Safety valve assembly

Abstract

The utility model belongs to the technical field of safety valves, and particularly provides a safety valve assembly which comprises a valve body, a silencing pot and a detection part, the valve body comprises an air release port, the silencing pot is vertically arranged and communicates with the air release port, and the detection part is arranged in the silencing pot. By arranging the detection part in the silencing pot, the pressure information in the silencing pot can be monitored, so that a worker can monitor the current situation of the silencing pot so as to predict the failure or fracture accident of the silencing pot, so that measures can be taken to protect the silencing pot, and the situation that the noise of the surrounding environment is increased due to sudden failure or fracture of the silencing pot is avoided; noise pollution is aggravated; and meanwhile, the silencing cylinder is vertically arranged, so that high-pressure gas can be prevented from impacting a worker when the safety valve assembly exhausts gas transversely, and the working safety is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of safety valves, and in particular relates to a safety valve assembly. Background Art

[0002] A safety valve is a special valve that is normally closed under the action of external force. When the medium pressure in the equipment or pipeline exceeds the specified value, it prevents the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium to the outside of the system. During the process of safety valve deflation, the air pressure in the pipeline is very high. When the safety valve starts to deflate, the air flow rate is very high, and the noise generated is very loud, so a muffler is required.

[0003] When the production capacity is expanded, the system working pressure will increase accordingly, and the exhaust pressure of the safety valve will also increase accordingly, which may cause the muffler to fail or rupture, resulting in increased noise in the surrounding environment and aggravated noise pollution. However, the existing safety valve muffler cannot monitor the current status of the safety valve muffler, and it is also impossible to predict the failure or rupture accidents that will occur in the safety valve muffler. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present application is to provide a safety valve assembly, which can monitor the pressure information inside the muffler by setting a detection unit in the muffler, thereby predicting the failure or rupture accidents that will occur in the muffler, so as to take measures to protect the muffler.

[0005] In order to solve the above problems, the present application provides a safety valve assembly, including a valve body, a muffler and a detection unit, the valve body including an air leak port, the muffler is vertically arranged, the muffler is connected to the air leak port, the detection unit is arranged in the muffler, and the detection unit is used to monitor the pressure information inside the muffler.

[0006] Optionally, the safety valve assembly also includes a drainage pipe, an exhaust pipe and a reversing joint, the drainage pipe is connected to the air leak port, the exhaust pipe is connected to the muffler, the reversing joint is arranged between the drainage pipe and the exhaust pipe, the first end of the reversing joint is rotatably connected to the drainage pipe, and the second end of the reversing joint is relatively fixed to the exhaust pipe.

[0007] Optionally, one end of the exhaust pipe away from the reversing joint extends into the muffler to form a flow equalizing pipe, one end of the flow equalizing pipe away from the reversing joint is closed, and a plurality of first muffler holes are opened on the flow equalizing pipe, and the plurality of first muffler holes are slit-shaped.

[0008] Optionally, the flow balancing tube gradually increases in diameter in the direction from the reversing joint toward the muffler.

[0009] Optionally, the muffler is sleeved outside the flow equalizing pipe, and a plurality of second muffler holes are opened on the muffler, and a plurality of the second muffler holes are circular.

[0010] Optionally, the detection unit includes a first detection unit, which is disposed in the current balancing tube and is used to monitor pressure information in the current balancing tube.

[0011] Optionally, the detection unit further includes a second detection unit, which is disposed between the flow balancing tube and the muffler, and is used to monitor pressure information between the flow balancing tube and the muffler.

[0012] Optionally, a sealing structure is provided at the junction of the exhaust pipe and the muffler, and the sealing structure includes a sealing groove and a sealing gasket. The sealing groove is provided along the circumferential direction of the muffler at a portion of the muffler connected to the exhaust pipe near one end of the exhaust pipe, and the sealing gasket is provided in the sealing groove.

[0013] Optionally, the sealing structure further includes a protrusion, and the protrusion is provided on the outer wall of the exhaust pipe at a position relative to the sealing groove along the circumferential direction of the exhaust pipe, and at least a part of the protrusion can be embedded in the sealing groove.

[0014] Optionally, the safety valve assembly further includes a controller and a touch screen, wherein the controller is electrically connected to the detection unit, and the touch screen is electrically connected to the controller.

[0015] Beneficial Effects

[0016] The safety valve assembly provided in the embodiment of the utility model can monitor the pressure information inside the muffler by arranging a detection part in the muffler, so that the staff can monitor the current status of the muffler, thereby predicting the failure or rupture accidents that will occur in the muffler, so as to take measures to protect the muffler and avoid sudden failure or rupture of the muffler, which will lead to increased noise in the surrounding environment and aggravate noise pollution; at the same time, the muffler is arranged vertically, which can avoid the high-pressure gas from impacting the staff when the safety valve assembly is exhausted horizontally, thereby improving the safety of work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a safety valve assembly of an optional embodiment of the present application;

[0018] Figure 2 This is a schematic structural diagram of a muffler according to an optional embodiment of the present application;

[0019] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0020] The reference numerals are:

[0021] 1. Valve body; 11. Air vent; 12. Air inlet; 2. Muffler; 3. Detection unit; 31. First detection unit; 32. Second detection unit; 4. Drain pipe; 5. Exhaust pipe; 51. Flow equalizing pipe; 6. Reversing joint; 7. Sealing groove; 8. Sealing gasket; 9. Bump. DETAILED DESCRIPTION

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] See also Figures 1 to 3As shown, according to an embodiment of the present application, a safety valve assembly is provided, including a valve body 1, a muffler 2 and a detection unit 3, the valve body 1 including an air release port 11, the muffler 2 is vertically arranged, the muffler 2 is communicated with the air release port 11, and the detection unit 3 is arranged in the muffler 2. By arranging the detection unit 3 in the muffler 2, the pressure information inside the muffler 2 can be monitored, so that the staff can monitor the current status of the muffler 2, thereby predicting the failure or rupture accidents that will occur in the muffler 2, so as to take measures to protect the muffler 2, avoid the sudden failure or rupture of the muffler 2, resulting in an increase in the surrounding environmental noise and aggravated noise pollution; at the same time, the muffler 2 is arranged vertically, which can prevent the high-pressure gas from impacting the staff when the safety valve assembly is exhausted horizontally, thereby improving the safety of the work.

[0027] Among them, the safety valve assembly can be applied to pressure vessels, gas supply and distribution equipment or various types of gas collecting pipes. When the system pressure exceeds the rated pressure, the safety valve assembly automatically trips to protect against dangerous situations such as equipment damage and explosion caused by excessive system pressure.

[0028] The safety valve assembly includes a valve body 1, a bottom of which is provided with an air inlet 12, which is used to connect to a pressure vessel, a gas supply and distribution device or various gas collecting pipes; a side wall of the valve body 1 is provided with an air release port 11, which is used to release pressure and exhaust gas.

[0029] The safety valve assembly further includes a muffler 2, which is connected to the air outlet 11 of the valve body 1. The muffler 2 is used to reduce the exhaust noise of the valve body 1, alleviate noise pollution, and improve the acoustic quality of the working environment.

[0030] Specifically, the silencer 2 is arranged vertically, so that the exhaust mode of the valve body 1 is changed from horizontal exhaust to vertical exhaust, which can avoid the impact of high-pressure gas on the workers and improve the safety of work.

[0031] The safety valve assembly further includes a detection unit 3, which is disposed in the muffler 2 and is used to monitor the pressure information inside the muffler 2 in real time. It should be noted that the pressure information may be a specific value of the pressure inside the muffler 2.

[0032] Specifically, the safety valve assembly also includes a controller and a touch screen, the controller is electrically connected to the detection unit 3, and the touch screen is electrically connected to the controller. As an implementation mode, the controller converts the pressure information collected by the detection unit 3 into an electrical signal, and performs appropriate processing and conditioning so that it can be effectively recognized and utilized by the touch screen, such as converting an analog signal into an electrical signal. At this time, the specific value of the internal pressure of the muffler 2 is displayed on the touch screen; as another implementation mode, the controller compares the pressure information collected by the detection unit 3 with a pre-stored threshold value to send a warning signal to the touch screen when the pressure information is greater than the pre-stored threshold value. At this time, the state of the muffler 2 is displayed on the touch screen, such as normal pressure state, low pressure state, high pressure state, etc.

[0033] In some possible implementations disclosed in this application, see Figure 1 As shown, the safety valve assembly also includes a drainage pipe 4, an exhaust pipe 5 and a reversing joint 6. The drainage pipe 4 is connected to the air release port 11, the exhaust pipe 5 is connected to the muffler 2, and the reversing joint 6 is arranged between the drainage pipe 4 and the exhaust pipe 5. The first end of the reversing joint 6 is rotatably connected to the drainage pipe 4, and the second end of the reversing joint 6 is relatively fixed to the exhaust pipe 5. By providing the reversing joint 6, the direction of the exhaust pipe 5 can be flexibly adjusted to meet the installation requirements of the valve body 1 at different positions, thereby improving the user experience.

[0034] Among them, the drainage pipe 4 can be a galvanized steel pipe or a stainless steel pipe. The drainage pipe 4 is set at the exhaust port of the valve body 1. The drainage pipe 4 is arranged horizontally. The drainage pipe 4 is specifically used to connect the pressure relief port of the valve body 1, so that the exhaust pipe 5 and the muffler 2 can be installed in different fixed positions of the valve body 1.

[0035] Among them, the exhaust pipe 5 can also be a galvanized steel pipe or a stainless steel pipe. The exhaust pipe 5 is used to connect the drainage pipe 4 and the muffler 2. The exhaust pipe 5 is specifically arranged vertically, which can prevent high-pressure gas from impacting the workers when the safety valve assembly is exhausted horizontally, thereby improving work safety.

[0036] Among them, the horizontally arranged drainage pipe 4 is connected to the vertically arranged exhaust pipe 5 through a reversing joint 6. The reversing joint 6 is used to change the flow direction of the gas on the one hand, and to realize the connection of the drainage pipe 4 and the exhaust pipe 5 in different directions and angles on the other hand, thereby increasing the flexibility and diversity of the pipeline connection.

[0037] Specifically, the first end of the reversing joint 6 has a rotating pipe joint, and the first end of the reversing joint 6 is rotatably connected to the drainage pipe 4 through the rotating pipe joint; the second end of the reversing joint 6 has a fixed pipe joint, and the second end of the reversing joint 6 is relatively fixed to the exhaust pipe 5 through the fixed pipe joint. It can be understood that the first end of the reversing joint 6 can be an end of the reversing joint 6 close to the drainage pipe 4, and the second end of the reversing joint 6 can be an end of the reversing joint 6 close to the exhaust pipe 5.

[0038] Among them, in the embodiment of the present application, the reversing joint 6 is a sleeve-type adjustable end bend pipe joint.

[0039] In the embodiment of the present application, the angle between the first end and the second end of the reversing joint 6 is 90°.

[0040] Specifically, when the reversing joint 6 is rotated, the exhaust pipe 5 is adapted to rotate with the drainage pipe 4 as the rotation center, and the direction of the exhaust pipe 5 can be flexibly adjusted to meet the installation requirements of the valve body 1 at different positions, thereby improving the user experience. For example, when the reversing joint 6 is rotated, the direction of the exhaust pipe 5 is adjusted to be vertically upward or vertically downward.

[0041] In some possible implementations disclosed in this application, see Figure 2 As shown, one end of the exhaust pipe 5 away from the reversing joint 6 extends into the muffler 2 to form a flow equalizing pipe 51. One end of the flow equalizing pipe 51 away from the reversing joint 6 is closed. The flow equalizing pipe 51 is provided with a plurality of first muffler holes, and the plurality of first muffler holes are slit-shaped. By providing the flow equalizing pipe 51, the gas is evenly discharged from the flow equalizing pipe 51 into the muffler 2, reducing the impact force on the wall of the muffler 2 and improving the working conditions of the muffler 2.

[0042] The flow equalizing pipe 51 is the portion of the exhaust pipe 5 extending into the muffler 2 .

[0043] The axis of the flow equalizing tube 51 coincides with the axis of the muffler 2 , which can ensure that the impact force on each point of the muffler 2 wall is the same, thereby improving the operation of the muffler 2 .

[0044] The exhaust pipe 5 and the flow equalizing pipe 51 may be integrally formed, which can reduce the mechanical failure rate.

[0045] Specifically, the end of the flow equalizing tube 51 extending into the muffler 2 is sealed, and a plurality of first muffler holes are evenly opened on the outer wall of the flow equalizing tube 51 along the circumferential direction. The high-pressure gas is discharged into the muffler 2 through the plurality of first muffler holes, which can reduce the pressure and velocity of the gas discharged into the muffler 2, thereby reducing the impact force on the wall of the muffler 2 and extending the service life of the muffler 2.

[0046] Among them, several first muffler holes are slit-shaped, and the slit-shaped first muffler holes extend along the axial direction of the flow equalizing tube 51. By setting several first muffler holes as slit-shaped, the gas is relatively less obstructed, thereby reducing the internal pressure of the flow equalizing tube 51 and extending the service life of the flow equalizing tube 51.

[0047] In some possible implementations disclosed in this application, see Figure 2As shown, the diameter of the flow balancing tube 51 gradually increases in the direction from the reversing joint 6 to the muffler 2. By setting the flow balancing tube 51 to gradually increase in diameter along the gas flow direction, the pressure and speed of the gas discharged into the muffler 2 can be further reduced, and the noise reduction effect can be optimized.

[0048] The flow equalizing tube 51 is roughly truncated cone-shaped, and the end of the truncated cone-shaped flow equalizing tube 51 with a larger cross-sectional area is arranged away from the exhaust pipe 5 , and the end of the truncated cone-shaped flow equalizing tube 51 with a smaller cross-sectional area is arranged close to the exhaust pipe 5 .

[0049] Specifically, the inner diameter of the end of the equalizer tube 51 with a smaller cross-sectional area is the same as the inner diameter of the exhaust pipe 5. It should be noted that when the gas enters the equalizer tube 51 with a gradually increasing inner diameter from the exhaust pipe 5 with a smaller inner diameter, the volume of the gas increases, the pressure decreases, and the speed also decreases.

[0050] In some possible implementations disclosed in this application, see Figure 1 and Figure 2 As shown, the muffler 2 is sleeved outside the flow equalizing tube 51, and a plurality of second muffler holes are provided on the muffler 2, and the plurality of second muffler holes are circular. By providing a plurality of second muffler holes on the muffler 2, the noise can be reduced to a certain extent while the gas passes through, so as to alleviate noise pollution and improve the acoustic quality of the working environment.

[0051] The silencer 2 is roughly cylindrical, and is sleeved on the flow equalizing pipe 51 .

[0052] Specifically, a plurality of second silencer holes are evenly arranged on the silencer 2 along the circumferential direction of the silencer 2. As an implementation mode, the plurality of second silencer holes are arranged in a triangle; as another implementation mode, the plurality of second silencer holes are arranged in a rectangle. In the embodiment of the present application, the plurality of second silencer holes are arranged in a triangle. On the one hand, the plurality of second silencer holes can be arranged more compactly within a limited area to make full use of the space. On the other hand, it helps to make the gas pressure and airflow distribution through the silencer 2 more uniform, reduce local pressure concentration and airflow turbulence, and thus reduce the possibility of noise generation.

[0053] Among them, in the embodiment of the present application, several second silencer holes are circular, which is easy to process and manufacture the silencer 2 and reduces the production cost of the silencer 2.

[0054] In some possible implementations disclosed in this application, see Figure 2 As shown, the detection unit 3 includes a first detection unit 31, and the first detection unit 31 is arranged in the flow balancing tube 51. By arranging the first detection unit 31 in the flow balancing tube 51, the pressure information on the wall of the flow balancing tube 51 can be monitored, so that the staff can monitor the current status of the flow balancing tube 51, thereby predicting the failure or rupture accident that will occur in the flow balancing tube 51, so as to take measures to protect the muffler 2.

[0055] The first detection unit 31 may be a pressure sensor, specifically a gas pressure sensor.

[0056] Specifically, the first detection unit 31 is disposed in the flow balancing tube 51. In one embodiment, the first detection unit 31 is disposed on the inner wall of the closed end of the flow balancing tube 51; in another embodiment, the first detection unit 31 is disposed on the inner wall of the flow balancing tube 51 in the circumferential direction.

[0057] It can be understood that the connection cable of the first detection unit 31 can pass through the first silencer hole and the second silencer hole in sequence to lead out of the silencer tube 2 and connect with the controller.

[0058] In some possible implementations disclosed in this application, see Figure 2 As shown, the detection unit 3 also includes a second detection unit 32, which is arranged between the flow balancing tube 51 and the muffler 2. By arranging the second detection unit 32 between the flow balancing tube 51 and the muffler 2, the pressure information on the wall of the muffler 2 can be monitored, so that the staff can monitor the current status of the muffler 2, thereby predicting the failure or rupture accidents that will occur in the muffler 2, so as to take measures to protect the muffler 2.

[0059] The second detection unit 32 may also be a pressure sensor, specifically a gas pressure sensor.

[0060] Specifically, the second detection unit 32 is arranged between the outer wall of the flow equalizing pipe 51 and the inner wall of the muffler 2. As an embodiment, the second detection unit 32 is arranged on the inner wall of the muffler 2 away from the end of the exhaust pipe 5; as another embodiment, the second detection unit 32 is arranged on the inner wall of the muffler 2 in the circumferential direction.

[0061] It can be understood that the connection cable of the second detection unit 32 can be led out through the second muffler hole and connected to the controller.

[0062] In some possible implementations disclosed in this application, see Figure 2 and Figure 3 As shown, a sealing structure is provided at the joint of the exhaust pipe 5 and the muffler 2, and the sealing structure includes a sealing groove 7 and a sealing gasket 8. A sealing groove 7 is provided along the circumferential direction of the muffler 2 at the portion of the muffler 2 near one end of the exhaust pipe 5 connected to the exhaust pipe 5, and a sealing gasket 8 is provided in the sealing groove 7. By providing a sealing structure at the joint of the exhaust pipe 5 and the muffler 2, noise leakage can be prevented, thereby enhancing the noise treatment effect. It should be noted that when there is a small gap at the joint of the exhaust pipe 5 and the muffler 2,

[0063] The sealing structure includes a sealing groove 7 , which is substantially an annular groove. The sealing groove 7 is provided on an annular joint surface where one end of the muffler 2 close to the exhaust pipe 5 contacts the exhaust pipe 5 .

[0064] The sealing structure further includes a sealing gasket 8, which can be an O-ring. For example, the first sealing member 3 is a high temperature resistant O-ring, a normal temperature O-ring, or a low temperature O-ring, which can be selected according to actual conditions.

[0065] Specifically, the sealing gasket 8 is disposed in the sealing groove 7 , which can ensure that the sound inside the muffler 2 will not leak out from the annular joint surface between the muffler 2 and the exhaust pipe 5 , thereby ensuring the overall noise reduction effect of the muffler 2 .

[0066] In some possible implementations disclosed in this application, see Figure 2 and Figure 3 As shown, the sealing structure further includes a protrusion 9, which is provided on the outer wall of the exhaust pipe 5 at a position relative to the sealing groove 7 along the circumferential direction of the exhaust pipe 5, and at least part of the protrusion 9 can be embedded in the sealing groove 7. By providing the protrusion 9 on the outer wall of the exhaust pipe 5, the sealing gasket 8 can be squeezed to improve the sealing effect of the sealing structure.

[0067] The protrusion 9 and the sealing groove 7 are arranged opposite to each other along the radial direction of the exhaust pipe 5 and the muffler 2 .

[0068] Specifically, after the exhaust pipe 5 is connected to the muffler 2, the protrusion 9 on the exhaust pipe 5 is correspondingly inserted into the sealing groove 7 of the muffler 2, and a tight sealing structure can be achieved by squeezing the sealing gasket 8.

