Safety pressure relief protection device for waste heat steam pipeline

Abstract

The utility model discloses a waste heat steam pipeline safety pressure relief protection device, which relates to the technical field of waste heat steam pipeline safety pressure relief, and comprises a pressure relief valve, a pressure relief pipeline is arranged on the right side of the pressure relief valve, the input end of the pressure relief valve is fixedly connected with the pressure relief pipeline through a flange, and the right side of the pressure relief pipeline is fixedly connected with a protection shell. A pressure relief channel is arranged in the protective shell, the pressure relief pipeline is communicated with the pressure relief channel, the top of the pressure relief channel is round and provided with an arc-shaped groove, an arc-shaped plate is arranged in the protective shell and is in a round labyrinth shape, a pressure relief outlet is formed in the upper right portion of the arc-shaped plate, and a pressure inlet pipeline is fixedly connected to the top of the left side of the pressure relief channel. The input end of the pressure relief valve is connected with the pressure relief pipeline flange, steam enters the protection shell through the pressure inlet pipeline and then enters the middle of the protection shell, steam distribution, speed reduction and noise reduction are achieved through the labyrinth groove formed in the arc-shaped plate, then the steam is discharged from the lower left portion in the protection shell, and the functions of distribution, noise reduction and speed reduction are achieved.

Description

Technical Field

[0001] This utility model relates to the field of safe pressure relief technology for waste heat steam pipelines, and specifically to a safe pressure relief protection device for waste heat steam pipelines. Background Technology

[0002] Waste heat steam pipelines, as a key component of energy recovery systems, are widely used in industries such as metallurgy, chemical industry, power, and building materials. They recover waste heat generated during industrial production (such as kiln exhaust gas and equipment heat dissipation) and convert it into steam, thereby achieving secondary energy utilization and meeting the industrial demand for energy conservation and emission reduction.

[0003] Traditional waste heat steam pipeline safety pressure relief operations mainly rely on manual control and simple mechanical devices. Manual shut-off valves or ball valves are installed at key pipeline nodes (such as steam drums and steam distribution cylinders). When the pressure gauge shows that the pressure exceeds the safe value, the operator manually opens the valve to release some steam to reduce the pressure.

[0004] However, the aforementioned traditional devices require operators to manually open a manual shut-off valve or ball valve to release some steam and reduce pressure when the pressure gauge shows that the pressure exceeds the safe value. This relies on real-time manual pressure monitoring, which results in a delayed response and is prone to overpressure accidents due to untimely operation. Furthermore, residual heat steam can easily rush directly to the pressure relief valve, causing damage to it. Utility Model Content

[0005] To solve the above problems, this utility model provides a safety pressure relief protection device for waste heat steam pipelines, which is achieved through the following technical solution.

[0006] A safety pressure relief protection device for waste heat steam pipeline includes a pressure relief valve, a pressure relief pipeline on the right side of the pressure relief valve, an input end of the pressure relief valve fixedly connected to the pressure relief pipeline via a flange, a protective shell fixedly connected to the right side of the pressure relief pipeline, a through groove on the top of the protective shell, a pressure relief channel inside the protective shell, the pressure relief pipeline communicating with the pressure relief channel, the pressure relief channel being "L"-shaped, the top of the pressure relief channel being circular and having an arc-shaped groove, an arc-shaped plate inside the protective shell, the arc-shaped plate being distributed around the top periphery of the pressure relief channel, the arc-shaped plate being circular and labyrinthine, the upper right of the arc-shaped plate being a pressure relief outlet, and a pressure inlet pipeline fixedly connected to the top left side of the pressure relief channel, and further includes:

[0007] A quick-release mechanism is installed at the top of the pressure relief channel;

[0008] An auxiliary pressure relief mechanism, wherein the auxiliary pressure relief mechanism is used to assist in pressure relief;

[0009] An adjustment mechanism is mounted on top of the auxiliary pressure relief mechanism.

[0010] As a further embodiment of this utility model, the inner wall of the top through groove and the top of the protective shell are provided with a sealing gasket, and the sealing gasket is made of fluororubber.

[0011] As a further embodiment of this utility model, the quick-release mechanism includes a locking plate, a fixing plate fixedly connected to the left and right sides of the top surface of the pressure relief channel, a rotating plate rotatably connected to the top of the fixing plate, an elliptical through groove on the right side of the rotating plate, a base fixedly connected to the center of the top surface of the pressure relief channel, a through groove in the center of the base engaging with the through groove at the top of the pressure relief channel, threaded holes on the left and right sides of the top surface of the base, a locking plate threadedly connected to the threaded holes, the locking plate being "T" shaped, and the locking plate engaging with the rotating plate.

[0012] As a further embodiment of this utility model, the rotating plate is rectangular, and the bottom of the rotating plate abuts against the top surface of the base.

[0013] As a further embodiment of this utility model, the auxiliary pressure relief mechanism includes an auxiliary housing and a spring. The auxiliary housing is fixedly connected to the top surface of the base. The top side of the auxiliary housing is provided with multiple sets of auxiliary pressure relief ports, which are circular. An auxiliary pressure relief pipe is fixedly connected to the bottom inner wall of the auxiliary housing. The middle side of the auxiliary pressure relief pipe is an arc-shaped through groove. An adjusting base is fixedly connected to the top surface of the auxiliary pressure relief pipe. The spring is disposed outside the auxiliary pressure relief pipe and is fixedly connected to the bottom inner wall of the auxiliary housing. A piston is slidably connected to the outer wall of the adjusting base, and the spring is fixedly connected to the piston.

[0014] As a further embodiment of this utility model, the adjusting mechanism includes a knob, the inner wall of the top of the auxiliary pressure relief pipe is provided with a threaded groove, the top of the auxiliary pressure relief pipe is provided with a sliding groove, the sliding groove is located outside the threaded groove, the inner wall of the auxiliary pressure relief pipe is threadedly connected to an adjusting rod, the adjusting rod is slidably connected to the inner wall of the sliding groove, the top surface of the adjusting rod is fixedly connected to a connecting rod, the knob is fixedly connected to the top surface of the connecting rod, the knob is "I" shaped, and the connecting rod is slidably connected to the top of the auxiliary housing.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The steam is connected to the pressure relief pipe flange through the input end of the pressure relief valve. The steam enters the protective shell through the pressure inlet pipe, and then enters the labyrinth groove of the arc plate in the middle of the protective shell to achieve steam diversion, deceleration and noise reduction. Finally, it is discharged from the lower left of the protective shell, which plays the role of diversion, noise reduction and deceleration.

[0017] 2. By connecting the base to the top of the pressure relief channel, rotate the clamping plate to the appropriate angle using the threaded connection. Manually rotate the rotating plate on the top of the fixing plate to clamp the rotating plate between the base and the clamping plate. Then rotate the clamping plate to fix the device, making it easy to disassemble and replace.

[0018] 3. Manually turn the knob to drive the connecting rod to rotate on the inner wall of the auxiliary pressure relief pipe through the threaded connection, thereby adjusting the distance between the base of the auxiliary pressure relief pipe and the base of the connecting rod, limiting the range of spring movement. When the pressure is too high, steam enters the auxiliary pressure relief pipe through the top of the pressure relief channel and is discharged outward to the auxiliary housing, squeezing the piston upward, causing the spring to extend. The piston moves to the upper position of the auxiliary pressure relief port, and the steam is discharged through the auxiliary pressure relief port to relieve pressure, thus playing the role of auxiliary pressure relief and preventing steam from rushing directly to the pressure relief valve due to excessive pressure. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall partial front view sectional structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the quick-release mechanism of this utility model from the left side.

[0023] Figure 4 This is a schematic diagram of the main sectional view of the auxiliary pressure relief mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the front sectional view of the adjustment mechanism of this utility model.

[0025] The attached figures are labeled as follows:

[0026] 11. Pressure relief valve; 12. Pressure relief pipeline; 13. Protective housing; 14. Pressure relief channel; 15. Arc-shaped plate; 16. Pressure inlet pipeline;

[0027] 2. Quick-release mechanism; 21. Fixing plate; 22. Rotating plate; 23. Base; 24. Clamping plate;

[0028] 3. Auxiliary pressure relief mechanism; 31. Auxiliary housing; 32. Auxiliary pressure relief port; 33. Auxiliary pressure relief pipe; 34. Adjustable base; 35. Spring; 36. Piston;

[0029] 4. Adjustment mechanism; 41. Adjustment rod; 42. Connecting rod; 43. Knob. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figure 1-5 As shown, this utility model has the following three specific embodiments.

