High-temperature-resistant explosion-proof wind speed transmitter

Abstract

The invention belongs to the technical field of wind speed transmitters, and particularly relates to a high-temperature-resistant explosion-proof wind speed transmitter which comprises a wind speed transmitter body and a metal flange plate used for fixing the wind speed transmitter body, a conical protection barrel is fixedly connected to the upper surface of the metal flange plate, and a sealing cover mechanism is arranged at the top of the conical protection barrel. A plurality of mounting holes are formed in the outer wall of the bottom end of the conical protective barrel, semiconductor chilling plates are fixedly connected to the hole walls of the mounting holes in a sealed mode, and a water storage cover used for cooling the heat dissipation sides of the semiconductor chilling plates is fixedly connected to the outer wall of the conical protective barrel. The wind speed transmitter not only has the functions of high temperature resistance, explosion prevention and static prevention, but also has the effect of improving the anti-electromagnetic interference of the wind speed transmitter, so that the protection capability of the wind speed transmitter is improved, the measurement precision of the wind speed transmitter can be effectively guaranteed, the service life of the wind speed transmitter is prolonged, and the reliability and the safety of the wind speed transmitter are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wind speed transmitters, and in particular relates to a high temperature resistant and explosion-proof wind speed transmitter. Background Art

[0002] A wind speed transmitter is an instrument used to measure wind speed and convert it into a standard electrical signal output. It uses thermal, mechanical or ultrasonic principles to sense wind speed changes through sensors. After amplification and filtering by the signal processing circuit, the wind speed information is transmitted to the display instrument or control system through the output interface. It is widely used in the fields of meteorology, aerospace and industrial production. For example, the patent authorization announcement number is CN217543149U, which discloses a high temperature resistant and explosion-proof wind speed transmitter.

[0003] At present, the wind speed transmitter has the problem of insufficient protection during use. When used in a high temperature and dusty environment, unexpected situations are prone to occur. For example, in a high temperature environment, the wind speed transmitter will experience material property changes, electronic component aging, thermal expansion stress, and heat dissipation difficulties. These situations will not only reduce the measurement accuracy of the wind speed transmitter, but also have an adverse effect on its service life and reliability. When using the wind speed transmitter in a dusty environment, as time goes by, the insulation layer at the bend where the cable is connected to the wind speed transmitter is prone to cracking due to the influence of gravity and external force, thereby exposing the conductive core inside the cable. Once the conductive cores of different lines come into contact, electric sparks are easily generated. In addition, when the internal circuit of the wind speed transmitter fails, electric sparks are also easily generated. These electric sparks can easily ignite the dust in the environment, causing a dust explosion, which seriously affects the safety of the use of the wind speed transmitter.

[0004] To this end, we propose a high temperature resistant and explosion-proof wind speed transmitter to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a high temperature resistant and explosion-proof wind speed transmitter in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: a high temperature resistant explosion-proof wind speed transmitter, comprising a wind speed transmitter body and a metal flange for fixing the wind speed transmitter body, a conical protective cylinder is fixedly connected to the upper surface of the metal flange, and a sealing mechanism is provided on the top of the conical protective cylinder; The outer wall of the bottom end of the conical protective cylinder is provided with a plurality of mounting holes, and the hole walls of the mounting holes are sealed and fixedly connected with semiconductor refrigeration plates, the outer wall of the conical protective cylinder is fixedly connected with a water storage cover for cooling the heat dissipation side of the semiconductor refrigeration plates, the inner side of the water storage cover is filled with a cooling water layer, the bottom end of the water storage cover is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected with a water level monitoring mechanism, and the top outer wall of the water storage cover is fixedly sleeved with an anti-static mechanism; The inner wall of the conical protective cylinder is fixedly connected with an airflow circulation mechanism for heat dissipation of the wind speed transmitter body; A PLC controller is fixedly connected to the outer wall of the control box of the wind speed transmitter body. A through hole is opened on the outer wall of the control box of the wind speed transmitter body, and a temperature sensor is fixedly connected to the hole wall of the through hole. The cable of the temperature sensor is electrically connected to the input end of the PLC controller.

[0007] In the above-mentioned high-temperature resistant and explosion-proof wind speed transmitter, the sealing mechanism includes an annular cover plate movably connected to the inner wall of the conical protective tube, the inner wall of the annular cover plate is fixedly connected with an acrylic transparent plate, the outer wall of the annular cover plate is fixedly sleeved with a retaining ring, the outer wall of the annular cover plate and the lower surface of the retaining ring are jointly embedded with a groove, and the groove wall of the groove is jointly fixedly connected with a sealing ring, the upper surface of the conical protective tube is fixedly connected with a plurality of spring clips, and the side of the spring clip close to the retaining ring is fixedly connected with a limiting protrusion.

[0008] In the above-mentioned high-temperature resistant and explosion-proof wind speed transmitter, the water level monitoring mechanism includes an insulating cylinder fixedly embedded in the water storage cover, the inner wall of the insulating cylinder is fixedly connected with a conductive ring, the top inner wall of the insulating cylinder is movably connected with a hollow rod, the top of the hollow rod is fixedly connected with a hollow floating block, the bottom end of the hollow rod is fixedly connected with a power-carrying sheet, the inner wall of the insulating cylinder is fixedly connected with a protective sponge block, and the top of the annular cover plate is fixedly embedded with a buzzer alarm.

[0009] In the above-mentioned high temperature resistant explosion-proof wind speed transmitter, a sealing film for waterproofing the conductive ring is fixedly sleeved on the rod wall of the hollow rod, and the outer wall of the sealing film is fixedly connected to the inner wall of the insulating tube.

[0010] In the above-mentioned high-temperature resistant and explosion-proof wind speed transmitter, the anti-static mechanism includes a supporting mesh ring fixedly connected to the outer wall of the top end of the conical protective tube, the outer wall of the supporting mesh ring is fixedly connected to a diversion hood for water vapor diversion, and the top outer wall of the diversion hood is fixedly connected to a guide hood.

[0011] In the above-mentioned high-temperature resistant and explosion-proof wind speed transmitter, the airflow circulation mechanism includes a connecting ring fixedly connected to the inner wall of the conical protective tube, the inner wall of the connecting ring is fixedly connected to the rod wall of the wind speed transmitter body, and the outer wall at the edge of the connecting ring is provided with a plurality of air holes, and the air holes are located below the cooling side of the semiconductor refrigeration plate, the top of the connecting ring is fixedly connected to a micro air pump, the outer wall of the micro air pump and the rod wall of the wind speed transmitter body are connected to a fixing frame, the air inlet end of the micro air pump is fixedly connected to an air inlet pipe, the top of the air inlet pipe is fixedly connected to the outer wall of the top control box of the wind speed transmitter body, the outer wall of the top control box of the wind speed transmitter body is provided with an air inlet hole, and the hole wall of the air inlet hole is fixedly connected to a mesh.

[0012] In the above-mentioned high temperature resistant explosion-proof wind speed transmitter, the outer walls of the conical protective tube and the water storage cover near the wire joint of the wind speed transmitter body are both provided with threading holes, and the hole walls of the two threading holes are respectively fixedly connected with a first rubber ring and a second rubber ring.

[0013] In the above-mentioned high temperature resistant explosion-proof wind speed transmitter, the material of the conical protective tube and the annular cover plate is copper, and the thickness of the conical protective tube and the annular cover plate is 4-6 mm.

[0014] Compared with the existing technology, the advantages of a high temperature resistant explosion-proof wind speed transmitter are: 1. By setting the sealing mechanism, conical protective cylinder and metal flange, when the wind speed transmitter is used, firstly, the cable used for connecting the wind speed transmitter is passed through the first rubber ring and the second rubber ring, and the cable is electrically connected to the wind speed transmitter body, which can ensure that the wind speed transmitter body can be used normally, and then the sealing mechanism is connected to the conical protective cylinder. At this time, the metal flange, conical protective cylinder and annular cover plate together form a sealed cavity for protecting the wind speed transmitter body. The sealed cavity can prevent the wind speed transmitter from generating electric sparks due to failure to ignite external dust and cause dust explosion. The mechanism enables the wind speed transmitter to have an explosion-proof function, improves the protection capability of the wind speed transmitter, and thus improves the safety of the use of the wind speed transmitter.

[0015] 2. By setting the annular cover, conical protective tube and metal flange, a Faraday shielding metal cage can be formed on the outside of the wind speed transmitter body. Since the electronic components of the wind speed transmitter are mainly concentrated on the top of the wind speed transmitter body, the Faraday shielding metal cage can effectively shield the external electromagnetic interference to the wind speed transmitter. This mechanism can effectively improve the wind speed transmitter's ability to resist electromagnetic interference, thereby improving the reliability of the wind speed transmitter.

[0016] 3. Through the air circulation mechanism, cooling water layer and semiconductor refrigeration plate, since the conical protective tube is made of copper, it has high thermal conductivity, and the surface area of ​​the conical protective tube is large, it can meet the heat dissipation requirements when the wind speed transmitter is in use, and the heat exported by the conical protective tube can also evaporate the cooling water layer. The evaporation of water can further improve the heat dissipation effect. If the wind speed transmitter is working in a high temperature environment, the air circulation mechanism and the semiconductor refrigeration plate will work and can effectively reduce the temperature inside the wind speed transmitter. Moreover, the heat-generating side of the semiconductor refrigeration plate can introduce heat into the cooling water layer. After the water is heated, the evaporation rate can be further increased to ensure the cooling effect. This mechanism enables the wind speed transmitter to have the function of high temperature resistance, effectively ensures the measurement accuracy of the wind speed transmitter in a high temperature environment, and at the same time improves the service life and reliability of the wind speed transmitter.

[0017] 4. Through the anti-static mechanism, the need for heat dissipation of the conical protective tube will cause the water in the cooling water layer to evaporate, and the evaporated water vapor rises along the inner wall of the water storage cover to the anti-static mechanism and is diverted. A part of the water vapor flows along the arc-shaped inner wall of the diversion cover and is liquefied into water droplets and flows to the outer surface of the wind speed transmitter, increasing the humidity of the surface of the wind speed transmitter, thereby avoiding the accumulation of static electricity on the surface of the wind speed transmitter, while the other part of the water vapor is diverted to the sealing mechanism through the guide cover, further increasing the humidity of the air around the wind speed transmitter, avoiding the accumulation of static electricity in a dry environment, and then avoiding static electricity from damaging the wind speed transmitter. This mechanism enables the wind speed transmitter to have an anti-static function, while improving the protection capability of the wind speed transmitter, and can improve the service life and reliability of the wind speed transmitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a high temperature resistant explosion-proof wind speed transmitter provided by the present invention; Figure 2 It is a schematic structural diagram of a cross-section of a high temperature resistant explosion-proof wind speed transmitter provided by the present invention; Figure 3 It is a structural schematic diagram of part A of a high temperature resistant and explosion-proof wind speed transmitter provided by the present invention; Figure 4 It is a structural schematic diagram of part B of a high temperature resistant and explosion-proof wind speed transmitter provided by the present invention; Figure 5 It is a structural schematic diagram of a water level monitoring mechanism in a high temperature resistant and explosion-proof wind speed transmitter provided by the present invention; Figure 6 It is a structural schematic diagram of a connecting ring part in a high temperature resistant explosion-proof wind speed transmitter provided by the present invention; Figure 7 The present invention is a schematic structural diagram of a sealing mechanism in a high temperature resistant and explosion proof wind speed transmitter.

[0019] In the figure: 1 wind speed transmitter body, 2 metal flange, 3 conical protective cylinder, 4 sealing mechanism, 41 annular cover plate, 42 acrylic transparent plate, 43 retaining ring, 44 sealing ring, 45 spring piece, 46 limit convex block, 5 semiconductor refrigeration plate, 6 water level monitoring mechanism, 61 insulating cylinder, 62 conductive ring, 63 hollow rod, 64 hollow floating block, 65 power-on sheet, 66 protective sponge block, 67 buzzer alarm, 7 anti-static mechanism, 71 support mesh ring, 72 diverter cover, 73 guide cover, 8 air circulation mechanism, 81 connecting ring, 82 air vent, 83 micro air pump, 84 fixing frame, 85 air inlet pipe, 86 mesh, 9 sealing film, 10 water storage cover, 11 cooling water liquid layer, 12 PLC controller, 13 temperature sensor, 14 first rubber ring, 15 second rubber ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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] like Figure 1-Figure 7 As shown, a high-temperature resistant and explosion-proof wind speed transmitter comprises a wind speed transmitter body 1 and a metal flange 2 for fixing the wind speed transmitter body 1, a conical protective tube 3 is fixedly connected to the upper surface of the metal flange 2, a sealing mechanism 4 is provided on the top of the conical protective tube 3, the sealing mechanism 4 comprises an annular cover plate 41 movably connected to the inner wall of the conical protective tube 3, an acrylic transparent plate 42 is fixedly connected to the inner wall of the annular cover plate 41, a retaining ring 43 is fixedly sleeved on the outer wall of the annular cover plate 41, a groove is embedded in the outer wall of the annular cover plate 41 and the lower surface of the retaining ring 43, and a sealing ring 44 is fixedly connected to the groove wall of the groove, a plurality of spring pieces 45 are fixedly connected to the upper surface of the conical protective tube 3, and a limiting protrusion 46 is fixedly connected to the side of the spring piece 45 close to the retaining ring 43. This mechanism can effectively improve the anti-electromagnetic interference capability of the wind speed transmitter, thereby improving the reliability of the use of the wind speed transmitter.

[0022] The outer wall of the bottom end of the conical protective cylinder 3 is provided with a plurality of mounting holes, and the hole walls of the mounting holes are sealed and fixedly connected with a semiconductor refrigeration plate 5, the outer wall of the conical protective cylinder 3 is fixedly connected with a water storage cover 10 for cooling the heat dissipation side of the semiconductor refrigeration plate 5, the inner side of the water storage cover 10 is filled with a cooling water layer 11, the bottom end of the water storage cover 10 is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected with a water level monitoring mechanism 6, the water level monitoring mechanism 6 includes an insulating cylinder 61 fixedly embedded with the water storage cover 10, the inner wall of the insulating cylinder 61 is fixedly connected with a conductive ring 62, and the inner wall of the top end of the insulating cylinder 61 is movably connected to the inner wall of the insulating cylinder 61. A hollow rod 63 is connected, and a sealing film 9 for waterproofing the conductive ring 62 is fixedly sleeved on the rod wall of the hollow rod 63. The outer wall of the sealing film 9 is fixedly connected to the inner wall of the insulating tube 61. The sealing film 9 can prevent water from interfering with the conductive ring 62 to ensure reliable operation. A hollow floating block 64 is fixedly connected to the top of the hollow rod 63, and a power-carrying sheet 65 is fixedly connected to the bottom end of the hollow rod 63. A protective sponge block 66 is fixedly connected to the inner wall of the insulating tube 61. A buzzer alarm 67 is fixedly embedded on the top of the annular cover plate 41. This mechanism enables the wind speed transmitter to monitor the water temperature of the cooling water layer 11.

[0023] The top outer wall of the water storage cover 10 is fixedly connected with an anti-static mechanism 7, and the anti-static mechanism 7 includes a supporting mesh ring 71 fixedly connected with the top outer wall of the conical protective tube 3, and the outer wall of the supporting mesh ring 71 is fixedly connected with a diversion cover 72 for water vapor diversion, and the top outer wall of the diversion cover 72 is fixedly connected with a guide cover 73. This mechanism enables the wind speed transmitter to have an anti-static function, while improving the protection capability of the wind speed transmitter, and can improve the service life and reliability of the wind speed transmitter.

