CN205120507U - Expansion joint's hydrostatic pressing testing arrangement - Google Patents
Expansion joint's hydrostatic pressing testing arrangement Download PDFInfo
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- CN205120507U CN205120507U CN201520890728.6U CN201520890728U CN205120507U CN 205120507 U CN205120507 U CN 205120507U CN 201520890728 U CN201520890728 U CN 201520890728U CN 205120507 U CN205120507 U CN 205120507U
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- expansion joint
- sealing shroud
- pipeline
- hydrostatic pressing
- anchor ear
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Abstract
The utility model provides an expansion joint's hydrostatic pressing testing arrangement, including a seal cover, the cover has fluid business turn over hole on the seal cover on expansion joint, a staple bolt, fixed connection be in the one end of expansion joint and pipe connection, the staple bolt with seal cover fixed connection. The utility model discloses well staple bolt and seal cover fixed connection prevent when the water injection, and the pressure of water makes the seal cover remove to the impact that the seal cover caused, and this kind of device need not to use the connecting screw rod who equals with the duct length sealed fixed with both ends, needn't inject the length of the pipeline that the quilt was tested, therefore this kind of hydrostatic pressing testing arrangement only both had been applicable to the pipeline that one end has expansion joint, also are applicable to the pipeline of all connecting expansion joint in both ends.
Description
Technical field
The utility model relates to pipeline and manufactures field, the hydrostatic pressing proving installation of particularly a kind of expansion joint.
Background technology
Pipeline is the device of fluid for carrying gas, liquid or band solid particle be connected into pipe, pipe connector and valve etc.Usually, fluid, after the superchargings such as fan blower, compressor, pump and boiler, flows to low pressure place from the high pressure of pipeline, also can utilize pressure or the gravity transfer of fluid self.Having many uses of pipeline is general, be mainly used in feedwater, draining, heat supply, give gas, long distance delivery oil and natural gas, agricultural irrigation, in hydraulic engineering and various commercial plant.
Expansion joint, also compensation of pipeline joint is, pump, the new product that is connected with pipeline of the equipment such as valve, pipeline, by bolt, equipment and pipeline and expansion joint are coupled together, become entirety, expansion joint has certain displacement, so just can when installation and maintenance, adjust according to in-site installation size, operationally, axial thrust can be passed also to whole piping system.So not only increase work efficiency, and certain protective role is played to the equipment such as pump, valve.
In addition because pipeline extension swell increment is large, bearing temperature is high, compression area is larger, base concrete cast or pre-buried pipeline in water & wastewater engineering for building, in these engineerings, pipeline by building foundation sedimentation, equipment resonance, geology change and pipeline medium change process in, pipeline distribution position start stressed, distortion, distortion thus destroy pipeline.Therefore great inconvenience is brought by breaking of pre-buried pipeline to unit in charge of construction for a long time, in order to overcome these difficulties, guarantee the safe operation of pipeline, use expansion bend or expansion joint, it can in certain scope axial stretching, overcome the various angular shift of pipeline, decentraction, flexible, expand.Pipeline can free-extension in expansion bend or expansion joint.Once exceed maximum stroke, expansion joint self plays position-limiting action, thus ensures that pipe safety runs.
The manufacture of expansion joint needs to use mould molding and welding fabrication, after fabrication is complete, in order to check the quality of expansion joint and pipeline, especially the quality that completes of welding fabrication, often inject liquid in this pipeline, the pressure utilizing liquid to produce impacts weld, is hydrostatic pressing test.
In prior art, the equipment of expansion joint hydrostatic pressing test is only limitted to only have one end to be the pipeline of expansion joint, and this pipeline other end is necessary for flange, please refer to Fig. 1, connected by the pipeline of to be expansion joint 04 one end be in two one end flange 03, the expansion joint 04 of two pipelines is all wrapped in a steel sleeve 01, by this device horizontal positioned, flange 03 lower end of a pipeline is provided with water injection hole 06, the upper end of the flange 03 of another root pipeline is provided with vent port 07, remain on water when not occupying, vent port 07 is positioned at water ullage, some connecting screw rods 02 are used to be connected and fixed between the flange 03 of two pipelines, prevent flange 03 from moving.From water injection hole 06 to this device intracontour waterflooding, device inside is squeezed by water the air and is flowed out from vent port 07, until water fills, is closed by vent port 07, connects hydrostatic pressing test instrumentation from water injection hole 06.Adjustment gap, one end 09 is left between two expansion joints 04, nylon rod 05 and rubber ring 08 is all provided with between the sidewall of steel sleeve 01 and two expansion joints 04, nylon rod 05 is for making compact siro spinning technology between expansion joint 04 sidewall and steel sleeve 01 sidewall, and rubber ring 08 is to prevent the water in pipeline from discharging from adjustment gap 09.But the hydrostatic pressing testing apparatus of this expansion joint 04 has following shortcoming:
1. usually, connecting screw rod 02 can not arrange long, otherwise too small for the bed knife of two end flanges 03, then when testing, flange 03 can move due to the pressure of water, causes water to flow out, and connecting screw rod 02 can not arrange and longly means that the duct length of test is restricted;
2. the type of test is restricted, if a pipe ends all connects expansion joint 04, is not then suitable for above-mentioned testing apparatus.
For the problems referred to above, be necessary the hydrostatic pressing proving installation inventing a kind of expansion joint, the duct length of test need not be limited, and can be applicable to pipeline that two ends all connect expansion joint to be also applicable to one end be expansion joint one end be the pipeline of flange.
Utility model content
The utility model provides a kind of hydrostatic pressing proving installation of expansion joint, be made up of the sealing shroud be enclosed within expansion joint and the anchor ear that arranges in one end that expansion joint is connected with pipeline, anchor ear is fixedly connected with sealing shroud, prevent when water filling, the pressure of water makes sealing shroud move to the impact that sealing shroud causes, this device is without the need to using the connecting screw rod equal with duct length by fixing for two ends sealing, the length of tested pipeline need not be limited, therefore this hydrostatic pressing proving installation had both been applicable to only one end and had had the pipeline of expansion joint, also the pipeline that two ends all connect expansion joint is applicable to.
For achieving the above object, the utility model provides a kind of hydrostatic pressing proving installation of expansion joint, comprises
One sealing shroud, is enclosed within expansion joint, and described sealing shroud has fluid passing hole;
One anchor ear, is fixedly connected on one end that described expansion joint is connected with pipeline, and described anchor ear is fixedly connected with described sealing shroud.
As preferably, the end cap that described sealing shroud is one end sealing, the other end has opening, described expansion joint enters described sealing shroud from described opening, and is sealed by described sealing shroud.
As preferably, be provided with between described sealing shroud and described expansion joint and prevent fluid leakage device.
As preferably, described in prevent fluid leakage device from being rubber ring, described rubber ring is between the madial wall and described expansion joint lateral wall of described sealing shroud.
As preferably, described anchor ear is wrapped in described expansion joint in the outer toroid of described pipeline, and described anchor ear is connected with the outer toroid bolt of described expansion joint.
As preferably, described sealing shroud is connected with the circumference of described anchor ear by some connecting screw rods, the axisymmetrical of described connecting screw rod in described anchor ear junction circumferentially about described pipeline.
As preferably, the lateral wall of described sealing shroud arranges coupling shaft, described coupling shaft has the screw screwed in for described connecting screw rod, the distribution of described coupling shaft is about the axisymmetrical of described pipeline.
As preferably, described fluid passing hole is water injection hole and/or vent port.
As preferably, the material of described anchor ear and described sealing shroud is all steel.
As preferably, described pipe ends is all connected with described expansion joint, in the described expansion joint being positioned at two ends, all cover has described sealing shroud, the described sealing shroud of one end has water injection hole, the described sealing shroud of the other end has vent port, and the height of described vent port is greater than or equal to the height of liquid level when hydrostatic pressing is tested.
Compared with prior art, the beneficial effects of the utility model are: the utility model provides a kind of hydrostatic pressing proving installation of expansion joint, comprises
One sealing shroud, is enclosed within expansion joint, and described sealing shroud has fluid passing hole;
One anchor ear, is fixedly connected on one end that described expansion joint is connected with pipeline, and described anchor ear is fixedly connected with described sealing shroud.
By the sealing shroud be enclosed within expansion joint and in one end that expansion joint is connected with pipeline, fixing anchor ear forms the utility model, anchor ear is fixedly connected with sealing shroud, when preventing water filling in pipeline, the pressure of water makes sealing shroud open to the impact that sealing shroud causes, because this device all completes in same one end for the fixing of sealing shroud, without the need to using the connecting screw rod equal with duct length by fixing for two ends sealing, then without the need to using the connecting screw rod identical with pipeline to fix, therefore the length of tested pipeline need not be limited, and this hydrostatic pressing proving installation had both been applicable to only one end and had had the pipeline of expansion joint, if test two ends all connect the pipeline of expansion joint, the expansion joint at two ends is only needed all to be inserted in sealing shroud, and fix anchor ear in one end that expansion joint is connected with pipeline, make anchor ear with its sealing shroud be at one end fixedly connected with, water is injected at the fluid passing hole of a section, air is discharged at the fluid passing hole of another section, hydrostatic pressing test can be carried out, therefore this hydrostatic pressing proving installation had both been applicable to only one end is the pipeline of expansion joint, also the pipeline that two ends all connect expansion joint is applicable to.
Accompanying drawing explanation
Fig. 1 is expansion joint hydrostatic pressing testing apparatus operating diagram in prior art;
The expansion joint hydrostatic pressing proving installation operating diagram that Fig. 2 provides for the utility model.
Illustrate in prior art: 01-steel sleeve, 02-connecting screw rod, 03-flange, 04-expansion joint, 05-nylon rod, 06-water injection hole, 07-vent port, 08-rubber ring, 09-adjust gap;
The utility model illustrates: 1-sealing shroud, 2-connecting screw rod, 3-anchor ear, 4-expansion joint, 5-rubber ring, 6-water injection hole, 7-vent port, 8-pipeline, 9-coupling shaft.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
The utility model provides a kind of hydrostatic pressing proving installation of expansion joint, please refer to Fig. 2, is carry out hydrostatic pressing test, the anchor ear 3 that this hydrostatic pressing proving installation comprises sealing shroud 1 and is fixedly connected with sealing shroud 1 to the pipeline that two ends all connect expansion joint 4 in the present embodiment, wherein
Sealing shroud 1, be enclosed within the expansion joint 4 of pipeline 8 every one end connection, the end cap that sealing shroud 1 is one end sealing, the other end has opening, opening shape is wherein cylindrical, the diameter of opening is slightly larger than pipe diameter, and expansion joint 4 enters sealing shroud 1 from opening, and is sealed by the sealed end of sealing shroud 1, sealing shroud 1 has fluid passing hole, and fluid passing hole is water injection hole 6 and vent port 7.
By pipeline 8 horizontal positioned, water injection hole 6 is arranged on left end, near the madial wall of expansion joint 4, and highly minimum part on close expansion joint 4 madial wall, water injection hole 6 is less than the inside radius of pipeline 8 with the radial distance of axis, ensures that the water in water injection hole 6 directly enters in pipeline 8;
Vent port 7 is arranged on right-hand member, the same madial wall near expansion joint 4, and highly the highest part on close expansion joint 4 madial wall, when pipeline 8 does hydrostatic pressing test, to water filling in pipeline 8 time initial, the position of vent port 7 is kept above liquid level, the air be extruded due to water in pipeline 8 flows to the external world from vent port 7, until water fills in pipeline 8, now air is also all exclusive, liquid level equals the height of vent port 7, is now closed by vent port 7.Similarly, vent port 7 directly communicates with in pipeline 8 due to needs, and so vent port 7 is also less than the inside radius of pipeline 8 to the radial distance of pipeline 8 axis.
Preferably, during in order to prevent water filling in pipeline 8, water flows out between the madial wall and the lateral wall of expansion joint 4 of sealing shroud 1, therefore rubber ring 5 is set between the madial wall and the lateral wall of expansion joint 4 of sealing shroud 1, rubber ring 5 enhances the sealing between sealing shroud 1 and expansion joint 4, and anti-sealing flows out between sealing shroud 1 madial wall and the lateral wall of expansion joint 4.
Preferably, twice rubber ring 5 is set and strengthens sealing between sealing shroud 1 and expansion joint 4.
Anchor ear 3, be fixedly connected on one end that expansion joint 4 is connected with pipeline 8, usually, expansion joint 4 outside surface has the outer toroid of the identical projection of several external diameters, anchor ear 3 is wrapped in expansion joint 4 outer toroid adjacent with pipeline junction, and anchor ear 3 that anchor ear 3 and this outer toroid make is fixed in this outer toroid circumferentially using bolt to pass.Why anchor ear 3 will be fixed in expansion joint 4 outer toroid adjacent with pipeline junction, to increase the distance between anchor ear 3 and sealing shroud 1, when water slug sealing shroud 1, anchor ear 3 gives sealing shroud 1 pulling force contrary with water slug direction, the reaction force acts of pulling force is in outer toroid, outer toroid then makes expansion joint 4 to sealing shroud 1 direction indentation, if but distance between sealing shroud 1 and anchor ear 3 is larger, then expansion joint 4 needs larger power to the indentation of sealing shroud 1 direction, correspondingly, its pulling force giving sealing shroud 1 then can be larger, the sealing of sealing shroud 1 pair of expansion joint 4 is made to strengthen like this.
At anchor ear 3 circumferentially, with pipeline 8 axis for axis of symmetry, symmetrical four screws, simultaneously on sealing shroud 1 lateral wall, the coupling shaft 9 of four outwardly convexs is set in the position corresponding with above-mentioned four screws, each coupling shaft 9 arranges screw respectively with anchor ear 3 position that circumferentially screw is corresponding, connecting screw rod 2 is used to be fixedly connected with coupling shaft 9 by anchor ear 3, namely one end of connecting screw rod 2 screws in anchor ear 3 screw circumferentially, the other end screws in the screw on coupling shaft 9, sealing shroud 1 is fixed at the anchor ear 3 of pipeline 8 with one end by such utilization, prevent when injecting water in pipeline 8, water impacts sealing shroud 1, and make sealing shroud 1 leave expansion joint 4 or produce skew, make water from pipeline 8 internal leakage to the external world.
Preferably, the material of anchor ear 3 and sealing shroud 1 is all steel.
By the sealing shroud 1 be enclosed within expansion joint 4 and in one end that expansion joint 4 is connected with pipeline 8, fixing anchor ear 3 forms the utility model, anchor ear 3 is fixed in the outer toroid of expansion joint 4, anchor ear 3 is fixedly connected with by four connecting screw rods 2 with sealing shroud 1, when preventing water filling in pipeline 8, the pressure of water makes sealing shroud 1 open to the impact that sealing shroud 1 causes, because this device all completes in same one end for the fixing of sealing shroud 1, fixing without the need to using the connecting screw rod 2 equal with pipeline 8 length to be sealed at two ends, therefore the length of tested pipeline 8 need not be limited, this hydrostatic pressing proving installation had both been applicable to the pipeline 8 that only one end is expansion joint 4, also the pipeline 8 that two ends all connect expansion joint 4 is applicable to.
Obviously, those skilled in the art can carry out various change and modification to utility model and not depart from spirit and scope of the present utility model.If these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. a hydrostatic pressing proving installation for expansion joint, is characterized in that, comprise
One sealing shroud, is enclosed within expansion joint, and described sealing shroud has fluid passing hole;
One anchor ear, is fixedly connected on one end that described expansion joint is connected with pipeline, and described anchor ear is fixedly connected with described sealing shroud.
2. the hydrostatic pressing proving installation of expansion joint as claimed in claim 1, is characterized in that, the end cap that described sealing shroud is one end sealing, the other end has opening, described expansion joint enters described sealing shroud from described opening, and is sealed by described sealing shroud.
3. the hydrostatic pressing proving installation of expansion joint as claimed in claim 1, is characterized in that, be provided with and prevent fluid leakage device between described sealing shroud and described expansion joint.
4. the hydrostatic pressing proving installation of expansion joint as claimed in claim 3, is characterized in that, described in prevent fluid leakage device from being rubber ring, described rubber ring is between the madial wall and described expansion joint lateral wall of described sealing shroud.
5. the hydrostatic pressing proving installation of expansion joint as claimed in claim 1, it is characterized in that, described anchor ear is wrapped in described expansion joint in the outer toroid of described pipeline, and described anchor ear is connected with the outer toroid bolt of described expansion joint.
6. the hydrostatic pressing proving installation of expansion joint as claimed in claim 1, it is characterized in that, described sealing shroud is connected with the circumference of described anchor ear by some connecting screw rods, the axisymmetrical of described connecting screw rod in described anchor ear junction circumferentially about described pipeline.
7. the hydrostatic pressing proving installation of expansion joint as claimed in claim 6, it is characterized in that, the lateral wall of described sealing shroud arranges coupling shaft, described coupling shaft has the screw screwed in for described connecting screw rod, the distribution of described coupling shaft is about the axisymmetrical of described pipeline.
8. the hydrostatic pressing proving installation of expansion joint as claimed in claim 1, it is characterized in that, described fluid passing hole is water injection hole and/or vent port.
9. the hydrostatic pressing proving installation of expansion joint as claimed in claim 1, it is characterized in that, the material of described anchor ear and described sealing shroud is all steel.
10. the hydrostatic pressing proving installation of expansion joint as claimed in claim 1, it is characterized in that, described pipe ends is all connected with described expansion joint, in the described expansion joint being positioned at two ends, all cover has described sealing shroud, the described sealing shroud of one end has water injection hole, the described sealing shroud of the other end has vent port, and the height of described vent port is greater than or equal to the height of liquid level when hydrostatic pressing is tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890728.6U CN205120507U (en) | 2015-11-10 | 2015-11-10 | Expansion joint's hydrostatic pressing testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890728.6U CN205120507U (en) | 2015-11-10 | 2015-11-10 | Expansion joint's hydrostatic pressing testing arrangement |
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| Publication Number | Publication Date |
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| CN205120507U true CN205120507U (en) | 2016-03-30 |
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| CN201520890728.6U Active CN205120507U (en) | 2015-11-10 | 2015-11-10 | Expansion joint's hydrostatic pressing testing arrangement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223083A (en) * | 2015-11-10 | 2016-01-06 | 苏州久美玻璃钢股份有限公司 | A kind of hydrostatic pressing proving installation of expansion joint |
| CN107646221A (en) * | 2017-11-07 | 2018-02-02 | 谢娟 | A kind of adjustable device for improved soil |
-
2015
- 2015-11-10 CN CN201520890728.6U patent/CN205120507U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223083A (en) * | 2015-11-10 | 2016-01-06 | 苏州久美玻璃钢股份有限公司 | A kind of hydrostatic pressing proving installation of expansion joint |
| CN107646221A (en) * | 2017-11-07 | 2018-02-02 | 谢娟 | A kind of adjustable device for improved soil |
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