CN107246490A - Balance type pressure reducing valve - Google Patents
Balance type pressure reducing valve Download PDFInfo
- Publication number
- CN107246490A CN107246490A CN201710454394.1A CN201710454394A CN107246490A CN 107246490 A CN107246490 A CN 107246490A CN 201710454394 A CN201710454394 A CN 201710454394A CN 107246490 A CN107246490 A CN 107246490A
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- China
- Prior art keywords
- oil
- piston
- hole
- pressure
- door
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims abstract description 14
- 230000033228 biological regulation Effects 0.000 claims description 31
- 239000004519 grease Substances 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 8
- 241001149930 Protura <class> Species 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 55
- 239000010720 hydraulic oil Substances 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000006837 decompression Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/383—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
A kind of hydraulic oil that can export generator main oil pump is adapted for the balance type pressure reducing valve of sealing oil system needs oil after decompression adjustment, the valve element of the valve automatically controls gate seat hole aperture to keep the balance of piston upper and lower ends oil pressure under the drive of piston, to ensure that it is constant that outlet oil pressure is stablized, the back pressure regulating valve for no matter depressurizing valve outlet connection is turned on or off to system fuel feeding, its pressure-reducing valve outlet oil pressure is stable in a setting numerically, it will not fluctuate, vibrations, oil-break, and very easily outlet oil pressure can be adjusted manually in scope of design using outlet pressure adjusting means as needed, simultaneously, for safe operation, equipment is avoided to break down in use, the equipment is integrally without consumable accessory, it is adapted to the condition of longtime running.
Description
Art
It is converted into being adapted to generator shaft sealing fuel feeding system the present invention relates to a kind of hydraulic oil for exporting generator main oil pump
A kind of decompressor of pressure duty oil, particularly a kind of balance type pressure reducing valve needed for system.
Background technology
At present, the pressure-reducing valve that domestic power station single-machine capacity is used in more than 300MW Generator Set sealing oil systems is all
It is to be used as the control device of standby oil sources, when the fuel turn manifold pump of generator sealing oil system breaks down or principal pressure regulation
When valve reason causes Seal Oil oil-break or the pressure to be reduced to setting, back pressure regulating valve, which is then opened rapidly, devotes oneself to work to being
System fuel feeding there is provided to back pressure regulating valve work oil sources be the hydraulic oil that exports generator main oil pump be decompressed to it is suitable
The pressure-reducing valve of sealing oil system oil.Because pressure-reducing valve is related to the operation safety of generator, so what the device was worked can
Propose very high requirement by property, existing Generator Set selects imported with original packaging equipment substantially, but be due to security, it is reliable
Property still suffers from defect, so the equipment can only be used as standby oil sources, its reason is the structure base that this kind of pressure-reducing valve is used
Originally it is, as decompression the only resource, to be separated between spring and gate seat body by colloid barrier film directly by spring, but due to Seal Oil system
Equipment of uniting is complicated, and pipeline also compares many, and easily with system resonance occurs for the pressure-reducing valve directly depressurized by spring in operation
Pressure fluctuation even oil-break is caused, while the colloid barrier film of pressure-reducing valve often ruptures, makes oil pressure out of hand.
The content of the invention
The purpose of the present invention is：Design is a kind of can be adjusted the hydraulic oil of generator main fuel pump outlet to suitable Seal Oil
System needs the pressure-reducing valve of pressure, and no matter the back pressure regulating valve of this decompression valve outlet connection is opened and disconnected supplies to system
Oil, its pressure-reducing valve outlet oil pressure is stable in a setting numerically, will not fluctuate, shake, oil-break.Meanwhile, this sets
It is standby overall without consumable accessory, it will not be caused the accident in operation because of some damage of components.The invention is that output oil pressure is steady
Fixed, safe and reliable, durable balance type pressure reducing valve.
The present invention is achieved in the following manner：Balance type pressure reducing valve, including：Bonnet 1, valve body 3, piston 4, valve element 6,
Back-moving spring 23 and the pressure-regulating device being made up of cone regulation door 8, adjusting rod 33, regulation spring 35.It is characterized in that：Valve body
3 first half is piston chamber 2, and lower half is valve body 12 (as shown in Figure 1, Figure 3), and the baseplane of piston chamber 2, which is provided with, surrounds axis
Annular dislodger 5, the center of baseplane is provided with valve body inner bore 20, and successively with inlet space 18, gate seat hole 17, go out the phase of grease chamber 13
Be combined with piston 4 in logical and same axis, the wherein same diameter of valve body inner bore 20 and gate seat hole 17, piston chamber 2, piston 4 it is upper
Provided with spring base 22 and equipped with back-moving spring 23 in the middle of end, the upper end of back-moving spring 23 is inserted into the spring retainer hole 24 of bonnet 1
Interior, the lower surface middle part of piston 4 is provided with annular boss 21, and the height of annular boss 21 determines the lower surface of piston 4 and piston chamber 2
Gap when bottom does not work, the centre of annular boss 21 is provided with valve element 6 and is made of one with piston 4 and same axis,
Piston 4 is respectively placed in piston chamber 2 and valve body inner bore 20 with valve element 6 and in dynamic cooperation, and the cone door 14 of valve element bottom is located at
In gate seat hole 17, the aperture in the control gate seat hole 17 that moved up and down with valve element, valve body 12 does squarely tetrahedron (such as Fig. 3 institutes
Show), tetrahedral two of which symmetrical plane is respectively equipped with oil inlet 15 and oil-out 10, oil inlet 15 successively with oil-feed inclined hole
16th, inlet space 18, gate seat hole 17, go out grease chamber 13, fuel-displaced inclined hole 11, oil-out 10 and communicate (as shown in Figure 1), oil-feed inclined hole 16 is also
Provided with the oily fuel feed hole 19 of high voltage control communicated with piston chamber 2 base circle dislodger 5, fuel-displaced inclined hole 11 is provided with and piston chamber 2
The outlet oil pressure feedback hole 7 that top is communicated, another plane of valve body 12 is provided with by adjusting rod 33, regulation pole socket 34, regulation bullet
The outlet pressure adjusting means that spring 35, cone regulation door 8, the control aperture of door 30 on valve body, draining room 31 are constituted, is pressed with outlet
The relative plane of apparatus for adjusting force is additionally provided with drain mast 28, and drain mast 28 is sequentially communicated draining intercommunicating pore 36, draining room 31 (as schemed
Shown in 3).In outlet pressure adjusting means, the external screw thread and the screw-internal thread fit of valve body 12 for adjusting pole socket 34 are fixed on valve body
On 12, adjust the internal thread of pole socket 34 and coordinate with the external screw thread of the middle part of adjusting rod 33, the handwheel of rotation adjusting lever 33 can make
It is also sequentially provided with control door along along the regulation axis precession of pole socket 34 or back-out, with the valve body 12 of pole 34 same axis of seat and led
To hole 9, draining room 31, control aperture of door 30, control grease chamber 29, control grease chamber 29 is through third connecting hole 27, the second intercommunicating pore 26, the
Being furnished with the annular dislodger 5 (as shown in Figure 2) of one intercommunicating pore 25 connection piston chamber 2 bottom, control door pilot hole 9 can be in hole
Cone regulation door 8 slidably, the conehead 32 of cone regulation door 8 front end is pressed in control aperture of door 30 side, adjusts spring 35 1
End is placed in the hole at cone regulation door 8 rear portion and withstands the baseplane in hole, and the other end is enclosed on the medial end center of adjusting lever 33
Cylindrical bar outside, and be against the raised head face that adjusting rod middle part connects with cylindrical bar, the precession of adjusting lever 33 and
Back-out can change the compression height such as (shown in Fig. 2, Fig. 3) of spring 35.
The present invention operation principle be：Oil inlet 15 is connected into hydraulic oil pipeline first, oil-out 10 connects empty side seal
Oily oil supply system (as shown in Figure 1), devotes oneself to work and passes through oil inlet 15, oil-feed inclined hole 16 from the hydraulic oil of hydraulic oil pipeline later
Into inlet space 18, while the oily fuel feed hole 19 of the configured high voltage control in oil-feed inclined hole 16 of hydraulic oil, annular dislodger 5, make
For the lower surface of piston 4, piston 4 is promoted to move up, the valve element 6 being made of one therewith is also moved up, valve element lower end
Cone door 14 is gradually opened, and is connected inlet space 18 and is gone out grease chamber 13, the hydraulic oil of inlet space 18 is through going out grease chamber 13, fuel-displaced inclined hole
11st, oil-out 10 is to system fuel feeding, while the configured outlet oil pressure feedback hole 7 in fuel-displaced inclined hole 11 of outlet oil pressure, piston chamber 2
The upper end of piston 4 is acted on, the high voltage control oil phase interaction with acting on piston controls piston up-down, drive valve
The cone door 14 of core controls the size (as shown in Figure 1) of the aperture of gate seat hole 17 when the pressure of the upper and lower ends of piston 4 reaches balance
Piston 4 starts transfixion, and the aperture in gate seat hole 17 is also fixed, and outlet oil pressure is also stabilized in one numerically, and this is this hair
One of bright feature.Change the high voltage control oil pressure of piston, the aperture in gate seat hole 17 accordingly changes, and outlet oil pressure also makees phase
It should change, the feedback oil pressure for acting on the upper end of piston 4 also changes therewith, and the pressure with the lower end of piston 4 be reached new
Balance, make outlet oil pressure stable it is new numerically.In order to be able to make outlet oil pressure meet system requirements, and can conveniently it adjust, this
Invention is provided with a manual pressure adjustment mechanism, adjusts the adjusting rod 33 of manual pressure adjustment mechanism, you can obtain one completely
The oil pressure of stabilization needed for pedal system, the working method of pressure-regulating device is as follows：Through the oily fuel feed hole of high voltage control below piston
19 hydraulic oils introduced are successively through annular dislodger 5, the first intercommunicating pore 25, the second intercommunicating pore 26, third connecting hole 27, control oil
Room 29 (as shown in Figure 2), control aperture of door 30, the control of conehead 32 through cone regulation door 8 front end enter draining room 31, again by draining
Intercommunicating pore 36, drain mast 28 release.Rotation adjusting lever 33 can change the regulation compression height of spring 35, so as to change cone regulation door
The pressure of 8 front end coneheads 32 bore on the door, plays a part of adjustment effect in piston lower portion oil pressure, enables pressure-reducing valve according to need
Outlet pressure is adjusted, this is a further feature of the present disclosure.The present invention through many generating set installation and operations, it was demonstrated that the valve it is each
Item performance meets design idea of the present invention.
The beneficial effects of the invention are as follows, the hydraulic oil that main oil pump can be exported it is safe and reliable be used for Seal Oil fuel feeding system
The characteristics of uniting, and there is shockproof, voltage stabilizing, safety durable, and it is easy to adjust, the pressure oil exported through the valve can not only be used
Make the standby oil sources of sealing oil system, the work oil sources that can also decide is used, this for power plant safe operation and save the energy
All there is substantial meaning, the valve substitutes import equipment and also saves many buying expenseses and maintenance cost.
Brief description of the drawings
Accompanying drawing 1 is balance type pressure reducing valve front view
Accompanying drawing 2 is balance type pressure reducing valve A-A sectional views
Accompanying drawing 3 is balance type pressure reducing valve B-B sectional views
Sequence number in figure：1 bonnet, 2 piston chamber, 3 valve bodies, 4 pistons, 5 annular dislodgers, 6 valve elements, 7 outlet oil pressure feedback holes,
8 cones regulation door, 9 control door pilot holes, 10 oil-outs, 11 fuel-displaced inclined holes, 12 valve bodies, 13 go out grease chamber, 14 cones door, 15 entered
Hydraulic fluid port, 16 oil-feed inclined holes, 17 gate seat holes, 18 inlet spaces, the oily fuel feed hole of 19 high voltage controls, 20 valve body inner bores, 21 annular boss, 22
Spring base, 23 back-moving springs, 24 spring retainer holes, 25 first intercommunicating pores, 26 second intercommunicating pores, 27 third connecting holes, 28 drainings
Pipe, 29 control grease chambers, 30 control aperture of doors, 31 draining rooms, 32 coneheads, 33 adjusting rods, 34 regulation pole sockets, 35 regulation springs, 36 are let out
Oily intercommunicating pore
Embodiment
As Figure 1-3, a kind of balance type pressure reducing valve includes bonnet 1, valve body 3, piston 4, back-moving spring 23, the and of valve element 6
The manual pressure adjustment mechanism that the critical pieces such as door 8, adjusting rod 33, regulation pole socket 34, regulation spring 35 are constituted is adjusted by cone.
It is characterized in that a piston 4 being made of one with valve element 6 is placed in the piston chamber 2 of the first half of valve body 3, and with movable valve plug together
Move up and down, when valve element 6 moves up and down, the cone of the lower end of valve element 6 14 controls the size of the aperture of gate seat hole 17, in order to
It is closed when not working, the upper end of piston 4 sets a back-moving spring 23, back-moving spring lower end is placed in the middle of piston 4
In spring base 22, to prevent spring transverse shifting in upper end insertion bonnet spring retainer hole 24, for accurately control as needed
Piston up-down processed, that is, control the aperture in gate seat hole 17, and the oily fuel feed hole 19 of a high voltage control is provided with oil-feed inclined hole 16,
Hydraulic oil is set to act on the bottom surface of piston 4 by fuel feed hole 19, annular dislodger 5, while being provided with one on fuel-displaced inclined hole 11
Lead to the outlet oil pressure feedback hole 7 of the upper surface of piston chamber 2, the oil pressure of decompression valve outlet is fed back to the upper surface of piston 4 (as schemed
Shown in 1), when piston upper and lower ends surface pressure reaches balance, piston then stablizes motionless, and now the valve exports a stable oil
Pressure, in order to obtain preferable outlet oil pressure, and can be such that outlet oil pressure adjusts as needed, and one is provided with valve body manually
Pressure-regulating device to adjustment effect in the oil pressure (as shown in Figure 2 and Figure 3) of the bottom surface of piston 4.Adjusted when by rotatable handle
During bar 33, the screw-internal thread fit of external screw thread and regulation pole socket 34 on adjusting rod 33 makes adjusting rod precession or back-out, so as to change
The compression height of regulation spring 35 reaches the change cone regulation thrust purpose of door 8, when the control grease chamber communicated with annular dislodger 5
When pressure in 29 adjusts the thrust of door 8 higher than cone, the conehead 32 of cone regulation door 8 front end is open, and control aperture of door 30 is opened
Mouth opens big, the oil pressure reduction of control grease chamber 29, until the thrust for controlling door 8 with cone reaches balance.In order to not influence cone to control
The thrust of the setting of door 8, the control oil for entering draining room 31 by control aperture of door 30 releases (such as through draining intercommunicating pore 36, drain mast 28
Shown in Fig. 3).
Claims (2)
1. a kind of balance type pressure reducing valve, including：Bonnet 1, valve body 3, piston 4, valve element 6, back-moving spring 23 and door is adjusted by cone
8th, the pressure-regulating device that adjusting rod 33, regulation spring 35 are constituted, it is characterized in that：The first half of valve body 3 is piston chamber 2, lower half
Portion is valve body 12 (as shown in Figure 1, Figure 3), and the baseplane of piston chamber 2 is provided with the annular dislodger 5 around axis, the center of bottom surface
Provided with valve body inner bore 20, and successively with inlet space 18, gate seat hole 17, go out grease chamber 13 and communicate and same axis, wherein valve body inner bore
20 and the same diameter in gate seat hole 17, it is combined with the middle of piston 4, the upper end of piston 4 provided with spring base 22 and equipped with multiple in piston chamber 2
Position spring 23, the upper end of back-moving spring 23 is inserted into the spring retainer hole 24 of bonnet 1, and the lower surface middle part of piston 4 is provided with
Annular boss 21, the height of annular boss 21 determines the gap when lower surface of piston 4 does not work with the bottom of piston chamber 2, convex annular
The centre of platform 21 is provided with valve element 6 and is made of one with piston 4 and same axis, and piston 4 is respectively placed in piston chamber with valve element 6
2 and valve body inner bore 20 in and in dynamic cooperation, the cone door 14 of valve element bottom is located in gate seat hole 17, moves up and down and control with valve element
The aperture in gate seat hole 17 processed, valve body 12 does squarely tetrahedron (as shown in Figure 3), tetrahedral two of which symmetrical plane point
Not She You oil inlet 15 and oil-out 10, oil inlet 15 successively with oil-feed inclined hole 16, inlet space 18, gate seat hole 17, go out grease chamber 13,
Fuel-displaced inclined hole 11, oil-out 10 are communicated (as shown in Figure 1), and oil-feed inclined hole 16 is additionally provided with and the phase of piston chamber 2 base circle dislodger 5
The oily fuel feed hole 19 of logical high voltage control, fuel-displaced inclined hole 11 is provided with (such as Fig. 1 of outlet oil pressure feedback hole 7 communicated with piston chamber 2 top
It is shown), another plane of valve body 12 is provided with adjusts door 8, valve seat by adjusting rod 33, regulation pole socket 34, regulation spring 35, cone
The outlet pressure adjusting means that control aperture of door 30 on body, draining room 31 are constituted, the plane relative with pressure-regulating device is also set
There is drain mast 28, drain mast 28 is sequentially communicated draining intercommunicating pore 36, draining room 31 (as shown in Figure 3).
2. balance type pressure reducing valve according to claim 1, it is characterized in that：The outlet pressure regulation of another plane of valve body 12
In device, the external screw thread and the screw-internal thread fit of valve body 12 for adjusting pole socket 34 are fixed on valve body 12, adjust the interior of pole socket 34
Screw thread and the external screw thread of the middle part of adjusting rod 33 coordinate, and the handwheel of rotation adjusting lever 33 can make it along the axis rotation of regulation pole socket 34
Enter or screw out, control door pilot hole 9, draining room 31, control are also sequentially provided with the valve body 12 with adjusting the same axis of pole socket 34
Aperture of door 30 processed, control grease chamber 29, control grease chamber 29 are connected through third connecting hole 27, the second intercommunicating pore 26, the first intercommunicating pore 25 and lived
Fill in the annular dislodger 5 (as shown in Figure 2) of the bottom of room 2, control door pilot hole 9 equipped with can be in hole slidably cone tune
Section door 8, the cone regulation front end conehead 32 of door 8 is pressed in control aperture of door 30 side, and regulation spring 35 one end is placed on cone regulation door 8
The centre bore at rear portion is interior and withstands the baseplane in hole, and the other end is enclosed on outside the cylindrical bar at the medial end center of adjusting rod 33,
And the raised head face that the middle part of adjusting rod 33 connects with cylindrical bar is against, the precession of adjusting rod 33 and back-out can change regulation bullet
The compression height (as shown in Figure 2 and Figure 3) of spring 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454394.1A CN107246490A (en) | 2017-06-07 | 2017-06-07 | Balance type pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454394.1A CN107246490A (en) | 2017-06-07 | 2017-06-07 | Balance type pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107246490A true CN107246490A (en) | 2017-10-13 |
Family
ID=60018598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710454394.1A Pending CN107246490A (en) | 2017-06-07 | 2017-06-07 | Balance type pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107246490A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861456A (en) * | 2017-10-30 | 2018-03-30 | 株洲南方阀门股份有限公司 | The Multifunction pressure-reducing valve and its control method of self power generation can be stablized |
| CN109339965A (en) * | 2018-12-19 | 2019-02-15 | 重庆红江机械有限责任公司 | A kind of pressure-control valve for common rail system |
| CN109779742A (en) * | 2019-03-21 | 2019-05-21 | 东风汽车集团有限公司 | A kind of failure monitor system and method for engine charge electronics relief valve |
| CN109797745A (en) * | 2019-01-11 | 2019-05-24 | 中信重工机械股份有限公司 | A kind of hydraulic pile hammer limiting and protecting device |
| CN110529652A (en) * | 2019-09-29 | 2019-12-03 | 鞍山电磁阀有限责任公司 | A kind of electromagnetic driven shut-off valve |
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|---|---|---|---|---|
| GB622556A (en) * | 1947-03-26 | 1949-05-04 | British Oxygen Co Ltd | Improvements in or relating to pressure reducing valves |
| US4188971A (en) * | 1978-04-27 | 1980-02-19 | The United States Of America As Represented By The Secretary Of The Navy | Fluid cutout valve |
| CN1786533A (en) * | 2004-12-08 | 2006-06-14 | 刘敬善 | Stabilivolt type pressure reducer |
| CN1804447A (en) * | 2005-01-12 | 2006-07-19 | 刘敬善 | Multifunctional counterweight type balance valve |
| CN2809376Y (en) * | 2005-05-09 | 2006-08-23 | 刘敬善 | Externally regulating type seal oil pressure regulating valve |
| CN201027987Y (en) * | 2007-04-29 | 2008-02-27 | 刘敬善 | Exterior-adjusting over-flow seal oil pressure adjusting valve |
| CN101625043A (en) * | 2009-08-13 | 2010-01-13 | 凯迈（洛阳）气源有限公司 | High-pressure reducing valve |
| CN206958339U (en) * | 2017-06-07 | 2018-02-02 | 刘晓禹 | Balance type pressure reducing valve |
-
2017
- 2017-06-07 CN CN201710454394.1A patent/CN107246490A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB622556A (en) * | 1947-03-26 | 1949-05-04 | British Oxygen Co Ltd | Improvements in or relating to pressure reducing valves |
| US4188971A (en) * | 1978-04-27 | 1980-02-19 | The United States Of America As Represented By The Secretary Of The Navy | Fluid cutout valve |
| CN1786533A (en) * | 2004-12-08 | 2006-06-14 | 刘敬善 | Stabilivolt type pressure reducer |
| CN1804447A (en) * | 2005-01-12 | 2006-07-19 | 刘敬善 | Multifunctional counterweight type balance valve |
| CN2809376Y (en) * | 2005-05-09 | 2006-08-23 | 刘敬善 | Externally regulating type seal oil pressure regulating valve |
| CN201027987Y (en) * | 2007-04-29 | 2008-02-27 | 刘敬善 | Exterior-adjusting over-flow seal oil pressure adjusting valve |
| CN101625043A (en) * | 2009-08-13 | 2010-01-13 | 凯迈（洛阳）气源有限公司 | High-pressure reducing valve |
| CN206958339U (en) * | 2017-06-07 | 2018-02-02 | 刘晓禹 | Balance type pressure reducing valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861456A (en) * | 2017-10-30 | 2018-03-30 | 株洲南方阀门股份有限公司 | The Multifunction pressure-reducing valve and its control method of self power generation can be stablized |
| CN109339965A (en) * | 2018-12-19 | 2019-02-15 | 重庆红江机械有限责任公司 | A kind of pressure-control valve for common rail system |
| CN109797745A (en) * | 2019-01-11 | 2019-05-24 | 中信重工机械股份有限公司 | A kind of hydraulic pile hammer limiting and protecting device |
| CN109797745B (en) * | 2019-01-11 | 2020-09-04 | 中信重工机械股份有限公司 | Spacing protection device of hydraulic pile hammer |
| CN109779742A (en) * | 2019-03-21 | 2019-05-21 | 东风汽车集团有限公司 | A kind of failure monitor system and method for engine charge electronics relief valve |
| CN110529652A (en) * | 2019-09-29 | 2019-12-03 | 鞍山电磁阀有限责任公司 | A kind of electromagnetic driven shut-off valve |
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Application publication date: 20171013 |