Boiler pressure detection and relief device

Abstract

The utility model discloses a boiler pressure detection pressure relief device, which relates to the technical field of boiler devices, and comprises a boiler, a sealing cover is clamped at the top of the boiler, a pressure relief device box is fixed and communicated with the side surface of the boiler, support legs are fixedly mounted at the bottom of the boiler, a pressure relief assembly is arranged in the pressure relief device box, and the pressure relief assembly is connected with the sealing cover. The pressure relief assembly comprises a limiting cylinder, and the limiting cylinder is fixedly installed in the pressure relief device box. According to the device, a rotating rod is rotated to be matched with a rotating shaft to rotate, so that a rotating core rotates in a limiting barrel, the position of the rotating core is limited, a good testing environment is provided for pressure testing in a boiler, when a round hole opening and a gas discharging opening are gradually overlapped, the gas discharging efficiency is highest, and pressure discharging can be rapidly completed; and for the boiler sensitive to pressure, the pressure relief efficiency can be adjusted by rotating the rotating rod, and the situation that the pressure of the boiler changes violently is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler devices, in particular to a boiler pressure detection and pressure relief device. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. It is widely used in industry and metallurgy. There are many ways to classify boilers. They can be classified according to their purpose, structure, fuel type, water circulation form, and pressure.

[0003] The utility model patent disclosed as CN215372415U discloses a pressure relief device for boiler pressure detection, including a boiler outer wall, a pressure relief hole is opened on the inner side of the boiler outer wall, a pressure relief cylinder located outside the pressure relief hole is fixedly installed on the outer wall of the boiler outer wall, a pressure relief plate is arranged on the outer side of the pressure relief cylinder, a buckle ring is arranged between the pressure relief cylinder and the pressure relief plate, a threaded rod is arranged on the inner side of the pressure relief cylinder, a baffle is fixedly mounted on the outer end of the threaded rod, and four clamping blocks are fixedly installed on the outer wall of the baffle. The pressure relief device for boiler pressure detection in the above application document, through the setting of the baffle plate inside the pressure relief cylinder, can be separated from the pressure relief plate by turning the fastening nut, and then the block on the outer wall of the baffle plate is engaged in the through groove on the outside of the first buckle plate by turning the threaded rod, so that the pressure on the inner side of the outer wall of the boiler can be released through the sealing groove and the pressure relief groove on the inner side of the pressure relief plate. However, the pressure relief process is relatively simple and there are some shortcomings in adjusting the pressure relief efficiency. If the inside of the boiler is more sensitive to pressure, it may cause drastic changes in internal and external pressures, affecting the boiler body. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a boiler pressure detection and pressure relief device, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a boiler pressure detection and pressure relief device, including a boiler, a sealing cover is clamped on the top of the boiler, a pressure relief device box is fixed and connected to the side of the boiler, a supporting foot is fixedly installed on the bottom of the boiler, and a pressure relief assembly is arranged inside the pressure relief device box;

[0005] The pressure relief assembly includes a limit cylinder, which is fixedly installed inside the pressure relief device box, and the side of the limit cylinder is fixed and connected with an air release port, which passes through the side of the pressure relief device box and is fixedly connected to the pressure relief device box; a rotating core is rotatably connected inside the limit cylinder, a round hole opening is provided on the side of the rotating core, a sliding column is slidably connected to the bottom of the rotating core, a spring is wound around the outside of the sliding column, a pressing groove is provided inside the rotating core, one end of the limiting rod is slidably connected to the pressing groove, and the other end of the limiting rod is rotatably connected to a mounting rotating seat, the mounting rotating seat is rotatably connected to the bottom side of the pressure relief device box, the bottom side of the sliding column is fixedly connected to the mounting rotating seat, a rotating shaft is fixedly installed on the top of the rotating core, and a rotating rod is fixedly installed on the top side of the rotating shaft.

[0006] Preferably, a sealing ring is fixedly installed at the connection between the rotating core and the top side of the limiting cylinder, the top of the spring is located on the bottom side of the rotating core, the outer wall of the rotating core is in close contact with the inner wall of the limiting cylinder, and the air vent and the circular hole opening are of the same size and specifications, thereby preventing the gas inside the boiler from leaking to the outside, thereby ensuring that the air pressure inside the boiler is sealed and stable.

[0007] Preferably, an airbag is fixedly installed on the top of the mounting rotating seat, and the airbag is fixed and connected to the air cylinder through a connecting tube, and the air cylinder is fixedly connected to the side of the limit cylinder, and a push rod is slidably connected inside the airbag, and a fixing plate is fixedly installed on the top of the push rod, and the fixing plate is slidably connected to the inner wall of the pressure relief device box, and a sliding cylinder is embedded in the fixing plate, and a rubber bag is fixed and connected to the bottom of the sliding cylinder, and a slide plate is slidably connected inside the sliding cylinder, and a pressure sensor is fixedly installed on the side of the slide plate, and the pressure sensor is slidably connected to the support rod, and an air pressure measuring gauge is fixedly installed on the side of the support rod away from the pressure sensor, and the air pressure measuring gauge is electrically connected to the pressure sensor, and the pressure sensor is correspondingly induced and transmits the measurement result of the air pressure to the air pressure measuring gauge through a digital signal, so that the operator can observe the specific value of the air pressure through the air pressure measuring gauge.

[0008] Preferably, the rubber bag is filled with nitrogen gas, and the bag is sleeved on the outside of the sliding column without contacting the sliding column. Nitrogen is a stable inert gas that can avoid explosions when the air pressure changes, thereby ensuring the safety inside the boiler.

[0009] Preferably, a pointer is fixedly mounted on the top side of the rotating core, and a digital scale is fixedly mounted on the top of the limiting cylinder. The direction of the pointer is consistent with the center direction of the circular hole opening. The operator can observe the pointer and the digital scale externally to obtain the precise angle, thereby understanding the efficiency of the boiler pressure release at this time.

[0010] Preferably, a rectangular opening consistent with the size of the fixing plate is provided on the upper side of the pressure relief device box, the airbag is made of rubber material, the pressing groove is clamped with one end of the limiting rod, and the air pressure measuring gauge will retract into the rectangular opening when not in use daily, thereby ensuring the safety of the air pressure measuring gauge and enabling the air pressure measuring gauge to be used for a long time.

[0011] The utility model provides a boiler pressure detection and pressure relief device, which has the following beneficial effects:

[0012] (1) The device rotates the rotating rod so that the rotating rod rotates with the rotating shaft, thereby causing the rotating core to rotate inside the limiting cylinder and limiting the position of the rotating core, providing a better test environment for the pressure test in the boiler. When the circular hole opening and the air release port gradually overlap, the gas release efficiency is the fastest and the pressure release can be completed quickly. For pressure-sensitive boilers, the pressure release efficiency can be adjusted by rotating the rotating rod to avoid drastic pressure changes in the boiler.

[0013] (2) The device drives the sliding cylinder to move upward as a whole through the pressure change of the airbag and the cooperation between the fixed plate, so that the user can see the air pressure gauge. The pressure sensor is induced accordingly and transmits the measurement results of the air pressure to the air pressure gauge through a digital signal, so that the operator can observe the specific value of the air pressure through the air pressure gauge.

[0014] (3) Through the coordination between the pointer and the digital scale, the device can clearly observe the rotation angle of the rotating core at this time, so as to accurately grasp the internal pressure of the boiler. At the same time, it can also keep the pointer at a certain angle to achieve stable pressure relief, which is beneficial for the operator to observe the internal pressure of the boiler and make timely adjustments, and has more fault tolerance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the entire utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the pressure relief device box of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of the cross section of the pressure relief device box of the utility model;

[0018] Figure 4 This is a schematic diagram of the air pressure measurement of the utility model;

[0019] Figure 5 This is a cross-sectional schematic diagram of the air pressure measuring table of the utility model;

[0020] Figure 6 It is a schematic diagram of the pointer and digital scale of the utility model.

[0021] In the figure: 1. boiler; 2. sealing cover; 3. supporting foot; 4. air vent; 5. pressure relief device box; 6. limiting cylinder; 7. rotating core; 8. round hole opening; 9. sealing ring; 10. rotating shaft; 11. rotating rod; 12. pressing groove; 13. limiting rod; 14. installing rotating seat; 15. spring; 16. air bag; 17. sliding column; 18. air cylinder; 19. push rod; 20. fixing plate; 21. sliding cylinder; 22. air pressure gauge; 23. rubber bag; 24. pressure sensor; 25. sliding plate; 26. supporting rod; 27. pointer; 28. digital ruler. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Embodiment 1

[0024] See also Figure 1-3 A boiler pressure detection and pressure relief device comprises a boiler 1, a sealing cover 2 is clamped on the top of the boiler 1, a pressure relief device box 5 is fixed and connected to the side of the boiler 1, a supporting foot 3 is fixedly installed on the bottom of the boiler 1, and a pressure relief component is arranged inside the pressure relief device box 5;

[0025] The pressure relief assembly includes a limit cylinder 6, which is fixedly installed inside the pressure relief device box 5. The side of the limit cylinder 6 is fixed and connected with a venting port 4. The venting port 4 runs through the side of the pressure relief device box 5 and is fixedly connected to the pressure relief device box 5. The limit cylinder 6 is rotatably connected with a rotating core 7. A round hole opening 8 is provided on the side of the rotating core 7. A sliding column 17 is slidably connected to the bottom of the rotating core 7. A spring 15 is wound around the outside of the sliding column 17. A pressing groove 12 is provided inside the rotating core 7. The pressing groove 12 is slidably connected to one end of a limiting rod 13. The other end of the limiting rod 13 is rotatably connected to the installation rotating shaft. The movable seat 14 is rotatably connected to the bottom side of the pressure relief device box 5, the bottom side of the sliding column 17 is fixedly connected to the mounting rotating seat 14, the top of the rotating core 7 is fixedly installed with a rotating shaft 10, the top side of the rotating shaft 10 is fixedly installed with a rotating rod 11, and the connection between the rotating core 7 and the top side of the limiting cylinder 6 is fixedly installed with a sealing ring 9. The top end of the spring 15 is located at the bottom side of the rotating core 7, the outer wall of the rotating core 7 is tightly attached to the inner wall of the limiting cylinder 6, and the air release port 4 and the circular hole opening 8 are of the same size and specifications, which prevents the gas inside the boiler 1 from leaking to the outside, and ensures that the air pressure inside the boiler 1 is sealed and stable.

[0026] During use, when it is necessary to test the internal pressure of the boiler 1, the rotating rod 11 is rotated so that the rotating rod 11 cooperates with the rotating shaft 10 to rotate, thereby causing the rotating core 7 to rotate inside the limiting cylinder 6. During the rotation process, the rotating core 7 drives the installed rotating seat 14 to rotate in the same direction through the sliding column 17. During the rotation process of the rotating core 7, the circular hole opening 8 and the air release port 4 are gradually staggered, so that the air release port 4 is blocked by the side wall of the rotating core 7. At this time, the gas inside the pressure relief device box 5 cannot leak out. The rotating rod 11 is pressed downward again, so that the rotating rod 11 drives the rotating core 7 to move downward. The rotating core 7 moves vertically downward under the limit of the sliding column 17. In this process, one end of the limiting rod 13 slides in the pressing groove 12, and one end of the limiting rod 13 slides to the middle depression of the pressing groove 12 and is stuck, thereby limiting the rotating core 7. At the same time, the rotating core 7 will not be pressed downward under the elastic force of the spring 15. When the pressure in the boiler 1 is released, the pressure relief device box 5 is connected to the inside of the boiler 1 and does not circulate with the outside gas, which provides a better testing environment for the pressure test in the boiler 1. When the pressure in the boiler 1 needs to be relieved, the rotating rod 11 is first pressed downward, and the rotating core 7 is moved downward under the drive of the rotating rod 11, so that the limiting rod 13 slides toward the top inside the pressing groove 12 and gradually moves to the bottom of the pressing groove 12. At this time, the rotating core 7 is out of the limiting state, and the rotating core 7 is restored to its initial height under the elastic force of the spring 15. The rotating rod 11 is then rotated, and the rotating rod 11 drives the rotating core 7 to rotate. When the circular hole opening 8 and the air release port 4 gradually overlap, the efficiency of gas release is the fastest, and the pressure relief can be completed quickly. Moreover, when the rotating core 7 rotates inside the limiting cylinder 6, the sealing ring 9 fixedly installed on the top can ensure that the gas does not leak out at the connection, thereby ensuring the sealing performance of the equipment.

[0027] Embodiment 2

[0028] See also Figure 4-5On the basis of the first embodiment, an airbag 16 is fixedly installed on the top of the rotating seat 14, and the airbag 16 is fixed and connected to the air cylinder 18 through a connecting pipe. The air cylinder 18 is fixedly connected to the side of the limiting cylinder 6, and a push rod 19 is slidably connected inside the airbag 16. A fixed plate 20 is fixedly installed on the top of the push rod 19. The fixed plate 20 is slidably connected to the inner wall of the pressure relief device box 5. A sliding cylinder 21 is embedded in the fixed plate 20. The bottom of the sliding cylinder 21 is fixed and connected to a rubber bag 23. A slide plate 25 is slidably connected inside the sliding cylinder 21. A pressure sensor 24 is fixedly installed on the side of the slide plate 25. The pressure sensor 24 is connected to the support rod 26. Sliding connection, a pressure gauge 22 is fixedly installed on the side of the support rod 26 away from the pressure sensor 24, the pressure gauge 22 is electrically connected to the pressure sensor 24, the pressure sensor 24 is induced accordingly, and the measurement result of the air pressure is transmitted to the pressure gauge 22 through a digital signal, so that the operator can observe the specific value of the air pressure through the pressure gauge 22, the rubber bag 23 is filled with nitrogen gas, the air bag 16 is sleeved on the outside of the sliding column 17 and has no contact with the sliding column 17, nitrogen is a stable inert gas, which can avoid explosion when the air pressure changes, and provide protection for the safety inside the boiler 1.

[0029] During use, on the basis of the first embodiment, when the rotating seat 14 is installed and rotated, the airbag 16 will be driven to rotate together, ensuring that the airbag 16 is always located directly below the rotating core 7. When it is necessary to measure the pressure inside the boiler 1, the rotating core 7 will be pressed downward, so that the bottom of the rotating core 7 will contact the airbag 16 and exert downward pressure on the airbag 16. The airbag 16 will deform after being compressed, so that the gas inside the airbag 16 enters the air cylinder 18 through the connecting pipe. The gas pushes the push rod 19 in the air cylinder 18, causing the push rod 19 to slide upward, thereby driving the sliding cylinder 21 to move upward as a whole through the cooperation with the fixed plate 20, and the sliding cylinder 21 drives the air pressure measuring gauge 22 to move upward. Until the air pressure gauge 22 is separated from the storage port on the upper side of the pressure relief device box 5, so that the user can see the air pressure gauge. At this time, the pressure relief device box 5 does not generate air circulation with the outside world. The air pressure inside the pressure relief device box 5 is the air pressure inside the boiler 1. When the air pressure reaches a certain level, the rubber bag 23 is squeezed and deformed, so that the gas inside the rubber bag 23 pushes the slide plate 25 upward. The slide plate 25 transmits the air pressure on one side to the pressure sensor 24 on the other side, so that the pressure sensor 24 is correspondingly induced and the measurement result of the air pressure is transmitted to the air pressure gauge 22 through a digital signal, so that the operator can observe the specific value of the air pressure through the air pressure gauge 22.

[0030] Embodiment 3

[0031] See also Figure 6On the basis of the first embodiment, a pointer 27 is fixedly installed on the top side of the rotating core 7, and a digital scale 28 is fixedly installed on the top of the limit cylinder 6. The direction of the pointer 27 is consistent with the center of the circular hole opening 8. The operator can observe the pointer 27 and the digital scale 28 from the outside to obtain the precise angle, so as to understand the efficiency of the boiler pressure release at this time. A rectangular opening consistent with the size of the fixed plate 20 is opened on the upper side of the pressure relief device box 5. The airbag 16 is made of rubber material, and the pressing groove 12 is clamped with one end of the limiting rod 13. The air pressure gauge 22 will retract into the rectangular opening when not in use, thereby ensuring the safety of the air pressure gauge 22 and enabling the air pressure gauge 22 to be used for a long time.

[0032] During use, on the basis of Example 1, when deflating the inside of the boiler 1, it is necessary to rotate the rotating rod 11, and the rotating core 7 is driven to rotate by the rotating rod 11, so that the pointer 27 rotates around the rotating rod 11, and through the mutual cooperation between the pointer 27 and the digital scale 28, the rotation angle of the rotating core 7 at this time can be clearly observed. When the circular hole opening 8 and the deflating port 4 completely overlap, the pointer 27 points to one side of the deflating port 4. At this time, the efficiency of deflating the boiler 1 is the highest, and the rotation angle is zero. When the rotation angle gradually reaches ninety degrees, the efficiency of pressure relief gradually decreases, and a certain angle can be maintained to achieve stable pressure relief.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A boiler pressure detection and relief device, comprising a boiler (1), characterized in that: The top of the boiler (1) is clamped with a sealing cover (2), the side of the boiler (1) is fixed and connected with a pressure relief device box (5), the bottom of the boiler (1) is fixed with a supporting foot (3), and a pressure relief component is arranged inside the pressure relief device box (5); The pressure relief assembly comprises a limit cylinder (6), the limit cylinder (6) is fixedly installed inside the pressure relief device box (5), the side of the limit cylinder (6) is fixed and connected with a gas relief port (4), the gas relief port (4) penetrates the side of the pressure relief device box (5) and is fixedly connected to the pressure relief device box (5), the limit cylinder (6) is rotatably connected with a rotating core (7) inside, the side of the rotating core (7) is provided with a round hole opening (8), the bottom of the rotating core (7) is slidably connected with a sliding column (17), the outer side of the sliding column (17) is wrapped with A spring (15) is provided inside the rotating core (7), a pressing groove (12) is provided inside the rotating core (7), one end of a limiting rod (13) is slidably connected to the pressing groove (12), the other end of the limiting rod (13) is rotatably connected to a mounting rotating seat (14), the mounting rotating seat (14) is rotatably connected to the bottom side of the pressure relief device box (5), the bottom side of the sliding column (17) is fixedly connected to the mounting rotating seat (14), a rotating shaft (10) is fixedly installed on the top of the rotating core (7), and a rotating rod (11) is fixedly installed on the top side of the rotating shaft (10).

2. A boiler pressure detection and relief device according to claim 1, characterized in that: A sealing ring (9) is fixedly installed at the connection between the rotating core (7) and the top side of the limiting cylinder (6), the top end of the spring (15) is located at the bottom side of the rotating core (7), the outer wall of the rotating core (7) is tightly attached to the inner wall of the limiting cylinder (6), and the air vent (4) and the circular hole opening (8) are of the same size.

3. A boiler pressure detection and pressure relief device according to claim 2, characterized in that: An air bag (16) is fixedly mounted on the top of the mounting rotating seat (14). The air bag (16) is fixed and connected to the air cylinder (18) through a connecting pipe. The air cylinder (18) is fixedly connected to the side of the limiting cylinder (6). A push rod (19) is slidably connected inside the air bag (16). A fixing plate (20) is fixedly mounted on the top of the push rod (19). The fixing plate (20) is slidably connected to the inner wall of the pressure relief device box (5). A sliding cylinder (20) is embedded inside the fixing plate (20). 1), the bottom of the sliding cylinder (21) is fixed and connected to a rubber bag (23), the sliding cylinder (21) is slidably connected to a slide plate (25), a pressure sensor (24) is fixedly installed on the side of the slide plate (25), the pressure sensor (24) is slidably connected to a support rod (26), a pressure gauge (22) is fixedly installed on the side of the support rod (26) away from the pressure sensor (24), and the pressure gauge (22) is electrically connected to the pressure sensor (24).

4. A boiler pressure detection and pressure relief device according to claim 3, characterized in that: The rubber bag (23) is filled with nitrogen gas, and the air bag (16) is sleeved on the outside of the sliding column (17) and has no contact with the sliding column (17).

5. A boiler pressure detection and pressure relief device according to claim 4, characterized in that: A pointer (27) is fixedly mounted on the top side of the rotating core (7), and a digital scale (28) is fixedly mounted on the top of the limiting cylinder (6). The direction of the pointer (27) is consistent with the center of the circular hole opening (8).

6. A boiler pressure detection and relief device according to claim 5, characterized in that: The upper side of the pressure relief device box (5) is provided with a rectangular opening having the same size as the fixing plate (20). The air bag (16) is made of rubber material. The pressing groove (12) is clamped with one end of the limiting rod (13).

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