CN206802418U - Relief valve assembly and electric heater - Google Patents
Relief valve assembly and electric heater Download PDFInfo
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- CN206802418U CN206802418U CN201720369624.XU CN201720369624U CN206802418U CN 206802418 U CN206802418 U CN 206802418U CN 201720369624 U CN201720369624 U CN 201720369624U CN 206802418 U CN206802418 U CN 206802418U
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Abstract
This application provides relief valve assembly and electric heater.Relief valve assembly includes safety valve and Fluid pressure automatic regulating system, and Fluid pressure automatic regulating system is arranged on the arrival end of safety valve.Wherein when the Fluid pressure for flowing into safety valve is less than or equal to the first setup pressure value, Fluid pressure automatic regulating system does not work；When the Fluid pressure for flowing into safety valve is more than the first setup pressure value, the work of Fluid pressure automatic regulating system, the pressure in the valve body of safety valve is set to be maintained at preset value.The utility model may be used on household appliance technical field, relief valve assembly Opening pressure when the fluid pressure of inflow is smaller is unchanged, can be according to the Fluid pressure adjust automatically Opening pressure of entrance when the fluid pressure of inflow is larger, the pressure in valve body is set to be no more than the vent pressure of safety valve, so that relief valve assembly being capable of normal work when Fluid pressure is higher and relatively low, and Opening pressure is without manual adjustment so that relief valve assembly is easy to use, safe.
Description
Technical field
Household appliance technical field is the utility model is related to, in particular it relates to a kind of relief valve assembly and including the safe valve group
The electric heater of part.
Background technology
Safety valve is arranged on electric water heater inlet mouth end at present, and energy is automatic when the internal pressure of electric heater exceedes limit value
Discharge part water, electrical water heater internal pressure is reduced, prevents electric heater from damaging；Internally pressure exceedes water supply pipe influent pressure
Power, but when being also not up to vent pressure, in the valve body of electric heater in water it is reflowable in water supply pipe.
A kind of safety valve be present, its water inlet end carries manual adjustment Opening pressure structure, reduces to reach in electric heater
Portion's pressure purpose.But Opening pressure must be adjusted in place in advance, Opening pressure is fixed value after adjustment, it is impossible to influent pressure
Power changes and changed；If Opening pressure is bigger than normal, water inlet can be highly difficult, and user can not normal use electric heater；If open
Pressure is less than normal, and hydraulic pressure still is possible to the vent pressure more than safety valve, is constantly in safety valve and drips or flowing water state, makes
Misread into user, think that safety valve damages.In addition, the adjustable range of Opening pressure is limited, in the very high areal pressure drop of hydraulic pressure
Do not get off, cause inconvenient for use.
Utility model content
In order to solve the above-mentioned technical problem, the utility model, which provides one kind, need not manually adjust Opening pressure, and enter
When water pressure is low Opening pressure it is unchanged, when intake pressure is high according to intake pressure adjust automatically to keep the hydraulic pressure in valve body
Constant relief valve assembly.
In order to reach the purpose of this utility model, the technical scheme that the utility model is taken is as follows：
Embodiment of the present utility model provides a kind of relief valve assembly, including：
Safety valve；With
Fluid pressure automatic regulating system, the Fluid pressure automatic regulating system are arranged on the entrance of the safety valve
End；
Wherein, when the Fluid pressure for flowing into the safety valve is less than or equal to the first setup pressure value, the fluid pressure
Power automatic regulating system does not work；It is described when the Fluid pressure for flowing into the safety valve is more than first setup pressure value
Fluid pressure automatic regulating system works, and the pressure in the valve body of the safety valve is maintained at preset value.
In the present embodiment, the arrival end of safety valve is provided with Fluid pressure automatic regulating system, and Fluid pressure, which automatically adjusts, is
System can be selectively adjusted the Opening pressure of safety valve according to the size for the Fluid pressure for flowing into safety valve.Specifically, in fluid
When pressure is less than or equal to the first setup pressure value, Fluid pressure automatic regulating system, which does not work, to be depressurized, relief valve assembly
Opening pressure be its safety valve Opening pressure；When Fluid pressure is more than the first setup pressure value, Fluid pressure is automatic
Regulating system, which is started working, to be depressurized, and the pressure in the valve body of safety valve is maintained at preset value, the preset value does not surpass
The vent pressure of safety valve is crossed, enables safety valve normal work.
The relief valve assembly of the present embodiment, pressure is opened when the fluid pressure of inflow is less than or equal to the first setup pressure value
Power is unchanged, is opened and pressed according to the Fluid pressure adjust automatically of inflow when the fluid pressure of inflow is more than the first setup pressure value
Power, the pressure in the valve body of safety valve is set to be no more than the vent pressure of safety valve, so that relief valve assembly is in Fluid pressure
When higher and relatively low can normal work, and Opening pressure is without manual adjustment so that relief valve assembly it is easy to use,
Safety.
Alternatively, the Fluid pressure automatic regulating system includes：
Pressure-regulating valve body, it has the valve pocket connected with the entrance of the safety valve, and has valve in the valve pocket
Inner chamber, the first end of the valve cavity and the valve pocket fluid isolation；
Movable valve, it is sealingly disposed in the second end of the valve cavity, and can be moved in the valve cavity；
With
Flexible member, the flexible member provide elastic force to the movable valve.
In the present embodiment, the first end of valve cavity and valve pocket fluid isolation, to prevent the fluid in valve pocket from first
End is into valve cavity and acts on movable valve, and then the pressure of the fluid with acting on movable valve at the second end offsets
Disappear, movable valve can not be played adjustment effect.
Due to movable valve only at the second end by the pressure of fluid, while also by the elastic force of flexible member, this
When Fluid pressure is less than or equal to the first setup pressure value, the Fluid pressure being subject on movable valve offsets sample with elastic force
Disappear, now Fluid pressure automatic regulating system is adjusted without pressure；When Fluid pressure is more than the first setup pressure value, activity
The Fluid pressure being subject on valve is more than elastic force, makes movable valve force unbalance, now unbalanced on movable valve
Power can be transferred to safety valve, the Opening pressure of safety valve is correspondingly raised, so that the pressure in the valve body of safety valve is kept
In preset value.
Alternatively, the movable valve is connected and the movable valve with the entrance valve block of the arrival end of the safety valve
In the presence of not working stroke, during so that Fluid pressure being less than or equal to first setup pressure value, the movable valve is in fluid
And moved in the presence of the flexible member but do not apply force to the entrance valve block；It is more than the described first setting in Fluid pressure
During pressure value, the movable valve moves in the presence of fluid and the flexible member and applies force to the entrance valve block.
In the present embodiment, when Fluid pressure is less than or equal to the first setup pressure value, movable valve is under the pressure of fluid
Motion, the movable valve stretching of motion or extruding flexible member make its deformation, and the flexible member of deformation applies bullet to movable valve
Property power, when the elastic force and fluid pressure balance on movable valve, movable valve stop movement, in the process, moving valve
Although door motion, Opening pressure is not adjusted, therefore the motion is not do to entrance valve block applying power in motion process
Work(stroke.
When Fluid pressure is more than the first setup pressure value, movable valve move to elastic force after extreme position thereon with
Fluid pressure is still not up to balanced, and Fluid pressure is applied still greater than elastic force, now movable valve to connected entrance valve block
Reinforcing, increases the Opening pressure of safety valve, and then causes the Opening pressure increase of whole relief valve assembly.
The Fluid pressure and the difference of elastic force that the size for the power being subject on entrance valve block is subject to equal to movable valve, due to
The extreme position of movable valve motion is constant, therefore elastic force is also constant, and the power being subject on such entrance valve block is with fluid pressure
The increase of power and synchronously increase, the Opening pressure of safety valve synchronously increases also with the increase of Fluid pressure, so cause peace
Pressure can be maintained at preset value in the valve body of full valve.
Alternatively, one in the entrance valve block and the movable valve is provided with link slot, another company of being provided with
Fitting, and the direction of motion of the link slot along the movable valve has the length corresponding with the not working stroke, institute
Connector is stated to be connected and can move in the link slot with the link slot.
In the present embodiment, link slot has the length corresponding with the not working stroke of movable valve.Movable valve is flowing
When body pressure acts on lower motion, it can be moved with follower link in link slot, and compression elastic element, moved in connector with connecting
Before the cell wall contact of access slot, if the elastic force and fluid pressure balance that are subject on movable valve, movable valve stops movement, and
And movable valve is not to entrance valve block applying power；Otherwise movable valve band follower link continues to move to, until connector is with being connected
The cell wall contact of groove, cell wall prevent connector and movable valve from continuing to move to, and now movable valve moves to extreme position, activity
The elastic force and the difference of Fluid pressure being subject on valve are transferred to entrance valve block by the cooperation of connector and link slot, make peace
The Opening pressure increase of full valve.
Alternatively, the entrance valve block is connected with the movable valve by connector, and the connector is that length can
The Coupling or multiple sub- connecting members that the folded piece of change, multiple sub- connecting members are mutually socketed to form be hinged successively form it is be hinged
Part, or the connector are flexible member.
In the present embodiment, connector can be folded piece, Coupling, articulated elements or flexible member, wherein, folded piece can be rolled over
Folded or expansion, to change its length, and then change the distance between entrance valve block and movable valve；The sub- connecting member of Coupling can
Stretch out or retract each other, the sub- connecting member of articulated elements can relatively rotate, to change the distance between Coupling, articulated elements both ends
(i.e. the distance between entrance valve block and movable valve)；Flexible member (such as restricting) can be at relaxation or tensioning state, to change
The distance between entrance valve block and movable valve.During distance change increase between entrance valve block and movable valve,
Movable valve is not by connector to entrance valve block applying power；When the distance between entrance valve block and movable valve reach maximum
When, i.e., folded piece is fully expanded, articulated elements bending stretching, extension or flexible member are tensioned, and now movable valve can pass through connector
To entrance valve block applying power, to change the Opening pressure of safety valve.
Alternatively, the flexible member is arranged in the valve cavity and supports the movable valve；Or
The flexible member is located at outside the valve cavity, and the first end fixed setting of the flexible member, the second end
It is connected with the movable valve.
Flexible member may be provided in valve cavity, and apply elastic force to movable valve, and its elastic element can be with work
Movable valve is connected or is not connected to；Flexible member may be alternatively located at outside valve cavity, now the first end fixed setting of flexible member, the
Two ends are connected with movable valve, so that movable valve is by driving the second end motion, make deformation of elastic element, and then to activity
Valve applies elastic force.
Alternatively, the cavity wall of the valve pocket is provided with passage, and the first end of the valve cavity is at the passage
It is connected with the cavity wall of the valve pocket and is connected with air.
The cavity wall of valve pocket is provided with passage, and the first end of valve cavity is by the passage and atmosphere, and valve
Second end of inner chamber is sealed by movable valve so that the pressure in valve cavity maintains 1 atmospheric pressure.
Alternatively, linking arm is connected between the valve cavity and the valve pocket, and the linking arm is located at the valve
The bottom of door inner chamber.
In the present embodiment, the setting of linking arm realizes the connection between valve cavity and valve pocket；Valve cavity and valve pocket
Between the sectional area of annular fluid passage that is formed it is smaller, if linking arm is arranged in annular fluid passage, annular fluid leads to
The sectional area in road further reduces, and is unfavorable for the flowing of fluid, therefore linking arm is arranged to positioned at the bottom of valve cavity.
Alternatively, the Fluid pressure automatic regulating system includes：
Electromagnetic relief pressure valve；With
Pressure sensor；The pressure sensor is arranged on the arrival end of the electromagnetic relief pressure valve, when the pressure sensing
When the Fluid pressure that device detects exceedes first setup pressure value, the pressure sensor transmits signal to the electromagnetism and subtracted
Pressure valve, the electromagnetic relief pressure valve work.
In the present embodiment, Fluid pressure automatic regulating system is the electromagnetic relief pressure valve with pressure sensor, works as pressure sensing
When device senses pressure more than the first setup pressure value, signal can be passed to electromagnetic relief pressure valve, electromagnetic relief pressure valve can be according to letter
Number valve is automatically adjusted, reduce the Fluid pressure of inflow, prevent the hypertonia in the valve pocket of safety valve.
The utility model additionally provides a kind of electric heater, and the inlet end of the electric heater is provided with any of the above-described implementation
Relief valve assembly described in scheme.Because electric heater includes the relief valve assembly described in any of the above-described embodiment, therefore
Whole beneficial effects with the relief valve assembly described in any of the above-described embodiment.
Compared to the prior art the utility model, has the advantages that：
The relief valve assembly that embodiment of the present utility model provides, it is less than or equal to the first setting in the fluid pressure of inflow
Opening pressure is unchanged during pressure value, when the fluid pressure of inflow is more than the first setup pressure value according to the Fluid pressure of inflow
Adjust automatically Opening pressure, the pressure in the valve body of safety valve is set to be no more than the vent pressure of safety valve, so that safety valve
Component when Fluid pressure is higher and relatively low can normal work, and Opening pressure is without manual adjustment so that safety valve
Component it is easy to use, safe；
Still optionally further, when Fluid pressure is less than or equal to the first setup pressure value, the stream that is subject on movable valve
Body pressure offsets with the elastic force of flexible member, and now Fluid pressure automatic regulating system does not play a part of to adjust pressure；When
When Fluid pressure is more than the first setup pressure value, the Fluid pressure being subject on movable valve is more than elastic force, make movable valve by
Power is uneven, and now the unbalanced power on movable valve can be transferred to safety valve, the Opening pressure of safety valve is correspondingly risen
Height, so that the pressure in the valve body of safety valve is maintained at preset value；
Still optionally further, the presence of movable valve not working stroke, pressed when Fluid pressure is less than or equal to the first setting
During force value, movable valve is moved in the equilibrium process of Fluid pressure and the elastic force of flexible member, although movable valve moves,
But Opening pressure is not adjusted, therefore the motion of movable valve is not working stroke to entrance valve block applying power.
