Real-time monitoring device for centralized control operation parameters of thermal power plant
By designing a real -time monitoring device in the thermal power plant, it solves the problem of real -time monitoring difficulties when monitoring multiple control operation parameters when monitoring multiple control operation parameters. Life life of the device.
Patent Information
- Application Number
- CN202411434497.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-01-28
AI Technical Summary
When thermal power plants monitor more and more centralized operation parameters, existing thermal alarm systems cannot monitor all parameters in real time, making it difficult for operating personnel to detect equipment abnormalities in a timely manner, affecting safety and stability.
Design a real -time monitoring device, including protective cases, photon cards and real -time monitoring devices. It is connected to the thermal alarm system through electrical connection and communication connection. Monitor and alarm.
Through the use of real -time monitoring devices, the operator can customize the alarm parameters and thresholds to improve the quality of the monitoring disk, ensure the safety of the unit, and extend the service life and operating stability of the device through the heat dissipation and sealing design.
Smart Images

Figure CN119376305A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of safety monitoring devices for thermal power plants, and in particular to a real-time monitoring device for centralized control of operating parameters of thermal power plants. Background Art
[0002] A thermal power plant, also known as a thermal power plant, is a factory that uses combustibles as fuel to produce electricity. Its basic production process is: when the fuel burns, it heats water to generate steam, converting the chemical energy of the fuel into thermal energy. The steam pressure drives the turbine to rotate, converting the thermal energy into mechanical energy. The turbine then drives the generator to rotate, converting the mechanical energy into electrical energy.
[0003] Thermal power plants will be equipped with thermal alarm systems to monitor the centralized control operating parameters. Centralized control operating parameters refer to the parameters used to monitor and control various equipment and systems in the centralized control system. These parameters include but are not limited to temperature, pressure, flow, voltage, current, etc., which are used to ensure the stable operation and safe operation of the system. The thermal alarm system is an automated system with sound and light signal outputs to indicate that the thermal equipment or control system is abnormal or the process system parameters exceed the specified values.
[0004] The important parameter logic alarms of thermal power plants are reported to the leaders by the operation personnel according to the on-site situation and approved by the thermal control personnel. As the number of parameters that need to be monitored increases, the on-site photon cards are limited, and it is impossible to add every parameter to the thermal alarm, which will cause great trouble to the users. To this end, we propose a real-time monitoring device for the centralized control operation parameters of thermal power plants. Summary of the invention
[0005] The object of the present invention is to provide a real-time monitoring device for centralized control of operating parameters of a thermal power plant, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a real-time monitoring device for centralized control of operating parameters of a thermal power plant, comprising a protective shell, a photon sign and a real-time monitoring device body, the photon sign and the real-time monitoring device body are electrically connected, the real-time monitoring device body is communicatively connected to a thermal alarm system in the thermal power plant, an internal circulation heat dissipation mechanism is provided on the protective shell, the internal circulation heat dissipation mechanism is used to provide heat dissipation protection for the real-time monitoring device body in the protective shell, a wiring sealing mechanism is provided on the protective shell, the wiring sealing mechanism is used to seal the connection between the wire of the external sensor and the protective shell.
[0007] Preferably, a side support arm is fixedly installed on the top of the protective shell, the photon board is rotatably connected between the two side support arms, a movable door is movably inserted into the front of the protective shell, a magnetic block is fixedly installed on the inner wall of the movable door, the back of the magnetic block is magnetically connected to the front of the protective shell, and the main body of the real-time monitoring device is fixedly installed at the bottom of the inner wall of the protective shell.
[0008] Preferably, the internal circulation heat dissipation mechanism includes an internal circulation copper tube, a concentrated inner hollow plate one and a concentrated inner hollow plate two, the inner circulation copper tube is detachably connected to the right side of the inner wall of the protective shell, the concentrated inner hollow plate one is fixedly connected to the right side of the protective shell, the concentrated inner hollow plate two is fixedly connected to the right side of the protective shell and is located on the back side of the concentrated inner hollow plate one, the right side of the concentrated inner hollow plate one is fixedly connected with a hollow plate circulation one, the right side of the concentrated inner hollow plate two is fixedly connected with a hollow plate circulation two, a copper plate is fixedly installed on the inner wall of the back side of the hollow plate circulation two, and a semiconductor refrigerator is fixedly installed on the back side of the copper plate.
[0009] Preferably, a circulation cylinder is fixedly connected between adjacent sides of the hollow plate circulation one and the hollow plate circulation two, a driving motor is fixedly installed on the front side of the hollow plate circulation one, an extension shaft is fixedly connected to the output shaft of the driving motor, an impeller is rotatably connected to the inner wall of the circulation cylinder, and the outer wall of the extension shaft is fixedly connected to the inner wall of the impeller.
[0010] Preferably, a wind tube is fixedly installed on the back of the hollow plate circulation 2, a notch is opened on the left side of the wind tube, the back of the extension shaft extends into the inner cavity of the wind tube and is fixedly connected with a hexagonal shaft, and blades are fixedly installed on the outer wall of the hexagonal shaft.
[0011] Preferably, the wiring closing mechanism comprises a strip plate, the strip plate is fixedly mounted on the inner wall on the left side of the protective shell, a wire management hole is opened on the side of the strip plate, and a square wire passing shell is fixedly connected to the left side of the strip plate.
[0012] Preferably, a connecting foot is fixedly installed on the inner wall of the square wire passing shell, an inner cylinder is fixedly installed on the end of the connecting foot away from the inner wall of the square wire passing shell, the inner cylinder is fixedly connected between the two sides of the inner wall of the square wire passing shell, an annular rubber bag is fixedly connected to the inner wall of the inner cylinder, and a connecting hole is opened on the outer surface of the inner cylinder.
[0013] Preferably, a brake tube is fixedly connected to the top of the inner cylinder, and an air storage rubber bag is fixedly connected to the top of the brake tube.
[0014] Preferably, a frame is fixedly installed on the inner wall of the gate tube, a No. 1 gate groove is provided on the top and bottom of the frame, a sliding block is slidably connected to the inner wall of the frame, a pull rod is fixedly installed on the left side of the sliding block, and the left end of the pull rod extends to the left side of the gate tube.
[0015] Preferably, an elastic member is fixedly connected to the left side of the sliding block, the left side of the elastic member is fixedly connected to the left side of the inner wall of the gate tube, and a No. 2 gate groove is opened on the top of the sliding block.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] The present invention is designed with operation commands for the main body of the real-time monitoring device. The operator can customize the number of roll calls and edit the H / L value. After application, the attendant can edit the desired alarm according to his own operation needs, which can improve the monitoring quality of the operating personnel and ensure the safety of the unit. The design of the driving motor can drive the impeller to rotate, so that the air in the inner circulation copper tube circulates through the inner cavity of the hollow plate circulation two. At the same time, the design of the semiconductor refrigerator can cool the circulating air, that is, the function of cooling the air inside the protective shell is realized, avoiding the problem that the high temperature in the protective shell easily affects the normal operation of the main body of the real-time monitoring device. Through the overall design of the wiring closing mechanism, the connection between the external wire and the protective shell can be sealed, avoiding the problem that external dust easily enters the protective shell from the connection and then affects the main body of the real-time monitoring device, thereby improving the service life and operation stability of the main body of the real-time monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 It is a schematic diagram of the exploded structure of the protective shell of the present invention;
[0020] Figure 3 This is a schematic diagram of the back structure of the second hollow plate cycle of the present invention;
[0021] Figure 4 It is a structural schematic diagram of the circulation drum of the present invention;
[0022] Figure 5 It is a schematic diagram of the left part structure of the protective shell of the present invention;
[0023] Figure 6 It is a schematic diagram of the exploded structure of the square wire-passing housing of the present invention;
[0024] Figure 7 It is a structural schematic diagram of the inner cylinder of the present invention;
[0025] Figure 8 It is a schematic diagram of the cutaway structure of the brake tube of the present invention;
[0026] Fig. 9 It is a schematic diagram of the separation structure of the frame member and the sliding block of the present invention;
[0027] Fig.10 This is a block diagram of the operation commands of the real-time monitoring device body of the present invention.
