CN202132584U - Pneumatic actuator for product stress test (PST) on-line stroke test - Google Patents
Pneumatic actuator for product stress test (PST) on-line stroke test Download PDFInfo
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- CN202132584U CN202132584U CN201120229736U CN201120229736U CN202132584U CN 202132584 U CN202132584 U CN 202132584U CN 201120229736 U CN201120229736 U CN 201120229736U CN 201120229736 U CN201120229736 U CN 201120229736U CN 202132584 U CN202132584 U CN 202132584U
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Abstract
The utility model discloses a pneumatic actuator for a product stress test (PST) on-line stroke test, which can conveniently conduct the PST on-line stroke test for the pneumatic actuator and comprises a mechanical actuating mechanism and an electrical control system. Air vents are arranged on the side walls of a spring cylinder and a cylinder of the mechanical actuating mechanism, a two-position three-way electromagnetic valve II, a two-position two-way pneumatic valve I and a two-position two-way pneumatic valve II are added in the electrical control system, one connector of the two-position two-way pneumatic valve I is respectively communicated with the air vents arranged on the side walls of the spring cylinder and the cylinder, and the other connector of the two-position two-way pneumatic valve I is communicated with the two-position three-way magnetic valve II. Two connectors of the two-position two-way pneumatic valve II are respectively connected to a pipeline between a two-position three-way electromagnetic valve I and a filter pressure regulating valve. The other connector of the two-position three-way electromagnetic valve II is connected with a pipeline between the filter pressure regulating valve and the two-position two-way pneumatic valve I, and a third connector of the two-position three-way electromagnetic valve II is connected with a remote control box.
Description
Technical field
The utility model relates to a kind of pneumatic actuator, especially relates to a kind of PST and tests pneumatic actuator at lineal travel.
Background technique
In the The field of pipeline and valve; Because of causing supporting with it final controlling element, various situation that possibly occur breaks down; The general conventional one action pneumatic actuator that uses is stopping to the mechanical actuating mechanism air feed or is stopping in the annex power supply of electric control system; Final controlling element will reset under the spring force effect of mechanical actuating mechanism, and the result of spring reset depends on the abort situation of final controlling element, complete opening valve or complete throttle down.And at the pipeline location of some special keys; On-the-spot Environmental Conditions require final controlling element can not be immediately when emergency occurring throttle down fully; Need remain on the opening state of several angle; Simultaneously, when emergency occurring, can effectively be held open state, need irregularly final controlling element to be tested in order to guarantee the valve match mechanism.In this Environmental Conditions with under requiring; Existing one action pneumatic actuator can't finish this specific function requirement; Promptly can't accomplish the test function of PST at lineal travel; Can not satisfy final controlling element at the complete immediately throttle down of the Shi Buhui that breaks down, and make valve remain on the operating conditions of the opening state of several angle.
The model utility content
The utility model technical problem to be solved is: provide a kind of and can be easily carry out PST to pneumatic actuator and test pneumatic actuator at the PST of lineal travel test at lineal travel; This final controlling element can also be when final controlling element be out of order; Valve can not closed immediately, and remain on certain opening state.
The technological scheme that adopts for solving the problems of the technologies described above is: a kind of PST tests pneumatic actuator at lineal travel, comprises mechanical actuating mechanism and electric control system; Mechanical actuating mechanism comprises spring cylinder and the cylinder that is provided with transfer port respectively in the end; Electric control system comprises a two-bit triplet electromagnetic valve I, a filtration pressure regulator valve and a telecontrol case; An interface of two-bit triplet electromagnetic valve I is connected with the transfer port of spring cylinder and the transfer port of cylinder respectively, and another interface is communicated with the filtration pressure regulator valve, and the 3rd interface is connected with the telecontrol case; On the sidewall of the middle part of the cylinder sidewall that constitutes mechanical actuating mechanism and spring cylinder, the also corresponding each other respectively vent that is provided with; Electric control system also includes a 2/2-way Pneumatic valve I, a 2/2-way Pneumatic valve II and a two-bit triplet electromagnetic valve II; The interface of 2/2-way Pneumatic valve I is connected with two vents respectively, and an interface of another interface and two-bit triplet electromagnetic valve II repeatedly; 2/2-way Pneumatic valve II is connected the two-bit triplet electromagnetic valve I and filters on the pipeline between the pressure regulator valve; Another interface of two-bit triplet electromagnetic valve II is connected on the pipeline that filters between pressure regulator valve and the 2/2-way Pneumatic valve I, and the 3rd interface is connected with the telecontrol case.
The beneficial effect of the utility model is: through the corresponding each other respectively vent that is provided with on the sidewall of the middle part of the cylinder sidewall of mechanical actuating mechanism and spring cylinder; And on electric control system, increase a 2/2-way Pneumatic valve I, a 2/2-way Pneumatic valve II and a two-bit triplet electromagnetic valve II; Like this; When needs use the PST test function that pneumatic execution is tested; The two-bit triplet electromagnetic valve I of electric control system gets the electric valve opening that makes, and the two-bit triplet electromagnetic valve II gets electric, then 2/2-way Pneumatic valve II and 2/2-way Pneumatic valve I action; Make 2/2-way Pneumatic valve II be in obstructed state, 2/2-way Pneumatic valve I is in open mode, then valve begins to close; When spring cylinder piston and cylinder piston motion position move to PST vent place; Then transfer port and vent are all blocked; Air in spring cylinder air cavity and the cylinder air cavity is drained nowhere, and under compressed-air actuated effect, valve can not be closed fully; The opening state that keeps several angle; Satisfied final controlling element can be not immediately when emergency occurring throttle down fully, make valve can remain on the operating conditions of the opening state of several angle, thereby also realized PST on-line testing very easily pneumatic actuator.
Description of drawings
Fig. 1 is the simplified structure schematic representation of a kind of PST of the utility model at lineal travel test pneumatic actuator.
Be labeled as among the figure: spring cylinder 1, cylinder 2, transfer port 3, two-bit triplet electromagnetic valve I 4, filtration pressure regulator valve 5, telecontrol case 6, vent 7,2/2-way Pneumatic valve I 8,2/2-way Pneumatic valve II 9, two-bit triplet electromagnetic valve II 10, cylinder piston 11, spring cylinder piston 12.
Embodiment
Be that the utility model provides a kind of as shown in Figure 1 can be easily carry out PST to pneumatic actuator and test pneumatic actuator at the PST of lineal travel test at lineal travel; This final controlling element can also be when final controlling element be out of order; Valve can not closed immediately, and remain on certain opening state.Said pneumatic actuator comprises mechanical actuating mechanism and electric control system; Mechanical actuating mechanism comprises the spring cylinder 1 and cylinder 2 that is provided with transfer port 3 respectively in the end; Electric control system comprises a two-bit triplet electromagnetic valve I 4, a filtration pressure regulator valve 5 and a telecontrol case 6; An interface of two-bit triplet electromagnetic valve I 4 is connected with the transfer port 3 of spring cylinder 1 and the transfer port 3 of cylinder 2 respectively, and another interface is communicated with filtration pressure regulator valve 5, and the 3rd interface is connected with telecontrol case 6; On the sidewall of the middle part of cylinder 2 sidewalls that constitute mechanical actuating mechanism and spring cylinder 1, the also corresponding each other respectively vent 7 that is provided with; Electric control system also includes a 2/2-way Pneumatic valve I 8, a 2/2-way Pneumatic valve II9 and a two-bit triplet electromagnetic valve II 10; The interface of 2/2-way Pneumatic valve I 8 is connected with two vents 7 respectively, and an interface of another interface and two-bit triplet electromagnetic valve II 10 repeatedly; 2/2-way Pneumatic valve II9 is connected two-bit triplet electromagnetic valve I 4 and filters on the pipeline between the pressure regulator valve 5; Another interface of two-bit triplet electromagnetic valve II 10 is connected on the pipeline that filters between pressure regulator valve 5 and the 2/2-way Pneumatic valve I 8, and the 3rd interface is connected with telecontrol case 6.After adopting the pneumatic actuator of said structure; When needs use the PST test function that pneumatic execution is tested; The two-bit triplet electromagnetic valve I 4 of electric control system gets the electric valve opening that makes, and two-bit triplet electromagnetic valve II 10 gets electric, then 2/2-way Pneumatic valve II 9 and 2/2-way Pneumatic valve I 8 actions; Make 2/2-way Pneumatic valve II 9 be in obstructed state, 2/2-way Pneumatic valve I 8 is in open mode, then valve begins to close; When spring cylinder piston 12 and cylinder piston 11 movement positions move to PST vent 7 places; Then transfer port 3 is all blocked with vent 7; Air in spring cylinder air cavity and the cylinder air cavity is drained nowhere, and under compressed-air actuated effect, valve can not be closed fully; The opening state that keeps several angle; Satisfied final controlling element can be not immediately when emergency occurring throttle down fully, make valve can remain on the operating conditions of the opening state of several angle, thereby also can realize PST on-line testing very easily pneumatic actuator.When PST needs proper functioning and need not use the PST function time at lineal travel test pneumatic actuator, two-bit triplet electromagnetic valve II 10 dead electricity, then corresponding 2/2-way Pneumatic valve II 9 all is failure to actuate with 2/2-way Pneumatic valve I 8.When two-bit triplet electromagnetic valve I 4 when electric, pressurized air gets in the spring cylinder air cavity and cylinder air cavity of final controlling element valve opening through filtering pressure regulator valve 5,2/2-way Pneumatic valve II 9, two-bit triplet electromagnetic valve I 4; When two-bit triplet electromagnetic valve I 4 dead electricity, lean on the spring reset effect, valve closing.In the above-mentioned enforcement side; No matter be that PST tests pneumatic actuator in normal working at lineal travel; Still need carry out PST when lineal travel is tested; The initial state of the electric control system of pneumatic actuator all is that two-bit triplet electromagnetic valve II 10 is in normally off with two-bit triplet electromagnetic valve I 4, and 2/2-way Pneumatic valve II 9 is in normally open, and 2/2-way Pneumatic valve I 8 is in normally off.
After adopting the pneumatic actuator of the utility model, not only can under the situation that does not influence valve match mechanism proper functioning, irregularly carry out fault test, to guarantee that final controlling element can play a role when emergency occurring to final controlling element; Can also stop to the pneumatic actuator air feed in failover and during to solenoid valve, be unlikely to make valve to be closed fully, and remain on the opening state of several angle.
Claims (1)
1. a PST tests pneumatic actuator at lineal travel, comprises mechanical actuating mechanism and electric control system; Mechanical actuating mechanism comprises spring cylinder (1) and the cylinder (2) that is provided with transfer port (3) respectively in the end; Electric control system comprises a two-bit triplet electromagnetic valve I (4), a filtration pressure regulator valve (5) and a telecontrol case (6); An interface of two-bit triplet electromagnetic valve I (4) is connected with the transfer port (3) of spring cylinder (1) and the transfer port (3) of cylinder (2) respectively, and another interface is communicated with filtration pressure regulator valve (5), and the 3rd interface is connected with telecontrol case (6); It is characterized in that: on the sidewall of the middle part of cylinder (2) sidewall that constitutes mechanical actuating mechanism and spring cylinder (1), the also corresponding each other respectively vent (7) that is provided with; Electric control system also includes a 2/2-way Pneumatic valve I (8), a 2/2-way Pneumatic valve II (9) and a two-bit triplet electromagnetic valve II (10); The interface of 2/2-way Pneumatic valve I (8) is connected with two vents (7) respectively, and an interface of another interface and two-bit triplet electromagnetic valve II (10) repeatedly; 2/2-way Pneumatic valve II (9) is connected two-bit triplet electromagnetic valve I (4) and filters on the pipeline between the pressure regulator valve (5); Another interface of two-bit triplet electromagnetic valve II (10) is connected on the pipeline that filters between pressure regulator valve (5) and the 2/2-way Pneumatic valve I (8), and the 3rd interface is connected with telecontrol case (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120229736U CN202132584U (en) | 2011-07-01 | 2011-07-01 | Pneumatic actuator for product stress test (PST) on-line stroke test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120229736U CN202132584U (en) | 2011-07-01 | 2011-07-01 | Pneumatic actuator for product stress test (PST) on-line stroke test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132584U true CN202132584U (en) | 2012-02-01 |
Family
ID=45521351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120229736U Expired - Fee Related CN202132584U (en) | 2011-07-01 | 2011-07-01 | Pneumatic actuator for product stress test (PST) on-line stroke test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132584U (en) |
-
2011
- 2011-07-01 CN CN201120229736U patent/CN202132584U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: C+T FLOW CONTROL EQUIPMENTS (CHENGDU) CO., LTD. Free format text: FORMER NAME: CHENGDU C + T FLOW CONTROL EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610200, 15, two section, Hanjiang Road, Shuangliu Industrial Park, Chengdu, Sichuan Patentee after: Stuttgart fluid control equipment (Chengdu) Co., Ltd. Address before: 610200, 15, two section, Hanjiang Road, Shuangliu Industrial Park, Chengdu, Sichuan Patentee before: Chengdu C + T Flow Control Equipment Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20150701 |
|
| EXPY | Termination of patent right or utility model |