[0024] The inner wall of the conical protective cylinder 3 is fixedly connected with an air circulation mechanism 8 for heat dissipation of the wind speed transmitter body 1. The air circulation mechanism 8 includes a connecting ring 81 fixedly connected to the inner wall of the conical protective cylinder 3. The inner wall of the connecting ring 81 is fixedly connected to the rod wall of the wind speed transmitter body 1. A plurality of air holes 82 are provided on the outer wall at the edge of the connecting ring 81, and the air holes 82 are located below the cooling side of the semiconductor refrigeration plate 5. A micro air pump 83 is fixedly connected to the top of the connecting ring 81. The outer wall of the micro air pump 83 and the rod wall of the wind speed transmitter body 1 are jointly connected with a fixing frame 84. The air inlet end of the micro air pump 83 is fixedly connected with an air inlet pipe 85. The top of the air inlet pipe 85 is fixedly connected to the outer wall of the top control box of the wind speed transmitter body 1. The outer wall of the top control box of the wind speed transmitter body 1 is provided with an air inlet hole, and the hole wall of the air inlet hole is fixedly connected with a mesh 86. This mechanism can circulate the air flow in the conical protective cylinder 3, thereby ensuring the heat dissipation effect of the wind speed transmitter.

[0025] The outer wall of the control box of the wind speed transmitter body 1 is fixedly connected with a PLC controller 12, a through hole is opened on the outer wall of the control box of the wind speed transmitter body 1, and a temperature sensor 13 is fixedly connected to the hole wall of the through hole, and the cable of the temperature sensor 13 is electrically connected to the input end of the PLC controller 12, and the outer walls of the conical protective cylinder 3 and the water storage cover 10 near the wire joint of the wind speed transmitter body 1 are both opened with threading holes, and the hole walls of the two threading holes are respectively fixedly connected with a first rubber ring 14 and a second rubber ring 15, and the first rubber ring 14 The constraint and support of the second rubber ring 15 can ensure that the side end of the cable connected to the wind speed transmitter body 1 can remain stable without large-angle bending, so that the side end of the cable connection is not easily disturbed by gravity and external force shaking and the insulation layer is cracked and damaged. The material of the conical protective tube 3 and the annular cover plate 41 is copper, and the thickness of the conical protective tube 3 and the annular cover plate 41 is 5 mm. The copper-made conical protective tube 3 and the annular cover plate 41 have a strong heat dissipation effect and can improve the wind speed transmitter's ability to resist electromagnetic interference.

[0026] The semiconductor refrigeration plate 5, the buzzer alarm 67 and the micro air pump 83 are all electrically connected to the output terminal of the PLC controller 12 through wires, the circuit composed of the power-on plate 65 and the conductive ring 62 is electrically connected to the input terminal of the PLC controller 12 through wires, and the temperature sensor 13 is electrically connected to the input terminal of the PLC controller 12 through wires. The temperature sensor 13 can transmit the temperature and electrical signals to the PLC controller 12. The above-mentioned power-on equipment and electrical connection technology are all existing technologies and are well known to those skilled in the art, and will not be repeated here.

[0027] The operating principle of the present invention is described as follows: when the wind speed transmission is in use, the cable used for connecting the wind speed transmitter is first passed through the first rubber ring 14 and the second rubber ring 15, and the cable is electrically connected to the wind speed transmitter body 1, which can ensure that the wind speed transmitter body 1 can be used normally. The constraints and supports of the first rubber ring 14 and the second rubber ring 15 can ensure that the side end of the cable connected to the wind speed transmitter body 1 can remain stable and without large-angle bending, so that the side end of the cable connection is not easily disturbed by gravity and external force shaking to cause cracking and damage of the insulation layer, and avoid the situation where different conductive cores touch and generate electric sparks. Moreover, the side end of the cable connected to the wind speed transmitter body 1 is located inside the conical protective tube 3, and even if an electric spark accident occurs accidentally, it will not ignite the dust in the external environment and cause a dust explosion. Then, the annular cover plate 41 is installed into the conical protective tube 3. Specifically, the retaining ring 43 on the annular cover plate 41 will squeeze the limiting protrusion 46 and cause the spring piece 45 to deform into an arc shape, so that the annular cover plate 41 can be smoothly connected to the conical protective tube 3. After the retaining ring 43 contacts the top of the conical protective tube 3, the sealing ring 44 can ensure the sealing of the connection between the annular cover plate 41 and the conical protective tube 3. At the same time, the limiting protrusion 46 loses the extrusion constraint of the retaining ring 43, and the arc-shaped spring piece 45 is under the action of the restoring force. The limiting protrusion 46 is stuck on the top of the retaining ring 43, and the annular cover plate 41 is conveniently installed. At this time, the metal flange 2, the conical protective cylinder 3 and the annular cover plate 41 together form a sealed cavity for protecting the wind speed transmitter body 1. The sealed cavity can prevent the wind speed transmitter from generating electric sparks due to a fault and igniting external dust to cause a dust explosion. This mechanism enables the wind speed transmitter to have an explosion-proof function, improves the protection capability of the wind speed transmitter, and thus improves the safety of the use of the wind speed transmitter; In addition, the metal flange 2, the copper conical protective cylinder 3 and the annular cover plate 41 form a Faraday shielding metal cage on the outside of the wind speed transmitter body 1. Since the electronic components of the wind speed transmitter are mainly concentrated on the top of the wind speed transmitter body 1, the Faraday shielding metal cage can effectively shield the external electromagnetic interference to the wind speed transmitter. At the same time, a branch line is led out from the ground core of the cable, and the branch line is connected to the conical protective cylinder 3. The use effect of the Faraday shielding metal cage is guaranteed by grounding treatment. The grounding treatment measure is a prior art and will not be repeated here. The mechanism can effectively improve the ability of the wind speed transmitter to resist electromagnetic interference, thereby improving the reliability of the use of the wind speed transmitter. When the wind speed transmitter is in use, the PLC controller 12 controls the micro air pump 83 to operate at low power. The micro air pump 83 draws air from the top shell of the wind speed transmitter body 1 through the air inlet pipe 85 to form a negative pressure state. The top shell of the wind speed transmitter body 1 in the negative pressure state draws air from the inside of the conical protective cylinder 3 through the mesh 86 of the air inlet hole to replenish the air, thereby circulating the air flow inside the conical protective cylinder 3 and facilitating the heat dissipation of the wind speed transmitter. In addition, the drawn air is transported to the lower side of the connecting ring 81, and then blown to the inner wall of the conical protective cylinder 3 through the air vent 82. The conical protective tube 3 is made of copper, which has a high thermal conductivity, and the surface area of ​​the conical protective tube 3 is large, which can meet the heat dissipation requirements when the wind speed transmitter is in use, and the heat conducted by the conical protective tube 3 can also evaporate the water in the cooling water layer 11, and the evaporation of the water can further improve the heat dissipation effect. If the wind speed transmitter is working in a high temperature environment, the heat dissipation rate of the conical protective tube 3 is low due to the high external temperature, resulting in the heat generated by the wind speed transmitter body 1 easily accumulating inside the conical protective tube 3, and the temperature sensor 13 detects the wind speed transmitter body 1 The temperature is detected by the temperature sensor 13, and the temperature is transmitted to the PLC controller 12 in the form of an electrical signal. When the temperature detected by the temperature sensor 13 exceeds the preset safety temperature threshold in the PLC controller 12, the PLC controller 12 can not only increase the suction power of the micro air pump 83, but also control the operation of the semiconductor refrigeration sheet 5. After the suction power of the micro air pump 83 is increased, the air circulation speed in the conical protective cylinder 3 can be increased to accelerate the heat dissipation. At the same time, the cooling side of the semiconductor refrigeration sheet 5 can quickly cool the circulating airflow, and the heat-generating side of the semiconductor refrigeration sheet 5 can introduce heat into the cooling water liquid layer 11. The water liquid is affected by the After heating, the evaporation rate can be further increased, and the evaporation process of the water liquid will absorb heat, and at the same time, the heat dissipation rate of the heat generating side of the semiconductor refrigeration sheet 5 can be increased, and the refrigeration effect of the semiconductor refrigeration sheet 5 can be improved, and the cooling effect of the wind speed transmitter can be improved, so as to avoid the wind speed transmitter from experiencing material property changes, aging of electronic components, stress caused by thermal expansion, and heat dissipation difficulties due to high temperature. This mechanism enables the wind speed transmitter to have a high temperature resistance function, effectively guarantees the measurement accuracy of the wind speed transmitter in a high temperature environment, and at the same time improves the service life and reliability of the wind speed transmitter; If the water level of the cooling water layer 11 is low, the buoyancy of the hollow float 64 in the water level monitoring mechanism 6 will decrease, and then the hollow float 64 will drop. The hollow rod 63 pushed by the hollow float 64 will make the power-on sheet 65 away from the conductive ring 62. At this time, the circuit between the power-on sheet 65 and the conductive ring 62 and the PLC controller 12 will be interrupted. At the same time, the PLC controller 12 will receive a corresponding power-off signal, thereby controlling the buzzer alarm 67 to sound an alarm. After receiving the buzzer alarm 67, the staff will replenish the cooling water in time to ensure that the cooling water layer 11 can be used reliably, so that the wind speed transmitter has the ability to monitor the water temperature of the cooling water layer 11. When the wind speed transmitter is working, the water in the cooling water layer 11 will evaporate due to the need for heat dissipation of the conical protective tube 3, and the evaporated water vapor rises along the inner wall of the water storage cover 10, and rises to the diverter cover 72 to be diverted, and a part of the water vapor flows along the arc-shaped inner wall of the diverter cover 72. As the flow distance increases, this part of the water vapor is cooled on the inner wall of the diverter cover 72 and liquefied into water droplets. The water droplets then flow along the outer wall of the water storage cover 10 and the outer wall of the bottom end of the conical protective tube 3 through the supporting mesh ring 71, increasing the humidity on the surface of the wind speed transmitter, thereby preventing static electricity from accumulating on the surface of the wind speed transmitter, while the other part of the water vapor The water is guided to the sealing mechanism 4 through the guide cover 73, so as to further improve the humidity of the air around the wind speed transmitter and avoid the accumulation of static electricity in a dry environment. The water molecules in the water vapor can not only improve the conductivity of the outer surface of the wind speed transmitter, but also reduce the resistance of the outer surface of the wind speed transmitter. Moreover, the water molecules and the ions in the air adsorb each other and neutralize the static charge, thereby reducing the accumulation of static electricity and avoiding the damage of the wind speed transmitter by static electricity. This mechanism enables the wind speed transmitter to have an anti-static function, while improving the protection ability of the wind speed transmitter and increasing the service life and reliability of the wind speed transmitter.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant explosion-proof wind speed transmitter, comprising a wind speed transmitter body (1) and a metal flange (2) for fixing the wind speed transmitter body (1), characterized in that: The upper surface of the metal flange (2) is fixedly connected to a conical protective cylinder (3), and a sealing mechanism (4) is provided on the top of the conical protective cylinder (3); a plurality of mounting holes are provided on the outer wall of the bottom end of the conical protective cylinder (3), and a semiconductor cooling plate (5) is sealed and fixedly connected to the hole wall of the mounting hole; a water storage cover (10) for cooling the heat dissipation side of the semiconductor cooling plate (5) is fixedly connected to the outer wall of the conical protective cylinder (3), and the inner side of the water storage cover (10) is filled with a cooling water layer (11); a fixed through hole is provided on the bottom end of the water storage cover (10), and the hole wall of the fixed through hole is fixedly connected to the semiconductor cooling plate (5); A water level monitoring mechanism (6) is connected, and an anti-static mechanism (7) is fixedly sleeved on the top outer wall of the water storage cover (10); an airflow circulation mechanism (8) for heat dissipation of the wind speed transmitter body (1) is fixedly connected to the inner wall of the conical protective cylinder (3); a PLC controller (12) is fixedly connected to the outer wall of the control box of the wind speed transmitter body (1), a through hole is opened on the outer wall of the control box of the wind speed transmitter body (1), and a temperature sensor (13) is fixedly connected to the hole wall of the through hole, and the cable of the temperature sensor (13) is electrically connected to the input end of the PLC controller (12).