Still optionally further, by setting link slot that there is the length corresponding with not working stroke, or setting connector
Length it is variable or connector is flexible member so that although motion be present not to the mistake of entrance valve block applying power in movable valve
Journey, to realize not working stroke of the movable valve when Fluid pressure is less than or equal to the first setup pressure value；
Still optionally further, Fluid pressure automatic regulating system includes the electromagnetic relief pressure valve with pressure sensor, works as pressure
Sensor sensing to pressure more than the first setup pressure value when, signal can be passed to electromagnetic relief pressure valve, electromagnetic relief pressure valve can root
It is believed that number automatically adjusting valve, the Fluid pressure of inflow is reduced, prevents the hypertonia in the valve pocket of safety valve.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical solutions of the utility model, and a part for constitution instruction,
With being used to explain the technical solution of the utility model together with embodiments herein, do not form to technical solutions of the utility model
Limitation.
Fig. 1 is the cross section structure diagram according to the relief valve assembly of the embodiment of the utility model one；
Fig. 2 is another cross section structure diagram of the relief valve assembly shown in Fig. 1；
Fig. 3 is the partial structural diagram of the relief valve assembly shown in Fig. 1；
Fig. 4 is the dimensional structure diagram of the safety valve of the relief valve assembly shown in Fig. 1；
Fig. 5 is the cross section structure diagram of the Fluid pressure automatic regulating system of the relief valve assembly shown in Fig. 1；
Fig. 6 is the overlooking the structure diagram of the Fluid pressure automatic regulating system of the relief valve assembly shown in Fig. 1；
Fig. 7 is the structural representation according to the relief valve assembly of another embodiment of the utility model.
Wherein, the relation in Fig. 1-Fig. 7 between reference and component names is
1 safety valve, 10 valve bodies, 11 entrance valve blocks, 110 link slots, 111 sealing rings, 12 enter unlatching spring, 13 pressure releases
Bar, 14 pressure-releasing chambers, 15 relief holes, 16 pressure release plectrums, 17 pressure release springs, 2 automatic regulation system for pressure, 20 valve pockets, in 21 valves
Chamber, 22 movable valves, 23 pressure regulating springs, 24 connectors, 240 snap fits, 25 passages, 26 linking arms, 27 valve sealing rings,
28 ventilation linking arms, 3 connectors, 30 inlet slots, 31 fluid passages, 4 electromagnetic relief pressure valves, 5 pressure sensors, 6,7 sealing rings.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with accompanying drawing to this
The embodiment of utility model is described in detail.It should be noted that in the case where not conflicting, embodiment in the application and
Feature in embodiment can be mutually combined.
Embodiment one：
As shown in Figure 1-Figure 3, embodiment of the present utility model provides a kind of safety valve for automatically adjusting Fluid pressure
Component, including：Safety valve 1 and Fluid pressure automatic regulating system 2.
Wherein, Fluid pressure automatic regulating system 2 is arranged on the arrival end of safety valve 1, and the valve body of adjustable safety valve 1
Pressure in 10.Specifically, when the Fluid pressure for flowing into safety valve 1 is less than or equal to the first setup pressure value, Fluid pressure
Automatic regulating system 2 does not work, i.e., is adjusted without pressure, and the Opening pressure of relief valve assembly is the unlatching pressure of safety valve 1
Power；When the Fluid pressure for flowing into safety valve 1 is more than the first setup pressure value, Fluid pressure automatic regulating system 2 works, and root
According to the Fluid pressure adjust automatically Opening pressure of inflow, the pressure in the valve body 10 of safety valve 1 is set to be maintained at preset value, and this is pre-
If value enables the normal work of safety valve 1 no more than the vent pressure of safety valve.
The relief valve assembly of the present embodiment, when Fluid pressure is higher and relatively low can normal work, and Opening pressure
Without manual adjustment so that relief valve assembly it is easy to use, safe.
Wherein, safety valve 1 and Fluid pressure automatic regulating system 2 are connected by connector 3.Wherein, safety valve 1 and connection
Device 3 together, and is provided with therebetween sealing ring 6 by Screw assembly, to prevent in junction seepage.Fluid pressure automatically adjusts
System 2 and connector 3 are provided with therebetween sealing ring 7 by together with Screw assembly, to prevent in junction seepage.Such as Fig. 2
Shown in Fig. 4, connector 3 includes inlet slot 31 and fluid passage 32, and fluid can pass through after Fluid pressure automatic regulating system 2
Inlet slot 31 enters fluid passage 32, then flows to safety valve 1.
Specifically, Fluid pressure automatic regulating system 2 includes：Pressure-regulating valve body, movable valve 22 and flexible member.
Wherein, pressure-regulating valve body its there is the valve pocket 20 that connect with the entrance of safety valve 1, and with valve in valve pocket
Chamber 21, first end (lower end in figure) and the fluid isolation of valve pocket 20 of valve cavity 21.
Movable valve 22 is sealingly disposed in the second end (upper end in figure) of valve cavity 21, and can be in valve cavity 21
Interior movement, specifically, as shown in Figures 2 and 3, in the present embodiment, movable valve 22 is hermetically set by valve sealing ring 27
Put in valve cavity 21.
Flexible member can provide elastic force to movable valve.Specifically, in the present embodiment, flexible member is adjusted for pressure
Spring 23.
Due to first end and the fluid isolation of valve pocket 20 of valve cavity 21, therefore fluid in valve pocket 20 can be prevented from first
End is into valve cavity 21 and acts on movable valve 22, and such movable valve 22 is only applied by the fluid at the second end to it
Fluid pressure, it is therefore prevented that movable valve 22 is cancelled out each other by after the Fluid pressure that the fluid at first end and the second end applies,
Adjustment effect can not be played.
Movable valve 22 is total to by the elastic force that the pressure and pressure regulating spring 23 of the fluid at the second end apply
Same-action, so when Fluid pressure is less than or equal to the first setup pressure value, the Fluid pressure that is subject on movable valve 22 with
Elastic force offsets (do not consider movable valve 22 gravity of itself), and now Fluid pressure automatic regulating system is adjusted without pressure
Section；When Fluid pressure is more than the first setup pressure value, the Fluid pressure being subject on movable valve 22 is more than elastic force, makes activity
The force unbalance of valve 22, now the unbalanced power on movable valve 22 can be transferred to safety valve 1, make the unlatching of safety valve 1
Pressure correspondingly raises so that the pressure when the Fluid pressure of inflow is higher in the valve body of safety valve remains to be maintained at default
Value.
Further, movable valve 22 is connected with the entrance valve block 11 of the arrival end of safety valve 1, and movable valve 22 is present
Not working stroke, during so that Fluid pressure being less than or equal to the first setup pressure value, movable valve 22 is in fluid and flexible member
In the presence of motion but do not apply force to entrance valve block 11.Specifically, when Fluid pressure is less than or equal to the first setup pressure value
When, movable valve 22 moves under the pressure of fluid, and the movable valve 22 of motion deforms pressure regulating spring 23, the pressure of deformation
Adjust spring 23 and elastic force is applied to movable valve 22, when the elastic force and fluid pressure balance on movable valve 22, activity
Valve 22 stops movement, and in the process, although movable valve 22 moves, entrance valve block 11 is not applied in motion process
Reinforcing, the Opening pressure of non-regulation safety valve 1, therefore the motion are not working stroke.
When Fluid pressure is more than the first setup pressure value, movable valve 22 moves in the presence of fluid and flexible member
And apply force to entrance valve block 11.Specifically, when Fluid pressure is more than the first setup pressure value, movable valve 22 moves to pole
The elastic force being subject to thereon after extreme position still not up to balances with Fluid pressure, and Fluid pressure is now movable still greater than elastic force
Valve 22 increases the Opening pressure of safety valve 1, and then cause whole safety valve to the connected applying power of entrance valve block 11
The Opening pressure increase of component.
The Fluid pressure and the difference of elastic force that the size for the power being subject on entrance valve block 11 is subject to equal to movable valve 22,
Because the extreme position that movable valve 22 moves is constant, therefore elastic force is also constant, the power being subject on such entrance valve block 11 with
The increase of Fluid pressure and synchronously increase, the Opening pressure of safety valve 1 synchronously increases also with the increase of Fluid pressure, enters
And enable safety valve 1 valve body in pressure be maintained at preset value.
Alternatively, to make movable valve 22 not working stroke be present, one in entrance valve block 11 and movable valve 22
Be provided with link slot 110, another is provided with connector 24, and the direction of motion of the link slot 110 along movable valve 22 have with
The not corresponding length of working stroke, connector 24 are connected with link slot 110 and can moved in link slot 110.Specifically, exist
In the present embodiment, as shown in Figure 1-Figure 3, entrance valve block 11 is provided with link slot 110, and movable valve 22 is provided with connector 24.
The one end of connector 24 is fixed on movable valve 22, is moved with movable valve 22, and the other end is provided with snap fit 240, hooks in inlet valve
In the link slot 110 of piece 11, movable valve 22 and connector 24 are movable within a certain height, do not influence entrance valve block 11.
Link slot 110 has the length corresponding with the not working stroke of movable valve 22, and such movable valve 22 is flowing
When being moved under the effect of body pressure, it can be moved with follower link 24 in link slot 110, and compression pressure regulation spring 23, connecting
Part 24 moves to contacted with the cell wall of link slot 110 before, if the elastic force and fluid pressure balance that are subject on movable valve 22,
Movable valve 22 stops movement, and movable valve 22 is not to the applying power of entrance valve block 11；Otherwise movable valve 22 drives connection
Part 24 continues to move to, until connector 23 contacts with the cell wall of link slot 110, cell wall prevention connector 24 and movable valve 22 after
Continuous movement, now movable valve 22 moves to extreme position, the elastic force and the difference of Fluid pressure being subject on movable valve 22
Entrance valve block 11 is transferred to by the cooperation of connector 24 and link slot 110, increases the Opening pressure of safety valve 1.
Certainly, other modes also be present, enable movable valve 22 that there is not working stroke.Describe below wherein four kinds
Mode, remaining mode will not enumerate.
Mode one：
Entrance valve block is connected with movable valve by connector, and connector is the changeable folded piece of length.Work as activity
Valve motion, when deploying folded piece but being not up to its maximum length, the change of the distance between movable valve and entrance valve block, but
Movable valve is not by folded piece to entrance valve block applying power, therefore the motion of movable valve is not working stroke；Work as folded piece
When being expanded to its maximum length, movable valve can be by folded piece to entrance valve block applying power, to change the unlatching pressure of safety valve
Power.
Mode two：
Entrance valve block is connected with movable valve by connector, and the multiple sub- connecting members of connector are mutually socketed to form
Coupling.When multiple sub- connecting members of Coupling mutually stretch out but during the not up to maximum length of Coupling, the fortune of movable valve
Move as not working stroke；When Coupling reaches its maximum length, movable valve can by Coupling to entrance valve block applying power,
Carry out the Opening pressure of regulation safety valve.
Mode three：
Entrance valve block is connected with movable valve by connector, and the multiple sub- connecting members of connector are hinged form successively
Articulated elements.When multiple sub- connecting members of articulated elements mutually rotate but during the not up to maximum length of articulated elements, the fortune of movable valve
Move as not working stroke；When articulated elements reaches its maximum length, movable valve can by articulated elements to entrance valve block applying power,
Carry out the Opening pressure of regulation safety valve.
Mode four：
Entrance valve block is connected with movable valve by connector, and connector is that connector is flexible member, is such as restricted.When
When flexible member is not tensioned, the motion of movable valve is not working stroke；When flexible member is tensioned, movable valve can be by soft
Property element carrys out the Opening pressure of regulation safety valve to entrance valve block applying power.
As shown in Fig. 1-Fig. 3 and Fig. 5, in the present embodiment, pressure regulating spring 23 is arranged in valve cavity 21 and can be to
Movable valve 22 provides elastic anchorage force.
Certainly, pressure regulating spring 23 can also be located at outside valve cavity 21, now the first end of pressure regulating spring 23
Fixed setting, the second end are connected with movable valve 22, and elastic force is provided to movable valve 22.
As shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 6, the cavity wall of valve pocket 20 is provided with passage 25, the first end of valve cavity 21
Cavity wall with valve pocket 20 at passage 25 is connected so that valve cavity 21 is connected with air, and the of valve cavity 21
Two ends are sealed by movable valve 22 and valve sealing ring 27 so that the pressure in valve cavity 21 maintains 1 atmospheric pressure.
As shown in Figure 5 and Figure 6, linking arm 26 is connected between valve cavity 21 and valve pocket 20, and linking arm 26 is located at valve
The bottom of door inner chamber 21.Wherein, linking arm 26 includes the ventilation linking arm 28 with venting channels, and the first end of valve cavity 21 is led to
Ventilation linking arm 28 is crossed with passage 25 to be connected.
The setting of linking arm 26 realizes the connection between valve cavity 21 and valve pocket 20.Due to valve cavity 21 and valve pocket
The sectional area of the annular fluid passage formed between 20 is smaller, if linking arm 26 is arranged in annular fluid passage, annular flow
The sectional area of body passage further reduces, and is unfavorable for the flowing of fluid, therefore linking arm 26 is arranged to positioned at valve cavity 21
Bottom.So, after automatic regulation system for pressure 2 assembles with connector 3, fluid smoothly can enter from valve pocket 20, by inlet slot
30 reach fluid passage 31.
As depicted in figs. 1 and 2, entering in the valve body 10 of safety valve 1 opens spring 12 and entrance valve block 11 is pressed in into connection
On device 3, there is sealing ring 111 to seal between entrance valve block 11 and connector 3, ensure that fluid can only flow to valve body from fluid passage 31
In 10.
