CN111056443A - Air separation device cold prying medium-pressure tower installation method - Google Patents
Air separation device cold prying medium-pressure tower installation method Download PDFInfo
- Publication number
- CN111056443A CN111056443A CN201911417037.3A CN201911417037A CN111056443A CN 111056443 A CN111056443 A CN 111056443A CN 201911417037 A CN201911417037 A CN 201911417037A CN 111056443 A CN111056443 A CN 111056443A
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- China
- Prior art keywords
- medium
- pressure tower
- cold
- pry
- rotating mechanism
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
Abstract
The air separation device cold pry medium-pressure tower installation method comprises the following steps: a rotating mechanism is arranged on the cold pry, the lower end of the medium-pressure tower is hoisted to the rotating mechanism by a crane and is fixed, and two winches are fixedly arranged on two sides of the medium-pressure tower respectively; the second step is that: two winch steel wire ropes are pulled out to be connected to the upper end of the medium-pressure tower, and then the crane lifts the head end of the medium-pressure tower; the third step: the lower end of the medium-pressure tower is rotated to be vertical on the rotating mechanism by winding and unwinding two winch steel wire ropes; the fourth step: after the lower end of the medium-pressure tower is fixedly connected with the skirt installed on the cold pry, the rotating mechanism is detached, a circle of scaffold is assumed around the periphery of the medium-pressure tower, and the medium-pressure tower and the scaffold are used as supporting points to lift and install other equipment. The invention is used for solving the problem that the existing crane cannot finish the vertical installation of the medium-pressure tower.
Description
Technical Field
The invention relates to an air separation device cold prying medium-pressure tower installation method.
Background
The height of the medium-pressure tower of the large-scale air separation equipment is 30 meters, the arm length of the crane is about 27 meters, the lifting limit of the crane is exceeded, and the vertical installation of the medium-pressure tower cannot be completed.
Disclosure of Invention
The invention aims to solve the technical problem of providing an air separation device cold prying medium-pressure tower installation method, which is used for solving the problem that the conventional crane cannot be used for vertically installing a medium-pressure tower.
In order to solve the above problems, the technical solution to be solved by the present invention is:
the method for installing the air separation device cold pry medium-pressure tower comprises the following steps,
the first step is as follows: a rotating mechanism is arranged on the cold pry, the lower end of the medium-pressure tower is hoisted to the rotating mechanism by a crane and is fixed, and two winches are fixedly arranged on two sides of the medium-pressure tower respectively;
the second step is that: two winch steel wire ropes are pulled out to be connected to the upper end of the medium-pressure tower, and then the crane lifts the head end of the medium-pressure tower;
the third step: the lower end of the medium-pressure tower is rotated to be vertical on the rotating mechanism by winding and unwinding two winch steel wire ropes;
the fourth step: after the lower end of the medium-pressure tower is fixedly connected with the skirt installed on the cold pry, the rotating mechanism is detached, a circle of scaffold is assumed around the periphery of the medium-pressure tower, and the medium-pressure tower and the scaffold are used as supporting points to lift and install other equipment.
The rotary mechanism comprises a fixed ring fixedly connected to the outside of the lower end of the medium-pressure tower, supports are fixedly connected to cold skids on two sides of the fixed ring respectively, a sliding groove is formed in each support, a sliding block is arranged in the sliding groove, two rotating shafts fixedly connected to two sides of the fixed ring respectively are respectively and axially connected into the two sliding blocks, a jack is arranged below each sliding block, and each sliding block is supported on the jack.
The support is through the detachable connection of screw on cold sled, the slider includes thinner front end and thicker rear end, and the front end assembly is in the support spout, and the rear end supports on the support terminal surface with the front end bonding surface.
The invention has the beneficial effects that: this patent can use the loop wheel machine that the arm length is about 27 meters to accomplish the installation work to the length is 30 meters middling pressure tower, and operation method is simple, safe and reliable.
Drawings
The invention is further described below with reference to the accompanying drawings:
figure 1 is a schematic front view of a rotary mechanism according to the present invention,
figure 2 is a side view schematic diagram of the rotary mechanism of the present invention,
FIG. 3 is a schematic cross-sectional view of the retaining ring of the present invention,
figure 4 is a schematic front view of the present invention in the installation of a medium-pressure column,
figure 5 is a schematic front view of the medium-pressure column according to the invention in its installation,
figure 6 is a schematic front view of the medium-pressure column according to the invention in its installation,
fig. 7 is a schematic front view of the medium-pressure tower according to the present invention.
Detailed Description
The method for installing the air separation device cold pry medium-pressure tower comprises the following steps,
as shown in fig. 4, the first step: a rotating mechanism is arranged on the cold pry 7, the lower end of the medium-pressure tower 1 is hoisted to the rotating mechanism by a crane and is fixed, two sides of the medium-pressure tower 1 are respectively and fixedly provided with a winch 8, and the winches 8 are fixedly connected to the ground through anchor rods.
As shown in fig. 1 to 3, the rotating mechanism comprises a fixed ring 3 fixedly connected outside the lower end of the medium pressure column 1, the cold skids 7 at two sides of the fixed ring 3 are respectively and fixedly connected with the brackets 2, each bracket 2 is internally provided with a sliding chute 21, the sliding chute 21 is internally provided with a sliding block 4, two rotating shafts 8 which are respectively and fixedly connected with two sides of the fixed ring 3 are respectively and axially connected in the two sliding blocks 4, a jack 5 is arranged below each sliding block 4, each sliding block 4 is supported on the hydraulic jack 5, the fixed ring 3 comprises two arc-shaped flanges which are connected through screws, after the lower end of the medium pressure tower 1 is hoisted by a crane, two arc-shaped flanges are connected to the periphery of the medium pressure tower 1, then a fixed ring 3 is connected with a skirt flange of the medium pressure tower 1 through a plurality of screws, then, the sliding blocks 4 are respectively installed on the rotating shafts 8 at the two ends of the fixing ring 3, and the sliding blocks 4 are assembled into the sliding grooves 21 of the two brackets 2.
As shown in fig. 5, the second step: the two hoisting machines 8 are pulled out to be connected to the upper end of the medium-pressure tower 1 through steel wire ropes, then the head end of the medium-pressure tower 1 is lifted through the crane, in the lifting process, the two hoisting machines 8 are operated to be matched with the crane to lift the head end of the medium-pressure tower 1, and when the included angle between the lifted medium-pressure tower 1 and the ground is about 60 degrees, a crane hook can be loosened.
As shown in fig. 6, the third step: the lower end of the medium-pressure tower 1 is rotated to be vertical on the rotating mechanism by winding and unwinding two steel wire ropes of a winch 8;
as shown in fig. 7, the fourth step: slowly descending a jack 5, inserting the lower end of the medium-pressure tower 1 into a skirt seat on a cold pry 7, then fixedly connecting a medium-pressure mounting skirt edge with the skirt seat by using a falling device, then removing a rotating mechanism, taking the middle-pressure tower 1 as a support, assuming a circle of scaffold at the periphery of the medium-pressure tower 1, afraid of the scaffold by workers, removing steel wire ropes of various winches 8, and mounting other equipment by using the scaffold, such as an outer-layer heat insulation sheet, a valve, a pipeline and the like of the medium-pressure tower 1.
The bracket 2 is detachably connected to the cold pry 7 through a screw, the sliding block 4 comprises a thin front end 42 and a thick rear end 41, the front end 42 is assembled in the sliding groove 21 of the bracket 2, and the combination surface of the rear end 41 and the front end 42 is abutted against the end surface of the bracket 2. After dismantling support 2 and cold sled 7 screw, can outwards translation support 2, with support 2 and slider 4 separation, conveniently demolish rotary mechanism.
Claims (3)
1. The method for installing the air separation device cold pry medium-pressure tower is characterized by comprising the following steps of,
the first step is as follows: a rotating mechanism is arranged on the cold pry (7), a crane is used for hoisting and conveying the lower end of the medium-pressure tower (1) to the rotating mechanism and fixing the lower end of the medium-pressure tower, and two windlasses (8) are respectively and fixedly arranged on two sides of the medium-pressure tower (1);
the second step is that: two hoisting machines (8) are pulled out, steel wire ropes are connected to the upper end of the medium-pressure tower (1), and then the hoisting machines lift the head end of the medium-pressure tower (1);
the third step: the lower end of the medium-pressure tower (1) is rotated to be vertical on the rotating mechanism by winding and unwinding two steel wire ropes of a winch (8);
the fourth step: after the lower end of the medium-pressure tower (1) is fixedly connected with a skirt installed on the cold pry (7), the rotating mechanism is detached, a circle of scaffold is assumed around the periphery of the medium-pressure tower (1), and the medium-pressure tower (1) and the scaffold are used as supporting points to lift and install other equipment.
2. The air separation device cold pry medium pressure tower installation method according to claim 1, wherein the rotating mechanism comprises a fixing ring (3) fixedly connected outside the lower end of the medium pressure tower (1), brackets (2) are fixedly connected to cold pries (7) on two sides of the fixing ring (3) respectively, a sliding groove (21) is formed in each bracket (2), a sliding block (4) is arranged in each sliding groove (21), two rotating shafts (8) fixedly connected to two sides of the fixing ring (3) respectively are connected in the two sliding blocks (4) in an axial mode respectively, a jack (5) is arranged below each sliding block (4), and each sliding block (4) is supported on the jack (5).
3. The method for installing the middle pressure tower of the air separation device cold pry as claimed in claim 2, wherein the support (2) is detachably connected to the cold pry (7) through screws, the sliding block (4) comprises a thin front end (42) and a thick rear end (41), the front end (42) is assembled in the sliding groove (21) of the support (2), and the joint surface of the rear end (41) and the front end (42) abuts against the end surface of the support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911417037.3A CN111056443A (en) | 2019-12-31 | 2019-12-31 | Air separation device cold prying medium-pressure tower installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911417037.3A CN111056443A (en) | 2019-12-31 | 2019-12-31 | Air separation device cold prying medium-pressure tower installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111056443A true CN111056443A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911417037.3A Pending CN111056443A (en) | 2019-12-31 | 2019-12-31 | Air separation device cold prying medium-pressure tower installation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944920A (en) * | 2006-10-25 | 2007-04-11 | 唐山开滦建设(集团)有限责任公司 | Method for setting up large box type steel structure permanent headframe during well drilling period |
| CN203728398U (en) * | 2014-02-14 | 2014-07-23 | 上海第一机床厂有限公司 | Transporting device with lifting and overturning functions |
| CN204747905U (en) * | 2015-07-08 | 2015-11-11 | 开封空分集团有限公司 | Turning device is assisted to large -scale aluminium vessel tower body process of falling |
| US20180155172A1 (en) * | 2016-12-02 | 2018-06-07 | Mcdowell And Dellinger, Llc | Apparaus and method for nesting bulk seed boxes |
| CN110510450A (en) * | 2018-05-21 | 2019-11-29 | 张勇 | A kind of cable reel payout auxiliary device and method |
-
2019
- 2019-12-31 CN CN201911417037.3A patent/CN111056443A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944920A (en) * | 2006-10-25 | 2007-04-11 | 唐山开滦建设(集团)有限责任公司 | Method for setting up large box type steel structure permanent headframe during well drilling period |
| CN203728398U (en) * | 2014-02-14 | 2014-07-23 | 上海第一机床厂有限公司 | Transporting device with lifting and overturning functions |
| CN204747905U (en) * | 2015-07-08 | 2015-11-11 | 开封空分集团有限公司 | Turning device is assisted to large -scale aluminium vessel tower body process of falling |
| US20180155172A1 (en) * | 2016-12-02 | 2018-06-07 | Mcdowell And Dellinger, Llc | Apparaus and method for nesting bulk seed boxes |
| CN110510450A (en) * | 2018-05-21 | 2019-11-29 | 张勇 | A kind of cable reel payout auxiliary device and method |
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Application publication date: 20200424 |
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| RJ01 | Rejection of invention patent application after publication |