Safety protection equipment for boiler of thermal power plant

Abstract

The utility model relates to the technical field of thermal power plant boilers, and discloses thermal power plant boiler safety protection equipment which comprises a bottom plate, a supporting frame is fixedly connected to the middle of the top wall of the bottom plate, the front side and the rear side of the inner wall of the supporting frame are each fixedly connected with two fixing plates, and one side of each fixing plate is fixedly connected with a swing air cylinder. The output end of the swing air cylinder is fixedly connected with a rotating rod, the top end of the rotating rod is rotationally connected with a rotating column, one side of the rotating column is rotationally connected with a connecting plate through a torsional spring, the left side and the right side of the top wall of the connecting plate are both fixedly connected with protection clamps, and boiler equipment is fixedly installed at the top of the supporting frame. According to the boiler protection device, the connecting plate and the protection clamp can be attached to the outer side of the boiler equipment through rotation of the rotating rod, so that the boiler equipment is protected, on the contrary, opening is completed, the situation that the boiler equipment is damaged due to external collision is reduced, and the situation that operation of an operator on the boiler is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power plant boilers, in particular to a thermal power plant boiler safety protection device. Background Art

[0002] A thermal power plant is an electric power plant that uses the combustion of fuel to generate heat energy and then uses steam to drive steam turbines to generate electricity. It mainly relies on the combustion of coal, natural gas and fuel oil to generate high-temperature and high-pressure steam through boilers. This steam drives the connected steam turbine to rotate, and the steam turbine then drives the generator to generate electricity.

[0003] The boiler of a thermal power plant is one of the three main equipment in a thermal power plant. It consists of a furnace, a superheater, an air preheater and an economic air preheater. The furnace is the main area for fuel combustion, the superheater is used to heat the steam to a high temperature, and the economizer is used to recover the waste heat in the flue gas to improve efficiency. It is an important equipment for generating steam and driving the steam turbine to generate electricity.

[0004] The existing method of protecting boilers is to install guardrails to prevent objects from colliding with the boilers. However, the protection range of the guardrails is limited, and thus the purpose of protection cannot be achieved well. At the same time, it affects the operator's operation of the boiler and increases the difficulty of operation. Therefore, a thermal power plant boiler safety protection device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a thermal power plant boiler safety protection device, which aims to improve the problem that the protection range of the guardrail is limited, which cannot provide good protection and affects the operator's operation of the boiler, increasing the difficulty of operation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thermal power plant boiler safety protection device, including a base plate, a support frame fixedly connected to the middle of the top wall of the base plate, and two fixed plates fixedly connected to the front and rear sides of the inner wall of the support frame, one side of the fixed plate is fixedly connected to a swing cylinder, the output end of the swing cylinder is fixedly connected to a rotating rod, the top of the rotating rod is rotatably connected to a rotating column, one side of the rotating column is rotatably connected to a connecting plate through a torsion spring, and the left and right sides of the top wall of the connecting plate are fixedly connected to protective clamps, a boiler equipment is fixedly installed on the top of the support frame, the top wall of the boiler equipment is connected to a connecting shell, two reinforcement plates are fixedly connected to the middle of the support frame, and a cooling mechanism is provided at the rear end of the left side of the top wall of the base plate, and the cooling mechanism is used to cool the boiler equipment and improve its service life.

[0007] As a further description of the above technical solution:

[0008] The cooling mechanism includes a power fan, the bottom wall of the power fan is fixedly connected to the left rear end of the top wall of the bottom plate, the output end of the power fan is connected to a three-way pipe, the middle part of the three-way pipe is fixedly installed with a control valve, the front and rear ends of the three-way pipe are connected to cooling nozzles, the adjacent sides of two cooling nozzles are respectively fixedly connected to the front and rear sides of the connecting shell, the adjacent sides of multiple protective clips are fixedly connected to multiple arc plates, and the adjacent sides of multiple arc plates are provided with guide grooves.

[0009] As a further description of the above technical solution:

[0010] The cooling mechanism further comprises two rubber rings, the inner walls of the two rubber rings being fixedly mounted on the front and rear ends of the outer walls of the corresponding three-way pipes.

[0011] As a further description of the above technical solution:

[0012] A control switch is fixedly connected to the front side of the top wall of the base plate, and the control switch is electrically connected to the swing cylinder and the power fan respectively.

[0013] As a further description of the above technical solution:

[0014] A protective cover is provided on the top of the bottom plate, and the bottom of the protective cover is rotatably connected to the top wall of the control switch through a hinge.

[0015] As a further description of the above technical solution:

[0016] The cooling mechanism further comprises a rubber sleeve, the inner wall of which is fixedly connected to the bottom of the left end of the control valve.

[0017] As a further description of the above technical solution:

[0018] Two support plates are fixedly connected to the left and right sides of the inner wall of the bottom plate, and the top walls of the plurality of support plates are threadedly connected with expansion bolts.

[0019] As a further description of the above technical solution:

[0020] The middle parts of the plurality of expansion bolts are all fixedly connected with rubber rings, and the plurality of rubber rings are all annular in design.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the connecting plate and the two protective clips are rotated together by the rotation of the rotating rod. Thus, under the connection of the torsion spring, the connecting plate and the protective clips can be attached to the outer side of the boiler equipment, thereby protecting the boiler equipment and reducing the possibility of damage caused by external collisions. By the reverse rotation of multiple rotating rods, the connecting plate and the protective clips can be opened to the outside, thereby achieving the purpose of operating the boiler equipment, avoiding the situation of affecting the operator's operation of the boiler, and reducing the difficulty of operation.

[0023] 2. In the present invention, the flow rate of the airflow delivered by the power fan when it is working can be adjusted by adjusting the control valve, and then the airflow is ejected through the two cooling nozzles, thereby completing the heat dissipation of the boiler equipment over a wider range under the guidance of the arc plate and the guide groove, thereby increasing the heat dissipation range, improving the heat dissipation efficiency, and extending the service life of the boiler equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a thermal power plant boiler safety protection device proposed by the utility model;

[0025] Figure 2 This is a top view of a thermal power plant boiler safety protection device proposed by the utility model;

[0026] Figure 3 This is a schematic structural diagram of a rotating rod of a thermal power plant boiler safety protection device proposed by the utility model;

[0027] Figure 4 This is a schematic structural diagram of a splint for a thermal power plant boiler safety protection device proposed by the utility model;

[0028] Figure 5 The present invention is a schematic diagram of a cooling mechanism of a thermal power plant boiler safety protection device.

[0029] Legend:

[0030] 1. Base plate; 2. Cooling mechanism; 201. Power fan; 202. Tee pipe; 203. Control valve; 204. Cooling nozzle; 205. Arc plate; 206. Guide groove; 207. Rubber ring; 208. Rubber sleeve; 3. Support frame; 4. Fixing plate; 5. Swing cylinder; 6. Rotating rod; 7. Rotating column; 8. Connecting plate; 9. Protective clamp; 10. Boiler equipment; 11. Connecting shell; 12. Reinforcement plate; 13. Control switch; 14. Protective cover; 15. Support plate; 16. Expansion bolt; 17. Rubber ring. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 2 and Figure 4 The utility model provides an embodiment: a safety protection device for a boiler in a thermal power plant, comprising a bottom plate 1, a support frame 3 is fixedly connected to the middle of the top wall of the bottom plate 1, two fixed plates 4 are fixedly connected to the front and rear sides of the inner wall of the support frame 3, one side of the fixed plate 4 is fixedly connected to a swing cylinder 5, the output end of the swing cylinder 5 is fixedly connected to a rotating rod 6, the top of the rotating rod 6 is rotatably connected to a rotating column 7, one side of the rotating column 7 is rotatably connected to a connecting plate 8 through a torsion spring, and the left and right sides of the top wall of the connecting plate 8 are fixedly connected to protective clips 9, a boiler equipment 10 is fixedly installed on the top of the support frame 3, the top wall of the boiler equipment 10 is connected to a connecting shell 11, and two reinforcing plates 12 are fixedly connected to the middle of the support frame 3;

[0033] Specifically, by starting the swing cylinder 5, the rotating rod 6 is driven and the rotating column 7 is driven to rotate at the same time, so that the connecting plate 8 and the protective clamp 9 can be rotated synchronously in the direction of the boiler equipment 10. Under the rotation connection of the torsion spring, the connecting plate 8 and the protective clamp 9 can be attached to the outside of the boiler equipment 10, thereby protecting the boiler equipment and reducing damage to the boiler equipment caused by external collisions. When the boiler equipment needs to be operated, by controlling multiple rotating rods 6 to rotate in opposite directions, the connecting plate 8 and the protective clamp 9 can be opened to the outside, thereby facilitating the operation of the boiler equipment, avoiding interference to the operator when operating the boiler equipment, and reducing the difficulty of operation.

[0034] Reference Figure 1 、 Figure 3 and Figure 5 A cooling mechanism 2 is provided at the rear left side of the top wall of the bottom plate 1. The cooling mechanism 2 is used to cool the boiler equipment 10 to improve its service life. The cooling mechanism 2 includes a power fan 201. The bottom wall of the power fan 201 is fixedly connected to the rear left side of the top wall of the bottom plate 1. The output end of the power fan 201 is connected with a three-way pipe 202. A control valve 203 is fixedly installed in the middle of the three-way pipe 202. The front and rear ends of the three-way pipe 202 are both connected with cooling nozzles 204. The adjacent sides of the two cooling nozzles 204 are respectively fixedly connected to the front and rear sides of the connecting shell 11. The adjacent sides of the multiple protective clips 9 are fixedly connected with multiple curved plates 205. The adjacent sides of the multiple curved plates 205 are each provided with a guide groove 206.

[0035] Specifically, by starting the power fan 201 and adjusting the control valve 203 at the same time, the flow rate of the airflow extracted and transported by the power fan 201 can be adjusted, and the airflow can be injected at high pressure through the cooling nozzle 204 through the three-way pipe 202. During the injection process, the airflow will be guided by the curved plate 205 and the guide groove 206, so that it moves along the arc, so that the heat dissipation airflow can dissipate heat in a wider range of the boiler equipment 10, thereby improving the heat dissipation efficiency, extending the service life of the boiler equipment, and reducing the maintenance cost of the equipment.

[0036] Reference Figure 2 、 Figure 3 and Figure 4 The cooling mechanism 2 also includes two rubber rings 207, the inner walls of the two rubber rings 207 are fixedly mounted on the front and rear ends of the outer walls of the corresponding three-way pipe 202; the front side of the top wall of the bottom plate 1 is fixedly connected to the control switch 13, and the control switch 13 is electrically connected to the swing cylinder 5 and the power fan 201 respectively; a protective cover 14 is provided on the top of the bottom plate 1, and the bottom of the protective cover 14 is rotatably connected to the top wall of the control switch 13 through a hinge;

[0037] Specifically, the rubber ring 207 increases the service life of the connection of the tee pipe 202, thereby reducing wear. The control switch 13 is electrically connected to the swing cylinder 5 and the power fan 201 respectively, so that the control switch 13 can complete the opening and closing of the device. The protective cover 14 can protect the control switch 13. The model of the swing cylinder 5 used in the utility model is the swing cylinder QGK, the model of the power fan 201 is the axial flow fan T4-72, and the model of the control switch 13 is the control switch lw2.

[0038] Reference Figure 1 、 Figure 4 and Figure 5 The cooling mechanism 2 further includes a rubber sleeve 208, the inner wall of which is fixedly connected to the bottom of the left end of the control valve 203; two support plates 15 are fixedly connected to the left and right sides of the inner wall of the bottom plate 1, and the top walls of the multiple support plates 15 are threadedly connected with expansion bolts 16; the middle parts of the multiple expansion bolts 16 are fixedly connected with rubber rings 17, and the multiple rubber rings 17 are all annular in design;

[0039] Specifically, the rubber sleeve 208 improves the anti-slip effect of the handle of the control valve 203, the support plate 15 and the expansion bolt 16 facilitate fixing the device to the ground, and the rubber ring 17 reduces the rotation damage of the expansion bolt 16 to the support plate 15.

[0040] Working principle: When protection begins, the rotating rod 6 is driven by the swing cylinder 5, causing the rotating rod 6 to drive the rotating column 7 to rotate, thereby causing the connecting plate 8 and the protective clamp 9 to rotate together toward the boiler equipment 10. Under the connection of the torsion spring, the connecting plate 8 can be attached to the outside of the boiler equipment 10 to protect the boiler equipment. When the boiler equipment needs to be operated, the connecting plate 8 and the protective clamp 9 can be opened outward by rotating the multiple rotating rods 6 in the opposite direction, thereby achieving the purpose of operating the boiler equipment;

[0041] In addition, by starting the power fan 201 and adjusting the control valve 203 at the same time, the flow rate of the airflow extracted and transported by the power fan 201 can be adjusted, and then the airflow is sprayed at high pressure through the cooling nozzle 204 through the three-way pipe 202. At the same time, the airflow moves in an arc under the guidance of the arc plate 205 and the guide groove 206, thereby completing the heat dissipation of the boiler equipment 10 over a larger range.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A boiler safety protection device for a thermal power plant, comprising a bottom plate (1), characterized in that: The middle part of the top wall of the bottom plate (1) is fixedly connected to a support frame (3), and the front and rear sides of the inner wall of the support frame (3) are fixedly connected to two fixed plates (4). One side of the fixed plate (4) is fixedly connected to a swing cylinder (5), and the output end of the swing cylinder (5) is fixedly connected to a rotating rod (6). The top end of the rotating rod (6) is rotatably connected to a rotating column (7), and one side of the rotating column (7) is rotatably connected to a connecting plate (8) through a torsion spring. The left and right sides of the top wall of the connecting plate (8) are fixedly connected to protective clips (9). A boiler device (10) is fixedly installed on the top of the support frame (3), and the top wall of the boiler device (10) is connected to a connecting shell (11). The middle part of the support frame (3) is fixedly connected to two reinforcing plates (12). A cooling mechanism (2) is provided at the rear end of the left side of the top wall of the bottom plate (1). The cooling mechanism (2) is used to cool the boiler device (10) to improve its service life.

2. A thermal power plant boiler safety protection device according to claim 1, characterized in that: The cooling mechanism (2) comprises a power fan (201), the bottom wall of the power fan (201) is fixedly connected to the left rear end of the top wall of the bottom plate (1), the output end of the power fan (201) is connected to a three-way pipe (202), a control valve (203) is fixedly installed in the middle of the three-way pipe (202), the front and rear ends of the three-way pipe (202) are both connected to cooling nozzles (204), the adjacent sides of two cooling nozzles (204) are respectively fixedly connected to the front and rear sides of the connecting shell (11), the adjacent sides of the plurality of protective clips (9) are fixedly connected to a plurality of arc plates (205), and the adjacent sides of the plurality of arc plates (205) are each provided with a guide groove (206).

3. A thermal power plant boiler safety protection device according to claim 2, characterized in that: The cooling mechanism (2) further comprises two rubber rings (207), the inner walls of the two rubber rings (207) being fixedly mounted on the front and rear ends of the outer walls of the corresponding three-way pipe (202).

4. A thermal power plant boiler safety protection device according to claim 2, characterized in that: A control switch (13) is fixedly connected to the front side of the top wall of the bottom plate (1), and the control switch (13) is electrically connected to the swing cylinder (5) and the power fan (201) respectively.

5. A thermal power plant boiler safety protection device according to claim 4, characterized in that: A protective cover (14) is provided on the top of the base plate (1), and the bottom of the protective cover (14) is rotatably connected to the top wall of the control switch (13) via a hinge.

6. A thermal power plant boiler safety protection device according to claim 2, characterized in that: The cooling mechanism (2) further comprises a rubber sleeve (208), the inner wall of the rubber sleeve (208) being fixedly connected to the bottom of the left end of the control valve (203).

7. The thermal power plant boiler safety protection device according to claim 1, characterized in that: Two support plates (15) are fixedly connected to the left and right sides of the inner wall of the bottom plate (1), and the top walls of the plurality of support plates (15) are threadedly connected to expansion bolts (16).

8. The thermal power plant boiler safety protection device according to claim 7, characterized in that: The middle parts of the plurality of expansion bolts (16) are all fixedly connected with a rubber ring (17), and the plurality of rubber rings (17) are all annular in design.

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