Safety pressure relief device of high-pressure reaction kettle

Abstract

The utility model discloses a safety pressure relief device of a high-pressure reaction kettle, which relates to the technical field of reaction kettles and comprises a reaction kettle body, a sealing cover is fixedly mounted on the upper surface of the reaction kettle body, a sealing shell is fixedly connected to the upper surface of the sealing cover, and a second pressure relief component is fixedly connected to an inner cavity of the sealing shell. And first pressure relief assemblies are clamped to the front, back, left and right parts of the inner wall of the lower part of the second pressure relief assembly. According to the safety pressure relief device of the high-pressure reaction kettle, the upper surface of the gas discharging pipe can be opened by rotating the sealing plug, then four limiting shells can drive four gas outlet pipes to move upwards at the same time under the action of a rotating wheel, a threaded rod, a sealing shell, a guide rod and an annular plate, and thus the safety pressure relief effect is achieved. Therefore, a deflation hole formed in the outer wall of the gas outlet pipe can move upwards into the inner cavity of the sealing shell, and gas in the inner cavity of the reaction kettle body enters the inner cavity of the sealing shell through the gas outlet pipe and then is exhausted through the deflation pipe, so that deflation and pressure relief are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reaction kettle, especially a kind of safety pressure relief device of high-pressure reaction kettle. BACKGROUND

[0002] The broad sense of reaction kettle is the container with physical or chemical reaction, the heating, evaporation, cooling and low-speed mixing function of process requirement are realized by the structural design and parameter configuration of container, reaction kettle is widely applied, more in petroleum, chemical industry, rubber, pesticide, dye, pharmaceutical, food, is used to complete the pressure vessel of vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and other process, is one of the indispensable articles for chemical production;Reaction kettle is comprehensive reaction container, from the beginning of feed-reaction-discharge, the reaction steps of pre-set can be completed with higher degree of automation, important parameters such as temperature, pressure, mechanical control (mixing, air blowing, etc.), reactant / product concentration during reaction process are strictly regulated, since reaction kettle when working, some reactants in the interior will release a large amount of gas during processing, thereby leading to the sharp increase of pressure in the interior of reaction kettle, when internal pressure is too large, it can cause explosion of reaction kettle, so it is necessary to relieve pressure when internal pressure of reaction kettle is too large.

[0003] Chinese patent document CN221832271U discloses a kind of reaction kettle safety pressure relief device, including reaction kettle body and sealing cover, the inner wall of the top end of reaction kettle body is threadedly connected with sealing cover, multiple pressure relief pipelines are arranged between the inner wall and outer wall of sealing cover, multiple pressure relief pipelines all penetrate the bottom end of sealing cover, the top end of multiple pressure relief pipelines all penetrates cavity, sealing plate is rotatably installed in cavity, sealing plate is hollow, multiple air outlets are arranged on the bottom side of sealing plate, multiple air outlets and multiple pressure relief pipelines are one-to-one corresponding;The utility model has the effect that when relieving pressure, multiple pressure relief pipelines blocked are slowly unsealed by rotating air outlet pipe and sealing plate, pressure relief process will not cause sealing cover to be hit out, pressure relief operation is simple, the possibility of safety accident is reduced, and the harm to operator is reduced.

[0004] The existing technology has the following problems:

[0005] The safety pressure relief device of high-pressure reaction kettle cannot effectively relieve the pressure of the gas in the reaction kettle during use, and the safety pressure relief device of high-pressure reaction kettle cannot slowly control the speed of gas release during use, which has certain risk. UTILITY MODEL CONTENTS

[0006] The utility model provides a safe pressure relief device of high pressure reation kettle to solve the problem in the above background technique.

[0007] To solve the above technical problems, the utility model adopts the technical scheme of:

[0008] A safe pressure relief device of high pressure reation kettle, including the reaction kettle body, the upper surface of reaction kettle body is fixedly installed with the sealing cover, the upper surface of sealing cover is fixedly connected with the sealing shell, the inner chamber of sealing shell is fixedly connected with pressure relief subassembly no.

[0009] Preferably, the pressure relief subassembly two includes a threaded rod, the outer wall of the threaded rod is threadedly connected with the inner chamber of the sealing shell, and the inner chamber of the threaded rod is fixedly connected with a gas discharge pipe located above the sealing cover.

[0010] Preferably, the pressure relief subassembly one includes a limiting block, the upper surface of the limiting block is fixedly connected with the inner chamber of the sealing shell, the lower surface of the limiting block is fixedly connected with a spring, the lower surface of the spring is fixedly connected with a limiting shell, the inner wall of the limiting shell is movably sleeved with the outer wall of the limiting block and the spring, and the outer wall of the limiting shell is slidably connected with the inner chamber of the sealing shell.

[0011] Preferably, the upper part of the outer wall of the threaded rod is fixedly connected with a runner located on the upper surface of the sealing shell, and the upper part of the inner wall of the threaded rod is threadedly connected with a sealing plug.

[0012] Preferably, the outer wall of the lower part of the threaded rod is rotatably connected with an annular plate, the outer wall of the annular plate is movably sleeved with the inner chamber of the sealing shell, the inner chamber of the annular plate is slidably connected with a guide rod, and the opposite surfaces of the inner wall of the sealing cover and the sealing shell are fixedly connected with the upper and lower sides of the four guide rods.

[0013] Preferably, the lower part of the limiting shell close to the threaded rod is fixedly connected with a limiting plate, and the outer wall of the limiting plate is clamped with the inner wall of the annular plate.

[0014] Preferably, the lower surface of the limiting shell is fixedly connected with a connecting rod, the outer wall of the lower part of the connecting rod is fixedly connected with a sealing ring, the lower surface of the sealing ring is overlapped with a sealing sleeve rod, and the outer wall of the sealing sleeve rod is fixedly connected with the inner chamber of the sealing cover.

[0015] Preferably, the lower surface of the connecting rod is fixedly connected with an air outlet pipe located below the sealing ring, the outer wall of the air outlet pipe is inserted with the inner wall of the sealing sleeve rod, and the outer wall of the air outlet pipe is provided with a gas discharge hole.

[0016] Thanks to the adoption of the above technical solutions, the present application has the following technical progress compared with the prior art:

[0017] 1. The safety pressure relief device of the high-pressure reaction kettle is characterized in that the upper surface of the air release pipe can be opened by rotating the sealing plug, then the four limiting shells can be simultaneously driven to move upward by the action of the rotating wheel, the threaded rod, the sealing shell, the guide rod and the annular plate, so that the air release holes opened on the outer wall of the air outlet pipe can be moved into the inner cavity of the sealing shell, thereby enabling the gas in the inner cavity of the reaction kettle body to enter the inner cavity of the sealing shell through the air outlet pipe and then be discharged through the air release pipe, so that the air release and pressure relief are facilitated, and the annular plate can simultaneously adjust and release the air of the four air outlet pipes by the action of the limiting plate, so that the operation is facilitated.

[0018] 2. The safety pressure relief device of the high-pressure reaction kettle is characterized in that the air release holes opened on the outer wall of the air outlet pipe are of different sizes, so that the air release speed can be slowly adjusted when air release and pressure relief are performed, thereby improving the safety during air release and pressure relief, and the movement of the limiting shell can be limited and guided by the action of the limiting block, so that the connecting rod is pressed by the action of the spring, thereby enabling the lower surface of the sealing ring to be tightly attached to the upper surface of the sealing sleeve rod, so that the sealing property is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the present application;

[0020] Figure 2 It is a sectional view of the present application;

[0021] Figure 3 It is a sectional view of the pressure relief assembly two of the present application;

[0022] Figure 4 It is a sectional view of the pressure relief assembly one of the present application;

[0023] Figure 5 It is a sectional view of the sealing sleeve rod of the present application;

[0024] Figure 6 It is a structural schematic view of the air outlet pipe of the present application.

[0025] In the drawing: 1, reaction kettle body; 2, sealing cover; 3, sealing shell; 4, pressure relief assembly one; 5, pressure relief assembly two; 41, limiting block; 42, spring; 43, limiting shell; 44, limiting plate; 45, connecting rod; 46, sealing ring; 47, sealing sleeve rod; 48, air outlet pipe; 51, threaded rod; 52, rotating wheel; 53, air release pipe; 54, sealing plug; 55, annular plate; 56, guide rod. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0027] As shown in Figure 1 , Figure 2 , a safety pressure relief device of a high-pressure reaction kettle, comprising a reaction kettle body 1, the upper surface of the reaction kettle body 1 is fixedly installed with a sealing cover 2, the upper surface of the sealing cover 2 is fixedly connected with a sealing shell 3, the inner cavity of the sealing shell 3 is fixedly connected with a pressure relief assembly two 5, the front, back, left and right parts of the inner wall of the lower part of the pressure relief assembly two 5 are all clamped with a pressure relief assembly one 4, the outer walls of the upper parts of the four pressure relief assembly ones 4 are respectively fixedly connected with the inner cavity of the sealing shell 3, and the outer walls of the lower parts of the four pressure relief assembly ones 4 are respectively fixedly connected with the inner cavity of the upper part of the sealing cover 2.

[0028] Firstly, the pressure relief assembly two 5 is opened, then under the action of the pressure relief assembly two 5, the four pressure relief assembly ones 4 can release the gas in the inner cavity of the reaction kettle body 1, so as to release the pressure.

[0029] As shown in Figure 3 , the pressure relief assembly two 5 comprises a threaded rod 51, the outer wall of the threaded rod 51 is threadedly connected with the inner cavity of the sealing shell 3, the inner cavity of the threaded rod 51 is fixedly connected with a gas release pipe 53 and the gas release pipe 53 is located above the sealing cover 2, the upper part of the outer wall of the threaded rod 51 is fixedly connected with a rotating wheel 52 and the rotating wheel 52 is located on the upper surface of the sealing shell 3, and the upper part of the inner wall of the threaded rod 51 is threadedly connected with a sealing plug 54.

[0030] By rotating the sealing plug 54, the upper surface of the gas release pipe 53 can be opened, then the threaded rod 51 is moved upward under the action of the sealing shell 3 by rotating the rotating wheel 52, so as to drive the annular plate 55 to move upward under the action of the guide rod 56, and under the action of the annular plate 55, the four limiting shells 43 can simultaneously drive the four gas outlet pipes 48 to move upward, so that the gas release holes opened in the outer wall of the gas outlet pipe 48 can move upward into the inner cavity of the sealing shell 3, so that the gas in the inner cavity of the reaction kettle body 1 enters the inner cavity of the sealing shell 3 through the gas outlet pipe 48, and then is discharged through the gas release pipe 53, thereby facilitating the gas release and pressure relief.

[0031] The outer wall of the lower part of the threaded rod 51 is rotatably connected with the annular plate 55, the outer wall of the annular plate 55 is movably sleeved with the inner cavity of the sealing shell 3, the inner cavities of the front, back, left and right parts of the annular plate 55 are all slidably connected with the guide rod 56, and the upper and lower sides of the four guide rods 56 are respectively fixedly connected with the opposite surfaces of the inner walls of the sealing cover 2 and the sealing shell 3.

[0032] By the action of the guide rod 56, the moving direction of the annular plate 55 can be limited, thereby playing a guiding role.

[0033] As Figure 4 shown in the figure, the pressure relief assembly one 4 includes a limiting block 41, the upper surface of the limiting block 41 is fixedly connected with the inner cavity of the sealing shell 3, the lower surface of the limiting block 41 is fixedly connected with a spring 42, the lower surface of the spring 42 is fixedly connected with a limiting shell 43, the inner wall of the limiting shell 43 is movably sleeved with the outer wall of the limiting block 41 and the spring 42 respectively, and the outer wall of the limiting shell 43 is slidably connected with the inner cavity of the sealing shell 3;

[0034] Through the action of the limiting block 41, the movement of the limiting shell 43 can be limited and guided, so that the connecting rod 45 is pressed under the action of the spring 42, so that the lower surface of the sealing ring 46 can be tightly fitted with the upper surface of the sealing sleeve rod 47, thereby ensuring the sealing property.

[0035] As Figure 5 shown in the figure, the lower part of the limiting shell 43 close to the threaded rod 51 side is fixedly connected with a limiting plate 44, and the outer wall of the limiting plate 44 is clamped with the inner wall of the annular plate 55;

[0036] Through the action of the limiting plate 44, the annular plate 55 can simultaneously adjust and discharge the four air outlet pipes 48, thereby facilitating operation.

[0037] The lower surface of the limiting shell 43 is fixedly connected with a connecting rod 45, the outer wall of the lower part of the connecting rod 45 is fixedly connected with a sealing ring 46, the lower surface of the sealing ring 46 is overlapped with a sealing sleeve rod 47, and the outer wall of the sealing sleeve rod 47 is fixedly connected with the inner cavity of the sealing cover 2;

[0038] Through the action of the sealing ring 46, the connecting rod 45 and the sealing sleeve rod 47 can be sealed, thereby ensuring the sealing property between the reaction kettle body 1 and the sealing cover 2 under the action of the spring 42.

[0039] As Figure 6 shown in the figure, the lower surface of the connecting rod 45 is fixedly connected with an air outlet pipe 48 and the air outlet pipe 48 is located below the sealing ring 46, the outer wall of the air outlet pipe 48 is inserted with the inner wall of the sealing sleeve rod 47, and the outer wall of the air outlet pipe 48 is provided with a discharge hole;

[0040] Since the discharge holes of different sizes are provided on the outer wall of the air outlet pipe 48, the discharge speed can be slowly adjusted when discharging and relieving pressure, thereby improving the safety when discharging and relieving pressure.

[0041] The working principle of the utility model is: firstly, the upper surface of the air release pipe 53 can be opened by rotating the sealing plug 54, then rotating the rotating wheel 52, the threaded rod 51 is moved upward under the action of the sealing shell 3, thereby driving the annular plate 55 to move upward under the action of the guide rod 56, under the action of the annular plate 55, the four limiting shells 43 can simultaneously drive the four air outlet pipes 48 to move upward, thereby the air release holes opened on the outer wall of the air outlet pipe 48 can be moved upward to the inner cavity of the sealing shell 3, because the sizes of the air release holes opened on the outer wall of the air outlet pipe 48 are different, when releasing air pressure, the air release speed can be slowly adjusted, then under the action of the air release pipe 53, the gas in the inner cavity of the sealing shell 3 can be discharged, thereby releasing pressure.

[0042] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above examples, the above examples and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, these changes and improvements all fall into the scope of the utility model claimed to be protected. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A safety relief device for a high-pressure reactor, comprising a reactor body (1), characterized in that: The upper surface of the reaction kettle body (1) is fixedly installed with a sealing cover (2), the upper surface of the sealing cover (2) is fixedly connected with a sealing shell (3), the inner cavity of the sealing shell (3) is fixedly connected with a pressure relief assembly two (5), the front, rear, left and right parts of the lower part inner wall of the pressure relief assembly two (5) are all clamped with a pressure relief assembly one (4), the outer walls of the upper parts of the four pressure relief assembly ones (4) are respectively fixedly connected with the inner cavity of the sealing shell (3), and the outer walls of the lower parts of the four pressure relief assembly ones (4) are respectively fixedly connected with the inner cavity of the upper part of the sealing cover (2). The pressure relief assembly two (5) comprises a threaded rod (51), the outer wall of the threaded rod (51) is screwed with the inner cavity of the sealing shell (3), and the inner cavity of the threaded rod (51) is fixedly connected with a deflation pipe (53) and the deflation pipe (53) is located above the sealing cover (2). The pressure relief assembly one (4) comprises a limiting block (41), the upper surface of the limiting block (41) is fixedly connected with the inner cavity of the sealing shell (3), the lower surface of the limiting block (41) is fixedly connected with a spring (42), the lower surface of the spring (42) is fixedly connected with a limiting shell (43), the inner walls of the limiting shell (43) are movably sleeved with the outer walls of the limiting block (41) and the spring (42), and the outer wall of the limiting shell (43) is slidingly connected with the inner cavity of the sealing shell (3).

2. The safety relief device for a high-pressure reaction vessel according to claim 1, wherein: The upper part of the outer wall of the threaded rod (51) is fixedly connected with a rotating wheel (52) and the rotating wheel (52) is located on the upper surface of the sealing shell (3), and the upper part of the inner wall of the threaded rod (51) is screwed with a sealing plug (54).

3. The safety relief device for a high-pressure reaction vessel according to claim 1, wherein: The outer wall of the lower part of the threaded rod (51) is rotatably connected with an annular plate (55), the outer wall of the annular plate (55) is movably sleeved with the inner cavity of the sealing shell (3), the inner cavities of the front, rear, left and right parts of the annular plate (55) are all slidingly connected with guide rods (56), and the upper and lower sides of the four guide rods (56) are respectively fixedly connected with the opposite surfaces of the inner walls of the sealing cover (2) and the sealing shell (3).

4. The safety relief device for a high-pressure reaction vessel according to claim 1, wherein: The lower part of the side, close to the threaded rod (51), of the limiting shell (43) is fixedly connected with a limiting plate (44), and the outer wall of the limiting plate (44) is clamped with the inner wall of the annular plate (55).

5. The safety relief device for a high pressure reactor according to claim 4, wherein: The lower surface of the limiting shell (43) is fixedly connected with a connecting rod (45), the outer wall of the lower part of the connecting rod (45) is fixedly connected with a sealing ring (46), the lower surface of the sealing ring (46) is overlapped with a sealing sleeve rod (47), the outer wall of the sealing sleeve rod (47) is fixedly connected with the inner cavity of the sealing cover (2).

6. The safety relief device for a high pressure reactor according to claim 5, wherein: The lower surface of the connecting rod (45) is fixedly connected with an air outlet pipe (48) and the air outlet pipe (48) is located below the sealing ring (46), the outer wall of the air outlet pipe (48) is inserted with the inner wall of the sealing sleeve rod (47), and the outer wall of the air outlet pipe (48) is provided with a deflation hole.

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