Air pressure adjusting device for steam boiler

Abstract

The utility model relates to the field of industrial boilers, in particular to an air pressure adjusting device for a steam boiler. The air pressure adjusting device for the steam boiler comprises a boiler body, a conversion furnace, a preheating water inlet system and an air pressure adjusting mechanism, a combustion chamber and a steam chamber are arranged in the boiler body, a combustor is installed at one end of the combustion chamber, and the top end of the boiler body communicates with a tee joint; according to the device, high-temperature steam heat energy generated in the operation process of the boiler can be efficiently recycled, room-temperature water is preheated and then returns to a boiler body or serves as hot water, the energy utilization efficiency is remarkably improved, and energy consumption is reduced; the device can accurately adjust the air pressure in the boiler. By rotating the worm, the pressure between the plug and the air pressure nozzle can be conveniently adjusted, so that the circulation amount of steam is accurately controlled, the air pressure in the boiler is kept within a set range, and the stability and the reliability of a system are improved.

Description

Technical Field

[0001] The utility model relates to the field of industrial boilers, in particular to a pneumatic regulating device for a steam boiler. Background Art

[0002] During the operation of a steam boiler, maintaining the stability of the air pressure inside the boiler is one of the key factors to ensure the safe and efficient operation of the boiler; traditional steam boilers often rely on manual monitoring and adjustment for air pressure regulation, which is not only inefficient but also difficult to precisely control, and is prone to safety hazards or energy waste due to air pressure fluctuations; in addition, when the boiler generates steam, a large amount of high-temperature heat energy will be released, and if this heat energy cannot be effectively utilized, it will cause a large amount of energy waste;

[0003] Most of the existing steam boiler air pressure regulating devices adopt simple valve control or mechanical pressure regulating devices, and these devices have obvious deficiencies in terms of regulation accuracy, automation level, and heat energy recovery; for example, the traditional valve control method requires frequent manual adjustment, and the regulation accuracy is greatly affected by human factors; while the mechanical pressure regulating device can achieve a certain degree of automation, but it often has a complex structure, difficult maintenance, and poor heat energy recovery and utilization effect.

[0004] Therefore, it is necessary to provide a new pneumatic regulating device for a steam boiler to solve the above technical problems. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a pneumatic regulating device for a steam boiler.

[0006] The pneumatic regulating device for a steam boiler provided by the utility model includes: a boiler body, a conversion furnace, a preheating water inlet system, and a pneumatic regulating mechanism. The boiler body is internally provided with a combustion chamber and a steam chamber. A burner is installed at one end of the combustion chamber. A three-way joint is connected to the top of the boiler body. A conversion furnace is provided on one side of the boiler body, and the conversion furnace is cooperatively installed with one end of the three-way joint. A preheating water inlet system is installed between the boiler body and the conversion furnace, and a pneumatic regulating mechanism is installed inside the three-way joint.

[0007] Preferably, the preheating water inlet system includes: a connector, a conversion pipeline, a conduit, a water delivery pipe, and a water inlet pipe. Connectors are fixedly connected to both the top and bottom of the conversion furnace. A plurality of conversion pipelines are connected between the two connectors. The top of the connector located at the top of the conversion furnace is connected to a conduit, and the conduit is connected to the horizontal port of the three-way joint. The high-temperature steam released by the boiler body enters the conversion furnace through the three-way joint and the conduit. A water delivery pipe is connected to the top of the conversion furnace, and the water delivery pipe is connected to the boiler body. A water inlet pipe is connected to the bottom of the conversion furnace, and the water inlet pipe is used to convey room temperature water, and the room temperature water contacts a plurality of conversion pipelines for heating.

[0008] Preferably, the air pressure regulating mechanism includes: a threaded rod, a worm gear, a worm, a regulating plate, a threaded sleeve, a plug and a spring. There is an air pressure nozzle inside the tee. A threaded rod is rotatably connected inside the tee. The top end of the threaded rod is fixedly connected with a worm gear. A worm is rotatably connected to the top end of the tee. The worm is meshed with the worm gear. A regulating plate is slidably connected to the inner wall of the tee. The top end of the regulating plate is fixedly connected with a threaded sleeve. The threaded sleeve is threadedly connected with the threaded rod. A plug is slidably connected to the inner wall of the tee at the position of the air pressure nozzle. A spring is arranged between the plug and the regulating plate. By rotating the threaded rod, the threaded sleeve and the regulating plate are driven to move up and down, so that the regulating plate adjusts the compression stroke of the spring, thereby changing the air pressure inside the boiler body.

[0009] Preferably, the top end of the tee is engraved with an air pressure scale, and the pointer is fixedly connected to the center of the top end of the worm gear.

[0010] Preferably, one end of the worm extends out of the tee and is provided with an internal hexagonal groove.

[0011] Preferably, the connector at the bottom end of the conversion furnace is connected to an outlet pipe.

[0012] Preferably, the plug is provided with a rounded corner near the air pressure nozzle.

[0013] Compared with the related art, the air pressure regulating device for a steam boiler provided by the present utility model has the following beneficial effects:

[0014] Improve energy utilization efficiency: Through the preheating water inlet system, this device can efficiently recover the high-temperature steam heat energy generated during the operation of the boiler, preheat the room temperature water and then return it to the boiler body or use it as hot water, significantly improving the energy utilization efficiency and reducing energy consumption.

[0015] Realize precise air pressure regulation: By adopting a worm gear and worm drive mechanism and a threaded adjustment structure, this device can realize precise regulation of the air pressure inside the boiler. By rotating the worm, the pressure between the plug and the air pressure nozzle can be conveniently adjusted, thereby precisely controlling the steam flow rate and keeping the air pressure inside the boiler within the set range, improving the stability and reliability of the system.

[0016] Improve operation convenience: The design of the air pressure scale and the pointer enables the operator to directly read the current air pressure value and make adjustments as needed. This intuitive and convenient operation method greatly reduces the operation difficulty and complexity, and improves work efficiency.

[0017] Enhance system safety: The preheating water inlet system not only recovers heat energy, but also helps to stabilize the air pressure fluctuation inside the boiler through the cooling effect of room temperature water on high-temperature steam, reducing potential safety hazards caused by too high or too low air pressure. At the same time, the rounded corner design of the plug reduces the impact and noise generated by sudden air flow changes, further improving the system safety. Description of the Drawings

[0018] Figure 1 This is a schematic structural diagram of the air pressure regulating device for a steam boiler provided by the present utility model;

[0019] Figure 2 For Figure 1 This is a schematic structural diagram of the side view cross-section of the conversion path shown;

[0020] Figure 3 For Figure 1 This is a schematic structural diagram of the side view cross-section of the three-way shown;

[0021] Figure 4 For Figure 3 The enlarged view at position A in

[0022] Reference numerals in the figure: 1, boiler body; 2, burner; 3, conversion furnace; 4, three-way; 5, air pressure scale; 6, pointer; 7, internal hexagonal groove; 8, air outlet pipe; 21, connector; 22, conversion pipe; 23, conduit; 24, water supply pipe; 25, water inlet pipe; 31, threaded rod; 32, worm gear; 33, worm; 34, adjusting plate; 35, threaded sleeve; 36, plug; 37, spring. Detailed Embodiment

[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] The following details the specific implementation of the present utility model in conjunction with specific embodiments.

[0025] Please refer to Figures 1 to 4 , an air pressure regulating device for a steam boiler, the air pressure regulating device for the steam boiler includes: a boiler body 1, a conversion furnace 3, a preheating water inlet system and an air pressure regulating mechanism. A combustion chamber and a steam chamber are provided inside the boiler body 1. A burner 2 is installed at one end of the combustion chamber. A three-way 4 is connected to the top end of the boiler body 1. A conversion furnace 3 is provided on one side of the boiler body 1. The conversion furnace 3 is cooperatively installed with one end of the three-way 4. A preheating water inlet system is installed between the boiler body 1 and the conversion furnace 3. An air pressure regulating mechanism is installed inside the three-way 4. The connector 21 located at the bottom end of the conversion furnace 3 is connected to an air outlet pipe 8.

[0026] Please refer to Figures 2 - 3, the preheating water inlet system includes: a connector 21, a conversion pipe 22, a conduit 23, a water delivery pipe 24, and a water inlet pipe 25. Connectors 21 are fixedly connected to both the top and bottom of the conversion furnace 3. A number of conversion pipes 22 are connected between the two connectors 21. The top of the connector 21 located at the top of the conversion furnace 3 is connected to a conduit 23. The conduit 23 is connected to the horizontal port of the three-way joint 4. The high-temperature steam released by the boiler body 1 enters the conversion furnace 3 through the three-way joint 4 and the conduit 23. The top of the conversion furnace 3 is connected to a water delivery pipe 24. The water delivery pipe 24 is connected to the boiler body 1. The bottom of the conversion furnace 3 is connected to a water inlet pipe 25. The water inlet pipe 25 is used to transport room temperature water. The room temperature water contacts a number of conversion pipes 22 for heating.

[0027] Please refer to Figures 3 - 4 , the air pressure regulating mechanism includes: a threaded rod 31, a worm gear 32, a worm 33, a regulating plate 34, a threaded sleeve 35, a plug 36, and a spring 37. An air pressure nozzle is provided inside the three-way joint 4. A threaded rod 31 is rotatably connected inside the three-way joint 4. The top of the threaded rod 31 is fixedly connected to a worm gear 32. A worm 33 is rotatably connected to the top of the three-way joint 4. The worm 33 is meshed with the worm gear 32. A regulating plate 34 is slidably connected to the inner wall of the three-way joint 4. The top of the regulating plate 34 is fixedly connected to a threaded sleeve 35. The threaded sleeve 35 is threadedly connected to the threaded rod 31. A plug 36 is slidably connected to the inner wall of the three-way joint 4 at the position of the air pressure nozzle. A spring 37 is provided between the plug 36 and the regulating plate 34. By rotating the threaded rod 31, the threaded sleeve 35 and the regulating plate 34 are lifted and lowered, causing the regulating plate 34 to adjust the compression stroke of the spring 37, thereby changing the air pressure inside the boiler body 1. An air pressure scale 5 is engraved on the top of the three-way joint 4. The pointer 6 is fixedly connected to the center of the top of the worm gear 32. One end of the worm 33 extends out of the three-way joint 4 and is provided with an internal hexagonal groove 7. The plug 36 is provided with a rounded corner near the air pressure nozzle.

[0028] The working principle of the air pressure regulating device for the steam boiler provided by the present utility model is as follows:

[0029] 1. Steam circulation and heat energy recovery

[0030] Steam generation and delivery: The combustion chamber in the boiler body 1 continuously burns through the burner 2 to generate high-temperature and high-pressure steam; these steams first gather in the steam chamber and then are split through the three-way joint 4 at the top of the boiler body 1;

[0031] Steam preheating water inlet system: When the air pressure inside the boiler is greater than the set value, the excess high-temperature steam enters the conduit 23 through the horizontal port of the three-way joint 4; the steam flows in the conduit 23 and finally enters the conversion furnace 3;

[0032] Heat energy recovery: In the conversion furnace 3, high-temperature steam releases a large amount of heat energy through a number of conversion pipes 22; at the same time, the water inlet pipe 25 connected by the connector 21 continuously transports room temperature water into the conversion furnace 3; this room temperature water is heated around the conversion pipes 22 to achieve the recovery and utilization of heat energy;

[0033] Hot water reflux: The preheated water returns to the boiler body 1 through the water delivery pipe 24 for further heating, or is directly supplied as hot water to other systems for use, thereby improving the energy utilization efficiency;

[0034] 2. Air pressure regulation mechanism

[0035] Initial state: In the initial state, the plug 36 maintains a certain position under the action of the spring 37, allowing an appropriate amount of steam to pass through to maintain the air pressure inside the boiler body 1 within the set range;

[0036] Air pressure regulation: When it is necessary to adjust the air pressure inside the boiler body 1, the operator rotates the worm 33 to drive the worm wheel 32 to rotate; since the worm wheel 32 is fixedly connected to the threaded rod 31, the threaded rod 31 will rotate accordingly;

[0037] Thread transmission: The rotation of the threaded rod 31 causes the threaded sleeve 35 threadedly connected to it to move in the vertical direction; the movement of the threaded sleeve 35 further drives the adjustment plate 34 to rise and fall, thereby changing the compression degree of the spring 37;

[0038] Position adjustment of the plug 36: As the adjustment plate 34 rises and falls, the pressure between the plug 36 and the air pressure nozzle changes; when the adjustment plate 34 approaches the air pressure nozzle, the pressure increases and the air pressure inside the boiler rises; conversely, the pressure decreases and the air pressure drops;

[0039] Air pressure display and monitoring: The pointer 6 at the top of the worm wheel 32 rotates together with the worm wheel 32 and points to the air pressure scale 5 at the top of the tee 4; in this way, the operator can directly read the current air pressure value and make adjustments as needed;

[0040] 3. System safety and efficiency

[0041] Heat energy recovery and cooling effect: The preheating water inlet system not only realizes the recovery and utilization of heat energy, but also helps to stabilize the air pressure fluctuation inside the boiler body 1 through the cooling effect of room temperature water on high-temperature steam, improving the safety of the system;

[0042] Smooth air flow transition: The plug 36 is designed with a rounded corner near the air pressure nozzle, reducing the impact and noise generated by sudden air flow changes during the adjustment process, and also helping to extend the service life of the equipment;

[0043] Precise adjustment and automation: The device achieves precise adjustment of air pressure through the transmission of the worm wheel 32 and the worm 33, avoiding the cumbersome process and errors of traditional manual adjustment; the design of the air pressure scale 5 and the pointer 6 improves the accuracy and efficiency of adjustment, realizing the automatic monitoring and adjustment of air pressure.

[0044] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A pressure regulating device for a steam boiler, characterized in that, Including: The boiler body (1) has a combustion chamber and a steam chamber inside. A burner (2) is installed at one end of the combustion chamber. A tee (4) is connected to the top of the boiler body (1). The conversion furnace (3) is provided on one side of the boiler body (1). The conversion furnace (3) is installed in cooperation with one end of the tee (4). The preheating water inlet system is installed between the boiler body (1) and the conversion furnace (3). The air pressure regulating mechanism is installed inside the tee (4).

2. The air pressure regulating device for a steam boiler according to claim 1, characterized in that, The preheating water inlet system includes: a connector (21), a conversion pipe (22), a conduit (23), a water delivery pipe (24), and a water inlet pipe (25). Connectors (21) are fixedly connected to the top and bottom of the conversion furnace (3). A number of conversion pipes (22) are connected between the two connectors (21). The top of the connector (21) located at the top of the conversion furnace (3) is connected to a conduit (23). The conduit (23) is connected to the horizontal port of the tee (4). The high-temperature steam released by the boiler body (1) enters the conversion furnace (3) through the tee (4) and the conduit (23). A water delivery pipe (24) is connected to the top of the conversion furnace (3). The water delivery pipe (24) is connected to the boiler body (1). The bottom of the conversion furnace (3) is connected to a water inlet pipe (25). The water inlet pipe (25) is used to convey room temperature water. The room temperature water contacts a number of conversion pipes (22) for heating.

3. The air pressure regulating device for a steam boiler according to claim 1, characterized in that, The air pressure regulating mechanism includes: a threaded rod (31), a worm gear (32), a worm (33), an adjusting plate (34), a threaded sleeve (35), a plug (36), and a spring (37). An air pressure nozzle is provided inside the tee (4). A threaded rod (31) is rotatably connected inside the tee (4). The top of the threaded rod (31) is fixedly connected to a worm gear (32). A worm (33) is rotatably connected to the top of the tee (4). The worm (33) is meshed with the worm gear (32). An adjusting plate (34) is slidably connected to the inner wall of the tee (4). The top of the adjusting plate (34) is fixedly connected to a threaded sleeve (35). The threaded sleeve (35) is threadedly connected to the threaded rod (31). A plug (36) is slidably connected to the inner wall of the tee (4) at the position of the air pressure nozzle. A spring (37) is provided between the plug (36) and the adjusting plate (34). By rotating the threaded rod (31), the threaded sleeve (35) and the adjusting plate (34) are lifted and lowered, causing the adjusting plate (34) to adjust the compression stroke of the spring (37), thereby changing the air pressure inside the boiler body (1).

4. The air pressure regulating device for a steam boiler according to claim 3, characterized in that, An air pressure scale (5) is engraved on the top of the tee (4). A pointer (6) is fixedly connected to the top center of the worm gear (32).

5. The air pressure regulating device for a steam boiler according to claim 3, characterized in that, One end of the worm (33) extends out of the tee (4) and is provided with an internal hexagonal groove (7).

6. The air pressure regulating device for a steam boiler according to claim 2, characterized in that, An air outlet pipe (8) is connected to the connector (21) located at the bottom of the conversion furnace (3).

7. The air pressure regulating device for a steam boiler according to claim 3, characterized in that, The plug (36) is provided with a rounded corner near the air pressure nozzle.

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