[0028] In the figure: 1. Protective shell; 11. Side support arm; 12. Photon board; 13. Movable door; 14. Magnetic block; 15. Real-time monitoring device body; 2. Internal circulation heat dissipation mechanism; 21. Internal circulation copper pipe; 22. Concentrated inner hollow plate 1; 23. Concentrated inner hollow plate 2; 24. Hollow plate circulation 1; 25. Hollow plate circulation 2; 26. Circulation cylinder; 261. Impeller; 262. Extension shaft; 27. Driving motor; 28. Wind cylinder; 281. Hexagon Shaft; 282, blades; 29, copper plate; 291, semiconductor refrigerator; 3, wiring closure mechanism; 31, strip plate; 32, wire management hole; 33, square wire passing shell; 34, connecting foot; 35, inner tube; 351, annular rubber bag; 352, connecting hole; 36, gate tube; 361, frame; 362, gate slot No. 1; 363, pull rod; 364, elastic member; 365, sliding block; 366, gate slot No. 2; 37, gas storage rubber bag. DETAILED DESCRIPTION
[0029] 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.
[0030] See also Figure 1-Figure 10The present invention provides a technical solution: a real-time monitoring device for centralized control of operating parameters of a thermal power plant, comprising a protective shell 1, a photon board 12 and a real-time monitoring device body 15, the photon board 12 and the real-time monitoring device body 15 are electrically connected, the real-time monitoring device body 15 is communicatively connected with a thermal alarm system in the thermal power plant, an internal circulation heat dissipation mechanism 2 is provided on the protective shell 1, the internal circulation heat dissipation mechanism 2 is used to provide heat dissipation protection for the real-time monitoring device body 15 in the protective shell 1, a wiring sealing mechanism 3 is provided on the protective shell 1, the wiring sealing mechanism 3 is used to seal the connection between the wire of the external sensor and the protective shell 1, and the real-time monitoring device The operation method of the main body 15 includes the following steps: classifying the monitored parameters into roll call 1, roll call 2 and roll call 3, and setting a threshold value accordingly. The threshold value includes H value and L value. The value monitored by the sensor will be fed back to the real-time monitoring device main body 15 in real time. When the value monitored by the sensor is not within the range of H value and L value, the real-time monitoring device main body 15 controls the photon card 12 to alarm and transmit the signal to the thermal system at the same time. The operator can customize the number of roll calls and edit the H / L value. After application, the duty officer can edit the desired alarm according to his own operating needs, which can improve the monitoring quality of the operating personnel and ensure the safety of the unit.
[0031] In the preferred technical scheme of the present embodiment, a side support arm 11 is fixedly installed on the top of the protective shell 1, and the photon card 12 is rotatably connected between the two side support arms 11. A movable door 13 is movably inserted on the front of the protective shell 1, and a magnetic block 14 is fixedly installed on the inner wall of the movable door 13. The back of the magnetic block 14 is magnetically connected to the front of the protective shell 1. The real-time monitoring device body 15 is fixedly installed at the bottom of the inner wall of the protective shell 1. The connection relationship design between the side support arm 11 and the photon card 12 facilitates the user to adjust the elevation angle of the photon card 12, and facilitates the operator to observe the display surface of the photon card 12 at different positions. Glass is fixedly installed on the inner wall of the movable door 13, which facilitates the operator to observe the status of the real-time monitoring device body 15 through the glass on the movable door 13. The inner circulation copper tube 21 is installed on the inner wall of the protective shell 1 by bolts. The user can disassemble the inner circulation copper tube 21 to facilitate maintenance of the real-time monitoring device body 15. The design of the magnetic block 14 facilitates the operator to disassemble and assemble the movable door 13.
