Boiler safety inspection control mechanism with protection effect

Abstract

The utility model discloses a boiler safety check control mechanism with a protection effect, which relates to the technical field of boilers and comprises a boiler body, a safety valve, a fixing block and a burner, the safety valve, the fixing block and the burner are arranged on the boiler body, a feed port is arranged at the bottom end of one side wall of the boiler body, and the burner is fixedly connected to the feed port. A plurality of safety valves are fixedly connected to the top of the boiler body, piston plates are slidably connected into the safety valves, and the tops of the piston plates are fixedly connected with the same fixing rod. According to the utility model, through the linkage of the safety valve and the sealing mechanism, when the safety valve is triggered, the sealing mechanism is synchronously triggered to reduce the caliber of the feeding hole, so that the feeding speed is reduced, the medium quantity in the boiler or the pressure container is reduced, the internal pressure of the boiler is reduced, and safety accidents caused by overlarge internal pressure of the boiler are avoided; therefore, automatic adjustment is achieved when the pressure intensity in the boiler is too large, and the burden of operators is relieved.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically to a boiler safety inspection and control mechanism with protective effects. Background Technology

[0002] A boiler is a device that uses various fuels, electricity or other energy sources to heat the liquid it contains to certain parameters and provides heat energy in the form of an output medium. Specifically, a boiler generates heat energy by burning fuel and transfers the heat energy to water or other working fluids, causing them to be heated, vaporized or generate steam, which can then be used for heating, power generation, industrial production and other fields.

[0003] As a high-temperature and high-pressure device, boilers pose various potential safety risks during operation. Therefore, boilers are equipped with many safety protection components to ensure normal operation or monitor the operating status of the boiler. However, most of these components require manual control by the operator, which places high demands on the operator's experience, reaction ability, and concentration. Long hours of work can lead to operator fatigue and pose safety hazards.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a boiler safety inspection and control mechanism with protective effect to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a boiler safety inspection and control mechanism with protective effect, including a boiler body and a safety valve, a fixing block and a burner installed on the boiler body. A feed inlet is provided at the bottom of one side wall of the boiler body, and the burner is fixedly connected to the feed inlet. Multiple safety valves are fixedly connected to the top of the boiler body. A piston plate is slidably connected inside the safety valve. The top of the multiple piston plates is fixedly connected to the same fixing rod. A sealing mechanism is fixedly connected to the opening of the feed inlet of the boiler body. The sealing mechanism is located between the boiler body and the burner. An external toothed ring is fixedly connected to the outer arc wall of the sealing mechanism. A vertical rack is meshed with one side of the external toothed ring. A rotating rod is rotatably connected to the end of the rack away from the external toothed ring. The end of the rotating rod away from the rack is rotatably connected to the bottom of the fixing rod.

[0007] Furthermore, the sealing mechanism at the feed inlet opening of the boiler body includes a baffle fixedly connected to the feed inlet opening of the boiler body. A channel 1 extending axially is provided at the center of the side wall of the baffle away from the feed inlet. A plurality of limiting plates 1 and 2 arranged in a ring array are rotatably connected to the side wall of the baffle away from the feed inlet outside the channel 1. An internal toothed ring is rotatably connected to the side wall of the baffle away from the feed inlet outside the limiting plate 1. The internal toothed ring is engaged with the limiting plate 1 and the limiting plate 2 respectively.

[0008] Furthermore, an outer toothed ring is fixedly connected to the outer arc wall of the inner toothed ring. The channel one on the baffle is adapted to the cross section of the feed inlet of the boiler body. The limiting plate one and the limiting plate two have the same structure. The end of the limiting plate one away from the channel one is rotatably connected to the baffle, and the length direction of the limiting plate one is axially set towards the channel one. The outer arc wall of the limiting plate one is provided with gear teeth on the side away from the channel one. The gear teeth on the limiting plate one mesh with the inner toothed ring.

[0009] Furthermore, the first limiting plate and the second limiting plate are arranged in a radially interlaced manner along the first channel, and adjacent first limiting plates and second limiting plates are arranged in a axially interlaced manner along the first channel. There is a gap between two adjacent first limiting plates. When the ends of several first limiting plates near the first channel abut against each other, the ends of several second limiting plates near the first channel abut against each other.

[0010] Furthermore, the safety valve includes a piston tube fixedly connected to the top of the boiler body, the piston tube communicating with the interior of the boiler body, a piston plate slidably connected to the inner arc wall of the piston tube, a spring telescopic rod fixedly connected to the center of the top of the piston plate, an exhaust pipe fixedly connected to one side of the outer arc wall of the piston tube, a fixing rod fixedly connected to the top of the piston plate, the fixing rod not contacting the spring telescopic rod and the side of the fixing rod away from the piston plate located outside the piston tube.

[0011] Furthermore, a groove is provided in the middle of the horizontal side wall of the rotating rod, extending through its width. A rotating shaft is provided in the groove, and vertical support rods are rotatably connected to both ends of the rotating shaft. The end of the support rod away from the rotating shaft is fixedly connected to the outer arc wall of the boiler body. The end of the rotating rod near the fixed rod is located above the fixed rod. A vertical through channel is provided at the top of the fixed block, and the rack is slidably connected in the channel.

[0012] Furthermore, a vertical groove 2 is provided on the inner arc wall of the channel 2 on the fixed block. A vertical return spring is fixedly connected in the groove 2. A slider is fixedly connected to the top of the return spring. The length direction of the slider is consistent with the width direction of the groove 2 and the slider is set away from the groove 2. One end of the slider away from the groove 2 is fixedly connected to the outer wall of the rack rod.

[0013] Furthermore, the multiple safety valves are distributed at equal intervals along the axial direction of the boiler body, with a gap between adjacent safety valves and the exhaust pipes being staggered in orientation.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By linking the safety valve with the closing mechanism, when the safety valve is triggered, the closing mechanism is simultaneously triggered to reduce the diameter of the feed inlet, thereby reducing the feed rate and the amount of medium in the boiler or pressure vessel, thus reducing the internal pressure of the boiler and avoiding safety accidents caused by excessive internal pressure. Therefore, automatic adjustment is achieved when the internal pressure of the boiler is too high, reducing the burden on operators.

[0016] 2. The sealing mechanism is controlled by a safety valve, so it can adaptively change the diameter of the feed inlet according to the pressure inside the boiler, that is, synchronously adapt and adjust, avoiding other problems caused by sudden changes in the pressure inside the boiler due to sudden closure of the feed inlet. Attached Figure Description

[0017] Figure 1 A schematic diagram of the internal structure of the enclosed mechanism in a boiler safety inspection and control system with protective capabilities. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of a boiler safety inspection and control mechanism with protective effects.

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 A schematic diagram of the internal structure of the enclosed mechanism in a boiler safety inspection and control system with protective capabilities. Figure 2 ;

[0021] Figure 5 This is a cross-sectional view of the internal structure of a safety valve in a boiler safety inspection and control mechanism that provides protection.

[0022] In the picture:

[0023] 10. Boiler body; 11. Safety valve; 12. Fixing rod; 13. Rotating rod; 14. Rack and pinion; 15. Fixing block; 16. Burner;

[0024] 20. External toothed ring; 21. Internal toothed ring; 22. Limiting plate one; 23. Limiting plate two; 24. Baffle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution: including a boiler body 10 and a safety valve 11, a fixing block 15, and a burner 16 disposed on the boiler body 10. A feed inlet is provided at the bottom of one side wall of the boiler body 10, and the burner 16 is fixedly connected to the feed inlet. Multiple safety valves 11 are fixedly connected to the top of the boiler body 10. A piston plate is slidably connected inside the safety valve 11. The top of the multiple piston plates is fixedly connected to the same fixing rod 12. A sealing mechanism is fixedly connected to the opening of the feed inlet of the boiler body 10. The sealing mechanism is located between the boiler body 10 and the burner 16. An external toothed ring 20 is fixedly connected to the outer arc wall of the sealing mechanism. A vertical rack rod 14 is meshed with one side of the external toothed ring 20. A rotating rod 13 is rotatably connected to the end of the rack rod 14 away from the external toothed ring 20. The end of the rotating rod 13 away from the rack rod 14 is rotatably connected to the bottom of the fixing rod 12.

[0027] It should be noted that the fixing rod 12 includes a vertically arranged fixing part, a horizontally arranged extension part, and a horizontally arranged connecting part. The fixing part is fixedly connected to one side of the top of the piston plate inside the safety valve 11. The extension part is fixedly connected to the top of the fixing part, and the end of the extension part away from the fixing part is located outside the safety valve 11. The ends of multiple extension parts away from their corresponding fixing parts are fixedly connected to the same connecting part. That is, the connecting part connects the fixing rods 12 on multiple safety valves 11 into one piece.

[0028] When the pressure inside the boiler body 10 increases, multiple safety valves 11 will be triggered, and the piston plates inside the multiple safety valves 11 will be lifted, which is enough to pull the rotating rod 13 and drive the rack rod 14 to move in the vertical direction to drive the closing mechanism.

[0029] Please see Figure 1-5 The present invention provides a technical solution: the sealing mechanism at the feed inlet opening of the boiler body 10 includes a baffle 24 fixedly connected to the feed inlet opening of the boiler body 10. A channel 1 is provided at the center of the side wall away from the feed inlet of the baffle 24, which runs through it along its axis. A plurality of limiting plates 1 22 and limiting plates 23 arranged in a ring array are rotatably connected to the side wall away from the feed inlet of the baffle 24 outside the channel 1. An internal toothed ring 21 is rotatably connected to the side wall away from the feed inlet of the baffle 24 outside the limiting plate 1 22. The internal toothed ring 21 is engaged with the limiting plate 1 22 and the limiting plate 23 respectively.

[0030] It should be noted that: the two baffles 24 protect the sealing mechanism inside, the channel one is adapted to the feed pipe for normal feeding, the channel one is unobstructed in the initial state, that is, there are no other parts in the axial direction of the channel one. Furthermore, the side wall of the sealing mechanism near the inside of the boiler body 10 is lined with fire-resistant and high-temperature resistant material, or a fire-resistant and high-temperature resistant material is used.

[0031] Please see Figure 1-5 This utility model provides a technical solution: an outer toothed ring 20 is fixedly connected to the outer arc wall of the inner toothed ring 21; the channel one on the baffle 24 is adapted to the cross section of the feed inlet of the boiler body 10; the limiting plate one 22 and the limiting plate two 23 have the same structure; the end of the limiting plate one 22 away from the channel one is rotatably connected to the baffle 24 and the length direction of the limiting plate one 22 is axially set towards the channel one; the outer arc wall of the limiting plate one 22 is provided with gear teeth on the side away from the channel one, and the gear teeth on the limiting plate one 22 mesh with the inner toothed ring 21.

[0032] It should be noted that in one possible embodiment, the end of the limiting plate 22 away from the channel 1 is semi-circular, and the end of the limiting plate 23 near the channel 1 is slender and conical. The end near the channel 1 is bent toward the side near the channel 1, so that when the limiting plate 22 rotates toward the side away from the channel 1, the bent parts can abut against each other and will not collide.

[0033] Please see Figure 1-5 The present invention provides a technical solution: the limiting plate 22 and the limiting plate 23 are arranged in a staggered manner along the radial direction of the channel, and adjacent limiting plates 22 and 23 are arranged in a staggered manner along the axial direction of the channel. There is a gap between two adjacent limiting plates 22. When the ends of several limiting plates 22 near the channel are abutted against each other, the ends of several limiting plates 23 near the channel are abutted against each other.

[0034] It should be noted that when multiple limit plates 22 approach one end of channel 1 and abut against each other, multiple limit plates 23 approach one end of channel 1 and abut against each other simultaneously. Thus, limit plates 22 and 23 can block most of channel 1, greatly reducing the feeding rate. This can also reduce the feeding rate when the pressure inside the boiler body 10 exceeds the standard, preventing the pressure drop rate from being too low and increasing the time other components bear the load.

[0035] Please see Figure 1-5The present invention provides a technical solution: the safety valve 11 includes a piston tube fixedly connected to the top of the boiler body 10, the piston tube and the interior of the boiler body 10 are interconnected, the piston plate is slidably connected to the inner arc wall of the piston tube, a spring telescopic rod is fixedly connected to the center of the top of the piston plate, an exhaust pipe is fixedly connected to one side of the outer arc wall of the piston tube, and a fixing rod 12 is fixedly connected to the top of the piston plate, the fixing rod 12 does not contact the spring telescopic rod and the side of the fixing rod 12 away from the piston plate is located outside the piston tube.

[0036] It should be noted that the piston tube is connected to the boiler body 10, and the piston plate is coaxially arranged with the piston tube. When the steam pressure inside the boiler body 10 exerts a thrust on the piston plate greater than the elastic force of the spring extension rod, the piston plate will be pushed. The pushing distance is also affected by the sliding friction between the piston plate and the piston tube.

[0037] In the initial state, the piston plate is located below the interface between the exhaust pipe and the piston tube. When the piston plate is lifted up to pass the interface between the exhaust pipe and the piston tube, the high-pressure steam will escape from the exhaust pipe. Similarly, if the gas pressure inside the boiler body 10 continues to increase, the thrust generated by the gas pressure on the piston plate in the piston tube will also increase, and its axial movement distance will also increase, thereby causing the fixed rod 12 to rise and pull the rotating rod 13 to swing.

[0038] Please see Figure 1-5 The present invention provides a technical solution: a sliding groove is provided in the middle of the horizontal side wall of the rotating rod 13, which runs through the width direction. A rotating shaft is provided in the sliding groove, and vertical support rods are rotatably connected to both ends of the rotating shaft. The end of the support rod away from the rotating shaft is fixedly connected to the outer arc wall of the boiler body 10. The end of the rotating rod 13 near the fixed rod 12 is located above the fixed rod 12. A vertical through channel is provided at the top of the fixed block 15, and the rack rod 14 is slidably connected in the channel.

[0039] It should be noted that: the length direction of the slide groove is consistent with the length direction of the rotating rod 13, so the rotating shaft can slide or rotate in the slide groove. The fixed rod 12 and the rotating rod 13 are rotatably connected to each other through the fixed lug, and the rotating rod 13 and the rack 14 are rotatably connected to each other through the fixed lug. When the rotating rod 13 rotates around the rotating shaft, the length of the projection of the rotating rod 13 on the water surface will be shortened, which will affect the meshing of the rack 14 and the external gear ring 20.

[0040] When the fixed rod 12 rises and pulls the rotating rod 13, the rotating rod 13 rotates around the axis. Since the rack rod 14 needs to remain vertical, it acts on the rotating rod 13 to force it to slide relative to the axis of rotation through the groove.

[0041] Please see Figure 1-5The present invention provides a technical solution: a vertical groove is provided on the inner arc wall of the channel 2 on the fixed block 15, a vertical return spring is fixedly connected in the groove 2, a slider is fixedly connected to the top of the return spring, the length direction of the slider is consistent with the width direction of the groove 2 and the slider is set away from the groove 2, and the end of the slider away from the groove 2 is fixedly connected to the outer wall of the rack 14.

[0042] It should be noted that the return spring is used to assist in the reset of the rack rod 14.

[0043] Please see Figure 1-5 The present invention provides a technical solution: a plurality of safety valves 11 are distributed at equal intervals along the axial direction of the boiler body 10, and there is a gap between adjacent safety valves 11 and the exhaust pipes are staggered.

[0044] It should be noted that the exhaust pipes are staggered, meaning they are not directed towards any other component, to prevent the high-temperature, high-pressure steam from affecting other components.

[0045] Working principle:

[0046] When the steam pressure inside the boiler body 10 is too high, the safety valve 11 is triggered, which in turn drives the fixed rod 12 to move. The fixed rod 12 drives the rack rod 14 to move vertically through the rotating rod 13 to engage the outer toothed ring 20, thereby driving the sealing mechanism to reduce the cross-sectional radius of the channel one, reducing the feed amount at the feed inlet, and controlling the steam pressure inside the boiler body 10.

Claims

1. A boiler safety inspection and control mechanism with protective effect, comprising a boiler body (10) and safety valves (11), fixing blocks (15), and burners (16) disposed on the boiler body (10), wherein a feed inlet is provided at the bottom end of one side wall of the boiler body (10), the burner (16) is fixedly connected to the feed inlet, and a plurality of safety valves (11) are fixedly connected to the top of the boiler body (10), characterized in that: A piston plate is slidably connected inside the safety valve (11), and the top of multiple piston plates is fixedly connected to the same fixed rod (12). A sealing mechanism is fixedly connected at the feed inlet opening of the boiler body (10). The sealing mechanism is located between the boiler body (10) and the burner (16). An external toothed ring (20) is fixedly connected to the outer arc wall of the sealing mechanism. A vertical rack rod (14) is meshed on one side of the external toothed ring (20). A rotating rod (13) is rotatably connected to the end of the rack rod (14) away from the external toothed ring (20). The end of the rotating rod (13) away from the rack rod (14) is rotatably connected to the bottom of the fixed rod (12).

2. The boiler safety inspection and control mechanism with protective effect as described in claim 1, characterized in that: The sealing mechanism at the feed inlet opening of the boiler body (10) includes a baffle (24) fixedly connected to the feed inlet opening of the boiler body (10). A channel 1 is provided at the center of the side wall away from the feed inlet of the baffle (24) and extends through it along its axis. A number of limiting plates 1 (22) and limiting plates 2 (23) arranged in a ring array are rotatably connected to the side wall away from the feed inlet of the baffle (24) outside the channel 1. An internal toothed ring (21) is rotatably connected to the side wall away from the feed inlet of the baffle (24) outside the limiting plate 1 (22). The internal toothed ring (21) is engaged with the limiting plate 1 (22) and the limiting plate 2 (23) respectively.

3. The boiler safety inspection and control mechanism with protective effect as described in claim 2, characterized in that: An external toothed ring (20) is fixedly connected to the outer arc wall of the internal toothed ring (21). The channel one on the baffle (24) is adapted to the cross section of the feed inlet of the boiler body (10). The limiting plate one (22) and the limiting plate two (23) have the same structure. The end of the limiting plate one (22) away from the channel one is rotatably connected to the baffle (24), and the length direction of the limiting plate one (22) is axially set towards the channel one. The outer arc wall of the limiting plate one (22) is provided with gear teeth on the side away from the channel one. The gear teeth on the limiting plate one (22) mesh with the internal toothed ring (21).

4. A boiler safety inspection and control mechanism with protective effect as described in claim 3, characterized in that: The first limiting plate (22) and the second limiting plate (23) are arranged in a staggered manner along the radial direction of the first channel, and adjacent first limiting plates (22) and second limiting plates (23) are arranged in a staggered manner along the axial direction of the first channel. There is a gap between two adjacent first limiting plates (22). When the ends of several first limiting plates (22) near the first channel abut each other, the ends of several second limiting plates (23) near the first channel abut each other.

5. A boiler safety inspection and control mechanism with protective effect as described in claim 1, characterized in that: The safety valve (11) includes a piston tube fixedly connected to the top of the boiler body (10). The piston tube is in communication with the interior of the boiler body (10). The piston plate is slidably connected to the inner arc wall of the piston tube. A spring telescopic rod is fixedly connected to the center of the top of the piston plate. An exhaust pipe is fixed to one side of the outer arc wall of the piston tube. A fixing rod (12) is fixedly connected to the top of the piston plate. The fixing rod (12) does not contact the spring telescopic rod and the side of the fixing rod (12) away from the piston plate is located outside the piston tube.

6. A boiler safety inspection and control mechanism with protective effect as described in claim 1, characterized in that: The rotating rod (13) has a groove in the middle of its horizontal side wall that runs through its width. A rotating shaft runs through the groove. Both ends of the rotating shaft are rotatably connected to vertical support rods. The end of the support rod away from the rotating shaft is fixedly connected to the outer arc wall of the boiler body (10). The end of the rotating rod (13) near the fixed rod (12) is located above the fixed rod (12). A vertical channel is opened at the top of the fixed block (15). The rack rod (14) is slidably connected in the channel.

7. A boiler safety inspection and control mechanism with protective effect as described in claim 6, characterized in that: A vertical groove is provided on the inner arc wall of the channel two on the fixed block (15). A vertical reset spring is fixedly connected in the groove two. A slider is fixedly connected to the top of the reset spring. The length direction of the slider is consistent with the width direction of the groove two and is set away from the groove two. One end of the slider away from the groove two is fixedly connected to the outer wall of the rack rod (14).

8. A boiler safety inspection and control mechanism with protective effect as described in claim 1, characterized in that: Multiple safety valves (11) are distributed at equal intervals along the axial direction of the boiler body (10), with a gap between adjacent safety valves (11) and the exhaust pipes are staggered.

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