Blind plate dismounting auxiliary device

Abstract

The utility model relates to the field of DCC device maintenance, in particular to a blind plate disassembly auxiliary device which comprises at least two jacking and extending mechanisms, a hydraulic cylinder, a hydraulic cylinder and a hydraulic cylinder, and the jacking and extending mechanisms are configured to be used for opening flanges on the two sides of a blind plate; the at least one elastic rope is configured to be used for connecting the plurality of top extension mechanisms; the jacking and extending mechanism comprises a bolt unit which is configured to be screwed so as to apply pushing force to the two ends; by means of the structural design, the size of the jacking and extending mechanism can be reduced, operation between the two flanges is more convenient, meanwhile, use is convenient, and the assembling and disassembling efficiency of the blind plate can be improved.

Description

Technical Field

[0001] The present application generally relates to the field of DCC device maintenance, and in particular to a blind plate removal auxiliary device. Background Art

[0002] A DCC unit refers to a catalytic cracking unit, which is used to catalyze the cracking of heavy oil products (such as residual oil, wax oil, etc.) produced by a constant pressure reduction unit under the action of high temperature and catalyst. This reaction will convert these heavy oils into cracked oil and gas. Subsequently, through distillation, absorption, desorption and other processes, the cracked oil and gas will be separated into products such as dry gas, liquefied gas, stabilized gasoline, diesel, recycled oil and oil slurry. These products can be further processed and utilized. The pipes on both sides of the blind plate of the DCC unit are often used to store different liquids.

[0003] When replacing the blind plate of the DCC device, since the liquid stored in the pipelines on both sides is very pungent, the operator needs to complete the replacement in the shortest possible time. However, since the blind plate is fixed by flanges on both sides, the flanges on both sides need to be separated when removing the blind plate so that the blind plate can be taken out. At present, hydraulic devices are used for jacking in most cases. However, due to the large size of the hydraulic device and the small flange gap, the operating space left for the operator is narrow, and the hydraulic device is not easy to fix, resulting in low efficiency in removing the blind plate.

[0004] Therefore, an auxiliary device capable of improving the efficiency of blind plate replacement is needed. Utility Model Content

[0005] In order to solve the problem that the current hydraulic jacking device is large in size and complex in structure, and it is inconvenient to perform jacking operations between two flanges, the present application provides a blind plate disassembly auxiliary device, which achieves the purpose of miniaturizing the jacking mechanism and is more convenient for construction.

[0006] According to one aspect of the present application, a blind plate disassembly auxiliary device is provided, the device comprising at least two lifting mechanisms configured to prop open flanges on both sides of the blind plate; and

[0007] at least one elastic cord configured to connect a plurality of said top extension mechanisms;

[0008] The extension mechanism includes:

[0009] a bolt unit configured to be self-twisted so as to apply thrust to both ends; and

[0010] The connecting unit has one end connected to the bolt unit and the other end abutting against the flange surface.

[0011] In some embodiments, the bolt unit comprises:

[0012] Two screws, configured such that the two screws are on the same straight line and the spiral directions of the two screws are opposite; and

[0013] A nut, arranged between the two screws, with both ends meshing with the two screws.

[0014] In some embodiments, the connection unit includes:

[0015] At least one quick-release component, connected to the screw; and

[0016] At least one magnetic attraction component, connected to the quick-release component, with the other end for magnetically connecting to the flange.

[0017] In some embodiments, the magnetic attraction component includes:

[0018] A connection block, connected to the quick-release component, with an installation groove provided on the other side; and

[0019] A magnet, arranged in the installation groove.

[0020] In some embodiments, the quick-release component includes:

[0021] A sleeve, arranged between the magnetic attraction component and the screw;

[0022] A limit block, arranged on the circumferential outer wall of the screw near one end of the sleeve;

[0023] A sliding groove, arranged on the inner wall of the sleeve near one end of the screw, and the limit block slides in the sliding groove;

[0024] A V-shaped stop bar, with one end engaging with the inner wall of the sleeve and the other end abutting against the end wall of the screw, configured to limit the sliding of the screw in the sleeve after engaging with the inner wall of the sleeve, and the screw can slide in the sleeve after disengaging from the inner wall of the sleeve.

[0025] In some embodiments, two holes are provided on the circumferential outer wall of the sleeve, configured to respectively engage with both ends of the V-shaped stop bar;

[0026] The V-shaped stop bar is configured such that both ends can approach each other after one end disengages from the hole;

[0027] At least one clamping groove is provided at one end of the V-shaped stop bar, and the clamping groove is configured such that after one end of the V-shaped stop bar disengages from the hole towards the inner wall of the sleeve, the inner wall of the hole engages with the clamping groove.

[0028] The embodiments of the present application have the following advantages. By screwing the bolt unit, the effect of jacking the two flanges is achieved. Compared with the traditional hydraulic jacking device, the volume of the jacking mechanism can be reduced, it is more convenient to operate between the two flanges, and it is easy to use, which can improve the blind plate loading and unloading efficiency. Description of the Drawings

[0029] The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0030] Figure 1 Shows a schematic installation diagram of a top extension mechanism according to an embodiment of the present application.

[0031] Figure 2 Shows a schematic diagram of a DCC blind plate structure according to an embodiment of the present application.

[0032] Figure 3 Shows a schematic side cross-sectional view of a DCC blind plate structure according to an embodiment of the present application.

[0033] Figure 4 Shows a schematic diagram of the structure of a top extension mechanism according to an embodiment of the present application.

[0034] Figure 5 Shows a schematic installation diagram of an elastic rope according to an embodiment of the present application.

[0035] Figure 6 Shows Figure 4 An enlarged schematic diagram of area B in

[0036] Figure 7 Shows a schematic partial top cross-sectional view of a top extension mechanism according to an embodiment of the present application.

[0037] Figure 8 Shows a schematic partial side cross-sectional view of a top extension mechanism according to an embodiment of the present application.

[0038] Figure 9 Shows a schematic diagram of the structure of a magnetic attraction assembly according to an embodiment of the present application.

[0039] Figure 10 Shows Figure 7 An enlarged schematic diagram of area E in

[0040] Reference numerals

[0041] 1 - Top extension mechanism;

[0042] 11 - Bolt unit; 111 - Screw rod; 112 - Nut;

[0043] 12 - Connection unit;

[0044] 121 - Quick-release component; 1211 - Sleeve; 1212 - Limit block; 1213 - Slide groove; 1214 - V-shaped stop bar; 1215 - Hole; 1216 - Card slot;

[0045] 122 - Magnetic component; 1221 - Connecting block; 1222 - Installation groove; 1223 - Magnet;

[0046] 2 - Elastic rope; 3 - Flange; 4 - Installation ring; 5 - Blind plate; 6 - Pipe; 7 - Bolt. Detailed implementation manners

[0047] In order to make the objectives, solutions, and advantages of the technical solutions of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below in conjunction with the drawings of the specific embodiments of this application. Unless otherwise specified, the terms used herein have the ordinary meanings in the art. The same reference numerals in the drawings represent the same components.

[0048] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0049] As described above, in the traditional DCC blind plate disassembly construction, due to the complex structure and large volume of the existing hydraulic jacking device, it is inconvenient to perform the jacking operation between two flanges.

[0050] In order to at least partially solve one or more of the above problems and other potential problems, the exemplary embodiments of this application provide a blind plate disassembly auxiliary device, which includes: at least two jacking mechanisms configured to expand the flanges on both sides of the blind plate; and at least one elastic rope configured to connect the plurality of jacking mechanisms; the jacking mechanism includes: a bolt unit configured to screw itself to apply a thrust force to both ends; and a connecting unit with one end connected to the bolt unit and the other end abutting against the surface of the flange, so as to reduce the volume of the jacking mechanism, making it more convenient to operate between two flanges, and being easy to use, which can improve the blind plate loading and unloading efficiency.

[0051] The following exemplarily illustrates the blind plate disassembly auxiliary device of the embodiments of this application with reference to the drawings. Figure 1 Shows the installation schematic diagram of the jacking mechanism according to an embodiment of this application. Figure 2 Shows the structural schematic diagram of the DCC blind plate according to an embodiment of this application. Figure 3 Shows the side cross-sectional schematic diagram of the DCC blind plate structure according to an embodiment of this application. Figure 4 Shows the structural schematic diagram of the jacking mechanism according to an embodiment of this application. Figure 5Shows a schematic diagram of the installation of an elastic rope according to an embodiment of the present application.

[0052] A blind flange disassembly device, comprising: at least two jacking mechanisms 1 configured to expand the flanges 3 on both sides of the blind flange 5; and at least one elastic rope 2 configured to connect the plurality of jacking mechanisms 1; the jacking mechanism 1 includes: a bolt unit 11 configured to screw itself to apply a thrust force to both ends; and a connection unit 12, one end of which is connected to the bolt unit 11 and the other end abuts against the surface of the flange 3.

[0053] In use, for example, one elastic rope 2 can be used to connect a plurality of jacking mechanisms 1, and the plurality of jacking mechanisms 1 can slide on the elastic rope 2. According to the diameters of the blind flange 5 and the flange 3 of the DCC device, two or more jacking mechanisms 1 are selected to expand the flange 3, so as to remove the blind flange 5 between the two flanges 3.

[0054] It should be noted that an installation ring 4 is provided on the outer wall of the circumferential direction of the connection unit 12. According to the number of elastic ropes 2, different numbers of installation rings 4 are selected, and the elastic ropes 2 pass through the installation rings 4 on each jacking mechanism 1, so as to string a plurality of jacking mechanisms 1 together by using the elastic ropes 2.

[0055] In this way, the deformation of the elastic rope 2 can be fully utilized. When half of the circumference of the flange 3 is greater than the length of the elastic rope 2, the jacking mechanisms 1 at both ends of the elastic rope 2 can be placed between the two flanges 3 by pulling both ends of the elastic rope 2, so as to adapt to various outer diameters of the flange 3.

[0056] Regarding the jacking mechanism 1, at least two sets of jacking mechanisms 1 are provided according to the outer diameter of the flange 3. The two sets of jacking mechanisms 1 are arranged on the straight line where the diameter of the flange 3 is located. By screwing the bolt units 11 of the two jacking mechanisms 1, the length of the bolt units 11 increases towards both ends, achieving the effect of increasing the distance between the two flanges 3, so as to achieve the purpose of removing the blind flange 5 from between the two flanges 3.

[0057] In addition, when the outer diameter of the flange 3 is too large and multiple jacking mechanisms 1 need to cooperate to expand it, the connection line of the jacking mechanisms 1 approaches a semi-circular shape, and the opening of the semi-circular shape is used to remove the blind flange 5. Different numbers of jacking mechanisms 1 can be selected according to actual usage requirements.

[0058] Regarding the elastic rope 2, one set or multiple sets of elastic ropes 2 can be provided. When two elastic ropes 2 are used to connect the jacking mechanisms 1, each jacking mechanism 1 approaches parallel, which can more conveniently fix the jacking mechanism 1 between the two flanges 3.

[0059] In addition, by connecting the jacking mechanism 1 with an elastic rope 2, not only can the above object be achieved, but also when the blind plate 5 is disassembled and the jacking mechanism 1 is disassembled, the jacking mechanisms 1 are connected by the elastic rope 2, preventing the jacking mechanisms 1 from falling after disassembly. Construction workers do not need to search for the disassembled jacking mechanisms 1, further improving the efficiency of blind plate 5 disassembly. At the same time, the disassembled jacking mechanisms 1 are connected by the elastic rope 2, making it more convenient to collect them.

[0060] Regarding the bolt unit 11, the bolt unit 11 drives the screw rod 111 to move by screwing the bolt to achieve the purpose of jacking. Compared with traditional jacking devices such as hydraulic devices, the structure is simple, and the miniaturized design is more conducive to operation between the two flanges 3.

[0061] It should be noted that the blind plate 5 of the DCC device is arranged between the two flanges 3. The two flanges 3 are respectively connected with pipelines 6, and the two flanges are connected by bolts 7.

[0062] Figure 1 Shows a schematic installation diagram of the jacking mechanism according to an embodiment of the present application. Figure 5 Shows a schematic installation diagram of the elastic rope according to an embodiment of the present application. Figure 6 Shows Figure 4 An enlarged schematic diagram of area B in Figure 7 Shows a partial top cross-sectional view schematic diagram of the jacking mechanism according to an embodiment of the present application. Figure 8 Shows a partial side cross-sectional view schematic diagram of the jacking mechanism according to an embodiment of the present application. Figure 9 Shows a schematic diagram of the structure of the magnetic attraction component according to an embodiment of the present application.

[0063] The bolt unit 11 includes: two screw rods 111, configured such that the two screw rods 111 are on the same straight line and the spiral directions of the two screw rods 111 are opposite; and a nut 112, arranged between the two screw rods 111 and meshing with the two screw rods 111 at both ends. The connection unit 12 includes: at least one quick-release component 121, connected to the screw rod 111; and at least one magnetic attraction component 122, connected to the quick-release component 121, with the other end for magnetically connecting to the flange 3. The magnetic attraction component 122 includes: a connection block 1221, connected to the quick-release component 121, with an installation groove 1222 provided on the other side; and a magnet 1223, arranged in the installation groove 1222.

[0064] Regarding the bolt unit 11, when operating the bolt unit 11, since the spiral directions of the two screw rods 111 are opposite and the two screw rods 111 are on the same straight line, when the nut 112 rotates, the screw rods 111 on both sides will simultaneously move closer to or away from the center of the nut 112, so that the purpose of driving the screw rod 111 to jack on both sides can be achieved by rotating the bolt.

[0065] Regarding the connection unit 12, the quick-release component 121 can be regarded as a connecting rod during the jacking stage. When it is necessary to quickly remove the jacking mechanism 1 from between the two flanges 3, the quick-release component 121 can be used to quickly remove the jacking mechanism 1. If it is not removed through the quick-release component 121, the nuts 112 of multiple jacking mechanisms 1 need to be screwed one by one, resulting in a reduction in work efficiency.

[0066] Regarding the magnetic attraction component 122, the function of the magnetic attraction component 122 is to fix the jacking mechanism 1 on the surface of the flange 3 before the start of the jacking stage. According to actual usage requirements, multiple jacking mechanisms 1 or two are selected for support. Through the magnetic attraction structure, it can be fixed first and then screwed to achieve the jacking effect. If the magnetic attraction structure is not used, multiple operators need to hold the jacking mechanism 1 at the same time to prevent the flanges 3 from approaching each other on one side when the bolts of the flange 3 are removed, causing extrusion to the blind plate 5.

[0067] Figure 1 Shows a schematic installation diagram of the jacking mechanism according to an embodiment of the present application. Figure 7 Shows a schematic partial top cross-sectional view of the jacking mechanism according to an embodiment of the present application. Figure 8 Shows a schematic partial side cross-sectional view of the jacking mechanism according to an embodiment of the present application. Figure 10 Shows Figure 7 An enlarged schematic view of area E in

[0068] The quick-release component 121 includes: a sleeve 1211 disposed between the magnetic attraction component 122 and the screw 111; a limit block 1212 disposed on the outer circumferential wall of the screw 111 near one end of the sleeve 1211; a sliding groove 1213 disposed on the inner wall of the sleeve 1211 near one end of the screw 111, and the limit block 1212 slides in the sliding groove 1213; a V-shaped stop rod 1214, one end of which is engaged with the inner wall of the sleeve 1211 and the other end abuts against the end wall of the screw 111, and is configured to limit the sliding of the screw 111 in the sleeve 1211 after being engaged with the inner wall of the sleeve 1211, and the screw 111 can slide in the sleeve 1211 after being disengaged from the inner wall of the sleeve 1211. Two holes 1215 are disposed on the outer circumferential wall of the sleeve 1211, and are respectively configured to engage with both ends of the V-shaped stop rod 1214; the V-shaped stop rod 1214 is configured to allow both ends to approach each other after one end is disengaged from the hole 1215; at least one end of the V-shaped stop rod 1214 is provided with a card slot 1216, and the card slot 1216 is configured to engage with the inner wall of the hole 1215 after one end of the V-shaped stop rod 1214 is disengaged from the hole 1215 and moves towards the inner wall of the sleeve 1211.

[0069] Regarding the quick-release component 121, when the jacking mechanism 1 completes the jacking work and the blind plate 5 is disassembled and replaced, strike one end of the V-shaped stop lever 1214 outside the hole 1215. By striking, one end of the V-shaped stop lever 1214 moves inward toward the hole 1215, causing the card slot 1216 to be engaged with the inner end of the hole 1215. At this time, one side of the V-shaped stop lever 1214 will tilt away from the screw rod 111, resulting in a gap between the top end of the V-shaped stop lever 1214 and the screw rod 111. The sleeve 1211 can slide a distance equal to this gap in the direction of the screw rod 111, and the limit block 1212 slides in the chute 1213. When the sleeve 1211 moves, the two ends of the jacking mechanism 1 can be disengaged from the flange 3, achieving the purpose of quick removal.

[0070] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

[0071] The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary technicians in the art to understand the disclosed embodiments.

[0072] The above are only optional embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. 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 blind plate disassembly assistance device, characterized in that, Comprising: At least two top - stretching mechanisms (1), configured to stretch the flanges (3) on both sides of the blind plate; And At least one elastic rope (2), configured to connect multiple said top - stretching mechanisms (1); The top - stretching mechanism (1) includes: A bolt unit (11), configured to screw itself to apply a thrust force to both ends; And A connection unit (12), with one end connected to the bolt unit (11) and the other end abutting against the surface of the flange (3).

2. The blind plate disassembly assisting device according to claim 1, characterized in that, The bolt unit (11) includes: Two screw rods (111), configured such that the two screw rods (111) are on the same straight line and the spiral directions of the two screw rods (111) are opposite; and A nut (112), arranged between the two screw rods (111) and meshing with the two screw rods (111) at both ends.

3. The blind plate disassembly assisting device according to claim 2, wherein, The connection unit (12) includes: At least one quick - release component (121), connected to the screw rod (111); and At least one magnetic - attraction component (122), connected to the quick - release component (121), with the other end used for magnetically connecting to the flange (3).

4. The blind plate disassembly assistance device according to claim 3, characterized in that, The magnetic - attraction component (122) includes: A connection block (1221), connected to the quick - release component (121), and having an installation groove (1222) on the other side; and A magnet (1223), arranged in the installation groove (1222).

5. The blind plate disassembly assistance device according to claim 3, characterized in that, The quick - release component (121) includes: A sleeve (1211), arranged between the magnetic - attraction component (122) and the screw rod (111); A limit block (1212), arranged on the outer circumferential wall of the screw rod (111) near one end of the sleeve (1211); A sliding groove (1213), arranged on the inner wall of the sleeve (1211) near one end of the screw rod (111), and the limit block (1212) slides in the sliding groove (1213); A V - shaped stop rod (1214), with one end engaged with the inner wall of the sleeve (1211) and the other end abutting against the end wall of the screw rod (111), configured to limit the sliding of the screw rod (111) in the sleeve (1211) after being engaged with the inner wall of the sleeve (1211), and the screw rod (111) can slide in the sleeve (1211) after being disengaged from the inner wall of the sleeve (1211).

6. The blind plate disassembly assisting device according to claim 5, wherein, Two holes (1215) are arranged on the outer circumferential wall of the sleeve (1211), configured to respectively engage with both ends of the V - shaped stop rod (1214); The V - shaped stop rod (1214) is configured such that both ends can approach each other after one end is disengaged from the hole (1215); At least one end of the V - shaped stop rod (1214) is provided with a clamping groove (1216), and the clamping groove (1216) is configured such that after one end of the V - shaped stop rod (1214) is disengaged from the hole (1215) towards the inner wall of the sleeve (1211), the inner wall of the hole (1215) engages with the clamping groove (1216).

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