Boiler bottom blowdown valve opener

Abstract

The utility model relates to boiler blowdown technical field discloses boiler bottom blowdown valve opening tool. Wherein boiler bottom blowdown valve opening tool includes long lever and abutment portion, long lever extends along left and right direction, and long lever can pass through connecting rod hole and abuts with opening tongue under the use state, and the abutment portion is formed by the one end of long lever and protrudes upward, and the abutment portion can abut with the flange on the top of blowdown valve after passing out connecting rod hole under the use state, when the opposite end of long lever is under the pressure, opening tongue drops under the pressure of long lever to realize blowdown valve opening, and the abutment portion provides support and pivot function for opening process through long lever extension operation distance, realizes long-distance safe opening, and reduces the operation difficulty with the help of lever principle, improves the convenience and security of operation.

Description

Technical Field

[0001] This utility model relates to the field of boiler blowdown technology, and in particular to a tool for opening the blowdown valve at the bottom of a boiler. Background Technology

[0002] During boiler operation, the feedwater, even after treatment, still contains a small amount of calcium and magnesium salts, suspended solids, and other impurities. When heated and evaporated, these impurities concentrate and precipitate, forming scale with poor thermal conductivity. This can lead to accidents such as bulging and tube rupture. Furthermore, dissolved oxygen and some salts in the boiler water can corrode the boiler metal and shorten its service life. Therefore, bottom blowdown is necessary through a bottom blowdown pneumatic solenoid valve to remove bottom sediment, reduce the concentration of dissolved solids and salts in the boiler water, adjust water quality, prevent steam-water bubbling, and ensure steam quality.

[0003] Currently, the drain valve is timed and controlled by the LBC controller, driven by compressed air to achieve automatic timed and quantitative draining. However, in actual operation and maintenance, it is not possible to wait for the automatic draining to be completed before starting maintenance. Therefore, the existing maintenance scenario requires manual operation. However, manually opening the drain valve has problems such as short operating distance, susceptibility to high-temperature steam, lack of support leading to laborious operation, and low safety.

[0004] Therefore, there is an urgent need for a tool to open the bottom drain valve of the boiler, which can solve the problems of low safety and laborious operation of manual operation. Utility Model Content

[0005] The purpose of this utility model is to provide a tool for opening the bottom drain valve of a boiler, which can solve the problems of low safety and laborious operation of manual operation.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] A tool for opening the bottom drain valve of a boiler, wherein a through connecting rod hole is provided on the outer wall of the drain valve housing, and an opening tongue is disposed inside the drain valve housing; the tool includes:

[0008] A long rod that extends in the left-right direction, and in use, the long rod can pass through the connecting rod hole and abut against the opening tongue;

[0009] The abutting part is formed by one end of the long rod protruding upward. In use, the abutting part passes through the connecting rod hole and abuts against the flange on the top of the drain valve. When the other end of the long rod is subjected to downward pressure, the opening tongue descends under the pressure of the long rod to open the drain valve.

[0010] As an optional solution for the boiler bottom drain valve opening tool, the length of the long rod that does not extend out of the connecting rod hole is greater than the length of the long rod that extends out of the connecting rod hole.

[0011] As an optional solution for the boiler bottom drain valve opening tool, the boiler bottom drain valve opening tool also includes a support, which is installed at the bottom of the long rod and abuts against the opening tongue.

[0012] As an optional tool for opening the bottom drain valve of the boiler, the support is made of high-strength alloy structural steel.

[0013] As an optional solution for the boiler bottom drain valve opening tool, the boiler bottom drain valve opening tool also includes a moving component, which includes:

[0014] A sliding rod, which is parallel and spaced apart at the bottom of the long rod;

[0015] The slider is fitted onto the slide rod and slidably connected to the slide rod, and the support is connected to the bottom of the slider.

[0016] As an optional solution for the boiler bottom drain valve opening tool, the boiler bottom drain valve opening tool also includes a driving component. The driving component is installed at the end of the slide rod that is relatively far away from the abutment part along the extension direction of the long rod. The output end of the driving component is connected to the slider. The driving component is used to drive the slider to slide along the slide rod, thereby driving the support to move.

[0017] As an optional solution for the boiler bottom drain valve opening tool, the boiler bottom drain valve opening tool also includes a locking element, which is installed on the slider and is used to lock the slider at a designated position on the slide rod.

[0018] As an optional solution for opening the bottom drain valve of the boiler, the contact part is also equipped with an anti-slip and anti-wear pad.

[0019] As an optional tool for opening the bottom drain valve of the boiler, the anti-slip and anti-wear pad is made of silicone material.

[0020] As an optional solution for opening the bottom drain valve of the boiler, the long rod includes:

[0021] Inner rod;

[0022] An outer rod, which is fitted over the inner rod;

[0023] The telescopic component has its fixed end installed at the left end of the inner rod and its output end installed at the right end of the outer rod. The telescopic component is used to drive the outer rod to extend or retract relative to the inner rod along the axial direction of the long rod to adjust the overall length of the long rod.

[0024] The beneficial effects of this utility model are as follows:

[0025] This utility model proposes a tool for opening a boiler bottom drain valve. A long rod extends in the left-right direction. In use, the long rod can pass through the connecting rod hole and abut against the opening tongue. The abutting part is formed by one end of the long rod protruding upward. After the abutting part passes through the connecting rod hole, it can abut against the flange on the top of the drain valve. When the other end of the long rod is subjected to downward pressure, the opening tongue descends under the pressure of the long rod to open the drain valve. The long rod extends the operating distance, and the abutting part provides support and a pivot function for the opening process, realizing safe opening from a distance. The lever principle is used to reduce the difficulty of operation and improve the convenience and safety of operation. Attached Figure Description

[0026] Figure 1 This is a first structural schematic diagram of the boiler bottom drain valve opening tool provided in this embodiment of the utility model;

[0027] Figure 2 This is a first structural schematic diagram of the boiler bottom drain valve opening tool and drain valve provided in this embodiment of the utility model.

[0028] In the picture:

[0029] 10. Boiler bottom drain valve opening tool; 20. Drain valve; 201. Connecting rod hole; 202. Opening tongue; 203. Flange;

[0030] 1. Long rod; 2. Abutment part. Detailed Implementation

[0031] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] This embodiment discloses a tool for opening the bottom drain valve of a boiler. A through connecting rod hole 201 is provided on the outer wall of the drain valve 20, and an opening tongue 202 is disposed inside the outer casing of the drain valve 20. Figures 1-2As shown, in this embodiment, the boiler bottom drain valve opening tool 10 includes a long rod 1 and an abutment part 2. The long rod 1 extends in the left-right direction. In use, the long rod 1 can smoothly pass through the connecting rod hole 201 and tightly abut against the opening tongue 202 inside the drain valve 20, ensuring that the force can be effectively transmitted. The abutment part 2 is integrally formed by one end of the long rod 1 protruding upwards. It has a stable structure and maintains a perpendicular angle with the long rod 1. In use, after the abutment part 2 passes through the connecting rod hole 201 with the long rod 1, it can accurately fit against the flange 203 end face at the top of the drain valve 20, forming a reliable support fulcrum. When the operator applies downward pressure to the opposite end of the long rod 1, with the help of the lever fulcrum constructed by the abutment part 2, the long rod 1 generates a downward torque with the abutment part 2 as the pivot. The opening tongue 202 descends steadily under the continuous pressure of the long rod 1, thereby realizing the smooth opening of the drain valve 20. The boiler bottom drain valve opening tool 10 significantly extends the operating distance through the long rod 1 structure, allowing operators to avoid approaching the high-temperature and high-pressure area at the bottom of the boiler, thus avoiding safety risks such as burns and splashes. At the same time, the abutment part 2 has the dual functions of support and positioning as a lever shaft. Combined with the lever arm design of the long rod 1, it significantly reduces the force required for opening based on the lever principle, effectively solving the problems of laborious and inefficient traditional manual operation. This improves the convenience, stability, and safety of opening the drain valve 20, making it suitable for daily maintenance operations of the bottom drain valve 20 in various industrial boilers.

[0037] Preferably, such as Figures 1-2 As shown, in this embodiment, the length of the rod 1 that does not extend through the connecting rod hole 201 is greater than the length of the rod 1 that extends through the connecting rod hole 201. This optimizes the lever arm ratio, allowing the lever arm at the operator's force application end to be longer. Based on the lever principle, this significantly reduces the force required to open the drain valve 20, thereby ensuring a more stable contact between the rod 1 and the opening tongue 202 inside the drain valve 20, and more precise force transmission. Combined with the support and positioning function of the contact part 2, this improves the stability of the drain valve 20 opening process.

[0038] Optionally, in this embodiment, the boiler bottom drain valve opening tool 10 is cut from a steel plate. The long rod 1 is 520 mm-580 mm long and 22 mm-28 mm high. The abutment part 2 is 25 mm-30 mm high and 15 mm-20 mm long. The boiler bottom drain valve opening tool 10 is 8.5 mm-10.5 mm thick, ensuring that the overall structure of the tool is sturdy and strong enough to withstand the force when opening the drain valve 20 without easily deforming or being damaged. At the same time, the length design of the long rod 1520 mm-580 mm not only meets the requirement of extending the operating distance, allowing operators to stay away from high temperature and high pressure areas to avoid safety risks, but also allows for... The lever principle optimizes the lever arm effect. The 22mm-28mm height of the long rod 1, the 25mm-30mm height of the abutment part 2, and the 15mm-20mm length of the abutment part 2 ensure precise contact between the abutment part 2 and the flange 203 end face, forming a reliable fulcrum. The long rod 1 and the opening tongue 202 tightly abut against each other to transmit force. The 8.5mm-10.5mm thickness enhances the tool's load-bearing capacity and service life. The overall size and material adaptation design gives the boiler bottom drain valve opening tool 10 the core advantages of convenient operation, labor-saving efficiency, and high efficiency, while also possessing the characteristics of a stable structure and durability. It is more suitable for the daily maintenance scenarios of various industrial boiler bottom drain valves 20. Specifically, in this embodiment, the long rod 1 is 550mm long and 25mm high, the abutment part 2 is 27mm high and 17mm long, and the boiler bottom drain valve opening tool 10 is 9.5mm thick. In other embodiments, the length of the long rod 1 can be 520 mm, 530 mm, 540 mm, 560 mm, 570 mm or 580 mm, etc., and the height of the long rod 1 can be 22 mm, 23 mm, 24 mm, 26 mm, 27 mm or 28 mm, etc., and the height of the abutment part 2 can be 25 mm, 26 mm, 28 mm, 29 mm or 30 mm, etc., and the length of the abutment part 2 can be 15 mm, 16 mm, 18 mm, 19 mm or 20 mm, etc., and the thickness of the boiler bottom drain valve opening tool 10 can be 8.5 mm, 9 mm, 10 mm or 10.5 mm, etc.

[0039] Preferably, in this embodiment, the boiler bottom drain valve opening tool 10 further includes a support. The support is installed at the bottom of the long rod 1 and abuts against the opening tongue 202. This can improve the contact stability between the long rod 1 and the opening tongue 202, making the force transmission more uniform and accurate. At the same time, in conjunction with the lever fulcrum of the abutment part 2, it can improve the reliability of torque transmission. By setting the support, the contact positioning effect is enhanced, reducing the problems of long rod 1 deviation and uneven force during the opening process. This makes the drain valve 20 open more smoothly and effortlessly, further improving the convenience and stability of operation, and better adapting to the daily maintenance scenarios of the bottom drain valve 20 of various industrial boilers.

[0040] Preferably, in this embodiment, the support is made of high-strength alloy structural steel. High-strength alloy structural steel has high mechanical strength and toughness, which can stably withstand the lever force and the reaction force of the opening tongue 202 when the drain valve 20 is opened, avoiding problems such as deformation and breakage. It ensures that the long rod 1 and the opening tongue 202 are accurately connected and the force is evenly transmitted. At the same time, this material has strong stability under the working conditions of medium and high temperature and slight corrosion at the bottom of the boiler, which can ensure the long-term reliable use of the support. It not only further improves the reliability of lever torque transmission in conjunction with the abutment part 2, making the drain valve 20 open more smoothly and effortlessly, but also continues the safety advantage of the tool being far away from high temperature and high pressure areas, enhancing the convenience, stability and durability of operation, and fully adapting to the daily maintenance scenarios of the drain valve 20 at the bottom of various industrial boilers.

[0041] Preferably, in this embodiment, the boiler bottom drain valve opening tool 10 further includes a moving component, which includes a slide rod and a slider. The slide rod is parallel and spaced apart at the bottom of the long rod 1, and the slider is sleeved on the slide rod and slidably connected to the slide rod. A support is connected to the bottom of the slider, so that the support can move flexibly along the slide rod to adjust its position, allowing the support to accurately adapt to the position of the opening tongue 202 of different specifications of drain valve 20 and maintain stable contact with the opening tongue 202. The lever fulcrum of the contact part 2 further optimizes the torque transmission. The moving component can improve the adaptability of the boiler bottom drain valve opening tool 10 to drain valves 20 of different specifications at the bottom of various industrial boilers, ensure more uniform and accurate force transmission, avoid deviation of the long rod 1 and uneven force, and make the drain valve 20 open more smoothly and effortlessly.

[0042] Preferably, in this embodiment, the boiler bottom drain valve opening tool 10 further includes a driving component. The driving component is installed at the end of the slide rod that is relatively far from the abutment part 2 along the extension direction of the long rod 1. The output end of the driving component is connected to the slider. The driving component is used to drive the slider to slide along the slide rod, thereby moving the support to the abutment position of the opening tongue 202. There is no need for manual adjustment of the support, which improves the accuracy and efficiency of the support positioning, reduces manual operation steps, and allows the operator to complete the adaptation adjustment without having to get close to the equipment. This avoids potential safety risks and, together with the lever structure, makes the drain valve 20 easier and smoother to open.

[0043] Optionally, in this embodiment, the driving component is a cylinder structure. In other embodiments, the driving component may also be a linear motor structure or a hydraulic cylinder structure, etc.

[0044] Preferably, in this embodiment, the boiler bottom drain valve opening tool 10 further includes a locking element, which is installed on the slider. The locking element is used to lock the slider in a designated position on the slide rod, which can accurately fix the relative positions of the long rod 1 and the opening tongue 202, and the abutment part 2 and the flange 203 end face, ensuring that the lever fulcrum is stable and the lever arm length is constant, making the force transmission more accurate and efficient, reducing the force required for opening, avoiding the problem of labor or poor opening caused by slider displacement during operation, and maintaining the stability of the operation process, preventing the long rod 1 from deviating and uneven force, and enhancing the contact positioning effect with the support, improving the convenience and safety of opening the drain valve 20, making the boiler bottom drain valve opening tool 10 adaptable to the maintenance scenarios of drain valves 20 of different specifications, and making the boiler bottom drain valve opening tool 10 more versatile and reliable in operation.

[0045] Preferably, in this embodiment, the abutment part 2 is also provided with an anti-slip and anti-wear pad, which can make the abutment part 2 fit more tightly and firmly against the end face of the top flange 203 of the drain valve 20, avoid sliding and displacement during the force process, ensure the stability and reliability of the lever fulcrum, ensure accurate and efficient torque transmission, and at the same time reduce the direct friction loss between the abutment part 2 and the end face of the flange 203, extend the service life of the tool and the drain valve 20 components, further improve the stability and safety of the drain valve 20 opening operation and the durability of the boiler bottom drain valve opening tool 10, and better adapt to the practical needs of daily maintenance of the industrial boiler bottom drain valve 20.

[0046] Optionally, in this embodiment, the anti-slip and anti-wear pad is made of silicone material. Silicone has good anti-slip properties and elasticity, allowing the contact part 2 to fit tightly against the end face of the top flange 203 of the drain valve 20, preventing slippage during operation, ensuring the stability of the lever fulcrum and accurate torque transmission, and guaranteeing the smooth and safe opening of the drain valve 20. Simultaneously, silicone has high wear resistance, high temperature resistance, and chemical stability, reducing direct friction wear between the contact part 2 and the end face of the flange 203, extending the service life of the tool and drain valve 20 components. It can also adapt to the medium-temperature environment at the bottom of the boiler, is not prone to aging and deterioration, and improves the adaptability, durability, and operational reliability of the boiler bottom drain valve opening tool 10 in the daily maintenance of the industrial boiler bottom drain valve 20. In other embodiments, the anti-slip and anti-wear pad can also be made of wear-resistant nylon or rubber materials.

[0047] Preferably, in this embodiment, the long rod 1 includes an inner rod, an outer rod, and a telescopic component. The outer rod is sleeved outside the inner rod. The fixed end of the telescopic component is installed on the left end of the inner rod, and the output end of the telescopic component is installed on the right end of the outer rod. The telescopic component is used to drive the outer rod to extend and retract relative to the inner rod along the axial direction of the long rod 1 to adjust the overall length of the long rod 1. This allows the boiler bottom drain valve opening tool 10 to be adapted to industrial boiler bottom drain valves 20 of different models and installation spacings. It ensures that the long rod 1 and the contact part 2 can always be accurately aligned with the opening tongue 202 and the flange 203 end face. It can also optimize the operating distance and lever arm length, ensuring the safety of the operator away from the high temperature and high pressure area. Furthermore, the adaptability adjustment allows the lever principle to play its full role, making the drain valve 20 opening operation more labor-saving and efficient.

[0048] Optionally, in this embodiment, the telescopic component is a hydraulic cylinder structure. In other embodiments, the telescopic component may be a servo motor gear rack combination structure or a linear motor structure, etc.

[0049] Preferably, in this embodiment, the long rod 1 and the abutment part 2 are integrally formed, which can ensure that the connection between the two is stable and always maintains a vertical angle, ensuring that the long rod 1 and the opening tongue 202 are tightly abutted and the abutment part 2 and the end face of the flange 203 are precisely fitted, so that the force transmission is efficient and the lever fulcrum is stable and reliable, providing structural support for the smooth opening of the drain valve 20.

[0050] Preferably, in this embodiment, the outer surface of the left end of the long rod 1 is provided with anti-slip serrations. This increases the friction between the operator's hand and the long rod 1 when the operator applies downward pressure to that end, preventing slippage during the application of force and ensuring that the force is stably and accurately transmitted to the long rod 1. This, in turn, ensures the effective generation and continuous action of the lever torque, allowing the opening tongue 202 to descend stably and smoothly open the drain valve 20. In other embodiments, the outer surface of the left end of the long rod 1 may also be fitted with an anti-slip sleeve, etc.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tool for opening a boiler bottom drain valve, wherein a through connecting rod hole (201) is provided on the outer wall of the drain valve (20) housing, and an opening tongue (202) is provided inside the drain valve housing, characterized in that, The boiler bottom drain valve opening tool (10) includes: Long rod (1), which extends in the left and right direction, and in use, the long rod (1) can pass through the connecting rod hole (201) and abut against the opening tongue (202); The abutting part (2) is formed by one end of the long rod (1) protruding upward. In the use state, the abutting part (2) can abut against the flange (203) at the top of the drain valve (20) after passing through the connecting rod hole (201). When the other end of the long rod (1) is subjected to downward pressure, the opening tongue (202) descends under the pressure of the long rod (1) to open the drain valve (20).

2. The boiler bottom drain valve opening tool according to claim 1, characterized in that, The length of the long rod (1) that does not extend out of the connecting rod hole (201) is greater than the length of the long rod (1) that extends out of the connecting rod hole (201).

3. The boiler bottom drain valve opening tool according to claim 1, characterized in that, The boiler bottom drain valve opening tool (10) also includes a support, which is installed at the bottom of the long rod (1) and abuts against the opening tongue (202).

4. The boiler bottom drain valve opening tool according to claim 3, characterized in that, The support is made of high-strength alloy structural steel.

5. The boiler bottom drain valve opening tool according to claim 3, characterized in that, The boiler bottom drain valve opening tool (10) also includes a moving component, which includes: Slide rods, which are arranged parallel to and spaced apart at the bottom of the long rod (1); A slider is sleeved on the slide rod and slidably connected to the slide rod, and the support is connected to the bottom of the slider.

6. The boiler bottom drain valve opening tool according to claim 5, characterized in that, The boiler bottom drain valve opening tool (10) also includes a driving component. The driving component is installed at one end of the slide rod that is relatively far away from the abutment part (2) along the extension direction of the long rod (1). The output end of the driving component is connected to the slider. The driving component is used to drive the slider to slide along the slide rod, thereby driving the support to move.

7. The boiler bottom drain valve opening tool according to claim 5, characterized in that, The boiler bottom drain valve opening tool (10) also includes a locking element, which is installed on the slider and is used to lock the slider at a designated position on the slide rod.

8. The boiler bottom drain valve opening tool according to any one of claims 1-7, characterized in that, The contact part (2) is also provided with an anti-slip and anti-wear pad.

9. The boiler bottom drain valve opening tool according to claim 8, characterized in that, The anti-slip and anti-wear pad is made of silicone material.

10. The boiler bottom drain valve opening tool according to any one of claims 1-7, characterized in that, The long rod (1) includes: Inner rod; An outer rod, which is fitted over the inner rod; The telescopic component has its fixed end installed at the left end of the inner rod and its output end installed at the right end of the outer rod. The telescopic component is used to drive the outer rod to extend and retract relative to the inner rod along the axial direction of the long rod (1) to adjust the overall length of the long rod (1).

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