Safety valve for kettle body
By designing a safety valve for the vessel body and using a gas-liquid separator to separate the fluid output from the vessel body, the problem of material escape during pressure relief was solved, thus achieving safe pressure relief of the vessel body and recycling of materials.
Patent Information
- Application Number
- CN202520110445.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In high-temperature and high-pressure reactors, reactants can easily escape when pressure is released, leading to an imbalance in material ratios and waste.
A safety valve for a reactor body was designed, comprising a shell, valve seat, valve core, valve disc, spring, and gas-liquid separator. The gas-liquid separator separates the gas and liquid, allowing the gas to be discharged from the reactor body and the liquid to flow back into the reactor body, thus preventing material waste.
This allows for timely pressure relief of the reactor, while also preventing waste of reactants and maintaining their balance.
Smart Images
Figure CN223595109U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of cauldron body pressure relief, especially relates to a safety valve for cauldron body. BACKGROUND
[0002] In the production process of high molecular materials, high temperature and high pressure reaction conditions are involved, and there are certain uncontrollable factors. Under severe reaction conditions, excessive pressure may leak at the weld or the sealing gasket deformed due to high temperature, causing safety hazards to production.
[0003] Therefore, the general reaction cauldron body is provided with a safety valve, which is used for timely pressure relief when the pressure in the cauldron body suddenly rises, and stabilizes the pressure value in the cauldron body by discharging part of the fluid. However, when pressure relief occurs, part of the reaction material may escape from the cauldron body due to the entrapment of gas, resulting in a decrease in the reaction material in the cauldron body, an imbalance in the proportion of materials, and waste of reaction materials.
[0004] Therefore, there is an urgent need for a safety valve for cauldron body to solve the above technical problems. INVENTION CONTENTS
[0005] The utility model aims at providing a safety valve for cauldron body, which can timely relieve pressure and prevent waste of reaction materials.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] The safety valve for cauldron body comprises:
[0008] The shell comprises an inlet end and an outlet end that can communicate with each other, the inlet end is fixed to the cauldron body and communicates with the inside of the cauldron body;
[0009] The valve seat is installed on the inlet end and is sealed along the circumference of the inner wall of the shell, and the valve seat is provided with a discharge port and a backflow port;
[0010] The valve core and the valve flap, the valve core can block the discharge port, the valve flap can block the communication between the inlet end and the outlet end, and the fluid output by the cauldron body can drive the valve core and the valve flap to move relative to the shell, so that the discharge port and the backflow port are both communicated with the outlet end;
[0011] The spring makes the valve flap always have the tendency to block the inlet end and the outlet end, and makes the valve flap always have the tendency to block the discharge port;
[0012] A gas-liquid separator is installed at the outlet end of the kettle body, and is used for gas-liquid separation of the fluid output by the kettle body. The gas can be discharged from the kettle body through the outlet end, and the liquid can be returned to the kettle body through the reflux port.
[0013] As a preferred technical solution of the kettle body safety valve, the gas-liquid separator comprises a waterproof air-permeable membrane. The waterproof air-permeable membrane only allows the gas to pass through and only allows the gas to pass through in one direction.
[0014] As a preferred technical solution of the kettle body safety valve, the gas-liquid separator further comprises a jacket. The jacket is in the form of a ring. The jacket can be filled with a refrigerant. The fluid contacts the jacket and condenses into the liquid.
[0015] As a preferred technical solution of the kettle body safety valve, the gas-liquid separator further comprises a first valve body and a second valve body. The first valve body is used to control the opening and closing state of the input end of the jacket. The second valve body is used to control the opening and closing state of the output end of the jacket.
[0016] As a preferred technical solution of the kettle body safety valve, it further comprises a first gasket. The spring acts on the valve disc through the first gasket.
[0017] As a preferred technical solution of the kettle body safety valve, it further comprises a guide rod. One end of the guide rod is fixed relative to the shell, and the other end is slidably inserted into the valve disc. The spring is sleeved outside the guide rod.
[0018] As a preferred technical solution of the kettle body safety valve, it further comprises a threshold adjustment assembly. The threshold adjustment assembly comprises an adjustment member, an adjustment nut, and a second gasket. The adjustment member is inserted into the shell and can slide along the axial direction of the guide rod relative to the shell. The adjustment member acts on the spring through the second gasket and can change the compression amount of the spring. The adjustment nut is threadedly connected with the guide rod and can lock the relative position of the adjustment member and the guide rod.
[0019] As a preferred technical solution of the kettle body safety valve, it further comprises a valve cap. The valve cap is detachably connected with the shell and can be externally covered outside the adjustment nut.
[0020] As a preferred technical solution of the kettle body safety valve, the shell and the kettle body are fixed by a flange structure.
[0021] As a preferred technical solution of the kettle body safety valve, the shell comprises a first shell and a second shell. The first shell and the second shell are detachably connected. The second shell is fixed with the kettle body.
[0022] The utility model discloses beneficial effects:
[0023] The utility model provides a kind of safety valve for kettle body, including shell, valve seat, valve core, valve flap, spring and gas-liquid separator. Among them, shell includes import end and export end that can be interconnected, import end is fixed with kettle body and is communicated with the inside of kettle body;Valve seat is installed in import end and is circumferentially sealed with the inner peripheral wall of shell, and valve seat is provided with discharge port and backflow port;Valve core can block discharge port, valve flap can block the communication of import end and export end, the fluid output by kettle body can drive valve core and valve flap to move relative to shell, so that discharge port and backflow port are all communicated with export end;Spring makes valve flap always have the tendency of blocking import end and export end, and makes valve flap always have the tendency of blocking discharge port;Gas-liquid separator is installed in export end, for the gas-liquid separation of fluid output by kettle body, gas can be discharged from kettle body through export end, and liquid can return to kettle body through backflow port. Shell includes first pipe section and second pipe section, first pipe section is fixedly connected with second pipe section and is communicated, first pipe section and second pipe section are vertically arranged in T shape, one end of first pipe section is import end of shell for being fixed with the shell of kettle body, and can be communicated with the inside of shell, and second pipe section is export end of shell for being communicated with outdoor environment of kettle body;Valve seat is fixed in first pipe section, and the circumferential edge of valve seat is sealed with the inner peripheral wall of first pipe section, and valve seat is provided with discharge port and backflow port;Valve core can move along the axis of first pipe section relative to valve seat to switch the first position and the second position of valve core, when valve core is in the first position, valve core blocks discharge port of valve seat, preventing fluid output by kettle body from passing through valve seat, when valve core is in the second position, valve core is away from kettle body, so that discharge port is open, and fluid can pass through valve seat;Valve flap is slidably arranged in shell, located on the side of valve core away from valve seat and at the connection of first pipe section and second pipe section, valve flap relative to shell includes third position and fourth position, when valve flap is in the third position, valve flap blocks second pipe section, when valve flap is in the fourth position, valve flap is away from kettle body, so that second pipe section is communicated with first pipe section, when valve core moves from its first position to second position, valve core abuts against valve flap and drives valve flap to move from third position to fourth position. Spring is installed in first pipe section, located on the side of valve flap away from valve core, spring acts on valve flap so that valve flap always has the tendency of moving to its third position, i. e. maintaining the blockage of first pipe section and second pipe section, and at the same time, valve flap acts on valve core so that valve core always has the tendency of moving to its first position, i. e. maintaining the closure of discharge port. In this way, when the pressure P in kettle body satisfies P>F, F is the pressure of spring acting on valve flap, fluid in kettle body can drive valve core to move from first position to second position, so that discharge port is open, spring is deformed, and at the same time, valve core also acts on valve flap, so that valve flap moves from third position to fourth position, so that first pipe section and second pipe section are communicated, and fluid can enter the export end of shell.The outlet end is provided with a gas-liquid separator, which can intercept liquid and only allow gas to pass unidirectionally, thereby achieving pressure relief of the kettle body, while the intercepted liquid can return to the kettle body through the backflow port of the valve seat, avoiding waste of the reaction material. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.
[0025] Figure 1 is a structural schematic diagram of the safety valve for the kettle body provided by the embodiments of the present application.
[0026] In the drawings:
[0027] 1, kettle body;
[0028] 10, shell; 10a, first shell; 10b, second shell; 11, inlet end; 12, outlet end;
[0029] 20, valve seat; 21, discharge port; 22, backflow port;
[0030] 31, valve core; 32, valve flap;
[0031] 41, spring; 42, first gasket; 43, guide rod;
[0032] 50, gas-liquid separator; 51, waterproof air-permeable membrane; 52, jacket; 53, first valve body; 54, second valve body;
[0033] 60, threshold adjusting assembly; 61, adjusting piece; 62, adjusting nut; 63, second gasket;
[0034] 70, valve cap. DETAILED DESCRIPTION
[0035] The present application will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all the structures.
[0036] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through the indirect connection of intermediate medium, can be two elements internal communication or two element mutual action relation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0037] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the direct contact of the first and second features, also can include the contact of the first and second features not direct contact but through the contact between other features between them. Moreover, the first feature is "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0038] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "right", etc. is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0039] As Figure 1The utility model provides a kind of safety valve for cauldron body, including shell 10, valve seat 20, valve core 31, valve flap 32, spring 41 and gas-liquid separator 50.Wherein, shell 10 includes the import end 11 and export end 12 that can be interconnected, import end 11 is fixed with cauldron body 1 and with the inside communication of cauldron body 1;Valve seat 20 is installed in import end 11 and with the inner circumferential wall of shell 10 circumferentially sealed, valve seat 20 is opened with drain 21 and backflow 22;Valve core 31 can block drain 21, valve flap 32 can block the communication of import end 11 and export end 12, the fluid that cauldron body 1 exports can drive valve core 31 and valve flap 32 relative shell 10 move, so that drain 21 and backflow 22 are all communicated with export end 12;Spring 41 makes valve flap 32 always have the tendency of blocking import end 11 and export end 12, and makes valve flap 32 always have the tendency of blocking drain 21;Gas-liquid separator 50 is installed in export end 12, for carrying out gas-liquid separation to the fluid that cauldron body 1 exports, gas can be discharged cauldron body 1 by export end 12, and liquid can be returned cauldron body 1 by backflow 22.
[0040] Exemplarily, the shell 10 comprises a first pipe segment and a second pipe segment, the first pipe segment is fixedly connected with the second pipe segment and in communication, the first pipe segment and the second pipe segment are arranged in a T shape vertically, one end of the first pipe segment is an inlet end 11 of the shell 10 for being fixed with the kettle body 1 and capable of being in communication with the inside of the shell 10, and the second pipe segment is an outlet end 12 of the shell 10 for being in communication with the outdoor environment of the kettle body 1; the valve seat 20 is fixed in the first pipe segment, the peripheral edge of the valve seat 20 is sealed with the inner peripheral wall of the first pipe segment, and the valve seat 20 is provided with a discharge port 21 and a backflow port 22; the valve core 31 is capable of moving along the axis of the first pipe segment relative to the valve seat 20 to switch the first position and the second position of the valve core 31, when the valve core 31 is in the first position, the valve core 31 blocks the discharge port 21 of the valve seat 20 to prevent the fluid output by the kettle body 1 from passing through the valve seat 20, when the valve core 31 is in the second position, the valve core 31 is away from the kettle body 1 so that the discharge port 21 is open and the fluid can pass through the valve seat 20; the valve flap 32 is slidably arranged in the shell 10, located on the side of the valve core 31 away from the valve seat 20 and at the connection between the first pipe segment and the second pipe segment, the valve flap 32 relative to the shell 10 comprises a third position and a fourth position, when the valve flap 32 is in the third position, the valve flap 32 blocks the second pipe segment, when the valve flap 32 is in the fourth position, the valve flap 32 is away from the kettle body 1 so that the second pipe segment is in communication with the first pipe segment, when the valve core 31 moves from the first position to the second position, the valve core 31 abuts against the valve flap 32 and drives the valve flap 32 to move from the third position to the fourth position. The spring 41 is installed in the first pipe segment, located on the side of the valve flap 32 away from the valve core 31, the spring 41 acts on the valve flap 32 so that the valve flap 32 always has a tendency to move to the third position, that is, to keep the first pipe segment and the second pipe segment blocked, at the same time, the spring 41 acts on the valve core 31 through the valve flap 32 so that the valve core 31 always has a tendency to move to the first position, that is, to keep the discharge port 21 closed. In this way, when the pressure P in the kettle body 1 satisfies P>F, F is the pressure of the spring 41 acting on the valve flap 32, the fluid in the kettle body 1 can drive the valve core 31 to move from the first position to the second position so that the discharge port 21 is open, the spring 41 is deformed, at the same time, the valve core 31 also acts on the valve flap 32 so that the valve flap 32 moves from the third position to the fourth position, so that the first pipe segment and the second pipe segment are in communication, and the fluid can enter the outlet end 12 of the shell 10. The outlet end 12 is provided with a gas-liquid separator 50, the fluid includes liquid and gas, the gas-liquid separator 50 can intercept the liquid and only allow the gas to pass through in one direction, thereby achieving pressure relief of the kettle body 1, and the intercepted liquid can return to the kettle body 1 through the backflow port 22 of the valve seat 20, avoiding waste of the reaction material. When the pressure P in the kettle body 1 satisfies P<F, the spring 41 returns to the third position against the valve flap 32, and the valve core 31 returns to the first position.
[0041] Further, in the vertical direction, the backflow port 22 is located below the discharge port 21, so that when the valve element 31 is lifted by the fluid, part of the liquid, due to its greater density than that of the gas, is relatively heavy in mass, and under the action of gravity, directly flows to the backflow port 22.
[0042] Further, the valve disc 32 is centrally provided with a slot on the side facing the valve element 31, and the valve element 31 can be inserted into the slot.
[0043] Further, the slot is provided with a guide surface, so that the valve element 31 is more easily inserted into the slot.
[0044] Further, the backflow port 22 is provided with a third valve body for controlling the opening and closing state of the backflow port 22.
[0045] Optionally, the gas-liquid separator 50 comprises a waterproof air-permeable membrane 51, which allows only gas to pass through and only gas can pass through the waterproof air-permeable membrane 51 in one direction.
[0046] Illustratively, the waterproof air-permeable membrane 51 is deployed in the outlet end 12, and the peripheral edge of the waterproof air-permeable membrane 51 is sealed against the inner peripheral wall of the shell 10, so that the fluid to be discharged from the kettle body 1 through the outlet end 12 all needs to pass through the waterproof air-permeable membrane 51, including gas and liquid. Since the spacing between gas molecules is large, they can pass through the air-permeable holes of the waterproof air-permeable membrane 51 during diffusion. The spacing between liquid molecules is smaller than the spacing of the air-permeable holes, and under the action of surface tension, the liquid molecules cannot pass through the waterproof air-permeable membrane 51.
[0047] It should be noted that the waterproof air-permeable membrane 51 is a prior art, and its specific structure and principle will not be described here.
[0048] Optionally, the gas-liquid separator 50 further comprises a jacket 52, which is in the form of a circular ring, and the jacket 52 can be filled with a coolant. After the fluid contacts the jacket 52, it condenses into a liquid.
[0049] Illustratively, the jacket 52 is a hollow ring structure, and is mounted on the peripheral wall of the outlet end 12 of the shell 10. The jacket 52 can be filled with a coolant, and the temperature of the coolant is lower than that of the fluid discharged from the kettle body 1 and satisfies the condensation condition. When the fluid discharged from the kettle body 1 enters the outlet end 12, due to the temperature difference, part of the fluid condenses into a liquid, which is intercepted by the waterproof air-permeable membrane 51, and the liquid can return to the kettle body 1 through the backflow port 22. In this way, to some extent, the reactant material can be prevented from escaping with the gas when the pressure is released.
[0050] Further, the jacket 52 can be provided upstream of the waterproof air-permeable membrane 51.
[0051] Further, the waterproof air-permeable membrane 51 is mounted on the shell 10 by the jacket 52.
[0052] It should be noted that after the jacket 52 contacts the shell 10, the shell 10 in a certain area can exchange heat with the refrigerant, so that the temperature of the shell 10 is reduced, that is, the fluid discharged from the kettle body 1 can also be condensed after contacting the shell 10 in the area, instead of having to be in direct contact with the jacket 52.
