CN206754567U - Passive valve system - Google Patents
Passive valve system Download PDFInfo
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- CN206754567U CN206754567U CN201720398696.7U CN201720398696U CN206754567U CN 206754567 U CN206754567 U CN 206754567U CN 201720398696 U CN201720398696 U CN 201720398696U CN 206754567 U CN206754567 U CN 206754567U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a kind of passive valve system, including the valve with opening and closing member；It is connected with the opening and closing member and for activating the opening and closing member to open and close the weight of the valve；Shifted suitable for the temperature-sensitive component being located on the outer surface of container and when the temperature of the outer surface of the container is more than predetermined temperature relative to the outer surface of the container；The transmission executing agency being connected respectively with the temperature-sensitive component and the weight, the transmission executing agency discharge the weight when the temperature-sensitive component shifts to allow the weight to activate the opening and closing member by self gravitation.Gravitional force the natural law extended with reference to potential energy from high energy region to Low Energy Region, is changed into valve opening and the power closed by passive valve system of the present utility model effectively using the heated characteristic deformed upon of temperature-sensitive component by transmission device；The sensitivity and security of system are ensure that, without control system, human intervention and active equipment.
Description
Technical field
It the utility model is related to valve technology field, more particularly to nuclear energy power generation, petrochemical industry and aerospace field
Passive valve system.
Background technology
When accident occurs in nuclear power station, in the case that particularly reactor core can not be cooled in time, core meltdown can be caused,
And burn through container is possible to, destroy the integrality of container.The reactor core fragment of these fusings brings the peace that great radioactivity escapes
Full hidden danger.
The valve system of nuclear reactor conventional cooling system, can in theory by machinery, electric or operator action
To realize the purpose cooled down under exception or accident conditions.But these modes are all active, dependent on extrinsic motive
Or manual operation is, it is necessary to which the possibility that certain response time, control system failure or operations staff miss operating item can't be complete
It is complete to exclude.
Utility model content
The application is made based on discovery of the utility model people to following facts and problem and understanding：
Correlation technique shows following several passive control modes in the world be present at present:(1) magnetic material Curie point temperature
The passive shutdown unit of control is spent, main operation principle is:Connected between control rod and drive mechanism with magnetisable material, profit
There is the characteristics of Curie-point temperature with magnetic material, i.e., when temperature is raised to a certain degree, the magnetic of magnetic material declines, and makes control
Rod departs from and fallen, this most typical representative of design be Japan used in its commercial fast reactor designs from reactor shut-off system；(2)
Gas expansion drive device:In sleeve pipe of the fast reactor reactor core display filled with gas, in nominal situation, the sodium liquid level of sleeve pipe surpasses
Core height is crossed, plays a part of neutron reflection returning reactor core, when primary Ioops loss-of-flow accident occurs, sodium liquid level, which declines, makes reactor core
Neutron leakage increase, so as to introduce negative reactivity, this reactor shut-off system is to be directed to non-protected loss-of-flow accident, suitable for small-sized heap
Core, for large-scale reactor core, it is impossible to enough negative reactivities are provided, need to be used in combination with other passive shutdown units (for example,
The temperature controlled passive shutdown unit SASS of magnetic material Curie point and gas expansion drive device are set simultaneously in reactor core
GEM), Japan and the U.S. have carried out more research to this device；(3) the passive shutdown unit of liquid suspension, normal fortune
Under row operating mode, control rod is set to be located at reactor core top using cooling agent buoyancy, under accident conditions, coolant flow drops to design limit
During value, control rod weight exceedes cooling agent buoyancy, and control rod falls, this shutdown unit is directed to and non-protected defluidization thing
Therefore.The representative of this shutdown unit is the passive shutdown unit PPS and HRS of liquid suspension of Russia；(4) control rod thermal expansion
Strengthen drive mechanism, CRDM uses thermal expansion strengthening design, and the critical material of drive mechanism is used with special
The material (for example, thermal coefficient of expansion is much larger than general material, or there is temperature memory performance etc.) of fuel factor, when reactor temperature
During rise, fuel factor material property changes, and control rod then can be with a certain degree of underthrust；When temperature reaches setting limit value
When, the performance change of fuel factor material also reaches setting limit value, starts control rod release device, control rod is by gravity insertion heap
Core, Russian various temperature effect drive passive shutdown component, Japanese reinforcing thermal expansion drive device, and Germany is Europe
Fast reactor designs, and it is a kind of to belong to this.Several passive control modes are substantially nuclear reactor and taken when there is accident above
Counter-measure, or shutdown, or cooled down；But above-mentioned several ways if being improved to existing nuclear reactor into
It is Ben Taigao, complicated, or even need to rebuild nuclear reactor, it is difficult to apply on existing nuclear reactor.
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
A kind of passive valve system for being triggered according to the temperature difference and performing and switching is proposed with new one side.
According to the passive valve system of the utility model embodiment, including：
Valve, the valve have opening and closing member；
Weight, the weight are connected with the opening and closing member, described to open and close for activating the opening and closing member
Valve；
Temperature-sensitive component, the temperature-sensitive component are suitable to be located on the outer surface of container and in the temperature of the outer surface of the container
Shifted during more than predetermined temperature relative to the outer surface of the container；
Executing agency is transmitted, the transmission executing agency is connected with the temperature-sensitive component and the weight respectively, the biography
Pass executing agency and the weight is discharged when the temperature-sensitive component shifts to allow described in the weight activated by self gravitation
Opening and closing member.
According to the passive valve system of the utility model embodiment, on the surface of the pressure vessel of container such as reactor
Temperature when exceeding predetermined temperature, temperature-sensitive component produces displacement, and then transmits executing agency's release weight, so as to weight rely on from
Body gravity opens and closes valve, realizes the complete passive of valve, securely and reliably.
In certain embodiments, the transmission executing agency includes the first fixed pulley and the first hawser, first hawser
First end be connected with the temperature-sensitive component, the second end of first hawser bypasses first fixed pulley and the weight phase
Even, wherein the temperature-sensitive component when the temperature of the outer surface of the container is more than predetermined temperature in the presence of the weight to
It is upper to shift to allow the weight to pull the opening and closing member.
In certain embodiments, passive valve system also includes the second hawser and the second fixed pulley, second hawser
First end be connected with the weight, the second end of second hawser bypasses second fixed pulley and the opening and closing member phase
Even.
In certain embodiments, the transmission executing agency includes：First connector, the first connector first end with
The temperature-sensitive component is connected；
Elastic component, the first end of the elastic component are fixed, and the second end of the elastic component is connected with first connector；
Lever, the first end of the lever are connected with first connector, the ballast support in the lever
Two ends,
Wherein described temperature-sensitive component is when the temperature of the outer surface of the container is more than predetermined temperature in the elastic component
Lower displacement is assisted to pull the opening and closing member to allow the weight to move down.
In certain embodiments, the elastic component is extension spring and is directed away from the direction of the container and pulls described the
A connection piece, wherein the temperature-sensitive component when the temperature of the outer surface of the container is more than predetermined temperature in the elastic component
The lower upward displacement of effect is so that the second end of the lever is moved down to allow the weight to move down and pulls described open
Closing part part.
In certain embodiments, the elastic component is compression spring and promotes described first to connect towards the direction of the container
Fitting, wherein the temperature-sensitive component when the temperature of the outer surface of the container is more than predetermined temperature in the assistance of the elastic component
Lower displacement downwards is pulled so that the second end of the lever moves up with allowing the weight to be moved down along the lever
The opening and closing member.
In certain embodiments, the transmission executing agency includes：
Elastic component, the first end of the elastic component are fixed；
First fixed pulley；
First hawser, the first end of first hawser are connected with the temperature-sensitive component, the second end of first hawser
It is connected around first fixed pulley with the elastic component；
Lever, the first end of the lever are connected with first hawser, the ballast support in the lever second
End, the weight by being connected around the second hawser of the second fixed pulley with the opening and closing member,
Wherein described temperature-sensitive component is when the temperature of the outer surface of the container is more than predetermined temperature in the elastic component
The lower upward displacement of effect so that the second end of the lever moves down to allow the weight to move down along the lever and
Pull the opening and closing member.
In certain embodiments, it is provided with part of the lever between the fulcrum of the lever and the second end of the lever
Recess, the weight fall into when being moved down into the recess along the lever and/or through the recesses.
In certain embodiments, the temperature-sensitive component includes support, and the transmission executing agency is connected with the support, institute
Stating support has low-melting-point metal support column, and the low-melting-point metal support column is connected with the outer surface of the container and described
Fusing deformation is so that the support is relative to the outer surface shifting of the container when temperature of the outer surface of container is more than predetermined temperature
Position.
In certain embodiments, the support also includes top plate and pressure balance plate, the low-melting-point metal support column with
The top plate is connected, and the pressure balance plate is located at below the top plate and is connected with the transmission executing agency.
In certain embodiments, the low-melting-point metal support column is made up of Zn-base alloy.
In certain embodiments, the low-melting-point metal support column is by least two alloy materials in magnesium, tin, antimony and lead
It is made.
In certain embodiments, the temperature-sensitive component includes the first sheet metal and the second sheet metal being combined with each other, institute
The thermal coefficient of expansion for stating the thermal coefficient of expansion and second sheet metal of the first sheet metal is different from each other.
In certain embodiments, the thermal coefficient of expansion of first sheet metal is less than the thermal expansion system of second sheet metal
Number, first sheet metal are connected with the outer surface of the container, and second sheet metal is connected with the transmission executing agency.
Had the advantages that according to the passive valve system of the utility model embodiment：
1st, effectively using thermo-sensitive material (such as：Low-melting-point metal or bimetal leaf) characteristic deformed upon of being heated, with reference to
The natural law that potential energy extends from high energy region to Low Energy Region, gravitional force is changed into valve opening/closing by transmission device
Power；
2nd, when institute, monitoring device surface temperature is excessive, more than predetermined value, reaches when needing Open valve exhaust cooling state, from
Dynamic triggering, the passive sensitivity and security for designing the system that ensure that, without control system, human intervention and active
Equipment etc.；
3rd, to there is the change that equipment is built smaller, on the basis of existing slightly transformation can reach it is unpowered in the case of valve
Door unlatching/closing, it is ensured that the flow working medium in reliable control piper, securely and reliably；
4th, structure and manufacture craft are simple, realize convenient, fast response time, can be realized under severe rugged environment and working condition
Control management to valve arrangement.
Brief description of the drawings
Fig. 1 is the structural representation according to the passive valve system of the utility model embodiment.
Fig. 2 is the structural representation according to the passive valve system of another embodiment of the utility model.
Fig. 3 is the structural representation according to the passive valve system of the another embodiment of the utility model.
Fig. 4 is the structural representation according to the passive valve system of the utility model another embodiment.
Fig. 5 is the structural representation according to the another passive valve system of another embodiment of the utility model.
Fig. 6 is the structural representation according to the lever of the passive valve system of the utility model embodiment.
Reference：1- containers；2- temperature-sensitive components；21- low-melting-point metal support columns；3- elastic components；The connectors of 4- first；
The hawsers of 41- first；The hawsers of 42- second；5- levers；51- recesses；6- opening and closing members；7- weights；8- valves；9- first is slided surely
Wheel；The fixed pulleys of 10- second；11- pressure balance plates.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality
The limitation of type.
Included according to the passive valve system of the utility model embodiment：Valve 8, weight 7, temperature-sensitive component 2 and transmission
Executing agency.
Specifically, valve 8 has the opening and closing member 6 for being used for opening and closing the valve.Weight 7 is connected with opening and closing member 6,
For activating opening and closing member 6 to open and close valve 8.Temperature-sensitive component 2 is for example located on the outer surface of container 1 and in container 1
The temperature of outer surface shifted relative to the outer surface of container 1 when being more than predetermined temperature.Container 1 is, for example, that the pressure of reactor is held
Device, it will be appreciated by those skilled in the art that container 1 is not limited to the pressure vessel of reactor.
Transmit executing agency respectively with temperature-sensitive component 2 and weight 7 to be connected, when temperature-sensitive component 2 shifts, transmit executing agency
Weight 7 is discharged by the displacement of the temperature-sensitive component 2 to allow weight 7 to activate opening and closing member 6 by self gravitation.In other words,
When the hull-skin temperature of container 1 is less than predetermined temperature, weight 7 is in poised state, will not activate opening and closing member 6, when container 1
Hull-skin temperature rise when being more than predetermined temperature, temperature-sensitive component 2 is shifted, and the displacement is delivered to transmission executing agency, and transmission is held
Row mechanism discharges weight, that is, breaks the poised state of weight 7, and weight 7 applies active force by self gravitation to opening and closing member 6,
So as to activate opening and closing member 6.Here, term " release " refers to that weight 7 is not to opening and closing member 6 when weight 7 is in poised state
Applying power, when temperature-sensitive component 2 shifts, the poised state of weight 7 is broken, so as to weight 7 by self gravitation to opening and closing member
6 apply active forces to activate opening and closing member 6.
The operating process of the passive valve system according to the utility model embodiment is briefly described below：When container 1
Surface temperature is too high, and when being greater than predetermined temperature, temperature-sensitive component 2 is shifted over relative to the outer surface of container 1.When in temperature-sensitive
When component 2 is shifted over, executing agency's release weight 7 is transmitted to allow weight 7 to activate opening and closing member 6 by self gravitation, from
And open or close valve 8.
According to the passive valve system of the utility model embodiment, deformed upon by the way that temperature-sensitive component is heated, with reference to gesture
The natural law that can be extended from high energy region to Low Energy Region, the gravitional force of weight is changed into the power of valve opening closing；And
And triggered automatically according to the passive valve system of the utility model embodiment, sensitivity and security are ensure that, without
Control system, human intervention and active equipment etc..Simultaneously without significantly changing existing equipment building, slightly change on the basis of existing
Make can reach it is unpowered in the case of valve opening and closing, it is ensured that the flow working medium in reliable control piper, securely and reliably.
In addition, it is simple according to the passive valve system structure and manufacture craft of the utility model embodiment, realization convenience,
Fast response time, the control management to valve can be realized under severe rugged environment and working condition.
Below with reference to the accompanying drawings specific embodiment according to the utility model passive valve system is described.
As shown in figure 1, in certain embodiments, transmitting executing agency includes the first fixed pulley 9 and the first hawser 41, first
The first end of hawser 4 is connected with temperature-sensitive component 2, and the second end of the first hawser 41 is connected around the first fixed pulley 9 with weight 7.
When the temperature of the outer surface of container 1 is more than predetermined temperature, temperature-sensitive component 2 in the presence of weight 7 upward displacement to allow weight 7
Opening and closing member 6 is pulled to open or close valve 8.
As shown in Fig. 2 in further embodiments, transmitting executing agency also includes the second hawser 42 and the second fixed pulley
10, the first end of the second hawser 42 is connected with weight, and the second end of the second hawser 42 bypasses the second fixed pulley 10 and opening and closing member
It is connected.When the temperature of the outer surface of container 1 is more than predetermined temperature, temperature-sensitive component 2 moves relative to the outer surface of container 1
Position.Now the transmission through the first fixed pulley 9 and the first hawser 41, weight 7 are shifted downwards by Action of Gravity Field, and then fixed by second
The hawser 42 of pulley 10 and second pulls opening and closing member 6 to open or close valve 8.
In the above-described embodiments, can be to existing by setting first pulley component 9 and/or second pulley component 10
The passive opening and closing of valve is more simply, easily realized in the case of equipment building change amount is less, is improved according to this reality
With the applicability and economy of new passive valve system.
In certain embodiments, as shown in figure 3, transmitting executing agency includes the first connector 4, elastic component 3 and lever 5.
The first end (lower end in Fig. 3) of first connector 4 is connected with temperature-sensitive component 2.First end (Fig. 3 of elastic component 3
In upper end) it is fixed, the second end (lower end in Fig. 3) of elastic component 3 is connected with the first connector 4.First end (Fig. 3 of lever 5
Middle left end) it is connected with the first connector 4, weight 7 is supported on the second end (right-hand member in Fig. 3) of lever 5.In the appearance of container 1
When the temperature in face is more than predetermined temperature, temperature-sensitive component 2 is shifted under the assistance of elastic component 3 and drawn with allowing weight 7 to move down
Opening and closing member 6 is moved to open or close valve 8.
In the embodiment shown in fig. 3, term " assistance " refers to active force and temperature-sensitive group of the elastic component 3 to temperature-sensitive component 2
The direction of displacement of part 2 is consistent.For example, in figure 3, when the temperature of the outer surface of container 1 is more than predetermined temperature, such as temperature-sensitive component
2 displacements downwards, then elastic component 3 often promotes downwards temperature-sensitive component 2, if the upward displacement of temperature-sensitive component 2, then elastic component 3 to
It is upper often to pull temperature-sensitive component 2.
In some specific examples, elastic component 3 is extension spring and is directed away from the direction of container (such as in figure 3
The first connector 4 is pulled upwards), and when the temperature of the outer surface of container 1 is more than predetermined temperature, temperature-sensitive component 2 is in elastic component 3
The lower upward displacement of effect, the second end of lever 5 move down, and weight 7 moves down and pulls opening and closing member 6 to open or close
Valve 8.In some optional examples, elastic component 3 is compression spring and promoted towards the direction of container 1 (in Fig. 3 downwards)
First connector 4.When the temperature of the outer surface of container 1 is more than predetermined temperature, temperature-sensitive component 2 is downward under the assistance of elastic component 3
Displacement moves up so as to the second end of lever 5, and weight 7 moves down along lever 5 and pulls opening and closing member 6 to open or close
Valve 8.
In embodiment of the present utility model, transmit executing agency and reached temperature-sensitive component 2 with lever by elastic component 3
The displacement occurred during predetermined temperature is delivered to weight 7, that is, discharges weight, and then the caused displacement under gravity of weight 7, from
And opening and closing member 6 is pulled to open or close valve 8.
In other examples, as shown in figure 4, transmitting executing agency includes：Elastic component 3, the first fixed pulley 9, the first cable
Rope 41 and lever 5.
The first end (lower end in Fig. 4) of elastic component 3 is fixed.The first end of first hawser 41 is connected with temperature-sensitive component 2, the
Second end of one hawser 41 is connected around the first fixed pulley 9 with elastic component 3.The first end of lever 5 is connected with the first hawser 41,
The second end that weight 7 is supported on lever 5 is in poised state.Weight 7 by the second hawser 42 around the second fixed pulley 10 with
Opening and closing member 6 is connected.When the temperature of the outer surface of container 1 is more than predetermined temperature, temperature-sensitive component 2 is in the presence of elastic component 3
Upward displacement, the second end of lever 5 move down, and so as to discharge weight 7, weight 7 moves down and pulls opening and closing member 6 to beat
Open or close valve closing door 8.
In some optional examples, as shown in figure 4, temperature-sensitive component 2 includes support, transmit executing agency and be connected with support,
Support has low-melting-point metal support column 21, and low-melting-point metal support column 21 is connected with the outer surface of container 1, in the outer of container 1
When the temperature on surface is more than predetermined temperature low-melting-point metal support column 21 fusing deformation, thus support relative to container 1 appearance
Face shifts.
In some instances, support also includes top plate and pressure balance plate 11, low-melting-point metal support column 21 and top plate phase
Even, pressure balance plate 11 is located at below top plate and is connected with transmitting executing agency.
Preferably, low-melting-point metal support column 21 is made up of Zn-base alloy, alternatively, by magnesium, tin, antimony and lead
At least two alloy materials are made.
In the above-described embodiments, the setting of support, low-melting-point metal support column 21 and pressure balance plate 11, a side are passed through
Face ensures that fine displacements change can be delivered to weight, on the other hand avoids answering the excessive triggering offset deviation of local pressure, ensures to pass
Dynamic effect.
As shown in figure 5, in certain embodiments, temperature-sensitive component 2 includes the first sheet metal and the second gold medal being combined with each other
Belong to piece, the thermal coefficient of expansion of the thermal coefficient of expansion of the first sheet metal and the second sheet metal is different from each other.
Alternatively, the thermal coefficient of expansion of the first sheet metal be less than the second sheet metal thermal coefficient of expansion, the first sheet metal with
The outer surface connection of container, the second sheet metal are connected with transmitting executing agency.
In the present embodiment, using bimetal leaf as temperature-sensitive component, there is reliability height, high sensitivity, be swift in response
And low, the versatile effect of cost.
As shown in fig. 6, in some specific examples, lever 5 is set on the part between its fulcrum and the second end of lever
There is a recess 51, weight 7 falls into when being moved down into recess 51 along lever and/or through recess.Certainly, recess 51 should ensure that weight
Thing 7 disclosure satisfy that opening and closing member 6 opens or closes displacement caused by valve 8 by the downward displacement of gravity generation, if
Weight 7 is fallen into but is not passed through recess 51, and weight 7 can be avoided to be dropped to after open/closed valve door 8 is completed on miscellaneous equipment and made
Into damage.
In the description of this specification, reference term " embodiment one ", " embodiment two ", " such as ", " specific example " or
The description of " preferred embodiment " etc. means to combine specific features, structure, material or the feature that the embodiment or example describe
It is contained at least one embodiment or example of the present utility model.In this manual, to the schematic representation of above-mentioned term
Necessarily it is directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff can be carried out the different embodiments or example and the feature of different embodiments or example described in this specification
With reference to and combination.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
At least one this feature can be expressed or be implicitly included to the feature of " first ", " second ".In description of the present utility model,
" multiple " are meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect or can communicate each other；Can be joined directly together, the indirect phase of intermediary can also be passed through
Even, can be two element internals connection or two elements interaction relationship, limited unless otherwise clear and definite.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (14)
- A kind of 1. passive valve system, it is characterised in that including：Valve, the valve have opening and closing member；Weight, the weight are connected with the opening and closing member, for activating the opening and closing member to open and close the valve；Temperature-sensitive component, the temperature that the temperature-sensitive component is suitable to be located on the outer surface of container and in the outer surface of the container are more than Shifted during predetermined temperature relative to the outer surface of the container；Executing agency is transmitted, the transmission executing agency is connected with the temperature-sensitive component and the weight respectively, and the transmission is held Row mechanism discharges the weight when the temperature-sensitive component shifts to allow the weight to activate the opening and closing by self gravitation Part.
- 2. passive valve system according to claim 1, it is characterised in that it is fixed that the transmission executing agency includes first Pulley and the first hawser, the first end of first hawser are connected with the temperature-sensitive component, the second end of first hawser around First fixed pulley is crossed with the weight to be connected,Wherein described temperature-sensitive component is when the temperature of the outer surface of the container is more than predetermined temperature in the presence of the weight Upward displacement is to allow the weight to pull the opening and closing member.
- 3. passive valve system according to claim 2, it is characterised in that also fixed sliding including the second hawser and second Wheel, the first end of second hawser are connected with the weight, and the second end of second hawser bypasses second fixed pulley It is connected with the opening and closing member.
- 4. passive valve system according to claim 1, it is characterised in that the transmission executing agency includes：First connector, the first connector first end are connected with the temperature-sensitive component；Elastic component, the first end of the elastic component are fixed, and the second end of the elastic component is connected with first connector；Lever, the first end of the lever are connected with first connector, the ballast support at the second end of the lever,Wherein described temperature-sensitive component is when the temperature of the outer surface of the container is more than predetermined temperature in the assistance of the elastic component Lower displacement pulls the opening and closing member to allow the weight to move down.
- 5. passive valve system according to claim 4, it is characterised in that the elastic component is extension spring and direction Direction away from the container pulls first connector, wherein temperature of the temperature-sensitive component in the outer surface of the container During more than predetermined temperature in the presence of the elastic component upward displacement so as to the second end of the lever move down with allow The weight moves down and pulls the opening and closing member.
- 6. passive valve system according to claim 4, it is characterised in that the elastic component is compression spring and direction The direction of the container promotes first connector, wherein temperature of the temperature-sensitive component in the outer surface of the container is more than Displacement is moved up with described in permission so as to the second end of the lever downwards under the assistance of the elastic component during predetermined temperature Weight moves down along the lever and pulls the opening and closing member.
- 7. passive valve system according to claim 1, it is characterised in that the transmission executing agency includes：Elastic component, the first end of the elastic component are fixed；First fixed pulley；First hawser, the first end of first hawser are connected with the temperature-sensitive component, and the second end of first hawser bypasses First fixed pulley is connected with the elastic component；Lever, the first end of the lever are connected with first hawser, and the ballast support is in the second end of the lever, institute Weight is stated by being connected around the second hawser of the second fixed pulley with the opening and closing member,Wherein described temperature-sensitive component is when the temperature of the outer surface of the container is more than predetermined temperature in the effect of the elastic component Lower upward displacement is so that the second end of the lever is moved down to allow the weight to move down and pulls the opening/closing portion Part.
- 8. the passive valve system according to claim 6 or 7, it is characterised in that fulcrum of the lever in the lever Part between the second end of the lever is provided with recess, and the weight along the lever when being moved down into the recess Fall into and/or through the recess.
- 9. passive valve system according to claim 1, it is characterised in that the temperature-sensitive component includes support, described Transmit executing agency with the support to be connected, the support has low-melting-point metal support column, the low-melting-point metal support column It is connected with the outer surface of the container and fusing is deformed with toilet when the temperature of the outer surface of the container is more than predetermined temperature Support is stated to shift relative to the outer surface of the container.
- 10. passive valve system according to claim 9, it is characterised in that the support also includes top plate and pressure Balance plate, the low-melting-point metal support column are connected with the top plate, the pressure balance plate be located at below the top plate and with The transmission executing agency is connected.
- 11. passive valve system according to claim 9, it is characterised in that the low-melting-point metal support column is by zinc Base alloy material is made.
- 12. passive valve system according to claim 9, it is characterised in that the low-melting-point metal support column by magnesium, At least two alloy materials in tin, antimony and lead are made.
- 13. passive valve system according to claim 1, it is characterised in that the temperature-sensitive component includes being compounded in one The first sheet metal and the second sheet metal risen, the thermal expansion of the thermal coefficient of expansion of first sheet metal and second sheet metal Coefficient is different from each other.
- 14. passive valve system according to claim 13, it is characterised in that the thermal expansion system of first sheet metal Less than the thermal coefficient of expansions of second sheet metal, first sheet metal is connected number with the outer surface of the container, and described the Two sheet metals are connected with the transmission executing agency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398696.7U CN206754567U (en) | 2017-04-14 | 2017-04-14 | Passive valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398696.7U CN206754567U (en) | 2017-04-14 | 2017-04-14 | Passive valve system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754567U true CN206754567U (en) | 2017-12-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108730604A (en) * | 2017-04-14 | 2018-11-02 | 国家电力投资集团公司 | Passive valve system |
| CN108730604B (en) * | 2017-04-14 | 2024-06-07 | 国家电力投资集团公司 | Passive valve system |
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