Safety valve 1 also has pressure-releasing chamber 14, has pressure release bar 13 and pressure release spring 17, the chamber of pressure-releasing chamber 14 in pressure-releasing chamber 14
Wall offers relief hole 15, and one end is provided with pressure release plectrum 16.When the Fluid pressure in valve body 10 is higher than the pressure of pressure release spring 17
When (vent pressure is usually 0.75MPa-0.85MPa), Fluid pressure promotes pressure release bar 14, flows to the fluid in valve body 10 and lets out
Chamber 14 is pressed, is flowed out from relief hole 15, carries out pressure release.
When having impurity, dirt in pressure-releasing chamber 14, pressure release bar 14 can also be driven to open, made by stirring pressure release plectrum 16
Fluid in valve body 10 is flowed in pressure-releasing chamber 14, is reached and is rinsed the effect of pressure-releasing chamber 14.
Below by specific example, the relief valve assembly of the present embodiment is further illustrated.
The safety valve of the present embodiment is arranged on to the arrival end of electric heater.
Flowed into no water, that is, when not having hydraulic pressure, pressure regulating spring 23 is in free state, and movable valve 22 is in valve
The peak of door inner chamber 21, the peak of the snap fit 240 of connector 24 in link slot 110.
Valve sealing ring 27 ensures that water can not enter when movable valve 22 moves between valve cavity 21 and movable valve 22
Enter to inside valve cavity 21.
The inside of valve cavity 21 is connected with ambient atmosphere by passage 25, when movable valve 22 moves, valve cavity
21 internal pressures maintain 1 atmospheric pressure.
Setting：It is that (K is definite value to K, scope into the pressure of spring 12 is opened：0.02MPa-0.05MPa), into safety valve
1 hydraulic pressure is N1, the pressure in valve body 10 is N2(i.e. the pressure of the top of entrance valve block 11), the pressure of pressure regulating spring 23 is
N3, the maximum pressure of pressure regulating spring 23 is definite value P (P scopes：0.3MPa-0.6MPa), pressure of the connector 24 toward drop-down
N4, as the pressure N of pressure regulating spring 233During=P, the snap fit 240 of connector 24 is contacted with the minimum point of link slot 110, i.e., pressure is adjusted
Save the pressure N of spring 233Maximum is equal to P.
As intake pressure N1＜ P, during 22 stress balance of movable valve, snap fit 240 is not in contact with link slot 110, now valve body
Hydraulic pressure N in 102=N1- K ＜ P.
As intake pressure N1=P, during 22 pressure balance of movable valve, snap fit 240 contacts link slot 110 but does not produce drawing
Power, now, the hydraulic pressure N in valve body 102=N1- K=P-K ＜ P.
As intake pressure N1＞ P, during 22 pressure balance of movable valve, pressure regulating spring 23 is compressed to maximum, snap fit
240 contact link slots 110 simultaneously produce pulling force, and connector 24 down pulls in mouthful valve block 11, the pressure N of pressure regulating spring 233=
P, hydraulic pressure is with pressure regulating spring 23 to the pressure differential of movable valve 22 --- pressure N of the connector 24 toward drop-down4=N1- P, valve body
Hydraulic pressure N in 102=N1-K-N4=N1-K-(N1- P)=P-K ＜ P.
Therefore when the definite value P of pressure regulating spring 23 takes 0.6MPa, takes 0.05MPa into the pressure K for opening spring 12, nothing
It is much by intake pressure, the hydraulic pressure N in valve body 1020.6MPa-0.05MPa=0.55MPa is maintained always, much smaller than pressure release pressure
Power (0.75MPa-0.85MPa), therefore no matter under what water pressures, will not produce the situation of draining pressure release.
Embodiment two：
As shown in fig. 7, a kind of relief valve assembly for automatically adjusting Fluid pressure is present embodiments provided, including safety valve
1 and Fluid pressure automatic regulating system.
Fluid pressure automatic regulating system includes electromagnetic relief pressure valve 4 and pressure sensor 5.Wherein pressure sensor 4 is set
In the arrival end of the electromagnetic relief pressure valve 5, when the Fluid pressure (direction of the inflow such as arrow for the inflow that pressure sensor 4 detects
Head shown in) more than the first setup pressure value when, pressure sensor 4 transmit signal to electromagnetic relief pressure valve 5, electromagnetic relief pressure valve 5 work,
Valve can be automatically adjusted according to the signal of transmission, electromagnetic relief pressure valve reduces the fluid of safety valve by increasing fluid intake resistance
Into pressure, realize that the pressure in valve body is less than or equal to setting value, prevent the hypertonia in the valve body of safety valve.
It should be noted that described herein " sets when the Fluid pressure for flowing into safety valve is less than or equal to first
During pressure value, Fluid pressure automatic regulating system does not work " in do not work refer to Fluid pressure automatic regulating system without
Pressure is adjusted, but it can be moved, as movable valve can carry out not working stroke as described above during this period.
Although the embodiment disclosed by the utility model is as above, described content is only to readily appreciate the utility model
And the embodiment used, it is not limited to the utility model.Technical staff in any the utility model art,
On the premise of not departing from the spirit and scope disclosed by the utility model, it can be carried out in the form and details of implementation any
Modification and change, but scope of patent protection of the present utility model, must still be defined by appended claims and be defined.
Claims (10)
- A kind of 1. relief valve assembly, it is characterised in that including：Safety valve；WithFluid pressure automatic regulating system, the Fluid pressure automatic regulating system are arranged on the arrival end of the safety valve；Wherein, when the Fluid pressure for flowing into the safety valve is less than or equal to the first setup pressure value, the Fluid pressure is certainly Dynamic regulating system does not work；When the Fluid pressure for flowing into the safety valve is more than first setup pressure value, the fluid Automatic regulation system for pressure works, and the pressure in the valve body of the safety valve is maintained at preset value.
- 2. relief valve assembly according to claim 1, it is characterised in that the Fluid pressure automatic regulating system includes：Pressure-regulating valve body, it has the valve pocket connected with the entrance of the safety valve, and has valve cavity in the valve pocket, The first end of the valve cavity and the valve pocket fluid isolation；Movable valve, it is sealingly disposed in the second end of the valve cavity, and can be moved in the valve cavity；WithFlexible member, the flexible member provide elastic force to the movable valve.
- 3. relief valve assembly according to claim 2, it is characterised in thatThe movable valve is connected with the entrance valve block of the arrival end of the safety valve and movable valve presence is not done work Stroke, during so that Fluid pressure being less than or equal to first setup pressure value, the movable valve is in fluid and the elasticity Moved in the presence of element but do not apply force to the entrance valve block；When Fluid pressure is more than first setup pressure value, The movable valve moves in the presence of fluid and the flexible member and applies force to the entrance valve block.
- 4. relief valve assembly according to claim 3, it is characterised in thatOne in the entrance valve block and the movable valve is provided with link slot, and another is provided with connector, and described The direction of motion of the link slot along the movable valve has the length corresponding with the not working stroke, the connector and institute Link slot is stated to connect and can move in the link slot.
- 5. relief valve assembly according to claim 3, it is characterised in thatThe entrance valve block is connected with the movable valve by connector, and the connector is the changeable folding of length The Coupling or multiple sub- connecting members that part, multiple sub- connecting members are mutually socketed to form are hinged the articulated elements formed, Huo Zhesuo successively It is flexible member to state connector.
- 6. relief valve assembly according to claim 2, it is characterised in thatThe flexible member is arranged in the valve cavity and supports the movable valve；OrThe flexible member is located at outside the valve cavity, and the first end fixed setting of the flexible member, the second end and institute Movable valve is stated to be connected.
- 7. according to the relief valve assembly any one of claim 2-6, it is characterised in thatThe cavity wall of the valve pocket is provided with passage, the first end of the valve cavity at the passage with the valve pocket Cavity wall is connected and is connected with air.
- 8. according to the relief valve assembly any one of claim 2-6, it is characterised in thatLinking arm is connected between the valve cavity and the valve pocket, and the linking arm is located under the valve cavity Portion.
- 9. relief valve assembly according to claim 1, it is characterised in that the Fluid pressure automatic regulating system includes：Electromagnetic relief pressure valve；WithPressure sensor；The pressure sensor is arranged on the arrival end of the electromagnetic relief pressure valve, when the pressure sensor is examined When the Fluid pressure measured exceedes first setup pressure value, the pressure sensor transmits signal to the electromagnetic pressure-decreasing Valve, the electromagnetic relief pressure valve work.
- 10. a kind of electric heater, it is characterised in that the inlet end of the electric heater is provided with as any in claim 1-9 Relief valve assembly described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720369624.XU CN206802418U (en) | 2017-04-10 | 2017-04-10 | Relief valve assembly and electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720369624.XU CN206802418U (en) | 2017-04-10 | 2017-04-10 | Relief valve assembly and electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802418U true CN206802418U (en) | 2017-12-26 |
Family
ID=60732498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720369624.XU Expired - Fee Related CN206802418U (en) | 2017-04-10 | 2017-04-10 | Relief valve assembly and electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032374A (en) * | 2020-08-04 | 2020-12-04 | 安徽斯瑞尔阀门有限公司 | Backflow type double-end valve for hydraulic leveling |
-
2017
- 2017-04-10 CN CN201720369624.XU patent/CN206802418U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032374A (en) * | 2020-08-04 | 2020-12-04 | 安徽斯瑞尔阀门有限公司 | Backflow type double-end valve for hydraulic leveling |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |