CN212893447U

CN212893447U - Unhooking device for boiler heating surface

Info

Publication number: CN212893447U
Application number: CN202021111625.2U
Authority: CN
Inventors: 李艳鹏; 李连川; 顾正义; 陈红军; 朱雪飞; 李亚楠; 陈炯炯; 伍翔; 刘博�; 王艳红
Original assignee: China Energy Engineering Group Jiangsu No1 Electric Power Construction Co ltd
Current assignee: China Energy Engineering Group Jiangsu No1 Electric Power Construction Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-04-06
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a unhooking device of boiler heating surface, including hoist and mount subassembly and unhooking subassembly, upwards stretch out furnace's big plate girder on the screw rod upper portion of boiler heating surface self, the hoist and mount subassembly passes through the bolt fastening at the screw rod top for the screw rod lifts by crane. The unhooking assembly is fixed at the bottom of the screw rod through a bolt, a plurality of unhooking devices of the boiler heating surface are sequentially arranged, and the sequentially arranged unhooking assemblies are used for connecting the heating surface to unhook the heating surface. The utility model discloses can hoist safely and take one's place and can practice thrift cost, raise the efficiency again.

Description

Unhooking device for boiler heating surface

Technical Field

The utility model belongs to thermal power factory boiler lifting device, concretely relates to unhook device of boiler heating surface.

Background

The heating surface of the boiler is composed of a row of tubes, the whole body is cuboid, the weight is heavy, the volume can reach about 36 tons, particularly the length is long, the length can reach tens of meters, and the middle part of the heating surface of the boiler is not rigidly supported, so that the whole flexibility is large. Because the heating surface is vertically arranged, the heating surface is adjusted to be in a vertical state from a horizontal state under normal conditions, and then is hoisted in place from the top, namely, the heating surface is hoisted layer by layer from top to bottom. During hoisting, the requirement on integral coordination and matching of a crane is high, and when the original boiler is hoisted in place on the heating surface of the left wall or the right wall, due to the hoisting direction of the heating surface, the suspender in place is not easy to insert into the suspender port at the upper part of the heating surface, and forced insertion can cause collision between the heating surface and a boiler hearth and deformation of the suspender; when the original heating surface is hoisted in place, workers can insert the suspender into the suspender port on the upper part of the heating surface on the heating surface, the insertion difficulty is high, the damage is easy to cause, and the safety factor is low; the original defects that the heating surface is difficult to unhook and the like are easily caused due to the great difficulty in placing when the heating surface is hoisted in place and the time is wasted, and the engineering construction efficiency is not high.

Disclosure of Invention

An object of the utility model is to provide a unhooking device of boiler heating surface can hoist safely and take one's place and can practice thrift cost, raise the efficiency again.

Realize the utility model discloses the technical solution of purpose does: the utility model provides a unhook device of boiler heating surface, includes hoist and mount subassembly, unhook subassembly, and the big plate girder of furnace is upwards stretched out on the screw rod upper portion of boiler heating surface self, and the hoist and mount subassembly passes through the bolt fastening at the screw rod top for hoist the screw rod. The unhooking assembly is fixed at the bottom of the screw rod through a bolt, a plurality of unhooking devices of the boiler heating surface are sequentially arranged, and the sequentially arranged unhooking assemblies are used for connecting the heating surface to unhook the heating surface.

Compared with the prior art, the utility model, it is showing the advantage and lies in:

(1) original boiler carries out left wall or right wall heating surface hoist and mount in-process again, because the reason of heating surface direction, when taking one's place the jib is difficult to insert in the heating surface upper portion jib mouth, inserts by force and can lead to heating surface and boiler furnace to send into the collision to and the jib warp, uses the utility model discloses can effectively avoid these problems.

(2) When original heating surface hoist and mount take one's place, need the workman insert the screw rod on it and receive the intraoral and not good inserting of heating surface upper portion jib, cause the damage easily, use the utility model discloses can effectively avoid the emergence of damage.

(3) Original heated surface hoist and mount when taking one's place owing to take one's place the degree of difficulty greatly very waste time, use the utility model discloses can shorten heated surface hoist and mount time of taking one's place greatly.

Drawings

Fig. 1 is a schematic view of the whole structure of the unhooking device for the boiler heating surface of the present invention.

Figure 2 is the utility model discloses a hoist and mount subassembly sketch map.

Fig. 3 is a schematic view of the unhooking assembly of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to fig. 1, 2 and 3, the unhooking device for the boiler heating surface comprises a hoisting component and an unhooking component, wherein the upper part of a screw of the boiler heating surface upwards extends out of a large plate beam of a hearth, and the hoisting component is fixed on the top of the screw through a bolt and is used for hoisting the screw. The unhooking assembly is fixed at the bottom of the screw rod through a bolt, a plurality of unhooking devices of the boiler heating surface are sequentially arranged, and the sequentially arranged unhooking assemblies are used for connecting the heating surface to unhook the heating surface.

The unhooking device of the boiler heating surface further comprises a stacking spring, and the stacking spring is arranged between the bottom surface of the hoisting assembly and the top surface of the furnace large plate beam and plays a role in buffering.

The hoisting assembly comprises a first short pipe 3, a first flange 2 and a second flange 4, the first flange 2 and the second flange 4 are fixed at two ends of the first short pipe 3 through full welding, the first short pipe 3 is sleeved at the top end of the screw rod and fixed with the screw rod through a bolt, and then the screw rod is hoisted.

The unhooking assembly comprises a third flange 5, a second short pipe 6, a fourth flange 11, a first lifting lug 7, a second lifting lug 8, a first shackle 9, a second shackle 10, a first steel wire rope 13 and a second steel wire rope 14, the third flange 5 and the fourth flange 11 are fixed at two ends of the second short pipe 6 through full-length welding, the third flange 5 is located above the fourth flange 11, and the second short pipe 6 is sleeved at the bottom end of a screw and fixed with the screw through bolts. The first lifting lug 7 and the second lifting lug 8 are symmetrically and fully welded on two sides of the second short pipe 6 and are positioned on the top surface of the fourth flange 11. The first shackle 9, the first steel wire rope 13 and the first lifting lug 7 are matched, and the second shackle 10, the second steel wire rope 14 and the second lifting lug 8 are matched and used for connecting a lifting rod hole at the upper part of the heating surface.

The first stub 3 is the same length as the first wire rope 13.

The first stub 3 and the second steel wire rope 14 are the same in length.

During construction, two sets of unhooking devices are adopted to fix two sides of a heating surface and construct a screw rod of the heating surface from two sides to the middle, and the method comprises the following specific steps:

the temporary support is erected, the screw rod is pulled up by the hoist, the upper portion of the screw rod extends upwards out of the large plate beam of the hearth, the first flange 2 and the second flange 4 are welded to the first short pipe 3, then the first short pipe 3 is sleeved on the top of the screw rod, the two nuts are tightened, and the screw rod is hoisted.

And welding a third flange 5 and a fourth flange 11 at two ends of a second short pipe 6, welding a first lifting lug 7 and a second lifting lug 8 at two sides of the second short pipe 6, sleeving the second short pipe 6 at the lower end of the screw rod, tightening a nut, and temporarily hanging a first shackle 9, a first steel wire rope 13, a second shackle 10 and a second steel wire rope 14. After the whole process is finished, the screw rod on the other side of the heating surface is installed well according to the steps, when the heating surface to be hoisted is in place, the prepared steel wire rope and the shackle are sleeved in the hanger rod hole on the upper portion of the heating surface to be thrown, the hook can be loosened, the other screw rods are inserted one by one, after the fixing is finished, the unhooking device of the heating surface of the boiler is detached, and the screw rods at two ends are inserted to finish the hoisting.

Claims

1. The utility model provides a trip gear of boiler heating surface, upwards stretches out the big plate girder of furnace with the screw rod upper portion of boiler heating surface self, as whole trip gear's support piece, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the hoisting assembly is fixed at the top of the screw and used for hoisting the screw;

and the unhooking assemblies are fixed at the bottoms of the screws, a plurality of unhooking devices of the heating surfaces of the boiler are sequentially arranged, and the sequentially arranged unhooking assemblies are used for connecting the heating surfaces and unhooking the heating surfaces.

2. The unhooking device for the heating surface of the boiler of claim 1, wherein: the hoisting assembly comprises a first short pipe (3), a first flange (2) and a second flange (4), the first flange (2) and the second flange (4) are fixed at two ends of the first short pipe (3), and the first short pipe (3) is sleeved at the top end of the screw rod and fixed so as to hoist the screw rod.

3. The apparatus for unhooking a heated surface of a boiler of claim 2, wherein: the first short pipe (3) is fully welded with the first flange (2) and the second flange (4) respectively.

4. The apparatus for unhooking a heated surface of a boiler of claim 2, wherein: the unhooking assembly comprises a third flange (5), a second short pipe (6), a fourth flange (11), a first lifting lug (7), a second lifting lug (8), a first shackle (9), a second shackle (10), a first steel wire rope (13) and a second steel wire rope (14), the third flange (5) and the fourth flange (11) are fixed at two ends of the second short pipe (6), and the second short pipe (6) is sleeved at the bottom end of the screw and fixed with the screw; the first lifting lug (7) and the second lifting lug (8) are symmetrically fixed on two sides of the second short pipe (6) and located on the top surface of the fourth flange (11), the first shackle (9), the first steel wire rope (13) are matched with the first lifting lug (7), and the second shackle (10), the second steel wire rope (14) are matched with the second lifting lug (8) and used for being connected with a lifting rod hole in the upper portion of the heating surface.

5. The apparatus for unhooking a heated surface of a boiler of claim 4, wherein: the second short pipe (6) is fully welded with the third flange (5), the fourth flange (11), the first lifting lug (7) and the second lifting lug (8) respectively.

6. The apparatus for unhooking a heated surface of a boiler of claim 4, wherein: the first short pipe (3) and the first steel wire rope (13) are the same in length.

7. The apparatus for unhooking a heated surface of a boiler of claim 4, wherein: the first short pipe (3) and the second steel wire rope (14) are the same in length.

8. The unhooking device for the heating surface of the boiler of claim 1, wherein: the furnace hearth beam hoisting device is characterized by further comprising a stacking spring, wherein the stacking spring is arranged between the bottom surface of the hoisting assembly and the top surface of the furnace hearth beam, and plays a role in buffering.

9. The unhooking device for the heating surface of the boiler of claim 1, wherein: two sets of unhooking devices of the boiler heating surface are respectively fixed on two sides of the boiler heating surface.