Clamp device for quick-opening door of pressure vessel and reaction kettle

Abstract

The utility model discloses a pressure vessel quick-opening door clamp device and a reaction kettle.The pressure vessel quick-opening door clamp device comprises a split clamp, the split clamp comprises an upper clamp, a left clamp and a right clamp, the upper ends of the left clamp and the right clamp are hinged to the upper clamp, the lower ends of the left clamp and the right clamp are hinged to a clamp support, and a sliding block is arranged below the clamp support; and the sliding block moves along the linear guide rail under the action of the opening and closing driving mechanism. The split clamp adopts a three-section structure of the upper clamp, the left clamp and the right clamp, the left clamp and the right clamp are driven by the opening and closing driving mechanism arranged below to move to realize opening and closing, and the split clamp is simple to process, low in manufacturing cost, safe and reliable to use, long in service life and convenient to use; the self-tightening sealing gasket is arranged between the kettle cover and the kettle body, so that the sealing effect is good, the assembly is simple, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure vessel field especially relates to pressure vessel quick -opening door clamp device and reaction kettle. BACKGROUND

[0002] At present, the quick -opening kettle for chemical industry, pharmacy, environmental protection, food processing, metallurgy, printing and dyeing etc. in market can be divided into four kinds according to structure: tooth meshing type clamp, two -piece clamp, three -piece clamp, four -piece clamp. Due to the defect of sealing mode, tooth meshing type clamp is prone to leakage, and is suitable for the kettle of low pressure. At the same time, due to the meshing of the relative movement of the tank door tooth flange and the tank body flange to achieve locking effect, the rotation tooth and the sealing ring are prone to gluing phenomenon at high temperature, so that the friction resistance increases when the teeth are rotated, and the door is difficult to open. At the same time, the sealing ring is frequently replaced. The whole tooth meshing type clamp connection structure is difficult to process and has high processing precision. The clamp structure of split type can reduce the requirement of processing precision, and the sealing effect and door opening operation are better than the tooth meshing type clamp structure. The two -piece clamp is horizontally opened and closed, and the structure is bloated, and the space occupied by the clamp opening and closing is large. The four -piece clamp has complex structure, low safety, unstable clamp opening and closing, and is prone to failure. The three -piece clamp, such as the patent CN214063760 U a new type of pressure vessel quick -opening door clamp device, is convenient to process and assemble, has high working efficiency and reliable sealing performance. But due to the action mechanism of the clamp opening and closing on the top, it is only suitable for small quick -opening kettle with light weight clamp. With the increase of the weight of the clamp, the service life of the action mechanism is greatly reduced.

[0003] In addition, the existing pressure vessel such as reaction kettle needs to set sealing ring on the contact surface between kettle cover and kettle body in addition to the application of clamp structure. O -ring and spring energy storage washer are applied to quick -opening clamp structure, and the sealing gap is not easy to control. The O -ring is easy to extrude and fail when the gap is slightly large, resulting in leakage. Y type sealing ring is mainly used for low pressure sealing, and the sealing effect is poor in high pressure environment. UTILITY MODEL CONTENTS

[0004] The utility model provides pressure vessel quick -opening door clamp device and reaction kettle aiming at the deficiency of prior art, and the clamp device can realize the quick opening of pressure vessel and be suitable for large quick -opening kettle with heavy clamp.

[0005] In order to realize the above -mentioned purpose, the technical scheme that the utility model adopts is as follows:

[0006] The pressure vessel quick -opening door clamp device, including split clamp, the split clamp includes upper clamp, left clamp and right clamp, and the upper ends of left clamp and right clamp are hingedly connected with upper clamp, and the lower ends are hingedly connected with clamp support, and the lower side of clamp support is equipped with sliding block, and the sliding block moves along linear guide rail under the action of opening and closing drive mechanism.

[0007] Further, the upper clamp is provided with a guide wheel, the kettle body is fixed with a guide plate, the guide plate is provided with a limiting slot, and the guide wheel falls into the limiting slot.

[0008] The utility model discloses still provide a kind of reaction kettle, including kettle body, kettle cover and the pressure vessel quick opening door clamp device of above.

[0009] Further, the reaction kettle further includes a kettle cover opening mechanism, the kettle cover opening mechanism includes a rotating shaft and a rotating arm, the kettle cover is connected with the rotating arm, the rotating arm is connected with the rotating shaft, and the kettle cover rotating action mechanism drives the rotating arm to rotate relative to the rotating shaft to control the opening and closing of the kettle cover.

[0010] Further, the kettle cover rotating action mechanism is a reduction motor, the reduction motor is connected with the rotating shaft, and the reduction motor drives the rotating shaft to rotate. Alternatively, the kettle cover rotating action mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, and the hydraulic cylinder, the pneumatic cylinder or the electric cylinder drives the rotating arm to rotate around the rotating shaft.

[0011] Further, the kettle body is provided with a sealing groove on the cooperation surface with the kettle cover, the sealing groove is connected with the pre-pressing port, a self-tightening sealing gasket is assembled in the sealing groove, the self-tightening sealing gasket includes a mounting portion and a sealing portion, the mounting portion is inserted into the sealing groove, the mounting portion has a pre-tightening groove opposite to the pre-pressing port, the sealing portion includes a kettle cover sealing surface in contact with the kettle cover and a kettle body sealing surface in contact with the kettle body, in a non-assembled state, the kettle cover sealing surface has a first contact surface and a second contact surface, the included angle between the first contact surface and the second contact surface is 150°-170°, the included angle between the kettle body sealing surface and the mounting portion is 120°-150°, after assembly, the first contact surface and the second contact surface are uniformly in contact with the kettle cover, the included angle between them is 180°, and the kettle body sealing surface is in contact with the inclined surface on the opening side of the sealing groove.

[0012] More preferably, the width of the pre-tightening groove is 0.4-0.6 times the width of the mounting portion, and the depth of the pre-tightening groove is 0.4-0.6 times the width of the mounting portion.

[0013] More preferably, the length of the mounting portion is 1.3-1.7 times the width.

[0014] The utility model discloses have the advantage that (1) split clamp adopts upper clamp, left clamp and right clamp three-petal structure, and the opening and closing of left and right clamps is realized by the opening and closing drive mechanism arranged below, which is simple to process, low in manufacturing cost, safe and reliable in use, long in service life and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 is a structure diagram of the assembly side of the quick-opening clamp device of the pressure vessel and the kettle body.

[0017] Figure 2 is a schematic diagram of the overall structure of the reaction kettle.

[0018] Figure 3 is Figure 2 right side view.

[0019] Figure 4 is a cross-sectional view of the kettle cover and the kettle body.

[0020] Figure 5 is Figure 4 enlarged view of the middle I (without sealing gasket).

[0021] Figure 6 is Figure 4 enlarged view of the middle I (with sealing gasket).

[0022] Figure 7 is a perspective view of the self-tightening sealing gasket.

[0023] Figure 8 is a cross-sectional view of the self-tightening sealing gasket.

[0024] Figure 9 is Figure 8 enlarged view of the middle II.

[0025] In the figure: 1 kettle cover, 2 kettle body, 3 clamp device, 301 upper clamp, 302 left clamp, 303 right clamp, 304 clamp support, 305 sliding block, 306 linear guide rail, 307 opening and closing driving mechanism, 308 guide rail mounting plate, 309 guide wheel, 310 guide plate, 311 limiting groove, 4 kettle cover opening mechanism, 41 rotating arm, 42 rotating shaft, 43 speed reducer motor, 44 hydraulic cylinder, 5 sealing groove, 51 inclined surface, 6 pre-tightening port, 7 self-tightening sealing gasket, 71 mounting part, 72 pre-tightening groove, 73 sealing part, 74 kettle cover sealing surface, 741 first contact surface, 742 second contact surface, 75 kettle body sealing surface. DETAILED DESCRIPTION

[0026] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] In the description of the present application, it should also be noted that, unless explicitly specified and limited, if the terms "arrange", "mount", "connect", "connect" appear, they should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. Embodiment 1

[0028] Referring to Figure 1 and Figure 2 The utility model pressure vessel quick -opening door clamp device 3, including split clamp, split clamp includes upper clamp 301, left clamp 302 and right clamp 303, and the upper end of left clamp 302 and right clamp 303 is respectively hinged with upper clamp 301, and the lower end is respectively hinged with clamp support 304, the lower portion of clamp support 304 is equipped with sliding block 305, under the action of opening and closing drive mechanism 307 sliding block 305 moves along linear guide rail 306, linear guide rail 306 sets up in guide rail mounting plate 308, adjusts the relative position of left clamp 302 and right clamp 303 lower end, to open or close split clamp. Opening and closing drive mechanism 307 can adopt electric screw, cylinder, hydraulic cylinder to realize.

[0029] The upper clamp 301 is provided with a guide wheel 309, and the kettle body 2 is fixed with a guide plate 310, and the guide plate 310 is provided with a limiting groove 311, and the guide wheel 309 falls into the limiting groove 311. The cooperation of the guide wheel 309 and the limiting groove 311 can limit the left and right positions of the upper clamp 301, to prevent the split clamp from swinging left and right. Embodiment 2

[0030] The utility model also provides a reaction kettle, including kettle body 2, kettle cover 1 and above -mentioned pressure vessel quick -opening door clamp device 3.

[0031] The reactor also includes a cover opening mechanism 4, which includes a rotating shaft 42 and a rotating arm 41, the cover 1 is connected with the rotating arm 41, the rotating arm 41 is connected with the rotating shaft 42, the cover 1 rotating action mechanism drives the rotating arm 41 to rotate relative to the rotating shaft 42 to control the opening and closing of the cover 1. The cover 1 rotating action mechanism is a speed reducer motor 43, the speed reducer motor 43 is connected with the rotating shaft 42, the speed reducer motor 43 drives the rotating shaft 42 to rotate; or, the cover 1 rotating action mechanism is a hydraulic cylinder 44, a gas cylinder or an electric cylinder, the hydraulic cylinder, the gas cylinder or the electric cylinder drives the rotating arm 41 to rotate around the rotating shaft 42. The gas cylinder, the electric cylinder can be set at the position shown in the hydraulic cylinder 44. Figure 1

[0032] Cover closing: the cover 1 rotating action mechanism drives the rotating arm 41 to rotate, closes the cover 1, and then the opening and closing drive mechanism 307 drives the lower sliding block 305 to move horizontally to the center along the linear guide rail 306, the lower sliding block 305 drives the left clamp 302 and the right clamp 303 to move from both sides to the center to the closed position, and the split clamp locks the cover 1.

[0033] Cover opening: the opening and closing drive mechanism 307 drives the lower sliding block 305 to move horizontally to both sides along the linear guide rail 306, the lower sliding block 305 drives the left clamp 302 and the right clamp 303 to move from the center to both sides, the split clamp opens the cover 1 rotating action mechanism drives the rotating arm 41 to rotate, and the cover 1 is opened. Example 3

[0034] In order to improve the sealing effect between the cover 1 and the reactor body 2, the reactor body 2 is provided with a sealing groove 5, the depth, width, slope and other parameters of the sealing groove 5 are set according to the parameters of the self-tightening sealing gasket 7, the self-tightening sealing gasket 7 can be tightly assembled with the sealing groove 5, see Figures 7-9 ​The sealing groove 5 is connected with the pre-tightening port 6, and the self-tightening sealing gasket 7 installed in the sealing groove 5 can be filled with gas (nitrogen, carbon dioxide) through the pre-tightening port 6 to press the self-tightening sealing gasket 7. The self-tightening sealing gasket 7 comprises a mounting portion 71 and a sealing portion 73, the mounting portion 71 is inserted into the sealing groove 5, the mounting portion 71 is provided with a pre-tightening groove 72 opposite to the pre-tightening port 6, and the pre-tightening groove 72 is in a trapezoidal section. The sealing portion 73 comprises a kettle cover sealing surface 74 in contact with the kettle cover 1 and a kettle body sealing surface 75 in contact with the kettle body 2, in a non-assembled state, the kettle cover sealing surface 74 is provided with a first contact surface 741 and a second contact surface 742, an included angle γ between the first contact surface 741 and the second contact surface 742 is 150°-170°, an included angle β between the kettle body sealing surface 75 and the mounting portion 71 is 120°-150°, after assembly, the first contact surface 741 and the second contact surface 742 are in uniform contact with the kettle cover 1, the included angle between the first contact surface 741 and the second contact surface 742 is 180°, the kettle body sealing surface 75 is in contact with the inclined surface 51 of the opening side of the sealing groove 5, and an included angle α between the sealing groove inclined surface 51 and a vertical surface is 15-40°. The kettle cover sealing surface 74 and the kettle body sealing surface 75 are respectively attached to the kettle cover 1 and the kettle body 2, and sealing effects are achieved.

[0035] More preferably, the width c of the pre-tightening groove 72 is 0.4-0.6 times the width a of the mounting portion 71, the depth d of the pre-tightening groove 72 is 0.4-0.6 times the width a of the mounting portion 71, and the length b of the mounting portion 71 is 1.3-1.7 times the width a. According to the above setting, the self-tightening sealing gasket 7 is more easily attached to the kettle cover 1 and the kettle body 2 while being stable in assembly, and the sealing effect is good.

[0036] The reaction kettle of the utility model can be opened and closed smoothly at any temperature of 20℃-180℃, is reliable in sealing in a working temperature range of 35Mpa (less than 200℃), and satisfies a fatigue cycle service life of 15000 times.

[0037] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and various modifications and changes can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure vessel quick-opening clamp device comprising a split clamp, characterised in that: The split clamp includes an upper clamp, a left clamp and a right clamp, upper ends of the left and right clamps are hingedly connected with the upper clamp, lower ends of the left and right clamps are hingedly connected with clamp supports, and a sliding block is arranged below the clamp supports and moves along a linear guide under the action of an opening and closing driving mechanism.

2. The pressure vessel quick-opening clamp apparatus of claim 1, wherein: A guide wheel is arranged on the upper clamp, a guide plate is fixed on the kettle body, a limiting groove is arranged on the guide plate, and the guide wheel falls into the limiting groove.

3. The pressure vessel quick-opening clamp apparatus of claim 1, wherein: The opening and closing driving mechanism is an electric screw, a pneumatic cylinder or a hydraulic cylinder.

4. A reaction vessel characterized by: The pressure vessel quick-opening door clamp device is arranged on the kettle body and the kettle cover.

5. The reactor of claim 4, wherein: The kettle cover opening mechanism includes a rotating shaft and a rotating arm, the kettle cover is connected with the rotating arm, the rotating arm is connected with the rotating shaft, and the kettle cover rotating mechanism drives the rotating arm to rotate relative to the rotating shaft to control the opening and closing of the kettle cover.

6. The reactor of claim 5, wherein: The kettle cover rotating mechanism is a speed reducer, the speed reducer is connected with the rotating shaft, and the speed reducer drives the rotating shaft to rotate.

7. The reactor of claim 5, wherein: The kettle cover rotating mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric cylinder, and the hydraulic cylinder, the pneumatic cylinder or the electric cylinder drives the rotating arm to rotate around the rotating shaft.

8. The reactor of claim 4, wherein: The kettle body is provided with a sealing groove on a cooperating surface with the kettle cover, the sealing groove is connected with a pre-pressing port, a self-tightening sealing gasket is arranged in the sealing groove, the self-tightening sealing gasket includes a mounting portion and a sealing portion, the mounting portion is inserted into the sealing groove, the mounting portion has a pre-tightening groove, the pre-tightening groove is opposite to the pre-pressing port, the sealing portion includes a kettle cover sealing surface in contact with the kettle cover and a kettle body sealing surface in contact with the kettle body, in a non-assembled state, the kettle cover sealing surface has a first contact surface and a second contact surface, an included angle between the first contact surface and the second contact surface is 150°-170°, an included angle between the kettle body sealing surface and the mounting portion is 120°-150°, after assembly, the first contact surface and the second contact surface are uniformly in contact with the kettle cover, an included angle between the first contact surface and the second contact surface is 180°, and the kettle body sealing surface is in contact with a slope on a side opening of the sealing groove.

9. The reactor of claim 8, wherein: The width of the pre-tightening groove is 0.4-0.6 times the width of the mounting portion, and the depth of the pre-tightening groove is 0.4-0.6 times the width of the mounting portion.

10. The reactor of claim 8, wherein: The length of the mounting portion is 1.3-1.7 times the width of the mounting portion.

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