[0032] In the preferred technical solution of the present embodiment, the internal circulation heat dissipation mechanism 2 includes an internal circulation copper tube 21, a concentrated inner hollow plate 1 22 and a concentrated inner hollow plate 23. The internal circulation copper tube 21 is detachably connected to the right side of the inner wall of the protective shell 1, the concentrated inner hollow plate 1 22 is fixedly connected to the right side of the protective shell 1, the concentrated inner hollow plate 23 is fixedly connected to the right side of the protective shell 1 and is located on the back side of the concentrated inner hollow plate 1 22, the right side of the concentrated inner hollow plate 1 22 is fixedly connected with a hollow plate circulation 1 24, the right side of the concentrated inner hollow plate 23 is fixedly connected with a hollow plate circulation 2 25, a copper plate 29 is fixedly installed on the inner wall of the back side of the hollow plate circulation 25, and a semiconductor refrigerator 291 is fixedly installed on the back side of the copper plate 29, a circulation cylinder 26 is fixedly connected between the adjacent sides of the hollow plate circulation 1 24 and the hollow plate circulation 2 25, and the front side of the hollow plate circulation 1 24 is fixedly connected to the hollow plate circulation 2 A driving motor 27 is fixedly installed, and an extension shaft 262 is fixedly connected to the output shaft of the driving motor 27. An impeller 261 is rotatably connected to the inner wall of the circulation cylinder 26. The outer wall of the extension shaft 262 is fixedly connected to the inner wall of the impeller 261. The driving motor 27 is controlled to work, which can drive the extension shaft 262 to rotate, and at the same time drive the impeller 261 to rotate in the inner cavity of the circulation cylinder 26, so that the air in the inner circulation copper tube 21 circulates through the inner cavity of the concentrated inner hollow plate 1 22, the hollow plate circulation 1 24, the circulation cylinder 26, the hollow plate circulation 2 25 and the concentrated inner hollow plate 2 23. At the same time, the semiconductor refrigerator 291 is controlled to work, and the air in the hollow plate circulation 2 25 can be cooled through the copper plate 29, that is, the function of cooling the real-time monitoring device body 15 in the protective shell 1 is realized, thereby extending the service life of the real-time monitoring device body 15.
[0033] In the preferred technical solution of the present embodiment, a wind tube 28 is fixedly installed on the back of the hollow plate circulation 25, a notch is opened on the left side of the wind tube 28, the back of the extension shaft 262 extends into the inner cavity of the wind tube 28 and is fixedly connected with a hexagonal shaft 281, and blades 282 are fixedly installed on the outer wall of the hexagonal shaft 281. During the operation of the driving motor 27, the hexagonal shaft 281 can be driven to rotate through the transmission of the extension shaft 262, so that the blades 282 rotate in the inner cavity of the wind tube 28, and air can be drawn from the back of the wind tube 28 and then output from the notch of the wind tube 28. The air will blow onto the heat dissipation wings of the semiconductor refrigerator 291, and the semiconductor refrigerator 291 will be cooled to ensure the cooling effect of the semiconductor refrigerator 291.
[0034] In the preferred technical solution of this embodiment, the wiring closing mechanism 3 includes a strip plate 31, which is fixedly mounted on the inner wall of the left side of the protective shell 1, and a wire management hole 32 is opened on the side of the strip plate 31. A square wire passing shell 33 is fixedly connected to the left side of the strip plate 31, and a connecting foot 34 is fixedly mounted on the inner wall of the square wire passing shell 33. An inner cylinder 35 is fixedly mounted on one end of the connecting foot 34 away from the inner wall of the square wire passing shell 33. The inner cylinder 35 is fixedly connected between the two sides of the inner wall of the square wire passing shell 33, and an annular rubber bag 351 is fixedly connected to the inner wall of the inner cylinder 35. A connecting hole 352 is opened on the outer surface of the inner cylinder 35, and a gate tube 36 is fixedly connected to the top of the inner cylinder 35. The gate tube 3 6 is fixedly connected with an air storage rubber bag 37. The wire of the external sensor is passed through the inner cavity of the square wire-passing shell 33 and the wire-arranging hole 32, and then it can be connected to the real-time monitoring device body 15. Through the design of the connecting hole 352, the inner cavity of the annular rubber bag 351 is connected with the inner cavity of the square wire-passing shell 33. Air is transported into the inner cavity of the square wire-passing shell 33 through the inner cavity of the gate tube 36, which can increase the air content in the inner cavity of the annular rubber bag 351, so that the annular rubber bag 351 produces elastic deformation of expansion, and the connection between the wire and the inner cylinder 35 is sealed to prevent external dust from easily entering the protective shell 1 from the connection and affecting the real-time monitoring device body 15.
[0035] In the preferred technical solution of this embodiment, a frame 361 is fixedly installed on the inner wall of the gate tube 36, and a No. 1 gate groove 362 is provided at the top and bottom of the frame 361. A sliding block 365 is slidably connected to the inner wall of the frame 361. A pull rod 363 is fixedly installed on the left side of the sliding block 365. The left end of the pull rod 363 extends to the left side of the gate tube 36. An elastic member 364 is fixedly connected to the left side of the sliding block 365. The left side of the elastic member 364 is fixedly connected to the left side of the inner wall of the gate tube 36. A No. 2 gate groove 366 is provided on the top of the sliding block 365. The pull rod 363 is fixedly installed on the left side of the gate tube 36. By pulling the pull rod 363 to the left, the sliding block 365 can be moved to the left and the elastic member 364 can be squeezed at the same time, so that the first gate groove 362 and the second gate groove 366 overlap in the vertical direction, and the gas storage rubber bag 37 can be squeezed, so that the gas inside the gas storage rubber bag 37 enters the square wire-passing housing 33, so that the annular rubber bag 351 expands, and then the pull rod 363 is released, and the sliding block 365 can be reset by the reset elastic force of the elastic member 364, so that the first gate groove 362 and the second gate groove 366 do not overlap, that is, the sealing process of the inner cavity of the gate tube 36 is completed.
[0036] Working principle: Pass the wires of the external sensor through the inner cavity of the square wire-passing shell 33 and the wire-management hole 32, and then connect them to the main body 15 of the real-time monitoring device. The operator can customize the number of roll calls, edit the H / L value, and control the drive motor 27 and the semiconductor refrigerator 291 to work simultaneously, so as to perform temperature reduction protection treatment on the main body 15 of the real-time monitoring device. After the wires of the external sensor are connected, pull the pull rod 363 to the left, thereby squeezing the air storage rubber bag 37, and then release the pull rod 363 to complete the sealing treatment of the wire connection.
[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A real-time monitoring device for centralized control of operating parameters of a thermal power plant, comprising a protective housing (1), a photon card (12) and a real-time monitoring device body (15), wherein the photon card (12) and the real-time monitoring device body (15) are electrically connected, and the real-time monitoring device body (15) is communicatively connected to a thermal alarm system in the thermal power plant, characterized in that: The protective shell (1) is provided with an internal circulation heat dissipation mechanism (2), and the internal circulation heat dissipation mechanism (2) is used to provide heat dissipation protection for a real-time monitoring device main body (15) in the protective shell (1); The protective housing (1) is provided with a wiring sealing mechanism (3), and the wiring sealing mechanism (3) is used to seal the connection between the wire of the external sensor and the protective housing (1).
2. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 1, characterized in that: A side support arm (11) is fixedly mounted on the top of the protective shell (1); the photon board (12) is rotatably connected between the two side support arms (11); a movable door (13) is movably inserted into the front of the protective shell (1); a magnetic block (14) is fixedly mounted on the inner wall of the movable door (13); the back of the magnetic block (14) is magnetically connected to the front of the protective shell (1); and the main body (15) of the real-time monitoring device is fixedly mounted on the bottom of the inner wall of the protective shell (1).
3. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 1, characterized in that: The internal circulation heat dissipation mechanism (2) comprises an internal circulation copper tube (21), a concentrated internal hollow plate one (22) and a concentrated internal hollow plate two (23); the internal circulation copper tube (21) is detachably connected to the right side of the inner wall of the protective shell (1); the concentrated internal hollow plate one (22) is fixedly connected to the right side of the protective shell (1); the concentrated internal hollow plate two (23) is fixedly connected to the right side of the protective shell (1) and is located on the back side of the concentrated internal hollow plate one (22); the right side of the concentrated internal hollow plate one (22) is fixedly connected to a hollow plate circulation one (24); the right side of the concentrated internal hollow plate two (23) is fixedly connected to a hollow plate circulation two (25); a copper plate (29) is fixedly mounted on the inner wall of the back side of the hollow plate circulation two (25); and a semiconductor refrigerator (291) is fixedly mounted on the back side of the copper plate (29).
4. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 3, characterized in that: A circulation drum (26) is fixedly connected between adjacent sides of the hollow plate circulation one (24) and the hollow plate circulation two (25); a driving motor (27) is fixedly installed on the front side of the hollow plate circulation one (24); an extension shaft (262) is fixedly connected to the output shaft of the driving motor (27); an impeller (261) is rotatably connected to the inner wall of the circulation drum (26); and an outer wall of the extension shaft (262) is fixedly connected to the inner wall of the impeller (261).
5. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 4, characterized in that: A wind tube (28) is fixedly mounted on the back of the hollow plate circulation unit 2 (25), a notch is provided on the left side of the wind tube (28), the back of the extension shaft (262) extends into the inner cavity of the wind tube (28) and is fixedly connected to a hexagonal shaft (281), and a blade (282) is fixedly mounted on the outer wall of the hexagonal shaft (281).
6. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 1, characterized in that: The wiring closing mechanism (3) comprises a strip plate (31), the strip plate (31) being fixedly mounted on the inner wall on the left side of the protective housing (1), a wire arrangement hole (32) being provided on the side of the strip plate (31), and a square wire passing housing (33) being fixedly connected to the left side of the strip plate (31).
7. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 6, characterized in that: A connecting foot (34) is fixedly mounted on the inner wall of the square wire-passing housing (33); an inner cylinder (35) is fixedly mounted on one end of the connecting foot (34) away from the inner wall of the square wire-passing housing (33); the inner cylinder (35) is fixedly connected between two sides of the inner wall of the square wire-passing housing (33); an annular rubber bag (351) is fixedly connected to the inner wall of the inner cylinder (35); and a connecting hole (352) is provided on the outer surface of the inner cylinder (35).
8. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 7, characterized in that: The top of the inner cylinder (35) is fixedly connected to a brake tube (36), and the top of the brake tube (36) is fixedly connected to an air storage rubber bag (37).
9. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 8, characterized in that: A frame member (361) is fixedly mounted on the inner wall of the gate tube (36), a gate groove (362) is provided on the top and bottom of the frame member (361), a sliding block (365) is slidably connected to the inner wall of the frame member (361), a pull rod (363) is fixedly mounted on the left side of the sliding block (365), and the left end of the pull rod (363) extends to the left side of the gate tube (36).
10. A real-time monitoring device for centralized control of operating parameters of a thermal power plant according to claim 9, characterized in that: The left side of the sliding block (365) is fixedly connected to an elastic member (364), the left side of the elastic member (364) is fixedly connected to the left side of the inner wall of the gate tube (36), and a No. 2 gate groove (366) is provided on the top of the sliding block (365).