CN207018283U - A kind of refuse incineration grate furnace hydraulic system - Google Patents
A kind of refuse incineration grate furnace hydraulic system Download PDFInfo
- Publication number
- CN207018283U CN207018283U CN201720619803.4U CN201720619803U CN207018283U CN 207018283 U CN207018283 U CN 207018283U CN 201720619803 U CN201720619803 U CN 201720619803U CN 207018283 U CN207018283 U CN 207018283U
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- backstepping
- forwards
- compensated
- 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.)
- Active
Links
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model discloses a kind of refuse incineration grate furnace hydraulic system, including 3 pusher pressure-compensated valves arranged side by side, backstepping pressure-compensated valve, forwards pressure-compensated valves respectively with pusher electricity proportional reversing valve, backstepping electricity proportional reversing valve, forwards electricity proportional reversing valve is connected, and the pusher pressure-compensated valve, backstepping pressure-compensated valve, the other end of forwards pressure-compensated valve are connected to constant pressure variable displacement pump.There is greater advantage relative to original system in fire grate operation using hydraulic system of the present utility model：Fire grate by it is static be transferred to operating state when, now oil pump is in the state of constant pressure source, as long as ratio telecommunications inputs, oil cylinder can quick acting, faster system response；By the regulation of constant pressure variable displacement pump itself, it ensure that the output of flow with the consistent of demand, efficient energy-saving；When multiple actions perform simultaneously, the speed of actuator action only with proportioning valve aperture be electric signal size it is related, it is unrelated with load, ensure any demand action speed progress as required.
Description
Technical field
It the utility model is related to the manufacture of environmental protection equipment, the technique application of waste incineration, what design of Hydraulic System was combined
Technology, specifically a kind of refuse incineration grate furnace hydraulic system.
Background technology
Fire grate type incinerator is to obtain most widely used domestic garbage incineration equipment at present, has stabilization, reliably, is applicable
Property it is wide the characteristics of, large scale rubbish focus on aspect it is with the obvious advantage.
Rubbish is pushed in stove, by backstepping fire grate section, forwards fire grate section, drying is completed, lights a fire, burning, after-flame
Overall process.The pusher of rubbish, backstepping fire grate, the motion of forwards fire grate are required for the driving of associated mechanisms, it is necessary to have a set of high
Imitate reliable hydraulic system and complete above-mentioned action.
Because the current refuse classification in China work is undesirable, cause house refuse water content high, rubbish complicated components and with season
The features such as the change of section property is big, rubbish is had to sufficiently be stirred during burning, rolls, and stirs, and the speed of rolling again must
Must be conscientiously controllable, dry, catch fire simultaneously, what the rubbish under the different fired states such as after-flame must be acted simultaneously again will
Ask.The requirement of these features, ensure and burn the fluid power system that is smoothed out adjustable, the different loads bar that must possess flow proportional
Under part, the ability of several actions execution simultaneously.Meanwhile concentration is realized, succinct automatically controls.To ensure garbage power plant just
Often operation.
Utility model content
In order to solve above-mentioned technical problem present in prior art, the utility model provides a kind of garbage incinerator fire grate
Stove hydraulic system, including 3 pusher pressure-compensated valves arranged side by side, backstepping pressure-compensated valve, forwards pressure-compensated valves respectively and push away
Expect electric proportional reversing valve, backstepping electricity proportional reversing valve, forwards electricity proportional reversing valve is connected, the pusher pressure-compensated valve, backstepping
Pressure-compensated valve, the other end of forwards pressure-compensated valve are connected to constant pressure variable displacement pump.
Further, in hydraulic work system gap, hydraulic system is in high pressure conditions, and constant pressure variable displacement pump is stable in zero-emission
Near amount.
Further, when performing push, backstepping fire grate, and/or forwards fire grate, speed and the pusher electricity of actuator action
The aperture of proportional reversing valve, backstepping electricity proportional reversing valve, and/or forwards electricity proportional reversing valve is electric signal size correlation, with bearing
Carry unrelated.
The utility model advances mainly for the pusher of rubbish, conveying, burning fire grate, the control of the action such as retrogressing.This reality
With a kind of hydraulic system of new offer, it is ensured that the waste incineration under operating mode complicated and changeable is smoothed out.
Have the beneficial effect that：
Had using hydraulic system provided by the utility model relative to original system in fire grate operation larger more excellent
Gesture.
A. fire grate by it is static be transferred to operating state when, now oil pump is in the state of constant pressure source, as long as ratio is electric
Letter input, oil cylinder can quick acting, faster system response.
B. by the regulation of constant pressure variable displacement pump itself, it ensure that the output of flow with the consistent of demand, efficient energy-saving.
C. when multiple actions perform simultaneously, the speed of actuator action is only the big of electric signal with the aperture of proportioning valve
Small correlation, it is unrelated with load, ensure that speed is carried out as required for any demand action.
Brief description of the drawings
Fig. 1 is refuse incineration grate furnace hydraulic system structure figure of the present utility model；
Each reference implication in figure：1. constant pressure variable displacement pump；2. check valve；3. high pressure filter；4. pusher pressure compensation
Valve；5. pusher electricity proportional reversing valve；6. shuttle valve；7. pusher oil cylinder；8. backstepping oil cylinder；9. forwards oil cylinder group；10. backstepping electricity ratio
Example reversal valve；11. backstepping pressure-compensated valve；12. forwards electricity proportional reversing valve；13. forwards pressure-compensated valve；14. electromagnetism overflows
Flow valve.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, refuse incineration grate furnace hydraulic system of the present utility model, including 3 pusher pressure arranged side by side are mended
Valve 4, backstepping pressure-compensated valve 11, forwards pressure-compensated valve 13 is repaid to commutate with pusher electricity proportional reversing valve 5, backstepping electricity ratio respectively
Valve 10, forwards electricity proportional reversing valve 12 are connected, pusher pressure-compensated valve 4, backstepping pressure-compensated valve 11, forwards pressure-compensated valve 13
The other end and high pressure filter 3, check valve 2 and constant pressure variable displacement pump 1 concatenates.
System pressure is determined that overflow valve setting value is more bigger than pressure fuel pump value by constant pressure variable displacement pump 1, is played safeguard protection and is made
With.
Running situation is as follows：
When being a. that oil cylinder does not work in the gap of system work, fluid is from constant pressure variable displacement pump 1, by check valve 2, through high pressure
Filter 3, respectively by 3 pusher pressure-compensated valves 4 arranged side by side, backstepping pressure-compensated valve 11, forwards pressure-compensated valves 13, enter
Enter to pusher electricity proportional reversing valve 5, backstepping electricity proportional reversing valve 10, the P mouths of forwards electricity proportional reversing valve 12.
Now system does not work, and inputs to electric proportional valve without extraneous electric signal, proportional reversing valve keeps middle position, due to commutation
Valve Median Function is O-shaped, and high-voltage oil liquid is closed in the chamber not oil-feeds of P mouths, oil cylinder or so two, executing agency's attonity.Due to
Fluid is closed, and system pressure raises rapidly, and when pressure reaches the variable point of constant pressure pump, oil pump starts variable, by maximum
Discharge capacity changes to zero delivery and finally stablized near zero delivery.Now, although system pressure is very high, exported without flow, because
Also inactivity is exported for this, not only saves, it is often more important that due to no power waste, system is produced without waste heat in the intervals of business
Raw, oil temperature is stable, has fundamentally ensured the functional reliability of system.
B. system such as performs the feeding action of pusher oil cylinder when performing individual part, and operation principle is led to for high-voltage oil liquid
To cross from constant pressure variable displacement pump 1 by high pressure filter 3, pusher pressure-compensated valve 4 enters the P mouths of pusher electricity proportional reversing valve 5, this
When Y2 obtain electric, the work of 5 right position of pusher electricity proportional reversing valve, hydraulic oil enters the rodless cavity of pusher oil cylinder 7, and pusher oil cylinder 7 has bar
Chamber oil return returns to fuel tank by pusher electricity proportional reversing valve 5, and cylinder piston rod stretches out, and drives related executing agency to be sent into stove
Material.And after the completion of feeding action, Y1 obtains electric, 5 left position of pusher electricity proportional reversing valve work, and hydraulic oil enters pusher oil cylinder 7
Rod chamber, the rodless cavity oil return of oil cylinder 7 return to fuel tank by electric proportional reversing valve 5, and action is retracted in execution.
In whole motion process, cylinder efficient speed can be by electric signal proportion adjustment, and the motion of pusher can be with
0 is realized to the stepless speed regulation between maximum, meets the various speed requirements under complex working condition.
The operating principle of backstepping fire grate is similar with pusher action, and simply control valve becomes backstepping proportional reversing valve 10, than
The example automatically controlled interface of electromagnet becomes Y3, Y4.
Forwards fire grate operating principle is also in this way, now control valve becomes forwards proportional reversing valve 12, proportion electro-magnet
It is automatically controlled to become Y5, Y6；The difference is that forwards oil cylinder increasing number, becomes a valve while controls two oil cylinders, oil cylinder
The mechanical actuating mechanism that synchronism is acted by forwards ensures.
C. operation principle when system progress 2 simultaneously or whole 3 act.
Fluid, by check valve 2, through high pressure filter 3, passes through 3 pusher pressure arranged side by side respectively from constant pressure variable displacement pump 1
Recuperation valve 4, backstepping pressure-compensated valve 11, forwards pressure-compensated valve 13, enter pusher electricity proportional reversing valve 5, backstepping electricity ratio
Reversal valve 10, the P mouths of forwards electricity proportional reversing valve 12, now due to there is the setting of pressure-compensated valve, no matter act the negative of which
Carry size, the control of flow all only with proportioning valve aperture be electric signal size it is related, it is and unrelated with other factors, so lead to
The speed of service of the size control any action for the regulation electric current crossed.
Claims (3)
1. a kind of refuse incineration grate furnace hydraulic system, include the pusher pressure-compensated valve of arranged in parallel（4）, backstepping pressure compensation
Valve（11）, forwards pressure-compensated valve（13）, the pusher pressure-compensated valve（4）, backstepping pressure-compensated valve（11）, forwards pressure mend
Repay valve（13）Respectively with pusher electricity proportional reversing valve（5）, backstepping electricity proportional reversing valve（10）, forwards electricity proportional reversing valve（12）Phase
Even, it is characterised in that：The pusher pressure-compensated valve（4）, backstepping pressure-compensated valve（11）, forwards pressure-compensated valve（13）It is another
One end is connected to constant pressure variable displacement pump（1）.
2. refuse incineration grate furnace hydraulic system as claimed in claim 1, it is characterised in that：In hydraulic work system gap,
Hydraulic system is in high pressure conditions, constant pressure variable displacement pump（1）Stabilization is near zero delivery.
3. refuse incineration grate furnace hydraulic system as claimed in claim 1 or 2, it is characterised in that：Performing push, backstepping stove
Row, and/or during forwards fire grate, the speed and pusher electricity proportional reversing valve of actuator action（5）, backstepping electricity proportional reversing valve（10）
And/or forwards electricity proportional reversing valve（12）Aperture be electric signal size correlation, it is unrelated with load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720619803.4U CN207018283U (en) | 2017-05-31 | 2017-05-31 | A kind of refuse incineration grate furnace hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720619803.4U CN207018283U (en) | 2017-05-31 | 2017-05-31 | A kind of refuse incineration grate furnace hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018283U true CN207018283U (en) | 2018-02-16 |
Family
ID=61476960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720619803.4U Active CN207018283U (en) | 2017-05-31 | 2017-05-31 | A kind of refuse incineration grate furnace hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018283U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577693A (en) * | 2020-05-07 | 2020-08-25 | 上海建工集团股份有限公司 | Hydraulic cylinder oil circuit locking valves |
| CN111577712A (en) * | 2020-05-07 | 2020-08-25 | 上海建工集团股份有限公司 | Oil way control system for jacking oil cylinder of integral steel platform |
| CN112360833A (en) * | 2020-11-11 | 2021-02-12 | 三一汽车起重机械有限公司 | Flow control system, flow control method and crane |
-
2017
- 2017-05-31 CN CN201720619803.4U patent/CN207018283U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577693A (en) * | 2020-05-07 | 2020-08-25 | 上海建工集团股份有限公司 | Hydraulic cylinder oil circuit locking valves |
| CN111577712A (en) * | 2020-05-07 | 2020-08-25 | 上海建工集团股份有限公司 | Oil way control system for jacking oil cylinder of integral steel platform |
| CN112360833A (en) * | 2020-11-11 | 2021-02-12 | 三一汽车起重机械有限公司 | Flow control system, flow control method and crane |
| CN112360833B (en) * | 2020-11-11 | 2023-03-14 | 三一汽车起重机械有限公司 | Flow control system, flow control method and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207018283U (en) | A kind of refuse incineration grate furnace hydraulic system | |
| CN104806588B (en) | Dual-pump flow-converging hydraulic control system | |
| CN105351263B (en) | A kind of differential hydro cylinder control loop | |
| CN205260455U (en) | Novel boom telescope hydraulic control return circuit | |
| CN103850286B (en) | A kind of electric drive hydraulic crawler excavator minus flow system based on constant displacement pump | |
| CN106052312A (en) | Piston type squeezing drying system | |
| CN102261351A (en) | Simple proportional load sensitive hydraulic system | |
| CN110005664B (en) | Bidirectional speed regulation hydraulic control system based on negative load oil return cavity of hydraulic cylinder | |
| CN201462782U (en) | Energy saving control system for steam boiler | |
| CN203297181U (en) | load sensing system | |
| CN109914520B (en) | Energy-saving device for recycling potential energy of movable arm of excavator based on supercharger | |
| CN205063484U (en) | Fluid pressure type stereo garage liquid accuse system | |
| CN105952700A (en) | Loader variable multi-stage power control module and hydraulic system | |
| CN105782154A (en) | Hydraulic machining machine, hydraulic system thereof and control method of hydraulic system | |
| CN109267599A (en) | The excavator dynamical system that distributed two parallel pumps directly drive | |
| CN103711172B (en) | The quantitative combining hydraulic system of loader four pump | |
| CN209892555U (en) | Bidirectional speed regulation hydraulic control system based on hydraulic cylinder negative load oil return cavity | |
| CN102535571A (en) | System and method of regeneration control based on double spools for hydraulic excavator | |
| CN104929171B (en) | A kind of high-order discharging lifting swing arm energy-saving control system | |
| CN204959857U (en) | Hydraulic power assembly for excavator | |
| CN203130464U (en) | Variable pump output pressure control device and engineering mechanical equipment | |
| CN205062868U (en) | A high position is unloaded and is lifted swing arm energy -saving control system | |
| CN204511285U (en) | New drilling machine master winch velocity-controlled system | |
| CN107269633A (en) | Open variable pump system integrating constant-pressure function and load-sensitive function | |
| CN106089868A (en) | Energy recovery pump, road vehicle and engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |