DVP cabinet structure in integrated shipborne steam turbine control protection system

Abstract

The utility model relates to the technical field of steam turbines, in particular to a DVP cabinet structure in an integrated shipborne steam turbine control protection system, which comprises a DVP cabinet body, a cavity is arranged in the DVP cabinet body, and a first mounting area, a second mounting area, a third mounting area, a fourth mounting area and a fifth mounting area are arranged in the cavity. The first installation area, the second installation area and the third installation area are all arranged at the bottom of the cavity, the fourth installation area is arranged above the first installation area and the second installation area, and the fifth installation area is arranged above the third installation area and the fourth installation area. An air processing and cooling structure capable of processing air in the cavity is arranged in the DVP cabinet body. Compared with the prior art, the DVP cabinet structure in the integrated shipborne steam turbine control protection system has the advantages that the DVP cabinet body is high in integration degree, small in occupied space and portable to move, the DVP cabinet body can be effectively cooled, and the practicability of the equipment is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbines, in particular to a DVP cabinet structure in an integrated shipboard steam turbine control and protection system. Background Art

[0002] DVP cabinet is an important part of the shipboard steam turbine control and protection system, mainly used to integrate digital valve positioner and its related control, protection and monitoring equipment. DVP cabinet is well designed and compact, which can withstand various vibrations and shocks during the operation of the ship and ensure the stable operation of the internal equipment.

[0003] Since the DVP cabinet is an integrated type, there are many running devices inside it. During long-term operation, the heat inside the DVP cabinet increases sharply, which can affect the operation of the equipment and further affect the service life of the equipment. Therefore, a DVP cabinet structure in an integrated shipboard steam turbine control and protection system is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a DVP cabinet structure in an integrated shipboard steam turbine control and protection system, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: the DVP cabinet structure in the integrated shipborne steam turbine control and protection system includes a DVP cabinet, a cavity is provided in the DVP cabinet, a first installation area, a second installation area, a third installation area, a fourth installation area and a fifth installation area are provided in the cavity, the first installation area, the second installation area and the third installation area are arranged at the bottom of the cavity, the fourth installation area is arranged above the first installation area and the second installation area, and the fifth installation area is installed above the third installation area and the fourth installation area, and the DVP cabinet is provided with an air treatment and cooling structure that can process the gas in the cavity. By arranging the first installation area, the second installation area, the third installation area, the fourth installation area and the fifth installation area in the DVP cabinet, various electrical equipment can be installed in the cavity of the DVP cabinet in an integrated manner. And by setting the air treatment and cooling structure, the temperature of the equipment in the DVP cabinet can be effectively cooled and cooled.

[0008] Furthermore, a power supply integrated circuit for supplying power is installed in the first installation area, and a switch integrated circuit is installed in the second installation area. The switch integrated circuit can be used to start and stop the power supply of the power supply integrated circuit.

[0009] Furthermore, the third installation area is provided with a signal terminal, the fourth installation area is provided with a partition for distinguishing the fourth installation area, the fourth installation area above the partition is provided with a thermostat, a relay, a shunt bus and a protection diode, and the fourth installation area below the partition is provided with a power converter, an air circuit breaker and a grounding bar. Signal terminals play a vital role in electronic equipment. They are a group of electronic plugs that connect circuit boards or electronic devices, and are mainly used to transmit signals in circuits. These terminals usually include grounding, positive and negative terminals, which can carry the transmission and processing of signals, ensuring the stability and accurate transmission of signals in circuits. A thermostat is an automatic control element, also known as a temperature control switch, a temperature protector or a temperature controller. Its main function is to produce physical deformation inside the switch according to the temperature changes in the working environment, thereby producing a specific effect and realizing the conduction or disconnection action. The implementation of this automatic control helps to ensure that the equipment reaches the ideal temperature during operation, while achieving energy saving effects. A relay is an electronic control device with a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. It is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. The main function of the shunt bus is to separately manage and control large currents, thereby avoiding damage to electrical equipment due to large currents and ensuring the safety and stability of power supply. In the power system, the bus shunt can be shunted according to different power supply requirements to improve the utilization rate of power and power supply efficiency, and control the voltage and current to keep them within a reasonable range. The protection diode plays multiple roles in the circuit, such as preventing reverse voltage breakdown, limiting current peaks, absorbing surge voltage and current, and providing electrostatic discharge protection, thereby ensuring the stability and reliability of the circuit and extending the service life of electronic equipment. The source converter plays an important role in power supply. It can realize voltage conversion, current stability, provide a variety of socket forms, and protect equipment, etc., providing a stable and reliable power supply for various devices. Circuit breakers play an important protective role in circuit systems, ensuring safe and stable operation of circuits and avoiding various dangerous situations caused by circuit failures. At the same time, their convenient operability and fault diagnosis functions also improve the efficiency and safety of circuit maintenance. The main function of the grounding bar is to ensure the safe grounding of electrical equipment and systems, prevent the risk of electric shock, protect equipment from damage, and provide lightning protection and electrostatic protection. It provides a stable and safe operating environment for electrical equipment and systems by forming a low-impedance connection with the earth.

