CN203718252U - Special expansion joint for inclined pipe of boiler - Google Patents
Special expansion joint for inclined pipe of boiler Download PDFInfo
- Publication number
- CN203718252U CN203718252U CN201420105214.0U CN201420105214U CN203718252U CN 203718252 U CN203718252 U CN 203718252U CN 201420105214 U CN201420105214 U CN 201420105214U CN 203718252 U CN203718252 U CN 203718252U
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- plate
- sealing plate
- sealing
- expansion joint
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Abstract
The utility model relates to a special expansion joint for an inclined pipe of a boiler. The special expansion joint comprises a left joint pipe and a right joint pipe; a left annular plate and a left sealing plate are arranged on the bilateral sides of the left joint pipe respectively; a right sealing plate and a right annular plate are arranged on the bilateral sides of the right joint pipe respectively; the left annular plate is connected with the right annular plate through a non-metallic flexible ring belt in a sealing mode to enable the left sealing plate and the right sealing plate to be matched with each other to form a sliding sealing surface; a sealing ring is arranged between the left sealing plate and the right sealing plate; the left annular plate and the right annular plate are arranged to be in oval shapes; the left sealing plate is provided with a plurality of screws which are used for compressing the sealing ring through a spring and enabling the sealing ring to be closely combined with the right sealing plate. According to the special expansion joint for the inclined pipe of the boiler, the left annular plate and the right annular plate are provided with elastic ear plates to enable the left sealing plate and the right sealing plate to maintain the stable distance and accordingly the sealing of the expansion joint can be stable and the sealing effect can be good; the abrasion of the flexible ring belt cannot be caused by reciprocating motion of the left annular plate and the right annular plate during usage and accordingly the service life of the product is extended; the axial compensation is large, the occupied area is small, and installation and maintenance are convenient; the sealing effect is good, the high temperature resistance is good, and the heat insulation effect is good.
Description
Technical field
The utility model relates to pipeline compensator, and especially a kind of axial displacement compensation is large, high temperature resistant, and the special-purpose expansion joint of the good boiler inclined tube of heat insulation effect.
Background technique
Existing boiler generally all needs to use expansion joint for pipeline in installation process.The joint of boiler tubing and furnace bottom or body of heater outer structural member, conventionally because high temperature or temperature variation cause, expand with heat and contract with cold, and boiler furnace sedimentation causes larger displacement amount.At present, the expansion joint for pipeline that existing boiler adopts generally has slip-type expansion joint or steel plate astragal compensator.The requirements of installation space of slip-type expansion joint is higher, often inapplicable for the connecting tube of boiler furnace; In use, due to the fore and aft motion of expansion joint for pipeline, the heat insulation effect of its thermal insulation layer tends to decline larger steel plate astragal compensator.
Model utility content
The purpose of this utility model is to provide that a kind of sealing effect is better, longer service life, and axial displacement compensation is large, high temperature resistant, and the special-purpose expansion joint of the good boiler inclined tube of heat insulation effect.
The purpose of this utility model is achieved by the following technical solution:
The special-purpose expansion joint of boiler inclined tube, comprise left adapter and right adapter, the both sides of described left adapter are respectively equipped with left ring flat-plate and left sealing plate, the both sides of right adapter are respectively equipped with right sealing plate and right ring flat-plate, described left ring flat-plate is formed and is tightly connected by nonmetal flexible astragal and right ring flat-plate, make left sealing plate complement each other to form and can produce in any direction the sliding sealing surface of displacement with right sealing plate, left sealing plate is provided with seal ring with between right sealing plate simultaneously.
As optimal technical scheme of the present utility model, described left adapter, right adapter, left ring flat-plate, right ring flat-plate, left sealing plate, right sealing plate is made as respectively circle or ellipse.
As optimal technical scheme of the present utility model, described left sealing plate outer surface be laid with some screw rods, described screw rod by elastic member by seal ring be pressed on left sealing plate outer surface, make simultaneously seal ring and right sealing plate sealing surface combine closely.
As optimal technical scheme of the present utility model, the through hole that described screw rod is provided with by seal ring and left sealing plate connect, and between screw rod and seal ring, are provided with spring.
As optimal technical scheme of the present utility model, described left ring flat-plate and right ring flat-plate are respectively equipped with left otic placode and the auris dextra plate that can produce resiliently deformable, be connected and fix between left otic placode and auris dextra plate by pull bar with nut.
As optimal technical scheme of the present utility model, between described nonmetal flexible astragal and left adapter and right adapter, be filled with high-temperature-resistant thermal-insulation material.
As optimal technical scheme of the present utility model, described high-temperature-resistant thermal-insulation material comprises aluminum silicate fiber.
As optimal technical scheme of the present utility model, described nonmetal flexible astragal comprises fluorine rubber astragal.
As optimal technical scheme of the present utility model, described seal ring is ceramic fiber seal ring.
As optimal technical scheme of the present utility model, the angle between the axis of described boiler inclined tube and left adapter or right adapter axis is less than 90 degree.
The beneficial effects of the utility model are: with respect to prior art, left ring flat-plate of the present utility model and right ring flat-plate are respectively equipped with the left otic placode of elasticity and auris dextra plate, between left otic placode and auris dextra plate, by pull bar, be connected with nut, make left and right sealing plate spacing in movement process, remain unchanged; Simultaneously at the uniform some screw rods of left sealing plate, screw rod by spring by seal ring be pressed on left sealing plate outer surface, and make seal ring and right sealing plate sealing surface combine closely, thereby make the sealing of the utility model expansion joint more stable, sealing effect is better.
The left adapter of the utility model, right adapter, left ring flat-plate, right ring flat-plate, left sealing plate, right sealing plate is made as respectively circle or ellipse, in use can to soft ring band, not cause wearing and tearing because of the to-and-fro motion meeting of left and right ring flat-plate, thereby extend the working life of product.Axial displacement compensation rate of the present utility model is large, take small volume, is convenient to installation and maintenance; And sealing effect is better, longer service life, high temperature resistant, better heat preservation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the local enlarged diagram at I place in Fig. 1;
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 1;
Fig. 4 is the B-B sectional structure schematic diagram of Fig. 1;
Fig. 5 is the C-C sectional structure schematic diagram of Fig. 1;
Fig. 6 is D-D sectional structure schematic diagram in Fig. 1.
In figure: 1, left otic placode, 2, nut, 3, pull bar, 4, left ring flat-plate, 5, left adapter, 6, nonmetal flexible astragal, 7, left sealing plate, 8, seal ring, 9, screw rod, 10, spring, 11, aluminum silicate fiber, 12, right sealing plate, 13, auris dextra plate, 14, right adapter, 15, right ring flat-plate, 16, boiler inclined tube.
Embodiment
As shown in Figures 1 to 6, the special-purpose expansion joint of boiler inclined tube, comprise left adapter 5 and right adapter 14, the both sides of left adapter 5 are respectively equipped with left ring flat-plate 4 and left sealing plate 7, the both sides of right adapter 14 are respectively equipped with right sealing plate 12 and right ring flat-plate 15, described left ring flat-plate 4 is formed and is tightly connected with right ring flat-plate 15 by nonmetal flexible astragal 6, make left sealing plate 7 cooperatively interact and form with right sealing plate 12 simultaneously and can produce in any direction the sliding sealing surface of displacement, between left sealing plate 7 and right sealing plate 12, be provided with seal ring 5.Angle between the axis of the axis of described boiler inclined tube 16 and left adapter 5 or right adapter 14 is less than 90 degree.
In the present embodiment, described left adapter 5, right adapter 14, left ring flat-plate 4, right ring flat-plate 15, left sealing plate 7, right sealing plate 12 are made as respectively ellipse.The outer surface of described left sealing plate 7 is laid with some high temperature resistant screw rods 9, seal ring 5 is ceramic fiber seal rings, on seal ring 5, offer some through holes, screw rod 9 is connected with left sealing plate 7 by the through hole on seal ring 5, is provided with high temperature resistant spring 10 between screw rod 9 and seal ring 5.Screw rod 9 is pressed on seal ring 5 by spring 10 outer surface of left sealing plate 7, makes seal ring 5 and the sealing surface of right sealing plate 12 combine closely simultaneously.
Described in the present embodiment, left ring flat-plate 4 and right ring flat-plate 15 are respectively equipped with left otic placode 1 and the auris dextra plate 13 that can produce resiliently deformable, left otic placode 1 and the preferred spring steel of auris dextra plate 13 are made, between left otic placode 1 and auris dextra plate 13, by pull bar 3, be connected and fix with nut 2, can make like this left and right sealing plate spacing in movement process, remain unchanged, improve sealing effect.The preferred fluorine rubber astragal of the utility model nonmetal flexible astragal 6, between fluorine rubber astragal and left adapter 5 and right adapter 14, be filled with high-temperature-resistant thermal-insulation material, the preferred aluminum silicate fiber 11 of this high-temperature-resistant thermal-insulation material, the utility model seal ring 5 is high temperature resistant, wear-resisting ceramic fiber seal ring preferably.
Left adapter of the present utility model, right adapter, left ring flat-plate, right ring flat-plate, left sealing plate, right sealing plate also can be made as respectively circle, in using process, can effectively protect fluorine rubber astragal, reduces wear, thereby extended working life of product; Axial displacement compensation rate of the present utility model is large, it is little to take volume, is convenient to installation and maintenance; And sealing effect is better, high temperature resistant, better heat preservation.
Claims (10)
1. the special-purpose expansion joint of a boiler inclined tube, comprise left adapter and right adapter, it is characterized in that: the both sides of described left adapter are respectively equipped with left ring flat-plate and left sealing plate, the both sides of right adapter are respectively equipped with right sealing plate and right ring flat-plate, described left ring flat-plate is formed and is tightly connected by nonmetal flexible astragal and right ring flat-plate, make left sealing plate complement each other to form and can produce in any direction the sliding sealing surface of displacement with right sealing plate, left sealing plate is provided with seal ring with between right sealing plate simultaneously.
2. the special-purpose expansion joint of boiler inclined tube according to claim 1, is characterized in that: described left adapter, right adapter, left ring flat-plate, right ring flat-plate, left sealing plate, right sealing plate is made as respectively circle or ellipse.
3. the special-purpose expansion joint of boiler inclined tube according to claim 1 and 2, it is characterized in that: described left sealing plate outer surface be laid with some screw rods, described screw rod by elastic member by seal ring be pressed on left sealing plate outer surface, make simultaneously seal ring and right sealing plate sealing surface combine closely.
4. the special-purpose expansion joint of boiler inclined tube according to claim 3, is characterized in that: the through hole that described screw rod is provided with by seal ring and left sealing plate connect, and between screw rod and seal ring, are provided with spring.
5. the special-purpose expansion joint of boiler inclined tube according to claim 1, is characterized in that: described left ring flat-plate and right ring flat-plate are respectively equipped with left otic placode and the auris dextra plate that can produce resiliently deformable, is connected and fixes between left otic placode and auris dextra plate by pull bar with nut.
6. according to the special-purpose expansion joint of the boiler inclined tube described in claim 1 or 2 or 5, it is characterized in that: between described nonmetal flexible astragal and left adapter and right adapter, be filled with high-temperature-resistant thermal-insulation material.
7. the special-purpose expansion joint of boiler inclined tube according to claim 6, is characterized in that: described high-temperature-resistant thermal-insulation material comprises aluminum silicate fiber.
8. the special-purpose expansion joint of boiler inclined tube according to claim 6, is characterized in that: described nonmetal flexible astragal comprises fluorine rubber astragal.
9. the special-purpose expansion joint of boiler inclined tube according to claim 1, is characterized in that: described seal ring is ceramic fiber seal ring.
10. the special-purpose expansion joint of boiler inclined tube according to claim 1, is characterized in that: the angle between the axis of described boiler inclined tube and left adapter or right adapter axis is less than 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105214.0U CN203718252U (en) | 2014-03-08 | 2014-03-08 | Special expansion joint for inclined pipe of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105214.0U CN203718252U (en) | 2014-03-08 | 2014-03-08 | Special expansion joint for inclined pipe of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718252U true CN203718252U (en) | 2014-07-16 |
Family
ID=51157402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105214.0U Withdrawn - After Issue CN203718252U (en) | 2014-03-08 | 2014-03-08 | Special expansion joint for inclined pipe of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718252U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896247B (en) * | 2014-03-08 | 2017-06-23 | 江苏恒丰波纹管有限公司 | The special expansion joint of boiler inclined tube |
| CN112113055A (en) * | 2020-10-15 | 2020-12-22 | 诸暨市沣泽动力机械有限公司 | Novel nonmetal expansion joint of feed back ware furnace |
-
2014
- 2014-03-08 CN CN201420105214.0U patent/CN203718252U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896247B (en) * | 2014-03-08 | 2017-06-23 | 江苏恒丰波纹管有限公司 | The special expansion joint of boiler inclined tube |
| CN112113055A (en) * | 2020-10-15 | 2020-12-22 | 诸暨市沣泽动力机械有限公司 | Novel nonmetal expansion joint of feed back ware furnace |
| CN112113055B (en) * | 2020-10-15 | 2023-08-29 | 诸暨市沣泽动力机械有限公司 | Novel nonmetallic expansion joint of feeder return hearth |
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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 |
Granted publication date: 20140716 Effective date of abandoning: 20170623 |