CN207584131U - A kind of double rank pressure reduction structures with pressure reducing valve - Google Patents
A kind of double rank pressure reduction structures with pressure reducing valve Download PDFInfo
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- CN207584131U CN207584131U CN201721292571.2U CN201721292571U CN207584131U CN 207584131 U CN207584131 U CN 207584131U CN 201721292571 U CN201721292571 U CN 201721292571U CN 207584131 U CN207584131 U CN 207584131U
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- valve
- pipeline
- pressure reducing
- pressure reduction
- reduction structures
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Abstract
The utility model provides a kind of double rank pressure reduction structures with pressure reducing valve, including main valve, flow controller, solenoid valve, two ball valves and two decompression pilot valves；The pipeline of one end of the main valve is equipped with flow controller, and is divided into two laterals by the pipeline after flow controller, and first pipeline is sequentially connected in series a decompression pilot valve, solenoid valve and a ball valve, and with the other end unicom of the main valve；Second pipeline is sequentially connected in series another a decompression pilot valve and ball valve, and with the other end unicom of the main valve.Double rank pressure reduction structures described in the utility model with pressure reducing valve automatically switch into smaller outlet pressure when water demand is smaller, and reasonable distribution pressure of supply water reduces water consumption；Its pipeline reduces pipeline leakage (when especially pipeline is longer), extends the service life of pipeline and equipment without bearing elevated pressures for a long time.
Description
Technical field
The utility model belongs to machinery field, more particularly, to a kind of double rank pressure reduction structures with pressure reducing valve.
Background technology
Pressure reducing valve is by adjusting, inlet pressure being reduced to the outlet pressure of a certain needs, and the energy by medium in itself
Amount, makes outlet pressure automatically keep stable valve.From the viewpoint of hydrodynamics, pressure reducing valve is that a local resistance can become
The restricting element of change that is, by changing orifice size, changes the kinetic energy of flow velocity and fluid, causes the different pressure losses, from
And achieve the purpose that decompression.Then by control and the adjusting of regulating system, the fluctuation and spring force for making downstream pressure balance each other,
Downstream pressure is made to be kept constant in certain error range.In certain Decompression Controlling circuits, the outlet pressure of pressure reducing valve is
For controlling the control oil liquid pressure size of electro-hydraulic reversing valve or external control sequence valve etc., when electro-hydraulic reversing valve or external control sequence valve
After commutation or work, pressure reducing valve oil outlet flow becomes zero, but pressure also needs to keep the pressure originally set up.In this case,
Because valve outlet flow is zero, the flow for flowing through pressure-reduction outlet only has pilot flow.Since pilot flow is seldom, generally 2L/min it
It is interior, therefore main valve pressure-reduction outlet, substantially near closed positions (aperture is minimum), pilot flow is flowed out by triangular groove or scalene cone,
If main valve plug coordinated, pine or abrasion were excessive, and leakage rate increases.By Flow continuity theorem, this partial compromise amount is also necessary
Come from main valve plug damping hole stream, that is, the flow for flowing through damping hole is made of pilot flow and leakage rate two parts, and damps hole face
Product and main spool spring chamber oil liquid pressure are unchanged (spring cavity oil liquid pressure is determined by the pressure spring pre compressed magnitude mixed up), to make
Increased by the flow of damping hole, necessarily cause the raising of main valve cavity of resorption oil liquid pressure.Since it is desired that pressure reducing valve assists main valve
Carry out the work of dynamic voltage adjustment.
Utility model content
In view of this, the utility model is directed to a kind of double rank pressure reduction structures with pressure reducing valve, to solve dynamic voltage adjustment
The problem of.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of double rank pressure reduction structures with pressure reducing valve, including main valve, flow controller, solenoid valve, two ball valves and two decompressions
Pilot valve；
The pipeline of one end of the main valve is equipped with flow controller, and is divided into Liang Ge branches by the pipeline after flow controller
Pipeline, first pipeline are sequentially connected in series the decompression pilot valve, solenoid valve and a ball valve, and with the main valve
Other end unicom；Second pipeline is sequentially connected in series another a decompression pilot valve and ball valve, and with the main valve
Other end unicom；
Wherein described decompression pilot valve includes valve deck, valve rod, valve body and flap；The valve deck up/down perforation, adjusting screw
Lower end is connected with locking nut, and the opening of the valve deck is inserted into the bottom end of the adjusting screw；The inside cavity of the valve deck
Equipped with spring, spring bearer plate is supported in the upper end of the spring, and the bottom end of the adjusting screw is supported with the spring bearer plate；It is described
Valve deck is connect with valve body by fastener, tapped on the valve rod, sequentially passes through diaphragm and diaphragm pressing plate, and the upper end is fixed
There is nut, and be inserted into spring from bottom, diaphragm pressing plate has been supported in the lower end of the spring, and the diaphragm pressing plate lower end is supported
Diaphragm, the diaphragm are clipped between the valve deck and valve body；Flap plug is blocked under the valve body and is brought out in plug screw
Mouthful.
Pipeline across the flow controller is set there are one branch, which is equipped with needle-valve, the needle-valve and the main valve
Upper end unicom.
The decompression pilot valve is matched with clamp bracket, and the clamp bracket includes cross bar, and the both ends of the cross bar are distinguished
Equipped with vertical pole, the stent of Y types is respectively equipped on each vertical pole；Through-hole is respectively equipped on the vertical pole, the through-hole is supported with folder
Tight bolt.
Fishbolt is equipped with cushion pad on the clamp bracket.
The material of the cushion pad is rubber.
The thickness of the cushion pad is 2mm to 3mm.
Double rank pressure reduction structures with pressure reducing valve further include filter, and the filter and the main valve unicom.
It is covered outside the adjusting screw by sheath.
Butterfly spring is equipped between the nut and the diaphragm pressing plate.
Sealing ring is equipped between the flap and the plug screw.
Relative to the prior art, double rank pressure reduction structures described in the utility model with pressure reducing valve have the advantage that：
Double rank pressure reduction structures described in the utility model with pressure reducing valve automatically switch into smaller when water demand is smaller
Outlet pressure, reasonable distribution pressure of supply water, reduce water consumption；Its pipeline reduces pipeline without bearing elevated pressures for a long time
Leakage extends the service life of pipeline and equipment (when especially pipeline is longer).Wherein relief valve body valve deck is stainless steel
Hot investment casting, material is uniform, and appearance wherein diaphragm thickness only has 0.5mm, and reaction is very sensitive, while has enough intensity again；
Valve body valve deck is precision stainless steel casting and forming；Flap is workpiece vulcanization rubber, makes it have very high fatigue life.
Description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type do not form the improper restriction to the utility model for explaining the utility model.
In attached drawing：
Fig. 1 is the structure diagram of double rank pressure reduction structures with pressure reducing valve described in the utility model embodiment；
Fig. 2 is the structure diagram of the pressure reducing valve described in the utility model embodiment.
1- sheaths；2- adjusting screws；3- locking nuts；4- spring bearer plates；5- valve decks；6- springs；7- nuts；8- butterfly bullets
Spring；9- diaphragm pressing plates；10- fasteners；11- diaphragms；12- valve rods；13- valve bodies；14- flaps；15- sealing rings；16- plug screws；17-
Main valve；18- flow controllers；19- needle-valves；20- solenoid valves；21- depressurizes pilot valve；22- filters；23- ball valves.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the utility model can
To be combined with each other.
As shown in Figure 1, a kind of double rank pressure reduction structures with pressure reducing valve, including main valve 17, flow controller 18, solenoid valve 20, two
A ball valve 23 and two decompression pilot valves 21；
The pipeline of one end of the main valve 17 is equipped with flow controller 18, and is divided into two by the pipeline after flow controller 18
A lateral, first pipeline are sequentially connected in series a decompression pilot valve 21, solenoid valve 20 and a ball valve 23, and
With the other end unicom of the main valve 17；Second pipeline is sequentially connected in series another decompression pilot valve 21 and a ball valve
23, and with the other end unicom of the main valve 17；
Wherein described decompression pilot valve 21 includes valve deck 5, valve rod 12, valve body 13 and flap 14；The valve deck passes through about 5
Logical, 2 lower end of adjusting screw is connected with locking nut 3, and the opening of the valve deck 5 is inserted into the bottom end of the adjusting screw 2；It is described
The inside cavity of valve deck 5 is equipped with spring 6, and spring bearer plate 4, the bottom end of the adjusting screw 2 and institute are supported in the upper end of the spring 6
Spring bearer plate 4 is stated to support；The valve deck 5 is connect with valve body 13 by fastener 10, tapped on the valve rod 12, is worn successively
Diaphragm 11 and diaphragm pressing plate 9 are crossed, the upper end is fixed with nut 7, and is inserted into spring 6 from bottom, and the lower end of the spring 6 is supported
There is a diaphragm pressing plate 9 on top, and diaphragm 11 is supported in 9 lower end of diaphragm pressing plate, the diaphragm 11 be clipped in the valve deck 5 and valve body 13 it
Between；Flap 14 is filled in plug screw 16, and blocks the lower end outlet of the valve body 13.
Pipeline across the flow controller 18 is set there are one branch, which is equipped with needle-valve 19, the needle-valve 19 and institute
State the upper end unicom of main valve 17.
The decompression pilot valve 21 is matched with clamp bracket, and the clamp bracket includes cross bar, the both ends point of the cross bar
Not She You vertical pole, the stents of Y types is respectively equipped on each vertical pole；Through-hole is respectively equipped on the vertical pole, the through-hole is supported with
Fishbolt.
Fishbolt is equipped with cushion pad on the clamp bracket.
The material of the cushion pad is rubber.
The thickness of the cushion pad is 2mm to 3mm.
Double rank pressure reduction structures with pressure reducing valve further include filter 6, and the filter 6 and 17 unicom of main valve.
It is covered outside the adjusting screw 2 by sheath 1.
Butterfly spring 8 is equipped between the nut 7 and the diaphragm pressing plate 9.
Sealing ring 15 is equipped between the flap 14 and the plug screw 16.
There are two decompression pilot valve 21, configured in parallel on pipeline.One of them is high pressure relief pilot valve, and setting is relatively higher by
Mouth pressure；Another depressurizes pilot valve for low pressure, sets relatively low outlet pressure；Low pressure decompression pilot valve one normally closed electromagnetism of series connection
Valve 20；Solenoid valve 20 can be controlled by sensor or timer；
When pipeline flow demand reduces, low pressure decompression pilot valve works；Make 17 outlet pressure of main valve relatively low；
When pipeline flow demand increases, solenoid valve 20 is opened, and high pressure relief pilot valve works；Make 17 outlet pressure of main valve
Raising.The setting value of high pressure relief pilot valve necessarily is greater than pressure decompression pilot valve, can be respectively by rotating the adjusting spiral shell of upper end
Nail is adjusted.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of double rank pressure reduction structures with pressure reducing valve, it is characterised in that：Including main valve (17), flow controller (18), solenoid valve
(20), two ball valves (23) and two decompression pilot valves (21)；
The pipeline of one end of the main valve (17) is equipped with flow controller (18), and is divided by the pipeline after flow controller (18)
Two laterals, first pipeline are sequentially connected in series a decompression pilot valve (21), solenoid valve (20) and a ball valve
(23), and with the other end unicom of the main valve (17)；Second pipeline is sequentially connected in series another decompression pilot valve
(21) and a ball valve (23), and with the other end unicom of the main valve (17)；
Wherein described decompression pilot valve (21) includes valve deck (5), valve rod (12), valve body (13) and flap (14)；The valve deck (5)
Up/down perforation, adjusting screw (2) lower end is connected with locking nut (3), and the valve deck is inserted into the bottom end of the adjusting screw (2)
(5) opening；The inside cavity of the valve deck (5) is equipped with spring (6), and spring bearer plate (4) is supported in the upper end of the spring (6),
It is supported with the spring bearer plate (4) bottom end of the adjusting screw (2)；The valve deck (5) passes through fastener with valve body (13)
(10) it connects, it is tapped on the valve rod (12), diaphragm (11) and diaphragm pressing plate (9) are sequentially passed through, the upper end is fixed with spiral shell
Female (7), and be inserted into spring (6) from bottom, diaphragm pressing plate (9), the diaphragm pressing plate have been supported in the lower end of the spring (6)
(9) diaphragm (11) is supported in lower end, and the diaphragm (11) is clipped between the valve deck (5) and valve body (13)；Flap (14) is filled in spiral shell
It fills in (16), and blocks the lower end outlet of the valve body (13).
2. double rank pressure reduction structures according to claim 1 with pressure reducing valve, it is characterised in that：Across the flow controller (18)
Pipeline set there are one branch, which is equipped with needle-valve (19), the needle-valve (19) and the upper end unicom of the main valve (17).
3. double rank pressure reduction structures according to claim 1 with pressure reducing valve, it is characterised in that：The decompression pilot valve (21)
Clamp bracket is matched with, the clamp bracket includes cross bar, and the both ends of the cross bar are respectively equipped with vertical pole, distinguish on each vertical pole
Stent equipped with Y types；Through-hole is respectively equipped on the vertical pole, the through-hole is supported with fishbolt.
4. double rank pressure reduction structures according to claim 3 with pressure reducing valve, it is characterised in that：It is clamped on the clamp bracket
Bolt is equipped with cushion pad.
5. double rank pressure reduction structures according to claim 4 with pressure reducing valve, it is characterised in that：The material of the cushion pad is
Rubber.
6. double rank pressure reduction structures according to claim 4 with pressure reducing valve, it is characterised in that：The thickness of the cushion pad is
2mm to 3mm.
7. double rank pressure reduction structures according to claim 1 with pressure reducing valve, it is characterised in that：Filter (22) is further included,
And the filter (22) and the main valve (17) unicom.
8. double rank pressure reduction structures according to claim 1 with pressure reducing valve, it is characterised in that：The adjusting screw (2) is outside
Portion is covered by sheath (1).
9. double rank pressure reduction structures according to claim 1 with pressure reducing valve, it is characterised in that：The nut (7) with it is described
Butterfly spring (8) is equipped between diaphragm pressing plate (9).
10. double rank pressure reduction structures according to claim 1 with pressure reducing valve, it is characterised in that：The flap (14) and institute
It states and sealing ring (15) is equipped between plug screw (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292571.2U CN207584131U (en) | 2017-10-09 | 2017-10-09 | A kind of double rank pressure reduction structures with pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292571.2U CN207584131U (en) | 2017-10-09 | 2017-10-09 | A kind of double rank pressure reduction structures with pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207584131U true CN207584131U (en) | 2018-07-06 |
Family
ID=62728733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721292571.2U Active CN207584131U (en) | 2017-10-09 | 2017-10-09 | A kind of double rank pressure reduction structures with pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207584131U (en) |
-
2017
- 2017-10-09 CN CN201721292571.2U patent/CN207584131U/en active Active
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