CN202851497U - Reliever used for pressure test of injected water in steel tube - Google Patents
Reliever used for pressure test of injected water in steel tube Download PDFInfo
- Publication number
- CN202851497U CN202851497U CN 201220567105 CN201220567105U CN202851497U CN 202851497 U CN202851497 U CN 202851497U CN 201220567105 CN201220567105 CN 201220567105 CN 201220567105 U CN201220567105 U CN 201220567105U CN 202851497 U CN202851497 U CN 202851497U
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- China
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- spool
- oil
- valve body
- end surface
- branch road
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- Expired - Fee Related
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Abstract
The utility model discloses a reliever used for a pressure test of injected water in a steel tube. The reliever used for the pressure test of injected water in the steel tube comprises a valve body and a valve core. The valve core is arranged on the center position inside the valve body. An oil inlet cavity is formed in the central portion of the valve core. A bottom drainage port is formed in the middle cavity of the valve body outside the valve core. A bottom oil outlet cavity is formed in the bottom of the valve body which is at the same side with the bottom oil drainage port. The oil outlet cavity comprises two sections of oil ways. An upper end face oil outlet cavity branch is arranged on the upper end of the valve core, and a lower end face oil outlet cavity branch is arranged on the lower end face of the valve core. A section of pressure regulation branch is connected between the bottom oil outlet cavity and the bottom oil drainage port. The reliever used for the pressure test of injected water in the steel tube has the advantages that original pressure balance of the oil outlet section can be kept and timely replacement or maintenance is convenient to achieve when a problem occurs in a pipeline. Meanwhile, due to the fact that the oil outlet cavity and the oil drainage port are arranged at the bottom of the valve and a pipeline is ranged between the oil outlet cavity and the oil drainage port, pressure between the oil outlet cavity and the oil drainage port is convenient to regulate and bottom test and oil discharge are convenient.
Description
Technical field
The utility model relates to the hydraulics field, relates in particular to a kind of decompressor that injects hydraulic pressure test for steel pipe.
Background technique
At the hydraulic equipment of rubber forming machine to the steel pipe water pressure test, must guarantee oil-water balance state in whole hydrostatic test process, must guarantee that in this process Simultaneous Pressure changes, otherwise can occur steel pipe is damaged by pressure compressive strain and do not reach the purpose of pressure testing.General operation is that at oil pressure mouth dress proportional pressure-reducing valve or proportional pressure control valve, pressure transducer gathers the pressure data of water pump mouth at water pump mouth dress pressure transducer, pass to PLC, PLC sends instructions to Proportional valve again, produces an oil pressure that is slightly larger than hydraulic pressure, keeps this oil-water balance.When structure of relief pressure valve is set, usually all be that drain tap and the outer end that goes out oil pocket are opened in respectively on the valve body of spool both sides, detecting or during fuel-displaced process, detection then needs to be positioned at the valve body both sides and tests out respectively oil pocket and drain tap, fuel-displaced then the needs also arranges respectively twice to guarantee fuel-displaced process in both sides, thereby this structure exerts a certain influence to oil extraction efficient and pressure measurement speed; Simultaneously, the relatively poor deficiency of pressure harmony between oil pocket and the drain tap is not easy to comprehensive detection.
The model utility content
The purpose of this utility model provides a kind ofly to be had a plurality of draining branch roads and goes out the oil pocket branch road, is conducive to keep the oil-water balance requirement, is convenient to adjust the pressure between oil pocket and the drain tap and detects in the same way and fuel-displaced be used for the decompressor that steel pipe injects hydraulic pressure test, to solve many deficiencies of prior art.
The purpose of this utility model is come specific implementation by the following technical programs:
A kind of decompressor that injects hydraulic pressure test for steel pipe, comprise valve body and spool, the valve inner center position arranges spool, be positioned at the center spool position and offer an oil suction chamber, the valve chamber that is positioned at the spool outside offers the bottom surface drain tap, offer the bottom surface with the valve body of drain tap the same side, bottom surface bottom and go out oil pocket and this bottom surface and go out oil pocket and formed by two sections oil circuits, namely be positioned at spool upper-end surface, spool lower end surface and offer respectively successively one section upper-end surface and go out oil pocket branch road, lower end surface and go out oil pocket branch road and this two branch roads and all go out oil pocket with the bottom surface and be communicated with; Described bottom surface goes out to be connected one section pressure between oil pocket and the bottom surface drain tap regulates branch road.
Described bottom surface drain tap is comprised of two sections oil circuits, namely is positioned at spool upper-end surface, spool lower end surface and offers respectively successively one section upper-end surface draining branch road, one section lower end surface draining branch road; Be positioned at valve body wherein the inner chamber of an end one control mouthful is set, described pressure is regulated in the branch road a movable plug is set.
The beneficial effect that injects the decompressor of hydraulic pressure test for steel pipe described in the utility model is: by two draining branch roads of being drawn by spool upper-end surface, spool lower end surface partly are set in drain tap, simultaneously, arrange two in fuel-displaced cavity segment and go out the oil pocket branch road by what drew spool upper-end surface, spool lower end surface, be conducive to keep the original pressure balance of oil bleeding part, when a pipeline goes wrong, be convenient to change timely or safeguard; Simultaneously, will go out oil pocket and drain tap and be arranged at simultaneously between valve bottom position and the two and be connected with pipeline, and be convenient to adjust the pressure between oil pocket and the drain tap and carry out floor detection and fuel-displaced, in the process that keeps oil-water balance to test, convenient operation.
Description of drawings
The below is described in further detail the utility model with embodiment with reference to the accompanying drawings.
Fig. 1 is the described structural drawing that injects the decompressor of hydraulic pressure test for steel pipe of the utility model embodiment.
Among the figure: 1, valve body; 2, bottom surface drain tap; 3, the bottom surface goes out oil pocket; 4, oil suction chamber; 5, control mouth; 6, spool; 7, upper-end surface draining branch road; 8, lower end surface draining branch road; 9, the upper-end surface goes out the oil pocket branch road; 10, the lower end surface goes out the oil pocket branch road; 11, movable plug; 12, pressure is regulated branch road.
Embodiment
As shown in Figure 1, the described decompressor that injects hydraulic pressure test for steel pipe of the utility model embodiment, comprise valve body 1 and spool 6, described valve body 1 inside center position arranges spool 6, be positioned at valve body 1 wherein the inner chamber of an end one section control mouthfuls 5 is set, be positioned at spool 6 center portions and be provided with an oil suction chamber 4, valve body 1 chamber that is positioned at spool 6 outsides is offered bottom surface drain tap 2, offer the bottom surface with valve body 1 bottom of bottom surface drain tap 2 the same sides and go out oil pocket 3 and this bottom surface and go out oil pocket 3 and formed by two sections oil circuits, namely be positioned at spool 6 upper-end surfaces, spool 6 lower end surfaces are offered respectively successively one section upper-end surface and are gone out oil pocket branch road 9, the lower end surface goes out oil pocket branch road 10 and this two branch roads and all goes out oil pocket 3 with the bottom surface and be communicated with; Simultaneously, described bottom surface drain tap 2 is comprised of two sections oil circuits, namely be positioned at spool 6 upper-end surfaces, spool 6 lower end surfaces are offered respectively one section upper-end surface draining branch road 7, one section lower end surface draining branch road 8 successively, in the process that keeps the oil-water balance experiment, can guarantee that oil circuit flows to complete direction according to hydrostatic test control mouth and carries out, be conducive to keep the original pressure balance of fuel-displaced part; In addition, described bottom surface goes out to be connected between oil pocket 3 and the bottom surface drain tap 2 one section pressure to be regulated branch road 12 and this pressure and regulates that branch road 12 is interior to arrange a movable plug 11, and the inspector can detect pressure condition to carry out oil extraction, convenient operation in this section.
Claims (4)
1. one kind is used for the decompressor that steel pipe injects hydraulic pressure test, comprise valve body (1) and spool (6), valve body (1) inside center position arranges spool (6), it is characterized in that: be positioned at spool (6) center portion and offer an oil suction chamber (4), valve body (1) chamber that is positioned at spool (6) outside is offered bottom surface drain tap (2), offer the bottom surface with the valve body (1) of bottom surface drain tap (2) the same side bottom and go out oil pocket (3) and this bottom surface and go out oil pocket (3) and formed by two sections oil circuits, namely be positioned at spool (6) upper-end surface, spool (6) lower end surface is offered respectively successively one section upper-end surface and is gone out oil pocket branch road (9), the lower end surface goes out oil pocket branch road (10) and this two branch roads and all goes out oil pocket (3) with the bottom surface and be communicated with; Described bottom surface goes out to be connected one section pressure between oil pocket (3) and the bottom surface drain tap (2) regulates branch road (12).
2. a kind of decompressor that injects hydraulic pressure test for steel pipe as claimed in claim 1, it is characterized in that: described bottom surface drain tap (2) is comprised of two sections oil circuits, namely is positioned at spool (6) upper-end surface, spool (6) lower end surface is offered respectively one section upper-end surface draining branch road (7), one section lower end surface draining branch road (8) successively.
3. as claimed in claim 1ly a kind ofly inject the decompressor of hydraulic pressure test for steel pipe, it is characterized in that: be positioned at valve body (1) wherein the inner chamber of an end one control mouthful (5) is set.
4. a kind of decompressor for steel pipe injection hydraulic pressure test as claimed in claim 1 is characterized in that: in the described pressure adjusting branch road (12) a movable plug (11) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567105 CN202851497U (en) | 2012-10-31 | 2012-10-31 | Reliever used for pressure test of injected water in steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567105 CN202851497U (en) | 2012-10-31 | 2012-10-31 | Reliever used for pressure test of injected water in steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851497U true CN202851497U (en) | 2013-04-03 |
Family
ID=47982704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220567105 Expired - Fee Related CN202851497U (en) | 2012-10-31 | 2012-10-31 | Reliever used for pressure test of injected water in steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996548A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Pressure reduction device for steel pipe injection water pressure test |
-
2012
- 2012-10-31 CN CN 201220567105 patent/CN202851497U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996548A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Pressure reduction device for steel pipe injection water pressure test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20131031 |