[0053] Optionally, the gas-liquid separator 50 further comprises a first valve body 53 and a second valve body 54, the first valve body 53 is used to control the opening and closing state of the input end of the jacket 52, and the second valve body 54 is used to control the opening and closing state of the output end of the jacket 52.
[0054] In this way, when the first valve body 53 and the second valve body 54 are both opened, the refrigerant can be circulated and injected into the jacket 52; when the first valve body 53 and the second valve body 54 are both closed, the refrigerant can be stored in the jacket 52.
[0055] Optionally, the kettle safety valve further comprises a first gasket 42, and the spring 41 acts on the valve disc 32 through the first gasket 42. Specifically, the spring 41 acts on the valve disc 32 through the first gasket 42 with an area S1, which satisfies S1>S2, S2 being the area of the spring 41 directly acting on the valve disc 32. In this way, the first gasket 42 can make the valve disc 32 bear force uniformly.
[0056] Optionally, the kettle safety valve further comprises a guide rod 43, one end of the guide rod 43 is fixed relative to the shell 10, the other end is slidingly inserted into the valve disc 32, and the spring 41 is sleeved outside the guide rod 43.
[0057] Illustratively, a side wall of the shell 10 opposite to the inlet end 11 is provided with a first threaded hole, one end of the guide rod 43 is inserted into the first threaded hole and is threadedly connected with the shell 10, so that the guide rod 43 is kept fixed relative to the shell 10. A blind hole is formed in a side of the valve disc 32 opposite to the valve core 31, the other end of the guide rod 43 is inserted into the blind hole, and a moving gap is left between the axial end face of the guide rod 43 and the bottom of the blind hole, so that the guide rod 43 does not interfere with the valve disc 32 when the valve disc 32 moves relative to the shell 10. The spring 41 is sleeved outside the guide rod 43, which can regulate the deformation direction of the spring 41. Optionally, the kettle safety valve further comprises a threshold adjusting assembly 60, the threshold adjusting assembly 60 comprises an adjusting piece 61, an adjusting nut 62 and a second gasket 63, the adjusting piece 61 is inserted into the shell 10 and can slide along the axial direction of the guide rod 43 relative to the shell 10, the adjusting piece 61 acts on the spring 41 through the second gasket 63, which can change the compression amount of the spring 41, and the adjusting nut 62 is threadedly connected with the guide rod 43, which can lock the relative position of the adjusting piece 61 and the guide rod 43.
[0058] Exemplarily, the side wall of the shell 10 opposite to the inlet end 11 of the shell 10 is also provided with light holes, the light holes are provided with a plurality of light holes which are uniformly distributed around the axis of the first threaded hole; the adjusting part 61 comprises a plurality of plug-in parts and a connecting part, the plurality of plug-in parts are in one-to-one correspondence with the plurality of light holes, the plurality of plug-in parts are sleeved on the guide rod 43 through the connecting part, so that the plurality of plug-in parts can move synchronously along the axial direction of the guide rod 43, and the second gasket 63 can be uniformly stressed to keep it in position, and the adjusting nut 62 is located on the side of the connecting part away from the second gasket 63 and is threadedly connected with the guide rod 43. In this way, the user can rotate the adjusting nut 62 to press or release the spring 41, and according to the fact that the elastic force of the spring 41 is proportional to the compression amount, the threshold value of the displacement of the valve core 31 and the valve disc 32 can be changed, thereby adapting to different use scenarios.
[0059] Optionally, the kettle body safety valve further comprises a valve cap 70, the valve cap 70 is detachably connected with the shell 10 and can be covered outside the shell 10 and outside the adjusting nut 62.
[0060] Exemplarily, the adjusting nut 62 is located outside the shell 10 for user operation, in order to prevent the user from accidentally touching the adjusting nut 62 and changing the compression amount of the spring 41, the embodiment provides the valve cap 70, the valve cap 70 is detachably connected with the shell 10, when it is necessary to adjust the compression amount of the spring 41, the valve cap 70 is removed to expose the adjusting nut 62, and generally when in use, the valve cap 70 is sleeved outside the adjusting nut 62 to protect it.
[0061] Optionally, the shell 10 and the kettle body 1 are fixed through a flange structure.
[0062] In this way, the shell 10 and the kettle body 1 are fixed through a plurality of threaded fasteners, which can keep the relative stability of the two and maintain the airtightness between the two.
[0063] Optionally, the shell 10 comprises a first shell 10a and a second shell 10b, the first shell 10a and the second shell 10b are detachably connected, and the second shell 10b is fixed with the kettle body 1.
[0064] In this way, the inside of the shell 10 can be overhauled by disassembling the first shell 10a, without having to disassemble the second shell 10b from the kettle body 1.
[0065] In addition, the above is only the preferred embodiment of the present application and the applied technical principle. The person skilled in the art can understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by the person skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims
1. A safety valve for a kettle, characterized by The utility model relates to a kind of valve and kettle, including: Shell (10), the shell (10) includes mutually communicating import end (11) and export end (12), the import end (11) is fixed with kettle body (1) and with the inside of the kettle body (1) communication; Valve seat (20), the valve seat (20) is installed in the import end (11) and with the inner circumferential wall of the shell (10) circumferentially sealed, the valve seat (20) is opened with drain port (21) and backflow port (22); Valve core (31) and valve flap (32), the valve core (31) can block the drain port (21), the valve flap (32) can block the communication of the import end (11) and the export end (12), the fluid exported by the kettle body (1) can drive the valve core (31) and the valve flap (32) relative to the shell (10) move, so that the drain port (21) and the backflow port (22) are all communicated with the export end (12); Spring (41), the spring (41) makes the valve flap (32) always have the tendency of blocking the import end (11) and the export end (12), and makes the valve flap (32) always have the tendency of blocking the drain port (21); Gas-liquid separator (50), the gas-liquid separator (50) is installed in the export end (12), for carrying out gas-liquid separation to the fluid exported by the kettle body (1), gas can be discharged from the kettle body (1) by the export end (12), and liquid can be returned to the kettle body (1) by the backflow port (22).
2. The safety valve for a kettle according to claim 1, characterized by The gas-liquid separator (50) includes waterproof air-permeable membrane (51), and the waterproof air-permeable membrane (51) only allows the gas to pass through and only the gas can pass through the waterproof air-permeable membrane (51) in one direction.
3. The safety valve for a kettle according to claim 1, wherein The gas-liquid separator (50) further includes a jacket (52), which is a circular ring, and the jacket (52) can be injected with a coolant, and the fluid contacts the jacket (52) and condenses into the liquid.
4. The safety valve for a kettle according to claim 3, characterized by The gas-liquid separator (50) further includes a first valve body (53) and a second valve body (54), the first valve body (53) is used to control the opening and closing state of the input end of the jacket (52), and the second valve body (54) is used to control the opening and closing state of the output end of the jacket (52).
5. The safety valve for a kettle according to claim 1, wherein It further includes a first gasket (42), and the spring (41) acts on the valve flap (32) through the first gasket (42).
6. The safety valve for a kettle according to claim 1, wherein It further includes a guide rod (43), one end of the guide rod (43) is fixed opposite to the shell (10), the other end is slidably inserted into the valve flap (32), and the spring (41) is sleeved outside the guide rod (43).
7. The safety valve for a kettle according to claim 6, wherein The threshold adjusting assembly (60) comprises an adjusting member (61), an adjusting nut (62) and a second gasket (63), the adjusting member (61) is inserted into the shell (10) and can slide along the axial direction of the guide rod (43) relative to the shell (10), the adjusting member (61) acts on the spring (41) through the second gasket (63), the compression amount of the spring (41) can be changed, and the adjusting nut (62) is threadedly connected with the guide rod (43) and can lock the relative position of the adjusting member (61) and the guide rod (43).
8. The safety valve for a kettle according to claim 7, wherein The valve cap (70) is detachably connected with the shell (10) and can be covered outside the adjusting nut (62) outside the shell (10).
9. The safety valve for a kettle according to claim 1, wherein The shell (10) and the kettle body (1) are fixed through a flange structure.
10. The safety valve for a kettle according to any one of claims 1 to 9, characterized in that The shell (10) comprises a first shell (10a) and a second shell (10b), the first shell (10a) and the second shell (10b) are detachably connected, and the second shell (10b) is fixed with the kettle body (1).