CN108458630B - Triple pressure safety protection system and method for explosive force and heat combined loading equipment - Google Patents
Triple pressure safety protection system and method for explosive force and heat combined loading equipment Download PDFInfo
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- CN108458630B CN108458630B CN201810209791.7A CN201810209791A CN108458630B CN 108458630 B CN108458630 B CN 108458630B CN 201810209791 A CN201810209791 A CN 201810209791A CN 108458630 B CN108458630 B CN 108458630B
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- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Abstract
The invention discloses a triple pressure safety protection system of explosive force and heat combined loading equipment, which comprises a mechanical hydraulic switch positioned on a host, a measuring sensor positioned on an oil cylinder of the host and a safety sensor positioned on a hydraulic station, wherein the measuring sensor and the safety sensor realize the operation and control of measured data through a PLC. The invention also discloses a triple pressure safety protection method of the explosive force and heat composite loading equipment. The invention provides a triple pressure safety protection system aiming at high-energy, explosion and high-pressure high-risk operation, and the triple pressure safety protection system integrates automatic measurement protection, automatic safety protection and manual protection. The safety protection is ensured from three times, and when an abnormal condition occurs, the explosive force and heat combined loading device is used for the safety protection of people and machines.
Description
Technical Field
The invention relates to a safety protection control system, in particular to a triple pressure safety protection system and method of explosive force and heat combined loading equipment.
Background
In the explosive force and heat combined loading equipment, high-pressure loading is an effective means for analyzing the structural strength and the mechanical behavior of an explosive part.
However, in the high-pressure loading process, because high-energy, explosive and high-pressure high-risk operation is faced, corresponding safety protection measures are required to be adopted. At present, most of explosive force and heat composite loading equipment is independent pressure safety protection, and the protection strength and effect are questioned.
Disclosure of Invention
The invention aims to provide a triple pressure safety protection system of explosive force and heat combined loading equipment, which integrates automatic measurement protection, automatic safety protection and manual protection.
The invention is realized by the following steps:
the utility model provides a triple pressure safety protection system of explosive power thermal compound loading equipment, is including the mechanical hydraulic switch that is located the host computer, the measurement sensor that is located the host computer hydro-cylinder and the safety sensor that is located the hydraulic pressure station, and measurement sensor, safety sensor all realize the operation and the control to measured data through PLC.
In the invention, the mechanical hydraulic switch realizes manual protection; the measuring sensor and the PLC form a measuring loop, the safety sensor and the PLC form a safety loop, and the double loops realize automatic protection which is mutually independent in function.
In the invention, the safety loop can work normally even if the measuring loop has a fault. Even if the safety loop breaks down or has power failure accidentally, the manual protection can also work normally, thereby improving the effect of safety protection.
The invention also provides a triple pressure safety protection method for the explosive force and heat combined loading equipment, which comprises the following steps:
1) the measurement loop is automatically protected. The automatic measurement is carried out by adopting an independent measuring sensor, the PLC carries out automatic calculation according to a set value, when the set pressure is exceeded by 10 percent, the PLC automatically stops the actions of the upper beam and the lower beam, and simultaneously gives out sound-light alarm, and the alarm content is displayed on the computer: the pressure exceeds 10 percent.
2) The safety circuit is automatically protected. The independent safety sensor is adopted for automatic measurement, the PLC carries out automatic calculation according to a set value, when the set pressure is exceeded by 20%, all pressure release valves are automatically opened, the hydraulic pump is stopped, and the equipment releases pressure at the highest speed. Simultaneously, sound and light alarm is given out, and alarm content is displayed on a computer: the pressure exceeds 20 percent.
3) And (5) manual protection. The method is carried out manually. The limit pressure is manually set by adopting a mechanical hydraulic switch, and when the limit pressure is exceeded, the oil return tank is directly decompressed.
The invention provides a triple pressure safety protection system aiming at high-energy, explosion and high-pressure high-risk operation, and the triple pressure safety protection system integrates automatic measurement protection, automatic safety protection and manual protection. The safety protection is ensured from three times, and when an abnormal condition occurs, the explosive force and heat combined loading device is used for the safety protection of people and machines.
Drawings
FIG. 1 is a schematic diagram of the distribution of a measuring sensor, a safety sensor and a mechanical hydraulic switch;
FIG. 2 is a schematic diagram of the pressure auto-protect logic control;
FIG. 3 is an address diagram of a PLC for automatic pressure protection;
fig. 4 is a schematic diagram of the pressure auto-protection hardware.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in the attached drawing 1, the triple pressure safety protection system of the explosive force and heat combined loading device comprises a mechanical hydraulic switch 5 located on a stand column 2 of a host 1, a measuring sensor 6 located on a host oil cylinder 3 and a safety sensor 7 located on a hydraulic station 4, wherein the measuring sensor and the safety sensor realize the operation and control of measured data through a PLC.
As shown in figure 2, the pressure automatic protection logic control is realized by a PLC. When the measuring sensor measures the current pressure value, the CPU automatically calculates according to a set value, and when the overpressure is judged to be 10%, the logic relay M1.2 is closed, so that the Q0.1 of the PLC is switched on. If the measuring sensor fails, the safety sensor measures the current pressure value, the CPU automatically calculates according to a set value, and when the overpressure is judged to be 20%, the logic relay M1.4 is closed, so that the Q0.2 of the PLC is switched on. At the same time, the normally closed contact of M1.4 is opened, so that Q0.3 of the PLC is opened. The next action is performed.
As shown in fig. 3, is a pressure automatic protection PLC address diagram. Wherein Q0.1 is audible and visual alarm, Q0.2 is automatic pressure relief, and Q0.3 hydraulic pump. When the starting conditions of the acousto-optic alarm, the automatic pressure relief and the hydraulic pump are met, the two are respectively closed, so that the coils of the intermediate relays KA1, KA2 and KA3 are respectively electrified to execute the next action.
Fig. 4 is a schematic diagram of the pressure automatic protection hardware. When the overpressure is 10%, the coil of the intermediate relay KA1 is electrified, the normally open contact of the intermediate relay is closed, the buzzer HA1 is electrified, the alarm indicator lamp HA1 is electrified, and the sound-light alarm is given out. When the overpressure is 20%, the coil of the intermediate relay KA2 is electrified, the normally open contact of the coil is closed, the fast pressure relief valve bank and the slow pressure relief valve bank are connected, and the equipment is relieved at the highest speed. And meanwhile, the normally closed contact is opened, the motor of the hydraulic pump is powered off, and the work is stopped.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (1)
1. A triple pressure safety protection method of explosive force and heat combined loading equipment is characterized by comprising the following steps: the protection system comprises a mechanical hydraulic switch positioned on a host, a measuring sensor positioned on an oil cylinder of the host and a safety sensor positioned on a hydraulic station, wherein the measuring sensor and the safety sensor realize the operation and control of measured data through a PLC (programmable logic controller);
the mechanical hydraulic switch realizes manual protection; the measuring sensor and the PLC form a measuring loop, the safety sensor and the PLC form a safety loop, and the double loops realize automatic protection which is mutually independent in function;
the method comprises the following specific steps:
1) automatic protection of a measurement loop; the automatic measurement is carried out by adopting an independent measuring sensor, the PLC carries out automatic calculation according to a set value, when the set pressure is exceeded by 10 percent, the PLC automatically stops the actions of an upper beam and a lower beam connected with a hydraulic rod of the oil cylinder, and simultaneously gives out sound-light alarm, and the alarm content is displayed on the computer: the pressure exceeds 10 percent;
2) the safety circuit is automatically protected; an independent safety sensor is adopted for automatic measurement, a PLC performs automatic calculation according to a set value, when the set pressure is exceeded by 20%, all pressure release valves are automatically opened, the hydraulic pump is stopped, and the equipment releases pressure at the highest speed; simultaneously, sound and light alarm is given out, and alarm content is displayed on a computer: the pressure exceeds 20 percent;
3) manual protection; the method is carried out in a manual mode; the limit pressure is manually set by adopting a mechanical hydraulic switch, and when the limit pressure is exceeded, the oil return tank is directly decompressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810209791.7A CN108458630B (en) | 2018-03-14 | 2018-03-14 | Triple pressure safety protection system and method for explosive force and heat combined loading equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810209791.7A CN108458630B (en) | 2018-03-14 | 2018-03-14 | Triple pressure safety protection system and method for explosive force and heat combined loading equipment |
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| Publication Number | Publication Date |
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| CN108458630A CN108458630A (en) | 2018-08-28 |
| CN108458630B true CN108458630B (en) | 2020-10-16 |
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| CN201810209791.7A Active CN108458630B (en) | 2018-03-14 | 2018-03-14 | Triple pressure safety protection system and method for explosive force and heat combined loading equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109489730A (en) * | 2018-12-20 | 2019-03-19 | 中国工程物理研究院化工材料研究所 | The hot Combined Loading equipment operation multi-screen display method of explosive power |
| CN109443447B (en) * | 2018-12-20 | 2021-04-27 | 中国工程物理研究院化工材料研究所 | Explosive force and heat composite loading control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103969174B (en) * | 2014-05-06 | 2016-09-14 | 西安近代化学研究所 | Explosive wastewater induction pressure continues loading experimental apparatus |
| KR101587119B1 (en) * | 2014-12-26 | 2016-01-21 | 한라대학교 산학협력단 | Oil leakage dectecting device of hydraulic valve |
| CN104668974B (en) * | 2015-02-13 | 2017-02-01 | 哈尔滨工业大学 | PLC (Programmable Logic Controller) hydraulic station-based pressure/flow rate closed-loop control method |
| CN104879114B (en) * | 2015-06-04 | 2019-09-10 | 濮阳市百福瑞德石油科技有限公司 | Drilling safety monitoring and intelligent protection system |
| CN105128320B (en) * | 2015-07-30 | 2017-06-06 | 河南中拓石油工程技术股份有限公司 | A kind of pipe U-shaped folded deformation machines of portable PE |
| CN205664343U (en) * | 2016-06-06 | 2016-10-26 | 佛山市顺德区海明晖电子有限公司 | Pressure protection system |
| CN106423529A (en) * | 2016-08-31 | 2017-02-22 | 江苏羚羊水泥工程技术有限公司 | Hydraulic control system for vertical grinding machine and control method |
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