[0010] Furthermore, four signal terminals of different specifications are installed in the third installation area from top to bottom, the temperature controller, relay, shunt bus and protection diode are installed in the fourth installation area above the partition from left to right, and the power converter, circuit breaker and grounding bus are installed in the fourth installation area below the partition from left to right.

[0011] Furthermore, a plurality of valve position controllers are provided in the fifth installation area.

[0012] Furthermore, the air handling and cooling structure includes a cooler pipe and an instrument air filter, wherein the cooler pipe is installed at the top of the DVP cabinet, and the instrument air filter is installed at the side wall of the DVP cabinet. A connecting pipe that can connect the cooler pipe and the instrument air filter is provided in the cavity, and a solenoid valve controller that can control the on and off of compressed air is provided in the connecting pipe. The functions of the cooler pipe are mainly reflected in the following aspects:

[0013] 1. Lowering the temperature: The main function of the cooler tube is to lower the temperature of the equipment or system. It transfers heat to the coolant so that the components inside the equipment can operate within the appropriate temperature range. This helps prevent the equipment from overheating, thereby ensuring the normal operation of the equipment and extending its service life.

[0014] 2. Improve product quality: In the industrial production process, the cooler tube can effectively reduce the impact of temperature on product performance, thereby improving the quality of the product. For example, in some processes that require precise temperature control, the cooler tube can ensure that the product is processed or treated under the specified temperature conditions to achieve the expected product quality.

[0015] 3. Protect equipment: Cooler tubes can also protect equipment from high temperature damage. When the equipment is running, its internal components may generate a lot of heat. If there is no effective cooling measures, this heat may cause equipment damage or performance degradation. By transferring heat to the coolant in a timely manner, the cooler tube can reduce the temperature of the equipment and ensure the safe operation of the equipment.

[0016] 4. Improve energy efficiency: An effective cooling system can help improve the energy efficiency of equipment. By lowering the operating temperature of the equipment, the cooler tube can reduce the energy required by the equipment during operation, thereby reducing energy consumption and operating costs.

[0017] In summary, cooler tubes play a vital role in industrial production. They can not only reduce equipment temperature and improve product quality, but also protect equipment from high temperature damage and improve energy efficiency.

[0018] The main function of the instrument air filter is to remove particulate impurities in the air and provide clean air for mechanical equipment.

[0019] Furthermore, the number of the cooler tubes is four, and the four cooler tubes are installed at the four corners of the top of the DVP cabinet, and the four cooler tubes are interconnected.

[0020] Furthermore, the exterior of the DVP cabinet is provided with a plurality of interfaces capable of connecting prefabricated cables.

[0021] Compared with the prior art, the DVP cabinet structure in the integrated shipborne steam turbine control and protection system has a high degree of integration, occupies a small space, is portable, and can effectively cool the DVP cabinet, greatly improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the internal structure;

[0024] Figure 3 For this utility model Figure 2 A schematic diagram of the structure in front view;

[0025] Figure 4 For this utility model Figure 2 A schematic diagram of the structure from another perspective.

[0026] In the figure: 1. DVP cabinet; 2. Cavity; 3. First installation area; 4. Second installation area; 5. Third installation area; 6. Fourth installation area; 7. Fifth installation area; 8. Air handling and cooling structure; 9. Power integration; 10. Switch integration; 11. Signal terminal; 12. Partition; 13. Temperature controller; 14. Relay; 15. Shunt bus; 16. Protection diode; 17. Power converter; 18. Circuit breaker; 19. Grounding bar; 20. Valve position controller; 21. Cooler pipe; 22. Instrument air filter; 23. Connecting pipe; 24. Solenoid valve controller; 25. Interface. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] See also Figures 1 to 4The utility model provides a technical solution: a DVP cabinet structure in an integrated ship-borne steam turbine control and protection system, comprising a DVP cabinet body 1, a cavity 2 is provided in the DVP cabinet body 1, a first installation area 3, a second installation area 4, a third installation area 5, a fourth installation area 6 and a fifth installation area 7 are provided in the cavity 2, a plurality of valve position controllers 20 are provided in the fifth installation area 7, the first installation area 3, the second installation area 4 and the third installation area 5 are all arranged at the bottom of the cavity 2, the fourth installation area 6 is arranged above the first installation area 3 and the second installation area 4, and the fifth installation area 7 is installed above the third installation area 5 and the fourth installation area 6, a power supply integration 9 for power supply is installed in the first installation area 3, a switch integration 10 is installed in the second installation area 4, a signal terminal 11 is installed in the third installation area 5, a partition 12 for distinguishing the fourth installation area 6 is provided in the fourth installation area 6, a thermostat 13, a relay 14, a shunt bus 15 and a protection diode 16 are provided in the fourth installation area 6 above the partition 12, a power converter 17, an air circuit breaker 18 and a grounding bar 19 are provided in the fourth installation area 6 below the partition 12, and the Four signal terminals 11 of different specifications are installed in the third installation area 5 from top to bottom. The thermostat 13, relay 14, shunt bus 15 and protection diode 16 are installed in the fourth installation area 6 above the partition 12 from left to right. The power converter 17, circuit breaker 18 and grounding bar 19 are installed in the fourth installation area 6 below the partition 12 from left to right. The DVP cabinet 1 is provided with an air treatment and cooling structure 8 that can treat the gas in the cavity 2. The air treatment and cooling structure 8 includes a cooler pipe 21 and an instrument air filter 2 2. The cooler pipe 21 is installed at the top of the DVP cabinet 1, and the instrument air filter 22 is installed at the side wall of the DVP cabinet 1. A connecting pipe 23 that can connect the cooler pipe 21 and the instrument air filter 22 is provided in the cavity 2. The connecting pipe 23 is provided with a solenoid valve controller 24 that can control the on and off of compressed air. There are four cooler pipes 21, and the four cooler pipes 21 are installed at the four corners of the top of the DVP cabinet 1. The four cooler pipes 21 are connected to each other. The outside of the DVP cabinet 1 is provided with a plurality of interfaces 25 that can connect prefabricated cables.

[0029] The electrical components mentioned in this article are all connected to an external main controller and 380V commercial power, and the main controller can be a conventional known device for control such as a computer.

[0030] In the description of this specification, the terms "connect", "install", "fix", "set", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to the specific circumstances.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. The DVP cabinet structure in the integrated shipboard steam turbine control and protection system is characterized by: The invention comprises a DVP cabinet (1), wherein a cavity (2) is provided in the DVP cabinet (1), wherein a first installation area (3), a second installation area (4), a third installation area (5), a fourth installation area (6) and a fifth installation area (7) are provided in the cavity (2), wherein the first installation area (3), the second installation area (4) and the third installation area (5) are all arranged at the bottom of the cavity (2), the fourth installation area (6) is arranged above the first installation area (3) and the second installation area (4), and the fifth installation area (7) is installed above the third installation area (5) and the fourth installation area (6), and wherein the DVP cabinet (1) is provided with an air treatment and cooling structure (8) capable of treating gas in the cavity (2).

2. The DVP cabinet structure in the integrated shipboard steam turbine control and protection system according to claim 1 is characterized in that: A power supply assembly (9) for supplying power is installed in the first installation area (3), and a switch assembly (10) is installed in the second installation area (4).

3. The DVP cabinet structure in the integrated shipboard steam turbine control and protection system according to claim 1 is characterized in that: The third installation area (5) is provided with a signal terminal (11), the fourth installation area (6) is provided with a partition (12) for distinguishing the fourth installation area (6), the fourth installation area (6) above the partition (12) is provided with a temperature controller (13), a relay (14), a shunt bus (15) and a protection diode (16), and the fourth installation area (6) below the partition (12) is provided with a power converter (17), an air circuit breaker (18) and a grounding bar (19).

4. The DVP cabinet structure in the integrated shipborne steam turbine control and protection system according to claim 3 is characterized in that: Four signal terminals (11) of different specifications are installed in sequence from top to bottom in the third installation area (5); the temperature controller (13), relay (14), shunt bus (15) and protection diode (16) are installed in sequence from left to right in the fourth installation area (6) above the partition (12); and the power converter (17), circuit breaker (18) and grounding bar (19) are installed in sequence from left to right in the fourth installation area (6) below the partition (12).

5. The DVP cabinet structure in the integrated shipborne steam turbine control and protection system according to claim 1 is characterized in that: A plurality of valve position controllers (20) are provided in the fifth installation area (7).

6. The DVP cabinet structure in the integrated shipboard steam turbine control and protection system according to claim 1 is characterized in that: The air handling and cooling structure (8) comprises a cooler pipe (21) and an instrument air filter (22), wherein the cooler pipe (21) is installed at the top of the DVP cabinet (1), and the instrument air filter (22) is installed at the side wall of the DVP cabinet (1). A connecting pipe (23) capable of connecting the cooler pipe (21) and the instrument air filter (22) is provided in the cavity (2), and a solenoid valve controller (24) capable of controlling the on and off of compressed air is provided in the connecting pipe (23).

7. The DVP cabinet structure in the integrated shipboard steam turbine control and protection system according to claim 6 is characterized in that: The number of the cooler tubes (21) is four. The four cooler tubes (21) are installed at the four corners of the top of the DVP cabinet (1). The four cooler tubes (21) are interconnected.

8. The DVP cabinet structure in the integrated shipboard steam turbine control and protection system according to claim 7 is characterized in that: The outside of the DVP cabinet (1) is provided with a plurality of interfaces (25) capable of connecting prefabricated cables.

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