CN108533554A - A kind of quick oil return system for TRT quick action emergency valves - Google Patents
A kind of quick oil return system for TRT quick action emergency valves Download PDFInfo
- Publication number
- CN108533554A CN108533554A CN201810541987.6A CN201810541987A CN108533554A CN 108533554 A CN108533554 A CN 108533554A CN 201810541987 A CN201810541987 A CN 201810541987A CN 108533554 A CN108533554 A CN 108533554A
- Authority
- CN
- China
- Prior art keywords
- fuel tank
- oil
- action emergency
- quick action
- quick
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
Abstract
The present invention relates to a kind of quick oil return systems for TRT quick action emergency valves, including quick action emergency valve and transition fuel tank, the oil cylinder outlet of the quick action emergency valve is connected to by the first oil return pipe with the oil inlet of the transition fuel tank, the oil outlet of the transition fuel tank is connected to the oil inlet of hydraulic station fuel tank, and the height of the transition fuel tank is less than the height of the quick action emergency valve.The quick oil return system of the present invention; by the way that transition fuel tank is arranged between quick action emergency valve and hydraulic station fuel tank; it can realize when TRT is in emergency shutdown; the in-oil cylinder hydraulic oil of quick action emergency valve can be discharged at 0.5 second; thoroughly solve quick action emergency valve because hydraulic oil return oil pressure is big and the technical issues of cause the valve not closed in 0.5 second, ensure that the safety of TRT devices；Also improve the flexibility of TRT total figures arrangement.
Description
Technical field
The present invention relates to Blast Furnace Gas of Iron ＆ Steel Plants differential pressure power generation technical fields, more particularly to one kind being used for TRT emergency cut-offs
The quick oil return system of valve.
Background technology
Currently, TRT devices are the power-saving technologies of steel plant's Iron-smelting key, it is the technology that country is distinctly claimed popularization.
Quick action emergency valve is equipped on the gas piping of TRT entrances, quick action emergency valve is the key equipment for ensureing equipment safety.TRT exists
When emergency shutdown, the quick action emergency valves of the TRT entrances Close All in 0.5 second is reduced rapidly by the gas volume of TRT at this time,
Ensure the safety of TRT turbines.
Quick action emergency valve is single-acting hydraulic valve, and oil cylinder is divided into two parts by piston, and a part is storage hydraulic pressure
Oil, another part are spring.When quick action emergency valve is opened, valve is set to open by hydraulic oil compressed spring；Work as emergency cut-off
When valve quick closedown, the hydraulic oil in oil cylinder is unloaded to TRT hydraulic station hydraulic oil containers rapidly, is quickly closed valve by spring
It closes.But when quick action emergency valve quick closedown, to ensure oil in 0.5 second to be unloaded the hydraulic oil in oil cylinder to TRT hydraulic pressure to
It stands in hydraulic oil container, the resistance drop of quick action emergency valve to TRT hydraulic station fuel tanks cannot be too big, and otherwise TRT quick action emergency valves can not
Fully closed in 0.5 second again or pass is not in place, causes TRT turbine overspeeds, causes major accident.
Invention content
In view of this, an embodiment of the present invention is intended to provide a kind of quick oil return system for TRT quick action emergency valves, with solution
At least one technical problem in the prior art certainly.
In order to achieve the above objectives, the technical solution of the embodiment of the present invention is realized in：One kind being used for TRT emergency cut-offs
The oil cylinder outlet of the quick oil return system of valve, including quick action emergency valve and transition fuel tank, the quick action emergency valve passes through first time
Oil pipe is connected to the oil inlet of the transition fuel tank, and the oil outlet of the transition fuel tank is connected to the oil inlet of hydraulic station fuel tank,
The height of the transition fuel tank is less than the height of the quick action emergency valve.
The beneficial effects of the invention are as follows：The quick oil return system of the present invention, by quick action emergency valve and hydraulic station fuel tank
Between be arranged transition fuel tank, can realize that, when TRT is in emergency shutdown, the in-oil cylinder hydraulic oil of quick action emergency valve can be at 0.5 second
Discharge thoroughly solves quick action emergency valve because of the technology that hydraulic oil return oil pressure is big and the valve is caused not closed in 0.5 second
Problem ensure that the safety of TRT devices；Also improve the flexibility of TRT total figures arrangement.
Based on the above technical solution, the present invention can also be improved as follows：
Further, the height of the hydraulic station fuel tank oil inlet is less than the height of quick action emergency valve oil cylinder outlet.
Further, the volume of the transition fuel tank and the ratio of the volume of the quick action emergency valve oil cylinder are greater than or equal to 4.
Advantageous effect using above-mentioned further scheme is：When the oil cylinder of quick action emergency valve is higher than hydraulic station fuel tank,
Transition fuel tank is set between quick action emergency valve and hydraulic station fuel tank, and transition fuel tank is located at below quick action emergency valve oil cylinder, when
When quick action emergency valve emergency cut-off, the hydraulic oil of quick action emergency valve oil cylinder drains into rapidly transition fuel tank, the hydraulic pressure in transition fuel tank
Oil slowly flows to hydraulic station fuel tank under the effect of gravity, is made to solve quick action emergency valve because hydraulic oil return oil pressure is big
The technical issues of not closed in 0.5 second at the valve.
Further, the height of the hydraulic station fuel tank oil inlet is more than the height of quick action emergency valve oil cylinder outlet.
Further, transition fuel tank upper end is provided with hydraulic oil pump, and the oil inlet of the hydraulic oil pump passes through fuel sucking pipe
It is connected to the inside of the hydraulic oil container, the oil outlet of the hydraulic oil pump passes through the second oil return pipe and the TRT hydraulic oil containers
Oil inlet connection, the bottom end of the transition fuel tank is connected with oil discharge outlet.
Further, the lateral surface of the transition fuel tank is provided with liquid level gauge, is offered on the upper end cover of the transition fuel tank
Ventilation opening, the ventilation opening are threaded with ventilator.
Further, the volume of the transition fuel tank and the ratio of the volume of the quick action emergency valve oil cylinder are greater than or equal to 4.
Advantageous effect using above-mentioned further scheme is：When the oil cylinder of quick action emergency valve is lower than hydraulic station fuel tank,
Transition fuel tank is set between quick action emergency valve and hydraulic station fuel tank, and transition fuel tank is located at below quick action emergency valve oil cylinder；When
When emergency cut-off valve emergency cut-off, the in-oil cylinder hydraulic oil of quick action emergency valve drains into rapidly transition fuel tank, when in transition fuel tank
Hydraulic pressure oil level to high point when, pump start send the hydraulic oil in transition fuel tank to hydraulic station fuel tank, when oil level is to low spot,
Oil pump is out of service so that when quick action emergency valve is lower than hydraulic station fuel tank, hydraulic oil can rapidly be discharged in 0.5 second, protect
Card quick action emergency valve is closed in 0.5 second.
Further, further include control unit, be provided with inserted valve on first oil return pipe, described control unit with it is described
The function end of inserted valve connects.
Description of the drawings
Fig. 1 is the structure chart of the quick oil return system of the embodiment of the present invention 1；
Fig. 2 is the structure chart of the quick oil return system of the embodiment of the present invention 2.
In attached drawing, parts list represented by the reference numerals are as follows：
1, quick action emergency valve；11, quick action emergency valve oil cylinder；111, hydraulic oil；12, piston；2, transition fuel tank；21, transition
Fuel tank oil inlet；22, transition fuel tank oil outlet；23, oil discharge outlet；24, liquid level gauge；241, liquid-level switch；25, ventilator；3,
One oil return pipe；31, inserted valve；4, hydraulic oil pump；41, fuel sucking pipe；42, the second oil return pipe；5, hydraulic station fuel tank；6, control is single
Member.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figs. 1-2, a kind of quick oil return system for TRT quick action emergency valves of the invention, which is characterized in that packet
Quick action emergency valve 1 and transition fuel tank 2 are included, the oil cylinder outlet of the quick action emergency valve 1 passes through the first oil return pipe 3 and the bridging oil
The transition fuel tank oil inlet 21 of case 2 is connected to, the oil inlet of the transition fuel tank oil outlet 22 and hydraulic station fuel tank 5 of the transition fuel tank 2
Mouth connection, the height of the transition fuel tank 2 are less than the height of the quick action emergency valve 1.
In existing quick action emergency valve oil return system, quick action emergency valve 1 is single-acting hydraulic valve, and oil cylinder 11 passes through
Piston 12 divides for two parts, and a part is storage hydraulic oil 111, and another part is spring.When quick action emergency valve 1 is opened, lead to
Crossing hydraulic oil compressed spring makes valve open；When 1 quick closedown of quick action emergency valve, rapidly by the hydraulic oil 111 in oil cylinder 11
It unloads to TRT hydraulic stations fuel tank 5, is quickly closed valve by spring.
Compared with prior art, quick oil return system of the invention, by quick action emergency valve 1 and hydraulic station fuel tank 5 it
Between setting transition fuel tank 2, can realize when TRT is in emergency shutdown, the hydraulic oil 111 in quick action emergency valve oil cylinder 11 can be
It is discharged within 0.5 second, thoroughly solves quick action emergency valve 1 and cause the valve not closed in 0.5 second because hydraulic oil return oil pressure is big
The technical issues of, it ensure that the safety of TRT devices；Also improve the flexibility of TRT total figures arrangement.
As depicted in figs. 1 and 2, inserted valve 31 is provided on first oil return pipe 3, the quick oil return system further includes
Control unit 6, described control unit 6 are connect with the function end of the inserted valve 31.In practical applications, the transition fuel tank 2
The ratio of volume of volume and the quick action emergency valve oil cylinder 11 be greater than or equal to 4.According to quick action emergency valve oil cylinder 11 and TRT
The height difference of hydraulic station fuel tank 5, provides two kinds of technical solutions, is now made and being illustrated with following two embodiments.
Embodiment 1
As shown in Figure 1, when the height of 5 oil inlet of hydraulic station fuel tank is less than the outlet of 1 oil cylinder of the quick action emergency valve
When height, transition fuel tank 2 is set between quick action emergency valve 1 and hydraulic station fuel tank 5, and transition fuel tank 2 is located at quick action emergency valve
Below oil cylinder 11, when 1 emergency cut-off of quick action emergency valve, the hydraulic oil 111 of quick action emergency valve oil cylinder 11 drains into rapidly transition
Fuel tank 2, the hydraulic oil 111 in transition fuel tank 2 slowly flow to hydraulic station fuel tank 5, are promptly cut to solve under the effect of gravity
Disconnected valve 1 because hydraulic oil return oil pressure is big and the technical issues of cause the valve not closed in 0.5 second.
Embodiment 2
It is described when the height of 5 oil inlet of hydraulic station fuel tank is more than the height of 1 oil cylinder of quick action emergency valve outlet
2 upper end of transition fuel tank is provided with hydraulic oil pump 4, and the oil inlet of the hydraulic oil pump 4 passes through fuel sucking pipe 41 and the transition fuel tank 2
Inside connection, the oil outlet of the hydraulic oil pump 4 passes through the oil inlet of the second oil return pipe 42 and the TRT hydraulic stations fuel tank 5
Connection, the bottom end of the transition fuel tank 2 is connected with oil discharge outlet 23.The lateral surface of the transition fuel tank 2 is provided with liquid level gauge 24；Institute
It states and offers ventilation opening on the upper end cover of transition fuel tank 2, the ventilation opening is threaded with ventilator 25.Transition fuel tank 2 and oil
Pump 4 is the integrated design, and transition fuel tank 2 is arranged below quick action emergency valve oil cylinder 11.When 1 valve of quick action emergency valve promptly closes
When closing, the hydraulic oil 111 in quick action emergency valve oil cylinder 11 drains into rapidly transition fuel tank 2, when the hydraulic pressure oil level in transition fuel tank 2 arrives
When high point, oil pump 4 starts, and the hydraulic oil in transition fuel tank 2 is sent to hydraulic station fuel tank 5, and when oil level is to low spot, oil pump 4 stops
Operation so that when quick action emergency valve 1 is lower than hydraulic station fuel tank 5, hydraulic oil can rapidly be discharged in 0.5 second, ensure urgent
Stop valve 1 is closed in 0.5 second.The dischargeable capacity of transition fuel tank 2 is not less than the volume of 10 times of quick action emergency valve oil cylinders.
In some embodiments of the invention, it is preferable that oil pump 4 is gear pump, flow 4.3L/min, oil pressure 3MPa
(can be adjusted according to resistance drop)；The start and stop of oil pump 4 realize that low liquid level switchs level height and is higher than oil pump by liquid-level switch 241
The space of inlet port, high level switch oil level to 2 top of transition fuel tank need to meet the volume of 2 times of quick action emergency valve oil cylinders 11.When
When high level switch and oil pump fault are alarmed, TRT needs emergency shutdown.
When using the two kinds of above quick oil return systems, it can realize when TRT is in emergency shutdown, quick action emergency valve oil cylinder
Hydraulic oil 111 in 11 can be discharged at 0.5 second, thoroughly solves quick action emergency valve 1 and is caused because hydraulic oil return oil pressure is big
The technical issues of valve is not closed in 0.5 second ensure that the safety of TRT devices；Also improve the flexible of TRT total figures arrangement
Property.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of quick oil return system for TRT quick action emergency valves, which is characterized in that including quick action emergency valve (1) and transition
Fuel tank (2), the oil cylinder outlet of the quick action emergency valve (1) pass through the bridging oil of the first oil return pipe (3) and the transition fuel tank (2)
Case oil inlet (21) is connected to, and the transition fuel tank oil outlet (22) of the transition fuel tank (2) connects with the oil inlet of hydraulic station fuel tank (5)
Logical, the height of the transition fuel tank (2) is less than the height of the quick action emergency valve (1).
2. a kind of quick oil return system for TRT quick action emergency valves according to claim 1, which is characterized in that the liquid
The height of pressure station fuel tank (5) oil inlet is less than the height of the quick action emergency valve (1) oil cylinder outlet.
3. a kind of quick oil return system for TRT quick action emergency valves according to claim 2, which is characterized in that the mistake
The ratio for crossing the volume of fuel tank (2) and the volume of the quick action emergency valve oil cylinder (11) is greater than or equal to 4.
4. a kind of quick oil return system for TRT quick action emergency valves according to claim 1, which is characterized in that the liquid
The height of pressure station fuel tank (5) oil inlet is more than the height of the quick action emergency valve (1) oil cylinder outlet.
5. a kind of quick oil return system for TRT quick action emergency valves according to claim 4, which is characterized in that the mistake
It crosses fuel tank (2) upper end and is provided with hydraulic oil pump (4), the oil inlet of the hydraulic oil pump (4) passes through fuel sucking pipe (41) and the mistake
The inside connection of fuel tank (2) is crossed, the oil outlet of the hydraulic oil pump (4) passes through the second oil return pipe (42) and the hydraulic station fuel tank
(5) oil inlet connection, the bottom end of the transition fuel tank (2) is connected with oil discharge outlet (23).
6. a kind of quick oil return system for TRT quick action emergency valves according to claim 4, which is characterized in that the mistake
The lateral surface for crossing fuel tank (2) is provided with liquid level gauge (24), and ventilation opening is offered on the upper end cover of the transition fuel tank (2), described
Ventilation opening is threaded with ventilator (25).
7. a kind of quick oil return system for TRT quick action emergency valves according to claim 4, which is characterized in that the mistake
The ratio for crossing the volume of fuel tank (2) and the volume of the quick action emergency valve oil cylinder (11) is greater than or equal to 4.
8. according to a kind of any one of claim 1 to 7 quick oil return system for TRT quick action emergency valves, feature exists
In further including control unit (6), inserted valve (31), described control unit (6) and institute be provided on first oil return pipe (3)
State the function end connection of inserted valve (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541987.6A CN108533554A (en) | 2018-05-30 | 2018-05-30 | A kind of quick oil return system for TRT quick action emergency valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541987.6A CN108533554A (en) | 2018-05-30 | 2018-05-30 | A kind of quick oil return system for TRT quick action emergency valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108533554A true CN108533554A (en) | 2018-09-14 |
Family
ID=63473059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810541987.6A Pending CN108533554A (en) | 2018-05-30 | 2018-05-30 | A kind of quick oil return system for TRT quick action emergency valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533554A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007721A1 (en) * | 1999-07-26 | 2001-02-01 | Lafontaine Joseph A | Supply tank for toilet |
| CN2597778Y (en) * | 2002-11-28 | 2004-01-07 | 吉卫星 | Fast emergent stop valve |
| CN101440886A (en) * | 2008-12-12 | 2009-05-27 | 秦皇岛秦冶重工有限公司 | Electric emergency cut-off valve |
| CN203348198U (en) * | 2013-05-24 | 2013-12-18 | 淮安威博液压有限公司 | Double-control power unit of wheelchair |
| CN104295720A (en) * | 2014-08-08 | 2015-01-21 | 中国重型机械研究院股份公司 | Circulating thin oil lubricating and cooling system of ring axial rolling speed reducer |
| CN105508717A (en) * | 2016-01-18 | 2016-04-20 | 株洲南方阀门股份有限公司 | Tube-burst emergency cut-off valve |
-
2018
- 2018-05-30 CN CN201810541987.6A patent/CN108533554A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007721A1 (en) * | 1999-07-26 | 2001-02-01 | Lafontaine Joseph A | Supply tank for toilet |
| CN2597778Y (en) * | 2002-11-28 | 2004-01-07 | 吉卫星 | Fast emergent stop valve |
| CN101440886A (en) * | 2008-12-12 | 2009-05-27 | 秦皇岛秦冶重工有限公司 | Electric emergency cut-off valve |
| CN203348198U (en) * | 2013-05-24 | 2013-12-18 | 淮安威博液压有限公司 | Double-control power unit of wheelchair |
| CN104295720A (en) * | 2014-08-08 | 2015-01-21 | 中国重型机械研究院股份公司 | Circulating thin oil lubricating and cooling system of ring axial rolling speed reducer |
| CN105508717A (en) * | 2016-01-18 | 2016-04-20 | 株洲南方阀门股份有限公司 | Tube-burst emergency cut-off valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180914 |
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| RJ01 | Rejection of invention patent application after publication |