High-pressure quick-opening hand hole structure and reaction kettle

Abstract

The invention provides a high-pressure quick-opening hand hole structure and a reaction kettle, the high-pressure quick-opening hand hole structure comprises a flange, a flange cover, a hoop and a transmission assembly, the flange is cylindrical, and one end of the flange is arranged on a kettle body of the reaction kettle; the flange cover covers one end, far away from the kettle body, of the flange; a sealing ring is arranged between the flange cover and the flange; the hoop is arranged at one end, close to the flange cover, of the flange in an openable manner; when the hoop is in an open state, the hoop is separated from the flange and the flange cover, so that the flange can be separated from the flange cover; when the hoop is in the closed state, the hoop is arranged outside the flange cover and the flange in a hooping mode so as to limit separation of the flange and the flange cover. The transmission assembly is in dynamic coupling connection with the hoop so as to drive the hoop to be opened and closed through the transmission assembly; a matching surface between the hoop and the flange is a conical surface; and / or the matching surface between the hoop and the flange cover is a conical surface. The high-pressure quick-opening hand hole structure not only can bear high pressure, but also can realize quick opening.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of pressure vessels, and in particular to a high-pressure quick-opening hand hole structure and a reactor. Background Art

[0002] After a round of use of the reactor, many reactants will adhere to the inner wall. If it is not cleaned, it will affect the next round of use, and then affect the product quality. In addition, the dirt adhering to the inner wall of the reactor will also affect the heat exchange efficiency and prolong the reaction time. On the other hand, the stains adhering to the inner wall of the reactor for a long time will also cause corrosion to the equipment and shorten the service life of the equipment. Therefore, it is necessary to clean the reactor. The existing solution to achieve the cleaning function is mainly achieved by setting a hand hole on the reactor. In addition, during the use of the equipment, it is often necessary to take out the product and sample through the hand hole for analysis and detection, and the reactants and solvents will be added and adjusted through the hand hole to make the chemical reaction more controllable. Therefore, the quick-opening hand hole is easy to open and close, which greatly improves the convenience of operation and production efficiency, and becomes the first choice for realizing cleaning, observation, and other functions.

[0003] The existing hand hole structures that can withstand high pressure generally cannot achieve quick opening; and the hand hole structures that can achieve quick opening can generally only withstand lower pressures; for the hand hole structures that can withstand high pressure and achieve quick opening, most of them are relatively bulky and require additional labor-saving mechanisms to achieve quick opening, and require a larger installation space on the equipment. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a high-pressure quick-opening hand hole structure and a reactor, aiming to design a hand hole structure that can withstand high pressure and achieve quick opening.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a high-pressure quick-opening hand hole structure, comprising:

[0006] A flange, wherein the flange is cylindrical, and one end of the flange is arranged on the body of the reactor;

[0007] A flange cover, the flange cover is arranged at one end of the flange away from the kettle body, and a sealing ring is arranged between the flange cover and the flange;

[0008] A clamp, the clamp can be opened and closed and is arranged at one end of the flange close to the flange cover; when the clamp is in an open state, the clamp is separated from the flange and the flange cover to allow the flange and the flange cover to be separated; when the clamp is in a closed state, the clamp is arranged outside the flange cover and the flange to limit the separation of the flange and the flange cover;

[0009] A transmission assembly, the transmission assembly is connected to the clamp by power coupling, so as to drive the clamp to open and close through the transmission assembly;

[0010] Wherein, the mating surface between the clamp and the flange is a conical surface; and / or, the mating surface between the clamp and the flange cover is a conical surface.

[0011] Preferably, an annular groove is provided on the inner circumferential side surface of the clamp, an annular boss is convexly provided on the outer circumferential side surface of one end of the flange close to the flange cover, and the flange cover includes an annular circumferential side portion opposite to the annular boss in the axial direction of the flange; when the clamp is in the closed state, the annular boss and the annular circumferential side portion extend into the annular groove.

[0012] Preferably, the mating surface between the clamp and the flange includes a first conical surface and a second conical surface, the first conical surface is arranged on the surface of the annular circumferential side portion away from the annular boss, and the second conical surface is arranged on the groove side wall of the annular groove close to the annular circumferential side portion, and the first conical surface and the second conical surface are gradually inclined toward the annular boss in the direction from the groove mouth to the groove bottom of the annular groove.

[0013] Preferably, the mating surface between the clamp and the flange cover includes a third conical surface and a fourth conical surface, the third conical surface is arranged on the surface of the annular boss away from the annular circumferential side portion, and the fourth conical surface is arranged on the groove side wall of the annular groove close to the annular boss, and the third conical surface and the fourth conical surface are gradually inclined toward the annular circumferential side portion in the direction from the groove mouth to the groove bottom of the annular groove.

