CN204202865U - A kind of filling opening performance test experiment table - Google Patents
A kind of filling opening performance test experiment table Download PDFInfo
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- CN204202865U CN204202865U CN201420687157.1U CN201420687157U CN204202865U CN 204202865 U CN204202865 U CN 204202865U CN 201420687157 U CN201420687157 U CN 201420687157U CN 204202865 U CN204202865 U CN 204202865U
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- filling opening
- liquid nitrogen
- valve
- solenoid valve
- filling
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Abstract
The utility model discloses a kind of filling opening performance test experiment table.It comprises liquid first nitrogen vent discharge magnet valve, liquid nitrogen filling solenoid valve, the second liquid nitrogen vent discharge magnet valve, safety valve, tensimeter, stop valve, counter, two-position-five-way solenoid valve, air strainer, air compressor, cylinder, PLC, threaded connector, filling opening housing, filling opening spring, filling opening spool, blind flange, cylindrical housings, heat insulation layer, back and forth axle, annular shaft back-up block, annular fastening block, support.The utility model is opened the control realization of solenoid valve automatically by PLC, rupturing operation, significantly decrease the workload of test and manually-operated potential safety hazard, sealed at low temperatures by simple axle back-up block, can conveniently process and dismounting, cavity space on the right side of test board at the liquid nitrogen of Buffer leak, can add the stability of device.While realizing performance test, easily can realize the low temperature test in serviceable life of sample.
Description
Technical field
The utility model relates to performance test experiment table, particularly relates to a kind of filling opening performance test experiment table.
Background technology
Liquefied natural gas (LNG) needs to carry out filling of rock gas by filling opening in transportation, and the serviceability of natural gas mouth has a very important role for the Storage Box transportation safety of liquefied natural gas (LNG).
The testing standard that filling opening is relevant is defined in " GB GB/T 25986 ", filling opening need move in circles under low temperature liquid nitrogen condition unlatchings, closedown carry out air tightness test again 1000 times, when filling opening is closed, inside needs the pressure ensureing certain hour 1.6MPa.Because the power of backing down opening filling opening needs is comparatively large, cycle index is more, carries out loop test not only require great effort to filling opening, and time-consuming.
The proportion shared in worldwide energy utilizes along with liquefied natural gas (LNG) is more and more higher, use relevant equipment requirement also more and more higher to liquefied natural gas (LNG), the testing amount of liquefied natural gas (LNG) associated transportation, operative installations also significantly increases, traditional manual inspection mode can not meet the demands, and the robotization demand of pick-up unit is very urgent.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of filling opening performance test experiment table.
Filling opening performance test experiment table comprises the first liquid nitrogen vent discharge magnet valve, liquid nitrogen filling solenoid valve, the second liquid nitrogen vent discharge magnet valve, safety valve, tensimeter, stop valve, counter, two-position-five-way solenoid valve, air strainer, air compressor, cylinder, PLC, threaded connector, filling opening housing, filling opening spring, filling opening spool, blind flange, cylindrical housings, heat insulation layer, back and forth axle, annular shaft back-up block, annular fastening block, support;
Reciprocal axle is provided with in cylindrical housings, reciprocal outer shaft sleeve has annular shaft back-up block, annular fastening block, cylindrical housings right-hand member is provided with end cap, cylindrical housings left end is provided with blind flange, blind flange left end is provided with filling opening housing, filling opening enclosure interior is equipped with filling opening spring and filling opening spool, filling opening spool right-hand member withstands the left end of reciprocal axle, reciprocal axle right-hand member and cylinders, filling opening housing left end is threaded connection head and is connected with the first liquid nitrogen vent discharge magnet valve, cylinder, blind flange is fixed on support, cylindrical housings is provided with liquid nitrogen filling solenoid valve, second liquid nitrogen vent discharge magnet valve, safety valve, tensimeter, stop valve, PLC is by I/O interface and the first liquid nitrogen vent discharge magnet valve, liquid nitrogen filling solenoid valve, second liquid nitrogen vent discharge magnet valve, tensimeter, counter is connected, the S end of two-position-five-way solenoid valve is connected with PLC respectively with R end, the air intake opening of cylinder is held with the A of two-position-five-way solenoid valve and is connected, the gas outlet of cylinder is held with the B of two-position-five-way solenoid valve and is connected, the P end of two-position-five-way solenoid valve is connected with air compressor through air strainer, heat insulation layer is provided with outside cylindrical housings.
The annular being provided with annular shaft back-up block between described annular fastening block and cylindrical housings inwall leaks hot cushion space.Described PLC (12) is Siemens SIMATIC S7-200 SMART type.
The utility model is opened the control realization of solenoid valve automatically by PLC, rupturing operation, significantly decrease the workload of test and manually-operated potential safety hazard, sealed at low temperatures by simple axle back-up block, can conveniently process and dismounting, cavity space on the right side of test board at the liquid nitrogen of Buffer leak, can add the stability of device.While realizing performance test, easily can realize the low temperature test in serviceable life of sample.
The utility model is opened the control realization of solenoid valve automatically by PLC, rupturing operation, significantly decrease the workload of test and manually-operated potential safety hazard, sealed at low temperatures by simple axle back-up block, can conveniently process and dismounting, cavity space on the right side of test board at the liquid nitrogen of Buffer leak, can add the stability of device.While realizing performance test, easily can realize the low temperature test in serviceable life of sample.
Accompanying drawing explanation
Fig. 1 is the structural representation of filling opening performance test experiment table;
In figure, the first liquid nitrogen vent discharge magnet valve 1, liquid nitrogen filling solenoid valve 2, second liquid nitrogen vent discharge magnet valve 3, safety valve 4, tensimeter 5, stop valve 6, counter 7, two-position-five-way solenoid valve 8, air strainer 9, air compressor 10, cylinder 11, PLC 12, threaded connector 13, filling opening housing 14, filling opening spring 15, filling opening spool 16, blind flange 17, cylindrical housings 18, heat insulation layer 19, back and forth axle 20, annular shaft back-up block 21, annular fastening block 22, support 23.
Embodiment
As shown in Figure 1, filling opening performance test experiment table comprises the first liquid nitrogen vent discharge magnet valve 1, liquid nitrogen filling solenoid valve 2, second liquid nitrogen vent discharge magnet valve 3, safety valve 4, tensimeter 5, stop valve 6, counter 7, two-position-five-way solenoid valve 8, air strainer 9, air compressor 10, cylinder 11, Siemens SIMATIC S7-200 SMART type PLC 12, threaded connector 13, filling opening housing 14, filling opening spring 15, filling opening spool 16, blind flange 17, cylindrical housings 18, heat insulation layer 19, reciprocal axle 20, annular shaft back-up block 21, annular fastening block 22, support 23.
Reciprocal axle is provided with in cylindrical housings, reciprocal outer shaft sleeve has annular shaft back-up block, annular fastening block, cylindrical housings right-hand member is provided with end cap, cylindrical housings left end is provided with blind flange, blind flange left end is provided with filling opening housing, filling opening enclosure interior is equipped with filling opening spring and filling opening spool, filling opening spool right-hand member withstands the left end of reciprocal axle, reciprocal axle right-hand member and cylinders, filling opening housing left end is threaded connection head and is connected with the first liquid nitrogen vent discharge magnet valve, cylinder, blind flange is fixed on support, cylindrical housings is provided with liquid nitrogen filling solenoid valve, second liquid nitrogen vent discharge magnet valve, safety valve, tensimeter, stop valve, PLC is by I/O interface and the first liquid nitrogen vent discharge magnet valve, liquid nitrogen filling solenoid valve, second liquid nitrogen vent discharge magnet valve, tensimeter, counter is connected, the S end of two-position-five-way solenoid valve is connected with PLC respectively with R end, the air intake opening of cylinder is held with the A of two-position-five-way solenoid valve and is connected, the gas outlet of cylinder is held with the B of two-position-five-way solenoid valve and is connected, the P end of two-position-five-way solenoid valve is connected with air compressor through air strainer, heat insulation layer is provided with outside cylindrical housings.
The annular being provided with annular shaft back-up block between described annular fastening block and cylindrical housings inwall leaks hot cushion space.Described PLC (12) is Siemens SIMATIC S7-200 SMART type.
The method of testing of filling opening performance test experiment table is: when a circulation starts, all solenoid valves are in off-position, first give the S end energising of two-position-five-way solenoid valve, air compressor is inflated in cylinder, cylinder controls a reciprocal axial left side and backs down filling opening spool, simultaneously to liquid nitrogen filling solenoid valves, filling liquid nitrogen is until the pressure of the cylindrical housings inside be communicated with filling opening reaches the 1.6MPa of regulation in GB/T 25986, now PLC judges that the pressure signal received reaches 1.6MPa, the S of liquid nitrogen filling solenoid valve two-position-five-way solenoid valve is made to hold power-off, stop filling liquid nitrogen, treat that cylindrical housings internal pressure remains on after 1.6MPa reaches 2 seconds, PLC controls the R end energising of two-position-five-way solenoid valve, and air compressor quits work, and cylinder controls reciprocal axle and moves right, and filling opening is closed, release the liquid nitrogen of solenoid valves, cylindrical housings of releasing inside to the second liquid nitrogen, now filling opening inside is also closed with the liquid nitrogen of 1.6MPa, thus ensures the 1.6MPa pressure in filling opening with regulation in GB/T 25986, keep after 3 seconds, the liquid nitrogen of release solenoid valves, internal residual of releasing to the first liquid nitrogen, then give the first liquid nitrogen vent discharge magnet valve power-off.Now all solenoid valves are all in closed condition again, complete a filling opening performance test, start next round circulation; After a circulation completes, PLC makes meter reading add one to counter output signal, presets cycle index, reaches halt system working cycle after cycle index.
Claims (3)
1. a filling opening performance test experiment table, it is characterized in that: comprise the first liquid nitrogen vent discharge magnet valve (1), liquid nitrogen filling solenoid valve (2), second liquid nitrogen vent discharge magnet valve (3), safety valve (4), tensimeter (5), stop valve (6), counter (7), two-position-five-way solenoid valve (8), air strainer (9), air compressor (10), cylinder (11), PLC (12), threaded connector (13), filling opening housing (14), filling opening spring (15), filling opening spool (16), blind flange (17), cylindrical housings (18), heat insulation layer (19), reciprocal axle (20), annular shaft back-up block (21), annular fastening block (22), support (23),
Reciprocal axle (20) is provided with in cylindrical housings (18), reciprocal outer shaft sleeve has annular shaft back-up block (21), annular fastening block (22), cylindrical housings right-hand member is provided with end cap, cylindrical housings left end is provided with blind flange (17), blind flange (17) left end is provided with filling opening housing (14), filling opening enclosure interior is equipped with filling opening spring (15) and filling opening spool (16), filling opening spool right-hand member withstands the left end of reciprocal axle (20), reciprocal axle right-hand member is connected with cylinder (11), filling opening housing left end is threaded connection head (14) and is connected with the first liquid nitrogen vent discharge magnet valve (1), cylinder (11), blind flange (17) is fixed on support (23), cylindrical housings is provided with liquid nitrogen filling solenoid valve (2), second liquid nitrogen vent discharge magnet valve (3), safety valve (4), tensimeter (5), stop valve (6), PLC (12) is by I/O interface and the first liquid nitrogen vent discharge magnet valve (1), liquid nitrogen filling solenoid valve (2), second liquid nitrogen vent discharge magnet valve (3), tensimeter (5), counter (7) is connected, the S end of two-position-five-way solenoid valve (8) is connected with PLC (12) respectively with R end, the air intake opening of cylinder (11) is held with the A of two-position-five-way solenoid valve (8) and is connected, the gas outlet of cylinder is held with the B of two-position-five-way solenoid valve (8) and is connected, the P end of two-position-five-way solenoid valve (8) is connected with air compressor (10) through air strainer (9), heat insulation layer (19) is provided with outside cylindrical housings (18).
2. a kind of filling opening performance test experiment table as claimed in claim 1, is characterized in that the annular being provided with annular shaft back-up block between described annular fastening block (22) and cylindrical housings (18) inwall leaks hot cushion space.
3. a kind of filling opening performance test experiment table as claimed in claim 1, is characterized in that described PLC (12) is for Siemens SIMATIC S7-200 SMART type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687157.1U CN204202865U (en) | 2014-11-17 | 2014-11-17 | A kind of filling opening performance test experiment table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687157.1U CN204202865U (en) | 2014-11-17 | 2014-11-17 | A kind of filling opening performance test experiment table |
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| Publication Number | Publication Date |
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| CN204202865U true CN204202865U (en) | 2015-03-11 |
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| CN201420687157.1U Active CN204202865U (en) | 2014-11-17 | 2014-11-17 | A kind of filling opening performance test experiment table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359665A (en) * | 2014-11-17 | 2015-02-18 | 江苏克劳特低温技术有限公司 | Liquid adding opening performance test experiment table and method |
| CN112362339A (en) * | 2020-11-16 | 2021-02-12 | 上海廷本流体控制有限公司 | Life testing device for low-temperature valve with gas filling port |
-
2014
- 2014-11-17 CN CN201420687157.1U patent/CN204202865U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359665A (en) * | 2014-11-17 | 2015-02-18 | 江苏克劳特低温技术有限公司 | Liquid adding opening performance test experiment table and method |
| CN112362339A (en) * | 2020-11-16 | 2021-02-12 | 上海廷本流体控制有限公司 | Life testing device for low-temperature valve with gas filling port |
| CN112362339B (en) * | 2020-11-16 | 2023-09-26 | 上海廷本流体控制有限公司 | Life testing device for low-temperature valve with air filling port |
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