Drain capacity expansion structure of boiler safety valve
By designing a boiler safety valve drainage expansion structure including flange body, exhaust pipe, exhaust component and other components, the problem of high-strength pressure caused by pressure and steam introduction into the cavity in the prior art is solved, and effective buffering and pressure relief of the internal pressure and steam of the boiler is achieved.
Patent Information
- Application Number
- CN202421918345.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The existing boiler safety valve drainage expansion structure During the pneumatic pressure relief process, pressure and steam are easily introduced into the cavity, resulting in high-strength pressure, making it difficult to easily relieve pressure and steam.
A boiler safety valve drainage expansion structure is designed, including flange body, exhaust pipe, exhaust assembly, circular pipe, hollow pipe, threaded rod and other components. Through the synergy of these components, buffering and pressure relief of the internal pressure and steam of the boiler is achieved.
It effectively buffers the pressure discharged by the boiler, reduces the high-strength pressure inside the cavity, achieves convenient pressure relief for pressure and steam, and improves the safety and operability of the boiler.
Smart Images
Figure CN222977886U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boiler safety valve drainage and expansion structures, and particularly relates to a boiler safety valve drainage and expansion structure. Background Art
[0002] A boiler safety valve refers to a valve provided at the end near the driver's cab at the top of the boiler to prevent the pressure inside the boiler from exceeding the specified pressure. When the pressure inside the boiler exceeds the specified value, the safety valve automatically opens to release the steam inside the boiler and reduce the pressure. When the pressure drops to the specified value, the safety valve automatically closes to stop discharging and reducing the pressure. At least two safety valves are installed on a new type of steam locomotive to ensure the safety of the boiler.
[0003] Currently, for the boiler safety valve drainage and expansion structures on the market, most of them will introduce pressure and steam into the inside of the cavity during the process of relieving the air pressure inside the boiler. During the process of introducing pressure and steam into the inside of the cavity, the instantaneous pressure and steam will generate a high-intensity pressure inside the cavity, which is not convenient for relieving the pressure of the pressure box and steam. Content of the Utility Model
[0004] The utility model provides a boiler safety valve drainage and expansion structure, aiming to solve the problem that most of the existing boiler safety valve drainage and expansion structures will introduce pressure and steam into the inside of the cavity during the process of relieving the air pressure inside the boiler. During the process of introducing pressure and steam into the inside of the cavity, the instantaneous pressure and steam will generate a high-intensity pressure inside the cavity, which is not convenient for relieving the pressure of the pressure box and steam.
[0005] The utility model is realized as follows. The boiler safety valve drainage and expansion structure includes a flange plate body. An exhaust pipe is connected to the top of the flange plate body. A pressure relief component is fixedly connected to the surface of the exhaust pipe. A circular pipe is connected to the top of the pressure relief component. A hollow pipe is fixedly connected to the top of the circular pipe. A circular block is fixedly connected to the inside of the hollow pipe. A threaded rod is threadedly connected to the inside of the circular block. An adjusting block is rotatably connected to the bottom of the threaded rod. A rotating block is rotatably connected to the surface of the threaded rod. A spring body is fixedly connected to the opposite sides of the adjusting block and the rotating block. A sealing disc is fixedly connected to the bottom of the adjusting block. A plug block is fixedly connected to the bottom of the sealing disc.
[0006] The pressure relief component includes an outer sleeve pipe. An inner sleeve pipe is connected to the top of the inner wall of the outer sleeve pipe at a certain height. A conical block is fixedly connected to the bottom of the outer sleeve pipe. An inner cavity pipe is fixedly connected to the top of the inner wall of the outer sleeve pipe. A plurality of sound-absorbing holes are formed on the surfaces of the inner cavity pipe and the inner sleeve pipe. A liquid outlet pipe is connected to the bottom of the conical block. A hole is formed in the outer sleeve pipe.
[0007] In order to achieve the effect of pressure relief for the auxiliary pair, as an optimization of the boiler safety valve hydrophobic expansion structure of the present utility model, a connecting pipe is fixedly connected inside the hole. A support rod is fixedly connected inside the connecting pipe. A spring rod is fixedly connected to the top of the support rod. A sealing block is fixedly connected to the top of the spring rod. A top cover is fixedly connected to the top of the sealing block.
[0008] In order to achieve the effect of sealing the plug and the air outlet pipe, as an optimization of the boiler safety valve hydrophobic expansion structure of the present utility model, a protective cover is sleeved on the surface of the plug. The exhaust pipe is arranged inside the protective cover. One side of the exhaust pipe away from the flange is in contact with the inner wall of the protective cover.
[0009] In order to achieve the effect of detecting the air pressure inside the outer sleeve, as an optimization of the boiler safety valve hydrophobic expansion structure of the present utility model, a gas pressure detector body is fixedly connected to the top of the outer sleeve.
[0010] In order to achieve the effect of reducing dust entering the inside of the circular pipe, as an optimization of the boiler safety valve hydrophobic expansion structure of the present utility model, an installation hole is opened on the front side of the circular pipe. A filter mesh frame is clamped inside the installation hole.
[0011] In order to achieve the effect of facilitating the user to seal the connection position between the top cover and the connecting pipe, as an optimization of the boiler safety valve hydrophobic expansion structure of the present utility model, a clamping groove is opened at the top of the connecting pipe. A clamping block is fixedly connected to the bottom of the top cover. The clamping block is arranged inside the clamping groove. One side of the clamping block away from the top cover is in contact with the inner wall of the clamping groove.
[0012] In order to achieve the effect of connecting the exhaust pipe and the inner cavity pipe, as an optimization of the boiler safety valve hydrophobic expansion structure of the present utility model, the top of the exhaust pipe penetrates through the bottom of the conical block and is communicated with the bottom of the inner cavity pipe.
[0013] In order to achieve the effect of facilitating the connection between the flange body and the boiler, as an optimization of the boiler safety valve hydrophobic expansion structure of the present utility model, a groove is opened at the bottom of the flange body. A sealing ring is clamped inside the groove.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] The boiler safety valve drain expansion structure can achieve the effect of splicing the structure with the boiler by setting the flange body. By setting the exhaust pipe, the pressure generated inside the boiler can be discharged from the boiler. By setting the air release component, the pressure discharged from the boiler can be buffered. By setting the circular pipe, hollow pipe, circular block, threaded rod, adjusting block, rotating block, spring body, sealing disc and plug, the user can, according to the pressure condition of the boiler, manipulate the threaded rod to make the threaded rod threadedly connected inside the hollow pipe, adjust the height of the threaded rod, then adjust the height of the adjusting block by the threaded rod. As the adjusting block is adjusted inside the hollow pipe, then the rotating block and the adjusting block adjust the height of the spring body, and due to the characteristics of the spring body itself, the sealing disc is adjusted inside the air release component. Then, the exhaust pipe is blocked by the plug. After the gas in the boiler is discharged to the inside of the air release component through the exhaust pipe, due to the characteristics of the spring body, the gas pressure flushes the plug out of the inside of the exhaust pipe, and then the gas and steam enter the inside of the air release component. By setting the outer sleeve pipe, inner sleeve pipe, tapered block, inner cavity pipe, several sound-absorbing holes, liquid outlet pipe and holes, first, the outer sleeve pipe ensures the connection between the exhaust pipe and the circular pipe. Then, the gas and steam are led into the inside of the inner cavity pipe through the exhaust pipe. Then, the impact force of the pressure is reduced through several sound-absorbing holes opened on the surfaces of the inner cavity pipe and the inner sleeve pipe. Then, the steam in the gas forms liquid after passing through several sound-absorbing holes, and then is led out of the inside of the outer sleeve pipe through the liquid outlet pipe. After reducing the impact force of the gas, the liquid in the gas is led out through the liquid outlet pipe. Through the holes, the effect of installing the connecting pipe can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the overall structure diagram of the boiler safety valve drain expansion structure of the present utility model;
[0017] Figure 2 is the structural schematic diagram of the air release component in the present utility model;
[0018] Figure 3 is the dissection schematic diagram of the connecting pipe in the present utility model;
[0019] Figure 4 is the structural schematic diagram of the local components in the present utility model;
[0020] Figure 5 is the structural schematic diagram of the flange body, exhaust pipe, groove and sealing ring in the present utility model.
