CN212050187U - Flange connection type item and circulating water outlet part of rear water chamber of conventional island condenser - Google Patents
Flange connection type item and circulating water outlet part of rear water chamber of conventional island condenser Download PDFInfo
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- CN212050187U CN212050187U CN202020455832.3U CN202020455832U CN212050187U CN 212050187 U CN212050187 U CN 212050187U CN 202020455832 U CN202020455832 U CN 202020455832U CN 212050187 U CN212050187 U CN 212050187U
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Abstract
The utility model provides a hydroecium circulating water export spare behind flange joint class item and conventional island condenser. The flange connection type item comprises a hoisting tool and a flange for vertical hoisting, wherein a plurality of connecting holes are formed in the circumferential direction of the flange, and the axis direction of each connecting hole is the vertical direction; the hoisting tool comprises a connecting plate and a hoisting plate, the connecting plate and the hoisting plate are vertically connected to form a right-angle-shaped component, the connecting plate is detachably connected with the flange, a hoisting hole is formed in the hoisting plate and used for installing a shackle, and the axis direction of the hoisting hole is the horizontal direction; and at least 2 hoisting tools are uniformly arranged in the circumferential direction of the flange. This conventional island condenser rear water chamber circulating water outlet spare includes this flange joint class item. The flange connection type items can realize quick and stable connection between the flange connection type items and the shackle.
Description
Technical Field
The utility model belongs to installation engineering field, in particular to hydroecium circulating water export spare behind flange joint class item and conventional island condenser.
Background
When the hoisting flange is connected with the object, the hoisting ring cannot penetrate because the flange hole is too small or the flange steel plate is too thick, and other hoisting points which are not suitable are not available, so that the hoisting is difficult. For example, the circulating water outlet part of the rear water chamber of the conventional island condenser is a vertical pipe which is vertically arranged, flange connection items such as a ball collecting net, a butterfly valve and the like are arranged on the vertical pipe, but no proper lifting point exists, if the lifting belt is directly bound on a flange plate for use, the phenomenon that the lifting belt is bent for use exists, and the standard requirement is not met; if the hoisting belt is bound at the electric head, the pneumatic control panel and other places, the possibility of damaging the electric head, the pneumatic control panel and the like exists, and the risk of instability exists during hoisting of objects; if the shackle that adopts rings and bolt combination to make up hoists, then the bolt is placed perpendicularly, and rings will transversely use, have the shackle to use irregular problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flange joint class item, it can realize flange joint class item and break out swift, the stable connection between the knot.
The flange connection object item for achieving the purpose comprises a hoisting tool and a flange for vertical hoisting, wherein a plurality of connecting holes are formed in the circumferential direction of the flange, and the axis direction of the connecting holes is the vertical direction; the hoisting tool comprises a connecting plate and a hoisting plate, the connecting plate and the hoisting plate are vertically connected to form a right-angle-shaped component, the connecting plate is detachably connected with the flange, a hoisting hole is formed in the hoisting plate and used for installing a shackle, and the axis direction of the hoisting hole is the horizontal direction; and at least 2 hoisting tools are uniformly arranged in the circumferential direction of the flange.
In one or more embodiments of the flange connection type item, the connection plate has a through hole corresponding to a connection hole of the flange, and the connection plate and the flange are connected by a bolt passing through the connection hole and the through hole.
In one or more embodiments of the flanged article, an inner corner side of the right-angled member faces a radially inner side of the flange.
In one or more embodiments of the flanged connection category, a rib is connected between the connecting plate and the lifting plate.
In one or more embodiments of the flanged connection object, the number of through holes is at least 2.
In one or more embodiments of the flanged connection object, the number of lifting holes is at least 2.
In one or more embodiments of the flanged connection item, a rubber gasket is sandwiched between the flange and the connection plate of the lifting tool.
In one or more embodiments of the flanged connection type item, the connecting plate and the lifting plate are made of steel plates and are welded or integrally formed into the right-angle-shaped member.
Another object of the utility model is to provide a hydroecium circulating water export spare behind conventional island condenser, it includes arbitrary aforementioned flange joint class item.
The beneficial effects of the foregoing technical scheme are:
the conversion of the shackle mounting angle is realized through the connecting plate and the lifting plate which are vertically arranged, so that the stress directions of the shackle and the lifting belt are upward and more reasonable; the hoisting tool detachably connected with the flange is provided with the hoisting hole, so that the hoisting of the flange connection type object item is realized, the problems that the hoisting ring cannot penetrate due to too small flange hole or too thick flange steel plate and no other hoisting point is suitable exist, the hoisting is difficult to hoist are solved, the phenomenon that the hoisting belt is bent and used and does not meet the standard requirement due to the fact that the hoisting belt is bound on the flange is avoided, or the possibility that the object item is damaged due to the fact that the hoisting belt is bound on an electric head, a pneumatic control panel and the like is avoided; the plurality of hoisting tools are arranged in the circumferential direction of the flange connection type item for hoisting, so that the safety and the stability can be improved; the hoisting tool is simple in structure, convenient to obtain materials, capable of being processed by adopting engineering excess materials, convenient to manufacture, quick to connect, safe, reliable, capable of being manufactured in batches according to the size of the flange hole and used repeatedly.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
fig. 1 is a schematic illustration of a flange connection type item according to one or more embodiments.
Figure 2 is a schematic view of a lifting tool according to one or more embodiments.
Figure 3 is a front view of a lifting tool according to one embodiment.
Figure 4 is a left side view of the lifting tool according to the embodiment of figure 3.
Detailed Description
The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and are not intended to limit the scope of the present invention. For example, if a first feature is formed over or on a second feature described later in the specification, this may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact. Additionally, reference numerals and/or letters may be repeated among the various examples throughout this disclosure. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.
It is to be understood that the drawings are designed solely for purposes of illustration and not as an isometric view and should not be construed as limiting the scope of the invention, which is actually claimed. Further, the conversion methods in the different embodiments may be appropriately combined.
As shown in fig. 1 and 2, the flange connection type item includes a flange 1 for vertical lifting, a lifting tool 2, a bolt 3, and a nut (not shown).
The circumference of the flange 1 is provided with a plurality of connecting holes 1a, and the axis direction of the connecting holes 1a is vertical.
The hoisting tool 2 comprises a connecting plate 21 and a hoisting plate 22; the connecting plate 21 is vertically connected with the lifting plate 22 to form a right-angle component; the connecting plate 21 is provided with a through hole 21a corresponding to the connecting hole 1 a; the lifting plate 22 is formed with a lifting hole 22a for attaching a shackle (not shown), and the axial direction of the lifting hole 22a is horizontal.
The bolt 3 passes through the connecting hole 1a and the through hole 21a to detachably connect the hoisting tool 2 with the flange 1, and the bolt 3 is provided with a nut on one side of the flange 1 far away from the hoisting tool 2 to play a role in fastening.
The number of the hoisting tools 2 is at least 2 according to the diameter and the weight of the flange connection type items, and the hoisting tools are uniformly arranged on the periphery of the flange 1 so as to improve the safety and the stability.
In some embodiments, the inner corner side of the right-angled member formed by the connecting plate 21 and the lifting plate 22 faces the radially inner side of the flange 1, so as to leave sufficient operating space between the lifting plate 22 and the flange connection items.
In some embodiments, the lifting plate 22 may also extend along the diameter of the flange 1 and be located in the middle of the connecting plate 21, i.e. both in a T-shaped arrangement.
In some embodiments, at least 1 rib 23 is connected between the connecting plate 21 and the lifting plate 22 to further improve the strength of the lifting tool 2.
In some embodiments, the number of the through holes 21a is at least 2 to further improve the safety and stability of the connection.
In some embodiments, the number of the lifting holes 22a is at least 2, so as to further improve the stability of lifting and the strength of the lifting holes 22 a.
In some embodiments, a rubber gasket (not shown) is sandwiched between the flange 1 and the connecting plate 21 to protect the surface of the flange 1.
In some embodiments, the connecting plate 21, the lifting plate 22, and the rib plate 23 are made of steel plates, and can be processed by using engineering remnants to reduce the cost. The connecting plate 21 and the lifting plate 22 can be welded by two steel plates or formed by bending one steel plate.
In some embodiments, the flange connection item is a conventional island condenser rear water chamber circulating water outlet member.
The use method of the flange connection type item is as follows:
1. selecting a proper number and specification of hoisting tools 2 according to the diameter and weight of the flange connection type item and the size of the connecting hole 1 a;
2. clamping a rubber gasket between the flange 1 and the connecting plate 21, installing the hoisting tools 2 on the flange 1 through bolts 3 and nuts, and enabling a plurality of hoisting tools 2 to be uniformly distributed in the circumferential direction of the flange 1;
3. installing the shackle on the lifting hole 22a and locking, and installing the lifting belt on the shackle for lifting;
4. after the flange connection type items are hoisted in place, the shackle, the hoisting belt and the hoisting tool 2 are disassembled, next installation operation is carried out on the flange connection type items, and the disassembled hoisting tool 2 can be reused.
The safety of the lifting tool 2 is checked in accordance with the embodiments shown in figures 3(a) and 3(b), where the dimensions are given in mm.
In this embodiment, according to the actual requirement of on-site flange connection type item hoisting, the hoisting tool 2 is made of Q235 steel, the connecting plate 21 and the hoisting plate 22 are two steel plates, the ring hoisting plate 22 is adopted for full-circle welding, the welding material meets the relevant standard requirement, and the visual inspection of the welded seam is qualified.
The hoisting tool 2 of the present embodiment is provided with two lifting holes 22a, that is, the hoisting plate 22 can be regarded as being composed of 2 lifting lugs, the following is to carry 5t to each lifting hole 22a for force calculation, the actual carrying of the lifting holes 22a should be calculated by the weight of the suspended item in the actual construction, and then the calculation is carried out by referring to the calculation formula described herein, wherein the calculation steps 1 and 2 only carry out the force calculation on the lifting lug on one side, the size and the force condition of the lifting lug on the other side are the same, and the calculation is not repeated.
1. Calculating the load
The calculated load of the lifting hole 22a is:
Qmeter＝K1K2Q＝1.1×1.2×50000＝66000N
In the formula:
q — load bearing of lifting hole 22a, 5t 50000N;
K1the dynamic load coefficient is generally 1.1;
K2the non-uniformity coefficient, typically taken to be 1.2.
2. Computing lug strength
(1) The maximum tensile stress of the dangerous section side hole of the lifting lug is as follows:
in the formula:
∝i-stress concentration factor, take 2.0;
σsyield strength, 235MPa for the Q235 steel sheet of this example;
b, lifting lug width, in the embodiment, the lifting plate 22 can be regarded as being composed of 2 lifting lugs, so that the lifting lug width is half of the width of the lifting plate 22, namely 160 mm;
d-the diameter of the lifting hole 22a, in this embodiment 70 mm;
the thickness of the lifting lug is 24mm in the embodiment.
(2) The maximum tensile stress of the inner side hole edge of the vertical section of the lifting lug is as follows:
in the formula:
r is the effective radius of the outer edge of the lifting lug, and in the embodiment, 70mm is taken.
(3) The average compressive stress at the lifting hole 22a is:
and (4) conclusion: the lug intensity satisfies the safety requirement.
3. Accounting for weld strength
According to the calculation of the double-sided fillet weld, the height of the weld corner is 10mm, and an E5015 welding rod is adopted. According to the design value of the tensile strength of the fillet weld of the Q235 steel in the table 3.4.1-3 of GB 50017-2003 Steel Structure design Specification, the design value is as follows:
the weld strength is:
in the formula:
σf-stress perpendicular to the direction of the weld;
n-stress of weld, N ═ 2QMeter＝2×66000＝132000N；
heCalculated thickness of fillet weld, he＝0.7hf，hfIs the size of the weld corner;
lw-calculating the length of the fillet weld, subtracting 2h from the actual length of the fillet weldf；
βfFor structures directly subjected to dynamic loads, betaf＝1.0。
And (4) conclusion: the strength of the welding seam meets the safety requirement.
The flange connection items realize the conversion of shackle mounting angles through the connecting plate 21 and the lifting plate 22 which are vertically arranged, so that the stress directions of the shackle and the lifting belt are upward and more reasonable; the hoisting holes 22a are formed in the hoisting tool 2 detachably connected with the flange 1, so that the hoisting of the flange connection type object is realized, the problems that the hoisting of the flange connection type object is difficult due to the fact that the flange hole is too small or the flange steel plate is too thick, the hoisting ring cannot penetrate into the flange connection type object and no other hoisting point is suitable are solved, the phenomenon that the hoisting belt is bent and used and does not meet the standard requirement due to the fact that the hoisting belt is bound on the flange is avoided, or the possibility that the object is damaged due to the fact that the hoisting belt is bound on an electric head, a pneumatic control panel and the like is avoided; the plurality of hoisting tools 2 are uniformly arranged in the circumferential direction of the flange 1 for hoisting, so that the safety and the stability can be improved; the hoisting tool 2 is simple in structure, convenient to obtain materials, capable of being processed by adopting engineering excess materials, convenient to manufacture, quick to connect, safe, reliable, capable of being manufactured in batches according to the size of the flange hole and used repeatedly.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.
Claims (9)
1. The flange is connected with an object item and comprises a hoisting tool and a flange for vertical hoisting, and is characterized in that,
a plurality of connecting holes are formed in the circumferential direction of the flange, and the axis direction of each connecting hole is vertical;
the hoisting tool comprises a connecting plate and a hoisting plate, the connecting plate and the hoisting plate are vertically connected to form a right-angle-shaped component, the connecting plate is detachably connected with the flange, a hoisting hole is formed in the hoisting plate and used for installing a shackle, and the axis direction of the hoisting hole is the horizontal direction;
and at least 2 hoisting tools are uniformly arranged in the circumferential direction of the flange.
2. The flange connection kind item of claim 1, wherein the connection plate has through holes corresponding to the connection holes of the flange, and the connection plate and the flange are connected by bolts passing through the connection holes and the through holes.
3. The flange connection category of claim 1, wherein an inner angular side of the right-angled member is directed radially inward of the flange.
4. A flanged connection according to claim 1, characterized in that a rib is connected between the connection plate and the lifting plate.
5. An item of flange connection according to claim 2, characterised in that the number of through-holes is at least 2.
6. A flanged connection item according to claim 1, characterized in that the number of lifting holes is at least 2.
7. A flanged connection-type item according to claim 1, wherein a rubber gasket is sandwiched between the flange and the attachment plate of the lifting tool.
8. The flange connection of claim 1, wherein the connecting plate and the lifting plate are made of steel plate and are welded or integrally formed as the right-angle member.
9. The circulating water outlet member of the rear water chamber of the conventional island condenser is characterized by comprising the flange connection type item of any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455832.3U CN212050187U (en) | 2020-04-01 | 2020-04-01 | Flange connection type item and circulating water outlet part of rear water chamber of conventional island condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455832.3U CN212050187U (en) | 2020-04-01 | 2020-04-01 | Flange connection type item and circulating water outlet part of rear water chamber of conventional island condenser |
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| CN212050187U true CN212050187U (en) | 2020-12-01 |
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| CN202020455832.3U Active CN212050187U (en) | 2020-04-01 | 2020-04-01 | Flange connection type item and circulating water outlet part of rear water chamber of conventional island condenser |
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