CN209262342U - A kind of high-pressure unloading valve - Google Patents
A kind of high-pressure unloading valve Download PDFInfo
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- CN209262342U CN209262342U CN201821958147.1U CN201821958147U CN209262342U CN 209262342 U CN209262342 U CN 209262342U CN 201821958147 U CN201821958147 U CN 201821958147U CN 209262342 U CN209262342 U CN 209262342U
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- plunger
- valve
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Abstract
The utility model discloses a kind of high-pressure unloading valve, including cylinder cap, valve body, plunger, driving part, throat bushing and solenoid directional control valve, plunger is fixedly connected with driving part, lower end sliding up and down can be arranged in valve body by driving part in plunger, upper end portion sliding up and down can be arranged in cylinder cap by driving part, high-pressure sealing chamber is equipped between plunger lower surface and valve body, top seal chamber is equipped between plunger upper surface and cylinder cap, high-pressure sealing chamber is connected to top seal chamber by plunger, in the plunger on the outside of upper end with low pressure seal chamber is equipped between corresponding valve body, low pressure seal chamber can release formula by plunger with high-pressure sealing chamber and be connected to, low pressure seal chamber is connected to water outlet, throat bushing is set in water outlet, solenoid directional control valve is fixed on the outside of valve body, driving part is connect with solenoid directional control valve.A kind of high-pressure unloading valve of the utility model has many advantages, such as that long service life, noise are small, anti-impurity ability is strong, are applicable in muddy water.
Description
Technical field
The utility model relates to a kind of unloading valves, more particularly to a kind of high-pressure unloading valve.
Background technique
During industrial production, in order to guarantee the safety of pressure system, need to set in equipment or pressure pipeline
Unloading valve is set, the generation of safety accident is prevented, guarantees the safety of pressure system.When the pressure value in equipment or pipeline is more than to set
Unloading valve is opened when fixed pressure value, reduces the pressure in equipment or pipeline；It is set when the pressure value in equipment or pipeline is less than
When fixed pressure value, close unloading valve so that the pressure value in equipment or pipeline remain at setting pressure limit it
Interior, in especially some high-tension apparatuses or pipeline, safety accident must be provided with high-pressure unloading valve in order to prevent.
Traditional unloading valve is as shown in Figure 1, due to its architectural characteristic, and there are following deficiencies:
1, the valve port of conventional high-tension unloading valve has anti-medium granule foreign energy using the bevel-type valve port of hard contact
The low disadvantage of power.
2, high pressure water acts on seriously the erosion of valve seat, flap when valve opens and closes, and valve port is easy to be damaged,
Service life is low.
3, biggish noise, aggravating working environment can be generated since gap is narrow when valve opens and closes.
Summary of the invention
The utility model is completed to solve in the prior art insufficient, and the purpose of the utility model is to provide one
Kind of valve uses plunger-type structure to not only solve valve seat and flap problem easy to damage, while improving service life
Impurity particle ability more anti-than hard contact cone sealing valve port is stronger, and will not generate during valve closes unlatching larger
Noise.
A kind of high-pressure unloading valve of the utility model, including cylinder cap, valve body, plunger, driving part, throat bushing and electromagnetism
Reversal valve, the cylinder cap are fixed on above the valve body, and the plunger middle and upper part is fixedly connected with driving part, in the plunger
Lower end sliding up and down can be arranged in the valve body by the driving part, and the upper end portion passes through the driving portion
Part sliding up and down can be arranged in the cylinder cap, and high-pressure sealing chamber, institute are equipped between the plunger lower surface and the valve body
It states and is equipped with top seal chamber between plunger upper surface and the cylinder cap, the high-pressure sealing chamber and the top seal chamber pass through institute
State plunger connection, in the plunger on the outside of upper end be equipped with low pressure seal chamber between corresponding valve body, the low pressure seal chamber with
The high-pressure sealing chamber can release formula connection by the plunger, and the high-pressure sealing chamber is connected to high pressure water, and the valve body is set
There is water outlet, the low pressure seal chamber is connected to the water outlet, and the throat bushing is set in the water outlet, the electromagnetism
Reversal valve is fixed on the outside of the valve body, and the driving part is connect with the solenoid directional control valve.
A kind of high-pressure unloading valve of the utility model may also is that
The plunger body is from top to bottom equipped with circulation duct, leads on the outside of the circulation duct lower end equipped at least one
Water hole, the high-pressure sealing chamber are connected to the top seal chamber by the circulation duct, the low pressure seal chamber with it is described
High-pressure sealing chamber can release formula connection by the limbers.
The driving part includes cylinder barrel and piston, and the piston can upper-lower seal be sliding is arranged in the cylinder barrel
The internal piston is fixed in portion, the plunger middle and upper part.
The solenoid directional control valve includes the first reversal valve and the second reversal valve, and the cylinder cap, which is equipped with, is connected to the piston
First bleed hole, the valve body are equipped with the second bleed hole for being connected to the piston, and first reversal valve passes through described first
Bleed hole is connected to the piston, and second reversal valve is connected to by second bleed hole with the piston.
The piston lower surface is equipped with the first spring groove for accommodating spring body upper end, and the valve body upper surface, which is equipped with, to be accommodated
The second spring slot of the spring body lower end, the spring body are longitudinally disposed at first spring groove and the second spring
In slot.
The first sealing ring is equipped between the piston and the cylinder barrel, the piston can upper-lower seal by the first sealing ring
It is sliding to be arranged inside the cylinder barrel.
The second sealing ring is equipped between the cylinder cap and the cylinder barrel and the valve body.
It is arranged positioned at the plunger middle part with the first seal assembly, first seal assembly is equipped between corresponding valve body
The outside in the middle part of the plunger, the plunger middle part are offseted by first seal assembly with the corresponding valve seal.
The second seal assembly, the second seal assembly set are equipped between the upper end portion and corresponding cylinder cap
It is located on the outside of the upper end portion, the upper end portion is sealed by second seal assembly with the corresponding cylinder cap
It offsets.
Plunger seal is equipped between the plunger lower end and corresponding valve body, the plunger seal is set in
On the outside of the plunger lower end, the plunger lower end is offseted by the plunger seal with the corresponding valve seal.
A kind of high-pressure unloading valve of the utility model, including cylinder cap, valve body, plunger, driving part, throat bushing and electromagnetism
Reversal valve, the cylinder cap are fixed on above the valve body, and the plunger middle and upper part is fixedly connected with driving part, in the plunger
Lower end sliding up and down can be arranged in the valve body by the driving part, and the upper end portion passes through the driving portion
Part sliding up and down can be arranged in the cylinder cap, and high-pressure sealing chamber, institute are equipped between the plunger lower surface and the valve body
It states and is equipped with top seal chamber between plunger upper surface and the cylinder cap, the high-pressure sealing chamber and the top seal chamber pass through institute
State plunger connection, in the plunger on the outside of upper end be equipped with low pressure seal chamber between corresponding valve body, the low pressure seal chamber with
The high-pressure sealing chamber can release formula connection by the plunger, and the high-pressure sealing chamber is connected to high pressure water, and the valve body is set
There is water outlet, the low pressure seal chamber is connected to the water outlet, and the throat bushing is set in the water outlet, the electromagnetism
Reversal valve is fixed on the outside of the valve body, and the driving part is connect with the solenoid directional control valve.In this way, high-pressure sealing chamber and height
Water connection is pressed, high pressure water enters high-pressure sealing chamber and top seal chamber, when system pressure is in preset pressure value or less, electromagnetism
Reversal valve control driving part driving plunger moves down in valve body, plunger block low pressure seal chamber and high-pressure sealing chamber it
Between connection, low pressure seal chamber and high-pressure sealing chamber are in disconnected state, when system pressure is in preset pressure value or more,
Solenoid directional control valve commutation, driving part driving plunger move up in valve body, and high-pressure sealing chamber is connected to low pressure seal chamber, high
Water flow in means of press seals chamber enters low pressure seal chamber by high-pressure sealing chamber, and high pressure water is discharged by the throat bushing in water outlet,
High pressure water is flowed out by throat bushing, the influence of cavitation erosion is not only reduced in the occasion of High Pressure Difference, but also throat bushing can effectively reduce
Noise.A kind of high-pressure unloading valve of the utility model has the advantage, that valve using plunger type in terms of existing technologies
Structure solves the problems, such as that valve seat and flap are easy to damage, improves more anti-than hard contact cone sealing valve port while service life
Impurity particle ability is stronger, and valve will not generate loud noise during closing unlatching.
Detailed description of the invention
Fig. 1 is the schematic diagram of the high-pressure unloading valve of the prior art.
Fig. 2 is the high-pressure unloading valve longitudinal cross-section schematic diagram of utility model.
Fig. 3 is that the high pressure of utility model unloads middle solenoid directional control valve structural schematic diagram.
Figure number explanation
1 ... cylinder cap 2 ... valve body 3 ... plunger
4 ... driving part 5 ... throat bushing 6 ... solenoid directional control valves
7 ... high-pressure sealing chamber 8 ... top seal chamber 9 ... low pressure seal chambers
10 ... water outlet 11 ... plunger seal 12 ... circulation ducts
13 ... limbers 14 ... bolt 15 ... nuts
16 ... gasket 17 ... cylinder barrel 18 ... pistons
19 ... first the first bleed holes of the second reversal valve of reversal valve 20 ... 21 ...
22 ... second bleed hole 23 ... ventilation pipe 24 ... spring bodies
25 ... first the first sealing rings of spring groove 26 ... second spring slot 27 ...
28 ... second the first axle sealing rings of the first seal assembly of sealing ring 29 ... 30 ...
31 ... first the second seal assemblies of the second axle sealing ring of guide ring 32 ... 33 ...
34 ... the 4th axle sealing rings of the second guide ring of third axle sealing ring 35 ... 36 ...
37 ... mounting plates
Specific embodiment
A kind of high-pressure unloading valve of Fig. 2 and 3 pair of the utility model with reference to the accompanying drawing is further described.
A kind of high-pressure unloading valve of the utility model, please refers to shown in Fig. 2 and Fig. 3, including cylinder cap 1, valve body 2, plunger 3,
Driving part 4, throat bushing 5 and solenoid directional control valve 6, the cylinder cap 1 are fixed on 2 top of valve body, 3 middle and upper part of plunger
It is fixedly connected with driving part 4, lower end sliding up and down can be arranged in the valve by the driving part 4 in the plunger 3
In body 2,3 upper end of plunger sliding up and down can be arranged in the cylinder cap 1 by the driving part 4, the plunger
It is equipped with high-pressure sealing chamber 7 between 3 lower surfaces and the valve body 2, top is equipped between 3 upper surface of plunger and the cylinder cap 1
Portion's seal chamber 8, the high-pressure sealing chamber 7 is connected to the top seal chamber 8 by the plunger 3, in the plunger 3 outside upper end
Low pressure seal chamber 9 is equipped between side and corresponding valve body 2, the low pressure seal chamber 9 passes through the column with the high-pressure sealing chamber 7
Plug 3 can release formula connection, and the high-pressure sealing chamber 7 is connected to high pressure water, and the valve body 2 is equipped with water outlet 10, and the low pressure is close
Envelope chamber 9 is connected to the water outlet 10, and the throat bushing 5 is set in the water outlet 10, and the solenoid directional control valve 6 is fixed
In 2 outside of valve body, the driving part 4 is connect with the solenoid directional control valve 6.Specifically, high-pressure sealing chamber 7 and high pressure
Water connection, high pressure water enters high-pressure sealing chamber 7 and top seal chamber 8, when system pressure is in preset pressure value or less, electromagnetism
Reversal valve 6 controls driving part 4 and plunger 3 is driven to move down in valve body 2, and plunger 3 blocks low pressure seal chamber 9 and high pressure
Connection between seal chamber 7, low pressure seal chamber 9 and high-pressure sealing chamber 7 are in disconnected state, when system pressure is in default
When more than pressure value, solenoid directional control valve 6 commutates, and driving part 4 drives plunger 3 to move up in valve body 2, high-pressure sealing chamber 7
It is connected to low pressure seal chamber 9, the water flow in high-pressure sealing chamber 7 enters low pressure seal chamber 9 by high-pressure sealing chamber 7, and high pressure water is logical
The throat bushing 5 crossed in water outlet 10 is discharged, and high pressure water is flowed out by throat bushing 5, not only reduces cavitation erosion in the occasion of High Pressure Difference
It influences, and throat bushing 5 can effectively reduce noise.It can be set the first hickey in water outlet 10, throat bushing 5 passes through the
One hickey is set in water outlet 10.Compared with the existing technology the advantages of is: valve uses plunger-type structure, solves valve
Seat and flap problem easy to damage, impurity particle ability more anti-than hard contact cone sealing valve port is more while improving service life
By force, valve will not generate loud noise during closing unlatching.It is also possible that cylinder cap 1 by bolt 14 and nut 15 and
Gasket 16 is detachably secured to 2 upside of valve body.It is also possible that high-pressure sealing chamber 7 is connected to by water inlet with high pressure water.
A kind of high-pressure unloading valve of the utility model, please refers to the technical solution described in front shown in Fig. 2 and Fig. 3
On the basis of it may also is that be from top to bottom equipped with circulation duct 12 inside the plunger 3, set on the outside of 12 lower end of circulation duct
There is at least one limbers 13, the high-pressure sealing chamber 7 is connected to the top seal chamber 8 by the circulation duct, described
Low pressure seal chamber 9 can release formula by the limbers 13 with the high-pressure sealing chamber 7 and be connected to.In this way, high pressure water enters high pressure
In seal chamber 7, top seal chamber 8, when system pressure is in preset pressure value or more, electromagnetism are entered by circulation duct 12
Reversal valve 6 commutates, and driving part 4 drives plunger 3 to move up in valve body 2, and high-pressure sealing chamber 7 and low pressure seal chamber 9 pass through
Limbers 13 is connected to, and high pressure water enters low pressure seal chamber 9 by limbers 13, then is discharged by the throat bushing 5 in water outlet 10,
12 lower surface of circulation duct can also be arranged in limbers 13 at equal intervals, further realize shunting decrease of noise functions.Limbers 13 can
To be strip hole.
A kind of high-pressure unloading valve of the utility model, please refers to the technical solution described in front shown in Fig. 2 and Fig. 3
On the basis of it may also is that the driving part 4 includes cylinder barrel 17 and piston 18, the piston 18 can the sliding setting of upper-lower seal
Inside the cylinder barrel 17,3 middle and upper part of plunger is fixed on inside the piston 18.In this way, driving part 4 is 17 He of cylinder barrel
Piston 18, piston 18 can upper-lower seal it is sliding be arranged inside cylinder barrel 17, when system pressure is in preset pressure value or less,
Solenoid directional control valve 6 controls piston 18 and plunger 3 is driven to move down in valve body 2, and plunger 3 blocks low pressure seal chamber 9 and high pressure
The connected state of seal chamber 7, when system pressure is in preset pressure value or more, solenoid directional control valve 6 commutates, and piston 18 drives column
Plug 3 moves up in valve body 2, and high-pressure sealing chamber 7 is connected to low pressure seal chamber 9, and water flow is entered low by high-pressure sealing chamber 7
Means of press seals chamber 9 is discharged by the throat bushing 5 in water outlet 10.It can also be that piston 18 and 17 clearance fit of cylinder barrel are arranged.May be used also
Be with technical solution further preferred on the basis of the technical solution that describes in front: the solenoid directional control valve 6 includes first
Reversal valve 19 and the second reversal valve 20, the cylinder cap 1 are equipped with the first bleed hole 21 for being connected to the piston 18, the valve body 2
It is equipped with the second bleed hole 22 for being connected to the piston 18, first reversal valve 19 passes through first bleed hole 21 and institute
The connection of piston 18 is stated, second reversal valve 20 is connected to by second bleed hole 22 with the piston 18.In this way, working as system
When pressure is in preset pressure value or less, the first reversal valve 19 controls 21 air inlet of the first bleed hole, and piston 18 controls plunger 3 and exists
It is moved down in valve body 2, plunger 3 blocks the connected state of low pressure seal chamber 9 Yu high-pressure sealing chamber 7, when system pressure is in
When more than preset pressure value, solenoid directional control valve 6 commutation be the second reversal valve 20, the second reversal valve 20 control the second bleed hole 22 into
Gas, piston 18 drive plunger 3 to move up in valve body 2, and high-pressure sealing chamber 7 is connected to low pressure seal chamber 9, and high pressure water enters low
Means of press seals chamber 9 is discharged by the throat bushing 5 in water outlet 10.It can also be the first reversal valve 19 and the second reversal valve 20 difference
Pass through 22 detachable connection of corresponding ventilation pipe 23 and the first bleed hole 21 and the second bleed hole.It can also be the first bleed
Hole 21 and the second bleed hole 22 are respectively equipped with the second hickey, and the first reversal valve 19 and the second reversal valve 20 pass through correspondence respectively
The second hickey be threadedly coupled with the first bleed hole 21 and the second bleed hole 22.It can be changed with the first scavenging air valve 19 and second
Air valve 20 is fixed by mounting plate 37.It may also is that 18 following table of piston on the basis of the technical solution described in front
Face is equipped with the first spring groove 25 for accommodating 24 upper end of spring body, and 2 upper surface of valve body, which is equipped with, to be accommodated under the spring body 24
The second spring slot 26 of end, the spring body 24 are longitudinally disposed at first spring groove 25 and the second spring slot 26
It is interior.In this way, being provided with spring body in the second spring slot 26 of 2 upside of the first spring groove 25 and valve body of 18 lower surface of piston
24, after solenoid directional control valve 6 stops working, piston 18 is resetted by spring body 24, and spring body 24 plays safe guarantor
Protective function, when solenoid directional control valve 6 damages cisco unity malfunction, spring force makes system be constantly in opening state, is unlikely to
Pipeline or equipment are caused danger because of high pressure.
It is above-mentioned that only several specific embodiments in the utility model are illustrated, but can not be as the utility model
Protection scope, equivalent change or modification or equal proportion amplification or contracting made by all design spirits according in the utility model
It is small etc., it is deemed to fall the protection scope of the utility model.
Claims (10)
1. a kind of high-pressure unloading valve, it is characterised in that: changed including cylinder cap, valve body, plunger, driving part, throat bushing and electromagnetism
To valve, the cylinder cap is fixed on above the valve body, and the plunger middle and upper part is fixedly connected with driving part, in the plunger under
End sliding up and down can be arranged in the valve body by the driving part, and the upper end portion passes through the driving part
It sliding up and down can be arranged in the cylinder cap, high-pressure sealing chamber is equipped between the plunger lower surface and the valve body, it is described
Top seal chamber, the high-pressure sealing chamber and the top seal chamber are equipped between plunger upper surface and the cylinder cap described in
Plunger connection, in the plunger on the outside of upper end with low pressure seal chamber, the low pressure seal chamber and institute are equipped between corresponding valve body
Formula connection can be released by the plunger by stating high-pressure sealing chamber, and the high-pressure sealing chamber is connected to high pressure water, and the valve body is equipped with
Water outlet, the low pressure seal chamber are connected to the water outlet, and the throat bushing is set in the water outlet, and the electromagnetism changes
It is fixed on the outside of the valve body to valve, the driving part is connect with the solenoid directional control valve.
2. a kind of high-pressure unloading valve according to claim 1, it is characterised in that: the plunger body is from top to bottom equipped with stream
It threads a pipe, at least one limbers is equipped on the outside of the circulation duct lower end, the high-pressure sealing chamber and the top seal
Chamber is connected to by the circulation duct, and the low pressure seal chamber and the high-pressure sealing chamber can release formula by the limbers and connect
It is logical.
3. a kind of high-pressure unloading valve according to claim 1, it is characterised in that: the driving part includes cylinder barrel and work
Plug, the piston can upper-lower seal it is sliding be arranged inside the cylinder barrel, the plunger middle and upper part is fixed in the piston
Portion.
4. a kind of high-pressure unloading valve according to claim 3, it is characterised in that: the solenoid directional control valve includes the first commutation
Valve and the second reversal valve, the cylinder cap are equipped with the first bleed hole for being connected to the piston, and the valve body is equipped with described in connection
Second bleed hole of piston, first reversal valve are connected to by first bleed hole with the piston, second commutation
Valve is connected to by second bleed hole with the piston.
5. a kind of high-pressure unloading valve according to claim 3, it is characterised in that: the piston lower surface, which is equipped with, accommodates spring
First spring groove of body upper end, the valve body upper surface is equipped with the second spring slot for accommodating the spring body lower end, described
Spring body is longitudinally disposed in first spring groove and the second spring slot.
6. according to a kind of high-pressure unloading valve described in claim 3 to 5 any one claim, it is characterised in that: the work
Plug the cylinder barrel between be equipped with the first sealing ring, the piston by the first sealing ring can upper-lower seal it is sliding be arranged in institute
It states inside cylinder barrel.
7. according to a kind of high-pressure unloading valve described in claim 3 to 5 any one claim, it is characterised in that: the cylinder
The second sealing ring is equipped between lid and the cylinder barrel and the valve body.
8. according to claim 1 to a kind of high-pressure unloading valve described in 5 any one claims, it is characterised in that: be located at institute
It states plunger middle part and is set in the middle part of the plunger with the first seal assembly, first seal assembly is equipped between corresponding valve body
Outside, the plunger middle part are offseted by first seal assembly with the corresponding valve seal.
9. according to claim 1 to a kind of high-pressure unloading valve described in 5 any one claims, it is characterised in that: be located at institute
It states and is equipped with the second seal assembly between upper end portion and corresponding cylinder cap, second seal assembly is set on the plunger
On the outside of end, the upper end portion is offseted by second seal assembly with the corresponding cylinder cap sealing.
10. according to claim 1 to a kind of high-pressure unloading valve described in 5 any one claims, it is characterised in that: be located at institute
It states and is equipped with plunger seal between plunger lower end and corresponding valve body, the plunger seal is set in the plunger lower end
Outside, the plunger lower end are offseted by the plunger seal with the corresponding valve seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958147.1U CN209262342U (en) | 2018-11-27 | 2018-11-27 | A kind of high-pressure unloading valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958147.1U CN209262342U (en) | 2018-11-27 | 2018-11-27 | A kind of high-pressure unloading valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262342U true CN209262342U (en) | 2019-08-16 |
Family
ID=67564114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821958147.1U Active CN209262342U (en) | 2018-11-27 | 2018-11-27 | A kind of high-pressure unloading valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262342U (en) |
-
2018
- 2018-11-27 CN CN201821958147.1U patent/CN209262342U/en active Active
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