CN207539400U - Energy-saving large capacity precise pressure regulating valve structure-improved - Google Patents

Abstract

The utility model provides a kind of energy-saving large capacity precise pressure regulating valve structure-improved,Its ontology is by pressure regulating seat,Middle valve seat,Main valve seat,Pedestal links composition from top to bottom,The pressure regulating seat and middle valve base chamber are equipped with dummy piston,There is channel in this in valve seat,Weigh pressure passageway,Feedback channel,And the pressure regulation straight-bar with dummy piston cooperation,And aforementioned each channel all can mutually pass to bottom,And a balance pressure channel is additionally provided in main valve seat,And the main film for being embedded a flow straight-bar is provided between pedestal and main valve seat,And in the pedestal then have can be for the pressure ports of pneumatic fluid guiding,Overflow pipe and valve,By weighing apparatus pressure passageway with balancing the pneumatic fluid in pressure channel,Cooperation feedback channel one-way flow enables the intrinsic pneumatic fluid to reach equilibrium state,Enable the main film that overflow pipe to be driven to make shuttle axial movement,And then ontology is allowed under no pressure overflow,Make its energy saving and have both the effect of accurate quickly adjustment secondary pressure.

Description

Energy-saving large capacity precise pressure regulating valve structure-improved

Technical field

The utility model is related to a kind of energy-saving large capacity precise pressure regulating valve structure-improveds, mainly utilize body interior Feedback channel is enable its pneumatic fluid to stablize and is adjusted with one-way flow, and is aided with main film that overflow pipe is driven to make is reciprocating Axial movement, allow ontology under no pressure overflow, remain to quickly adjust out the purpose of high-precision secondary pressure.

Background technology

Pressure regulator valve is a kind of technology with pneumatic fluid as driving power source, is to be widely used in various differences In industry, but the power that pneumatic fluid is provided, the power of stability and gained output is to become with its air pressure size Change, therefore, to be stabilized power output and being controlled, existing pressure regulator valve satisfies quilt to the technology of control pressure Fluid pressure It generally uses, used pneumatic fluid is controlled according to this, to be stablized and controlled power；

However, during aforementioned pneumatic fluid regulates and controls, many pneumatic fluids conducts can be lost for no reason often and adjust out The purpose of high-precision secondary pressure, and under the demand for corresponding Automated fine processing, various manufacturers are being absorbed in research and development Correlation energy saves the technology of energy loss during processing procedure；

And the present inventor is led in " the energy-saving large capacity precise pressure regulating valve " of TaiWan, China patent of invention I576526 The pressure regulation straight-bar of inside configuration and Direct Action Type flow control straight-bar are crossed, the defeated pressure of cooperation institute, which allows, balances diaphragm and main film compression position During shifting, the action of smooth vertical displacement can be kept, enables its ontology under no pressure overflow situation, adjustment high-precision is able to and presses The purpose of power.

However, after production application, Direct Action Type flow control straight-bar, when balance pressure and the secondary side pressure of input During the mutual balance pressure gap edge of power, though the Direct Action Type flow control straight-bar can pass through main film and carry out intrinsic pressure with overflow pipe Power is discharged, but the aperture that need to open main film center simultaneously is adjusted with spout hole, and pressure differential is not away from being that difference is quite big In the case of, such mode still has not dexterous enough missing, and the composition component count of main film is excessive, can also cause interior Portion's balance pressure is balanced with secondary side pressure, more pressure outputs is generated, therefore, by aforementioned structure in practical application with grinding Know after studying carefully, there are still have the shortcomings that must improving.

Utility model content

The utility model is a kind of energy-saving large capacity precise pressure regulating valve structure-improved, and major technique purpose is profit With intrinsic feedback channel, make way for weighing apparatus pressure passageway and can quickly be reached with one-way flow with balancing the pneumatic fluid in pressure channel Into equilibrium state, and ontology can be allowed under no pressure overflow, also with main film overflow pipe to be driven to do shuttle axial movement High-precision secondary pressure can quickly be adjusted out.

The energy-saving large capacity precise pressure regulating valve structure-improved of the utility model, be by pressure regulating seat, middle valve seat, main valve seat, And pedestal connection forms an ontology, and main film and balance diaphragm are provided in the ontology, by pneumatic fluid through intrinsic logical Road, balance pressure channel, pressure ports, weighing apparatus pressure passageway will balance pressure channel and the gas in pressure ports using feedback channel Fluid is pressed, the quick purpose for reaching balance is carried out in a manner of one-way flow, and using the main film energy contact overflow pipe, therefore can made Main film drives overflow pipe to do shuttle axial movement, and then ontology can quickly be adjusted out high-precision under no pressure overflow The purpose of the secondary pressure of degree；

By the gearing between aforementioned structure, it is made to be applied on large capacity pressure regulator valve, can continued in the state of no overflow It is outer to be adjusted pressure increase and decrease, can also possess high-precision pressure regulation and quick function.

Description of the drawings：

Fig. 1 is the cross-sectional view of the output for not adjusting secondary pressure of the utility model preferred embodiment.

Fig. 2 is the close-up schematic view in Fig. 2 structural profiles of the utility model preferred embodiment.

Fig. 3 is that the cross-section structure for being output in working condition of the adjustment secondary pressure of the utility model preferred embodiment shows It is intended to.

Fig. 4 is the close-up schematic view in Fig. 3 structural profiles of the utility model preferred embodiment.

Fig. 5 is that the cross-section structure for being output in standby mode of the adjustment secondary pressure of the utility model preferred embodiment shows It is intended to.

Fig. 6 is the close-up schematic view in Fig. 5 structural profiles of the utility model preferred embodiment.

Fig. 7 is the status diagram of the utility model preferred embodiment.

Symbol description：

10... ontology

11... input terminal

12... output terminal

20... pressure regulating seat

21... knob

22... main spring

23... diaphragm is balanced

231... dummy piston

232... dummy piston through-hole

233... dummy piston upper projecting face

30... middle valve seat

31... pressure regulation straight-bar

32... feedback channel

321...PT throttle orifice

33... channel

40... main valve seat

41... main film

42... flow straight-bar

43... pressure channel is balanced

50... pedestal

51... pressure ports

511... pressure regulation subchannel

52... weigh pressure passageway

53... overflow pipe

531... overflow pipe through-hole

54... valve

P... pneumatic fluid

P1... a lateral pressure

P2... secondary pressure

Pt... pressure is balanced

Specific embodiment

Generally according to the utility model, the best feasible embodiment, and coordinate attached drawing Fig. 1Fig. 7 is described in detail Afterwards, the understanding to the utility model can be increased；

The utility model is a kind of energy-saving large capacity precise pressure regulating valve structure-improved, has an ontology 10, is provided with For the input terminal 11 and an output terminal 12 for pneumatic fluid P disengaging, pneumatic fluid P includes balance pressure PT, one Secondary lateral pressure P1, secondary pressure P2；

Aforementioned ontology 10 is mainly from top to bottom connected by valve seat 30, a main valve seat 40, a pedestal 50 in a pressure regulating seat 20, one Knot is formed, and a balance diaphragm 23 is equipped between pressure regulating seat 20 and middle valve seat 30, and air pressure can be supplied by being provided in this balance diaphragm 23 One dummy piston 231 of fluid P circulations, and then there is a channel 33, one weighing apparatus pressure passageway 52, a feedback channel in middle valve seat 30 32 and the pressure regulation straight-bar 31 that coordinates with dummy piston 231, the channel 33, weighing apparatus pressure passageway 52 and feedback channel 32 can be via 40 phase of main valve seat passes to pedestal 50, and a balance pressure channel 43 is additionally provided in the main valve seat 40, the pedestal 50 and main valve seat 40 Between be additionally provided with a main film 41, which is embedded with a flow straight-bar 42, and then have in the pedestal 50 can with for A pressure ports 51, an overflow pipe 53, a valve 54 for pneumatic fluid P guiding, the weighing apparatus pressure passageway 52 and the balance pressure Pneumatic fluid P in channel 43 enables the pneumatic fluid 52 to reach equilibrium state by 32 one-way flow of feedback channel, Enable the main film 41 that the overflow pipe 53 to be driven to make shuttle axial movement, and then allow ontology 10 under no pressure overflow, energy The quick purpose for adjusting out high-precision secondary pressure P2, the drive described herein overflow pipe 53 make shuttle axial fortune It is dynamic, specifically it is that can be balanced with the main film 41 by pneumatic fluid P, generates the action resetted downwards and upwards, make overflow pipe 53 overflow pipe through-hole 531 and valve 54, can carry out unlatching and closing state, thereby pneumatic fluid P be accelerated to be balanced.

Please refer to the 1st2 figures, 20 outside of pressure regulating seat are equipped with the knob 21 that can adjust pressure, when being adjusted, the rotation Button 21 can make to be set on 22 contact of the main spring balance diaphragm 23 inside pressure regulating seat 20, and from the air pressure stream of the input of input terminal 11 Body P can form a lateral pressure P1, a lateral pressure P1 by pressure ports 51 through channel 33 be circulated to pressure regulation straight-bar 31 by It stops, the pressure ports 51 through being equipped between channel 33 to adjust a throttle orifice of a lateral pressure P1 flow, and the tune Pressure passageway 51 is additionally provided with a pressure regulation subchannel 511 in main valve seat 40, so far, it is seen that one time lateral pressure P1 is circulated to pressure regulation straight-bar 31 with flow straight-bar 42 set by position, and the valve 54 of the overflow pipe 53 in pedestal 50 is still in off state, and this overflows Set overflow pipe through-hole 531 is opening in flow tube 53.

The 3rd is please referred to again7 figures, when adjusting output pressure, then the contact balance diaphragm 23 is downward for main spring 22, at this time Dummy piston 231 will push pressure regulation straight-bar 31 to bottom offset, a lateral pressure P1 being circulated to originally in the pressure regulation straight-bar 31, It continues to linked balance pressure channel 43 to pass through, until on main film 41, it is flat which is then formed as one The pressure that weighs Pt；

Balance pressure Pt will push main film 41 to bottom offset, and the flow straight-bar 42 being embedded in main film 41, Simultaneously by the lateral pressure P1 to be circulated by pressure regulation subchannel 511 and the balance pressure to be circulated by balance pressure channel 43 The influence of Pt when the passage contact overflow pipe 53 downwards of flow straight-bar 42, will make overflow pipe through-hole 531 in closed state, should Valve 54 is in then opening；And for main film 41 described herein is compared to the existing structure formed using more parts, change In a manner of by fixed clamp and simplifying number of parts, it is allowed to more stable, and be minimized product cost expense.

And after valve 54 is opened, which can form secondary pressure P2 by the valve 54, and this is secondary Lateral pressure can pass through the main film 41, and pass through the output terminal 12 and export, and part secondary pressure P2 is had in the process of circulation and is led to It crosses the weighing apparatus pressure passageway 52 and is circulated at the balance diaphragm 23 and be balanced；

When ontology 10 is in standby mode, pressure Pt is balanced>During secondary pressure P2, balance pressure Pt has one Part pressure flows into weighing apparatus pressure passageway 52 via feedback channel 32, be equipped in the feedback channel 32 to reduce balance pressure Pt with it is secondary Lateral pressure P2 pressure differentials away from a PT throttle orifices 321, and valve 54 at this time is then opened without coordinating, and also can smoothly allow secondary side Pressure P2 adherence pressures；

And as balance pressure Pt<During secondary pressure P2, it is logical via weighing apparatus pressure that secondary pressure P2 understands some pressure Road 52 flows into feedback channel 32, be equipped in the feedback channel 32 to reduce balance pressure Pt and secondary pressure P2 pressure differentials away from A PT throttle orifices 321, then depressurized via the dummy piston through-hole 232 set by dummy piston 231, make secondary side pressure Power P2 need not open main film 41 and overflow pipe 53, also can smoothly reduce secondary pressure P2；So far, it is seen that inside ontology 10 Pneumatic fluid P consumption figure can in the state of no overflow, carry out secondary pressure P2 increase or depressurize, remain to possess precision Adjustment and quick-adjustsing advantage.

The bottom of its aforementioned dummy piston 231, is additionally provided with a dummy piston upper projecting face 233, the dummy piston upper projecting face 233 have angle of inclination with rubber-coated, can mainly supply the output quantity of the pneumatic fluid P of 31 contact of pressure regulation straight-bar and increase, by This maintains the precision of adjustment secondary pressure P2, and rubber-coated hardness in the middle for 70 degree with up to 90 degree, inclination angle Degree can be 90 degree and 60 degree of any of which angle, not limit, and this rubber-coated thickness then between 0.1 to It is adjusted between 0.25mm, thickness is thinner, then pneumatic fluid P can be allowed quick and smoothly pass over the balance diaphragm 23 and arranged Gas.

In conclusion the energy-saving large capacity precise pressure regulating valve structure-improved of the utility model, newly-increased by 10 inside of ontology If feedback channel 32 and the feedback channel 32 in PT throttle orifices 321, make balance pressure Pt in pneumatic fluid P with it is secondary The pressure differential that lateral pressure P2 both is reduced is away from and cooperation is embedded with the main film 41 of flow straight-bar 42 and is opened with corresponding The overflow pipe 53 closed makes ontology 10 under no pressure overflow, can quickly and accurately be adjusted the purpose of secondary pressure.

It the above is only the preferred embodiment of the utility model, it should be pointed out that these embodiments are merely to illustrate this Utility model rather than limitation the scope of the utility model, moreover, after the content of the utility model has been read, this field Related technical personnel can make the utility model various changes or modification, and such equivalent forms are equally fallen into appended by the application Claims limited range.

Claims (4)

1. a kind of energy-saving large capacity precise pressure regulating valve structure-improved, it includes：One ontology (10) has for a pneumatic fluid (P) input terminal (11) for disengaging and an output terminal (12), the ontology (10) be by valve seat (30) in a pressure regulating seat (20), one, One main valve seat (40) and a pedestal (50) connection are formed, and a balance diaphragm is equipped between the pressure regulating seat (20) and middle valve seat (30) (23), a dummy piston (231) for pneumatic fluid (P) circulation, valve seat (30) in this can be supplied by being provided in the balance diaphragm (23) Inside there is a channel (33), a weighing apparatus pressure passageway (52), a feedback channel (32) and a PT throttle orifices (321) and and the balance One pressure regulation straight-bar (31) of piston (231) cooperation, and the channel (33), the weighing apparatus pressure passageway (52) and the feedback channel (32) can be through The main valve seat (40) mutually passes to the pedestal (50), and is additionally provided with a balance pressure channel (43), the pedestal in the main valve seat (40) (50) main film (41) is equipped between the main valve seat (40), which is embedded with a flow straight-bar (42)；And it is somebody's turn to do The pressure ports (51), an overflow pipe (53), a valve for pneumatic fluid (P) guiding can be used by then having in pedestal (50) Door (54)；It is characterized in that：The weighing apparatus pressure passageway (52) and the pneumatic fluid (P) in the balance pressure channel (43), pass through this time Awarding channel (32) one-way flow makes the pneumatic fluid (P) be able to reach equilibrium state, makes the main film (41) that can drive the overflow Pipe (53) makees shuttle axial movement, and then allow ontology (10) that can quickly adjust out high-precision two under no pressure overflow The purpose of secondary lateral pressure.

2. energy-saving large capacity precise pressure regulating valve structure-improved according to claim 1, which is characterized in that the dummy piston (231) also include：One dummy piston upper projecting face (233), set on the bottom of the dummy piston (231), the dummy piston contact Face (233) has angle of inclination with rubber-coated, and the output quantity of the pneumatic fluid (P) of pressure regulation straight-bar (31) contact can be supplied to increase Add, use the precision for maintaining pressure.

3. energy-saving large capacity precise pressure regulating valve structure-improved according to claim 2, which is characterized in that the dummy piston The angle of inclination of upper projecting face (233) for 90 degree with 60 degree of any of which angles, and rubber-coated hardness be 70 degree with up to 90 Degree, thickness are adjusted between 0.1mm between 0.25mm, and thickness is thinner, can allow pneumatic fluid (P) in the balance diaphragm (23) Exhaust it is faster.

4. energy-saving large capacity precise pressure regulating valve structure-improved according to claim 1, which is characterized in that the pressure regulation straight-bar (31) do not have in smooth sphere and rubber coated in top, pneumatic fluid (P) is made to live in by the pressure regulation straight-bar (31) and balance The exhaust of plug upper projecting face (233) reach quick and smooth.