CN203532295U - Gas turbine natural gas spacing ventilation stroke switch installation arrangement structure - Google Patents
Gas turbine natural gas spacing ventilation stroke switch installation arrangement structure Download PDFInfo
- Publication number
- CN203532295U CN203532295U CN201320567791.7U CN201320567791U CN203532295U CN 203532295 U CN203532295 U CN 203532295U CN 201320567791 U CN201320567791 U CN 201320567791U CN 203532295 U CN203532295 U CN 203532295U
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- China
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- connecting lever
- limit switch
- position limit
- outlet damper
- stroke switch
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Abstract
The utility model relates to a gas turbine natural gas spacing ventilation stroke switch installation arrangement structure. The arrangement structure comprises a natural gas spacing fan, an air duct pipe, a stroke switch and an outlet baffle connecting lever. The air duct pipe is connected with the natural gas spacing fan. An air duct is formed in the air duct pipe. A stroke switch installation position is arranged in the air duct pipe and is located on a lift path of the outlet baffle connecting lever. The stroke switch is provided with a normally-open node, a normally-closed node and a motion connecting lever. The arrangement structure is characterized in that the stroke switch is arranged on the lower portion of the air duct pipe, the stroke switch is located on the lower portion of the air duct pipe and is arranged on the stroke switch installation position, the two ends of the normally-closed node are connected with wires, and the outlet baffle connecting lever is matched with the motion connecting lever. The arrangement structure is reasonable in structural design, reliable in performance, simple to operate, convenient, easy to do, and low in cost.
Description
Technical field
The utility model relates to the position limit switch mounting arrangements structure of ventilating between a kind of combustion machine rock gas.
Background technique
Combustion machine is the generally acknowledged environment-friendly high-efficiency generator set in current countries in the world, in recent years a large amount of combustion gas wheel Combined Cycle Unit of introducing blower fan between the band combustion machine rock gas that is similar to 9E type combustion machine of China.
Between combustion machine rock gas, the object of blower fan complete sets of equipment is ventilated exactly, is prevented gas accumulation and produce blast.External ventilation position limit switch with the gas turbine group of blower fan between combustion machine rock gas is all to adopt on the upper run switch installation position 9 as in Fig. 2 to install without exception at present, and position limit switch is to adopt the mounting arrangements mode of often opening node two terminated lines.In actual unit operation, often there is following unsafe factor and cause combustion machine trip accident in former position limit switch mounting technique scheme:
1, exist blower fan to exert oneself in certain situation, be not enough to overcome the downward gravity of outlet damper and make connecting lever fully rise to the height at top, air channel, cannot regular event thereby make to be installed on the position limit switch on connecting lever top.
2, other high-power power consumption subsidiary engine of combustion machine starts moment and may cause the blower fan that ventilates between rock gas to exert oneself temporarily to die down, connecting lever lifting height is declined in short-term and make position limit switch change into abnormal condition.
3, ventilation duct joint slightly leak out, outlet damper connecting lever joining shaft place get rusty after frictional force increase, the import door between rock gas is opened etc., and factors all may cause that position limit switch is changed into abnormal condition.
Model utility content
The purpose of this utility model is to overcome above shortcomings in prior art, and the position limit switch mounting arrangements structure of ventilating between the combustion machine rock gas that a kind of reasonable in design, reliable performance, simple, convenient easy row, expense are cheap is provided.
The technical scheme in the invention for solving the above technical problem is: the position limit switch mounting arrangements structure of ventilating between a kind of combustion machine rock gas, comprises blower fan between rock gas, wind channel tube, position limit switch, outlet damper connecting lever; Between wind channel tube and rock gas, blower fan is connected, and forms air channel in wind channel tube, and wind channel tube is provided with position limit switch installation position, and position limit switch installation position is positioned on the lift path of outlet damper connecting lever; Position limit switch has often leaves node, normally closed node, action connecting lever; It is characterized in that: position limit switch installation position is located at the bottom of wind channel tube; Position limit switch is positioned at the bottom of wind channel tube, is arranged on position limit switch installation position; Normally closed node two terminated lines; Outlet damper connecting lever coordinates with action connecting lever.
Outlet damper connecting lever described in the utility model is controlled by the outlet damper of installing in air channel; Outlet damper is during lifting, described not lifting of outlet damper connecting lever, and outlet damper connecting lever contacts with action connecting lever, the action connecting lever pressurized of position limit switch, normally closed node is opened; During the stressed lifting of outlet damper, described outlet damper connecting lever lifting, after outlet damper connecting lever lifting certain altitude, described outlet damper connecting lever departs from action connecting lever, and the action connecting lever action of position limit switch is closed normally closed node in position limit switch.
The utility model compared with prior art, has the following advantages and effect:
1, utilize existing equipment device, change the relative installation relation of original equipment product and the back panel wiring mode of mechanical matching relationship and former position limit switch, just can be safer realize former design safety requirement, the flexible movements Security that improves complete ventilation equipment group;
2, expense is low, extends relevant complete sets of equipment working life, reduces that equipment spare unit take, the cost of overhaul, Installation and Debugging expense and later maintenance expense;
3, design simple, implement conveniently, be beneficial to and alleviate electricity and build workload and the labor intensity with commissioning staff and operating maintenance personnel, accelerate the progress of engineering;
4, complete sets of equipment opposing external disturbance ability is strong, can effectively resist the external actions such as vibration equipment, frictional force increase, equipment is exerted oneself reductions, slight leakage, minimizing combustion machine trip accident;
5, be beneficial to combustion captain phase safety and economic operation, often few once shutdown tripping operation, will bring the raising of Security, and reduce the waste of rock gas, is easy to realize, and is worthy to be popularized;
6, can be widely used in building the maintenance of combustion machine project, constructed item and other item class like on equipment, thereby produce certain Economy and effects of energy saving and emission reduction.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is the structural representation of the utility model embodiment position limit switch.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Referring to Fig. 1 and Fig. 2, the utility model embodiment comprises blower fan 1 between rock gas, wind channel tube 2, position limit switch 3, outlet damper connecting lever 4.
Between wind channel tube 2 and rock gas, blower fan 1 is connected, the interior formation of wind channel tube 2 air channel.The bottom of wind channel tube 2 is provided with position limit switch installation position 8, and position limit switch installation position 8 is positioned on the lift path of outlet damper connecting lever 4.
The utility model changed original mode of connection as the two ends that are connected to normally closed node 6 into by being originally connected to the two ends of often opening node 5, and the mounting point of position limit switch 3 is changed into position limit switch installation position 8 by original upper run switch installation position 9.
The mechanical matching relationship of the improved complete sets of equipment of the manner is: outlet damper connecting lever 4 is connected with the outlet damper of installing in air channel, controlled by outlet damper, outlet damper is not during lifting, not lifting of outlet damper connecting lever 4, outlet damper connecting lever 4 contacts with action connecting lever 7, action connecting lever 7 pressurizeds of position limit switch 3, normally closed node 6 is opened; The air-flow producing after blower fan between rock gas 1 starts acts on outlet damper through air channel, make it overcome the gravity lifting that makes progress, outlet damper drives the 4 upwards liftings of outlet damper connecting lever, after outlet damper connecting lever 4 lifting certain altitudes, outlet damper connecting lever 4 departs from action connecting lever 7, action connecting lever 7 actions of position limit switch 3 are closed normally closed node 6 in position limit switch, thereby complete whole mechanical control procedure.The non-the utility model innovative content of outlet damper.
Because the utility model is based upon on the basis of blower fan complete sets of equipment device between original combustion machine rock gas, only change the composite structure position of position limit switch 3 and outlet damper and the mode of connection of position limit switch 3, simple, convenient easy row, expense are cheap; Simultaneously owing to adopting the complete sets of equipment after the utility model can be applicable to the combined protection logical operation that former combustion machine blower motor actuating signal and external travel switching signal and valve station hazardous gas detect trip signal completely; and realize original design function; effectively eliminate above-mentioned various unsafe factors simultaneously, improve complete sets of equipment Security.
In addition, it should be noted that, the specific embodiment described in this specification, the shape of its parts and components, institute's title of being named etc. can be different, and the above content described in this specification is only to the explanation of the utility model structure example.
Claims (2)
1. the position limit switch mounting arrangements structure of ventilating between combustion machine rock gas, comprises blower fan between rock gas, wind channel tube, position limit switch, outlet damper connecting lever; Between wind channel tube and rock gas, blower fan is connected, and forms air channel in wind channel tube, and wind channel tube is provided with position limit switch installation position, and position limit switch installation position is positioned on the lift path of outlet damper connecting lever; Position limit switch has often leaves node, normally closed node, action connecting lever; It is characterized in that: position limit switch installation position is located at the bottom of wind channel tube; Position limit switch is positioned at the bottom of wind channel tube, is arranged on position limit switch installation position; Normally closed node two terminated lines; Outlet damper connecting lever coordinates with action connecting lever.
2. the position limit switch mounting arrangements structure of ventilating between combustion machine rock gas according to claim 1, is characterized in that: described outlet damper connecting lever is controlled by the outlet damper of installing in air channel; Outlet damper is during lifting, described not lifting of outlet damper connecting lever, and outlet damper connecting lever contacts with action connecting lever, the action connecting lever pressurized of position limit switch, normally closed node is opened; During the stressed lifting of outlet damper, described outlet damper connecting lever lifting, after outlet damper connecting lever lifting certain altitude, described outlet damper connecting lever departs from action connecting lever, and the action connecting lever action of position limit switch is closed normally closed node in position limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567791.7U CN203532295U (en) | 2013-09-13 | 2013-09-13 | Gas turbine natural gas spacing ventilation stroke switch installation arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567791.7U CN203532295U (en) | 2013-09-13 | 2013-09-13 | Gas turbine natural gas spacing ventilation stroke switch installation arrangement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532295U true CN203532295U (en) | 2014-04-09 |
Family
ID=50418508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320567791.7U Withdrawn - After Issue CN203532295U (en) | 2013-09-13 | 2013-09-13 | Gas turbine natural gas spacing ventilation stroke switch installation arrangement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511313A (en) * | 2013-09-13 | 2014-01-15 | 华电电力科学研究院 | Ventilation travel switch installing and arranging structure of gas turbine natural gas chamber |
-
2013
- 2013-09-13 CN CN201320567791.7U patent/CN203532295U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511313A (en) * | 2013-09-13 | 2014-01-15 | 华电电力科学研究院 | Ventilation travel switch installing and arranging structure of gas turbine natural gas chamber |
| CN103511313B (en) * | 2013-09-13 | 2016-01-20 | 华电电力科学研究院 | Ventilation travel switch mounting arrangements structure between combustion engine rock gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20160120 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |