CN207555021U - Resistant to sulfuric acid dew point corrosion ND steel seamless pipes - Google Patents
Resistant to sulfuric acid dew point corrosion ND steel seamless pipes Download PDFInfo
- Publication number
- CN207555021U CN207555021U CN201721338662.5U CN201721338662U CN207555021U CN 207555021 U CN207555021 U CN 207555021U CN 201721338662 U CN201721338662 U CN 201721338662U CN 207555021 U CN207555021 U CN 207555021U
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- connecting flange
- limited post
- tube body
- grab
- hole
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Abstract
The utility model is related to seamless steel pipe technical fields,More particularly, to a kind of resistant to sulfuric acid dew point corrosion ND steel seamless pipes,The tube body of connecting flange is respectively equipped with including both ends,Further include grab,Limited post,Positioning pin,Baffle ring and spring,Through-hole is offered on the connecting flange of described tube body one end,Location hole is offered on the connecting flange of the tube body other end,The through-hole is arranged in a one-to-one correspondence with the location hole,The utility model resistant to sulfuric acid dew point corrosion with ND steel seamless pipe when in use,During adjacent company tube body connection,It is corresponding with the connecting flange on later section tube body by the connecting flange on previous section tube body,Card slot on previous section connecting flange is corresponding with the limited post of grab on later section connecting flange,So that limited post is inserted into card slot,Positioning pin is inserted into through-hole and location hole again,One finally is applied to positioning pin and limited post by baffle ring and pre-tightens locking power,Prevent positioning pin and limited post from loosening.
Description
Technical field
The utility model is related to seamless steel pipe technical fields, seamless with ND steel more particularly, to a kind of resistant to sulfuric acid dew point corrosion
Pipe.
Background technology
Anti-corrosion seamless steel tube is widely used mutually to be interconnected in occasions, existing seamless steel pipes such as medium transmission by flange
It connects, is only fixedly connected always by bolt between two flanges, it is vibrated when factors influence in seamless steel pipe, it is easy to Jiu Huizao
It loosens into bolt, is detached from so as to cause between seamless steel pipe, cause heavy losses, increase production cost.
Utility model content
The technical problems to be solved in the utility model is：It is connected with each other to solve existing seamless steel pipe by flange, two
It is only fixedly connected always by bolt between flange, it is vibrated when factors influence in seamless steel pipe, it is easy to will result in spiral shell
Bolt loosens, and the problem of so as to cause being detached between seamless steel pipe, now provides a kind of resistant to sulfuric acid dew point corrosion ND steel seamless pipes.
Technical solution is used by the utility model solves its technical problem：A kind of resistant to sulfuric acid dew point corrosion with ND steel without
Slit-tube is respectively equipped with the tube body of connecting flange including both ends, further includes grab, limited post, positioning pin, baffle ring and spring, described
Through-hole is offered on the connecting flange of tube body one end, location hole is offered on the connecting flange of the tube body other end, it is described logical
Hole is arranged in a one-to-one correspondence with the location hole, and the grab is rotatably arranged on the connecting flange equipped with location hole, the grab
It is arranged in a one-to-one correspondence with the location hole, the grab has linkage section and limiting section, the linkage section rotation setting connection method
Lan Shang, the limiting section are inclined at one end of linkage section, are set on the connecting flange far from grab one end on the tube body
There is card slot, the threaded one end of the limited post is connected in the limiting section, and the other end and the card slot of the limited post match
And be arranged in the card slot, the threaded one end of the positioning pin is connected on the limited post, the other end of the positioning pin
It across the through-hole and is arranged in the location hole, described grab one end offers sliding slot, the sliding slot and the baffle ring phase
Matching, the spring are arranged between the baffle ring and the sliding slot, and the baffle ring is contacted with the positioning pin and limited post.It is logical
Cross the connecting flange of two tube bodies is corresponding, positioned at it is previous section tube body connecting flange on card slot correspond to later section connection method
Grab on orchid rotates the limited post on grab so that one end of limited post is inserted into card slot, is rotated further by determining on limited post
Position pin so that positioning pin is inserted into through-hole and location hole, and last positioning pin and limited post are contacted with baffle ring, and baffle ring is pushed to exist
It slides in sliding slot, so that spring is extruded and applies a reversed pretightning force to positioning pin and limited post, effectively prevent
Positioning pin and limited post loosen.
For the ease of being docked between two tube bodies, further, one of connecting flange of two connecting flanges
On offer locating slot, another connecting flanges of two connecting flanges is equipped with locating piece, the locating slot with it is described
Locating piece matches, and the location hole is arranged in the locating slot.By on the connecting flange of tube body set locating slot with
Locating piece coordinates so that two tube bodies when mounted can be more convenient.
The beneficial effects of the utility model are：The utility model resistant to sulfuric acid dew point corrosion with ND steel seamless pipe when in use,
It is corresponding with the connecting flange on later section tube body by the connecting flange on previous section tube body during adjacent company tube body connection,
Card slot on previous section connecting flange is corresponding with the limited post of grab on later section connecting flange so that limited post is inserted into
It is inserted into through-hole and location hole into card slot, then by positioning pin, one finally is applied in advance to positioning pin and limited post by baffle ring
Tight locking power, prevents positioning pin and limited post from loosening, avoids existing seamless steel pipe and be connected with each other by flange, between two flanges
Only it is fixedly connected always by bolt, it is vibrated when factors influence in seamless steel pipe, it is easy to it will result in bolt and loosen, from
And the problem of causing to be detached between seamless steel pipe, causing heavy losses, increase production cost.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the front view of the utility model；
Fig. 2 is the partial enlarged view of A in Fig. 1.
In figure：1st, tube body, 2, connecting flange, 201, through-hole, 202, location hole, 203, locating slot, 204, locating piece, 205,
Card slot, 3, grab, 301, linkage section, 302, limiting section, 303, sliding slot, 4, limited post, 5, positioning pin, 6, baffle ring, 7, spring.
Specific embodiment
Presently in connection with attached drawing, the utility model is described in more detail.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows the composition related with the utility model.
Embodiment
As shown in Figs. 1-2, a kind of resistant to sulfuric acid dew point corrosion ND steel seamless pipes, connecting flange 2 is respectively equipped with including both ends
Tube body 1, further include grab 3, limited post 4, positioning pin 5, baffle ring 6 and spring 7, opened on the connecting flange 2 of described 1 one end of tube body
Equipped with through-hole 201, positioning is offered on the both ends of connecting flange 2, the connecting flange 2 of 1 other end of tube body by 201
Hole 202, the through-hole 201 are arranged in a one-to-one correspondence with the location hole 202, and the grab 3 is rotatably arranged on equipped with location hole 202
Connecting flange 2 on, the grab 3 is arranged in a one-to-one correspondence with the location hole 202, the grab 3 have linkage section 301 and limit
Position section 302, the linkage section 301 are rotated by axis pin on setting connecting flange 2, and the limiting section 302 is inclined at connection
One end of section 301, the connecting flange 2 far from 3 one end of grab is provided with card slot 205 on the tube body 1, and the one of the limited post 4
End is threaded in the limiting section 302, and the other end of the limited post 4 passes through the limiting section 302, the limited post 4
The other end and card slot 205 match and be arranged in the card slot 205, the threaded one end of the positioning pin 5 is connected to described
On limited post 4, the other end of the positioning pin 5 passes through the through-hole 201 and is arranged in the location hole 202, the grab 3
One end offers sliding slot 303, and sliding slot 303 is located at the one end of the limiting section 302 of grab 3 far from connecting flange 2, the sliding slot 303
Match with the baffle ring 6, the spring 7 is arranged between the baffle ring 6 and the sliding slot 303, the baffle ring 6 with it is described fixed
Position pin 5 and limited post 4 contact, that is, positioning pin 5 and limited post 4 are both provided with the limiting shaft shoulder close to one end of baffle ring 6, and
It is contacted by the limiting shaft shoulder of positioning pin 5 and the limiting shaft shoulder of limited post 4 with baffle ring 6, baffle ring is both provided on each grab 3
6, baffle ring 6 is arranged concentrically with through-hole 201.
Locating slot 203, two connection methods are offered on one of connecting flange 2 of two connecting flanges 2
Another connecting flange 2 of orchid 2 is equipped with locating piece 204, and the locating slot 203 matches with the locating piece 204, described fixed
Position hole 202 is arranged in the locating slot 203.
With ND steel seamless pipe when mounted, concrete operation step is as follows for above-mentioned resistant to sulfuric acid dew point corrosion：First by previous section
The locating piece 204 that locating slot 203 on the connecting flange 2 of tube body 1 is directed at connecting flange 2 on later section tube body 1 is put into, and is made simultaneously
It is corresponding with location hole 202 to obtain through-hole 201, is rotated further by grab 3 so that the alignment card of limited post 4 in 3 upper limit section 302 of grab
Slot 205, then rotary spacing column 4 so that one end of limited post 4 passes through through-hole 201 and is inserted into location hole 202, positioning pin 5
One end and one end of limited post 4 contacted with baffle ring 6 so that baffle ring 6 slides in sliding slot 303, so as to which spring 7 be squeezed,
Spring 7 applies negative side's pretightning force to limited post 4 and positioning pin 5, and the peace between tube body 1 can be installed according to above-mentioned steps
Dress；Positioned between two connecting flanges 2 by limited post 4 first, by positioning pin 5 to two connecting flanges 2 it
Between locked, a reversed pretightning force is applied to limited post 4 and positioning pin 5 by baffle ring 6 and spring 7, so as to be so that calmly
Position pin 5 and limited post 4 will not be vibrated and loosen, stable connection is reliable between ensure that tube body 1.
The above-mentioned desirable embodiment according to the utility model is enlightenment, passes through above-mentioned description, relevant staff
Various changes and amendments can be carried out in the range of without departing from this item utility model technological thought completely.This item is practical
Novel technical scope is not limited to the content on specification, it is necessary to determine that its is technical according to right
Range.
Claims (2)
1. a kind of resistant to sulfuric acid dew point corrosion ND steel seamless pipes are respectively equipped with the tube body (1) of connecting flange (2) including both ends,
It is characterized in that：Grab (3), limited post (4), positioning pin (5), baffle ring (6) and spring (7) are further included, described tube body (1) one end
Through-hole (201) is offered on connecting flange (2), location hole is offered on the connecting flange (2) of tube body (1) other end
(202), the through-hole (201) is arranged in a one-to-one correspondence with the location hole (202), and the grab (3) is rotatably arranged on equipped with fixed
On the connecting flange (2) in position hole (202), the grab (3) is arranged in a one-to-one correspondence with the location hole (202), the grab (3)
With linkage section (301) and limiting section (302), on linkage section (301) the rotation setting connecting flange (2), the limiting section
(302) one end of linkage section (301) is inclined at, on the tube body (1) on the connecting flange (2) far from grab (3) one end
Card slot (205) is provided with, the threaded one end of the limited post (4) is connected on the limiting section (302), the limited post (4)
The other end and card slot (205) match and be arranged in the card slot (205), the threaded one end connection of the positioning pin (5)
On the limited post (4), the other end of the positioning pin (5) passes through the through-hole (201) and is arranged on the location hole
(202) in, described grab (3) one end offers sliding slot (303), and the sliding slot (303) matches with the baffle ring (6), described
Spring (7) is arranged between the baffle ring (6) and the sliding slot (303), the baffle ring (6) and the positioning pin (5) and limiting
Column (4) contacts.
2. resistant to sulfuric acid dew point corrosion according to claim 1 ND steel seamless pipes, it is characterised in that：Two connection methods
Locating slot (203), another connection of two connecting flanges (2) are offered on one of connecting flange (2) of blue (2)
Flange (2) is equipped with locating piece (204), and the locating slot (203) matches with the locating piece (204), the location hole
(202) it is arranged in the locating slot (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338662.5U CN207555021U (en) | 2017-10-17 | 2017-10-17 | Resistant to sulfuric acid dew point corrosion ND steel seamless pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338662.5U CN207555021U (en) | 2017-10-17 | 2017-10-17 | Resistant to sulfuric acid dew point corrosion ND steel seamless pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207555021U true CN207555021U (en) | 2018-06-29 |
Family
ID=62673396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721338662.5U Active CN207555021U (en) | 2017-10-17 | 2017-10-17 | Resistant to sulfuric acid dew point corrosion ND steel seamless pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207555021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953790A (en) * | 2018-08-24 | 2018-12-07 | 中国航发沈阳发动机研究所 | A kind of anti-pipe fitting release |
| CN111425643A (en) * | 2020-04-01 | 2020-07-17 | 冠博生物环保科技(辽宁)有限公司 | Valve and fermentation system |
-
2017
- 2017-10-17 CN CN201721338662.5U patent/CN207555021U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953790A (en) * | 2018-08-24 | 2018-12-07 | 中国航发沈阳发动机研究所 | A kind of anti-pipe fitting release |
| CN111425643A (en) * | 2020-04-01 | 2020-07-17 | 冠博生物环保科技(辽宁)有限公司 | Valve and fermentation system |
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