[0032] Example 1

[0033] A safety pressure relief protection device for waste heat steam pipeline includes a pressure relief valve 11, a pressure relief pipe 12 on the right side of the pressure relief valve 11, the input end of the pressure relief valve 11 being fixedly connected to the pressure relief pipe 12 via a flange, a protective shell 13 fixedly connected to the right side of the pressure relief pipe 12, a through groove on the top of the protective shell 13, a pressure relief channel 14 inside the protective shell 13, the pressure relief pipe 12 communicating with the pressure relief channel 14, the pressure relief channel 14 being L-shaped, the top of the pressure relief channel 14 being circular and having an arc groove, an arc plate 15 inside the protective shell 13, the arc plate 15 being distributed around the top periphery of the pressure relief channel 14, the arc plate 15 being circular and labyrinthine, the upper right of the arc plate 15 being a pressure relief outlet, and a pressure inlet pipe 16 fixedly connected to the top left side of the pressure relief channel 14, and further includes:

[0034] Quick-release mechanism 2 is installed on top of pressure relief channel 14;

[0035] Auxiliary pressure relief mechanism 3 is used for auxiliary pressure relief;

[0036] Adjustment mechanism 4 is installed on top of auxiliary pressure relief mechanism 3.

[0037] The protective housing 13 has a sealing gasket on the inner wall of the top through groove and on the top, and the sealing gasket is made of fluororubber.

[0038] In this embodiment, as Figure 1 and Figure 2As shown, the input end of the pressure relief valve 11 is connected to the flange of the pressure relief pipe 12. Steam enters the interior of the protective shell 13 through the pressure inlet pipe 16. Part of the steam enters the auxiliary pressure relief mechanism 3 for auxiliary pressure relief. The auxiliary pressure relief mechanism 3 and the regulating mechanism 4 are easily disassembled and replaced using the quick-release mechanism 2. The degree of pressure relief is adjusted using the regulating mechanism 4 to prevent the residual heat steam from rushing directly to the pressure relief valve when the pressure is too high, thus playing a protective role. The remaining steam enters the middle of the protective shell 13 and uses the labyrinth groove provided by the arc plate 15 to achieve steam diversion, deceleration and noise reduction. Then, it passes through the pressure relief valve from the lower left of the interior of the protective shell 13, playing the role of diversion, noise reduction and deceleration.

[0039] Example 2

[0040] The difference from Embodiment 1 is that this embodiment discloses a quick-release mechanism:

[0041] The quick-release mechanism 2 includes a clamping plate 24. A fixing plate 21 is fixedly connected to the left and right sides of the top surface of the pressure relief channel 14. A rotating plate 22 is rotatably connected to the top of the fixing plate 21. An elliptical through groove is provided on the right side of the rotating plate 22. A base 23 is fixedly connected to the middle of the top surface of the pressure relief channel 14. A through groove in the middle of the base 23 is connected to the through groove at the top of the pressure relief channel 14. Threaded holes are provided on the left and right sides of the top surface of the base 23. The clamping plate 24 is threadedly connected to the threaded holes. The clamping plate 24 is "T" shaped and is engaged with the rotating plate 22.

[0042] Preferably, the rotating plate 22 is rectangular, and the bottom of the rotating plate 22 abuts against the top surface of the base 23.

[0043] In this embodiment, as Figure 3 As shown, by connecting the base 23 to the top of the pressure relief channel 14, the locking plate 24 is rotated to a suitable angle using a threaded connection. The rotating plate 22 is manually rotated on the top of the fixing plate 21 to lock the rotating plate 22 between the base 23 and the locking plate 24. Then the locking plate 24 is rotated to fix the device, making it easy to disassemble and replace.

[0044] Example 3

[0045] The difference between this embodiment and Embodiment 2 is that this embodiment discloses an auxiliary pressure relief mechanism and an adjustment mechanism:

[0046] The auxiliary pressure relief mechanism 3 includes an auxiliary housing 31 and a spring 35. The auxiliary housing 31 is fixed to the top surface of the base 23. The top side of the auxiliary housing 31 is provided with multiple sets of auxiliary pressure relief ports 32, which are circular. An auxiliary pressure relief pipe 33 is fixed to the bottom inner wall of the auxiliary housing 31. The middle side of the auxiliary pressure relief pipe 33 is an arc-shaped through groove. An adjusting base 34 is fixed to the top surface of the auxiliary pressure relief pipe 33. The spring 35 is located outside the auxiliary pressure relief pipe 33 and is fixed to the bottom inner wall of the auxiliary housing 31. A piston 36 is slidably connected to the outer wall of the adjusting base 34, and the spring 35 is fixed to the piston 36.

[0047] Preferably, the adjusting mechanism 4 includes a knob 43, the inner wall of the top of the auxiliary pressure relief pipe 33 is provided with a threaded groove, the top of the auxiliary pressure relief pipe 33 is provided with a sliding groove, the sliding groove is located outside the threaded groove, the inner wall of the auxiliary pressure relief pipe 33 is threadedly connected to an adjusting rod 41, the adjusting rod 41 is slidably connected to the inner wall of the sliding groove, the top surface of the adjusting rod 41 is fixedly connected to a connecting rod 42, the knob 43 is fixedly connected to the top surface of the connecting rod 42, the knob 43 is in the shape of an "I", and the connecting rod 42 is slidably connected to the top of the auxiliary housing 31.

[0048] In this embodiment, as Figure 4 and Figure 5 As shown, manually turning knob 43 causes connecting rod 42 to rotate within the auxiliary pressure relief pipe 33 via a threaded connection, thereby adjusting the distance between the base of the auxiliary pressure relief pipe 33 and the base of connecting rod 42, limiting the range of motion of spring 35. When the pressure is too high, steam enters the auxiliary pressure relief pipe 33 through the top of pressure relief channel 14 and is then discharged outwards into the auxiliary housing 31, pushing piston 36 upwards and causing spring 35 to extend. Piston 36 moves to the upper position of auxiliary pressure relief port 32, and steam is discharged through auxiliary pressure relief port 32 to relieve pressure, thus playing a role in auxiliary pressure relief. After the pressure is balanced, spring 35 drives piston 36 to move downwards to the initial position.

[0049] The working principle of this utility model is as follows:

[0050] By connecting the base 23 to the top of the pressure relief channel 14, and rotating the clamping plate 24 to a suitable angle using a threaded connection, manually rotate the rotating plate 22 on the top of the fixing plate 21 to clamp the rotating plate 22 between the base 23 and the clamping plate 24. Then rotate the clamping plate 24 to fix the device, making it easy to disassemble and replace. Manually rotate the knob 43 to drive the connecting rod 42 to rotate on the inner wall of the auxiliary pressure relief pipe 33 through a threaded connection, thereby adjusting the distance between the base of the auxiliary pressure relief pipe 33 and the base of the connecting rod 42, limiting the range of motion of the spring 35. The pressure relief valve 11 is connected to the flange of the pressure relief pipe 12 through the input end. When the pressure is too high, steam enters the interior of the protective shell 13 through the pressure inlet pipe 16, and some steam passes through the pressure relief channel 1. 4. After entering the auxiliary pressure relief pipe 33 from the top, the steam is discharged outward into the auxiliary housing 31. The piston 36 is squeezed upward, causing the spring 35 to extend. The piston 36 moves to the upper position of the auxiliary pressure relief port 32, and the steam is discharged through the auxiliary pressure relief port 32 to relieve pressure, which plays a role in auxiliary pressure relief. After the pressure is balanced, the spring 35 drives the piston 36 to move downward to the initial position to discharge some steam. This prevents the residual heat steam from rushing directly to the pressure relief valve when the pressure is too high, thus playing a protective role. The remaining steam enters the middle of the protective housing 13 and uses the labyrinth groove provided by the arc plate 15 to achieve steam diversion, deceleration, and noise reduction. Then, it passes through the pressure relief valve from the lower left of the protective housing 13, which plays a role in diversion, noise reduction, and deceleration.

[0051] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A safety pressure relief protection device for waste heat steam pipelines, comprising a pressure relief valve (11), characterized in that: The pressure relief valve (11) has a pressure relief pipe (12) on its right side. The input end of the pressure relief valve (11) is fixedly connected to the pressure relief pipe (12) via a flange. A protective shell (13) is fixedly connected to the right side of the pressure relief pipe (12). A through groove is provided on the top of the protective shell (13). A pressure relief channel (14) is provided inside the protective shell (13). The pressure relief pipe (12) is connected to the pressure relief channel (14). The pressure relief channel (14) is "L" shaped. The top of the pressure relief channel (14) is circular and has an arc groove. An arc plate (15) is provided inside the protective shell (13). The arc plate (15) is distributed around the top of the pressure relief channel (14). The arc plate (15) is circular and labyrinthine. The upper right side of the arc plate (15) is the pressure relief outlet. A pressure inlet pipe (16) is fixedly connected to the top left side of the pressure relief channel (14). The system also includes: A quick-release mechanism (2) is installed on top of the pressure relief channel (14); Auxiliary pressure relief mechanism (3), the auxiliary pressure relief mechanism (3) is used to assist in pressure relief; Adjustment mechanism (4) is installed on top of auxiliary pressure relief mechanism (3).

2. The waste heat steam pipeline safety pressure relief protection device according to claim 1, characterized in that: The protective housing (13) has a sealing gasket on the inner wall of the top through groove and on the top, and the sealing gasket is made of fluororubber.

3. The waste heat steam pipeline safety pressure relief protection device according to claim 1, characterized in that: The quick-release mechanism (2) includes a clamping plate (24). A fixing plate (21) is fixedly connected to the left and right sides of the top surface of the pressure relief channel (14). A rotating plate (22) is rotatably connected to the top of the fixing plate (21). An elliptical through groove is provided on the right side of the rotating plate (22). A base (23) is fixedly connected to the middle of the top surface of the pressure relief channel (14). A through groove provided in the middle of the base (23) is connected to the through groove at the top of the pressure relief channel (14). Threaded holes are provided on the left and right sides of the top surface of the base (23). A clamping plate (24) is threadedly connected to the threaded hole. The clamping plate (24) is "T" shaped. The clamping plate (24) is engaged with the rotating plate (22).

4. The waste heat steam pipeline safety pressure relief protection device according to claim 3, characterized in that: The rotating plate (22) is rectangular, and the bottom of the rotating plate (22) abuts against the top surface of the base (23).

5. A waste heat steam pipeline safety pressure relief protection device according to claim 3, characterized in that: The auxiliary pressure relief mechanism (3) includes an auxiliary housing (31) and a spring (35). The auxiliary housing (31) is fixed to the top surface of the base (23). The top side of the auxiliary housing (31) is provided with multiple sets of auxiliary pressure relief ports (32). The auxiliary pressure relief ports (32) are circular. The bottom inner wall of the auxiliary housing (31) is fixed to an auxiliary pressure relief pipe (33). The middle side of the auxiliary pressure relief pipe (33) is an arc-shaped through groove. The top surface of the auxiliary pressure relief pipe (33) is fixed to an adjusting base (34). The spring (35) is located outside the auxiliary pressure relief pipe (33). The spring (35) is fixed to the bottom inner wall of the auxiliary housing (31). The outer wall of the adjusting base (34) is slidably connected to a piston (36). The spring (35) is fixed to the piston (36).

6. A waste heat steam pipeline safety pressure relief protection device according to claim 5, characterized in that: The adjustment mechanism (4) includes a knob (43). The inner wall of the top of the auxiliary pressure relief pipe (33) is provided with a threaded groove. The top of the auxiliary pressure relief pipe (33) is provided with a sliding groove. The sliding groove is located outside the threaded groove. The inner wall of the auxiliary pressure relief pipe (33) is threadedly connected to an adjustment rod (41). The adjustment rod (41) is slidably connected to the inner wall of the sliding groove. The top surface of the adjustment rod (41) is fixedly connected to a connecting rod (42). The knob (43) is fixedly connected to the top surface of the connecting rod (42). The knob (43) is "I" shaped. The connecting rod (42) is slidably connected to the top of the auxiliary housing (31).

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