Power plant ash bucket ash removal emergency safety device, ash bucket system and working method

Abstract

The invention relates to a power plant ash bucket ash removal first-aid safety device, an ash bucket system and a working method.The power plant ash bucket ash removal first-aid safety device comprises a support, the support is used for being arranged at a crawling ladder inlet and outlet of an overhaul platform of an ash bucket, and a lifting mechanism is arranged at the top of the support and connected with a safety belt used for being worn on the body of an ash removal person through a rope; the safety device further comprises a vital sign detection element used for being worn on a deashing person, the vital sign detection element and the lifting mechanism are connected with the control system, and the life safety of the deashing person is guaranteed through the safety device.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection for ash hopper cleaning operations, and in particular to an ash hopper cleaning emergency installation device, an ash hopper system and a working method for a power plant. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Ash hopper cleaning is a high-risk operation in confined and enclosed spaces. Operators need to enter the ash hopper several meters deep to perform cleaning operations. Usually, the machine is shut down before cleaning. After ash removal and cooling, protective tools and supervisors are equipped to enter the hopper to perform operations. Ash hopper cleaning in power plants is a high-risk operation in a confined space. Sometimes, the ash removal is not thorough, and there is still a large amount of ash accumulation hanging on the upper part of the ash hopper. When there are personnel working inside, once an ash slag collapse accident occurs, most of the rescue work cannot be completed within the golden time. At present, when performing ash hopper cleaning operations, the safety of operators is usually ensured by wearing labor protection supplies (professional dust-proof clothing, dust masks), special supervision, and safety belts. Once a special situation occurs during the operation, they can only save themselves or rely on supervisors for rescue in the first time. However, due to the closed space and narrow entrances and exits, it is often difficult to send the cleaning personnel to the maintenance platform for rescue in the first time after the accident, and the life safety of the personnel cannot be guaranteed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a power plant ash hopper cleaning emergency safety device, an ash hopper system and a working method, which can better protect the life safety of ash cleaning operators.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides a power plant ash hopper cleaning emergency safety device, comprising a bracket, the bracket is used to be arranged at the ladder entrance and exit of the ash hopper maintenance platform, a lifting mechanism is provided on the top of the bracket, the lifting mechanism is connected to a safety belt worn on the body of the cleaning personnel through a rope, and also includes a vital sign detection element worn on the cleaning personnel, the vital sign detection element and the lifting mechanism are connected to the control system;

[0007] The control system can receive the emergency signal transmitted by the vital sign detection element and control the operation of the lifting mechanism to lift the dust cleaning personnel to the maintenance platform.

[0008] Optionally, an alarm mechanism is also included, and the alarm mechanism is connected to a control system, and the control system can control the alarm mechanism to sound an alarm after receiving an emergency signal.

[0009] Optionally, the bracket includes a first support frame and a second support frame arranged in parallel, a crossbeam is provided between the top ends of the first support frame and the second support frame, a lifting mechanism is installed on the crossbeam, and the bottom ends of the first support frame and the second support frame are used to be fixed on the maintenance platform.

[0010] Optionally, the first support frame and the second support frame both include a first support rod and a second support rod distributed in an inverted V shape, the top ends of the first support rod and the second support rod are fixed to the end of the cross beam, and the bottom ends of the first support rod and the second support rod are provided with clamping parts for clamping and fixing with the maintenance platform.

[0011] Optionally, the clamping member adopts a U-shaped plate, including a vertical portion and horizontal portions fixed at both ends of the vertical portion, and a space for the maintenance platform to extend into is provided between the two horizontal portions to achieve clamping of the clamping member and the maintenance platform.

[0012] Optionally, the clamping parts at the bottom ends of the first support rod and the second support rod are fixed to the top end of the reinforcement rod, the bottom ends of the two reinforcement rods are cross-connected and rotatably connected to the hook part, the hook part is used to cooperate with the ladder, and a locking part is provided between the hook part and the reinforcement rod.

[0013] Optionally, the first support frame and the second support frame are detachably connected to the end of the crossbeam, and the reinforcement rod is detachably connected to the clamping piece.

[0014] In the second aspect, an embodiment of the present invention provides a power plant ash hopper system, comprising an ash hopper and the power plant ash hopper cleaning emergency safety device as described in the first aspect, an inspection platform and a ladder inside the ash hopper, the inspection platform being provided with a ladder entrance and exit corresponding to the top of the ladder, and the bracket being fixed at the ladder entrance and exit.