[0014] Preferably, an annular mounting groove is provided on the surface of the flange or the flange cover close to the sealing ring, and the sealing ring is arranged in the annular mounting groove; wherein the width of the annular mounting groove is gradually reduced in the direction from the bottom of the annular mounting groove to the groove mouth.

[0015] Preferably, a positioning pin is provided between the flange and the flange cover, one of the flange and the flange cover is provided with a mounting pin hole, and the other is provided with a positioning pin hole, the positioning pin is provided at the mounting pin hole, and one end of the positioning pin extends into the positioning pin hole to limit the flange cover and the flange in the radial direction of the flange cover.

[0016] Preferably, a mounting portion is convexly provided on the outer peripheral side of the flange; and the clamp comprises:

[0017] a first ring body, wherein a middle portion of the first ring body is slidably disposed on the mounting portion along a radial direction of the flange cover;

[0018] The second ring body, two second ring bodies are provided, and the two second ring bodies can be rotatably arranged at the two ends of the first ring body along the axial axis of the flange, and the ends of the two second ring bodies away from the first ring body are dynamically coupled to the transmission assembly, so as to drive the two second ring bodies to rotate relative to the first ring body through the transmission assembly, and drive the first ring body to slide through the two second ring bodies.

[0019] Preferably, a guide groove extending along the sliding direction of the first ring body is formed on the mounting portion, and a guide column is protruding from the first ring body, and one end of the guide column extends into the guide groove; when the clamp is in the open state, the first ring body is located in the open position, and the guide column abuts against the groove side wall of the guide groove away from the flange; when the clamp is in the closed state, the first ring body is located in the closed position, and the guide column abuts against the groove side wall of the guide groove close to the flange.

[0020] Preferably, the two second ring bodies are rotatably disposed at two ends of the first ring body through two ear plate assemblies respectively.

[0021] Preferably, a supporting portion is protrudingly provided on the outer peripheral side surface of the flange, and the supporting portion abuts against a side of the second ring body close to the kettle body.

[0022] Preferably, the transmission assembly comprises:

[0023] A screw seat, the screw seat is located on a side of the flange away from the mounting portion;

[0024] A screw rod, the screw rod is rotatably arranged on the screw rod seat, two ends of the screw rod are respectively provided with a first thread and a second thread opposite to each other, and one end of the screw rod is provided with a hand wheel;

[0025] A first nut and a second nut, wherein the first nut and the second nut are both arranged on the screw rod, the first nut and the second nut respectively form threaded cooperation with the first thread and the second thread, and the first nut and the second nut respectively connect the two second ring bodies.

[0026] In order to achieve the above object, the present invention further provides a reaction kettle, comprising:

[0027] Kettle body;

[0028] A high-pressure quick-opening hand hole structure, wherein the high-pressure quick-opening hand hole structure is the above-mentioned high-pressure quick-opening hand hole structure, and an end of the flange of the high-pressure quick-opening hand hole structure away from the flange cover is arranged on the kettle body.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The high-pressure quick-opening hand hole structure of the present invention can realize the smallness, compactness, high-pressure resistance and quick opening of the hand hole structure through the arrangement of the clamp and the sealing ring. Such a high-pressure quick-opening hand hole structure can not only withstand high pressure but also realize quick opening. The mating surface between the clamp and the flange and the flange cover is a conical surface, and the design of the mating surface as a conical surface is conducive to tightening the flange and the flange cover by the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0032] Figure 1 It is a structural schematic diagram of a high-pressure quick-opening hand hole structure in an embodiment of the present invention;

[0033] Figure 2 for Figure 1 Structural schematic diagram of the medium and high pressure quick opening hand hole structure from another perspective;

[0034] Figure 3 for Figure 1 Cross-sectional view of the medium and high pressure quick opening hand hole structure;

[0035] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0036] Description of the accompanying drawings of the present invention:

[0037] High-pressure quick-opening hand hole structure 100, flange 1, annular boss 11, third conical surface 12, locating pin hole 13, mounting portion 14, guide groove 141, support portion 15, flange cover 2, annular circumferential side portion 21, first conical surface 22, annular mounting groove 23, mounting pin hole 24, handle 25, sealing ring 3, clamp 4, annular groove 41, second conical surface 42, fourth conical surface 43, first ring body 44, second ring body 45, guide column 46, ear plate assembly 47, transmission assembly 5, screw seat 51, screw 52, ​​handwheel 53, connecting plate assembly 54, nut 55, identification plate 56, locating pin 6, kettle body 200.

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The present invention provides a high-pressure quick-opening hand hole structure, which can be used in a reaction kettle. Figures 1 to 4 A preferred embodiment of the high-pressure quick-opening hand hole structure provided by the present invention is shown.

[0043] See also Figures 1 to 4 In this embodiment, the high-pressure quick-opening handhole structure 100 includes a flange 1, a flange cover 2, a sealing ring 3, a clamp 4 and a transmission assembly 5. The flange 1 is arranged in a cylindrical shape, and one end of the flange 1 is arranged on the kettle body 200 of the reactor; the flange cover 2 is arranged at the end of the flange 1 away from the kettle body 200, and a sealing ring 3 is arranged between the flange cover 2 and the flange 1; the clamp 4 is arranged at the end of the flange 1 close to the flange cover 2 in an openable and closable manner; when the clamp 4 is in an open state, the clamp 4 is separated from the flange 1 and the flange cover 2 so that the flange 1 and the flange cover 2 can be separated; when the clamp 4 is in a closed state, the clamp 4 is arranged outside the flange cover 2 and the flange 1 to limit the separation of the flange 1 and the flange cover 2; the transmission assembly 5 is dynamically coupled to the clamp 4 to drive the clamp 4 to open and close through the transmission assembly 5; wherein, the mating surface between the clamp 4 and the flange 1 is a conical surface; and / or, the mating surface between the clamp 4 and the flange cover 2 is a conical surface.

[0044] Specifically, the high-pressure quick-opening hand hole structure 100 is used to be installed on the kettle body 200 of the reactor, thereby forming a hand hole structure of the reactor. The kettle body 200 is provided with an opening, one end of the flange 1 is provided at the opening of the kettle body 200, and the flange 1 is connected to the interior of the kettle body 200 through the opening. The flange 1 is usually provided in a cylindrical shape, for example, the flange 1 can be a cylindrical forging, and the axial direction of the flange 1 is defined as the up-down direction below, and the end of the flange 1 close to the kettle body 200 is the lower end of the flange 1.

[0045] The flange cover 2 is usually provided in a round cake shape, for example, the flange cover 2 can be a round cake-shaped forging. The flange cover 2 is provided on the upper end of the flange 1, and the upper surface of the flange 1 and the lower surface of the flange cover 2 are both used as sealing surfaces and need to be finely processed. A sealing ring 3 is sandwiched between the upper surface of the flange 1 and the lower surface of the flange cover 2, wherein the sealing ring 3 can be an O-ring or the like.

[0046] A clamp 4 that can be opened and closed is provided at the upper end of the flange 1 and between the flange 1 and the flange cover 2, and the clamp 4 can be driven to open and close through the transmission component 5. When the pressure in the kettle of the kettle body 200 rises, the flange cover 2 tends to be separated from the flange 1. The constraint of the clamp 4 in the closed state plays a role of limiting the flange cover 2, and the sealing ring 3 produces a large elastic deformation under the action of the pressure in the kettle, and a large contact pressure is generated on the sealing contact surface to ensure the seal. When the pressure in the kettle of the kettle body 200 is completely relieved, the clamp 4 in the closed state is driven to open through the transmission component 5. At this time, the clamp 4 in the open state is separated from the flange cover 2, so that the flange cover 2 is completely free from the constraint of the clamp 4, and the flange cover 2 can be easily removed.

[0047] The mating surface between at least one of the flange 1 and the flange cover 2 and the clamp 4 is a conical surface, and the following will take the case where the mating surface between the flange 1 and the clamp 4, and the mating surface between the flange cover 2 and the clamp 4 are both conical surfaces as an example for description. The design of the mating surface being a conical surface is conducive to tightening the flange 1 and the flange cover 2 by the clamp 4.

[0048] The high-pressure quick-opening hand hole structure 100 can realize quick opening of the hand hole under high-pressure working conditions. The high-pressure quick-opening hand hole structure 100 can be widely used in chemical, lithium battery, pharmaceutical and other industries.

[0049] The high-pressure quick-opening hand hole structure 100 of the present invention can realize the smallness, compactness, high-pressure resistance and quick opening of the hand hole structure through the arrangement of the clamp 4 and the sealing ring 3. In this way, the high-pressure quick-opening hand hole structure 100 can not only withstand high pressure, but also achieve quick opening, and the mating surface between the clamp 4 and the flange 1 and the flange cover 2 is a conical surface, and the design of the mating surface as a conical surface is conducive to tightening the flange 1 and the flange cover 2 through the clamp 4.

[0050] Optionally, see Figures 1 to 4In this embodiment, a handle 25 is provided on the surface of the flange cover 2 away from the flange 1. The handle 25 is provided on the upper surface of the flange cover 2, and the flange cover 2 can be easily removed by the handle 25, wherein the handle 25 can be formed by bending round steel, and the handle 25 and the flange cover 2 can be fixed by welding.

