CN2835729Y - Quick cut-off valve for TRT system - Google Patents
Quick cut-off valve for TRT system Download PDFInfo
- Publication number
- CN2835729Y CN2835729Y CN 200520076253 CN200520076253U CN2835729Y CN 2835729 Y CN2835729 Y CN 2835729Y CN 200520076253 CN200520076253 CN 200520076253 CN 200520076253 U CN200520076253 U CN 200520076253U CN 2835729 Y CN2835729 Y CN 2835729Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- swing arm
- shaft
- normally closed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Electrically Driven Valve-Operating Means (AREA)
- Fluid-Driven Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model provides a rapid cut-off valve for a TRT system, which is applied to the electricity generation for a blast furnace gas. The utility model comprises a valve body, a butterfly plate and a valve shaft, wherein a drive device of the valve is an electric device; a normally closed type jack electromagnetic clutch is arranged between the valve body and the electric device; a valve shaft is connected with an output shaft of the electric device through the normally closed type jack electromagnetic clutch; the tail part of the valve body is provided with a swing arm and a weight dropper; the swing arm is fixedly connected with the valve shaft through a key. The utility model has the advantages that the valve adopts the combined control way for the electric device and a mechanical device, the control is simple and reliable, the cost is reduced and the pollution can not be generated.
Description
Affiliated technical field
The utility model relates to a kind of butterfly valve, particularly relates to a kind of repid cut-off valve that uses in the blast furnace gas excess pressure power generating system.
Background technique
Repid cut-off valve in the TRT system is one of key equipment of the expensive turbine unit of protection, when the turbine unit breaks down, must be in 0.5 second fast shut-off, normal state is to realize opening slowly, close slowly, moving about function.In order to realize above-mentioned functions, domestic prior art all adopts hydraulic pressure installation and mechanical device to jointly control, control system complexity, debug difficulties, rate of fault height, the easy leakage pollution environment of oil circuit.
Summary of the invention
The repid cut-off valve control of existing TRT system is complicated, modulation is difficult, the high deficiency of rate of fault in order to overcome, and the utility model provides a kind of repid cut-off valve that adopts Electric actuator.
The technological scheme that its technical problem that solves the utility model adopts is an a kind of TRT system repid cut-off valve, comprise valve body, butterfly plate, valve shaft, the drive unit of valve is an Electric actuator, Normally closed type tooth embedding magnetic clutch also is housed between valve body and Electric actuator, and valve shaft connects by Normally closed type tooth embedding magnetic clutch with the output shaft of Electric actuator; The afterbody of valve body is equipped with swing arm, weight, and swing arm is fixedlyed connected by key with valve shaft.
The beneficial effects of the utility model are the modes that adopted Electric actuator and mechanical device to jointly control, and control is simple, reliable, greatly reduce cost and not pollution.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 embodiment's structural drawing.
Among the figure: 1. Electric actuator; 2. Normally closed type tooth embedding magnetic clutch; 3. valve body; 4. valve shaft; 5. butterfly plate; 6. swing arm; 7. weight.
Embodiment
As shown in Figure 1, Normally closed type tooth embedding magnetic clutch 2 is housed between valve body 3 and Electric actuator 1, valve shaft 4 connects 2 with the output shaft of Electric actuator 1 by Normally closed type tooth embedding magnetic clutch; The afterbody of valve body 3 is equipped with swing arm 6, weight 7, and swing arm 6 and valve shaft 4 are fixedlyed connected by key.During normal state, Normally closed type tooth embedding magnetic clutch 2 be in electricity condition, the output shaft of Electric actuator 1 and valve shaft 4 are in coupled situation, valve can be realized functions such as opening slowly, close slowly, move about under the driving of Electric actuator 1.Valve is a standard-sized sheet when nominal situation, and this moment, butterfly plate 5 was in level, and the swing arm weight is in raised state.When having an accident, Normally closed type tooth embedding magnetic clutch 2 dead electricity, the output shaft of Electric actuator 1 and valve shaft 4 are in disengaged condition, and valve is can quick closedown in 0.5 second under the effect of swing arm weight-driven potential energy, and the weight by regulating weight 7 and the length of swing arm 6 are adjusted the time of quick closing valve.
Claims (1)
1, a kind of TRT system repid cut-off valve, comprise valve body, butterfly plate, valve shaft, it is characterized in that: the drive unit of valve is an Electric actuator, Normally closed type tooth embedding magnetic clutch also is housed between described valve body and Electric actuator, and valve shaft connects by described Normally closed type tooth embedding magnetic clutch with the output shaft of Electric actuator; The afterbody of described valve body is equipped with swing arm, weight, and swing arm is fixedlyed connected by key with valve shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520076253 CN2835729Y (en) | 2005-10-08 | 2005-10-08 | Quick cut-off valve for TRT system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520076253 CN2835729Y (en) | 2005-10-08 | 2005-10-08 | Quick cut-off valve for TRT system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2835729Y true CN2835729Y (en) | 2006-11-08 |
Family
ID=37300383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520076253 Expired - Fee Related CN2835729Y (en) | 2005-10-08 | 2005-10-08 | Quick cut-off valve for TRT system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2835729Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010921A (en) * | 2010-12-30 | 2011-04-13 | 攀钢集团钢铁钒钛股份有限公司 | Top pressure automatic control method for bell blast furnace top gas recovery turbine unit (TRT) |
-
2005
- 2005-10-08 CN CN 200520076253 patent/CN2835729Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010921A (en) * | 2010-12-30 | 2011-04-13 | 攀钢集团钢铁钒钛股份有限公司 | Top pressure automatic control method for bell blast furnace top gas recovery turbine unit (TRT) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |