CN202511944U - Two-segment type water-pressure sealed bulging piston for large-caliber collecting box - Google Patents
Two-segment type water-pressure sealed bulging piston for large-caliber collecting box Download PDFInfo
- Publication number
- CN202511944U CN202511944U CN2012200601902U CN201220060190U CN202511944U CN 202511944 U CN202511944 U CN 202511944U CN 2012200601902 U CN2012200601902 U CN 2012200601902U CN 201220060190 U CN201220060190 U CN 201220060190U CN 202511944 U CN202511944 U CN 202511944U
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- CN
- China
- Prior art keywords
- arm
- ring
- collection case
- ring seal
- collecting box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model provides a two-segment type water-pressure sealed bulging piston of a large-caliber collecting box. According to the two-segment type water-pressure sealed bulging piston of the large-caliber collecting box, the good sealing effect is guaranteed, the quality of the outer end face of the collecting box is not influenced, the potential safety hazard is avoided, and the bulging piston is convenient for follow-up disassembly and less in working capacity. The two-segment type water-pressure sealed bulging piston comprises a collecting box, wherein the inner walls of orifices at two ends of the collecting box comprise machined groove faces and interior unmachined groove faces. The two-segment type water-pressure sealed bulging piston is characterized by comprising pull plates used in pairs, wherein the two pull plates are respectively arranged at the orifices at two ends of the collecting box, the corresponding circumferential position of the two pull plates is evenly provided with guide holes, the guide holes are arranged outside the collecting box, pull rods penetrate through the guide holes at the corresponding position of the two pull plates, and two opposite surfaces of the two pull plates are respectively provided with a seal structure, each seal structure specifically comprises a guide plate, a press ring, an internal seal ring and an external seal ring, each guide plate is of a ring-shaped plate, each guide plate is fastened at each pull plate, and one sides of each internal seal ring and each external seal ring are tightly adhered to the guide plates.
Description
Technical field
The utility model relates to the hydraulic testing sealing frock field of heavy caliber collection case or pipe, is specially the bloated plug of a kind of heavy caliber collection case two-part hydraulic pressure sealing.
Background technology
After the assembling of waste heat boiler heating surface module is accomplished, need carry out the hydraulic testing, with the whole dress weldering quality of inspection module.In the hydraulic testing process, need surpass φ 300mm to caliber in such heating surface module, the collection case two ends that maximum caliber reaches φ 660x34 specification seal.Prior art is to such heavy caliber collection case sealed at both ends, and directly mouth of pipe place welding shrouding seals at two ends in employing.The subject matter of this kind form is: when dress sealing plate; Because sweating heat stress causes postwelding near collection case body welding heat affected zone, to produce micro-crack probably; Have a strong impact on the quality of such pressure-containing parts; Stay potential safety hazard, and dress sealing plate and follow-up dismounting, polishing all need expend bigger workload.
Summary of the invention
To the problems referred to above, the utility model provides a kind of heavy caliber collection case two-part hydraulic pressure sealing bloated plug, and it does not influence the quality of the outer face of collection case when guaranteeing that good sealing effectiveness is arranged, do not stay potential safety hazard, and follow-up dismounting is convenient, workload is little.
A kind of heavy caliber collection case two-part hydraulic pressure sealing is expanded and is filled in, and its technical scheme is such: it comprises the collection case, and the two ends mouth of pipe inwall of said collection case comprises finished edge face and inner green surface; It is characterized in that: it comprises the arm-tie of paired use, and two said arm-ties lay respectively at the mouth of pipe place, two ends of said collection case, and the corresponding circle side face position of two said arm-ties is evenly equipped with pilot hole; Said pilot hole is positioned at the outside of said collection case, and pull bar runs through the said pilot hole of the correspondence position of two said arm-ties, and the forward surface of two said arm-ties is respectively arranged with hermetically-sealed construction; Said hermetically-sealed construction specifically comprises guide plate, trim ring, built-in O-ring seal, external O-ring seal, and said guide plate is an annular slab, and said guide plate is anchored on said arm-tie; One end face of said built-in O-ring seal, external O-ring seal is close to said guide plate; Said external O-ring seal is positioned at the outside of said built-in O-ring seal, and the outer ring surface of the said built-in O-ring seal during pressurization is close to the mouth of pipe inwall of said collection case, and the outer wall of the finished edge face of said collecting box pipe mouth is close in the other end of the said external O-ring seal during pressurization; Said trim ring is positioned at the center of said arm-tie; Said trim ring is circular, and said trim ring connects said arm-tie through attachment bolt, an end face of said trim ring pressing the other end of said built-in O-ring seal away from circle centre position; Wherein a said arm-tie is provided with the water inlet that connects said trim ring; Water inlet pipe runs through said water inlet, and the said arm-tie of another piece is provided with the water delivering orifice that connects to corresponding said trim ring, and rising pipe runs through said water delivering orifice; The arranged outside of the corresponding two said arm-ties of said pull bar has gland nut, and said gland nut is being pressed said arm-tie respectively.
It is further characterized in that: between said built-in O-ring seal and the said trim ring packing ring is housed;
Be provided with thick washer between said gland nut and the said arm-tie, said thick washer is set in said pull bar, and said gland nut is set in said pull bar, the be threaded external thread of said pull bar of said gland nut;
The arranged outside of said guide plate has seam, and said external ring set is seam in the said guide plate outside;
Said water inlet pipe, rising pipe are adorned respectively and are welded on the corresponding said trim ring;
The said attachment bolt not monolateral gap of the finished edge face of the said built-in O-ring seal during pretension and collecting box pipe mouth is 1.5-2mm;
Said attachment bolt is said external O-ring seal during pretension and the monolateral gap 5mm of the inner green surface of collection case not;
Said rising pipe is the rising pipe of band elbow.
After adopting the said structure of the utility model; Hang two arm-ties to collecting case two mouth of pipe places with driving or manual simplified suspender during installation; Pull bar runs through the said pilot hole of the correspondence position of two said arm-ties; Through two arm-ties in gland nut location, through the pretension attachment bolt said built-in O-ring seal is carried out pretension afterwards then, make built-in O-ring seal produce sealing at machine work groove face near the mouth of pipe; After the pressurization; Collection case inside water pressure acts on the said trim ring, makes built-in O-ring seal produce bigger compression to circumferential expansion, also forms sealing at the inside green surface that collects case; It is when guaranteeing that good sealing effectiveness is arranged; Do not influence the quality of the outer face of collection case, do not stay potential safety hazard, and follow-up dismounting is convenient, workload is little.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation enlarged drawing (removing arm-tie, pull bar, trim ring) at A place among Fig. 1.
Embodiment
See Fig. 1, Fig. 2, it comprises collection case 1, and the two ends mouth of pipe inwall of collection case 1 comprises finished edge face 3 and inner green surface 4; Two arm-ties 5,6 lay respectively at the mouth of pipe place, two ends of collection case 1, and the corresponding circle side face position of two arm-ties 5,6 is evenly equipped with six pilot holes 7, and pilot hole 7 is positioned at the outside of collection case 1; Pull bar 8 runs through the pilot hole 7 of the correspondence position of two arm-ties 5,6; The forward surface of two arm-ties 5,6 is respectively arranged with hermetically-sealed construction, and hermetically-sealed construction specifically comprises guide plate 9, trim ring 10, built-in O-ring seal 11, external O-ring seal 12, and guide plate 9 is an annular slab; Guide plate 9 is anchored on arm-tie 5,6; One end face of built-in O-ring seal 11, external O-ring seal 12 is close to guide plate 9, and external O-ring seal 12 is positioned at the outside of built-in O-ring seal 11, and the outer ring surface of the built-in O-ring seal 11 during pressurization is close to the finished edge face 3 and inner green surface 4 of the mouth of pipe inwall that collects case; The outer wall of the finished edge face 3 of collecting box pipe mouth is close in the other end of the external O-ring seal 12 during pressurization; Trim ring 10 is positioned at the center of arm-tie 5,6, and trim ring 10 is circular, and trim ring 10 connects arm-tie 5,6 through attachment bolt 13; One end face of trim ring 10 pressing the other end of built-in O-ring seal 11 away from circle centre position, between built-in O-ring seal 11 and the trim ring 10 packing ring 18 is housed;
Wherein an arm-tie 5 is provided with the water inlet 14 that connects trim ring 10; Water inlet pipe 15 runs through water inlet 14, and another piece arm-tie 6 is provided with the water delivering orifice 16 that connects corresponding trim ring 10, and rising pipe 2 runs through water delivering orifice 16; The arranged outside of pull bar 8 corresponding two arm-ties 5,6 has gland nut 17; Gland nut 17 is being pressed arm-tie 5,6 respectively, gland nut 17 and arm-tie 5, is provided with thick washer 19 between 6, and thick washer 19 is set in pull bar 8; Gland nut 17 is set in pull bar 8, the be threaded external thread of pull bar 8 of gland nut 17;
The arranged outside of guide plate 9 has seam 20, and external O-ring seal 12 is set in the seam 20 in guide plate 9 outsides;
The attachment bolt 13 not monolateral gap of the built-in O-ring seal during pretension 11 and the finished edge face 3 of collecting box pipe mouth is 1.5-2mm;
Rising pipe 2 is the rising pipe of band elbow.
Its principle of work is following: hang the suspension ring (do not draw among the figure, belong to existing mature technology) on the arm-tie 5,6 with driving or manual simplified suspender during installation, winch to the mouth of pipe place, two ends of collection case 1; The direction that makes rising pipe 2 uses pull bar 8 to place in the corresponding pilot hole 7 of two arm-ties 5,6 straight up, loads onto thick washer 19; Tighten pull bar 8 two ends gland nuts 17 then gradually; Owing to use six roots of sensation pull bar altogether, be diagonal line when twisting gland nut 17 and tighten gradually, and adjust; Make built-in O-ring seal 11 get in the mouth of pipe smoothly; External O-ring seal 12 is pressed on the pipe end groove face of collection case 1, on the pipe end face of collection case 1, forms auxiliary seal, external O-ring seal 12 has also played in installation process protects the finished edge face 3 that collects case 1 to prevent the effect that breaks.
The attachment bolt 13 that next step tightens trim ring 10 is diagonal line and tightens gradually, makes it that certain expansion arranged to built-in O-ring seal 11 pretensions, make its finished edge face 3 to collection case 1 form sealing, thereby hydraulic pressure expansion plug reaches the preceding seal operation state of pressurization.When beginning was installed, the attachment bolt 12 at this place must unclamp, and can not twist too tightly, otherwise built-in O-ring seal pretension after expansion causes difficult installation.
In the water inlet of water inlet pipe 15 water receiving press pumps, in collection case 1 the injecting process, rising pipe 2 is opened exhaust; When sealing rising pipe with little bloated plug during water outlet in the rising pipe 2, continue the water pump pressurization, collection; 1 internal pressure rises gradually; Promote the built-in O-ring seal 11 of trim ring 10 compressions and make it, also form sealing, make sealing effectiveness reliable and stable at the inside green surface 4 that collects case 1 to circumferential expansion.
Claims (8)
1. a heavy caliber collection case two-part hydraulic pressure sealing is expanded and is filled in, and it comprises the collection case, and the two ends mouth of pipe inwall of said collection case comprises finished edge face and inner green surface; It is characterized in that: it comprises the arm-tie of paired use, and two said arm-ties lay respectively at the mouth of pipe place, two ends of said collection case, and the corresponding circle side face position of two said arm-ties is evenly equipped with pilot hole; Said pilot hole is positioned at the outside of said collection case, and pull bar runs through the said pilot hole of the correspondence position of two said arm-ties, and the forward surface of two said arm-ties is respectively arranged with hermetically-sealed construction; Said hermetically-sealed construction specifically comprises guide plate, trim ring, built-in O-ring seal, external O-ring seal, and said guide plate is an annular slab, and said guide plate is anchored on said arm-tie; One end face of said built-in O-ring seal, external O-ring seal is close to said guide plate; Said external O-ring seal is positioned at the outside of said built-in O-ring seal, and the outer ring surface of the said built-in O-ring seal during pressurization is close to the mouth of pipe inwall of said collection case, and the outer wall of the finished edge face of said collecting box pipe mouth is close in the other end of the said external O-ring seal during pressurization; Said trim ring is positioned at the center of said arm-tie; Said trim ring is circular, and said trim ring connects said arm-tie through attachment bolt, an end face of said trim ring pressing the other end of said built-in O-ring seal away from circle centre position; Wherein a said arm-tie is provided with the water inlet that connects said trim ring; Water inlet pipe runs through said water inlet, and the said arm-tie of another piece is provided with the water delivering orifice that connects to corresponding said trim ring, and rising pipe runs through said water delivering orifice; The arranged outside of the corresponding two said arm-ties of said pull bar has gland nut, and said gland nut is being pressed said arm-tie respectively.
2. a kind of heavy caliber collection case two-part hydraulic pressure sealing according to claim 1 is expanded and is filled in, and it is characterized in that: between said built-in O-ring seal and the said trim ring packing ring is housed.
3. a kind of heavy caliber collection case two-part hydraulic pressure sealing according to claim 1 is expanded and is filled in; It is characterized in that: be provided with thick washer between said gland nut and the said arm-tie; Said thick washer is set in said pull bar; Said gland nut is set in said pull bar, the be threaded external thread of said pull bar of said gland nut.
4. a kind of heavy caliber collection case two-part hydraulic pressure sealing according to claim 1 is expanded and is filled in, and it is characterized in that: the arranged outside of said guide plate has seam, and said external ring set is seam in the said guide plate outside.
5. a kind of heavy caliber collection case two-part hydraulic pressure sealing according to claim 1 is expanded and is filled in, and it is characterized in that: said water inlet pipe, rising pipe are adorned respectively and be welded on the corresponding said trim ring.
6. a kind of heavy caliber collection case two-part hydraulic pressure sealing according to claim 1 plug that expands is characterized in that: the said attachment bolt not monolateral gap of the finished edge face of the said built-in O-ring seal during pretension and collecting box pipe mouth is 1.5 mm-2mm.
7. a kind of heavy caliber collection case two-part hydraulic pressure sealing according to claim 1 plug that expands is characterized in that: said attachment bolt is the said external O-ring seal and the monolateral gap 5mm of the inner green surface of collection case during pretension not.
8. a kind of heavy caliber collection case two-part hydraulic pressure sealing according to claim 1 is expanded and is filled in, and it is characterized in that: said rising pipe is the rising pipe of band elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200601902U CN202511944U (en) | 2012-02-23 | 2012-02-23 | Two-segment type water-pressure sealed bulging piston for large-caliber collecting box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200601902U CN202511944U (en) | 2012-02-23 | 2012-02-23 | Two-segment type water-pressure sealed bulging piston for large-caliber collecting box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202511944U true CN202511944U (en) | 2012-10-31 |
Family
ID=47064422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200601902U Withdrawn - After Issue CN202511944U (en) | 2012-02-23 | 2012-02-23 | Two-segment type water-pressure sealed bulging piston for large-caliber collecting box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202511944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589812A (en) * | 2012-02-23 | 2012-07-18 | 无锡华光锅炉股份有限公司 | Two-segment type water-pressure sealed bulging piston for large-caliber collecting box |
-
2012
- 2012-02-23 CN CN2012200601902U patent/CN202511944U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589812A (en) * | 2012-02-23 | 2012-07-18 | 无锡华光锅炉股份有限公司 | Two-segment type water-pressure sealed bulging piston for large-caliber collecting box |
| CN102589812B (en) * | 2012-02-23 | 2014-03-05 | 无锡华光锅炉股份有限公司 | Two-segment type water-pressure sealed bulging piston for large-caliber collecting box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20140305 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20140305 |