Thermal control equipment for thermal power plant

Abstract

The utility model discloses thermal power plant thermotechnical control equipment, which comprises a cabinet body arranged at the upper end of a mounting seat, the cabinet body is composed of a cabinet front frame, a cabinet rear frame and a top cover at the upper end, the cabinet front frame and the cabinet rear frame are in butt joint front and back, the bottom of the back of the cabinet rear frame is fixedly connected with a mounting plate, and the mounting plate is fixedly connected to the upper end of the mounting seat through bolts. Bent clamping strips are longitudinally and fixedly connected to the outer sides of the butt joint faces of the cabinet front frame and the cabinet rear frame, bent clamping sleeves are fixedly connected to the bottoms of the two sides of the top cover, and the bent clamping sleeves are slidably clamped to the outer sides of the adjacent bent clamping strips which are attached and connected in a butt joint mode. According to the utility model, an existing thermal control equipment system cabinet for a thermal power plant is improved and designed through an assembly type structure, and when internal components are repaired and maintained subsequently, the front frame of the cabinet can be detached, so that the rear frame of the cabinet and the built-in components and circuits are completely exposed to the outside; large enough operation space and visual field are reserved for workers to carry out overhaul and maintenance operation, and the operation portability is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermal control in thermal power plants, and in particular to a thermal control device for thermal power plants. Background Technology

[0002] A thermal power plant, or coal-fired power plant for short, is a factory that uses coal, oil, or natural gas as fuel to produce electricity. Its basic production process is as follows: fuel is burned in a boiler to heat water to make steam, which converts the chemical energy of the fuel into heat energy. The steam pressure drives the turbine to rotate, converting the heat energy into mechanical energy. Then the turbine drives the generator to rotate, converting the mechanical energy into electrical energy.

[0003] Thermal control equipment (thermal engineering control equipment) in thermal power plants is a key system for ensuring the safe, stable, and efficient operation of the units. It is mainly used to monitor, regulate, and protect the parameters and processes of the thermal system. In existing thermal control equipment for thermal power plants (such as DCS / PLC system cabinets, which house controllers, I / O cards, and communication modules, supporting plant-wide logic control and data interaction), the controllers, cards, and modules are all installed on the inner wall of the cabinet cavity and connected to wiring. Subsequent maintenance and repair of the wiring is extremely inconvenient due to the limited internal frame of the control cabinet and the large number of internal components and complex wiring. Therefore, this paper proposes a thermal engineering control device for thermal power plants to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art as mentioned in the background art. To achieve the above objective, this utility model adopts the following technical solution:

[0005] A thermal control device for a thermal power plant includes a cabinet body mounted on the upper end of a mounting base. The cabinet body consists of a front frame, a rear frame, and a top cover that are connected front and rear. The controller, I / O cards, and communication modules are all installed on the inner wall of the rear frame. The front of the front frame has a matching door. The bottom of the back of the rear frame is fixedly connected to a mounting plate, which is bolted to the upper end of the mounting base. Bending strips are longitudinally fixedly connected to the outer sides of the mating surfaces of the front and rear frames. Bending sleeves are fixedly connected to the bottom of both sides of the top cover, and the bending sleeves slide and engage with the outer sides of the adjacent bent strips after mating.

[0006] Preferably, rubber pads are provided between adjacent contact surfaces of the mounting base, the front frame of the cabinet, the rear frame of the cabinet, and the top cover.

[0007] Preferably, a T-shaped slider is fixedly connected to the bottom of the front frame of the cabinet, and a T-shaped groove is provided on the upper surface of the mounting base to slide in contact with the T-shaped slider.

[0008] Preferably, air vents are provided on the outer sides of the front frame and rear frame of the cabinet, and an air vent frame is fixedly connected to the outer side of the bent sleeve and mated with the air vent. Sealing gaskets are provided on the contact surfaces of the air vent frame and the front frame and rear frame of the cabinet, and a heat dissipation vent is provided on the outer side of the air vent frame and mated with the air vent.

[0009] Preferably, the heat dissipation vent includes a horizontal channel that is laterally connected to the air outlet and an inclined channel that is inclined to connect to the outside, with the horizontal channel and the inclined channel being connected.

[0010] Preferably, the inclined channel is inclined downward, and a filter screen is provided at the outer end of the inclined channel.

[0011] Compared with the prior art, the present invention has the following beneficial effects;

[0012] This utility model improves the design of the existing thermal control equipment system cabinet in thermal power plants through a prefabricated structure. The cabinet body is disassembled into a front frame, a rear frame, and a top cover, etc. This allows the front frame to be disassembled during subsequent maintenance of internal components, exposing the rear frame and internal components and wiring to the outside world. This provides workers with sufficient operating space and visibility for maintenance operations, improving the portability of operation.

[0013] Based on this, the prefabricated structure design of the cabinet can reduce the overall carrying space occupied. At the same time, if it is damaged, there is no need to replace the whole structure, only the corresponding part needs to be replaced, which reduces the overall maintenance cost. Moreover, the overall assembly operation is simple and highly practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view schematic diagram of the connection structure between the front frame, rear frame, and bent clamp of the cabinet of this utility model.

[0016] Figure 3 This is an enlarged schematic diagram of the structure at point A of this utility model;

[0017] Figure 4 This is a side view cross-sectional schematic diagram of the air outlet frame structure of this utility model.

[0018] In the diagram: 1-Mounting base, 2-Front frame of the cabinet, 201-T-type slider, 202-T-type slide rail, 3-Rear frame of the cabinet, 4-Door, 5-Mounting plate, 6-Bent strip, 7-Air outlet, 8-Top cover, 9-Bent sleeve, 10-Air outlet frame, 1001-Sealing gasket, 1002-Horizontal channel, 1003-Inclined channel, 1004-Filter screen. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A thermal control device for a thermal power plant includes a cabinet body mounted on the upper end of a mounting base 1. The cabinet body consists of a front frame 2, a rear frame 3, and a top cover 8 that are connected front and rear. The controller, I / O cards, and communication modules are all installed on the inner wall of the rear frame 3. The front of the front frame 2 is provided with a matching door 4. The bottom of the back of the rear frame 3 is fixedly connected to a mounting plate 5, which is fixedly connected to the upper end of the mounting base 1 by bolts. The outer sides of the mating surfaces of the front frame 2 and the rear frame 3 are both longitudinally fixedly connected with bent clips 6. The bottom of both sides of the top cover 8 are fixedly connected with bent sleeves 9, which slide and engage with the outer sides of the adjacent bent clips 6 after mating. The bottom of the front frame 2 is fixedly connected with a T-shaped slider 201, and the upper surface of the mounting base 1 is provided with a T-shaped groove 202 that slides in contact with the T-shaped slider 201.

[0024] Based on the above basic structural setup, this device adopts a prefabricated structure to improve the design of the existing thermal control equipment system cabinet in thermal power plants. The cabinet body is disassembled into a front frame 2, a rear frame 3, and a top cover 8, among other connecting components. In the prefabricated configuration, the rear frame 3 is attached to the upper end of the mounting base 1 via a mounting plate 5 on the back. High-strength bolts are used to fix the mounting plate 5 to the designated position on the upper end of the mounting base 1. Then, the front frame 2 is placed on the upper end of the mounting base 1, and the T-shaped slider 201 at the bottom of the front frame 2 slides and engages with the mounting base 1. The upper T-shaped slide 202 slides and pushes the front frame 2 of the cabinet to fit and align with the rear frame 3 of the cabinet until the front frame 2 and the rear frame 3 of the cabinet are in contact with each other. At this time, the bent clips 6 on the outside of the front frame 2 and the rear frame 3 of the cabinet are also in contact with each other. Then the top cover 8 is put on. While the top cover 8 seals the upper part of the front frame 2 and the rear frame 3 of the cabinet, the bent clips 9 on both sides of the top cover 8 are just engaged between the adjacent bent clips 6, and limit the relative fixation of the front frame 2 and the rear frame 3 of the cabinet that are in contact with each other, thus completing the splicing of the cabinet body.

[0025] Similarly, when inspecting and maintaining the components in the rear frame 3 of the cabinet, one only needs to hold the top cover 8 and pull it upwards to pull the top cover 8 and the bent retaining sleeves 9 on both sides of the bottom upwards to disengage from the bent retaining strips 6. Then, the front frame 2 of the cabinet can be slid off to inspect and maintain the electrical components inside the rear frame 3. No disassembly tools are required in this process, and the rear frame 2 of the cabinet and the built-in components and circuits are completely exposed after the front frame 2 of the cabinet is removed, providing the staff with a large enough operating space and field of vision for inspection and maintenance operations, thus improving the portability of operation.

[0026] It should be added that:

[0027] (1) Mounting base 1 can be a fixed mounting platform or a concrete base structure.

[0028] (2) The contact surfaces of the T-shaped slider 201 and the T-shaped groove 202 are both designed with a smooth surface structure to facilitate smooth sliding of the whole;

[0029] (3) Rubber pads are provided between adjacent contact surfaces of mounting base 1, front frame of cabinet 2, rear frame of cabinet 3, and top cover 8. The rubber pads can increase the sealing effect of the connection, and the friction of the rubber pads themselves can play a role in preventing slippage and displacement after docking, thus playing an auxiliary stabilizing effect.

[0030] (4) The contact surface between the bending sleeve 9 and the bending strip 6 can also be set with a damping pad structure. A little force is required when installing or disassembling, but this force is completely acceptable and easy for adults to operate. However, the setting of the damping pad can greatly increase the stability of the connection between the bending sleeve 9 and the bending strip 6, and will not be easily affected by external wind force, environment, etc., causing the top cover 8 to loosen after installation.

[0031] (5) The cabinet door 4 is movably connected to the front frame 2 of the cabinet via hinges and latches. The back of the cabinet rear frame 3 has a wiring port for easy line access, which will not be elaborated here.

[0032] Reference manual attached Figure 1 Instruction manual attached Figure 4 It is further explained that air vents 7 are provided on the outer sides of the front frame 2 and the rear frame 3 of the cabinet, and an air vent frame 10 is fixedly connected to the outer side of the bent sleeve 9 and connected to the air vent 7. The contact surfaces of the air vent frame 10 with the front frame 2 and the rear frame 3 of the cabinet are provided with sealing gaskets 1001. A heat dissipation vent connected to the air vent 7 is provided on the outer side of the air vent frame 10. The heat dissipation vent includes a horizontal channel 1002 that is horizontally connected to the air vent 7 and an inclined channel 1003 that is inclined to connect to the outside. The horizontal channel 1002 and the inclined channel 1003 are connected. The inclined channel 1003 is inclined downward, and a filter screen 1004 is provided at the outer end of the inclined channel 1003.

[0033] Based on the above structure, this device, considering the heat dissipation problem of the internal components of the cabinet, provides air vents 7 on the outer sides of the front frame 2 and rear frame 3 of the cabinet for heat dissipation. After redesigning the cabinet body, the device uses an air vent frame 10 to protect the air vent 7 by fitting it against the outer sides of the front frame 2 and rear frame 3. The sealing gasket 1001 further enhances the sealing effect when the air vent frame 10 contacts the front frame 2 and rear frame 3. The heat emitted from the air vent 7 passes through the heat dissipation vent on the outer side of the air vent frame 10, and is then discharged from the horizontal channel 1002 through the inclined channel 1003 to the outside of the air vent frame 10. Furthermore, the downward-sloping inclined channel 1003 (preferably with an inclination angle between 30° and 60°), combined with the outer filter 1004, prevents dust and moisture from entering the air vent 7 through the heat dissipation vent and subsequently into the cabinet body, thus avoiding damage to the internal components and providing a protective effect.

[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A thermal control device for a thermal power plant, comprising a cabinet body disposed on the upper end of a mounting base (1), the cabinet body being composed of a front frame (2) and a rear frame (3) connected front and rear, and a top cover (8) at the upper end, wherein the controller, I / O cards, and communication modules are all installed on the inner wall of the rear frame (3), characterized in that, The front frame (2) of the cabinet is provided with a matching cabinet door (4). The bottom back of the cabinet rear frame (3) is fixedly connected with a mounting plate (5), and the mounting plate (5) is fixedly connected to the upper end of the mounting base (1) by bolts. The outer sides of the mating surfaces of the front frame (2) and the rear frame (3) of the cabinet are both longitudinally fixedly connected with bent clips (6). The bottom sides of the top cover (8) are fixedly connected with bent sleeves (9), and the bent sleeves (9) slide and engage with the outer side of the adjacent bent clips (6) after mating.

2. The thermal control equipment for a thermal power plant according to claim 1, characterized in that, Rubber pads are provided between the adjacent contact surfaces of the mounting base (1), the front frame (2) of the cabinet, the rear frame (3) of the cabinet, and the top cover (8).

3. The thermal control equipment for a thermal power plant according to claim 2, characterized in that, The bottom of the front frame (2) of the cabinet is fixedly connected to a T-shaped slider (201), and the upper surface of the mounting base (1) is provided with a T-shaped groove (202) that slides in contact with the T-shaped slider (201).

4. The thermal control equipment for a thermal power plant according to claim 3, characterized in that, The front frame (2) and rear frame (3) of the cabinet are provided with air vents (7) on the outside, and the outside of the bent sleeve (9) is fixedly connected with an air vent frame (10) that is connected to the air vent (7). The contact surfaces of the air vent frame (10) with the front frame (2) and rear frame (3) of the cabinet are provided with sealing gaskets (1001). The outside of the air vent frame (10) is provided with a heat dissipation vent that is connected to the air vent (7).

5. A thermal control device for a thermal power plant according to claim 4, characterized in that, The heat dissipation port includes a horizontal channel (1002) that is horizontally connected to the air outlet (7) and an inclined channel (1003) that is inclined to connect to the outside. The horizontal channel (1002) and the inclined channel (1003) are connected.

6. The thermal control equipment for a thermal power plant according to claim 5, characterized in that, The inclined channel (1003) is inclined downward, and a filter screen (1004) is provided at the outer end of the inclined channel (1003).

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