preservation board 91 has excellent heat preservation and heat insulation performance, effectively preventing heat loss. The white color steel plate and the carved steel plate 93 enhance the structural strength of the heat preservation cover plate 9, and the electrostatic powder on the surface layer of the carved steel plate 93 can increase the aesthetics and durability. At the same time, the fireproof performance of the fireproof rock wool heat preservation board 91 can improve the safety of the heat preservation room and prevent potential fire hazards.

[0050] Preferably, in this embodiment, as Figure 2 shown, the heat preservation cover plate 16 includes a polyurethane heat preservation board 11, and EVA waterproof boards 10 are respectively provided on the inner and outer sides of the polyurethane heat preservation board 11. The polyurethane heat preservation board 11 has good heat preservation performance, and the EVA waterproof boards on its inner and outer sides can prevent moisture intrusion, avoid the reduction of the heat preservation effect due to moisture absorption of the heat preservation material, and at the same time protect the water weir from moisture erosion and extend its service life.

[0051] Specifically, in this embodiment, the polyurethane insulation board 11 is in a U shape with the opening facing downwards. The polyurethane insulation board 11 covers the upper end of the water measuring weir, and its inner side fits the outer wall of the water measuring weir. Its lower end fits the bottom surface of the insulation house. The insulation cover plate 16 further includes a reinforced concrete cover plate 17. The reinforced concrete cover plate 17 is inside the polyurethane insulation board 11 and covers the upper end of the water measuring weir. And an EVA waterproof board 10 is provided at the lower end of the reinforced concrete cover plate 17. Setting the U-shaped polyurethane insulation board 11 to fit the outer wall of the water measuring weir provides a good heat preservation effect and can block part of the external cold air. The reinforced concrete cover plate 17 further enhances the heat preservation effect, and at the same time its strength can prevent the external force from damaging the water measuring weir, and the double protection ensures the normal operation of the water measuring weir in a cold environment.

[0052] Of course, in other embodiments, when the heat preservation requirement is met, the insulation cover plate 16 can be provided with only the polyurethane insulation board 11 and the EVA waterproof boards 10 on its upper and lower sides. Or in other embodiments, the polyurethane insulation board 11 can be set to be strip-shaped and only cover the upper opening of the weir body 18 of the water measuring weir.

[0053] In this embodiment, the carved steel plate 93 uses a 3-mm-thick steel plate, and the surface is electrostatically powder-sprayed with antique paint. The A-level fireproof rock wool insulation board 91 has a thickness of 50 mm and is combined with the inner white steel plate 92 to form the main material of the roof, achieving the purposes of heat preservation, fire prevention, and moisture prevention. The surface is electrostatically powder-sprayed with antique paint, and a variety of colors and patterns are designed according to different requirements, ensuring the beauty of the observation room.

[0054] In this embodiment, the column 7 uses a stainless steel square steel column, with a cross-section length × width of 20 cm × 20 cm and a steel thickness of not less than 3 mm. The top beam 8 uses a stainless steel square steel beam, with a cross-section length × width of 20 cm × 20 cm and a steel thickness of not less than 3 mm. The thickness of the polyurethane insulation board 11 is 10 cm. A door 14 is also provided on the side of the insulation house, facilitating the entry and exit of the staff for operation.

[0055] The construction steps of this application are as follows:

[0056] 1. Purchase equipment such as the meteorological monitoring sensor 1, the display screen 13, the storage battery, and the heater 15 used. Among them, the heater 15 can be remotely controlled and remotely controlled in two ways. Purchase supporting accessories such as an electric control box, a timing controller, and background software. The electric control box mainly realizes the function of human-machine information exchange and realizes the function of automatically turning on and off the heater 15 regularly.

[0057] 2. Customize the insulation cover plate 9, the solar panel 2, and the column 7.

[0058] 3. After the manufacturer assembles the insulation house according to the drawings and transports it to the site, the roof assembly must be completed, and the roof surface including window sills, door frames, etc. must be assembled. Leave the installation positions for doors, windows, instruments, and electronic screens for on-site assembly.

[0059] 4. Level the foundation of the insulation house on-site and dig a rectangular foundation for burying the upright columns 7 at the four sides respectively. In this embodiment, the dimensions of the rectangular foundation are length × width × depth = 3.0 m × 3.0 m × 0.8 m.

[0060] 5. Pour the concrete foundation 12 into the rectangular foundation, and raise the top surface of the foundation by about 30 cm according to the floor size of the insulation house.

[0061] 6. Insert the four upright columns 7 into the concrete foundation 12 by about 50 cm and fix them firmly. Insert round steel bars with a diameter of 25 mm and a length of not less than 4 m into the concrete foundation 12 more than 2 m deep (drill holes for inserting steel bars if necessary) as the grounding steel bars for the lightning rod 3.

[0062] 7. Smooth the floor of the insulation house with cement mortar, lay floor tiles, and seal the gaps between the bottom of the roof surface and the floor with sealant, etc.

[0063] 8. Install doors, display screens 13, etc., and reinforce the interior of the roof. Leave cable protection pipes as needed, and fix equipment such as meteorological monitoring sensors 1, rain gauges, and lightning rods 3 at the four corners of the roof. Lead the communication cable into the insulation house and store it in the data card together with the monitoring data of the weir. Connect the electric control box to the heater 15, and connect the electric control box to the rear control software through the communication system. Effectively connect the on-site and the rear through mature data transmission methods such as wireless bridges or Ethernet optical cables.

[0064] In summary, for the weir of the present invention, the insulation house can block the outside cold air, and the insulation cover plate 16 can further reduce heat loss, providing a relatively stable temperature environment for the weir, reducing the temperature change range. The internal heating device can heat the weir in a low-temperature state to prevent the weir from freezing, ensuring that the weir can work normally and accurately capture the leakage volume.

[0065] It solves the measurement problems caused by the freezing of the open-air weir in winter and realizes the regular observation of the weir. Through the automated insulation observation house, in winter low-temperature weather, the heater 15 of the automated observation house automatically turns on to keep the temperature of the observation house above 0 °C to prevent the weir from freezing. At the same time, it meets the requirements of field anti-theft, lightning protection, and anti-smashing for precision instruments. The roof has functions such as lightning protection and power supply, which is convenient and safe.

[0066] An embodiment of a heat-insulating observation room for an open weir in a cold region according to the present invention. The heat-insulating observation room for an open weir in a cold region of the present invention has the same structure as the heat-insulating observation room for an open weir in a cold region in the above weir embodiment, and will not be described in detail herein.

[0067] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0068] In the description of the embodiments of the present application, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0069] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined.

Claims

1. A heat preservation observation room for an open-air water measuring weir in cold regions, characterized in that: The invention comprises a heat preservation room, which is used to cover the top of the water measuring weir. The heat preservation room comprises a room body and a heat preservation cover plate arranged around and on the top of the room body. A heating device and a heat preservation cover plate are arranged inside the heat preservation room. The heating device is used to heat the water measuring weir to avoid freezing in a low temperature state, and the heat preservation cover plate is used to cover the upper end of the water measuring weir.

2. The heat preservation observation room for the open-air water measuring weir in cold regions according to claim 1 is characterized in that: The heating device includes an electrically connected heater and a storage battery. The top surface of the heat preservation room is provided with a solar panel, and the solar panel is used to supply power to the storage battery.

3. The heat preservation observation room for open-air water measuring weir in cold regions according to claim 2 is characterized in that: The heater is used to be attached to the side of the water measuring weir.

4. The heat preservation observation room for open-air water measuring weir in cold regions according to claim 1 is characterized in that: A meteorological monitoring sensor is arranged on the roof of the heat preservation room, and the meteorological monitoring sensor is connected with the heating device signal. The meteorological monitoring sensor is used to automatically control the heating of the heating device according to the temperature state.

5. The heat preservation observation room for open-air water measuring weir in cold regions according to claim 1, characterized in that: The house body includes a concrete foundation, columns and top beams. The concrete foundation is used to be set at one location around the water measuring weir. A column extending upward is installed on each concrete foundation, and a plurality of cross-beams are set on the top of the column.

6. The heat preservation observation room for open-air water measuring weir in cold regions according to claim 1, characterized in that: The thermal insulation cover plate comprises a fireproof rock wool thermal insulation plate, the inner side of the fireproof rock wool thermal insulation plate is provided with a white colored steel plate, the outer side is provided with a carved steel plate, and the surface of the carved steel plate is sprayed with electrostatic powder.

7. The heat preservation observation room for the open-air water measuring weir in cold regions according to claim 1, characterized in that: The thermal insulation cover plate comprises a polyurethane thermal insulation plate, and the inner and outer sides of the polyurethane thermal insulation plate are respectively provided with EVA waterproof plates.

8. The heat preservation observation room for the open-air water measuring weir in cold regions according to claim 7, characterized in that: The polyurethane insulation board is in a U-shape with its opening facing downward. The polyurethane insulation board cover is arranged at the upper end of the water measuring weir, and its inner side is in contact with the outer wall of the water measuring weir. The insulation cover plate also includes a reinforced concrete cover plate, which is located on the inner side of the polyurethane insulation board and covers the upper end of the water measuring weir.

9. A water measuring weir, comprising a weir body, a filter screen arranged in sequence along the extension direction of the weir body, a manual measuring ruler and a water measuring weir plate, characterized in that: It also includes a heat-insulated observation room for an open-air water measuring weir in cold regions as described in any one of claims 1-8 above.

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