[0021] In the figure, 1 is the flange body; 2 is the exhaust pipe; 3 is the air release component; 301 is the outer sleeve; 302 is the inner sleeve; 303 is the conical block; 304 is the inner cavity pipe; 305 is the sound absorption hole; 306 is the liquid outlet pipe; 307 is the hole; 4 is the circular pipe; 5 is the hollow pipe; 6 is the circular block; 7 is the threaded rod; 8 is the adjusting block; 9 is the rotating block; 10 is the spring body; 11 is the sealing disc; 12 is the plug block; 13 is the connecting pipe; 14 is the support rod; 15 is the spring rod; 16 is the sealing block; 17 is the top cover; 18 is the protective cover; 19 is the gas pressure detector body; 20 is the mounting hole; 21 is the filter mesh frame; 22 is the card slot; 23 is the card block; 24 is the groove; 25 is the sealing ring. Detailed implementation manners
[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying 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.
[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.
[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution: a boiler safety valve drain and expansion structure, including a flange body 1, the top of the flange body 1 is communicated with an exhaust pipe 2, the surface of the exhaust pipe 2 is fixedly connected with an air release component 3, the top of the air release component 3 is communicated with a circular pipe 4, the top of the circular pipe 4 is fixedly connected with a hollow pipe 5, a circular block 6 is fixedly connected inside the hollow pipe 5, a threaded rod 7 is threadedly connected inside the circular block 6, the bottom of the threaded rod 7 is rotatably connected with an adjusting block 8, the surface of the threaded rod 7 is rotatably connected with a rotating block 9, a spring body 10 is fixedly connected to the opposite sides of the adjusting block 8 and the rotating block 9, the bottom of the adjusting block 8 is fixedly connected with a sealing disc 11, and the bottom of the sealing disc 11 is fixedly connected with a plug block 12;
[0025] The deflation component 3 includes an outer sleeve 301, the top of the inner wall of the outer sleeve 301 is highly connected to the inner sleeve 302, the bottom of the outer sleeve 301 is fixedly connected to a conical block 303, the top of the inner wall of the outer sleeve 301 is fixedly connected to an inner cavity tube 304, the surfaces of the inner cavity tube 304 and the inner sleeve 302 are both provided with a plurality of silencer holes 305, the bottom of the conical block 303 is connected to a liquid outlet pipe 306, and the outer sleeve 301 is provided with a hole 307.
[0026] In this embodiment: by providing the flange body 1, the effect of splicing the structure with the boiler can be achieved; by providing the exhaust pipe 2, the effect of guiding the pressure generated inside the boiler out of the boiler can be achieved; by providing the air release component 3, the effect of buffering the pressure discharged from the boiler can be achieved; by providing the circular tube 4, the hollow tube 5, the circular block 6, the threaded rod 7, the adjusting block 8, the rotating block 9, the spring body 10, the sealing disk 11 and the plug 12, the user can achieve the following according to the pressure of the boiler: by manipulating the threaded rod 7, the threaded rod 7 is connected to the inside of the hollow tube 5 by threads, the height of the threaded rod 7 is adjusted, and then the threaded rod 7 adjusts the height of the adjusting block 8; as the adjusting block 8 is adjusted inside the hollow tube 5, the rotating block 9 and the adjusting block 8 adjust the height of the spring body 10, so that the characteristics of the spring body 10 itself adjust the sealing disk 11 inside the air release component 3, and then the exhaust pipe 2 is blocked by the plug 12, and then the exhaust is discharged. After the boiler gas is discharged to the inside of the gas discharge component 3 through the exhaust pipe 2, the gas pressure is used to rush out of the inside of the exhaust pipe 2 to the plug 12 through the characteristics of the spring body 10, and then the gas and steam are allowed to enter the gas discharge component 3. By setting the outer sleeve 301, the inner sleeve 302, the conical block 303, the inner cavity tube 304, the plurality of silencer holes 305, the liquid outlet pipe 306 and the hole 307, the outer sleeve 301 first ensures the connection between the exhaust pipe 2 and the circular tube 4, and then the gas and steam are allowed to enter the gas discharge component 3. The steam is introduced into the inner cavity tube 304 through the exhaust pipe 2, and then the impact force of the pressure is reduced through a plurality of silencer holes 305 opened on the surface of the inner cavity tube 304 and the inner sleeve 302. Then the steam in the gas passes through the plurality of silencer holes 305 to form liquid, and then is discharged out of the outer sleeve 301 through the liquid outlet pipe 306. After the impact force of the gas is reduced, the liquid in the gas is discharged through the liquid outlet pipe 306 and through the hole 307, so that the effect of installing the connecting pipe 13 can be achieved.
[0027] As a technical optimization solution of the utility model, the interior of the hole 307 is fixedly connected with a connecting tube 13, the interior of the connecting tube 13 is fixedly connected with a support rod 14, the top of the support rod 14 is fixedly connected with a spring rod 15, the top of the spring rod 15 is fixedly connected with a sealing block 16, and the top of the sealing block 16 is fixedly connected with a top cover 17.
[0028] In this embodiment: By providing the connecting pipe 13, the support rod 14, the spring rod 15, the sealing block 16 and the top cover 17, after the air pressure inside the outer sleeve 301 reaches a certain pressure, the top cover 17 and the sealing block 16 can be made to move away from the inside of the connecting pipe 13. Then, after the air pressure and temperature change, the support rod 14 and the spring rod 15 are used to reset the sealing block 16 and the top cover 17, thereby achieving the effect of assisting in pressure relief.
[0029] As a technical optimization solution of the present utility model, a protective cover 18 is sleeved on the surface of the plug 12, the exhaust pipe 2 is arranged inside the protective cover 18, and one side of the exhaust pipe 2 away from the flange body 1 contacts the inner wall of the protective cover 18.
[0030] In this embodiment: By providing the protective cover 18, the effect of sealing the plug 12 and the air outlet pipe can be achieved.
[0031] As a technical optimization solution of the present utility model, a gas pressure detector body 19 is fixedly connected to the top of the outer sleeve 301.
[0032] In this embodiment: By providing the gas pressure detector body 19, the effect of detecting the air pressure inside the outer sleeve 301 can be achieved.
[0033] As a technical optimization solution of the present utility model, an installation hole 20 is provided on the front side of the circular pipe 4, and a filter mesh frame 21 is clamped inside the installation hole 20.
[0034] In this embodiment: By providing the installation hole 20 and the filter mesh frame 21, the effect of reducing the entry of dust into the inside of the circular pipe 4 can be achieved.
[0035] As a technical optimization solution of the present utility model, a card slot 22 is provided at the top of the connecting pipe 13, a card block 23 is fixedly connected to the bottom of the top cover 17, the card block 23 is arranged inside the card slot 22, and one side of the card block 23 away from the top cover 17 contacts the inner wall of the card slot 22.
[0036] In this embodiment: By providing the card slot 22 and the card block 23, the effect of facilitating the user to seal the connection position between the top cover 17 and the connecting pipe 13 can be achieved.
[0037] As a technical optimization solution of the present utility model, the top of the exhaust pipe 2 penetrates through the bottom of the conical block 303 and is communicated with the bottom of the inner cavity pipe 304.
[0038] In this embodiment: By providing the exhaust pipe 2, the conical block 303 and the inner cavity pipe 304, the effect of communicating the exhaust pipe 2 and the inner cavity pipe 304 can be achieved.
[0039] As a technical optimization solution of the present utility model, a groove 24 is provided at the bottom of the flange body 1, and a sealing ring 25 is clamped inside the groove 24.
[0040] In this embodiment: By providing the groove 24 and the sealing ring 25, the effect of facilitating the connection between the flange body 1 and the boiler can be achieved.
[0041] Working principle: First, the user bolts the flange body 1 to the filter, and then manipulates the threaded rod 7 to make the threaded rod 7 threadedly connected inside the hollow tube 5, so as to adjust the height of the threaded rod 7. Then, the height of the adjusting block 8 is adjusted by the threaded rod 7. As the adjusting block 8 is adjusted inside the hollow tube 5, then the rotating block 9 and the adjusting block 8 adjust the height of the spring body 10. Due to the characteristics of the spring body 10 itself, the sealing disc 11 is adjusted inside the air release assembly 3. Then, the exhaust pipe 2 is blocked by the plug 12. After the boiler gas is discharged into the air release assembly 3 through the exhaust pipe 2, due to the characteristics of the spring body 10, the gas pressure flushes the plug 12 out of the inside of the exhaust pipe 2. Then, the gas and steam reach the inside of the inner cavity tube 304. Then, the gas and steam are introduced into the inner cavity tube 304 through the exhaust pipe 2. Then, the impact force is reduced by a number of sound absorption holes 305 provided on the surfaces of the inner cavity tube 304 and the inner sleeve 302. Then, the steam in the gas forms a liquid after passing through a number of sound absorption holes 305, and then is discharged out of the outer sleeve 301 through the liquid outlet pipe 306. After reducing the impact force of the gas, the liquid in the gas is discharged through the liquid outlet pipe 306.
[0042] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A boiler safety valve drain expansion structure, comprising a flange body (1), characterized in that: The top of the flange body (1) is connected to an exhaust pipe (2), the surface of the exhaust pipe (2) is fixedly connected to a gas relief component (3), the top of the gas relief component (3) is connected to a circular tube (4), the top of the circular tube (4) is fixedly connected to a hollow tube (5), the interior of the hollow tube (5) is fixedly connected to a circular block (6), the interior of the circular block (6) is threadedly connected to a threaded rod (7), the bottom of the threaded rod (7) is rotatably connected to an adjustment block (8), the surface of the threaded rod (7) is rotatably connected to a rotating block (9), the side of the adjustment block (8) opposite to the rotating block (9) is fixedly connected to a spring body (10), the bottom of the adjustment block (8) is fixedly connected to a sealing disk (11), and the bottom of the sealing disk (11) is fixedly connected to a plug block (12); The degassing component (3) comprises an outer sleeve (301), the inner sleeve (302) is connected to the top of the inner wall of the outer sleeve (301), a conical block (303) is fixedly connected to the bottom of the outer sleeve (301), an inner cavity tube (304) is fixedly connected to the top of the inner wall of the outer sleeve (301), a plurality of silencer holes (305) are provided on the surfaces of the inner cavity tube (304) and the inner sleeve (302), a liquid outlet pipe (306) is connected to the bottom of the conical block (303), and a hole (307) is provided on the outer sleeve (301).
2. The boiler safety valve drain expansion structure according to claim 1 is characterized in that: The hole (307) is fixedly connected to a connecting tube (13) inside, the connecting tube (13) is fixedly connected to a supporting rod (14) inside, the top of the supporting rod (14) is fixedly connected to a spring rod (15), the top of the spring rod (15) is fixedly connected to a sealing block (16), and the top of the sealing block (16) is fixedly connected to a top cover (17).
3. The boiler safety valve drain expansion structure according to claim 1 is characterized in that: A protective cover (18) is sleeved on the surface of the plug (12), the exhaust pipe (2) is arranged inside the protective cover (18), and the side of the exhaust pipe (2) away from the flange is in contact with the inner wall of the protective cover (18).
4. The boiler safety valve drain expansion structure according to claim 1 is characterized in that: The top of the outer sleeve (301) is fixedly connected to a gas pressure detector body (19).
5. The boiler safety valve drain expansion structure according to claim 1 is characterized by: A mounting hole (20) is provided on the front side of the circular tube (4), and a filter rack (21) is clamped inside the mounting hole (20).
6. The boiler safety valve drain expansion structure according to claim 2, characterized in that: The top of the connecting tube (13) is provided with a card slot (22), the bottom of the top cover (17) is fixedly connected with a card block (23), the card block (23) is arranged inside the card slot (22), and the side of the card block (23) away from the top cover (17) contacts the inner wall of the card slot (22).
7. The boiler safety valve drain expansion structure according to claim 1, characterized in that: The top of the exhaust pipe (2) passes through the bottom of the conical block (303) and is connected to the bottom of the inner cavity tube (304).
8. The boiler safety valve drain expansion structure according to claim 1, characterized in that: A groove (24) is provided at the bottom of the flange body (1), and a sealing ring (25) is clamped inside the groove (24).