[0069] The safety valve assembly provided in the embodiment of the present application can monitor the pressure information inside the muffler 2 by arranging a detection unit 3 inside the muffler 2, so that the staff can monitor the current status of the muffler 2, thereby predicting the failure or rupture accidents that will occur in the muffler 2, so as to take measures to protect the muffler 2 and avoid the sudden failure or rupture of the muffler 2, which will lead to an increase in the surrounding environmental noise and aggravate the noise pollution; at the same time, the muffler 2 is arranged vertically, which can avoid the high-pressure gas from impacting the staff when the safety valve assembly is exhausted horizontally, thereby improving the safety of work.

[0070] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0071] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A safety valve assembly, characterized in that: The invention comprises a valve body (1), a silencer (2) and a detection unit (3), wherein the valve body (1) comprises an air leakage port (11), the silencer (2) is arranged vertically, the silencer (2) is connected to the air leakage port (11), the detection unit (3) is arranged inside the silencer (2), and the detection unit (3) is used to monitor the pressure information inside the silencer (2).

2. The safety valve assembly according to claim 1, characterized in that: The safety valve assembly further comprises a drainage pipe (4), an exhaust pipe (5) and a reversing joint (6); the drainage pipe (4) is connected to the air leakage port (11); the exhaust pipe (5) is connected to the muffler (2); the reversing joint (6) is arranged between the drainage pipe (4) and the exhaust pipe (5); a first end of the reversing joint (6) is rotatably connected to the drainage pipe (4); and a second end of the reversing joint (6) is relatively fixed to the exhaust pipe (5).

3. The safety valve assembly according to claim 2, characterized in that: One end of the exhaust pipe (5) away from the reversing joint (6) extends into the muffler (2) to form a flow equalizing pipe (51), one end of the flow equalizing pipe (51) away from the reversing joint (6) is closed, and a plurality of first muffler holes are provided on the flow equalizing pipe (51), and the plurality of first muffler holes are slit-shaped.

4. The safety valve assembly according to claim 3, characterized in that: The diameter of the flow equalizing pipe (51) gradually increases in the direction from the reversing joint (6) toward the muffler (2).

5. The safety valve assembly according to claim 3, characterized in that: The silencer (2) is sleeved outside the flow equalizing pipe (51), and a plurality of second silencer holes are provided on the silencer (2), and the plurality of second silencer holes are circular.

6. The safety valve assembly according to claim 3, characterized in that: The detection part (3) comprises a first detection unit (31), wherein the first detection unit (31) is arranged in the flow balancing tube (51), and the first detection unit (31) is used to monitor pressure information in the flow balancing tube (51).

7. The safety valve assembly according to claim 5, characterized in that: The detection section (3) further comprises a second detection unit (32), wherein the second detection unit (32) is arranged between the flow balancing tube (51) and the muffler (2), and the second detection unit (32) is used to monitor the pressure information between the flow balancing tube (51) and the muffler (2).

8. The safety valve assembly according to claim 2, characterized in that: A sealing structure is provided at the junction of the exhaust pipe (5) and the muffler (2), the sealing structure comprising a sealing groove (7) and a sealing gasket (8); the sealing groove (7) is provided along the circumferential direction of the muffler (2) at a portion of the muffler (2) close to one end of the exhaust pipe (5) where the muffler (2) is connected to the exhaust pipe (5), and the sealing gasket (8) is provided in the sealing groove (7).

9. The safety valve assembly according to claim 8, characterized in that: The sealing structure further comprises a protrusion (9), which is arranged on the outer wall of the exhaust pipe (5) at a position relative to the sealing groove (7) along the circumferential direction of the exhaust pipe (5), and at least a portion of the protrusion (9) can be embedded in the sealing groove (7).

10. The safety valve assembly according to claim 1, characterized in that: The safety valve assembly further comprises a controller and a touch screen, wherein the controller is electrically connected to the detection part (3), and the touch screen is electrically connected to the controller.

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