2. A high temperature resistant explosion-proof wind speed transmitter according to claim 1, characterized in that: The sealing mechanism (4) comprises an annular cover plate (41) movably connected to the inner wall of the conical protective tube (3); the inner wall of the annular cover plate (41) is fixedly connected to an acrylic transparent plate (42); the outer wall of the annular cover plate (41) is fixedly sleeved with a retaining ring (43); the outer wall of the annular cover plate (41) and the lower surface of the retaining ring (43) are jointly embedded with a groove, and the groove wall of the groove is jointly fixedly connected to a sealing ring (44); the upper surface of the conical protective tube (3) is fixedly connected to a plurality of spring pieces (45), and a side of the spring piece (45) close to the retaining ring (43) is fixedly connected to a limiting protrusion (46).

3. A high temperature resistant explosion-proof wind speed transmitter according to claim 2, characterized in that: The water level monitoring mechanism (6) comprises an insulating tube (61) fixedly embedded in the water storage cover (10); the inner wall of the insulating tube (61) is fixedly connected to a conductive ring (62); the inner wall of the top end of the insulating tube (61) is movably connected to a hollow rod (63); the top end of the hollow rod (63) is fixedly connected to a hollow floating block (64); the bottom end of the hollow rod (63) is fixedly connected to a power supply sheet (65); the inner wall of the insulating tube (61) is fixedly connected to a protective sponge block (66); and the top end of the annular cover plate (41) is fixedly embedded with a buzzer alarm (67).

4. A high temperature resistant explosion-proof wind speed transmitter according to claim 3, characterized in that: A sealing film (9) for waterproofing the conductive ring (62) is fixedly sleeved on the rod wall of the hollow rod (63), and the outer wall of the sealing film (9) is fixedly connected to the inner wall of the insulating cylinder (61).

5. The high temperature resistant explosion-proof wind speed transmitter according to claim 1 is characterized in that: The antistatic mechanism (7) comprises a support mesh ring (71) fixedly sleeved on the outer wall of the top end of the conical protective tube (3); a flow diversion hood (72) for water vapor diversion is fixedly connected to the outer wall of the support mesh ring (71); and a guide hood (73) is fixedly connected to the outer wall of the top end of the flow diversion hood (72).

6. The high temperature resistant explosion-proof wind speed transmitter according to claim 1, characterized in that: The airflow circulation mechanism (8) comprises a connecting ring (81) fixedly connected to the inner wall of the conical protective tube (3), the inner wall of the connecting ring (81) is fixedly connected to the rod wall of the wind speed transmitter body (1), a plurality of air holes (82) are provided on the outer wall at the edge of the connecting ring (81), and the air holes (82) are located below the cooling side of the semiconductor cooling plate (5), the top of the connecting ring (81) is fixedly connected to a micro air pump (83), the outer wall of the micro air pump (83) and the rod wall of the wind speed transmitter body (1) are connected to a fixing frame (84), the air inlet end of the micro air pump (83) is fixedly connected to an air inlet pipe (85), the top end of the air inlet pipe (85) is fixedly connected to the outer wall of the top control box of the wind speed transmitter body (1), the outer wall of the top control box of the wind speed transmitter body (1) is provided with an air inlet hole, and the hole wall of the air inlet hole is fixedly connected to a mesh sheet (86).

7. The high temperature resistant explosion-proof wind speed transmitter according to claim 1, characterized in that: The outer walls of the conical protective cylinder (3) and the water storage cover (10) close to the wire joint of the wind speed transmitter body (1) are both provided with threading holes, and the hole walls of the two threading holes are respectively fixedly connected with a first rubber ring (14) and a second rubber ring (15).

8. The high temperature resistant explosion-proof wind speed transmitter according to claim 2, characterized in that: The conical protective tube (3) and the annular cover plate (41) are made of copper, and the thickness of the conical protective tube (3) and the annular cover plate (41) is 4-6 millimeters.

Images