CN203979744U - Rubber sealing bypass pressure balancing sleeve compensator - Google Patents

Rubber sealing bypass pressure balancing sleeve compensator Download PDF

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Publication number
CN203979744U
CN203979744U CN201420343122.6U CN201420343122U CN203979744U CN 203979744 U CN203979744 U CN 203979744U CN 201420343122 U CN201420343122 U CN 201420343122U CN 203979744 U CN203979744 U CN 203979744U
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China
Prior art keywords
pipe
rubber sealing
tube
compensator
core pipe
Prior art date
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CN201420343122.6U
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Chinese (zh)
Inventor
苏荣华
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苏荣华
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Priority to CN201420343122.6U priority Critical patent/CN203979744U/en
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Publication of CN203979744U publication Critical patent/CN203979744U/en

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Abstract

The utility model relates to a kind of rubber sealing bypass pressure balancing sleeve compensator, comprises outer sleeve, has core pipe connected pipe A and core pipe connected pipe B, reducing connecting tube, rubber sealing assembly, oval convex blind plate and the respirating tube of pod apertures.Between described outer sleeve and internal pipeline, by rubber sealing assembly, form annular seal space, between the oval convex blind plate in reducing connecting tube and both sides, by rubber sealing assembly, form Seal cage, core pipe connected pipe A can slide along two rubber sealing assemblies, by the compression of inner sealing chamber, realizes the compensating action to pipeline thermal distortion.Compared with prior art, the beneficial effects of the utility model are: 1) seal reliable, long-acting, Maintenance free in running; 2) can outwards not transmit interior pressure thrust, frictional force is little, can significantly reduce support bracket fastened force request, reduces support bracket fastened construction cost and cost of material; 3) while installing, only need two end interfaces to be connected with the pipeline welding that is connected, easy for installation.

Description

Rubber sealing bypass pressure balancing sleeve compensator
Technical field
The present invention relates to a kind of compensator, relate in particular to a kind of rubber sealing bypass pressure balancing sleeve compensator.
Background technique
Compensator is practised and is also expansion joint or slip joint, of many uses in modern industry.When heating system heats up in order to prevent heat supply pipeline, because thermal stretching or temperature stress cause pipe deforming or destruction, compensator is set conventionally on pipeline, to compensate the thermal stretching of pipeline, thereby reduces the stress of tube wall and act on the active force on valve member or supporting structure.
When medium is hot water, pressure balanced compensator used in engineering has various ways: as adopted the compensator that metal bellows is compensating element, or the compensator of employing flexible graphite sealing etc.Wherein adopting metal bellows is that the cost cost of pressure balance type compensator of compensating unit is higher, and elastic reaction is larger; And adopting the pressure balance type compensator frictional force of flexible graphite sealing very large, the pressure balanced compensator of above type all cannot meet the compensation needs that high trestle, pipe trench, small angle break etc. cannot be made high thrust fixed support node.At present, also there is no to be a kind ofly applicable to that hot water is built on stilts, trench pipeline small rack thrust or without the pressure-balancing type compensator of support Design scheme.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide the multiple rubber ring of a kind of employing to carry out combination seal and utilize medium self pressure consolidated sealing effect, frictional force is little and the better rubber sealing bypass pressure of Economy Balance-type Sleeve Compensator.
In order to achieve the above object, the present invention realizes by the following technical solutions:
Rubber sealing bypass pressure balancing sleeve compensator, comprises outer sleeve, has core pipe connected pipe A and core pipe connected pipe B, reducing connecting tube, rubber sealing assembly, oval convex blind plate and the respirating tube of pod apertures; Described rubber sealing assembly is at least 2 groups, be sleeved on core pipe connected pipe A, the rubber sealing assembly that is positioned at outside is fixedly connected with outer sleeve, the rubber sealing assembly that is positioned at inner side is fixedly connected with reducing connecting tube, and the other end of reducing connecting tube and outer sleeve is fixedly connected with core pipe connected pipe B respectively; Oval convex blind plate is at least 2, is separately fixed at the pipe end of core pipe connected pipe A after near reducing connecting tube one side and reducing connecting tube undergauge; Respirating tube one end is through the oval convex blind plate in outside, and the other end stretches out from core pipe connected pipe B tube wall.
Described rubber sealing assembly is comprised of Sealed casing pipe and the guidance tape and the rubber ring that are arranged on its inner circumference, described guidance tape is placed in rubber ring both sides, for teflon copper powder guidance tape, described rubber ring is respectively ethylene propylene diene rubber O RunddichtringO and YX shape sealing rubber ring for Ethylene Propylene Terpolymer axle.
Described pod apertures is several, measure-alike and be uniformly distributed along the circumference, and the axis of core pipe connected pipe A and the upper corresponding pod apertures of core pipe connected pipe B is located along the same line; The sectional area summation of offering pod apertures on each core pipe connected pipe equals the actual internal area+0~20mm of this core pipe connected pipe 2.
The minimum actual internal area of the annular pass forming between described outer sleeve and core pipe connected pipe A, core pipe connected pipe B and reducing connecting tube equals the maximum flow sectional area+0~20mm of core pipe connected pipe 2, outer sleeve two ends are with ellipse head transition.
Described core pipe connected pipe A is near one end of reducing connecting tube draw ring of setting up defences, between the nearest end face of Sealed casing pipe of itself and inner side rubber sealing assembly, distance is 30~40mm, the minimum distance of the Sealed casing pipe end face distance pod apertures end face of outside rubber sealing assembly is 30mm~40mm, and above-mentioned 2 Sealed casing pipe other ends equal the specified compensation rate+0~10mm of compensator apart from the distance of the nearest end face of pod apertures.
The length of the large footpath of described reducing connecting tube section equals the specified compensation rate+50~100mm of compensator, and the Sealed casing pipe exterior edge face of outside rubber sealing assembly equals the specified compensation rate+50~100mm of compensator apart from the distance of core pipe connected pipe A exterior edge face.
The medium of described compensator application is that temperature is no more than 150 ℃, and pressure is no more than the hot aqueous medium of 2.5MPa.
The surface Machining roughness of described core pipe connected pipe A and core pipe connected pipe B is 0.8~1.6 μ m, plating hard chromium on surface, thickness of coating 0.03-0.05mm.
The described mode that is fixedly connected with is for welding, and all circular welds all adopt weldering mode in argon Electricity Federation to weld and through x-ray inspection inspection.
Described compensator is decored the outer all surface of pipe connected pipe A exposed parts through antirust processing, and seal chamber is checked through hydrostatics testing.
Compared with prior art, the invention has the beneficial effects as follows:
1) there is reliable, long-acting sealability, Maintenance free in running;
2) the interior pressure thrust of medium is by compensator self structure balance, can outwards not transmit, frictional force is far smaller than the compensator that adopts metal bellows or flexible graphite packing sealing, can significantly reduce support bracket fastened force request, reduces support bracket fastened construction cost and cost of material;
3) while installing, only need two end interfaces to be connected with the pipeline welding that is connected, easy for installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1. YX shape sealing rubber ring 3. ellipse head 4. pod apertures 5. outer sleeve 6. anti-slip ring 7. oval convex blind plate 8. reducing connecting tube 9. core pipe connected pipe B10. respirating tube 11. Seal cage a12. annular seal space b for core pipe connected pipe A2. rubber sealing assembly 2-1. Sealed casing pipe 2-2. guidance tape 2-3.O type rubber ring 2-4. axle
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
See Fig. 1, it is structural representation of the present invention, rubber sealing bypass pressure balancing sleeve compensator of the present invention, comprise outer sleeve (5), have core pipe connected pipe A (1) and the core pipe connected pipe B (9) of pod apertures (4), reducing connecting tube (8), rubber sealing assembly (2), oval convex blind plate (7) and respirating tube (10), described rubber sealing assembly (2) is at least 2 groups, be sleeved on core pipe connected pipe A (1), Sealed casing pipe (2-1) one end that is positioned at the rubber sealing assembly (2) in outside is fixedly connected with outer sleeve (5), Sealed casing pipe (2-1) one end that is positioned at the rubber sealing assembly (2) of inner side is fixedly connected with reducing connecting tube (8), reducing connecting tube (8) the other end is fixedly connected with core pipe connected pipe B (9), the other end of outer sleeve (5) is also fixedly connected with core pipe connected pipe B (9), oval convex blind plate (7) is at least 2, be separately fixed at the pipe end after close reducing connecting tube (8) one sides of core pipe connected pipe A (1) and reducing connecting tube (8) undergauge, respirating tube (10) one end is through the oval convex blind plate (7) in outside, and the other end stretches out from core pipe connected pipe B (9) tube wall.
Described rubber sealing assembly (2) is comprised of Sealed casing pipe (2-1) and the guidance tape (2-1) and the rubber ring that are arranged on its inner circumference, described guidance tape (2-2) is placed in rubber ring both sides, for teflon copper powder guidance tape, described rubber ring is respectively ethylene propylene diene rubber O RunddichtringO (2-3) and YX shape sealing rubber ring (2-4) for Ethylene Propylene Terpolymer axle.
Described pod apertures (4) is several, measure-alike and be uniformly distributed along the circumference, and the axis of core pipe connected pipe A (1) and the upper corresponding pod apertures (4) of core pipe connected pipe B (9) is located along the same line; The sectional area summation of offering pod apertures (4) on each core pipe connected pipe equals the actual internal area+0~20mm of this core pipe connected pipe 2.
The minimum actual internal area of the annular pass forming between described outer sleeve (5) and core pipe connected pipe A (1), core pipe connected pipe B (9) and reducing connecting tube (8) equals the maximum flow sectional area+0~20mm of core pipe connected pipe 2, outer sleeve (5) two ends are with ellipse head (3) transition.
Described core pipe connected pipe A (1) is near one end of reducing connecting tube (8) draw ring (6) of setting up defences, the Sealed casing pipe (2-1) of itself and inner side rubber sealing assembly (2) recently between end face distance be 30~40mm, the minimum distance of Sealed casing pipe (2-1) end face distance pod apertures (4) end face of outside rubber sealing assembly (2) is 30mm~40mm, and above-mentioned 2 Sealed casing pipes (2-1) other end equals the specified compensation rate+0~10mm of compensator apart from the distance of the nearest end face of pod apertures (4).
The length of the large footpath of described reducing connecting tube (8) section equals the specified compensation rate+50~100mm of compensator, and Sealed casing pipe (2-1) exterior edge face of outside rubber sealing assembly (2) equals the specified compensation rate+50~100mm of compensator apart from the distance of core pipe connected pipe A (1) exterior edge face.
The medium of described compensator application is that temperature is no more than 150 ℃, and pressure is no more than the hot aqueous medium of 2.5MPa.
The surface Machining roughness of described core pipe connected pipe A (1) and core pipe connected pipe B (9) is 0.8~1.6 μ m, plating hard chromium on surface, thickness of coating 0.03-0.05mm.
The described mode that is fixedly connected with is for welding, and all circular welds all adopt weldering mode in argon Electricity Federation to weld and through x-ray inspection inspection.
Described compensator is decored the outer all surface of pipe connected pipe A (1) exposed parts through antirust processing, and seal chamber (11), (12) are checked through hydrostatics testing.
The course of working of rubber sealing bypass pressure balancing sleeve compensator of the present invention is as follows:
Processing core pipe connected pipe A (1), before surface Machining, is welded on anti-slip ring (6) one end of core pipe connected pipe (1) outside, and elliptical convex blind plate (7) is welded on the mouth of pipe inner side of same one end; After having welded, carry out roughing; After roughing completes, offer pod apertures (4), pod apertures (4) verge of opening and core pipe connected pipe A (1) are (compensation rate+outer sleeve length+30) mm without anti-slip ring one end end face distance, according to circumference uniform distribution and size requirement, offer several pod apertures (4).After pod apertures (4) is offered, carry out surface finishing to the requirement of regulation roughness, then hard chromium plating is processed.
Guidance tape (2-2), O type rubber ring (2-3), axle are arranged in the respective grooves of Sealed casing pipe (2-1) circumferential inner surface with YX shape sealing rubber ring (2-4), complete rubber sealing assembly (2) assembling.1 group of rubber sealing assembly (2) is sleeved on core pipe connected pipe A (1); The end of assurance Sealed casing pipe (2-1) is 30~40mm apart from the distance of the nearest end face of anti-slip ring (6), and itself and reducing connecting tube (8) are welded; Pipe end at reducing connecting tube (8) welds another piece elliptical convex blind plate (7), on it, be reserved with the through hole being connected with respirating tube (10), respirating tube (10) is inserted to through hole the welding of elliptical convex blind plate (7), vertical short tube after respirating tube (10) elbow is fixed after core pipe connected pipe B (9) has connected again, the upper reserving installation hole of core pipe connected pipe B (9).
By reducing connecting tube (8) the other end and core pipe connected pipe B (9) welding, the tube wall welding by the ellipse head of outer sleeve (5) one sides (3) with black box B (9).Again another group rubber sealing assembly (2) is sleeved on to core pipe connected pipe A (1) upper, by opposite side ellipse head (3) welding of its Sealed casing pipe (2-1) inner side end and outer sleeve (5).Finally, the vertical short tube of respirating tube (10) is inserted and docked welding with the elbow of respirating tube (10) by the respirating tube preformed hole on core pipe connected pipe B (9), then by the vertical short tube of respirating tube (10) and core pipe connected pipe B (9) welding.
The size and dimension of described ethylene propylene diene rubber O RunddichtringO (2-3) and Ethylene Propylene Terpolymer Yx profile shaft sealing seal ring (2-4) is determined according to seal request.
The described all circumferential welded seams that are welded to connect are pressure-bearing weld seam, adopt weldering mode in argon Electricity Federation to weld and carry out x-ray inspection check.
Seal cage need carry out hydrostatics testing check, and wherein the hydrostatics testing of Seal cage a (11) check should be carried out before outer sleeve (5) are welded to connect, and again carried out hydrostatics testing check after compensator overall package completes.
During use, respirating tube (10) port that leans out core pipe connected pipe B (9) is placed down.
The working principle of rubber sealing bypass pressure balancing sleeve compensator of the present invention is: during work, core pipe connected pipe B (9) one sides are connected with fixation means, and core pipe connected pipe A (1) one side is connected with pipeline.Between outer sleeve (5) and internal pipeline, by rubber sealing assembly (2), form annular seal space b (12), between the oval convex blind plates in reducing connecting tube (8) and both sides (7), by rubber sealing assembly, form Seal cage a (11), pipeline expanded by heating extends, promote core pipe connected pipe A (1) and slide along two rubber sealing assemblies (2), by Seal cage a (11) compression, realize the compensating action to pipeline thermal distortion.Seal cage a (11) by compression after, its air pressure discharges by respirating tube (10).Medium enters the annular seal space b (12) being formed by outer sleeve and internal pipeline by the pod apertures (4) on core pipe connected pipe A (1), then enters core pipe connected pipe B (9) by the pod apertures (4) on core pipe connected pipe B (9).

Claims (10)

1. rubber sealing bypass pressure balancing sleeve compensator, is characterized in that, comprises outer sleeve, has core pipe connected pipe A and core pipe connected pipe B, reducing connecting tube, rubber sealing assembly, oval convex blind plate and the respirating tube of pod apertures; Described rubber sealing assembly is at least 2 groups, be sleeved on core pipe connected pipe A, the rubber sealing assembly that is positioned at outside is fixedly connected with outer sleeve, the rubber sealing assembly that is positioned at inner side is fixedly connected with reducing connecting tube, and the other end of reducing connecting tube and outer sleeve is fixedly connected with core pipe connected pipe B respectively; Oval convex blind plate is at least 2, is separately fixed at the pipe end of core pipe connected pipe A after near reducing connecting tube one side and reducing connecting tube undergauge; Respirating tube one end is through the oval convex blind plate in outside, and the other end stretches out from core pipe connected pipe B tube wall.
2. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, it is characterized in that, described rubber sealing assembly is comprised of Sealed casing pipe and the guidance tape and the rubber ring that are arranged on its inner circumference, described guidance tape is placed in rubber ring both sides, for teflon copper powder guidance tape, described rubber ring is respectively ethylene propylene diene rubber O RunddichtringO and YX shape sealing rubber ring for Ethylene Propylene Terpolymer axle.
3. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, it is characterized in that, described pod apertures is several, measure-alike and be uniformly distributed along the circumference, and the axis of core pipe connected pipe A and the upper corresponding pod apertures of core pipe connected pipe B is located along the same line; The sectional area summation of offering pod apertures on each core pipe connected pipe equals the actual internal area+0~20mm of this core pipe connected pipe 2.
4. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, it is characterized in that, the minimum actual internal area of the annular pass forming between described outer sleeve and core pipe connected pipe A, core pipe connected pipe B and reducing connecting tube equals the maximum flow sectional area+0~20mm of core pipe connected pipe 2, outer sleeve two ends are with ellipse head transition.
5. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, it is characterized in that, described core pipe connected pipe A is near one end of reducing connecting tube draw ring of setting up defences, between the nearest end face of Sealed casing pipe of itself and inner side rubber sealing assembly, distance is 30~40mm, the minimum distance of the Sealed casing pipe end face distance pod apertures end face of outside rubber sealing assembly is 30mm~40mm, and above-mentioned 2 Sealed casing pipe other ends equal the specified compensation rate+0~10mm of compensator apart from the distance of the nearest end face of pod apertures.
6. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, it is characterized in that, the length of the large footpath of described reducing connecting tube section equals the specified compensation rate+50~100mm of compensator, and the Sealed casing pipe exterior edge face of outside rubber sealing assembly equals the specified compensation rate+50~100mm of compensator apart from the distance of core pipe connected pipe A exterior edge face.
7. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, is characterized in that, the medium of described compensator application is that temperature is no more than 150 ℃, and pressure is no more than the hot aqueous medium of 2.5MPa.
8. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, is characterized in that, the surface Machining roughness of described core pipe connected pipe A and core pipe connected pipe B is 0.8~1.6 μ m, plating hard chromium on surface, thickness of coating 0.03-0.05mm.
9. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, is characterized in that, described in be fixedly connected with mode for welding, all circular welds all adopt weldering mode in argon Electricity Federation to weld and through x-ray inspection inspection.
10. rubber sealing bypass pressure balancing sleeve compensator according to claim 1, is characterized in that, described compensator is decored the outer all surface of pipe connected pipe A exposed parts through antirust processing, and seal chamber is checked through hydrostatics testing.
CN201420343122.6U 2014-06-25 2014-06-25 Rubber sealing bypass pressure balancing sleeve compensator CN203979744U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061398A (en) * 2014-06-25 2014-09-24 苏荣华 Rubber-ring sealed by-pass pressure-balance sleeve compensator
CN105065820A (en) * 2015-08-08 2015-11-18 济南大学 Connecting device for eliminating three-direction vibrations of pipeline interface
CN105650878A (en) * 2016-01-25 2016-06-08 王强 Water heater and hot water circulating device thereof
CN105841336A (en) * 2016-03-23 2016-08-10 宋景涛 Water heater and hot water circulating device thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061398A (en) * 2014-06-25 2014-09-24 苏荣华 Rubber-ring sealed by-pass pressure-balance sleeve compensator
CN104061398B (en) * 2014-06-25 2016-08-24 苏荣华 The processing method of rubber sealing bypass pressure balancing sleeve compensator
CN105065820A (en) * 2015-08-08 2015-11-18 济南大学 Connecting device for eliminating three-direction vibrations of pipeline interface
CN105065820B (en) * 2015-08-08 2017-04-19 济南大学 Connecting device for eliminating three-direction vibrations of pipeline interface
CN105650878A (en) * 2016-01-25 2016-06-08 王强 Water heater and hot water circulating device thereof
CN105650878B (en) * 2016-01-25 2019-06-18 王强 Water heater and its hot water circulating device
CN105841336A (en) * 2016-03-23 2016-08-10 宋景涛 Water heater and hot water circulating device thereof
CN105841336B (en) * 2016-03-23 2019-06-18 宋景涛 Water heater and its hot water circulating device

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