[0015] Optionally, the ash hopper is provided with a switch door for entering and exiting the maintenance platform.

[0016] On the third aspect, an embodiment of the present invention provides a working method for an ash hopper system of a power plant, wherein a control system receives a vital sign detection element in real time to detect the vital characteristic parameters of a ash cleaning personnel in real time. When the vital characteristic parameters are abnormal, the vital sign parameter detection element sends an emergency signal to the control system, and the control system controls the lifting mechanism to work and lift the ash cleaning personnel to a maintenance platform.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The power plant ash hopper cleaning first aid safety device of the present invention comprises a bracket, a lifting mechanism, and a vital sign detection element. The lifting mechanism and the vital sign detection element are both connected to the control system. The vital sign detection element can detect the vital signs of the cleaning personnel in real time. When the vital signs are abnormal, an emergency signal can be sent to the control system. The control system can receive the emergency signal transmitted by the vital sign detection element and control the lifting mechanism to lift the cleaning personnel to the maintenance platform as soon as possible. There is no need for the first aid personnel to enter and exit the narrow space to lift the cleaning personnel to the maintenance platform, so that the first aid personnel can take first aid measures for the cleaning personnel on the maintenance platform as soon as possible, thereby saving rescue time and ensuring the life safety of the cleaning personnel.

[0019] 2. In the power plant ash hopper cleaning emergency safety device of the present invention, the first support rod and the second support rod are arranged at the ladder entrance and exit of the maintenance platform, and are connected to the maintenance platform by a U-shaped plate. There is no need to improve the structure of the ash hopper during installation, which is convenient for installation.

[0020] 3. The power plant ash hopper cleaning first aid safety device of the present invention is provided with an alarm mechanism, and the alarm mechanism is connected to the control system. The control system can control the alarm mechanism to alarm after receiving the first aid signal, so that the first aid personnel can take measures to prepare for first aid as soon as possible after the ash cleaning personnel are in danger, thereby further ensuring the life safety of the ash cleaning personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0023] Figure 2 This is a front view of the overall structure of Example 1 of the present invention;

[0024] Figure 3 is a side view of the overall structure of embodiment 1 of the present invention;

[0025] Figure 4 is a schematic diagram of the support structure of Example 1 of the present invention;

[0026] Among them, 1. bracket, 2. ash hopper, 3. maintenance platform, 4. ladder entrance and exit, 5. lifting mechanism, 6. rope, 7. safety belt, 8. vital sign detection element, 9. ladder, 10. sound and light alarm, 11. control cabinet, 12. switch door;

[0027] 1-1. First support rod, 1-2. Second support rod, 1-3. Slot member, 1-4. Crossbeam, 1-5. Connecting member, 1-6. Reinforcement rod, 1-7. Hook member. DETAILED DESCRIPTION

[0028] Example 1

[0029] This embodiment provides a power plant ash hopper cleaning emergency safety device, such as Figure 1-Figure 3 As shown, it includes a bracket 1, which is used to be set at the ladder entrance and exit 4 of the maintenance platform 3 of the ash hopper 2. A lifting mechanism 5 is provided on the top of the bracket 1. The lifting mechanism 5 is connected to one end of a rope 6, and the other end of the rope 6 is connected to a safety belt 7. The safety belt 7 is used to be worn on the body of the ash cleaning personnel. The lifting mechanism 5 can lift the ash cleaning personnel through the rope 6 and the safety belt 7. The power plant ash hopper cleaning first aid safety device also includes a vital sign detection element 8, which is used to be worn on the body of the ash cleaning personnel to perform real-time detection of the vital signs of the ash cleaning personnel. The vital sign detection element 8 and the lifting mechanism 5 are both connected to the control system. The vital sign detection element 8 can transmit the detected life feature information to the control system, and the control system can control the lifting mechanism 5 to work. When the life feature information detected by the vital sign detection element 8 is abnormal, it proves that the ash cleaning personnel needs first aid. The vital sign detection element 8 sends a first aid signal to the control system, and the control system controls the lifting mechanism 5 to work and lift the ash cleaning personnel to the maintenance platform 3.

[0030] The vital signs detection element 8 can be an existing wearable life characteristics detection instrument, such as the safety warning device disclosed in patent CN206117797U, or the anti-disassembly wristband label structure disclosed in patent CN217547410U, etc. Existing equipment can be used and will not be described in detail here. When in use, the vital signs detection element 8 is worn on the wrist of the cleaning personnel to perform real-time detection of the cleaning personnel's vital characteristics such as heart rate, blood pressure and blood oxygen.

[0031] like Figure 4 As shown, the bracket 1 includes a first support frame and a second support frame arranged in parallel, and the top ends of the first support frame and the second support frame are detachably connected with beams 1-4, and a lifting mechanism 5 is arranged on the beams 1-4.

[0032] In this embodiment, the first support frame and the second support frame both adopt an inverted V-shaped structure, including a first support rod 1-1 and a second support rod 1-2 cross-connected at the top, the tops of the first support rod 1-1 and the second support rod 1-2 are both connected to the slot member 1-3, the tops of the first support rod 1-1 and the second support rod 1-2 are both welded and fixed to the slot member 1-3, the slot member 1-3 adopts an inverted U-shaped structure to form a slot with an open top, the crossbeam 1-4 is placed in the slot, and the crossbeam 1-4 is supported by the slot member 1-3 at the top of the first support frame and the second support frame, wherein the first support frame and / or the slot member 1-3 are also provided with a first fixing hole, and correspondingly, the crossbeam 1-4 is provided with a second fixing hole matching the first fixing hole, the slot member 1-3 of the first support frame and / or the second support frame can be detachably fixedly connected to the crossbeam 1-4 through the first fixing hole, the second fixing hole, bolts, and nuts, thereby realizing the detachable connection of the crossbeam 1-4 with the first support frame and the second support frame.

[0033] The bottom ends of the first support rod 1-1 and the second support rod 1-2 are provided with a clamping piece 1-5, which is used to be clamped and connected with the edge of the ladder entrance and exit 4 to fix the first support frame and the second support frame on the maintenance platform 3.

[0034] In this embodiment, the clamping member 1-5 adopts a horizontally arranged U-shaped plate, including a vertical portion and horizontal portions arranged on both sides of the vertical portion. The space between the two horizontal portions forms a slot, and the edge of the ladder entrance and exit 4 of the maintenance platform 3 extends into the formed slot to realize the clamping connection between the clamping member 1-5 and the maintenance platform 3.

[0035] The bottom ends of the four clamping parts 1-5 are detachably connected to the top end of the reinforcement rod 1-6 by bolts. Specifically, a flange is provided at the top end of the reinforcement rod 1-6, and the top end of the reinforcement rod 1-6 is detachably fixedly connected to the bottom surface of the clamping part 1-5 by the flange and bolts.

[0036] The bottom ends of the two reinforcement rods 1-6 connected by the two clips 1-5 of the first support frame are crossed and connected to the connecting shaft, and a hook part 1-7 is rotatably connected to the connecting shaft, and the hook part 1-7 is used to hang and cooperate with the ladder 9 in the ash hopper. The bottom ends of the two reinforcement rods 1-6 connected by the two clips 1-5 of the second support frame are crossed and connected to the connecting shaft, and a hook part 1-7 is rotatably connected to the connecting shaft, and the hook part 1-7 is used to hang and cooperate with the ladder 9 in the ash hopper 2.

[0037] By setting the reinforcing rods 1 - 6 , the stability of the cooperation between the first support frame and the second support frame and the maintenance platform 3 can be improved, thereby ensuring that the entire support is stably supported on the maintenance platform 3 .

[0038] The bracket 1 of this embodiment is directly connected to the edge of the ladder entrance and exit 4 through the clamping parts 1-5, and the hook parts 1-7 are connected to the ladder 9. The entire bracket 1 can be directly installed on the maintenance platform 3 without the need to improve the ash hopper 2 and its maintenance platform 3, and is easy to use.

[0039] The first support frame and the second support frame are detachably connected to the crossbeam 1-4, and the reinforcement rod 1-6 is detachably connected to the clamping piece 1-5. When entering and exiting the ash hopper 2, the entire bracket 1 can be disassembled and then assembled after entering the ash hopper 2, which is convenient for carrying, assembling and disassembling in the narrow space of the maintenance passage when entering and exiting the ash hopper 2.

[0040] A lifting mechanism 5 is installed on the beam 1-4. In this embodiment, the lifting mechanism 5 adopts an existing electric hoist. The electric hoist can adopt existing equipment, and its specific structure is not described in detail here. The hook of the electric hoist is connected to one end of the rope 6, and the other end of the rope 6 is connected to the safety belt 7.

[0041] The safety belt 7 can be an existing safety belt for high-altitude operations, which has a metal ring. The rope 6 is connected to the metal ring to achieve connection with the safety belt 7. When in use, the safety belt 7 is worn on the body of the dust cleaning personnel to prevent the dust cleaning personnel from falling, thereby ensuring the safety of the dust cleaning personnel.

[0042] The first aid safety device also includes an alarm mechanism, which includes an intercom for the ash cleaning personnel to carry with them, so as to facilitate timely communication between the ash cleaning personnel in the ash hopper and the monitoring personnel outside the ash hopper, and also includes an audible and visual alarm 10, which is used to be set outside the ash hopper 2.

[0043] In this embodiment, the vital signs detection element 8 is connected to the control system through a wireless transmission module, the electric hoist is connected to the control system through wireless transmission or wired transmission, the sound and light alarm 10 is connected to the control system through wired transmission, and the control system is installed in a control cabinet 11. The control cabinet 11 is used to be fixed on a platform outside the ash hopper 2. A display screen is also provided on the control cabinet 11, and the display screen is connected to the control system. The life characteristic parameters detected by the vital signs detection element can be displayed on the display screen, and the staff can also send instructions to the control system through the display screen.

[0044] The control system is also connected to a remote monitoring terminal via a wireless transmission module. The remote monitoring terminal uses a computer or a mobile phone, etc. The information detected by the vital sign detection element can be transmitted to the remote monitoring terminal, and the staff can also send instructions to the control system through the remote monitoring terminal.

[0045] In this embodiment, a remote controller is also included for the dust cleaning personnel to carry with them. The remote controller is connected to the control system via a wireless transmission module. The personnel can send instructions to the control system via the remote controller, thereby controlling the operation of the lifting mechanism via the control system.

[0046] The lifting mechanism of this embodiment is subject to three-level control management. The emergency signal emitted by the life feature detection element 8 has priority control. After being triggered, the lifting mechanism 5 will lift the cleaning personnel to the maintenance platform 2 as soon as possible. The cleaning monitoring personnel have secondary control rights and can send instructions to the control system through the display screen or the remote monitoring platform to control the lifting and lowering of the lifting mechanism 5. The cleaning personnel have three-level control rights of the lifting mechanism and can control the lifting and lowering of the lifting mechanism 5 through the remote control to place themselves at the set working height in the ash hopper.

[0047] Example 2

[0048] This embodiment provides a power plant ash hopper system, such as Figure 1-Figure 3 As shown, it includes an ash hopper 2, a maintenance platform 3 is arranged inside the ash hopper, a ladder inlet and outlet 4 is arranged in the middle of the maintenance platform 3, the ladder inlet and outlet 4 corresponds to the top of the ladder 9, and the ladder 9 is fixed inside the ash hopper 2. The above structure can adopt the existing ash hopper structure, which is described in detail in this part, and also includes the power plant ash hopper cleaning emergency safety device described in Example 1.

[0049] The bracket 1 is fixed at the ladder entrance 4 of the maintenance platform, the four clamping parts 1-5 are clamped and connected with the edges of the ladder entrance 4, and the hook parts 1-7 are hooked on the ladder 9, thereby realizing the installation of the bracket 1 on the maintenance platform.

[0050] The control cabinet 11 and the sound and light alarm 10 are installed on a platform outside the ash hopper 2.

[0051] The ash hopper 2 is also provided with a switch door 12 corresponding to the maintenance platform to facilitate the staff to enter and exit the maintenance platform.

[0052] The remaining structures of the ash hopper 2 system can adopt the existing technology and will not be described in detail here.

[0053] Example 3

[0054] The present embodiment provides a working method of the power plant ash hopper system described in Embodiment 2. The ash cleaning personnel wear a safety belt 7 and a vital sign detection element 8. After the safety belt 7 is connected to the rope 6 through a metal ring, the ash cleaning personnel moves to the cleaning position of the ash hopper 2 through a ladder 9 and then performs ash cleaning. The ash cleaning personnel controls the operation of the lifting mechanism 5 through a remote control to meet the ash cleaning needs of the ash cleaning personnel at different positions.

[0055] The vital sign detection element 8 performs real-time detection of parameters such as the heart rate, blood pressure and blood oxygen of the dust cleaning personnel. When the vital sign detection element 8 detects that the vital sign parameters are abnormal, it sends an emergency signal to the control system. The control system controls the electric hoist to work, and the electric hoist lifts the dust cleaning personnel to the maintenance platform 2 through the rope 6. At the same time, the control system controls the alarm mechanism to work, the sound and light alarm 10 sounds an alarm, and sends an alarm signal to the remote monitoring terminal. The emergency personnel immediately take measures to enter the maintenance platform 3 through the switch door 12 to take corresponding first aid measures for the dust cleaning personnel.

[0056] It is understandable that if the cleaning monitoring personnel find that there is a dangerous condition in the ash hopper, they can send instructions to the control system through the display screen or the remote monitoring terminal, and the control system controls the lifting mechanism 5 to lift the cleaning personnel to the maintenance platform 3.

[0057] The power plant ash hopper system and working method of the present embodiment has a control system that can receive emergency signals transmitted by the vital signs detection element and control the operation of the lifting mechanism to lift the ash cleaning personnel to the maintenance platform as soon as possible. There is no need for emergency personnel to enter and exit a narrow space to lift the ash cleaning personnel to the maintenance platform, so that the emergency personnel can take emergency measures on the maintenance platform as soon as possible, saving rescue time and ensuring the life safety of the ash cleaning personnel. Moreover, through the setting of the alarm mechanism, the control system can control the alarm mechanism to sound an alarm after receiving the emergency signal, so that the emergency personnel can take measures to prepare for emergency treatment as soon as possible after the ash cleaning personnel are in danger, further ensuring the life safety of the ash cleaning personnel.

[0058] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power plant ash hopper cleaning emergency safety device, characterized in that: It includes a bracket, which is used to be arranged at the ladder entrance and exit of the ash hopper maintenance platform. A lifting mechanism is provided on the top of the bracket. The lifting mechanism is connected to a safety belt worn by a cleaning personnel through a rope. It also includes a vital sign detection element worn by the cleaning personnel. The vital sign detection element and the lifting mechanism are connected to the control system. The control system can receive the emergency signal transmitted by the vital sign detection element and control the operation of the lifting mechanism to lift the dust cleaning personnel to the maintenance platform.

2. A power plant ash hopper cleaning emergency safety device as claimed in claim 1, characterized in that: It also includes an alarm mechanism, which is connected to a control system. The control system can control the alarm mechanism to sound an alarm after receiving an emergency signal.

3. The power plant ash hopper cleaning emergency safety device according to claim 1, characterized in that: The bracket includes a first support frame and a second support frame arranged in parallel, a crossbeam is arranged between the top ends of the first support frame and the second support frame, a lifting mechanism is installed on the crossbeam, and the bottom ends of the first support frame and the second support frame are used to be fixed on the maintenance platform.

4. A power plant ash hopper cleaning emergency safety device as claimed in claim 3, characterized in that: The first support frame and the second support frame both include a first support rod and a second support rod distributed in an inverted V shape, the top ends of the first support rod and the second support rod are fixed to the end of the crossbeam, and the bottom ends of the first support rod and the second support rod are provided with clamping parts, which are used to clamp and fix with the maintenance platform.

5. A power plant ash hopper cleaning emergency safety device as claimed in claim 4, characterized in that: The clamping piece adopts a U-shaped plate, including a vertical part and horizontal parts fixed at both ends of the vertical part. A space for the maintenance platform to extend into is provided between the two horizontal parts to realize the clamping of the clamping piece and the maintenance platform.

6. A power plant ash hopper cleaning emergency safety device as claimed in claim 4, characterized in that: The clamping parts at the bottom ends of the first support rod and the second support rod are fixed to the top end of the reinforcement rod. The bottom ends of the two reinforcement rods are cross-connected and rotatably connected to the hook part. The hook part is used to cooperate with the ladder. A locking part is provided between the hook part and the reinforcement rod.

7. A power plant ash hopper cleaning emergency safety device as claimed in claim 4, characterized in that: The first support frame and the second support frame are detachably connected to the end of the crossbeam, and the reinforcement rod is detachably connected to the clamping piece.

8. A power plant ash hopper system, characterized in that: It comprises an ash hopper and the power plant ash hopper cleaning emergency safety device as described in any one of claims 1-7, an inspection platform and a ladder in the ash hopper, the inspection platform is provided with a ladder entrance and exit corresponding to the top of the ladder, and the bracket is fixed at the ladder entrance and exit.

9. The power plant ash hopper system according to claim 8, characterized in that: The ash hopper is provided with a switch door for entering and exiting the maintenance platform.

10. A method for operating the ash hopper system of a power plant according to claim 8, characterized in that: The control system receives the vital signs detection element in real time to detect the vital characteristic parameters of the dust cleaning personnel in real time. When the vital sign parameters are abnormal, the vital sign parameter detection element sends an emergency signal to the control system, and the control system controls the lifting mechanism to work and lift the dust cleaning personnel to the maintenance platform.

Images