CN213651605U - Special frock of thermal power factory high pressure feed water heater hoist and mount - Google Patents

Abstract

The utility model discloses a special tool for hoisting a high-pressure heater of a thermal power plant, which mainly relates to the field of large-scale power station equipment installation; the lifting device comprises a lifting beam and temporary lifting lugs fixed on a high-pressure heater, wherein two lifting lugs are symmetrically arranged at the bottom of the lifting beam, two steel lifting straps are arranged at the front end and the rear end of each lifting lug, the steel lifting straps are hinged with the lifting lugs, an arc-shaped steel belt adaptive to the temporary lifting lugs is arranged at the lower side between the two steel lifting straps on each lifting lug, connecting steel belts hinged to the steel lifting straps are arranged at the two ends of the top of the arc-shaped steel belt, a limit baffle adaptive to the arc-shaped steel belt is arranged at one end of each temporary lifting lug, which is far away from the high-pressure heater, the limit baffle is detachably connected with the temporary lifting lugs, and a limit steel belt adaptive to the limit; the utility model discloses can guarantee that the maximize utilizes high space, can guarantee again that the frock atress is reasonable, smooth and easy slip is rotatory, uses safe and reliable more.

Description

Special frock of thermal power factory high pressure feed water heater hoist and mount

Technical Field

The utility model relates to a large-scale power station equipment fixing field specifically is a special frock of thermal power factory high pressure feed water heater hoist and mount.

Background

At present, in the process of hoisting a vertical high-pressure heater, in order to enable the high-pressure heater to be hoisted from a hoisting hole and to be capable of realizing rotating, standing and translating in place, the adopted technical scheme is that two traveling cranes or other auxiliary hoisting equipment are utilized, two hoisting beams are used as special hoisting tools, steel wire ropes of the two hoisting beams are respectively connected with lifting lugs of the upper part and the lower part of a hoisting device, after the hoisting device is hoisted to a certain height, the hoisting beam on one side is hoisted to lift the upper part and the half part of the hoisting device, the hoisting beam on the other side slowly descends, the rotating and standing of the hoisting device is slowly realized until the whole hoisting device bears all loads by the hoisting beam on one side, the traveling cranes are horizontally moved to a high-pressure hoisting in-place position, and the high.

However, the general practice of laying slings on a lifting beam is mainly three, and in the actual construction process, a series of problems exist, for example:

the method comprises the steps that a hook group of two lifting beams is used as a force bearing point, two steel wire ropes are arranged on each hook group, the steel wire ropes of the two lifting beams are respectively connected with temporary lifting lugs at the upper part and the lower part of a high-pressure heater, however, the steel wire ropes are arranged by using the original hook groups, the steel wire ropes form a certain angle with the horizontal direction, the steel wire ropes can be contacted with a head part of the high-pressure heater in the rotating process after lifting, the steel wire ropes are subjected to inward component force action, and the friction with the inner sides of the temporary lifting lugs is serious in the rotating process, such as the length of the steel wire ropes is increased, although the friction contact between the steel wire ropes and the head part of the high-pressure heater can be relieved, the lifting height of the high-;

the method II comprises the steps that a self-carrying hook group of the lifting beam is removed, two special steel wire ropes are erected on the upper portion of the lifting beam, the upper portion of the lifting beam serves as a force bearing point, the steel wire ropes of the two lifting beams are respectively connected with temporary lifting lugs on the upper portion and the lower portion of a high-pressure heater, however, the two special steel wire ropes are erected on the upper portion of the lifting beam, the upper portion of the lifting beam serves as the force bearing point, in the rotating process after lifting, under the action of friction force between the steel wire ropes and the temporary lifting lugs on the high-pressure heater, the steel wire ropes tend to slide on the lifting beam, friction force between the steel wire ropes and the lifting beam can enable the lifting beam to incline in the vertical direction, direct influence is;

and thirdly, two hoisting points are newly arranged at the lower part of the lifting beam, two special steel wire rope slings are installed, the lower part of the lifting beam is used as a bearing point, the steel wire ropes of the two lifting beams are respectively connected with temporary lifting lugs at the upper part and the lower part of the high-pressure heater, however, the hoisting points are arranged at the lower part of the lifting beam, the special steel wire rope slings are installed, and in the rotating process after hoisting, the steel wire ropes and the temporary lifting lugs of the high-pressure heater are subjected to rigid friction under stress, so that the steel wires of the steel wire ropes have the hidden danger of abrasion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that exists among the prior art, provide a can make the special frock of thermal power factory high pressure feed water heater hoist and mount that vertical high pressure feed water heater takes one's place in narrow and small space, can guarantee the maximize and utilize high space, can guarantee again that the frock atress is reasonable, smooth and easy slip is rotatory, uses safe and reliable more.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

the utility model provides a special frock of thermal power factory high pressure feed water heater hoist and mount, is including lifting the hanging beam, fixing the interim lug on high pressure feed water heater, the bottom symmetry of lifting the hanging beam is equipped with two lugs, every both ends all are equipped with two steel suspender around the lug, the steel suspender is articulated with the lug, and downside between two steel suspender on every lug all is equipped with the arc steel band that suits with interim lug, the both ends at the top of arc steel band all are equipped with the steel band of being connected with steel suspender articulated, the one end that high pressure feed water heater was kept away from to interim lug is equipped with the limit baffle who suits with the arc steel band, limit baffle can dismantle with interim lug and be connected, the upside of arc steel band is equipped with the limit steel band that suits with limit baffle.

Preferably, the upper end and the lower end of the steel sling are provided with reinforcing plates.

Preferably, a polytetrafluoroethylene plate is arranged between the steel hanging strip and the lifting lug, and lubricating oil is coated on the polytetrafluoroethylene plate.

Preferably, the limiting baffle is a flange cover and is fixed at the end part of the temporary lifting lug through screws.

Preferably, the limiting steel belt is in a rectangular frame shape.

Preferably, the left end and the right end of the top of the lifting beam are hinged with pull plates connected with a lifting hook of a travelling crane.

Contrast prior art, the beneficial effects of the utility model reside in that:

the utility model utilizes the cooperation of the arc-shaped steel belt and the limit baffle to play a role of a stop, can prevent the arc-shaped steel belt from sliding off the temporary lifting lug, and can ensure the safety and the stability of hoisting; the arc-shaped steel belt can meet the requirement of relative rotation between the temporary lifting lug and the arc-shaped steel belt in the hoisting process; the steel sling and the lifting lug as well as the steel sling and the connecting steel belt are hinged, so that the influence of slight shaking on the lifting beam in the lifting process can be absorbed, and the field installation and the field disassembly are facilitated; the precision equipment has the advantages of less investment, simple construction process, convenient operation, easy control, economy, practicality, short construction period and low cost, can ensure that the height space is maximally utilized, can ensure that the tool is stressed reasonably, smoothly slides and rotates, and is safer and more reliable to use.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of an arc-shaped steel strip;

fig. 3 is a reference diagram of the usage state of the present invention.

The reference numbers in the drawings: 1. lifting the hanging beam; 2. a high pressure heater; 3. temporary lifting lugs; 4. lifting lugs; 5. a steel sling; 6. an arc-shaped steel belt; 7. connecting the steel belts; 8. a limit baffle; 9. a limiting steel belt; 10. a reinforcing plate; 11. a polytetrafluoroethylene sheet; 12. pulling a plate; 13. a first pin shaft; 14. a second pin shaft; 15. and a third pin shaft.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

Example (b): as shown in the attached drawings 1-3, the utility model relates to a special frock of thermal power factory high pressure feed water heater hoist and mount, including lifting hanging beam 1, fixing interim lug 3 on high pressure feed water heater 2, the quantity of interim lug 3 is four, and two are a set of, all weld on the outer wall at high pressure feed water heater 2's both ends have a set of interim lug 3. Two lifting lugs 4 are symmetrically welded at the bottom of the lifting beam 1, two steel lifting straps 5 are arranged at the front end and the rear end of each lifting lug 4, the steel lifting straps 5 are hinged to the lifting lugs 4 through first hinge pins 13, and through holes matched with the first hinge pins 13 are formed in the steel lifting straps 5 and the lifting lugs 4. Preferably, in order to reduce friction during rotation, a teflon plate 11 is arranged between the steel sling 5 and the lifting lug 4, and lubricating oil is coated on the teflon plate 11. Every downside between two steel suspender 5 on the lug 4 all is equipped with the arc steel band 6 that suits with interim lug 3, the both ends at the top of arc steel band 6 all are equipped with and steel suspender 5 articulated connection steel band 7, adopt the integral type structure between connection steel band 7 and the arc steel band 6, connect steel band 7 and sell 14 articulated with steel suspender 5 through the second, all be equipped with the through hole that suits with second round pin axle 14 on steel suspender 5, connection steel band 7, preferably, in order to guarantee the intensity of steel suspender, reinforcing plate 10 has all been welded at steel suspender 5's upper and lower both ends. The one end that interim lug 3 kept away from high pressure feed water heater 2 is equipped with the limit baffle 8 that suits with arc steel band 6, limit baffle 8 can be dismantled with interim lug 3 and be connected, and is preferred, and is convenient for the utility model discloses a use, limit baffle 8 is the blind flange, limit baffle 8 passes through the screw fixation at the tip of interim lug 3, and convenient to detach and installation arc steel band 6 have played the effect of backstop at the rotatory in-process of steel sling again, prevent that arc steel band 6 from slipping in the lug at rotatory process. The upper side of the arc-shaped steel belt 6 is provided with a limiting steel belt 9 matched with the limiting baffle 8, preferably, the limiting steel belt 9 is in a rectangular frame shape, a through hole matched with a second pin shaft 14 is formed in the limiting steel belt 9, and the second pin shaft 14 penetrates through the limiting steel belt 9, so that the mounting is convenient.

Furthermore, the left end and the right end of the top of the lifting beam 1 are hinged with pull plates 12 connected with a lifting hook of a travelling crane, the pull plates 12 are hinged with the lifting beam 1 through third pin shafts 15, the lifting hook is connected with the lifting beam in a pull plate pin shaft connection mode, the height of a sling can be reduced to the maximum extent, and the height of the high-pressure heater is increased to the maximum extent.

The utility model discloses use under the cooperation of steam turbine room driving lifting hook, on original basis of lifting the hanging beam, weld lug 4 behind the lower part rational selection hoisting point of lifting the hanging beam, install steel suspender 5, it is articulated through first round pin axle 13 between steel suspender 5 and the lug 4, install the thick polytetrafluoroethylene board of 2mm between steel suspender 5 and lug 4, and paint the butter, reduce the friction of rotatory in-process, arc steel band 6 hangs on interim lug 3, steel suspender 5, arc steel band 6, it all adopts high strength metal material to connect steel band 7, width 400mm, and carried out whole enhancement design to arc steel band 6, it is difficult to the installation to avoid taking apart the deformation apart, arc steel band 6 is under the prerequisite that satisfies the intensity requirement, satisfy the function of arc steel band 6 rotatory on interim lug 3 simultaneously.

The arc-shaped steel belt 6, the limiting baffle 8 and the limiting steel belt 9 are matched to play a role of stopping, so that the arc-shaped steel belt 6 can be prevented from sliding off the temporary lifting lug 3, and the lifting safety and stability can be ensured; the steel sling 5 and the lifting lug 4 as well as the steel sling 5 and the connecting steel belt 7 are hinged, so that the influence of slight shaking on the lifting beam in the lifting process can be absorbed, and the field installation and the field disassembly are facilitated; the utility model discloses the precision equipment who adopts drops into fewly, and construction process is simple, convenient operation, and easily control, economical and practical, construction cycle is short, and is with low costs, can guarantee that the maximize utilizes high space, can guarantee again that the frock atress is reasonable, smooth and easy slip is rotatory, uses safe and reliable more.

Claims (6)

1. The utility model provides a special frock of thermal power factory high pressure feed water heater hoist and mount, is including lifting hanging beam (1), fixing interim lug (3) on high pressure feed water heater (2), its characterized in that: the bottom symmetry of lifting beam (1) is equipped with two lugs (4), every both ends all are equipped with two steel suspender (5) around lug (4), steel suspender (5) are articulated with lug (4), and downside between two steel suspender (5) on every lug (4) all is equipped with arc steel band (6) that suit with interim lug (3), the both ends at the top of arc steel band (6) all are equipped with and steel suspender (5) articulated connection steel band (7), the one end that high pressure heater (2) were kept away from in interim lug (3) is equipped with limit baffle (8) that suit with arc steel band (6), limit baffle (8) can be dismantled with interim lug (3) and be connected, the upside of arc steel band (6) is equipped with limit steel band (9) that suit with limit baffle (8).

2. The special tool for hoisting the high-pressure heater of the thermal power plant as claimed in claim 1, wherein the tool comprises: and reinforcing plates (10) are arranged at the upper end and the lower end of the steel sling (5).

3. The special tool for hoisting the high-pressure heater of the thermal power plant as claimed in claim 1, wherein the tool comprises: a polytetrafluoroethylene plate (11) is arranged between the steel hanging strip (5) and the lifting lug (4), and lubricating oil is coated on the polytetrafluoroethylene plate (11).

4. The special tool for hoisting the high-pressure heater of the thermal power plant as claimed in claim 1, wherein the tool comprises: the limiting baffle (8) is a flange cover, and the limiting baffle (8) is fixed at the end part of the temporary lifting lug (3) through screws.

5. The special tool for hoisting the high-pressure heater of the thermal power plant as claimed in claim 1, wherein the tool comprises: the limiting steel belt (9) is in a rectangular frame shape.

6. The special tool for hoisting the high-pressure heater of the thermal power plant as claimed in claim 1, wherein the tool comprises: the left end and the right end of the top of the lifting beam (1) are hinged with pull plates (12) connected with lifting hooks of a travelling crane.

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