CN201746567U - Hydraulic quick-acting switching-off control device for gas switching-off valve used for blast stove - Google Patents
Hydraulic quick-acting switching-off control device for gas switching-off valve used for blast stove Download PDFInfo
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- CN201746567U CN201746567U CN2010202452392U CN201020245239U CN201746567U CN 201746567 U CN201746567 U CN 201746567U CN 2010202452392 U CN2010202452392 U CN 2010202452392U CN 201020245239 U CN201020245239 U CN 201020245239U CN 201746567 U CN201746567 U CN 201746567U
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Abstract
The utility model provides a hydraulic quick-acting switching-off control device for a gas switching-off valve used for a blast stove. The hydraulic quick-acting switching-off control device includes a leather bag type energy accumulator, a safety ball valve, a first one-way valve, a hydraulic control one-way valve, a second one-way valve, a first ball seat type electromagnetic stop valve and a second ball seat type electromagnetic stop valve; the first ball seat type electromagnetic stop valve and the second ball seat type electromagnetic stop valve change directions automatically when the electricity is cut off, so that the high-pressure oil stored in the leather bag type energy accumulator flows into a rod cavity of the hydraulic cylinder through the first one-way valve; and meanwhile, the oil liquid in a rodless cavity of the hydraulic cylinder flows into the rod cavity of the hydraulic cylinder through the second one-way valve, the hydraulic control one-way valve and the first one-way valve. Therefore, a differential circuit is formed, and the hydraulic cylinder can retract rapidly and close the gas switching-off valve. The hydraulic quick-acting switching-off control device has the characteristics of high safety, rapid switching-off, small weight of equipment, reduction of cost, high reliability, and convenience for manufacture, installation and maintenance.
Description
Technical field
The utility model relates to a kind of hotblast stove with safety type gas stop valve hydraulic control device, is specifically related to a kind of counterweight, no reset cylinder and nothing hydraulic control device that electric operator resets that resets that do not have.
Background technology
Hotblast stove is meant a kind of new control device of the gas stop valve that is used for the iron-smelting blast furnace hotblast stove with safety type gas stop valve hydraulic control device, main theory for safety, when taking place to have a power failure suddenly or hydraulic efficiency system when breaking down accident, the necessary quick closedown of gas stop valve is cut off coal gas and is supplied with.The gas stop valve quick closedown divides following form: counterweight is closed the hydraulic pressure restoration type, counterweight is closed pneumatic restoration type, electric machine actuating mechanism quick closedown type.The utility model hotblast stove is a kind of structure different with former three with safety type gas stop valve hydraulic pressure quick acting switching-off control device.
First kind of counterweight close the hydraulic pressure restoration type when being the gas stop valve works better hydro-cylinder open, when taking place to have a power failure suddenly or hydraulic efficiency system is closed by counterweight when breaking down accident, Driven by Hydraulic Cylinder resets when the hydraulic efficiency system energy works better.The characteristics of this structure are that gas stop valve carries huge counterweight, cause that weight of equipment is big, installing space is big, installation is difficult, difficult in maintenance, the hydro-cylinder size is big.
Second kind of counterweight close pneumatic restoration type when being the gas stop valve works better hydro-cylinder open, when taking place to have a power failure suddenly or hydraulic efficiency system is closed by counterweight when breaking down accident, cylinder resets.The characteristics of this structure are that gas stop valve carries huge counterweight and cylinder and pore system, cause that weight of equipment is big, installing space is big, installation is difficult, difficult in maintenance, cost is high, failure rate is high.
The utility model content
The purpose of this utility model is to overcome the existing installation technical deficiency, provide a kind of safe, cost is low, dependable performance, the simple gas stop valve hydraulic control device of maintenance.
To achieve these goals, the utility model provides a kind of novel gas trip valve hydraulic control device, comprise hydro-cylinder and quick closedown hydraulic control circuit, the hydraulic efficiency system of described quick closedown hydraulic control circuit comprises bag type accumulator, ball relief valve, first check valve, hydraulic control one-way valve, second check valve, the first spherically seated electromagnet cut off valve and the second spherically seated electromagnet cut off valve;
Wherein, aspect the hydraulicefficiency pipeline connection, pipeline links to each other with the rod chamber of hydro-cylinder after the bag type accumulator outlet connects ball relief valve and first check valve in succession;
The rodless cavity of hydro-cylinder link to each other with the hydraulic control one-way valve and second check valve back with the ball relief valve and first check valve between pipeline link to each other;
The switching of the first spherically seated electromagnet cut off valve and second spherically seated electromagnet cut off valve control hydraulic control one-way valve is to form the hydraulic differential loop.
Further, also comprise the automatic oil recharging device that is used for to the automatic repairing of bag type accumulator, described automatic oil recharging device comprises pressure switch and the 3rd spherically seated electromagnet cut off valve, and wherein the pressure oil pipeline of hydraulic efficiency system connects the 3rd spherically seated electromagnet cut off valve, pressure switch, ball relief valve and bag type accumulator in succession.
Described pressure switch has low-voltage signal and two switching value signals of high-voltage signal, is respectively applied for the opening and closing of control the 3rd spherically seated electromagnet cut off valve.
The utility model technology compared with prior art has the following advantages:
Owing to cancelled heavy counterweight and reset cylinder, make that to drive the hydro-cylinder size little and weight of equipment is little, installing space is little, installations is easy, safeguard easy saving cost.
Because when adopting power failure suddenly or hydraulic efficiency system to break down, the automatic dead electricity of ball seat solenoid operated directional valve electro-magnet makes the hydraulic control loop open hydraulic control one-way valve, energy storage drives the hydro-cylinder fuel feeding to gas stop valve closes gas stop valve rapidly, guarantees hotblast stove safety in production, personnel safety and device security.
Because gas stop valve hydraulic control device emergency closure adopts differentiating control, reduces accumulator volume.
Owing to adopt the automatic repairing of a cover energy storage, monitoring device, go on-the-spot spot check, repairing work thereby save workman's risk regularly.
Equipment is reliable, and manufacturing, installation and maintenance are all very convenient.
Description of drawings
Fig. 1 is the structural representation of gas stop valve of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the hydrostatic control schematic diagram of gas stop valve of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described.
Shown in seeing figures.1.and.2, be respectively the structural representation of gas stop valve of the present utility model and the vertical view of Fig. 1.By above-mentioned accompanying drawing as can be seen, the working process of this trip valve is as follows: during unlatching, hydro-cylinder rodless cavity oil supply is stretched out hydraulic cylinder rod 19 and is driven transmission shaft 50 rotations, drivening rod 40 and the gas stop valve of valve plate 30 half-twist opening installation on gas line 20, this moment, valve plate 30 was antiparallel with the coal gas air-flow, valve opening; When valve-off, hydro-cylinder rod chamber oil supply makes the withdrawal of hydro-cylinder 1 bar drive transmission shaft 50 rotations, and drivening rod 40 and valve plate 30 half-twists are closed gas stop valve, and this moment, valve plate 30 and coal gas air-flow reverse vertical realized the keying of gas stop valve with this.
Below in conjunction with Fig. 3, the hydraulic pressure quick closedown control principle of gas stop valve of the present utility model is elaborated.By this figure as can be seen, the hydrostatic control of this gas stop valve mainly comprises two portions: common hydraulic control circuit A and be used for when accident the quick closedown hydraulic control circuit B of quick closedown gas stop valve.
Common hydraulic control circuit A work during works better, when the trip valve that turns on the gas-fire of receiving electrical control system instructs, electricity liquid directional valve 13 right side electro-magnet get, from the hydraulic efficiency oil of the hydraulic efficiency system rodless cavity by electric liquid directional valve 13, hydraulic control one-way valve 12, one-way throttle valve 11 influent cylinder pressures 1 hydraulic cylinder rod 19 is stretched out and drive transmission shaft 50 rotations, drivening rod 40 and the valve plate 30 half-twists trip valve that turns on the gas-fire, this moment, valve plate 30 was antiparallel with the coal gas air-flow, valve opening; When receiving closing gas stop valve when instruction of electrical control system, electricity liquid directional valve 13 left side electro-magnet get, make hydraulic cylinder rod 19 withdrawals drive transmission shafts 50 rotations from the hydraulic efficiency oil of the hydraulic efficiency system rod chamber by electric liquid directional valve 13, hydraulic control one-way valve 12, one-way throttle valve 11 influent cylinder pressures 1, drivening rod 40 and valve plate 30 half-twists are closed gas stop valve, this moment valve plate 30 with coal gas air-flow reverse vertical, valve closes, this moment, the quick closedown hydraulic control circuit B with energy storage did not work.
And take place to have a power failure suddenly or hydraulic efficiency system when breaking down when hotblast stove, the quick closedown hydraulic control circuit B of band energy storage puts into operation automatically, and quick closedown hydraulic control circuit B mainly comprises following element: bag type accumulator 2, ball relief valve 3, first check valve 9, hydraulic control one-way valve 6, second check valve 4, the second spherically seated electromagnet cut off valve 10 and the first spherically seated electromagnet cut off valve 5.The first spherically seated electromagnet cut off valve 5, the second spherically seated electromagnet cut off valve, 10 automatic dead electricity make the have rodless cavity of hydraulic efficiency oil by the first spherically seated electromagnet cut off valve 5, check valve 9 influent cylinder pressures 1 in the bag type accumulator 2 among the hydraulic control circuit B, make hydraulic cylinder rod 19 withdrawals drive transmission shaft 50 rotations, drivening rod 40 and valve plate 30 half-twists are closed gas stop valve, the fluid of hydro-cylinder 1 rodless cavity flows back to hydro-cylinder 1 rod chamber again by hydraulic control one-way valve 6, check valve 4, the first spherically seated electromagnet cut off valve 5, first check valve 9, to reduce the fuel delivery of energy storage 2.Use common hydraulic control circuit A when gas stop valve is opened when blast furnace restores electricity or handles accident.
In addition, can work at any time for guaranteeing energy storage 2, the utility model also comprises the automatic oil recharging device C of a cover to energy storage 2 automatic repairings, comprises pressure switch 7 and the 3rd spherically seated electromagnet cut off valve 8 compositions, and wherein pressure switch 7 is with two switching value signals: high-voltage signal and low-voltage signal.Pressure switch 7 detects the pressure of hydraulic efficiency oil in the energy storage 2, when pressure reaches the low-voltage signal of setting, pressure switch 7 signalling electrical control systems make the 3rd spherically seated electromagnet cut off valve 8 electric, be punched in the energy storage 2 by the 3rd spherically seated electromagnet cut off valve 8, ball relief valve 3 from the high-pressure and hydraulic oil of hydraulic power unit; When pressure reached the high-voltage signal of setting, pressure switch 7 signalling electrical control systems made the 3rd spherically seated electromagnet cut off valve 8 dead electricity, and the high-pressure and hydraulic oil that cuts off from hydraulic power unit enters in the energy storage 2; All the time be in high pressure conditions like this in the energy storage 2 and can close gas stop valve at any time.
Below in conjunction with working process, further the principle of work of quick closedown hydraulic control circuit B and automatic oil recharging device C is described again.
When hotblast stove takes place to have a power failure suddenly or hydraulic efficiency system when breaking down, quick closedown hydraulic control circuit B puts into operation automatically, the first spherically seated electromagnet cut off valve 5 and the commutation of the second spherically seated electromagnet cut off valve, 10 dead electricity make the high-pressure oil that is stored in the energy storage flow into the rod chamber of gas stop valve hydro-cylinder by first check valve 9; Simultaneously, the fluid of hydro-cylinder rodless cavity is by the rod chamber of second check valve 4, hydraulic control one-way valve 6 and first check valve, 9 influent cylinder pressures.Thereby the oily influent cylinder pressure rod chamber of hydro-cylinder rodless cavity forms differential circuit, and gas stop valve is closed rapidly, realizes the scram of gas stop valve.
The working process of automatic oil recharging device C is as follows: when pressure switch 7 was sent low-voltage signal, the 3rd spherically seated electromagnet cut off valve 8 commutated from hydraulic fluid pressure oil line P to energy storage 2 repairings; When pressure switch was sent high-voltage signal, the 8 commutation cut-outs of the 3rd spherically seated electromagnet cut off valve, were in energy storage and treat working order to energy storage 2 repairings from hydraulic fluid pressure oil line P.
By above description as can be seen, hotblast stove provided by the utility model safety type gas stop valve hydraulic control device, adopt the quick closedown hydraulic control circuit, can suddenly have a power failure or hydraulic efficiency system when breaking down, make energy storage drive the hydro-cylinder fuel feeding gas stop valve is closed rapidly, guarantee hotblast stove safety in production, personnel safety and device security to gas stop valve.
Need to prove at last; the above only is preferred embodiment of the present utility model; rather than to the qualification of technical solutions of the utility model, any the utility model technical characterictic being equal to of being done replaced or corresponding improvement, still within protection domain of the present utility model.
Claims (3)
1. hotblast stove gas stop valve hydraulic control device, it is characterized in that, comprise hydro-cylinder (1) and quick closedown hydraulic control circuit (B), the hydraulic efficiency system of described quick closedown hydraulic control circuit (B) comprises bag type accumulator (2), ball relief valve (3), first check valve (9), hydraulic control one-way valve (6), second check valve (4), the first spherically seated electromagnet cut off valve (5) and the second spherically seated electromagnet cut off valve (10);
Wherein, aspect the hydraulicefficiency pipeline connection, pipeline connects ball relief valve (3) in succession from bag type accumulator (2) outlet and links to each other with the rod chamber of hydro-cylinder (1) with first check valve (9) back;
The rodless cavity of hydro-cylinder (1) link to each other with hydraulic control one-way valve (6) and second check valve (4) back with ball relief valve (3) and first check valve (9) between pipeline link to each other;
And the switching of the first spherically seated electromagnet cut off valve (5) and the second spherically seated electromagnet cut off valve (10) control hydraulic control one-way valve (6) is to form the hydraulic differential loop.
2. hotblast stove gas stop valve hydraulic control device as claimed in claim 1, it is characterized in that, also comprise the automatic oil recharging device (C) that is used for to the automatic repairing of bag type accumulator (2), described automatic oil recharging device (C) comprises pressure switch (7) and the 3rd spherically seated electromagnet cut off valve (8), and wherein the pressure oil pipeline (P) of hydraulic efficiency system connects the 3rd spherically seated electromagnet cut off valve (8), pressure switch (7), ball relief valve (3) and bag type accumulator (2) in succession.
3. hotblast stove gas stop valve hydraulic control device as claimed in claim 2, it is characterized in that, described pressure switch (7) has low-voltage signal and two switching value signals of high-voltage signal, is respectively applied for the opening and closing of control the 3rd spherically seated electromagnet cut off valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202452392U CN201746567U (en) | 2010-06-29 | 2010-06-29 | Hydraulic quick-acting switching-off control device for gas switching-off valve used for blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202452392U CN201746567U (en) | 2010-06-29 | 2010-06-29 | Hydraulic quick-acting switching-off control device for gas switching-off valve used for blast stove |
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| Publication Number | Publication Date |
|---|---|
| CN201746567U true CN201746567U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202452392U Expired - Fee Related CN201746567U (en) | 2010-06-29 | 2010-06-29 | Hydraulic quick-acting switching-off control device for gas switching-off valve used for blast stove |
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| CN (1) | CN201746567U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721289A (en) * | 2012-07-06 | 2012-10-10 | 鞍钢集团工程技术有限公司 | Energy-saving control method for heating furnace hydraulic system |
| CN106089821A (en) * | 2016-08-29 | 2016-11-09 | 中国重型机械研究院股份公司 | A kind of coal-gas recovering bell-shaped valve hydraulic control device |
| CN106221710A (en) * | 2016-10-09 | 2016-12-14 | 马鞍山钢铁股份有限公司 | A kind of safety interlock control system for dust collection for charging system |
-
2010
- 2010-06-29 CN CN2010202452392U patent/CN201746567U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721289A (en) * | 2012-07-06 | 2012-10-10 | 鞍钢集团工程技术有限公司 | Energy-saving control method for heating furnace hydraulic system |
| CN106089821A (en) * | 2016-08-29 | 2016-11-09 | 中国重型机械研究院股份公司 | A kind of coal-gas recovering bell-shaped valve hydraulic control device |
| CN106221710A (en) * | 2016-10-09 | 2016-12-14 | 马鞍山钢铁股份有限公司 | A kind of safety interlock control system for dust collection for charging system |
| CN106221710B (en) * | 2016-10-09 | 2020-05-05 | 马鞍山钢铁股份有限公司 | Safety interlocking control system for coal charging and dust removing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20190629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |