CN203070121U - Pressure charging system and stabilizing control system of steel pipe hydraulic pressure tester - Google Patents
Pressure charging system and stabilizing control system of steel pipe hydraulic pressure tester Download PDFInfo
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- CN203070121U CN203070121U CN 201220675081 CN201220675081U CN203070121U CN 203070121 U CN203070121 U CN 203070121U CN 201220675081 CN201220675081 CN 201220675081 CN 201220675081 U CN201220675081 U CN 201220675081U CN 203070121 U CN203070121 U CN 203070121U
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Abstract
The utility model discloses a pressure charging system and stabilizing control system of a steel pipe hydraulic pressure tester, comprising an oil pressure system and a hydraulic pressure system. The oil pressure system and the hydraulic pressure system are respectively connected with an electric-hydraulic commutating valve, a proportion overflow valve and a supercharger; the supercharger is controlled by the proportion overflow valve and the electric-hydraulic commutating valve; the hydraulic pressure system is provided with a hydraulic pressure sensor; an oil pressure sensor and a pressure gauge are arranged in the oil pressure system; the oil pressure system comprises an oil pump assembly and an oil filter; the hydraulic pressure system comprises a water inlet system and a water valve; and the hydraulic pressure sensor is connected with a computer for data interaction. According to the pressure charging system and stabilizing control system of a steel pipe hydraulic pressure tester, the proportional pressure valve is cooperated with the pressure sensors, a numerical control system receives the signals fed back by the hydraulic pressure sensor, the oil pressure value is calculated through signal amplification, A/D conversion and value comparison to control the pressure of the proportion overflow valve, thereby oil-water pressure balance is achieved, the structure is simple, the hydraulic pressure fluctuation range is small, and the pressure fluctuation is guaranteed in the scope prescribed by the API standard when the pressure is stabilized.
Description
Technical field
The utility model relates to a kind of hydraulic control system, specifically relates to a kind of steel pipe hydrostatic tester supercharger voltage stabilizing dynamic proportion pressure follow control system.
Background technology
Hydrostatic testing machine is the important detection operation of in the oil gas conveying steel pipe manufacture process, and many product standards have proposed strict voltage stabilizing requirement to hydrostatic testing machine.Therefore, the quality of voltage regulation performance becomes the important indicator of weighing the hydrostatic testing machine performance in hydraulic testing process.But because after hydraulic pressure value reaches the standard code test pressure during hydraulic testing, pressurize certain hour (be generally 10-15 second), and pressure surge is no more than 0.5MPa.But the system leak in observation process can't be avoided again.Therefore, how to guarantee that in hydraulic testing process voltage stabilizing curve meets the API standard-required and also becomes focus and difficult point in this detection operation.
The utility model content
The purpose of this utility model be to design a kind of when satisfying voltage stabilizing in the hydraulic testing process pressure surge guarantee supercharger voltage stabilizing dynamic proportion pressure follow control system in the standard code scope.
For reaching above-mentioned technique effect, the utility model adopts following technical scheme: steel pipe hydrostatic tester supercharging voltage stabilizing control system comprises: oil hydraulic system and hydraulic pressure system, oil hydraulic system is connected with electro-hydraulic reversing valve, proportional pressure control valve and supercharger respectively with hydraulic pressure system, supercharger is by proportional pressure control valve and electro-hydraulic reversing valve control, hydraulic pressure system is provided with hydraulic pressure sensor, is provided with oil pressure sensor and tensimeter in the oil hydraulic system.
Preferably, described oil hydraulic system comprises oil pump unit and oil filter.
Preferably, described hydraulic pressure system comprises water inlet system and filling valve.
Preferably, described hydraulic pressure sensor connection computing machine carries out data interaction.
The beneficial effects of the utility model:
The disclosed steel pipe hydrostatic tester supercharging of the utility model voltage stabilizing control system, adopt proportional pressure valve and pressure transducer associated working, digital control system receives the signal of hydraulic pressure sensor feedback, calculate the pressure that oil pressure value comes the control ratio surplus valve by amplification, D/A conversion and comparison size to signal, thereby make oil, water pressure balance, the utility model is simple in structure, and the water pressure fluctuations scope is little, and pressure surge is in the scope of API standard code when guaranteeing voltage stabilizing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1-oil pump unit; 2-oil filter; 3-oil pressure sensor; 4-tensimeter; 5-proportional pressure control valve; 6-electro-hydraulic reversing valve; 7-water inlet system; 8-supercharger; 9-hydraulic pressure sensor; 10-filling valve.
Embodiment
As shown in Figure 1, a kind of steel pipe hydrostatic tester supercharging voltage stabilizing control system, comprise oil hydraulic system and hydraulic pressure system, oil hydraulic system is connected with electro-hydraulic reversing valve 6, proportional pressure control valve 5 and supercharger 8 respectively with hydraulic pressure system, supercharger 8 is by proportional pressure control valve 5 and electro-hydraulic reversing valve 6 controls, hydraulic pressure system is provided with hydraulic pressure sensor 9, be provided with oil pressure sensor 3 and tensimeter 4 in the oil hydraulic system, oil hydraulic system comprises oil pump unit 1 and oil filter 2, hydraulic pressure system comprises water inlet system 7 and filling valve 10, and hydraulic pressure sensor 9 connects computing machine and carries out data interaction.
Hydrostatic testing machine is after entering packing state, and hydraulic pressure sensor 9 is passed to computing machine with detected force value, and computing machine is computing by analysis, and fuel injection pressure signal is sent to the proportional pressure control valve 5 of control supercharger 8, thereby makes oil, water keep balance.The supercharger oil pressure value is detected by oil pressure sensor 3 and obtains, and the supercharger oil pressure is by proportional pressure control valve 5 and electro-hydraulic reversing valve 6 controls.Electro-hydraulic reversing valve 6 is after entering packing state, hydraulic pressure value and oil pressure value ratio are fixed numbers, after hydraulic pressure value reaches setting numerical value, hydraulic pressure sensor 9 is passed to computing machine with detected value and is calculated oil pressure value and pass to proportional pressure control valve 5, make profit remain equilibrium state, remain unchanged thereby make hydraulic pressure value be always certain value.Fluctuation is in the scope of API standard code when guaranteeing voltage stabilizing.Satisfy the user fully to the specific (special) requirements of steel pipe hydrostatic testing.
Above-described only is preferred embodiment of the present utility model.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the utility model, as the common practise of this area, can also make other equivalent modifications and improvement, also should be considered as protection domain of the present utility model.
Claims (4)
1. steel pipe hydrostatic tester supercharging voltage stabilizing control system, comprise: oil hydraulic system and hydraulic pressure system, it is characterized in that: oil hydraulic system is connected with electro-hydraulic reversing valve, proportional pressure control valve and supercharger respectively with hydraulic pressure system, supercharger is by proportional pressure control valve and electro-hydraulic reversing valve control, hydraulic pressure system is provided with hydraulic pressure sensor, is provided with oil pressure sensor and tensimeter in the oil hydraulic system.
2. according to the described steel pipe hydrostatic tester supercharging of claim 1 voltage stabilizing control system, it is characterized in that: described oil hydraulic system comprises oil pump unit and oil filter.
3. according to the described steel pipe hydrostatic tester supercharging of claim 1 voltage stabilizing control system, it is characterized in that: described hydraulic pressure system comprises water inlet system and filling valve.
4. according to the described steel pipe hydrostatic tester supercharging of claim 1 voltage stabilizing control system, it is characterized in that: described hydraulic pressure sensor connects computing machine and carries out data interaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675081 CN203070121U (en) | 2012-12-10 | 2012-12-10 | Pressure charging system and stabilizing control system of steel pipe hydraulic pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675081 CN203070121U (en) | 2012-12-10 | 2012-12-10 | Pressure charging system and stabilizing control system of steel pipe hydraulic pressure tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203070121U true CN203070121U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201220675081 Expired - Fee Related CN203070121U (en) | 2012-12-10 | 2012-12-10 | Pressure charging system and stabilizing control system of steel pipe hydraulic pressure tester |
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| CN (1) | CN203070121U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355433A (en) * | 2017-07-06 | 2017-11-17 | 杭州华泰电液成套技术有限公司 | Electric connector pulling-out force test device and its method |
| CN109027697A (en) * | 2018-09-18 | 2018-12-18 | 广东核电合营有限公司 | A kind of 3 grades of HDPE method for detecting pipeline of nuclear safety |
| CN109115624A (en) * | 2018-09-28 | 2019-01-01 | 中国重型机械研究院股份公司 | A kind of pressure charging system one tube end hydrostatic testing machine and pipe end pressure-measuring method |
-
2012
- 2012-12-10 CN CN 201220675081 patent/CN203070121U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355433A (en) * | 2017-07-06 | 2017-11-17 | 杭州华泰电液成套技术有限公司 | Electric connector pulling-out force test device and its method |
| CN109027697A (en) * | 2018-09-18 | 2018-12-18 | 广东核电合营有限公司 | A kind of 3 grades of HDPE method for detecting pipeline of nuclear safety |
| CN109115624A (en) * | 2018-09-28 | 2019-01-01 | 中国重型机械研究院股份公司 | A kind of pressure charging system one tube end hydrostatic testing machine and pipe end pressure-measuring method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20141210 |
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| EXPY | Termination of patent right or utility model |