[0051] Optionally, see Figures 1 to 4 In this embodiment, an annular groove 41 is provided on the inner circumferential side surface of the clamp 4, an annular boss 11 is convexly provided on the outer circumferential side surface of the end of the flange 1 close to the flange cover 2, and the flange cover 2 includes an annular circumferential side portion 21 opposite to the annular boss 11 in the axial direction of the flange 1; when the clamp 4 is in a closed state, the annular boss 11 and the annular circumferential side portion 21 extend into the annular groove 41.

[0052] Specifically, an annular boss 11 is provided at the connection between the outer peripheral side surface and the upper surface of the flange 1, and the annular peripheral side portion 21 is the upper and lower opposite portion of the flange cover 2 and the annular boss 11, so that when the flange cover 2 is covered on the flange 1, the upper surface of the annular boss 11 fits with the lower surface of the annular peripheral side portion 21. An annular groove 41 is provided on the inner peripheral side surface of the clamp 4, and the notch of the annular groove 41 faces the annular boss 11 and the annular peripheral side portion 21, so that when the clamp 4 is in a closed state, at least part of the annular boss 11 and the annular peripheral side portion 21 extends into the annular groove 41, so that the flange 1 and the flange cover 2 can be limited from being separated through the cooperation of the annular boss 11, the annular peripheral side portion 21 and the annular groove 41, so that the flange cover 2 cannot be removed from the flange 1. Among them, the clamp 4 can be a grooved annular forging structure with a hollow interior.

[0053] The mating surface between the clamp 4 and the flange cover 2 is a conical surface. Figures 1 to 4 In this embodiment, the mating surface between the clamp 4 and the flange 1 includes a first conical surface 22 and a second conical surface 42. The first conical surface 22 is arranged on the surface of the annular circumferential side portion 21 away from the annular boss 11, and the second conical surface 42 is arranged on the groove side wall of the annular groove 41 close to the annular circumferential side portion 21. The first conical surface 22 and the second conical surface 42 are gradually inclined toward the annular boss 11 in the direction from the groove mouth to the groove bottom of the annular groove 41.

[0054] Specifically, the upper surface of the annular circumferential side portion 21 is gradually inclined downward in the direction away from the central axis of the flange 1, so that the upper surface of the annular circumferential side portion 21 forms a first conical surface 22. The inner surface of the upper groove side wall of the annular groove 41 is gradually inclined downward in the direction away from the central axis of the flange 1, so that the inner surface of the upper groove side wall of the annular groove 41 forms a second conical surface 42. Through the cooperation of the first conical surface 22 and the second conical surface 42, it can not only play a guiding role in the process of the annular circumferential side portion 21 entering the annular groove 41, but also facilitate the upper groove side wall of the annular groove 41 and the annular circumferential side portion 21 to form abutment and limit cooperation in the upper and lower directions. Among them, the first conical surface 22 and the second conical surface 42 are matching surfaces and need to be finely processed.

[0055] The mating surface between the clamp 4 and the flange 1 is a conical surface. Figures 1 to 4 In this embodiment, the mating surface between the clamp 4 and the flange cover 2 includes a third conical surface 12 and a fourth conical surface 43. The third conical surface 12 is arranged on the surface of the annular boss 11 away from the annular circumferential side portion 21, and the fourth conical surface 43 is arranged on the groove side wall of the annular groove 41 close to the annular boss 11. The third conical surface 12 and the fourth conical surface 43 are gradually inclined toward the annular circumferential side portion 21 in the direction from the groove mouth to the groove bottom of the annular groove 41.

[0056] Specifically, the lower surface of the annular boss 11 is gradually inclined upward in the direction away from the central axis of the flange 1, so that the lower surface of the annular boss 11 forms a third conical surface 12. The inner surface of the lower groove side wall of the annular groove 41 is gradually inclined upward in the direction away from the central axis of the flange 1, so that the inner surface of the lower groove side wall of the annular groove 41 forms a fourth conical surface 43. Through the cooperation of the third conical surface 12 and the fourth conical surface 43, it can not only play a guiding role in the process of the annular boss 11 entering the annular groove 41, but also facilitate the lower groove side wall of the annular groove 41 and the annular boss 11 to form abutment and limit cooperation in the upper and lower directions. Among them, the third conical surface 12 and the fourth conical surface 43 are mating surfaces and need to be finely processed.

[0057] The sealing ring 3 is arranged between the flange 1 and the flange cover 2. Figures 1 to 4 In this embodiment, an annular mounting groove 23 is provided on the surface of the flange 1 or the flange cover 2 close to the sealing ring 3, and the sealing ring 3 is arranged at the annular mounting groove 23; wherein, the groove width of the annular mounting groove 23 is gradually reduced in the direction from the groove bottom to the groove mouth of the annular mounting groove 23.

[0058] Specifically, the annular mounting groove 23 can be arranged on the lower surface of the flange cover 2 corresponding to the sealing ring 3; the annular mounting groove 23 can also be arranged on the upper surface of the flange 1 corresponding to the sealing ring 3. The following will take the annular mounting groove 23 arranged on the lower surface of the flange cover 2 as an example for introduction.

[0059] An annular mounting groove 23 with a notch facing downward is provided on the lower surface of the flange cover 2. The sealing ring 3 is clamped in the annular mounting groove 23. The lower end of the sealing ring 3 extends from the notch to the outside of the annular mounting groove 23. The portion of the sealing ring 3 outside the annular mounting groove 23 is used to abut against the upper surface of the flange 1. The annular mounting groove 23 is arranged in a circular ring shape, and the groove width of the annular mounting groove 23 is gradually reduced from top to bottom. For example, the cross section of the annular mounting groove 23 is arranged in a trapezoidal shape such as an isosceles trapezoid or a right-angled trapezoid, so that the notch of the annular mounting groove 23 is narrower, so as to limit the sealing ring 3 from being separated from the annular mounting groove 23, thereby preventing the sealing ring 3 from falling off the flange cover 2 when the hand hole is repeatedly opened and closed.

[0060] Optionally, see Figures 1 to 4 In this embodiment, a positioning pin 6 is provided between the flange 1 and the flange cover 2. One of the flange 1 and the flange cover 2 is provided with a mounting pin hole 24, and the other is provided with a positioning pin hole 13. The positioning pin 6 is provided at the mounting pin hole 24, and one end of the positioning pin 6 extends into the positioning pin hole 13 to limit the flange cover 2 and the flange 1 in the radial direction of the flange cover 2.

[0061] Specifically, the mounting pin hole 24 can be arranged on the lower surface of the flange cover 2, and the positioning pin hole 13 corresponding to the mounting pin hole 24 is arranged on the upper surface of the flange 1; the mounting pin hole 24 can also be arranged on the upper surface of the flange 1, and the positioning pin hole 13 corresponding to the mounting pin hole 24 is arranged on the lower surface of the flange cover 2. The following will take the example of the mounting pin hole 24 being arranged on the lower surface of the flange cover 2 and the positioning pin hole 13 being arranged on the upper surface of the flange 1 as an example.

[0062] The positioning pin 6 can be located on the inner side or the outer side of the sealing ring 3, and the positioning pin 6 is extended in the up-down direction. The upper end of the positioning pin 6 can be fixed in the mounting pin hole 24 by riveting, threaded connection or welding, so as to fix the positioning pin 6 on the flange cover 2. When the flange cover 2 is covered on the flange 1, the lower end of the positioning pin 6 extends into the positioning pin hole 13, so that the flange 1 and the flange cover 2 are limited in the horizontal direction through the cooperation of the positioning pin 6 and the positioning pin hole 13, so as to ensure that when the hand hole is repeatedly opened and closed, the flange cover 2 will not be displaced with the clamp 4.

[0063] The flange 1 and the flange cover 2 are in plane contact, and the relative positions of the two are fixed by the positioning pins 6, and then the sealing ring 3 is pre-tightened between the flange 1 and the flange cover 2 by adjusting the position of the clamp 4. A plurality of positioning pins 6 can be arranged at intervals along the circumference of the flange cover 2.

[0064] Optionally, see Figures 1 to 4In this embodiment, a mounting portion 14 is convexly provided on the outer peripheral side surface of the flange 1; the clamp 4 includes a first ring body 44 and a second ring body 45, and the middle portion of the first ring body 44 can be slidably arranged on the mounting portion 14 along the radial direction of the flange cover 2; two second ring bodies 45 are provided, and the two second ring bodies 45 can be rotatably arranged at the two ends of the first ring body 44 along the axial axis of the flange 1, and the ends of the two second ring bodies 45 away from the first ring body 44 are both dynamically coupled to the transmission assembly 5, so as to drive the two second ring bodies 45 to rotate relative to the first ring body 44 through the transmission assembly 5, and drive the first ring body 44 to slide through the two second ring bodies 45.

[0065] Specifically, the clamp 4 can be divided into three petals, thereby forming a circular arc-shaped first ring body 44 and two second ring bodies 45. The mounting portion 14 is located on one side of the flange 1 in the sliding direction of the first ring body 44. The sliding direction of the first ring body 44 is defined as left and right below, and the mounting portion 14 is located on the left side of the flange 1. The two second ring bodies 45 are rotatably connected to the two ends of the first ring body 44 respectively, and the ends of the two second ring bodies 45 away from the first ring body 44 are both dynamically coupled to the transmission assembly 5, so that the two second ring bodies 45 are driven to rotate synchronously relative to the first ring body 44 through the transmission assembly 5, and during the rotation of the two second ring bodies 45, the two second ring bodies 45 can drive the first ring body 44 to slide left and right.

[0066] For further information, see Figures 1 to 4 In this embodiment, a guide groove 141 extending along the sliding direction of the first ring body 44 is formed on the mounting portion 14, and a guide column 46 is protruding from the first ring body 44, and one end of the guide column 46 extends into the guide groove 141; when the clamp 4 is in an open state, the first ring body 44 is located in an open position, and the guide column 46 abuts against the groove side wall of the guide groove 141 away from the flange 1; when the clamp 4 is in a closed state, the first ring body 44 is located in a closed position, and the guide column 46 abuts against the groove side wall of the guide groove 141 close to the flange 1.

[0067] Specifically, a guide groove 141 extending in the left-right direction is provided on the upper surface of the mounting portion 14, and a guide column 46 extending in the up-down direction is convexly provided on the lower surface of the first ring body 44, and the lower end of the guide column 46 extends into the guide groove 141 and can slide left and right along the guide groove 141. When the clamp 4 is in the open state, the first ring body 44 is in the open position, and the lower end of the guide column 46 abuts against the left groove side wall of the guide groove 141, so that the first ring body 44 sliding to the open position is positioned by the abutment and cooperation between the guide column 46 and the left groove side wall of the guide groove 141. When the clamp 4 is in the closed state, the first ring body 44 is in the closed position, and the lower end of the guide column 46 abuts against the right groove side wall of the guide groove 141, so that the first ring body 44 sliding to the closed position is positioned by the abutment and cooperation between the guide column 46 and the right groove side wall of the guide groove 141. The mounting portion 14 may be a guide plate, which is folded and has a guide groove 141 in the middle. The guide plate and the flange 1 may be fixed by welding. The guide column 46 may be a guide round steel, which may be fixed by welding to the first ring body 44.

[0068] Optionally, see Figures 1 to 4 In this embodiment, the two second ring bodies 45 are rotatably disposed at the two ends of the first ring body 44 through two ear plate assemblies 47. The ear plate assembly 47 includes two ear plates and a center pin. The two ear plates are respectively welded to the first ring body 44 and the second ring body 45, and then connected and fixed through the center pin, and can rotate freely.

[0069] Optionally, see Figures 1 to 4 In this embodiment, a support portion 15 is protrudingly provided on the outer peripheral side surface of the flange 1 , and the support portion 15 abuts against a side of the second ring body 45 close to the kettle body 200 .

[0070] Specifically, two support portions 15 are provided corresponding to the two second ring bodies 45, and each support portion 15 abuts against the lower side of a corresponding second ring body 45, so that the support portion 15 can support the clamp 4. The support portion 15 can be a support plate, and the support plate and the flange 1 can be welded and fixed, and the upper surface of the support plate contacts the lower surface of the clamp 4.

[0071] For further information, see Figures 1 to 4 In this embodiment, a limiting portion is provided on the support portion 15 , and when the clamp 4 is in an open state, the limiting portion abuts against a side of the second ring body 45 away from the flange cover 2 .

[0072] Optionally, see Figures 1 to 4In this embodiment, the transmission assembly 5 includes a screw seat 51, a screw 52, ​​a first nut and a second nut. The screw seat 51 is located on the side of the flange 1 away from the mounting portion 14; the screw 52 is rotatably arranged on the screw seat 51, and the two ends of the screw 52 are respectively provided with opposite first and second threads; the first nut and the second nut are both arranged on the screw 52, ​​and the first nut and the second nut form threaded cooperation with the first thread and the second thread respectively, and the first nut and the second nut are respectively connected to the two second ring bodies 45.

[0073] Specifically, the screw seat 51 is located on the right side of the flange 1, and the screw 52 is arranged to extend in the front-to-back direction. The screw 52 can be arranged on the screw seat 51 in an axially rotatable manner in the front-to-back and upward directions. The front end and rear end of the screw 52 are respectively provided with a first thread and a second thread, and the first thread and the second thread are respectively a left-hand thread and a right-hand thread. Correspondingly, the first nut and the second nut are respectively a left-hand nut and a right-hand nut, and the first thread and the first nut, as well as the second thread and the second nut, all form a thread pair. The two second ring bodies 45 are respectively connected to the screw 52 through two connecting plate assemblies 54, and the two connecting plate assemblies 54 both include connecting plates welded and fixed to the second ring bodies 45, and the first nut and the second nut are respectively arranged on the connecting plates of the two connecting plate assemblies 54. In this way, through the special design of the transmission assembly 5 and the support part 15, manual quick opening of the hand hole can be achieved.

[0074] Optionally, see Figures 1 to 4 In this embodiment, a hand wheel 53 is provided at one end of the screw rod 52.

[0075] Specifically, a hand wheel 53 is provided at the front end or the rear end of the screw rod 52, so that the operator can rotate the screw rod 52 through the hand wheel 53. The hand wheel 53 and the screw rod 52 can be connected by a key, and a nut 55 is installed on the screw rod 52, and the nut 55 is connected to the end of the screw rod 52 by a thread to reinforce the position of the hand wheel 53.

[0076] Optionally, see Figures 1 to 4 In this embodiment, an identification plate 56 is provided on the screw seat 51. The identification plate 56 may be a rectangular thin plate, and the switch direction may be etched on the upper surface of the identification plate 56.

[0077] When the pressure inside the kettle body 200 rises, the flange cover 2 tends to separate from the flange 1. The flange cover 2 is limited by the clamp 4, and the sealing ring 3 produces a large elastic deformation under the action of the pressure inside the kettle, generating a large contact pressure on the sealing contact surface to ensure the seal.

[0078] When the pressure relief in the kettle is completed and the hand hole needs to be opened, the hand wheel 53 is manually operated and turned toward the "open" side marked by the identification plate 56. The hand wheel 53 drives the screw rod 52 to rotate, and the screw rod 52 drives the clamp 4 to gradually open outward. In the process of opening the clamp 4, the positioning pin 6 limits the displacement of the flange cover 2 so that it will not move with the clamp 4. The support part 15 supports the clamp 4, and the cooperation between the mounting part 14 and the guide column 46 has a radial constraint on the displacement of the clamp 4. When the guide column 46 moves to the end of the guide groove 141 of the mounting part 14, the displacement of the clamp 4 is limited, and the hand wheel 53 can be stopped. At this time, the outer ring of the flange cover 2 (i.e., the annular circumferential side portion 21) has completely broken away from the constraint of the inner ring groove of the clamp 4 (i.e., the annular groove 41), and the flange cover 2 can be easily removed by the handle 25.

[0079] When the observation, cleaning, and maintenance operations are completed, if the hand hole needs to be closed, the positioning pin 6 on the lower surface of the flange cover 2 is aligned with the positioning pin hole 13 on the upper surface of the flange 1 through the handle 25. At this time, the hand wheel 53 is manually operated and rotated to the side of "close" marked by the identification plate 56. The hand wheel 53 drives the screw rod 52 to rotate, and the screw rod 52 drives the clamp 4 to gradually close inward. In the process of closing the clamp 4, the positioning pin 6 limits the displacement of the flange cover 2 so that it will not move with the clamp 4. The support part 15 supports the clamp 4, and the cooperation of the mounting part 14 and the guide column 46 has a radial constraint on the displacement of the clamp 4. When the annular circumferential side part 21 of the flange cover 2 and the annular boss 11 of the flange 1 are tightly matched with the inner ring groove of the clamp 4 and fully constrained, stop rotating the hand wheel 53, and the hand hole is closed.

[0080] The present invention further provides a reaction kettle, which includes a high-pressure quick-opening hand hole structure. Since the high-pressure quick-opening hand hole structure adopts the technical solution of the above embodiment, it has the beneficial effects brought by the technical solution of the above embodiment.

[0081] Specifically, the reactor comprises a high-pressure quick-opening hand hole structure 100 and a reactor body 200, wherein one end of the flange 1 of the high-pressure quick-opening hand hole structure 100 away from the flange cover 2 is arranged on the reactor body 200. The reactor may be a high-pressure reactor, and the high-pressure quick-opening hand hole structure 100 can solve the problem of setting a quick-opening hand hole for the high-pressure reactor, increase the convenience of quick opening of the hand hole, and improve production efficiency.

[0082] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A high-pressure quick-opening hand hole structure, characterized in that: include: A flange, wherein the flange is cylindrical, and one end of the flange is arranged on the body of the reactor; A flange cover, the flange cover is arranged at one end of the flange away from the kettle body, and a sealing ring is arranged between the flange cover and the flange; A clamp, the clamp can be opened and closed and is arranged at one end of the flange close to the flange cover; when the clamp is in an open state, the clamp is separated from the flange and the flange cover to allow the flange and the flange cover to be separated; when the clamp is in a closed state, the clamp is arranged outside the flange cover and the flange to limit the separation of the flange and the flange cover; A transmission assembly, the transmission assembly is connected to the clamp by power coupling, so as to drive the clamp to open and close through the transmission assembly; Wherein, the mating surface between the clamp and the flange is a conical surface; and / or, the mating surface between the clamp and the flange cover is a conical surface.

2. The high-pressure quick-opening hand hole structure according to claim 1, characterized in that: An annular groove is provided on the inner circumferential side surface of the clamp, an annular boss is convexly provided on the outer circumferential side surface of one end of the flange close to the flange cover, and the flange cover includes an annular circumferential side portion opposite to the annular boss in the axial direction of the flange; when the clamp is in the closed state, the annular boss and the annular circumferential side portion extend into the annular groove.

3. The high-pressure quick-opening hand hole structure according to claim 2, characterized in that: The mating surface between the clamp and the flange includes a first conical surface and a second conical surface, wherein the first conical surface is arranged on the surface of the annular circumferential side portion away from the annular boss, and the second conical surface is arranged on the groove side wall of the annular groove close to the annular circumferential side portion, and the first conical surface and the second conical surface are gradually inclined toward the annular boss in the direction from the notch of the annular groove to the groove bottom; and / or, The mating surface between the clamp and the flange cover includes a third conical surface and a fourth conical surface, the third conical surface is arranged on the surface of the annular boss away from the annular circumferential side portion, and the fourth conical surface is arranged on the groove side wall of the annular groove close to the annular boss, and the third conical surface and the fourth conical surface are gradually inclined toward the annular circumferential side portion in the direction from the groove mouth to the groove bottom of the annular groove.

4. The high-pressure quick-opening hand hole structure according to claim 1, characterized in that: An annular mounting groove is provided on the surface of the flange or the flange cover close to the sealing ring, and the sealing ring is arranged in the annular mounting groove; wherein the width of the annular mounting groove is gradually reduced in the direction from the bottom of the annular mounting groove to the groove mouth.

5. The high-pressure quick-opening hand hole structure according to claim 1, characterized in that: A locating pin is arranged between the flange and the flange cover, one of the flange and the flange cover is provided with a mounting pin hole, and the other is provided with a locating pin hole, the locating pin is arranged at the mounting pin hole, and one end of the locating pin extends into the locating pin hole to limit the flange cover and the flange in the radial direction of the flange cover.

6. The high-pressure quick-opening hand hole structure according to claim 1, characterized in that: The outer peripheral side of the flange is provided with a mounting portion; the clamp comprises: a first ring body, wherein a middle portion of the first ring body is slidably disposed on the mounting portion along a radial direction of the flange cover; The second ring body, two second ring bodies are provided, and the two second ring bodies can be rotatably arranged at the two ends of the first ring body along the axial axis of the flange, and the ends of the two second ring bodies away from the first ring body are dynamically coupled to the transmission assembly, so as to drive the two second ring bodies to rotate relative to the first ring body through the transmission assembly, and drive the first ring body to slide through the two second ring bodies.

7. The high-pressure quick-opening hand hole structure according to claim 6, characterized in that: The mounting portion is provided with a guide groove extending along the sliding direction of the first ring body, and the first ring body is protrudingly provided with a guide column, one end of which extends into the guide groove; when the clamp is in the open state, the first ring body is located in the open position, and the guide column abuts against the groove side wall of the guide groove away from the flange; when the clamp is in the closed state, the first ring body is located in the closed position, and the guide column abuts against the groove side wall of the guide groove close to the flange.

8. The high-pressure quick-opening hand hole structure according to claim 6, characterized in that: The two second ring bodies are rotatably arranged at two ends of the first ring body through two ear plate assemblies respectively; and / or, A supporting portion is convexly provided on the outer peripheral side surface of the flange, and the supporting portion abuts against a side of the second ring body close to the kettle body.

9. The high-pressure quick-opening hand hole structure according to claim 6, characterized in that: The transmission assembly comprises: A screw seat, the screw seat is located on a side of the flange away from the mounting portion; A screw rod, the screw rod is rotatably arranged on the screw rod seat, two ends of the screw rod are respectively provided with a first thread and a second thread opposite to each other, and one end of the screw rod is provided with a hand wheel; A first nut and a second nut, wherein the first nut and the second nut are both arranged on the screw rod, the first nut and the second nut respectively form threaded cooperation with the first thread and the second thread, and the first nut and the second nut respectively connect the two second ring bodies.

10. A reaction kettle, characterized in that: include: Kettle body; A high-pressure quick-opening hand hole structure, wherein the high-pressure quick-opening hand hole structure is the high-pressure quick-opening hand hole structure as described in any one of claims 1 to 9, and an end of the flange of the high-pressure quick-opening hand hole structure away from the flange cover is arranged on the kettle body.

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